CONFIG_AUTOFDO_CLANG: Enable Clang's AutoFDO build (EXPERIMENTAL)

General informations

The Linux kernel configuration item CONFIG_AUTOFDO_CLANG:

• prompt: Enable Clang's AutoFDO build (EXPERIMENTAL)
• type: bool
• depends on: ( CONFIG_ARCH_SUPPORTS_AUTOFDO_CLANG ) && ( CONFIG_CC_IS_CLANG && CONFIG_CLANG_VERSION >= CONFIG_170000 )
• defined in arch/Kconfig
• found in Linux kernels: 6.13-rc+HEAD

Help text

This option enables Clang’s AutoFDO build. When an AutoFDO profile is specified in variable CLANG_AUTOFDO_PROFILE during the build process, Clang uses the profile to optimize the kernel.

If no profile is specified, AutoFDO options are still passed to Clang to facilitate the collection of perf data for creating an AutoFDO profile in subsequent builds.

If unsure, say N.

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