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// 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));
state->error = true;
return false;
}
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