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-rw-r--r--frida_mode/README.md7
-rw-r--r--frida_mode/frida.map1
-rw-r--r--frida_mode/include/instrument.h1
-rw-r--r--frida_mode/src/instrument/instrument.c5
-rw-r--r--frida_mode/src/instrument/instrument_arm64.c32
-rw-r--r--frida_mode/src/instrument/instrument_x64.c10
-rw-r--r--frida_mode/src/instrument/instrument_x86.c12
-rw-r--r--frida_mode/src/js/api.js7
-rw-r--r--frida_mode/src/js/js_api.c7
-rw-r--r--frida_mode/test/png/GNUmakefile2
-rw-r--r--frida_mode/ts/lib/afl.ts12
-rw-r--r--frida_mode/ts/package-lock.json432
-rw-r--r--include/envs.h1
13 files changed, 511 insertions, 18 deletions
diff --git a/frida_mode/README.md b/frida_mode/README.md
index 055bb3ee..aac13153 100644
--- a/frida_mode/README.md
+++ b/frida_mode/README.md
@@ -193,6 +193,13 @@ instrumented address block translations.
   backpatching information. By default, the child will report applied
   backpatches to the parent so that they can be applied and then be inherited by
   the next child on fork.
+* `AFL_FRIDA_INST_NO_SUPPRESS` - Disable deterministic branch suppression.
+  Deterministic branch suppression skips the preamble which generates coverage
+  information at the start of each block, if the block is reached by a
+  deterministic branch. This reduces map polution, and may improve performance
+  when all the executing blocks have been prefetched and backpatching applied.
+  However, in the event that backpatching is incomplete, this may incur a
+  performance penatly as branch instructions are disassembled on each branch.
 * `AFL_FRIDA_INST_SEED` - Sets the initial seed for the hash function used to
   generate block (and hence edge) IDs. Setting this to a constant value may be
   useful for debugging purposes, e.g., investigating unstable edges.
diff --git a/frida_mode/frida.map b/frida_mode/frida.map
index 73fff686..baf067ab 100644
--- a/frida_mode/frida.map
+++ b/frida_mode/frida.map
@@ -22,6 +22,7 @@
     js_api_set_instrument_no_optimize;
     js_api_set_instrument_regs_file;
     js_api_set_instrument_seed;
+    js_api_set_instrument_suppress_disable;
     js_api_set_instrument_trace;
     js_api_set_instrument_trace_unique;
     js_api_set_instrument_unstable_coverage_file;
diff --git a/frida_mode/include/instrument.h b/frida_mode/include/instrument.h
index 8c93d881..1825e331 100644
--- a/frida_mode/include/instrument.h
+++ b/frida_mode/include/instrument.h
@@ -15,6 +15,7 @@ extern guint64  instrument_hash_zero;
 extern char    *instrument_coverage_unstable_filename;
 extern gboolean instrument_coverage_insn;
 extern char    *instrument_regs_filename;
+extern gboolean instrument_suppress;
 
 extern gboolean instrument_use_fixed_seed;
 extern guint64  instrument_fixed_seed;
diff --git a/frida_mode/src/instrument/instrument.c b/frida_mode/src/instrument/instrument.c
index e1e4ac22..a6aac666 100644
--- a/frida_mode/src/instrument/instrument.c
+++ b/frida_mode/src/instrument/instrument.c
@@ -27,6 +27,7 @@ gboolean instrument_optimize = false;
 gboolean instrument_unique = false;
 guint64  instrument_hash_zero = 0;
 guint64  instrument_hash_seed = 0;
+gboolean instrument_suppress = false;
 
 gboolean instrument_use_fixed_seed = FALSE;
 guint64  instrument_fixed_seed = 0;
@@ -290,6 +291,7 @@ void instrument_config(void) {
       (getenv("AFL_FRIDA_INST_UNSTABLE_COVERAGE_FILE"));
   instrument_coverage_insn = (getenv("AFL_FRIDA_INST_INSN") != NULL);
   instrument_regs_filename = getenv("AFL_FRIDA_INST_REGS_FILE");
+  instrument_suppress = (getenv("AFL_FRIDA_INST_NO_SUPPRESS") == NULL);
 
   instrument_debug_config();
   instrument_coverage_config();
@@ -321,6 +323,9 @@ void instrument_init(void) {
   FOKF(cBLU "Instrumentation" cRST " - " cGRN "instructions:" cYEL " [%c]",
        instrument_coverage_insn ? 'X' : ' ');
 
+  FOKF(cBLU "Instrumentation" cRST " - " cGRN "suppression:" cYEL " [%c]",
+       instrument_suppress ? 'X' : ' ');
+
   if (instrument_tracing && instrument_optimize) {
 
