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1# Copyright 2009 The RE2 Authors.  All Rights Reserved.
2# Use of this source code is governed by a BSD-style
3# license that can be found in the LICENSE file.
4
5# Build against Abseil.
6ABSL_DEPS=\
7	absl_absl_check\
8	absl_absl_log\
9	absl_base\
10	absl_core_headers\
11	absl_fixed_array\
12	absl_flags\
13	absl_flat_hash_map\
14	absl_flat_hash_set\
15	absl_hash\
16	absl_inlined_vector\
17	absl_optional\
18	absl_span\
19	absl_str_format\
20	absl_strings\
21	absl_synchronization\
22
23PKG_CONFIG?=pkg-config
24CCABSL=$(shell $(PKG_CONFIG) $(ABSL_DEPS) --cflags)
25# GCC barfs on `-Wl` whereas Clang doesn't mind, but it's unclear what
26# causes it to manifest on Ubuntu 22.04 LTS, so filter it out for now.
27# Similar is needed for `static-testinstall` and `shared-testinstall`.
28LDABSL=$(shell $(PKG_CONFIG) $(ABSL_DEPS) --libs | sed -e 's/-Wl / /g')
29
30# To build against ICU for full Unicode properties support,
31# uncomment the next two lines:
32# CCICU=$(shell $(PKG_CONFIG) icu-uc --cflags) -DRE2_USE_ICU
33# LDICU=$(shell $(PKG_CONFIG) icu-uc --libs)
34
35# Build against GoogleTest and Benchmark for... testing and benchmarking.
36# Capture only the `-L` flags for now; we will pass the `-l` flags later.
37CCGTEST=$(shell $(PKG_CONFIG) gtest gtest_main --cflags)
38LDGTEST=$(shell $(PKG_CONFIG) gtest gtest_main --libs-only-L)
39CCBENCHMARK=$(shell $(PKG_CONFIG) benchmark --cflags)
40LDBENCHMARK=$(shell $(PKG_CONFIG) benchmark --libs-only-L)
41
42# To build against PCRE for testing and benchmarking,
43# uncomment the next two lines:
44# CCPCRE=-I/usr/local/include -DUSEPCRE
45# LDPCRE=-L/usr/local/lib -lpcre
46
47CXX?=g++
48# can override
49CXXFLAGS?=-O3 -g
50LDFLAGS?=
51# required
52RE2_CXXFLAGS?=-pthread -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -I. $(CCABSL) $(CCICU) $(CCGTEST) $(CCBENCHMARK) $(CCPCRE)
53RE2_LDFLAGS?=-pthread $(LDABSL) $(LDICU) $(LDGTEST) $(LDBENCHMARK) $(LDPCRE)
54AR?=ar
55ARFLAGS?=rsc
56NM?=nm
57NMFLAGS?=-p
58
59# Variables mandated by GNU, the arbiter of all good taste on the internet.
60# http://www.gnu.org/prep/standards/standards.html
61prefix=/usr/local
62exec_prefix=$(prefix)
63includedir=$(prefix)/include
64libdir=$(exec_prefix)/lib
65INSTALL=install
66INSTALL_DATA=$(INSTALL) -m 644
67
68# Work around the weirdness of sed(1) on Darwin. :/
69ifeq ($(shell uname),Darwin)
70SED_INPLACE=sed -i ''
71else ifeq ($(shell uname),SunOS)
72SED_INPLACE=sed -i
73else
74SED_INPLACE=sed -i
75endif
76
77# The pkg-config Requires: field.
