making AFL_MAP_SIZE obsolete
MODIFY
afl-cmin
afl-cmin
@@ -343,7 +343,7 @@ BEGIN {
stat_format = "-f '%z %N'" # *BSD, MacOS
}
cmdline = "cd "in_dir" && find . \\( ! -name . -a -type d -prune \\) -o -type f -exec stat "stat_format" \\{\\} \\; | sort -k1n -k2r"
- cmdline = "ls "in_dir" | (cd "in_dir" && xargs stat "stat_format") | sort -k1n -k2r"
+ cmdline = "ls "in_dir" | (cd "in_dir" && xargs stat "stat_format" 2>/dev/null) | sort -k1n -k2r"
while (cmdline | getline) {
sub(/^[0-9]+ (\.\/)?/,"",$0)
infilesSmallToBig[i++] = $0
@@ -355,7 +355,7 @@ BEGIN {
# Make sure that we're not dealing with a directory.
if (0 == system("test -d "in_dir"/"first_file)) {
- print "[-] Error: The input directory contains subdirectories - please fix." > "/dev/stderr"
+ print "[-] Error: The input directory is empty or contains subdirectories - please fix." > "/dev/stderr"
exit 1
}

MODIFY
docs/Changelog.md
docs/Changelog.md
@@ -16,6 +16,8 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
to be placed in the source code.
Check out instrumentation/README.instrument_list.md
- afl-fuzz
+ - Making AFL_MAP_SIZE obsolete - afl-fuzz now learns on start the
+ target map size
- upgraded cmplog/redqueen: solving for floating point, solving
transformations (e.g. toupper, tolower, to/from hex, xor,
arithmetics, etc.). this is costly hence new command line option

MODIFY
include/forkserver.h
include/forkserver.h
@@ -120,11 +120,14 @@ void afl_fsrv_init(afl_forkserver_t *fsrv);
void afl_fsrv_init_dup(afl_forkserver_t *fsrv_to, afl_forkserver_t *from);
void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
volatile u8 *stop_soon_p, u8 debug_child_output);
+u32 afl_fsrv_get_mapsize(afl_forkserver_t *fsrv, char **argv,
+ volatile u8 *stop_soon_p, u8 debug_child_output);
void afl_fsrv_write_to_testcase(afl_forkserver_t *fsrv, u8 *buf, size_t len);
fsrv_run_result_t afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
volatile u8 *stop_soon_p);
void afl_fsrv_killall(void);
void afl_fsrv_deinit(afl_forkserver_t *fsrv);
+void afl_fsrv_kill(afl_forkserver_t *fsrv);
#ifdef __APPLE__
#define MSG_FORK_ON_APPLE \

MODIFY
include/sharedmem.h
include/sharedmem.h
@@ -51,6 +51,7 @@ typedef struct sharedmem {
size_t map_size; /* actual allocated size */
int cmplog_mode;
+ int shmemfuzz_mode;
struct cmp_map *cmp_map;
} sharedmem_t;

MODIFY
src/afl-forkserver.c
src/afl-forkserver.c
@@ -682,11 +682,7 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
if ((status & FS_OPT_AUTODICT) == FS_OPT_AUTODICT) {
- if (ignore_autodict) {
-
- if (!be_quiet) { WARNF("Ignoring offered AUTODICT feature."); }
-
- } else {
+ if (!ignore_autodict) {
if (fsrv->add_extra_func == NULL || fsrv->afl_ptr == NULL) {
@@ -969,7 +965,9 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
}
-static void afl_fsrv_kill(afl_forkserver_t *fsrv) {
+/* Stop the forkserver and child */
+
+void afl_fsrv_kill(afl_forkserver_t *fsrv) {
if (fsrv->child_pid > 0) { kill(fsrv->child_pid, fsrv->kill_signal); }
if (fsrv->fsrv_pid > 0) {
@@ -979,13 +977,28 @@ static void afl_fsrv_kill(afl_forkserver_t *fsrv) {
}
+ close(fsrv->fsrv_ctl_fd);
+ close(fsrv->fsrv_st_fd);
+ fsrv->fsrv_pid = -1;
+ fsrv->child_pid = -1;
+
+}
+
+/* Get the map size from the target forkserver */
+
+u32 afl_fsrv_get_mapsize(afl_forkserver_t *fsrv, char **argv,
+ volatile u8 *stop_soon_p, u8 debug_child_output) {
+
+ afl_fsrv_start(fsrv, argv, stop_soon_p, debug_child_output);
+ return fsrv->map_size;
+
}
/* Delete the current testcase and write the buf to the testcase file */
void afl_fsrv_write_to_testcase(afl_forkserver_t *fsrv, u8 *buf, size_t len) {
- if (fsrv->shmem_fuzz) {
+ if (likely(fsrv->use_shmem_fuzz && fsrv->shmem_fuzz)) {
if (unlikely(len > MAX_FILE)) len = MAX_FILE;
@@ -1042,6 +1055,7 @@ void afl_fsrv_write_to_testcase(afl_forkserver_t *fsrv, u8 *buf, size_t len) {
}
+ // fprintf(stderr, "WRITE %d %u\n", fd, len);
ck_write(fd, buf, len, fsrv->out_file);
if (fsrv->use_stdin) {

