diff options
Diffstat (limited to 'utils/aflpp_driver')
| -rw-r--r-- | utils/aflpp_driver/GNUmakefile | 8 | ||||
| -rw-r--r-- | utils/aflpp_driver/README.md | 7 | ||||
| -rw-r--r-- | utils/aflpp_driver/aflpp_driver.c | 32 |
3 files changed, 28 insertions, 19 deletions
diff --git a/utils/aflpp_driver/GNUmakefile b/utils/aflpp_driver/GNUmakefile index a6abe08c..c282a9f3 100644 --- a/utils/aflpp_driver/GNUmakefile +++ b/utils/aflpp_driver/GNUmakefile @@ -29,14 +29,14 @@ aflpp_qemu_driver.o: aflpp_qemu_driver.c -$(LLVM_BINDIR)clang $(CFLAGS) -O0 -funroll-loops -c aflpp_qemu_driver.c libAFLQemuDriver.a: aflpp_qemu_driver.o - -ar ru libAFLQemuDriver.a aflpp_qemu_driver.o - -cp -vf libAFLQemuDriver.a ../../ + @-ar rc libAFLQemuDriver.a aflpp_qemu_driver.o + @-cp -vf libAFLQemuDriver.a ../../ aflpp_qemu_driver_hook.so: aflpp_qemu_driver_hook.o - -test -e aflpp_qemu_driver_hook.o && $(LLVM_BINDIR)clang -shared aflpp_qemu_driver_hook.o -o aflpp_qemu_driver_hook.so || echo "Note: Optional aflpp_qemu_driver_hook.so not built." + @-test -e aflpp_qemu_driver_hook.o && $(LLVM_BINDIR)clang -shared aflpp_qemu_driver_hook.o -o aflpp_qemu_driver_hook.so || echo "Note: Optional aflpp_qemu_driver_hook.so not built." aflpp_qemu_driver_hook.o: aflpp_qemu_driver_hook.c - -test -e ../../qemu_mode/qemuafl/qemuafl/api.h && $(LLVM_BINDIR)clang $(CFLAGS) -funroll-loops -c aflpp_qemu_driver_hook.c || echo "Note: Optional aflpp_qemu_driver_hook.o not built." + @-test -e ../../qemu_mode/qemuafl/qemuafl/api.h && $(LLVM_BINDIR)clang $(CFLAGS) -funroll-loops -c aflpp_qemu_driver_hook.c || echo "Note: Optional aflpp_qemu_driver_hook.o not built." test: debug #clang -S -emit-llvm -D_DEBUG=\"1\" -I../../include -Wl,--allow-multiple-definition -funroll-loops -o aflpp_driver_test.ll aflpp_driver_test.c diff --git a/utils/aflpp_driver/README.md b/utils/aflpp_driver/README.md index f03c2fe3..4ca59776 100644 --- a/utils/aflpp_driver/README.md +++ b/utils/aflpp_driver/README.md @@ -22,6 +22,8 @@ or `@@` as command line parameters. ## aflpp_qemu_driver +Note that you can use the driver too for frida_mode (`-O`). + aflpp_qemu_driver is used for libfuzzer `LLVMFuzzerTestOneInput()` targets that are to be fuzzed in qemu_mode. So we compile them with clang/clang++, without -fsantize=fuzzer or afl-clang-fast, and link in libAFLQemuDriver.a: @@ -34,3 +36,8 @@ Then just do (where the name of the binary is `fuzz`): AFL_QEMU_PERSISTENT_ADDR=0x$(nm fuzz | grep "T LLVMFuzzerTestOneInput" | awk '{print $1}') AFL_QEMU_PERSISTENT_HOOK=/path/to/aflpp_qemu_driver_hook.so afl-fuzz -Q ... -- ./fuzz` ``` + +if you use afl-cmin or `afl-showmap -C` with the aflpp_qemu_driver you need to +set the set same AFL_QEMU_... (or AFL_FRIDA_...) environment variables. +If you want to use afl-showmap (without -C) or afl-cmin.bash then you may not +set these environment variables and rather set `AFL_QEMU_DRIVER_NO_HOOK=1`. diff --git a/utils/aflpp_driver/aflpp_driver.c b/utils/aflpp_driver/aflpp_driver.c index c094c425..ff42f3b9 100644 --- a/utils/aflpp_driver/aflpp_driver.c +++ b/utils/aflpp_driver/aflpp_driver.c @@ -204,21 +204,23 @@ static int ExecuteFilesOnyByOne(int argc, char **argv) { int main(int argc, char **argv) { - printf( - "============================== INFO ================================\n" - "This binary is built for afl++.\n" - "To use with afl-cmin or afl-cmin.bash pass '-' as single command line " - "option\n" - "To run the target function on individual input(s) execute this:\n" - " %s INPUT_FILE1 [INPUT_FILE2 ... ]\n" - "To fuzz with afl-fuzz execute this:\n" - " afl-fuzz [afl-flags] -- %s [-N]\n" - "afl-fuzz will run N iterations before re-spawning the process (default: " - "INT_MAX)\n" - "For stdin input processing, pass '-' as single command line option.\n" - "For file input processing, pass '@@' as single command line option.\n" - "===================================================================\n", - argv[0], argv[0]); + if (argc < 2 || strncmp(argv[1], "-h", 2) == 0) + printf( + "============================== INFO ================================\n" + "This binary is built for afl++.\n" + "To use with afl-cmin or afl-cmin.bash pass '-' as single command line " + "option\n" + "To run the target function on individual input(s) execute this:\n" + " %s INPUT_FILE1 [INPUT_FILE2 ... ]\n" + "To fuzz with afl-fuzz execute this:\n" + " afl-fuzz [afl-flags] -- %s [-N]\n" + "afl-fuzz will run N iterations before re-spawning the process " + "(default: " + "INT_MAX)\n" + "For stdin input processing, pass '-' as single command line option.\n" + "For file input processing, pass '@@' as single command line option.\n" + "===================================================================\n", + argv[0], argv[0]); if (getenv("AFL_GDB")) { |