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annotate maintainers_add_the_linux_kbuilddir_finder.patch @ 49:0c55f24c6b3d

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Add a series of patch related to the build systme
author Louis Opter <louis@lse.epitech.net>
date Sun, 15 Jan 2012 21:36:15 +0100
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1 # HG changeset patch
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2 # Parent 6682d6e4330ef0429c41af6dcbe0362ff15d9841
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3 maintainers: add a CMake finder for the Linux build tree and only build the e1000 sample if it is found
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4
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5 diff --git a/CMakeLists.txt b/CMakeLists.txt
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6 --- a/CMakeLists.txt
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7 +++ b/CMakeLists.txt
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8 @@ -29,12 +29,17 @@
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9
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10 FIND_PACKAGE(LATEX)
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11 FIND_PACKAGE(CodeWorker REQUIRED)
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12 +FIND_PACKAGE(LinuxKBuildDir)
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13
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14 INCLUDE(AddFileDependencies)
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15 INCLUDE(FileCopy)
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16 INCLUDE(RathaxesCopyLatexClasses)
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17 INCLUDE(UseRathaxes)
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18
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19 +IF (CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT LINUX_KBUILD_DIR)
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20 + MESSAGE(STATUS "No valid Linux build tree found, kernel modules will not be built")
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21 +ENDIF (CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT LINUX_KBUILD_DIR)
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22 +
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23 # Global definitions ###########################################################
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24
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25 ENABLE_TESTING()
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26 diff --git a/maintainers/CMakeScripts/FindLinuxKBuildDir.cmake b/maintainers/CMakeScripts/FindLinuxKBuildDir.cmake
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27 new file mode 100644
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28 --- /dev/null
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29 +++ b/maintainers/CMakeScripts/FindLinuxKBuildDir.cmake
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30 @@ -0,0 +1,41 @@
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31 +# Check if the kernel build directory exists
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32 +#
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33 +# This finder will seek for the usual /lib/modules/`uname -r`/build/
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34 +# directory. Obviously, this is Linux specific.
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35 +#
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36 +# You can specify an alternate build directory by using the environment
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37 +# variable LINUX_KBUILD_DIR.
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38 +#
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39 +# This is necessary to build Linux kernel modules!
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40 +#
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41 +# Usage: FIND_PACKAGE(LinuxKBuildDir [REQUIRED])
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42 +#
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43 +# This will set the variable LINUX_KBUILD_DIR with the path to the KBuild
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44 +# directory, if it is found.
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45 +
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46 +IF (NOT LINUX_KBUILD_DIR)
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47 + IF ($ENV{LINUX_KBUILD_DIR})
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48 + SET(KDIR $ENV{LINUX_KBUILD_DIR})
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49 + ELSE ($ENV{LINUX_KBUILD_DIR})
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50 + SET(KDIR "/lib/modules/${CMAKE_SYSTEM_VERSION}/build/")
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51 + ENDIF ($ENV{LINUX_KBUILD_DIR})
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52 +
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53 + IF (IS_DIRECTORY "${KDIR}")
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54 + FIND_FILE(LINUX_KBUILD_DIR_MAKEFILE "Makefile"
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55 + PATHS "${KDIR}"
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56 + # Restrict the search to this directory only:
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57 + NO_DEFAULT_PATH
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58 + NO_CMAKE_ENVIRONMENT_PATH
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59 + NO_CMAKE_PATH
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60 + NO_SYSTEM_ENVIRONMENT_PATH
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61 + NO_CMAKE_SYSTEM_PATH)
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62 + # Check if it looks legit:
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63 + IF (LINUX_KBUILD_DIR_MAKEFILE)
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64 + SET(LINUX_KBUILD_DIR "${KDIR}" CACHE PATH "Path to the Linux KBuild directory (usually /lib/modules/`uname -r`/build/)")
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65 + ENDIF (LINUX_KBUILD_DIR_MAKEFILE)
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66 + ENDIF (IS_DIRECTORY "${KDIR}")
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67 +ENDIF (NOT LINUX_KBUILD_DIR)
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68 +
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69 +INCLUDE(FindPackageHandleStandardArgs)
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70 +
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71 +FIND_PACKAGE_HANDLE_STANDARD_ARGS(LinuxKBuildDir DEFAULT_MSG LINUX_KBUILD_DIR)
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72 diff --git a/rathaxes/samples/e1000/CMakeLists.txt b/rathaxes/samples/e1000/CMakeLists.txt
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73 --- a/rathaxes/samples/e1000/CMakeLists.txt
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74 +++ b/rathaxes/samples/e1000/CMakeLists.txt
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75 @@ -2,10 +2,6 @@
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76 RTI log.rti lkm.rti pci.rti socket.rti ethernet.rti e1000.rti
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77 BLT log.blt lkm.blt pci.blt socket.blt ethernet.blt e1000.blt)
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78
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79 -# We can't name lkm since it's already used as the target name to generate the
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80 -# source (with ADD_RATHAXES_SOURCES).
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81 -
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82 -# does not work atm
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83 -IF (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
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84 - ADD_RATHAXES_LKM(e1000 e1000_src)
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85 -ENDIF (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
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86 +IF (LINUX_KBUILD_DIR)
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87 + ADD_RATHAXES_LKM(e1000 e1000_src)
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88 +ENDIF (LINUX_KBUILD_DIR)