MODIFY
src/afl-fuzz-init.c
src/afl-fuzz-init.c
@@ -766,14 +766,17 @@ void read_testcases(afl_state_t *afl, u8 *directory) {
}
+ /*
if (unlikely(afl->schedule >= FAST && afl->schedule <= RARE)) {
- u64 cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
- afl->queue_top->n_fuzz_entry = cksum % N_FUZZ_SIZE;
+ u64 cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size,
+ HASH_CONST); afl->queue_top->n_fuzz_entry = cksum % N_FUZZ_SIZE;
afl->n_fuzz[afl->queue_top->n_fuzz_entry] = 1;
}
+ */
+
}
free(nl); /* not tracked */
@@ -2490,6 +2493,7 @@ void setup_testcase_shmem(afl_state_t *afl) {
// we need to set the non-instrumented mode to not overwrite the SHM_ENV_VAR
u8 *map = afl_shm_init(afl->shm_fuzz, MAX_FILE + sizeof(u32), 1);
+ afl->shm_fuzz->shmemfuzz_mode = 1;
if (!map) { FATAL("BUG: Zero return from afl_shm_init."); }

MODIFY
src/afl-fuzz.c
src/afl-fuzz.c
@@ -342,7 +342,6 @@ int main(int argc, char **argv_orig, char **envp) {
afl->debug = debug;
afl_fsrv_init(&afl->fsrv);
if (debug) { afl->fsrv.debug = true; }
-
read_afl_environment(afl, envp);
if (afl->shm.map_size) { afl->fsrv.map_size = afl->shm.map_size; }
exit_1 = !!afl->afl_env.afl_bench_just_one;
@@ -702,7 +701,6 @@ int main(int argc, char **argv_orig, char **envp) {
if (afl->in_bitmap) { FATAL("Multiple -B options not supported"); }
afl->in_bitmap = optarg;
- read_bitmap(afl->in_bitmap, afl->virgin_bits, afl->fsrv.map_size);
break;
case 'C': /* crash mode */
@@ -1369,13 +1367,6 @@ int main(int argc, char **argv_orig, char **envp) {
set_scheduler_mode(SCHEDULER_MODE_LOW_LATENCY);
#endif
- afl->fsrv.trace_bits =
- afl_shm_init(&afl->shm, afl->fsrv.map_size, afl->non_instrumented_mode);
-
- if (!afl->in_bitmap) { memset(afl->virgin_bits, 255, afl->fsrv.map_size); }
- memset(afl->virgin_tmout, 255, afl->fsrv.map_size);
- memset(afl->virgin_crash, 255, afl->fsrv.map_size);
-
init_count_class16();
if (afl->is_main_node && check_main_node_exists(afl) == 1) {
@@ -1542,6 +1533,70 @@ int main(int argc, char **argv_orig, char **envp) {
}
afl->argv = use_argv;
+ afl->fsrv.trace_bits =
+ afl_shm_init(&afl->shm, afl->fsrv.map_size, afl->non_instrumented_mode);
+
+ if (!afl->non_instrumented_mode) {
+
+ afl->fsrv.map_size = 4194304; // dummy temporary value
+
+ u32 new_map_size = afl_fsrv_get_mapsize(
+ &afl->fsrv, afl->argv, &afl->stop_soon, afl->afl_env.afl_debug_child);
+
+ if (new_map_size && new_map_size != 4194304) {
+
+ // only reinitialize when it makes sense
+ if (map_size != new_map_size) {
+
+ // if (map_size < new_map_size ||
+ // (new_map_size > map_size && new_map_size - map_size >
+ // MAP_SIZE)) {
+
+ OKF("Re-initializing maps to %u bytes", new_map_size);
+
+ afl->virgin_bits = ck_realloc(afl->virgin_bits, map_size);
+ afl->virgin_tmout = ck_realloc(afl->virgin_tmout, map_size);
+ afl->virgin_crash = ck_realloc(afl->virgin_crash, map_size);
+ afl->var_bytes = ck_realloc(afl->var_bytes, map_size);
+ afl->top_rated = ck_realloc(afl->top_rated, map_size * sizeof(void *));
+ afl->clean_trace = ck_realloc(afl->clean_trace, map_size);
+ afl->clean_trace_custom = ck_realloc(afl->clean_trace_custom, map_size);
+ afl->first_trace = ck_realloc(afl->first_trace, map_size);
+ afl->map_tmp_buf = ck_realloc(afl->map_tmp_buf, map_size);
+
+ afl_shm_deinit(&afl->shm);
+ afl_fsrv_kill(&afl->fsrv);
+ afl->fsrv.map_size = new_map_size;
+ afl->fsrv.trace_bits = afl_shm_init(&afl->shm, afl->fsrv.map_size,
+ afl->non_instrumented_mode);
+ setenv("AFL_NO_AUTODICT", "1", 1); // loaded already
+ afl_fsrv_start(&afl->fsrv, afl->argv, &afl->stop_soon,
+ afl->afl_env.afl_debug_child);
+
+ }
+
+ map_size = new_map_size;
+
+ }
+
+ afl->fsrv.map_size = map_size;
+
+ }
+
+ // after we have the correct bitmap size we can read the bitmap -B option
+ // and set the virgin maps
+ if (!afl->in_bitmap) {
+
+ memset(afl->virgin_bits, 255, afl->fsrv.map_size);
+
+ } else {
+
+ read_bitmap(afl->in_bitmap, afl->virgin_bits, afl->fsrv.map_size);
+
+ }
+
+ memset(afl->virgin_tmout, 255, afl->fsrv.map_size);
+ memset(afl->virgin_crash, 255, afl->fsrv.map_size);
if (afl->cmplog_binary) {

MODIFY
src/afl-sharedmem.c
src/afl-sharedmem.c
@@ -66,9 +66,17 @@ static list_t shm_list = {.element_prealloc_count = 0};
void afl_shm_deinit(sharedmem_t *shm) {
- if (shm == NULL) return;
-
+ if (shm == NULL) { return; }
list_remove(&shm_list, shm);
+ if (shm->shmemfuzz_mode) {
+
+ unsetenv(SHM_FUZZ_ENV_VAR);
+
+ } else {
+
+ unsetenv(SHM_ENV_VAR);
+
+ }
#ifdef USEMMAP
if (shm->map != NULL) {
@@ -94,6 +102,8 @@ void afl_shm_deinit(sharedmem_t *shm) {
if (shm->cmplog_mode) {
+ unsetenv(CMPLOG_SHM_ENV_VAR);
+
if (shm->cmp_map != NULL) {
munmap(shm->cmp_map, shm->map_size);

