linux-kernel - Re: [GIT PULL 0/8] perf/core improvements and fixes

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Message-ID: <20151030091051.GA7424@gmail.com>
Date:	Fri, 30 Oct 2015 10:10:52 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Alexei Starovoitov <ast@...mgrid.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Brendan Gregg <brendan.d.gregg@...il.com>,
	Daniel Borkmann <daniel@...earbox.net>,
	David Ahern <dsahern@...il.com>, He Kuang <hekuang@...wei.com>,
	Jiri Olsa <jolsa@...hat.com>, Kaixu Xia <xiakaixu@...wei.com>,
	Kan Liang <kan.liang@...el.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>, pi3orama@....com,
	Rabin Vincent <rabinv@...s.com>,
	Stephane Eranian <eranian@...gle.com>,
	Wang Nan <wangnan0@...wei.com>,
	Yuanfang Chen <cyfmxc@...il.com>,
	Zefan Li <lizefan@...wei.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL 0/8] perf/core improvements and fixes


* Arnaldo Carvalho de Melo <acme@...nel.org> wrote:

> Hi Ingo,
> 
> 	This one gets us to pass .c files that gets built and
> loaded, next step will be to be able to access function arguments,
> for which there are patches available, but I'm still reviewing them.
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 66a565c203bc31b76969711fbd92da11bee2f129:
> 
>   Merge tag 'perf-ebpf-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-10-29 13:17:56 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
> 
> for you to fetch changes up to 7ed4915ad60788d6b846e2cd034f49ee15698143:
> 
>   perf unwind: Pass symbol source to libunwind (2015-10-29 17:48:38 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Allow passing C language eBPF scriptlets via --event in all tools,
>   so that it gets built using clang and then pass it to the kernel via
>   sys_bpf() (Wang Nan)
> 
> - Wire up the loaded ebpf object file with associated kprobes, so that
>   it can determine if the kprobes will be filtered or not (Wang Nan)
> 
> User visible:
> 
> - Add cmd string table to decode sys_bpf first arg in 'trace' (Arnaldo Carvalho de Melo)
> 
> - Enable printing of branch stack in 'perf script' (Stephane Eranian)
> 
> - Pass the right file with debug info to libunwind (Rabin Vincent)
> 
> Build Fixes:
> 
> - Make sure fixdep is built before libbpf, fixing a race (Jiri Olsa)
> 
> - Fix libiberty feature detection (Rabin Vincent)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (1):
>       perf trace: Add cmd string table to decode sys_bpf first arg
> 
> Jiri Olsa (1):
>       perf tools: Make sure fixdep is built before libbpf
> 
> Rabin Vincent (2):
>       tools build: Fix libiberty feature detection
>       perf unwind: Pass symbol source to libunwind
> 
> Stephane Eranian (1):
>       perf script: Enable printing of branch stack
> 
> Wang Nan (3):
>       perf bpf: Attach eBPF filter to perf event
>       perf record: Add clang options for compiling BPF scripts
>       perf tools: Compile scriptlets to BPF objects when passing '.c' to --event
> 
>  tools/build/feature/Makefile             |  4 +-
>  tools/perf/Documentation/perf-record.txt |  6 +++
>  tools/perf/Documentation/perf-script.txt | 14 +++++-
>  tools/perf/Makefile.perf                 |  2 +-
>  tools/perf/builtin-record.c              |  7 +++
>  tools/perf/builtin-script.c              | 82 +++++++++++++++++++++++++++++++-
>  tools/perf/builtin-trace.c               |  7 +++
>  tools/perf/tests/bpf-script-example.c    | 44 +++++++++++++++++
>  tools/perf/util/bpf-loader.c             | 17 ++++++-
>  tools/perf/util/bpf-loader.h             |  5 +-
>  tools/perf/util/evsel.c                  | 17 +++++++
>  tools/perf/util/evsel.h                  |  1 +
>  tools/perf/util/parse-events.c           | 11 ++++-
>  tools/perf/util/parse-events.h           |  3 +-
>  tools/perf/util/parse-events.l           |  3 ++
>  tools/perf/util/parse-events.y           | 15 +++++-
>  tools/perf/util/unwind-libunwind.c       |  5 +-
>  17 files changed, 227 insertions(+), 16 deletions(-)
>  create mode 100644 tools/perf/tests/bpf-script-example.c

Pulled, thanks a lot Arnaldo!

	Ingo
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