4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
33 * \brief Monitor to check for stack overflows
37 * \author Giovanni Bajo <rasky@develer.com>
40 #ifndef KERN_MONITOR_H
41 #define KERN_MONITOR_H
43 #include <cpu/types.h>
44 #include <config_kern.h>
46 #if CONFIG_KERN_MONITOR
49 * Start the kernel monitor. It is a special process which checks every second the stacks of the
50 * running processes trying to detect stack overflows.
52 * \param stacksize Size of stack in chars
53 * \param stack Pointer to the stack that will be used by the monitor
55 * \note The stack is provided by the caller so that there is no wasted space if the monitor
58 void monitor_start(size_t stacksize, cpustack_t *stack);
62 * Manually check if a given stack has overflown. This is used to check for stacks
63 * of processes handled externally form the kernel, or for other stacks (for instance
64 * the interrupt supervisor stack).
66 * \note For this function to work, the stack must have been filled at startup with
67 * CONFIG_KERN_STACKFILLCODE.
69 size_t monitor_checkStack(cpustack_t *stack_base, size_t stack_size);
72 /** Print a report of the stack status through kdebug */
73 void monitor_report(void);
76 #endif /* CONFIG_KERN_MONITOR */
77 #endif /* KERN_MONITOR_H */