From: ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 24 Jan 2019 05:31:14 +0000 (+0000)
Subject:     runtime: install SIGURG handler on C created threads
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80a091563bc802b373cb3e350b081c6454726b85;p=thirdparty%2Fgcc.git

runtime: install SIGURG handler on C created threads

    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


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268230 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 95604f851dde..faab230d3ecb 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -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.
diff --git a/libgo/go/runtime/signal_unix.go b/libgo/go/runtime/signal_unix.go
index 2f89c7cbf43e..12e4315d7e17 100644
--- a/libgo/go/runtime/signal_unix.go
+++ b/libgo/go/runtime/signal_unix.go
@@ -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
 	}