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* [Bug c/109489] New: [ubsan] Support -fsanitize-trap=
@ 2023-04-12 18:07 i at maskray dot me
2023-04-12 18:09 ` [Bug sanitizer/109489] " pinskia at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: i at maskray dot me @ 2023-04-12 18:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109489
Bug ID: 109489
Summary: [ubsan] Support -fsanitize-trap=
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: i at maskray dot me
Target Milestone: ---
Clang has supported -fsanitize-trap=undefined and many fine-grained options[1]
e.g. -fsanitize-trap=alignment since 2015.
-fsanitize-undefined-trap-on-error is a deprecated alias for
-fsanitize-trap=undefined in Clang. -fsanitize-trap= provides fine-grained
control over putting specific checks into the trap mode, and it provides a
unified interface with -fsanitize= and -fsanitize-recover=.
As an example, -fsanitize=undefined in the normal mode may increase the binary
size a lot.
The user may put some checks into the trap mode while keeping the rest in the
normal mode (-fsanitize-trap=alignment,null) to make the binary smaller.
[1]: https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug sanitizer/109489] [ubsan] Support -fsanitize-trap= 2023-04-12 18:07 [Bug c/109489] New: [ubsan] Support -fsanitize-trap= i at maskray dot me @ 2023-04-12 18:09 ` pinskia at gcc dot gnu.org 2023-04-17 4:22 ` i at maskray dot me 2023-04-17 4:59 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-04-12 18:09 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109489 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement Component|c |sanitizer CC| |dodji at gcc dot gnu.org, | |dvyukov at gcc dot gnu.org, | |jakub at gcc dot gnu.org, | |kcc at gcc dot gnu.org, | |marxin at gcc dot gnu.org ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug sanitizer/109489] [ubsan] Support -fsanitize-trap= 2023-04-12 18:07 [Bug c/109489] New: [ubsan] Support -fsanitize-trap= i at maskray dot me 2023-04-12 18:09 ` [Bug sanitizer/109489] " pinskia at gcc dot gnu.org @ 2023-04-17 4:22 ` i at maskray dot me 2023-04-17 4:59 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: i at maskray dot me @ 2023-04-17 4:22 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109489 Fangrui Song <i at maskray dot me> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #1 from Fangrui Song <i at maskray dot me> --- This has been implemented in https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=2c7cfc7b418564a2f1f0e7a5b38dec7013ba5e18 (2022-06). Sorry that I did not check the trunk GCC. https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html says "The -fsanitize-undefined-trap-on-error option is deprecated equivalent of -fsanitize-trap=all." (as expected). ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug sanitizer/109489] [ubsan] Support -fsanitize-trap= 2023-04-12 18:07 [Bug c/109489] New: [ubsan] Support -fsanitize-trap= i at maskray dot me 2023-04-12 18:09 ` [Bug sanitizer/109489] " pinskia at gcc dot gnu.org 2023-04-17 4:22 ` i at maskray dot me @ 2023-04-17 4:59 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-04-17 4:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109489 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |13.0 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- r13-1164-g2c7cfc7b418564 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-04-17 4:59 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-04-12 18:07 [Bug c/109489] New: [ubsan] Support -fsanitize-trap= i at maskray dot me 2023-04-12 18:09 ` [Bug sanitizer/109489] " pinskia at gcc dot gnu.org 2023-04-17 4:22 ` i at maskray dot me 2023-04-17 4:59 ` pinskia at gcc dot gnu.org
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