     WARNF("AFL_FRIDA_INST_TRACE implies AFL_FRIDA_INST_NO_OPTIMIZE");
diff --git a/frida_mode/src/instrument/instrument_arm64.c b/frida_mode/src/instrument/instrument_arm64.c
index 39e32b12..4372861d 100644
--- a/frida_mode/src/instrument/instrument_arm64.c
+++ b/frida_mode/src/instrument/instrument_arm64.c
@@ -196,7 +196,15 @@ static void instrument_coverage_switch(GumStalkerObserver *self,
   insn = instrument_disassemble(from_insn);
   deterministic = instrument_is_deterministic(insn);
   cs_free(insn, 1);
-  if (!deterministic) { return; }
+
+  /*
+   * If the branch is deterministic, then we should start execution at the
+   * begining of the block. From here, we will branch and skip the coverage
+   * code and jump right to the target code of the instrumented block.
+   * Otherwise, if the branch is non-deterministic, then we need to branch
+   * part way into the block to where the coverage instrumentation starts.
+   */
+  if (deterministic) { return; }
 
   /*
    * Since each block is prefixed with a restoration prologue, we need to be
@@ -305,7 +313,7 @@ void instrument_coverage_optimize(const cs_insn    *instr,
 
   // gum_arm64_writer_put_brk_imm(cw, 0x0);
 
-  instrument_coverage_suppress_init();
+  if (instrument_suppress) { instrument_coverage_suppress_init(); }
 
   code_addr = cw->pc;
 
@@ -325,9 +333,13 @@ void instrument_coverage_optimize(const cs_insn    *instr,
   block_start =
       GSIZE_TO_POINTER(GUM_ADDRESS(cw->code) - GUM_RESTORATION_PROLOG_SIZE);
 
-  if (!g_hash_table_add(coverage_blocks, block_start)) {
+  if (instrument_suppress) {
+
+    if (!g_hash_table_add(coverage_blocks, block_start)) {
+
+      FATAL("Failed - g_hash_table_add");
 
-    FATAL("Failed - g_hash_table_add");
+    }
 
   }
 
@@ -363,7 +375,17 @@ void instrument_coverage_optimize(const cs_insn    *instr,
 
   code.code.mov_x1_curr_loc_shr_1 |= (area_offset_ror << 5);
 
-  gum_arm64_writer_put_bytes(cw, code.bytes, sizeof(afl_log_code));
+  if (instrument_suppress) {
+
+    gum_arm64_writer_put_bytes(cw, code.bytes, sizeof(afl_log_code));
+
+  } else {
+
+    size_t offset = offsetof(afl_log_code, code.stp_x0_x1);
+    gum_arm64_writer_put_bytes(cw, &code.bytes[offset],
+                               sizeof(afl_log_code) - offset);
+
+  }
 
 }
 
diff --git a/frida_mode/src/instrument/instrument_x64.c b/frida_mode/src/instrument/instrument_x64.c
index f7b7d6c5..8338f8e7 100644
--- a/frida_mode/src/instrument/instrument_x64.c
+++ b/frida_mode/src/instrument/instrument_x64.c
@@ -380,11 +380,15 @@ void instrument_coverage_optimize(const cs_insn    *instr,
 
   }
 
-  instrument_coverage_suppress_init();
+  if (instrument_suppress) {
 
-  if (!g_hash_table_add(coverage_blocks, GSIZE_TO_POINTER(cw->code))) {
+    instrument_coverage_suppress_init();
 
-    FATAL("Failed - g_hash_table_add");
+    if (!g_hash_table_add(coverage_blocks, GSIZE_TO_POINTER(cw->code))) {
+
+      FATAL("Failed - g_hash_table_add");
+
+    }
 
   }
 
diff --git a/frida_mode/src/instrument/instrument_x86.c b/frida_mode/src/instrument/instrument_x86.c
index f15893cb..4667ea29 100644
--- a/frida_mode/src/instrument/instrument_x86.c
+++ b/frida_mode/src/instrument/instrument_x86.c
@@ -203,13 +203,17 @@ void instrument_coverage_optimize(const cs_insn    *instr,
 
   code.code = template;
 
-  instrument_coverage_suppress_init();
+  if (instrument_suppress) {
 
-  // gum_x86_writer_put_breakpoint(cw);
+    instrument_coverage_suppress_init();
 
-  if (!g_hash_table_add(coverage_blocks, GSIZE_TO_POINTER(cw->code))) {
+    // gum_x86_writer_put_breakpoint(cw);
 
-    FATAL("Failed - g_hash_table_add");
+    if (!g_hash_table_add(coverage_blocks, GSIZE_TO_POINTER(cw->code))) {
+
+      FATAL("Failed - g_hash_table_add");
+
+    }
 
