Author: zhongxingxu
Date: Sun Jan 17 21:27:34 2010
New Revision: 93706
URL: http://llvm.org/viewvc/llvm-project?rev=93706&view=rev
Log:
If the symbol has not been tracked, do not free it. This is possible when free
is called on a pointer that does not get its value directly from malloc.
Modified:
cfe/trunk/lib/Analysis/MallocChecker.cpp
Modified: cfe/trunk/lib/Analysis/MallocChecker.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Analysis/MallocChecker.cpp?rev=93706&r1=93705&r2=93706&view=diff
==============================================================================
--- cfe/trunk/lib/Analysis/MallocChecker.cpp (original)
+++ cfe/trunk/lib/Analysis/MallocChecker.cpp Sun Jan 17 21:27:34 2010
@@ -170,7 +170,12 @@
assert(Sym);
const RefState *RS = state->get<RegionState>(Sym);
- assert(RS);
+
+ // If the symbol has not been tracked, return. This is possible when free()
is
+ // called on a pointer that does not get its pointee directly from malloc().
+ // Full support of this requires inter-procedural analysis.
+ if (!RS)
+ return state;
// Check double free.
if (RS->isReleased()) {
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