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fc141ea78ee3...
Andreas Schwab
Fix array bounds violation in regex matcher (bug 25149)
If the regex has more subexpressions than the number of elements allocated
in the regmatch_t array passed to regexec then proceed_next_node may
access the regmatch_t array outside its bounds.

No testcase added because even without this bug it would then crash in
pop_fail_stack which is bug 11053.
fbb4a3143724...
Adhemerval Zanella
Remove pause and nanosleep not cancel wrappers
Since they are not used any longer.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
f8042536dcde...
Paul Eggert
Sync time/mktime.c with gnulib
This syncs with gnulib commit 9e78024bad107fe786cc3e5e328a475921ea0873.
* time/mktime.c: Update URL in comment.
f5b6fd258b6d...
Lukasz Majewski
y2038: linux: Provide __utimensat64 implementation
This patch provides new __utimensat64 explicit 64 bit function for
setting access and modification time of a file. Moreover, a 32 bit version
- __utimensat has been refactored to internally use __utimensat64.

The __utimensat is now supposed to be used on systems still supporting
32 bit time (__TIMESIZE != 64) - hence the necessary conversions to 64 bit
struct __timespec64.
When pointer to struct __timespec64 is NULL - the file access and modification
time is set to the current one and no conversions from struct timespec to
__timespec64 are performed.

The new utimensat_time64 syscall available from Linux 5.1+ has been used,
when applicable.
The new helper function - __utimensat64_helper - has been introduced to
facilitate code re-usage on function providing futimens syscall handling.
The Linux kernel checks if passed tv_nsec value overflows, so there is no
need to repeat it in glibc.
When utimensat syscall on systems supporting 32 bit time ABI is used,
the check is performed if passed data (which may have 64 bit tv_sec) fits
into 32 bit range.

Build tests:
- The code has been tested on x86_64/x86 (native compilation):
make PARALLELMFLAGS="-j8" && make xcheck PARALLELMFLAGS="-j8"

- The glibc has been build tested (make PARALLELMFLAGS="-j8") for
x86 (i386), x86_64-x32, and armv7

Run-time tests:
- Run specific tests on ARM/x86 32bit systems (qemu):
https://github.com/lmajewski/meta-y2038 and run tests:
https://github.com/lmajewski/y2038-tests/commits/master

- Use of cross-test-ssh.sh for ARM (armv7):
make PARALLELMFLAGS="-j8" test-wrapper='./cross-test-ssh.sh root@192.168.7.2' xcheck

Linux kernel, headers and minimal kernel version for glibc build test
matrix:
- Linux v5.1 (with utimensat_time64) and glibc build with v5.1 as
minimal kernel version (--enable-kernel="5.1.0")
The __ASSUME_TIME64_SYSCALLS flag defined.

- Linux v5.1 and default minimal kernel version
The __ASSUME_TIME64_SYSCALLS not defined, but kernel supports utimensat_time64
syscall.

- Linux v4.19 (no utimensat_time64 support) with default minimal kernel
version for contemporary glibc
This kernel doesn't support utimensat_time64 syscall, so the fallback
to utimensat is tested.

The above tests were performed with Y2038 redirection applied as well as
without (so the __TIMESIZE != 64 execution path is checked as well).

No regressions were observed.
f2e30cc0f89f...
Lukasz Majewski
linux: pselect: Remove CALL_PSELECT6 macro
Nothing defines CALL_PSELECT6 in the current tree, so remove it.

Tested with:
- make PARALLELMFLAGS="-j8" && make xcheck PARALLELMFLAGS="-j8" (x86_64)
- scripts/build-many-glibcs.py
f0f0d79ac3a2...
Arjun Shankar
libio/tst-fopenloc: Use xsetlocale, xfopen, and xfclose
e4c23a029a54...
John David Anglin
hppa: Align __clone stack argument to 8 bytes (Bug 25066)
The hppa architecture requires strict alignment for loads and stores.
As a result, the minimum stack alignment that will work is 8 bytes.
This patch adjusts __clone() to align the stack argument passed to it.
It also adjusts slightly some formatting.

This fixes the nptl/tst-tls1 test.
dae7bf389782...
liqingqing
math: enhance the endloop condition of function handle_input_flag
In the function handle_input_flag, the end-loop condition is not
correct, because when the loop variable i equals 16
(num_input_flag_types), then input_flags[16] will be out of bounds.
(This issue is only relevant with invalid input files to
gen-auto-libm-tests.)
cce35a50c1de...
Arjun Shankar
support: Add xsetlocale function
c81aa64e8182...
Adhemerval Zanella
Refactor adjtimex based on clock_adjtime
Checked on x86_64-linux-gnu.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
c5fbd7c3ea4d...
Talachan Mon
Add new locale: mnw_MM (Mon language spoken in Myanmar) [BZ #25139]
c1dac8f83ecd...
Adhemerval Zanella
Sync timespec-{add,sub} with gnulib
It sync with gnulib commit 06011ed74e978613422aca43c0bd92dc44213933.

