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glibc/sysdeps/unix/sysv/linux/i386
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H.J. Lu 3650e1d928 x86: Update vfork to pop shadow stack 
The shadow stack prevents us from pushing the saved return PC onto
the stack and returning normally.  Instead we pop the shadow stack
and return directly.  This is the safest way to return and ensures
any stack manipulations done by the vfork'd child doesn't cause the
parent to terminate when CET is enabled.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

	* sysdeps/unix/sysv/linux/i386/vfork.S (SYSCALL_ERROR_HANDLER):
	Redefine if shadow stack is enabled.
	(SYSCALL_ERROR_LABEL): Likewise.
	(__vfork): Pop shadow stack and jump back to to caller directly
	when shadow stack is in use.
	* sysdeps/unix/sysv/linux/x86_64/vfork.S (SYSCALL_ERROR_HANDLER):
	Redefine if shadow stack is enabled.
	(SYSCALL_ERROR_LABEL): Likewise.
	(__vfork): Pop shadow stack and jump back to to caller directly
	when shadow stack is in use.
2018-07-24 05:21:07 -07:00
..
i686 Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
i786 Move remaining nptl/sysdeps/unix/sysv/linux/i386/ files. 2014-05-14 13:37:40 -07:00
____longjmp_chk.S x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
_exit.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
brk.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
c++-types.data x86: Move abilist files out of nptl/ subdirectories. 2014-05-14 15:45:23 -07:00
clone.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
configure Require Linux kernel 3.2 or later on x86 / x86_64. 2017-05-08 10:45:20 +00:00
configure.ac Require Linux kernel 3.2 or later on x86 / x86_64. 2017-05-08 10:45:20 +00:00
dl-librecon.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-sysdep.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fxstat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fxstatat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
get_clockfreq.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getmsg.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
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. 2018-01-01 00:32:25 +00:00
jmp_buf-macros.h Add jmp_buf-macros.h 2017-11-09 05:10:03 -08:00
kernel-features.h Refactor Linux ARCH_FORK implementation 2018-03-07 17:39:40 -03:00
ld.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libanl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libBrokenLocale.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libc-do-syscall.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-lowlevellock.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc.abilist Add the statx function 2018-07-10 16:14:45 +02:00
libcrypt.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libdl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libm.abilist Add narrowing divide functions. 2018-05-17 00:40:52 +00:00
libnsl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libpthread.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libresolv.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
librt.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libthread_db.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libutil.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
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 ld.so: Introduce struct dl_exception 2017-08-10 16:54:57 +02:00
lockf64.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
lowlevellock.h Define GEN_AS_CONST_HEADERS when generating header files [BZ #22792] 2018-02-23 11:29:39 -08:00
lowlevellock.S nptl: Remove __ASSUME_PRIVATE_FUTEX 2018-05-17 04:25:10 -07:00
lxstat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
makecontext.S i386: In makecontext, align the stack before calling exit [BZ #22667] 2018-01-04 18:47:35 +01:00
Makefile i386: Fix i386 sigaction sa_restorer initialization (BZ#21269) 2018-03-05 18:08:27 -03:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putmsg.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
shlib-versions Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
sigaction.c linux: Consolidate sigaction implementation 2018-04-05 17:09:50 -03:00
sigcontextinfo.h Remove unused frame.h header, sigcontextinfo.h macros. 2018-03-22 16:40:51 +00:00
smp.h Avoid cancellable I/O primitives in ld.so. 2018-06-12 09:53:04 -04:00
startup.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
syscalls.list posix: Consolidate Linux waitpid syscall 2017-05-18 18:06:47 -03:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
time.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-bz21269.c Linux i386: tst-bz21269 triggers SIGBUS on some kernels 2018-03-29 11:42:24 +02:00
ucontext_i.sym * sysdeps/unix/sysv/linux/i386/ucontext_i.h: File removed. 2005-12-22 05:18:34 +00:00
Versions Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
vfork.S x86: Update vfork to pop shadow stack 2018-07-24 05:21:07 -07:00
xstat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00