[BZ #10871]
* localedata/locales/ru_RU (mon): Rename to...
(alt_mon): This.
(abmon): Rename to...
(ab_alt_mon): This.
(mon): Import from CLDR (genitive case).
(abmon): Copy from the old content except the 5th month which is
now in the genitive case, even when abbreviated.
* localedata/locales/ru_UA: Likewise.
* time/tst-strptime.c (day_tests): Add an actual example of
a difference between %b and %Ob in Russian.
* sysdeps/mach/hurd/net/ethernet.h: Include <stdint.h>.
* sysdeps/mach/hurd/net/if_arp.h: Include <stdint.h>.
* sysdeps/mach/hurd/net/if_ppp.h: Do not include non-existing
<net/ppp_defs.h>.
_POSIX_CHOWN_RESTRICTED and _POSIX_NO_TRUNC should be always defined.
* sysdeps/mach/hurd/bits/posix_opt.h (_POSIX_CHOWN_RESTRICTED,
_POSIX_NO_TRUNC): Define to 0.
400669754d ('hurd: Fix nscd build') had the side effect of making
libc's freeaddrinfo expose freeifaddrs through __check_pf. We can just
move the renames to gai.c itself, along others.
* sysdeps/mach/hurd/check_pf.c (__getifaddrs, __freeifaddrs): Do not
define macros.
* nscd/gai.c (__getifaddrs): Define macro to getifaddrs.
(__freeifaddrs): Define macro to freeifaddrs.
* hurd/hurd.h (__hurd_fail): Always declare function, and provide inline
version only if __USE_EXTERN_INLINES is defined.
* hurd/hurd/fd.h (_hurd_fd_error_signal, _hurd_fd_error, __hurd_dfail,
__hurd_sockfail): Likewise.
(_hurd_fd_get): Always declare functions, and provide inline versions
only if __USE_EXTERN_INLINES and _LIBC are defined and IS_IN(libc).
* hurd/hurd/port.h (_hurd_port_init, _hurd_port_locked_get,
_hurd_port_get, _hurd_port_free, _hurd_port_locked_set,
_hurd_port_set): Always declare functions, and provide inline versions
only if __USE_EXTERN_INLINES and _LIBC are defined and
IS_IN(libc).
* hurd/hurd/signal.h (_hurd_self_sigstate, _hurd_critical_section_lock,
_hurd_critical_section_unlock): Likewise.
* hurd/hurd/threadvar.h (__hurd_threadvar_location_from_sp,
* __hurd_threadvar_location): Likewise.
* hurd/hurd/userlink.h (_hurd_userlink_link, _hurd_userlink_unlink,
_hurd_userlink_clear): Likewise.
* mach/lock-intern.h (__spin_lock_init, __spin_lock, __mutex_lock,
__mutex_unlock, __mutex_trylock): Always declare functions, and provide
inline versions only if __USE_EXTERN_INLINES and _LIBC are defined.
* mach/mach/mig_support.h (__mig_strncpy): Likewise.
* sysdeps/generic/machine-lock.h (__spin_unlock, __spin_try_lock,
__spin_lock_locked): Likewise.
* sysdeps/mach/i386/machine-lock.h (__spin_unlock, __spin_try_lock,
__spin_lock_locked): Likewise.
* mach/spin-lock.c (__USE_EXTERN_INLINES): Define to 1.
* hurd/Versions (libc: GLIBC_2.27): Add _hurd_fd_error_signal,
_hurd_fd_error, __hurd_dfail, __hurd_sockfail, _hurd_port_locked_set,
__hurd_threadvar_location_from_sp, __hurd_threadvar_location,
_hurd_userlink_link, _hurd_userlink_unlink, _hurd_userlink_clear.
Some warnings need a couple of fixes in the gnumach headers.
* scripts/build-many-glibcs.py (checkout_vcs): Add gnumach
repository URLs, run autoreconf, and make it the default for now.
* sysdeps/mach/hurd/getresgid.c (__getresgid): Set result from
critical section to make code simpler and avoid warning.
* sysdeps/mach/hurd/getresuid.c (__getresuid): Set result from
critical section to make code simpler and avoid warning.
Making `special_profil_failure' both avoids warning "variable
'special_profil_failure' set but not used", and makes it easier to
access with gdb.
* sysdeps/mach/hurd/profil.c (special_profil_failure): Move variable
to global scope.
Some warnings come from code generated by mig, so we need a very recent
version for now.
* scripts/build-many-glibcs.py (checkout_vcs): Add mig repository
URL, and run autoreconf, make it the default for now.
This was dropped from GNU Mach in 2006.
* mach/Machrules (MIGFLAGS): Do not set -DMACH_IPC_COMPAT=0.
* mach/mach/mach_traps.h: Drop comment about MACH_IPC_COMPAT.
