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Kernel: Split debug symbols into a separate file

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This speeds up the boot process considerably when specifying the kernel
image via -initrd.
This commit is contained in:
Gunnar Beutner 2021-07-17 09:43:15 +02:00 • committed by Andreas Kling
parent b708b23b13
commit 98f8ecd9d2
6 changed files with 10 additions and 5 deletions
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6
Kernel/CMakeLists.txt
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@ -418,10 +418,14 @@ add_custom_command(
COMMAND ${CMAKE_OBJCOPY} -O elf32-i386 ${CMAKE_CURRENT_BINARY_DIR}/${KERNEL_TARGET} ${CMAKE_CURRENT_BINARY_DIR}/Kernel
COMMAND sh ${CMAKE_CURRENT_SOURCE_DIR}/mkmap.sh
COMMAND ${CMAKE_COMMAND} -E env OBJCOPY=${CMAKE_OBJCOPY} sh ${CMAKE_CURRENT_SOURCE_DIR}/embedmap.sh
BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/Kernel ${CMAKE_CURRENT_BINARY_DIR}/kernel.map
COMMAND ${CMAKE_OBJCOPY} --only-keep-debug Kernel Kernel.debug
COMMAND ${CMAKE_OBJCOPY} --strip-debug Kernel
COMMAND ${CMAKE_OBJCOPY} --add-gnu-debuglink=Kernel.debug Kernel
BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/kernel.map
)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/Kernel" DESTINATION boot)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/Kernel.debug" DESTINATION boot)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/kernel.map" DESTINATION res)
serenity_install_headers(Kernel)