linux-kernel - [RFC PATCH 0/7] perf tools: Config BPF maps through perf cmdline

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Date:	Sat, 17 Oct 2015 10:48:23 +0000
From:	Wang Nan <wangnan0@...wei.com>
To:	<acme@...nel.org>, <ast@...mgrid.com>, <brendan.d.gregg@...il.com>
CC:	<a.p.zijlstra@...llo.nl>, <daniel@...earbox.net>,
	<dsahern@...il.com>, <hekuang@...wei.com>, <jolsa@...nel.org>,
	<lizefan@...wei.com>, <masami.hiramatsu.pt@...achi.com>,
	<namhyung@...nel.org>, <paulus@...ba.org>,
	<linux-kernel@...r.kernel.org>, <pi3orama@....com>,
	<xiakaixu@...wei.com>, Wang Nan <wangnan0@...wei.com>
Subject: [RFC PATCH 0/7] perf tools: Config BPF maps through perf cmdline

This patch set is based on commit d2f820885d8e ("perf tools: Pass
available CPU number to clang compiler") in my git tree [1]. It replaces
the old four patches in the git tree with improved solution.

In these 7 patches:

 1. perf is able to put values into map:
  # perf record -e mybpf.c/maps.values.value=1234/ ...

 2. perf is able to control different slots in a map separately:
  # perf record -e mybpf.c/maps.values.value[1,4-6]=1234,maps.values.value[0,2-3]=5678/ ...

 3. The second syntax can be applied to perf event also:
  # perf record -v -a -e evt=cycles -e mybpf.c/maps.pmu_map.event[0]=evt/ ...

 4. Compatible with the old syntax:
  # perf record -v -a -e evt=cycles -e mybpf.c/maps.pmu_map.event=evt/ ...

[1] git://git.kernel.org/pub/scm/linux/kernel/git/pi3orama/linux.git perf/ebpf

He Kuang (1):
  perf record: Apply config to BPF objects before recording

Wang Nan (6):
  perf tools: Add API to config maps in bpf object
  perf tools: Add API to apply config to BPF map
  perf tools: Enable BPF object configure syntax
  perf tools: Support setting different slots in a BPF map separately
  perf tools: Enable indics setting syntax for BPF maps
  perf tools: Enable passing event to BPF object

 tools/perf/builtin-record.c    |  11 +
 tools/perf/util/bpf-loader.c   | 515 +++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/bpf-loader.h   |  42 ++++
 tools/perf/util/parse-events.c |  60 ++++-
 tools/perf/util/parse-events.h |   5 +-
 tools/perf/util/parse-events.l |  11 +
 tools/perf/util/parse-events.y | 113 ++++++++-
 7 files changed, 748 insertions(+), 9 deletions(-)

-- 
1.8.3.4

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