From: Arnd Bergmann <arnd@arndb.de>
To: Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: clang-built-linux@googlegroups.com,
Nick Desaulniers <ndesaulniers@google.com>,
Nathan Chancellor <natechancellor@gmail.com>,
linux-s390@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Vasily Gorbik <gor@linux.ibm.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 11/12] s390: make chkbss work with clang
Date: Mon, 8 Apr 2019 23:26:24 +0200 [thread overview]
Message-ID: <20190408212648.2407234-11-arnd@arndb.de> (raw)
In-Reply-To: <20190408212648.2407234-1-arnd@arndb.de>
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>
---
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
next prev parent reply other threads:[~2019-04-08 21:26 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-08 21:26 [PATCH 01/12] s390: remove -fno-strength-reduce flag Arnd Bergmann
2019-04-08 21:26 ` [PATCH 02/12] s390: don't build vdso32 with clang Arnd Bergmann
2019-04-10 15:57 ` Martin Schwidefsky
2019-04-10 16:26 ` Nick Desaulniers
2019-04-10 19:00 ` Arnd Bergmann
2019-04-08 21:26 ` [PATCH 03/12] s390: purgatory: pass --target option to clang Arnd Bergmann
2019-04-08 22:03 ` Nathan Chancellor
2019-04-09 6:43 ` Arnd Bergmann
2019-04-09 16:30 ` Nathan Chancellor
2019-04-09 18:11 ` Nick Desaulniers
2019-04-08 21:26 ` [PATCH 04/12] s390: qeth: address type mismatch warning Arnd Bergmann
2019-04-08 22:16 ` Nathan Chancellor
2019-04-09 6:44 ` Arnd Bergmann
2019-04-10 15:58 ` Martin Schwidefsky
2019-04-08 21:26 ` [PATCH 05/12] s390: zcrypt: initialize variables before_use Arnd Bergmann
2019-04-08 22:31 ` Nathan Chancellor
2019-04-09 9:54 ` Harald Freudenberger
2019-04-09 10:13 ` Arnd Bergmann
2019-04-10 15:59 ` Martin Schwidefsky
2019-04-10 18:57 ` Arnd Bergmann
2019-04-11 7:40 ` Martin Schwidefsky
2019-04-08 21:26 ` [PATCH 06/12] s390: ctcm: fix ctcm_new_device error return code Arnd Bergmann
2019-04-08 22:33 ` Nathan Chancellor
2019-04-10 16:00 ` Martin Schwidefsky
2019-04-08 21:26 ` [PATCH 07/12] s390: cio: fix cio_irb declaration Arnd Bergmann
2019-04-08 22:35 ` Nathan Chancellor
2019-04-09 13:13 ` Sebastian Ott
2019-04-08 21:26 ` [PATCH 08/12] s390: syscall_wrapper: avoid clang warning Arnd Bergmann
2019-04-10 16:00 ` Martin Schwidefsky
2019-04-08 21:26 ` [PATCH 09/12] s390: make __load_psw_mask work with clang Arnd Bergmann
2019-04-10 16:01 ` Martin Schwidefsky
2019-04-08 21:26 ` [PATCH 10/12] s390: avoid __builtin_return_address(n) on clang Arnd Bergmann
2019-04-10 16:03 ` Martin Schwidefsky
2019-04-10 16:14 ` Steven Rostedt
2019-04-10 19:07 ` Arnd Bergmann
2019-04-11 7:32 ` Martin Schwidefsky
2019-04-08 21:26 ` Arnd Bergmann [this message]
2019-04-10 16:02 ` [PATCH 11/12] s390: make chkbss work with clang Martin Schwidefsky
2019-04-08 21:26 ` [PATCH 12/12] [PROBABLY WRONG] s390: void '0' constraint in inline assembly Arnd Bergmann
2019-04-10 13:55 ` Martin Schwidefsky
2019-04-10 16:35 ` Nick Desaulniers
2019-04-10 18:55 ` Arnd Bergmann
2019-04-10 15:57 ` [PATCH 01/12] s390: remove -fno-strength-reduce flag Martin Schwidefsky
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