Rules.mak 4.4 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124
  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 $(TOPDIR)Config
  25. MAJOR_VERSION=0
  26. MINOR_VERSION=9.8
  27. VERSION=$(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 = ${shell uname -m | sed \
  36. -e 's/i.86/i386/' \
  37. -e 's/sparc.*/sparc/' \
  38. -e 's/arm.*/arm/g' \
  39. -e 's/m68k.*/m68k/' \
  40. -e 's/ppc/powerpc/g' \
  41. -e 's/v850.*/v850/g' \
  42. -e 's/sh[234]/sh/' \
  43. }
  44. ifeq ($(strip $(TARGET_ARCH)),)
  45. TARGET_ARCH=${shell $(CC) -dumpmachine | sed -e s'/-.*//' \
  46. -e 's/i.86/i386/' \
  47. -e 's/sparc.*/sparc/' \
  48. -e 's/arm.*/arm/g' \
  49. -e 's/m68k.*/m68k/' \
  50. -e 's/ppc/powerpc/g' \
  51. -e 's/v850.*/v850/g' \
  52. -e 's/sh[234]/sh/' \
  53. }
  54. endif
  55. # Some nice architecture specific optimizations
  56. ifndef OPTIMIZATION
  57. # use '-Os' optimization if available, else use -O2, allow Config to override
  58. OPTIMIZATION += ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
  59. then echo "-Os"; else echo "-O2" ; fi}
  60. OPTIMIZATION += ${shell if $(CC) -falign-functions=1 -S -o /dev/null -xc \
  61. /dev/null >/dev/null 2>&1; then echo "-falign-functions=1"; fi}
  62. ifeq ($(strip $(TARGET_ARCH)),arm)
  63. OPTIMIZATION+=-fstrict-aliasing
  64. endif
  65. ifeq ($(strip $(TARGET_ARCH)),i386)
  66. OPTIMIZATION+=-march=i386
  67. OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \
  68. /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi}
  69. OPTIMIZATION += ${shell if $(CC) -malign-functions=0 -malign-jumps=0 -malign-loops=0 \
  70. -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo \
  71. "-malign-functions=0 -malign-jumps=0 -malign-loops=0"; fi}
  72. CPUFLAGS+=-pipe
  73. else
  74. CPUFLAGS+=-pipe
  75. endif
  76. endif
  77. ARFLAGS=r
  78. CFLAGS=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) \
  79. -nostdinc -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D_LIBC $(ARCH_CFLAGS)
  80. NATIVE_CFLAGS=-O2 -Wall
  81. ifeq ($(strip $(DODEBUG)),true)
  82. CFLAGS += -g
  83. LDFLAGS = -shared --warn-common --warn-once -z combreloc
  84. STRIPTOOL = /bin/true -Since_we_are_debugging
  85. else
  86. CFLAGS += -DNDEBUG #-fomit-frame-pointer
  87. LDFLAGS = -s -shared --warn-common --warn-once -z combreloc
  88. endif
  89. ifeq ($(strip $(HAVE_SHARED)),true)
  90. LIBRARY_CACHE=#-DUSE_CACHE
  91. ifeq ($(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=$(SYSTEM_LDSO)
  97. DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
  98. BUILD_DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
  99. endif
  100. endif
  101. ifeq ($(strip $(DOPIC)),true)
  102. CFLAGS += -fPIC -D__PIC__
  103. endif
  104. # TARGET_PREFIX is the directory under which which the uClibc runtime
  105. # environment will be installed and used on the target system. The
  106. # result will look something like the following:
  107. # TARGET_PREFIX/
  108. # lib/ <contains all runtime and static libs>
  109. # usr/lib/ <this directory is searched for runtime libs>
  110. # etc/ <weher the shared library cache and configuration
  111. # information go if you enabled LIBRARY_CACHE above>
  112. # Very few people will need to change this value from the default...
  113. TARGET_PREFIX = /