Reviewed-by: Paul Eggert <eggert@cs.ucla.edu>
be6b16d97568...
Florian Weimer
login: Acquire write lock early in pututline [BZ #24882]
It has been reported that due to lack of fairness in POSIX file
locking, the current reader-to-writer lock upgrade can result in
lack of forward progress.  Acquiring the write lock directly
hopefully avoids this issue if there are only writers.

This also fixes bug 24882 due to the cache revalidation in
__libc_pututline.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Change-Id: I57e31ae30719e609a53505a0924dda101d46372e
b0a83ae71b25...
Florian Weimer
login: Remove double-assignment of fl.l_whence in try_file_lock
Since l_whence is the second member of struct flock, it is written
twice.  The double-assignment is technically undefined behavior due to
the lack of a sequence point.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Change-Id: I2baf9e70690e723c61051b25ccbd510aec15976c
a673c07af3bc...
Florian Weimer
hurd: Use __clock_gettime in _hurd_select
The __gettimeofday references caused check-localplt failures after
commit 5e46749c64d5.

Fixes: 5e46749c64d51f50f8511ed99c1266d7c13e182b
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Change-Id: Ia6da4045157a5bbccc67d79e881d7592e6f8a890
893bbdd0072f...
Mike Crowe
manual: Add documentation for pthread_tryjoin_np and pthread_timedjoin_np
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
  • glibc-aarch64-linux: check (clobber) -  stdio
81a1fa6cbfef...
Arjun Shankar
Fix run-one-test so that it runs elf tests
The `test' make target passes a trailing slash in the subdir argument.  This
does not play well with elf/rtld-Rules which looks for `elf' without any
trailing slash, and therefore doesn't find a match when running an elf test
individually.  This commit removes the trailing slash from the invocation.

Reviewed-by: DJ Delorie <dj@redhat.com>
80a5f8b1569b...
Joseph Myers
Declare asctime_r, ctime_r, gmtime_r, localtime_r for C2X.
C2X adds the asctime_r, ctime_r, gmtime_r and localtime_r functions.
This patch duly adds __GLIBC_USE (ISOC2X) to the conditions under
which <time.h> declares them.

Tested for x86_64.
807edded258e...
Adhemerval Zanella
nptl: Refactor thrd_sleep in terms of clock_nanosleep
Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
7aeab82edb38...
Mike Crowe
nptl: Add pthread_timedjoin_np, pthread_clockjoin_np NULL timeout test
Passing NULL as the timeout parameter to pthread_timedjoin_np has resulted
in it behaving like pthread_join for a long time. Since that is now the
documented behaviour, we ought to test that both it and the new
pthread_clockjoin_np support it.

Checked on x86_64-linux-gnu.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
  • glibc-aarch64-linux: check (clobber) -  stdio
79a547b16265...
Adhemerval Zanella
nptl: Move nanosleep implementation to libc
Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.  I also checked
the libpthread.so .gnu.version_d entries for every ABI affected and
all of them contains the required versions (including for architectures
which exports __nanosleep with a different version).

Reviewed-by: Florian Weimer <fweimer@redhat.com>
6b1472eb2ea1...
Adhemerval Zanella
Refactor PI mutexes internal definitions
This patch adds the generic futex_lock_pi and futex_unlock_pi to wrap
around the syscall machinery required to issue the syscall calls. It
simplifies a bit the futex code required to implement PI mutexes.

No function changes, checked on x86_64-linux-gnu.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
69ca4b54c151...
Mike Crowe
nptl: Add pthread_clockjoin_np
Introduce pthread_clockjoin_np as a version of pthread_timedjoin_np that
accepts a clockid_t parameter to indicate which clock the timeout should be
measured against. This mirrors the recently-added POSIX-proposed "clock"
wait functions.

Checked on x86_64-linux-gnu.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
  • glibc-aarch64-linux: check (clobber) -  stdio
64bca76f42a8...
Stefan Liebler
S390: Fp comparison are now raising FE_INVALID with gcc 10.
The s390 gcc bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77918
"S390: Floating point comparisons don't raise invalid for unordered operands."
is fixed with gcc 10. Thus we conditionally set FIX_COMPARE_INVALID
to 0 or 1.
50471a8613dc...
Florian Weimer
hurd: Remove lingering references to the time function
They cause a check-localplt failure after commit f9a7554009cf38f39.

