| Commit message (Collapse) | Author | Age | Files | Lines |
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Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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This patch fixes both sem_wait and sem_timedwait cancellation point for
uncontended case. In this scenario only atomics are involved and thus
the futex cancellable call is not issue and a pending cancellation signal
is not handled.
The fix is straighforward by calling pthread_testcancel is both function
start. Although it would be simpler to call CANCELLATION_P directly, I
decided to add an internal pthread_testcancel alias and use it to export
less internal implementation on such function. A possible change on
how pthread_testcancel is internally implemented would lead to either
continue to force use CANCELLATION_P or to adjust its every use.
GLIBC testcase also does have tests for uncontended cases, test-cancel12
and test-cancel14.c, however both are flawed by adding another
cancellation point just after thread pthread_cleanup_pop:
47 static void *
48 tf (void *arg)
49 {
50 pthread_cleanup_push (cleanup, NULL);
51
52 int e = pthread_barrier_wait (&bar);
53 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
54 {
55 puts ("tf: 1st barrier_wait failed");
56 exit (1);
57 }
58
59 /* This call should block and be cancelable. */
60 sem_wait (&sem);
61
62 pthread_cleanup_pop (0);
63
64 puts ("sem_wait returned");
65
66 return NULL;
67 }
So sem_{timed}wait does not act on cancellation, pthread_cleanup_pop executes
'cleanup' and then 'puts' acts on cancellation. Since pthread_cleanup_pop
removed the clean-up handler, it will ran only once and thus it won't accuse
an error to indicate sem_wait has not acted on the cancellation signal.
This patch also fixes this behavior by removing the cancellation point 'puts'.
It also adds some cleanup on all sem_{timed}wait cancel tests.
It partially fixes BZ #18243. Checked on x86_64.
[BZ #18243]
* nptl/pthreadP.h (__pthread_testcancel): Add prototype and hidden_proto.
* nptl/pthread_testcancel.c (pthread_cancel): Add internal aliais
definition.
* nptl/sem_timedwait.c (sem_timedwait): Add cancellation check for
uncontended case.
* nptl/sem_wait.c (__new_sem_wait): Likewise.
* nptl/tst-cancel12.c (cleanup): Remove wrong cancellation point.
(tf): Fix check for uncontended case.
(do_test): Likewise.
* nptl/tst-cancel13.c (cleanup): Remove wrong cancellation point.
(tf): Fix check for uncontended case.
(do_test): Likewise.
* nptl/tst-cancel14.c (cleanup): Remove wrong cancellation point.
(tf): Fix check for uncontended case.
(do_test): Likewise.
* nptl/tst-cancel15.c (cleanup): Remove wrong cancellation point.
(tf): Fix check for uncontended case.
(do_test): Likewise.
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2003-06-07 Ulrich Drepper <drepper@redhat.com>
* cleanup_routine.c: New file.
* Versions (libpthread) [GLIBC_2.3.3]: Add __pthread_cleanup_routine.
* sysdeps/pthread/pthread.h: Add support for fully exception-based
cleanup handling.
* Makefile (libpthread-routines): Add cleanup_routine.
Add more CFLAGS variables to compile with exceptions. Add comments
why which file needs unwind tables.
(tests) [have-forced-unwind==yes]: Add tst-cancelx* and tst-cleanupx*
tests.
* tst-cancelx1.c: New file.
* tst-cancelx2.c: New file.
* tst-cancelx3.c: New file.
* tst-cancelx4.c: New file.
* tst-cancelx5.c: New file.
* tst-cancelx6.c: New file.
* tst-cancelx7.c: New file.
* tst-cancelx8.c: New file.
* tst-cancelx9.c: New file.
* tst-cancelx10.c: New file.
* tst-cancelx11.c: New file.
* tst-cancelx12.c: New file.
* tst-cancelx13.c: New file.
* tst-cancelx14.c: New file.
* tst-cancelx15.c: New file.
* tst-cleanupx0.c: New file.
* tst-cleanupx0.expect: New file.
* tst-cleanupx1.c: New file.
* tst-cleanupx2.c: New file.
* tst-cleanupx3.c: New file.
* tst-cleanup0.c: Make standard compliant.
* tst-cleanup1.c: Likewise.
* sysdeps/unix/sysv/linux/sem_timedwait.c: Add cancellation support.
* sysdeps/unix/sysv/linux/sem_wait.c: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/sem_wait.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Likewise.
* sysdeps/i386/tcb-offsets.sym: Add RESULT, CANCELHANDLING, and
CLEANUP_JMP_BUF.
* sysdeps/x86_64/tcb-offsets.sym: Likewise.
* tst-cancel12.c: New file.
* tst-cancel13.c: New file.
* tst-cancel14.c: New file.
* tst-cancel15.c: New file.
* Makefile (tests): Add tst-cancel12, tst-cancel13, tst-cancel14,
and tst-cancel15.
* tst-cancel1.c: Add some comments.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Compute relative
timeout correctly.
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