On Tue, 2 Jul 2024 12:53:20 -0400 Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > On Wed, 3 Jul 2024 00:19:05 +0900 > Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> wrote: > > > > BTW, is this (batched register/unregister APIs) something you'd like > > > to use from the tracefs-based (or whatever it's called, I mean non-BPF > > > ones) uprobes as well? Or there is just no way to even specify a batch > > > of uprobes? Just curious if you had any plans for this. > > > > No, because current tracefs dynamic event interface is not designed for > > batched registration. I think we can expand it to pass wildcard symbols > > (for kprobe and fprobe) or list of addresses (for uprobes) for uprobe. > > Um, that maybe another good idea. > > I don't see why not. The wild cards were added to the kernel > specifically for the tracefs interface (set_ftrace_filter). Sorry for mislead you, I meant current "dynamic_events" interface does not support the wildcard places. And I agree that we can update it to support something like p:multi_uprobe 0x1234,0x2234,0x3234@/bin/foo $arg1 $arg2 $arg3 (note: kernel does not read the symbols in user binary) Thank you, -- Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
