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e1c0c00cc2
The vfprintf implementation (used for all printf-family functions) contains complicated logic to allocate internal buffers of a size depending on the width and precision used for a format, using either malloc or alloca depending on that size, and with consequent checks for size overflow and allocation failure. As noted in bug 26211, the version of that logic used when '$' plus argument number formats are in use is missing the overflow checks, which can result in segfaults (quite possibly exploitable, I didn't try to work that out) when the width or precision is in the range 0x7fffffe0 through 0x7fffffff (maybe smaller values as well in the wprintf case on 32-bit systems, when the multiplication by sizeof (CHAR_T) can overflow). All that complicated logic in fact appears to be useless. As far as I can tell, there has been no need (outside the floating-point printf code, which does its own allocations) for allocations depending on width or precision since commit3e95f6602b("Remove limitation on size of precision for integers", Sun Sep 12 21:23:32 1999 +0000). Thus, this patch removes that logic completely, thereby fixing both problems with excessive allocations for large width and precision for non-floating-point formats, and the problem with missing overflow checks with such allocations. Note that this does have the consequence that width and precision up to INT_MAX are now allowed where previously INT_MAX / sizeof (CHAR_T) - EXTSIZ or more would have been rejected, so could potentially expose any other overflows where the value would previously have been rejected by those removed checks. I believe this completely fixes bugs 14231 and 26211. Excessive allocations are still possible in the floating-point case (bug 21127), as are other integer or buffer overflows (see bug 26201). This does not address the cases where a precision larger than INT_MAX (embedded in the format string) would be meaningful without printf's return value overflowing (when it's used with a string format, or %g without the '#' flag, so the actual output will be much smaller), as mentioned in bug 17829 comment 8; using size_t internally for precision to handle that case would be complicated by struct printf_info being a public ABI. Nor does it address the matter of an INT_MIN width being negated (bug 17829 comment 7; the same logic appears a second time in the file as well, in the form of multiplying by -1). There may be other sources of memory allocations with malloc in printf functions as well (bug 24988, bug 16060). From inspection, I think there are also integer overflows in two copies of "if ((width -= len) < 0)" logic (where width is int, len is size_t and a very long string could result in spurious padding being output on a 32-bit system before printf overflows the count of output characters). Tested for x86-64 and x86. (cherry picked from commit6caddd34bd)
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GNU C Library NEWS -- history of user-visible changes.
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Copyright (C) 1992-2018 Free Software Foundation, Inc.
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See the end for copying conditions.
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Please send GNU C library bug reports via <https://sourceware.org/bugzilla/>
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using `glibc' in the "product" field.
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Version 2.28.1
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Major new features:
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* The entry for the new Japanese era has been added for ja_JP locale.
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Deprecated and removed features, and other changes affecting compatibility:
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* For powercp64le ABI, Transactional Lock Elision is now enabled iff kernel
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indicates that it will abort the transaction prior to entering the kernel
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(PPC_FEATURE2_HTM_NOSC on hwcap2). On older kernels the transaction is
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suspended, and this caused some undefined side-effects issues by aborting
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transactions manually. Glibc avoided it by abort transactions manually on
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each syscall, but it lead to performance issues on newer kernels where the
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HTM state is saved and restore lazily (the state being saved even when the
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process actually does not use HTM).
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* The copy_file_range function fails with ENOSYS if the kernel does not
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support the system call of the same name. Previously, user space
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emulation was performed, but its behavior did not match the kernel
|
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behavior, which was deemed too confusing. Applications which use the
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copy_file_range function will have to be run on kernels which implement
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the copy_file_range system call. Support for most architectures was added
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in version 4.5 of the mainline Linux kernel.
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The following bugs are resolved with this release:
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[14231] stdio-common tests memory requirements
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[18035] Fix pldd hang
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[19444] build failures with -O1 due to -Wmaybe-uninitialized
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[20018] getaddrinfo should reject IP addresses with trailing characters
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[20019] NULL pointer dereference in libc.so.6 IFUNC due to uninitialized GOT
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[20209] localedata: Spelling mistake for Sunday in Greenlandic kl_GL
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[20568] Fix crash in _IO_wfile_sync
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[22927] libanl: properly cleanup if first helper thread creation failed
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[23400] stdlib/test-bz22786.c creates temporary files in glibc source tree
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[23497] readdir64@GLIBC_2.1 cannot parse the kernel directory stream
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[23509] CET enabled glibc is incompatible with the older linker
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[23521] nss_files aliases database file stream leak
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[23538] pthread_cond_broadcast: Fix waiters-after-spinning case
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[23562] signal: Use correct type for si_band in siginfo_t
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[23578] regex: Fix memory overread in re_compile_pattern
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[23579] libc: Errors misreported in preadv2
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[23606] Missing ENDBR32 in sysdeps/i386/start.S
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[23614] powerpc: missing CFI register information in __mpn_* functions
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[23679] gethostid: Missing NULL check for gethostbyname_r result
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[23709] Fix CPU string flags for Haswell-type CPUs
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[23717] Fix stack overflow in stdlib/tst-setcontext9
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[23821] si_band in siginfo_t has wrong type long int on sparc64
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[23822] ia64 static libm.a is missing exp2f, log2f and powf symbols
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[23864] libc: [riscv] missing kernel-features.h undefines
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[23844] pthread_rwlock_trywrlock results in hang
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[23927] Linux if_nametoindex() does not close descriptor (CVE-2018-19591)
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[23972] __old_getdents64 uses wrong d_off value on overflow
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[24018] gettext may return NULL
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[24022] riscv may lack <asm/syscalls.h>
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[24024] strerror() might set errno to ENOMEM due to -fno-math-error
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[24027] malloc: Integer overflow in realloc
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[24034] tst-cancel21-static fails with SIGBUS on pre-ARMv7 when using GCC 8
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[24040] riscv64: unterminated call chain in __thread_start
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[24097] Can't use 64-bit register for size_t in assembly codes for x32 (CVE-2019-6488)
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[24155] x32 memcmp can treat positive length as 0 (if sign bit in RDX is set) (CVE-2019-7309)
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[24161] __run_fork_handlers self-deadlocks in malloc/tst-mallocfork2
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[24228] old x86 applications that use legacy libio crash on exit
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[24476] dlfcn: Guard __dlerror_main_freeres with __libc_once_get (once)
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[24744] io: Remove the copy_file_range emulation.
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[25203] libio: Disable vtable validation for pre-2.1 interposed handles
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[25204] Ignore LD_PREFER_MAP_32BIT_EXEC for SUID programs
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[25225] ld.so fails to link on x86 if GCC defaults to -fcf-protection
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[25232] No const correctness for strchr et al. for Clang++
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[25414] 'glob' use-after-free bug (CVE-2020-1752)
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[25423] Array overflow in backtrace on powerpc
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[25933] Off by one error in __strncmp_avx2
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[25691] stdio: Remove memory leak from multibyte conversion
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[26211] printf integer overflow calculating allocation size
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[27130] "rep movsb" performance issue
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[27177] GLIBC_TUNABLES=glibc.cpu.x86_ibt=on:glibc.cpu.x86_shstk=on doesn't work
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[27457] vzeroupper use in AVX2 multiarch string functions cause HTM aborts
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[27974] Overflow bug in some implementation of wcsnlen, wmemchr, and wcsncat
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[28755] overflow bug in wcsncmp_avx2 and wcsncmp_evex
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[28896] strncmp-avx2-rtm and wcsncmp-avx2-rtm fallback on non-rtm
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variants when avoiding overflow
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[29530] segfault in printf handling thousands separator
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Security related changes:
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CVE-2018-19591: A file descriptor leak in if_nametoindex can lead to a
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denial of service due to resource exhaustion when processing getaddrinfo
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calls with crafted host names. Reported by Guido Vranken.
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CVE-2019-6488: On x32, the size_t parameter may be passed in the lower
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32 bits of a 64-bit register with with non-zero upper 32 bit. When it
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happened, accessing the 32-bit size_t value as the full 64-bit register
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in the assembly string/memory functions would cause a buffer overflow.
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Reported by H.J. Lu.
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CVE-2019-7309: x86-64 memcmp used signed Jcc instructions to check
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size. For x86-64, memcmp on an object size larger than SSIZE_MAX
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has undefined behavior. On x32, the size_t argument may be passed
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in the lower 32 bits of the 64-bit RDX register with non-zero upper
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32 bits. When it happened with the sign bit of RDX register set,
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memcmp gave the wrong result since it treated the size argument as
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zero. Reported by H.J. Lu.
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CVE-2016-10739: The getaddrinfo function could successfully parse IPv4
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addresses with arbitrary trailing characters, potentially leading to data
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or command injection issues in applications.
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CVE-2019-9169: Attempted case-insensitive regular-expression match
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via proceed_next_node in posix/regexec.c leads to heap-based buffer
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over-read. Reported by Hongxu Chen.
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CVE-2019-19126: ld.so failed to ignore the LD_PREFER_MAP_32BIT_EXEC
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environment variable during program execution after a security
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transition, allowing local attackers to restrict the possible mapping
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addresses for loaded libraries and thus bypass ASLR for a setuid
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program. Reported by Marcin Kościelnicki.
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CVE-2020-1752: A use-after-free vulnerability in the glob function when
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expanding ~user has been fixed.
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Version 2.28
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Major new features:
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* The localization data for ISO 14651 is updated to match the 2016
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Edition 4 release of the standard, this matches data provided by
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Unicode 9.0.0. This update introduces significant improvements to the
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collation of Unicode characters. This release deviates slightly from
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the standard in that the collation element ordering for lowercase and
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uppercase LATIN script characters is adjusted to ensure that regular
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expressions with ranges like [a-z] and [A-Z] don't interleave e.g. A
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is not matched by [a-z]. With the update many locales have been
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updated to take advantage of the new collation information. The new
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collation information has increased the size of the compiled locale
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archive or binary locales.
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* The GNU C Library can now be compiled with support for Intel CET, AKA
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Intel Control-flow Enforcement Technology. When the library is built
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with --enable-cet, the resulting glibc is protected with indirect
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branch tracking (IBT) and shadow stack (SHSTK). CET-enabled glibc is
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compatible with all existing executables and shared libraries. This
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||
feature is currently supported on i386, x86_64 and x32 with GCC 8 and
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binutils 2.29 or later. Note that CET-enabled glibc requires CPUs
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capable of multi-byte NOPs, like x86-64 processors as well as Intel
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Pentium Pro or newer. NOTE: --enable-cet has been tested for i686,
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x86_64 and x32 on non-CET processors. --enable-cet has been tested
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||
for x86_64 and x32 on CET SDVs, but Intel CET support hasn't been
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validated for i686.
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* The GNU C Library now has correct support for ABSOLUTE symbols
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(SHN_ABS-relative symbols). Previously such ABSOLUTE symbols were
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relocated incorrectly or in some cases discarded. The GNU linker can
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make use of the newer semantics, but it must communicate it to the
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dynamic loader by setting the ELF file's identification (EI_ABIVERSION
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field) to indicate such support is required.
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* Unicode 11.0.0 Support: Character encoding, character type info, and
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transliteration tables are all updated to Unicode 11.0.0, using
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generator scripts contributed by Mike FABIAN (Red Hat).
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* <math.h> functions that round their results to a narrower type are added
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from TS 18661-1:2014 and TS 18661-3:2015:
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- fadd, faddl, daddl and corresponding fMaddfN, fMaddfNx, fMxaddfN and
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fMxaddfNx functions.
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- fsub, fsubl, dsubl and corresponding fMsubfN, fMsubfNx, fMxsubfN and
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fMxsubfNx functions.
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- fmul, fmull, dmull and corresponding fMmulfN, fMmulfNx, fMxmulfN and
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fMxmulfNx functions.
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- fdiv, fdivl, ddivl and corresponding fMdivfN, fMdivfNx, fMxdivfN and
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fMxdivfNx functions.
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* Two grammatical forms of month names are now supported for the following
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languages: Armenian, Asturian, Catalan, Czech, Kashubian, Occitan, Ossetian,
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Scottish Gaelic, Upper Sorbian, and Walloon. The following languages now
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support two grammatical forms in abbreviated month names: Catalan, Greek,
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and Kashubian.
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* Newly added locales: Lower Sorbian (dsb_DE) and Yakut (sah_RU) also
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include the support for two grammatical forms of month names.
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* Building and running on GNU/Hurd systems now works without out-of-tree
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patches.
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* The renameat2 function has been added, a variant of the renameat function
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which has a flags argument. If the flags are zero, the renameat2 function
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acts like renameat. If the flag is not zero and there is no kernel
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support for renameat2, the function will fail with an errno value of
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EINVAL. This is different from the existing gnulib function renameatu,
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which performs a plain rename operation in case of a RENAME_NOREPLACE
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flags and a non-existing destination (and therefore has a race condition
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that can clobber the destination inadvertently).
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* The statx function has been added, a variant of the fstatat64
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function with an additional flags argument. If there is no direct
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kernel support for statx, glibc provides basic stat support based on
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the fstatat64 function.
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* IDN domain names in getaddrinfo and getnameinfo now use the system libidn2
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library if installed. libidn2 version 2.0.5 or later is recommended. If
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libidn2 is not available, internationalized domain names are not encoded
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or decoded even if the AI_IDN or NI_IDN flags are passed to getaddrinfo or
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getnameinfo. (getaddrinfo calls with non-ASCII names and AI_IDN will fail
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with an encoding error.) Flags which used to change the IDN encoding and
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decoding behavior (AI_IDN_ALLOW_UNASSIGNED, AI_IDN_USE_STD3_ASCII_RULES,
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NI_IDN_ALLOW_UNASSIGNED, NI_IDN_USE_STD3_ASCII_RULES) have been
|
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deprecated. They no longer have any effect.
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|
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* Parsing of dynamic string tokens in DT_RPATH, DT_RUNPATH, DT_NEEDED,
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DT_AUXILIARY, and DT_FILTER has been expanded to support the full
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range of ELF gABI expressions including such constructs as
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'$ORIGIN$ORIGIN' (if valid). For SUID/GUID applications the rules
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have been further restricted, and where in the past a dynamic string
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token sequence may have been interpreted as a literal string it will
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now cause a load failure. These load failures were always considered
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unspecified behaviour from the perspective of the dynamic loader, and
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for safety are now load errors e.g. /foo/${ORIGIN}.so in DT_NEEDED
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results in a load failure now.
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|
||
* Support for ISO C threads (ISO/IEC 9899:2011) has been added. The
|
||
implementation includes all the standard functions provided by
|
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<threads.h>:
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|
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- thrd_current, thrd_equal, thrd_sleep, thrd_yield, thrd_create,
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thrd_detach, thrd_exit, and thrd_join for thread management.
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|
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- mtx_init, mtx_lock, mtx_timedlock, mtx_trylock, mtx_unlock, and
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mtx_destroy for mutual exclusion.
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|
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- call_once for function call synchronization.
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|
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- cnd_broadcast, cnd_destroy, cnd_init, cnd_signal, cnd_timedwait, and
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cnd_wait for conditional variables.
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|
||
- tss_create, tss_delete, tss_get, and tss_set for thread-local storage.
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|
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Application developers must link against libpthread to use ISO C threads.
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|
||
Deprecated and removed features, and other changes affecting compatibility:
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||
|
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* The nonstandard header files <libio.h> and <_G_config.h> are no longer
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installed. Software that was using either header should be updated to
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use standard <stdio.h> interfaces instead.
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|
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* The stdio functions 'getc' and 'putc' are no longer defined as macros.
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This was never required by the C standard, and the macros just expanded
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to call alternative names for the same functions. If you hoped getc and
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putc would provide performance improvements over fgetc and fputc, instead
|
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investigate using (f)getc_unlocked and (f)putc_unlocked, and, if
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necessary, flockfile and funlockfile.
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|
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* All stdio functions now treat end-of-file as a sticky condition. If you
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read from a file until EOF, and then the file is enlarged by another
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process, you must call clearerr or another function with the same effect
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(e.g. fseek, rewind) before you can read the additional data. This
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||
corrects a longstanding C99 conformance bug. It is most likely to affect
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programs that use stdio to read interactive input from a terminal.
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(Bug #1190.)
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|
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* The macros 'major', 'minor', and 'makedev' are now only available from
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the header <sys/sysmacros.h>; not from <sys/types.h> or various other
|
||
headers that happen to include <sys/types.h>. These macros are rarely
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used, not part of POSIX nor XSI, and their names frequently collide with
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user code; see https://sourceware.org/bugzilla/show_bug.cgi?id=19239 for
|
||
further explanation.
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<sys/sysmacros.h> is a GNU extension. Portable programs that require
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these macros should first include <sys/types.h>, and then include
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<sys/sysmacros.h> if __GNU_LIBRARY__ is defined.
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|
||
* The tilegx*-*-linux-gnu configurations are no longer supported.
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||
|
||
* The obsolete function ustat is no longer available to newly linked
|
||
binaries; the headers <ustat.h> and <sys/ustat.h> have been removed. This
|
||
function has been deprecated in favor of fstatfs and statfs.
|
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|
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* The obsolete function nfsservctl is no longer available to newly linked
|
||
binaries. This function was specific to systems using the Linux kernel
|
||
and could not usefully be used with the GNU C Library on systems with
|
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version 3.1 or later of the Linux kernel.
|
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|
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* The obsolete function name llseek is no longer available to newly linked
|
||
binaries. This function was specific to systems using the Linux kernel
|
||
and was not declared in a header. Programs should use the lseek64 name
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for this function instead.
|
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|
||
* The AI_IDN_ALLOW_UNASSIGNED and NI_IDN_ALLOW_UNASSIGNED flags for the
|
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getaddrinfo and getnameinfo functions have been deprecated. The behavior
|
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previously selected by them is now always enabled.
|
||
|
||
* The AI_IDN_USE_STD3_ASCII_RULES and NI_IDN_USE_STD3_ASCII_RULES flags for
|
||
the getaddrinfo and getnameinfo functions have been deprecated. The STD3
|
||
restriction (rejecting '_' in host names, among other things) has been
|
||
removed, for increased compatibility with non-IDN name resolution.
|
||
|
||
* The fcntl function now have a Long File Support variant named fcntl64. It
|
||
is added to fix some Linux Open File Description (OFD) locks usage on non
|
||
LFS mode. As for others *64 functions, fcntl64 semantics are analogous with
|
||
fcntl and LFS support is handled transparently. Also for Linux, the OFD
|
||
locks act as a cancellation entrypoint.
|
||
|
||
* The obsolete functions encrypt, encrypt_r, setkey, setkey_r, cbc_crypt,
|
||
ecb_crypt, and des_setparity are no longer available to newly linked
|
||
binaries, and the headers <rpc/des_crypt.h> and <rpc/rpc_des.h> are no
|
||
longer installed. These functions encrypted and decrypted data with the
|
||
DES block cipher, which is no longer considered secure. Software that
|
||
still uses these functions should switch to a modern cryptography library,
|
||
such as libgcrypt.
|
||
|
||
* Reflecting the removal of the encrypt and setkey functions above, the
|
||
macro _XOPEN_CRYPT is no longer defined. As a consequence, the crypt
|
||
function is no longer declared unless _DEFAULT_SOURCE or _GNU_SOURCE is
|
||
enabled.
|
||
|
||
* The obsolete function fcrypt is no longer available to newly linked
|
||
binaries. It was just another name for the standard function crypt,
|
||
and it has not appeared in any header file in many years.
|
||
|
||
* We have tentative plans to hand off maintenance of the passphrase-hashing
|
||
library, libcrypt, to a separate development project that will, we hope,
|
||
keep up better with new passphrase-hashing algorithms. We will continue
|
||
to declare 'crypt' in <unistd.h>, and programs that use 'crypt' or
|
||
'crypt_r' should not need to change at all; however, distributions will
|
||
need to install <crypt.h> and libcrypt from a separate project.
|
||
|
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In this release, if the configure option --disable-crypt is used, glibc
|
||
will not install <crypt.h> or libcrypt, making room for the separate
|
||
project's versions of these files. The plan is to make this the default
|
||
behavior in a future release.
|
||
|
||
Changes to build and runtime requirements:
|
||
|
||
GNU make 4.0 or later is now required to build glibc.
|
||
|
||
Security related changes:
|
||
|
||
CVE-2016-6261, CVE-2016-6263, CVE-2017-14062: Various vulnerabilities have
|
||
been fixed by removing the glibc-internal IDNA implementation and using
|
||
the system-provided libidn2 library instead. Originally reported by Hanno
|
||
Böck and Christian Weisgerber.
|
||
|
||
CVE-2017-18269: An SSE2-based memmove implementation for the i386
|
||
architecture could corrupt memory. Reported by Max Horn.
|
||
|
||
CVE-2018-11236: Very long pathname arguments to realpath function could
|
||
result in an integer overflow and buffer overflow. Reported by Alexey
|
||
Izbyshev.
|
||
|
||
CVE-2018-11237: The mempcpy implementation for the Intel Xeon Phi
|
||
architecture could write beyond the target buffer, resulting in a buffer
|
||
overflow. Reported by Andreas Schwab.
|
||
|
||
The following bugs are resolved with this release:
|
||
|
||
[1190] stdio: fgetc()/fread() behaviour is not POSIX compliant
|
||
[6889] manual: 'PWD' mentioned but not specified
|
||
[13575] libc: SSIZE_MAX defined as LONG_MAX is inconsistent with ssize_t,
|
||
when __WORDSIZE != 64
|
||
[13762] regex: re_search etc. should return -2 on memory exhaustion
|
||
[13888] build: /tmp usage during testing
|
||
[13932] math: dbl-64 pow unexpectedly slow for some inputs
|
||
[14092] nptl: Support C11 threads
|
||
[14095] localedata: Review / update collation data from Unicode / ISO
|
||
14651
|
||
[14508] libc: -Wformat warnings
|
||
[14553] libc: Namespace pollution loff_t in sys/types.h
|
||
[14890] libc: Make NT_PRFPREG canonical.
|
||
[15105] libc: Extra PLT references with -Os
|
||
[15512] libc: __bswap_constant_16 not compiled when -Werror -Wsign-
|
||
conversion is given
|
||
[16335] manual: Feature test macro documentation incomplete and out of
|
||
date
|
||
[16552] libc: Unify umount implementations in terms of umount2
|
||
[17082] libc: htons et al.: statement-expressions prevent use on global
|
||
scope with -O1 and higher
|
||
[17343] libc: Signed integer overflow in /stdlib/random_r.c
|
||
[17438] localedata: pt_BR: wrong d_fmt delimiter
|
||
[17662] libc: please implement binding for the new renameat2 syscall
|
||
[17721] libc: __restrict defined as /* Ignore */ even in c11
|
||
[17979] libc: inconsistency between uchar.h and stdint.h
|
||
[18018] dynamic-link: Additional $ORIGIN handling issues (CVE-2011-0536)
|
||
[18023] libc: extend_alloca is broken (questionable pointer comparison,
|
||
horrible machine code)
|
||
[18124] libc: hppa: setcontext erroneously returns -1 as exit code for
|
||
last constant.
|
||
[18471] libc: llseek should be a compat symbol
|
||
[18473] soft-fp: [powerpc-nofpu] __sqrtsf2, __sqrtdf2 should be compat
|
||
symbols
|
||
[18991] nss: nss_files skips large entry in database
|
||
[19239] libc: Including stdlib.h ends up with macros major and minor being
|
||
defined
|
||
[19463] libc: linknamespace failures when compiled with -Os
|
||
[19485] localedata: csb_PL: Update month translations + add yesstr/nostr
|
||
[19527] locale: Normalized charset name not recognized by setlocale
|
||
[19667] string: Missing Sanity Check for malloc calls in file 'testcopy.c'
|
||
[19668] libc: Missing Sanity Check for malloc() in file 'tst-setcontext-
|
||
fpscr.c'
|
||
[19728] network: out of bounds stack read in libidn function
|
||
idna_to_ascii_4i (CVE-2016-6261)
|
||
[19729] network: out of bounds heap read on invalid utf-8 inputs in
|
||
stringprep_utf8_nfkc_normalize (CVE-2016-6263)
|
||
[19818] dynamic-link: Absolute (SHN_ABS) symbols incorrectly relocated by
|
||
the base address
|
||
[20079] libc: Add SHT_X86_64_UNWIND to elf.h
|
||
[20251] libc: 32bit programs pass garbage in struct flock for OFD locks
|
||
[20419] dynamic-link: files with large allocated notes crash in
|
||
open_verify
|
||
[20530] libc: bswap_16 should use __builtin_bswap16() when available
|
||
[20890] dynamic-link: ldconfig: fsync the files before atomic rename
|
||
[20980] manual: CFLAGS environment variable replaces vital options
|
||
[21163] regex: Assertion failure in pop_fail_stack when executing a
|
||
malformed regexp (CVE-2015-8985)
|
||
[21234] manual: use of CFLAGS makes glibc detect no optimization
|
||
[21269] dynamic-link: i386 sigaction sa_restorer handling is wrong
|
||
[21313] build: Compile Error GCC 5.4.0 MIPS with -0S
|
||
[21314] build: Compile Error GCC 5.2.0 MIPS with -0s
|
||
[21508] locale: intl/tst-gettext failure with latest msgfmt
|
||
[21547] localedata: Tibetan script collation broken (Dzongkha and Tibetan)
|
||
[21812] network: getifaddrs() returns entries with ifa_name == NULL
|
||
[21895] libc: ppc64 setjmp/longjmp not fully interoperable with static
|
||
dlopen
|
||
[21942] dynamic-link: _dl_dst_substitute incorrectly handles $ORIGIN: with
|
||
AT_SECURE=1
|
||
[22241] localedata: New locale: Yakut (Sakha) locale for Russia (sah_RU)
|
||
[22247] network: Integer overflow in the decode_digit function in
|
||
puny_decode.c in libidn (CVE-2017-14062)
|
||
[22342] nscd: NSCD not properly caching netgroup
|
||
[22391] nptl: Signal function clear NPTL internal symbols inconsistently
|
||
[22550] localedata: es_ES locale (and other es_* locales): collation
|
||
should treat ñ as a primary different character, sync the collation
|
||
for Spanish with CLDR
|
||
[22638] dynamic-link: sparc: static binaries are broken if glibc is built
|
||
by gcc configured with --enable-default-pie
|
||
[22639] time: year 2039 bug for localtime etc. on 64-bit platforms
|
||
[22644] string: memmove-sse2-unaligned on 32bit x86 produces garbage when
|
||
crossing 2GB threshold (CVE-2017-18269)
|
||
[22646] localedata: redundant data (LC_TIME) for es_CL, es_CU, es_EC and
|
||
es_BO
|
||
[22735] time: Misleading typo in time.h source comment regarding
|
||
CLOCKS_PER_SECOND
|
||
[22753] libc: preadv2/pwritev2 fallback code should handle offset=-1
|
||
[22761] libc: No trailing `%n' conversion specifier in FMT passed from
|
||
`__assert_perror_fail ()' to `__assert_fail_base ()'
|
||
[22766] libc: all glibc internal dlopen should use RTLD_NOW for robust
|
||
dlopen failures
|
||
[22786] libc: Stack buffer overflow in realpath() if input size is close
|
||
to SSIZE_MAX (CVE-2018-11236)
|
||
[22787] dynamic-link: _dl_check_caller returns false when libc is linked
|
||
through an absolute DT_NEEDED path
|
||
[22792] build: tcb-offsets.h dependency dropped
|
||
[22797] libc: pkey_get() uses non-reserved name of argument
|
||
[22807] libc: PTRACE_* constants missing for powerpc
|
||
[22818] glob: posix/tst-glob_lstat_compat failure on alpha
|
||
[22827] dynamic-link: RISC-V ELF64 parser mis-reads flag in ldconfig
|
||
[22830] malloc: malloc_stats doesn't restore cancellation state on stderr
|
||
[22848] localedata: ca_ES: update date definitions from CLDR
|
||
[22862] build: _DEFAULT_SOURCE is defined even when _ISOC11_SOURCE is
|
||
[22884] math: RISCV fmax/fmin handle signalling NANs incorrectly
|
||
[22896] localedata: Update locale data for an_ES
|
||
[22902] math: float128 test failures with GCC 8
|
||
[22918] libc: multiple common of `__nss_shadow_database'
|
||
[22919] libc: sparc32: backtrace yields infinite backtrace with
|
||
makecontext
|
||
[22926] libc: FTBFS on powerpcspe
|
||
[22932] localedata: lt_LT: Update of abbreviated month names from CLDR
|
||
required
|
||
[22937] localedata: Greek (el_GR, el_CY) locales actually need ab_alt_mon
|
||
[22947] libc: FAIL: misc/tst-preadvwritev2
|
||
[22963] localedata: cs_CZ: Add alternative month names
|
||
[22987] math: [powerpc/sparc] fdim inlines errno, exceptions handling
|
||
[22996] localedata: change LC_PAPER to en_US in es_BO locale
|
||
[22998] dynamic-link: execstack tests are disabled when SELinux is
|
||
disabled
|
||
[23005] network: Crash in __res_context_send after memory allocation
|
||
failure
|
||
[23007] math: strtod cannot handle -nan
|
||
[23024] nss: getlogin_r is performing NSS lookups when loginid isn't set
|
||
[23036] regex: regex equivalence class regression
|
||
[23037] libc: initialize msg_flags to zero for sendmmsg() calls
|
||
[23069] libc: sigaction broken on riscv64-linux-gnu
|
||
[23094] localedata: hr_HR: wrong thousands_sep and mon_thousands_sep
|
||
[23102] dynamic-link: Incorrect parsing of multiple consecutive $variable
|
||
patterns in runpath entries (e.g. $ORIGIN$ORIGIN)
|
||
[23137] nptl: s390: pthread_join sometimes block indefinitely (on 31bit
|
||
and libc build with -Os)
|
||
[23140] localedata: More languages need two forms of month names
|
||
[23145] libc: _init/_fini aren't marked as hidden
|
||
[23152] localedata: gd_GB: Fix typo in "May" (abbreviated)
|
||
[23171] math: C++ iseqsig for long double converts arguments to double
|
||
[23178] nscd: sudo will fail when it is run in concurrent with commands
|
||
that changes /etc/passwd
|
||
[23196] string: __mempcpy_avx512_no_vzeroupper mishandles large copies
|
||
(CVE-2018-11237)
|
||
[23206] dynamic-link: static-pie + dlopen breaks debugger interaction
|
||
[23208] localedata: New locale - Lower Sorbian (dsb)
|
||
[23233] regex: Memory leak in build_charclass_op function in file
|
||
posix/regcomp.c
|
||
[23236] stdio: Harden function pointers in _IO_str_fields
|
||
[23250] nptl: Offset of __private_ss differs from GCC
|
||
[23253] math: tgamma test suite failures on i686 with -march=x86-64
|
||
-mtune=generic -mfpmath=sse
|
||
[23259] dynamic-link: Unsubstituted ${ORIGIN} remains in DT_NEEDED for
|
||
AT_SECURE
|
||
[23264] libc: posix_spawnp wrongly executes ENOEXEC in non compat mode
|
||
[23266] nis: stringop-truncation warning with new gcc8.1 in nisplus-
|
||
parser.c
|
||
[23272] math: fma(INFINITY,INFIITY,0.0) should be INFINITY
|
||
[23277] math: nan function should not have const attribute
|
||
[23279] math: scanf and strtod wrong for some hex floating-point
|
||
[23280] math: wscanf rounds wrong; wcstod is ok for negative numbers and
|
||
directed rounding
|
||
[23290] localedata: IBM273 is not equivalent to ISO-8859-1
|
||
[23303] build: undefined reference to symbol
|
||
'__parse_hwcap_and_convert_at_platform@@GLIBC_2.23'
|
||
[23307] dynamic-link: Absolute symbols whose value is zero ignored in
|
||
lookup
|
||
[23313] stdio: libio vtables validation and standard file object
|
||
interposition
|
||
[23329] libc: The __libc_freeres infrastructure is not properly run across
|
||
DSO boundaries.
