From: Russ Cox <rsc@golang.org>
Date: Wed, 29 Oct 2014 16:25:24 +0000 (-0400)
Subject: [dev.garbage] all: merge dev.power64 (5ad5e85cfb99) into dev.garbage
X-Git-Tag: go1.5beta1~2684^2~25
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=d6f4e5020b0dc4014a75782a72d39c99657bd659;p=gostls13.git

[dev.garbage] all: merge dev.power64 (5ad5e85cfb99) into dev.garbage

The goal here is to get the big-endian fixes so that
in some upcoming code movement for write barriers
I don't make them unmergeable.

LGTM=rlh
R=rlh
CC=golang-codereviews
https://golang.org/cl/166890043
---

d6f4e5020b0dc4014a75782a72d39c99657bd659
diff --cc src/runtime/mgc0.c
index bcc5a2f39d,e5b6870c66..f76d7c05ca
--- a/src/runtime/mgc0.c
+++ b/src/runtime/mgc0.c
@@@ -2065,6 -1802,7 +2065,7 @@@ runtime·unrollgcprog_m(void
  			prog = (byte*)typ->gc[1];
  			unrollgcprog1(mask, prog, &pos, false, true);
  		}
 -		
++
  		// atomic way to say mask[0] = 1
  		x = *(uintptr*)mask;
  		((byte*)&x)[0] = 1;