2 # Makefile for musl (requires GNU make)
4 # This is how simple every makefile should be...
5 # No, I take that back - actually most should be less than half this size.
7 # Use config.mak to override any of the following variables.
8 # Do not make changes here.
11 exec_prefix = /usr/local
12 bindir = $(exec_prefix)/bin
14 prefix = /usr/local/musl
15 includedir = $(prefix)/include
16 libdir = $(prefix)/lib
19 SRCS = $(sort $(wildcard src/*/*.c))
21 LOBJS = $(OBJS:.o=.lo)
22 GENH = include/bits/alltypes.h
27 CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc
29 CFLAGS_ALL = $(CFLAGS_C99FSE)
30 CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./src/internal -I./include -I./arch/$(ARCH)
31 CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS)
32 CFLAGS_ALL_STATIC = $(CFLAGS_ALL)
33 CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED -O3
35 AR = $(CROSS_COMPILE)ar
36 RANLIB = $(CROSS_COMPILE)ranlib
38 ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH))
40 EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
41 EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
42 CRT_LIBS = lib/crt1.o lib/crti.o lib/crtn.o
43 STATIC_LIBS = lib/libc.a
44 SHARED_LIBS = lib/libc.so
45 TOOL_LIBS = lib/musl-gcc.specs
46 ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS)
47 ALL_TOOLS = tools/musl-gcc
49 LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH).so.1
53 all: $(ALL_LIBS) $(ALL_TOOLS)
55 install: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%) $(if $(SHARED_LIBS),$(DESTDIR)$(LDSO_PATHNAME),)
61 rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
70 @test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
71 ln -sf ../arch/$(ARCH)/bits $@
73 include/bits/alltypes.h.sh: include/bits
75 include/bits/alltypes.h: include/bits/alltypes.h.sh
79 $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
82 $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
85 $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
88 $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
91 $(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS) -nostdlib -shared \
92 -Wl,-e,_start -Wl,-Bsymbolic-functions \
93 -Wl,-soname=libc.so -o $@ $(LOBJS) -lgcc
107 lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
108 sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@
110 tools/musl-gcc: config.mak
111 printf '#!/bin/sh\nexec gcc "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
114 $(DESTDIR)$(bindir)/%: tools/%
117 $(DESTDIR)$(libdir)/%.so: lib/%.so
118 install -D -m 755 $< $@
120 $(DESTDIR)$(libdir)/%: lib/%
121 install -D -m 644 $< $@
123 $(DESTDIR)$(includedir)/%: include/%
124 install -D -m 644 $< $@
126 $(DESTDIR)$(LDSO_PATHNAME): lib/libc.so
127 install -d -m 755 $(DESTDIR)$(syslibdir) || true
128 ln -sf $(libdir)/libc.so $@ || true
130 .PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
132 .PHONY: all clean install