linux-kernel - [PATCH -tip 0/9] perf-probe updates - use elfutils and introduce lazy matching

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Message-ID: <20100218232701.21679.5195.stgit@dhcp-100-2-132.bos.redhat.com>
Date:	Thu, 18 Feb 2010 18:27:01 -0500
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>, lkml <linux-kernel@...r.kernel.org>
Cc:	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Jim Keniston <jkenisto@...ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Christoph Hellwig <hch@...radead.org>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Jason Baron <jbaron@...hat.com>,
	"K.Prasad" <prasad@...ux.vnet.ibm.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ulrich Drepper <drepper@...hat.com>,
	Roland McGrath <roland@...hat.com>,
	Mike Galbraith <efault@....de>,
	systemtap <systemtap@...rces.redhat.com>,
	DLE <dle-develop@...ts.sourceforge.net>
Subject: [PATCH -tip 0/9] perf-probe updates - use elfutils and introduce lazy
	matching

Hi Ingo,

Here are several bugfixes and updates of perf-probe.
This updates includes moving onto elfutils-libdw and
the lazy line matching support which you had mentioned :-)

elfutils library is developed closely with gcc team,
and it is simple and fast dwarf analysis library.

lazy-matching is similar to glob matching but ignoring
spaces in both of target and pattern.

This is updated todo list. Most of them are related
to the 'type' support.

Long-term TODOs (future features):
  - Enhance probe-finder to decode call frame instructions.
  - Support sys_perf_counter_open (for non-root users)
  - Support tracing static variables (non global)
  - Support variable types from debuginfo (e.g. char, int, ...)
  - Support fields of data structures (var->field)
  - Support array (var[N])
  - Support dynamic array-indexing (var[var2])
  - Support string/dynamic arrays (*var, var[N..M])
  - Support force type-casting ((type)var)
  - Support the type of return value

Miscs:
  - Better support for probes on modules
  - --list option shows the file-name/line-number of each events.
  

Thank you,

---

Masami Hiramatsu (9):
      perf probe: Add lazy line matching support
      perf probe: show more lines after last line
      perf probe: Check function address range strictly in line finder
      perf probe: Use libdw callback routines
      perf probe: Use elfutils-libdw for analyzing debuginfo
      perf probe: Rename probe finder functions
      perf probe: Fix bugs in line range finder
      perf probe: Update perf probe document
      perf probe: Do not show --line option without dwarf support


 tools/perf/Documentation/perf-probe.txt |   58 ++
 tools/perf/Makefile                     |   10 
 tools/perf/builtin-probe.c              |   36 +
 tools/perf/util/probe-event.c           |   55 +-
 tools/perf/util/probe-finder.c          |  994 ++++++++++++++-----------------
 tools/perf/util/probe-finder.h          |   53 +-
 tools/perf/util/string.c                |   55 +-
 tools/perf/util/string.h                |    1 
 8 files changed, 639 insertions(+), 623 deletions(-)

-- 
Masami Hiramatsu
e-mail: mhiramat@...hat.com
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