H.J. Lu f81ddabffd Linux/x86: Update cancel_jmp_buf to match __jmp_buf_tag [BZ #22563] ... On x86, padding in struct __jmp_buf_tag is used for shadow stack pointer to support shadow stack in Intel Control-flow Enforcemen Technology. Since the cancel_jmp_buf array is passed to setjmp and longjmp by casting it to pointer to struct __jmp_buf_tag, it should be as large as struct __jmp_buf_tag. Otherwise when shadow stack is enabled, setjmp and longjmp will write and read beyond cancel_jmp_buf when saving and restoring shadow stack pointer. This patch adds bits/types/__cancel_jmp_buf_tag.h to define struct __cancel_jmp_buf_tag so that Linux/x86 can add saved_mask to cancel_jmp_buf. Tested natively on i386, x86_64 and x32. Tested hppa-linux-gnu with build-many-glibcs.py. [BZ #22563] * bits/types/__cancel_jmp_buf_tag.h: New file. * sysdeps/unix/sysv/linux/x86/bits/types/__cancel_jmp_buf_tag.h * sysdeps/unix/sysv/linux/x86/pthreaddef.h: Likewise. * sysdeps/unix/sysv/linux/x86/nptl/pthreadP.h: Likewise. * nptl/Makefile (headers): Add bits/types/__cancel_jmp_buf_tag.h. * nptl/descr.h [NEED_SAVED_MASK_IN_CANCEL_JMP_BUF] (pthread_unwind_buf): Add saved_mask to cancel_jmp_buf. * sysdeps/nptl/pthread.h: Include <bits/types/__cancel_jmp_buf_tag.h>. (__pthread_unwind_buf_t): Use struct __cancel_jmp_buf_tag with __cancel_jmp_buf. * sysdeps/unix/sysv/linux/hppa/pthread.h: Likewise.		2017-12-19 02:44:04 -08:00
..
bits	Linux: Introduce <bits/mman-shared.h>	2017-11-24 17:55:59 +01:00
sys	Fix mcontext_t sigcontext namespace (bug 21457).	2017-08-30 22:02:04 +00:00
____longjmp_chk.c	Fix struct sigaltstack namespace (bug 21517).	2017-06-05 10:17:46 +00:00
arch-fork.h	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
atomic-machine.h	Optimize generic spinlock code and use C11 like atomic macros.	2017-06-06 09:41:56 +02:00
brk.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
c++-types.data
clone.S	hppa: Fix clone exit syscall argument passing (BZ#21512)	2017-07-17 14:25:40 -03:00
fxstat.c
fxstatat.c
getcontext.S	Fix return pointer save and PIC register restore in __getcontext and	2017-10-01 11:58:04 -04:00
getdents64.c
Implies
ipc_priv.h	hppa: set __IPC_64 as zero for SysV IPC calls	2017-03-07 09:12:48 +01:00
jmp_buf-macros.h	Add jmp_buf-macros.h	2017-11-09 05:10:03 -08:00
kernel_sigaction.h
kernel_stat.h
kernel-features.h	Use execveat syscall in fexecve (bug 22134)	2017-09-19 16:19:14 +02:00
ld.abilist
libanl.abilist
libBrokenLocale.abilist
libc.abilist	Add _Float32 function aliases.	2017-12-07 00:48:31 +00:00
libcrypt.abilist
libdl.abilist
libm.abilist	Add _Float32 function aliases.	2017-12-07 00:48:31 +00:00
libnsl.abilist
libpthread.abilist
libresolv.abilist
librt.abilist
libthread_db.abilist
libutil.abilist
localplt.data	ld.so: Introduce struct dl_exception	2017-08-10 16:54:57 +02:00
lxstat.c
makecontext.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
Makefile
profil-counter.h	Rename struct ucontext tag (bug 21457).	2017-06-26 22:03:58 +00:00
pt-vfork.S	Add CFI annotation.	2017-07-16 12:46:50 -04:00
pthread.h	Linux/x86: Update cancel_jmp_buf to match __jmp_buf_tag [BZ #22563]	2017-12-19 02:44:04 -08:00
pthreadP.h
setcontext.S	Fix return pointer save and PIC register restore in __getcontext and	2017-10-01 11:58:04 -04:00
shlib-versions
swapcontext.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
syscall.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
syscalls.list	Consolidate Linux send implementation	2017-03-09 15:22:06 +01:00
sysdep.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
sysdep.h	Linux: Consolidate {RTLD_}SINGLE_THREAD_P definition	2017-10-11 14:27:24 -03:00
ucontext_i.sym
umount.c
utimes.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
Versions
xstat.c