[analyzer] InnerPointerChecker: fix displayed checker name.
For InnerPointerChecker to function properly, both the checker itself
and parts of MallocChecker that handle relevant use-after-free problems
need to be turned on. So far, the latter part has been developed within
MallocChecker's NewDelete sub-checker, often causing warnings to appear
under that name. This patch defines a new CheckKind within MallocChecker
for the inner pointer checking functionality, so that the correct name
is displayed in warnings and in the ExplodedGraph.
Tested on clang-tidy.
Differential Review: https://reviews.llvm.org/D50211
llvm-svn: 339067
diff --git a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
index 3ac7105..89413c2 100644
--- a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
@@ -194,6 +194,7 @@
CK_NewDeleteChecker,
CK_NewDeleteLeaksChecker,
CK_MismatchedDeallocatorChecker,
+ CK_InnerPointerChecker,
CK_NumCheckKinds
};
@@ -1662,13 +1663,10 @@
case AF_IfNameIndex: {
if (ChecksEnabled[CK_MallocChecker])
return CK_MallocChecker;
-
- return Optional<MallocChecker::CheckKind>();
+ return None;
}
case AF_CXXNew:
- case AF_CXXNewArray:
- // FIXME: Add new CheckKind for AF_InnerBuffer.
- case AF_InnerBuffer: {
+ case AF_CXXNewArray: {
if (IsALeakCheck) {
if (ChecksEnabled[CK_NewDeleteLeaksChecker])
return CK_NewDeleteLeaksChecker;
@@ -1677,7 +1675,12 @@
if (ChecksEnabled[CK_NewDeleteChecker])
return CK_NewDeleteChecker;
}
- return Optional<MallocChecker::CheckKind>();
+ return None;
+ }
+ case AF_InnerBuffer: {
+ if (ChecksEnabled[CK_InnerPointerChecker])
+ return CK_InnerPointerChecker;
+ return None;
}
case AF_None: {
llvm_unreachable("no family");
@@ -1980,7 +1983,8 @@
SymbolRef Sym) const {
if (!ChecksEnabled[CK_MallocChecker] &&
- !ChecksEnabled[CK_NewDeleteChecker])
+ !ChecksEnabled[CK_NewDeleteChecker] &&
+ !ChecksEnabled[CK_InnerPointerChecker])
return;
Optional<MallocChecker::CheckKind> CheckKind = getCheckIfTracked(C, Sym);
@@ -3109,6 +3113,18 @@
}
}
+// Intended to be used in InnerPointerChecker to register the part of
+// MallocChecker connected to it.
+void ento::registerInnerPointerCheckerAux(CheckerManager &mgr) {
+ registerCStringCheckerBasic(mgr);
+ MallocChecker *checker = mgr.registerChecker<MallocChecker>();
+ checker->IsOptimistic = mgr.getAnalyzerOptions().getBooleanOption(
+ "Optimistic", false, checker);
+ checker->ChecksEnabled[MallocChecker::CK_InnerPointerChecker] = true;
+ checker->CheckNames[MallocChecker::CK_InnerPointerChecker] =
+ mgr.getCurrentCheckName();
+}
+
#define REGISTER_CHECKER(name) \
void ento::register##name(CheckerManager &mgr) { \
registerCStringCheckerBasic(mgr); \