diff options
| author | Michael Pratt <mpratt@google.com> | 2022-04-26 14:42:34 -0400 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2022-04-28 16:29:07 +0000 |
| commit | 4bb45f7549548add8222aa4f3040d0e2120691a9 (patch) | |
| tree | 7fc3617f18c4ffdbba55f0f63a6f9ea9cfeb7f3e /src/runtime/sys_linux_arm.s | |
| parent | 17371eea25f203575389f85b33ddb58792d25e84 (diff) | |
| download | go-4bb45f7549548add8222aa4f3040d0e2120691a9.tar.xz | |
runtime: mark sigtramp as TOPFRAME
Currently throw() in the signal handler results in "fatal error: unknown
return pc from runtime.sigreturn ...".
Marking sigtramp as TOPFRAME allows gentraceback to stop tracebacks at
the end of a signal handler, since there is not much beyond sigtramp.
This is just done on Linux for now, but may apply to other Unix systems
as well.
Change-Id: I96edcb945283f417a5bfe00ce2fb2b1a0d578692
Reviewed-on: https://go-review.googlesource.com/c/go/+/402190
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/runtime/sys_linux_arm.s')
| -rw-r--r-- | src/runtime/sys_linux_arm.s | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/sys_linux_arm.s b/src/runtime/sys_linux_arm.s index 201940b4e6..66bf40328e 100644 --- a/src/runtime/sys_linux_arm.s +++ b/src/runtime/sys_linux_arm.s @@ -566,7 +566,7 @@ TEXT runtime·sigfwd(SB),NOSPLIT,$0-16 MOVW R4, R13 RET -TEXT runtime·sigtramp(SB),NOSPLIT,$0 +TEXT runtime·sigtramp(SB),NOSPLIT|TOPFRAME,$0 // Reserve space for callee-save registers and arguments. MOVM.DB.W [R4-R11], (R13) SUB $16, R13 |