From f85abf01bcc4543453a1941a8e1734471b6451a5 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Wed, 13 Jan 2010 09:08:39 -0800
Subject: [PATCH] runtime: reset DF flag after running external code on 386

R=r
CC=golang-dev
https://golang.org/cl/186108
---
 src/pkg/runtime/386/asm.s | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/pkg/runtime/386/asm.s b/src/pkg/runtime/386/asm.s
index 11ce3f6b6f..aa0fd95bb4 100644
--- a/src/pkg/runtime/386/asm.s
+++ b/src/pkg/runtime/386/asm.s
@@ -350,6 +350,10 @@ TEXT	runcgo(SB),7,$16
 	MOVL	CX, 4(SP)
 	MOVL	BX, 0(SP)
 	CALL	AX
+	
+	// Back; switch to original stack, re-establish
+	// "DF is clear" invariant.
+	CLD
 	MOVL	4(SP), SP
 	RET
 
-- 
2.50.0