nsz Git - musl/blob - Makefile

   1 #
   2 # Makefile for musl (requires GNU make)
   3 #
   4 # This is how simple every makefile should be...
   5 # No, I take that back - actually most should be less than half this size.
   6 #
   7 # Use config.mak to override any of the following variables.
   8 # Do not make changes here.
   9 #
  10
  11 exec_prefix = /usr/local
  12 bindir = $(exec_prefix)/bin
  13
  14 prefix = /usr/local/musl
  15 includedir = $(prefix)/include
  16 libdir = $(prefix)/lib
  17 syslibdir = /lib
  18
  19 SRCS = $(sort $(wildcard src/*/*.c))
  20 OBJS = $(SRCS:.c=.o)
  21 LOBJS = $(OBJS:.o=.lo)
  22 GENH = include/bits/alltypes.h
  23
  24 CFLAGS  = -Os -nostdinc -ffreestanding -std=c99 -D_XOPEN_SOURCE=700 -pipe
  25 LDFLAGS = -nostdlib -shared -fPIC -Wl,-e,_start -Wl,-Bsymbolic-functions
  26 INC     = -I./include -I./src/internal -I./arch/$(ARCH)
  27 PIC     = -fPIC -O3
  28 AR      = $(CROSS_COMPILE)ar
  29 RANLIB  = $(CROSS_COMPILE)ranlib
  30 OBJCOPY = $(CROSS_COMPILE)objcopy
  31
  32 ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH))
  33
  34 EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
  35 EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
  36 CRT_LIBS = lib/crt1.o lib/crti.o lib/crtn.o
  37 STATIC_LIBS = lib/libc.a $(EMPTY_LIBS)
  38 SHARED_LIBS = lib/libc.so
  39 ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS)
  40 ALL_TOOLS = tools/musl-gcc
  41
  42 LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH).so.1
  43
  44 -include config.mak
  45
  46 all: $(ALL_LIBS) $(ALL_TOOLS)
  47
  48 install: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%) $(DESTDIR)$(LDSO_PATHNAME)
  49
  50 clean:
  51         rm -f crt/*.o
  52         rm -f $(OBJS)
  53         rm -f $(LOBJS)
  54         rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
  55         rm -f $(ALL_TOOLS)
  56         rm -f $(GENH)
  57         rm -f include/bits
  58
  59 include/bits:
  60         @test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
  61         ln -sf ../arch/$(ARCH)/bits $@
  62
  63 include/bits/alltypes.h.sh: include/bits
  64
  65 include/bits/alltypes.h: include/bits/alltypes.h.sh
  66         sh $< > $@
  67
  68 %.o: $(ARCH)/%.s
  69         $(CC) $(CFLAGS) $(INC) -c -o $@ $<
  70
  71 %.o: %.c $(GENH)
  72         $(CC) $(CFLAGS) $(INC) -c -o $@ $<
  73
  74 %.lo: $(ARCH)/%.s
  75         $(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
  76
  77 %.lo: %.c $(GENH)
  78         $(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
  79
  80 lib/libc.so: $(LOBJS)
  81         $(CC) $(LDFLAGS) -Wl,-soname=libc.so -o $@ $(LOBJS) -lgcc
  82         $(OBJCOPY) --weaken $@
  83
  84 lib/libc.a: $(OBJS)
  85         rm -f $@
  86         $(AR) rc $@ $(OBJS)
  87         $(RANLIB) $@
  88
  89 $(EMPTY_LIBS):
  90         rm -f $@
  91         $(AR) rc $@
  92
  93 lib/%.o: crt/%.o
  94         cp $< $@
  95
  96 tools/musl-gcc: tools/gen-musl-gcc.sh config.mak
  97         sh $< "$(prefix)" "$(LDSO_PATHNAME)" > $@ || { rm -f $@ ; exit 1 ; }
  98         chmod +x $@
  99
 100 $(DESTDIR)$(bindir)/%: tools/%
 101         install -D $< $@
 102
 103 $(DESTDIR)$(libdir)/%.so: lib/%.so
 104         install -D -m 755 $< $@
 105
 106 $(DESTDIR)$(libdir)/%: lib/%
 107         install -D -m 644 $< $@
 108
 109 $(DESTDIR)$(includedir)/%: include/%
 110         install -D -m 644 $< $@
 111
 112 $(DESTDIR)$(LDSO_PATHNAME): lib/libc.so
 113         ln -sf $(libdir)/libc.so $@ || true
 114
 115 .PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
 116
 117 .PHONY: all clean install