Makefile 4.7 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)
  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. $(LIBNAME) shared_$(LIBNAME) ar-target: subdirs
  49. $(RM) $(LIBNAME) shared_$(LIBNAME)
  50. objs=`cat obj.*` ; \
  51. $(AR) $(ARFLAGS) $(LIBNAME) $$objs && \
  52. $(AR) dN 2 $(LIBNAME) $$objs && \
  53. $(AR) dN 2 $(LIBNAME) $$objs
  54. @for objfile in obj.signal \
  55. obj.string.generic obj.string.$(TARGET_ARCH) obj.string \
  56. obj.sysdeps.common obj.sysdeps.$(TARGET_ARCH) ; do \
  57. if [ -e $$objfile ] ; then \
  58. if [ "$(MAKE_IS_SILENT)" = "n" ] ; then \
  59. echo $(AR) $(ARFLAGS) $(LIBNAME) $$objfile ; \
  60. fi ; \
  61. objs=`cat $$objfile` ; \
  62. fi ; \
  63. $(AR) $(ARFLAGS) $(LIBNAME) $$objs || exit 1 ; \
  64. done
  65. cp $(LIBNAME) shared_$(LIBNAME)
  66. $(AR) $(ARFLAGS) $(LIBNAME) misc/internals/static.o
  67. $(RANLIB) $(LIBNAME)
  68. $(LIBNAME_TARGET): $(LIBNAME)
  69. $(INSTALL) -d $(TOPDIR)lib
  70. $(RM) $(TOPDIR)lib/$(LIBNAME)
  71. $(INSTALL) -m 644 $(LIBNAME) $(TOPDIR)lib
  72. shared: shared_$(LIBNAME)
  73. $(LD) $(LDFLAGS) $(VERSION_SCRIPT) -soname=$(SHARED_MAJORNAME) -o $(SHARED_FULLNAME) \
  74. --whole-archive shared_$(LIBNAME) \
  75. $(TOPDIR)libc/misc/internals/interp.o --no-whole-archive \
  76. -init __uClibc_init $(TOPDIR)lib/$(UCLIBC_LDSO) $(LIBGCC) $(LDADD_LIBFLOAT)
  77. $(INSTALL) -d $(TOPDIR)lib
  78. $(RM) $(TOPDIR)lib/$(SHARED_FULLNAME)
  79. $(INSTALL) -m 644 $(SHARED_FULLNAME) $(TOPDIR)lib
  80. $(LN) -sf $(SHARED_FULLNAME) $(TOPDIR)lib/$(SHARED_MAJORNAME)
  81. $(AR) $(ARFLAGS) $(TOPDIR)lib/$(NONSHARED_LIBNAME) `cat nonshared_obj.*`
  82. $(RANLIB) $(TOPDIR)lib/$(NONSHARED_LIBNAME)
  83. echo "/* GNU ld script" > $(TOPDIR)lib/libc.so
  84. echo " * Use the shared library, but some functions are only in" >> $(TOPDIR)lib/libc.so
  85. echo " * the static library, so try that secondarily. */" >> $(TOPDIR)lib/libc.so
  86. #OUT_FORMAT:=$(shell $(LD) --verbose | grep OUTPUT_FORMAT | awk -F '"' '{print $2}')
  87. #echo "OUTPUT_FORMAT($(OUT_FORMAT))" >> $(TOPDIR)lib/libc.so
  88. ifeq ($(strip $(COMPAT_ATEXIT)),y)
  89. echo "GROUP ( $(TOPDIR)lib/$(NONSHARED_LIBNAME) $(TOPDIR)lib/$(SHARED_MAJORNAME) )" >> $(TOPDIR)lib/libc.so
  90. else
  91. echo "GROUP ( $(TOPDIR)lib/$(SHARED_MAJORNAME) $(TOPDIR)lib/$(NONSHARED_LIBNAME) )" >> $(TOPDIR)lib/libc.so
  92. endif
  93. halfclean:
  94. $(RM) $(LIBNAME) shared_$(LIBNAME) $(SHARED_FULLNAME)
  95. tags:
  96. ctags -R
  97. clean: subdirs_clean halfclean
  98. $(RM) obj.* nonshared_obj.*
  99. subdirs: $(patsubst %, _dir_%, $(DIRS))
  100. subdirs_clean: $(patsubst %, _dirclean_%, $(DIRS))
  101. $(patsubst %, _dir_%, $(DIRS)) : dummy
  102. $(MAKE) -C $(patsubst _dir_%, %, $@)
  103. $(patsubst %, _dirclean_%, $(DIRS)) : dummy
  104. $(MAKE) -C $(patsubst _dirclean_%, %, $@) clean
  105. .PHONY: dummy subdirs