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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 | # # Makefile for musl (requires GNU make) # # This is how simple every makefile should be... # No, I take that back - actually most should be less than half this size. # # Use config.mak to override any of the following variables. # Do not make changes here. # exec_prefix = /usr/local bindir = $(exec_prefix)/bin prefix = /usr/local/musl includedir = $(prefix)/include libdir = $(prefix)/lib syslibdir = /lib SRCS = $(sort $(wildcard src/*/*.c arch/$(ARCH)/src/*.c)) OBJS = $(SRCS:.c=.o) LOBJS = $(OBJS:.o=.lo) GENH = include/bits/alltypes.h GENH_INT = src/internal/version.h IMPH = src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h LDFLAGS = LIBCC = -lgcc CPPFLAGS = CFLAGS = -Os -pipe CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc CFLAGS_ALL = $(CFLAGS_C99FSE) CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./arch/$(ARCH) -I./src/internal -I./include CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS) CFLAGS_ALL_STATIC = $(CFLAGS_ALL) CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED AR = $(CROSS_COMPILE)ar RANLIB = $(CROSS_COMPILE)ranlib INSTALL = ./tools/install.sh ARCH_INCLUDES = $(wildcard arch/$(ARCH)/bits/*.h) ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH) $(ARCH_INCLUDES:arch/$(ARCH)/%=include/%)) EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a) CRT_LIBS = lib/crt1.o lib/Scrt1.o lib/crti.o lib/crtn.o STATIC_LIBS = lib/libc.a SHARED_LIBS = lib/libc.so TOOL_LIBS = lib/musl-gcc.specs ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS) ALL_TOOLS = tools/musl-gcc LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH)$(SUBARCH).so.1 -include config.mak all: $(ALL_LIBS) $(ALL_TOOLS) install: install-libs install-headers install-tools clean: rm -f crt/*.o rm -f $(OBJS) rm -f $(LOBJS) rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so rm -f $(ALL_TOOLS) rm -f $(GENH) $(GENH_INT) rm -f include/bits distclean: clean rm -f config.mak include/bits: @test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; } ln -sf ../arch/$(ARCH)/bits $@ include/bits/alltypes.h.in: include/bits include/bits/alltypes.h: include/bits/alltypes.h.in include/alltypes.h.in tools/mkalltypes.sed sed -f tools/mkalltypes.sed include/bits/alltypes.h.in include/alltypes.h.in > $@ src/internal/version.h: $(wildcard VERSION .git) printf '#define VERSION "%s"\n' "$$(sh tools/version.sh)" > $@ src/internal/version.lo: src/internal/version.h src/ldso/dynlink.lo: arch/$(ARCH)/reloc.h crt/crt1.o crt/Scrt1.o: $(wildcard arch/$(ARCH)/crt_arch.h) crt/Scrt1.o: CFLAGS += -fPIC OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%)) $(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3 MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/string/memset.c $(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_MEMOPS) # This incantation ensures that changes to any subarch asm files will # force the corresponding object file to be rebuilt, even if the implicit # rule below goes indirectly through a .sub file. define mkasmdep $(dir $(patsubst %/,%,$(dir $(1))))$(notdir $(1:.s=.o)): $(1) endef $(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s)))) %.o: $(ARCH)$(ASMSUBARCH)/%.sub $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $(dir $<)$(shell cat $<) %.o: $(ARCH)/%.s $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $< %.o: %.c $(GENH) $(IMPH) $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $< %.lo: $(ARCH)$(ASMSUBARCH)/%.sub $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $(dir $<)$(shell cat $<) %.lo: $(ARCH)/%.s $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $< %.lo: %.c $(GENH) $(IMPH) $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $< lib/libc.so: $(LOBJS) $(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS) -nostdlib -shared \ -Wl,-e,_start -Wl,-Bsymbolic-functions \ -o $@ $(LOBJS) $(LIBCC) lib/libc.a: $(OBJS) rm -f $@ $(AR) rc $@ $(OBJS) $(RANLIB) $@ $(EMPTY_LIBS): rm -f $@ $(AR) rc $@ lib/%.o: crt/%.o cp $< $@ lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@ tools/musl-gcc: config.mak printf '#!/bin/sh\nexec "$${REALGCC:-gcc}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@ chmod +x $@ $(DESTDIR)$(bindir)/%: tools/% $(INSTALL) -D $< $@ $(DESTDIR)$(libdir)/%.so: lib/%.so $(INSTALL) -D -m 755 $< $@ $(DESTDIR)$(libdir)/%: lib/% $(INSTALL) -D -m 644 $< $@ $(DESTDIR)$(includedir)/bits/%: arch/$(ARCH)/bits/% $(INSTALL) -D -m 644 $< $@ $(DESTDIR)$(includedir)/%: include/% $(INSTALL) -D -m 644 $< $@ $(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(libdir)/libc.so $(INSTALL) -D -l $(libdir)/libc.so $@ || true install-libs: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(if $(SHARED_LIBS),$(DESTDIR)$(LDSO_PATHNAME),) install-headers: $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) install-tools: $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%) .PRECIOUS: $(CRT_LIBS:lib/%=crt/%) .PHONY: all clean install install-libs install-headers install-tools |