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MIPS: boot: fix build rule of vmlinux.its.S

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As Documentation/kbuild/makefile.txt says, it is a typical mistake
to forget the FORCE prerequisite for the rule invoked by if_changed.

Add the FORCE to the prerequisite, but it must be filtered-out from
the files passed to the 'cat' command.  Because this rule generates
.vmlinux.its.S.cmd, vmlinux.its.S must be specified as targets so
that the .cmd file is included.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Patchwork: https://patchwork.linux-mips.org/patch/19097/
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: linux-kernel@vger.kernel.org
This commit is contained in:
Masahiro Yamada 2018-04-16 23:47:43 +09:00 committed by Paul Burton
parent 321f95b643
commit 67e09db507
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1 changed files with 5 additions and 3 deletions
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arch/mips/boot/Makefile
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@ -118,10 +118,12 @@ ifeq ($(ADDR_BITS),64)
itb_addr_cells = 2
endif
quiet_cmd_its_cat = CAT $@
cmd_its_cat = cat $^ >$@
targets += vmlinux.its.S
$(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS))
quiet_cmd_its_cat = CAT $@
cmd_its_cat = cat $(filter-out $(PHONY), $^) >$@
$(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
$(call if_changed,its_cat)
quiet_cmd_cpp_its_S = ITS $@