Makefile 3.9 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. #--------------------------------------------------------
  24. #
  25. #There are a number of configurable options in "Config"
  26. #
  27. #--------------------------------------------------------
  28. TOPDIR=../
  29. include $(TOPDIR)Rules.mak
  30. DIRS = misc pwd_grp stdio string termios inet signal stdlib sysdeps unistd
  31. # Check if the target architecture has a version script for
  32. # libc, and if so, include it when linking.
  33. VERSION_SCRIPT:=${shell if [ -f sysdeps/linux/$(TARGET_ARCH)/libc.map ] ; then \
  34. echo "--version-script sysdeps/linux/$(TARGET_ARCH)/libc.map"; fi}
  35. LIBNAME_TARGET:=$(TOPDIR)lib/$(LIBNAME)
  36. all: halfclean $(LIBNAME_TARGET) $(DO_SHARED)
  37. # Some functions are duplicated across subdirs, and when you pass $(AR)
  38. # the same object file more than once, it'll add it to the archive multiple
  39. # times (boo!). So what we do here is:
  40. # - import all the objects (thus we may have dupes)
  41. # - delete all the dupes
  42. # - re-import certain objects based upon preference
  43. # - the sysdeps dir should override all other symbols for example
  44. # We need to use shell globbing with obj.* because if we use make's wildcard,
  45. # the wildcard will be evaluated when `make` is run instead of when the make
  46. # target is evaluated. That means if you run `rm obj.* ; make`, the wildcard
  47. # will evaluate to no files :(.
  48. $(LIBNAME) ar-target: subdirs
  49. objs=`cat obj.*` ; \
  50. $(AR) $(ARFLAGS) $(LIBNAME) $$objs && \
  51. $(AR) dN 2 $(LIBNAME) $$objs && \
  52. $(AR) dN 2 $(LIBNAME) $$objs
  53. @for objfile in obj.signal \
  54. obj.string.generic obj.string.$(TARGET_ARCH) obj.string \
  55. obj.sysdeps.common obj.sysdeps.$(TARGET_ARCH) ; do \
  56. if [ -e $$objfile ] ; then \
  57. echo $(AR) $(ARFLAGS) $(LIBNAME) $$objfile ; \
  58. objs=`cat $$objfile` ; \
  59. fi ; \
  60. $(AR) $(ARFLAGS) $(LIBNAME) $$objs || exit 1 ; \
  61. done
  62. $(RANLIB) $(LIBNAME)
  63. $(LIBNAME_TARGET): $(LIBNAME)
  64. $(INSTALL) -d $(TOPDIR)lib
  65. $(RM) $(TOPDIR)lib/$(LIBNAME)
  66. $(INSTALL) -m 644 $(LIBNAME) $(TOPDIR)lib
  67. shared: $(LIBNAME)
  68. $(LD) $(LDFLAGS) $(VERSION_SCRIPT) -soname=$(SHARED_MAJORNAME) -o $(SHARED_FULLNAME) \
  69. --whole-archive $(LIBNAME) \
  70. $(TOPDIR)libc/misc/internals/interp.o --no-whole-archive \
  71. -init __uClibc_init $(LIBGCC) $(LDADD_LIBFLOAT)
  72. @true #$(RM) -r tmp
  73. $(INSTALL) -d $(TOPDIR)lib
  74. $(RM) $(TOPDIR)lib/$(SHARED_FULLNAME)
  75. $(INSTALL) -m 644 $(SHARED_FULLNAME) $(TOPDIR)lib
  76. $(LN) -sf $(SHARED_FULLNAME) $(TOPDIR)lib/libc.so
  77. $(LN) -sf $(SHARED_FULLNAME) $(TOPDIR)lib/$(SHARED_MAJORNAME)
  78. halfclean:
  79. @$(RM) $(LIBNAME) uClibc_config.h
  80. @$(RM) $(SHARED_FULLNAME) $(SHARED_MAJORNAME) uClibc-0.* libc.so*
  81. tags:
  82. ctags -R
  83. clean: subdirs_clean halfclean
  84. @$(RM) -r tmp
  85. $(RM) include/asm include/linux include/bits
  86. $(RM) obj.*
  87. subdirs: $(patsubst %, _dir_%, $(DIRS))
  88. subdirs_clean: $(patsubst %, _dirclean_%, $(DIRS))
  89. $(patsubst %, _dir_%, $(DIRS)) : dummy
  90. $(MAKE) -C $(patsubst _dir_%, %, $@)
  91. $(patsubst %, _dirclean_%, $(DIRS)) : dummy
  92. $(MAKE) -C $(patsubst _dirclean_%, %, $@) clean
  93. .PHONY: dummy subdirs