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# ##########################################################################
# LZ4 oss fuzzer - Makefile
#
# GPL v2 License
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# You can contact the author at :
# - LZ4 homepage : http://www.lz4.org
# - LZ4 source repository : https://github.com/lz4/lz4
# ##########################################################################
# compress_fuzzer : OSS Fuzz test tool
# decompress_fuzzer : OSS Fuzz test tool
# ##########################################################################
LZ4DIR := ../lib
LIB_FUZZING_ENGINE ?= standaloneengine.o
DEBUGLEVEL?= 1
DEBUGFLAGS = -g -DLZ4_DEBUG=$(DEBUGLEVEL)
LZ4_CFLAGS = $(CFLAGS) $(DEBUGFLAGS) $(MOREFLAGS)
LZ4_CXXFLAGS = $(CXXFLAGS) $(DEBUGFLAGS) $(MOREFLAGS)
LZ4_CPPFLAGS = $(CPPFLAGS) -I$(LZ4DIR) -DXXH_NAMESPACE=LZ4_ \
-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
FUZZERS := \
compress_fuzzer \
decompress_fuzzer \
round_trip_fuzzer \
round_trip_stream_fuzzer \
compress_hc_fuzzer \
round_trip_hc_fuzzer \
compress_frame_fuzzer \
round_trip_frame_fuzzer \
decompress_frame_fuzzer
.PHONY: all
all: $(FUZZERS)
# Include a rule to build the static library if calling this target
# directly.
$(LZ4DIR)/liblz4.a:
$(MAKE) -C $(LZ4DIR) CFLAGS="$(LZ4_CFLAGS)" liblz4.a
%.o: %.c
$(CC) -c $(LZ4_CFLAGS) $(LZ4_CPPFLAGS) $< -o $@
# Generic rule for generating fuzzers
%_fuzzer: %_fuzzer.o lz4_helpers.o fuzz_data_producer.o $(LZ4DIR)/liblz4.a
# Compile the standalone code just in case. The OSS-Fuzz code might
# override the LIB_FUZZING_ENGINE value to "-fsanitize=fuzzer"
$(CC) -c $(LZ4_CFLAGS) $(LZ4_CPPFLAGS) standaloneengine.c -o standaloneengine.o
# Now compile the actual fuzzer.
$(CXX) $(LZ4_CXXFLAGS) $(LZ4_CPPFLAGS) $(LDFLAGS) $(LIB_FUZZING_ENGINE) $^ -o $@$(EXT)
%_fuzzer_clean:
$(RM) $*_fuzzer $*_fuzzer.o standaloneengine.o
.PHONY: clean
clean: compress_fuzzer_clean decompress_fuzzer_clean \
compress_frame_fuzzer_clean compress_hc_fuzzer_clean \
decompress_frame_fuzzer_clean round_trip_frame_fuzzer_clean \
round_trip_fuzzer_clean round_trip_hc_fuzzer_clean round_trip_stream_fuzzer_clean
$(MAKE) -C $(LZ4DIR) clean
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