1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
############################################################################
# bfs #
# Copyright (C) 2015-2021 Tavian Barnes <tavianator@tavianator.com> #
# #
# Permission to use, copy, modify, and/or distribute this software for any #
# purpose with or without fee is hereby granted. #
# #
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES #
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF #
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR #
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES #
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN #
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF #
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. #
############################################################################
ifeq ($(wildcard .git),)
VERSION := 2.3.1
else
VERSION := $(shell git describe --always)
endif
ifndef OS
OS := $(shell uname)
endif
ifndef ARCH
ARCH := $(shell uname -m)
endif
CC ?= gcc
INSTALL ?= install
MKDIR ?= mkdir -p
RM ?= rm -f
DEFAULT_CFLAGS := \
-g \
-Wall \
-Wmissing-declarations \
-Wshadow \
-Wsign-compare \
-Wstrict-prototypes \
-Wimplicit-fallthrough
CFLAGS ?= $(DEFAULT_CFLAGS)
LDFLAGS ?=
DEPFLAGS ?= -MD -MP -MF $(@:.o=.d)
DESTDIR ?=
PREFIX ?= /usr
MANDIR ?= $(PREFIX)/share/man
LOCAL_CPPFLAGS := \
-D__EXTENSIONS__ \
-D_ATFILE_SOURCE \
-D_BSD_SOURCE \
-D_DARWIN_C_SOURCE \
-D_DEFAULT_SOURCE \
-D_FILE_OFFSET_BITS=64 \
-D_GNU_SOURCE \
-DBFS_VERSION=\"$(VERSION)\"
LOCAL_CFLAGS := -std=c99
LOCAL_LDFLAGS :=
LOCAL_LDLIBS :=
ASAN := $(filter asan,$(MAKECMDGOALS))
MSAN := $(filter msan,$(MAKECMDGOALS))
UBSAN := $(filter ubsan,$(MAKECMDGOALS))
ifndef MSAN
WITH_ONIGURUMA := y
endif
ifdef WITH_ONIGURUMA
LOCAL_LDLIBS += -lonig
LOCAL_CFLAGS += -DBFS_WITH_ONIGURUMA=1
endif
ifeq ($(OS),Linux)
ifndef MSAN # These libraries are not built with msan
WITH_ACL := y
WITH_ATTR := y
WITH_LIBCAP := y
endif
ifdef WITH_ACL
LOCAL_LDLIBS += -lacl
else
LOCAL_CFLAGS += -DBFS_HAS_SYS_ACL=0
endif
ifdef WITH_ATTR
LOCAL_LDLIBS += -lattr
else
LOCAL_CFLAGS += -DBFS_HAS_SYS_XATTR=0
endif
ifdef WITH_LIBCAP
LOCAL_LDLIBS += -lcap
else
LOCAL_CFLAGS += -DBFS_HAS_SYS_CAPABILITY=0
endif
LOCAL_LDFLAGS += -Wl,--as-needed
LOCAL_LDLIBS += -lrt
DISTCHECK_FLAGS := TEST_FLAGS="--verbose --all --sudo"
else # Linux
DISTCHECK_FLAGS := TEST_FLAGS="--verbose"
endif
ifeq ($(OS),NetBSD)
LOCAL_LDLIBS += -lutil
endif
ifdef ASAN
LOCAL_CFLAGS += -fsanitize=address
SANITIZE := y
endif
ifdef MSAN
LOCAL_CFLAGS += -fsanitize=memory -fsanitize-memory-track-origins
SANITIZE := y
endif
ifdef UBSAN
LOCAL_CFLAGS += -fsanitize=undefined
SANITIZE := y
endif
ifdef SANITIZE
LOCAL_CFLAGS += -fno-sanitize-recover=all
endif
ifneq ($(filter gcov,$(MAKECMDGOALS)),)
LOCAL_CFLAGS += --coverage
endif
ifneq ($(filter release,$(MAKECMDGOALS)),)
CFLAGS := $(DEFAULT_CFLAGS) -O3 -flto -DNDEBUG
endif
