cmake: Toolchain abstraction: Abstraction of binary tool, strip.
This abstracts the interface for generation of the strip command line, by naming the desired actions instead of directly setting the command parameters, which then opens up for other binary tool sets which may require different arguments to achieve the desired result. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
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5 changed files with 76 additions and 2 deletions
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@ -1377,14 +1377,23 @@ if(CONFIG_OUTPUT_STAT)
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endif()
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if(CONFIG_BUILD_OUTPUT_STRIPPED)
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set(out_stripped_cmd "")
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set(out_stripped_byprod "")
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bintools_strip(
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RESULT_CMD_LIST out_stripped_cmd
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RESULT_BYPROD_LIST out_stripped_byprod
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STRIP_ALL
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FILE_INPUT ${KERNEL_ELF_NAME}
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FILE_OUTPUT ${KERNEL_STRIP_NAME}
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)
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list(APPEND
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post_build_commands
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COMMAND
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${CMAKE_STRIP} --strip-all ${KERNEL_ELF_NAME} -o ${KERNEL_STRIP_NAME}
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${out_stripped_cmd}
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)
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list(APPEND
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post_build_byproducts
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${KERNEL_STRIP_NAME}
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${out_stripped_byprod}
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)
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endif()
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@ -18,3 +18,4 @@ include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_memusage.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_objcopy.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_objdump.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_readelf.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_strip.cmake)
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62
cmake/bintools/gnu/target_strip.cmake
Normal file
62
cmake/bintools/gnu/target_strip.cmake
Normal file
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@ -0,0 +1,62 @@
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# SPDX-License-Identifier: Apache-2.0
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# Construct a commandline suitable for calling the toolchain binary tools
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# version of strip.
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#
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# Usage:
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# bintools_strip(
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# RESULT_CMD_LIST <List of commands to be executed, usually after build>
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# RESULT_BYPROD_LIST <List of command output byproducts>
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#
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# STRIP_ALL <When present, remove relocation and symbol info>
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# STRIP_DEBUG <When present, remove debugging symbols and sections>
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# STRIP_DWO <When present, remove DWARF .dwo sections>
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#
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# FILE_INPUT <The input file>
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# FILE_OUTPUT <The output file>
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# )
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function(bintools_strip)
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cmake_parse_arguments(
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# Prefix of output variables
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BINTOOLS_STRIP
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# List of argument names without values, hence boolean
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"STRIP_ALL;STRIP_DEBUG;STRIP_DWO"
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# List of argument names with one value
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"RESULT_CMD_LIST;RESULT_BYPROD_LIST;FILE_INPUT;FILE_OUTPUT"
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# List of argument names with multible values
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""
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# Parser input
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${ARGN}
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)
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if(NOT DEFINED BINTOOLS_STRIP_RESULT_CMD_LIST OR NOT DEFINED ${BINTOOLS_STRIP_RESULT_CMD_LIST})
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message(FATAL_ERROR "RESULT_CMD_LIST is required.")
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elseif(NOT DEFINED BINTOOLS_STRIP_FILE_INPUT OR NOT DEFINED BINTOOLS_STRIP_FILE_OUTPUT)
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message(FATAL_ERROR "Both FILE_INPUT and FILE_OUTPUT are required.")
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endif()
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# Handle stripping
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set(strip_what "")
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if(${BINTOOLS_STRIP_STRIP_ALL})
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set(strip_what "--strip-all")
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elseif(${BINTOOLS_STRIP_STRIP_DEBUG})
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set(strip_what "--strip-debug")
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elseif(${BINTOOLS_STRIP_STRIP_DWO})
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set(strip_what "--strip-dwo")
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endif()
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# Handle output
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set(strip_output -o ${BINTOOLS_STRIP_FILE_OUTPUT})
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# Construct the command
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set(strip_cmd
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# Base command
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COMMAND ${CMAKE_STRIP} ${strip_what}
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# Input and Output
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${BINTOOLS_STRIP_FILE_INPUT} ${strip_output}
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)
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# Place command in the parent provided variable
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set(${BINTOOLS_STRIP_RESULT_CMD_LIST} ${strip_cmd} PARENT_SCOPE)
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endfunction(bintools_strip)
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@ -15,3 +15,4 @@ include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_memusage.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_objcopy.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_objdump.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_readelf.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_strip.cmake)
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@ -19,3 +19,4 @@ include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_memusage.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_objcopy.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_objdump.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_readelf.cmake)
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include(${ZEPHYR_BASE}/cmake/bintools/gnu/target_strip.cmake)
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