Fixes: f9a7554009cf38f390e74fcabc5b49f974f72382
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Change-Id: I37bc20f3449b9e358f32879ed231720c969965b4
4f4bb489e0dd...
Adhemerval Zanella
nptl: Add missing placeholder abi symbol from nanosleep move
Adds the __libpthread_version_placeholder symbol with the same version
of nanosleep/__nanosleep that was removed by 79a547b162657b3f and that
is not provided by other symbols.
  • glibc-aarch64-linux: check -  stdio
4ecd58490810...
Mike FABIAN
Add mnw language code [BZ #25139]
42b926d303e5...
Adhemerval Zanella
Fix clock_nanosleep when interrupted by a signal
This patch fixes the time64 support (added by 2e44b10b42d) where it
misses the remaining argument updated if __NR_clock_nanosleep
returns EINTR.

Checked on i686-linux-gnu on 4.15 kernel (no time64 support) and
on 5.3 kernel (with time64 support).

Reviewed-by: Alistair Francis <alistair23@gmail.com>
42893aa38fd6...
Lukasz Majewski
y2038: linux: Provide __futimens64 implementation
This patch provides new __futimens64 explicit 64 bit function for
setting access and modification time of file (by using its file descriptor).
Moreover, a 32 bit version - __futimens has been refactored to internally use
__futimens64.

The __futimens is now supposed to be used on systems still supporting
32 bit time (__TIMESIZE != 64) - hence the necessary conversions to 64 bit
struct __timespec64.
When pointer to struct __timespec64 is NULL - the file access and modification
time is set to the current one (by the kernel) and no conversions from struct
timespec to __timespec64 are performed.

The __futimens64 reuses __utimensat64_helper defined for __utimensat64.

The test procedure for __futimens64 is the same as for __utimensat64 conversion
patch.
3ef5e118f268...
Mike Crowe
nptl: Fix niggles with pthread_clockjoin_np
Joseph Myers spotted[1] that 69ca4b54c151cec42ccca5e05790efc1a8206b47 added
pthread_clockjoin_np to sysdeps/nptl/pthread.h but not to its hppa-specific
equivalent sysdeps/unix/sysv/linux/hppa/pthread.h.

Rafal Luzynski spotted[2] typos in the NEWS entry and manual updates too.

Florian Weimer spotted[3] that the clockid parameter was not using a
reserved identifier in pthread.h.

[1] https://sourceware.org/ml/libc-alpha/2019-11/msg00016.html
[2] https://sourceware.org/ml/libc-alpha/2019-11/msg00019.html
[3] https://sourceware.org/ml/libc-alpha/2019-11/msg00022.html

Reviewed-by: Joseph Myers <joseph@codesourcery.com>
Reviewed-by: Rafal Luzynski <digitalfreak@lingonborough.com>
Reviewed-by: Florian Weimer <fw@deneb.enyo.de>
36ada9ee2cd3...
Florian Weimer
support: Add support_set_small_thread_stack_size
And support_small_stack_thread_attribute

Change-Id: I1cf79a469984f8f30a4a947ee9ec2a5e74de8926
356ced8dcb2c...
Adhemerval Zanella
Sync intprops.h with gnulib
It sync with gnulib commit f5756b919addb9e8ce03f4e61a10e4fcff14874a.

Reviewed-by: Paul Eggert <eggert@cs.ucla.edu>
3537ecb49cf7...
Adhemerval Zanella
Refactor nanosleep in terms of clock_nanosleep
The generic version is straightforward.  For Hurd, its nanosleep
implementation is moved to clock_nanosleep with adjustments from
generic unix implementation.

The generic clock_nanosleep unix version is also removed since
it calls nanosleep.

Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
31f000a8a659...
Adhemerval Zanella
Remove hppa pthreadP.h
It just contains duplicated defitions provided by other generic
nptl headers.

Checked with run-built-tests=no against hppa-linux-gnu.

