s390: make built-in.a not directly depend on *.o.chkbss files

When I was refactoring cmd_ar_builtin in scripts/Makefile.build,
I noticed the build breakage of s390.

Some Makefiles of s390 add extra dependencies to built-in.a;
built-in.a depends on timestamp files *.o.chkbss, but $(AR) does
not want to include them into built-in.a.

Insert a phony target 'chkbss' in between so that $(AR) can take
$(filter-out $(PHONY), $^) as input.

While I was here, I refactored Makefile.chkbss a little bit.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>

diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index d5ad724f5c9621665219f0a13786a4de94188fd7..b4d8a426ec743456819f9f12e499ef1819f7f0b3 100644 (file)
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -67,6 +67,6 @@ install: $(CONFIGURE) $(obj)/bzImage
        sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
              System.map "$(INSTALL_PATH)"
 
-chkbss := $(OBJECTS)
-chkbss-target := $(obj)/startup.a
+chkbss := $(obj-y)
+chkbss-target := startup.a
 include $(srctree)/arch/s390/scripts/Makefile.chkbss

diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile
index b1bdd15e3429f39d50b0c8e73896c5539a4cfc5e..fa529c5b448650d29b9af3e5da4035fad80629b0 100644 (file)
--- a/arch/s390/boot/compressed/Makefile
+++ b/arch/s390/boot/compressed/Makefile
@@ -63,6 +63,6 @@ OBJCOPYFLAGS_piggy.o := -I binary -O elf64-s390 -B s390:64-bit --rename-section
 $(obj)/piggy.o: $(obj)/vmlinux.bin$(suffix-y) FORCE
        $(call if_changed,objcopy)
 
-chkbss := $(filter-out $(obj)/piggy.o $(obj)/info.o,$(OBJECTS))
-chkbss-target := $(obj)/vmlinux.bin
+chkbss := $(filter-out piggy.o info.o, $(obj-y))
+chkbss-target := vmlinux.bin
 include $(srctree)/arch/s390/scripts/Makefile.chkbss

diff --git a/arch/s390/scripts/Makefile.chkbss b/arch/s390/scripts/Makefile.chkbss
index 9bba2c14e0cafbcad575cd3f44f2521b9bed79af..cd7e8f4419f51c5ab5426e39ec7dacfb47c22f80 100644 (file)
--- a/arch/s390/scripts/Makefile.chkbss
+++ b/arch/s390/scripts/Makefile.chkbss
@@ -1,23 +1,20 @@
 # SPDX-License-Identifier: GPL-2.0
 
+chkbss-target ?= built-in.a
+$(obj)/$(chkbss-target): chkbss
+
+chkbss-files := $(addsuffix .chkbss, $(chkbss))
+clean-files += $(chkbss-files)
+
+PHONY += chkbss
+chkbss: $(addprefix $(obj)/, $(chkbss-files))
+
 quiet_cmd_chkbss = CHKBSS  $<
-define cmd_chkbss
-       rm -f $@; \
+      cmd_chkbss = \
        if ! $(OBJDUMP) -j .bss -w -h $< | awk 'END { if ($$3) exit 1 }'; then \
                echo "error: $< .bss section is not empty" >&2; exit 1; \
        fi; \
        touch $@;
-endef
-
-chkbss-target ?= $(obj)/built-in.a
-ifneq (,$(findstring /,$(chkbss)))
-chkbss-files := $(patsubst %, %.chkbss, $(chkbss))
-else
-chkbss-files := $(patsubst %, $(obj)/%.chkbss, $(chkbss))
-endif
-
-$(chkbss-target): $(chkbss-files)
-targets += $(notdir $(chkbss-files))
 
-%.o.chkbss: %.o
+$(obj)/%.o.chkbss: $(obj)/%.o
        $(call cmd,chkbss)