|
||
[23349] libc: Various glibc headers no longer compatible with
|
||
<linux/time.h>
|
||
[23351] malloc: Remove unused code related to heap dumps and malloc
|
||
checking
|
||
[23363] stdio: stdio-common/tst-printf.c has non-free license
|
||
[23396] regex: Regex equivalence regression in single-byte locales
|
||
[23422] localedata: oc_FR: More updates of locale data
|
||
[23442] build: New warning with GCC 8
|
||
[23448] libc: Out of bounds access in IBM-1390 converter
|
||
[23456] libc: Wrong index_cpu_LZCNT
|
||
[23458] build: tst-get-cpu-features-static isn't added to tests
|
||
[23459] libc: COMMON_CPUID_INDEX_80000001 isn't populated for Intel
|
||
processors
|
||
[23467] dynamic-link: x86/CET: A property note parser bug
|
||
[24112] network: Do not send DNS queries for non-host names (where all
|
||
answers will be rejected)
|
||
|
||
|
||
Version 2.27
|
||
|
||
Major new features:
|
||
|
||
* The GNU C Library can now be compiled with support for building static
|
||
PIE executables (See --enable-static-pie in INSTALL). These static PIE
|
||
executables are like static executables but can be loaded at any address
|
||
and provide additional security hardening benefits at the cost of some
|
||
memory and performance. When the library is built with --enable-static-pie
|
||
the resulting libc.a is usable with GCC 8 and above to create static PIE
|
||
executables using the GCC option '-static-pie'. This feature is currently
|
||
supported on i386, x86_64 and x32 with binutils 2.29 or later, and on
|
||
aarch64 with binutils 2.30 or later.
|
||
|
||
* Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin, cosf,
|
||
sinf, sincosf and tan with FMA, contributed by Arjan van de Ven and
|
||
H.J. Lu from Intel.
|
||
|
||
* Optimized x86-64 trunc and truncf for processors with SSE4.1.
|
||
|
||
* Optimized generic expf, exp2f, logf, log2f, powf, sinf, cosf and sincosf.
|
||
|
||
* In order to support faster and safer process termination the malloc API
|
||
family of functions will no longer print a failure address and stack
|
||
backtrace after detecting heap corruption. The goal is to minimize the
|
||
amount of work done after corruption is detected and to avoid potential
|
||
security issues in continued process execution. Reducing shutdown time
|
||
leads to lower overall process restart latency, so there is benefit both
|
||
from a security and performance perspective.
|
||
|
||
* The abort function terminates the process immediately, without flushing
|
||
stdio streams. Previous glibc versions used to flush streams, resulting
|
||
in deadlocks and further data corruption. This change also affects
|
||
process aborts as the result of assertion failures.
|
||
|
||
* On platforms where long double has the IEEE binary128 format (aarch64,
|
||
alpha, mips64, riscv, s390 and sparc), the math library now implements
|
||
_Float128 interfaces for that type, as defined by ISO/IEC TS 18661-3:2015.
|
||
These are the same interfaces added in version 2.26 for some platforms where
|
||
this format is supported but is not the format of long double.
|
||
|
||
* On platforms with support for _Float64x (aarch64, alpha, i386, ia64,
|
||
mips64, powerpc64le, riscv, s390, sparc and x86_64), the math library now
|
||
implements interfaces for that type, as defined by ISO/IEC TS
|
||
18661-3:2015. These are corresponding interfaces to those supported for
|
||
_Float128.
|
||
|
||
* The math library now implements interfaces for the _Float32, _Float64 and
|
||
_Float32x types, as defined by ISO/IEC TS 18661-3:2015. These are
|
||
corresponding interfaces to those supported for _Float128.
|
||
|
||
* glibc now implements the memfd_create and mlock2 functions on Linux.
|
||
|
||
* Support for memory protection keys was added. The <sys/mman.h> header now
|
||
declares the functions pkey_alloc, pkey_free, pkey_mprotect, pkey_set,
|
||
pkey_get.
|
||
|
||
* The copy_file_range function was added.
|
||
|
||
* Optimized memcpy, mempcpy, memmove, and memset for sparc M7.
|
||
|
||
* The ldconfig utility now processes `include' directives using the C/POSIX
|
||
collation ordering. Previous glibc versions used locale-specific
|
||
ordering, the change might break systems that relied on that.
|
||
|
||
* Support for two grammatical forms of month names has been added.
|
||
In a call to strftime, the "%B" and "%b" format specifiers will now
|
||
produce the grammatical form required when the month is used as part
|
||
of a complete date. New "%OB" and "%Ob" specifiers produce the form
|
||
required when the month is named by itself. For instance, in Greek
|
||
and in many Slavic and Baltic languages, "%B" will produce the month
|
||
in genitive case, and "%OB" will produce the month in nominative case.
|
||
|
||
In a call to strptime, "%B", "%b", "%h", "%OB", "%Ob", and "%Oh"
|
||
are all valid and will all accept any known form of month
|
||
name---standalone or complete, abbreviated or full. In a call to
|
||
nl_langinfo, the query constants MON_1..12 and ABMON_1..12 return
|
||
the strings used by "%B" and "%b", respectively. New query
|
||
constants ALTMON_1..12 and _NL_ABALTMON_1..12 return the strings
|
||
used by "%OB" and "%Ob", respectively.
|
||
|
||
In a locale definition file, use "alt_mon" and "ab_alt_mon" to
|
||
define the strings for %OB and %Ob, respectively; these have the
|
||
same syntax as "mon" and "abmon". These arrays are optional; if they
|
||
are not provided then they have the same content as "mon" and "abmon",
|
||
respectively.
|
||
|
||
These features are provided for locales which define "alt_mon" and/or
|
||
"ab_alt_mon" in their locale source data. This release includes such
|
||
alternative month name data for the following languages: Belarusian,
|
||
Croatian, Greek, Lithuanian, Polish, Russian, and Ukrainian.
|
||
|
||
This feature is currently a GNU extension, but it is expected to
|
||
be added to the next revision of POSIX, and it is also already
|
||
available on some BSD-derived operating systems.
|
||
|
||
This feature will cause existing statically compiled applications
|
||
to fail to load locales and fall back to the builtin C/POSIX locales.
|
||
See notes below for other changes affecting compatibility.
|
||
|
||
* Support for the RISC-V ISA running on Linux has been added. This port
|
||
requires at least binutils-2.30, gcc-7.3.0, and linux-4.15; and is supported
|
||
for the following ISA and ABI pairs:
|
||
|
||
- rv64imac lp64
|
||
- rv64imafdc lp64
|
||
- rv64imafdc lp64d
|
||
|
||
Deprecated and removed features, and other changes affecting compatibility:
|
||
|
||
* Statically compiled applications attempting to load locales compiled for the
|
||
GNU C Library version 2.27 will fail and fall back to the builtin C/POSIX
|
||
locale. The reason for this is that the addition of the new "%OB" and "%Ob",
|
||
support for two grammatical forms of the month names, also extends the locale
|
||
data binary format. Static applications needing locale support must be
|
||
recompiled to match the runtime and data they are deployed with. In some
|
||
distributions there is an upgrade window where dynamically linked applications
|
||
may use a new library but the old locale data and also fall back to the
|
||
builtin C/POSIX locales; restarting the application process is sufficient to
|
||
fix this.
|
||
|
||
* Support for statically linked applications which call dlopen is deprecated
|
||
and will be removed in a future version of glibc. Applications which call
|
||
dlopen need to be linked dynamically instead.
|
||
|
||
* Support for old programs which use internal stdio data structures and
|
||
functions is deprecated. This includes programs which use the C++ streams
|
||
provided by libstdc++ in GCC 2.95. Programs which use the internal
|
||
symbols _IO_adjust_wcolumn, _IO_default_doallocate, _IO_default_finish,
|
||
_IO_default_pbackfail, _IO_default_uflow, _IO_default_xsgetn,
|
||
_IO_default_xsputn, _IO_doallocbuf, _IO_do_write, _IO_file_attach,
|
||
_IO_file_close, _IO_file_close_it, _IO_file_doallocate, _IO_file_fopen,
|
||
_IO_file_init, _IO_file_jumps, _IO_fileno, _IO_file_open,
|
||
_IO_file_overflow, _IO_file_read, _IO_file_seek, _IO_file_seekoff,
|
||
_IO_file_setbuf, _IO_file_stat, _IO_file_sync, _IO_file_underflow,
|
||
_IO_file_write, _IO_file_xsputn, _IO_flockfile, _IO_flush_all,
|
||
_IO_flush_all_linebuffered, _IO_free_backup_area, _IO_free_wbackup_area,
|
||
_IO_init, _IO_init_marker, _IO_init_wmarker, _IO_iter_begin, _IO_iter_end,
|
||
_IO_iter_file, _IO_iter_next, _IO_least_wmarker, _IO_link_in,
|
||
_IO_list_all, _IO_list_lock, _IO_list_resetlock, _IO_list_unlock,
|
||
_IO_marker_delta, _IO_marker_difference, _IO_remove_marker, _IO_seekmark,
|
||
_IO_seekwmark, _IO_str_init_readonly, _IO_str_init_static,
|
||
_IO_str_overflow, _IO_str_pbackfail, _IO_str_seekoff, _IO_str_underflow,
|
||
_IO_switch_to_main_wget_area, _IO_switch_to_wget_mode,
|
||
_IO_unsave_wmarkers, _IO_wdefault_doallocate, _IO_wdefault_finish,
|
||
_IO_wdefault_pbackfail, _IO_wdefault_setbuf, _IO_wdefault_uflow,
|
||
_IO_wdefault_xsgetn, _IO_wdefault_xsputn, _IO_wdoallocbuf, _IO_wdo_write,
|
||
_IO_wfile_jumps, _IO_wfile_overflow, _IO_wfile_sync, _IO_wfile_underflow,
|
||
_IO_wfile_xsputn, _IO_wmarker_delta, or _IO_wsetb may stop working with a
|
||
future version of glibc. Unlike other symbol removals, these old
|
||
applications will not be supported using compatibility symbols.
|
||
|
||
* On GNU/Linux, the obsolete Linux constant PTRACE_SEIZE_DEVEL is no longer
|
||
defined by <sys/ptrace.h>.
|
||
|
||
* libm no longer supports SVID error handling (calling a user-provided
|
||
matherr function on error) or the _LIB_VERSION variable to control error
|
||
handling. (SVID error handling and the _LIB_VERSION variable still work
|
||
for binaries linked against older versions of the GNU C Library.) The
|
||
libieee.a library is no longer provided. math.h no longer defines struct
|
||
exception, or the macros X_TLOSS, DOMAIN, SING, OVERFLOW, UNDERFLOW,
|
||
TLOSS, PLOSS and HUGE.
|
||
|
||
* The libm functions pow10, pow10f and pow10l are no longer supported for
|
||
new programs. Programs should use the standard names exp10, exp10f and
|
||
exp10l for these functions instead.
|
||
|
||
* The mcontext_t type is no longer the same as struct sigcontext. On
|
||
platforms where it was previously the same, this changes the C++ name
|
||
mangling for interfaces involving this type.
|
||
|
||
* The add-ons mechanism for building additional packages at the same time as
|
||
glibc has been removed. The --enable-add-ons configure option is now
|
||
ignored.
|
||
|
||
* The --without-fp configure option is now ignored. Whether hardware
|
||
floating-point instructions are used is now configured based on whether
|
||
the compiler used at configure time (without any options implied by a
|
||
--with-cpu= configure option) uses such instructions.
|
||
|
||
* The res_hnok, res_dnok, res_mailok and res_ownok functions now check that
|
||
the specified string can be parsed as a domain name.
|
||
|
||
* In the malloc_info output, the <heap> element may contain another <aspace>
|
||
element, "subheaps", which contains the number of sub-heaps.
|
||
|
||
* The libresolv function p_secstodate is no longer supported for new
|
||
programs.
|
||
|
||
* The tilepro-*-linux-gnu configuration is no longer supported.
|
||
|
||
* The nonstandard header files <libio.h> and <_G_config.h> are deprecated
|
||
and will be removed in a future release. Software that is still using
|
||
either header should be updated to use standard <stdio.h> interfaces
|
||
instead.
|
||
|
||
libio.h was originally the header for a set of supported GNU extensions,
|
||
but they have not been maintained as such in many years, they are now
|
||
standing in the way of improvements to stdio, and we don't think there are
|
||
any remaining external users. _G_config.h was never intended for public
|
||
use, but predates the bits convention.
|
||
|
||
Changes to build and runtime requirements:
|
||
|
||
* bison version 2.7 or later is required to generate code in the 'intl'
|
||
subdirectory.
|
||
|
||
Security related changes:
|
||
|
||
CVE-2009-5064: The ldd script would sometimes run the program under
|
||
examination directly, without preventing code execution through the
|
||
dynamic linker. (The glibc project disputes that this is a security
|
||
vulnerability; only trusted binaries must be examined using the ldd
|
||
script.)
|
||
|
||
CVE-2017-15670: The glob function, when invoked with GLOB_TILDE,
|
||
suffered from a one-byte overflow during ~ operator processing (either
|
||
on the stack or the heap, depending on the length of the user name).
|
||
Reported by Tim Rühsen.
|
||
|
||
CVE-2017-15671: The glob function, when invoked with GLOB_TILDE,
|
||
would sometimes fail to free memory allocated during ~ operator
|
||
processing, leading to a memory leak and, potentially, to a denial
|
||
of service.
|
||
|
||
CVE-2017-15804: The glob function, when invoked with GLOB_TILDE and
|
||
without GLOB_NOESCAPE, could write past the end of a buffer while
|
||
unescaping user names. Reported by Tim Rühsen.
|
||
|
||
CVE-2017-17426: The malloc function, when called with an object size near
|
||
the value SIZE_MAX, would return a pointer to a buffer which is too small,
|
||
instead of NULL. This was a regression introduced with the new malloc
|
||
thread cache in glibc 2.26. Reported by Iain Buclaw.
|
||
|
||
CVE-2017-1000408: Incorrect array size computation in _dl_init_paths leads
|
||
to the allocation of too much memory. (This is not a security bug per se,
|
||
it is mentioned here only because of the CVE assignment.) Reported by
|
||
Qualys.
|
||
|
||
CVE-2017-1000409: Buffer overflow in _dl_init_paths due to miscomputation
|
||
of the number of search path components. (This is not a security
|
||
vulnerability per se because no trust boundary is crossed if the fix for
|
||
CVE-2017-1000366 has been applied, but it is mentioned here only because
|
||
of the CVE assignment.) Reported by Qualys.
|
||
|
||
CVE-2017-16997: Incorrect handling of RPATH or RUNPATH containing $ORIGIN
|
||
for AT_SECURE or SUID binaries could be used to load libraries from the
|
||
current directory.
|
||
|
||
CVE-2018-1000001: Buffer underflow in realpath function when getcwd function
|
||
succeeds without returning an absolute path due to unexpected behaviour
|
||
of the Linux kernel getcwd syscall. Reported by halfdog.
|
||
|
||
CVE-2018-6485: The posix_memalign and memalign functions, when called with
|
||
an object size near the value of SIZE_MAX, would return a pointer to a
|
||
buffer which is too small, instead of NULL. Reported by Jakub Wilk.
|
||
|
||
CVE-2018-6551: The malloc function, when called with an object size near
|
||
the value of SIZE_MAX, would return a pointer to a buffer which is too
|
||
small, instead of NULL.
|
||
|
||
The following bugs are resolved with this release:
|
||
|
||
[866] glob: glob should match dangling symlinks
|
||
[1062] glob: sysdeps/generic/glob.c merge from gnulib (part 3 of 3)
|
||
[2522] localedata: ca_ES@valencia: new Valencian (meridional Catalan)
|
||
locale
|
||
[5997] math: Very slow execution of sinf function
|
||
[10580] localedata: hr_HR: updated locale
|
||
[10871] locale: 'mon' array should contain both nominative and genitive
|
||
cases
|
||
[12349] localedata: eu_ES: incorrect thousands separator
|
||
[13605] localedata: shn_MM: new Shan locale
|
||
[13805] localedata: ru_RU: currency should use ',' as radix point
|
||
[13953] localedata: km_KH: locale update
|
||
[13994] localedata: mjw_IN: new locale
|
||
[14121] build: make writes .mo files in po directory
|
||
[14333] libc: Fix the race between atexit() and exit()
|
||
[14681] dynamic-link: _dl_get_origin leaks memory via executable link map.
|
||
[14925] localedata: bn_*: LC_IDENTIFICATION.language key should be
|
||
"Bangla"
|
||
[15260] localedata: LC_MESSAGES.{yes,no}{str,expr}: various errors
|
||
[15261] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of full-
|
||
width Latin characters
|
||
[15332] localedata: es_CU: locale update
|
||
[15436] stdio: Don't close or flush stdio streams on abort
|
||
[15537] localedata: lv_LV: invalid collation for Latvian diacritical
|
||
letters
|
||
[16148] localedata: ca_ES: incorrect thousands separator
|
||
[16750] dynamic-link: ldd should not try to execute the binaries
|
||
(CVE-2009-5064)
|
||
[16777] localedata: pl_PL: incorrect thousands separator in locale
|
||
[16905] localedata: hanzi: new collation
|
||
[17563] localedata: cmn_TW: add hanzi collation
|
||
[17750] localedata: wrong collation order of diacritics in most locales
|
||
[17804] libc: scandirat fails with ENOMEM because it checks for errno even
|
||
if malloc succeeded
|
||
[17956] build: Build fails on missing definitions from header file
|
||
nss/nss.h when Mozilla NSS is used for cryptography
|
||
[18203] libc: realpath() does not handle unreachable paths correctly
|
||
[18572] dynamic-link: [arm] Lazy TLSDESC relocation has data race
|
||
[18812] localedata: kab_DZ: new Kabyle Algeria locale
|
||
[18822] libc: Internal functions are called via PLT
|
||
[18858] string: _HAVE_STRING_ARCH_xxx aren't defined for i386 nor x86_64
|
||
[19170] libc: __gmon_start__ defined in hppa in crtn.S
|
||
[19574] libc: glibc should support building static PIE binaries
|
||
[19852] localedata: charmaps/UTF-8: incorrect wcwidth for U+3099 and
|
||
U+309A
|
||
[19971] glob: glob: Do not skip entries with zero d_ino values
|
||
[19982] localedata: fr.po: spelling mistake for error code EXDEV
|
||
[20008] localedata: km_KH: convert to translit_neutral
|
||
[20009] localedata: tr_TR: convert LC_CTYPE to i18n
|
||
[20142] math: [x86_64] Add SSE4.1 trunc, truncf
|
||
[20204] dynamic-link: _dl_open_hook and _dlfcn_hook hardening
|
||
[20482] localedata: de_CH: abbreviated weekdays should be two letters
|
||
[20498] localedata: miq_NI: new Mískitu / Miskito (miq) language locale
|
||
for Nicaragua
|
||
[20532] nss: getaddrinfo uses errno and h_errno without guaranteeing
|
||
they're set, wrong errors returned by gaih_inet when lookup functions
|
||
are not found.
|
||
[20756] localedata: [PATCH] Use Unicode wise thousands separator
|
||
[20826] network: posix/tst-getaddrinfo5 fails on hosts without network
|
||
access
|
||
[20952] localedata: yuw_PG: new locale
|
||
[21084] localedata: charmaps/IBM858: new codepage
|
||
[21161] manual: [PATCH] fix typo in manual/arith.texi on strtoul prototype
|
||
[21242] libc: assert gives pedantic warning in old gcc versions
|
||
[21265] dynamic-link: _dl_runtime_resolve isn't compatible with Intel C++
|
||
__regcall calling convention
|
||
[21309] math: signed integer overflow in sysdeps/ieee754/dbl-64/e_pow.c
|
||
[21326] libc: C99 functions are not declared for C++11 and later if
|
||
_GNU_SOURCE is not predefined by g++
|
||
[21457] libc: sys/ucontext.h namespace
|
||
[21530] libc: tmpfile() should be implemented using O_TMPFILE
|
||
[21660] math: GCC fails to compile a formula with tgmath.h
|
||
[21672] nptl: sys-libs/glibc on ia64 crashes on thread exit: signal
|
||
SIGSEGV, Segmentation fault: pthread_create.c:432: __madvise
|
||
(pd->stackblock, freesize - PTHREAD_STACK_MIN, MADV_DONTNEED);
|
||
[21684] math: tgmath.h handling of complex integers
|
||
[21685] math: tgmath.h handling of bit-fields
|
||
[21686] math: tgmath.h handling of __int128
|
||
[21706] localedata: yesstr and nostr are missing for Breton [LC_MESSAGES]
|
||
locale
|
||
[21745] libc: [powerpc64le] Extra PLT reference with --enable-stack-
|
||
protector=all
|
||
[21750] localedata: column width of characters incompatible with classical
|
||
wcwidth
|
||
[21754] malloc: malloc: Perform as little work as possible after heap
|
||
consistency check failures
|
||
[21780] libc: hppa: p{read,write}v2 does not set ENOSUP on invalid flag
|
||
[21790] libc: Missing __memset_zero_constant_len_parameter in libc.so
|
||
[21791] string: Unused XXX_chk_XXX functions in libc.a
|
||
[21815] dynamic-link: FAIL: elf/tst-prelink-cmp with GCC is defaulted to
|
||
PIE
|
||
[21836] localedata: Removed redundant data (LC_MONETARY) in various Indian
|
||
locales
|
||
[21845] localedata: Added new Locale bho_NP
|
||
[21853] localedata: Fix abday Which looks same as day in zh_SG
|
||
[21854] localedata: Added New Locale en_SC
|
||
[21864] libc: xmalloc.o is compiled with -DMODULE_NAME=libc
|
||
[21871] dynamic-link: _dl_runtime_resolve_avx_opt is slower than
|
||
_dl_runtime_resolve_avx_slow
|
||
[21885] network: getaddrinfo: gethosts does not release resolver context
|
||
on memory allocation failure
|
||
[21899] libc: XPG4.2 sigaction namespace
|
||
[21908] dynamic-link: dynamic linker broke on ia64 (mmap2 consolidation is
|
||
the suspect)
|
||
[21913] libc: static binaries SIGSEGV in __brk when host's gcc is pie-by-
|
||
default (i386)
|
||
[21915] nss: nss_files can return with NSS_STATUS_SUCCESS and a clobbered
|
||
errno value, causing getaddrinfo to fail
|
||
[21920] localedata: Fix p_cs_precedes/n_cs_precedes for mt_MT
|
||
[21922] network: getaddrinfo with AF_INET/AF_INET6 returns EAI_NONAME
|
||
instead of EAI_NODATA
|
||
[21928] libc: sys/ptrace.h: remove obsolete temporary development Linux
|
||
constant PTRACE_SEIZE_DEVEL
|
||
[21930] math: C-only gcc builtins used in <math.h> isinf
|
||
[21932] network: Unpaired __resolv_context_get in generic get*_r
|
||
implementation
|
||
[21941] math: powerpc: Wrong register constraint for xssqrtqp in sqrtf128
|
||
[21944] libc: sigval namespace
|
||
[21951] localedata: Update hanzi collation by stroke
|
||
[21955] math: Wrong alignment of L(SP_RANGE)/L(SP_INF_0) in
|
||
sysdeps/x86_64/fpu/e_expf.S
|
||
[21956] libc: Stack allocation in MIPS syscall impl (ubounded stack
|
||
allocation in syscall loops)
|
||
[21959] localedata: Fix Country name for xh_ZA
|
||
[21960] localedata: Fix abmon for bem_ZM
|
||
[21966] math: AVX2 mathvec functions use FMA without checking
|
||
[21967] math: When 512-bit AVX2 wrapper functions in mathvec are used?
|
||
[21971] localedata: Added New Locale for mfe_MU
|
||
[21972] libc: assert macro requires operator== (int) for its argument type
|
||
[21973] math: [sparc] libm missing sqrtl compat symbol
|
||
[21974] libc: Remove __bb_init_func and __bb_exit_func
|
||
[21982] string: stratcliff.c: error: assuming signed overflow does not
|
||
occur with -O3
|
||
[21986] stdio: __guess_grouping is called incorrectly
|
||
[21987] math: [sparc32] wrong bits/long-double.h installed
|
||
[22019] localedata: Wrong placement of monetary symbol in el_GR (negative
|
||
amounts)
|
||
[22022] localedata: Missing country_name for mni_IN
|
||
[22023] localedata: Removed redundant data (LC_TIME and LC_MESSAGES) for
|
||
niu_NZ
|
||
[22025] locale: iconv: Inconsistency between pointer mangling and NULL
|
||
checks
|
||
[22026] locale: iconv_open: heap overflow on gconv_init failure
|
||
[22028] math: bits/math-finite.h _MSUF_ expansion namespace
|
||
[22035] math: [m68k] bits/math-inline.h macro namespace
|
||
[22038] localedata: Fix abbreviated weeks and months for Somali
|
||
[22044] localedata: Remove redundant data for Limburgish Language
|
||
[22050] malloc: Linking with -lmcheck does not hook
|
||
__malloc_initialize_hook correctly
|
||
[22051] libc: zero terminator in the middle of glibc's .eh_frame
|
||
[22052] malloc: malloc failed to compile with GCC 7 and -O3
|
||
[22070] localedata: charmaps/UTF-8: wcwidth for
|
||
Prepended_Concatenation_Mark codepoints set to 0 (should be 1)
|
||
[22074] localedata: charmaps/UTF-8: wcwidth for U+1160-U+11FF (Hangul
|
||
Jungseong and Jongseong) should be 0
|
||
[22078] nss: nss_files performance issue in multi mode
|
||
[22082] math: bits/math-finite.h exp10 condition
|
||
[22086] libc: pcprofiledump incorrect cross-endian condition
|
||
[22093] dynamic-link: ld.so no longer searches in .../x86_64
|
||
[22095] network: Name server address allocation memory leak in resolv.conf
|
||
parsing after OOM
|
||
[22096] network: __resolv_conf_attach can incorrectly free passed conf
|
||
object
|
||
[22100] localedata: om_KE: LC_TIME: copy redundant data from om_ET
|
||
[22101] dynamic-link: Dynamic loader must ignore "debug" shared objects
|
||
e.g. ET_GNU_DEBUG_*
|
||
[22111] malloc: malloc: per thread cache is not returned when thread exits
|
||
[22112] localedata: Fix LC_TELEPHONE/LC_NAME for az_AZ
|
||
[22134] libc: [linux] implement fexecve with execveat
|
||
[22142] libc: [powerpc] printf oupts a wrong value of DBL_MAX on ppc64 and
|
||
ppc64le
|
||
[22145] libc: ttyname() gives up too early in the face of namespaces
|
||
[22146] math: C++ build issue with float128 on x86_64
|
||
[22153] nptl: nptl: save error code before process termination
|
||
[22156] libc: [hppa,ia64,microblaze] Executable stack default
|
||
[22159] malloc: malloc: MALLOC_CHECK_ broken with --enable-tunables=no
|
||
[22161] nscd: nscd cache prune for netgroups hangs after timeout bump
|
||
[22165] libc: [hppa] Text relocations in libc.so
|
||
[22180] libc: destructor registered via __cxa_atexit is called twice
|
||
[22183] glob: commit 5554304f0ddd ("posix: Allow glob to match dangling
|
||
symlinks") cause "make" segfaults
|
||
[22189] math: [powerpc] math_private.h definitions of math_opt_barrier and
|
||
math_force_eval
|
||
[22207] libc: FAIL: stdlib/test-atexit-race
|
||
[22225] math: nearbyint arithmetic moved before feholdexcept
|
||
[22229] math: [sparc32] missing copysignl, fabsl, fmal compat symbols
|
||
[22235] math: iscanonical in C++ and float128
|
||
[22243] math: log2(0) and log10(0) are wrong in downward rounding without
|
||
the svid compat wrapper
|
||
[22244] math: ynf and yn are wrong without the svid compat wrapper
|
||
[22273] libc: Improper assert in Linux posix_spawn implementation
|
||
[22284] libc: -pg -pie doesn't work
|
||
[22292] locale: localedef exits with error 4 when it should be error 1
|
||
[22294] locale: Allow "" for int_currency_symbol definition in locales.
|
||
[22295] locale: Don't warn on non-symbolic characters in locale sources in
|
||
--verbose.
|
||
[22296] math: glibc 2.26: signbit build issue with Gcc 5.5.0 on x86_64
|
||
[22298] nptl: x32: lockups on recursive pthread_mutex_lock after upgrade
|
||
to 2.26
|
||
[22299] dynamic-link: Problem with $PLATFORM on x86_64 platform
|
||
[22320] glob: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670)
|
||
[22321] libc: sysconf(_SC_IOV_MAX) returns -1 on Linux
|
||
[22322] libc: [mips64] wrong bits/long-double.h installed
|
||
[22325] glob: Memory leak in glob with GLOB_TILDE (CVE-2017-15671)
|
||
[22332] glob: Buffer overflow in glob with GLOB_TILDE in unescaping
|
||
(CVE-2017-15804)
|
||
[22336] localedata: cs_CZ LC_COLLATE does not use i18n
|
||
[22343] malloc: Integer overflow in posix_memalign
|
||
[22347] libc: getrandom() returns the number of bytes that were copied to
|
||
the buffer even though the comments say "Return 0 on success and -1 on
|
||
failure."
|
||
[22353] string: sysdeps/i386/i586/strcpy.S isn't maintainable
|
||
[22362] libc: Installed crt1.o, crti,.o and crtn.o files are used with
|
||
-m32
|
||
[22370] dynamic-link: Incorrect note padding check
|
||
[22375] libc: malloc returns pointer from tcache_get when should return
|
||
NULL (CVE-2017-17426)
|
||
[22377] math: iseqsig, float128 and C++
|
||
[22382] localedata: Error in tpi_PG locale
|
||
[22387] localedata: Replace unicode sequences <Uxxxx> for characters
|
||
inside the ASCII printable range
|
||
[22402] math: [powerpc64le] __MATH_TG does not support _Float128 for
|
||
-mlong-double-64
|
||
[22403] localedata: Slash needs escaping in some locales
|
||
[22408] malloc: malloc_info access heaps without arena lock, ignores heaps
|
||
[22409] network: res_hnok does not accept some host names used on the
|
||
Internet
|
||
[22412] network: res_dnok, res_hnok should perform syntax checks
|
||
[22413] network: ns_name_pton ignores syntactically invalid trailing
|
||
backslash
|
||
[22415] stdio: setvbuf can lead to invalid free/segfault
|
||
[22432] build: Non-deterministic build
|
||
[22439] malloc: malloc_info should compute summary statistics for all sub-
|
||
heaps in an arena
|
||
[22442] network: if_nametoindex could report index for the wrong
|
||
networking interface
|
||
[22446] build: aliasing violation calling readlink in handle_request
|
||
[22447] build: unsafe call to strlen with a non-string in getlogin_r.c
|
||
[22457] libc: Generic preadv/pwritev incorrectly calls __posix_memalign
|
||
[22459] libc: FAIL: elf/check-localplt with __stack_chk_fail related to
|
||
__nscd_hash/__nss_hash
|
||
[22463] network: p_secstodate overflow handling
|
||
[22469] localedata: pl_PL LC_COLLATE does not use i18n
|
||
[22478] libc: sigwait can fail with EINTR
|
||
[22505] libc: ldconfig processes include directive in locale-specific
|
||
order
|
||
[22515] localedata: hsb_DE LC_COLLATE does not use copy "iso14651_t1"
|
||
[22517] localedata: et_EE LC_COLLATE does not use copy "iso14651_t1"
|
||
[22519] localedata: is_IS LC_COLLATE does not use copy "iso14651_t1"
|
||
[22524] localedata: lt_LT LC_COLLATE does not use copy "iso14651_t1"
|
||
[22527] localedata: tr_TR LC_COLLATE does not use copy "iso14651_t1"
|
||
[22534] localedata: Collation rules for Serbian and Bosnian should be the
|
||
same as for Croatian
|
||
[22561] math: [DR#471] cacosh (0 + iNaN) should return NaN +/- i pi/2
|
||
[22568] math: [DR#471] ctanh (0 + iNaN), ctanh (0 + i Inf)
|
||
[22577] libc: missing newline after "cannot allocate TLS data structures
|
||
for initial thread"
|
||
[22588] manual: manual/conf.texi: missing underscore in front of
|
||
SC_SSIZE_MAX
|
||
[22593] math: nextafter and nexttoward are declared with const attribute
|
||
[22596] manual: manual: finite(nan) wrongly described as returning nonzero
|
||
[22603] string: ia64 memchr overflows internal pointer check
|
||
[22605] libc: SH clone does not set the exit code correctly
|
||
[22606] dynamic-link: Incorrect array size computation in _dl_init_paths
|
||
(CVE-2017-1000408)
|
||
[22607] dynamic-link: Buffer Overflow in _dl_init_paths (CVE-2017-1000409)
|
||
[22611] malloc: malloc/tst-realloc wrongly assumes that errno must not be
|
||
modified in case of success
|
||
[22614] build: gcc: error: unrecognized command line option ‘-no-pie’
|
||
[22615] manual: manual: ambiguous wording about errno value in case of
|
||
success
|
||
[22624] libc: MIPS setjmp() saves incorrect 'o0' register in --enable-
|
||
stack-protector=all
|
||
[22625] dynamic-link: RPATH $ORIGIN replaced by PWD for AT_SECURE/SUID
|
||
binaries or if /proc is not mounted (CVE-2017-16997)
|
||
[22627] dynamic-link: $ORIGIN in $LD_LIBRARY_PATH is substituted twice
|
||
[22630] build: $(no-pie-ldflag) is no longer effective
|
||
[22631] math: [m68k] Bad const attributes in bits/mathinline.h
|
||
[22635] nptl: pthread_self returns NULL before libpthread is loaded
|
||
[22636] nptl: PTHREAD_STACK_MIN is too small on x86-64
|
||
[22637] nptl: guard size is subtracted from thread stack size instead of
|
||
adding it on top
|
||
[22648] libc: getrlimit/setrlimit with RLIM_INFINITY broken on alpha
|
||
[22657] localedata: hu_HU: Avoid double space in date
|
||
[22660] math: fmax, fmin sNaN handling on alpha
|
||
[22664] libc: New warning of GCC8
|
||
[22665] math: alpha: ceil and floor raise inexact exceptions
|
||
[22666] math: alpha: trunc raise inexact exceptions
|
||
[22667] libc: makecontext lacks stack alignment on i386
|
||
[22678] libc: prlimit fails for RLIM_INFINITY values on 32-bit machines
|
||
[22679] libc: getcwd(3) can succeed without returning an absolute path
|
||
(CVE-2018-1000001)
|
||
[22685] libc: PowerPC: Static AT_SECURE binaries segfault with lock-
|
||
elision and tunables
|
||
[22687] math: [powerpc-nofpu] complex long double functions spurious
|
||
"invalid" exception
|
||
[22688] math: [powerpc-nofpu] remainderl wrong sign of zero result
|
||
[22690] math: [ldbl-128ibm] lrintl, lroundl missing "invalid" exceptions
|
||
[22691] math: [powerpc-nofpu] fmaxmagl, fminmagl spurious "invalid"
|
||
exception
|
||
[22693] math: [ldbl-128ibm] log1pl (-qNaN) spurious "invalid" exception
|
||
[22697] math: [powerpc] llround spurious "inexact" exceptions on 32-bit
|
||
power4
|
||
[22701] nis: Incomplete removal of libnsl
|
||
[22702] math: [powerpc-nofpu] nearbyintl traps with trapping "inexact"
|
||
[22707] libc: Missing defines in elf.h for DF_1_STUB and DF_1_PIE.
