linux-kernel - [PATCH 06/15] kbuild: generate include/generated/compile.h in top Makefile

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Date:   Sun, 28 Aug 2022 11:39:54 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>
Subject: [PATCH 06/15] kbuild: generate include/generated/compile.h in top Makefile

Now that UTS_VERSION was separated out, this header can be generated
much earlier, and probably the top Makefile is a better place to do it
than init/Makefile.

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

 Makefile      | 8 +++++++-
 init/Makefile | 8 +-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index 54e481162608..d933c0acab12 100644
--- a/Makefile
+++ b/Makefile
@@ -1198,7 +1198,7 @@ PHONY += prepare archprepare
 
 archprepare: outputmakefile archheaders archscripts scripts include/config/kernel.release \
 	asm-generic $(version_h) $(autoksyms_h) include/generated/utsrelease.h \
-	include/generated/autoconf.h remove-stale-files
+	include/generated/compile.h include/generated/autoconf.h remove-stale-files
 
 prepare0: archprepare
 	$(Q)$(MAKE) $(build)=scripts/mod
@@ -1260,6 +1260,12 @@ $(version_h): FORCE
 include/generated/utsrelease.h: include/config/kernel.release FORCE
 	$(call filechk,utsrelease.h)
 
+filechk_compile.h = $(srctree)/scripts/mkcompile_h \
+	"$(UTS_MACHINE)" "$(CONFIG_CC_VERSION_TEXT)" "$(LD)"
+
+include/generated/compile.h: FORCE
+	$(call filechk,compile.h)
+
 PHONY += headerdep
 headerdep:
 	$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
diff --git a/init/Makefile b/init/Makefile
index 63f53d210cad..31c17a8e314b 100644
--- a/init/Makefile
+++ b/init/Makefile
@@ -43,15 +43,9 @@ filechk_uts_version = \
 $(obj)/utsversion-tmp.h: FORCE
 	$(call filechk,uts_version)
 
-$(obj)/version.o: include/generated/compile.h $(obj)/utsversion-tmp.h
+$(obj)/version.o: $(obj)/utsversion-tmp.h
 CFLAGS_version.o := -include $(obj)/utsversion-tmp.h
 
-filechk_compile.h = $(srctree)/scripts/mkcompile_h \
-	"$(UTS_MACHINE)" "$(CONFIG_CC_VERSION_TEXT)" "$(LD)"
-
-include/generated/compile.h: FORCE
-	$(call filechk,compile.h)
-
 #
 # Build version-timestamp.c with final UTS_VERSION
 #
-- 
2.34.1