linux-kernel - uprobe_events can't accept paths that contain spaces

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Message-ID: <CAGqt0zxtKboY1PWRN4kCF3uTeiH9ZJtj280ARvGWeNtR_ik0eQ@mail.gmail.com>
Date: Fri, 22 Nov 2024 00:42:51 +0000
From: Yuxuan Shui <yshuiv7@...il.com>
To: linux-trace-kernel@...r.kernel.org
Cc: Steven Rostedt <rostedt@...dmis.org>, Masami Hiramatsu <mhiramat@...nel.org>, 
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, open list <linux-kernel@...r.kernel.org>
Subject: uprobe_events can't accept paths that contain spaces

Hi,

I hit this problem accidentally when one of the shared libraries I was
looking at is located in a directory with spaces in its name. `perf
probe` reported "Failed to write event: Invalid argument".

If I understand the code correctly, strings written into uprobe_events
are strictly splitted at whitespaces (by `argv_split`). This seems
like an unfortunate restriction. If I submit a patch to introduce
support for either quotes (") or escapes (\), will that be considered?

(For context I am running something that expects its libraries to be
located at fixed paths, so moving them to a different path would be
awkward at best.)

Thanks.

-- 

Regards
Yuxuan Shui