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authorIan Lance Taylor <iant@golang.org>2015-12-11 17:16:48 -0800
committerIan Lance Taylor <iant@golang.org>2016-04-01 04:13:44 +0000
commitea306ae625d001a43ef20163739593a21be51f97 (patch)
tree9123485cd4112995217584ee66e39c6f584533b2 /src/runtime/sys_linux_386.s
parentb64f549ba95fb9115afb1db8ae594b9442c45a6e (diff)
downloadgo-ea306ae625d001a43ef20163739593a21be51f97.tar.xz
runtime: support symbolic backtrace of C code in a cgo crash
The new function runtime.SetCgoTraceback may be used to register stack traceback and symbolizer functions, written in C, to do a stack traceback from cgo code. There is a sample implementation of runtime.SetCgoSymbolizer at github.com/ianlancetaylor/cgosymbolizer. Just importing that package is sufficient to get symbolic C backtraces. Currently only supported on linux/amd64. Change-Id: If96ee2eb41c6c7379d407b9561b87557bfe47341 Reviewed-on: https://go-review.googlesource.com/17761 Reviewed-by: Austin Clements <austin@google.com>
Diffstat (limited to 'src/runtime/sys_linux_386.s')
-rw-r--r--src/runtime/sys_linux_386.s3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/runtime/sys_linux_386.s b/src/runtime/sys_linux_386.s
index 3bf5eb0df4..4fe07e0837 100644
--- a/src/runtime/sys_linux_386.s
+++ b/src/runtime/sys_linux_386.s
@@ -232,6 +232,9 @@ TEXT runtime·sigtramp(SB),NOSPLIT,$12
CALL runtime·sigtrampgo(SB)
RET
+TEXT runtime·cgoSigtramp(SB),NOSPLIT,$0
+ JMP runtime·sigtramp(SB)
+
TEXT runtime·sigreturn(SB),NOSPLIT,$0
MOVL $173, AX // rt_sigreturn
// Sigreturn expects same SP as signal handler,