fix_includes.sh 5.3 KB

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  1. #!/bin/sh
  2. # Copyright (C) 2003 Erik Andersen <andersen@uclibc.org>
  3. #
  4. # This program is free software; you can redistribute it and/or
  5. # modify it under the terms of the GNU Library General Public
  6. # License as published by the Free Software Foundation; either
  7. # version 2 of the License, or (at your option) any later
  8. # version.
  9. #
  10. # This program is distributed in the hope that it will be useful,
  11. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. # GNU Library General Public License for more details.
  14. #
  15. # You should have received a copy of the GNU Library General
  16. # Public License along with this program; if not, write to the
  17. # Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18. # Boston, MA 02111-1307 USA
  19. usage () {
  20. echo ""
  21. echo "usage: "`basename $0`" -k KERNEL_SOURCE_DIRECTORY -t TARGET_ARCH"
  22. echo ""
  23. echo "This utility scans the KERNEL_SOURCE_DIRECTORY directory and"
  24. echo "checks that it contains well formed kernel headers suitable"
  25. echo "for inclusion as the include/linux/ directory provided by"
  26. echo "uClibc."
  27. echo ""
  28. echo "If the specified kernel headers are present and already"
  29. echo "configured for the architecture specified by TARGET_ARCH,"
  30. echo "they will be used as-is."
  31. echo ""
  32. echo "If the specified kernel headers are missing entirely, this"
  33. echo "script will return an error."
  34. echo ""
  35. echo "If the specified kernel headers are present, but are either"
  36. echo "not yet configured or are configured for an architecture"
  37. echo "different than that specified by TARGET_ARCH, this script"
  38. echo "will attempt to 'fix' the kernel headers and make them"
  39. echo "suitable for use by uClibc. This fixing process may fail."
  40. echo "It is therefore best to always provide kernel headers that"
  41. echo "are already configured for the selected architecture."
  42. echo ""
  43. echo "Most Linux distributions provide 'kernel-headers' packages"
  44. echo "that are suitable for use by uClibc."
  45. echo ""
  46. echo ""
  47. exit 1;
  48. }
  49. HAS_MMU="y";
  50. while [ -n "$1" ]; do
  51. case $1 in
  52. -k ) shift; if [ -n "$1" ]; then KERNEL_SOURCE=$1; shift; else usage; fi; ;;
  53. -t ) shift; if [ -n "$1" ]; then TARGET_ARCH=$1; shift; else usage; fi; ;;
  54. -n ) shift; HAS_MMU="n"; ;;
  55. -* ) usage; ;;
  56. * ) usage; ;;
  57. esac;
  58. done;
  59. if [ ! -f "$KERNEL_SOURCE/Makefile" ]; then
  60. echo "";
  61. echo "";
  62. echo "The file $KERNEL_SOURCE/Makefile is missing!";
  63. echo "Perhaps your kernel source is broken?"
  64. echo "";
  65. echo "";
  66. exit 1;
  67. fi;
  68. if [ ! -d "$KERNEL_SOURCE" ]; then
  69. echo "";
  70. echo "";
  71. echo "$KERNEL_SOURCE is not a directory";
  72. echo "";
  73. echo "";
  74. exit 1;
  75. fi;
  76. # set current VERSION, PATCHLEVEL, SUBLEVEL, EXTERVERSION
  77. eval `sed -n -e 's/^\([A-Z]*\) = \([0-9]*\)$/\1=\2/p' -e 's/^\([A-Z]*\) = \(-[-a-z0-9]*\)$/\1=\2/p' $KERNEL_SOURCE/Makefile`
  78. if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
  79. then
  80. echo "Unable to determine version for kernel headers"
  81. echo -e "\tprovided in directory $KERNEL_SOURCE"
  82. exit 1
  83. fi
  84. echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION}"
  85. echo -e "\n"
  86. echo "Using kernel headers from $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} for architecture '$TARGET_ARCH'"
  87. echo -e "\tprovided in directory $KERNEL_SOURCE"
  88. echo -e "\n"
  89. # Create a symlink to include/asm
  90. rm -f include/asm*
  91. if [ ! -d "$KERNEL_SOURCE/include/asm" ]; then
  92. echo "";
  93. echo "";
  94. echo "The symlink $KERNEL_SOURCE/include/asm is missing\!";
  95. echo "Perhaps you forgot to configure your kernel source?";
  96. echo "You really should configure your kernel source tree so I";
  97. echo "do not have to try and guess about this sort of thing.";
  98. echo ""
  99. echo "Attempting to guess a usable value....";
  100. echo ""
  101. echo "";
  102. sleep 1;
  103. if [ "$TARGET_ARCH" = "powerpc" ];then
  104. set -x;
  105. ln -fs $KERNEL_SOURCE/include/asm-ppc include/asm;
  106. set +x;
  107. elif [ "$TARGET_ARCH" = "mips" ];then
  108. set -x;
  109. ln -fs $KERNEL_SOURCE/include/asm-mips include/asm;
  110. set +x;
  111. elif [ "$TARGET_ARCH" = "arm" ];then
  112. set -x;
  113. ln -fs $KERNEL_SOURCE/include/asm-arm include/asm;
  114. set +x;
  115. if [ ! -L $KERNEL_SOURCE/include/asm-arm/proc ] ; then
  116. if [ ! -L proc ] ; then
  117. (cd include/asm;
  118. ln -fs proc-armv proc;
  119. ln -fs arch-ebsa285 arch);
  120. fi
  121. fi;
  122. elif [ "$TARGET_ARCH" = "cris" ]; then
  123. set -x;
  124. ln -fs $KERNEL_SOURCE/include/asm-cris include/asm;
  125. set +x;
  126. elif [ "$HAS_MMU" != "y" ]; then
  127. if [ -d $KERNEL_SOURCE/include/asm-${TARGET_ARCH}nommu ] ; then
  128. set -x;
  129. ln -fs $KERNEL_SOURCE/include/asm-${TARGET_ARCH}nommu include/asm;
  130. set +x;
  131. else
  132. set -x;
  133. ln -fs $KERNEL_SOURCE/include/asm-$TARGET_ARCH include/asm;
  134. set +x;
  135. fi;
  136. else
  137. set -x;
  138. ln -fs $KERNEL_SOURCE/include/asm-$TARGET_ARCH include/asm;
  139. set +x;
  140. fi;
  141. else
  142. # No guessing required.....
  143. ln -fs $KERNEL_SOURCE/include/asm include/asm
  144. fi;
  145. # Annoyingly, 2.6.x kernel headers also need an include/asm-generic/ directory
  146. if [ $VERSION -eq 2 ] && [ $PATCHLEVEL -ge 6 ] ; then
  147. ln -fs $KERNEL_SOURCE/include/asm-generic include/asm-generic
  148. fi;
  149. # Create the include/linux and include/scsi symlinks.
  150. rm -f include/linux
  151. ln -fs $KERNEL_SOURCE/include/linux include/linux
  152. rm -f include/scsi
  153. ln -fs $KERNEL_SOURCE/include/scsi include/scsi