Re: SEGV in enable_glyph_matrix_rows

[Andreas Schwab]

Reiner Steib <address@hidden> writes:

> Maybe I already did something wrong by using `pr' here:
>
> --8<---------------cut here---------------start------------->8---
> (gdb) p matrix
> $1 = (struct glyph_matrix *) 0x9010000
> (gdb) pr
>
> Program received signal SIGPIPE, Broken pipe.
> 0x4070b3a8 in write () from /lib/libc.so.6

You need to make sure that the emacs process has a terminal before you can
use the pr command, because the actual output is produced by calling a
function in the running process.  If the process you are examining has
already crashed then you better not use that command.

> (gdb) xtype
> Argument to arithmetic operation not a number or boolean.

Both pr and xtype and also all the other x* commands expect that the last
printed value is a Lisp_Object.

Andreas.

-- 
Andreas Schwab, SuSE Labs, address@hidden
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