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Kernel: Set kernel stack alignment to 8-bytes
This is already assumed by most of the assembly in the kernel, setting this is just making it explicit (and may save some stack).
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@ -700,10 +700,15 @@ if (NOT "${SERENITY_ARCH}" STREQUAL "aarch64")
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COMMENT "Preprocessing linker.ld"
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VERBATIM
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)
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add_custom_target(generate_kernel_linker_script DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/linker.ld)
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target_link_options(Kernel PRIVATE LINKER:-T ${CMAKE_CURRENT_BINARY_DIR}/linker.ld -nostdlib -nodefaultlibs)
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set_target_properties(Kernel PROPERTIES LINK_DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/linker.ld")
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if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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target_compile_options(Kernel PRIVATE -mpreferred-stack-boundary=3)
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elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang$")
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target_compile_options(Kernel PRIVATE -mstack-alignment=8)
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endif()
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else()
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target_link_options(Kernel PRIVATE LINKER:-T ${CMAKE_CURRENT_SOURCE_DIR}/Arch/aarch64/linker.ld -nostdlib LINKER:--no-pie)
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set_target_properties(Kernel PROPERTIES LINK_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/Arch/aarch64/linker.ld)
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