copying LLVM mode no builtins.
MODIFY
gcc_plugin/afl-gcc-fast.c
gcc_plugin/afl-gcc-fast.c
@@ -108,7 +108,7 @@ static void edit_params(u32 argc, char** argv) {
u8 fortify_set = 0, asan_set = 0, x_set = 0, maybe_linking = 1;
u8* name;
- cc_params = ck_alloc((argc + 64) * sizeof(u8*));
+ cc_params = ck_alloc((argc + 128) * sizeof(u8*));
name = strrchr(argv[0], '/');
if (!name)
@@ -202,6 +202,19 @@ static void edit_params(u32 argc, char** argv) {
}
+ if (getenv("AFL_NO_BUILTIN")) {
+
+ cc_params[cc_par_cnt++] = "-fno-builtin-strcmp";
+ cc_params[cc_par_cnt++] = "-fno-builtin-strncmp";
+ cc_params[cc_par_cnt++] = "-fno-builtin-strcasecmp";
+ cc_params[cc_par_cnt++] = "-fno-builtin-strncasecmp";
+ cc_params[cc_par_cnt++] = "-fno-builtin-memcmp";
+ cc_params[cc_par_cnt++] = "-fno-builtin-bcmp";
+ cc_params[cc_par_cnt++] = "-fno-builtin-strstr";
+ cc_params[cc_par_cnt++] = "-fno-builtin-strcasestr";
+
+ }
+
#ifdef USEMMAP
cc_params[cc_par_cnt++] = "-lrt";
#endif

copying LLVM mode no builtins.