[QUESTION] Can uprobe_event support @ADDR, $retval, offs(FETCHARG)?

[Hyeoncheol Lee]

Hi,

uprobe_event only supports %REG arguments. I think that memory fetch,
return value fetch, memory dereference functions in
kernel/trace/trace_probe.c are good for uprobe_event. So with a little
modification of parse_probe_arg(), uprobe_event can support @ADDR,
$retval, offs(FETCHARGS) except @SYM, $stack, $stackN. Is it right?

Thanks,
Hyeoncheol
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