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faaee1f07e
glibc/sysdeps
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H.J. Lu faaee1f07e x86: Support shadow stack pointer in setjmp/longjmp 
Save and restore shadow stack pointer in setjmp and longjmp to support
shadow stack in Intel CET.  Use feature_1 in tcbhead_t to check if
shadow stack is enabled before saving and restoring shadow stack pointer.

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

	* sysdeps/i386/__longjmp.S: Include <jmp_buf-ssp.h>.
	(__longjmp): Restore shadow stack pointer if shadow stack is
	enabled, SHADOW_STACK_POINTER_OFFSET is defined and __longjmp
	isn't defined for __longjmp_cancel.
	* sysdeps/i386/bsd-_setjmp.S: Include <jmp_buf-ssp.h>.
	(_setjmp): Save shadow stack pointer if shadow stack is enabled
	and SHADOW_STACK_POINTER_OFFSET is defined.
	* sysdeps/i386/bsd-setjmp.S: Include <jmp_buf-ssp.h>.
	(setjmp): Save shadow stack pointer if shadow stack is enabled
	and SHADOW_STACK_POINTER_OFFSET is defined.
	* sysdeps/i386/setjmp.S: Include <jmp_buf-ssp.h>.
	(__sigsetjmp): Save shadow stack pointer if shadow stack is
	enabled and SHADOW_STACK_POINTER_OFFSET is defined.
	* sysdeps/unix/sysv/linux/i386/____longjmp_chk.S: Include
	<jmp_buf-ssp.h>.
	(____longjmp_chk): Restore shadow stack pointer if shadow stack
	is enabled and SHADOW_STACK_POINTER_OFFSET is defined.
	* sysdeps/unix/sysv/linux/x86/Makefile (gen-as-const-headers):
	Remove jmp_buf-ssp.sym.
	* sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S: Include
	<jmp_buf-ssp.h>.
	(____longjmp_chk): Restore shadow stack pointer if shadow stack
	is enabled and SHADOW_STACK_POINTER_OFFSET is defined.
	* sysdeps/x86/Makefile (gen-as-const-headers): Add
	jmp_buf-ssp.sym.
	* sysdeps/x86/jmp_buf-ssp.sym: New dummy file.
	* sysdeps/x86_64/__longjmp.S: Include <jmp_buf-ssp.h>.
	(__longjmp): Restore shadow stack pointer if shadow stack is
	enabled, SHADOW_STACK_POINTER_OFFSET is defined and __longjmp
	isn't defined for __longjmp_cancel.
	* sysdeps/x86_64/setjmp.S: Include <jmp_buf-ssp.h>.
	(__sigsetjmp): Save shadow stack pointer if shadow stack is
	enabled and SHADOW_STACK_POINTER_OFFSET is defined.
2018-07-14 05:59:53 -07:00
..
aarch64 aarch64,falkor: Use vector registers for memcpy 2018-06-29 22:45:59 +05:30
alpha Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
arm Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
generic x86: Rename __glibc_reserved1 to feature_1 in tcbhead_t [BZ #22563] 2018-07-14 05:56:46 -07:00
gnu hurd: Fix shmid_ds's shm_segsz field type 2018-06-02 21:52:43 +02:00
hppa Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
htl hurd: Fix missing __pthread_get_cleanup_stack symbol 2018-06-16 10:52:04 +02:00
hurd hurd: Fix reference to _hurd_self_sigstate 2018-06-16 14:07:23 +00:00
i386 x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
ia64 Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
ieee754 ldbl-128ibm-compat: Add printf_size 2018-07-02 10:51:01 -03:00
init_array sysdeps/init_array: Add PREINIT_FUNCTION to crti.S 2018-01-29 10:22:26 -08:00
m68k m68k: Reorganize log1p and significand implementations 2018-06-22 21:34:28 -03:00
mach Add the statx function 2018-07-10 16:14:45 +02:00
microblaze Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
mips Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
nios2 Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
nptl libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
posix Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251) 2018-06-26 13:22:53 -03:00
powerpc Fix powerpc64le build of nan-sign tests (bug 23303). 2018-06-18 11:27:51 +00:00
pthread hurd: fix sigevent's sigev_notify_attributes field type 2018-04-19 21:43:44 +02:00
riscv elf: Unify symbol address run-time calculation [BZ #19818] 2018-04-04 23:09:37 +01:00
s390 Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
sh Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
sparc Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
unix x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
wordsize-32 Use libc_hidden_* for strtoumax (bug 15105). 2018-02-28 14:16:21 +00:00
wordsize-64 Use libc_hidden_* for strtoumax (bug 15105). 2018-02-28 14:16:21 +00:00
x86 x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
x86_64 x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00