glibc/sysdeps/x86
H.J. Lu b5dcccfb12 x86/cet: Add -fcf-protection=none before -fcf-protection=branch
When shadow stack is enabled, some CET tests failed when compiled with
GCC 14:

FAIL: elf/tst-cet-legacy-4
FAIL: elf/tst-cet-legacy-5a
FAIL: elf/tst-cet-legacy-6a

which are caused by

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113039

These tests use -fcf-protection -fcf-protection=branch and assume that
-fcf-protection=branch will override -fcf-protection.  But this GCC 14
commit:

https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=1c6231c05bdcca

changed the -fcf-protection behavior such that

-fcf-protection -fcf-protection=branch

is treated the same as

-fcf-protection

Use

-fcf-protection -fcf-protection=none -fcf-protection=branch

as the workaround.  This fixes BZ #31187.

Tested with GCC 13 and GCC 14 on Intel Tiger Lake.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
2024-01-01 15:53:52 -08:00
..
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abi-note.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
atomic-machine.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
cacheinfo.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
cacheinfo.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
cet-control.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
check-cet.awk Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
configure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
configure.ac x86_64: State assembler is being tested on sysdeps/x86/configure 2022-12-06 13:47:47 -03:00
cpu-features-offsets.sym x86/cet: Enable shadow stack during startup 2024-01-01 05:22:48 -08:00
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float128-abi.h
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jmp_buf-ssp.sym
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linkmap.h
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Makeconfig
Makefile x86/cet: Add -fcf-protection=none before -fcf-protection=branch 2024-01-01 15:53:52 -08:00
readelflib.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
sysdep.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tininess.h
tst-cet-legacy-1.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-cet-legacy-1a.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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tst-cet-legacy-2a.c
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tst-cet-legacy-9-static.c
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tst-cet-legacy-10-static.c
tst-cet-legacy-10.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-cet-legacy-10a-static.c x86/cet: Check CPU_FEATURE_ACTIVE when CET is disabled 2023-12-19 06:57:32 -08:00
tst-cet-legacy-10a.c x86/cet: Check CPU_FEATURE_ACTIVE when CET is disabled 2023-12-19 06:57:32 -08:00
tst-cet-legacy-mod-1.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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tst-isa-level-mod-1-baseline.c
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tst-setjmp-cet.c
tst-shstk-legacy-1-extra.S Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-shstk-legacy-1a-static.c x86/cet: Check legacy shadow stack applications 2023-12-19 06:57:27 -08:00
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tst-shstk-legacy-1c.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tst-shstk-legacy-1d-static.c x86/cet: Check legacy shadow stack code in .init_array section 2023-12-19 06:57:47 -08:00
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