|
||
[22715] dynamic-link: FAIL: elf/tst-audit10
|
||
[22719] libc: Backtrace tests fail on hppa
|
||
[22742] libc: [aarch64] mcontext_t __reserved field got renamed
|
||
[22743] nptl: __pthread_register_cancel corrupts stack after f81ddabffd
|
||
[22765] crypt: (struct crypt_data *data)->initialized is not set to zero
|
||
before the first call to crypt_r () in crypt/badsalttest.c
|
||
|
||
|
||
Version 2.26
|
||
|
||
Major new features:
|
||
|
||
* A per-thread cache has been added to malloc. Access to the cache requires
|
||
no locks and therefore significantly accelerates the fast path to allocate
|
||
and free small amounts of memory. Refilling an empty cache requires locking
|
||
the underlying arena. Performance measurements show significant gains in a
|
||
wide variety of user workloads. Workloads were captured using a special
|
||
instrumented malloc and analyzed with a malloc simulator. Contributed by
|
||
DJ Delorie with the help of Florian Weimer, and Carlos O'Donell.
|
||
|
||
* Unicode 10.0.0 Support: Character encoding, character type info, and
|
||
transliteration tables are all updated to Unicode 10.0.0, using
|
||
generator scripts contributed by Mike FABIAN (Red Hat).
|
||
These updates cause user visible changes, especially the changes in
|
||
wcwidth for many emoji characters cause problems when emoji sequences
|
||
are rendered with pango, see for example:
|
||
https://bugzilla.gnome.org/show_bug.cgi?id=780669#c5
|
||
|
||
* Collation of Hungarian has been overhauled and is now consistent with "The
|
||
Rules of Hungarian Orthography, 12th edition" (Bug 18934). Contributed by
|
||
Egmont Koblinger.
|
||
|
||
* Improvements to the DNS stub resolver, contributed by Florian Weimer:
|
||
|
||
- The GNU C Library will now detect when /etc/resolv.conf has been
|
||
modified and reload the changed configuration. The new resolver option
|
||
“no-reload” (RES_NORELOAD) disables this behavior.
|
||
|
||
- The GNU C Library now supports an arbitrary number of search domains
|
||
(configured using the “search” directive in /etc/resolv.conf);
|
||
previously, there was a hard limit of six domains. For backward
|
||
compatibility, applications that directly modify the ‘_res’ global
|
||
object are still limited to six search domains.
|
||
|
||
- When the “rotate” (RES_ROTATE) resolver option is active, the GNU C
|
||
Library will now randomly pick a name server from the configuration as a
|
||
starting point. (Previously, the second name server was always used.)
|
||
|
||
* The tunables feature is now enabled by default. This allows users to tweak
|
||
behavior of the GNU C Library using the GLIBC_TUNABLES environment variable.
|
||
|
||
* New function reallocarray, which resizes an allocated block (like realloc)
|
||
to the product of two sizes, with a guaranteed clean failure upon integer
|
||
overflow in the multiplication. Originally from OpenBSD, contributed by
|
||
Dennis Wölfing and Rüdiger Sonderfeld.
|
||
|
||
* New wrappers for the Linux-specific system calls preadv2 and pwritev2.
|
||
These are extended versions of preadv and pwritev, respectively, taking an
|
||
additional flags argument. The set of supported flags depends on the
|
||
running kernel; full support currently requires kernel 4.7 or later.
|
||
|
||
* posix_spawnattr_setflags now supports the flag POSIX_SPAWN_SETSID, to
|
||
create a new session ID for the spawned process. This feature is
|
||
scheduled to be added to the next major revision of POSIX; for the time
|
||
being, it is available under _GNU_SOURCE.
|
||
|
||
* errno.h is now safe to use from C-preprocessed assembly language on all
|
||
supported operating systems. In this context, it will only define the
|
||
Exxxx constants, as preprocessor macros expanding to integer literals.
|
||
|
||
* On ia64, powerpc64le, x86-32, and x86-64, the math library now implements
|
||
128-bit floating point as defined by ISO/IEC/IEEE 60559:2011 (IEEE
|
||
754-2008) and ISO/IEC TS 18661-3:2015. Contributed by Paul E. Murphy,
|
||
Gabriel F. T. Gomes, Tulio Magno Quites Machado Filho, and Joseph Myers.
|
||
|
||
To compile programs that use this feature, the compiler must support
|
||
128-bit floating point with the type name _Float128 (as defined by TS
|
||
18661-3) or __float128 (the nonstandard name used by GCC for C++, and for
|
||
C prior to version 7). _GNU_SOURCE or __STDC_WANT_IEC_60559_TYPES_EXT__
|
||
must be defined to make the new interfaces visible.
|
||
|
||
The new functions and macros correspond to those present for other
|
||
floating-point types (except for a few obsolescent interfaces not
|
||
supported for the new type), with F128 or f128 suffixes; for example,
|
||
strtof128, HUGE_VAL_F128 and cosf128. Following TS 18661-3, there are no
|
||
printf or scanf formats for the new type; the strfromf128 and strtof128
|
||
interfaces should be used instead.
|
||
|
||
Deprecated and removed features, and other changes affecting compatibility:
|
||
|
||
* The synchronization that pthread_spin_unlock performs has been changed to
|
||
now be equivalent to a C11 atomic store with release memory order to the
|
||
spin lock's memory location. Previously, several (but not all)
|
||
architectures used stronger synchronization (e.g., containing what is
|
||
often called a full barrier). This change can improve performance, but
|
||
may affect odd fringe uses of spin locks that depend on the previous
|
||
behavior (e.g., using spin locks as atomic variables to try to implement
|
||
Dekker's mutual exclusion algorithm).
|
||
|
||
* The port to Native Client running on ARMv7-A (--host=arm-nacl) has been
|
||
removed.
|
||
|
||
* Sun RPC is deprecated. The rpcgen program, librpcsvc, and Sun RPC headers
|
||
will only be built and installed when the GNU C Library is configured with
|
||
--enable-obsolete-rpc. This allows alternative RPC implementations, such
|
||
as TIRPC or rpcsvc-proto, to be used.
|
||
|
||
* The NIS(+) name service modules, libnss_nis, libnss_nisplus, and
|
||
libnss_compat, are deprecated, and will not be built or installed by
|
||
default.
|
||
|
||
The NIS(+) support library, libnsl, is also deprecated. By default, a
|
||
compatibility shared library will be built and installed, but not headers
|
||
or development libraries. Only a few NIS-related programs require this
|
||
library. (In particular, the GNU C Library has never required programs
|
||
that use 'gethostbyname' to be linked with libnsl.)
|
||
|
||
Replacement implementations based on TIRPC, which additionally support
|
||
IPv6, are available from <https://github.com/thkukuk/>. The configure
|
||
option --enable-obsolete-nsl will cause libnsl's headers, and the NIS(+)
|
||
name service modules, to be built and installed.
|
||
|
||
* The DNS stub resolver no longer performs EDNS fallback. If EDNS or DNSSEC
|
||
support is enabled, the configured recursive resolver must support EDNS.
|
||
(Responding to EDNS-enabled queries with responses which are not
|
||
EDNS-enabled is fine, but FORMERR responses are not.)
|
||
|
||
* res_mkquery and res_nmkquery no longer support the IQUERY opcode. DNS
|
||
servers have not supported this opcode for a long time.
|
||
|
||
* The _res_opcodes variable has been removed from libresolv. It had been
|
||
exported by accident.
|
||
|
||
* <string.h> no longer includes inline versions of any string functions,
|
||
as this kind of optimization is better done by the compiler. The macros
|
||
__USE_STRING_INLINES and __NO_STRING_INLINES no longer have any effect.
|
||
|
||
* The nonstandard header <xlocale.h> has been removed. Most programs should
|
||
use <locale.h> instead. If you have a specific need for the definition of
|
||
locale_t with no other declarations, please contact
|
||
libc-alpha@sourceware.org and explain.
|
||
|
||
* The obsolete header <sys/ultrasound.h> has been removed.
|
||
|
||
* The obsolete signal constant SIGUNUSED is no longer defined by <signal.h>.
|
||
|
||
* The obsolete function cfree has been removed. Applications should use
|
||
free instead.
|
||
|
||
* The stack_t type no longer has the name struct sigaltstack. This changes
|
||
the C++ name mangling for interfaces involving this type.
|
||
|
||
* The ucontext_t type no longer has the name struct ucontext. This changes
|
||
the C++ name mangling for interfaces involving this type.
|
||
|
||
* On M68k GNU/Linux and MIPS GNU/Linux, the fpregset_t type no longer has
|
||
the name struct fpregset. On Nios II GNU/Linux, the mcontext_t type no
|
||
longer has the name struct mcontext. On SPARC GNU/Linux, the struct
|
||
mc_fq, struct rwindow, struct fpq and struct fq types are no longer
|
||
defined in sys/ucontext.h, the mc_fpu_t type no longer has the name struct
|
||
mc_fpu, the gwindows_t type no longer has the name struct gwindows and the
|
||
fpregset_t type no longer has the name struct fpu. This changes the C++
|
||
name mangling for interfaces involving those types.
|
||
|
||
* On S/390 GNU/Linux, the constants defined by <sys/ptrace.h> have been
|
||
synced with the kernel:
|
||
|
||
- PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS and PTRACE_SETFPREGS
|
||
are not supported on this architecture and have been removed.
|
||
|
||
- PTRACE_SINGLEBLOCK, PTRACE_SECCOMP_GET_FILTER, PTRACE_PEEKUSR_AREA,
|
||
PTRACE_POKEUSR_AREA, PTRACE_GET_LAST_BREAK, PTRACE_ENABLE_TE,
|
||
PTRACE_DISABLE_TE and PTRACE_TE_ABORT_RAND have been added.
|
||
|
||
Programs that assume the GET/SETREGS ptrace requests are universally
|
||
available will now fail to build, instead of malfunctioning at runtime.
|
||
|
||
Changes to build and runtime requirements:
|
||
|
||
* Linux kernel 3.2 or later is required at runtime, on all architectures
|
||
supported by that kernel. (This is a change from version 2.25 only for
|
||
x86-32 and x86-64.)
|
||
|
||
* GNU Binutils 2.25 or later is now required to build the GNU C Library.
|
||
|
||
* On most architectures, GCC 4.9 or later is required to build the GNU C
|
||
Library. On powerpc64le, GCC 6.2 or later is required.
|
||
|
||
Older GCC versions and non-GNU compilers are still supported when
|
||
compiling programs that use the GNU C Library. (We do not know exactly
|
||
how old, and some GNU extensions to C may be _de facto_ required. If you
|
||
are interested in helping us make this statement less vague, please
|
||
contact libc-alpha@sourceware.org.)
|
||
|
||
Security related changes:
|
||
|
||
* The DNS stub resolver limits the advertised UDP buffer size to 1200 bytes,
|
||
to avoid fragmentation-based spoofing attacks (CVE-2017-12132).
|
||
|
||
* LD_LIBRARY_PATH is now ignored in binaries running in privileged AT_SECURE
|
||
mode to guard against local privilege escalation attacks (CVE-2017-1000366).
|
||
|
||
* Avoid printing a backtrace from the __stack_chk_fail function since it is
|
||
called on a corrupt stack and a backtrace is unreliable on a corrupt stack
|
||
(CVE-2010-3192).
|
||
|
||
* A use-after-free vulnerability in clntudp_call in the Sun RPC system has been
|
||
fixed (CVE-2017-12133).
|
||
|
||
The following bugs are resolved with this release:
|
||
|
||
[984] network: Respond to changed resolv.conf in gethostbyname
|
||
[5010] network: sunrpc service cleanup causes unwanted port mapper traffic
|
||
[12068] localedata: sc_IT: misspelled yesexpr/day/abday/mon/abmon/date_fmt
|
||
fields
|
||
[12189] libc: __stack_chk_fail should not attempt a backtrace
|
||
(CVE-2010-3192)
|
||
[14096] time: Race condition on timezone/tst-timezone.out
|
||
[14172] localedata: az_IR: new locale
|
||
[14995] build: glibc fails to build if gold is the default linker, even if
|
||
ld.bfd is available
|
||
[15998] build: [powerpc] Set arch_minimum_kernel for powerpc LE
|
||
[16637] network: inet_pton function is accepting IPv6 with bad format
|
||
[16640] string: string/strtok.c: undefined behaviour inconsistent between
|
||
x86 and other generic code
|
||
[16875] localedata: ko_KR: fix lang_name
|
||
[17225] localedata: ar_SY: localized month names for May and June are
|
||
incorrect
|
||
[17297] localedata: da_DK: wrong date_fmt string
|
||
[18907] stdio: Incorrect order of __wur __THROW in <printf.h>
|
||
[18934] localedata: hu_HU: collate: fix multiple bugs and add tests
|
||
[18988] nptl: pthread wastes memory with mlockall(MCL_FUTURE)
|
||
[19066] localedata: ar_SA abbreviated day and month names are in English
|
||
[19569] network: resolv: Support an arbitrary number of search domains
|
||
[19570] network: Implement random DNS server selection in the stub
|
||
resolver
|
||
[19838] locale: localedef fails on PA-RISC
|
||
[19919] localedata: iso14651_t1_common: Correct the Malayalam sorting
|
||
order of 0D36 and 0D37
|
||
[19922] localedata: iso14651_t1_common: Define collation for Malayalam
|
||
chillu characters
|
||
[20098] libc: FAIL: debug/backtrace-tst on hppa
|
||
[20257] network: sunrpc: clntudp_call does not enforce timeout when
|
||
receiving data
|
||
[20275] localedata: locale day/abday/mon/abmon should not have trailing
|
||
whitespace
|
||
[20313] localedata: Update locale data to Unicode 9.0
|
||
[20424] manual: Document how to provide a malloc replacement
|
||
[20496] localedata: agr_PE: new language locale Awajún / Aguaruna (agr)
|
||
for Peru
|
||
[20686] locale: Add el_GR@euro to SUPPORTED.
|
||
[20831] dynamic-link: _dl_map_segments does not test for __mprotect
|
||
failures consistently
|
||
[21015] dynamic-link: Document and fix --enable-bind-now
|
||
[21016] nptl: pthread_cond support is broken on hppa
|
||
[21029] libc: glibc-2.23 (and later) fails to compile with -fno-omit-
|
||
frame-pointer on i386
|
||
[21049] libc: segfault in longjmp_chk() due to clobbered processor
|
||
register
|
||
[21075] libc: unused assigment to %g4 in sparc/sparc{64,32}/clone.S
|
||
[21088] libc: Build fails with --enable-static-nss
|
||
[21094] math: cosf(1.57079697) has 3 ulp error on targets where the
|
||
generic c code is used
|
||
[21109] libc: Tunables broken on big-endian
|
||
[21112] math: powf has large ulp errors with base close to 1 and exponent
|
||
around 4000
|
||
[21115] network: sunrpc: Use-after-free in error path in clntudp_call
|
||
(CVE-2017-12133)
|
||
[21120] malloc: glibc malloc is incompatible with GCC 7
|
||
[21130] math: Incorrect return from y0l (-inf) and y1l (-inf) when linking
|
||
with -lieee
|
||
[21134] math: Exception (divide by zero) not set for y0/y1 (0.0) and y0/y1
|
||
(-0.0) when linking with -lieee
|
||
[21171] math: log10, log2 and lgamma return incorrect results
|
||
[21179] libc: handle R_SPARC_DISP64 and R_SPARC_REGISTER relocs
|
||
[21182] libc: __memchr_sse2: regression in glibc-2.25 on i686
|
||
[21207] localedata: ce_RU: update weekdays from CLDR
|
||
[21209] dynamic-link: LD_HWCAP_MASK read in setuid binaries
|
||
[21217] localedata: Update months from CLDR-31
|
||
[21232] libc: miss posix_fadvise64 on MIPS64 when static linking
|
||
[21243] libc: support_delete_temp_file should issue warning for failed
|
||
remove()
|
||
[21244] libc: support resolv_test_start() socket fd close should be
|
||
checked for errors.
|
||
[21253] libc: localedef randomly segfaults when using -fstack-check due to
|
||
new posix_spawn implementation
|
||
[21258] dynamic-link: Branch predication in _dl_runtime_resolve_avx512_opt
|
||
leads to lower CPU frequency
|
||
[21259] libc: [alpha] termios.h missing IXANY for POSIX
|
||
[21261] libc: [sparc64] bits/setjmp.h namespace
|
||
[21267] network: [mips] bits/socket.h IOC* namespace
|
||
[21268] libc: [alpha] termios.h NL2, NL3 namespace
|
||
[21270] libc: mmap64 silently truncates large offset values
|
||
[21275] libc: posix_spawn always crashes on ia64 now
|
||
[21277] libc: [alpha] termios.h missing IUCLC for UNIX98 and older
|
||
[21280] math: [powerpc] logbl for POWER7 return incorrect results
|
||
[21289] libc: Incorrect declaration for 32-bit platforms with
|
||
_FILE_OFFSET_BITS=64 causes build error
|
||
[21295] network: GETAI(AF_UNSPEC) drops IPv6 addresses if nss module does
|
||
not support gethostbyname4_r
|
||
[21298] nptl: rwlock can deadlock on frequent reader/writer phase
|
||
switching
|
||
[21338] malloc: mallopt M_ARENA_MAX doesn't set the maximum number of
|
||
arenas
|
||
[21340] libc: Support POSIX_SPAWN_SETSID
|
||
[21357] libc: unwind-dw2-fde deadlock when using AddressSanitizer
|
||
[21359] network: ns_name_pack needs additional byte in destination buffer
|
||
[21361] network: resolv: Reduce advertised EDNS0 buffer size to guard
|
||
against fragmentation attacks (CVE-2017-12132)
|
||
[21369] network: resolv: Remove EDNS fallback
|
||
[21371] libc: Missing timespec definition when compiled with _XOPEN_SOURCE
|
||
and _POSIX_C_SOURCE
|
||
[21386] nptl: Assertion in fork for distinct parent PID is incorrect
|
||
[21391] dynamic-link: x86: Set dl_platform and dl_hwcap from CPU features
|
||
[21393] stdio: Missing dup3 error check in freopen, freopen64
|
||
[21396] libc: Use AVX2 memcpy/memset on Skylake server
|
||
[21399] localedata: Bad description for U00EC in
|
||
localedata/charmaps/CP1254
|
||
[21411] malloc: realloc documentation error
|
||
[21426] network: sys/socket.h uio.h namespace
|
||
[21428] libc: [aarch64] tst-backtrace5 testsuite failure
|
||
[21445] libc: signal.h bsd_signal namespace
|
||
[21455] network: Network headers stdint.h namespace
|
||
[21474] network: resolv: res_init does not use RES_DFLRETRY (2) but 4 for
|
||
retry value
|
||
[21475] network: resolv: Overlong search path is truncated mid-label
|
||
[21511] libc: sigstack namespace
|
||
[21512] libc: clone() ends up calling exit_group() through _exit() wrapper
|
||
[21514] libc: sysdeps/unix/sysv/linux/sys/syscall.h:31:27: fatal error:
|
||
bits/syscall.h: No such file or directory
|
||
[21517] libc: struct sigaltstack namespace
|
||
[21528] dynamic-link: Duplicated minimal strtoul implementations in ld.so
|
||
[21533] localedata: Update locale data to Unicode 10.0
|
||
[21537] libc:
|
||
../sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S:44: Error:
|
||
junk at end of line, first unrecognized character is `@'
|
||
[21538] libc: SIG_HOLD missing for XPG4
|
||
[21539] libc: S390: Mismatch between kernel and glibc ptrace.h with
|
||
request 12: PTRACE_SINGLEBLOCK vs PTRACE_GETREGS.
|
||
[21542] libc: Use conservative default for sysconf (_SC_NPROCESSORS_ONLN)
|
||
[21543] libc: sigevent namespace
|
||
[21548] libc: [mips] get/set/make/swap context for MIPS O32 assume wrong
|
||
size for general purpose registers in mcontext_t structure
|
||
[21550] libc: sigwait namespace
|
||
[21552] libc: XPG4 bsd_signal namespace
|
||
[21554] libc: sigpause namespace
|
||
[21560] libc: sys/wait.h signal.h namespace
|
||
[21561] libc: waitid namespace
|
||
[21573] nptl: GCC 7: /usr/bin/install: cannot remove
|
||
'/usr/include/stdlib.h': Permission denied
|
||
[21575] libc: sys/wait.h missing struct rusage definition
|
||
[21584] libc: sigaltstack etc namespace
|
||
[21597] libc: siginterrupt namespace
|
||
[21607] math: hppa: FAIL: math/test-tgmath
|
||
[21609] dynamic-link: Incomplete workaround for GCC __tls_get_addr ABI
|
||
issue on x86-64
|
||
[21622] libc: [tile] missing SA_* for POSIX.1:2008
|
||
[21624] dynamic-link: ld.so: Unsafe alloca allows local attackers to alias
|
||
stack and heap (CVE-2017-1000366)
|
||
[21625] libc: wait3 namespace
|
||
[21654] nss: Incorrect pointer alignment in NSS group merge result
|
||
construction
|
||
[21657] network: Parse interface zone id for node-local multicast
|
||
[21662] string: memcmp-avx2-movbe.S lacks saturating subtraction for
|
||
between_2_3
|
||
[21666] libc: .symver is used on common symbol
|
||
[21668] network: resolv: res_init cross-thread broadcast introduces race
|
||
conditions
|
||
[21687] math: tgmath.h totalorder, totalordermag return type
|
||
[21694] locale: Current Glibc Locale Does Not Support Tok-Pisin and Fiji
|
||
Hindi Locale
|
||
[21696] libc: Incorrect assumption of of __cpu_mask in
|
||
posix/sched_cpucount.c
|
||
[21697] libc: sysdeps/posix/spawni.c: 2 * suspicious condition ?
|
||
[21706] localedata: yesstr and nostr are missing for Breton [LC_MESSAGES]
|
||
locale
|
||
[21707] math: ppc64le: Invalid IFUNC resolver from libgcc calls getauxval,
|
||
leading to relocation crash
|
||
[21709] libc: resolv_conf.c:552: update_from_conf: Assertion
|
||
`resolv_conf_matches (resp, conf)' failed.
|
||
[21710] localedata: Added Samoan language locale for Samoa
|
||
[21711] localedata: Pashto yesstr/nostr locale are missing
|
||
[21715] nptl: sysdeps/nptl/bits/pthreadtypes.h: typedef guard
|
||
__have_pthread_attr_t can cause redefinition of typedef ‘pthread_attr_t’
|
||
[21721] localedata: Incorrect Full Weekday names for ks_IN@devanagari
|
||
[21723] localedata: yesstr/nostr missing for Chinese language locale
|
||
[21724] localedata: yesstr and nostr are missing for Xhosa [LC_MESSAGES]
|
||
locale
|
||
[21727] localedata: yesstr and nostr are missing for Tsonga [LC_MESSAGES]
|
||
locale
|
||
[21728] localedata: New Locale for Tongan language
|
||
[21729] localedata: incorrect LC_NAME fields for hi_IN
|
||
[21733] localedata: yesstr and nostr are missing for zh_HK
|
||
[21734] localedata: Missing yesstr and nostr are for kw_GB
|
||
[21738] libc: misc/tst-preadvwritev2 and misc/tst-preadvwritev64v2 fail
|
||
[21741] libc: Undefined __memmove_chk_XXX and __memset_chk_XXX in libc.a
|
||
[21742] libc: _dl_num_cache_relocations is undefined in libc.a
|
||
[21743] localedata: ks_IN@devanagari: abday strings mismatch the day
|
||
strings
|
||
[21744] libc: Tests failing on --enable-tunables --enable-stack-
|
||
protector=all
|
||
[21749] localedata: Wrong abbreviated day name (“abday”) for
|
||
ar_JO/ar_LB/ar_SY
|
||
[21756] localedata: missing yesstr, nostr for nds_DE and nds_NL
|
||
[21757] localedata: missing yesstr, nostr for pap_AW and pap_CW
|
||
[21759] localedata: missing yesstr and nostr for Tigrinya
|
||
[21760] localedata: Fix LC_MESSAGES and LC_ADDRESS for anp_IN
|
||
[21766] localedata: Wrong LC_MESSAGES for om_ET Locale
|
||
[21767] localedata: Missing Bislama locales
|
||
[21768] localedata: Missing yesstr and nostr for aa_ET
|
||
[21770] localedata: Missing Field in li_NL
|
||
[21778] nptl: Robust mutex may deadlock
|
||
[21779] libc: MicroBlaze segfaults when loading libpthread
|
||
[21783] localedata: Fix int_select international_call_prefixes
|
||
[21784] localedata: Inconsistency in country_isbn
|
||
[21788] localedata: Missing Country Postal Abbreviations
|
||
[21794] localedata: Added-country_isbn-for-Italy
|
||
[21795] localedata: Add/Fix country_isbn for France
|
||
[21796] localedata: Added country_isbn for Republic of Korea
|
||
[21797] localedata: Fix inconsistency in country_isbn and missing prefixes
|
||
[21799] localedata: Added int_select international_call_prefixes
|
||
[21801] localedata: Added int_select international_call_prefixes
|
||
[21804] nptl: Double semicolon in thread-shared-types.h
|
||
[21807] localedata: LC_ADDRESS fix for pap_CW
|
||
[21808] localedata: Fix LC_ADDRESS for pap_AW
|
||
[21821] localedata: Added country_name in mai_IN
|
||
[21822] localedata: Fix LC_TIME for mai_IN
|
||
[21823] localedata: missing yesstr, nostr for sa_IN
|
||
[21825] localedata: Fix name_mrs for mag_IN
|
||
[21828] localedata: 2.26 changelog should mention user visible changes
|
||
with unicode 9.0
|
||
[21835] localedata: Added Maithili language locale for Nepal
|
||
[21838] localedata: Removed redundant data for the_NP
|
||
[21839] localedata: Fix LC_MONETARY for ta_LK
|
||
[21844] localedata: Fix Latin characters and Months Sequence.
|
||
[21848] localedata: Fix mai_NP Title Name
|
||
|
||
|
||
Version 2.25
|
||
|
||
* The feature test macro __STDC_WANT_LIB_EXT2__, from ISO/IEC TR
|
||
24731-2:2010, is supported to enable declarations of functions from that
|
||
TR. Note that not all functions from that TR are supported by the GNU C
|
||
Library.
|
||
|
||
* The feature test macro __STDC_WANT_IEC_60559_BFP_EXT__, from ISO/IEC TS
|
||
18661-1:2014, is supported to enable declarations of functions and macros
|
||
from that TS. Note that not all features from that TS are supported by
|
||
the GNU C Library.
|
||
|
||
* The feature test macro __STDC_WANT_IEC_60559_FUNCS_EXT__, from ISO/IEC TS
|
||
18661-4:2015, is supported to enable declarations of functions and macros
|
||
from that TS. Note that most features from that TS are not supported by
|
||
the GNU C Library.
|
||
|
||
* The nonstandard feature selection macros _REENTRANT and _THREAD_SAFE are
|
||
now treated as compatibility synonyms for _POSIX_C_SOURCE=199506L.
|
||
Since the GNU C Library defaults to a much newer revision of POSIX, this
|
||
will only affect programs that specifically request an old conformance
|
||
mode. For instance, a program compiled with -std=c89 -D_REENTRANT will
|
||
see a change in the visible declarations, but a program compiled with
|
||
just -D_REENTRANT, or -std=c99 -D_POSIX_C_SOURCE=200809L -D_REENTRANT,
|
||
will not.
|
||
|
||
Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
|
||
defined by all multithreaded code, but glibc has not required this for
|
||
many years.
|
||
|
||
* The inclusion of <sys/sysmacros.h> by <sys/types.h> is deprecated. This
|
||
means that in a future release, the macros “major”, “minor”, and “makedev”
|
||
will only be available from <sys/sysmacros.h>.
|
||
|
||
These macros are not part of POSIX nor XSI, and their names frequently
|
||
collide with user code; see for instance glibc bug 19239 and Red Hat bug
|
||
130601. <stdlib.h> includes <sys/types.h> under _GNU_SOURCE, and C++ code
|
||
presently cannot avoid being compiled under _GNU_SOURCE, exacerbating the
|
||
problem.
|
||
|
||
* New <fenv.h> features from TS 18661-1:2014 are added to libm: the
|
||
fesetexcept, fetestexceptflag, fegetmode and fesetmode functions, the
|
||
femode_t type and the FE_DFL_MODE and FE_SNANS_ALWAYS_SIGNAL macros.
|
||
|
||
* Integer width macros from TS 18661-1:2014 are added to <limits.h>:
|
||
CHAR_WIDTH, SCHAR_WIDTH, UCHAR_WIDTH, SHRT_WIDTH, USHRT_WIDTH, INT_WIDTH,
|
||
UINT_WIDTH, LONG_WIDTH, ULONG_WIDTH, LLONG_WIDTH, ULLONG_WIDTH; and to
|
||
<stdint.h>: INT8_WIDTH, UINT8_WIDTH, INT16_WIDTH, UINT16_WIDTH,
|
||
INT32_WIDTH, UINT32_WIDTH, INT64_WIDTH, UINT64_WIDTH, INT_LEAST8_WIDTH,
|
||
UINT_LEAST8_WIDTH, INT_LEAST16_WIDTH, UINT_LEAST16_WIDTH,
|
||
INT_LEAST32_WIDTH, UINT_LEAST32_WIDTH, INT_LEAST64_WIDTH,
|
||
UINT_LEAST64_WIDTH, INT_FAST8_WIDTH, UINT_FAST8_WIDTH, INT_FAST16_WIDTH,
|
||
UINT_FAST16_WIDTH, INT_FAST32_WIDTH, UINT_FAST32_WIDTH, INT_FAST64_WIDTH,
|
||
UINT_FAST64_WIDTH, INTPTR_WIDTH, UINTPTR_WIDTH, INTMAX_WIDTH,
|
||
UINTMAX_WIDTH, PTRDIFF_WIDTH, SIG_ATOMIC_WIDTH, SIZE_WIDTH, WCHAR_WIDTH,
|
||
WINT_WIDTH.
|
||
|
||
* New <math.h> features are added from TS 18661-1:2014:
|
||
|
||
- Signaling NaN macros: SNANF, SNAN, SNANL.
|
||
|
||
- Nearest integer functions: roundeven, roundevenf, roundevenl, fromfp,
|
||
fromfpf, fromfpl, ufromfp, ufromfpf, ufromfpl, fromfpx, fromfpxf,
|
||
fromfpxl, ufromfpx, ufromfpxf, ufromfpxl.
