From: Masahiro Yamada masahiroy@kernel.org
[ Upstream commit 8f0c32c788fffa8e88f995372415864039347c8a ]
Commit b1a1a1a09b46 ("kbuild: lto: postpone objtool") moved objtool_args to Makefile.lib, so the arguments can be used in Makefile.modfinal as well as Makefile.build.
With commit 850ded46c642 ("kbuild: Fix TRIM_UNUSED_KSYMS with LTO_CLANG"), module LTO linking came back to scripts/Makefile.build again.
So, there is no more reason to keep objtool_args in a separate file.
Get it back to the original place, close to the objtool command.
Remove the stale comment too.
Signed-off-by: Masahiro Yamada masahiroy@kernel.org Reviewed-by: Kees Cook keescook@chromium.org Acked-by: Josh Poimboeuf jpoimboe@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/Makefile.build | 10 ++++++++++ scripts/Makefile.lib | 11 ----------- 2 files changed, 10 insertions(+), 11 deletions(-)
--- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -224,6 +224,16 @@ cmd_record_mcount = $(if $(findstring $( endif # CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT
ifdef CONFIG_STACK_VALIDATION + +objtool_args = \ + $(if $(CONFIG_UNWINDER_ORC),orc generate,check) \ + $(if $(part-of-module), --module) \ + $(if $(CONFIG_FRAME_POINTER),, --no-fp) \ + $(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), --no-unreachable)\ + $(if $(CONFIG_RETPOLINE), --retpoline) \ + $(if $(CONFIG_X86_SMAP), --uaccess) \ + $(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount) + ifndef CONFIG_LTO_CLANG
__objtool_obj := $(objtree)/tools/objtool/objtool --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -232,17 +232,6 @@ ifeq ($(CONFIG_LTO_CLANG),y) mod-prelink-ext := .lto endif
-# Objtool arguments are also needed for modfinal with LTO, so we define -# then here to avoid duplication. -objtool_args = \ - $(if $(CONFIG_UNWINDER_ORC),orc generate,check) \ - $(if $(part-of-module), --module) \ - $(if $(CONFIG_FRAME_POINTER),, --no-fp) \ - $(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), --no-unreachable)\ - $(if $(CONFIG_RETPOLINE), --retpoline) \ - $(if $(CONFIG_X86_SMAP), --uaccess) \ - $(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount) - # Useful for describing the dependency of composite objects # Usage: # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)