MODIFY
src/afl-showmap.c
src/afl-showmap.c
@@ -86,7 +86,8 @@ static u8 quiet_mode, /* Hide non-essential messages? */
remove_shm = 1, /* remove shmem? */
collect_coverage, /* collect coverage */
have_coverage, /* have coverage? */
- no_classify; /* do not classify counts */
+ no_classify, /* do not classify counts */
+ debug; /* debug mode */
static volatile u8 stop_soon, /* Ctrl-C pressed? */
child_crashed; /* Child crashed? */
@@ -743,6 +744,7 @@ int main(int argc, char **argv_orig, char **envp) {
char **argv = argv_cpy_dup(argc, argv_orig);
afl_forkserver_t fsrv_var = {0};
+ if (getenv("AFL_DEBUG")) { debug = 1; }
fsrv = &fsrv_var;
afl_fsrv_init(fsrv);
map_size = get_map_size();
@@ -991,14 +993,16 @@ int main(int argc, char **argv_orig, char **envp) {
// if (afl->shmem_testcase_mode) { setup_testcase_shmem(afl); }
+ setenv("AFL_NO_AUTODICT", "1", 1);
+
/* initialize cmplog_mode */
shm.cmplog_mode = 0;
- fsrv->trace_bits = afl_shm_init(&shm, map_size, 0);
setup_signal_handlers();
set_up_environment(fsrv);
fsrv->target_path = find_binary(argv[optind]);
+ fsrv->trace_bits = afl_shm_init(&shm, map_size, 0);
if (!quiet_mode) {
@@ -1051,6 +1055,7 @@ int main(int argc, char **argv_orig, char **envp) {
/* initialize cmplog_mode */
shm_fuzz->cmplog_mode = 0;
u8 *map = afl_shm_init(shm_fuzz, MAX_FILE + sizeof(u32), 1);
+ shm_fuzz->shmemfuzz_mode = 1;
if (!map) { FATAL("BUG: Zero return from afl_shm_init."); }
#ifdef USEMMAP
setenv(SHM_FUZZ_ENV_VAR, shm_fuzz->g_shm_file_path, 1);
@@ -1063,6 +1068,38 @@ int main(int argc, char **argv_orig, char **envp) {
fsrv->shmem_fuzz_len = (u32 *)map;
fsrv->shmem_fuzz = map + sizeof(u32);
+ u32 save_be_quiet = be_quiet;
+ be_quiet = debug;
+ fsrv->map_size = 4194304; // dummy temporary value
+ u32 new_map_size = afl_fsrv_get_mapsize(
+ fsrv, use_argv, &stop_soon,
+ (get_afl_env("AFL_DEBUG_CHILD") || get_afl_env("AFL_DEBUG_CHILD_OUTPUT"))
+ ? 1
+ : 0);
+ be_quiet = save_be_quiet;
+
+ if (new_map_size) {
+
+ // only reinitialize when it makes sense
+ if (map_size < new_map_size ||
+ (new_map_size > map_size && new_map_size - map_size > MAP_SIZE)) {
+
+ if (!be_quiet)
+ ACTF("Aquired new map size for target: %u bytes\n", new_map_size);
+
+ afl_shm_deinit(&shm);
+ afl_fsrv_kill(fsrv);
+ fsrv->map_size = new_map_size;
+ fsrv->trace_bits = afl_shm_init(&shm, new_map_size, 0);
+
+ }
+
+ map_size = new_map_size;
+
+ }
+
+ fsrv->map_size = map_size;
+
if (in_dir) {
DIR * dir_in, *dir_out = NULL;

