arch/s390/kernel/stacktrace.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Stack trace management functions
   4  *
   5  *  Copyright IBM Corp. 2006
   6  *  Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
   7  */
   8
   9 #include <linux/stacktrace.h>
  10 #include <asm/stacktrace.h>
  11 #include <asm/unwind.h>
  12
  13 void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie,
  14                      struct task_struct *task, struct pt_regs *regs)
  15 {
  16         struct unwind_state state;
  17         unsigned long addr;
  18
  19         unwind_for_each_frame(&state, task, regs, 0) {
  20                 addr = unwind_get_return_address(&state);
  21                 if (!addr || !consume_entry(cookie, addr, false))
  22                         break;
  23         }
  24 }