H.J. Lu 541641a3de x86/cet: Enable shadow stack during startup ... Previously, CET was enabled by kernel before passing control to user space and the startup code must disable CET if applications or shared libraries aren't CET enabled. Since the current kernel only supports shadow stack and won't enable shadow stack before passing control to user space, we need to enable shadow stack during startup if the application and all shared library are shadow stack enabled. There is no need to disable shadow stack at startup. Shadow stack can only be enabled in a function which will never return. Otherwise, shadow stack will underflow at the function return. 1. GL(dl_x86_feature_1) is set to the CET features which are supported by the processor and are not disabled by the tunable. Only non-zero features in GL(dl_x86_feature_1) should be enabled. After enabling shadow stack with ARCH_SHSTK_ENABLE, ARCH_SHSTK_STATUS is used to check if shadow stack is really enabled. 2. Use ARCH_SHSTK_ENABLE in RTLD_START in dynamic executable. It is safe since RTLD_START never returns. 3. Call arch_prctl (ARCH_SHSTK_ENABLE) from ARCH_SETUP_TLS in static executable. Since the start function using ARCH_SETUP_TLS never returns, it is safe to enable shadow stack in ARCH_SETUP_TLS.		2024-01-01 05:22:48 -08:00
..
64	elf: Ignore GLIBC_TUNABLES for setuid/setgid binaries	2023-11-21 16:15:42 -03:00
fpu	x86: Do not raises floating-point exception traps on fesetexceptflag (BZ 30990)	2023-12-19 15:12:38 -03:00
htl	htl: Add tcb-offsets.sym for x86_64	2023-04-03 01:15:30 +02:00
multiarch	x86: Unifies 'strlen-evex' and 'strlen-evex512' implementations.	2023-12-18 12:38:01 -06:00
nptl	x86/cet: Sync with Linux kernel 6.6 shadow stack interface	2024-01-01 05:22:48 -08:00
sys	hurd: Drop REG_GSFS and REG_ESDS from x86_64's ucontext	2023-09-28 00:10:13 +02:00
x32	Parameterize op_t from memcopy.h	2023-02-06 16:19:35 -03:00
____longjmp_chk.S
__longjmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
_mcount.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
abort-instr.h
add_n.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
addmul_1.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
bsd-_setjmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
bsd-setjmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
configure	configure: Use autoconf 2.71	2023-07-17 10:08:10 -04:00
configure.ac
crti.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
crtn.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
dl-cache.h	x86: Make dl-cache.h and readelflib.c not Linux-specific	2023-06-26 10:04:31 -03:00
dl-hwcaps-subdirs.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
dl-irel.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
dl-machine.h	x86/cet: Enable shadow stack during startup	2024-01-01 05:22:48 -08:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
dl-runtime.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
dl-tls.c	elf: Fix slow tls access after dlopen [BZ #19924]	2023-09-01 08:21:37 +01:00
dl-tls.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
dl-tlsdesc.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
dl-tlsdesc.S	x86-64: Fix the tcb field load for x32 [BZ #31185]	2023-12-22 05:37:17 -08:00
dl-trampoline.h	Fix misspellings in sysdeps/x86_64 -- BZ 25337.	2023-05-23 10:25:11 +00:00
dl-trampoline.S	elf: Remove LD_PROFILE for static binaries	2023-11-21 16:15:42 -03:00
ffs.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
ffsll.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
ifuncmain8.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
ifuncmod8.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
Implies
isa-default-impl.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
isa.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
jmpbuf-offsets.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
jmpbuf-unwind.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
l10nflist.c
link-defines.sym
locale-defines.sym
localplt.data
lshift.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
machine-gmon.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
Makefile	nptl: move tst-x86-64-tls-1 to nptl-only tests	2023-05-01 12:59:33 +02:00
memchr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
memcmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
memcmpeq.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
memcpy_chk.S	string: Ensure *_chk routines have their hidden builtin definition available	2023-07-05 16:59:48 +02:00
memcpy.S	x86_64: Fix build with --disable-multiarch (BZ 30721)	2023-08-10 10:29:29 -03:00
memmove_chk.S	string: Ensure *_chk routines have their hidden builtin definition available	2023-07-05 16:59:48 +02:00
memmove.S	x86_64: Fix build with --disable-multiarch (BZ 30721)	2023-08-10 10:29:29 -03:00
mempcpy_chk.S	string: Ensure *_chk routines have their hidden builtin definition available	2023-07-05 16:59:48 +02:00
mempcpy.S
memrchr.S	string: Add libc_hidden_proto for memrchr	2023-02-08 17:13:58 -03:00
memset_chk.S	string: Ensure *_chk routines have their hidden builtin definition available	2023-07-05 16:59:48 +02:00
memset.S	x86_64: Fix build with --disable-multiarch (BZ 30721)	2023-08-10 10:29:29 -03:00
mp_clz_tab.c
mul_1.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
preconfigure	configure: Use autoconf 2.71	2023-07-17 10:08:10 -04:00
preconfigure.ac
rawmemchr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
rshift.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
rtld-offsets.sym
setjmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
stackguard-macros.h
stackinfo.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
start.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
stpcpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
stpncpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strcasecmp_l-nonascii.c
strcasecmp_l.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strcasecmp.S
strcat.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strchr-isa-default-impl.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strchr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strchrnul.S	string: Add libc_hidden_proto for strchrnul	2023-02-08 17:13:56 -03:00
strcmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strcpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strcspn-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strcspn.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strlen.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strncase_l-nonascii.c
strncase_l.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strncase.S
strncat.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strncmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strncpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strnlen.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strpbrk-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strpbrk.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strrchr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strspn-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
strspn.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
sub_n.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
submul_1.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
sysdep.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tls_get_addr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tlsdesc.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tlsdesc.sym
tst-audit3.c
tst-audit4-aux.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-audit4.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10-aux.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-audit10.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-audit.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-auditmod3a.c
tst-auditmod3b.c
tst-auditmod4a.c
tst-auditmod4b.c
tst-auditmod5a.c
tst-auditmod5b.c
tst-auditmod6a.c
tst-auditmod6b.c
tst-auditmod6c.c
tst-auditmod7a.c
tst-auditmod7b.c
tst-auditmod10a.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-auditmod10b.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-avx512-aux.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-avx512.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-avx512mod.c
tst-avx-aux.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-avx.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-avxmod.c
tst-glibc-hwcaps.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-platform-1.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-platformmod-1.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-platformmod-2.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-quad1.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-quadmod1pie.S
tst-quadmod2.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-quadmod2pie.S
tst-rsi-strlen.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-rsi-wcslen.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-split-dynreloc.c
tst-split-dynreloc.lds
tst-sse.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
tst-ssemod.c
varshift.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
Versions
wcpcpy-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcpcpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcpncpy-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcpncpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcscat-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcscat.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcschr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcscmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcscpy-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcscpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcslen.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsncat-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsncat.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsncmp-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsncmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsncpy-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsncpy.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsnlen-generic.c	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsnlen.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wcsrchr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wmemchr.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wmemcmp.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wmemset_chk.S	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00
wmemset.S
wordcopy.c
x86-lp_size.h	Update copyright dates with scripts/update-copyrights	2023-01-06 21:14:39 +00:00