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annotate maintainers_add_add_rathaxes_lkm_in_use_rathaxes_cmake_file.patch @ 15:74d9d18d4732

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WIP on the ethernet part of the LKM sample
author Louis Opter <louis@lse.epitech.net>
date Fri, 06 Jan 2012 22:46:33 +0100
parents 5b128dbd2c17
children
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1 # HG changeset patch
15
74d9d18d4732 WIP on the ethernet part of the LKM sample
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2 # Parent dd92091de0edd583c8dd1ff884b5ca5fcd080c3d
6
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3 maintainers: add the equivalent of ADD_RATHAXES_EXECUTABLE for kernel modules, only support Linux for now
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5 diff --git a/maintainers/CMakeScripts/Templates/MakefileLKM.in b/maintainers/CMakeScripts/Templates/MakefileLKM.in
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6 new file mode 100644
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7 --- /dev/null
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8 +++ b/maintainers/CMakeScripts/Templates/MakefileLKM.in
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9 @@ -0,0 +1,12 @@
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10 +KDIR = /lib/modules/$(shell uname -r)/build
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11 +obj-m := @LKM_OBJECTS@
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12 +
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13 +all:
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14 + $(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) modules
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15 +
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16 +install:
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17 + $(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) modules_install
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18 + depmod -a
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19 +clean:
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20 + rm -rf *~
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21 + $(MAKE) -C $(KDIR) M=$(PWD) clean
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22 diff --git a/maintainers/CMakeScripts/UseRathaxes.cmake b/maintainers/CMakeScripts/UseRathaxes.cmake
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23 --- a/maintainers/CMakeScripts/UseRathaxes.cmake
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24 +++ b/maintainers/CMakeScripts/UseRathaxes.cmake
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25 @@ -114,6 +114,8 @@
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26 "${RATHAXES_SOURCE_DIR}/rathaxes/compiler/rtx*.cw[sp]"
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27 "${RATHAXES_SOURCE_DIR}/rathaxes/compiler/rathaxes.cws")
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28
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29 + # ADD_CUSTOM_COMMAND + ADD_CUSTOM_TARGET is a CMake idiom to add a target
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30 + # that should be rebuilt automatically when its sources change.
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31 STRING(REPLACE ";" ", " SYSTEMS "${SYSTEMS}")
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32 ADD_CUSTOM_COMMAND(OUTPUT ${OUTPUTS}
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33 COMMAND ${_RTX_CODEWORKER_COMMAND} "cache" "clear"
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34 @@ -160,3 +162,51 @@
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35 ADD_EXECUTABLE(${NAME} "${RATHAXES_SOURCE}_${SYSTEM}.c")
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36 ADD_DEPENDENCIES(${NAME} ${RATHAXES_SOURCE})
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37 ENDFUNCTION(ADD_RATHAXES_EXECUTABLE NAME RATHAXES_SOURCE)
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38 +
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39 +# This function build a native kernel module from a previously generated
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40 +# Rathaxes sources. It works by setting up a build directory and calling the
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41 +# native build tools from there.
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42 +#
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43 +# Usage: ADD_RATHAXES_LKM(NAME RATHAXES_SOURCE [SYSTEM])
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44 +#
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45 +# RATHAXES_SOURCE must corresponds to the first argument of a call to
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46 +# ADD_RATHAXES_SOURCES.
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47 +#
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48 +# The third argument SYSTEM may be used if the target system doesn't correspond
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49 +# to CMAKE_SYSTEM_NAME.
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50 +FUNCTION(ADD_RATHAXES_LKM NAME RATHAXES_SOURCE)
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51 + IF (${ARGC} EQUAL 2)
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52 + SET(SYSTEM ${CMAKE_SYSTEM_NAME})
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53 + ELSE (${ARGC} EQUAL 2)
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54 + SET(SYSTEM ${ARGV2})
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55 + ENDIF (${ARGC} EQUAL 2)
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56 +
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57 + IF (${SYSTEM} MATCHES "Linux")
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58 + # Create a little build space for the native Linux build-chain.
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59 + SET(MODULE_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${NAME}.dir/${SYSTEM}Build/")
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60 +
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61 + # Generate the Linux Makefile to build a Linux kernel module
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62 + SET(MODULE_MAKEFILE "${MODULE_BUILD_DIR}/Makefile")
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63 + SET(LKM_OBJECTS "${RATHAXES_SOURCE}_${SYSTEM}.o")
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64 + CONFIGURE_FILE("${RATHAXES_SOURCE_DIR}/maintainers/CMakeScripts/Templates/MakefileLKM.in"
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65 + "${MODULE_MAKEFILE}")
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66 +
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67 + SET(KERNEL_OBJECT_NAME "${RATHAXES_SOURCE}_${SYSTEM}.ko")
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68 + ADD_CUSTOM_COMMAND(OUTPUT "${KERNEL_OBJECT_NAME}"
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69 + # The linux Makefile to build kernel module is quite
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70 + # picky about file location and its own name. Let's
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71 + # copy our source side by side with the Makefile:
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72 + COMMAND "${CMAKE_COMMAND}" "-E" "copy" "${RATHAXES_SOURCE}_${SYSTEM}.c" "${MODULE_BUILD_DIR}"
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73 + # Then call make in the little build space we created
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74 + COMMAND "${CMAKE_COMMAND}" "-E" "chdir" "${MODULE_BUILD_DIR}" "${CMAKE_BUILD_TOOL}"
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75 + # Finally copy the generated .ko back into the current binary dir
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76 + COMMAND "${CMAKE_COMMAND}" "-E" "copy" "${MODULE_BUILD_DIR}/${KERNEL_OBJECT_NAME}" "${CMAKE_CURRENT_BINARY_DIR}"
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77 + COMMENT "Building Rathaxes Linux LKM for ${NAME}"
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78 + VERBATIM
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79 + DEPENDS "${RATHAXES_SOURCE}_${SYSTEM}.c")
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80 +
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81 + ADD_CUSTOM_TARGET("${NAME}" ALL DEPENDS "${KERNEL_OBJECT_NAME}")
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82 + ELSE (${SYSTEM} MATCHES "Linux")
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83 + MESSAGE(STATUS "Don't know how to build kernel modules for ${SYSTEM} (yet)")
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84 + ENDIF (${SYSTEM} MATCHES "Linux")
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85 +ENDFUNCTION(ADD_RATHAXES_LKM NAME RATHAXES_SOURCE)