|
||
|
||
- llogb functions: the llogb, llogbf and llogbl functions, and the
|
||
FP_LLOGB0 and FP_LLOGBNAN macros.
|
||
|
||
- Max-min magnitude functions: fmaxmag, fmaxmagf, fmaxmagl, fminmag,
|
||
fminmagf, fminmagl.
|
||
|
||
- Comparison macros: iseqsig.
|
||
|
||
- Classification macros: iscanonical, issubnormal, iszero.
|
||
|
||
- Total order functions: totalorder, totalorderf, totalorderl,
|
||
totalordermag, totalordermagf, totalordermagl.
|
||
|
||
- Canonicalize functions: canonicalize, canonicalizef, canonicalizel.
|
||
|
||
- NaN functions: getpayload, getpayloadf, getpayloadl, setpayload,
|
||
setpayloadf, setpayloadl, setpayloadsig, setpayloadsigf, setpayloadsigl.
|
||
|
||
* The functions strfromd, strfromf, and strfroml, from ISO/IEC TS 18661-1:2014,
|
||
are added to libc. They convert a floating-point number into string.
|
||
|
||
* Most of glibc can now be built with the stack smashing protector enabled.
|
||
It is recommended to build glibc with --enable-stack-protector=strong.
|
||
Implemented by Nick Alcock (Oracle).
|
||
|
||
* The function explicit_bzero, from OpenBSD, has been added to libc. It is
|
||
intended to be used instead of memset() to erase sensitive data after use;
|
||
the compiler will not optimize out calls to explicit_bzero even if they
|
||
are "unnecessary" (in the sense that no _correct_ program can observe the
|
||
effects of the memory clear).
|
||
|
||
* On ColdFire, MicroBlaze, Nios II and SH3, the float_t type is now defined
|
||
to float instead of double. This does not affect the ABI of any libraries
|
||
that are part of the GNU C Library, but may affect the ABI of other
|
||
libraries that use this type in their interfaces.
|
||
|
||
* On x86_64, when compiling with -mfpmath=387 or -mfpmath=sse+387, the
|
||
float_t and double_t types are now defined to long double instead of float
|
||
and double. These options are not the default, and this does not affect
|
||
the ABI of any libraries that are part of the GNU C Library, but it may
|
||
affect the ABI of other libraries that use this type in their interfaces,
|
||
if they are compiled or used with those options.
|
||
|
||
* The getentropy and getrandom functions, and the <sys/random.h> header file
|
||
have been added.
|
||
|
||
* The buffer size for byte-oriented stdio streams is now limited to 8192
|
||
bytes by default. Previously, on Linux, the default buffer size on most
|
||
file systems was 4096 bytes (and thus remains unchanged), except on
|
||
network file systems, where the buffer size was unpredictable and could be
|
||
as large as several megabytes.
|
||
|
||
* The <sys/quota.h> header now includes the <linux/quota.h> header. Support
|
||
for the Linux quota interface which predates kernel version 2.4.22 has
|
||
been removed.
|
||
|
||
* The malloc_get_state and malloc_set_state functions have been removed.
|
||
Already-existing binaries that dynamically link to these functions will
|
||
get a hidden implementation in which malloc_get_state is a stub. As far
|
||
as we know, these functions are used only by GNU Emacs and this change
|
||
will not adversely affect already-built Emacs executables. Any undumped
|
||
Emacs executables, which normally exist only during an Emacs build, should
|
||
be rebuilt by re-running “./configure; make” in the Emacs build tree.
|
||
|
||
* The “ip6-dotint” and “no-ip6-dotint” resolver options, and the
|
||
corresponding RES_NOIP6DOTINT flag from <resolv.h> have been removed.
|
||
“no-ip6-dotint” had already been the default, and support for the
|
||
“ip6-dotint” option was removed from the Internet in 2006.
|
||
|
||
* The "ip6-bytestring" resolver option and the corresponding RES_USEBSTRING
|
||
flag from <resolv.h> have been removed. The option relied on a
|
||
backwards-incompatible DNS extension which was never deployed on the
|
||
Internet.
|
||
|
||
* The flags RES_AAONLY, RES_PRIMARY, RES_NOCHECKNAME, RES_KEEPTSIG,
|
||
RES_BLAST defined in the <resolv.h> header file have been deprecated.
|
||
They were already unimplemented.
|
||
|
||
* The "inet6" option in /etc/resolv.conf and the RES_USE_INET6 flag for
|
||
_res.flags are deprecated. The flag was standardized in RFC 2133, but
|
||
removed again from the IETF name lookup interface specification in RFC
|
||
2553. Applications should use getaddrinfo instead.
|
||
|
||
* DNSSEC-related declarations and definitions have been removed from the
|
||
<arpa/nameser.h> header file, and libresolv will no longer attempt to
|
||
decode the data part of DNSSEC record types. Previous versions of glibc
|
||
only implemented minimal support for the previous version of DNSSEC, which
|
||
is incompatible with the currently deployed version.
|
||
|
||
* The resource record type classification macros ns_t_qt_p, ns_t_mrr_p,
|
||
ns_t_rr_p, ns_t_udp_p, ns_t_xfr_p have been removed from the
|
||
<arpa/nameser.h> header file because the distinction between RR types and
|
||
meta-RR types is not officially standardized, subject to revision, and
|
||
thus not suitable for encoding in a macro.
|
||
|
||
* The types res_sendhookact, res_send_qhook, re_send_rhook, and the qhook
|
||
and rhook members of the res_state type in <resolv.h> have been removed.
|
||
The glibc stub resolver did not support these hooks, but the header file
|
||
did not reflect that.
|
||
|
||
* For multi-arch support it is recommended to use a GCC which has
|
||
been built with support for GNU indirect functions. This ensures
|
||
that correct debugging information is generated for functions
|
||
selected by IFUNC resolvers. This support can either be enabled by
|
||
configuring GCC with '--enable-gnu-indirect-function', or by
|
||
enabling it by default by setting 'default_gnu_indirect_function'
|
||
variable for a particular architecture in the GCC source file
|
||
'gcc/config.gcc'.
|
||
|
||
* GDB pretty printers have been added for mutex and condition variable
|
||
structures in POSIX Threads. When installed and loaded in gdb these pretty
|
||
printers show various pthread variables in human-readable form when read
|
||
using the 'print' or 'display' commands in gdb.
|
||
|
||
* Tunables feature added to allow tweaking of the runtime for an application
|
||
program. This feature can be enabled with the '--enable-tunables' configure
|
||
flag. The GNU C Library manual has details on usage and README.tunables has
|
||
instructions on adding new tunables to the library.
|
||
|
||
* A new version of condition variables functions have been implemented in
|
||
the NPTL implementation of POSIX Threads to provide stronger ordering
|
||
guarantees.
|
||
|
||
* A new version of pthread_rwlock functions have been implemented to use a more
|
||
scalable algorithm primarily through not using a critical section anymore to
|
||
make state changes.
|
||
|
||
Security related changes:
|
||
|
||
* On ARM EABI (32-bit), generating a backtrace for execution contexts which
|
||
have been created with makecontext could fail to terminate due to a
|
||
missing .cantunwind annotation. This has been observed to lead to a hang
|
||
(denial of service) in some Go applications compiled with gccgo. Reported
|
||
by Andreas Schwab. (CVE-2016-6323)
|
||
|
||
* The DNS stub resolver functions would crash due to a NULL pointer
|
||
dereference when processing a query with a valid DNS question type which
|
||
was used internally in the implementation. The stub resolver now uses a
|
||
question type which is outside the range of valid question type values.
|
||
(CVE-2015-5180)
|
||
|
||
The following bugs are resolved with this release:
|
||
|
||
[4099] stdio: Overly agressive caching by stream i/o functions.
|
||
[7065] build: Support building glibc with -fstack-protector or -fstack-
|
||
protector-all
|
||
[9842] localedata: en_CA: incorrect date format
|
||
[13165] nptl: pthread_cond_wait() can consume a signal that was sent
|
||
before it started waiting
|
||
[14139] manual: Do not hardcode platform names in manual/libm-err-tab.pl
|
||
[15765] nptl: sem_open is wrongly a cancellation point
|
||
[16421] network: IN6_IS_ADDR_UNSPECIFIED can use undefined s6_addr32
|
||
[16458] libc: endian.h and netinet/in.h byte order macros return values of
|
||
wrong type
|
||
[16628] dynamic-link: Segfault after a binary without pthread dlopen()s a
|
||
library linked with pthread
|
||
[16630] nptl: Use SYSENTER for pthread_cond_broadcast/signal() (i.e. fix
|
||
"FIXME: Ingo" issue)
|
||
[16907] libc: <argp.h> compiled with --std=cXX disables __attribute__
|
||
[17252] libc: getrandom and getentropy syscall
|
||
[17730] malloc: thread-local storage is sometimes improperly free()'d
|
||
after being __libc_memalign()'d
|
||
[18241] stdio: failed fseek on memstream does not set errno and can fail
|
||
when it shouldnt
|
||
[18243] nptl: sem_wait, sem_timedwait are cancellation points shm_open is
|
||
not
|
||
[18463] nptl: pthread_cond_broadcast issue when surrounded by
|
||
PTHREAD_PRIO_INHERIT mutex on ARM
|
||
[18784] network: res_query and related function crash for special record
|
||
type queries (CVE-2015-5180)
|
||
[19380] math: strtod does not raise "inexact"
|
||
[19387] string: Integer overflow in memchr
|
||
[19390] string: Integer overflow in strncat
|
||
[19398] build: linknamespace tests fail with massively parallel build
|
||
[19402] nptl: Deadlock with robust shared mutex and asynchronous
|
||
termination
|
||
[19469] malloc: M_PERTURB in test-skeleton.c invalidates malloc tests
|
||
[19473] malloc: Turn malloc_get_state etc. in compatibility symbols
|
||
[19514] libc: [PATCH] Fix spelling errors in spelling
|
||
"implement"/"implementation" in several places
|
||
[19582] network: Deprecate RES_USE_INET6
|
||
[19673] manual: clog10 docs appear to be erroneous
|
||
[19810] dynamic-link: dlopen with both RTLD_NOLOAD and RTLD_NODELETE
|
||
causes a segmentation fault
|
||
[19826] libc: invalid pointer returned from __tls_get_addr with static
|
||
linking
|
||
[20016] network: resolv: Remove hooks support from the API
|
||
[20019] dynamic-link: NULL pointer dereference in libc.so.6 IFUNC due to
|
||
uninitialized GOT
|
||
[20033] math: [x86_64] vectorized math function don't call the __finite
|
||
versions
|
||
[20116] nptl: use after free in pthread_create
|
||
[20181] stdio: open_memstream(): writes not at end of stream corrupt data
|
||
[20292] dynamic-link: Comparison in elf/dl-open.c _dl_addr_inside_object
|
||
is always true.
|
||
[20311] nptl: please install proc_service.h
|
||
[20366] libc: Compilation errors in installed headers in strict-compliance
|
||
modes
|
||
[20370] malloc: malloc: Arena free list management is still racy
|
||
(incorrect fix in bug 19243)
|
||
[20386] libc: assert (X = 0) does not result in GCC warning
|
||
[20432] malloc: malloc: Minimize interface required for interposition
|
||
[20435] libc: Missing unwind info in __startcontext causes infinite loop
|
||
in _Unwind_Backtrace (CVE-2016-6323)
|
||
[20444] hurd: recvmsg: PF_LOCAL sockets and msg_name lead to SIGLOST
|
||
[20452] nptl: Addition of sysdep.o to libpthread.a breaks relinking
|
||
libpthread.a
|
||
[20455] math: [powerpc] fesetexceptflag fails to clear FE_INVALID
|
||
[20459] localedata: et_EE: locale has wrong {p,n}_cs_precedes value
|
||
[20477] network: resolv: incorrect double-checked locking related to
|
||
_res_hconf
|
||
[20478] libc: libc_ifunc macro and similar usages leads to false debug-
|
||
information.
|
||
[20495] math: x86_64 performance degradation due to AVX/SSE transition
|
||
penalty
|
||
[20497] localedata: lt_LT: LC_TIME d_fmt used is obsolete
|
||
[20508] dynamic-link: _dl_runtime_resolve_avx/_dl_runtime_profile_avx512
|
||
cause transition penalty
|
||
[20517] math: sparcv9 missing fdiml compat symbol
|
||
[20524] manual: strverscmp is inconsistent
|
||
[20525] libc: <sys/quota.h> should be based on kernel headers
|
||
[20539] math: GCC 7 -static -lm fails to link at -O3
|
||
[20554] libc: ld: bss-plt forced due to /usr/lib/libc_nonshared.a(ppc-
|
||
mcount.oS)
|
||
[20558] string: POSIX bcopy/bzero decls do not implement Object Size
|
||
Checking
|
||
[20591] network: Remove obsolete DNSSEC support
|
||
[20592] network: DNS resource record type classification macros in
|
||
<arpa/nameser.h> are incorrect
|
||
[20593] network: Update DNS RR type definitions
|
||
[20611] network: getaddrinfo accepts invalid numeric scope IDs
|
||
[20615] build: glibc build fails when using --with-cpu=power9 --enable-
|
||
multi-arch
|
||
[20629] network: libresolv: Remove support for bitstring labels
|
||
(RES_USEBSTRING)
|
||
[20647] libc: GLIBC quitting every program - glibc on Pentium-S leads to
|
||
assertion: "maxidx >= 2"
|
||
[20660] math: [arm] Use VSQRT
|
||
[20662] libc: checking whether x86_64-pc-linux-gnu-gcc implicitly enables
|
||
-fstack-protector no (32bit gcc 6.2.0 pie and ssp enable)
|
||
[20689] libc: Test for FMA should also check for AVX.
|
||
[20707] glob: gl_pathv entries not set to NULL with GLOB_DOOFFS
|
||
[20715] math: iszero macro breaks existing code
|
||
[20718] math: [powerpc] copysignl raises "invalid" for sNaN
|
||
[20728] libc: powerpc: Missing TOC stub in clone
|
||
[20729] build: glibc-2.24 fails to build for i486 with -Os
|
||
[20750] build: Build fails with default PIE enabled gcc-6.x
|
||
[20768] math: [alpha] sqrt fegetenv namespace
|
||
[20785] libc: binutils 2.28 fails to assemble power6/memset.S file in
|
||
glibc
|
||
[20787] math: float_t is defined as float incorrectly on x86_64 even if
|
||
__FLT_EVAL_METHOD__ is 2
|
||
[20790] network: rpcgen buffer overrun in get_prog_declaration
|
||
[20822] nptl: race condition in __lll_unlock_elision on powerpc
|
||
[20829] libc: crypt snprintf namespace
|
||
[20847] libc: tst-vfork3 failure
|
||
[20855] math: Default bits/mathdef.h has inappropriate float_t
|
||
[20859] math: [sh4] FP_ILOGB0 invalid
|
||
[20864] localedata: iconv: cp936 missing single-byte euro sign (0x80,
|
||
U+20AC), not same as GBK
|
||
[20915] dynamic-link: global-dynamic TLS broken on aarch64
|
||
[20916] math: pow handling of sNaN arguments
|
||
[20918] build: Building with --enable-nss-crypt fails tst-linkall-static.
|
||
[20919] math: Bad pow (qNaN, 0) result with -lieee
|
||
[20940] math: hypot sNaN handling
|
||
[20947] math: fmax, fmin sNaN handling
|
||
[20956] libc: debug/tst-backtrace3-6 don't work with -O3 anymore
|
||
[20964] network: sunrpc: Stack-based buffer overflow in getrpcport with
|
||
RES_USE_INET6
|
||
[20971] string: powerpc64/power7 memchr overflows internal pointer check
|
||
[20973] nptl: robust mutexes: Lost wake-ups
|
||
[20974] locale: bs_BA: yesexpr/noexpr regexes accept any character
|
||
[20978] nis: strlen on null pointer in nss_nisplus
|
||
[20985] nptl: robust mutexes: lowlevelrobustlock assembly on x86 blocks on
|
||
wrong condition
|
||
[21014] string: i686 memchr overflows internal pointer check
|
||
[21019] libc: [mips] n32 lseek incorrect on overflow
|
||
[21022] libc: [microblaze] __backtrace get_frame_size namespace
|
||
[21026] libc: [MIPS] readahead syscall is broken on n64
|
||
[21028] math: Fallback fesetexceptflag should always succeed
|
||
[21045] libc: [powerpc-nofpu] swapcontext does not restore signal mask
|
||
[21047] math: arm: fpu_control.h: _FPU_GETCW/_FPU_SETCW is rejected by
|
||
clang
|
||
[21053] libc: [SH] Namespace pollution from sys/ucontext.h
|
||
[21061] librt: [microblaze] librt lost clock_* exports
|
||
[21073] libc: tunables: insecure environment variables passed to
|
||
subprocesses with AT_SECURE
|
||
[21081] string: Missing vzeroupper in memset-vec-unaligned-erms.S
|
||
|
||
Version 2.24
|
||
|
||
* The minimum Linux kernel version that this version of the GNU C Library
|
||
can be used with is 3.2, except on i[4567]86 and x86_64, where Linux
|
||
kernel version 2.6.32 or later suffices (on architectures that already
|
||
required kernel versions more recent than 3.2, those requirements remain
|
||
unchanged). Linux 3.2 or later kernel headers are required on all
|
||
architectures.
|
||
|
||
* The pap_AN locale has been deleted. This has been deprecated for a long
|
||
time. It has been replaced by pap_AW & pap_CW, both of which have long
|
||
been included in previous releases.
|
||
|
||
* The readdir_r and readdir64_r functions have been deprecated. It is
|
||
recommended to use readdir and readdir64 instead.
|
||
|
||
* The type “union wait” has been removed. It was deprecated in the early
|
||
1990s and never part of POSIX. Application code should use the int type
|
||
instead of “union wait”.
|
||
|
||
* A new NSS action is added to facilitate large distributed system
|
||
administration. The action, MERGE, allows remote user stores like LDAP
|
||
to be merged into local user stores like /etc/groups in order to provide
|
||
easy to use, updated, and managed sets of merged credentials. The new
|
||
action can be used by configuring it in /etc/nsswitch.conf:
|
||
group: files [SUCCESS=merge] nis
|
||
Implemented by Stephen Gallagher (Red Hat).
|
||
|
||
* The deprecated __malloc_initialize_hook variable has been removed from the
|
||
API.
|
||
|
||
* The long unused localedef --old-style option has been removed. It hasn't
|
||
done anything in over 16 years. Scripts using this option can safely
|
||
drop it.
|
||
|
||
* nextupl, nextup, nextupf, nextdownl, nextdown and nextdownf are added to
|
||
libm. They are defined by TS 18661 and IEEE754-2008. The nextup functions
|
||
return the next representable value in the direction of positive infinity
|
||
and the nextdown functions return the next representable value in the
|
||
direction of negative infinity. These are currently enabled as GNU
|
||
extensions.
|
||
|
||
Security related changes:
|
||
|
||
* An unnecessary stack copy in _nss_dns_getnetbyname_r was removed. It
|
||
could result in a stack overflow when getnetbyname was called with an
|
||
overly long name. (CVE-2016-3075)
|
||
|
||
* Previously, getaddrinfo copied large amounts of address data to the stack,
|
||
even after the fix for CVE-2013-4458 has been applied, potentially
|
||
resulting in a stack overflow. getaddrinfo now uses a heap allocation
|
||
instead. Reported by Michael Petlan. (CVE-2016-3706)
|
||
|
||
* The glob function suffered from a stack-based buffer overflow when it was
|
||
called with the GLOB_ALTDIRFUNC flag and encountered a long file name.
|
||
Reported by Alexander Cherepanov. (CVE-2016-1234)
|
||
|
||
* The Sun RPC UDP client could exhaust all available stack space when
|
||
flooded with crafted ICMP and UDP messages. Reported by Aldy Hernandez'
|
||
alloca plugin for GCC. (CVE-2016-4429)
|
||
|
||
* The IPv6 name server management code in libresolv could result in a memory
|
||
leak for each thread which is created, performs a failing naming lookup,
|
||
and exits. Over time, this could result in a denial of service due to
|
||
memory exhaustion. Reported by Matthias Schiffer. (CVE-2016-5417)
|
||
|
||
The following bugs are resolved with this release:
|
||
|
||
[1170] localedata: ne_NP: update Nepali locale definition file
|
||
[3629] manual: stpcpy description in string.texi refers to MS-DOG instead
|
||
of MS-DOS.
|
||
[6527] malloc: [powerpc] Malloc alignment insufficient for PowerPC
|
||
[6796] math: fdim() does not set errno on overflow
|
||
[10354] libc: posix_spawn should use vfork() in more cases than presently
|
||
[11213] localedata: localedata: add copyright disclaimer to locale files
|
||
[12143] localedata: chr_US: new Cherokee locale
|
||
[12450] localedata: sgs_LT: new locale
|
||
[12676] localedata: ln_CD: new locale
|
||
[13237] localedata: LC_ADDRESS.country_name: update all locales w/latest
|
||
CLDR data
|
||
[13304] math: fma, fmaf, fmal produce wrong results
|
||
[14259] build: --localedir arg to configure is ignored
|
||
[14499] nptl: Does posix_spawn invoke atfork handlers / use vfork?
|
||
[14750] libc: Race condition in posix_spawn vfork usage vs signal handlers
|
||
[14934] localedata: es_CL: wrong first weekday chilean locale
|
||
[15262] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of
|
||
romanisation
|
||
[15263] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of 1/0
|
||
and +/-
|
||
[15264] localedata: LC_MESSAGES.yesstr/nostr: lacking in many locales
|
||
[15368] nptl: raise() is not async-signal-safe
|
||
[15479] math: ceil, floor, round and trunc raise inexact exception
|
||
[15578] localedata: kk_KZ: various updates
|
||
[16003] localedata: pap_AN: punt old locale
|
||
[16137] localedata: iw_IL: punt old locale
|
||
[16190] localedata: eo: new esperanto locale
|
||
[16374] localedata: lv_LV: change currency symbol in LC_MONETARY to euro
|
||
[16742] malloc: race condition: pthread_atfork() called before first
|
||
malloc() results in unexpected locking behaviour/deadlocks
|
||
[16975] localedata: LC_MESSAGES.yesexpr/noexpr: revisit capitalization in
|
||
all locales
|
||
[16983] localedata: postal_fmt does not allow %l and %n modifiers
|
||
[17565] localedata: pt_PT: wrong (work-)week start
|
||
[17899] math: [powerpc] floorl returns negative zero with FE_DOWNWARD
|
||
[17950] build: Build fails with -msse
|
||
[18205] localedata: be_BY*: wrong first_weekday and first_workday
|
||
[18433] libc: posix_spawn does not return correctly upon failure to
|
||
execute
|
||
[18453] localedata: charmaps/IBM875: incorrect codes
|
||
[18712] string: bits/string2.h incompatible with -O2 -Werror=packed
|
||
-Wsystem-headers
|
||
[18896] localedata: he_IL: improvements for currency
|
||
[18911] localedata: ro_RO: Correcting week day name for "Tuesday" in
|
||
Romanian locale data
|
||
[18960] locale: s390: _nl_locale_subfreeres uses larl opcode on misaligned
|
||
symbol
|
||
[19056] libc: Deprecate readdir_r
|
||
[19133] localedata: pt_*: days & months should be lowercase in Portuguese
|
||
language
|
||
[19198] localedata: nl_NL: small improvements for Dutch locales
|
||
[19257] network: Per-thread memory leak in __res_vinit with IPv6
|
||
nameservers (CVE-2016-5417)
|
||
[19269] build: tst-audit4 and tst-audit10 failures with gcc-6 on non avx
|
||
machine
|
||
[19400] locale: Language missing in "iso-639.def", trivial fix in
|
||
description
|
||
[19431] malloc: Deadlock between fflush, getdelim, and fork
|
||
[19505] libc: Incorrect file descriptor validity checks in
|
||
posix_spawn_file_actions_add{open,close,dup2}
|
||
[19509] dynamic-link: dlsym, dlvsym do not report errors through dlerror
|
||
when using RTLD_NEXT
|
||
[19512] locale: Stale `#ifndef HAVE_BUILTIN_EXPECT' in
|
||
`intl/{gettextP,loadinfo}.h'
|
||
[19534] libc: execle, execlp may use malloc
|
||
[19568] localedata: *_CH: Swiss locales have inconsistent start of week
|
||
[19573] network: res_nclose and __res_maybe_init disagree about name
|
||
server initialization, breaking Hesiod
|
||
[19575] localedata: Status of GB18030 tables
|
||
[19581] localedata: sr_* date_fmt string contains additional newline
|
||
[19583] string: SSSE3_Fast_Copy_Backward flag needs to be enabled for AMD
|
||
Excavator core
|
||
[19592] math: [ldbl-128ibm] ceill incorrect in non-default rounding modes
|
||
[19593] math: [ldbl-128ibm] truncl incorrect in non-default rounding modes
|
||
[19594] math: [ldbl-128ibm] roundl incorrect in non-default rounding modes
|
||
[19595] math: [ldbl-128ibm] fmodl incorrect for results in subnormal
|
||
double range
|
||
[19602] math: [ldbl-128ibm] fmodl handling of equal arguments with low
|
||
part zero incorrect
|
||
[19603] math: [ldbl-128ibm] remainderl, remquol incorrect sign handling in
|
||
equality tests
|
||
[19610] dynamic-link: ldconfig -X removes stale symbolic links
|
||
[19613] libc: s390x (64 bit) macro expansion WCOREDUMP and others
|
||
[19633] locale: strfmon_l applies global locale to number formatting
|
||
[19642] network: Memory leak in getnameinfo
|
||
[19648] libc: test-skeleton.c: Do not set RLIMIT_DATA
|
||
[19653] libc: Potential for NULL pointer dereference (CWE-476) in
|
||
glibc-2.22
|
||
[19654] math: [x86_64] Need testcase for BZ #19590 fix
|
||
[19671] localedata: Missing Sanity Check for malloc() in 'tst-fmon.c' &
|
||
'tst-numeric.c'
|
||
[19674] math: [ldbl-128ibm] powl incorrect overflow handling
|
||
[19677] math: [ldbl-128ibm] remainderl equality test incorrect for zero
|
||
low part
|
||
[19678] math: [ldbl-128ibm] nextafterl, nexttowardl incorrect sign of zero
|
||
result
|
||
[19679] dynamic-link: gcc-4.9.3 C++ exception handling broken due to
|
||
unaligned stack
|
||
[19726] locale: Converting UCS4LE to INTERNAL with iconv() does not update
|
||
pointers and lengths in error-case.
|
||
[19727] locale: Converting from/to UTF-xx with iconv() does not always
|
||
report errors on UTF-16 surrogates values.
|
||
[19755] nscd: nscd assertion failure in gc
|
||
[19758] dynamic-link: Typo in EXTRA_LD_ENVVARS for x86-64
|
||
[19759] libc: mempcpy shouldn't be inlined
|
||
[19762] dynamic-link: HAS_CPU_FEATURE/HAS_ARCH_FEATURE are easy to misuse
|
||
[19765] libc: s390 needs an optimized mempcpy
|
||
[19779] glob: glob: buffer overflow with GLOB_ALTDIRFUNC due to incorrect
|
||
NAME_MAX limit assumption (CVE-2016-1234)
|
||
[19783] build: benchtests don't support --enable-hardcoded-path-in-tests
|
||
[19787] network: Missing and incorrect truncation checks in getnameinfo
|
||
[19790] math: [ldbl-128ibm] nearbyintl incorrect in non-default rounding
|
||
modes
|
||
[19791] network: Assertion failure in res_query.c with un-connectable name
|
||
server addresses
|
||
[19792] libc: MIPS: backtrace yields infinite backtrace with makecontext
|
||
[19822] math: libm.so install clobbers old version
|
||
[19825] network: resolv: send_vc can return uninitialized data in second
|
||
response to getaddrinfo
|
||
[19830] network: nss_dns: should check RDATA length against buffer length
|
||
[19831] network: nss_dns: getaddrinfo returns uninitialized data when
|
||
confronted with A/AAAA records of invalid size
|
||
[19837] nss: nss_db: No retries for some long lines with a larger buffer
|
||
[19848] math: powl(10,n) for n=-4,-5,-6,-7 is off by more than 1 ULP
|
||
[19853] stdio: Printing IBM long double in decimal with high precision is
|
||
sometimes incorrect
|
||
[19860] build: x86_64: compile errors for tst-audit10 and tst-auditmod10b
|
||
[19861] nptl: libpthread IFUNC resolver for fork can lead to crash
|
||
[19862] network: resolv, nss_dns: Remove remaining logging of unexpected
|
||
record types
|
||
[19865] network: Assertion failure or memory leak in
|
||
_nss_dns_getcanonname_r
|
||
[19868] network: nss_dns: netent code does not skip over non-PTR records
|
||
[19879] network: nss_dns: Stack overflow in getnetbyname implementation
|
||
(CVE-2016-3075)
|
||
[19881] string: Improve x86-64 memset
|
||
[19907] string: Incorrect memcpy tests
|
||
[19916] dynamic-link: S390: fprs/vrs are not saved/restored while
|
||
resolving symbols
|
||
[19925] libc: termios.h XCASE namespace
|
||
[19928] string: memmove-vec-unaligned-erms.S is slow with large data size
|
||
[19929] libc: limits.h NL_NMAX namespace
|
||
[19931] stdio: Memory leak in vfprintf
|
||
[19957] libc: clone(CLONE_VM) access invalid parent memory
|
||
[19963] localedata: en_IL: New locale
|
||
[19989] stdio: stdio.h cuserid namespace
|
||
[19994] network: getaddrinfo does not restore RES_USE_INET6 flag in
|
||
gethosts
|
||
[19996] locale: langinfo.h nl_langinfo_l namespace
|
||
[20005] stdio: fflush on a file opened with fmemopen resets position to 0
|
||
[20010] network: getaddrinfo: Stack overflow in hostent translation
|
||
(CVE-2016-3706)
|
||
[20012] stdio: libio: fmemopen append mode failure
|
||
[20014] stdio: stdio.h namespace for pre-threads POSIX
|
||
[20017] network: resolv: Use gmtime_r instead of gmtime in p_secstodate
|
||
[20023] libc: fcntl.h timespec namespace
|
||
[20024] math: [x86_64] vectorized sincos trashes the stack
|
||
[20031] network: nss_hesiod: Heap overflow in get_txt_records
|
||
[20041] time: sys/time.h timespec namespace
|
||
[20043] libc: unistd.h missing cuserid for UNIX98 and before
|
||
[20044] libc: unistd.h missing pthread_atfork for UNIX98
|
||
[20051] libc: ttyslot in wrong header under wrong conditions
|
||
[20054] libc: gethostname not declared for XPG4
|
||
[20055] libc: termios.h missing tcgetsid for XPG4
|
||
[20072] dynamic-link: x86 init_cpu_features is called twice in static
|
||
executable
|
||
[20073] libc: sys/stat.h fchmod namespace
|
||
[20074] libc: stdlib.h rand_r namespace
|
||
[20076] libc: sys/stat.h missing S_IFSOCK, S_ISSOCK for XPG4
|
||
[20094] libc: stdlib.h should not declare grantpt, ptsname, unlockpt for
|
||
XPG3
|
||
[20111] libc: struct sockaddr_storage cannot be aggregate-copied
|
||
[20112] network: sunrpc: stack (frame) overflow in Sun RPC clntudp_call
|
||
(CVE-2016-4429)
|
||
[20115] string: Extra alignment in memset-vec-unaligned-erms.S
|
||
[20119] libc: Wrong mask for processors level type from CPUID
|
||
[20139] dynamic-link: Upper part of zmm is zeroed if Glibc is built with
|
||
AS not supporting AVX512
|
||
[20151] math: [ldbl-128/ldbl-128ibm] j0l, j1l, y0l, y1l return sNaN for
|
||
sNaN argument
|
||
[20153] math: [ldbl-128ibm] sqrtl (sNaN) returns sNaN
|
||
[20156] math: [ldbl-128ibm] ceill, rintl etc. return sNaN for sNaN
|
||
argument
|
||
[20157] math: [powerpc] fabsl (sNaN) wrongly raises "invalid"
|
||
[20160] math: [powerpc] ceil, rint etc. return sNaN for sNaN input
|
||
[20178] libc: posix_spawn{p} should not call exit
|
||
[20191] stdio: libio: vtables hardening
|
||
[20195] string: FMA4 detection requires CPUID execution with register
|
||
eax=0x80000001
|
||
[20198] libc: quick_exit incorrectly destroys C++11 thread objects.
