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Re: [PATCH -tip 0/4] perf-probe updates: string support, etc.
- From: Arnaldo Carvalho de Melo <acme at redhat dot com>
- To: Chase Douglas <chase dot douglas at canonical dot com>
- Cc: Masami Hiramatsu <mhiramat at redhat dot com>, Ingo Molnar <mingo at elte dot hu>, lkml <linux-kernel at vger dot kernel dot org>, Paul Mackerras <paulus at samba dot org>, Peter Zijlstra <peterz at infradead dot org>, Mike Galbraith <efault at gmx dot de>, Frederic Weisbecker <fweisbec at gmail dot com>, systemtap <systemtap at sources dot redhat dot com>, DLE <dle-develop at lists dot sourceforge dot net>
- Date: Mon, 5 Jul 2010 14:44:50 -0300
- Subject: Re: [PATCH -tip 0/4] perf-probe updates: string support, etc.
- References: <20100519195717.2885.90799.stgit@localhost6.localdomain6> <56FC4434-EA6C-4A0C-A95B-3D7BE818774B@canonical.com>
Em Mon, Jul 05, 2010 at 10:30:47AM -0400, Chase Douglas escreveu:
> On May 19, 2010, at 3:57 PM, Masami Hiramatsu wrote:
> > Hi,
> >
> > Here is a series of patches which improves perf probe to
> > add below features. I cleared some coding style issues.
> >
> > - String support, which enables dynamic events to trace string
> > variables instead of its address.
> >
> > - Fixed-index array entry support, which allows user to trace
> > an array entry with digit index, e.g. array[0].
> >
> > - Global/static variable support, which allows user to trace
> > global or static variables, as same as local one.
> >
> >
> > TODOs (possible features):
> > - Support dynamic array-indexing (var[var2])
> > - Support force type-casting ((type)var)
> > - Show what deta-structure member is assigned to each argument.
> > - Better support for probes on modules
> > - More debugger like enhancements(%next, --disasm, etc.)
> >
> > Thank you,
> >
> > ---
> >
> > Masami Hiramatsu (4):
> > perf probe: Support static and global variables
> > perf probe: Support tracing an entry of array
> > perf probe: Support "string" type
> > tracing/kprobes: Support "string" type
>
> What's the status of these patches? They seem very useful to me, but I
> don't see them in Arnaldo's tree at git.kernel.org.
Thanks for reminding me about these ones, will look at them to get them
in perf/core.
- Arnaldo