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H.J. Lu 9e38f455a6 x86: Add --enable-cet=permissive 
When CET is enabled, it is an error to dlopen a non CET enabled shared
library in CET enabled application.  It may be desirable to make CET
permissive, that is disable CET when dlopening a non CET enabled shared
library.  With the new --enable-cet=permissive configure option, CET is
disabled when dlopening a non CET enabled shared library.

Add DEFAULT_DL_X86_CET_CONTROL to config.h.in:

 /* The default value of x86 CET control.  */
 #define DEFAULT_DL_X86_CET_CONTROL cet_elf_property

which enables CET features based on ELF property note.

--enable-cet=permissive it to

 /* The default value of x86 CET control.  */
 #define DEFAULT_DL_X86_CET_CONTROL cet_permissive

which enables CET features permissively.

Update tst-cet-legacy-5a, tst-cet-legacy-5b, tst-cet-legacy-6a and
tst-cet-legacy-6b to check --enable-cet and --enable-cet=permissive.
 		2020-05-18 08:38:53 -07:00
..
aarch64 aarch64: fix strcpy and strnlen for big-endian [BZ #25824] 2020-05-15 12:15:56 +01:00
alpha Update alpha libm-test-ulps 2020-04-08 13:52:45 -03:00
arm arm: XFAIL string/tst-memmove-overflow due to bug 25620 2020-05-13 16:48:26 +02:00
csky semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
generic elf: Implement __libc_early_init 2020-04-24 22:32:09 +02:00
gnu Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hppa semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
htl pthread: Move robust mutex tests from nptl to sysdeps/pthread 2020-02-16 14:43:54 +00:00
hurd C11 threads: Move implementation to sysdeps/pthread 2020-02-09 13:56:48 +01:00
i386 x86: Move CET control to _dl_x86_feature_control [BZ #25887] 2020-05-18 06:15:02 -07:00
ia64 semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
ieee754 float128: use builtin_signbitf128 always 2020-05-04 13:18:45 -05:00
m68k math: Remove inline math tests 2020-03-19 11:45:44 -03:00
mach Remove NO_CTORS_DTORS_SECTIONS macro 2020-05-18 15:39:34 +02:00
microblaze semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
mips Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 2020-04-30 08:52:08 -05:00
nios2 semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
nptl Linux: set_robust_list syscall number is always available 2020-03-03 12:49:44 +01:00
posix posix: Fix system error return value [BZ #25715] 2020-03-23 18:00:38 -03:00
powerpc powerpc: Optimized stpcpy for POWER9 2020-05-18 08:26:22 -05:00
pthread pthread: Fix building tst-robust8 with nptl 2020-02-16 23:53:45 +01:00
riscv semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
s390 semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
sh semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
sparc semaphore: consolidate arch headers into a generic one 2020-05-06 13:07:12 -07:00
unix x86: Add --enable-cet=permissive 2020-05-18 08:38:53 -07:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
x86 x86: Add --enable-cet=permissive 2020-05-18 08:38:53 -07:00
x86_64 Linux: Remove remnants of the getcpu cache 2020-05-16 15:47:51 +02:00