+++ /dev/null
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction. Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License. This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \brief Monitor to check for stack overflows
- *
- * \version $Id$
- *
- * \author Giovanni Bajo <rasky@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.10 2006/09/20 13:58:42 marco
- *#* Used z modifier instead l.
- *#*
- *#* Revision 1.9 2006/07/19 12:56:27 bernie
- *#* Convert to new Doxygen style.
- *#*
- *#* Revision 1.8 2006/03/22 09:49:22 bernie
- *#* Reduce memory usage.
- *#*
- *#* Revision 1.7 2006/03/13 02:07:14 bernie
- *#* Add TODO item.
- *#*
- *#* Revision 1.6 2006/02/24 01:17:05 bernie
- *#* Update for new emulator.
- *#*
- *#* Revision 1.5 2005/11/04 16:20:02 bernie
- *#* Fix reference to README.devlib in header.
- *#*
- *#* Revision 1.4 2005/04/11 19:10:28 bernie
- *#* Include top-level headers from cfg/ subdir.
- *#*
- *#* Revision 1.3 2004/11/28 23:20:25 bernie
- *#* Remove obsolete INITLIST macro.
- *#*
- *#* Revision 1.2 2004/10/26 09:01:15 bernie
- *#* monitor_rename(): New function.
- *#*
- *#* Revision 1.1 2004/10/03 20:39:03 bernie
- *#* Import in DevLib.
- *#*
- *#* Revision 1.2 2004/10/03 20:36:43 bernie
- *#* Use debug.h instead of drv/kdebug.h; Misc spacing/header fixes.
- *#*
- *#* Revision 1.1 2004/09/30 23:19:30 rasky
- *#* Estratto il monitor degli stack da proc.c in due file a parte: monitor.c/h
- *#* Rinominata monitor_debug_stacks in monitor_report
- *#*/
-
-#include "monitor.h"
-
-#if CONFIG_KERN_MONITOR
-
-#include "proc_p.h"
-#include <mware/list.h>
-#include <drv/timer.h>
-#include <kern/proc.h>
-#include <cfg/macros.h>
-#include <cfg/debug.h>
-
-
-static List MonitorProcs;
-
-
-void monitor_init(void)
-{
- LIST_INIT(&MonitorProcs);
-}
-
-
-void monitor_add(Process* proc, const char* name, cpustack_t* stack_base, size_t stack_size)
-{
- proc->monitor.name = name;
- proc->monitor.stack_base = stack_base;
- proc->monitor.stack_size = stack_size;
-
- ADDTAIL(&MonitorProcs, &proc->monitor.link);
-}
-
-
-void monitor_remove(Process* proc)
-{
- REMOVE(&proc->monitor.link);
-}
-
-void monitor_rename(Process *proc, const char* name)
-{
- proc->monitor.name = name;
-}
-
-/* TODO: use containerof() */
-#define MONITOR_NODE_TO_PROCESS(node) \
- (struct Process *)((char *)(node) - offsetof(struct Process, monitor.link))
-
-size_t monitor_checkStack(cpustack_t* stack_base, size_t stack_size)
-{
- cpustack_t* beg;
- cpustack_t* cur;
- cpustack_t* end;
- size_t sp_free;
-
- beg = stack_base;
- end = stack_base + stack_size / sizeof(cpustack_t) - 1;
-
- if (CPU_STACK_GROWS_UPWARD)
- {
- cur = beg;
- beg = end;
- end = cur;
- }
-
- cur = beg;
- while (cur != end)
- {
- if (*cur != CONFIG_KERN_STACKFILLCODE)
- break;
-
- if (CPU_STACK_GROWS_UPWARD)
- cur--;
- else
- cur++;
- }
-
- sp_free = ABS(cur - beg) * sizeof(cpustack_t);
- return sp_free;
-}
-
-
-void monitor_report(void)
-{
- struct Process* p;
- int i;
-
- if (LIST_EMPTY(&MonitorProcs))
- {
- kputs("No stacks registered in the monitor\n");
- return;
- }
-
- kprintf("%-24s%-8s%-8s%-8s%-8s\n", "Process name", "TCB", "SPbase", "SPsize", "SPfree");
- for (i=0;i<56;i++)
- kputchar('-');
- kputchar('\n');
-
- for (p = MONITOR_NODE_TO_PROCESS(LIST_HEAD(&MonitorProcs));
- p->monitor.link.succ;
- p = MONITOR_NODE_TO_PROCESS(p->monitor.link.succ))
- {
- size_t free = monitor_checkStack(p->monitor.stack_base, p->monitor.stack_size);
- kprintf("%-24s%8p%8p%8zx%8zx\n",
- p->monitor.name, p, p->monitor.stack_base, p->monitor.stack_size, free);
- }
-}
-
-
-static void NORETURN monitor(void)
-{
- struct Process *p;
-
- while (1)
- {
- for (p = MONITOR_NODE_TO_PROCESS(LIST_HEAD(&MonitorProcs));
- p->monitor.link.succ;
- p = MONITOR_NODE_TO_PROCESS(p->monitor.link.succ))
- {
- size_t free = monitor_checkStack(p->monitor.stack_base, p->monitor.stack_size);
-
- if (free < 0x20)
- kprintf("MONITOR: WARNING: Free stack for process '%s' is only %x chars\n",
- p->monitor.name, free);
-
- timer_delay(500);
- }
- }
-}
-
-
-void monitor_start(size_t stacksize, cpustack_t *stack)
-{
- proc_new(monitor, NULL, stacksize, stack);
-}
-
-#endif /* CONFIG_KERN_MONITOR */
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