arch/loongarch/kernel/unwind_guess.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2022 Loongson Technology Corporation Limited
   4  */
   5 #include <asm/unwind.h>
   6
   7 unsigned long unwind_get_return_address(struct unwind_state *state)
   8 {
   9         return __unwind_get_return_address(state);
  10 }
  11 EXPORT_SYMBOL_GPL(unwind_get_return_address);
  12
  13 void unwind_start(struct unwind_state *state, struct task_struct *task,
  14                     struct pt_regs *regs)
  15 {
  16         __unwind_start(state, task, regs);
  17         if (!unwind_done(state) && !__kernel_text_address(state->pc))
  18                 unwind_next_frame(state);
  19 }
  20 EXPORT_SYMBOL_GPL(unwind_start);
  21
  22 bool unwind_next_frame(struct unwind_state *state)
  23 {
  24         return default_next_frame(state);
  25 }
  26 EXPORT_SYMBOL_GPL(unwind_next_frame);