Makefile 3.6 KB

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  1. # Makefile for uClibc
  2. #
  3. # Copyright (C) 2000 by Lineo, inc.
  4. # Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org>
  5. #
  6. # This program is free software; you can redistribute it and/or modify it under
  7. # the terms of the GNU Library General Public License as published by the Free
  8. # Software Foundation; either version 2 of the License, or (at your option) any
  9. # later version.
  10. #
  11. # This program is distributed in the hope that it will be useful, but WITHOUT
  12. # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13. # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
  14. # details.
  15. #
  16. # You should have received a copy of the GNU Library General Public License
  17. # along with this program; if not, write to the Free Software Foundation, Inc.,
  18. # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19. #
  20. # Derived in part from the Linux-8086 C library, the GNU C Library, and several
  21. # other sundry sources. Files within this library are copyright by their
  22. # respective copyright holders.
  23. TOPDIR=../../
  24. include $(TOPDIR)Rules.mak
  25. DIRS:=
  26. CSRC=execl.c execlp.c execv.c execvep.c execvp.c execle.c \
  27. sleep.c usleep.c getpass.c sysconf_src.c getlogin.c \
  28. fpathconf.c confstr.c pathconf.c swab.c usershell.c \
  29. getopt.c
  30. ifeq ($(strip $(HAS_MMU)),true)
  31. CSRC+=daemon.c
  32. endif
  33. # TESTING -- comment this out if it breaks for you
  34. ifeq ($(TARGET_ARCH), $(NATIVE_ARCH))
  35. SYSCONF = sysconf_native
  36. else
  37. SYSCONF = sysconf_$(TARGET_ARCH).c
  38. endif
  39. COBJS=$(patsubst %.c,%.o, $(CSRC))
  40. OBJS=$(COBJS)
  41. all: $(SYSCONF) $(OBJS) $(LIBC)
  42. $(LIBC): ar-target subdirs
  43. ar-target: $(OBJS)
  44. $(AR) $(ARFLAGS) $(LIBC) $(OBJS)
  45. # We are cross-compiling so use the generic sysconf.c.
  46. sysconf_$(TARGET_ARCH).c: sysconf.c
  47. @echo warning: sysconf_$(NATIVE_ARCH).c is older then sysconf.c so using generic sysconf.c
  48. @echo To build sysconf_$(NATIVE_ARCH).c run gen_sysconf \> sysconf_$(NATIVE_ARCH).c on
  49. @echo your target platform, place in the unistd directory, and rebuild
  50. cp -f sysconf.c sysconf_$(TARGET_ARCH).c
  51. # We are compiling for the native platform, so build an optimized sysconf.c.
  52. getpagesize_tester.o:
  53. $(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH \
  54. -c ../sysdeps/linux/common/getpagesize.c -o getpagesize_tester.o
  55. sysconf_tester.o: sysconf.c
  56. $(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH -c sysconf.c \
  57. -o sysconf_tester.o
  58. gen_sysconf_tester.o: sysconf_tester.o getpagesize_tester.o
  59. @ld -r -o gen_sysconf_tester.o sysconf_tester.o getpagesize_tester.o
  60. @if nm -s gen_sysconf_tester.o | grep -v "U errno" | grep " U "; then \
  61. set -e -x; \
  62. echo warning: missing symbols in gen_sysconf_tester.o so using generic sysconf.c ;\
  63. cp -f sysconf.c sysconf_src.c ;\
  64. else \
  65. set -e -x; \
  66. if ../extra/gcc-uClibc/gcc-uClibc-$(NATIVE_ARCH) -static \
  67. -D_UCLIBC_GENERATE_SYSCONF_MAIN sysconf.c sysconf_tester.o \
  68. -o gen_sysconf && ./gen_sysconf > sysconf_$(NATIVE_ARCH).c ;\
  69. then \
  70. echo successfully built sysconf_$(NATIVE_ARCH).c ;\
  71. else \
  72. echo warning: build of gen_sysconf failed so using generic sysconf.c ;\
  73. cp -f sysconf.c sysconf_$(NATIVE_ARCH).c ;\
  74. fi ;\
  75. fi
  76. sysconf_native: gen_sysconf_tester.o
  77. sysconf_src.c: sysconf_$(TARGET_ARCH).c
  78. cp -f sysconf_$(TARGET_ARCH).c sysconf_src.c
  79. $(COBJS): %.o : %.c
  80. $(CC) $(CFLAGS) -c $< -o $@
  81. $(STRIPTOOL) -x -R .note -R .comment $*.o
  82. $(OBJ): Makefile
  83. subdirs: $(patsubst %, _dir_%, $(DIRS))
  84. subdirs_clean: $(patsubst %, _dirclean_%, $(DIRS))
  85. $(patsubst %, _dir_%, $(DIRS)) : dummy
  86. $(MAKE) -C $(patsubst _dir_%, %, $@)
  87. $(patsubst %, _dirclean_%, $(DIRS)) : dummy
  88. $(MAKE) -C $(patsubst _dirclean_%, %, $@) clean
  89. .PHONY: dummy sysconf_native
  90. dummy:
  91. clean:
  92. rm -f *.[oa] *~ core gen_sysconf sysconf_*.c