From: Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
Date: Fri, 17 Jan 2025 04:29:34 +0000 (-0800)
Subject: gprofng: fix Segmentation Fault in DbeInstr::mapPCtoLine
X-Git-Tag: binutils-2_44~47
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6f5fae607de7aa257cb9c75fb30e306cdc52512f;p=thirdparty%2Fbinutils-gdb.git

gprofng: fix Segmentation Fault in DbeInstr::mapPCtoLine

The bug was filed against gprofng-gui (https://savannah.gnu.org/bugs/?66560).

gprofng/ChangeLog
2025-01-16  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

	* src/Hist_data.cc (DbeInstr::mapPCtoLine): Check for null pointer.
---

diff --git a/gprofng/src/Hist_data.cc b/gprofng/src/Hist_data.cc
index 334c5e12113..0a373a5d14b 100644
--- a/gprofng/src/Hist_data.cc
+++ b/gprofng/src/Hist_data.cc
@@ -1391,7 +1391,8 @@ DbeInstr::mapPCtoLine (SourceFile *sf)
   if (inlinedInd >= 0)
     {
       DbeLine *dl = func->inlinedSubr[inlinedInd].dbeLine;
-      return dl->sourceFile->find_dbeline (func, dl->lineno);
+      if (dl)
+	return dl->sourceFile->find_dbeline (func, dl->lineno);
     }
   return func->mapPCtoLine (addr, sf);
 }
@@ -1422,7 +1423,9 @@ DbeInstr::add_inlined_info (StringBuilder *sb)
 	      sb->append (' ');
 	    }
 	  DbeLine *dl = p->dbeLine;
-	  sb->appendf (NTXT ("%s:%lld <-- "), get_basename (dl->sourceFile->get_name ()), (long long) dl->lineno);
+	  if (dl)
+	    sb->appendf ("%s:%lld <-- ", get_basename (dl->sourceFile->get_name ()),
+		     (long long) dl->lineno);
 	}
       last = p;
     }