Change-Id: I95f55d5b7b7ae528c81cd2394d57ce92398189bf
2e44b10b42d6...
Alistair Francis
sysdeps/clock_nanosleep: Use clock_nanosleep_time64 if avaliable
The clock_nanosleep syscall is not supported on newer 32-bit platforms (such
as RV32). To fix this issue let's use clock_nanosleep_time64 if it is
avaliable.
2a0356e11918...
Adhemerval Zanella
posix: Sync regex with gnulib
It sync with gnulib commit 6cfb4302b3e1da14d706198b693558290e9b00f4
and contains the fixes:

https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=32915b2a8a43825720755113bdffe9f67a591748
https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=48f07576b8cd935b48e1050551f45ab1a79b9f01
https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=5e407aba1f775d51b25481cb55f324c9868f62d7
https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=4e02b30c761c76d04057fa5f6bba71401f9310cd
https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=79f8ee4e389f8cb1339f8abed9a7d29816e2a2d4

Checked on x86_64-linux-gnu and i686-linux-gnu.
  • glibc-aarch64-linux: check -  stdio
258c242128a3...
Lukasz Majewski
y2038: linux: Provide __ppoll64 implementation
This patch provides new __ppoll64 explicit 64 bit function for handling polling
events (with struct timespec specified timeout) for a set of file descriptors.
Moreover, a 32 bit version - __ppoll has been refactored to internally use
__ppoll64.

The __ppoll is now supposed to be used on systems still supporting 32 bit time
(__TIMESIZE != 64) - hence the necessary conversion to 64 bit struct
__timespec64.

The new ppoll_time64 syscall available from Linux 5.1+ has been used, when
applicable.

The Linux kernel checks if passed tv_nsec value overflows, so there is no need
to repeat it in the glibc.

When ppoll syscall on systems supporting 32 bit time ABI is used, the check is
performed if passed data (which may have 64 bit tv_sec) fits into 32 bit range.

Build tests:
- The code has been tested on x86_64/x86 (native compilation):
make PARALLELMFLAGS="-j8" && make check PARALLELMFLAGS="-j8" && \\
make xcheck PARALLELMFLAGS="-j8"

- The glibc has been build tested (make PARALLELMFLAGS="-j8") for
x86 (i386), x86_64-x32, and armv7

Run-time tests:
- Run specific tests on ARM/x86 32bit systems (qemu):
  https://github.com/lmajewski/meta-y2038 and run tests:
  https://github.com/lmajewski/y2038-tests/commits/master

- Use of cross-test-ssh.sh for ARM (armv7):
  make PARALLELMFLAGS="-j8" test-wrapper='./cross-test-ssh.sh root@192.168.7.2' xcheck

Linux kernel, headers and minimal kernel version for glibc build test
matrix:
- Linux v5.1 (with ppoll_time64) and glibc build with v5.1 as
  minimal kernel version (--enable-kernel="5.1.0")
  The __ASSUME_TIME64_SYSCALLS flag defined.

- Linux v5.1 and default minimal kernel version
  The __ASSUME_TIME64_SYSCALLS not defined, but kernel supports ppoll_time64
  syscall.

- Linux v4.19 (no ppoll_time64 support) with default minimal kernel version for
  contemporary glibc
  This kernel doesn't support ppoll_time64 syscall, so the fallback to ppoll is
  tested.

Above tests were performed with Y2038 redirection applied as well as without
(so the __TIMESIZE != 64 execution path is checked as well).

No regressions were observed.
22434b2f0360...
Mike Crowe
nptl: Convert tst-join3 to use libsupport
Checked on x86_64-linux-gnu.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
  • glibc-aarch64-linux: check (clobber) -  stdio
215078017fd2...
Adhemerval Zanella
nptl: Replace non cancellable pause/nanosleep with futex
To help y2038 work avoid duplicate all the logic of nanosleep on
non cancellable version, the patch replace it with a new futex
operation, lll_timedwait.  The changes are:

  - Add a expected value for __lll_clocklock_wait, so it can be used
    to wait for generic values.

  - Remove its internal atomic operation and move the logic to
    __lll_clocklock.  It makes __lll_clocklock_wait even more generic
    and __lll_clocklock slight faster on fast-path (since it won't
    require a function call anymore).

  - Add lll_timedwait, which uses __lll_clocklock_wait, to replace both
    __pause_nocancel and __nanosleep_nocancel.

It also allows remove the sparc32 __lll_clocklock_wait implementation
(since it is similar to the generic one).

Checked on x86_64-linux-gnu, sparcv9-linux-gnu, and i686-linux-gnu.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
10cf7f52c602...
Florian Weimer
linux: Reduce stack size for nptl/tst-thread-affinity-pthread
And related tests.  These tests create a thread for each core, so
they may fail due to address space limitations with the default
stack size.

Change-Id: Ieef44a7731f58d3b7d6638cce4ccd31126647551
BuildBot (0.8.12) working for the glibc project.
Page built: Tue 12 Nov 2019 07:55:51 (UTC)