* sysdeps/mach/hurd/fork.c (__fork): Drop special casing
MACH_IPC_COMPAT.
gcc's libcilkrts has never actually supported GNU/Hurd, and doesn't
automatically disable it, and the support was actually removed in gcc trunk,
so that will never actually be fixed there.
* scripts/build-many-glibcs.py [os == gnu] (build_gcc): Pass
--disable-libcilkrts to gcc configure.
timer_ptr2id and timer_id2ptr are used to convert between
application-visible timer_t and struct timer_node *. timer_ptr2id was made
to use void * instead of timer_t in 49b650430e ('Update.') for no reason.
It happens that on Linux timer_t is void *, so both that change and this
commit are no-ops there, but not on systems where timer_t is not void *.
Using timer_ptr2id for filling sival_ptr also does not make sense since that
actually is a void *.
* sysdeps/pthread/posix-timer.h (timer_ptr2id): Cast to timer_t
instead of void *.
* sysdeps/pthread/timer_create.c (timer_create): Do not use
timer_ptr2id to cast struct timer_node * to void *.
In commit cba595c350 and commit
f81ddabffd, ABI compatibility with
applications was broken by increasing the size of the on-stack
allocated __pthread_unwind_buf_t beyond the oringal size.
Applications only have the origianl space available for
__pthread_unwind_register, and __pthread_unwind_next to use,
any increase in the size of __pthread_unwind_buf_t causes these
functions to write beyond the original structure into other
on-stack variables leading to segmentation faults in common
applications like vlc. The only workaround is to version those
functions which operate on the old sized objects, but this must
happen in glibc 2.28.
Thank you to Andrew Senkevich, H.J. Lu, and Aurelien Jarno, for
submitting reports and tracking the issue down.
The commit reverts the above mentioned commits and testing on
x86_64 shows that the ABI compatibility is restored. A tst-cleanup1
regression test linked with an older glibc now passes when run
with the newly built glibc. Previously a tst-cleanup1 linked with
an older glibc would segfault when run with an affected glibc build.
Tested on x86_64 with no regressions.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
The RISC-V port defines ELF flags that enforce compatibility between
various objects. This adds the shared support necessary for these
flags.
2018-01-25 Palmer Dabbelt <palmer@sifive.com>
* elf/cache.c (print_entry): Add FLAG_RISCV_FLOAT_ABI_SOFT and
FLAG_RISCV_FLOAT_ABI_DOUBLE.
* elf/elf.h (EF_RISCV_RVC): New define.
(EF_RISCV_FLOAT_ABI): Likewise.
(EF_RISCV_FLOAT_ABI_SOFT): Likewise.
(EF_RISCV_FLOAT_ABI_SINGLE): Likewise.
(EF_RISCV_FLOAT_ABI_DOUBLE): Likewise.
(EF_RISCV_FLOAT_ABI_QUAD): Likewise.
* sysdeps/generic/ldconfig.h (FLAG_RISCV_FLOAT_ABI_SOFT): New
define.
(FLAG_RISCV_FLOAT_ABI_DOUBLE): Likewise.
The arguments of the LIBC_SLIBDIR_RTLDDIR macro are used both in unquoted
and single quoted context, so that neither shell nor makefile variable
references work. Consistently put them in single quotes so that they can
refer to makefile variables.
Since it turns out soft-float ColdFire has a different glibc ABI to
hard-float ColdFire, as well as various differences in which glibc
code gets built, this patch adds such a configuration to
build-many-glibcs.py to (hopefully) complete the set of ABIs being
tested. (Note that the build for soft-float ColdFire is currently
broken even with GCC mainline - I have a glibc patch to fix this, but
it needs before-and-after build-many-glibcs.py comparison of stripped
binaries for all configurations before being committed.)
* scripts/build-many-glibcs.py (Context.add_all_configs): Add
soft-float ColdFire configuration.
The sole failure for ColdFire in the compilation part of the glibc
testsuite is the localplt test. This patch adds a localplt baseline
for ColdFire to eliminate that failure. The difference from the
existing m68k baseline is that no PLT entry for _Unwind_Find_FDE is
expected, because ColdFire does not set
libc_cv_gcc_unwind_find_fde=yes.
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/m68k/localplt.data: Move to ....
* sysdeps/unix/sysv/linux/m68k/m680x0/localplt.data: ... here.
* sysdeps/unix/sysv/linux/m68k/coldfire/localplt.data: New file.
As with some other soft-float configurations, no-FPU ColdFire needs
various fenv.h functions and glibc-internal macros overridden in
math_private.h to avoid references to undefined FE_* macros when
building glibc. This patch adds a suitable math_private.h, based on
the MicroBlaze one (Nios II and Tile also have similar files).
