From: Josh Poimboeuf Date: Wed, 17 Sep 2025 16:04:04 +0000 (-0700) Subject: livepatch: Add CONFIG_KLP_BUILD X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7ae60ff0b77f2e741049087a6d1beaf679b91a2c;p=thirdparty%2Fkernel%2Flinux.git livepatch: Add CONFIG_KLP_BUILD In preparation for introducing klp-build, add a new CONFIG_KLP_BUILD option. The initial version will only be supported on x86-64. Acked-by: Petr Mladek Tested-by: Joe Lawrence Signed-off-by: Josh Poimboeuf --- diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index fa3b616af03a2..ac9692093215f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -261,6 +261,7 @@ config X86 select HAVE_FUNCTION_ERROR_INJECTION select HAVE_KRETPROBES select HAVE_RETHOOK + select HAVE_KLP_BUILD if X86_64 select HAVE_LIVEPATCH if X86_64 select HAVE_MIXED_BREAKPOINTS_REGS select HAVE_MOD_ARCH_SPECIFIC diff --git a/kernel/livepatch/Kconfig b/kernel/livepatch/Kconfig index 53d51ed619a3d..4c0a9c18d0b25 100644 --- a/kernel/livepatch/Kconfig +++ b/kernel/livepatch/Kconfig @@ -18,3 +18,15 @@ config LIVEPATCH module uses the interface provided by this option to register a patch, causing calls to patched functions to be redirected to new function code contained in the patch module. + +config HAVE_KLP_BUILD + bool + help + Arch supports klp-build + +config KLP_BUILD + def_bool y + depends on LIVEPATCH && HAVE_KLP_BUILD + select OBJTOOL + help + Enable klp-build support