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Adhemerval Zanella c8e73a1492 stdlib: Fix qsort memory leak if callback throws (BZ 32058) 
If the input buffer exceeds the stack auxiliary buffer, qsort will
malloc a temporary one to call mergesort.  Since C++ standard does
allow the callback comparison function to throw [1], the glibc
implementation can potentially leak memory.

The fixes uses a pthread_cleanup_combined_push and
pthread_cleanup_combined_pop, so it can work with and without
exception enables.  The qsort code path that calls malloc now
requires some extra setup and a call to __pthread_cleanup_push
anmd __pthread_cleanup_pop (which should be ok since they just
setup some buffer state).

Checked on x86_64-linux-gnu.

[1] https://timsong-cpp.github.io/cppwp/n4950/alg.c.library#4

Reviewed-by: DJ Delorie <dj@redhat.com>
 		2025-04-02 18:01:55 +00:00
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bits Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
include htl: Fix build error in annexc 2022-01-17 23:18:27 +00:00
Implies
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Makeconfig hurd 64bit: Add missing libanl 2023-05-01 13:36:14 +02:00
Makefile
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Subdirs
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Versions htl: Respect GL(dl_stack_flags) when allocating stacks 2024-03-23 22:48:44 +01:00
dl-support.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dl-thread_gscope_wait.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
flockfile.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
ftrylockfile.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
funlockfile.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
futex-internal.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
libc-lock.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
libc-lockP.h htl: move pthread_once into libc 2025-03-02 15:37:33 +01:00
pt-attr-destroy.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getdetachstate.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getguardsize.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getinheritsched.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getschedparam.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getschedpolicy.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getscope.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getstack.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getstackaddr.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-getstacksize.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-init.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setdetachstate.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setguardsize.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setinheritsched.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setschedparam.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setschedpolicy.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setscope.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setstack.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setstackaddr.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr-setstacksize.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-attr.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-barrier-destroy.c htl: move pthread_barrier_destroy into libc. 2025-02-10 01:39:17 +01:00
pt-barrier-init.c htl: move pthread_barrier_init into libc. 2025-02-10 01:39:17 +01:00
pt-barrier-wait.c htl: move pthread_barrier_wait into libc. 2025-02-10 01:39:17 +01:00
pt-barrier.c htl: stop exporting __pthread_default_barrierattr. 2025-02-10 01:39:17 +01:00
pt-barrierattr-destroy.c htl: move pthread_barrierattr_destroy into libc. 2025-02-10 01:18:17 +01:00
pt-barrierattr-getpshared.c htl: move pthread_barrierattr_getpshared, pthread_barrierattr_setpshared into libc. 2025-02-10 01:39:17 +01:00
pt-barrierattr-init.c htl: move pthread_barrierattr_init into libc. 2025-02-10 01:18:56 +01:00
pt-barrierattr-setpshared.c htl: move pthread_barrierattr_getpshared, pthread_barrierattr_setpshared into libc. 2025-02-10 01:39:17 +01:00
pt-cond-brdcast.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-cond-destroy.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-cond-init.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-cond-signal.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-cond-timedwait.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-cond-wait.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-cond.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-condattr-destroy.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-condattr-getclock.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-condattr-getpshared.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-condattr-init.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-condattr-setclock.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-condattr-setpshared.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-destroy-specific.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-equal.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-getconcurrency.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-getcpuclockid.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-getschedparam.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-getspecific.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-init-specific.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-key-create.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-key-delete.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-key.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-once.c htl: move pthread_once into libc 2025-03-02 15:37:33 +01:00
pt-rwlock-attr.c htl: don't export __pthread_default_rwlockattr anymore. 2025-02-16 23:43:04 +01:00
pt-rwlock-destroy.c htl: move pthread_rwlock_destroy into libc. 2025-02-16 23:42:38 +01:00
pt-rwlock-init.c htl: move pthread_rwlock_init into libc. 2025-02-16 23:43:03 +01:00
pt-rwlock-rdlock.c htl: move pthread_rwlock_{rdlock, timedrdlock, timedwrlock, wrlock, clockrdlock, clockwrlock} into libc. 2025-02-16 23:08:54 +01:00
pt-rwlock-timedrdlock.c htl: move pthread_rwlock_{rdlock, timedrdlock, timedwrlock, wrlock, clockrdlock, clockwrlock} into libc. 2025-02-16 23:08:54 +01:00
pt-rwlock-timedwrlock.c htl: move pthread_rwlock_{rdlock, timedrdlock, timedwrlock, wrlock, clockrdlock, clockwrlock} into libc. 2025-02-16 23:08:54 +01:00
pt-rwlock-tryrdlock.c htl: move pthread_rwlock_tryrdlock, pthread_rwlock_trywrlock into libc. 2025-02-16 22:59:34 +01:00
pt-rwlock-trywrlock.c htl: move pthread_rwlock_tryrdlock, pthread_rwlock_trywrlock into libc. 2025-02-16 22:59:34 +01:00
pt-rwlock-unlock.c htl: move pthread_rwlock_unlock into libc. 2025-02-16 23:08:54 +01:00
pt-rwlock-wrlock.c htl: move pthread_rwlock_{rdlock, timedrdlock, timedwrlock, wrlock, clockrdlock, clockwrlock} into libc. 2025-02-16 23:08:54 +01:00
pt-rwlockattr-destroy.c htl: move pthread_rwlockattr_destroy into libc. 2025-02-16 22:59:16 +01:00
pt-rwlockattr-getpshared.c htl: move pthread_rwlockattr_getpshared, pthread_rwlockattr_setpshared into libc. 2025-02-16 22:59:25 +01:00
pt-rwlockattr-init.c htl: move pthread_rwlockattr_init into libc. 2025-02-16 22:59:07 +01:00
pt-rwlockattr-setpshared.c htl: move pthread_rwlockattr_getpshared, pthread_rwlockattr_setpshared into libc. 2025-02-16 22:59:25 +01:00
pt-setconcurrency.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-setschedparam.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-setschedprio.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-setspecific.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pt-startup.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pthread-functions.h htl: move pthread_rwlock_{rdlock, timedrdlock, timedwrlock, wrlock, clockrdlock, clockwrlock} into libc. 2025-02-16 23:08:54 +01:00
pthread.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
pthreadP.h stdlib: Fix qsort memory leak if callback throws (BZ 32058) 2025-04-02 18:01:55 +00:00
pthread_atfork_compat.h Consolidate pthread_atfork 2021-06-24 10:04:41 -03:00
raise.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-destroy.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-getvalue.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-init.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-post.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-timedwait.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-trywait.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-wait.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
sem-waitfast.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
stdio-lock.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
thrd_current.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
timer_routines.c htl: move pthread_mutex_{lock, unlock, trylock, timedlock, clocklock} 2025-01-29 02:32:36 +01:00
timer_routines.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00