78REQUIRES=$(ABSL_DEPS)
79ifdef LDICU
80REQUIRES+=icu-uc
81endif
82
83# ABI version
84# http://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html
85SONAME=11
86
87# To rebuild the Tables generated by Perl and Python scripts (requires Internet
88# access for Unicode data), uncomment the following line:
89# REBUILD_TABLES=1
90
91# The SunOS linker does not support wildcards. :(
92ifeq ($(shell uname),Darwin)
93SOEXT=dylib
94SOEXTVER=$(SONAME).$(SOEXT)
95SOEXTVER00=$(SONAME).0.0.$(SOEXT)
96MAKE_SHARED_LIBRARY=$(CXX) -dynamiclib -Wl,-compatibility_version,$(SONAME),-current_version,$(SONAME).0.0,-install_name,$(libdir)/libre2.$(SOEXTVER),-exported_symbols_list,libre2.symbols.darwin
97else ifeq ($(shell uname),SunOS)
98SOEXT=so
99SOEXTVER=$(SOEXT).$(SONAME)
100SOEXTVER00=$(SOEXT).$(SONAME).0.0
101MAKE_SHARED_LIBRARY=$(CXX) -shared -Wl,-soname,libre2.$(SOEXTVER)
102else
103SOEXT=so
104SOEXTVER=$(SOEXT).$(SONAME)
105SOEXTVER00=$(SOEXT).$(SONAME).0.0
106MAKE_SHARED_LIBRARY=$(CXX) -shared -Wl,-soname,libre2.$(SOEXTVER),--version-script,libre2.symbols
107endif
108
109.PHONY: all
110all: obj/libre2.a obj/so/libre2.$(SOEXT)
111
112INSTALL_HFILES=\
113	re2/filtered_re2.h\
114	re2/re2.h\
115	re2/set.h\
116	re2/stringpiece.h\
117
118HFILES=\
119	util/malloc_counter.h\
120	util/pcre.h\
121	util/strutil.h\
122	util/utf.h\
123	re2/bitmap256.h\
124	re2/filtered_re2.h\
125	re2/pod_array.h\
126	re2/prefilter.h\
127	re2/prefilter_tree.h\
128	re2/prog.h\
129	re2/re2.h\
130	re2/regexp.h\
131	re2/set.h\
132	re2/sparse_array.h\
133	re2/sparse_set.h\
134	re2/stringpiece.h\
135	re2/testing/exhaustive_tester.h\
136	re2/testing/regexp_generator.h\
137	re2/testing/string_generator.h\
138	re2/testing/tester.h\
139	re2/unicode_casefold.h\
140	re2/unicode_groups.h\
141	re2/walker-inl.h\
142
143OFILES=\
144	obj/util/rune.o\
145	obj/util/strutil.o\
146	obj/re2/bitmap256.o\
147	obj/re2/bitstate.o\
148	obj/re2/compile.o\
149	obj/re2/dfa.o\
150	obj/re2/filtered_re2.o\
151	obj/re2/mimics_pcre.o\
152	obj/re2/nfa.o\
153	obj/re2/onepass.o\
154	obj/re2/parse.o\
155	obj/re2/perl_groups.o\
156	obj/re2/prefilter.o\
157	obj/re2/prefilter_tree.o\
158	obj/re2/prog.o\
159	obj/re2/re2.o\
160	obj/re2/regexp.o\
161	obj/re2/set.o\
162	obj/re2/simplify.o\
163	obj/re2/tostring.o\
164	obj/re2/unicode_casefold.o\
165	obj/re2/unicode_groups.o\
166
167TESTOFILES=\
168	obj/util/pcre.o\
169	obj/re2/testing/backtrack.o\
170	obj/re2/testing/dump.o\
171	obj/re2/testing/exhaustive_tester.o\
172	obj/re2/testing/null_walker.o\
173	obj/re2/testing/regexp_generator.o\
174	obj/re2/testing/string_generator.o\
175	obj/re2/testing/tester.o\
176
177TESTS=\
178	obj/test/charclass_test\
179	obj/test/compile_test\
180	obj/test/filtered_re2_test\
181	obj/test/mimics_pcre_test\
182	obj/test/parse_test\
183	obj/test/possible_match_test\
184	obj/test/re2_test\
185	obj/test/re2_arg_test\
186	obj/test/regexp_test\
187	obj/test/required_prefix_test\
188	obj/test/search_test\
189	obj/test/set_test\
190	obj/test/simplify_test\
191	obj/test/string_generator_test\
192
193BIGTESTS=\
194	obj/test/dfa_test\
195	obj/test/exhaustive1_test\
196	obj/test/exhaustive2_test\
197	obj/test/exhaustive3_test\
198	obj/test/exhaustive_test\
199	obj/test/random_test\
200
201SOFILES=$(patsubst obj/%,obj/so/%,$(OFILES))
202# We use TESTOFILES for testing the shared lib, only it is built differently.
