From: Heiko Carstens <hca@linux.ibm.com>
To: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Jonas Paulsson <paulsson@linux.vnet.ibm.com>,
Ulrich Weigand <ulrich.weigand@de.ibm.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Alexander Egorenkov <egorenar@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Andreas Krebbel <krebbel@linux.ibm.com>,
Nathan Chancellor <natechancellor@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>,
linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: Re: [PATCH 2/8] s390/alternatives: remove padding generation code
Date: Wed, 11 May 2022 19:02:00 +0200 [thread overview]
Message-ID: <YnvsCPIXmCmzlDlX@osiris> (raw)
In-Reply-To: <20220511120532.2228616-3-hca@linux.ibm.com>
On Wed, May 11, 2022 at 02:05:26PM +0200, Heiko Carstens wrote:
> clang fails to handle ".if" statements in inline assembly which are heavily
> used in the alternatives code.
FWIW, I missed to add error message(s) to the changelog:
In file included from ./include/linux/spinlock.h:93:
./arch/s390/include/asm/spinlock.h:81:3: error: expected absolute expression
ALTERNATIVE("", ".insn rre,0xb2fa0000,7,0", 49) /* NIAI 7 */
^
./arch/s390/include/asm/alternative.h:118:2: note: expanded from macro 'ALTERNATIVE'
ALTINSTR_REPLACEMENT(altinstr, 1) \
^
./arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTINSTR_REPLACEMENT'
INSTR_LEN_SANITY_CHECK(altinstr_len(num))
^
./arch/s390/include/asm/alternative.h:62:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
".if " len " > 254\n" \
^
<inline asm>:5:5: note: instantiated into assembly here
.if 6651b-6641b > 254
^
next prev parent reply other threads:[~2022-05-11 17:02 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 12:05 [PATCH 0/8] s390: allow to build with llvm's integrated assembler Heiko Carstens
2022-05-11 12:05 ` [PATCH 1/8] s390/alternatives: provide identical sized orginal/alternative sequences Heiko Carstens
2022-05-13 9:17 ` Vasily Gorbik
2022-05-11 12:05 ` [PATCH 2/8] s390/alternatives: remove padding generation code Heiko Carstens
2022-05-11 17:02 ` Heiko Carstens [this message]
2022-05-13 9:18 ` Vasily Gorbik
2022-05-11 12:05 ` [PATCH 3/8] s390/entry: shorten OUTSIDE macro Heiko Carstens
2022-05-12 15:59 ` kernel test robot
2022-05-12 16:20 ` kernel test robot
2022-05-12 17:21 ` Heiko Carstens
2022-05-12 18:00 ` Nick Desaulniers
2022-05-12 19:15 ` Heiko Carstens
2022-05-12 19:25 ` Nick Desaulniers
2022-05-13 12:29 ` Heiko Carstens
2022-05-11 12:05 ` [PATCH 4/8] s390/entry: workaround llvm's IAS limitations Heiko Carstens
2022-05-11 17:30 ` Nathan Chancellor
2022-05-12 17:24 ` Heiko Carstens
2022-05-12 19:06 ` Nathan Chancellor
2022-05-12 19:16 ` Heiko Carstens
2022-05-16 9:07 ` Alexander Gordeev
2022-05-16 10:19 ` Heiko Carstens
2022-05-16 10:42 ` Jonas Paulsson
2022-05-16 11:11 ` Alexander Gordeev
2022-05-16 14:05 ` Heiko Carstens
2022-05-11 12:05 ` [PATCH 5/8] s390/purgatory: " Heiko Carstens
2022-05-11 19:54 ` Nick Desaulniers
2022-05-12 17:26 ` Heiko Carstens
2022-05-12 17:25 ` Heiko Carstens
2022-05-11 12:05 ` [PATCH 6/8] s390/boot: workaround llvm IAS bug Heiko Carstens
2022-05-11 19:50 ` Nick Desaulniers
2022-05-11 12:05 ` [PATCH 7/8] s390/boot: do not emit debug info for assembly with llvm's IAS Heiko Carstens
2022-05-11 19:40 ` Nick Desaulniers
2022-05-12 17:30 ` Heiko Carstens
2022-05-11 12:05 ` [PATCH 8/8] scripts/min-tool-version.sh: raise minimum clang version to 14.0.0 for s390 Heiko Carstens
2022-05-11 19:27 ` Nick Desaulniers
2022-05-11 19:56 ` Nick Desaulniers
2022-05-12 19:06 ` Heiko Carstens
2022-05-11 19:48 ` [PATCH 0/8] s390: allow to build with llvm's integrated assembler Nick Desaulniers
2022-05-12 19:04 ` Heiko Carstens
2022-05-11 20:52 ` Nathan Chancellor
2022-05-12 19:03 ` Heiko Carstens
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