There's a case for having such a file in sysdeps/ieee754/soft-fp so
this logic is applied more generally to configurations without
exceptions and rounding modes, even when the relevant macros are
defined in fenv.h - the only case where that might be inappropriate is
ARM soft-float (where the fenv.h functions might or might not work at
runtime, depending on whether the processor used at runtime supports
VFP). There's also a case that soft-float configurations (on
processors with both hard-float and soft-float) should more
consistently avoid defining FE_* macros in bits/fenv.h when not
actually supported. But both of those are separate potential
cleanups.
This allows the no-FPU ColdFire build to get further (another fix is
needed to allow the build to complete).
* sysdeps/m68k/coldfire/nofpu/math_private.h: New file. Based on
MicroBlaze file.
Continuing the fixes for ColdFire glibc build with
build-many-glibcs.py, given a GCC patch for the libgcc build failure,
this patch adds jmp_buf-macros.h for no-FPU ColdFire. This allows the
no-FPU build to progress further than without the patch (although
other fixes are still needed for the build to complete).
* sysdeps/unix/sysv/linux/m68k/coldfire/jmp_buf-macros.h: Move to
....
* sysdeps/unix/sysv/linux/m68k/coldfire/fpu/jmp_buf-macros.h:
... here.
* sysdeps/unix/sysv/linux/m68k/coldfire/nofpu/jmp_buf-macros.h:
New file.
This patch adds a jmp_buf-macros.h for ColdFire. In conjunction with
a GCC patch to fix the libgcc build failure for ColdFire
<https://gcc.gnu.org/ml/gcc-patches/2018-01/msg02064.html> this
suffices to restore the build (tested with build-many-glibcs.py). A
further patch will be needed for soft-float ColdFire (while the
function-calling ABI is the same for hard-float and soft-float
ColdFire, it turns out the glibc ABI is not - so another ColdFire
variant will be needed in build-many-glibcs.py), but I'll deal with
that separately.
Tested with build-many-glibcs.py (m68k-linux-gnu and
m68k-linux-gnu-coldfire). (There's a localplt test failure for
coldfire; that's the only failure in the compilation part of the
testsuite.)
* sysdeps/unix/sysv/linux/m68k/jmp_buf-macros.h: Move to ....
* sysdeps/unix/sysv/linux/m68k/m680x0/jmp_buf-macros.h: ... here.
* sysdeps/unix/sysv/linux/m68k/coldfire/jmp_buf-macros.h: New
file.
The uc_mcontext.__reserved member of ucontext_t is a user visible API,
that should not be changed, because this is the only way to access cpu
states of various extensions of linux asm/sigcontext.h, it does not
violate namespace rules either, so revert this part of the commit
commit 4fa9b3bfe6
Commit: Joseph Myers <joseph@codesourcery.com>
Fix mcontext_t sigcontext namespace (bug 21457).
(In principle the user can type cast &uc_mcontext to struct sigcontext*
to use the linux sigcontext fields, but that's not the existing practice
since mcontext_t used to be a typedef of struct sigcontext.)
[BZ #22742]
* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (__glibc_reserved1):
Rename to __reserved and add comment.
* sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (__glibc_reserved1):
Rename to __reserved.
This patch adds build-many-glibcs.py support for GNU Hurd. Builds of
the i686-gnu configuration will fail until sufficient support is
merged to master, so completing build-many-glibcs.py coverage of all
glibc ABIs and making results accurately reflect the broken state of
builds for Hurd.
* scripts/build-many-glibcs.py (Context.add_all_configs): Add
i686-gnu configurations.
(Context.run_builds): Include mig, gnumach and hurd in components
considered.
(Context.checkout): Add mig, gnumach and hurd to components.
(Context.checkout_tar): Add URL mappings for mig, gnumach and
hurd.
(Context.bot_cycle): Check for changes to mig, gnumach and hurd.
(Config.build): Install gnumach headers, build mig and install
hurd headers for 'gnu' OS.
(Config.install_gnumach_headers): New function.
(Config.install_hurd_headers): Likewise.
(Glibc.build_glibc): Do not use /usr for 'gnu' OS. Specifiy MIG
when building for 'gnu' OS.
"%OB" is considered a conversion specifier ("B" is the format
specifier), and the list of format specifiers for months in the
description of the optional "O" modifier was incomplete. A
cross-reference from the ALTMON_* constants to the strftime section
is also provided. Lastly, some grammatical fixes (commas) are made
and paragraphs refactored (rewrapped).
* manual/locale.texi (ALTMON_1, ALTMON_2, ALTMON_3, ALTMON_4,
ALTMON_5, ALTMON_6, ALTMON_7, ALTMON_8, ALTMON_9, ALTMON_10,
ALTMON_11, ALTMON_12): Improve documentation.
* manual/time.texi (strftime): Likewise.
[BZ #10871]
* manual/locale.texi: Document ALTMON_1..12 constants for
nl_langinfo. Specify when to use ALTMON instead of MON.
