Re: [PATCH tracing/kprobes v2 1/5] tracing/kprobes: Rename specialvariables syntax
From: Frederic Weisbecker
Date: Mon Oct 05 2009 - 15:27:39 EST
On Mon, Oct 05, 2009 at 12:59:01PM -0400, Masami Hiramatsu wrote:
> As far as I can see in arch/*/include/asm/ptrace.h, all registers start with
> alphabets :-). So, I'd like to suggest renaming sp-vars to '_sp-vars'.
>
> Then, we will have;
> - $local-vars
There is a risk of bash collision.
> - @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).
> - regs
That can conflict with variable names
> - _sp-vars
That too.
> - +|-Offs(ARG)
You mean for arg numbers?
So we would have +1 for argument 1?
arg(1) looks more easy to remember and to understand, no?
Thanks.
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