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* [Bug dynamic-link/31187] New: Some CET tests fail with GCC 14
@ 2023-12-22 16:27 hjl.tools at gmail dot com
2024-01-01 23:56 ` [Bug dynamic-link/31187] " cvs-commit at gcc dot gnu.org
2024-01-01 23:58 ` hjl.tools at gmail dot com
0 siblings, 2 replies; 3+ messages in thread
From: hjl.tools at gmail dot com @ 2023-12-22 16:27 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=31187
Bug ID: 31187
Summary: Some CET tests fail with GCC 14
Product: glibc
Version: 2.39
Status: NEW
Severity: normal
Priority: P2
Component: dynamic-link
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
Target: x86_64
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 -fcf-protection=branch will override -fcf-protection.
But
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 the same as
-fcf-protection
The workaround is to use
-fcf-protection -fcf-protection=none -fcf-protection=branch
--
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^ permalink raw reply [flat|nested] 3+ messages in thread* [Bug dynamic-link/31187] Some CET tests fail with GCC 14 2023-12-22 16:27 [Bug dynamic-link/31187] New: Some CET tests fail with GCC 14 hjl.tools at gmail dot com @ 2024-01-01 23:56 ` cvs-commit at gcc dot gnu.org 2024-01-01 23:58 ` hjl.tools at gmail dot com 1 sibling, 0 replies; 3+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2024-01-01 23:56 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=31187 --- Comment #1 from Sourceware Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <hjl@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b5dcccfb12385ee492eb074f6beb9ead56b5e5fd commit b5dcccfb12385ee492eb074f6beb9ead56b5e5fd Author: H.J. Lu <hjl.tools@gmail.com> Date: Mon Jan 1 07:55:18 2024 -0800 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> -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug dynamic-link/31187] Some CET tests fail with GCC 14 2023-12-22 16:27 [Bug dynamic-link/31187] New: Some CET tests fail with GCC 14 hjl.tools at gmail dot com 2024-01-01 23:56 ` [Bug dynamic-link/31187] " cvs-commit at gcc dot gnu.org @ 2024-01-01 23:58 ` hjl.tools at gmail dot com 1 sibling, 0 replies; 3+ messages in thread From: hjl.tools at gmail dot com @ 2024-01-01 23:58 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=31187 H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |2.39 Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> --- Fixed for 2.39. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-01-01 23:58 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-12-22 16:27 [Bug dynamic-link/31187] New: Some CET tests fail with GCC 14 hjl.tools at gmail dot com 2024-01-01 23:56 ` [Bug dynamic-link/31187] " cvs-commit at gcc dot gnu.org 2024-01-01 23:58 ` hjl.tools at gmail dot com
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