Files
linux/arch/xtensa/boot/boot-redboot/Makefile
Masahiro Yamada 8824c1af3a xtensa: add boot subdirectories build artifacts to 'targets'
Xtensa always rebuilds the following even if nothing in the source code
has been changed. Passing V=2 shows the reason.

  AS      arch/xtensa/boot/boot-elf/bootstrap.o - due to bootstrap.o not in $(targets)
  LDS     arch/xtensa/boot/boot-elf/boot.lds - due to boot.lds not in $(targets)

They are built by if_changed(_dep). Add them to 'targets' so .*.cmd files
are included.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Message-Id: <20200722004707.779601-1-masahiroy@kernel.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2020-07-28 00:57:06 -07:00

37 lines
985 B
Makefile

#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
ifeq ($(BIG_ENDIAN),1)
OBJCOPY_ARGS := -O elf32-xtensa-be
else
OBJCOPY_ARGS := -O elf32-xtensa-le
endif
LD_ARGS = -T $(srctree)/$(obj)/boot.ld
boot-y := bootstrap.o
targets += $(boot-y)
OBJS := $(addprefix $(obj)/,$(boot-y))
LIBS := arch/xtensa/boot/lib/lib.a arch/xtensa/lib/lib.a
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
$(obj)/zImage.o: $(obj)/../vmlinux.bin.gz $(OBJS)
$(Q)$(OBJCOPY) $(OBJCOPY_ARGS) -R .comment \
--add-section image=$< \
--set-section-flags image=contents,alloc,load,load,data \
$(OBJS) $@
$(obj)/zImage.elf: $(obj)/zImage.o $(LIBS)
$(Q)$(LD) $(LD_ARGS) -o $@ $^ -L/xtensa-elf/lib $(LIBGCC)
$(obj)/../zImage.redboot: $(obj)/zImage.elf
$(Q)$(OBJCOPY) -S -O binary $< $@
$(Q)$(kecho) ' Kernel: $@ is ready'
all zImage: $(obj)/../zImage.redboot