From: Paul Eggert <eggert@cs.ucla.edu>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: emacs-devel@gnu.org
Subject: Re: inlinable functions instead of macros
Date: Fri, 17 Aug 2012 16:59:47 -0700 [thread overview]
Message-ID: <502EDAF3.6030005@cs.ucla.edu> (raw)
In-Reply-To: <jwvsjblozey.fsf-monnier+emacs@gnu.org>
On 08/17/2012 04:48 PM, Stefan Monnier wrote:
> While inlinable functions are much cleaner than macros, they have
> a very serious downside: you just end up with
>
> lisp.h:2416: Emacs fatal error: assertion failed: found == !EQ (blv->defcell, blv->valcell)
>
> I.e. the file&line info is always the same rather than giving the
> file&line where the inlinable function was called.
On systems that use glibc we could adjust eassert so that it
also prints a backtrace, using glibc's 'backtrace' function. See
<http://www.gnu.org/software/libc/manual/html_node/Backtraces.html>.
This would not be quite the same thing, as it would print function
names, insn offsets, and return addresses; but it would recapture
some of the ground lost here, and the backtrace info would in some
cases be more useful than what we have now.
next prev parent reply other threads:[~2012-08-17 23:59 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-17 23:48 inlinable functions instead of macros Stefan Monnier
2012-08-17 23:59 ` Paul Eggert [this message]
2012-08-18 22:15 ` Daniel Colascione
2012-08-18 22:55 ` John Yates
2012-08-19 4:22 ` Richard Stallman
2012-08-21 17:50 ` Stefan Monnier
2012-08-22 9:24 ` C backtraces for Emacs Paul Eggert
2012-08-22 16:01 ` Eli Zaretskii
2012-08-22 16:39 ` Paul Eggert
2012-08-23 0:40 ` Daniel Colascione
2012-08-23 16:55 ` Eli Zaretskii
2012-08-24 10:48 ` Paul Eggert
2012-08-25 4:41 ` Paul Eggert
2012-08-25 5:57 ` Eli Zaretskii
2012-08-22 9:28 ` inlinable functions instead of macros Paul Eggert
2012-08-22 9:48 ` Andreas Schwab
2012-08-22 14:31 ` Stefan Monnier
2012-08-24 21:37 ` Paul Eggert
2012-08-25 1:38 ` Tom Tromey
2012-08-25 2:58 ` Paul Eggert
2012-08-25 5:35 ` Eli Zaretskii
2012-08-25 20:13 ` Tom Tromey
2012-08-26 4:42 ` Paul Eggert
2012-08-25 2:05 ` Stefan Monnier
2012-08-26 5:31 ` Paul Eggert
2012-08-22 16:03 ` Eli Zaretskii
2012-08-18 19:08 ` Richard Stallman
2012-08-18 20:57 ` Paul Eggert
2012-08-18 21:03 ` Eli Zaretskii
2012-08-18 21:31 ` Paul Eggert
2012-08-19 2:45 ` Eli Zaretskii
2012-08-18 21:14 ` Óscar Fuentes
2012-08-19 17:28 ` Florian Weimer
2012-08-20 20:38 ` Sam Steingold
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