|
||
[20205] math: [i386/x86_64] nextafterl incorrect incrementing negative
|
||
subnormals
|
||
[20212] math: acos (sNaN) returns sNaN
|
||
[20213] math: asin (sNaN) returns sNaN
|
||
[20214] network: Linux header sync with linux/in6.h and ipv6.h again.
|
||
[20218] math: [i386] asinhl (sNaN) returns sNaN
|
||
[20219] math: [i386] atanhl (sNaN) returns sNaN
|
||
[20222] stdio: fopencookie: Mangle function pointers
|
||
[20224] math: [i386] cbrtl (sNaN) returns sNaN
|
||
[20225] math: ldexp, scalbn, scalbln return sNaN for sNaN input
|
||
[20226] math: [i386/x86_64] expl, exp10l, expm1l return sNaN for sNaN
|
||
input
|
||
[20227] math: [i386/x86_64] logl (sNaN) returns sNaN
|
||
[20228] math: [i386/x86_64] log10l (sNaN) returns sNaN
|
||
[20229] math: [i386/x86_64] log1pl (sNaN) returns sNaN
|
||
[20232] math: [ldbl-128] expm1l (sNaN) returns sNaN
|
||
[20233] math: [ldbl-128ibm] expm1l (sNaN) returns sNaN
|
||
[20234] math: [ldbl-128ibm] log1pl (sNaN) returns sNaN
|
||
[20235] math: [i386/x86_64] log2l (sNaN) returns sNaN
|
||
[20237] nss: nss_db: get*ent segfaults without preceding set*ent
|
||
[20240] math: modf (sNaN) returns sNaN
|
||
[20248] libc: debug/tst-longjump_chk2 calls printf from a signal handler
|
||
[20250] math: frexp (sNaN) returns sNaN
|
||
[20252] math: atan2 (sNaN, qNaN) fails to raise "invalid"
|
||
[20255] math: [i386] fdim, fdimf return with excess range and precision /
|
||
double rounding
|
||
[20256] math: [i386/x86_64] fdiml returns sNaN for sNaN input
|
||
[20260] string: ../sysdeps/x86/bits/string.h:1092:3: error: array
|
||
subscript is below array bounds [-Werror=array-bounds]
|
||
[20262] nis: _nss_nis_initgroups_dyn always returns NSS_STATUS_NOTFOUND
|
||
[20263] nptl: robust mutex deadlocks if other thread requests timedlock
|
||
(Only arm/linux)
|
||
[20277] libc: $dp is not initialized correctly in sysdeps/hppa/start.S
|
||
[20284] malloc: malloc: Corrupt arena avoidance causes unnecessary mmap
|
||
fallbacks
|
||
[20296] math: [i386/x86_64] scalbl returns sNaN for sNaN input, missing
|
||
"invalid" exceptions
|
||
[20314] nptl: make[4]: *** [/usr/include/stdlib.h] Error 1
|
||
[20316] localedata: id_ID: Februari instead of Pebruari
|
||
[20327] string: POWER8 strcasecmp returns incorrect result
|
||
[20347] math: Failure: Test: j0_downward (0xap+0)
|
||
[20348] libc: FAIL: misc/tst-preadvwritev64
|
||
[20349] libc: 64-bit value is passed differently in p{readv,writev}{64}
|
||
[20350] libc: There is no test for p{read,write}64
|
||
[20357] math: Incorrect cos result for 1.5174239687223976
|
||
[20384] build: Don't run libmvec-sincos-avx* tests on non avx machines
|
||
|
||
Version 2.23
|
||
|
||
* Unicode 8.0.0 Support: Character encoding, character type info, and
|
||
transliteration tables are all updated to Unicode 8.0.0, using new
|
||
and/or improved generator scripts contributed by Mike FABIAN (Red Hat).
|
||
These updates cause user visible changes, such as the fixes for bugs
|
||
89, 16061, and 18568.
|
||
|
||
* sched_setaffinity, pthread_setaffinity_np no longer attempt to guess the
|
||
kernel-internal CPU set size. This means that requests that change the
|
||
CPU affinity which failed before (for example, an all-ones CPU mask) will
|
||
now succeed. Applications that need to determine the effective CPU
|
||
affinities need to call sched_getaffinity or pthread_getaffinity_np after
|
||
setting it because the kernel can adjust it (and the previous size check
|
||
would not detect this in the majority of cases).
|
||
|
||
* The fts.h header can now be used with -D_FILE_OFFSET_BITS=64. With LFS
|
||
the following new symbols are used: fts64_children, fts64_close,
|
||
fts64_open, fts64_read and fts64_set.
|
||
|
||
* getaddrinfo now detects certain invalid responses on an internal netlink
|
||
socket. If such responses are received, an affected process will
|
||
terminate with an error message of "Unexpected error <number> on netlink
|
||
descriptor <number>" or "Unexpected netlink response of size <number> on
|
||
descriptor <number>". The most likely cause for these errors is a
|
||
multi-threaded application which erroneously closes and reuses the netlink
|
||
file descriptor while it is used by getaddrinfo.
|
||
|
||
* A defect in the malloc implementation, present since glibc 2.15 (2012) or
|
||
glibc 2.10 via --enable-experimental-malloc (2009), could result in the
|
||
unnecessary serialization of memory allocation requests across threads.
|
||
The defect is now corrected. Users should see a substantial increase in
|
||
the concurent throughput of allocation requests for applications which
|
||
trigger this bug. Affected applications typically create and
|
||
destroy threads frequently. (Bug 19048 was reported and analyzed by
|
||
Ericsson.)
|
||
|
||
* There is now a --disable-timezone-tools configure option for disabling the
|
||
building and installing of the timezone related utilities (zic, zdump, and
|
||
tzselect). This is useful for people who build the timezone data and code
|
||
independent of the GNU C Library.
|
||
|
||
* The obsolete header <regexp.h> has been removed. Programs that require
|
||
this header must be updated to use <regex.h> instead.
|
||
|
||
* The obsolete functions bdflush, create_module, get_kernel_syms,
|
||
query_module and uselib are no longer available to newly linked binaries;
|
||
the header <sys/kdaemon.h> has been removed. These functions and header
|
||
were specific to systems using the Linux kernel and could not usefully be
|
||
used with the GNU C Library on systems with version 2.6 or later of the
|
||
Linux kernel.
|
||
|
||
* Optimized string, wcsmbs and memory functions for IBM z13.
|
||
Implemented by Stefan Liebler.
|
||
|
||
* Newly linked programs that define a variable called signgam will no longer
|
||
have it set by the lgamma, lgammaf and lgammal functions. Programs that
|
||
require signgam to be set by those functions must ensure that they use the
|
||
variable provided by the GNU C Library and declared in <math.h>, without
|
||
defining their own copy.
|
||
|
||
* The minimum GCC version that can be used to build this version of the GNU
|
||
C Library is GCC 4.7. Older GCC versions, and non-GNU compilers, can
|
||
still be used to compile programs using the GNU C Library.
|
||
|
||
Security related changes:
|
||
|
||
* An out-of-bounds value in a broken-out struct tm argument to strftime no
|
||
longer causes a crash. Reported by Adam Nielsen. (CVE-2015-8776)
|
||
|
||
* The LD_POINTER_GUARD environment variable can no longer be used to disable
|
||
the pointer guard feature. It is always enabled. Previously,
|
||
LD_POINTER_GUARD could be used to disable security hardening in binaries
|
||
running in privileged AT_SECURE mode. Reported by Hector Marco-Gisbert.
|
||
(CVE-2015-8777)
|
||
|
||
* An integer overflow in hcreate and hcreate_r could lead to an
|
||
out-of-bounds memory access. Reported by Szabolcs Nagy. (CVE-2015-8778)
|
||
|
||
* The catopen function no longer has unbounded stack usage. Reported by
|
||
Max. (CVE-2015-8779)
|
||
|
||
* The nan, nanf and nanl functions no longer have unbounded stack usage
|
||
depending on the length of the string passed as an argument to the
|
||
functions. Reported by Joseph Myers. (CVE-2014-9761)
|
||
|
||
* A stack-based buffer overflow was found in libresolv when invoked from
|
||
libnss_dns, allowing specially crafted DNS responses to seize control
|
||
of execution flow in the DNS client. The buffer overflow occurs in
|
||
the functions send_dg (send datagram) and send_vc (send TCP) for the
|
||
NSS module libnss_dns.so.2 when calling getaddrinfo with AF_UNSPEC
|
||
family. The use of AF_UNSPEC triggers the low-level resolver code to
|
||
send out two parallel queries for A and AAAA. A mismanagement of the
|
||
buffers used for those queries could result in the response of a query
|
||
writing beyond the alloca allocated buffer created by
|
||
_nss_dns_gethostbyname4_r. Buffer management is simplified to remove
|
||
the overflow. Thanks to the Google Security Team and Red Hat for
|
||
reporting the security impact of this issue, and Robert Holiday of
|
||
Ciena for reporting the related bug 18665. (CVE-2015-7547)
|
||
|
||
The following bugs are resolved with this release:
|
||
|
||
[89] localedata: Locales nb_NO and nn_NO should transliterate æøå
|
||
[887] math: Math library function "logb" and "nextafter" inconsistent
|
||
[2542] math: Incorrect return from float gamma (-0X1.FA471547C2FE5P+1)
|
||
[2543] math: Incorrect return from float gamma (-0X1.9260DCP+1)
|
||
[2558] math: Incorrect return from double gamma (-0X1.FA471547C2FE5P+1)
|
||
[2898] libc: [improve] warning: the use of `mktemp' is dangerous, better
|
||
use `mkstemp'
|
||
[4404] localedata: German translation of "Alarm clock" is misleading
|
||
[6799] math: nextafter() and nexttoward() doen't set errno on
|
||
overflow/underflow errors
|
||
[6803] math: scalb(), scalbln(), scalbn() do not set errno on
|
||
overflow/underflow
|
||
[10432] nis: _nss_nis_setnetgrent assertion failure
|
||
[11460] libc: fts has no LFS support
|
||
[12926] network: getaddrinfo()/make_request() may spin forever
|
||
[13065] nptl: Race condition in pthread barriers
|
||
[13690] nptl: pthread_mutex_unlock potentially cause invalid access
|
||
[14341] dynamic-link: Dynamic linker crash when DT_JMPREL and DT_REL{,A}
|
||
are not contiguous
|
||
[14551] math: [ldbl-128ibm] strtold overflow handling for IBM long double
|
||
[14912] libc: Rename non-installed bits/*.h headers
|
||
[15002] libc: Avoid undefined behavior in posix_fallocate overflow check
|
||
[15367] math: Let gcc use __builtin_isinf
|
||
[15384] math: One constant fewer in ieee754/dbl-64/wordsize-64/s_finite.c
|
||
[15421] math: lgamma wrongly sets signgam for ISO C
|
||
[15470] math: [arm] On ARM llrintl() and llroundl() do not raise
|
||
FE_INVALID with argument out of range
|
||
[15491] math: [i386/x86_64] x86 nearbyint implementations wrongly clear
|
||
all exceptions
|
||
[15786] dynamic-link: ifunc resolver functions can smash function
|
||
arguments
|
||
[15918] math: Unnecessary check for equality in hypotf()
|
||
[16061] localedata: Review / update transliteration data
|
||
[16068] math: [i386/x86_64] x86 and x86_64 fesetenv exclude state they
|
||
should include
|
||
[16141] time: strptime %z offset restriction
|
||
[16171] math: drem should be alias of remainder
|
||
[16296] math: fegetround is pure?
|
||
[16347] math: [ldbl-128ibm] ldbl-128/e_lgammal_r.c may not be suitable.
|
||
[16364] libc: sleep may leave SIGCHLD blocked on sync cancellation on
|
||
GNU/Linux
|
||
[16399] math: [mips] lrint / llrint / lround / llround missing exceptions
|
||
[16415] math: Clean up ldbl-128 / ldbl-128ibm expm1l for large positive
|
||
arguments
|
||
[16422] math: [powerpc] math-float, math-double failing llrint tests with
|
||
"Exception "Inexact" set" on ppc32
|
||
[16495] localedata: nl_NL: date_fmt: shuffle year/month around
|
||
[16517] math: Missing underflow exception from tanf/tan/tanl
|
||
[16519] math: Missing underflow exception from sinhf
|
||
[16520] math: Missing underflow exception from tanhf
|
||
[16521] math: Missing underflow exception from exp2
|
||
[16620] math: [ldbl-128ibm] exp10l spurious overflows / bad directed
|
||
rounding results
|
||
[16734] stdio: fopen calls mmap to allocate its buffer
|
||
[16961] math: nan function incorrect handling of bad sequences
|
||
[16962] math: nan function unbounded stack allocation (CVE-2014-9761)
|
||
[16973] localedata: Fix lang_lib/lang_term as per ISO 639-2
|
||
[16985] locale: localedef: confusing error message when opening output
|
||
fails
|
||
[17118] math: ctanh(INFINITY + 2 * I) returns incorrect value
|
||
[17197] locale: Redundant shift character in iconv conversion output at
|
||
block boundary
|
||
[17243] libc: trunk/posix/execl.c:53: va_args problem ?
|
||
[17244] libc: trunk/sysdeps/unix/sysv/linux/semctl.c:116: va_args muxup ?
|
||
[17250] dynamic-link: static linking breaks nss loading
|
||
(getaddrinfo/getpwnam/etc...)
|
||
[17404] libc: atomic_exchange_rel lacking a barrier on MIPS16, GCC before
|
||
4.7?
|
||
[17441] math: isnan() should use __builtin_isnan() in GCC
|
||
[17514] nptl: Assert failure unlocking ERRORCHECK mutex after timedlock
|
||
(related to lock elision)
|
||
[17787] manual: Exponent on page 324 of the PDF ends prematurely
|
||
[17886] time: strptime should be able to parse "Z" as a timezone with %z
|
||
[17887] time: strptime should be able to parse "+01:00" style timezones
|
||
[17905] libc: catopen() Multiple unbounded stack allocations
|
||
(CVE-2015-8779)
|
||
[18084] libc: backtrace (..., 0) dumps core on x86
|
||
[18086] libc: nice() sets errno to 0 on success
|
||
[18240] libc: hcreate, hcreate_r should fail with ENOMEM if element count
|
||
is too large (CVE-2015-8778)
|
||
[18251] dynamic-link: SONAME missing when audit modules provides path
|
||
[18265] libc: add attributes for wchar string and memory functions
|
||
[18370] math: csqrt missing underflows
|
||
[18421] libc: [hppa] read-only segment has dynamic relocations
|
||
[18472] libc: Obsolete syscall wrappers should be compat symbols
|
||
[18480] libc: hppa glibc miscompilation in sched_setaffinity()
|
||
[18491] localedata: Update tr_TR LC_CTYPE as part of Unicode updates
|
||
[18525] localedata: Remove locale timezone information
|
||
[18560] libc: [powerpc] spurious bits/ipc.h definitions
|
||
[18568] localedata: Update locale data to Unicode 8.0
|
||
[18589] locale: sort-test.sh fails at random
|
||
[18595] math: ctan, ctanh missing underflows
|
||
[18604] libc: assert macro-expands its argument
|
||
[18610] math: S390: fetestexcept() reports any exception if DXC-code
|
||
contains a vector instruction exception.
|
||
[18611] math: j1, jn missing errno setting on underflow
|
||
[18618] localedata: sync Chechen locale definitions with other *_RU
|
||
locales
|
||
[18647] math: powf(-0x1.000002p0, 0x1p30) returns 0 instead of +inf
|
||
[18661] libc: Some x86-64 assembly codes don't align stack to 16 bytes
|
||
[18665] network: In send_dg, the recvfrom function is NOT always using the
|
||
buffer size of a newly created buffer (CVE-2015-7547)
|
||
[18674] libc: [i386] trunk/sysdeps/i386/tst-auditmod3b.c:84: possible
|
||
missing break ?
|
||
[18675] libc: fpathconf(_PC_NAME_MAX) fails against large filesystems for
|
||
32bit processes
|
||
[18681] libc: regexp.h is obsolete and buggy, and should be desupported
|
||
[18699] math: tilegx cproj() for various complex infinities does not yield
|
||
infinity
|
||
[18724] libc: Harden put*ent functions against data injection
|
||
[18743] nptl: PowerPC: findutils testcase fails with --enable-lock-elision
|
||
[18755] build: build errors with -DNDEBUG
|
||
[18757] stdio: fmemopen fails to set errno on failure
|
||
[18778] dynamic-link: ld.so crashes if failed dlopen causes libpthread to
|
||
be forced unloaded
|
||
[18781] libc: openat64 lacks O_LARGEFILE
|
||
[18787] libc: [hppa] sysdeps/unix/sysv/linux/hppa/bits/atomic.h:71:6:
|
||
error: can’t find a register in class ‘R1_REGS’ while reloading ‘asm’
|
||
[18789] math: [ldbl-128ibm] sinhl inaccurate near 0
|
||
[18790] math: [ldbl-128ibm] tanhl inaccurate
|
||
[18795] libc: stpncpy fortification misses buffer lengths that are
|
||
statically too large
|
||
[18796] build: build fails for --disable-mathvec
|
||
[18803] math: hypot missing underflows
|
||
[18820] stdio: fmemopen may leak memory on failure
|
||
[18823] math: csqrt spurious underflows
|
||
[18824] math: fma spurious underflows
|
||
[18825] math: pow missing underflows
|
||
[18857] math: [ldbl-128ibm] nearbyintl wrongly uses signaling comparisons
|
||
[18868] nptl: pthread_barrier_init typo has in-theory-undefined behavior
|
||
[18870] build: sem_open.c fails to compile with missing symbol
|
||
FUTEX_SHARED
|
||
[18872] stdio: Fix memory leak in printf_positional
|
||
[18873] libc: posix_fallocate overflow check ineffective
|
||
[18875] math: Excess precision leads incorrect libm
|
||
[18877] libc: arm: mmap offset regression
|
||
[18887] libc: memory corruption when using getmntent on blank lines
|
||
[18918] localedata: hu_HU: change time to HH:MM:SS format
|
||
[18921] libc: Regression: extraneous stat() and fstat() performed by
|
||
opendir()
|
||
[18928] dynamic-link: LD_POINTER_GUARD is not ignored for privileged
|
||
binaries (CVE-2015-8777)
|
||
[18951] math: tgamma missing underflows
|
||
[18952] math: [ldbl-128/ldbl-128ibm] lgammal spurious "invalid", incorrect
|
||
signgam
|
||
[18953] localedata: lt_LT: change currency symbol to the euro
|
||
[18956] math: powf inaccuracy
|
||
[18961] math: [i386] exp missing underflows
|
||
[18966] math: [i386] exp10 missing underflows
|
||
[18967] math: math.h XSI POSIX namespace (gamma, isnan, scalb)
|
||
[18969] build: multiple string test failures due to missing locale
|
||
dependencies
|
||
[18970] libc: Reference of pthread_setcancelstate in libc.a
|
||
[18977] math: float / long double Bessel functions not in XSI POSIX
|
||
[18980] math: i386 libm functions return with excess range and precision
|
||
[18981] math: i386 scalb*, ldexp return with excess range and precision
|
||
[18982] stdio: va_list and vprintf
|
||
[18985] time: Passing out of range data to strftime() causes a segfault
|
||
(CVE-2015-8776)
|
||
[19003] math: [x86_64] fma4 version of pow inappropriate contraction
|
||
[19007] libc: FAIL: elf/check-localplt with -z now and binutils 2.26
|
||
[19012] locale: iconv_open leaks memory on error path
|
||
[19016] math: clog, clog10 inaccuracy
|
||
[19018] nptl: Mangle function pointers in tls_dtor_list
|
||
[19032] math: [i386] acosh (-qNaN) spurious "invalid" exception
|
||
[19046] math: ldbl-128 / ldbl-128ibm lgamma bad overflow handling
|
||
[19048] malloc: malloc: arena free list can become cyclic, increasing
|
||
contention
|
||
[19049] math: [powerpc] erfc incorrect zero sign
|
||
[19050] math: [powerpc] log* incorrect zero sign
|
||
[19058] math: [x86_64] Link fail with -fopenmp and -flto
|
||
[19059] math: nexttoward overflow incorrect in non-default rounding modes
|
||
[19071] math: ldbl-96 lroundl incorrect just below powers of 2
|
||
[19074] network: Data race in _res_hconf_reorder_addrs
|
||
[19076] math: [ldbl-128ibm] log1pl (-1) wrong sign of infinity
|
||
[19077] math: [ldbl-128ibm] logl (1) incorrect sign of zero result
|
||
[19078] math: [ldbl-128ibm] expl overflow incorrect in non-default
|
||
rounding modes
|
||
[19079] math: dbl-64/wordsize-64 lround based on llround incorrect for
|
||
ILP32
|
||
[19085] math: ldbl-128 lrintl, lroundl missing exceptions for 32-bit long
|
||
[19086] manual: posix_fallocate64 documented argument order is wrong.
|
||
[19088] math: lround, llround missing exceptions close to overflow
|
||
threshold
|
||
[19094] math: lrint, llrint missing exceptions close to overflow threshold
|
||
[19095] math: dbl-64 lrint incorrect for 64-bit long
|
||
[19122] dynamic-link: Unnecessary PLT relocations in librtld.os
|
||
[19124] dynamic-link: ld.so failed to build with older assmebler
|
||
[19125] math: [powerpc32] llroundf, llround incorrect exceptions
|
||
[19129] dynamic-link: [arm] Concurrent lazy TLSDESC resolution can crash
|
||
[19134] math: [powerpc32] lround, lroundf spurious exceptions
|
||
[19137] libc: i386/epoll_pwait.S doesn't support cancellation
|
||
[19143] nptl: Remove CPU set size checking from sched_setaffinity,
|
||
pthread_setaffinity_np
|
||
[19156] math: [ldbl-128] j0l spurious underflows
|
||
[19164] nptl: tst-getcpu fails with many possible CPUs
|
||
[19168] math: math/test-ildoubl and math/test-ldouble failure
|
||
[19174] nptl: PowerPC: TLE enabled pthread mutex performs poorly.
|
||
[19178] dynamic-link: ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA confuses
|
||
prelink
|
||
[19181] math: [i386/x86_64] fesetenv (FE_DFL_ENV), fesetenv
|
||
(FE_NOMASK_ENV) do not clear SSE exceptions
|
||
[19182] malloc: malloc deadlock between ptmalloc_lock_all and
|
||
_int_new_arena/reused_arena
|
||
[19189] math: [ldbl-128] log1pl (-qNaN) spurious "invalid" exception
|
||
[19201] math: dbl-64 remainder incorrect sign of zero result
|
||
[19205] math: bits/math-finite.h conditions do not match math.h and
|
||
bits/mathcalls.h
|
||
[19209] math: bits/math-finite.h wrongly maps ldexp to scalbn
|
||
[19211] math: lgamma functions do not set signgam for -ffinite-math-only
|
||
for C99-based standards
|
||
[19212] libc: features.h not -Wundef clean
|
||
[19213] math: [i386/x86_64] log* (1) incorrect zero sign for -ffinite-
|
||
math-only
|
||
[19214] libc: Family and model identification for AMD CPU's are incorrect.
|
||
[19219] libc: GLIBC build fails for ia64 with missing __nearbyintl
|
||
[19228] math: [powerpc] nearbyint wrongly clears "inexact", leaves traps
|
||
disabled
|
||
[19235] math: [powerpc64] lround, lroundf, llround, llroundf spurious
|
||
"inexact" exceptions
|
||
[19238] math: [powerpc] round, roundf spurious "inexact" for integer
|
||
arguments
|
||
[19242] libc: strtol incorrect in Turkish locales
|
||
[19243] malloc: reused_arena can pick an arena on the free list, leading
|
||
to an assertion failure and reference count corruption
|
||
[19253] time: tzset() ineffective when temporary TZ did not include DST
|
||
rules
|
||
[19266] math: strtod ("NAN(I)") incorrect in Turkish locales
|
||
[19270] math: [hppa] Shared libm missing __isnanl
|
||
[19285] libc: [hppa] sysdeps/unix/sysv/linux/hppa/bits/mman.h: missing
|
||
MAP_HUGETLB and MAP_STACK defines
|
||
[19313] nptl: Wrong __cpu_mask for x32
|
||
[19347] libc: grantpt: try to force a specific gid even without pt_chown
|
||
[19349] math: [ldbl-128ibm] tanhl inaccurate for small arguments
|
||
[19350] math: [ldbl-128ibm] sinhl spurious overflows
|
||
[19351] math: [ldbl-128ibm] logl inaccurate near 1
|
||
[19363] time: x32: times() return value wrongly truncates/sign extends
|
||
from 32bit
|
||
[19367] dynamic-link: Improve branch prediction on Silvermont
|
||
[19369] network: Default domain name not reset by res_ninit when "search"
|
||
/ "domain" entry is removed from resolv.conf
|
||
[19375] math: powerpc: incorrect results for POWER7 logb with negative
|
||
subnormals
|
||
[19385] localedata: bg_BG: time separator should be colon, not comma
|
||
[19408] libc: linux personality syscall wrapper may erroneously return an
|
||
error on 32-bit architectures
|
||
[19415] libc: dladdr returns wrong names on hppa
|
||
[19432] libc: iconv rejects redundant escape sequences in IBM900, IBM903,
|
||
IBM905, IBM907, and IBM909
|
||
[19439] math: Unix98 isinf and isnan functions conflict with C++11
|
||
[19443] build: build failures with -DDEBUG
|
||
[19451] build: Make check fails on test-double-vlen2
|
||
[19462] libc: Glibc failed to build with -Os
|
||
[19465] math: Wrong code with -Os
|
||
[19466] time: time/tst-mktime2.c is compiled into an infinite loop with
|
||
-Os
|
||
[19467] string: Fast_Unaligned_Load needs to be enabled for Excavator core
|
||
CPU's.
|
||
[19475] libc: Glibc 2.22 doesn't build on sparc [PATCH]
|
||
[19486] math: S390: Math tests fail with "Exception Inexact set".
|
||
[19529] libc: [ARM]: FAIL: stdlib/tst-makecontext
|
||
[19550] libc: [mips] mmap negative offset handling inconsistent with other
|
||
architectures
|
||
[19590] math: Fail to build shared objects that use libmvec.so functions.
|
||
|
||
Version 2.22
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
438, 2981, 4719, 6544, 6792, 11216, 12836, 13028, 13064, 13151, 13152,
|
||
14094, 14113, 14292, 14841, 14906, 14958, 15319, 15467, 15790, 15969,
|
||
16159, 16339, 16350, 16351, 16352, 16353, 16361, 16512, 16526, 16538,
|
||
16559, 16560, 16704, 16783, 16850, 17053, 17090, 17195, 17269, 17293,
|
||
17322, 17403, 17475, 17523, 17542, 17569, 17581, 17588, 17596, 17620,
|
||
17621, 17628, 17631, 17692, 17711, 17715, 17776, 17779, 17792, 17833,
|
||
17836, 17841, 17912, 17916, 17930, 17932, 17944, 17949, 17964, 17965,
|
||
17967, 17969, 17977, 17978, 17987, 17991, 17996, 17998, 17999, 18007,
|
||
18019, 18020, 18029, 18030, 18032, 18034, 18036, 18038, 18039, 18042,
|
||
18043, 18046, 18047, 18049, 18068, 18078, 18080, 18093, 18100, 18104,
|
||
18110, 18111, 18116, 18125, 18128, 18134, 18138, 18185, 18196, 18197,
|
||
18206, 18210, 18211, 18217, 18219, 18220, 18221, 18234, 18244, 18245,
|
||
18247, 18287, 18319, 18324, 18333, 18346, 18371, 18383, 18397, 18400,
|
||
18409, 18410, 18412, 18418, 18422, 18434, 18444, 18457, 18468, 18469,
|
||
18470, 18479, 18483, 18495, 18496, 18497, 18498, 18502, 18507, 18508,
|
||
18512, 18513, 18519, 18520, 18522, 18527, 18528, 18529, 18530, 18532,
|
||
18533, 18534, 18536, 18539, 18540, 18542, 18544, 18545, 18546, 18547,
|
||
18549, 18553, 18557, 18558, 18569, 18583, 18585, 18586, 18592, 18593,
|
||
18594, 18602, 18612, 18613, 18619, 18633, 18635, 18641, 18643, 18648,
|
||
18657, 18676, 18694, 18696, 18887.
|
||
|
||
* Cache information can be queried via sysconf() function on s390 e.g. with
|
||
_SC_LEVEL1_ICACHE_SIZE as argument.
|
||
|
||
* A buffer overflow in gethostbyname_r and related functions performing DNS
|
||
requests has been fixed. If the NSS functions were called with a
|
||
misaligned buffer, the buffer length change due to pointer alignment was
|
||
not taken into account. This could result in application crashes or,
|
||
potentially arbitrary code execution, using crafted, but syntactically
|
||
valid DNS responses. (CVE-2015-1781)
|
||
|
||
* The time zone file parser has been made more robust against crafted time
|
||
zone files, avoiding heap buffer overflows related to the processing of
|
||
the tzh_ttisstdcnt and tzh_ttisgmtcnt fields, and a stack overflow due to
|
||
large time zone data files. Overly long time zone specifiers in the TZ
|
||
variable no longer result in stack overflows and crashes.
|
||
|
||
* A powerpc and powerpc64 optimization for TLS, similar to TLS descriptors
|
||
for LD and GD on x86 and x86-64, has been implemented. You will need
|
||
binutils-2.24 or later to enable this optimization.
|
||
|
||
* Character encoding and ctype tables were updated to Unicode 7.0.0, using
|
||
new generator scripts contributed by Pravin Satpute and Mike FABIAN (Red
|
||
Hat). These updates cause user visible changes, such as the fix for bug
|
||
17998.
|
||
|
||
* CVE-2014-8121 The NSS backends shared internal state between the getXXent
|
||
and getXXbyYY NSS calls for the same database, causing a denial-of-service
|
||
condition in some applications.
|
||
|
||
* Added vector math library named libmvec with the following vectorized x86_64
|
||
implementations: cos, cosf, sin, sinf, sincos, sincosf, log, logf, exp, expf,
|
||
pow, powf.
|
||
The library can be disabled with --disable-mathvec. Use of the functions is
|
||
enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0.
|
||
Shared library libmvec.so is linked in as needed when using -lm (no need to
|
||
specify -lmvec explicitly for not static builds).
|
||
Visit <https://sourceware.org/glibc/wiki/libmvec> for detailed information.
|
||
|
||
* A new fmemopen implementation has been added with the goal of POSIX
|
||
compliance. The new implementation fixes the following long-standing
|
||
issues: BZ#6544, BZ#11216, BZ#12836, BZ#13151, BZ#13152, and BZ#14292. The
|
||
old implementation is still present for use be by existing binaries.
|
||
|
||
* The 32-bit sparc sigaction ABI was inadvertently broken in the 2.20 and 2.21
|
||
releases. It has been fixed to match 2.19 and older, but binaries built
|
||
against 2.20 and 2.21 might need to be recompiled. See BZ#18694.
|
||
|
||
* Port to Native Client running on ARMv7-A (--host=arm-nacl).
|
||
Contributed by Roland McGrath (Google).
|
||
|
||
* The header <regexp.h> is deprecated, and will be removed in a future
|
||
release. Use of this header will trigger a deprecation warning.
|
||
Application developers should update their code to use <regex.h> instead.
|
||
|
||
This header was formerly part of SUS, but was deprecated in 1994 and
|
||
removed from the standard in 2001. Also, the glibc implementation
|
||
leaks memory. See BZ#18681 for more details.
|
||
|
||
Version 2.21
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
6652, 10672, 12674, 12847, 12926, 13862, 14132, 14138, 14171, 14498,
|
||
15215, 15378, 15884, 16009, 16418, 16191, 16469, 16576, 16617, 16618,
|
||
16619, 16657, 16740, 16857, 17192, 17266, 17273, 17344, 17363, 17370,
|
||
17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508, 17522, 17555,
|
||
17570, 17571, 17572, 17573, 17574, 17582, 17583, 17584, 17585, 17589,
|
||
17594, 17601, 17608, 17616, 17625, 17630, 17633, 17634, 17635, 17647,
|
||
17653, 17657, 17658, 17664, 17665, 17668, 17682, 17702, 17717, 17719,
|
||
17722, 17723, 17724, 17725, 17732, 17733, 17744, 17745, 17746, 17747,
|
||
17748, 17775, 17777, 17780, 17781, 17782, 17791, 17793, 17796, 17797,
|
||
17801, 17803, 17806, 17834, 17844, 17848, 17868, 17869, 17870, 17885,
|
||
17892.
