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

third_party/afl/src/llvm_mode/afl-clang-fast.c

Index: third_party/afl/src/llvm_mode/afl-clang-fast.c
diff --git a/third_party/afl/src/llvm_mode/afl-clang-fast.c b/third_party/afl/src/llvm_mode/afl-clang-fast.c
index b9cedea954ad3d26d259f2b7b054d7f7d793ea07..725a16fa5149400306893514471724b3ba0326c4 100644
--- a/third_party/afl/src/llvm_mode/afl-clang-fast.c
+++ b/third_party/afl/src/llvm_mode/afl-clang-fast.c
@@ -99,7 +99,7 @@ static void edit_params(u32 argc, char** argv) {
   u8 fortify_set = 0, asan_set = 0, x_set = 0, maybe_linking = 1, bit_mode = 0;
   u8 *name;
 
-  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++;
@@ -130,6 +130,10 @@ static void edit_params(u32 argc, char** argv) {
 
   cc_params[cc_par_cnt++] = "-Qunused-arguments";
 
+  /* Detect stray -v calls from ./configure scripts. */
+
+  if (argc == 1 && !strcmp(argv[1], "-v")) maybe_linking = 0;
+
   while (--argc) {
     u8* cur = *(++argv);
 
@@ -138,8 +142,8 @@ static void edit_params(u32 argc, char** argv) {
 
     if (!strcmp(cur, "-x")) x_set = 1;
 
-    if (!strcmp(cur, "-c") || !strcmp(cur, "-S") || !strcmp(cur, "-E") ||
-        !strcmp(cur, "-v")) maybe_linking = 0;
+    if (!strcmp(cur, "-c") || !strcmp(cur, "-S") || !strcmp(cur, "-E"))
+      maybe_linking = 0;
 
     if (!strcmp(cur, "-fsanitize=address") ||
         !strcmp(cur, "-fsanitize=memory")) asan_set = 1;
@@ -196,6 +200,16 @@ 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++] = "-D__AFL_HAVE_MANUAL_CONTROL=1";
   cc_params[cc_par_cnt++] = "-D__AFL_COMPILER=1";
   cc_params[cc_par_cnt++] = "-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=1";