1CC ?= clang
2CXX ?= clang++
3
4# By default, use our own standalone_fuzz_target_runner.
5# This runner does no fuzzing, but simply executes the inputs
6# provided via parameters.
7# Run e.g. "make all LIB_FUZZING_ENGINE=/path/to/libFuzzer.a"
8# to link the fuzzer(s) against a real fuzzing engine.
9#
10# OSS-Fuzz will define its own value for LIB_FUZZING_ENGINE.
11LIB_FUZZING_ENGINE ?= standalone_fuzz_target_runner.o
12
13# Default to Python 3.
14#
15# Windows ships Python 3 as `python.exe`, which may not be on PATH.  py.exe is.
16ifeq ($(OS),Windows_NT)
17PYTHON?=py -3
18else
19PYTHON?=python3
20endif
21
22PYTHON_CONFIG ?= $$OUT/sanpy/bin/python-config
23PYTHON_CONFIG_FLAGS ?= --ldflags --embed
24
25CXXFLAGS += -Wno-deprecated-register
26
27all: standalone_fuzz_target_runner.o oss-fuzz
28
29standalone_fuzz_target_runner.o: standalone_fuzz_target_runner.cc
30
31$$OUT/%_fuzzer_seed_corpus.zip: %_corpus.py
32	$(PYTHON) $< $@
33
34pyutil.o: pyutil.cc pyutil.h
35	$(CXX) $(CXXFLAGS) -g -O1 \
36	  `$(PYTHON_CONFIG) --cflags` \
37	  -I../../mercurial -c -o pyutil.o pyutil.cc
38
39bdiff-oss-fuzz.o: ../../mercurial/bdiff.c
40	$(CC) $(CFLAGS) -c -o bdiff-oss-fuzz.o ../../mercurial/bdiff.c
41
42bdiff_fuzzer: bdiff.cc bdiff-oss-fuzz.o
43	$(CXX) $(CXXFLAGS) -std=c++17 -I../../mercurial bdiff.cc \
44	  bdiff-oss-fuzz.o $(LIB_FUZZING_ENGINE) -o \
45	  $$OUT/bdiff_fuzzer
46
47mpatch.o: ../../mercurial/mpatch.c
48	$(CC) -g -O1 -fsanitize=fuzzer-no-link,address -c -o mpatch.o \
49	  ../../mercurial/mpatch.c
50
51mpatch-oss-fuzz.o: ../../mercurial/mpatch.c
52	$(CC) $(CFLAGS) -c -o mpatch-oss-fuzz.o ../../mercurial/mpatch.c
53
54mpatch_fuzzer: mpatch.cc mpatch-oss-fuzz.o $$OUT/mpatch_fuzzer_seed_corpus.zip
55	$(CXX) $(CXXFLAGS) -std=c++17 -I../../mercurial mpatch.cc \
56	  mpatch-oss-fuzz.o $(LIB_FUZZING_ENGINE) -o \
57	  $$OUT/mpatch_fuzzer
58
59fuzz-x%.o: ../../mercurial/thirdparty/xdiff/x%.c ../../mercurial/thirdparty/xdiff/*.h
60	$(CC) $(CFLAGS) -c \
61	  -o $@ \
62	  $<
63
64xdiff_fuzzer: xdiff.cc fuzz-xdiffi.o fuzz-xprepare.o fuzz-xutils.o
65	$(CXX) $(CXXFLAGS) -std=c++17 -I../../mercurial xdiff.cc \
66	  fuzz-xdiffi.o fuzz-xprepare.o fuzz-xutils.o \
67	  $(LIB_FUZZING_ENGINE) -o $$OUT/xdiff_fuzzer
68
69parsers-%.o: ../../mercurial/cext/%.c
70	$(CC) -I../../mercurial `$(PYTHON_CONFIG) --cflags` $(CFLAGS) -c \
71	  -o $@ $<
72
73PARSERS_OBJS=parsers-manifest.o parsers-charencode.o parsers-parsers.o parsers-dirs.o parsers-pathencode.o parsers-revlog.o
74
75dirs_fuzzer: dirs.cc pyutil.o $(PARSERS_OBJS) $$OUT/dirs_fuzzer_seed_corpus.zip
76	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
77	  -Wno-register -Wno-macro-redefined \
78	  -I../../mercurial dirs.cc \
79	  pyutil.o $(PARSERS_OBJS) \
80	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
81	  -o $$OUT/dirs_fuzzer
82
83fncache_fuzzer: fncache.cc
84	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
85	  -Wno-register -Wno-macro-redefined \
86	  -I../../mercurial fncache.cc \
87	  pyutil.o $(PARSERS_OBJS) \
88	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
89	  -o $$OUT/fncache_fuzzer
90
91jsonescapeu8fast_fuzzer: jsonescapeu8fast.cc pyutil.o $(PARSERS_OBJS)
92	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
93	  -Wno-register -Wno-macro-redefined \
94	  -I../../mercurial jsonescapeu8fast.cc \
95	  pyutil.o $(PARSERS_OBJS) \
96	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
97	  -o $$OUT/jsonescapeu8fast_fuzzer
98
99manifest_fuzzer: manifest.cc pyutil.o $(PARSERS_OBJS) $$OUT/manifest_fuzzer_seed_corpus.zip
100	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
101	  -Wno-register -Wno-macro-redefined \
102	  -I../../mercurial manifest.cc \
103	  pyutil.o $(PARSERS_OBJS) \
104	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
105	  -o $$OUT/manifest_fuzzer
106
107revlog_fuzzer: revlog.cc pyutil.o $(PARSERS_OBJS) $$OUT/revlog_fuzzer_seed_corpus.zip
108	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
109	  -Wno-register -Wno-macro-redefined \
110	  -I../../mercurial revlog.cc \
111	  pyutil.o $(PARSERS_OBJS) \
112	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
113	  -o $$OUT/revlog_fuzzer
114
115dirstate_fuzzer: dirstate.cc pyutil.o $(PARSERS_OBJS) $$OUT/dirstate_fuzzer_seed_corpus.zip
116	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
117	  -Wno-register -Wno-macro-redefined \
118	  -I../../mercurial dirstate.cc \
119	  pyutil.o $(PARSERS_OBJS) \
120	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
121	  -o $$OUT/dirstate_fuzzer
122
123fm1readmarkers_fuzzer: fm1readmarkers.cc pyutil.o $(PARSERS_OBJS) $$OUT/fm1readmarkers_fuzzer_seed_corpus.zip
124	$(CXX) $(CXXFLAGS) `$(PYTHON_CONFIG) --cflags` \
125	  -Wno-register -Wno-macro-redefined \
126	  -I../../mercurial fm1readmarkers.cc \
127	  pyutil.o $(PARSERS_OBJS) \
128	  $(LIB_FUZZING_ENGINE) `$(PYTHON_CONFIG) $(PYTHON_CONFIG_FLAGS)` \
129	  -o $$OUT/fm1readmarkers_fuzzer
130
131clean:
132	$(RM) *.o *_fuzzer \
133	  bdiff \
134	  mpatch \
135	  xdiff
136
137oss-fuzz: bdiff_fuzzer mpatch_fuzzer xdiff_fuzzer dirs_fuzzer fncache_fuzzer jsonescapeu8fast_fuzzer manifest_fuzzer revlog_fuzzer dirstate_fuzzer fm1readmarkers_fuzzer
138
139.PHONY: all clean oss-fuzz
140