* manual/time.texi (strftime, strptime): Document GNU extension
permitting O modifier with %B and %b. Specify when to use
%OB instead of %B.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
All the previous changes also repeated to support abbreviated
alternative month names. In most languages which have declension and
need nominative/genitive month names the abbreviated forms for both
cases are the same. An example where they do differ is May in Russian:
this name is too short to be abbreviated so even the abbreviated form
features the declension suffixes.
[BZ #10871]
* locale/C-time.c (_nl_C_LC_TIME): Add abbreviated alternative month
names, define them as the same as abbreviated month names explicitly.
* locale/categories.def (LC_TIME): Add ab_alt_mon and wide-ab_alt_mon.
* locale/langinfo.h: (_NL_ABALTMON_1, _NL_ABALTMON_2, _NL_ABALTMON_3,
_NL_ABALTMON_4, _NL_ABALTMON_5, _NL_ABALTMON_6, _NL_ABALTMON_7,
_NL_ABALTMON_8, _NL_ABALTMON_9, _NL_ABALTMON_10, _NL_ABALTMON_11,
_NL_ABALTMON_12, _NL_WABALTMON_1, _NL_WABALTMON_2, _NL_WABALTMON_3,
_NL_WABALTMON_4, _NL_WABALTMON_5, _NL_WABALTMON_6, _NL_WABALTMON_7,
_NL_WABALTMON_8, _NL_WABALTMON_9, _NL_WABALTMON_10, _NL_WABALTMON_11,
_NL_WABALTMON_12): New enum constants.
* locale/programs/ld-time.c (struct locale_time_t): Add ab_alt_mon,
wab_alt_mon, and ab_alt_mon_defined members.
(time_output): Output ab_alt_mon and wab_alt_mon members.
(time_read): Read them, initialize them as copies of abmon and wabmon
respectively if they are missing, initialize ab_alt_mon_defined.
* locale/programs/locfile-kw.gperf (ab_alt_mon): Define.
* locale/programs/locfile-kw.h: Regenerate.
* locale/programs/locfile-token.h (tok_ab_alt_mon): New enum constant.
* time/Makefile [$(run-built-tests) = yes] (LOCALES): Add es_ES.UTF-8
and ru_RU.UTF-8.
* time/strftime_l.c (a_altmonth, aam_len): New macros.
[!COMPILE_WIDE] (ABALTMON_1): New macro.
(__strftime_internal): Handle %Ob and %Oh formats.
* time/strptime_l.c [_LIBC] (ab_alt_month_name): New macro.
(__strptime_internal): Handle %Ob and %Oh formats.
* time/tst-strptime.c (day_tests): Add more tests to parse different
forms of month names including the new %Ob format specifier.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Some languages (Slavic, Baltic, etc.) require a genitive case of the
month name when formatting a full date (with the day number) while
they require a nominative case when referring to the month standalone.
This requirement cannot be fulfilled without providing two forms for
each month name. From now it is specified that nl_langinfo(MON_1)
series (up to MON_12) and strftime("%B") generate the month names in
the grammatical form used when the month is a part of a complete date.
If the grammatical form used when the month is named by itself is needed,
the new values nl_langinfo(ALTMON_1) (up to ALTMON_12) and
strftime("%OB") are supported. This new feature is optional so the
languages which do not need it or do not yet provide the updated
locales simply do not use it and their behaviour is unchanged.
[BZ #10871]
* locale/C-time.c (_nl_C_LC_TIME): Add alternative month names,
define them as the same as primary full month names explicitly.
* locale/categories.def (LC_TIME): Add alt_mon and wide-alt_mon.
* locale/langinfo.h (__ALTMON_1, __ALTMON_2, __ALTMON_3, __ALTMON_4,
__ALTMON_5, __ALTMON_6, __ALTMON_7, __ALTMON_8, __ALTMON_9, __ALTMON_10,
__ALTMON_11, __ALTMON_12, _NL_WALTMON_1, _NL_WALTMON_2, _NL_WALTMON_3,
_NL_WALTMON_4, _NL_WALTMON_5, _NL_WALTMON_6, _NL_WALTMON_7,
_NL_WALTMON_8, _NL_WALTMON_9, _NL_WALTMON_10, _NL_WALTMON_11,
_NL_WALTMON_12): New enum constants.
[__USE_GNU] (ALTMON_1, ALTMON_2, ALTMON_3, ALTMON_4, ALTMON_5, ALTMON_6,
ALTMON_7, ALTMON_8, ALTMON_9, ALTMON_10, ALTMON_11, ALTMON_12): New
macros.
* locale/programs/ld-time.c (struct locale_time_t): Add alt_mon,
walt_mon, and alt_mon_defined members.
(time_output): Output alt_mon and walt_mon members.
(time_read): Read them, initialize them as copies of mon and wmon
respectively if they are missing, initialize alt_mon_defined.
* locale/programs/locfile-kw.gperf (alt_mon): Define.
