view contrib/fuzz/Makefile @ 46780:6266d19556ad

node: introduce nodeconstants class

In preparing for moving from SHA1 hashes to a modern hash function,
place nullid and other constant magic vules in a class. Provide the
active set of constants in the repository and push it down. Provide
nullid directly in strategic places like the repository as it is
accessed very often. This changeset introduces the API change, but not
the mechanical replacement of the node.py attributes itself.

Differential Revision: https://phab.mercurial-scm.org/D9750

CC ?= clang
CXX ?= clang++

# By default, use our own standalone_fuzz_target_runner.
# This runner does no fuzzing, but simply executes the inputs
# provided via parameters.
# Run e.g. "make all LIB_FUZZING_ENGINE=/path/to/libFuzzer.a"
# to link the fuzzer(s) against a real fuzzing engine.
#
# OSS-Fuzz will define its own value for LIB_FUZZING_ENGINE.
LIB_FUZZING_ENGINE ?= standalone_fuzz_target_runner.o

PYTHON_CONFIG ?= $$OUT/sanpy/bin/python-config
PYTHON_CONFIG_FLAGS ?= --ldflags --embed

CXXFLAGS += -Wno-deprecated-register

all: standalone_fuzz_target_runner.o oss-fuzz

standalone_fuzz_target_runner.o: standalone_fuzz_target_runner.cc

$$OUT/%_fuzzer_seed_corpus.zip: %_corpus.py
	python $< $@

pyutil.o: pyutil.cc pyutil.h
	$(CXX) $(CXXFLAGS) -g -O1 \
	  `$(PYTHON_CONFIG) --cflags` \
	  -I../../mercurial -c -o pyutil.o pyutil.cc

bdiff-oss-fuzz.o: ../../mercurial/bdiff.c
	$(CC) $(CFLAGS) -c -o bdiff-oss-fuzz.o ../../mercurial/bdiff.c

bdiff_fuzzer: bdiff.cc bdiff-oss-fuzz.o
	$(CXX) $(CXXFLAGS) -std=c++17 -I../../mercurial bdiff.cc \
	  bdiff-oss-fuzz.o $(LIB_FUZZING_ENGINE) -o \
	  $$OUT/bdiff_fuzzer

mpatch.o: ../../mercurial/mpatch.c
	$(CC) -g -O1 -fsanitize=fuzzer-no-link,address -c -o mpatch.o \
	  ../../mercurial/mpatch.c

mpatch-oss-fuzz.o: ../../mercurial/mpatch.c
	$(CC) $(CFLAGS) -c -o mpatch-oss-fuzz.o ../../mercurial/mpatch.c

mpatch_fuzzer: mpatch.cc mpatch-oss-fuzz.o $$OUT/mpatch_fuzzer_seed_corpus.zip
	$(CXX) $(CXXFLAGS) -std=c++17 -I../../mercurial mpatch.cc \
	  mpatch-oss-fuzz.o $(LIB_FUZZING_ENGINE) -o \
	  $$OUT/mpatch_fuzzer

fuzz-x%.o: ../../mercurial/thirdparty/xdiff/x%.c ../../mercurial/thirdparty/xdiff/*.h
	$(CC) $(CFLAGS) -c \
	  -o $@ \
	  $<

xdiff_fuzzer: xdiff.cc fuzz-xdiffi.o fuzz-xprepare.o fuzz-xutils.o 
	$(CXX) $(CXXFLAGS) -std=c++17 -I../../mercurial xdiff.cc \
	  fuzz-xdiffi.o fuzz-xprepare.o fuzz-xutils.o \
	  $(LIB_FUZZING_ENGINE) -o $$OUT/xdiff_fuzzer

parsers-%.o: ../../mercurial/cext/%.c
	$(CC) -I../../mercurial `$(PYTHON_CONFIG) --cflags` $(CFLAGS) -c \
	  -o $@ $<

PARSERS_OBJS=parsers-manifest.o parsers-charencode.o parsers-parsers.o parsers-dirs.o parsers-pathencode.o parsers-revlog.o

dirs_fuzzer: dirs.cc pyutil.o $(PARSERS_OBJS) $$OUT/dirs_fuzzer_seed_corpus.zip
	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
	  -Wno-register -Wno-macro-redefined \
	  -I../../mercurial dirs.cc \
	  pyutil.o $(PARSERS_OBJS) \
	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
	  -o $$OUT/dirs_fuzzer

fncache_fuzzer: fncache.cc 
	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
	  -Wno-register -Wno-macro-redefined \
	  -I../../mercurial fncache.cc \
	  pyutil.o $(PARSERS_OBJS) \
	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
	  -o $$OUT/fncache_fuzzer

jsonescapeu8fast_fuzzer: jsonescapeu8fast.cc pyutil.o $(PARSERS_OBJS)
	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
	  -Wno-register -Wno-macro-redefined \
	  -I../../mercurial jsonescapeu8fast.cc \
	  pyutil.o $(PARSERS_OBJS) \
	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
	  -o $$OUT/jsonescapeu8fast_fuzzer

manifest_fuzzer: manifest.cc pyutil.o $(PARSERS_OBJS) $$OUT/manifest_fuzzer_seed_corpus.zip
	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
	  -Wno-register -Wno-macro-redefined \
	  -I../../mercurial manifest.cc \
	  pyutil.o $(PARSERS_OBJS) \
	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
	  -o $$OUT/manifest_fuzzer

revlog_fuzzer: revlog.cc pyutil.o $(PARSERS_OBJS) $$OUT/revlog_fuzzer_seed_corpus.zip
	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
	  -Wno-register -Wno-macro-redefined \
	  -I../../mercurial revlog.cc \
	  pyutil.o $(PARSERS_OBJS) \
	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
	  -o $$OUT/revlog_fuzzer

dirstate_fuzzer: dirstate.cc pyutil.o $(PARSERS_OBJS) $$OUT/dirstate_fuzzer_seed_corpus.zip
	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
	  -Wno-register -Wno-macro-redefined \
	  -I../../mercurial dirstate.cc \
	  pyutil.o $(PARSERS_OBJS) \
	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
	  -o $$OUT/dirstate_fuzzer

fm1readmarkers_fuzzer: fm1readmarkers.cc pyutil.o $(PARSERS_OBJS) $$OUT/fm1readmarkers_fuzzer_seed_corpus.zip
	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
	  -Wno-register -Wno-macro-redefined \
	  -I../../mercurial fm1readmarkers.cc \
	  pyutil.o $(PARSERS_OBJS) \
	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
	  -o $$OUT/fm1readmarkers_fuzzer

clean:
	$(RM) *.o *_fuzzer \
	  bdiff \
	  mpatch \
	  xdiff

oss-fuzz: bdiff_fuzzer mpatch_fuzzer xdiff_fuzzer dirs_fuzzer fncache_fuzzer jsonescapeu8fast_fuzzer manifest_fuzzer revlog_fuzzer dirstate_fuzzer fm1readmarkers_fuzzer

.PHONY: all clean oss-fuzz