diff options
Diffstat (limited to 'llvm_mode/afl-clang-fast.c')
| -rw-r--r-- | llvm_mode/afl-clang-fast.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/llvm_mode/afl-clang-fast.c b/llvm_mode/afl-clang-fast.c index 2b359cdf..7da7c5a3 100644 --- a/llvm_mode/afl-clang-fast.c +++ b/llvm_mode/afl-clang-fast.c @@ -204,13 +204,24 @@ static void edit_params(u32 argc, char** argv) { // "-fsanitize-coverage=trace-cmp,trace-div,trace-gep"; // cc_params[cc_par_cnt++] = "-sanitizer-coverage-block-threshold=0"; #else - cc_params[cc_par_cnt++] = "-Xclang"; - cc_params[cc_par_cnt++] = "-load"; - cc_params[cc_par_cnt++] = "-Xclang"; - if (getenv("AFL_LLVM_INSTRIM") != NULL || getenv("INSTRIM_LIB") != NULL) - cc_params[cc_par_cnt++] = alloc_printf("%s/libLLVMInsTrim.so", obj_path); - else - cc_params[cc_par_cnt++] = alloc_printf("%s/afl-llvm-pass.so", obj_path); + if (getenv("USE_TRACE_PC") || getenv("AFL_USE_TRACE_PC") || + getenv("AFL_LLVM_USE_TRACE_PC") || getenv("AFL_TRACE_PC")) { + + cc_params[cc_par_cnt++] = + "-fsanitize-coverage=trace-pc-guard"; // edge coverage by default + + } else { + + cc_params[cc_par_cnt++] = "-Xclang"; + cc_params[cc_par_cnt++] = "-load"; + cc_params[cc_par_cnt++] = "-Xclang"; + if (getenv("AFL_LLVM_INSTRIM") != NULL || getenv("INSTRIM_LIB") != NULL) + cc_params[cc_par_cnt++] = alloc_printf("%s/libLLVMInsTrim.so", obj_path); + else + cc_params[cc_par_cnt++] = alloc_printf("%s/afl-llvm-pass.so", obj_path); + + } + #endif /* ^USE_TRACE_PC */ cc_params[cc_par_cnt++] = "-Qunused-arguments"; @@ -282,8 +293,10 @@ static void edit_params(u32 argc, char** argv) { #ifdef USE_TRACE_PC - if (getenv("AFL_INST_RATIO")) - FATAL("AFL_INST_RATIO not available at compile time with 'trace-pc'."); + if (getenv("USE_TRACE_PC") || getenv("AFL_USE_TRACE_PC") || + getenv("AFL_LLVM_USE_TRACE_PC") || getenv("AFL_TRACE_PC")) + if (getenv("AFL_INST_RATIO")) + FATAL("AFL_INST_RATIO not available at compile time with 'trace-pc'."); #endif /* USE_TRACE_PC */ @@ -444,7 +457,8 @@ int main(int argc, char** argv) { "You can specify custom next-stage toolchain via AFL_CC and AFL_CXX. " "Setting\n" "AFL_HARDEN enables hardening optimizations in the compiled code.\n\n" - "afl-clang-fast was built for llvm %s with the llvm binary path of \"%s\".\n\n", + "afl-clang-fast was built for llvm %s with the llvm binary path of " + "\"%s\".\n\n", BIN_PATH, BIN_PATH, LLVM_VERSION, LLVM_BINDIR); exit(1); @@ -454,6 +468,8 @@ int main(int argc, char** argv) { #ifdef USE_TRACE_PC SAYF(cCYA "afl-clang-fast" VERSION cRST " [tpcg] by <lszekeres@google.com>\n"); +#warning \ + "You do not need to specifically compile with USE_TRACE_PC anymore, setting the environment variable AFL_LLVM_USE_TRACE_PC is enough." #else SAYF(cCYA "afl-clang-fast" VERSION cRST " by <lszekeres@google.com>\n"); #endif /* ^USE_TRACE_PC */ |