diff options
| -rw-r--r-- | GNUmakefile | 3 | ||||
| -rw-r--r-- | docs/INSTALL.md | 10 | ||||
| -rw-r--r-- | instrumentation/afl-compiler-rt.o.c | 14 | ||||
| -rw-r--r-- | src/afl-cc.c | 31 |
4 files changed, 36 insertions, 22 deletions
diff --git a/GNUmakefile b/GNUmakefile index 5900ad61..56b8bb42 100644 --- a/GNUmakefile +++ b/GNUmakefile @@ -379,6 +379,7 @@ help: @echo Known build environment options: @echo "==========================================" @echo STATIC - compile AFL++ static + @echo CODE_COVERAGE - compile the target for code coverage (see docs/instrumentation/README.llvm.md) @echo ASAN_BUILD - compiles AFL++ with memory sanitizer for debug purposes @echo UBSAN_BUILD - compiles AFL++ tools with undefined behaviour sanitizer for debug purposes @echo DEBUG - no optimization, -ggdb3, all warnings and -Werror @@ -394,7 +395,7 @@ help: @echo AFL_NO_X86 - if compiling on non-intel/amd platforms @echo "LLVM_CONFIG - if your distro doesn't use the standard name for llvm-config (e.g., Debian)" @echo "==========================================" - @echo e.g.: make ASAN_BUILD=1 + @echo e.g.: make LLVM_CONFIG=llvm-config-16 .PHONY: test_x86 ifndef AFL_NO_X86 diff --git a/docs/INSTALL.md b/docs/INSTALL.md index c54cb9ad..637e8658 100644 --- a/docs/INSTALL.md +++ b/docs/INSTALL.md @@ -79,22 +79,20 @@ make STATIC=1 These build options exist: * STATIC - compile AFL++ static +* CODE_COVERAGE - compile the target for code coverage (see docs/instrumentation/README.llvm.md) * ASAN_BUILD - compiles AFL++ with memory sanitizer for debug purposes -* UBSAN_BUILD - compiles AFL++ tools with undefined behaviour sanitizer for - debug purposes +* UBSAN_BUILD - compiles AFL++ tools with undefined behaviour sanitizer for debug purposes * DEBUG - no optimization, -ggdb3, all warnings and -Werror * LLVM_DEBUG - shows llvm deprecation warnings * PROFILING - compile afl-fuzz with profiling information * INTROSPECTION - compile afl-fuzz with mutation introspection * NO_PYTHON - disable python support -* NO_SPLICING - disables splicing mutation in afl-fuzz, not recommended for - normal fuzzing +* NO_SPLICING - disables splicing mutation in afl-fuzz, not recommended for normal fuzzing * NO_NYX - disable building nyx mode dependencies * NO_CORESIGHT - disable building coresight (arm64 only) * NO_UNICORN_ARM64 - disable building unicorn on arm64 * AFL_NO_X86 - if compiling on non-intel/amd platforms -* LLVM_CONFIG - if your distro doesn't use the standard name for llvm-config - (e.g., Debian) +* LLVM_CONFIG - if your distro doesn't use the standard name for llvm-config (e.g., Debian) e.g.: `make LLVM_CONFIG=llvm-config-14` diff --git a/instrumentation/afl-compiler-rt.o.c b/instrumentation/afl-compiler-rt.o.c index 3f8b519b..5372fae0 100644 --- a/instrumentation/afl-compiler-rt.o.c +++ b/instrumentation/afl-compiler-rt.o.c @@ -544,12 +544,12 @@ static void __afl_map_shm(void) { if (__afl_map_size && __afl_map_size > MAP_SIZE) { - u8 *map_env = (u8 *)getenv("AFL_MAP_SIZE"); - if (!map_env || atoi((char *)map_env) < MAP_SIZE) { + u8 *map_env = (u8 *)getenv("AFL_MAP_SIZE"); + if (!map_env || atoi((char *)map_env) < MAP_SIZE) { - fprintf(stderr, "FS_ERROR_MAP_SIZE\n"); - send_forkserver_error(FS_ERROR_MAP_SIZE); - _exit(1); + fprintf(stderr, "FS_ERROR_MAP_SIZE\n"); + send_forkserver_error(FS_ERROR_MAP_SIZE); + _exit(1); } @@ -561,13 +561,13 @@ static void __afl_map_shm(void) { if (!__afl_area_ptr || __afl_area_ptr == (void *)-1) { - if (__afl_map_addr) + if (__afl_map_addr) send_forkserver_error(FS_ERROR_MAP_ADDR); else send_forkserver_error(FS_ERROR_SHMAT); perror("shmat for map"); - _exit(1); + _exit(1); } diff --git a/src/afl-cc.c b/src/afl-cc.c index b11a041d..19314555 100644 --- a/src/afl-cc.c +++ b/src/afl-cc.c @@ -752,15 +752,21 @@ static void edit_params(u32 argc, char **argv, char **envp) { } else if (instrument_mode == INSTRUMENT_LLVMNATIVE) { #if LLVM_MAJOR >= 4 - if (instrument_opt_mode & INSTRUMENT_OPT_CODECOV) { + if (instrument_opt_mode & INSTRUMENT_OPT_CODECOV) { + #if LLVM_MAJOR >= 6 - cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard,bb,no-prune,pc-table"; + cc_params[cc_par_cnt++] = + "-fsanitize-coverage=trace-pc-guard,bb,no-prune,pc-table"; #else FATAL("pcguard instrumentation with pc-table requires llvm 6.0.1+"); #endif - } else { + + } else { + cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard"; - } + + } + #else FATAL("pcguard instrumentation requires llvm 4.0.1+"); #endif @@ -1660,13 +1666,17 @@ int main(int argc, char **argv, char **envp) { instrument_mode = INSTRUMENT_CLASSIC; lto_mode = 1; - } else if (!instrument_mode || instrument_mode == INSTRUMENT_AFL) + } else if (!instrument_mode || instrument_mode == INSTRUMENT_AFL) { instrument_mode = INSTRUMENT_AFL; - else + + } else { + FATAL("main instrumentation mode already set with %s", instrument_mode_string[instrument_mode]); + } + } if (strncasecmp(ptr2, "pc-guard", strlen("pc-guard")) == 0 || @@ -1695,12 +1705,17 @@ int main(int argc, char **argv, char **envp) { strncasecmp(ptr2, "llvm-codecov", strlen("llvm-codecov")) == 0) { if (!instrument_mode || instrument_mode == INSTRUMENT_LLVMNATIVE) { + instrument_mode = INSTRUMENT_LLVMNATIVE; - instrument_opt_mode |= INSTRUMENT_OPT_CODECOV; - } else + instrument_opt_mode |= INSTRUMENT_OPT_CODECOV; + + } else { + FATAL("main instrumentation mode already set with %s", instrument_mode_string[instrument_mode]); + } + } if (strncasecmp(ptr2, "cfg", strlen("cfg")) == 0 || |