tim@leeloo:~/gnu/build/linux/emacs/src$ gdb emacs
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This GDB was configured as "i486-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".

DISPLAY = leeloo.anubex.internal:5.0
TERM = xterm
Breakpoint 1 at 0x811cc16: file /home/tim/gnu/src/emacs/src/emacs.c, line 420.
Breakpoint 2 at 0x8137f49: file /home/tim/gnu/src/emacs/src/sysdep.c, line 1133.
(gdb) break Fset_frame_size
Breakpoint 3 at 0x8061896: file /home/tim/gnu/src/emacs/src/frame.c, line 2742.
(gdb) break x_set_window_size
Breakpoint 4 at 0x80df4f6: file /home/tim/gnu/src/emacs/src/xterm.c, line 8847.
(gdb) disable 4
(gdb) commands 3
Type commands for when breakpoint 3 is hit, one per line.
End with a line saying just "end".
>enable 4
>cont
>end
(gdb) commands 4
Type commands for when breakpoint 4 is hit, one per line.
End with a line saying just "end".
>disable 4
>p f->new_text_lines
>p f->new_text_cols
>cont
>end
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /home/tim/gnu/build/linux/emacs/src/emacs
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 31757)]
[Switching to Thread 16384 (LWP 31757)]

Breakpoint 3, Fset_frame_size (frame=147028492, cols=1056, rows=480) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=132, rows=60) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$3 = 0
$4 = 0

Breakpoint 3, Fset_frame_size (frame=147028492, cols=1056, rows=480) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=132, rows=60) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$5 = 60
$6 = 132

Breakpoint 3, Fset_frame_size (frame=147028492, cols=1056, rows=480) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=132, rows=60) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$7 = 0
$8 = 0

Breakpoint 3, Fset_frame_size (frame=147028492, cols=1056, rows=480) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=132, rows=60) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$9 = 0
$10 = 0

Breakpoint 3, Fset_frame_size (frame=147028492, cols=1056, rows=480) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=132, rows=60) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$11 = 0
$12 = 0

Breakpoint 3, Fset_frame_size (frame=147028492, cols=1056, rows=480) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=132, rows=60) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$13 = 60
$14 = 132

Breakpoint 3, Fset_frame_size (frame=147028492, cols=896, rows=384) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=112, rows=48) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$15 = 0
$16 = 0

Breakpoint 3, Fset_frame_size (frame=147028492, cols=896, rows=384) at /home/tim/gnu/src/emacs/src/frame.c:2742
2742    {

Breakpoint 4, x_set_window_size (f=0x8c37a08, change_gravity=1, cols=112, rows=48) at /home/tim/gnu/src/emacs/src/xterm.c:8847
8847      BLOCK_INPUT;
$17 = 0
$18 = 0