From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Thu, 7 Jan 2010 03:06:33 +0000 (+0000)
Subject: Gracefully handle a missing retrieve_type_dbg.
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=f17f78673a3fd8b4d1f53478d5a8146881abbc03;p=libfirm

Gracefully handle a missing retrieve_type_dbg.

[r26910]
---

diff --git a/ir/debug/dbginfo.c b/ir/debug/dbginfo.c
index d7eb835b8..08591d14f 100644
--- a/ir/debug/dbginfo.c
+++ b/ir/debug/dbginfo.c
@@ -127,7 +127,10 @@ void ir_set_type_debug_retrieve(retrieve_type_dbg_func func)
 void ir_retrieve_type_dbg_info(char *buffer, size_t buffer_size,
                                const type_dbg_info *tdbgi)
 {
-	retrieve_type_dbg(buffer, buffer_size, tdbgi);
+	if (retrieve_type_dbg)
+		retrieve_type_dbg(buffer, buffer_size, tdbgi);
+	assert(buffer_size > 0);
+	buffer[0] = 0;
 }
 
 void ir_dbg_info_snprint(char *buf, size_t bufsize, const dbg_info *dbg)