FM / tapset

/usr/share/systemtap/examples/stapgames/tapset/

/usr/share/systemtap/examples/stapgames/tapset

Name	Size	Mode	Actions
audio.stp	1896	0644	edit dl rm
cursor.stp	962	0644	edit dl rm
game.stp	660	0644	edit dl rm
gmtty.stp	1175	0644	edit dl rm
input.stp	2402	0644	edit dl rm

Edit: /usr/share/systemtap/examples/stapgames/tapset/gmtty.stp (1175B)

# TTY related routines for games
# Copyright (C) 2011 Masami Hiramatsu <masami.hiramatsu@gmail.com>
#
# This file is free software and is distributed under the terms of the GNU
# General Public License (GPL); either version 2, or (at your option) any
# later version.

global GM_tty_ws_row, GM_tty_ws_col, GM_tty_name

# Initialize current TTY -- must be called from begin
function game_tty_init:long ()
{
	tty = @cast(task_current(), "task_struct", "kernel")->signal->tty
	if (tty) {
		namep = @cast(tty,"tty_struct", "kernel")->name
		GM_tty_name = kernel_string(namep)
		GM_tty_ws_col = @cast(tty, "tty_struct", "kernel")->winsize->ws_col
		GM_tty_ws_row = @cast(tty, "tty_struct", "kernel")->winsize->ws_row
	}
	return tty
}

probe begin(-100) {
	if (game_tty_init() == 0) {
		print("Failed to get current tty\n")
		exit()
	}
}

probe game.tty.resize = kernel.function("tty_do_resize") {
	if (kernel_string($tty->name) == GM_tty_name) {
		row = $ws->ws_row
		col = $ws->ws_col
	}
}

probe game.tty.resize {
	GM_tty_ws_row = row
	GM_tty_ws_col = col
}

function game_tty_ws_row:long () {
	return GM_tty_ws_row
}

function game_tty_ws_col:long () {
	return GM_tty_ws_col
}

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