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| author | Austin Clements <austin@google.com> | 2019-10-14 20:10:48 -0400 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2019-10-26 02:52:32 +0000 |
| commit | 8dc1a158e460d7fdaca3c9317405e7c0dca6e443 (patch) | |
| tree | 753df3de871b49d09fe0eae8ca4f774fe178a59d /src/runtime/signal_unix.go | |
| parent | 42aab4b0af5e50071fa8901a038bdc6f1f42b2ed (diff) | |
| download | go-8dc1a158e460d7fdaca3c9317405e7c0dca6e443.tar.gz go-8dc1a158e460d7fdaca3c9317405e7c0dca6e443.zip | |
runtime: add test for signalM
For #10958, #24543.
Change-Id: Ib009a83fe02bc623894f4908fe8f6b266382ba95
Reviewed-on: https://go-review.googlesource.com/c/go/+/201404
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src/runtime/signal_unix.go')
| -rw-r--r-- | src/runtime/signal_unix.go | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/runtime/signal_unix.go b/src/runtime/signal_unix.go index cea65282e0..27552c9f33 100644 --- a/src/runtime/signal_unix.go +++ b/src/runtime/signal_unix.go @@ -412,10 +412,11 @@ func adjustSignalStack(sig uint32, mp *m, gsigStack *gsignalStack) bool { // GOTRACEBACK=crash when a signal is received. var crashing int32 -// testSigtrap is used by the runtime tests. If non-nil, it is called -// on SIGTRAP. If it returns true, the normal behavior on SIGTRAP is -// suppressed. +// testSigtrap and testSigusr1 are used by the runtime tests. If +// non-nil, it is called on SIGTRAP/SIGUSR1. If it returns true, the +// normal behavior on this signal is suppressed. var testSigtrap func(info *siginfo, ctxt *sigctxt, gp *g) bool +var testSigusr1 func(gp *g) bool // sighandler is invoked when a signal occurs. The global g will be // set to a gsignal goroutine and we will be running on the alternate @@ -441,6 +442,10 @@ func sighandler(sig uint32, info *siginfo, ctxt unsafe.Pointer, gp *g) { return } + if sig == _SIGUSR1 && testSigusr1 != nil && testSigusr1(gp) { + return + } + flags := int32(_SigThrow) if sig < uint32(len(sigtable)) { flags = sigtable[sig].flags |