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# ################################################################
# Copyright (c) 2016-present, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
# Optionally user defined flags
CFLAGS ?= -O3
CXXFLAGS ?= -O3
CPPFLAGS ?=
LDFLAGS ?=
ARFLAGS ?=
LIB_FUZZING_ENGINE ?= libregression.a
PYTHON ?= python
ifeq ($(shell uname), Darwin)
DOWNLOAD?=curl -L -o
else
DOWNLOAD?=wget -O
endif
CORPORA_URL_PREFIX:=https://github.com/facebook/zstd/releases/download/fuzz-corpora/
ZSTDDIR = ../../lib
PRGDIR = ../../programs
FUZZ_CPPFLAGS := -I$(ZSTDDIR) -I$(ZSTDDIR)/common -I$(ZSTDDIR)/compress \
-I$(ZSTDDIR)/dictBuilder -I$(ZSTDDIR)/deprecated -I$(PRGDIR) \
$(CPPFLAGS)
FUZZ_EXTRA_FLAGS := -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
-Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
-Wstrict-prototypes -Wundef -Wformat-security \
-Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
-Wredundant-decls \
-g -fno-omit-frame-pointer
FUZZ_CFLAGS := $(FUZZ_EXTRA_FLAGS) $(CFLAGS)
FUZZ_CXXFLAGS := $(FUZZ_EXTRA_FLAGS) -std=c++11 $(CXXFLAGS)
FUZZ_LDFLAGS := $(LDFLAGS)
FUZZ_ARFLAGS := $(ARFLAGS)
FUZZ_TARGET_FLAGS = $(FUZZ_CPPFLAGS) $(FUZZ_CXXFLAGS) $(FUZZ_LDFLAGS)
FUZZ_HEADERS := fuzz_helpers.h fuzz.h zstd_helpers.h
FUZZ_SRC := zstd_helpers.c
ZSTDCOMMON_SRC := $(ZSTDDIR)/common/*.c
ZSTDCOMP_SRC := $(ZSTDDIR)/compress/*.c
ZSTDDECOMP_SRC := $(ZSTDDIR)/decompress/*.c
FUZZ_SRC := \
$(FUZZ_SRC) \
$(ZSTDDECOMP_SRC) \
$(ZSTDCOMMON_SRC) \
$(ZSTDCOMP_SRC)
FUZZ_OBJ := $(patsubst %.c,%.o, $(wildcard $(FUZZ_SRC)))
.PHONY: default all clean cleanall
default: all
FUZZ_TARGETS := \
simple_round_trip \
stream_round_trip \
block_round_trip \
simple_decompress \
stream_decompress \
block_decompress
all: $(FUZZ_TARGETS)
%.o: %.c
$(CC) $(FUZZ_CPPFLAGS) $(FUZZ_CFLAGS) $^ -c -o $@
simple_round_trip: $(FUZZ_HEADERS) $(FUZZ_OBJ) simple_round_trip.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_OBJ) simple_round_trip.o $(LIB_FUZZING_ENGINE) -o $@
stream_round_trip: $(FUZZ_HEADERS) $(FUZZ_OBJ) stream_round_trip.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_OBJ) stream_round_trip.o $(LIB_FUZZING_ENGINE) -o $@
block_round_trip: $(FUZZ_HEADERS) $(FUZZ_OBJ) block_round_trip.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_OBJ) block_round_trip.o $(LIB_FUZZING_ENGINE) -o $@
simple_decompress: $(FUZZ_HEADERS) $(FUZZ_OBJ) simple_decompress.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_OBJ) simple_decompress.o $(LIB_FUZZING_ENGINE) -o $@
stream_decompress: $(FUZZ_HEADERS) $(FUZZ_OBJ) stream_decompress.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_OBJ) stream_decompress.o $(LIB_FUZZING_ENGINE) -o $@
block_decompress: $(FUZZ_HEADERS) $(FUZZ_OBJ) block_decompress.o
$(CXX) $(FUZZ_TARGET_FLAGS) $(FUZZ_OBJ) block_decompress.o $(LIB_FUZZING_ENGINE) -o $@
libregression.a: $(FUZZ_HEADERS) $(PRGDIR)/util.h regression_driver.o
$(AR) $(FUZZ_ARFLAGS) $@ regression_driver.o
# Install libfuzzer (not usable for MSAN testing)
# Provided for convienence. To use this library run make libFuzzer and
# set LDFLAGS=-L.
.PHONY: libFuzzer
libFuzzer:
@$(RM) -rf Fuzzer
@git clone https://chromium.googlesource.com/chromium/llvm-project/llvm/lib/Fuzzer
@cd Fuzzer && ./build.sh
corpora/%_seed_corpus.zip:
@mkdir -p corpora
$(DOWNLOAD) $@ $(CORPORA_URL_PREFIX)$*_seed_corpus.zip
corpora/%: corpora/%_seed_corpus.zip
unzip -q $^ -d $@
.PHONY: corpora
corpora: $(patsubst %,corpora/%,$(FUZZ_TARGETS))
regressiontest: corpora
CC="$(CC)" CXX="$(CXX)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" LDFLAGS="$(LDFLAGS)" $(PYTHON) ./fuzz.py build all
$(PYTHON) ./fuzz.py regression all
clean:
@$(MAKE) -C $(ZSTDDIR) clean
@$(RM) *.a *.o
@$(RM) simple_round_trip stream_round_trip simple_decompress \
stream_decompress block_decompress block_round_trip
cleanall:
@$(RM) -r Fuzzer
@$(RM) -r corpora
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