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bug#8562: Emacs 23.1 and later don't work in windows 98
From: |
Eli Zaretskii |
Subject: |
bug#8562: Emacs 23.1 and later don't work in windows 98 |
Date: |
Wed, 25 May 2011 19:44:31 +0300 |
> Date: Wed, 25 May 2011 12:53:29 +0200
> From: oslsachem <oslsachem@gmail.com>
> Cc: 8562@debbugs.gnu.org
>
> > If the value of f->line_height is indeed bogus, please put a
> > breakpoint in x_new_font, run Emacs again, and when the breakpoint
> > breaks, step through that function and see why it doesn't put a valid
> > value into this field. This should happen on line 5280 of w32term.c:
> >
> > FRAME_LINE_HEIGHT (f) = font->height;
> >
> > If this indeed assigns a bogus value, please show the contents of the
> > `font' structure ("print *font" at GDB prompt).
>
> http://www.speedyshare.com/files/28635231/Emacs-23.3GDBfont.txt
> (gdb) p font->height
> $2 = 2087156864
> (gdb) p *font
> $3 = {
> size = 1075838994,
> next = 0x37fc800,
> props = {50024618, 50024882, 52291426, 50024834, 50018570, 102720, 102528,
> 102656, 52, 49805314, 440, 49805314, 50073638, 49805314, 52216865,
> 52216881, 49805314, 50018522},
> max_width = 2113995264,
> pixel_size = 13,
> height = 2087156864,
> space_width = 101581574,
> average_width = 101581574,
> min_width = 101581574,
> ascent = 2053600883,
> descent = 33555981,
> underline_thickness = 0,
> underline_position = -1,
> vertical_centering = 0,
> encoding_type = 0 '\000',
> baseline_offset = 0,
> relative_compose = 0,
> default_ascent = 2053600883,
> font_encoder = 0x0,
> driver = 0x151c220,
> encoding_charset = -1,
> repertory_charset = -1
> }
Looks like the font structure is garbled, at least most of its fields
are.
On Windows XP I see this instead:
(gdb) p *font
$1 = {
size = 1075838994,
next = 0x101ed800,
props = {48349354, 48349618, 50593634, 48349570, 48343306, 102720, 102528,
102656, 52, 48130050, 440, 48130050, 48395622, 48130050, 50523489,
50523505, 48130050, 48343258},
max_width = 9,
pixel_size = 13,
height = 16,
space_width = 8,
average_width = 8,
min_width = 8,
ascent = 12,
descent = 4,
underline_thickness = 1,
underline_position = 3,
vertical_centering = 0,
encoding_type = 0 '\000',
baseline_offset = 0,
relative_compose = 0,
default_ascent = 12,
font_encoder = 0x0,
driver = 0x153c300,
encoding_charset = -1,
repertory_charset = -1
}
We are entering an area of Emacs where I don't know enough, so I hope
Jason will chime in RSN...
Anyway. Could you please step through x_default_font_parameter, and
see which font it picks up here:
font = !NILP (font_param) ? font_param
: x_get_arg (dpyinfo, parms, Qfont, "font", "Font", RES_TYPE_STRING);
if (!STRINGP (font))
{
int i;
static char *names[]
= { "Courier New-10",
"-*-Courier-normal-r-*-*-13-*-*-*-c-*-iso8859-1",
"-*-Fixedsys-normal-r-*-*-12-*-*-*-c-*-iso8859-1",
"Fixedsys",
NULL };
for (i = 0; names[i]; i++)
{
font = font_open_by_name (f, names[i]);
if (! NILP (font))
break;
}
if (NILP (font))
error ("No suitable font was found");
A word about displaying values of variables declared Lisp_Object. You
need to start GDB from a directory where you have the .gdbinit file
that comes with the source tarball (you will find it in the src/
directory). Then use the "pp" command instead of "p" or "print" to
display values of Lisp_Object variables.
After you determine which font is being picked up in the above loop,
please put a breakpoint in uniscribe_open and see if it and especially
w32font_open_internal that it calls succeed to open the font; if they
fail, please try to see why.
Finally, if you start Emacs with "emacs -Q -xrm Emacs.fontBackend:gdi",
does it also aborts in the same way, i.e. inside window_box_height?
Thanks.
- bug#8562: Emacs 23.1 and later don't work in windows 98, (continued)
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/06
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/22
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/23
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/24
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/24
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/24
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/25
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/25
- bug#8562: Emacs 23.1 and later don't work in windows 98,
Eli Zaretskii <=
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/25
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/27
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/27
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/27
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/27
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/27
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/27
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/27
- bug#8562: Emacs 23.1 and later don't work in windows 98, oslsachem, 2011/05/30
- bug#8562: Emacs 23.1 and later don't work in windows 98, Eli Zaretskii, 2011/05/30