From 03f16cd020eb8bb2eb837e2090086f296a9fa91d Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Mon, 18 Apr 2022 09:50:36 -0700 Subject: objtool: Add CONFIG_OBJTOOL Now that stack validation is an optional feature of objtool, add CONFIG_OBJTOOL and replace most usages of CONFIG_STACK_VALIDATION with it. CONFIG_STACK_VALIDATION can now be considered to be frame-pointer specific. CONFIG_UNWINDER_ORC is already inherently valid for live patching, so no need to "validate" it. Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Miroslav Benes Link: https://lkml.kernel.org/r/939bf3d85604b2a126412bf11af6e3bd3b872bcb.1650300597.git.jpoimboe@redhat.com --- arch/Kconfig | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/Kconfig') diff --git a/arch/Kconfig b/arch/Kconfig index 29b0167c088b..04cdef16db24 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -1028,11 +1028,14 @@ config ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT depends on MMU select ARCH_HAS_ELF_RANDOMIZE +config HAVE_OBJTOOL + bool + config HAVE_STACK_VALIDATION bool help - Architecture supports the 'objtool check' host tool command, which - performs compile-time stack metadata validation. + Architecture supports objtool compile-time frame pointer rule + validation. config HAVE_RELIABLE_STACKTRACE bool @@ -1302,6 +1305,7 @@ config HAVE_STATIC_CALL config HAVE_STATIC_CALL_INLINE bool depends on HAVE_STATIC_CALL + select OBJTOOL config HAVE_PREEMPT_DYNAMIC bool -- cgit v1.2.3