MODIFY
src/afl-tmin.c
src/afl-tmin.c
@@ -79,7 +79,8 @@ static u8 crash_mode, /* Crash-centric mode? */
edges_only, /* Ignore hit counts? */
exact_mode, /* Require path match for crashes? */
remove_out_file, /* remove out_file on exit? */
- remove_shm = 1; /* remove shmem on exit? */
+ remove_shm = 1, /* remove shmem on exit? */
+ debug; /* debug mode */
static volatile u8 stop_soon; /* Ctrl-C pressed? */
@@ -878,6 +879,7 @@ int main(int argc, char **argv_orig, char **envp) {
char **argv = argv_cpy_dup(argc, argv_orig);
afl_forkserver_t fsrv_var = {0};
+ if (getenv("AFL_DEBUG")) { debug = 1; }
fsrv = &fsrv_var;
afl_fsrv_init(fsrv);
map_size = get_map_size();
@@ -1074,6 +1076,7 @@ int main(int argc, char **argv_orig, char **envp) {
if (optind == argc || !in_file || !output_file) { usage(argv[0]); }
check_environment_vars(envp);
+ setenv("AFL_NO_AUTODICT", "1", 1);
if (fsrv->qemu_mode && getenv("AFL_USE_QASAN")) {
@@ -1102,7 +1105,6 @@ int main(int argc, char **argv_orig, char **envp) {
/* initialize cmplog_mode */
shm.cmplog_mode = 0;
- fsrv->trace_bits = afl_shm_init(&shm, map_size, 0);
atexit(at_exit_handler);
setup_signal_handlers();
@@ -1110,6 +1112,7 @@ int main(int argc, char **argv_orig, char **envp) {
set_up_environment(fsrv);
fsrv->target_path = find_binary(argv[optind]);
+ fsrv->trace_bits = afl_shm_init(&shm, map_size, 0);
detect_file_args(argv + optind, out_file, &fsrv->use_stdin);
if (fsrv->qemu_mode) {
@@ -1181,6 +1184,7 @@ int main(int argc, char **argv_orig, char **envp) {
/* initialize cmplog_mode */
shm_fuzz->cmplog_mode = 0;
u8 *map = afl_shm_init(shm_fuzz, MAX_FILE + sizeof(u32), 1);
+ shm_fuzz->shmemfuzz_mode = 1;
if (!map) { FATAL("BUG: Zero return from afl_shm_init."); }
#ifdef USEMMAP
setenv(SHM_FUZZ_ENV_VAR, shm_fuzz->g_shm_file_path, 1);
@@ -1195,12 +1199,39 @@ int main(int argc, char **argv_orig, char **envp) {
read_initial_file();
- afl_fsrv_start(
+ fsrv->map_size = 4194304; // dummy temporary value
+ u32 new_map_size = afl_fsrv_get_mapsize(
fsrv, use_argv, &stop_soon,
(get_afl_env("AFL_DEBUG_CHILD") || get_afl_env("AFL_DEBUG_CHILD_OUTPUT"))
? 1
: 0);
+ if (new_map_size) {
+
+ if (map_size < new_map_size ||
+ (new_map_size > map_size && new_map_size - map_size > MAP_SIZE)) {
+
+ if (!be_quiet)
+ ACTF("Aquired new map size for target: %u bytes\n", new_map_size);
+
+ afl_shm_deinit(&shm);
+ afl_fsrv_kill(fsrv);
+ fsrv->map_size = new_map_size;
+ fsrv->trace_bits = afl_shm_init(&shm, new_map_size, 0);
+ afl_fsrv_start(fsrv, use_argv, &stop_soon,
+ (get_afl_env("AFL_DEBUG_CHILD") ||
+ get_afl_env("AFL_DEBUG_CHILD_OUTPUT"))
+ ? 1
+ : 0);
+
+ }
+
+ map_size = new_map_size;
+
+ }
+
+ fsrv->map_size = map_size;
+
if (fsrv->support_shmem_fuzz && !fsrv->use_shmem_fuzz)
