Rules.mak 4.5 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) 2000,2001 Erik Andersen <andersee@debian.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. #
  24. include $(TOPDIR)Config
  25. MAJOR_VERSION=0
  26. MINOR_VERSION=9.9
  27. VERSION=$(MAJOR_VERSION).$(MINOR_VERSION)
  28. LIBNAME=libc.a
  29. SHARED_FULLNAME=libuClibc-$(MAJOR_VERSION).$(MINOR_VERSION).so
  30. SHARED_MAJORNAME=libc.so.$(MAJOR_VERSION)
  31. UCLIBC_LDSO=ld-uClibc.so.$(MAJOR_VERSION)
  32. LIBC=$(TOPDIR)libc/libc.a
  33. BUILDTIME = ${shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z"}
  34. GCCINCDIR = ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
  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 $(CC) -malign-functions=0 -malign-jumps=0 -malign-loops=0 \
  72. -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo \
  73. "-malign-functions=0 -malign-jumps=0 -malign-loops=0"; fi}
  74. CPUFLAGS+=-pipe
  75. else
  76. CPUFLAGS+=-pipe
  77. endif
  78. endif
  79. ARFLAGS=r
  80. CFLAGS=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) \
  81. -nostdinc -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D_LIBC $(ARCH_CFLAGS)
  82. NATIVE_CFLAGS=-O2 -Wall
  83. ifeq ($(strip $(DODEBUG)),true)
  84. CFLAGS += -g
  85. LDFLAGS = -shared --warn-common --warn-once -z combreloc
  86. STRIPTOOL = /bin/true -Since_we_are_debugging
  87. else
  88. CFLAGS += -DNDEBUG #-fomit-frame-pointer
  89. LDFLAGS = -s -shared --warn-common --warn-once -z combreloc
  90. endif
  91. ifeq ($(strip $(HAVE_SHARED)),true)
  92. DOPIC=true
  93. LIBRARY_CACHE=#-DUSE_CACHE
  94. ifeq ($(strip $(BUILD_UCLIBC_LDSO)),true)
  95. LDSO=$(TOPDIR)lib/$(UCLIBC_LDSO)
  96. DYNAMIC_LINKER=$(SHARED_LIB_LOADER_PATH)/$(UCLIBC_LDSO)
  97. BUILD_DYNAMIC_LINKER=${shell cd $(TOPDIR)lib && pwd}/$(UCLIBC_LDSO)
  98. else
  99. LDSO=$(SYSTEM_LDSO)
  100. BUILD_UCLIBC_LDSO=false
  101. DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
  102. BUILD_DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
  103. endif
  104. endif
  105. ifeq ($(strip $(DOPIC)),true)
  106. CFLAGS += -fPIC
  107. endif
  108. # TARGET_PREFIX is the directory under which which the uClibc runtime
  109. # environment will be installed and used on the target system. The
  110. # result will look something like the following:
  111. # TARGET_PREFIX/
  112. # lib/ <contains all runtime and static libs>
  113. # usr/lib/ <this directory is searched for runtime libs>
  114. # etc/ <weher the shared library cache and configuration
  115. # information go if you enabled LIBRARY_CACHE above>
  116. # Very few people will need to change this value from the default...
  117. TARGET_PREFIX = /