From 2da9783e2b79f0c9a05087ba014bb93d03e191ea Mon Sep 17 00:00:00 2001
From: Rob Pike <r@golang.org>
Date: Sat, 12 Jul 2008 11:30:53 -0700
Subject: preserve AX across stack jump so C routines return correct value when
 triggering morestack.

SVN=126935
---
 src/runtime/runtime.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/runtime/runtime.h')

diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index f7d31a1dd8..3a2e3bde9e 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -82,6 +82,7 @@ struct	M
 {
 	G*	g0;		// g0 w interrupt stack - must not move
 	uint64	morearg;	// arg to morestack - must not move
+	uint64	cret;	// return value from C - must not move
 	G*	curg;		// current running goroutine
 	Gobuf	sched;
 	Gobuf	morestack;
@@ -148,6 +149,8 @@ extern int32	debug;
  */
 int32	gogo(Gobuf*);
 int32	gosave(Gobuf*);
+int32	gogoret(Gobuf*, uint64);
+void	retfromnewstack(void);
 void	setspgoto(byte*, void(*)(void), void(*)(void));
 void	FLUSH(void*);
 void*	getu(void);
-- 
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