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gprofng: fix Segmentation Fault in DbeInstr::mapPCtoLine

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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.
This commit is contained in:
Vladimir Mezentsev
2025-01-16 20:29:34 -08:00
parent 3b44637d9d
commit 6f5fae607d
1 changed files with 5 additions and 2 deletions
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7
gprofng/src/Hist_data.cc
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@@ -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;
}