mirror of
git://git.musl-libc.org/musl
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d66ab4f140
previously, determination of the list of header files for installation depended on the include/bits symlink (to the arch-specific files) already having been created. in other words, running "make install" immediately after configure without first running "make" caused the bits headers not to be installed. the solution I have applied is to pull the list of headers directly from arch/$(ARCH)/bits rather than include/bits, and likewise to install directly from arch/$(ARCH)/bits rather than via the symlink. at this point, the only purpose served by keeping the symlink around is that it enables use of the in-tree headers and libs directly via -I and -L, which can be useful when testing against a new version of the library before installing it. on the other hand, removing the bits symlink would be beneficial if we ever want to support building multiple archs in the same source tree.
151 lines
3.7 KiB
Makefile
151 lines
3.7 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 $(wildcard src/*/*.c arch/$(ARCH)/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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IMPH = src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h
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LDFLAGS =
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LIBCC = -lgcc
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CPPFLAGS =
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CFLAGS = -Os -pipe
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CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc
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CFLAGS_ALL = $(CFLAGS_C99FSE)
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CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./arch/$(ARCH) -I./src/internal -I./include
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CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS)
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CFLAGS_ALL_STATIC = $(CFLAGS_ALL)
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CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED
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AR = $(CROSS_COMPILE)ar
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RANLIB = $(CROSS_COMPILE)ranlib
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ARCH_INCLUDES = $(wildcard arch/$(ARCH)/bits/*.h)
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ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH) $(ARCH_INCLUDES:arch/$(ARCH)/%=include/%))
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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/Scrt1.o lib/crti.o lib/crtn.o
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STATIC_LIBS = lib/libc.a
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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) $(EMPTY_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: install-libs install-headers install-tools
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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 $(GENH)
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rm -f include/bits
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distclean: clean
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rm -f config.mak
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include/bits:
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@test "$(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 $< > $@
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src/ldso/dynlink.lo: arch/$(ARCH)/reloc.h
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%.o: $(ARCH)/%.s
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$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
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%.o: %.c $(GENH) $(IMPH)
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$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
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%.lo: $(ARCH)/%.s
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$(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
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%.lo: %.c $(GENH) $(IMPH)
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$(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
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lib/libc.so: $(LOBJS)
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$(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS) -nostdlib -shared \
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-Wl,-e,_start -Wl,-Bsymbolic-functions \
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-o $@ $(LOBJS) $(LIBCC)
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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 "$${REALGCC:-gcc}" "$$@" -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)$(includedir)/bits/%: arch/$(ARCH)/bits/%
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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): $(DESTDIR)$(syslibdir)
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ln -sf $(libdir)/libc.so $@ || true
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$(DESTDIR)$(syslibdir):
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install -d -m 755 $(DESTDIR)$(syslibdir)
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install-libs: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(if $(SHARED_LIBS),$(DESTDIR)$(LDSO_PATHNAME),)
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install-headers: $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%)
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install-tools: $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)
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.PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
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.PHONY: all clean install install-libs install-headers install-tools
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