diff options
Diffstat (limited to 'utils/aflpp_driver')
| -rw-r--r-- | utils/aflpp_driver/GNUmakefile | 14 | ||||
| -rw-r--r-- | utils/aflpp_driver/README.md | 7 | ||||
| -rw-r--r-- | utils/aflpp_driver/aflpp_qemu_driver.c | 4 |
3 files changed, 18 insertions, 7 deletions
diff --git a/utils/aflpp_driver/GNUmakefile b/utils/aflpp_driver/GNUmakefile index ad99b893..c282a9f3 100644 --- a/utils/aflpp_driver/GNUmakefile +++ b/utils/aflpp_driver/GNUmakefile @@ -15,28 +15,28 @@ aflpp_driver.o: aflpp_driver.c -$(LLVM_BINDIR)clang -I. -I../../include $(CFLAGS) -c aflpp_driver.c libAFLDriver.a: aflpp_driver.o - ar ru libAFLDriver.a aflpp_driver.o - cp -vf libAFLDriver.a ../../ + @ar rc libAFLDriver.a aflpp_driver.o + @cp -vf libAFLDriver.a ../../ debug: $(LLVM_BINDIR)clang -Wno-deprecated -I../../include $(CFLAGS) -D_DEBUG=\"1\" -c -o afl-performance.o ../../src/afl-performance.c $(LLVM_BINDIR)clang -I../../include -D_DEBUG=\"1\" -g -funroll-loops -c aflpp_driver.c #$(LLVM_BINDIR)clang -S -emit-llvm -Wno-deprecated -I../../include $(CFLAGS) -D_DEBUG=\"1\" -c -o afl-performance.ll ../../src/afl-performance.c #$(LLVM_BINDIR)clang -S -emit-llvm -I../../include -D_DEBUG=\"1\" -g -funroll-loops -c aflpp_driver.c - ar ru libAFLDriver.a afl-performance.o aflpp_driver.o + ar rc libAFLDriver.a afl-performance.o aflpp_driver.o 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_qemu_driver.c b/utils/aflpp_driver/aflpp_qemu_driver.c index 79de5af6..99a4c9a8 100644 --- a/utils/aflpp_driver/aflpp_qemu_driver.c +++ b/utils/aflpp_driver/aflpp_qemu_driver.c @@ -1,3 +1,4 @@ +#include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <unistd.h> @@ -27,6 +28,9 @@ int main(int argc, char **argv) { } else { + fprintf(stderr, + "Using shared-memory testcases. To read via stdin, set " + "AFL_QEMU_DRIVER_NO_HOOK=1.\n"); uint8_t dummy_input[1024000] = {0}; LLVMFuzzerTestOneInput(dummy_input, 1); |