// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2022-2023 Loongson Technology Corporation Limited */ #include <linux/kernel.h> #include <linux/ftrace.h> #include <asm/unwind.h> bool default_next_frame(struct unwind_state *state) { struct stack_info *info = &state->stack_info; unsigned long addr; if (unwind_done(state)) return false; do { for (state->sp += sizeof(unsigned long); state->sp < info->end; state->sp += sizeof(unsigned long)) { addr = *(unsigned long *)(state->sp); state->pc = unwind_graph_addr(state, addr, state->sp + 8); if (__kernel_text_address(state->pc)) return true; } state->sp = info->next_sp; } while (!get_stack_info(state->sp, state->task, info)); return false; }