Rules.mak 4.9 KB

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  1. # Rules.make for uClibc
  2. #
  3. # This file contains rules which are shared between multiple Makefiles. All
  4. # normal configuration options live in the file named "Config". You probably
  5. # should not mess with this file unless you know what you are doing...
  6. #
  7. # Copyright (C) 2000 by Lineo, inc.
  8. # Copyright (C) 2000-2002 Erik Andersen <andersen@uclibc.org>
  9. #
  10. # This program is free software; you can redistribute it and/or modify it under
  11. # the terms of the GNU Library General Public License as published by the Free
  12. # Software Foundation; either version 2 of the License, or (at your option) any
  13. # later version.
  14. #
  15. # This program is distributed in the hope that it will be useful, but WITHOUT
  16. # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  17. # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
  18. # details.
  19. #
  20. # You should have received a copy of the GNU Library General Public License
  21. # along with this program; if not, write to the Free Software Foundation, Inc.,
  22. # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23. -include $(TOPDIR)Config
  24. # Be sure to update include/features.h when changing this...
  25. MAJOR_VERSION:=0
  26. MINOR_VERSION:=9
  27. SUBLEVEL:=12
  28. VERSION:=$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL)
  29. LIBNAME:=libc.a
  30. SHARED_FULLNAME:=libuClibc-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
  31. SHARED_MAJORNAME:=libc.so.$(MAJOR_VERSION)
  32. UCLIBC_LDSO:=ld-uClibc.so.$(MAJOR_VERSION)
  33. LIBC:=$(TOPDIR)libc/libc.a
  34. BUILDTIME:= ${shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z"}
  35. NATIVE_ARCH:= ${shell uname -m | sed \
  36. -e 's/i.86/i386/' \
  37. -e 's/sparc.*/sparc/' \
  38. -e 's/arm.*/arm/g' \
  39. -e 's/m68k.*/m68k/' \
  40. -e 's/ppc/powerpc/g' \
  41. -e 's/v850.*/v850/g' \
  42. -e 's/sh[234].*/sh/' \
  43. -e 's/mips.*/mips/' \
  44. }
  45. ifeq ($(strip $(TARGET_ARCH)),)
  46. TARGET_ARCH:=${shell $(CC) -dumpmachine | sed -e s'/-.*//' \
  47. -e 's/i.86/i386/' \
  48. -e 's/sparc.*/sparc/' \
  49. -e 's/arm.*/arm/g' \
  50. -e 's/m68k.*/m68k/' \
  51. -e 's/ppc/powerpc/g' \
  52. -e 's/v850.*/v850/g' \
  53. -e 's/sh[234]/sh/' \
  54. -e 's/mips.*/mips/' \
  55. }
  56. endif
  57. # Ensure consistent filename sort order
  58. LC_COLLATE := C
  59. export LC_COLLATE
  60. ARFLAGS:=r
  61. # Some nice architecture specific optimizations
  62. ifndef OPTIMIZATION
  63. # use '-Os' optimization if available, else use -O2, allow Config to override
  64. OPTIMIZATION:= ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
  65. then echo "-Os"; else echo "-O2" ; fi}
  66. ifeq ($(strip $(TARGET_ARCH)),arm)
  67. OPTIMIZATION+=-fstrict-aliasing
  68. endif
  69. ifeq ($(strip $(TARGET_ARCH)),i386)
  70. OPTIMIZATION+=-march=i386
  71. OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \
  72. /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi}
  73. OPTIMIZATION += ${shell if $(CC) -falign-functions=1 -falign-jumps=0 -falign-loops=0 \
  74. -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo \
  75. "-falign-functions=1 -falign-jumps=0 -falign-loops=0"; else \
  76. if $(CC) -malign-functions=0 -malign-jumps=0 -S -o /dev/null -xc \
  77. /dev/null >/dev/null 2>&1; then echo "-malign-functions=0 -malign-jumps=0"; fi; fi}
  78. endif
  79. endif
  80. # Add a bunch of extra pedantic annoyingly strict checks
  81. WARNINGS+=-Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
  82. CFLAGS:=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) \
  83. -I$(TOPDIR)include -iwithprefix include -I. -D_LIBC $(ARCH_CFLAGS)
  84. NATIVE_CFLAGS:=-O2 -Wall
  85. ifeq ($(strip $(DODEBUG)),true)
  86. CFLAGS += -g
  87. LDFLAGS:= -shared --warn-common --warn-once -z combreloc
  88. STRIPTOOL:= /bin/true -Since_we_are_debugging
  89. else
  90. CFLAGS += -DNDEBUG #-fomit-frame-pointer
  91. LDFLAGS := -s -shared --warn-common --warn-once -z combreloc
  92. endif
  93. ifeq ($(strip $(HAVE_SHARED)),true)
  94. DOPIC:=true
  95. LIBRARY_CACHE:=#-DUSE_CACHE
  96. ifeq ($(strip $(BUILD_UCLIBC_LDSO)),true)
  97. LDSO:=$(TOPDIR)lib/$(UCLIBC_LDSO)
  98. DYNAMIC_LINKER:=$(SHARED_LIB_LOADER_PATH)/$(UCLIBC_LDSO)
  99. BUILD_DYNAMIC_LINKER:=${shell cd $(TOPDIR)lib && pwd}/$(UCLIBC_LDSO)
  100. else
  101. LDSO:=$(SYSTEM_LDSO)
  102. BUILD_UCLIBC_LDSO:=false
  103. DYNAMIC_LINKER:=/lib/$(notdir $(SYSTEM_LDSO))
  104. BUILD_DYNAMIC_LINKER:=/lib/$(notdir $(SYSTEM_LDSO))
  105. endif
  106. endif
  107. ifeq ($(strip $(DOPIC)),true)
  108. CFLAGS += -fPIC
  109. endif
  110. ifeq ($(strip $(INCLUDE_THREADS)),true)
  111. CFLAGS += -D_LIBC_REENTRANT
  112. endif
  113. # Currently locale support requires wide char support.
  114. ifeq ($(strip $(HAS_LOCALE)),true)
  115. HAS_WCHAR:=true
  116. endif
  117. # TARGET_PREFIX is the directory under which which the uClibc runtime
  118. # environment will be installed and used on the target system. The
  119. # result will look something like the following:
  120. # TARGET_PREFIX/
  121. # lib/ <contains all runtime and static libs>
  122. # usr/lib/ <this directory is searched for runtime libs>
  123. # etc/ <weher the shared library cache and configuration
  124. # information go if you enabled LIBRARY_CACHE above>
  125. # Very few people will need to change this value from the default...
  126. TARGET_PREFIX = /