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
  18 SRCS = $(sort $(wildcard src/*/*.c))
  19 OBJS = $(SRCS:.c=.o)
  20 LOBJS = $(OBJS:.o=.lo)
  21 GENH = include/bits/alltypes.h
  22
  23 CFLAGS  = -Os -nostdinc -ffreestanding -std=c99 -D_XOPEN_SOURCE=700 -pipe
  24 LDFLAGS = -nostdlib -shared -fPIC -Wl,-e,_start -Wl,-Bsymbolic-functions
  25 INC     = -I./include -I./src/internal -I./arch/$(ARCH)
  26 PIC     = -fPIC -O3
  27 AR      = $(CROSS_COMPILE)ar
  28 RANLIB  = $(CROSS_COMPILE)ranlib
  29 OBJCOPY = $(CROSS_COMPILE)objcopy
  30
  31 ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH))
  32
  33 EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
  34 EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
  35 CRT_LIBS = lib/crt1.o lib/crti.o lib/crtn.o
  36 LIBC_LIBS = lib/libc.a
  37 ALL_LIBS = $(LIBC_LIBS) $(CRT_LIBS) $(EMPTY_LIBS)
  38
  39 ALL_TOOLS = tools/musl-gcc
  40
  41 -include config.mak
  42
  43 all: $(ALL_LIBS) $(ALL_TOOLS)
  44
  45 install: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)
  46
  47 clean:
  48         rm -f crt/*.o
  49         rm -f $(OBJS)
  50         rm -f $(LOBJS)
  51         rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
  52         rm -f $(ALL_TOOLS)
  53         rm -f $(GENH)
  54         rm -f include/bits
  55
  56 include/bits:
  57         @test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
  58         ln -sf ../arch/$(ARCH)/bits $@
  59
  60 include/bits/alltypes.h.sh: include/bits
  61
  62 include/bits/alltypes.h: include/bits/alltypes.h.sh
  63         sh $< > $@
  64
  65 %.o: $(ARCH)/%.s
  66         $(CC) $(CFLAGS) $(INC) -c -o $@ $<
  67
  68 %.o: %.c $(GENH)
  69         $(CC) $(CFLAGS) $(INC) -c -o $@ $<
  70
  71 %.lo: $(ARCH)/%.s
  72         $(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
  73
  74 %.lo: %.c $(GENH)
  75         $(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
  76
  77 lib/libc.so: $(LOBJS)
  78         $(CC) $(LDFLAGS) -o $@ $(LOBJS) -lgcc
  79         $(OBJCOPY) --weaken $@
  80
  81 lib/libc.a: $(OBJS)
  82         rm -f $@
  83         $(AR) rc $@ $(OBJS)
  84         $(RANLIB) $@
  85
  86 $(EMPTY_LIBS):
  87         rm -f $@
  88         $(AR) rc $@
  89
  90 lib/%.o: crt/%.o
  91         cp $< $@
  92
  93 tools/musl-gcc: tools/gen-musl-gcc.sh config.mak
  94         sh $< "$(prefix)" > $@ || { rm -f $@ ; exit 1 ; }
  95         chmod +x $@
  96
  97 $(DESTDIR)$(bindir)/%: tools/%
  98         install -D $< $@
  99
 100 $(DESTDIR)$(prefix)/%: %
 101         install -D -m 644 $< $@
 102
 103 .PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
 104
 105 .PHONY: all clean install