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Kprobe and uprobe events can add a "system" to the events that are created via the kprobe_events and uprobe_events files respectively. If they do not include a "system" in the name, then the default "kprobes" or "uprobes" is used. The current notation to specify a system for one of these probe events is to add a '/' delimiter in the name, where the content before the '/' will be the system to use, and the content after will be the event name. echo 'p:my_system/my_event' > kprobe_events But this is inconsistent with the way histogram triggers separate their system / event names. The histogram triggers use a '.' delimiter, which can be confusing. To allow this to be more consistent, as well as keep backward compatibility, allow the kprobe and uprobe events to denote a system name with either a '/' or a '.'. That is: echo 'p:my_system/my_event' > kprobe_events is equivalent to: echo 'p:my_system.my_event' > kprobe_events Link: https://lore.kernel.org/linux-trace-devel/20210813004448.51c7de69ce432d338f4d226b@kernel.org/ Link: https://lkml.kernel.org/r/20210817035027.580493202@goodmis.org Suggested-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.