From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: monnier@IRO.UMontreal.CA, emacs-devel@gnu.org
Subject: Re: Lisp_Marker size on 32bit systems
Date: Fri, 7 Sep 2018 06:45:48 -0700 [thread overview]
Message-ID: <b078491f-5d6f-68c8-b70d-41537a37f463@cs.ucla.edu> (raw)
In-Reply-To: <83bm99vijd.fsf@gnu.org>
Eli Zaretskii wrote:
> The current master fails to build in the x86 32-bit configuration with
> wide ints:
>
> In file included from lisp.h:35:0,
> from window.c:25:
> ../lib/verify.h:207:21: error: static assertion failed: "verify (header_size == sizeof (union vectorlike_header))"
It works for me in that configuration in Fedora 28. I get the following values;
what do you get?
sizeof (ptrdiff_t) = 4
sizeof (union vectorlike_header) = 4
offsetof (struct Lisp_Vector, contents) = 4
offsetof (struct Lisp_Sub_Char_Table, depth) == 4
offsetof (struct Lisp_Sub_Char_Table, contents) == 12
If you're getting different values, it could be that the fact that the code ever
worked at all is just luck.
I am using gcc 8.1.1 20180712 (Red Hat 8.1.1-5), and configure this way
(because many modules don't work in 32-bit mode):
./configure --with-wide-int CC=gcc -m32 -march=native --enable-gcc-warnings
--without-sound --without-dbus --without-file-notification --without-gconf
--without-gif --without-gsettings --without-imagemagick --without-rsvg
--with-x-toolkit=no --with-modules
next prev parent reply other threads:[~2018-09-07 13:45 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-06 0:41 Lisp_Marker size on 32bit systems Stefan Monnier
2018-09-06 6:51 ` Paul Eggert
2018-09-06 12:17 ` Stefan Monnier
2018-09-07 7:15 ` Paul Eggert
2018-09-07 8:05 ` Eli Zaretskii
2018-09-07 13:45 ` Paul Eggert [this message]
2018-09-07 14:12 ` GDB and compiler-operations (was: Lisp_Marker size on 32bit systems) Stefan Monnier
2018-09-07 14:23 ` Eli Zaretskii
2018-09-07 15:16 ` GDB and compiler-operations Andreas Schwab
2018-09-07 15:48 ` GDB and compiler-operations (was: Lisp_Marker size on 32bit systems) Paul Eggert
2018-09-07 15:58 ` GDB and compiler-operations Stefan Monnier
2018-09-07 17:11 ` Eli Zaretskii
2018-09-07 17:15 ` Paul Eggert
2018-09-07 19:59 ` Tom Tromey
2018-09-07 14:19 ` Lisp_Marker size on 32bit systems Eli Zaretskii
2018-09-07 16:27 ` Paul Eggert
2018-09-07 17:16 ` Eli Zaretskii
2018-09-07 18:13 ` Paul Eggert
2018-09-07 18:32 ` Eli Zaretskii
2018-09-07 19:05 ` Paul Eggert
2018-09-07 19:22 ` Eli Zaretskii
2018-09-07 12:16 ` Stefan Monnier
2018-09-07 19:04 ` Paul Eggert
2018-09-07 19:45 ` Stefan Monnier
2018-09-07 21:03 ` Paul Eggert
2018-09-08 1:54 ` Stefan Monnier
2018-09-08 3:04 ` Paul Eggert
2018-09-08 3:10 ` Stefan Monnier
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