From: Jeffrey A Law <law@cygnus.com>
To: Alan Modra <alan@spri.levels.unisa.edu.au>
Cc: gcc2@cygnus.com, egcs@cygnus.com, gas2@cygnus.com
Subject: Re: ASM_COMMENT_START and gas divide operator
Date: Wed, 06 May 1998 18:34:00 -0000 [thread overview]
Message-ID: <24400.894504792@hurl.cygnus.com> (raw)
In-Reply-To: <Pine.LNX.3.96.980501124359.28262A-100000@mullet.Levels.UniSA.Edu.Au>
In message <Pine.LNX.3.96.980501124359.28262A-100000@mullet.Levels.UniSA.Edu.ou write:
> There is a problem with using "/" to start comments, such as those
> emitted by gcc's -fverbose-asm. If gas needs to support "/" meaning
> the start of a comment anywhere on a line, then the gas division
> operator is killed, sometimes silently. For instance:
> asm("pushl $FOO/2")
> is treated as if the programmer wrote
> asm("pushl $FOO")
>
> Of course, this is only a problem with hand-coded assembly, but it
> would be nice to fix gas and gcc. At least on linux, where the only
> assembler used with gcc is gas, we should be able to make the
> following change without causing too many problems.
>
> * config/linux.h (ASM_COMMENT_START): Define as "#"
> * config/linux-aout.h (ASM_COMMENT_START): Likewise
Thanks. I've installed this into egcs.
It's possible we'll get some ASM_COMMENT_START redefinitions because
of this. If so, we'll have to squash 'em.
jeff
next prev parent reply other threads:[~1998-05-06 18:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-04-30 22:29 Alan Modra
1998-05-06 18:34 ` Jeffrey A Law [this message]
1998-05-07 1:53 ` Andreas Schwab
1998-05-07 3:59 ` Alan Modra
1998-05-07 2:39 ` Andreas Schwab
1998-05-14 0:35 ` Martynas Kunigelis
1998-05-14 9:37 ` Jeffrey A Law
1998-05-14 10:17 ` Craig Burley
1998-05-14 13:08 ` Jeffrey A Law
1998-05-14 15:07 ` Craig Burley
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