Re: [PATCH tracing/kprobes v2 1/5] tracing/kprobes: Rename specialvariables syntax
From: Masami Hiramatsu
Date: Mon Oct 05 2009 - 17:03:17 EST
Frederic Weisbecker wrote:
- @global-symbol
We could use global-symbol as is. Shadowing between global
and local vars could be dealt with scope resolution:
function:var
file:var
file:line:var
And throw errors while submitting a shadowed var name, crying until
the user defines the scope, only if needed of course (if there are
no shadowing detected, we can submit a naked variable name).
Sure, via perf-probe, global/local symbols will be translated into
@address by debuginfo.
But without debuginfo, we still need @symbol syntax for accessing
global defined symbols.
- +|-Offs(ARG)
You mean for arg numbers?
So we would have +1 for argument 1?
Sorry for confusing you, it is for deref syntax.
arg(1) looks more easy to remember and to understand, no?
I think arg(N) seems a bit different from other parts.
Perhaps, %argumentN is possible ? :-)
Thank you,
--
Masami Hiramatsu
Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division
e-mail: mhiramat@xxxxxxxxxx
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