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libgo patch committed: Install SIGURG handler in c-archive mode

Message ID CAOyqgcWzLr-n2BBE_NkYPuBR7V0GiuVN72aV3njAZ+TbX5UNcA@mail.gmail.com
State New
Headers show
Series libgo patch committed: Install SIGURG handler in c-archive mode | expand

Commit Message

Ian Lance Taylor Jan. 24, 2019, 5:31 a.m. UTC 
This patch by Cherry Zhang changes the libgo runtime to install a
SIGURG handler in c-archive mode.  The precise stack scan uses SIGURG
to trigger a stack scan, so we need to have Go signal handler
installed for SIGURG.  Bootstrapped and ran Go testsuite on
x86_64-pc-linux-gnu.  Committed to mainline.

Ian
diff mbox series

Patch

Index: gcc/go/gofrontend/MERGE
===================================================================
--- gcc/go/gofrontend/MERGE	(revision 268158)
+++ gcc/go/gofrontend/MERGE	(working copy)
@@ -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.
Index: libgo/go/runtime/signal_unix.go
===================================================================
--- libgo/go/runtime/signal_unix.go	(revision 268158)
+++ libgo/go/runtime/signal_unix.go	(working copy)
@@ -142,8 +142,8 @@  func sigInstallGoHandler(sig uint32) boo
 	}
 
 	// 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
 	}