diff options
| author | Cherry Mui <cherryyz@google.com> | 2022-05-10 16:09:54 -0400 |
|---|---|---|
| committer | Cherry Mui <cherryyz@google.com> | 2022-05-10 20:38:07 +0000 |
| commit | aeaf4b0e5b21ea0819b4e862ed86ce44760516bf (patch) | |
| tree | 12c65f885af21f3bed05d347004afcb3d19ff5f3 /src/os/exec | |
| parent | 2ecf747e088fa6568621d719fbdf41c0d9221cc5 (diff) | |
| download | go-aeaf4b0e5b21ea0819b4e862ed86ce44760516bf.tar.xz | |
runtime: not mark save_g NOFRAME on ARM
On ARM, when GOARM<=6 the TLS pointer is fetched via a call to a
kernel helper. This call clobbers LR, even just temporarily. If
the function is NOFRAME, if a profiling signal lands right after
the call returns, the unwinder will find the wrong LR. Not mark it
NOFRAME, so the LR will be saved in the usual way and stack
unwinding should work.
May fix #52829.
Change-Id: I419a31dcf4afbcff8d7ab8f179eec3c477589e60
Reviewed-on: https://go-review.googlesource.com/c/go/+/405482
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/os/exec')
0 files changed, 0 insertions, 0 deletions