stacktrace.c (41c177cf354126a22443b5c80cec9fdd313e67e1) stacktrace.c (cb8a2ef0848ca80d67d6d56e2df757cfdf6b3355)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Stack trace management functions
4 *
5 * Copyright (C) 2022 Loongson Technology Corporation Limited
6 */
7#include <linux/sched.h>
8#include <linux/stacktrace.h>

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24 if (task == current) {
25 regs->regs[3] = (unsigned long)__builtin_frame_address(0);
26 regs->csr_era = (unsigned long)__builtin_return_address(0);
27 } else {
28 regs->regs[3] = thread_saved_fp(task);
29 regs->csr_era = thread_saved_ra(task);
30 }
31 regs->regs[1] = 0;
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Stack trace management functions
4 *
5 * Copyright (C) 2022 Loongson Technology Corporation Limited
6 */
7#include <linux/sched.h>
8#include <linux/stacktrace.h>

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24 if (task == current) {
25 regs->regs[3] = (unsigned long)__builtin_frame_address(0);
26 regs->csr_era = (unsigned long)__builtin_return_address(0);
27 } else {
28 regs->regs[3] = thread_saved_fp(task);
29 regs->csr_era = thread_saved_ra(task);
30 }
31 regs->regs[1] = 0;
32 regs->regs[22] = 0;
32 }
33
34 for (unwind_start(&state, task, regs);
35 !unwind_done(&state); unwind_next_frame(&state)) {
36 addr = unwind_get_return_address(&state);
37 if (!addr || !consume_entry(cookie, addr))
38 break;
39 }

--- 41 unchanged lines hidden --- 		33 }
34
35 for (unwind_start(&state, task, regs);
36 !unwind_done(&state); unwind_next_frame(&state)) {
37 addr = unwind_get_return_address(&state);
38 if (!addr || !consume_entry(cookie, addr))
39 break;
40 }

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