Makefile.fuzz

# To run xpath fuzzer:
#     make -f Makefile.fuzz fuzz-xpath DYLD_LIBRARY_PATH=/path/to/build/products
#     make -f Makefile.fuzz fuzz-xslt DYLD_LIBRARY_PATH=/path/to/build/products
# To merge a corpus:
#     make -f Makefile.fuzz merge-corpus DYLD_LIBRARY_PATH=/path/to/build/products
#
# To build dylib with fuzzing enabled (for use with libxslt fuzzers):
#     make -f Makefile.fuzz dylib

fuzz_dir = ./libxslt/tests/fuzz
top_srcdir = ./..

XCODEBUILD_FUZZER_FLAGS = ENABLE_LIBFUZZER=YES ENABLE_ADDRESS_SANITIZER=YES ENABLE_UNDEFINED_BEHAVIOR_SANITIZER=YES

.PHONY: $(fuzz_dir)/xpath $(fuzz_dir)/xslt

all: xpath xslt

xpath: $(fuzz_dir)/xpath
$(fuzz_dir)/xpath: $(fuzz_dir)/xpath.c $(fuzz_dir)/fuzz.c
	rm -f $(fuzz_dir)/fuzz-xpath $(fuzz_dir)/xpath
	xcodebuild -target fuzz-xpath -configuration Debug $(XCODEBUILD_FUZZER_FLAGS)
	mv -f $(fuzz_dir)/fuzz-xpath $(fuzz_dir)/xpath

xslt: $(fuzz_dir)/xslt
$(fuzz_dir)/xslt: $(fuzz_dir)/xslt.c $(fuzz_dir)/fuzz.c
	rm -f $(fuzz_dir)/fuzz-xslt $(fuzz_dir)/xslt
	xcodebuild -target fuzz-xslt -configuration Debug $(XCODEBUILD_FUZZER_FLAGS)
	mv -f $(fuzz_dir)/fuzz-xslt $(fuzz_dir)/xslt

.PHONY: corpus clean-corpus merge-corpus

clean-corpus:
	rm -rf $(fuzz_dir)/corpus/xpath
	rm -rf $(fuzz_dir)/corpus/xslt
 
merge-%-corpus: %
	cd $(fuzz_dir); \
	for D in $^; do \
	    echo "Merging corpus/$$D..." && \
	    mkdir corpus/$$D-merge && \
	    DYLD_LIBRARY_PATH=$(DYLD_LIBRARY_PATH) ./$$D corpus/$$D-merge corpus/$$D -merge=1 && \
	    mv corpus/$$D corpus/$$D-old && \
	    mv corpus/$$D-merge corpus/$$D && \
	    echo "Before/after merge: " && \
	    du -sh corpus/$$D-old corpus/$$D && \
	    rm -rf corpus/$$D-old; \
	done

merge-corpus: merge-xpath-corpus merge-xslt-corpus

# XPath fuzzer

fuzz-xpath: $(fuzz_dir)/xpath
	cd $(fuzz_dir); \
	mkdir -p corpus/xpath; \
	DYLD_LIBRARY_PATH=$(DYLD_LIBRARY_PATH) ./xpath \
	    -dict=xpath.dict \
	    -max_len=256 \
	    corpus/xpath seed/xpath

# XSLT fuzzer

fuzz-xslt: $(fuzz_dir)/xslt
	cd $(fuzz_dir); \
	mkdir -p corpus/xslt; \
	DYLD_LIBRARY_PATH=$(DYLD_LIBRARY_PATH) ./xslt \
	    -dict=xslt.dict \
	    corpus/xslt seed/xslt

dylib:
	xcodebuild -target All -configuration Debug $(XCODEBUILD_FUZZER_FLAGS)