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Kernel: Add a CMake flag to enable LTO for the kernel

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Gunnar Beutner 2021-04-29 15:25:31 +02:00 • committed by Andreas Kling
parent 55ae52fdf8
commit 6288ae2c37
2 changed files with 8 additions and 2 deletions
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5
CMakeLists.txt
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@ -27,6 +27,7 @@ option(ENABLE_COMPILETIME_FORMAT_CHECK "Enable compiletime format string checks"
option(ENABLE_PCI_IDS_DOWNLOAD "Enable download of the pci.ids database at build time" ON)
option(BUILD_LAGOM "Build parts of the system targeting the host OS for fuzzing/testing" OFF)
option(PRECOMPILE_COMMON_HEADERS "Precompile some common headers to speedup compilation" OFF)
option(ENABLE_KERNEL_LTO "Build the kernel with link-time optimization" OFF)
add_custom_target(run
COMMAND ${CMAKE_SOURCE_DIR}/Meta/run.sh
@ -124,9 +125,9 @@ else()
set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++)
set(CMAKE_ASM_COMPILER ${TOOLCHAIN_PREFIX}gcc)
set(CMAKE_LINKER ${TOOLCHAIN_PREFIX}ld)
set(CMAKE_RANLIB ${TOOLCHAIN_PREFIX}ranlib)
set(CMAKE_RANLIB ${TOOLCHAIN_PREFIX}gcc-ranlib)
set(CMAKE_STRIP ${TOOLCHAIN_PREFIX}strip)
set(CMAKE_AR ${TOOLCHAIN_PREFIX}ar)
set(CMAKE_AR ${TOOLCHAIN_PREFIX}gcc-ar)
endif()
foreach(lang ASM C CXX OBJC OBJCXX)