lkml.org 
[lkml]   [2010]   [Feb]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/3] tracing/kprobes: Make Kconfig dependencies generic
Mike Frysinger wrote:
>>
>> config HAVE_REGS_AND_STACK_ACCESS_API
>> bool
>> + help
>> + This symbol should be selected by an architecure if it supports
>> + the API needed to access registers and stack entries from pt_regs.
>> + For example the kprobes-based event tracer needs this API.
>
> a bit vague ... arent there headers/functions people could look at ?
> perhaps you're talking about the regset functions (which is an API to
> access registers in pt_regs) ? or you're talking about asm/syscall.h
> (which is an API to access registers in pt_regs) ?

We're talking about new API which was introduced by b1cf540f
(regs_get_argument_nth has been dropped on -tip tree anyway)

> i'm not asking to be a pain, i'm asking because i really havent a
> clue. if i wanted to add support for this stuff to the Blackfin arch,
> i wouldnt know where to start. even after reading this help i'd fall
> back to grepping arch/x86/ and trying to divine a starting point from
> there.

yeah, I think the comment might be better to refer that APIs are
in arch/*/include/asm/ptrace.h :)
Thank you,

--
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division

e-mail: mhiramat@redhat.com



\
 
 \ /
  Last update: 2010-02-18 17:07    [from the cache]
©2003-2011 Jasper Spaans