|
||
|
||
* CVE-2015-1472 CVE-2015-1473 Under certain conditions wscanf can allocate
|
||
too little memory for the to-be-scanned arguments and overflow the
|
||
allocated buffer. The implementation now correctly computes the required
|
||
buffer size when using malloc, and switches to malloc from alloca as
|
||
intended.
|
||
|
||
* A new semaphore algorithm has been implemented in generic C code for all
|
||
machines. Previous custom assembly implementations of semaphore were
|
||
difficult to reason about or ensure that they were safe. The new version
|
||
of semaphore supports machines with 64-bit or 32-bit atomic operations.
|
||
The new semaphore algorithm is used by sem_init, sem_open, sem_post,
|
||
sem_wait, sem_timedwait, sem_trywait, and sem_getvalue.
|
||
|
||
* Port to Altera Nios II has been contributed by Mentor Graphics.
|
||
|
||
* Optimized strcpy, stpcpy, strncpy, stpncpy, strcmp, and strncmp
|
||
implementations for powerpc64/powerpc64le.
|
||
Implemented by Adhemerval Zanella (IBM).
|
||
|
||
* Added support for TSX lock elision of pthread mutexes on powerpc32, powerpc64
|
||
and powerpc64le. This may improve lock scaling of existing programs on
|
||
HTM capable systems. The lock elision code is only enabled with
|
||
--enable-lock-elision=yes. Also, the TSX lock elision implementation for
|
||
powerpc will issue a transaction abort on every syscall to avoid side
|
||
effects being visible outside transactions.
|
||
|
||
* Optimized strcpy, stpcpy, strchrnul and strrchr implementations for
|
||
AArch64. Contributed by ARM Ltd.
|
||
|
||
* i386 memcpy functions optimized with SSE2 unaligned load/store.
|
||
|
||
* CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
|
||
under certain input conditions resulting in the execution of a shell for
|
||
command substitution when the application did not request it. The
|
||
implementation now checks WRDE_NOCMD immediately before executing the
|
||
shell and returns the error WRDE_CMDSUB as expected.
|
||
|
||
* CVE-2012-3406 printf-style functions could run into a stack overflow when
|
||
processing format strings with a large number of format specifiers.
|
||
|
||
* CVE-2014-9402 The nss_dns implementation of getnetbyname could run into an
|
||
infinite loop if the DNS response contained a PTR record of an unexpected
|
||
format.
|
||
|
||
* The minimum GCC version that can be used to build this version of the GNU
|
||
C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can
|
||
still be used to compile programs using the GNU C Library.
|
||
|
||
* The GNU C Library is now built with -Werror by default. This can be
|
||
disabled by configuring with --disable-werror.
|
||
|
||
* New locales: tu_IN, bh_IN, raj_IN, ce_RU.
|
||
|
||
* The obsolete sigvec function has been removed. This was the original
|
||
4.2BSD interface that inspired the POSIX.1 sigaction interface, which
|
||
programs have been using instead for about 25 years. Of course, ABI
|
||
compatibility for old binaries using sigvec remains intact.
|
||
|
||
* Merged gettext 0.19.3 into the intl subdirectory. This fixes building
|
||
with newer versions of bison.
|
||
|
||
* Support for MIPS o32 FPXX, FP64A and FP64 ABI Extensions.
|
||
The original MIPS o32 hard-float ABI requires an FPU where double-precision
|
||
registers overlay two consecutive single-precision registers. MIPS32R2
|
||
introduced a new FPU mode (FR=1) where double-precision registers extend the
|
||
corresponding single-precision registers which is incompatible with the
|
||
o32 hard-float ABI. The MIPS SIMD ASE and the MIPSR6 architecture both
|
||
require the use of FR=1 making a transition necessary. New o32 ABI
|
||
extensions enable users to migrate over time from the original o32 ABI
|
||
through to the updated o32 FP64 ABI. To achieve this the dynamic linker now
|
||
tracks the ABI of any loaded object and verifies that new objects are
|
||
compatible. Mode transitions will also be requested as required and
|
||
unsupportable objects will be rejected. The ABI checks include both soft and
|
||
hard float ABIs for o32, n32 and n64.
|
||
|
||
GCC 5 with GNU binutils 2.25 onwards:
|
||
It is strongly recommended that all o32 system libraries are built using the
|
||
new o32 FPXX ABI (-mfpxx) to facilitate the transition as this is compatible
|
||
with the original and all new o32 ABI extensions. Configure a MIPS GCC
|
||
compiler using --with-fp-32=xx to set this by default.
|
||
|
||
Version 2.20
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
6804, 9894, 11505, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347,
|
||
15514, 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198,
|
||
16275, 16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447,
|
||
16516, 16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600,
|
||
16609, 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639,
|
||
16642, 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689,
|
||
16695, 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739,
|
||
16740, 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791,
|
||
16796, 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849,
|
||
16854, 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912,
|
||
16915, 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958,
|
||
16965, 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022,
|
||
17031, 17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078,
|
||
17079, 17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150,
|
||
17153, 17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354.
|
||
|
||
* Reverted change of ABI data structures for s390 and s390x:
|
||
On s390 and s390x the size of struct ucontext and jmp_buf was increased in
|
||
2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions
|
||
of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp
|
||
are preserved pointing straight to the same implementation as the old ones.
|
||
Given that, new callers will simply provide a too-big buffer to these
|
||
functions. Any applications/libraries out there that embed jmp_buf or
|
||
ucontext_t in an ABI-relevant data structure that have already been rebuilt
|
||
against 2.19 headers will have to rebuilt again. This is necessary in any
|
||
case to revert the breakage in their ABI caused by the glibc change.
|
||
|
||
* Support for file description locks is added to systems running the
|
||
Linux kernel. The standard file locking interfaces are extended to
|
||
operate on file descriptions, not file descriptors, via the use of
|
||
F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks
|
||
are associated with an open file instead of a process.
|
||
|
||
* Optimized strchr implementation for AArch64. Contributed by ARM Ltd.
|
||
|
||
* The minimum Linux kernel version that this version of the GNU C Library
|
||
can be used with is 2.6.32.
|
||
|
||
* Running the testsuite no longer terminates as soon as a test fails.
|
||
Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
|
||
with PASS or FAIL lines for individual tests. A summary of the results is
|
||
printed, including a list of failing lists, and "make check" exits with
|
||
error status if there were any unexpected failures. "make check
|
||
stop-on-test-failure=y" may be used to keep the old behavior.
|
||
|
||
* The am33 port, which had not worked for several years, has been removed
|
||
from ports.
|
||
|
||
* The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
|
||
supported; they now act the same as _DEFAULT_SOURCE (but generate a
|
||
warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
|
||
conflicted with POSIX (support for which was removed in 2.19), the
|
||
interfaces those macros enabled remain available when compiling with
|
||
_GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
|
||
test macros defined.
|
||
|
||
* Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd.
|
||
|
||
* Added support for TX lock elision of pthread mutexes on s390 and s390x.
|
||
This may improve lock scaling of existing programs on TX capable systems.
|
||
The lock elision code is only built with --enable-lock-elision=yes and
|
||
then requires a GCC version supporting the TX builtins. With lock elision
|
||
default mutexes are elided via __builtin_tbegin, if the cpu supports
|
||
transactions. By default lock elision is not enabled and the elision code
|
||
is not built.
|
||
|
||
* CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not
|
||
copy the path argument. This allowed programs to cause posix_spawn to
|
||
deference a dangling pointer, or use an unexpected pathname argument if
|
||
the string was modified after the posix_spawn_file_actions_addopen
|
||
invocation.
|
||
|
||
* All supported architectures now use the main glibc sysdeps directory
|
||
instead of some being in a separate "ports" directory (which was
|
||
distributed separately before glibc 2.17).
|
||
|
||
* The NPTL implementation of POSIX pthreads is no longer an "add-on".
|
||
On configurations that support it (all Linux configurations), it's now
|
||
used regardless of the --enable-add-ons switch to configure. It is no
|
||
longer possible to build such configurations without pthreads support.
|
||
|
||
* Locale names, including those obtained from environment variables (LANG
|
||
and the LC_* variables), are more tightly checked for proper syntax.
|
||
setlocale will now fail (with EINVAL) for locale names that are overly
|
||
long, contain slashes without starting with a slash, or contain ".." path
|
||
components. (CVE-2014-0475) Previously, some valid locale names were
|
||
silently replaced with the "C" locale when running in AT_SECURE mode
|
||
(e.g., in a SUID program). This is no longer necessary because of the
|
||
additional checks.
|
||
|
||
* On x86-64, the dynamic linker's lazy-binding support is now compatible
|
||
with application code using Intel MPX instructions. (With all previous
|
||
versions, the MPX register state could be clobbered when making calls
|
||
into or out of a shared library.) Note that while the new dynamic
|
||
linker is compatible with all known x86 hardware whether or not it
|
||
supports Intel MPX, some x86 instruction-set emulators might fail to
|
||
handle the new instruction encodings. This is known to affect Valgrind
|
||
versions up through 3.9 (but will be fixed in the forthcoming 3.10
|
||
release), and might affect other tools that do instruction emulation.
|
||
|
||
* Support for loadable gconv transliteration modules has been removed.
|
||
The support for transliteration modules has been non-functional for
|
||
over a decade, and the removal is prompted by security defects. The
|
||
normal gconv conversion modules are still supported. Transliteration
|
||
with //TRANSLIT is still possible, and the //IGNORE specifier
|
||
continues to be supported. (CVE-2014-5119)
|
||
|
||
* Decoding a crafted input sequence in the character sets IBM933, IBM935,
|
||
IBM937, IBM939, IBM1364 could result in an out-of-bounds array read,
|
||
resulting a denial-of-service security vulnerability in applications which
|
||
use functions related to iconv. (CVE-2014-6040)
|
||
|
||
Version 2.19
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
|
||
7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
|
||
12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
|
||
14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
|
||
15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
|
||
15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
|
||
15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
|
||
15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
|
||
15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
|
||
15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
|
||
15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
|
||
15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
|
||
16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
|
||
16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
|
||
16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
|
||
16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
|
||
16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
|
||
16431, 16453, 16474, 16506, 16510, 16529
|
||
|
||
* Slovenian translations for glibc messages have been contributed by the
|
||
Translation Project's Slovenian team of translators.
|
||
|
||
* The public headers no longer use __unused nor __block. This change is to
|
||
support compiling programs that are derived from BSD sources and use
|
||
__unused internally, and to support compiling with Clang's -fblock
|
||
extension which uses __block.
|
||
|
||
* CVE-2012-4412 The strcoll implementation caches indices and rules for
|
||
large collation sequences to optimize multiple passes. This cache
|
||
computation may overflow for large collation sequences and may cause a
|
||
stack or buffer overflow. This is now fixed to use a slower algorithm
|
||
which does not use a cache if there is an integer overflow.
|
||
|
||
* CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
|
||
rules for large collation sequences to optimize multiple passes and falls
|
||
back to alloca if malloc fails, resulting in a possible stack overflow.
|
||
The implementation now falls back to an uncached collation sequence lookup
|
||
if malloc fails.
|
||
|
||
* CVE-2013-4788 The pointer guard used for pointer mangling was not
|
||
initialized for static applications resulting in the security feature
|
||
being disabled. The pointer guard is now correctly initialized to a
|
||
random value for static applications. Existing static applications need
|
||
to be recompiled to take advantage of the fix (bug 15754).
|
||
|
||
* CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
|
||
to the d_name member of struct dirent, or omit the terminating NUL
|
||
character. (Bugzilla #14699).
|
||
|
||
* CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
|
||
aligned_alloc functions could allocate too few bytes or corrupt the
|
||
heap when passed very large allocation size values (Bugzilla #15855,
|
||
#15856, #15857).
|
||
|
||
* CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
|
||
for AF_INET6 has been fixed (Bugzilla #16072).
|
||
|
||
* New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
|
||
pap_CW, quz_PE, the_NP.
|
||
|
||
* Substantially revised locales: gd_GB, ht_HT
|
||
|
||
* The LC_ADDRESS field was updated to support country_car for almost all
|
||
supported locales.
|
||
|
||
* ISO 1427 definitions were updated.
|
||
|
||
* ISO 3166 definitions were updated.
|
||
|
||
* The localedef utility now supports --big-endian and --little-endian
|
||
command-line options to generate locales for a different system from that
|
||
for which the C library was built.
|
||
|
||
* Binary locale files now only depend on the endianness of the system for
|
||
which they are generated and not on other properties of that system. As a
|
||
consequence, binary files generated with new localedef may be incompatible
|
||
with old versions of the GNU C Library, and binary files generated with
|
||
old localedef may be incompatible with this version of the GNU C Library,
|
||
in the following circumstances:
|
||
|
||
+ Locale files may be incompatible on m68k systems.
|
||
|
||
+ Locale archive files (but not separate files for individual locales) may
|
||
be incompatible on systems where plain "char" is signed.
|
||
|
||
* The configure option --disable-versioning has been removed. Builds with
|
||
--disable-versioning had not worked for several years.
|
||
|
||
* ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
|
||
cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
|
||
|
||
* SystemTap probes for malloc have been introduced.
|
||
|
||
* SystemTap probes for slow multiple precision fallback paths of
|
||
transcendental functions have been introduced.
|
||
|
||
* Support for powerpc64le has been added.
|
||
|
||
* The soft-float powerpc port now supports e500 processors.
|
||
|
||
* Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
|
||
|
||
* A new feature test macro _DEFAULT_SOURCE is available to enable the same
|
||
set of header declarations that are enabled by default, even when other
|
||
feature test macros or compiler options such as -std=c99 would otherwise
|
||
disable some of those declarations.
|
||
|
||
* The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
|
||
conflict with POSIX. The libbsd-compat library (which was a dummy library
|
||
that did nothing) has also been removed.
|
||
|
||
* Preliminary documentation about Multi-Thread, Async-Signal and
|
||
Async-Cancel Safety has been added.
|
||
|
||
* Change of ABI data structures for s390 and s390x:
|
||
On s390 and s390x the size of struct ucontext and jmp_buf was increased to
|
||
allow for future hardware extensions. All library functions that accept or
|
||
return these structures were versioned in order to provide backwards
|
||
compatibility with existing code. However, not all cases can be handled
|
||
with interface versioning. If an application embeds either structure into
|
||
another structure and that structure is passed to another compilation unit
|
||
which expects the newer larger-sized object then any access to the new
|
||
fields will result in undefined behaviour. Similarly any access to fields
|
||
that were moved by the enlarging of the structures will cause undefined
|
||
behaviour. To fix the undefined behaviour all objects that are part of the
|
||
final in-memory image must agree on the size of structures, and this may
|
||
require recompilation.
|
||
|
||
Version 2.18
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
|
||
11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
|
||
14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
|
||
14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14941,
|
||
14952, 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003,
|
||
15006, 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062,
|
||
15078, 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234,
|
||
15283, 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335,
|
||
15336, 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381,
|
||
15394, 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424,
|
||
15426, 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485,
|
||
15488, 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577,
|
||
15583, 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711,
|
||
15755, 15759.
|
||
|
||
* CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
|
||
has been fixed by disabling the use of pt_chown (Bugzilla #15755).
|
||
Distributions can re-enable building and using pt_chown via the new configure
|
||
option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
|
||
considerable security risks and should only be used if the distribution
|
||
understands and accepts the risks.
|
||
|
||
* CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
|
||
#15078).
|
||
|
||
* CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
|
||
fixed (Bugzilla #15330).
|
||
|
||
* Add support for calling C++11 thread_local object destructors on thread
|
||
and program exit. This needs compiler support for offloading C++11
|
||
destructor calls to glibc.
|
||
|
||
* Improved worst case performance of libm functions with double inputs and
|
||
output.
|
||
|
||
* Support for priority inherited mutexes in pthread condition variables on
|
||
non-x86 architectures.
|
||
|
||
* Port to Xilinx MicroBlaze contributed by David Holsgrove.
|
||
|
||
* Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
|
||
|
||
* Optimized string functions for ARM. Implemented by Will Newton and
|
||
Richard Henderson.
|
||
|
||
* Optimized libm functions for SPARC. Implemented by David S. Miller.
|
||
|
||
* Support for building more of ARM glibc as Thumb-2 code. Implemented by
|
||
Richard Henderson.
|
||
|
||
* Support for building most of MIPS glibc as MIPS16 code. Implemented by
|
||
Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
|
||
|
||
* Added a benchmark framework to track performance of functions in glibc.
|
||
|
||
* New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
|
||
It is based on draft TS 18661 and currently enabled as a GNU extension.
|
||
|
||
* On Linux, the clock function now uses the clock_gettime system call
|
||
for improved precision, rather than old times system call.
|
||
|
||
* Added support for version-3 tz format files. This is needed when using
|
||
the tz database release 2013e or later, and affects a few unusual cases --
|
||
currently only TZ='America/Godthab' for time stamps after 2037.
|
||
|
||
* Added new API functions pthread_getattr_default_np and
|
||
pthread_setattr_default_np to get and set the default pthread
|
||
attributes of a process.
|
||
|
||
* Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
|
||
This may improve lock scaling of existing programs on TSX capable systems.
|
||
When the --enable-lock-elision=yes parameter is specified at configure
|
||
time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
|
||
mutexes.
|
||
|
||
* Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
|
||
availability). Implemented by Ryan S. Arnold.
|
||
|
||
* Support added for POWER8 platform. Implemented by Ryan S. Arnold.
|
||
|
||
Version 2.17
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
|
||
9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
|
||
11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
|
||
13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
|
||
13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
|
||
14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
|
||
14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
|
||
14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
|
||
14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
|
||
14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
|
||
14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
|
||
14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
|
||
14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
|
||
14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
|
||
14879, 14889, 14893, 14898, 14914.
|
||
|
||
* Optimization of memcpy for MIPS.
|
||
|
||
* CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
|
||
EMFILE has been fixed (Bugzilla #14889).
|
||
|
||
* The add-on ports collection is now distributed in the "ports" subdirectory
|
||
of the main GNU C Library distribution, rather than separately.
|
||
|
||
* Port to ARM AArch64 contributed by Linaro.
|
||
|
||
* Support for STT_GNU_IFUNC symbols added for s390 and s390x.
|
||
Optimized versions of memcpy, memset, and memcmp added for System z10 and
|
||
zEnterprise z196.
|
||
Implemented by Andreas Krebbel.
|
||
|
||
* The new function secure_getenv allows secure access to the environment,
|
||
returning NULL if running in a SUID/SGID process. This function replaces
|
||
the internal function __secure_getenv.
|
||
|
||
* SystemTap static probes have been added into the dynamic linker.
|
||
Implemented by Gary Benson.
|
||
|
||
* Optimizations of string functions strstr, strcasestr and memmem.
|
||
Implemented by Maxim Kuvyrkov.
|
||
|
||
* The minimum Linux kernel version that this version of the GNU C Library
|
||
can be used with is 2.6.16.
|
||
|
||
* Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
|
||
powerpc POWER7. Implemented by Will Schmidt.
|
||
|
||
* New configure option --disable-nscd builds the C library such that it
|
||
never attempts to contact the Name Service Caching Daemon (nscd).
|
||
New configure option --disable-build-nscd avoids building nscd itself;
|
||
this is the default if --disable-nscd is used.
|
||
|
||
* Improved support for cross-compilation, including cross-testing and
|
||
bootstrap builds without a previously built glibc.
|
||
|
||
* Several testsuite tests are now able to test multiple IFUNC variants of an
|
||
interface, rather than just testing the one that would be chooen by
|
||
default.
|
||
|
||
* New configure options --with-bugurl and --with-pkgversion, for
|
||
distributors to use to embed their bug-reporting and package version
|
||
information in --help and --version output.
|
||
|
||
* The ttyname and ttyname_r functions on Linux now fall back to searching for
|
||
the tty file descriptor in /dev/pts or /dev if /proc is not available. This
|
||
allows creation of chroots without the procfs mounted on /proc.
|
||
|
||
* The `crypt' function now fails if passed salt bytes that violate the
|
||
specification for those values. On Linux, the `crypt' function will
|
||
consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
|
||
enabled, and fail on encrypted strings using the MD5 or DES algorithm
|
||
when the mode is enabled.
|
||
|
||
* The `clock_*' suite of functions (declared in <time.h>) is now available
|
||
directly in the main C library. Previously it was necessary to link with
|
||
-lrt to use these functions. This change has the effect that a
|
||
single-threaded program that uses a function such as `clock_gettime' (and
|
||
is not linked with -lrt) will no longer implicitly load the pthreads
|
||
library at runtime and so will not suffer the overheads associated with
|
||
multi-thread support in other code such as the C++ runtime library.
|
||
|
||
* New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
|
||
sat_IN, and szl_PL.
|
||
|
||
Version 2.16
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
174, 208, 350, 369, 411, 706, 766, 2074, 2541, 2547, 2548, 2550, 2551,
|
||
2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678, 3335,
|
||
3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596, 4822,
|
||
5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794, 6884,
|
||
6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135, 10140,
|
||
10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 10882, 11174,
|
||
11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
|
||
12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
|
||
13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
|
||
13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
|
||
13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
|
||
13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
|
||
13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
|
||
13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
|
||
13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
|
||
13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
|
||
13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
|
||
13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
|
||
13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
|
||
14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
|
||
14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
|
||
14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
|
||
14277, 14278.
|
||
|
||
* Support for the x32 ABI on x86-64 added. The x32 target is selected by
|
||
configuring glibc with:
|
||
BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
|
||
Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
|
||
Implemented by H.J. Lu.
|
||
|
||
* ISO C11 support:
|
||
|
||
+ define static_assert
|
||
|
||
+ do not declare gets
|
||
|
||
+ declare at_quick_exit and quick_exit also for ISO C11
|
||
|
||
+ aligned_alloc. NB: The code is deliberately allows the size parameter
|
||
to not be a multiple of the alignment. This is a moronic requirement
|
||
in the standard but it is only a requirement on the caller, not the
|
||
implementation.
|
||
|
||
+ timespec_get added
|
||
|
||
+ uchar.h support added
|
||
|
||
+ CMPLX, CMPLXF, CMPLXL added
|
||
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Support for the IA-64 has been moved to ports.
|
||
|
||
* Remove support for anything but ELF binary format
|
||
|
||
* Checking versions of poll, ppoll added.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* More generic and 64-bit performance optimizations to math functions.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New configure option --enable-obsolete-rpc makes the deprecated RPC
|
||
headers and functions available at compile time as they were before
|
||
version 2.14. This option will be removed at some time in the future
|
||
after the TI-RPC library becomes fully sufficient for the needs of
|
||
existing applications.
|
||
|
||
* Compatibility code for Linux kernel versions before 2.4 has been removed.
|
||
Note that glibc is not expected to work with any Linux kernel version
|
||
before 2.6.
|
||
|
||
* New header <sys/auxv.h> and function getauxval allowing easy access to
|
||
the AT_* key-value pairs passed from the Linux kernel. The header also
|
||
defines the HWCAP_* bits associated with the AT_HWCAP key.
|
||
|
||
* New locales: mag_IN
|
||
|
||
* New configure option --enable-systemtap builds SystemTap static probes
|
||
into libc for setjmp and longjmp and into libpthread for various operations.
|
||
So far the setjmp/longjmp probes and some of the libpthread probes are
|
||
provided only for i*86 and x86_64.
|
||
Implemented by Roland McGrath and Rayson Ho.
|
||
|
||
* Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
|
||
|
||
* More optimized functions for PowerPC. Implemented by Adhemerval Zanella
|
||
and Will Schmidt.
|
||
|
||
* More optimized functions for SPARC. Implemented by David S. Miller.
|
||
|
||
* Improved support for cross-compilation, especially bootstrap builds
|
||
without a previously built glibc.
|
||
|
||
* Ports for the TILE-Gx and TILEPro families of processors. Contributed by
|
||
Chris Metcalf from Tilera.
|
||
|
||
* Support for the old ARM ABI has been removed from ports. Only the EABI is
|
||
now supported for ARM processors.
|
||
|
||
* The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
|
||
as the name of the dynamic linker, to distinguish it from the
|
||
/lib/ld-linux.so.3 dynamic linker used for the base EABI.
|
||
|
||
* Support for CRIS has been removed from ports.
|
||
|
||
* A new class of installed header has been documented for low-level
|
||
platform-specific functionality. PowerPC added the first instance with a
|
||
function to provide time base register access. Contributed by Tulio
|
||
Magno Quites Machado Filho.
|
||
|
||
* ix86 configurations now install header files that are consistent with
|
||
what x86-64 configurations install. These same header files can be used
|
||
for -m32, -m64, or -mx32 builds.
|
||
Contributed by H.J. Lu.
|
||
|
||
* Math library bug fixes. A thorough audit of all open math library bugs was
|
||
conducted by Joseph Myers. Significant progress was made on many math
|
||
library bugs resulting in more accurate exceptions and function results.
|
||
Many thanks to all those that contributed including Andreas Jaeger for his
|
||
patch review and work on the x87 trigonometric instruction issues.
|
||
|
||
* Timezone data is no longer installed. Timezone-related binaries and scripts
|
||
will continue to be installed. Users should obtain their timezone data from
|
||
their distribution provider or from the tzdata package at
|
||
<ftp://munnari.oz.au/pub/>.
|
||
|
||
Version 2.15
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
|
||
12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
|
||
13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
|
||
13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
|
||
13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
|
||
13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
|
||
13484, 13506, 13515, 13523, 13524, 13538, 13540
|
||
|
||
* New program pldd to list loaded object of a process
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Add nss_db support back to glibc. No more dependency on Berkeley db
|
||
and support for initgroups lookups.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
|
||
Contributed by HJ Lu.
|
||
|
||
* Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
|
||
Contributed by HJ Lu.
|
||
|
||
* Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
|
||
on x86-32 and x86-64.
|
||
Contributed by Liubov Dmitrieva.
|
||
|
||
* Optimized strchr and strrchr for SSE on x86-32.
|
||
Contributed by Liubov Dmitrieva.
|
||
|
||
* Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
|
||
for x86-64 and x86-32.
|
||
Contributed by Liubov Dmitrieva.
|
||
|
||
* New interfaces: scandirat, scandirat64
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* nscd now also caches the netgroup database.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Integrate libm with gcc's -ffinite-math-only option.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Lots of generic, 64-bit, and x86-64-specific performance optimizations
|
||
to math functions. Implemented by Ulrich Drepper.
|
||
|
||
* Optimized strcasecmp and strncasecmp for AVX on x86-64.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New Linux interfaces: process_vm_readv, process_vm_writev
|
||
|
||
* Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Optimized nearbyint and strcasecmp for PPC.
|
||
Implemented by Adhemerval Zanella.
|
||
|
||
* New locales: bho_IN, unm_US, es_CU, ta_LK
|
||
|
||
Version 2.14
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
|
||
11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
|
||
11781, 11799, 11820, 11837, 11857, 11884, 11892, 11895, 11901, 11945,
|
||
11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
|
||
12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
|
||
12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
|
||
12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
|
||
12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
|
||
12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
|
||
12795, 12811, 12813, 12814, 12841
|
||
|
||
* The RPC implementation in libc is obsoleted. Old programs keep working
|
||
but new programs cannot be linked with the routines in libc anymore.
|
||
Programs in need of RPC functionality must be linked against TI-RPC.
|
||
The TI-RPC implementation is IPv6 enabled and there are other benefits.
|
||
|
||
Visible changes of this change include (obviously) the inability to link
|
||
programs using RPC functions without referencing the TI-RPC library and the
|
||
removal of the RPC headers from the glibc headers.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
|
||
syncfs, setns, sendmmsg
|
||
|
||
* New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
|
||
yue_HK, lij_IT, mhr_RU
|
||
|
||
* New encodings: CP770, CP771, CP772, CP773, CP774
|
||
|
||
* New program sotruss to trace calls through PLTs
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* The malloc hook implementation is marked deprecated and will be removed
|
||
from the default implementation in the next version. The design never
|
||
worked ever since the introduction of threads. Even programs which do
|
||
not create threads themselves can use multiple threads created internally.
|
||
|
||
Version 2.13
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
|
||
11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
|
||
12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
|
||
12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
|
||
12378, 12394, 12397
|
||
|
||
* New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
|
||
|
||
* POWER7 optimizations: memset, memcmp, strncmp
|
||
|
||
* New optimized string functions for x86-64: strnlen (SSE2),
|
||
strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
|
||
Implemented by Ulrich Drepper.
|
||
|
||
Version 2.12
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
|
||
10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
|
||
11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
|
||
11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
|
||
11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
|
||
11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
|
||
11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
|
||
11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
|
||
|
||
* New interfaces: pthread_getname_np, pthread_setname_np
|
||
|
||
* New Linux interface: recvmmsg
|
||
|
||
* STT_GNU_IFUNC implemented for Sparc by David Miller.
|
||
|
||
* The dynamic linker now recognizes supported ABI versions from the
|
||
EI_ABIVERSION field in the ELF header.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
|
||
will not be used to fill in password fields in the passwd.byname replies.
|
||
Instead it is used to synthesize the shadow.byname table, should it be
|
||
missing. This is a useful mode in some installations involving Solaris.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New locales: kok_IN, sq_MK, cv_RU
|
||
|
||
Version 2.11
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
|
||
10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
|
||
10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
|
||
10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
|
||
10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
|
||
10789, 10817, 10823, 10840, 10847
|
||
|
||
* New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
|
||
mkostemps64
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Checking version of longjmp added that fails if an uninitialized stack
|
||
frame would be created. Implemented by Ulrich Drepper.
|
||
|
||
* STT_GNU_IFUNC is now supported in static executables.
|
||
Implemented by H.J. Lu.
|
||
|
||
* STT_GNU_IFUNC implemented for PPC by Alan Modra.
|
||
|
||
* New optimized string functions for x86-64: strstr, strcasestr, memcmp,
|
||
strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
|
||
strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
|
||
Contributed by H.J. Lu.
|
||
|
||
strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
|
||
strstr, strcasestr.
|
||
Contributed by H.J. Lu.
|
||
|
||
* Support for fma instruction in AVX on x86-64.
|
||
Implemented by H.J. Lu and Ulrich Drepper.
|
||
|
||
* AVX support in x86-64 auditing support in ld.so.
|
||
Implemented by H.J. Lu.
|
||
|
||
* STB_GNU_UNIQUE support added.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Implement second fallback mode for optimized DNS lookup for even more
|
||
broken environments. If two requests from the same port are not
|
||
handled correctly close the socket and open a new one before sending
|
||
the second request. The 'single-request-reopen' option in /etc/resolv.conf
|
||
can be used to select this mode right away, instead of rediscovering the
|
||
necessity is every process again.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
|
||
Implemented by Adam Tkac.
|
||
|
||
* Optimized iconv conversions for S390x.
|
||
Implemented by Andreas Krebbel.
|
||
|
||
* Using condvars with PI mutexes is now more efficient due to kernel
|
||
support for requeueing to PI futexes. NPTL support added for x86-64.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New locales: ps_AF, my_MM
|
||
|
||
Version 2.10
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
|
||
9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
|
||
9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
|
||
9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
|
||
10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
|
||
|
||
* New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New Linux interfaces: accept4, fallocate, fallocate64.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Correct declarations of string function when used in C++ code. This
|
||
could lead to compile errors for invalid C++ code.
|
||
|
||
* XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
|
||
now in POSIX.
|
||
|
||
* New POSIX 2008 interface: psiginfo
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New ISO C++1x interfaces: quick_exit, at_quick_exit
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Support for selecting between multiple function definitions at runtime
|
||
using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
|
||
|
||
* The libcrypt library can now use the hash function implementations in
|
||
NSS. Implemented by Ulrich Drepper.
|
||
|
||
* The malloc implementation can be compiled to be less memory efficient
|
||
but higher performing in multi-threaded programs.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New locales: nan_TW@latin, ks_IN
|
||
|
||
* Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Extended printf hook support. It is possible to use user-defined types
|
||
and extend existing format specifiers.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Handling for group shadow files has been added.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
|
||
servers (the case, e.g., for some people using the built-in DNS
|
||
server in ADSL modems/routers). There is a once-per-process timeout
|
||
in case of a broken server. To avoid it, users can run nscd or put
|
||
'options single-request' in /etc/resolv.conf.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
Version 2.9
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
|
||
6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
|
||
6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
|
||
6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
|
||
6968, 6974, 6980, 6995, 7008, 7009, 7029
|
||
|
||
* Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
|
||
up at the same time. Implemented by Ulrich Drepper.
|
||
|
||
* TLS descriptors for LD and GD on x86 and x86-64.
|
||
Implemented by Alexandre Oliva.
|
||
|
||
* getaddrinfo now handles DCCP and UDPlite.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
|
||
htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New implementation of memmem, strstr, and strcasestr which is O(n).
|
||
Implemented by Eric Blake.
