some warnings fixes
MODIFY
llvm_mode/LLVMInsTrim.so.cc
llvm_mode/LLVMInsTrim.so.cc
@@ -243,7 +243,7 @@ struct InsTrim : public ModulePass {
for (unsigned I = 0; I < PrevLocSize - 1; ++I)
PrevLocShuffle.push_back(ConstantInt::get(Int32Ty, I));
- for (unsigned I = PrevLocSize; I < PrevLocVecSize; ++I)
+ for (int I = PrevLocSize; I < PrevLocVecSize; ++I)
PrevLocShuffle.push_back(ConstantInt::get(Int32Ty, PrevLocSize));
Constant *PrevLocShuffleMask = ConstantVector::get(PrevLocShuffle);

MODIFY
llvm_mode/afl-clang-fast.c
llvm_mode/afl-clang-fast.c
@@ -811,13 +811,17 @@ int main(int argc, char **argv, char **envp) {
if (strncasecmp(ptr, "ngram", strlen("ngram")) == 0) {
ptr += strlen("ngram");
- while (*ptr && (*ptr < '0' || *ptr > '9'))
+ while (*ptr && (*ptr < '0' || *ptr > '9')) {
ptr++;
- if (!*ptr)
- if ((ptr = getenv("AFL_LLVM_NGRAM_SIZE")) != NULL)
+ }
+ if (!*ptr) {
+ ptr = getenv("AFL_LLVM_NGRAM_SIZE");
+ if (!ptr || !*ptr) {
FATAL(
"you must set the NGRAM size with (e.g. for value 2) "
"AFL_LLVM_INSTRUMENT=ngram-2");
+ }
+ }
ngram_size = atoi(ptr);
if (ngram_size < 2 || ngram_size > NGRAM_SIZE_MAX)
FATAL(

MODIFY
llvm_mode/afl-llvm-common.cc
llvm_mode/afl-llvm-common.cc
@@ -346,6 +346,10 @@ static std::string getSourceName(llvm::Function *F) {
DILocation *cDILoc = dyn_cast<DILocation>(Loc.getAsMDNode());
+ if (!cDILoc) {
+ FATAL("DebugLoc is no DILocation");
+ }
+
StringRef instFilename = cDILoc->getFilename();
if (instFilename.str().empty()) {

MODIFY
llvm_mode/afl-llvm-lto-instrumentation.so.cc
llvm_mode/afl-llvm-lto-instrumentation.so.cc
@@ -381,6 +381,7 @@ bool AFLLTOPass::runOnModule(Module &M) {
bool HasStr2 = getConstantStringInfo(Str2P, TmpStr);
if (TmpStr.empty())
HasStr2 = false;
+ (void) HasStr2 /* never read */
else
Str2 = TmpStr.str();

MODIFY
llvm_mode/afl-llvm-pass.so.cc
llvm_mode/afl-llvm-pass.so.cc
@@ -284,7 +284,7 @@ bool AFLCoverage::runOnModule(Module &M) {
for (unsigned I = 0; I < PrevLocSize - 1; ++I)
PrevLocShuffle.push_back(ConstantInt::get(Int32Ty, I));
- for (unsigned I = PrevLocSize; I < PrevLocVecSize; ++I)
+ for (int I = PrevLocSize; I < PrevLocVecSize; ++I)
PrevLocShuffle.push_back(ConstantInt::get(Int32Ty, PrevLocSize));
Constant *PrevLocShuffleMask = ConstantVector::get(PrevLocShuffle);

some warnings fixes