+++ /dev/null
-/* drivers/android/kernel_debugger.c
- *
- * Guts of the kernel debugger.
- * Needs something to actually push commands to it.
- *
- * Copyright (C) 2007-2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * 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.
- *
- */
-
-#include <linux/ctype.h>
-#include <linux/device.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/sysrq.h>
-#include <linux/kernel_debugger.h>
-
-#define dprintf(fmt...) (ctxt->printf(ctxt->cookie, fmt))
-
-static void do_ps(struct kdbg_ctxt *ctxt)
-{
- struct task_struct *g, *p;
- unsigned state;
- static const char stat_nam[] = "RSDTtZX";
-
- dprintf("pid ppid prio task pc\n");
- read_lock(&tasklist_lock);
- do_each_thread(g, p) {
- state = p->state ? __ffs(p->state) + 1 : 0;
- dprintf("%5d %5d %4d ", p->pid, p->parent->pid, p->prio);
- dprintf("%-13.13s %c", p->comm,
- state >= sizeof(stat_nam) ? '?' : stat_nam[state]);
- if (state == TASK_RUNNING)
- dprintf(" running\n");
- else
- dprintf(" %08lx\n", thread_saved_pc(p));
- } while_each_thread(g, p);
- read_unlock(&tasklist_lock);
-}
-
-int log_buf_copy(char *dest, int idx, int len);
-extern int do_syslog(int type, char __user *bug, int count);
-static void do_sysrq(struct kdbg_ctxt *ctxt, char rq)
-{
- char buf[128];
- int ret;
- int idx = 0;
- do_syslog(5 /* clear */, NULL, 0);
- handle_sysrq(rq);
- while (1) {
- ret = log_buf_copy(buf, idx, sizeof(buf) - 1);
- if (ret <= 0)
- break;
- buf[ret] = 0;
- dprintf("%s", buf);
- idx += ret;
- }
-}
-
-static void do_help(struct kdbg_ctxt *ctxt)
-{
- dprintf("Kernel Debugger commands:\n");
- dprintf(" ps Process list\n");
- dprintf(" sysrq sysrq options\n");
- dprintf(" sysrq <param> Execute sysrq with <param>\n");
-}
-
-int kernel_debugger(struct kdbg_ctxt *ctxt, char *cmd)
-{
- if (!strcmp(cmd, "ps"))
- do_ps(ctxt);
- if (!strcmp(cmd, "sysrq"))
- do_sysrq(ctxt, 'h');
- if (!strncmp(cmd, "sysrq ", 6))
- do_sysrq(ctxt, cmd[6]);
- if (!strcmp(cmd, "help"))
- do_help(ctxt);
-
- return 0;
-}
-
+++ /dev/null
-/*
- * include/linux/kernel_debugger.h
- *
- * Copyright (C) 2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * 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.
- */
-
-#ifndef _LINUX_KERNEL_DEBUGGER_H_
-#define _LINUX_KERNEL_DEBUGGER_H_
-
-struct kdbg_ctxt {
- int (*printf)(void *cookie, const char *fmt, ...);
- void *cookie;
-};
-
-/* kernel_debugger() is called from IRQ context and should
- * use the kdbg_ctxt.printf to write output (do NOT call
- * printk, do operations not safe from IRQ context, etc).
- *
- * kdbg_ctxt.printf will return -1 if there is not enough
- * buffer space or if you are being aborted. In this case
- * you must return as soon as possible.
- *
- * Return non-zero if more data is available -- if buffer
- * space ran and you had to stop, but could print more,
- * for example.
- *
- * Additional calls where cmd is "more" will be made if
- * the additional data is desired.
- */
-int kernel_debugger(struct kdbg_ctxt *ctxt, char *cmd);
-
-#endif