* locale/programs/locfile-kw.h: Regenerate.
* locale/programs/locfile-token.h (tok_alt_mon): New enum constant.
* localedata/tst-langinfo.c (map): Add tests for the new constants
ALTMON_1 .. ALTMON_12.
* time/Makefile [$(run-built-tests) = yes] (LOCALES): Add fr_FR.UTF-8
and pl_PL.UTF-8.
* time/strftime_l.c (f_altmonth): New macro.
(__strftime_internal): Handle %OB format.
* time/strptime_l.c [_LIBC] (alt_month_name): New macro.
(__strptime_internal): Handle %OB format.
* time/tst-strptime.c (day_tests): Add tests to parse different forms
of month names including the new %OB format specifier.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
The tunables framework needs to execute syscall early in process
initialization, before the TCB is available for consumption. This
behavior conflicts with powerpc{|64|64le}'s lock elision code, that
checks the TCB before trying to abort transactions immediately before
executing a syscall.
This patch adds a powerpc-specific implementation of __access_noerrno
that does not abort transactions before the executing syscall.
Tested on powerpc{|64|64le}.
[BZ #22685]
* sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION_IMPL): Renamed
from ABORT_TRANSACTION.
(ABORT_TRANSACTION): Redirect to ABORT_TRANSACTION_IMPL.
* sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION,
ABORT_TRANSACTION_IMPL): Likewise.
* sysdeps/unix/sysv/linux/powerpc/not-errno.h: New file. Reuse
Linux code, but remove the code that aborts transactions.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Reported-by: Robert Pluim <rpluim@gmail.com>
* localedata/locales/gu_IN (LC_IDENTIFICATION): Fix an obvious typo
in date: "2004-14-09" should be "2004-09-14".
* localedata/locales/lo_LA: Fix an obvious typo in date in the header:
"2003-15-09" should be "2003-09-15".
When posix_memalign is called with an alignment less than MALLOC_ALIGNMENT
and a requested size close to SIZE_MAX, it falls back to malloc code
(because the alignment of a block returned by malloc is sufficient to
satisfy the call). In this case, an integer overflow in _int_malloc leads
to posix_memalign incorrectly returning successfully.
Upon fixing this and writing a somewhat thorough regression test, it was
discovered that when posix_memalign is called with an alignment larger than
MALLOC_ALIGNMENT (so it uses _int_memalign instead) and a requested size
close to SIZE_MAX, a different integer overflow in _int_memalign leads to
posix_memalign incorrectly returning successfully.
Both integer overflows affect other memory allocation functions that use
_int_malloc (one affected malloc in x86) or _int_memalign as well.
This commit fixes both integer overflows. In addition to this, it adds a
regression test to guard against false successful allocations by the
following memory allocation functions when called with too-large allocation
sizes and, where relevant, various valid alignments:
malloc, realloc, calloc, reallocarray, memalign, posix_memalign,
aligned_alloc, valloc, and pvalloc.
Remove myself, give the full credit to Egmont Koblinger.
When committing someone else's changes, one should put the contributor's
name in the change log entry.
* localedata/locales/bho_NP (LC_IDENTIFICATION): Fix an obvious typo
in date: "2017-24-07" should be "2017-07-24".
* localedata/locales/mai_IN: Likewise.
* localedata/locales/mai_NP: Likewise.
The only architecture in glibc that uses the generic debug/backtrace.c
is hppa. The debug/tst-backtrace* tests fail for hppa, so in fact the
generic debug/backtrace.c is not functional anywhere. Instead, the
x86_64 version is a reasonably generic version that uses
_Unwind_Backtrace from libgcc to backtrace using unwind info, and is
used by several architectures. This patch adds hppa to the
architectures using it (leaving open the possibility of a subsequent
cleanup for 2.28 of moving the x86_64 version to debug/backtrace.c,
and removing all the frame.h files that are now unused).
Reported by Adhemerval in
<https://sourceware.org/ml/libc-alpha/2018-01/msg00564.html> that this
does fix the backtrace test failures for hppa.
[BZ #22719]
* sysdeps/hppa/backtrace.c: New file.
_dl_runtime_profile calls _dl_call_pltexit, passing a pointer to
La_x86_64_retval which is allocated on stack. The lrv_vector0
field in La_x86_64_retval must be aligned to size of vector register.
When allocating stack space for La_x86_64_retval, we need to make sure
that the address of La_x86_64_retval + RV_VECTOR0_OFFSET is aligned to
VEC_SIZE. This patch checks the alignment of the lrv_vector0 field
and pads the stack space if needed.
Tested with x32 and x86-64 on SSE4, AVX and AVX512 machines. It fixed
FAIL: elf/tst-audit10
FAIL: elf/tst-audit4
FAIL: elf/tst-audit5
FAIL: elf/tst-audit6
FAIL: elf/tst-audit7
on x32 AVX512 machine.
