The current tests don't test the functionality of realloc in detail.
Add a new test for realloc that exercises some of the corner cases
that are not otherwise tested.
ChangeLog:
2013-09-09 Will Newton <will.newton@linaro.org>
* malloc/Makefile: Add tst-realloc to tests.
* malloc/tst-realloc.c: New file.
[BZ #1349]
malloc_usable_size returns the usable size in an allocated chunk,
which may be >= the requested size. In the case of MALLOC_CHECK_ being
exported to > 0 however, only the requested size is usable, since a
magic value is written at the end of the request size to trap writes
beyond request bounds. Hence, when MALLOC_CHECK_ is exported to > 0,
malloc_usable_size() should return the request size.
obstack calls several callbacks, so on i?86 it'd better be compiled
without -mpreferred-stack-boundary=2, otherwise the callbacks are called
with misaligned stack.
(public_sET_STATe): If ms->version < 3, put all chunks into
unsorted chunks and clear {fd,bk}_nextsize fields of largebin
chunks.
* malloc/malloc.c [MALLOC_DEBUG]: Revert 2007-05-13 changes.
* malloc/hooks.c: Likewise.
* malloc/arena.c: Likewise.
* malloc/malloc.c (do_check_malloc_state): Don't assert
n_mmaps is not greater than n_mmaps_max. This removes the need
for the previous change.
* malloc/Makefile (CFLAGS-malloc.c): Revert accidental
2007-05-07 commit.
(new_heap): Initialize mprotect_size.
(grow_heap): When growing, only mprotect from mprotect_size till
new_size if mprotect_size is smaller. When shrinking, use PROT_NONE
MMAP for __libc_enable_secure only, otherwise use MADV_DONTNEED.
2007-05-07 Ulrich Drepper <drepper@redhat.com>
Jakub Jelinek <jakub@redhat.com>
* malloc/arena.c (heap_info): Add mprotect_size field, adjust pad.
(new_heap): Initialize mprotect_size.
(grow_heap): When growing, only mprotect from mprotect_size till
new_size if mprotect_size is smaller. When shrinking, use PROT_NONE
MMAP for __libc_enable_secure only, otherwise use MADV_DONTNEED.
* malloc/arena.c (ptmalloc_lock_all): If global lock already taken
by the same thread, just bump the counter.
(ptmalloc_unlock_all): If counter for recursive locks hasn't reached
zero, don't do anything else.
* malloc/Makefile (tests): Add tst-mallocfork.
* malloc/tst-mallocfork.c: New file.
2005-08-17 Robert Love <rml@novell.com>
* sysdeps/unix/sysv/linux/sys/inotify.h: Add IN_MOVE_SELF event.
2005-08-19 Bruno Haible <bruno@clisp.org>
* intl/localealias.c (read_alias_file): In case of failure, close the
file descriptor and sort the array before returning.
2005-08-19 Ulrich Drepper <drepper@redhat.com>
* malloc/Makefile: Link libmemusage.so with ld.so.
* malloc/memusage.c: Use atomic operations for all counter and size
computations. Handle thread stacks.
* sysdeps/generic/memusage.h: Define memusage_cntr_t and
memusage_size_t.
* sysdeps/i386/i686/memusage.h: New file.
* include/atomic.h: Define atomic_max and atomic_min.
* debug/tst-chk1.c: Add tests for mbstowcs and wcstombs.
(_dl_close): If called recursively, just remember GC needs to be rerun
and decrease l_direct_opencount. Avoid GC if l_direct_opencount
decreased to 1. Rerun GC at the end if any destructor unloaded some
additional libraries.
* elf/Makefile: Add rules to build and run unload6 test.
* elf/unload6.c: New test.
* elf/unload6mod1.c: New file.
* elf/unload6mod2.c: New file.
* elf/unload6mod3.c: New file.
* malloc/hooks.c (mem2chunk_check): Add magic_p argument, set *magic_p
if magic_p is not NULL.
(top_check): Invoke MALLOC_FAILURE_ACTION if MORECORE failed.
(malloc_check): Fail if sz == -1.
(free_check): Adjust mem2chunk_check caller.
(realloc_check): Likewise. Fail if bytes == -1. If bytes == 0 and
oldmem != NULL, call free_check and return NULL. If reallocating
and returning NULL, invert magic byte again to make oldmem valid
region for further checking.
(memalign_check): Fail if bytes == -1.
* malloc/Makefile: Add rules to build and run tst-mcheck.
