[tip: x86/build] x86/boot/build: Make 'make bzlilo' not depend on vmlinux or $(obj)/bzImage

[tip-bot2 for Masahiro Yamada]

The following commit has been merged into the x86/build branch of tip:

Commit-ID:     30ce434e44d7e142e7a36c6b3eb2545adf692c67
Gitweb:        https://git.kernel.org/tip/30ce434e44d7e142e7a36c6b3eb2545adf692c67
Author:        Masahiro Yamada <masahiroy@xxxxxxxxxx>
AuthorDate:    Sat, 15 Feb 2020 15:38:51 +09:00
Committer:     Borislav Petkov <bp@xxxxxxx>
CommitterDate: Tue, 21 Apr 2020 18:10:28 +02:00

x86/boot/build: Make 'make bzlilo' not depend on vmlinux or $(obj)/bzImage

bzlilo is an installation target because it copies files to
$(INSTALL_PATH)/, then runs 'lilo'. However, arch/x86/Makefile and
arch/x86/boot/Makefile have it depend on vmlinux and $(obj)/bzImage,
respectively.

'make bzlilo' may update some build artifacts in the source tree.

As commit

  19514fc665ff ("arm, kbuild: make "make install" not depend on vmlinux")

explained, this should not happen.

Make 'bzlilo' not depend on any build artifact.

Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Link: https://lkml.kernel.org/r/20200215063852.8298-1-masahiroy@xxxxxxxxxx
---
 arch/x86/Makefile      | 6 +++---
 arch/x86/boot/Makefile | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index b65ec63..00e378d 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -246,7 +246,7 @@ drivers-$(CONFIG_FB) += arch/x86/video/
 
 boot := arch/x86/boot
 
-BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage
+BOOT_TARGETS = bzdisk fdimage fdimage144 fdimage288 isoimage
 
 PHONY += bzImage $(BOOT_TARGETS)
 
@@ -267,8 +267,8 @@ endif
 $(BOOT_TARGETS): vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $@
 
-PHONY += install
-install:
+PHONY += install bzlilo
+install bzlilo:
 	$(Q)$(MAKE) $(build)=$(boot) $@
 
 PHONY += vdso_install
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 02c8d1c..f1bf4a7 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -145,7 +145,7 @@ isoimage: $(obj)/bzImage
 	$(call cmd,genimage,isoimage,$(obj)/image.iso)
 	@$(kecho) 'Kernel: $(obj)/image.iso is ready'
 
-bzlilo: $(obj)/bzImage
+bzlilo:
 	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
 	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
 	cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz