Messages in this thread | | | Date | Thu, 18 Feb 2010 11:04:19 -0500 | From | Masami Hiramatsu <> | Subject | Re: [PATCH 2/3] tracing/kprobes: Make Kconfig dependencies generic |
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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
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