203STESTS=$(patsubst obj/%,obj/so/%,$(TESTS))
204SBIGTESTS=$(patsubst obj/%,obj/so/%,$(BIGTESTS))
205
206DOFILES=$(patsubst obj/%,obj/dbg/%,$(OFILES))
207DTESTOFILES=$(patsubst obj/%,obj/dbg/%,$(TESTOFILES))
208DTESTS=$(patsubst obj/%,obj/dbg/%,$(TESTS))
209DBIGTESTS=$(patsubst obj/%,obj/dbg/%,$(BIGTESTS))
210
211.PRECIOUS: obj/%.o
212obj/%.o: %.cc $(HFILES)
213	@mkdir -p $$(dirname $@)
214	$(CXX) -c -o $@ $(CPPFLAGS) $(RE2_CXXFLAGS) $(CXXFLAGS) -DNDEBUG $*.cc
215
216.PRECIOUS: obj/dbg/%.o
217obj/dbg/%.o: %.cc $(HFILES)
218	@mkdir -p $$(dirname $@)
219	$(CXX) -c -o $@ $(CPPFLAGS) $(RE2_CXXFLAGS) $(CXXFLAGS) $*.cc
220
221.PRECIOUS: obj/so/%.o
222obj/so/%.o: %.cc $(HFILES)
223	@mkdir -p $$(dirname $@)
224	$(CXX) -c -o $@ -fPIC $(CPPFLAGS) $(RE2_CXXFLAGS) $(CXXFLAGS) -DNDEBUG $*.cc
225
226.PRECIOUS: obj/libre2.a
227obj/libre2.a: $(OFILES)
228	@mkdir -p obj
229	$(AR) $(ARFLAGS) obj/libre2.a $(OFILES)
230
231.PRECIOUS: obj/dbg/libre2.a
232obj/dbg/libre2.a: $(DOFILES)
233	@mkdir -p obj/dbg
234	$(AR) $(ARFLAGS) obj/dbg/libre2.a $(DOFILES)
235
236.PRECIOUS: obj/so/libre2.$(SOEXT)
237obj/so/libre2.$(SOEXT): $(SOFILES) libre2.symbols libre2.symbols.darwin
238	@mkdir -p obj/so
239	$(MAKE_SHARED_LIBRARY) -o obj/so/libre2.$(SOEXTVER) $(SOFILES) $(RE2_LDFLAGS) $(LDFLAGS)
240	ln -sf libre2.$(SOEXTVER) $@
241
242.PRECIOUS: obj/dbg/test/%
243obj/dbg/test/%: obj/dbg/libre2.a obj/dbg/re2/testing/%.o $(DTESTOFILES)
244	@mkdir -p obj/dbg/test
245	$(CXX) -o $@ obj/dbg/re2/testing/$*.o $(DTESTOFILES) obj/dbg/libre2.a $(RE2_LDFLAGS) $(LDFLAGS) -lgtest -lgtest_main
246
247.PRECIOUS: obj/test/%
248obj/test/%: obj/libre2.a obj/re2/testing/%.o $(TESTOFILES)
249	@mkdir -p obj/test
250	$(CXX) -o $@ obj/re2/testing/$*.o $(TESTOFILES) obj/libre2.a $(RE2_LDFLAGS) $(LDFLAGS) -lgtest -lgtest_main
251
252# Test the shared lib, falling back to the static lib for private symbols
253.PRECIOUS: obj/so/test/%
254obj/so/test/%: obj/so/libre2.$(SOEXT) obj/libre2.a obj/re2/testing/%.o $(TESTOFILES)
255	@mkdir -p obj/so/test
256	$(CXX) -o $@ obj/re2/testing/$*.o $(TESTOFILES) -Lobj/so -lre2 obj/libre2.a $(RE2_LDFLAGS) $(LDFLAGS) -lgtest -lgtest_main
257
258obj/test/regexp_benchmark: obj/libre2.a obj/re2/testing/regexp_benchmark.o $(TESTOFILES)
259	@mkdir -p obj/test
260	$(CXX) -o $@ obj/re2/testing/regexp_benchmark.o $(TESTOFILES) obj/libre2.a $(RE2_LDFLAGS) $(LDFLAGS) -lgtest -lbenchmark -lbenchmark_main
261
262obj/test/re2_fuzzer: obj/libre2.a obj/re2/fuzzing/re2_fuzzer.o
263	@mkdir -p obj/test
264	$(CXX) -o $@ obj/re2/fuzzing/re2_fuzzer.o obj/libre2.a $(RE2_LDFLAGS) $(LDFLAGS)
265
266ifdef REBUILD_TABLES
267.PRECIOUS: re2/perl_groups.cc
