| # |
| # 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 = |
| LDFLAGS_AUTO = |
| LIBCC = -lgcc |
| CPPFLAGS = |
| CFLAGS = |
| CFLAGS_AUTO = -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_AUTO) $(CFLAGS) |
| CFLAGS_ALL_STATIC = $(CFLAGS_ALL) |
| CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED |
| |
| LDFLAGS_ALL = $(LDFLAGS_AUTO) $(LDFLAGS) |
| |
| 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/rcrt1.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 |
| |
| WRAPCC_GCC = gcc |
| WRAPCC_CLANG = clang |
| |
| 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 |
| |
| crt/rcrt1.o src/ldso/dlstart.lo src/ldso/dynlink.lo: src/internal/dynlink.h arch/$(ARCH)/reloc.h |
| |
| crt/crt1.o crt/Scrt1.o crt/rcrt1.o src/ldso/dlstart.lo: $(wildcard arch/$(ARCH)/crt_arch.h) |
| |
| crt/rcrt1.o: src/ldso/dlstart.c |
| |
| crt/Scrt1.o crt/rcrt1.o: CFLAGS_ALL += -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_ALL += $(CFLAGS_MEMOPS) |
| |
| NOSSP_SRCS = $(wildcard crt/*.c) \ |
| src/env/__libc_start_main.c src/env/__init_tls.c \ |
| src/thread/__set_thread_area.c src/env/__stack_chk_fail.c \ |
| src/string/memset.c src/string/memcpy.c \ |
| src/ldso/dlstart.c src/ldso/dynlink.c |
| $(NOSSP_SRCS:%.c=%.o) $(NOSSP_SRCS:%.c=%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP) |
| |
| $(CRT_LIBS:lib/%=crt/%): CFLAGS_ALL += -DCRT |
| |
| # 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)))) |
| |
| # Choose invocation of assembler to be used |
| # $(1) is input file, $(2) is output file, $(3) is assembler flags |
| ifeq ($(ADD_CFI),yes) |
| AS_CMD = LC_ALL=C awk -f tools/add-cfi.common.awk -f tools/add-cfi.$(ARCH).awk $< | $(CC) -x assembler -c -o $@ - |
| else |
| AS_CMD = $(CC) -c -o $@ $< |
| endif |
| |
| %.o: $(ARCH)$(ASMSUBARCH)/%.sub |
| $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $(dir $<)$(shell cat $<) |
| |
| %.o: $(ARCH)/%.s |
| $(AS_CMD) $(CFLAGS_ALL_STATIC) |
| |
| %.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 |
| $(AS_CMD) $(CFLAGS_ALL_SHARED) |
| |
| %.lo: %.c $(GENH) $(IMPH) |
| $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $< |
| |
| lib/libc.so: $(LOBJS) |
| $(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS_ALL) -nostdlib -shared \ |
| -Wl,-e,_dlstart -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:-$(WRAPCC_GCC)}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@ |
| chmod +x $@ |
| |
| tools/%-clang: tools/%-clang.in config.mak |
| sed -e 's!@CC@!$(WRAPCC_CLANG)!g' -e 's!@PREFIX@!$(prefix)!g' -e 's!@INCDIR@!$(includedir)!g' -e 's!@LIBDIR@!$(libdir)!g' -e 's!@LDSO@!$(LDSO_PATHNAME)!g' $< > $@ |
| 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)$(bindir)/%) |
| |
| musl-git-%.tar.gz: .git |
| git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ $(patsubst musl-git-%.tar.gz,%,$@) |
| |
| musl-%.tar.gz: .git |
| git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@) |
| |
| .PHONY: all clean install install-libs install-headers install-tools |