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runtime: install SIGURG handler on C created threads

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Precise stack scan uses SIGURG to trigger a stack scan. We need
    to have Go signal handler installed for SIGURG.
    
    Reviewed-on: https://go-review.googlesource.com/c/159097

From-SVN: r268230
This commit is contained in:
Ian Lance Taylor 2019-01-24 05:31:14 +00:00
parent eea18a4eb0
commit 52c9cfeb08
2 changed files with 3 additions and 3 deletions
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2
gcc/go/gofrontend/MERGE
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@ -1,4 +1,4 @@
e3271f3e09337b951822ba5c596d8cfe3b94508e
d67c4bf0c42b79d54925ba8c5f23278ee6c3efb6
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.

4
libgo/go/runtime/signal_unix.go
View file

@ -142,8 +142,8 @@ func sigInstallGoHandler(sig uint32) bool {
}
// When built using c-archive or c-shared, only install signal
// handlers for synchronous signals and SIGPIPE.
if (isarchive || islibrary) && t.flags&_SigPanic == 0 && sig != _SIGPIPE {
// handlers for synchronous signals, SIGPIPE, and SIGURG.
if (isarchive || islibrary) && t.flags&_SigPanic == 0 && sig != _SIGPIPE && sig != _SIGURG {
return false
}