linux-kernel - [PATCH v7 1/8] kbuild: replace $(linked-object) with CONFIG options

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Message-Id: <20220527100155.1996314-2-masahiroy@kernel.org>
Date:   Fri, 27 May 2022 19:01:48 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>, llvm@...ts.linux.dev,
        Helge Deller <deller@....de>, linux-parisc@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: [PATCH v7 1/8] kbuild: replace $(linked-object) with CONFIG options

*.prelink.o is created when CONFIG_LTO_CLANG or CONFIG_X86_KERNEL_IBT
is enabled.

Replace $(linked-object) with $(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT)
so you will get better idea when the --link option is passed.

No functional change is intended.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

Changes in v7:
  - New patch

 scripts/Makefile.build | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 06400504150b..f80196eef03a 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -219,7 +219,7 @@ objtool_args =								\
 	$(if $(CONFIG_STACK_VALIDATION), --stackval)			\
 	$(if $(CONFIG_HAVE_STATIC_CALL_INLINE), --static-call)		\
 	--uaccess							\
-	$(if $(linked-object), --link)					\
+	$(if $($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT)), --link)	\
 	$(if $(part-of-module), --module)				\
 	$(if $(CONFIG_GCOV_KERNEL), --no-unreachable)
 
@@ -284,7 +284,6 @@ quiet_cmd_cc_prelink_modules = LD [M]  $@
 # modules into native code
 $(obj)/%.prelink.o: objtool-enabled = y
 $(obj)/%.prelink.o: part-of-module := y
-$(obj)/%.prelink.o: linked-object := y
 
 $(obj)/%.prelink.o: $(obj)/%.o FORCE
 	$(call if_changed,cc_prelink_modules)
-- 
2.32.0