From: Ian Lance Taylor <ian@cygnus.com>
To: robertl@dgii.com
Cc: gas2@cygnus.com
Subject: Re: pushl computed immediate address on 2.8.1
Date: Fri, 02 Jan 1998 13:06:00 -0000 [thread overview]
Message-ID: <199801022106.QAA01775@subrogation.cygnus.com> (raw)
In-Reply-To: <19980102144041.15293@dgii.com>
Date: Fri, 2 Jan 1998 14:40:41 -0600
From: Robert Lipe <robertl@dgii.com>
I was thinking this was a bug in the SCO x86 assembler becuase it worked
under GAS for Linux. However, after some prodding form the egcs folks
that really know PIC, I'm wondering if this is actually a construct that
GAS should produce an error for becuase GCC shouldn't emit it.
The problem is that
pushl $.LC0@GOTOFF(%ebx)
seems to assemble just like
pushl $LC0
so it ends up generating an push of an absolute address once the
linker gets done with it.
This happens because when gas sees the '$', it passes the rest of the
line to the expression parsing code. The expression parser doesn't
recognize the '@', so it just returns .LC0. gas then fails to notice
that part of the line wasn't parsed.
Does this sound right at all? Should GAS error on this?
It sounds wrong, and I'll change gas to emit an error.
Ian
next prev parent reply other threads:[~1998-01-02 13:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-01-02 12:41 Robert Lipe
1998-01-02 13:06 ` Ian Lance Taylor [this message]
1998-01-02 13:26 ` Robert Lipe
1998-01-09 20:42 ` H.J. Lu
1998-01-09 23:02 ` Robert Lipe
1998-01-10 14:25 ` H.J. Lu
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