From: Alex Brainman <alex.brainman@gmail.com>
Date: Tue, 29 Nov 2011 01:57:20 +0000 (+1100)
Subject: runtime: make sure windows/amd64 stack is 16-byte aligned on syscall entry (fixes... 
X-Git-Tag: weekly.2011-12-01~27
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=fbdec642a980d73cdd7dbfd18018f18c6d198ffc;p=gostls13.git

runtime: make sure windows/amd64 stack is 16-byte aligned on syscall entry (fixes build)

R=golang-dev, vcc.163
CC=golang-dev
https://golang.org/cl/5445051
---

diff --git a/src/pkg/runtime/windows/amd64/sys.s b/src/pkg/runtime/windows/amd64/sys.s
index 04e3685546..a1e36fe132 100644
--- a/src/pkg/runtime/windows/amd64/sys.s
+++ b/src/pkg/runtime/windows/amd64/sys.s
@@ -4,7 +4,9 @@
 
 #include "amd64/asm.h"
 
-#define maxargs 15
+// maxargs should be divisible by 2, as Windows stack
+// must be kept 16-byte aligned on syscall entry.
+#define maxargs 16
 
 // void runtime·asmstdcall(void *c);
 TEXT runtime·asmstdcall(SB),7,$0