* malloc/tst-mcheck.c: New test.
2003-09-27 Wolfram Gloger <wg@malloc.de>
* malloc/malloc.c: Include <malloc-machine.h> earlier instead of
"thread-m.h", so that default parameters can be overridden in a
system-specific malloc-machine.h. Remove extra ; from extern "C"
closing brace.
* sysdeps/generic/malloc-machine.h: New file.
* sysdeps/mach/hurd/malloc-machine.h: New file.
* malloc/thread-m.h: Removed.
* malloc/Makefile: Remove CFLAGS-malloc.c parameter addition, it
is in sysdeps/generic/malloc-machine.h now.
* elf/dl-reloc.c (_dl_allocate_static_tls): Move definition of
variables only used if TLS_TCB_AT_TP is defined into the #if
branch.
* sysdeps/unix/sysv/linux/Makefile: Remove db2 directory handling.
* malloc/Makefile (CFLAGS-malloc.c): Define DEFAULT_TOP_PAD to 128k.
* sysdeps/unix/sysv/linux/Makefile (CFLAGS-malloc.c): Add to, not
replace.
* malloc/thread-freeres.c: New file.
* malloc/Makefile (aux): Add it.
* sunrpc/Versions (GLIBC_PRIVATE): Removed.
* sunrpc/rpc_thread.c (__rpc_thread_destroy): Put in special section
"__libc_thread_freeres_fn" and add to __libc_thread_subfreeres set.
* sysdeps/unix/sysv/linux/i386/geteuid.c (__geteuid): Typo fix.
* sysdeps/unix/sysv/linux/i386/getgid.c (__getgid): Typo fix.
2003-02-21 Roland McGrath <roland@frob.com>
* sysdeps/mach/hurd/opendir.c (__opendir): Use O_NONBLOCK in open.
* iconvdata/Makefile (tests): Add bug-iconv3 only if
[$(have-thread-library) = yes].
file-specific variable override so it compiles properly when using
--with-headers.
* NEWS: Added item for powerpc64-linux port.
* include/libc-symbols.h [HAVE_ASM_GLOBAL_DOT_NAME]
(C_SYMBOL_DOT_NAME): Insure that C_SYMBOL_DOT_NAME works for
various gcc versions. Dot names required for powerpc64.
[HAVE_ASM_GLOBAL_DOT_NAME] (_weak_extern): Add .weakext '.'ed symbol.
[HAVE_ASM_GLOBAL_DOT_NAME] (strong_alias): Add .global
C_SYMBOL_DOT_NAME(alias).
[HAVE_ASM_GLOBAL_DOT_NAME] (strong_data_alias): New macro. Same as
original strong_alias macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (weak_alias): Add .weakext/.weak
C_SYMBOL_DOT_NAME(alias).
[HAVE_ASM_GLOBAL_DOT_NAME] (_symbol_version): Add .symver '.'ed name.
[HAVE_ASM_GLOBAL_DOT_NAME] (_default_symbol_version): Add .symver
'.'ed name.
Add comments on libc_hidden_data_def and libc_hidden_data_weak usage.
[HAVE_ASM_GLOBAL_DOT_NAME] (hidden_dot_def1): New macro. Generate
.global C_SYMBOL_DOT_NAME(alias). Otherwise an empty macro.
(hidden_def): Append hidden_dot_def1 macro to definition.
(hidden_ver): Append hidden_dot_def1 macro to definition.
(hidden_data_def): New macro. Same as original hidden_def macro.
(hidden_data_ver): New macro. Same as original hidden_ver macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (hidden_dot_weak1): New macro. Generate
.weakext C_SYMBOL_DOT_NAME(alias). Otherwise an empty macro.
(hidden_weak): Append hidden_dot_weak1 macro to definition.
(hidden_data_weak): New macro. Same as original hidden_weak macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (HIDDEN_JUMPTARGET): Define as .__GI_name.
Otherwise defined as __GI_name.
(libc_hidden_data_def): New macro. Use hidden_data_def.
(libc_hidden_data_weak): New macro. Use hidden_data_weak.
(libc_hidden_data_ver): New macro. Use hidden_data_ver.
(rtld_hidden_data_def): New macro. Use hidden_data_def.
(rtld_hidden_data_weak): New macro. Use hidden_data_weak.
(rtld_hidden_data_ver): New macro. Use hidden_data_ver.
(libm_hidden_data_def): New macro. Use hidden_data_def.
