From: Keith Owens <kaos@ocs.com.au>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] 2.4.14 Missing asm clobbers
Date: Wed, 21 Nov 2001 00:40:56 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590698805537@msgid-missing> (raw)
A comment of Linus's on l-k promoted me to check ia64 inline asm for
predicates. I was surprised to find what look like missing asm
clobbers. I am not 100% sure that these are errors (gcc clobbers are a
black art ;) so there is no patch.
include/asm-ia64/spinlock.h.
spin_lock() changes ar.ccv, p7 without a clobber (!NEW_LOCK version).
read_lock() changes p6 without a clobber.
write_lock() changes ar.ccv, p7 without a clobber.
arch/ia64/kernel/traps.c
fp_emulate() does ldf f10, f11 without a clobber.
arch/ia64/kernel/unaligned.c
invala_gr() and invala_fr() do invala without a "memory" clobber.
Not sure if it is necessary or not.
next reply other threads:[~2001-11-21 0:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-21 0:40 Keith Owens [this message]
2001-11-21 1:37 ` [Linux-ia64] 2.4.14 Missing asm clobbers David Mosberger
2001-11-26 23:12 ` David Mosberger
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