   }
 
diff --git a/frida_mode/src/js/api.js b/frida_mode/src/js/api.js
index fce7a5d7..f9ea1ffb 100644
--- a/frida_mode/src/js/api.js
+++ b/frida_mode/src/js/api.js
@@ -170,6 +170,12 @@ class Afl {
     static setInstrumentSeed(seed) {
         Afl.jsApiSetInstrumentSeed(seed);
     }
+    /*
+     * See `AFL_FRIDA_INST_NO_SUPPRESS`
+     */
+    static setInstrumentSuppressDisable() {
+        Afl.jsApiSetInstrumentSuppressDisable();
+    }
     /**
      * See `AFL_FRIDA_INST_TRACE_UNIQUE`.
      */
@@ -339,6 +345,7 @@ Afl.jsApiSetInstrumentLibraries = Afl.jsApiGetFunction("js_api_set_instrument_li
 Afl.jsApiSetInstrumentNoOptimize = Afl.jsApiGetFunction("js_api_set_instrument_no_optimize", "void", []);
 Afl.jsApiSetInstrumentRegsFile = Afl.jsApiGetFunction("js_api_set_instrument_regs_file", "void", ["pointer"]);
 Afl.jsApiSetInstrumentSeed = Afl.jsApiGetFunction("js_api_set_instrument_seed", "void", ["uint64"]);
+Afl.jsApiSetInstrumentSuppressDisable = Afl.jsApiGetFunction("js_api_set_instrument_suppress_disable", "void", []);
 Afl.jsApiSetInstrumentTrace = Afl.jsApiGetFunction("js_api_set_instrument_trace", "void", []);
 Afl.jsApiSetInstrumentTraceUnique = Afl.jsApiGetFunction("js_api_set_instrument_trace_unique", "void", []);
 Afl.jsApiSetInstrumentUnstableCoverageFile = Afl.jsApiGetFunction("js_api_set_instrument_unstable_coverage_file", "void", ["pointer"]);
diff --git a/frida_mode/src/js/js_api.c b/frida_mode/src/js/js_api.c
index 01bba4ff..2e996c1c 100644
--- a/frida_mode/src/js/js_api.c
+++ b/frida_mode/src/js/js_api.c
@@ -289,6 +289,13 @@ __attribute__((visibility("default"))) void js_api_set_instrument_cache_size(
 
 }
 
+__attribute__((visibility("default"))) void
+js_api_set_instrument_suppress_disable(void) {
+
+  instrument_suppress = false;
+
+}
+
 __attribute__((visibility("default"))) void js_api_set_js_main_hook(
     const js_main_hook_t hook) {
 
diff --git a/frida_mode/test/png/GNUmakefile b/frida_mode/test/png/GNUmakefile
index 86fd1483..408b7dcb 100644
--- a/frida_mode/test/png/GNUmakefile
+++ b/frida_mode/test/png/GNUmakefile
@@ -25,7 +25,7 @@ HARNESS_URL:="https://raw.githubusercontent.com/llvm/llvm-project/main/compiler-
 
 PNGTEST_FILE:=$(PNGTEST_BUILD_DIR)target.cc
 PNGTEST_OBJ:=$(PNGTEST_BUILD_DIR)target.o
-PNGTEST_URL:="https://raw.githubusercontent.com/google/fuzzbench/master/benchmarks/libpng-1.2.56/target.cc"
+PNGTEST_URL:="https://raw.githubusercontent.com/google/fuzzbench/e0c4a994b6999bae46e8dec5bcea9a73251b8dba/benchmarks/libpng-1.2.56/target.cc"
 
 TEST_BIN:=$(BUILD_DIR)test
 ifeq "$(shell uname)" "Darwin"
diff --git a/frida_mode/ts/lib/afl.ts b/frida_mode/ts/lib/afl.ts
index 7a83c0fb..6a2350e7 100644
--- a/frida_mode/ts/lib/afl.ts
+++ b/frida_mode/ts/lib/afl.ts
@@ -201,6 +201,13 @@ class Afl {
     Afl.jsApiSetInstrumentSeed(seed);
   }
 
+  /*
+   * See `AFL_FRIDA_INST_NO_SUPPRESS`
+   */
+  public static setInstrumentSuppressDisable(): void{
+    Afl.jsApiSetInstrumentSuppressDisable();
+  }
+
   /**
    * See `AFL_FRIDA_INST_TRACE_UNIQUE`.
    */
@@ -451,6 +458,11 @@ class Afl {
     "void",
     ["uint64"]);
 
