From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753932AbbIOP3n (ORCPT ); Tue, 15 Sep 2015 11:29:43 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:59424 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753841AbbIOP3i (ORCPT ); Tue, 15 Sep 2015 11:29:38 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Alexei Starovoitov , Brendan Gregg , Daniel Borkmann , David Ahern , He Kuang , Jiri Olsa , Kaixu Xia , Masami Hiramatsu , Matt Fleming , Namhyung Kim , Paul Mackerras , Peter Zijlstra , pi3orama@163.com, Raphael Beamonte , Wang Nan , Zefan Li , Arnaldo Carvalho de Melo Subject: [GIT PULL 0/8] perf/core improvements and fixes Date: Tue, 15 Sep 2015 12:28:29 -0300 Message-Id: <1442330917-21464-1-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Ingo, Please consider pulling, - Arnaldo The following changes since commit 9059b284caecb628fac826c2c5cc8ee85708eec1: Merge tag 'perf-core-for-mingo-2' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-09-15 08:50:59 +0200) 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 bbbe6bf6037d77816c4a19aaf35f4cecf662b49a: perf tools: Introduce regs_query_register_offset() for x86 (2015-09-15 09:48:33 -0300) ---------------------------------------------------------------- perf/core improvements and fixes: User visible: - Enhance the error reporting of tracepoint event parsing, e.g.: $ oldperf record -e sched:sched_switc usleep 1 event syntax error: 'sched:sched_switc' \___ unknown tracepoint Run 'perf list' for a list of valid events Now we get the much nicer: $ perf record -e sched:sched_switc ls event syntax error: 'sched:sched_switc' \___ can't access trace events Error: No permissions to read /sys/kernel/debug/tracing/events/sched/sched_switc Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug' And after we have those mount point permissions fixed: $ perf record -e sched:sched_switc ls event syntax error: 'sched:sched_switc' \___ unknown tracepoint Error: File /sys/kernel/debug/tracing/events/sched/sched_switc not found. Hint: Perhaps this kernel misses some CONFIG_ setting to enable this feature?. Now its just a matter of using what git uses to suggest alternatives when we make a typo, i.e. that it is just an 'h' missing :-) I.e. basically now the event parsing routing uses the strerror_open() routines introduced by and used in 'perf trace' work. (Jiri Olsa) Infrastructure: - Export init/exit_probe_symbol_maps() from 'perf probe' for use in eBPF (Namhyung Kim) - Free perf_probe_event in cleanup_perf_probe_events() (Namhyung Kim) - regs_query_register_offset() infrastructure + implementation for x86. First user will be the perf/eBPF code (Wang Nan) Signed-off-by: Arnaldo Carvalho de Melo ---------------------------------------------------------------- Jiri Olsa (4): tools: Add err.h with ERR_PTR PTR_ERR interface perf tools: Propagate error info for the tracepoint parsing perf evsel: Propagate error info from tp_format perf tools: Enhance parsing events tracepoint error output Namhyung Kim (2): perf probe: Free perf_probe_event in cleanup_perf_probe_events() perf probe: Export init/exit_probe_symbol_maps() Wang Nan (2): perf tools: regs_query_register_offset() infrastructure perf tools: Introduce regs_query_register_offset() for x86 tools/include/linux/err.h | 49 +++++++++++ tools/perf/arch/x86/Makefile | 1 + tools/perf/arch/x86/util/dwarf-regs.c | 122 ++++++++++++++++++++-------- tools/perf/builtin-probe.c | 5 ++ tools/perf/builtin-trace.c | 19 +++-- tools/perf/config/Makefile | 4 + tools/perf/tests/evsel-tp-sched.c | 10 ++- tools/perf/tests/mmap-basic.c | 3 +- tools/perf/tests/openat-syscall-all-cpus.c | 3 +- tools/perf/tests/openat-syscall-tp-fields.c | 3 +- tools/perf/tests/openat-syscall.c | 3 +- tools/perf/util/evlist.c | 3 +- tools/perf/util/evsel.c | 16 +++- tools/perf/util/evsel.h | 3 + tools/perf/util/include/dwarf-regs.h | 8 ++ tools/perf/util/parse-events.c | 66 +++++++++++---- tools/perf/util/parse-events.h | 3 +- tools/perf/util/parse-events.y | 16 ++-- tools/perf/util/probe-event.c | 32 ++++---- tools/perf/util/probe-event.h | 2 + tools/perf/util/trace-event.c | 15 +++- 21 files changed, 291 insertions(+), 95 deletions(-) create mode 100644 tools/include/linux/err.h