From: alexey.vyskubov@nokia.com (Alexey Vyskubov)
To: linux-kernel@vger.kernel.org
Cc: torvalds@transmeta.com
Subject: Bug in asm-i386/rwlock.h
Date: Tue, 4 Jun 2002 17:08:55 +0300 [thread overview]
Message-ID: <20020604140855.GA6967@terrapin> (raw)
Hello.
We suppose that include/asm-i386/rwlock.h contains a bug.
Under some circumstances (compiling some external modules + no
optimization + SMP) it's possible to get the following error:
/tmp/ccw7qDe1.s: Assembler messages:
/tmp/ccw7qDe1.s:6815: Error: bad expression
/tmp/ccw7qDe1.s:6815: Error: missing ')'
/tmp/ccw7qDe1.s:6815: Error: missing ')'
/tmp/ccw7qDe1.s:6815: Error: junk `ebx))' after expression
We believe that it's a typo in include/asm-i386/rwlock.h
--- include/asm-i386/rwlock.h.orig Tue Jun 4 16:32:38 2002
+++ include/asm-i386/rwlock.h Tue Jun 4 16:33:02 2002
@@ -61,7 +61,7 @@
::"a" (rw) : "memory")
#define __build_write_lock_const(rw, helper) \
- asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
+ asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
"jnz 2f\n" \
"1:\n" \
".section .text.lock,\"ax\"\n" \
--
Alexey Vyskubov
Dmitry Kasatkin
Nokia Research Center / Helsinki
reply other threads:[~2002-06-04 14:12 UTC|newest]
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