From: Eli Zaretskii <eliz@gnu.org>
To: gdb@sources.redhat.com
Subject: Re: text file formats
Date: Thu, 06 Apr 2006 03:47:00 -0000 [thread overview]
Message-ID: <uirpn74bl.fsf@gnu.org> (raw)
In-Reply-To: <20060405233938.GA11013@nevyn.them.org> (message from Daniel Jacobowitz on Wed, 5 Apr 2006 19:39:38 -0400)
> Date: Wed, 5 Apr 2006 19:39:38 -0400
> From: Daniel Jacobowitz <drow@false.org>
>
> GDB does something much simpler. It opens the file in text mode and
> lets the C library sort it out.
>
> Well, usually. In search and reverse search it sometimes uses a
> similar but slightly simpler algorithm: ignore '\r' if followed by
> '\n'. I'm not sure why those are done in binary mode.
I think it's because GDB counts characters and then lseeks to the
point it thinks it should display. If the library's text-mode I/O
converts \r\n to \n, this seeks will only work reliably in binary
mode, since most DOS/Windows libraries don't seek to the correct place
(the only exception from this rule I know of is the DJGPP library).
next prev parent reply other threads:[~2006-04-06 3:47 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-05 22:31 Bob Rossi
2006-04-05 23:39 ` Daniel Jacobowitz
2006-04-06 0:14 ` Bob Rossi
2006-04-06 1:17 ` Daniel Jacobowitz
2006-04-06 3:27 ` Bob Rossi
2006-04-06 3:35 ` Eli Zaretskii
2006-04-06 5:06 ` Daniel Jacobowitz
2006-04-06 13:03 ` Daniel Jacobowitz
2006-04-06 14:01 ` Bob Rossi
2006-04-06 14:41 ` Daniel Jacobowitz
2006-04-06 19:20 ` Eli Zaretskii
2006-04-06 19:32 ` Bob Rossi
2006-04-06 23:55 ` Daniel Jacobowitz
2006-04-07 13:33 ` Eli Zaretskii
2006-04-06 20:55 ` Paul Koning
2006-04-07 11:54 ` Eli Zaretskii
2006-04-06 19:07 ` Eli Zaretskii
2006-04-06 3:47 ` Eli Zaretskii [this message]
2006-04-06 4:29 ` Daniel Jacobowitz
2006-04-06 4:30 ` Daniel Jacobowitz
2006-04-06 3:43 ` Eli Zaretskii
2006-04-06 13:35 ` Bob Rossi
2006-04-06 19:01 ` Eli Zaretskii
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