+  private static readonly jsApiSetInstrumentSuppressDisable = Afl.jsApiGetFunction(
+    "js_api_set_instrument_suppress_disable",
+    "void",
+    []);
+
   private static readonly jsApiSetInstrumentTrace = Afl.jsApiGetFunction(
     "js_api_set_instrument_trace",
     "void",
diff --git a/frida_mode/ts/package-lock.json b/frida_mode/ts/package-lock.json
index e766c2c2..670d7a83 100644
--- a/frida_mode/ts/package-lock.json
+++ b/frida_mode/ts/package-lock.json
@@ -1,11 +1,433 @@
 {
-  "requires": true,
+  "name": "@worksbutnottested/aflplusplus-frida",
+  "version": "1.0.1",
   "lockfileVersion": 1,
+  "requires": true,
   "dependencies": {
-    "tsc": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/tsc/-/tsc-2.0.3.tgz",
-      "integrity": "sha512-SN+9zBUtrpUcOpaUO7GjkEHgWtf22c7FKbKCA4e858eEM7Qz86rRDpgOU2lBIDf0fLCsEg65ms899UMUIB2+Ow==",
+    "@babel/code-frame": {
+      "version": "7.18.6",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.18.6.tgz",
+      "integrity": "sha512-TDCmlK5eOvH+eH7cdAFlNXeVJqWIQ7gW9tY1GJIpUtFb6CmjVyq2VM3u71bOyR8CRihcCgMUYoDNyLXao3+70Q==",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.18.6"
+      }
+    },
+    "@babel/helper-validator-identifier": {
+      "version": "7.19.1",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.19.1.tgz",
+      "integrity": "sha512-awrNfaMtnHUr653GgGEs++LlAvW6w+DcPrOliSMXWCKo597CwL5Acf/wWdNkf/tfEQE3mjkeD1YOVZOUV/od1w==",
+      "dev": true
+    },
+    "@babel/highlight": {
+      "version": "7.18.6",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.18.6.tgz",
+      "integrity": "sha512-u7stbOuYjaPezCuLj29hNW1v64M2Md2qupEKP1fHc7WdOA3DgLh37suiSrZYY7haUB7iBeQZ9P1uiRF359do3g==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-validator-identifier": "^7.18.6",
+        "chalk": "^2.0.0",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "@types/frida-gum": {
+      "version": "16.5.1",
+      "resolved": "https://registry.npmjs.org/@types/frida-gum/-/frida-gum-16.5.1.tgz",
+      "integrity": "sha512-t+2HZG6iBO2cEKtb2KvtP33m/7TGmzSd42YqznToA34+TkS97NttsFZ9OY2s0hPyDQOg+hZTjR1QggRkEL/Ovg=="
+    },
+    "@types/node": {
+      "version": "14.18.36",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.18.36.tgz",
+      "integrity": "sha512-FXKWbsJ6a1hIrRxv+FoukuHnGTgEzKYGi7kilfMae96AL9UNkPFNWJEEYWzdRI9ooIkbr4AKldyuSTLql06vLQ==",
+      "dev": true
+    },
+    "ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
+      "requires": {
+        "color-convert": "^1.9.0"
+      }
+    },
+    "argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
+      "requires": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
+    "balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
+      "dev": true
+    },
+    "brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
+      "requires": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "builtin-modules": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
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+      "dev": true
+    },
+    "chalk": {
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "^3.2.1",
+        "escape-string-regexp": "^1.0.5",
+        "supports-color": "^5.3.0"
+      }
+    },
+    "color-convert": {
+      "version": "1.9.3",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
+      "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
+      "dev": true,
+      "requires": {
+        "color-name": "1.1.3"
+      }
+    },
+    "color-name": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
+      "integrity": "sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw==",
+      "dev": true
+    },
+    "commander": {
+      "version": "2.20.3",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+      "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+      "dev": true
+    },
+    "concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
+      "dev": true
+    },
+    "diff": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
+      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
+      "dev": true
+    },
+    "escape-string-regexp": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+      "integrity": "sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg==",
+      "dev": true
+    },
+    "esprima": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+      "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+      "dev": true
+    },
+    "fs.realpath": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "integrity": "sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==",
+      "dev": true
+    },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
+      "dev": true
+    },
+    "get-caller-file": {
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diff --git a/include/envs.h b/include/envs.h
index f4cdf390..46fc796b 100644
--- a/include/envs.h
+++ b/include/envs.h
@@ -68,6 +68,7 @@ static char *afl_environment_variables[] = {
     "AFL_FRIDA_INST_NO_OPTIMIZE",
     "AFL_FRIDA_INST_NO_PREFETCH",
     "AFL_FRIDA_INST_NO_PREFETCH_BACKPATCH",
+    "AFL_FRIDA_INST_NO_SUPPRESS"
     "AFL_FRIDA_INST_RANGES",
     "AFL_FRIDA_INST_REGS_FILE",
     "AFL_FRIDA_INST_SEED",