From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Arnd Bergmann Subject: [PATCH 11/12] s390: make chkbss work with clang Date: Mon, 8 Apr 2019 23:26:24 +0200 Message-Id: <20190408212648.2407234-11-arnd@arndb.de> In-Reply-To: <20190408212648.2407234-1-arnd@arndb.de> References: <20190408212648.2407234-1-arnd@arndb.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-Archive: List-Post: To: Martin Schwidefsky , Heiko Carstens Cc: clang-built-linux@googlegroups.com, Nick Desaulniers , Nathan Chancellor , linux-s390@vger.kernel.org, Arnd Bergmann , Vasily Gorbik , linux-kernel@vger.kernel.org List-ID: 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 --- arch/s390/scripts/Makefile.chkbss | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/s390/scripts/Makefile.chkbss b/arch/s390/scripts/Makefile.chkbss index cd7e8f4419f5..884a9caff5fb 100644 --- a/arch/s390/scripts/Makefile.chkbss +++ b/arch/s390/scripts/Makefile.chkbss @@ -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 $@; -- 2.20.0