Rules.mak 4.7 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 $(TOPDIR)Config
  25. MAJOR_VERSION=0
  26. MINOR_VERSION=9.8
  27. VERSION=$(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 = ${shell uname -m | sed -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \
  36. -e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g' \
  37. -e 's/v850.*/v850/g'}
  38. ifeq ($(strip $(TARGET_ARCH)),)
  39. TARGET_ARCH=${shell $(CC) -dumpmachine | sed -e s'/-.*//' -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \
  40. -e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g' \
  41. -e 's/v850.*/v850/g'}
  42. endif
  43. # Some nice architecture specific optimizations
  44. ifndef OPTIMIZATION
  45. # use '-Os' optimization if available, else use -O2, allow Config to override
  46. OPTIMIZATION += ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
  47. then echo "-Os"; else echo "-O2" ; fi}
  48. OPTIMIZATION += ${shell if $(CC) -falign-functions=1 -S -o /dev/null -xc \
  49. /dev/null >/dev/null 2>&1; then echo "-falign-functions=1"; fi}
  50. ifeq ($(strip $(TARGET_ARCH)),arm)
  51. OPTIMIZATION+=-fstrict-aliasing
  52. endif
  53. ifeq ($(strip $(TARGET_ARCH)),i386)
  54. OPTIMIZATION+=-march=i386
  55. OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \
  56. /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi}
  57. OPTIMIZATION += ${shell if $(CC) -malign-functions=0 -malign-jumps=0 -malign-loops=0 \
  58. -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo \
  59. "-malign-functions=0 -malign-jumps=0 -malign-loops=0"; fi}
  60. CPUFLAGS+=-pipe
  61. else
  62. CPUFLAGS+=-pipe
  63. endif
  64. endif
  65. ARFLAGS=r
  66. CCFLAGS=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D_LIBC
  67. TARGET_CCFLAGS=--uclibc-use-build-dir $(WARNINGS) $(OPTIMIZATION) $(CPUFLAGS)
  68. CFLAGS=$(ARCH_CFLAGS) $(CCFLAGS) $(DEFS) $(ARCH_CFLAGS2)
  69. TARGET_CC= $(TOPDIR)extra/gcc-uClibc/$(TARGET_ARCH)-uclibc-gcc
  70. TARGET_CFLAGS=$(ARCH_CFLAGS) $(TARGET_CCFLAGS) $(DEFS) $(ARCH_CFLAGS2)
  71. NATIVE_CFLAGS=-O2 -Wall
  72. ifeq ($(strip $(DODEBUG)),true)
  73. CFLAGS += -g
  74. TARGET_CFLAGS += -g
  75. LDFLAGS = -nostdlib -Wl,-warn-common
  76. TARGET_LDFLAGS = --uclibc-use-build-dir -Wl,-warn-common
  77. STRIPTOOL = /bin/true -Since_we_are_debugging
  78. else
  79. CFLAGS += -DNDEBUG #-fomit-frame-pointer
  80. TARGET_CFLAGS += -DNDEBUG #-fomit-frame-pointer
  81. LDFLAGS = -s -nostdlib -Wl,-warn-common
  82. TARGET_LDFLAGS = --uclibc-use-build-dir -s -Wl,-warn-common
  83. endif
  84. ifeq ($(strip $(DOPIC)),true)
  85. CFLAGS += -fPIC
  86. TARGET_CFLAGS += -fPIC
  87. endif
  88. ifeq ($(strip $(HAVE_SHARED)),true)
  89. LIBRARY_CACHE=#-DUSE_CACHE
  90. ifeq ($(strip $(BUILD_UCLIBC_LDSO)),true)
  91. LDSO=$(TOPDIR)lib/$(UCLIBC_LDSO)
  92. DYNAMIC_LINKER=$(SHARED_LIB_LOADER_PATH)/$(UCLIBC_LDSO)
  93. BUILD_DYNAMIC_LINKER=${shell cd $(TOPDIR)lib && pwd}/$(UCLIBC_LDSO)
  94. else
  95. LDSO=$(SYSTEM_LDSO)
  96. DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
  97. BUILD_DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
  98. endif
  99. endif
  100. # TARGET_PREFIX is the directory under which which the uClibc runtime
  101. # environment will be installed and used on the target system. The
  102. # result will look something like the following:
  103. # TARGET_PREFIX/
  104. # lib/ <contains all runtime and static libs>
  105. # usr/lib/ <this directory is searched for runtime libs>
  106. # etc/ <weher the shared library cache and configuration
  107. # information go if you enabled LIBRARY_CACHE above>
  108. # Very few people will need to change this value from the default...
  109. TARGET_PREFIX = /