linux-kernel - [PATCH 0/2] perf: add support of SDT probes arguments

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Message-Id: <20161116235601.13433-1-alexis.berlemont@gmail.com>
Date:   Thu, 17 Nov 2016 00:55:59 +0100
From:   Alexis Berlemont <alexis.berlemont@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Alexis Berlemont <alexis.berlemont@...il.com>,
        peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com
Subject: [PATCH 0/2] perf: add support of SDT probes arguments

Hi,

In the perf todo list (https://perf.wiki.kernel.org/index.php/Todo),
there is an entry related with SDT markers support; SDT tracepoints
were already supported by perf but, so far, the probes arguments are
skipped. Here are 2 small patches which adds support of SDT probes
arguments:

$ perf record -e sdt_libfoo:table_frob -e sdt_libfoo:table_diddle test_sdt
$ perf script
test_sdt  ...   666.255678:   sdt_libfoo:table_frob: (4004d7) arg0=0 arg1=0
test_sdt  ...   666.255683: sdt_libfoo:table_diddle: (40051a) arg0=0 arg1=0
test_sdt  ...   666.255686:   sdt_libfoo:table_frob: (4004d7) arg0=1 arg1=2
test_sdt  ...   666.255689: sdt_libfoo:table_diddle: (40051a) arg0=3 arg1=4
test_sdt  ...   666.255692:   sdt_libfoo:table_frob: (4004d7) arg0=2 arg1=4
test_sdt  ...   666.255694: sdt_libfoo:table_diddle: (40051a) arg0=6 arg1=8

The patches were generated against tip/perf/core.

Alexis.

Alexis Berlemont (2):
  perf sdt: add scanning of sdt probles arguments
  perf probe: add sdt probes arguments into the uprobe cmd string

 tools/perf/util/probe-file.c | 176 ++++++++++++++++++++++++++++++++++++++++++-
 tools/perf/util/symbol-elf.c |  16 +++-
 tools/perf/util/symbol.h     |   1 +
 3 files changed, 188 insertions(+), 5 deletions(-)

-- 
2.10.2