From: "Eli Zaretskii" <eliz@is.elta.co.il>
Cc: bug-gnu-emacs@gnu.org
Subject: Re: `print' does not print
Date: Sat, 23 Mar 2002 10:54:21 +0200 [thread overview]
Message-ID: <1858-Sat23Mar2002105421+0200-eliz@is.elta.co.il> (raw)
In-Reply-To: <15515.44484.750836.448899@jupiter.akutech-local.de> (message from Ralf Fassel on Fri, 22 Mar 2002 23:18:44 +0100)
> Date: Fri, 22 Mar 2002 23:18:44 +0100
> From: Ralf Fassel <ralf@akutech.de>
>
> So there _is_ a difference: cc fills the struct, gcc doesn't.
Yes. The important part in the difference is that with cc, a new
buffer is allocated to hold the buffered characters, while in the gcc
build, _base stays at 0x0, i.e. the buffer wasn't allocated. (It is
normal for buffered I/O routines to start with the buffer of teh FILE
object unallocated, and only allocate it the first time any operation
is requested for that FILE object.)
> gcc:
>
> fwrite () at engine.c:601
> _wrtchk () at exportent.c:396
> ! setoserror () at aio.c:314
> _wrtchk () at exportent.c:383
> 383 exportent.c: No such file or directory.
> fwrite () at engine.c:554
> printchar (ch=34, fun=273132596) at print.c:334
setoserror means there's some kind of error where it should have
allocated the buffer (that's the _findbuf call in the cc build, I
guess). Can you zero out errno before the call to fwrite, and see if
it gets any value after fwrite returns?
> Program received signal SIGTRAP, Trace/breakpoint trap.
>
> and I always get that SIGTRAP which restarts the fwrite again, but the
> difference at ! is obvious.
Probably a bug in GDB (SIGTRAP means that a breakpoint fired, but GDB
didn't think there was a breakpoint at that place in the program).
Anyway, this is a point where I'd strongly suggest compiling the
library routines with enough debug info to be able to step through
the library code and see what's wrong with Emacs. I guess in your
case it's hard, since the library is proprietary, but the other
report about the same behavior was for GNU/Linux, where we have
glibc. Can someone please step through the glibc code in this case
and see what's going on?
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next prev parent reply other threads:[~2002-03-23 8:54 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200203202019.g2KKJfs4410490@jupiter.akutech-local.de>
[not found] ` <ap3lmcnkjy4.fsf@fosters.umd.edu>
2002-03-21 16:25 ` `print' does not print Eli Zaretskii
2002-03-21 17:10 ` D. Goel
2002-03-21 18:49 ` Ralf Fassel
2002-03-21 20:15 ` Ralf Fassel
2002-03-21 21:14 ` Ralf Fassel
2002-03-22 10:17 ` Eli Zaretskii
2002-03-22 10:41 ` Ralf Fassel
2002-03-22 11:58 ` Eli Zaretskii
2002-03-22 14:22 ` Ralf Fassel
2002-03-22 17:00 ` Eli Zaretskii
2002-03-22 17:47 ` Ralf Fassel
2002-03-22 18:35 ` Eli Zaretskii
2002-03-22 19:17 ` Ralf Fassel
2002-03-22 20:11 ` Eli Zaretskii
2002-03-22 22:18 ` Ralf Fassel
2002-03-23 8:54 ` Eli Zaretskii [this message]
2002-03-23 14:19 ` Ralf Fassel
2002-03-23 16:48 ` Eli Zaretskii
2002-03-23 17:10 ` Ralf Fassel
2002-03-22 20:44 ` Stefan Monnier
2002-03-23 16:13 ` Richard Stallman
2002-03-24 16:51 ` Ralf Fassel
2002-03-24 18:16 ` Eli Zaretskii
2002-03-24 20:22 ` Ralf Fassel
2002-03-25 6:02 ` Eli Zaretskii
2002-03-25 13:47 ` Ralf Fassel
2002-03-25 14:35 ` Eli Zaretskii
2002-03-25 14:49 ` David Kaelbling
2002-03-25 20:05 ` Eli Zaretskii
2002-03-25 20:15 ` David Kaelbling
2002-03-26 5:46 ` Eli Zaretskii
2002-03-26 14:20 ` David Kaelbling
2002-03-26 14:28 ` Eli Zaretskii
2002-03-26 14:43 ` Ralf Fassel
2002-03-25 17:41 ` Ralf Fassel
2002-03-25 17:55 ` David Kaelbling
2002-03-25 20:14 ` Eli Zaretskii
2002-03-25 21:33 ` Ralf Fassel
2002-03-26 5:48 ` Eli Zaretskii
2002-03-26 14:43 ` David Kaelbling
2002-03-26 17:30 ` Ralf Fassel
2002-03-27 5:49 ` Eli Zaretskii
2002-03-27 9:00 ` Ralf Fassel
2002-03-27 9:10 ` Eli Zaretskii
2002-04-12 9:37 ` Eli Zaretskii
2002-04-12 11:31 ` Ralf Fassel
[not found] ` <15542.50594.404120.372721@jupiter.akutech-local.de>
2002-04-12 15:08 ` David Kaelbling
2002-04-13 10:33 ` Eli Zaretskii
2002-04-13 10:52 ` Eli Zaretskii
2002-04-13 19:06 ` Richard Stallman
2002-03-25 12:01 ` Richard Stallman
2002-03-22 12:24 ` Richard Stallman
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