mirror of git://git.musl-libc.org/musl
121 lines
2.9 KiB
Makefile
121 lines
2.9 KiB
Makefile
#
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# Makefile for musl (requires GNU make)
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#
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# This is how simple every makefile should be...
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# No, I take that back - actually most should be less than half this size.
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#
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# Use config.mak to override any of the following variables.
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# Do not make changes here.
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#
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exec_prefix = /usr/local
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bindir = $(exec_prefix)/bin
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prefix = /usr/local/musl
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includedir = $(prefix)/include
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libdir = $(prefix)/lib
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syslibdir = /lib
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SRCS = $(sort $(wildcard src/*/*.c))
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OBJS = $(SRCS:.c=.o)
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LOBJS = $(OBJS:.o=.lo)
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GENH = include/bits/alltypes.h
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CFLAGS = -Os -nostdinc -ffreestanding -std=c99 -D_XOPEN_SOURCE=700 -pipe
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LDFLAGS = -nostdlib -shared -fPIC -Wl,-e,_start -Wl,-Bsymbolic-functions
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INC = -I./src/internal -I./include -I./arch/$(ARCH)
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PIC = -fPIC -O3
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AR = $(CROSS_COMPILE)ar
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RANLIB = $(CROSS_COMPILE)ranlib
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ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH))
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EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
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EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
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CRT_LIBS = lib/crt1.o lib/crti.o lib/crtn.o
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STATIC_LIBS = lib/libc.a $(EMPTY_LIBS)
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SHARED_LIBS = lib/libc.so
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TOOL_LIBS = lib/musl-gcc.specs
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ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(TOOL_LIBS)
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ALL_TOOLS = tools/musl-gcc
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LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH).so.1
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-include config.mak
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all: $(ALL_LIBS) $(ALL_TOOLS)
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install: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%) $(if $(SHARED_LIBS),$(DESTDIR)$(LDSO_PATHNAME),)
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clean:
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rm -f crt/*.o
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rm -f $(OBJS)
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rm -f $(LOBJS)
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rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
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rm -f $(ALL_TOOLS)
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rm -f $(GENH)
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rm -f include/bits
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include/bits:
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@test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
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ln -sf ../arch/$(ARCH)/bits $@
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include/bits/alltypes.h.sh: include/bits
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include/bits/alltypes.h: include/bits/alltypes.h.sh
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sh $< > $@
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%.o: $(ARCH)/%.s
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$(CC) $(CFLAGS) $(INC) -c -o $@ $<
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%.o: %.c $(GENH)
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$(CC) $(CFLAGS) $(INC) -c -o $@ $<
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%.lo: $(ARCH)/%.s
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$(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
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%.lo: %.c $(GENH)
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$(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
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lib/libc.so: $(LOBJS)
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$(CC) $(LDFLAGS) -Wl,-soname=libc.so -o $@ $(LOBJS) -lgcc
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lib/libc.a: $(OBJS)
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rm -f $@
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$(AR) rc $@ $(OBJS)
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$(RANLIB) $@
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$(EMPTY_LIBS):
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rm -f $@
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$(AR) rc $@
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lib/%.o: crt/%.o
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cp $< $@
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lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
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sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@
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tools/musl-gcc: config.mak
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printf '#!/bin/sh\nexec gcc "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
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chmod +x $@
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$(DESTDIR)$(bindir)/%: tools/%
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install -D $< $@
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$(DESTDIR)$(libdir)/%.so: lib/%.so
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install -D -m 755 $< $@
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$(DESTDIR)$(libdir)/%: lib/%
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install -D -m 644 $< $@
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$(DESTDIR)$(includedir)/%: include/%
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install -D -m 644 $< $@
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$(DESTDIR)$(LDSO_PATHNAME): lib/libc.so
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install -d -m 755 $(DESTDIR)$(syslibdir) || true
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ln -sf $(libdir)/libc.so $@ || true
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.PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
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.PHONY: all clean install
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