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authorvan Hauser <vh@thc.org>2021-01-20 19:12:52 +0100
committerGitHub <noreply@github.com>2021-01-20 19:12:52 +0100
commit068bef5eab942df0a133c92522f2ab81b28ac636 (patch)
tree4689cb46e0d543af889609e260b1ff03455a2701 /instrumentation/compare-transform-pass.so.cc
parent271116f8705e08d1b4f924cda6c6cae1b0b5de2b (diff)
parentb9e855b7b5ef3d7f367b32ee03459a9f5b21360f (diff)
downloadafl++-068bef5eab942df0a133c92522f2ab81b28ac636.tar.gz
Merge pull request #691 from AFLplusplus/dev
push to stable
Diffstat (limited to 'instrumentation/compare-transform-pass.so.cc')
-rw-r--r--instrumentation/compare-transform-pass.so.cc29
1 files changed, 19 insertions, 10 deletions
diff --git a/instrumentation/compare-transform-pass.so.cc b/instrumentation/compare-transform-pass.so.cc
index de8b97f0..da5cf7e9 100644
--- a/instrumentation/compare-transform-pass.so.cc
+++ b/instrumentation/compare-transform-pass.so.cc
@@ -68,7 +68,7 @@ class CompareTransform : public ModulePass {
   const char *getPassName() const override {
 
 #else
-  StringRef getPassName() const override {
+  StringRef      getPassName() const override {
 
 #endif
     return "transforms compare functions";
@@ -101,22 +101,31 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
   IntegerType *                    Int64Ty = IntegerType::getInt64Ty(C);
 
 #if LLVM_VERSION_MAJOR < 9
-  Constant *
+  Function *tolowerFn;
 #else
-  FunctionCallee
+  FunctionCallee tolowerFn;
 #endif
-      c = M.getOrInsertFunction("tolower", Int32Ty, Int32Ty
+  {
+
+#if LLVM_VERSION_MAJOR < 9
+    Constant *
+#else
+    FunctionCallee
+#endif
+        c = M.getOrInsertFunction("tolower", Int32Ty, Int32Ty
 #if LLVM_VERSION_MAJOR < 5
-                                ,
-                                NULL
+                                  ,
+                                  NULL
 #endif
-      );
+        );
 #if LLVM_VERSION_MAJOR < 9
-  Function *tolowerFn = cast<Function>(c);
+    tolowerFn = cast<Function>(c);
 #else
-  FunctionCallee tolowerFn = c;
+    tolowerFn = c;
 #endif
 
+  }
+
   /* iterate over all functions, bbs and instruction and add suitable calls to
    * strcmp/memcmp/strncmp/strcasecmp/strncasecmp */
   for (auto &F : M) {
@@ -234,7 +243,7 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
 
             if (!HasStr2) {
 
-              auto *Ptr = dyn_cast<ConstantExpr>(Str1P);
+              Ptr = dyn_cast<ConstantExpr>(Str1P);
               if (Ptr && Ptr->isGEPWithNoNotionalOverIndexing()) {
 
                 if (auto *Var = dyn_cast<GlobalVariable>(Ptr->getOperand(0))) {