Merge tag 'icc-6.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc...
[linux-2.6-microblaze.git] / arch / loongarch / kernel / unwind.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (C) 2022-2023 Loongson Technology Corporation Limited
4  */
5 #include <linux/kernel.h>
6 #include <linux/ftrace.h>
7
8 #include <asm/unwind.h>
9
10 bool default_next_frame(struct unwind_state *state)
11 {
12         struct stack_info *info = &state->stack_info;
13         unsigned long addr;
14
15         if (unwind_done(state))
16                 return false;
17
18         do {
19                 for (state->sp += sizeof(unsigned long);
20                      state->sp < info->end; state->sp += sizeof(unsigned long)) {
21                         addr = *(unsigned long *)(state->sp);
22                         state->pc = unwind_graph_addr(state, addr, state->sp + 8);
23                         if (__kernel_text_address(state->pc))
24                                 return true;
25                 }
26
27                 state->sp = info->next_sp;
28
29         } while (!get_stack_info(state->sp, state->task, info));
30
31         return false;
32 }