On Sat, 5 May 2018 11:38:03 +0900 Masami Hiramatsu mhiramat@kernel.org wrote:
On Fri, 4 May 2018 12:06:42 -0400 Steven Rostedt rostedt@goodmis.org wrote:
On Sat, 5 May 2018 00:48:28 +0900 Masami Hiramatsu mhiramat@kernel.org wrote:
So the syntax will be
p[:EVENT] SYM[(CAST)|+OFFS] [FETCHARG]
And here is an example;
p:myevent vfs_read(void *file, char *buf, size_t count, void *pos) $arg1 $arg2
If we do this, why bother with $arg1 $arg2?
User may want to trace only some of them. :)
Yes, and this is why I like my solution of the NULL parameter, and you don't need to show anything after what you want.
p:myevent vfs_read(void *file, NULL, size_t count)
would only trace file and count, and ignore buf and pos.
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