| commit | ff42c82259f9cceca72a6309110435e809949337 | [log] [tgz] |
|---|---|---|
| author | global-integration-roller <global-integration-roller@fuchsia.infra.roller.fuchsia-infra.iam.gserviceaccount.com> | Tue Oct 15 20:06:59 2024 +0000 |
| committer | Copybara-Service <copybara-worker@google.com> | Tue Oct 15 13:08:39 2024 -0700 |
| tree | d5c4b6da51556934908a3e5ae9474c0a7b4f0423 | |
| parent | 14b58c057e20f47a7f1d2778b38df0f803097014 [diff] |
[roll] Roll fuchsia [superproject] Roll llvm-project/libc [libc][setjmp] fix setjmp test via naked fn attr (#88054)
This would consistently fail for me locally, to the point where I could not run
ninja libc-unit-tests without ninja libc_setjmp_unittests failing.
Turns out that since I enabled -ftrivial-auto-var-init=pattern in
commit 1d5c16d ("[libc] default enable -ftrivial-auto-var-init=pattern
(#78776)")
this has been a problem. Our x86_64 setjmp definition disabled -Wuninitialized,
so we wound up clobbering these registers and instead backing up
0xAAAAAAAAAAAAAAAA rather than the actual register value.
Use `naked` function attribute to avoid function prolog/epilog.
GitOrigin-RevId: 1df12167ef62a4e075933b414a85254f9fbd9279
Original-Revision: fcb1d5a948da164d663abe34ca918bce8402d463
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1138260
Original-Revision: dc09938e6da583b3e3e1e911245c89071610fd35
Change-Id: I7d686c5b89c2a39ae249a349bc3c52af513065bb
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