[BZ #22715]
* sysdeps/x86_64/dl-trampoline.h (_dl_runtime_profile): Properly
align La_x86_64_retval to VEC_SIZE.
The x86_64 backtrace implementation is used as a generic
implementation (unwinding via unwind info and _Unwind_Backtrace) by
various other architectures. This patch makes it more generic by
making it use LIBGCC_S_SO from gnu/lib-names.h instead of hardcoding
the libgcc_s.so.1 name, so that it can also be used on hppa which uses
libgcc_s.so.4.
Tested for x86_64.
* sysdeps/x86_64/backtrace.c: Include <gnu/lib-names.h>.
(init): Use LIBGCC_S_SO not hardcoded "libgcc_s.so.1".
Define new HWCAP bits and add their name to dl-procinfo.c following
the linux definitions. Synchronizing with v4.15-rc8 version of linux,
these are not expected to change before the 4.15 release.
* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SHA3): Define.
(HWCAP_SM3, HWCAP_SM4, HWCAP_ASIMDDP, HWCAP_SHA512, HWCAP_SVE): Define.
* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
(_dl_aarch64_cap_flags): Update.
(_DL_HWCAP_COUNT): Update.
Remove unused _DL_HWCAP_LAST definition and move _DL_HWCAP_COUNT
where it is needed (dl-procinfo.h always includes dl-procinfo.c).
* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h
(_DL_HWCAP_LAST): Remove.
(_DL_HWCAP_COUNT): Move to ...
* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
(_DL_HWCAP_COUNT): ... here.
This patch synchronizes DF_1_* flags with binutils
and ensures that all DF_1_* flags defined in binutil's
include/elf/common.h are also defined glibc's elf/elf.h.
This is a user visible change since elf/elf.h is installed
by default as /usr/include/elf.h.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
This issue is similar to BZ #19235, where spurious exceptions are
created from adding 0.5 then converting to an integer.
The solution is based on Joseph's fix for BZ #19235.
[BZ #22697]
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S (__llround):
Do not add 0.5 to integer or out-of-range arguments.
In the static pie enabled libc, crt1.o uses the same position independent
code as rcrt1.o and crt1.o is used instead of Scrt1.o when -no-pie
executables are linked. When main is not defined in the executable, but
in a shared library crt1.o is currently broken, it assumes main is local.
(glibc has a test for this but i missed it in my previous testing.)
To make both rcrt1.o and crt1.o happy with the same code, a wrapper is
introduced around main: with this crt1.o works with extern main symbol
while rcrt1.o does not depend on GOT relocations. (The change only
affects static pie enabled libc. Further simplification of start.S is
possible in the future by using the same approach for Scrt1.o too.)
* aarch64/start.S (_start): Use __wrap_main.
(__wrap_main): New local symbol.
Currently getcwd(3) can succeed without returning an absolute path
because the underlying getcwd syscall, starting with linux commit
v2.6.36-rc1~96^2~2, may succeed without returning an absolute path.
This is a conformance issue because "The getcwd() function shall
place an absolute pathname of the current working directory
in the array pointed to by buf, and return buf".
This is also a security issue because a non-absolute path returned
by getcwd(3) causes a buffer underflow in realpath(3).
Fix this by checking the path returned by getcwd syscall and falling
back to generic_getcwd if the path is not absolute, effectively making
getcwd(3) fail with ENOENT. The error code is chosen for consistency
with the case when the current directory is unlinked.
[BZ #22679]
CVE-2018-1000001
* sysdeps/unix/sysv/linux/getcwd.c (__getcwd): Fall back to
generic_getcwd if the path returned by getcwd syscall is not absolute.
* io/tst-getcwd-abspath.c: New test.
* io/Makefile (tests): Add tst-getcwd-abspath.
The current date format prefixes one-digit days with a space, resulting
in ugly two spaces:
$ LC_ALL=hu_HU.UTF-8 date
2018. jan. 1., hétfő, 21:25:35 CET
^^
The official orthography rules doesn't contain an explicit rule about
this (which already gives no sane reason for double space), and an
implicit example of "1848. március 9." under bullet point 296 at
http://helyesiras.mta.hu/helyesiras/default/akh12 contains a single
space only. It's sure not convincing on an HTML page, but I confirm
that the official book edition (e.g.
https://www.libri.hu/en/konyv/a-magyar-helyesiras-szabalyai-32.html)
also contains a single space there.
[BZ #22657]
* localedata/locales/hu_HU (d_t_fmt): Avoid a leading space
before the day number which may produce a double space.
(date_fmt): Likewise.
My fix for bug 22702 introduced linknamespace test failures on
s390x-linux-gnu and s390-linux-gnu because it made remainder call
__feholdexcept, and the s390 __feholdexcept calls fegetenv, and
remainder is in Unix98 and XPG4.2 but fegetenv isn't. This patch
makes __feholdexcept call __fegetenv instead to avoid that namespace
issue.