|
||
|
||
* New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
|
||
|
||
* Implement "e" option for popen to open file descriptor with the
|
||
close-on-exec flag set. Implemented by Ulrich Drepper.
|
||
|
||
* Implement "b" mode for fmemopen. In this mode writes writes don't
|
||
implicitly add a NUL byte and seeks from the end of the buffer really
|
||
use the buffer end, not the string length as the basis.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Many functions, exported and internal, now atomically set the close-on-exec
|
||
flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
|
||
|
||
* Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
|
||
Sinhala)
|
||
Implemented by Pravin Satpute.
|
||
|
||
* New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
|
||
|
||
Version 2.8
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
|
||
5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
|
||
5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
|
||
5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
|
||
5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
|
||
5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
|
||
5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
|
||
|
||
* New locales: bo_CN, bo_IN, shs_CA.
|
||
|
||
* New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
|
||
|
||
* Sorting rules for some Indian languages (Devanagari and Gujarati).
|
||
Implemented by Pravin Satpute.
|
||
|
||
* IPV6 addresses in /etc/resolv.conf can now have a scope ID
|
||
|
||
* nscd caches now all timeouts for DNS entries
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* nscd is more efficient and wakes up less often.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
|
||
vdprintf, and obstack_vprintf.
|
||
Implemented by Jakub Jelinek.
|
||
|
||
* Faster memset for x86-64.
|
||
Implemented by Harsha Jagasia and H.J. Lu.
|
||
|
||
* Faster memcpy on x86.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Faster sqrt and sqrtf implemention for some PPC variants.
|
||
Implemented by Steven Munroe.
|
||
|
||
Version 2.7
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
|
||
4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
|
||
4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
|
||
4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
|
||
5071, 5103, 5104, 5112, 5113, 5184, 5186
|
||
|
||
* More checking functions: fread, fread_unlocked, open*, mq_open.
|
||
Implemented by Jakub Jelinek and Ulrich Drepper.
|
||
|
||
* Extend fortification to C++. Implemented by Jakub Jelinek.
|
||
|
||
* Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
|
||
by not recognizing 'a' as a modifier when those specs are requested.
|
||
Implemented by Jakub Jelinek.
|
||
|
||
* PPC optimizations to math and string functions.
|
||
Implemented by Steven Munroe.
|
||
|
||
* New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
|
||
options to be passed. Implemented by Ulrich Drepper.
|
||
|
||
* More CPU set manipulation functions. Implemented by Ulrich Drepper.
|
||
|
||
* New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Handle private futexes in the NPTL implementation.
|
||
Implemented by Jakub Jelinek and Ulrich Drepper.
|
||
|
||
* Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
|
||
Implemented by Roland McGrath and Ulrich Drepper.
|
||
|
||
* Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
|
||
|
||
* SHA-256 and SHA-512 based password encryption.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
|
||
ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
|
||
yo_NG.
|
||
|
||
+ New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
Version 2.6
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
|
||
3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
|
||
3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
|
||
3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
|
||
3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
|
||
4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
|
||
4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
|
||
4702, 4858
|
||
|
||
* New Linux interfaces: epoll_pwait, sched_getcpu.
|
||
|
||
* New generic interfaces: strerror_l.
|
||
|
||
* nscd can now cache the services database. Implemented by Ulrich Drepper.
|
||
|
||
Version 2.5
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
|
||
1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
|
||
2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
|
||
2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
|
||
2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
|
||
2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
|
||
2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
|
||
3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
|
||
3225, 3251, 3252, 3253, 3273
|
||
|
||
* For Linux, the sorting of addresses returned by getaddrinfo now also
|
||
handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* New Linux interfaces: splice, tee, sync_file_range, vmsplice.
|
||
|
||
* New iconv module for MIK. Contributed by Alexander Shopov.
|
||
|
||
* For sites with broken group and/or passwd database, the auto-propagate
|
||
option of nscd can prevent creating ID lookup entries from the results
|
||
of a name lookup and vice versa. This usually is no problem but some
|
||
site might have problems with the default behavior.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* Iterating over entire database in NIS can be slow. With the
|
||
SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
|
||
to trade time for memory. The entire database will be read at once.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* The interfaces introduced in RFC 3542 have been implemented by
|
||
Ulrich Drepper.
|
||
|
||
* Support for the new ELF hash table format was added by Ulrich Drepper.
|
||
|
||
* Support for priority inheritance mutexes added by Jakub Jelinek and
|
||
Ulrich Drepper.
|
||
|
||
* Support for priority protected mutexes added by Jakub Jelinek.
|
||
|
||
* New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
|
||
or_IN, csb_PL, fy_NL, sr_ME.
|
||
|
||
Version 2.4
|
||
|
||
* More overflow detection functions.
|
||
|
||
* New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
|
||
IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
|
||
|
||
More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
|
||
IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
|
||
IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
|
||
IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
|
||
IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
|
||
by Masahide Washizawa.
|
||
|
||
* It is now possible to install audit libraries for the dynamic linker using
|
||
LD_AUDIT. Implemented by Ulrich Drepper.
|
||
|
||
* The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
|
||
longer supported. The new NPTL implementation requires Linux 2.6 kernels.
|
||
For a libc and libpthread that works well on Linux 2.4 kernels, we
|
||
recommend using the stable 2.3 branch.
|
||
|
||
* The new function open_wmemstream acts like open_memstream,
|
||
but uses a wchar_t wide character buffer.
|
||
|
||
* The new function ppoll is an improved version of poll, similar to pselect.
|
||
|
||
* New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
|
||
futimesat, faccessat, mkdirat, mkfifoat, mknodat,
|
||
renameat, unlinkat, linkat, symlinkat, readlinkat.
|
||
|
||
* New Linux kernel system calls: unshare,
|
||
inotify_init, inotify_add_watch, inotify_rm_watch.
|
||
|
||
* The euidaccess function is now also known by the alias eaccess,
|
||
for compatibility with some other systems.
|
||
|
||
* Timezone data updated to 2006b version.
|
||
|
||
Version 2.3.6
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
|
||
1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
|
||
1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
|
||
1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
|
||
1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
|
||
1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
|
||
|
||
Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
|
||
|
||
* As of this release, GCC 4 can be used to compile the C Library.
|
||
|
||
* Timezone data updated to 2005m version.
|
||
|
||
Version 2.3.5
|
||
|
||
* The following bugs are resolved with this release:
|
||
|
||
284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
|
||
722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
|
||
737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
|
||
777, 787, 821, 822, 823, 825
|
||
|
||
Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
|
||
|
||
Version 2.3.4
|
||
|
||
* Support for RFC 3678. Real implementations exist only for Linux so far.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* nscd can now cache entries persistently. Expiring entries are reloaded.
|
||
For speedups the cache can be shared in memory with client processes.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* nscd can now perform SELinux checks.
|
||
Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
|
||
|
||
* getaddrinfo queries are now cached. Canonical name lookup is performed
|
||
efficiently.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* The nothrow function attribute is used when headers are used by gcc when
|
||
compiling C code. This can avoid significant amounts of exception
|
||
handling data.
|
||
|
||
* The malloc functions perform more error checking and are stricter when
|
||
it comes to reacting on errors. The default action is to terminate
|
||
the process after showing an error message. Implemented by Ulrich Drepper.
|
||
|
||
* Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
|
||
lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
|
||
|
||
* Namespaces in ld.so are implemented. DSOs can be loaded in separate
|
||
namespaces using the new function dlmopen(). This feature is of course,
|
||
like most other dynamic loading functionality, not available in statically
|
||
linked applications. Implemented by Ulrich Drepper.
|
||
|
||
* Low-overhead boundary checking variants of string and some stdio functions
|
||
were added. These are to be used in conjunction with a gcc patch by
|
||
Jakub Jelinek which adds calls to these functions if possible.
|
||
Implemented by Jakub Jelinek and Ulrich Drepper.
|
||
|
||
* Old code for several operating systems and machine architectures that
|
||
have not been in working condition in a long time have been removed from
|
||
the main source tree maintained by the GNU C Library's maintainers.
|
||
These files are now reside in the separate `ports' source module
|
||
that is usable as an add-on when building the library.
|
||
|
||
Version 2.3.3
|
||
|
||
* New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
|
||
interrogate the dynamic linker, compatible with the Solaris interface.
|
||
|
||
* ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
|
||
implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
|
||
|
||
* getifaddrs now uses the netlink interface on Linux to get its information.
|
||
Implemented by Thorsten Kukuk.
|
||
|
||
* getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
* support for non-executable stacks on x86 has been added. Changes mostly
|
||
by Roland McGrath.
|
||
|
||
* regex is now much faster for multibyte locales. Changes by Jakub Jelinek
|
||
and Ulrich Drepper.
|
||
|
||
* getaddrinfo now performs destination address selection according to
|
||
RFC 3484.
|
||
|
||
Version 2.3.2
|
||
|
||
* Thread-safe interfaces for many functions that access locale data
|
||
were added in version 2.3, but these features were omitted from NEWS.
|
||
Many functions have variants with an `_l' suffix that take a `locale_t'
|
||
object as a parameter rather than consulting the current locale.
|
||
The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
|
||
create and maintain `locale_t' objects. Additionally, the new function
|
||
`uselocale' sets "the current locale" (as used by functions not so
|
||
parameterized) set for an individual thread. These features were added
|
||
in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
|
||
|
||
* The functions getresuid, getresgid, setresuid, and setresgid, which
|
||
have long been available on Linux, are now declared in <unistd.h>
|
||
and are now also available on the Hurd.
|
||
|
||
* ELF thread-local storage support (TLS) now works on x86-64.
|
||
|
||
* The new dynamic string token $LIB is expanded in shared library names.
|
||
This normally expands to lib, but on some 64-bit platforms to lib64 instead.
|
||
|
||
* Aldy Hernandez contributed complete software floating point support for
|
||
PowerPC machines with no FPU.
|
||
|
||
* fexecve is implemented on Linux.
|
||
|
||
* The `btowc' function should work at least twice as fast due to
|
||
specialized callbacks in the iconv modules. Implemented by Bruno Haible.
|
||
|
||
* With approriate thread add-ons cancelable functions are now implemented
|
||
in libc.so as well. No need to call the function in libpthread. This
|
||
change allowed to finally disable the incorrect and expensive handling
|
||
of weak definition in ld.so.
|
||
|
||
* Yet more PLT entries in libc.so have been removed. We finally arrived
|
||
at the bare minimum. Startup times improved appropriately.
|
||
|
||
* Support for the new Linux/x86 system call interface was added. The
|
||
AT_SYSINFO auxiliary vector entry is recognized and handled.
|
||
|
||
Version 2.3
|
||
|
||
* Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
|
||
charsets.
|
||
|
||
* iconv (the program and the interface) now accepts empty names (excluding
|
||
options like //TRANSLIT) to mean "use charset of current locale".
|
||
|
||
* localedef can now transliterate characters in strings which are not in
|
||
the provided charmap. The information from the input locale is used.
|
||
|
||
* Prelinking support was added for ELF targets. This requires additional
|
||
tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
|
||
|
||
* Read-only stdio streams now use mmap to speed up operation by eliminating
|
||
copying and buffer underflows. To use add 'm' to the mode string of
|
||
the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
|
||
|
||
* The malloc functions were completely rewritten by Wolfram Gloger based
|
||
on Doug Lea's malloc-2.7.0.c.
|
||
|
||
* Isamu Hasegawa contributed a completely new and POSIX-conformant
|
||
implementation of regex.
|
||
|
||
* Bruno Haible upgraded the iconv and locale implementation to support
|
||
Unicode 3.2.
|
||
|
||
* Contents of the LC_* and LANG environment variables in the CEN style are
|
||
not recognized anymore. It never was used. Change by Ulrich Drepper.
|
||
|
||
* The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
|
||
thread-local storage (TLS) ABI on some platforms.
|
||
Changes by Ulrich Drepper. SH support by Kaz Kojima.
|
||
|
||
* Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
|
||
EUC-JISX0213, and TSCII.
|
||
|
||
* New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
|
||
BSD-compatible interface for getting all network interface addresses.
|
||
Implementation for IPv4 by Roland McGrath.
|
||
|
||
* Loading of locale data is faster due to the introduction of a locale
|
||
archive. Implemented by Roland McGrath and Ulrich Drepper.
|
||
|
||
* Startup times are significantly reduced by not using exported functions
|
||
inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
|
||
and Ulrich Drepper.
|
||
|
||
* Steven Munroe contributed a port to PowerPC64/Linux.
|
||
|
||
Version 2.2.6
|
||
|
||
* The Hurd now uses the GNU libio implementation of stdio rather than the
|
||
old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
|
||
|
||
* The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
|
||
with the same behavior as the Linux system call of the same name.
|
||
|
||
Version 2.2.5
|
||
|
||
* Stephen Moshier implemented log2, log10, powl and cbrtl for the
|
||
128-bit long double format.
|
||
|
||
* Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
|
||
IBM1161, and IBM1162 charsets.
|
||
|
||
* Andreas Jaeger contributed a port to x86-64/Linux.
|
||
|
||
* Peter Bruin contributed a port to PowerPC/Hurd.
|
||
|
||
* libc functions using I/O streams now can handle wide-oriented streams
|
||
as well.
|
||
|
||
* optimizations in the dynamic linker. Binaries created by recent binutils
|
||
versions start up quicker due to reduced time spent on relocations.
|
||
|
||
* Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
|
||
|
||
Version 2.2.4
|
||
|
||
* Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
|
||
asinh, atanh, j0 for the 128-bit long double format.
|
||
|
||
* Bruno Haible updated all the code handling Unicode in some form to
|
||
support Unicode 3.1.
|
||
|
||
* Speed of regex for single-byte locales is back to previous levels.
|
||
Patch by Isamu Hasegawa.
|
||
|
||
* Alpha, SPARC, and IA-64 now also using floating stacks.
|
||
|
||
* Startup time of internationalized applications greatly improved through
|
||
iconv cache. Use iconvconfig to generate the cache file.
|
||
Contributed by Ulrich Drepper.
|
||
|
||
* The IA-64 specific part of ld.so was rewritten to eliminate some pretty
|
||
severe performance problems. Patch by David Mosberger.
|
||
|
||
* The Hurd port got a lot more functionality like AIO, various stdio
|
||
extensions, etc. Mainly done by Roland McGrath.
|
||
|
||
* mtrace can now lookup symbols in shared libraries.
|
||
|
||
Version 2.2.3
|
||
|
||
* Intel's IA-64 math library is largely integrated. It provides fast and
|
||
accurate implementatations for most basic and standard math functions
|
||
in float, double, and long double format.
|
||
|
||
* Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
|
||
and asin for the 96-bit long double format and asin, log, tan for the
|
||
128-bit long double format.
|
||
|
||
* The beginning of a last-bit accurate math library by IBM Haifa were added.
|
||
The basic double functions exist today. Contributed by Abraham Ziv
|
||
<ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
|
||
<ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
|
||
|
||
* An asynchronous name lookup library was added. The interface is designed
|
||
after POSIX AIO. The proposal was circulated beforehand to get comments.
|
||
No negative ones came in. Implemented by Ulrich Drepper.
|
||
|
||
* Port to S390/64bit contributed by Martin Schwidefsky
|
||
<schwidefsky@de.ibm.com>.
|
||
|
||
* David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
|
||
of functions for Linux/IA-64.
|
||
|
||
* The RPC code is now thread safe. Threads can now use the same service
|
||
of different services at the same time. Patch by Eric Norum
|
||
<eric.norum@usask.ca> with some help by Ulrich Drepper.
|
||
|
||
* Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
|
||
family of functions for Linux/S390.
|
||
|
||
* Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
|
||
of functions for Linux/x86.
|
||
|
||
* Port to Linux/CRIS contributed by Axis Communications.
|
||
|
||
Version 2.2.2
|
||
|
||
* Lots of headers were cleaned up. Using the tool in the conform/ subdir
|
||
we can now check for namespace violations and missing declarations. The
|
||
result is that almost all headers are now Unix-compliant (as defined in
|
||
the upcoming XPG6). The negative side is that some programs might need
|
||
corrections, too, if they depend on the incorrect form of the headers in
|
||
previous versions which defined too many symbols and included too many
|
||
other headers.
|
||
|
||
* regex now handles multibyte character sets correctly.
|
||
Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
|
||
|
||
* iconv (the program) does now conform to the upcoming XPG6 and handles
|
||
charmaps. Instead of the charset names the path of charmaps can be
|
||
provided and the conversion happens based on this data.
|
||
Contributed by Ulrich Drepper.
|
||
|
||
* The locale program now provides detailed information about the installed
|
||
locales. While
|
||
|
||
locale -a
|
||
|
||
only lists the names of the supported locales
|
||
|
||
locale -a --verbose
|
||
|
||
provides details such as country, language, and codeset name.
|
||
Contributed by Ulrich Drepper.
|
||
|
||
Version 2.2.1
|
||
|
||
* The gencat program now parses the input file according to the charset
|
||
selected by the LC_CTYPE category. This is important for stateful
|
||
character sets. To make generating catalogs easier there is a way
|
||
to overwrite the charset selected by the locale: before the first
|
||
message or $ quote line the catalog can contain a line like
|
||
|
||
$ codeset=ISO-8859-2
|
||
|
||
to select the charset (ISO-8859-2 in this case).
|
||
|
||
Implemented by Shinya Hanataka and Ulrich Drepper.
|
||
|
||
* New codeset conversion modules: IBM-922 (Estonia PC codeset),
|
||
IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
|
||
Contributed by Masahide Washizawa <washi@jp.ibm.com>.
|
||
|
||
* Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
|
||
<rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
|
||
|
||
* The LANGUAGE environment variable is now ignored unless the locale is
|
||
changed from the default "C" locale.
|
||
|
||
* The usual bug fixes.
|
||
|
||
Version 2.2
|
||
|
||
* Greg McGary added runtime support for bounds checking using gcc's
|
||
new -fbounded-pointers option. ix86 target is complete. PowerPC
|
||
is in progress.
|
||
|
||
* Thorsten Kukuk added secure mode support to nscd.
|
||
|
||
* The Berkeley db libraries have been removed.
|
||
|
||
Related, the nss_db module is now in a separate package since it
|
||
obviously requires a database library being available.
|
||
|
||
* Wide character I/O streams implemented by Ulrich Drepper.
|
||
|
||
* Functions from the extended socket API added by Ulrich Drepper.
|
||
|
||
* Functions feenableexcept and fedisableexcept to control the
|
||
behaviour of individual exceptions have been added by Andreas Jaeger.
|
||
|
||
* ldconfig program added by Andreas Jaeger and Jakub Jelinek.
|
||
|
||
* The resolver code has been updated from bind 8.2.3-T5B which supports
|
||
threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
|
||
and Mark Kettenis.
|
||
|
||
This change could in some situations effect backward compatibility. Since
|
||
now `_res' is a thread-local instead of a global variable, modifying it
|
||
in one thread does not have any effect in other threads.
|
||
|
||
The resolver library was also extended to allow IPv6 as the transport
|
||
protocol for the requests. This work was done by Stig Venaas.
|
||
|
||
* Compatibility code for K&R C compilers has been removed from the
|
||
header files. A ISO C compiler is needed to use the library
|
||
(conforming to either C89 or C99 standard).
|
||
|
||
* Complete rewrite of the localedef program to support multibyte character
|
||
sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
|
||
strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
|
||
Implemented by Ulrich Drepper.
|
||
|
||
Bruno Haible significantly improved the generation and use of the data
|
||
structures for the wide character tables.
|
||
|
||
* Plural handling in gettext implemented by Ulrich Drepper.
|
||
|
||
* The utmp daemon has been removed.
|
||
|
||
* The port to MIPS-Linux has been finished by Andreas Jaeger.
|
||
|
||
* A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
|
||
and Yutaka Niibe.
|
||
|
||
* POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
|
||
|
||
* POSIX barriers implemented by Kaz Kylheku.
|
||
|
||
* POSIX spawn function family implemented by Ulrich Drepper.
|
||
|
||
* POSIX spinlocks are now available.
|
||
|
||
* Timed wait functions for mutex, rwlock, and semaphores are implemented.
|
||
|
||
* the configure option --enable-kernel=X.Y.Z allows to strip out
|
||
compatibility for kernel versions before X.Y.Z. This is currently only
|
||
implemented for Linux.
|
||
|
||
* the sockaddr_in6 structure changed. The IPv6 working group added a new
|
||
field sin6_scope_id. This means that all programs using IPv6 should be
|
||
recompiled. Don't expect binary compatibility with previous glibc
|
||
versions.
|
||
|
||
* various conversion modules for IBM character sets contributed by
|
||
Masahide Washizawa.
|
||
|
||
* IA-64 port by Jes Sorensen and HJ Lu.
|
||
|
||
Version 2.1.3
|
||
|
||
* bug fixes
|
||
|
||
|
||
Version 2.1.2
|
||
|
||
* bug fixes
|
||
|
||
|
||
Version 2.1.1
|
||
|
||
* New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
|
||
|
||
* New xdr functions are added; some rpc functions are now 64bit clean.
|
||
|
||
* Fixed a number of bugs and memory leaks (especially in NIS+ code).
|
||
|
||
* Fixed known incompatibilities with glibc 2.0.
|
||
|
||
* New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
|
||
|
||
* Optimized a number of functions (especially the ELF dynamic loader).
|
||
|
||
* Update timezone data files.
|
||
|
||
* lots of charmaps corrections
|
||
|
||
* some new locale definitions and charmaps
|
||
|
||
|
||
Version 2.1
|
||
|
||
* Richard Henderson corrected size of struct timeval on Linux/Alpha to
|
||
conform to POSIX member type requirements. Symbol versions have been
|
||
adjusted as needed within the library, and for direct use by applications,
|
||
but there is potential for problems if third-party libraries use
|
||
struct timeval as part of their interface. This does not present
|
||
a problem for X and other "essential" system libraries.
|
||
|
||
* An additional locale model to support C++ Standard Library locale
|
||
model and probably more was implemented by Ulrich Drepper.
|
||
|
||
* Eric Youngdale and Ulrich Drepper implemented versioning of objects on
|
||
symbol level.
|
||
|
||
* Miles Bader provided the `argp' function family to support hierachical
|
||
command line argument parsing, layered on top of getopt.
|
||
|
||
* strtod accepts new hexadecimal floating-point format from ISO C 9X.
|
||
|
||
* printf has two new specifiers %a and %A to print hexadecimal flaoting-point
|
||
numbers.
|
||
|
||
* scanf recognizes the %a and %A format for scanning floating point numbers.
|
||
|
||
* the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
|
||
information and interfaces for the available integer types.
|
||
|
||
* about 130 new math functions were added to implement the ISO C9x math
|
||
library.
|
||
|
||
* the new header <complex.h> contains definitions of the complex math
|
||
functions from ISO C 9X.
|
||
|
||
* the new header <tgmath.h> defines generic macros to use complex or
|
||
real valued functions.
|
||
|
||
* Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
|
||
|
||
* Andreas Jaeger provided a test suite for the math library.
|
||
|
||
* Mark Kettenis implemented the utmpx interface and an utmp daemon.
|
||
|
||
* Ulrich Drepper added character set conversion functions (iconv).
|
||
|
||
* Optimized string functions have been added.
|
||
|
||
* The localedata addon is now part of glibc.
|
||
|
||
* An implementation of profiling shared libraries was added by Ulrich Drepper.
|
||
|
||
* Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
|
||
daemon for NSS (nscd).
|
||
|
||
Missing a better place here are some numbers on improvements. Under
|
||
Linux 2.1.125 un-tar-ing the kernel sources takes
|
||
|
||
user system wall
|
||
|
||
using local files 12.19s 6.88s 22.91s
|
||
|
||
using NIS 13.92s 8.91s 26.34s
|
||
|
||
using NIS & nscd 10.37s 7.34s 25.30s
|
||
|
||
using NIS+ 27.57s 30.37s 640.46s
|
||
|
||
using NIS+ & nscd 10.25s 7.83s 26.51s
|
||
|
||
using NIS & old nscd [1] 13.83s 8.32s 29.60s
|
||
|
||
Keep in mind that non-namelookup related operations dominate above times.
|
||
It was just a common complain that using NIS+ unpacking the kernel is
|
||
horribly slow.
|
||
|
||
[1] The old nscd implementation is not available anymore since it was
|
||
distributed with glibc up to version 2.0.98 and thus is now replaced.
|
||
|
||
* Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
|
||
|
||
* Mark Kettenis provided a Hesiod NSS module.
|
||
|
||
* The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
|
||
and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
|
||
|
||
* rcmd can now handle netgroups (Dick Streefland).
|
||
|
||
* A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
|
||
Bambrough.
|
||
|
||
* Support for the IPv6 protocol has been added to the socket API, as per the
|
||
latest draft standards.
|
||
|
||
* Support for Linux 2.2 has been added.
|
||
|
||
* Interface changes relative to the latest 2.0.x release:
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
addseverity NEW: Unix98
|
||
alphasort64 NEW: LFS
|
||
argp_err_exit_status NEW: argp, GNU ext
|
||
argp_error NEW: argp, GNU ext
|
||
argp_failure NEW: argp, GNU ext
|
||
argp_help NEW: argp, GNU ext
|
||
argp_parse NEW: argp, GNU ext
|
||
argp_program_bug_address NEW: argp, GNU ext
|
||
argp_program_version NEW: argp, GNU ext
|
||
argp_program_version_hook NEW: argp, GNU ext
|
||
argp_state_help NEW: argp, GNU ext
|
||
argp_usage NEW: argp, GNU ext
|
||
authdes_create NEW: Secure RPC
|
||
authdes_getucred NEW: Secure RPC
|
||
authdes_pk_create NEW: Secure RPC
|
||
backtrace NEW: GNU ext.
|
||
backtrace_symbols NEW: GNU ext.
|
||
backtrace_symbols_fd NEW: GNU ext.
|
||
cacos NEW: ISO C 9x
|
||
cacosf NEW: ISO C 9x
|
||
cacosh NEW: ISO C 9x
|
||
cacoshf NEW: ISO C 9x
|
||
cacoshl NEW: ISO C 9x
|
||
cacosl NEW: ISO C 9x
|
||
capget NEW: kernel
|
||
capset NEW: kernel
|
||
carg NEW: ISO C 9x
|
||
cargf NEW: ISO C 9x
|
||
cargl NEW: ISO C 9x
|
||
casin NEW: ISO C 9x
|
||
casinf NEW: ISO C 9x
|
||
casinh NEW: ISO C 9x
|
||
casinhf NEW: ISO C 9x
|
||
casinhl NEW: ISO C 9x
|
||
casinl NEW: ISO C 9x
|
||
catan NEW: ISO C 9x
|
||
catanf NEW: ISO C 9x
|
||
catanh NEW: ISO C 9x
|
||
catanhf NEW: ISO C 9x
|
||
catanhl NEW: ISO C 9x
|
||
catanl NEW: ISO C 9x
|
||
cbc_crypt NEW: Secure RPC
|
||
ccos NEW: ISO C 9x
|
||
ccosf NEW: ISO C 9x
|
||
ccosh NEW: ISO C 9x
|
||
ccoshf NEW: ISO C 9x
|
||
ccoshl NEW: ISO C 9x
|
||
ccosl NEW: ISO C 9x
|
||
cexp NEW: ISO C 9x
|
||
cexpf NEW: ISO C 9x
|
||
cexpl NEW: ISO C 9x
|
||
cimag NEW: ISO C 9x
|
||
cimagf NEW: ISO C 9x
|
||
cimagl NEW: ISO C 9x
|
||
clearerr_locked REMOVED
|
||
clntunix_create NEW: sunrpc ext
|
||
clog NEW: ISO C 9x
|
||
clog10 NEW: ISO C 9x
|
||
clog10f NEW: ISO C 9x
|
||
clog10l NEW: ISO C 9x
|
||
clogf NEW: ISO C 9x
|
||
clogl NEW: ISO C 9x
|
||
conj NEW: ISO C 9x
|
||
conjf NEW: ISO C 9x
|
||
conjl NEW: ISO C 9x
|
||
cpow NEW: ISO C 9x
|
||
cpowf NEW: ISO C 9x
|
||
cpowl NEW: ISO C 9x
|
||
cproj NEW: ISO C 9x
|
||
cprojf NEW: ISO C 9x
|
||
cprojl NEW: ISO C 9x
|
||
creal NEW: ISO C 9x
|
||
crealf NEW: ISO C 9x
|
||
creall NEW: ISO C 9x
|
||
creat64 NEW: LFS
|
||
csin NEW: ISO C 9x
|
||
csinf NEW: ISO C 9x
|
||
csinh NEW: ISO C 9x
|
||
csinhf NEW: ISO C 9x
|
||
csinhl NEW: ISO C 9x
|
||
csinl NEW: ISO C 9x
|
||
csqrt NEW: ISO C 9x
|
||
csqrtf NEW: ISO C 9x
|
||
csqrtl NEW: ISO C 9x
|
||
ctan NEW: ISO C 9x
|
||
ctanf NEW: ISO C 9x
|
||
ctanh NEW: ISO C 9x
|
||
ctanhf NEW: ISO C 9x
|
||
ctanhl NEW: ISO C 9x
|
||
ctanl NEW: ISO C 9x
|
||
des_setparity NEW: Secure RPC
|
||
ecb_crypt NEW: Secure RPC
|
||
endutxent NEW: Unix98
|
||
exp10 NEW: ISO C 9x
|
||
exp10f NEW: ISO C 9x
|
||
exp10l NEW: ISO C 9x
|
||
exp2 NEW: ISO C 9x
|
||
exp2f NEW: ISO C 9x
|
||
exp2l NEW: ISO C 9x
|
||
fattach NEW: STREAMS
|
||
fdetach NEW: STREAMS
|
||
fdim NEW: ISO C 9x
|
||
fdimf NEW: ISO C 9x
|
||
fdiml NEW: ISO C 9x
|
||
feclearexcept NEW: ISO C 9x
|
||
fegetenv NEW: ISO C 9x
|
||
fegetexceptflag NEW: ISO C 9x
|
||
fegetround NEW: ISO C 9x
|
||
feholdexcept NEW: ISO C 9x
|
||
feof_locked REMOVED
|
||
feraiseexcept NEW: ISO C 9x
|
||
ferror_locked REMOVED
|
||
fesetenv NEW: ISO C 9x
|
||
fesetexceptflag NEW: ISO C 9x
|
||
fesetround NEW: ISO C 9x
|
||
fetestexcept NEW: ISO C 9x
|
||
feupdateenv NEW: ISO C 9x
|
||
fflush_locked REMOVED
|
||
ffsl NEW: GNU ext.
|
||
ffsll NEW: GNU ext.
|
||
fgetpos64 NEW: LFS
|
||
fgets_unlocked NEW: GNU ext.
|
||
fileno_locked REMOVED
|
||
fma NEW: ISO C 9x
|
||
fmaf NEW: ISO C 9x
|
||
fmal NEW: ISO C 9x
|
||
fmax NEW: ISO C 9x
|
||
fmaxf NEW: ISO C 9x
|
||
fmaxl NEW: ISO C 9x
|
||
fmin NEW: ISO C 9x
|
||
fminf NEW: ISO C 9x
|
||
fminl NEW: ISO C 9x
|
||
fmtmsg NEW: Unix98
|
||
fopen64 NEW: LFS
|
||
fputc_locked REMOVED
|
||
fputs_unlocked NEW: GNU ext.
|
||
fread_unlocked NEW: GNU ext.
|
||
freopen64 NEW: LFS
|
||
fseeko NEW: Unix98
|
||
fsetpos64 NEW: LFS
|
||
fstatfs64 NEW: LFS
|
||
fstatvfs NEW: Unix98
|
||
fstatvfs64 NEW: LFS
|
||
ftello NEW: Unix98
|
||
ftello64 NEW: LFS
|
||
ftruncate64 NEW: LFS
|
||
ftw64 NEW: LFS
|
||
fwrite_unlocked NEW: GNU ext.
|
||
gai_strerror NEW: IPv6
|
||
gamma_r REMOVED
|
||
gammaf_r REMOVED
|
||
gammal_r REMOVED
|
||
getchar_locked REMOVED
|
||
getdate NEW: Unix98
|
||
getdate_err NEW: Unix98
|
||
getdate_r NEW: GNU ext.
|
||
getmsg NEW: STREAMS
|
||
getnameinfo NEW: IPv6
|
||
getnetname NEW: Secure RPC
|
||
getpmsg NEW: STREAMS
|
||
getpt NEW: Unix98 PTY
|
||
getrlimit64 NEW: LFS
|
||
getutxent NEW: Unix98
|
||
getutxid NEW: Unix98
|
||
getutxline NEW: Unix98
|
||
glob64 NEW: GNU ext.
|
||
globfree64 NEW: GNU ext.
