diff options
Diffstat (limited to 'instrumentation/afl-llvm-lto-instrumentation.so.cc')
| -rw-r--r-- | instrumentation/afl-llvm-lto-instrumentation.so.cc | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/instrumentation/afl-llvm-lto-instrumentation.so.cc b/instrumentation/afl-llvm-lto-instrumentation.so.cc index 13dca8c4..f5c24e41 100644 --- a/instrumentation/afl-llvm-lto-instrumentation.so.cc +++ b/instrumentation/afl-llvm-lto-instrumentation.so.cc @@ -69,7 +69,8 @@ class AFLLTOPass : public ModulePass { if (getenv("AFL_DEBUG")) debug = 1; if ((ptr = getenv("AFL_LLVM_LTO_STARTID")) != NULL) - if ((afl_global_id = atoi(ptr)) < 0 || afl_global_id >= MAP_SIZE) + if ((afl_global_id = (uint32_t)atoi(ptr)) < 0 || + afl_global_id >= MAP_SIZE) FATAL("AFL_LLVM_LTO_STARTID value of \"%s\" is not between 0 and %u\n", ptr, MAP_SIZE - 1); @@ -88,7 +89,7 @@ class AFLLTOPass : public ModulePass { bool runOnModule(Module &M) override; protected: - int afl_global_id = 1, autodictionary = 1; + uint32_t afl_global_id = 1, autodictionary = 1; uint32_t function_minimum_size = 1; uint32_t inst_blocks = 0, inst_funcs = 0, total_instr = 0; uint64_t map_addr = 0x10000; @@ -545,7 +546,7 @@ bool AFLLTOPass::runOnModule(Module &M) { if (literalLength + 1 == optLength) { Str2.append("\0", 1); // add null byte - addedNull = true; + // addedNull = true; } @@ -800,7 +801,7 @@ bool AFLLTOPass::runOnModule(Module &M) { if (documentFile) { - fprintf(documentFile, "ModuleID=%llu Function=%s edgeID=%d\n", + fprintf(documentFile, "ModuleID=%llu Function=%s edgeID=%u\n", moduleID, F.getName().str().c_str(), afl_global_id); } @@ -872,10 +873,10 @@ bool AFLLTOPass::runOnModule(Module &M) { while ((map = map >> 1)) pow2map++; WARNF( - "We have %d blocks to instrument but the map size is only %u. Either " + "We have %u blocks to instrument but the map size is only %u. Either " "edit config.h and set MAP_SIZE_POW2 from %d to %u, then recompile " "afl-fuzz and llvm_mode and then make this target - or set " - "AFL_MAP_SIZE with at least size %d when running afl-fuzz with this " + "AFL_MAP_SIZE with at least size %u when running afl-fuzz with this " "target.", afl_global_id, MAP_SIZE, MAP_SIZE_POW2, pow2map, afl_global_id); @@ -925,7 +926,7 @@ bool AFLLTOPass::runOnModule(Module &M) { uint32_t write_loc = afl_global_id; - if (afl_global_id % 8) write_loc = (((afl_global_id + 8) >> 3) << 3); + if (afl_global_id % 32) write_loc = (((afl_global_id + 32) >> 4) << 4); GlobalVariable *AFLFinalLoc = new GlobalVariable( M, Int32Ty, true, GlobalValue::ExternalLinkage, 0, "__afl_final_loc"); |