Tested (compilation) with build-many-glibcs.py for s390x-linux-gnu,
where it resolves the test failures.
* sysdeps/s390/fpu/feholdexcpt.c (__feholdexcept): Call __fegetenv
instead of fegetenv.
For soft-float powerpc, the math/test-nearbyint-except-2 test fails
because nearbyintl traps when traps on "inexact" are enabled on entry
(and an "inexact" exception is generated internally, though cleared
for the final return).
The problem is the default implementation of
libc_feholdsetround_noex_ctx, which does not disable exception traps.
There is some ambiguity about whether the *noex* interfaces are
required to do so or only permitted to do so. But given that we
support fe* interfaces to enable and disable traps (on architectures
with that functionality), functions that must not raise an exception
(must not leave the flag set on exit if not set on entry) should also
not trap on it when traps on that exception are enabled. So it is
appropriate to define these interfaces to have the feholdexcept effect
of disabling exception traps; this patch updates the default
implementation and comments accordingly.
At least some architecture versions already disable traps; there are
few uses of the *noex* interfaces at all, and while it's possible
there are bugs on any architecture versions failing to disable traps
that appear in the exp2 and remainder implementations, there are
currently no tests, other than this one for nearbyintl (where only the
ldbl-128ibm implementation uses SET_RESTORE_ROUND_NOEX), that would
fail as a result of such a bug. (Hard-float powerpc does disable
traps here, hence the nearbyintl failure not appearing there.)
Tested for powerpc (soft-float). This brings that configuration to
clean math/ test results, provided you build with GCC 8 to get the fix
for GCC bug 64811.
[BZ #22702]
* sysdeps/generic/math_private.h (libc_feresetround_noex): Update
comment to say exceptions are discarded.
(libc_feholdsetround_noex_ctx): Use __feholdexcept instead of
__fegetenv.
(SET_RESTORE_ROUND_NOEX): Update comment to say non-stop mode must
be enabled.
I verified that without the guard accounting change in commit
630f4cc3aa (Fix stack guard size
accounting) and RTLD_NOW for libgcc_s introduced by commit
f993b87540 (nptl: Open libgcc.so with
RTLD_NOW during pthread_cancel), the tst-minstack-cancel test fails on
an AVX-512F machine. tst-minstack-exit still passes, and either of
the mentioned commit by itself frees sufficient stack space to make
tst-minstack-cancel pass, too.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
The ldbl-128ibm implementation of log1pl does ordered comparisons on a
negative qNaN argument, so resulting in spurious "invalid" exceptions
(for soft-float powerpc; hard-float only avoids this because of GCC
bug 58684 meaning ordered comparison instructions never get
generated). This patch fixes this by arranging for the test for NaN
or infinity arguments to handle negative arguments as well.
Tested for powerpc (soft float).
[BZ #22693]
* sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Handle
negative arguments in test for NaN or infinity argument.
Disabling lazy binding reduces stack usage during unwinding.
Note that RTLD_NOW only makes a difference if libgcc.so has not
already been loaded, so this is only a partial fix.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* hurd/hurd/fd.h: Include <fcntl.h>
(__hurd_at_flags): New function.
* hurd/lookup-at.c (__file_name_lookup_at): Replace flag computation
with call to __hurd_at_flags.
* include/unistd.h (__faccessat, __faccessat_noerrno): Add declaration.
* sysdeps/mach/hurd/access.c (access_common): Move implementation to
__faccessat
(hurd_fail_seterrno, hurd_fail_noerrno): Move to sysdeps/mach/hurd/faccessat.c.
(__access_noerrno): Use __faccessat_common instead of access_common.
(__access): Likewise.
* sysdeps/mach/hurd/euidaccess.c (__euidaccess): Replace implementation
with a call to __faccessat.
* sysdeps/mach/hurd/faccessat.c (faccessat): Rename into...
(__faccessat_common): ... this. Move implementation of __access into it when
AT_FLAGS does not contain AT_EACCESS. Make it call __hurd_at_flags, add
reauthenticate_cwdir_at helper to implement AT mechanism.
(__faccessat_noerrno): New function, just calls __faccessat_common.
(__faccessat): New function, just calls __faccessat_common.
(faccessat): Define weak alias.
For soft-float powerpc, fmaxmagl and fminmagl generate spurious
"invalid" exceptions for quiet NaN arguments. This is another case of
the problems with fabsl inline expansion via comparisons, and so is
fixed by building those functions with -fno-builtin-fabsl.
Tested for powerpc (soft-float).
[BZ #22691]
* sysdeps/powerpc/nofpu/Makefile [$(subdir) = math]
(CFLAGS-s_fmaxmagl.c): New variable.
[$(subdir) = math] (CFLAGS-s_fminmagl.c: Likewise.
