From: Russ Cox <rsc@golang.org>
Date: Wed, 16 Apr 2014 15:39:43 +0000 (-0400)
Subject: runtime: adjust GC debug print to include source pointers
X-Git-Tag: go1.3beta1~56
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=a5b1530557833708050c0e2508ffeaab1bf8bc29;p=gostls13.git

runtime: adjust GC debug print to include source pointers

Having the pointers means you can grub around in the
binary finding out more about them.

This helped with issue 7748.

LGTM=minux.ma, bradfitz
R=golang-codereviews, minux.ma, bradfitz
CC=golang-codereviews
https://golang.org/cl/88090045
---

diff --git a/src/pkg/runtime/mgc0.c b/src/pkg/runtime/mgc0.c
index be7f27e396..359d426fc8 100644
--- a/src/pkg/runtime/mgc0.c
+++ b/src/pkg/runtime/mgc0.c
@@ -702,8 +702,8 @@ checkptr(void *obj, uintptr objti)
 		// A simple best-effort check until first GC_END.
 		for(j = 1; pc1[j] != GC_END && pc2[j] != GC_END; j++) {
 			if(pc1[j] != pc2[j]) {
-				runtime·printf("invalid gc type info for '%s' at %p, type info %p, block info %p\n",
-					       t->string ? (int8*)t->string->str : (int8*)"?", j, pc1[j], pc2[j]);
+				runtime·printf("invalid gc type info for '%s', type info %p [%d]=%p, block info %p [%d]=%p\n",
+					       t->string ? (int8*)t->string->str : (int8*)"?", pc1, (int32)j, pc1[j], pc2, (int32)j, pc2[j]);
 				runtime·throw("invalid gc type info");
 			}
 		}