Commit 6dafca97 authored by Sami Tolvanen's avatar Sami Tolvanen Committed by Kees Cook
Browse files

x86, build: use objtool mcount 



Select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION is selected to use
objtool to generate __mcount_loc sections for dynamic ftrace with
Clang and gcc <5 (later versions of gcc use -mrecord-mcount).

Signed-off-by: default avatarSami Tolvanen <samitolvanen@google.com>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
parent 22c8542d

arch/x86/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ config X86 
	select HAVE_CONTEXT_TRACKING		if X86_64

	select HAVE_CONTEXT_TRACKING_OFFSTACK	if HAVE_CONTEXT_TRACKING

	select HAVE_C_RECORDMCOUNT

	select HAVE_OBJTOOL_MCOUNT		if STACK_VALIDATION

	select HAVE_DEBUG_KMEMLEAK

	select HAVE_DMA_CONTIGUOUS

	select HAVE_DYNAMIC_FTRACE