shm_fuzz = deinit_shmem(fsrv, shm_fuzz);

MODIFY
test-instr.c
test-instr.c
@@ -32,7 +32,8 @@ int main(int argc, char **argv) {
} else {
- if (argc >= 3 && strcmp(argv[1], "-f") == 0)
+ if (argc >= 3 && strcmp(argv[1], "-f") == 0) {
+
if ((fd = open(argv[2], O_RDONLY)) < 0) {
fprintf(stderr, "Error: unable to open %s\n", argv[2]);
@@ -40,6 +41,8 @@ int main(int argc, char **argv) {
}
+ }
+
if (read(fd, buf, sizeof(buf)) < 1) {
printf("Hum?\n");

MODIFY
test/test-basic.sh
test/test-basic.sh
@@ -11,8 +11,8 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
AFL_HARDEN=1 ../${AFL_GCC} -o test-compcov.harden test-compcov.c > /dev/null 2>&1
test -e test-instr.plain && {
$ECHO "$GREEN[+] ${AFL_GCC} compilation succeeded"
- echo 0 | ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
- ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
+ echo 0 | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
+ AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
test -e test-instr.plain.0 -a -e test-instr.plain.1 && {
diff test-instr.plain.0 test-instr.plain.1 > /dev/null 2>&1 && {
$ECHO "$RED[!] ${AFL_GCC} instrumentation should be different on different input but is not"
@@ -26,7 +26,7 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
}
rm -f test-instr.plain.0 test-instr.plain.1
SKIP=
- TUPLES=`echo 1|../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
+ TUPLES=`echo 1|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
test "$TUPLES" -gt 1 -a "$TUPLES" -lt 12 && {
$ECHO "$GREEN[+] ${AFL_GCC} run reported $TUPLES instrumented locations which is fine"
} || {
@@ -132,8 +132,8 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
AFL_HARDEN=1 ../${AFL_GCC} -o test-compcov.harden test-compcov.c > /dev/null 2>&1
test -e test-instr.plain && {
$ECHO "$GREEN[+] ${AFL_GCC} compilation succeeded"
- echo 0 | ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
- ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
+ echo 0 | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
+ AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
test -e test-instr.plain.0 -a -e test-instr.plain.1 && {
diff test-instr.plain.0 test-instr.plain.1 > /dev/null 2>&1 && {
$ECHO "$RED[!] ${AFL_GCC} instrumentation should be different on different input but is not"
@@ -146,7 +146,7 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
CODE=1
}
rm -f test-instr.plain.0 test-instr.plain.1
- TUPLES=`echo 1|../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
+ TUPLES=`echo 1|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
test "$TUPLES" -gt 1 -a "$TUPLES" -lt 12 && {
$ECHO "$GREEN[+] ${AFL_GCC} run reported $TUPLES instrumented locations which is fine"
} || {

