Roll src/third_party/afl/src/ 2.14b..2.30b (16 versions).

third_party/afl/src/afl-gcc.c

 /*
    american fuzzy lop - wrapper for GCC and clang
    ----------------------------------------------
 
    Written and maintained by Michal Zalewski <lcamtuf@google.com>
 
    Copyright 2013, 2014, 2015 Google Inc. All rights reserved.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ skipping 98 matching lines @@
 
 static void edit_params(u32 argc, char** argv) {
 
   u8 fortify_set = 0, asan_set = 0;
   u8 *name;
 
 #if defined(__FreeBSD__) && defined(__x86_64__)
   u8 m32_set = 0;
 #endif
 
-  cc_params = ck_alloc((argc + 64) * sizeof(u8*));
+  cc_params = ck_alloc((argc + 128) * sizeof(u8*));
 
   name = strrchr(argv[0], '/');
   if (!name) name = argv[0]; else name++;
 
   if (!strncmp(name, "afl-clang", 9)) {
 
     clang_mode = 1;
 
     setenv(CLANG_ENV_VAR, "1", 1);
 
@@ skipping 134 matching lines @@
     cc_params[cc_par_cnt++] = "-funroll-loops";
 
     /* Two indicators that you're building for fuzzing; one of them is
        AFL-specific, the other is shared with libfuzzer. */
 
     cc_params[cc_par_cnt++] = "-D__AFL_COMPILER=1";
     cc_params[cc_par_cnt++] = "-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=1";
 
   }
 
+  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] = NULL;
 
 }
 
 
 /* Main entry point */
 
 int main(int argc, char** argv) {
 
   if (isatty(2) && !getenv("AFL_QUIET")) {
@@ skipping 25 matching lines @@
 
   edit_params(argc, argv);
 
   execvp(cc_params[0], (char**)cc_params);
 
   FATAL("Oops, failed to execute '%s' - check your PATH", cc_params[0]);
 
   return 0;
 
 }