ALL_CPPFLAGS = $(LOCAL_CPPFLAGS) $(CPPFLAGS) $(EXTRA_CPPFLAGS)
ALL_CFLAGS = $(ALL_CPPFLAGS) $(LOCAL_CFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) $(DEPFLAGS)
ALL_LDFLAGS = $(ALL_CFLAGS) $(LOCAL_LDFLAGS) $(LDFLAGS) $(EXTRA_LDFLAGS)
ALL_LDLIBS = $(LOCAL_LDLIBS) $(LDLIBS) $(EXTRA_LDLIBS)
# Save the full set of flags to rebuild everything when they change
ALL_FLAGS := $(CC) : $(ALL_CFLAGS) : $(ALL_LDFLAGS) : $(ALL_LDLIBS)
$(shell ./flags.sh $(ALL_FLAGS))
# Goals that make binaries
BIN_GOALS := bfs tests/mksock tests/trie tests/xtimegm
# Goals that are treated like flags by this Makefile
FLAG_GOALS := asan msan ubsan gcov release
# These are the remaining non-flag goals
GOALS := $(filter-out $(FLAG_GOALS),$(MAKECMDGOALS))
# Build the default goal if only flag goals are specified
FLAG_PREREQS :=
ifndef GOALS
FLAG_PREREQS += default
endif
# The different search strategies that we test
STRATEGIES := bfs dfs ids eds
STRATEGY_CHECKS := $(STRATEGIES:%=check-%)
# All the different checks we run
CHECKS := $(STRATEGY_CHECKS) check-trie check-xtimegm
default: bfs
all: $(BIN_GOALS)
bfs: \
bar.o \
bftw.o \
color.o \
ctx.o \
darray.o \
diag.o \
dir.o \
dstring.o \
eval.o \
exec.o \
fsade.o \
main.o \
mtab.o \
opt.o \
parse.o \
printf.o \
pwcache.o \
regex.o \
spawn.o \
stat.o \
time.o \
trie.o \
typo.o \
util.o
tests/mksock: tests/mksock.o
tests/trie: trie.o tests/trie.o
tests/xtimegm: time.o tests/xtimegm.o
$(BIN_GOALS):
+$(CC) $(ALL_LDFLAGS) $^ $(ALL_LDLIBS) -o $@
%.o: %.c .flags
$(CC) $(ALL_CFLAGS) -c $< -o $@
# Need a rule for .flags to convince make to apply the above pattern rule if
# .flags didn't exist when make was run
.flags:
# Make sure that "make release" builds everything, but "make release main.o" doesn't
$(FLAG_GOALS): $(FLAG_PREREQS)
@:
check: $(CHECKS)
$(STRATEGY_CHECKS): check-%: bfs tests/mksock
./tests.sh --bfs="./bfs -S $*" $(TEST_FLAGS)
check-trie check-xtimegm: check-%: tests/%
$<
distcheck:
+$(MAKE) -B asan ubsan check $(DISTCHECK_FLAGS)
ifneq ($(OS),Darwin)
+$(MAKE) -B msan check CC=clang $(DISTCHECK_FLAGS)
ifeq ($(ARCH),x86_64)
+$(MAKE) -B check EXTRA_CFLAGS="-m32" $(DISTCHECK_FLAGS)
endif
endif
+$(MAKE) -B release check $(DISTCHECK_FLAGS)
+$(MAKE) -B check $(DISTCHECK_FLAGS)
clean:
$(RM) $(BIN_GOALS) .flags *.[od] *.gcda *.gcno tests/*.[od] tests/*.gcda tests/*.gcno
install:
$(MKDIR) $(DESTDIR)$(PREFIX)/bin
$(INSTALL) -m755 bfs $(DESTDIR)$(PREFIX)/bin/bfs
$(MKDIR) $(DESTDIR)$(MANDIR)/man1
$(INSTALL) -m644 bfs.1 $(DESTDIR)$(MANDIR)/man1/bfs.1
$(MKDIR) $(DESTDIR)$(PREFIX)/share/bash-completion/completions
$(INSTALL) -m644 completions/bfs.bash $(DESTDIR)$(PREFIX)/share/bash-completion/completions/bfs
uninstall:
$(RM) $(DESTDIR)$(PREFIX)/share/bash-completion/completions/bfs
$(RM) $(DESTDIR)$(MANDIR)/man1/bfs.1
$(RM) $(DESTDIR)$(PREFIX)/bin/bfs
.PHONY: default all $(FLAG_GOALS) check $(CHECKS) distcheck clean install uninstall
.SUFFIXES:
-include $(wildcard *.d)
|
