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7a25d6a84d
glibc/sysdeps/unix/sysv/linux/i386
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Nick Alcock 7a25d6a84d x86, pthread_cond_*wait: Do not depend on %eax not being clobbered 
The x86-specific versions of both pthread_cond_wait and
pthread_cond_timedwait have (in their fall-back-to-futex-wait slow
paths) calls to __pthread_mutex_cond_lock_adjust followed by
__pthread_mutex_unlock_usercnt, which load the parameters before the
first call but then assume that the first parameter, in %eax, will
survive unaffected.  This happens to have been true before now, but %eax
is a call-clobbered register, and this assumption is not safe: it could
change at any time, at GCC's whim, and indeed the stack-protector canary
checking code clobbers %eax while checking that the canary is
uncorrupted.

So reload %eax before calling __pthread_mutex_unlock_usercnt.  (Do this
unconditionally, even when stack-protection is not in use, because it's
the right thing to do, it's a slow path, and anything else is dicing
with death.)

	* sysdeps/unix/sysv/linux/i386/pthread_cond_timedwait.S: Reload
	call-clobbered %eax on retry path.
	* sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S: Likewise.
2016-03-23 13:40:14 +01:00
..
i686 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
i786 Move remaining nptl/sysdeps/unix/sysv/linux/i386/ files. 2014-05-14 13:37:40 -07:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
_exit.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
alphasort64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
arch-fork.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
brk.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
c++-types.data x86: Move abilist files out of nptl/ subdirectories. 2014-05-14 15:45:23 -07:00
clone.S posix: New Linux posix_spawn{p} implementation 2016-03-07 11:53:47 +07:00
configure Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
configure.ac Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
dl-librecon.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fcntl.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fxstat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fxstatat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
get_clockfreq.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getdents64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getmsg.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getrlimit64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
glob64.c Remove pre-ISO C support 2012-01-07 23:57:22 -05:00
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
init-first.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
kernel-features.h Adjust kernel-features.h defaults for socket syscalls. 2016-03-15 21:09:33 +00:00
ld.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libanl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libBrokenLocale.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libc-do-syscall.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc-lowlevellock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libcrypt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libdl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libm.abilist Fix lgamma setting signgam for ISO C (bug 15421). 2015-11-20 22:49:59 +00:00
libnsl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libpthread.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libresolv.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
librt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libthread_db.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libutil.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
lll_timedlock_wait.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
lll_timedwait_tid.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
localplt.data Support PLT and GOT references in local PIC check 2015-10-14 06:00:02 -07:00
lockf64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lowlevellock.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lowlevellock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lowlevelrobustlock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lxstat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Makefile Apply -fomit-frame-pointer only to .o/.os files 2015-10-21 09:05:01 -07:00
mmap.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
olddirent.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldgetrlimit64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
posix_fadvise64.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_broadcast.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_signal.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_timedwait.S x86, pthread_cond_*wait: Do not depend on %eax not being clobbered 2016-03-23 13:40:14 +01:00
pthread_cond_wait.S x86, pthread_cond_*wait: Do not depend on %eax not being clobbered 2016-03-23 13:40:14 +01:00
putmsg.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
readdir64_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
readdir64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
scandir64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setegid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
seteuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setgid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setgroups.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setregid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setresgid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setresuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setreuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
shlib-versions Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
sigaction.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
smp.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
syscalls.list Fix linux personality syscall wrapper 2015-12-31 00:17:48 +00:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
time.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ucontext_i.sym * sysdeps/unix/sysv/linux/i386/ucontext_i.h: File removed. 2005-12-22 05:18:34 +00:00
Versions Add missing export of fallocate64 on 32-bit platforms. 2009-05-15 21:00:09 -07:00
versionsort64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
vfork.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
xstat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00