MODIFY
test/test-gcc-plugin.sh
test/test-gcc-plugin.sh
@@ -10,15 +10,15 @@ test -e ../afl-gcc-fast -a -e ../afl-compiler-rt.o && {
AFL_HARDEN=1 ../afl-gcc-fast -o test-compcov.harden.gccpi test-compcov.c > /dev/null 2>&1
test -e test-instr.plain.gccpi && {
$ECHO "$GREEN[+] gcc_plugin compilation succeeded"
- echo 0 | ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain.gccpi > /dev/null 2>&1
- ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain.gccpi < /dev/null > /dev/null 2>&1
+ echo 0 | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain.gccpi > /dev/null 2>&1
+ AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain.gccpi < /dev/null > /dev/null 2>&1
test -e test-instr.plain.0 -a -e test-instr.plain.1 && {
diff test-instr.plain.0 test-instr.plain.1 > /dev/null 2>&1 && {
$ECHO "$RED[!] gcc_plugin instrumentation should be different on different input but is not"
CODE=1
} || {
$ECHO "$GREEN[+] gcc_plugin instrumentation present and working correctly"
- TUPLES=`echo 0|../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain.gccpi 2>&1 | grep Captur | awk '{print$3}'`
+ TUPLES=`echo 0|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain.gccpi 2>&1 | grep Captur | awk '{print$3}'`
test "$TUPLES" -gt 1 -a "$TUPLES" -lt 9 && {
$ECHO "$GREEN[+] gcc_plugin run reported $TUPLES instrumented locations which is fine"
} || {
@@ -87,7 +87,7 @@ test -e ../afl-gcc-fast -a -e ../afl-compiler-rt.o && {
echo foobar.c > instrumentlist.txt
AFL_GCC_INSTRUMENT_FILE=instrumentlist.txt ../afl-gcc-fast -o test-compcov test-compcov.c > /dev/null 2>&1
test -x test-compcov && test_compcov_binary_functionality ./test-compcov && {
- echo 1 | ../afl-showmap -m ${MEM_LIMIT} -o - -r -- ./test-compcov 2>&1 | grep -q "Captured 0 tuples" && {
+ echo 1 | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o - -r -- ./test-compcov 2>&1 | grep -q "Captured 0 tuples" && {
$ECHO "$GREEN[+] gcc_plugin instrumentlist feature works correctly"
} || {
$ECHO "$RED[!] gcc_plugin instrumentlist feature failed"
@@ -100,7 +100,7 @@ test -e ../afl-gcc-fast -a -e ../afl-compiler-rt.o && {
rm -f test-compcov test.out instrumentlist.txt
../afl-gcc-fast -o test-persistent ../utils/persistent_mode/persistent_demo.c > /dev/null 2>&1
test -e test-persistent && {
- echo foo | ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -q -r ./test-persistent && {
+ echo foo | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -q -r ./test-persistent && {
$ECHO "$GREEN[+] gcc_plugin persistent mode feature works correctly"
} || {
$ECHO "$RED[!] gcc_plugin persistent mode feature failed to work"

