1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 4 * Copyright (C) 2013 Richard Weinberger <richrd@nod.at>
 
 
 
 
 5 */
 6
 7#include <linux/kallsyms.h>
 8#include <linux/kernel.h>
 9#include <linux/module.h>
10#include <linux/sched.h>
11#include <linux/sched/debug.h>
12#include <linux/sched/task_stack.h>
13
14#include <asm/sysrq.h>
15#include <asm/stacktrace.h>
16#include <os.h>
17
18static void _print_addr(void *data, unsigned long address, int reliable)
19{
20	const char *loglvl = data;
21
22	printk("%s [<%08lx>] %s%pS\n", loglvl, address, reliable ? "" : "? ",
23		(void *)address);
24}
25
26static const struct stacktrace_ops stackops = {
27	.address = _print_addr
28};
29
30void show_stack(struct task_struct *task, unsigned long *stack,
31		       const char *loglvl)
32{
 
33	struct pt_regs *segv_regs = current->thread.segv_regs;
34	int i;
35
36	if (!segv_regs && os_is_signal_stack()) {
37		pr_err("Received SIGSEGV in SIGSEGV handler,"
38				" aborting stack trace!\n");
39		return;
40	}
41
42	if (!stack)
43		stack = get_stack_pointer(task, segv_regs);
44
45	printk("%sStack:\n", loglvl);
 
46	for (i = 0; i < 3 * STACKSLOTS_PER_LINE; i++) {
47		if (kstack_end(stack))
48			break;
49		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
50			pr_cont("\n");
51		pr_cont(" %08lx", READ_ONCE_NOCHECK(*stack));
52		stack++;
53	}
 
54
55	printk("%sCall Trace:\n", loglvl);
56	dump_trace(current, &stackops, (void *)loglvl);
 
57}

 
 1/*
 2 * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 3 * Copyright (C) 2013 Richard Weinberger <richrd@nod.at>
 4 *
 5 * This program is free software; you can redistribute it and/or modify
 6 * it under the terms of the GNU General Public License version 2 as
 7 * published by the Free Software Foundation.
 8 */
 9
10#include <linux/kallsyms.h>
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/sched.h>
 
 
 
14#include <asm/sysrq.h>
15#include <asm/stacktrace.h>
16#include <os.h>
17
18static void _print_addr(void *data, unsigned long address, int reliable)
19{
20	pr_info(" [<%08lx>]", address);
21	pr_cont(" %s", reliable ? "" : "? ");
22	print_symbol("%s", address);
23	pr_cont("\n");
24}
25
26static const struct stacktrace_ops stackops = {
27	.address = _print_addr
28};
29
30void show_stack(struct task_struct *task, unsigned long *stack)
 
31{
32	unsigned long *sp = stack;
33	struct pt_regs *segv_regs = current->thread.segv_regs;
34	int i;
35
36	if (!segv_regs && os_is_signal_stack()) {
37		pr_err("Received SIGSEGV in SIGSEGV handler,"
38				" aborting stack trace!\n");
39		return;
40	}
41
42	if (!stack)
43		sp = get_stack_pointer(task, segv_regs);
44
45	pr_info("Stack:\n");
46	stack = sp;
47	for (i = 0; i < 3 * STACKSLOTS_PER_LINE; i++) {
48		if (kstack_end(stack))
49			break;
50		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
51			pr_cont("\n");
52		pr_cont(" %08lx", *stack++);
 
53	}
54	pr_cont("\n");
55
56	pr_info("Call Trace:\n");
57	dump_trace(current, &stackops, NULL);
58	pr_info("\n");
59}