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Re: [PATCH tracing/kprobes v2 0/5] tracing/kprobes, perf: perf probe support take 2
- From: fche at redhat dot com (Frank Ch. Eigler)
- To: Masami Hiramatsu <mhiramat at redhat dot com>
- Cc: Frederic Weisbecker <fweisbec at gmail dot com>, Steven Rostedt <rostedt at goodmis dot org>, Ingo Molnar <mingo at elte dot hu>, lkml<linux-kernel at vger dot kernel dot org>, Thomas Gleixner <tglx at linutronix dot de>, Arnaldo Carvalho de Melo <acme at redhat dot com>, Mike Galbraith <efault at gmx dot de>, Paul Mackerras <paulus at samba dot org>, Peter Zijlstra <a dot p dot zijlstra at chello dot nl>, Christoph Hellwig <hch at infradead dot org>, Ananth N Mavinakayanahalli <ananth at in dot ibm dot com>, Jim Keniston <jkenisto at us dot ibm dot com>, systemtap<systemtap at sources dot redhat dot com>, DLE<dle-develop at lists dot sourceforge dot net>
- Date: Mon, 05 Oct 2009 10:54:06 -0400
- Subject: Re: [PATCH tracing/kprobes v2 0/5] tracing/kprobes, perf: perf probe support take 2
- References: <20091002214834.30906.86502.stgit@dhcp-100-2-132.bos.redhat.com>
Masami Hiramatsu <mhiramat@redhat.com> writes:
> [...]
> These patches introduce 'perf probe' command and update kprobe-tracer. [...]
> Usage
> -----
> perf probe [<options>] -P 'PROBEDEF' [-P 'PROBEDEF' ...]
> [...]
> -k, --vmlinux <file> vmlinux/module pathname
> -r, --release <rel> kernel release
> [...]
Can you outline a reason for the -r flag? We use it in systemtap for
cross-compiling purposes, but I didn't think perf was interested in that.
- FChE