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56 lines
1.3 KiB
56 lines
1.3 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
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* Copyright (C) 2013 Richard Weinberger <[email protected]> |
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*/ |
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#include <linux/kallsyms.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/sched.h> |
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#include <linux/sched/debug.h> |
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#include <linux/sched/task_stack.h> |
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#include <asm/sysrq.h> |
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#include <asm/stacktrace.h> |
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#include <os.h> |
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static void _print_addr(void *data, unsigned long address, int reliable) |
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{ |
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const char *loglvl = data; |
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printk("%s [<%08lx>] %s%pS\n", loglvl, address, reliable ? "" : "? ", |
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(void *)address); |
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} |
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static const struct stacktrace_ops stackops = { |
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.address = _print_addr |
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}; |
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void show_stack(struct task_struct *task, unsigned long *stack, |
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const char *loglvl) |
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{ |
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struct pt_regs *segv_regs = current->thread.segv_regs; |
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int i; |
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if (!segv_regs && os_is_signal_stack()) { |
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pr_err("Received SIGSEGV in SIGSEGV handler," |
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" aborting stack trace!\n"); |
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return; |
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} |
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if (!stack) |
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stack = get_stack_pointer(task, segv_regs); |
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printk("%sStack:\n", loglvl); |
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for (i = 0; i < 3 * STACKSLOTS_PER_LINE; i++) { |
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if (kstack_end(stack)) |
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break; |
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if (i && ((i % STACKSLOTS_PER_LINE) == 0)) |
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pr_cont("\n"); |
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pr_cont(" %08lx", *stack++); |
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} |
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printk("%sCall Trace:\n", loglvl); |
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dump_trace(current, &stackops, (void *)loglvl); |
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}
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