[PATCH v2 3/3] arm64: stacktrace: Convert to ARCH_STACKWALK

Miroslav Benes mbenes at suse.cz
Wed Sep 2 05:32:13 EDT 2020


it could be a silly question, but better to ask...

> +	if (regs)
> +		start_backtrace(&frame, regs->regs[29], regs->pc);
> +	else
> +		start_backtrace(&frame, thread_saved_fp(task),
> +				thread_saved_pc(task));

Would this also work for task == current? Given that the original code had

> -		start_backtrace(&frame,
> -				(unsigned long)__builtin_frame_address(0),
> -				(unsigned long)__save_stack_trace);

for the case, which seems correct (but I don't know much about arm64 arch 
in the kernel).

Otherwise, I did not spot anything suspicious or wrong.


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