commit 7fe859eef99b6fac655416d5bb01c82bd0da2ada
author Masahiro Yamada <masahiroy@kernel.org> Sun Jan 17 20:16:32 2021 +0900
committer Rich Felker <dalias@libc.org> Fri Sep 17 14:00:07 2021 -0400
tree 02a9955102fc72ce7b22c632e9c9d93192862ec1
parent 7b6ef6e570eab9714f9b2374e0bad179bff99fdd

sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/

Even if none of source code is updated, the following are every time
rebuilt:

  CC      arch/sh/boot/compressed/cache.o
  SHIPPED arch/sh/boot/compressed/ashiftrt.S
  AS      arch/sh/boot/compressed/ashiftrt.o
  SHIPPED arch/sh/boot/compressed/ashldi3.c
  CC      arch/sh/boot/compressed/ashldi3.o
  SHIPPED arch/sh/boot/compressed/ashrsi3.S
  AS      arch/sh/boot/compressed/ashrsi3.o
  SHIPPED arch/sh/boot/compressed/ashlsi3.S
  AS      arch/sh/boot/compressed/ashlsi3.o
  SHIPPED arch/sh/boot/compressed/lshrsi3.S
  AS      arch/sh/boot/compressed/lshrsi3.o
  LD      arch/sh/boot/compressed/vmlinux
  OBJCOPY arch/sh/boot/zImage

Add build artifacts to 'targets' as needed.

I turned the library files to check-in files. It is simpler than
copying from arch/sh/lib/ at build-time.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Rich Felker <dalias@libc.org>