(libm_hidden_data_weak): New macro. Use hidden_data_weak.
(libm_hidden_data_ver): New macro. Use hidden_data_ver.
* inet/in6_addr.c: Replace libc_hidden_def with libc_hidden_data_def.
2002-01-18 Wolfram Gloger <wg@malloc.de>
* malloc/malloc.c: Rewrite, adapted from Doug Lea's malloc-2.7.0.c.
* malloc/malloc.h: Likewise.
* malloc/arena.c: New file.
* malloc/hooks.c: New file.
* malloc/tst-mallocstate.c: New file.
* malloc/Makefile: Add new testcase tst-mallocstate.
Add arena.c and hooks.c to distribute. Fix commented CPPFLAGS.
2002-01-28 Ulrich Drepper <drepper@redhat.com>
* stdlib/msort.c: Remove last patch. The optimization violates the
same rule which qsort.c had problems with.
2002-01-27 Paul Eggert <eggert@twinsun.com>
* stdlib/qsort.c (_quicksort): Do not apply the comparison function
to a pivot element that lies outside the array to be sorted, as
ISO C99 requires that the comparison function be called only with
addresses of array elements [PR libc/2880].
2001-08-29 Ulrich Drepper <drepper@redhat.com>
* nis/nis_findserv.c (__nis_findfastest): Don't fail if reply received
first is from a previous call.
Patch by Alexander Belopolsky <alexb@rentec.com> for [PR libc/3670].
2001-08-29 Andreas Schwab <schwab@suse.de>
* sysdeps/ia64/fpu/libm-test-ulps: Updated.
2001-08-25 Maciej W. Rozycki <macro@ds2.pg.gda.pl>
* config.make.in (INSTALL_SCRIPT): Define.
* Makeconfig (INSTALL_SCRIPT): Define.
* Makerules (do-install-script): New macro to install scripts using
INSTALL_SCRIPT.
(install-bin-script): New rule to install scripts with
do-install-script.
(install-bin-script-nosubdir): New rule.
(install-no-libc.a-nosubdir): Add install-bin-script-nosubdir.
(distinfo-vars): Add $(install-bin-script).
* Rules (others): Likewise.
* Makefile (glibcbug): Install with install-bin-script.
* debug/Makefile (xtrace): Likewise.
(catchsegv): Likewise.
* elf/Makefile (ldd): Likewise.
* malloc/Makefile (mtrace): Likewise.
* timezone/Makefile (tzselect): Likewise.
2001-08-29 H.J. Lu <hjl@gnu.org>
* sysdeps/mips/dl-machine.h (__dl_runtime_resolve): Pass
ELF_RTYPE_CLASS_PLT, instead of R_MIPS_REL32, to
_dl_lookup_versioned_symbol () and _dl_lookup_symbol ().
Add it to LDFLAGS.so, LDFLAGS-rtld, and +link.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* sysdeps/unix/sysv/linux/cris/Dist: New file.
* sysdeps/unix/sysv/linux/cris/Makefile: New file.
* sysdeps/unix/sysv/linux/cris/_G_config.h: New file.
* sysdeps/unix/sysv/linux/cris/bits/fcntl.h: New file.
* sysdeps/unix/sysv/linux/cris/bits/mman.h: New file.
* sysdeps/unix/sysv/linux/cris/bits/resource.h: New file.
* sysdeps/unix/sysv/linux/cris/brk.c: New file.
* sysdeps/unix/sysv/linux/cris/chown.c: New file.
* sysdeps/unix/sysv/linux/cris/clone.S: New file.
* sysdeps/unix/sysv/linux/cris/fchown.c: New file.
* sysdeps/unix/sysv/linux/cris/fcntl.c: New file.
* sysdeps/unix/sysv/linux/cris/fxstat.c: New file.
* sysdeps/unix/sysv/linux/cris/getegid.c: New file.
* sysdeps/unix/sysv/linux/cris/geteuid.c: New file.
* sysdeps/unix/sysv/linux/cris/getgid.c: New file.
* sysdeps/unix/sysv/linux/cris/getgroups.c: New file.
* sysdeps/unix/sysv/linux/cris/getresgid.c: New file.
* sysdeps/unix/sysv/linux/cris/getresuid.c: New file.
* sysdeps/unix/sysv/linux/cris/getrlimit.c: New file.
* sysdeps/unix/sysv/linux/cris/getrlimit64.c: New file.
* sysdeps/unix/sysv/linux/cris/getuid.c: New file.