|
||
gnu_get_libc_release NEW: GNU ext.
|
||
gnu_get_libc_version NEW: GNU ext.
|
||
grantpt NEW: Unix98 PTY
|
||
host2netname NEW: Secure RPC
|
||
iconv NEW: iconv
|
||
iconv_close NEW: iconv
|
||
iconv_open NEW: iconv
|
||
if_freenameindex NEW: IPv6
|
||
if_indextoname NEW: IPv6
|
||
if_nameindex NEW: IPv6
|
||
if_nametoindex NEW: IPv6
|
||
in6addr_any NEW: IPv6
|
||
in6addr_loopback NEW: IPv6
|
||
inet6_isipv4mapped NEW: IPv6
|
||
isastream NEW: STREAMS
|
||
iswblank NEW: GNU ext.
|
||
key_decryptsession NEW: Secure RPC
|
||
key_decryptsession_pk NEW: Secure RPC
|
||
key_encryptsession NEW: Secure RPC
|
||
key_encryptsession_pk NEW: Secure RPC
|
||
key_gendes NEW: Secure RPC
|
||
key_get_conv NEW: Secure RPC
|
||
key_secretkey_is_set NEW: Secure RPC
|
||
key_setnet NEW: Secure RPC
|
||
key_setsecret NEW: Secure RPC
|
||
llrint NEW: ISO C 9x
|
||
llrintf NEW: ISO C 9x
|
||
llrintl NEW: ISO C 9x
|
||
llround NEW: ISO C 9x
|
||
llroundf NEW: ISO C 9x
|
||
llroundl NEW: ISO C 9x
|
||
log2 NEW: ISO C 9x
|
||
log2f NEW: ISO C 9x
|
||
log2l NEW: ISO C 9x
|
||
lrint NEW: ISO C 9x
|
||
lrintf NEW: ISO C 9x
|
||
lrintl NEW: ISO C 9x
|
||
lround NEW: ISO C 9x
|
||
lroundf NEW: ISO C 9x
|
||
lroundl NEW: ISO C 9x
|
||
lseek64 NEW: LFS
|
||
makecontext NEW: Unix98
|
||
mempcpy NEW: GNU ext.
|
||
mmap64 NEW: LFS
|
||
moncontrol REMOVED
|
||
modify_ldt NEW: kernel
|
||
nan NEW: ISO C 9x
|
||
nanf NEW: ISO C 9x
|
||
nanl NEW: ISO C 9x
|
||
nearbyint NEW: ISO C 9x
|
||
nearbyintf NEW: ISO C 9x
|
||
nearbyintl NEW: ISO C 9x
|
||
netname2host NEW: Secure RPC
|
||
netname2user NEW: Secure RPC
|
||
nexttoward NEW: ISO C 9x
|
||
nexttowardf NEW: ISO C 9x
|
||
nexttowardl NEW: ISO C 9x
|
||
nftw NEW: Unix98
|
||
nftw64 NEW: LFS
|
||
open64 NEW: LFS
|
||
passwd2des NEW: Secure RPC
|
||
pow10 NEW: GNU ext.
|
||
pow10f NEW: GNU ext.
|
||
pow10l NEW: GNU ext.
|
||
pread NEW: Unix98
|
||
pread64 NEW: LFS
|
||
printf_size NEW: GNU ext.
|
||
printf_size_info NEW: GNU ext.
|
||
profil_counter REMOVED
|
||
pthread_mutexattr_getkind_np REPLACED
|
||
pthread_mutexattr_setkind_np REPLACED
|
||
ptsname NEW: Unix98 PTY
|
||
ptsname_r NEW: Unix98 PTY
|
||
putc_locked REMOVED
|
||
putchar_locked REMOVED
|
||
putgrent NEW: GNU ext.
|
||
putmsg NEW: STREAMS
|
||
putpmsg NEW: STREAMS
|
||
pututxline NEW: Unix98
|
||
pwrite NEW: Unix98
|
||
pwrite64 NEW: LFS
|
||
readdir64 NEW: LFS
|
||
readdir64_r NEW: LFS
|
||
remquo NEW: ISO C 9x
|
||
remquof NEW: ISO C 9x
|
||
remquol NEW: ISO C 9x
|
||
round NEW: ISO C 9x
|
||
roundf NEW: ISO C 9x
|
||
roundl NEW: ISO C 9x
|
||
rtime NEW: GNU ext.
|
||
scalbln NEW: ISO C 9x
|
||
scalblnf NEW: ISO C 9x
|
||
scalblnl NEW: ISO C 9x
|
||
scandir64 NEW: LFS
|
||
sendfile NEW: kernel
|
||
setcontext NEW: Unix98
|
||
setrlimit64 NEW: LFS
|
||
setutxent NEW: Unix98
|
||
sighold NEW: Unix98
|
||
sigignore NEW: Unix98
|
||
sigqueue NEW: POSIX.1b
|
||
sigrelse NEW: Unix98
|
||
sigset NEW: POSIX.1b
|
||
sigtimedwait NEW: POSIX.1b
|
||
sigwaitinfo NEW: POSIX.1b
|
||
sincos NEW: GNU ext.
|
||
sincosf NEW: GNU ext.
|
||
sincosl NEW: GNU ext.
|
||
statfs64 NEW: LFS
|
||
statvfs NEW: Unix98
|
||
statvfs64 NEW: LFS
|
||
strcasestr NEW: GNU ext.
|
||
strtoimax NEW: ISO C 9x
|
||
strtoumax NEW: ISO C 9x
|
||
strverscmp NEW: GNU ext.
|
||
svcauthdes_stats NEW: Secure RPC
|
||
svcunix_create NEW: sunrpc etx
|
||
svcunixfd_create NEW: sunrpc ext
|
||
swapcontext NEW: Unix98
|
||
tcgetsid NEW: Unix98 PTY
|
||
tdestroy NEW: GNU ext.
|
||
tgamma NEW: ISO C 9x
|
||
tgammaf NEW: ISO C 9x
|
||
tgammal NEW: ISO C 9x
|
||
tmpfile64 NEW: LFS
|
||
trunc NEW: ISO C 9x
|
||
truncate64 NEW: LFS
|
||
truncf NEW: ISO C 9x
|
||
truncl NEW: ISO C 9x
|
||
umount2 NEW: kernel
|
||
unlockpt NEW: Unix98 PTY
|
||
updwtmpx NEW: Unix98
|
||
user2netname NEW: Secure RPC
|
||
utmpxname NEW: Unix98
|
||
versionsort NEW: GNU ext.
|
||
versionsort64 NEW: GNU ext.
|
||
waitid NEW: Unix98
|
||
wcscasecmp NEW: GNU ext.
|
||
wcsncasecmp NEW: GNU ext.
|
||
wcsnlen NEW: GNU ext.
|
||
wcstoimax NEW: ISO C 9x
|
||
wcstoll NEW: ISO C 9x
|
||
wcstoull NEW: ISO C 9x
|
||
wcstoumax NEW: ISO C 9x
|
||
wcswcs NEW: Unix98
|
||
wordexp NEW: POSIX.2
|
||
wordfree NEW: POSIX.2
|
||
write_profiling REMOVED
|
||
xdecrypt NEW: Secure RPC
|
||
xdr_authdes_cred NEW: Secure RPC
|
||
xdr_authdes_verf NEW: Secure RPC
|
||
xdr_cryptkeyarg NEW: Secure RPC
|
||
xdr_cryptkeyarg2 NEW: Secure RPC
|
||
xdr_cryptkeyres NEW: Secure RPC
|
||
xdr_getcredres NEW: Secure RPC
|
||
xdr_key_netstarg NEW: Secure RPC
|
||
xdr_key_netstres NEW: Secure RPC
|
||
xdr_keybuf NEW: Secure RPC
|
||
xdr_keystatus NEW: Secure RPC
|
||
xdr_netnamestr NEW: Secure RPC
|
||
xdr_sizeof NEW: Secure RPC
|
||
xdr_unixcred NEW: sunrpc ext
|
||
xencrypt NEW: Secure RPC
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
Version 2.0.6
|
||
|
||
* more bug fixes
|
||
|
||
|
||
Version 2.0.5
|
||
|
||
* more bug fixes
|
||
|
||
* inet_ntoa is thread-safe
|
||
|
||
* updwtmp is moved from libutil to libc
|
||
|
||
* rewrite of cbrt function
|
||
|
||
* update of timezone data
|
||
|
||
Version 2.0.4
|
||
|
||
* more bug fixes
|
||
|
||
Version 2.0.3
|
||
|
||
* more bug fixes
|
||
|
||
Version 2.0.2
|
||
|
||
* more bug fixes
|
||
|
||
* add atoll function
|
||
|
||
* fix complex problems in Berkeley DB code
|
||
|
||
* fix math functions
|
||
|
||
Version 2.0.1
|
||
|
||
* fixed lots of header problems (especially Linux/GNU specific)
|
||
|
||
* dynamic loader preserves all registers
|
||
|
||
* Roland McGrath provided support for handling of auxiliary objects in
|
||
the ELF dynamic loader.
|
||
|
||
* support for parallel builds is improved
|
||
|
||
Version 2.0
|
||
|
||
* GNU extensions are no longer declared by default. To enable them you
|
||
must define the macro `_GNU_SOURCE' in your program or compile with
|
||
`-D_GNU_SOURCE'.
|
||
|
||
* The library has changed from using GNU ld symbol aliases to using weak
|
||
symbols where available. The ELF object file format supports weak
|
||
symbols; GNU ld also supports weak symbols in the a.out format. (There
|
||
is also now support for other GNU ld extensions in ELF. Use the
|
||
`--with-elf' option to configure to indicate you have ELF, and
|
||
`--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
|
||
of many files which contained only symbol aliases, reducing the size of
|
||
the source and the compiled library; many other files were renamed to
|
||
less cryptic names previously occupied by the symbol alias files.
|
||
There is a new header file <elf.h> for programs which operate on
|
||
files in the ELF format.
|
||
|
||
* Converted to Autoconf version 2, so `configure' has more options.
|
||
Run `configure --help' to see the details.
|
||
|
||
* The library can now be configured to build profiling, highly-optimized
|
||
(but undebuggable), and/or shared libraries (ELF with GNU ld only). The
|
||
`--enable-profile', `--enable-omitfp', and `--enable-shared' options to
|
||
`configure' enable building these extra libraries. The shared library is
|
||
built by default when using both ELF and GNU ld. When shared libraries
|
||
are enabled, the new library `-ldl' is available for arbitrary run-time
|
||
loading of shared objects; its interface is defined in <dlfcn.h>. The
|
||
new header file <link.h> gives access to the internals of the run-time
|
||
dynamic linker, `ld.so'. The shell script `ldd' is similar to the
|
||
application of same name on other systems and it provides information
|
||
about dynamically linked binaries.
|
||
|
||
* The C library now provides the run-time support code for profiling
|
||
executables compiled with `-pg'. Programs can control the profiling code
|
||
through the interface in <sys/gmon.h>. The `gmon.out' files written by
|
||
the GNU C library can be read only by GNU `gprof' (from GNU binutils);
|
||
the support for this file format was contributed by David Mosberger-Tang.
|
||
|
||
* The math code has been replaced with a math library based on fdlibm from
|
||
Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
|
||
Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
|
||
functions. The math functions now reside in a separate library, so
|
||
programs using them will need to use `-lm' their linking commands.
|
||
|
||
* John C. Bowman contributed optimized ix87 assembler inline functions.
|
||
|
||
* Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
|
||
mechanism similar to that found in Solaris 2. This is now used for the
|
||
group, passwd, hosts, networks, services, protocols, rpc, ethers,
|
||
shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
|
||
file controls what services are used for each individual database. This
|
||
works by loading shared libraries with names specified in `nsswitch.conf',
|
||
so service modules can be changed or added at any time without even
|
||
relinking any program. Currently there are the file, db, and NIS based
|
||
NSS services available.
|
||
|
||
* The new functions `strtoq' and `strtouq' parse integer values from
|
||
strings, like `strtol' and `strtoul', but they return `long long int' and
|
||
`unsigned long long int' values, respectively (64-bit quantities).
|
||
|
||
* The new functions `strtof' and `strtold' parse floating-point values from
|
||
strings, like `strtod', but they return `float' and `long double' values,
|
||
respectively (on some machines `double' and `long double' are the same).
|
||
|
||
* Ulrich Drepper has contributed new implementations of the floating-point
|
||
printing and reading code used in the `printf' family of functions and
|
||
`strtod', `strtof', and `strtold'. These new functions are perfectly
|
||
accurate, and much faster than the old ones.
|
||
|
||
* The implementation of the POSIX locale model was completely rewritten by
|
||
Ulrich Drepper. This includes the new programs `localedef' and `locale'
|
||
to compile the POSIX locale definition.
|
||
|
||
* The former dummy implementations of the strcoll and strxfrm function are
|
||
now replaced by fully functional code contributed by Ulrich Drepper. The
|
||
collation information comes from the POSIX locale definitions.
|
||
|
||
* The new header <langinfo.h> defines an interface for accessing
|
||
various locale-dependent data (using the locale chosen with `setlocale').
|
||
|
||
* Ulrich Drepper has contributed a new suite of functions for operation on
|
||
wide-character and multibyte-character strings, in <wchar.h>;
|
||
and classification and case conversion of wide characters, in <wctype.h>.
|
||
These new functions are conforming to the ISO C, Amendement 1 specification.
|
||
|
||
* There is now a second implementation of the standard I/O library available.
|
||
It comes from GNU libg++ as was written by Per Bothner, heavily modified
|
||
by Hongjiu Lu and made thread safe by Ulrich Drepper.
|
||
|
||
* You can now use positional parameter specifications in format strings
|
||
for the `printf' and `scanf' families of functions. For example,
|
||
`printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
|
||
``Number 6, Mr Jones''. This is mainly useful when providing different
|
||
format strings for different languages, whose grammars may dictate
|
||
different orderings of the values being printed. To support this
|
||
feature, the interface for `register_printf_handler' has changed; see
|
||
the header file <printf.h> for details.
|
||
|
||
* The `printf' and `scanf' families of functions now understand a new
|
||
formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
|
||
to group numbers as indicated by the locale; for `scanf' and friends, this
|
||
says to accept as valid only a number with all the proper grouping
|
||
separators in the right places. In the default "C" locale, numbers are
|
||
not grouped; but locales for specific countries will define the usual
|
||
conventions (i.e. separate thousands with `,' in the US locale).
|
||
|
||
* The pgrp functions have been regularized, slightly incompatibly but much
|
||
less confusingly. The core functions are now `getpgid' and `setpgid',
|
||
which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
|
||
argument) and BSD `setpgrp' (identical to `setpgid') functions are
|
||
provided for compatibility. There is no longer an incompatible `getpgrp'
|
||
with an argument declared under _BSD_SOURCE; no BSD code uses it.
|
||
|
||
* The new header file <fts.h> and suite of functions simplify programs that
|
||
operate on directory trees. This code comes from 4.4 BSD.
|
||
|
||
* The resolver code has been updated from the BIND 4.9.5-P1 release.
|
||
Parts of the code were heavily modified by Ulrich Drepper to fit in the
|
||
NSS scheme used in glibc.
|
||
|
||
* There is a new malloc debugging hook `__memalign_hook'.
|
||
|
||
* There are new typedefs `ushort' for `unsigned short int' and `uint' for
|
||
`unsigned int' in <sys/types.h>. These are for compatibility only and
|
||
their use is discouraged.
|
||
|
||
* The `-lmcheck' library to enable standard malloc debugging hooks is now
|
||
done differently, so that it works even without GNU ld.
|
||
|
||
* New function `euidaccess' checks allowed access to a file like `access',
|
||
but using the effective IDs instead of the real IDs.
|
||
|
||
* The time zone data files have been updated for the latest and greatest
|
||
local time conventions of the countries of the world.
|
||
|
||
* The new function `dirfd' extracts the file descriptor used by a DIR stream;
|
||
see <dirent.h>.
|
||
|
||
* The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
|
||
for formatting floating-point numbers. They are provided only for
|
||
compatibility; new programs should use `sprintf' instead. There are
|
||
also equivalent function for the `long double' floating-point type and
|
||
all functions also exist in a reentrant form.
|
||
|
||
* The new auxiliary library `-lutil' from 4.4 BSD contains various
|
||
functions for maintaining the login-record files (primarily of use to
|
||
system programs such as `login'), and convenient functions for
|
||
allocating and initializing a pseudo-terminal (pty) device.
|
||
|
||
* Ulrich Drepper has contributed new support for System V style
|
||
shared memory and IPC on systems that support it.
|
||
|
||
* Ulrich Drepper has contributed several miscellaneous new functions found
|
||
in System V: The `hsearch' family of functions provide an effective
|
||
implementation of hash tables; `a64l' and `l64a' provide a very simple
|
||
binary to ASCII mapping; `drand48' and friends provide a 48-bit random
|
||
number generator.
|
||
|
||
* Ulrich Drepper has contributed new reentrant counterparts for the
|
||
`random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
|
||
|
||
* Ulrich Drepper has contributed new, highly-optimized versions of several
|
||
string functions for the i486/Pentium family of processors.
|
||
|
||
* Ulrich Drepper has updated the Linux-specific code, based largely
|
||
on work done in Hongjiu Lu's version of GNU libc for Linux.
|
||
The GNU library now supports Linux versions 2.0.10 and later,
|
||
using the ELF object file format (i[3456]86-*-linux).
|
||
|
||
* Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
|
||
|
||
* David Mosberger-Tang and Richard Henderson have ported the C library
|
||
to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
|
||
dynamic linking support for ELF/Alpha.
|
||
|
||
* Richard Henderson contributed several Alpha optimized assembler function
|
||
for arithmetic and string handling.
|
||
|
||
* Ulrich Drepper has contributed a new set of message catalog functions to
|
||
support multiple languages using the <libintl.h> interface, for use with
|
||
his new package GNU gettext. Translation volunteers have contributed
|
||
catalogs of the library's messages in Spanish, German, and Korean.
|
||
|
||
* For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
|
||
program and the `catgets' function for reading the catalog files it
|
||
creates. (The <libintl.h> interface is preferred; we include the
|
||
<nl_types.h> interface using `catgets' only for source compatibility with
|
||
programs already written to use it.)
|
||
|
||
* New header file <values.h> gives SVID-compatible names for <limits.h>
|
||
constants.
|
||
|
||
* Various new macros, declarations, and small header files for compatibility
|
||
with 4.4 BSD.
|
||
|
||
* New function `group_member' is a convenient way to check if a process has
|
||
a given effective group ID.
|
||
|
||
* When using GCC 2.7 and later, the socket functions are now declared in a
|
||
special way so that passing an argument of type `struct sockaddr_in *',
|
||
`struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
|
||
`struct sockaddr *' type, does not generate a type-clash warning.
|
||
|
||
* New function `error' declared in header file <error.h> is a convenient
|
||
function for printing error messages and optionally exiting; this is the
|
||
canonical function used in GNU programs. The new functions `err', `warn',
|
||
and friends in header file <err.h> are the canonical 4.4 BSD interface for
|
||
doing the same thing.
|
||
|
||
* The <glob.h> interface has several new flags from 4.4 BSD that extend the
|
||
POSIX.2 `glob' function to do ~ and {...} expansion.
|
||
|
||
* New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
|
||
`clearenv' which is used in POSIX.9 is also available.
|
||
|
||
* New function `getsid' returns session ID number on systems that support it.
|
||
|
||
* We have incorporated the 4.4 BSD `db' library (version 1.85). New header
|
||
files <db.h> and <mpool.h> provide a rich set of functions for several
|
||
types of simple databases stored in memory and in files, and <ndbm.h> is
|
||
an old `ndbm'-compatible interface using the `db' functions. Link with
|
||
`-ldb' to get these functions.
|
||
|
||
* New macro `strdupa' copies a string like `strdup', but uses local stack
|
||
space from `alloca' instead of dynamic heap space from `malloc'.
|
||
|
||
* New function `strnlen' is like `strlen' but searches only a given maximum
|
||
number of characters for the null terminator. `stpncpy', `strndup' and
|
||
`strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
|
||
function.
|
||
|
||
* New function `statfs' in header <sys/statfs.h>.
|
||
|
||
* The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
|
||
provide convenient functions for operating on blocks of null-terminated
|
||
strings.
|
||
|
||
* A new suite of functions in <utmp.h> handle all the details of reading
|
||
and writing the utmp file.
|
||
|
||
* An implementation of the NIS/YP(tm) based NSS service was contributed by
|
||
Thorsten Kukuk.
|
||
|
||
* Paul Eggert and Ulrich Drepper modified the `strftime' function to be
|
||
completely POSIX compliant and also implemented the extended functionality
|
||
to handle alternate digit representation and alternate era date formats.
|
||
|
||
* Ulrich Drepper provided an implementation of the `strptime' function
|
||
defined in XPG4.2 which transforms a string into a `struct tm' value.
|
||
|
||
* Paul Eggert provided the tzselect shell script as part of the timezone
|
||
code. The shell script makes it easy to select the correct timezone
|
||
specification.
|
||
|
||
* The implementation of the malloc family of functions is completely replaced
|
||
by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
|
||
The implementation uses the mmap function (if available) and it is
|
||
optimized for the use in multi threaded programs.
|
||
|
||
* Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
|
||
functions. This new functionality is usable by specifying a special
|
||
salt string and it is compatible with implementation on *BSD systems.
|
||
|
||
* Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
|
||
`getsubopt' to handle second level command line options, `bsd_signal'
|
||
to access BSD style `signal' functionality, the obsolete `regexp' style
|
||
expression matcher.
|
||
|
||
* the `lchown' function is available on system which support this
|
||
functionality.
|
||
|
||
* The implementation of the shadow password handling function was contributed
|
||
by Ulrich Drepper.
|
||
|
||
* David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
|
||
|
||
* POSIX.1g support was added. The <sys/select.h> header is available,
|
||
`isfdtype' and `pselect' are implemented. Craig Metz contributed an
|
||
implementation of `getaddrinfo'.
|
||
|
||
Version 1.09
|
||
|
||
* For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
|
||
|
||
* New header file <fstab.h> and new functions `getfsspec', `getfsent' and
|
||
friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
|
||
|
||
* The new function `daemon' from 4.4 BSD is useful for server programs that
|
||
want to put themselves in the background.
|
||
|
||
* Joel Sherrill has contributed support for several standalone boards that
|
||
run without an operating system.
|
||
|
||
* `printf', `scanf' and friends now accept a `q' type modifier for long
|
||
long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
|
||
|
||
* All of the code taken from BSD (notably most of the math and networking
|
||
routines) has been updated from the BSD 4.4-Lite release.
|
||
|
||
* The resolver code has been updated from the BIND-4.9.3-BETA9 release.
|
||
|
||
* The new functions `getdomainname' and `setdomainname' fetch or change the
|
||
YP/NIS domain name. These are system calls which exist on systems which
|
||
have YP (aka NIS).
|
||
|
||
* The time zone data files have been updated for the latest international
|
||
conventions.
|
||
|
||
* The SunRPC programs `portmap' and `rpcinfo' are now installed in
|
||
$(sbindir) (usually /usr/local/sbin) instead of $(bindir).
|
||
|
||
Version 1.08
|
||
|
||
* The C library now includes support for Sun RPC, from Sun's free
|
||
RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
|
||
are included. (There is still no support for YP.)
|
||
|
||
* Tom Quinn has contributed a port of the C library to SGI machines running
|
||
Irix 4 (mips-sgi-irix4).
|
||
|
||
* The new `lockf' function is a simplified interface to the locking
|
||
facilities of `fcntl', included for compatibility.
|
||
|
||
* New time functions `timegm', `timelocal', and `dysize' for compatibility.
|
||
|
||
* New header file <sys/timeb.h> and new function `ftime' for compatibility.
|
||
|
||
* New header files <poll.h> and <sys/poll.h> and new function `poll' for
|
||
compatibility.
|
||
|
||
* The error message printed by `assert' for a failed assertion now includes
|
||
the name of the program (if using GNU ld) and the name of the calling
|
||
function (with versions of GCC that support this).
|
||
|
||
* The `psignal' function is now declared in <signal.h>, not <stdio.h>.
|
||
|
||
* The library now includes the <sys/mman.h> header file and memory
|
||
management functions `mmap', `munmap', `mprotect', `msync', and
|
||
`madvise', on systems that support those facilities.
|
||
|
||
* The interface for `mcheck' has changed slightly: the function called to
|
||
abort the program when an allocation inconsistency is detected now takes
|
||
an argument that indicates the type of failure. The new function
|
||
`mprobe' lets you request a consistency check for a particular block at
|
||
any time (checks are normally done only when you call `free' or `realloc'
|
||
on a block).
|
||
|
||
* It is now possible to easily cross-compile the C library, building on one
|
||
system a library to run on another machine and/or operating system. All
|
||
you need to do is set the variable `HOST_CC' in `configparms' to the
|
||
native compiler for programs to run on the machine you are building on (a
|
||
few generator programs are used on Unix systems); set `CC' to the
|
||
cross-compiler.
|
||
|
||
* The new function `fexecve' (only implemented on the GNU system) executes
|
||
a program file given a file descriptor already open on the file.
|
||
|
||
Version 1.07
|
||
|
||
* Brendan Kehoe has contributed most of a port to the DEC Alpha
|
||
running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
|
||
|
||
* You can set the variable `libprefix' in `configparms' to specify a prefix
|
||
to be prepended to installed library files; this makes it easy to install
|
||
the GNU C library to be linked as `-lgnuc' or whatever.
|
||
|
||
* The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
|
||
copies a limited number of characters from a string, and returns the
|
||
address of the last character written.
|
||
|
||
* You no longer need to check for whether the installed `stddef.h' is
|
||
compatible with the GNU C library. configure now checks for you.
|
||
|
||
* You can now define a per-stream `fileno' function to convert the
|
||
stream's cookie into an integral file descriptor.
|
||
|
||
* ``malloc (0)'' no longer returns a null pointer. Instead, it
|
||
allocates zero bytes of storage, and returns a unique pointer which
|
||
you can pass to `realloc' or `free'. The behavior is undefined if
|
||
you dereference this pointer.
|
||
|
||
* The C library now runs on Sony NEWS m68k machines running either
|
||
NewsOS 3 or NewsOS 4.
|
||
|
||
* The new `syscall' function is a system-dependent primitive function
|
||
for invoking system calls. It has the canonical behavior on Unix
|
||
systems, including unreliable return values for some calls (such as
|
||
`pipe', `fork' and `getppid').
|
||
|
||
* The error code `EWOULDBLOCK' is now obsolete; it is always defined
|
||
to `EAGAIN', which is the preferred name. On systems whose kernels
|
||
use two distinct codes, the C library now translates EWOULDBLOCK to
|
||
EAGAIN in every system call function.
|
||
|
||
Version 1.06
|
||
|
||
* The GNU C Library Reference Manual is now distributed with the library.
|
||
`make dvi' will produce a DVI file of the printed manual.
|
||
`make info' will produce Info files that you can read on line using C-h i
|
||
in Emacs or the `info' program.
|
||
Please send comments on the manual to bug-glibc-manual@gnu.org.
|
||
|
||
* The library now supports SVR4 on i386s (i386-unknown-sysv4).
|
||
|
||
* Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
|
||
|
||
* Jason Merrill has contributed a port to the Sequent Symmetry running
|
||
Dynix version 3 (i386-sequent-dynix).
|
||
|
||
* The library has been ported to i386s running SCO 3.2.4 (also known as SCO
|
||
ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
|
||
|
||
* New function `memory_warnings' lets you arrange to get warnings when
|
||
malloc is running out of memory to allocate, like Emacs gives you.
|
||
|
||
* The C library now contains the relocating allocator used in Emacs 19 for
|
||
its editing buffers. This allocator (ralloc) minimizes allocation
|
||
overhead and fragmentation by moving allocated regions around whenever it
|
||
needs to. You always refer to a ralloc'd region with a "handle" (a
|
||
pointer to a pointer--an object of type `void **').
|
||
|
||
* There is a new `printf' format: `%m' gives you the string corresponding
|
||
to the error code in `errno'.
|
||
|
||
* In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
|
||
or `%[' conversion, but instead of filling in a fixed-sized buffer you
|
||
pass, the `a' modifier says to fill in a `char **' you pass with a
|
||
malloc'd string.
|
||
|
||
* The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
|
||
`FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
|
||
name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
|
||
|
||
* `mkstemp' is a traditional Unix function to atomically create and open a
|
||
uniquely-named temporary file.
|
||
|
||
Version 1.05
|
||
|
||
* The standard location for the file that says what the local timezone is
|
||
has changed again. It is now `/usr/local/etc/localtime' (or more
|
||
precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
|
||
|
||
* The distribution no longer contains any files with names longer than 14
|
||
characters.
|
||
|
||
* `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
|
||
These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
|
||
|
||
* New functions `ttyslot' and `syslog' from 4.4 BSD.
|
||
|
||
Version 1.04
|
||
|
||
* The configuration process has changed quite a bit. The `configure'
|
||
script is now used just like the configuration scripts for other GNU
|
||
packages. The `sysdeps' directory hierarchy is much rearranged.
|
||
The file `INSTALL' explains the new scheme in detail.
|
||
|
||
* The header files no longer need to be processed into ANSI C and
|
||
traditional C versions. There is just one set of files to install, and
|
||
it will work with ANSI or old C compilers (including `gcc -traditional').
|
||
|
||
* Brendan Kehoe and Ian Lance Taylor have ported the library to the
|
||
MIPS DECStation running Ultrix 4.
|
||
|
||
* The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
|
||
Tom Quinn contributed the initial code. The GNU C library can NOT yet be
|
||
made itself into a shared library.
|
||
|
||
* Yet further improved support for the i386, running 4.3 BSD-like systems
|
||
(such as Mach 3 with the Unix single-server), or System V.
|
||
|
||
* New function `strncasecmp' to do case-insensitive string comparison
|
||
with limited length.
|
||
|
||
* New function `strsep' is a reentrant alternative to `strtok'.
|
||
|
||
* New functions `scandir' and `alphasort' for searching directories.
|
||
|
||
* New function `setenv' is a better interface to `putenv'.
|
||
|
||
* Ian Lance Taylor has contributed an implementation of the SVID `ftw'
|
||
function for traversing a directory tree.
|
||
|
||
* The GNU obstack package is now also part of the C library.
|
||
The new function `open_obstack_stream' creates a stdio stream that
|
||
writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
|
||
formatted output directly to an obstack.
|
||
|
||
* Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
|
||
cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
|
||
|
||
* `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
|
||
|
||
* The new functions `strfry' and `memfrob' do mysterious and wonderful
|
||
things to your strings.
|
||
|
||
* There are some new test programs: test-fseek, testmb, and testrand.
|
||
|
||
* Some work has been done to begin porting the library to 4.4 BSD and Linux.
|
||
These ports are not finished, but are a good starting place for really
|
||
supporting those systems.
|
||
|
||
* `/etc/localtime' is now the standard location for the file that says what
|
||
the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
|
||
This follows the general principle that `/etc' is the place for all local
|
||
configuration files.
|
||
|
||
* The C library header files now use `extern "C"' when used by the C++
|
||
compiler, so the C library should now work with C++ code.
|
||
|
||
* The header file <bstring.h> is gone. <string.h> now declares bcopy,
|
||
bcmp, bzero, and ffs. (Update: nowadays these functions are declared
|
||
in <strings.h>.)
|
||
|
||
* Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
|
||
function which uses the `merge sort' algorithm, and is said to be
|
||
significantly faster than the old GNU `qsort' function. Merge sort is
|
||
now the standard `qsort' function. The new algorithm can require a lot
|
||
of temporary storage; so, the old sorting function is called when the
|
||
required storage is not available.
|
||
|
||
* The C library now includes Michael Glad's Ultra Fast Crypt, which
|
||
provides the Unix `crypt' function, plus some other entry points.
|
||
|
||
* The code and header files taken from 4.4 BSD have been updated with the
|
||
latest files released from Berkeley.
|
||
|
||
----------------------------------------------------------------------
|
||
Copyright information:
|
||
|
||
Copyright (C) 1992-2018 Free Software Foundation, Inc.
|
||
|
||
Permission is granted to anyone to make or distribute verbatim copies
|
||
of this document as received, in any medium, provided that the
|
||
copyright notice and this permission notice are preserved,
|
||
thus giving the recipient permission to redistribute in turn.
|
||
|
||
Permission is granted to distribute modified versions
|
||
of this document, or of portions of it,
|
||
under the above conditions, provided also that they
|
||
carry prominent notices stating who last changed them.
|
||
|
||
Local variables:
|
||
version-control: never
|
||
fill-column: 76
|
||
End:
|