Masami Hiramatsu wrote:
On Tue, 18 Jun 2019 20:17:06 +0530
"Naveen N. Rao" wrote:
With KPROBES_ON_FTRACE, kprobe is allowed to be inserted on instructions
that branch to _mcount (referred to as ftrace location). With
-mprofile-kernel, we now include the preceding 'mflr r0' as being part
of the
On Fri, 2019-06-21 at 23:50 +0900, Masami Hiramatsu wrote:
> On Tue, 18 Jun 2019 20:17:06 +0530
> "Naveen N. Rao" wrote:
trivia:
> > diff --git a/arch/powerpc/kernel/kprobes-ftrace.c
> > b/arch/powerpc/kernel/kprobes-ftrace.c
[]
> > @@ -57,6 +82,11 @@ NOKPROBE_SYMBOL(kprobe_ftrace_handler);
> >
On Tue, 18 Jun 2019 20:17:06 +0530
"Naveen N. Rao" wrote:
> With KPROBES_ON_FTRACE, kprobe is allowed to be inserted on instructions
> that branch to _mcount (referred to as ftrace location). With
> -mprofile-kernel, we now include the preceding 'mflr r0' as being part
> of the ftrace location.
>
With KPROBES_ON_FTRACE, kprobe is allowed to be inserted on instructions
that branch to _mcount (referred to as ftrace location). With
-mprofile-kernel, we now include the preceding 'mflr r0' as being part
of the ftrace location.
However, by default, probing on an instruction that is not actually
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