* sysdeps/unix/sysv/linux/cris/lchown.c: New file.
* sysdeps/unix/sysv/linux/cris/lockf64.c: New file.
* sysdeps/unix/sysv/linux/cris/lxstat.c: New file.
* sysdeps/unix/sysv/linux/cris/mmap.S: New file.
* sysdeps/unix/sysv/linux/cris/mmap64.S: New file.
* sysdeps/unix/sysv/linux/cris/msgctl.c: New file.
* sysdeps/unix/sysv/linux/cris/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/cris/register-dump.h: New file.
* sysdeps/unix/sysv/linux/cris/semctl.c: New file.
* sysdeps/unix/sysv/linux/cris/setegid.c: New file.
* sysdeps/unix/sysv/linux/cris/seteuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setfsgid.c: New file.
* sysdeps/unix/sysv/linux/cris/setfsuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setgid.c: New file.
* sysdeps/unix/sysv/linux/cris/setgroups.c: New file.
* sysdeps/unix/sysv/linux/cris/setregid.c: New file.
* sysdeps/unix/sysv/linux/cris/setresgid.c: New file.
* sysdeps/unix/sysv/linux/cris/setresuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setreuid.c: New file.
* sysdeps/unix/sysv/linux/cris/setrlimit.c: New file.
* sysdeps/unix/sysv/linux/cris/setuid.c: New file.
* sysdeps/unix/sysv/linux/cris/shmctl.c: New file.
* sysdeps/unix/sysv/linux/cris/socket.S: New file.
* sysdeps/unix/sysv/linux/cris/sys/ucontext.h: New file.
* sysdeps/unix/sysv/linux/cris/syscall.S: New file.
* sysdeps/unix/sysv/linux/cris/sysdep.S: New file.
* sysdeps/unix/sysv/linux/cris/sysdep.h: New file.
* sysdeps/unix/sysv/linux/cris/vfork.S: New file.
* sysdeps/unix/sysv/linux/cris/xstat.c: New file.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* sysdeps/cris/Dist: New file.
* sysdeps/cris/Implies: New file.
* sysdeps/cris/Makefile: New file.
* sysdeps/cris/__longjmp.S: New file.
* sysdeps/cris/_mcount.S: New file.
* sysdeps/cris/bits/endian.h: New file.
* sysdeps/cris/bits/setjmp.h: New file.
* sysdeps/cris/bits/string.h: New file.
* sysdeps/cris/dl-machine.h: New file.
* sysdeps/cris/elf/start.S: New file.
* sysdeps/cris/machine-gmon.h: New file.
* sysdeps/cris/memcopy.h: New file.
* sysdeps/cris/memusage.h: New file.
* sysdeps/cris/setjmp.S: New file.
* sysdeps/cris/sysdep.h: New file.
* sysdeps/cris/wordcopy.c: New file.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* elf/elf.h: Add new relocations for CRIS.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* shlib-versions: Add cases for Linux on CRIS.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* configure.in (ASM_LINE_SEP tests): Handle CRIS assembly, with
';' for comments and '@' for line separator.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* sysdeps/unix/sysv/linux/hppa/sysdep.h (INLINE_SYSCALL): Fix
typo; s/==/=/ for assignment.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* malloc/Makefile: Correct comment; mtrace is Perl, not AWK.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* iconv/gconv_simple.c (internal_ucs4_loop_unaligned): Check for
empty input before checking full output.
2001-04-08 Hans-Peter Nilsson <hp@axis.com>
* iconv/gconv.c (__gconv): Don't derefer parameter cd before
checking if == -1L.
2001-04-08 Ulrich Drepper <drepper@redhat.com>
* inet/rexec.c (rexec_af): Avoid calling perror with errno being set.
* malloc/Makefile: Run tst-mtrace only with shared libs.
* stdio-common/Makefile: Run unbputc and tst-printf tests only
with shared libs.
2000-07-10 Maciej W. Rozycki <macro@ds2.pg.gda.pl>
* sysdeps/mips/dl-machine.h (elf_machine_runtime_link_map): Verify
that gpreg really points to the GOT section of the calling object.
Scan all PT_LOAD segments of objects for stub_pc, instead of only
checking a start address of first one.
Fix typos.
* sysdeps/mips/mips64/dl-machine.h (elf_machine_runtime_link_map):
Likewise.
* sysdeps/mips/dl-machine.h (__dl_runtime_resolve): Fix a typo.
2000-07-10 Andreas Jaeger <aj@suse.de>
