From f84d5dd4753890f32947e67c8a16d8ca22086551 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Thu, 14 Mar 2013 10:10:12 -0400
Subject: runtime: make panic possible before malloc is ready

Otherwise startup problems can be difficult to debug.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7522046
---
 src/pkg/runtime/mfixalloc.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/pkg/runtime/mfixalloc.c')

diff --git a/src/pkg/runtime/mfixalloc.c b/src/pkg/runtime/mfixalloc.c
index c916d588fd..c7dab8aea8 100644
--- a/src/pkg/runtime/mfixalloc.c
+++ b/src/pkg/runtime/mfixalloc.c
@@ -30,6 +30,11 @@ void*
 runtime·FixAlloc_Alloc(FixAlloc *f)
 {
 	void *v;
+	
+	if(f->size == 0) {
+		runtime·printf("runtime: use of FixAlloc_Alloc before FixAlloc_Init\n");
+		runtime·throw("runtime: internal error");
+	}
 
 	if(f->list) {
 		v = f->list;
-- 
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