From: Dmitriy Vyukov <dvyukov@google.com>
Date: Thu, 30 May 2013 10:11:49 +0000 (+0400)
Subject: runtime: mark runtime.goexit as nosplit
X-Git-Tag: go1.2rc2~1376
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=573d25a42342ae094edeafc7066646cf825eb255;p=gostls13.git

runtime: mark runtime.goexit as nosplit
Required for preemptive scheduler, see the comment.

R=golang-dev, daniel.morsing
CC=golang-dev
https://golang.org/cl/9841047
---

diff --git a/src/pkg/runtime/proc.c b/src/pkg/runtime/proc.c
index 7581b35d0b..c7a8d24182 100644
--- a/src/pkg/runtime/proc.c
+++ b/src/pkg/runtime/proc.c
@@ -1223,6 +1223,10 @@ gosched0(G *gp)
 }
 
 // Finishes execution of the current goroutine.
+// Need to mark it as nosplit, because it runs with sp > stackbase (as runtime·lessstack).
+// Since it does not return it does not matter.  But if it is preempted
+// at the split stack check, GC will complain about inconsistent sp.
+#pragma textflag 7
 void
 runtime·goexit(void)
 {