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1 # | |
2 # Makefile for musl (requires GNU make) | |
3 # | |
4 # This is how simple every makefile should be... | |
5 # No, I take that back - actually most should be less than half this size. | |
6 # | |
7 # Use config.mak to override any of the following variables. | |
8 # Do not make changes here. | |
9 # | |
10 | |
11 exec_prefix = /usr/local | |
12 bindir = $(exec_prefix)/bin | |
13 | |
14 prefix = /usr/local/musl | |
15 includedir = $(prefix)/include | |
16 libdir = $(prefix)/lib | |
17 syslibdir = /lib | |
18 | |
19 SRCS = $(sort $(wildcard src/*/*.c arch/$(ARCH)/src/*.c)) | |
20 OBJS = $(SRCS:.c=.o) | |
21 LOBJS = $(OBJS:.o=.lo) | |
22 GENH = include/bits/alltypes.h | |
23 GENH_INT = src/internal/version.h | |
24 IMPH = src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h | |
25 | |
26 LDFLAGS = | |
27 LDFLAGS_AUTO = | |
28 LIBCC = -lgcc | |
29 CPPFLAGS = | |
30 CFLAGS = | |
31 CFLAGS_AUTO = -Os -pipe | |
32 CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc | |
33 | |
34 CFLAGS_ALL = $(CFLAGS_C99FSE) | |
35 CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./arch/$(ARCH) -I./src/internal -I./include | |
36 CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS_AUTO) $(CFLAGS) | |
37 CFLAGS_ALL_STATIC = $(CFLAGS_ALL) | |
38 CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED | |
39 | |
40 LDFLAGS_ALL = $(LDFLAGS_AUTO) $(LDFLAGS) | |
41 | |
42 AR = $(CROSS_COMPILE)ar | |
43 RANLIB = $(CROSS_COMPILE)ranlib | |
44 INSTALL = ./tools/install.sh | |
45 | |
46 ARCH_INCLUDES = $(wildcard arch/$(ARCH)/bits/*.h) | |
47 ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH) $(ARCH_INCLU
DES:arch/$(ARCH)/%=include/%)) | |
48 | |
49 EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl | |
50 EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a) | |
51 CRT_LIBS = lib/crt1.o lib/Scrt1.o lib/rcrt1.o lib/crti.o lib/crtn.o | |
52 STATIC_LIBS = lib/libc.a | |
53 SHARED_LIBS = lib/libc.so | |
54 TOOL_LIBS = lib/musl-gcc.specs | |
55 ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS) | |
56 ALL_TOOLS = tools/musl-gcc | |
57 | |
58 WRAPCC_GCC = gcc | |
59 WRAPCC_CLANG = clang | |
60 | |
61 LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH)$(SUBARCH).so.1 | |
62 | |
63 -include config.mak | |
64 | |
65 all: $(ALL_LIBS) $(ALL_TOOLS) | |
66 | |
67 install: install-libs install-headers install-tools | |
68 | |
69 clean: | |
70 rm -f crt/*.o | |
71 rm -f $(OBJS) | |
72 rm -f $(LOBJS) | |
73 rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so | |
74 rm -f $(ALL_TOOLS) | |
75 rm -f $(GENH) $(GENH_INT) | |
76 rm -f include/bits | |
77 | |
78 distclean: clean | |
79 rm -f config.mak | |
80 | |
81 include/bits: | |
82 @test "$(ARCH)" || { echo "Please set ARCH in config.mak before running
make." ; exit 1 ; } | |
83 ln -sf ../arch/$(ARCH)/bits $@ | |
84 | |
85 include/bits/alltypes.h.in: include/bits | |
86 | |
87 include/bits/alltypes.h: include/bits/alltypes.h.in include/alltypes.h.in tools/
mkalltypes.sed | |
88 sed -f tools/mkalltypes.sed include/bits/alltypes.h.in include/alltypes.
