diff options
Diffstat (limited to 'llvm_mode/afl-clang-fast.c')
| -rw-r--r-- | llvm_mode/afl-clang-fast.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/llvm_mode/afl-clang-fast.c b/llvm_mode/afl-clang-fast.c index 8791c5ae..0b081ae6 100644 --- a/llvm_mode/afl-clang-fast.c +++ b/llvm_mode/afl-clang-fast.c @@ -45,11 +45,11 @@ static u32 cc_par_cnt = 1; /* Param count, including argv0 */ static u8 llvm_fullpath[PATH_MAX]; static u8 instrument_mode, instrument_opt_mode, ngram_size, lto_mode, cpp_mode; static u8 *lto_flag = AFL_CLANG_FLTO; -static u8 *march_opt = CFLAGS_OPT; static u8 debug; static u8 cwd[4096]; static u8 cmplog_mode; u8 use_stdin = 0; /* dummy */ +// static u8 *march_opt = CFLAGS_OPT; enum { @@ -206,6 +206,8 @@ static void edit_params(u32 argc, char **argv, char **envp) { } + cc_params[cc_par_cnt++] = "-Wno-unused-command-line-argument"; + if (lto_mode && cpp_mode) cc_params[cc_par_cnt++] = "-lc++"; // needed by fuzzbench, early @@ -335,7 +337,7 @@ static void edit_params(u32 argc, char **argv, char **envp) { } - cc_params[cc_par_cnt++] = "-Qunused-arguments"; + // cc_params[cc_par_cnt++] = "-Qunused-arguments"; // in case LLVM is installed not via a package manager or "make install" // e.g. compiled download or compiled from github then it's ./lib directory @@ -440,8 +442,8 @@ static void edit_params(u32 argc, char **argv, char **envp) { cc_params[cc_par_cnt++] = "-g"; cc_params[cc_par_cnt++] = "-O3"; cc_params[cc_par_cnt++] = "-funroll-loops"; - if (strlen(march_opt) > 1 && march_opt[0] == '-') - cc_params[cc_par_cnt++] = march_opt; + // if (strlen(march_opt) > 1 && march_opt[0] == '-') + // cc_params[cc_par_cnt++] = march_opt; } @@ -490,6 +492,19 @@ static void edit_params(u32 argc, char **argv, char **envp) { */ cc_params[cc_par_cnt++] = + "-D__AFL_FUZZ_INIT()=" + "int __afl_sharedmem_fuzzing = 1;" + "extern unsigned int __afl_fuzz_len;" + "extern unsigned char *__afl_fuzz_ptr;" + "unsigned char *__afl_fuzz_alt_ptr;"; + cc_params[cc_par_cnt++] = + "-D__AFL_FUZZ_TESTCASE_BUF=(__afl_fuzz_ptr ? __afl_fuzz_ptr : " + "(__afl_fuzz_alt_ptr = malloc(1 * 1024 * 1024)))"; + cc_params[cc_par_cnt++] = + "-D__AFL_FUZZ_TESTCASE_LEN=(__afl_fuzz_ptr ? __afl_fuzz_len : read(0, " + "__afl_fuzz_alt_ptr, 1 * 1024 * 1024))"; + + cc_params[cc_par_cnt++] = "-D__AFL_LOOP(_A)=" "({ static volatile char *_B __attribute__((used)); " " _B = (char*)\"" PERSIST_SIG |