Rules.mak 4.6 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. # Some nice architecture specific optimizations
  58. ifndef OPTIMIZATION
  59. # use '-Os' optimization if available, else use -O2, allow Config to override
  60. OPTIMIZATION:= ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
  61. then echo "-Os"; else echo "-O2" ; fi}
  62. OPTIMIZATION+= ${shell if $(CC) -falign-functions=1 -S -o /dev/null -xc \
  63. /dev/null >/dev/null 2>&1; then echo "-falign-functions=1"; fi}
  64. ifeq ($(strip $(TARGET_ARCH)),arm)
  65. OPTIMIZATION+=-fstrict-aliasing
  66. endif
  67. ifeq ($(strip $(TARGET_ARCH)),i386)
  68. OPTIMIZATION+=-march=i386
  69. OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \
  70. /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi}
  71. OPTIMIZATION += ${shell if $(CC) -falign-jumps=0 -falign-loops=0 \
  72. -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo \
  73. "-falign-jumps=0 -falign-loops=0"; fi}
  74. endif
  75. endif
  76. ARFLAGS:=r
  77. CFLAGS:=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) \
  78. -I$(TOPDIR)include -iwithprefix include -I. -D_LIBC $(ARCH_CFLAGS)
  79. NATIVE_CFLAGS:=-O2 -Wall
  80. ifeq ($(strip $(DODEBUG)),true)
  81. CFLAGS += -g
  82. LDFLAGS:= -shared --warn-common --warn-once -z combreloc
  83. STRIPTOOL:= /bin/true -Since_we_are_debugging
  84. else
  85. CFLAGS += -DNDEBUG #-fomit-frame-pointer
  86. LDFLAGS := -s -shared --warn-common --warn-once -z combreloc
  87. endif
  88. ifeq ($(strip $(HAVE_SHARED)),true)
  89. DOPIC:=true
  90. LIBRARY_CACHE:=#-DUSE_CACHE
  91. ifeq ($(strip $(BUILD_UCLIBC_LDSO)),true)
  92. LDSO:=$(TOPDIR)lib/$(UCLIBC_LDSO)
  93. DYNAMIC_LINKER:=$(SHARED_LIB_LOADER_PATH)/$(UCLIBC_LDSO)
  94. BUILD_DYNAMIC_LINKER:=${shell cd $(TOPDIR)lib && pwd}/$(UCLIBC_LDSO)
  95. else
  96. LDSO:=$(SYSTEM_LDSO)
  97. BUILD_UCLIBC_LDSO:=false
  98. DYNAMIC_LINKER:=/lib/$(notdir $(SYSTEM_LDSO))
  99. BUILD_DYNAMIC_LINKER:=/lib/$(notdir $(SYSTEM_LDSO))
  100. endif
  101. endif
  102. ifeq ($(strip $(DOPIC)),true)
  103. CFLAGS += -fPIC
  104. endif
  105. ifeq ($(strip $(INCLUDE_THREADS)),true)
  106. CFLAGS += -D_LIBC_REENTRANT
  107. endif
  108. # Locale support is required for wide char support.
  109. ifneq ($(strip $(HAS_LOCALE)),true)
  110. HAS_WCHAR:=false
  111. endif
  112. # TARGET_PREFIX is the directory under which which the uClibc runtime
  113. # environment will be installed and used on the target system. The
  114. # result will look something like the following:
  115. # TARGET_PREFIX/
  116. # lib/ <contains all runtime and static libs>
  117. # usr/lib/ <this directory is searched for runtime libs>
  118. # etc/ <weher the shared library cache and configuration
  119. # information go if you enabled LIBRARY_CACHE above>
  120. # Very few people will need to change this value from the default...
  121. TARGET_PREFIX = /