h.in > $@ | |
89 | |
90 src/internal/version.h: $(wildcard VERSION .git) | |
91 printf '#define VERSION "%s"\n' "$$(sh tools/version.sh)" > $@ | |
92 | |
93 src/internal/version.o src/internal/version.lo: src/internal/version.h | |
94 | |
95 crt/rcrt1.o src/ldso/dlstart.lo src/ldso/dynlink.lo: src/internal/dynlink.h arch
/$(ARCH)/reloc.h | |
96 | |
97 crt/crt1.o crt/Scrt1.o crt/rcrt1.o src/ldso/dlstart.lo: $(wildcard arch/$(ARCH)/
crt_arch.h) | |
98 | |
99 crt/rcrt1.o: src/ldso/dlstart.c | |
100 | |
101 crt/Scrt1.o crt/rcrt1.o: CFLAGS_ALL += -fPIC | |
102 | |
103 OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%)) | |
104 $(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3 | |
105 | |
106 MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/s
tring/memset.c | |
107 $(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS_ALL += $(CFLAGS_MEMOPS) | |
108 | |
109 NOSSP_SRCS = $(wildcard crt/*.c) \ | |
110 src/env/__libc_start_main.c src/env/__init_tls.c \ | |
111 src/thread/__set_thread_area.c src/env/__stack_chk_fail.c \ | |
112 src/string/memset.c src/string/memcpy.c \ | |
113 src/ldso/dlstart.c src/ldso/dynlink.c | |
114 $(NOSSP_SRCS:%.c=%.o) $(NOSSP_SRCS:%.c=%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP) | |
115 | |
116 $(CRT_LIBS:lib/%=crt/%): CFLAGS_ALL += -DCRT | |
117 | |
118 # This incantation ensures that changes to any subarch asm files will | |
119 # force the corresponding object file to be rebuilt, even if the implicit | |
120 # rule below goes indirectly through a .sub file. | |
121 define mkasmdep | |
122 $(dir $(patsubst %/,%,$(dir $(1))))$(notdir $(1:.s=.o)): $(1) | |
123 endef | |
124 $(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s)))) | |
125 | |
126 # Choose invocation of assembler to be used | |
127 # $(1) is input file, $(2) is output file, $(3) is assembler flags | |
128 ifeq ($(ADD_CFI),yes) | |
129 AS_CMD = LC_ALL=C awk -f tools/add-cfi.common.awk -f tools/add-cfi.$(ARC
H).awk $< | $(CC) -x assembler -c -o $@ - | |
130 else | |
131 AS_CMD = $(CC) -c -o $@ $< | |
132 endif | |
133 | |
134 %.o: $(ARCH)$(ASMSUBARCH)/%.sub | |
135 $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $(dir $<)$(shell cat $<) | |
136 | |
137 %.o: $(ARCH)/%.s | |
138 $(AS_CMD) $(CFLAGS_ALL_STATIC) | |
139 | |
140 %.o: %.c $(GENH) $(IMPH) | |
141 $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $< | |
142 | |
143 %.lo: $(ARCH)$(ASMSUBARCH)/%.sub | |
144 $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $(dir $<)$(shell cat $<) | |
145 | |
146 %.lo: $(ARCH)/%.s | |
147 $(AS_CMD) $(CFLAGS_ALL_SHARED) | |
148 | |
149 %.lo: %.c $(GENH) $(IMPH) | |
150 $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $< | |
151 | |
152 lib/libc.so: $(LOBJS) | |
153 $(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS_ALL) -nostdlib -shared \ | |
154 -Wl,-e,_dlstart -Wl,-Bsymbolic-functions \ | |
155 -o $@ $(LOBJS) $(LIBCC) | |
156 | |
157 lib/libc.a: $(OBJS) | |
158 rm -f $@ | |
159 $(AR) rc $@ $(OBJS) | |
160 $(RANLIB) $@ | |
161 | |
162 $(EMPTY_LIBS): | |
163 rm -f $@ | |
164 $(AR) rc $@ | |
165 | |
166 lib/%.o: crt/%.o | |
167 cp $< $@ | |
168 | |
169 lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak | |
170 sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@ | |
171 | |
172 tools/musl-gcc: config.mak | |
173 printf '#!/bin/sh\nexec "$${REALGCC:-$(WRAPCC_GCC)}" "$$@" -specs "%s/mu
sl-gcc.specs"\n' "$(libdir)" > $@ | |
174 chmod +x $@ | |
175 | |
176 tools/%-clang: tools/%-clang.in config.mak | |
177 sed -e 's!@CC@!$(WRAPCC_CLANG)!g' -e 's!@PREFIX@!$(prefix)!g' -e 's!@INC
DIR@!$(includedir)!g' -e 's!@LIBDIR@!$(libdir)!g' -e 's!@LDSO@!$(LDSO_PATHNAME)!
g' $< > $@ | |
178 chmod +x $@ | |
179 | |
180 $(DESTDIR)$(bindir)/%: tools/% | |
181 $(INSTALL) -D $< $@ | |
182 | |
183 $(DESTDIR)$(libdir)/%.so: lib/%.so | |
184 $(INSTALL) -D -m 755 $< $@ | |
185 | |
186 $(DESTDIR)$(libdir)/%: lib/% | |
187 $(INSTALL) -D -m 644 $< $@ | |
188 | |
189 $(DESTDIR)$(includedir)/bits/%: arch/$(ARCH)/bits/% | |
190 $(INSTALL) -D -m 644 $< $@ | |
191 | |
192 $(DESTDIR)$(includedir)/%: include/% | |
193 $(INSTALL) -D -m 644 $< $@ | |
194 | |
195 $(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(libdir)/libc.so | |
196 $(INSTALL) -D -l $(libdir)/libc.so $@ || true | |
197 | |
198 install-libs: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(if $(SHARED_LIBS),$(DEST
DIR)$(LDSO_PATHNAME),) | |
199 | |
200 install-headers: $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) | |
201 | |
202 install-tools: $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%) | |
203 | |
204 musl-git-%.tar.gz: .git | |
205 git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ $
(patsubst musl-git-%.tar.gz,%,$@) | |
206 | |
207 musl-%.tar.gz: .git | |
208 git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v
$(patsubst musl-%.tar.gz,%,$@) | |
209 | |
210 .PHONY: all clean install install-libs install-headers install-tools | |
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