From: Dmitriy Vyukov <dvyukov@google.com>
Date: Sat, 23 Feb 2013 06:07:41 +0000 (+0400)
Subject: runtime: fix windows cpu profiling
X-Git-Tag: go1.1rc2~882
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=1e957b6245d1c204e333738383a6f4aca0b9d86b;p=gostls13.git

runtime: fix windows cpu profiling

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/7407044
---

diff --git a/src/pkg/runtime/proc.c b/src/pkg/runtime/proc.c
index 4f02d00faa..3a5652c915 100644
--- a/src/pkg/runtime/proc.c
+++ b/src/pkg/runtime/proc.c
@@ -1715,7 +1715,8 @@ runtime·sigprof(uint8 *pc, uint8 *sp, uint8 *lr, G *gp)
 {
 	int32 n;
 
-	if(m == nil || m->mcache == nil)
+	// Windows does profiling in a dedicated thread w/o m.
+	if(!Windows && (m == nil || m->mcache == nil))
 		return;
 	if(prof.fn == nil || prof.hz == 0)
 		return;