MODIFY
test/test-llvm-lto.sh
test/test-llvm-lto.sh
@@ -16,15 +16,15 @@ test -e ../afl-clang-lto -a -e ../afl-llvm-lto-instrumentation.so && {
../afl-clang-lto -o test-instr.plain ../test-instr.c > /dev/null 2>&1
test -e test-instr.plain && {
$ECHO "$GREEN[+] llvm_mode LTO compilation succeeded"
- echo 0 | ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
- ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
+ echo 0 | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
+ AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
test -e test-instr.plain.0 -a -e test-instr.plain.1 && {
diff -q test-instr.plain.0 test-instr.plain.1 > /dev/null 2>&1 && {
$ECHO "$RED[!] llvm_mode LTO instrumentation should be different on different input but is not"
CODE=1
} || {
$ECHO "$GREEN[+] llvm_mode LTO instrumentation present and working correctly"
- TUPLES=`echo 0|../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
+ TUPLES=`echo 0|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
test "$TUPLES" -gt 2 -a "$TUPLES" -lt 7 && {
$ECHO "$GREEN[+] llvm_mode LTO run reported $TUPLES instrumented locations which is fine"
} || {
@@ -59,7 +59,7 @@ test -e ../afl-clang-lto -a -e ../afl-llvm-lto-instrumentation.so && {
rm -f test-compcov test.out instrumentlist.txt
../afl-clang-lto -o test-persistent ../utils/persistent_mode/persistent_demo.c > /dev/null 2>&1
test -e test-persistent && {
- echo foo | ../afl-showmap -m none -o /dev/null -q -r ./test-persistent && {
+ echo foo | AFL_QUIET=1 ../afl-showmap -m none -o /dev/null -q -r ./test-persistent && {
$ECHO "$GREEN[+] llvm_mode LTO persistent mode feature works correctly"
} || {
$ECHO "$RED[!] llvm_mode LTO persistent mode feature failed to work"

MODIFY
test/test-llvm.sh
test/test-llvm.sh
@@ -16,15 +16,15 @@ test -e ../afl-clang-fast -a -e ../split-switches-pass.so && {
AFL_HARDEN=1 ../afl-clang-fast -o test-compcov.harden test-compcov.c > /dev/null 2>&1
test -e test-instr.plain && {
$ECHO "$GREEN[+] llvm_mode compilation succeeded"
- echo 0 | ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
- ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
+ echo 0 | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
+ AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
test -e test-instr.plain.0 -a -e test-instr.plain.1 && {
diff test-instr.plain.0 test-instr.plain.1 > /dev/null 2>&1 && {
$ECHO "$RED[!] llvm_mode instrumentation should be different on different input but is not"
CODE=1
} || {
$ECHO "$GREEN[+] llvm_mode instrumentation present and working correctly"
- TUPLES=`echo 0|../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
+ TUPLES=`echo 0|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
test "$TUPLES" -gt 2 -a "$TUPLES" -lt 8 && {
$ECHO "$GREEN[+] llvm_mode run reported $TUPLES instrumented locations which is fine"
} || {
@@ -128,7 +128,7 @@ test -e ../afl-clang-fast -a -e ../split-switches-pass.so && {
test -e ../libLLVMInsTrim.so && {
AFL_LLVM_INSTRUMENT=CFG AFL_LLVM_INSTRIM_LOOPHEAD=1 ../afl-clang-fast -o test-instr.instrim ../test-instr.c > /dev/null 2>test.out
test -e test-instr.instrim && {
- TUPLES=`echo 0|../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.instrim 2>&1 | grep Captur | awk '{print$3}'`
+ TUPLES=`echo 0|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.instrim 2>&1 | grep Captur | awk '{print$3}'`
test "$TUPLES" -gt 1 -a "$TUPLES" -lt 5 && {
$ECHO "$GREEN[+] llvm_mode InsTrim reported $TUPLES instrumented locations which is fine"
} || {
@@ -216,7 +216,7 @@ test -e ../afl-clang-fast -a -e ../split-switches-pass.so && {
rm -rf errors test-cmplog in core.*
../afl-clang-fast -o test-persistent ../utils/persistent_mode/persistent_demo.c > /dev/null 2>&1
test -e test-persistent && {
- echo foo | ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -q -r ./test-persistent && {
+ echo foo | AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -q -r ./test-persistent && {
$ECHO "$GREEN[+] llvm_mode persistent mode feature works correctly"
} || {
$ECHO "$RED[!] llvm_mode persistent mode feature failed to work"

making AFL_MAP_SIZE obsolete