268re2/perl_groups.cc: re2/make_perl_groups.pl
269	perl $< > $@
270
271.PRECIOUS: re2/unicode_%.cc
272re2/unicode_%.cc: re2/make_unicode_%.py re2/unicode.py
273	python3 $< > $@
274endif
275
276.PHONY: distclean
277distclean: clean
278	rm -f re2/perl_groups.cc re2/unicode_casefold.cc re2/unicode_groups.cc
279
280.PHONY: clean
281clean:
282	rm -rf obj
283	rm -f re2/*.pyc
284
285.PHONY: testofiles
286testofiles: $(TESTOFILES)
287
288.PHONY: test
289test: $(DTESTS) $(TESTS) $(STESTS) debug-test static-test shared-test
290
291.PHONY: debug-test
292debug-test: $(DTESTS)
293	@./runtests $(DTESTS)
294
295.PHONY: static-test
296static-test: $(TESTS)
297	@./runtests $(TESTS)
298
299.PHONY: shared-test
300shared-test: $(STESTS)
301	@./runtests -shared-library-path obj/so $(STESTS)
302
303.PHONY: debug-bigtest
304debug-bigtest: $(DTESTS) $(DBIGTESTS)
305	@./runtests $(DTESTS) $(DBIGTESTS)
306
307.PHONY: static-bigtest
308static-bigtest: $(TESTS) $(BIGTESTS)
309	@./runtests $(TESTS) $(BIGTESTS)
310
311.PHONY: shared-bigtest
312shared-bigtest: $(STESTS) $(SBIGTESTS)
313	@./runtests -shared-library-path obj/so $(STESTS) $(SBIGTESTS)
314
315.PHONY: benchmark
316benchmark: obj/test/regexp_benchmark
317
318.PHONY: fuzz
319fuzz: obj/test/re2_fuzzer
320
321.PHONY: install
322install: static-install shared-install
323
324.PHONY: static
325static: obj/libre2.a
326
327.PHONY: static-install
328static-install: obj/libre2.a common-install
329	$(INSTALL) obj/libre2.a $(DESTDIR)$(libdir)/libre2.a
330
331.PHONY: shared
332shared: obj/so/libre2.$(SOEXT)
333
334.PHONY: shared-install
335shared-install: obj/so/libre2.$(SOEXT) common-install
336	$(INSTALL) obj/so/libre2.$(SOEXT) $(DESTDIR)$(libdir)/libre2.$(SOEXTVER00)
337	ln -sf libre2.$(SOEXTVER00) $(DESTDIR)$(libdir)/libre2.$(SOEXTVER)
338	ln -sf libre2.$(SOEXTVER00) $(DESTDIR)$(libdir)/libre2.$(SOEXT)
339
340.PHONY: common-install
341common-install:
342	mkdir -p $(DESTDIR)$(includedir)/re2 $(DESTDIR)$(libdir)/pkgconfig
343	$(INSTALL_DATA) $(INSTALL_HFILES) $(DESTDIR)$(includedir)/re2
344	$(INSTALL_DATA) re2.pc.in $(DESTDIR)$(libdir)/pkgconfig/re2.pc
345	$(SED_INPLACE) -e "s#@CMAKE_INSTALL_FULL_INCLUDEDIR@#$(includedir)#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
346	$(SED_INPLACE) -e "s#@CMAKE_INSTALL_FULL_LIBDIR@#$(libdir)#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
347	$(SED_INPLACE) -e "s#@REQUIRES@#$(REQUIRES)#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
348	$(SED_INPLACE) -e "s#@SONAME@#$(SONAME)#" $(DESTDIR)$(libdir)/pkgconfig/re2.pc
349
350.PHONY: testinstall
351testinstall: static-testinstall shared-testinstall
352	@echo
353	@echo Install tests passed.
