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| author | H.J. Lu <hongjiu.lu@intel.com> | 2018-04-20 13:30:13 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2018-04-20 06:30:13 -0700 |
| commit | e95dda951fdf2349d669a6811cdc07f72846e5b3 (patch) | |
| tree | 6cd51c6124f23a670b0018b401b7243b4b03f313 /libgo | |
| parent | fffefbf85f60859c21e6844aa06a0f6ce8cd1cdd (diff) | |
| download | gcc-e95dda951fdf2349d669a6811cdc07f72846e5b3.zip gcc-e95dda951fdf2349d669a6811cdc07f72846e5b3.tar.gz gcc-e95dda951fdf2349d669a6811cdc07f72846e5b3.tar.bz2 | |
Define __CET__ for -fcf-protection and remove -mibt
With revision 259496:
commit b1384095a7c1d06a44b70853372ebe037b2f7867
Author: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Apr 19 15:15:04 2018 +0000
x86: Enable -fcf-protection with multi-byte NOPs
-mibt does nothing and can be removed. Define __CET__ to indicate level
protection with -fcf-protection:
(__CET__ & 1) != 0: -fcf-protection=branch or -fcf-protection=full
(__CET__ & 2) != 0: -fcf-protection=return or -fcf-protection=full
gcc/
PR target/85469
* common/config/i386/i386-common.c (OPTION_MASK_ISA_IBT_SET):
Removed.
(OPTION_MASK_ISA_IBT_UNSET): Likewise.
(ix86_handle_option): Don't handle OPT_mibt.
* config/i386/cet.h: Check __CET__ instead of __IBT__ and
__SHSTK__.
* config/i386/driver-i386.c (host_detect_local_cpu): Remove
has_ibt and ibt.
* config/i386/i386-c.c (ix86_target_macros_internal): Don't
check OPTION_MASK_ISA_IBT nor flag_cf_protection.
(ix86_target_macros): Define __CET__ with flag_cf_protection
for -fcf-protection.
* config/i386/i386.c (isa2_opts): Remove -mibt.
* config/i386/i386.h (TARGET_IBT): Removed.
(TARGET_IBT_P): Likewise.
(ix86_valid_target_attribute_inner_p): Don't check OPT_mibt.
* config/i386/i386.md (nop_endbr): Don't check TARGET_IBT.
* config/i386/i386.opt (mcet): Update help message.
(mshstk): Likewise.
(mibt): Removed.
* doc/invoke.texi: Remove -mibt. Document __CET__. Document
-mcet as an alias for -mshstk.
gcc/testsuite/
PR target/85469
* gcc.target/i386/pr85044.c (dg-options): Remove -mibt.
* gcc.target/i386/sse-26.c (dg-options): Remove -mno-ibt.
From-SVN: r259522
Diffstat (limited to 'libgo')
0 files changed, 0 insertions, 0 deletions