Commit 9a0ceb9c authored Apr 08, 2019 by Arnd Bergmann Committed by Martin Schwidefsky Apr 11, 2019

s390: make chkbss work with clang



llvm skips an empty .bss section entirely, which makes
the check fail with an unexpected error:

/tmp/binutils-multi-test/bin/s390x-linux-gnu-objdump: section '.bss' mentioned in a -j option, but not found in any input file
error: arch/s390/boot/compressed/decompressor.o .bss section is not empty
../arch/s390/scripts/Makefile.chkbss:20: recipe for target 'arch/s390/boot/compressed/decompressor.o.chkbss' failed

Change the check so we first see if a .bss section exists
before trying to read its size.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 0a113efc

arch/s390/scripts/Makefile.chkbss

+2 −1

Original line number	Diff line number	Diff line
		@@ -11,7 +11,8 @@ chkbss: $(addprefix $(obj)/, $(chkbss-files))

		quiet_cmd_chkbss = CHKBSS $<
		cmd_chkbss = \
		if ! $(OBJDUMP) -j .bss -w -h $< \| awk 'END { if ($$3) exit 1 }'; then \
		if $(OBJDUMP) -h $< \| grep -q "\.bss" && \
		! $(OBJDUMP) -j .bss -w -h $< \| awk 'END { if ($$3) exit 1 }'; then \
		echo "error: $< .bss section is not empty" >&2; exit 1; \
		fi; \
		touch $@;

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