[PATCH AUTOSEL 4.9 1/8] ARC: build: add boot_targets to PHONY

[Sasha Levin]

From: Masahiro Yamada <masahiroy at kernel.org>

[ Upstream commit 0cfccb3c04934cdef42ae26042139f16e805b5f7 ]

The top-level boot_targets (uImage and uImage.*) should be phony
targets. They just let Kbuild descend into arch/arc/boot/ and create
files there.

If a file exists in the top directory with the same name, the boot
image will not be created.

You can confirm it by the following steps:

  $ export CROSS_COMPILE=<your-arc-compiler-prefix>
  $ make -s ARCH=arc defconfig all   # vmlinux will be built
  $ touch uImage.gz
  $ make ARCH=arc uImage.gz
  CALL    scripts/atomic/check-atomics.sh
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  # arch/arc/boot/uImage.gz is not created

Specify the targets as PHONY to fix this.

Signed-off-by: Masahiro Yamada <masahiroy at kernel.org>
Signed-off-by: Vineet Gupta <vgupta at synopsys.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 arch/arc/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index fd79faab78926..5dc2d73c64994 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -108,6 +108,7 @@ bootpImage: vmlinux
 
 boot_targets += uImage uImage.bin uImage.gz
 
+PHONY += $(boot_targets)
 $(boot_targets): vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
-- 
2.27.0