ARC: build: add boot_targets to PHONY

[ 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@kernel.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index cbb110309ae1cd27aefdca4c266f81cf72c5f77a..99c55f015ce86eda3f822ab8d8dc15f7c974ec3c 100644 (file)
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -93,6 +93,7 @@ boot          := arch/arc/boot
 
 boot_targets := uImage uImage.bin uImage.gz uImage.lzma
 
+PHONY += $(boot_targets)
 $(boot_targets): vmlinux
        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@