The ldbl-128ibm implementations of lrintl and lroundl are missing
"invalid" exceptions for certain overflow cases when compiled with GCC
8. The cause of this is after-the-fact integer overflow checks that
fail when the compiler optimizes on the basis of integer overflow
being undefined; GCC 8 must be able to detect new cases of
undefinedness here.
Failure: lrint (-0x80000001p0): Exception "Invalid operation" not set
Failure: lrint_downward (-0x80000001p0): Exception "Invalid operation" not set
Failure: lrint_towardzero (-0x80000001p0): Exception "Invalid operation" not set
Failure: lrint_upward (-0x80000001p0): Exception "Invalid operation" not set
Failure: lround (-0x80000001p0): Exception "Invalid operation" not set
Failure: lround_downward (-0x80000001p0): Exception "Invalid operation" not set
Failure: lround_towardzero (-0x80000001p0): Exception "Invalid operation" not set
Failure: lround_upward (-0x80000001p0): Exception "Invalid operation" not set
(Tested that these failures occur before the patch for powerpc
soft-float, but the issue applies in principle for hard-float as well,
whether or not the particular optimizations in fact occur there at
present.)
This patch fixes the bug by ensuring the additions / subtractions in
question cast arguments to unsigned long int, or use 1UL as a constant
argument, so that the arithmetic occurs in an unsigned type with the
result then converted back to a signed type.
Tested for powerpc (soft-float).
[BZ #22690]
* sysdeps/ieee754/ldbl-128ibm/s_lrintl.c (__lrintl): Use unsigned
long int for arguments of possibly overflowing addition or
subtraction.
* sysdeps/ieee754/ldbl-128ibm/s_lroundl.c (__lroundl): Likewise.
For soft-float powerpc, the remainderl function produces zero results
with the wrong sign for various inputs. This is another instance of
the problem with incorrect built-in fabsl expansion, so is fixed by
this patch using -fno-builtin-fabsl for this function.
Tested for powerpc (soft-float).
[BZ #22688]
* sysdeps/powerpc/nofpu/Makefile [$(subdir) = math]
(CFLAGS-e_remainderl.c): New variable.
For soft-float powerpc, various _Complex long double functions
generate spurious "invalid" exceptions, even with a compiler with GCC
bug 64811 fixed.
The problem is GCC's built-in fabsl expansion. Various files are
already built with -fno-builtin-fabsl because in this case (IBM long
double, for soft-float or e500v1) a fallback fabsl expansion based on
comparisons is used, which can produce the wrong sign of a zero
result. Those comparisons can also produce spurious exceptions for
NaN arguments. Furthermore, __builtin_fpclassify implemently uses
__builtin_fabsl, and is unaffected by -fno-builtin-fabsl, and the
fpclassify macro uses __builtin_fpclassify in the absence of
-fsignaling-nans. Thus, this patch arranges for the problem files
using fpclassify to be built with -fsignaling-nans in this case, to
avoid spurious exceptions from fpclassify.
Tested for powerpc (soft-float).
[BZ #22687]
* sysdeps/powerpc/nofpu/Makefile (CFLAGS-s_cacosl.c): New
variable.
(CFLAGS-s_cacoshl.c): Likewise.
(CFLAGS-s_casinhl.c): Likewise.
(CFLAGS-s_catanl.c): Likewise.
(CFLAGS-s_catanhl.c): Likewise.
(CFLAGS-s_cexpl.c): Likewise.
(CFLAGS-s_ccoshl.c): Add -fsignaling-nans.
(CFLAGS-s_csinhl.c): Likewise.
(CFLAGS-s_clogl.c): Likewise.
(CFLAGS-s_clog10l.c): Likewise.
(CFLAGS-s_csinl.c): Likewise.
(CFLAGS-s_csqrtl.c): Likewise.
From: Emilio Pozuelo Monfort <pochu27@gmail.com>
From: Svante Signell <svante.signell@gmail.com>
Pass the file paths of executable to the exec server, both relative and
absolute, which exec needs to properly execute and avertise #!-scripts.
Previously, the exec server tried to guess the name from argv[0] but argv[0]
only contains the executable name by convention.
* hurd/hurdexec.c (_hurd_exec): Deprecate function.
(_hurd_exec_paths): New function.
* hurd/hurd.h (_hurd_exec): Deprecate function.
(_hurd_exec_paths): Declare function.
* hurd/Versions: Export _hurd_exec_paths.
* sysdeps/mach/hurd/execve.c: Include <stdlib.h> and <stdio.h>
(__execve): Use __getcwd to build absolute path, and use
_hurd_exec_paths instead of _hurd_exec.
* sysdeps/mach/hurd/spawni.c: Likewise.
* sysdeps/mach/hurd/fexecve.c: Use _hurd_exec_paths instead of
_hurd_exec.
