diff options
Diffstat (limited to 'arch/loongarch/kernel/unwind_guess.c')
| -rw-r--r-- | arch/loongarch/kernel/unwind_guess.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/unwind_guess.c b/arch/loongarch/kernel/unwind_guess.c index e2d2e4f3001f..9ef5f2a47f88 100644 --- a/arch/loongarch/kernel/unwind_guess.c +++ b/arch/loongarch/kernel/unwind_guess.c @@ -26,6 +26,12 @@ void unwind_start(struct unwind_state *state, struct task_struct *task, if (regs) { state->sp = regs->regs[3]; state->pc = regs->csr_era; + } else if (task && task != current) { + state->sp = thread_saved_fp(task); + state->pc = thread_saved_ra(task); + } else { + state->sp = (unsigned long)__builtin_frame_address(0); + state->pc = (unsigned long)__builtin_return_address(0); } state->task = task; |