354	@echo
355
356.PHONY: static-testinstall
357static-testinstall:
358ifeq ($(shell uname),Darwin)
359	@echo Skipping test for libre2.a on Darwin.
360else ifeq ($(shell uname),SunOS)
361	@echo Skipping test for libre2.a on SunOS.
362else
363	@mkdir -p obj
364	@cp testinstall.cc obj/static-testinstall.cc
365	(cd obj && export PKG_CONFIG_PATH=$(DESTDIR)$(libdir)/pkgconfig; \
366	  $(CXX) static-testinstall.cc -o static-testinstall $(CXXFLAGS) $(LDFLAGS) \
367	  $$($(PKG_CONFIG) re2 --cflags) \
368	  $$($(PKG_CONFIG) re2 --libs | sed -e 's/-Wl / /g' | sed -e 's/-lre2/-l:libre2.a/'))
369	obj/static-testinstall
370endif
371
372.PHONY: shared-testinstall
373shared-testinstall:
374	@mkdir -p obj
375	@cp testinstall.cc obj/shared-testinstall.cc
376	(cd obj && export PKG_CONFIG_PATH=$(DESTDIR)$(libdir)/pkgconfig; \
377	  $(CXX) shared-testinstall.cc -o shared-testinstall $(CXXFLAGS) $(LDFLAGS) \
378	  $$($(PKG_CONFIG) re2 --cflags) \
379	  $$($(PKG_CONFIG) re2 --libs | sed -e 's/-Wl / /g'))
380ifeq ($(shell uname),Darwin)
381	DYLD_LIBRARY_PATH="$(DESTDIR)$(libdir):$(DYLD_LIBRARY_PATH)" obj/shared-testinstall
382else
383	LD_LIBRARY_PATH="$(DESTDIR)$(libdir):$(LD_LIBRARY_PATH)" obj/shared-testinstall
384endif
385
386.PHONY: benchlog
387benchlog: obj/test/regexp_benchmark
388	(echo '==BENCHMARK==' `hostname` `date`; \
389	  (uname -a; $(CXX) --version; git rev-parse --short HEAD; file obj/test/regexp_benchmark) | sed 's/^/# /'; \
390	  echo; \
391	  ./obj/test/regexp_benchmark 'PCRE|RE2') | tee -a benchlog.$$(hostname | sed 's/\..*//')
392
393.PHONY: log
394log:
395	$(MAKE) clean
396	$(MAKE) CXXFLAGS="$(CXXFLAGS) -DLOGGING=1" \
397		$(filter obj/test/exhaustive%_test,$(BIGTESTS))
398	echo '#' RE2 exhaustive tests built by make log >re2-exhaustive.txt
399	echo '#' $$(date) >>re2-exhaustive.txt
400	obj/test/exhaustive_test |grep -v '^PASS$$' >>re2-exhaustive.txt
401	obj/test/exhaustive1_test |grep -v '^PASS$$' >>re2-exhaustive.txt
402	obj/test/exhaustive2_test |grep -v '^PASS$$' >>re2-exhaustive.txt
403	obj/test/exhaustive3_test |grep -v '^PASS$$' >>re2-exhaustive.txt
404
405	$(MAKE) CXXFLAGS="$(CXXFLAGS) -DLOGGING=1" obj/test/search_test
406	echo '#' RE2 basic search tests built by make $@ >re2-search.txt
407	echo '#' $$(date) >>re2-search.txt
408	obj/test/search_test |grep -v '^PASS$$' >>re2-search.txt
409