From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759352AbbJ3JPT (ORCPT ); Fri, 30 Oct 2015 05:15:19 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44488 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758816AbbJ3JPL (ORCPT ); Fri, 30 Oct 2015 05:15:11 -0400 Date: Fri, 30 Oct 2015 02:14:10 -0700 From: tip-bot for Wang Nan Message-ID: Cc: a.p.zijlstra@chello.nl, lizefan@huawei.com, tglx@linutronix.de, ast@plumgrid.com, masami.hiramatsu.pt@hitachi.com, wangnan0@huawei.com, jolsa@kernel.org, mingo@kernel.org, hekuang@huawei.com, paulus@samba.org, namhyung@kernel.org, acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com, xiakaixu@huawei.com, dsahern@gmail.com, daniel@iogearbox.net, brendan.d.gregg@gmail.com Reply-To: hekuang@huawei.com, jolsa@kernel.org, mingo@kernel.org, paulus@samba.org, namhyung@kernel.org, tglx@linutronix.de, a.p.zijlstra@chello.nl, lizefan@huawei.com, masami.hiramatsu.pt@hitachi.com, ast@plumgrid.com, wangnan0@huawei.com, xiakaixu@huawei.com, linux-kernel@vger.kernel.org, hpa@zytor.com, dsahern@gmail.com, daniel@iogearbox.net, brendan.d.gregg@gmail.com, acme@redhat.com In-Reply-To: <1444826502-49291-9-git-send-email-wangnan0@huawei.com> References: <1444826502-49291-9-git-send-email-wangnan0@huawei.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf record: Add clang options for compiling BPF scripts Git-Commit-ID: 71dc2326252ff1bcdddc05db03c0f831d16c9447 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 71dc2326252ff1bcdddc05db03c0f831d16c9447 Gitweb: http://git.kernel.org/tip/71dc2326252ff1bcdddc05db03c0f831d16c9447 Author: Wang Nan AuthorDate: Wed, 14 Oct 2015 12:41:19 +0000 Committer: Arnaldo Carvalho de Melo CommitDate: Thu, 29 Oct 2015 17:16:22 -0300 perf record: Add clang options for compiling BPF scripts Although previous patch allows setting BPF compiler related options in perfconfig, on some ad-hoc situation it still requires passing options through cmdline. This patch introduces 2 options to 'perf record' for this propose: --clang-path and --clang-opt. Signed-off-by: Wang Nan Cc: Alexei Starovoitov Cc: Brendan Gregg Cc: Daniel Borkmann Cc: David Ahern Cc: He Kuang Cc: Jiri Olsa Cc: Kaixu Xia Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Zefan Li Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1444826502-49291-9-git-send-email-wangnan0@huawei.com [ Add the new options to the 'record' man page ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-record.txt | 6 ++++++ tools/perf/builtin-record.c | 7 +++++++ 2 files changed, 13 insertions(+) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 7ff6a9d..e630a7d 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -314,6 +314,12 @@ This option sets the time out limit. The default value is 500 ms. Record context switch events i.e. events of type PERF_RECORD_SWITCH or PERF_RECORD_SWITCH_CPU_WIDE. +--clang-path:: +Path to clang binary to use for compiling BPF scriptlets. + +--clang-opt:: +Options passed to clang when compiling BPF scriptlets. + SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-list[1] diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index de02267..199fc31 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -31,6 +31,7 @@ #include "util/auxtrace.h" #include "util/parse-branch-options.h" #include "util/parse-regs-options.h" +#include "util/llvm-utils.h" #include #include @@ -1112,6 +1113,12 @@ struct option __record_options[] = { "per thread proc mmap processing timeout in ms"), OPT_BOOLEAN(0, "switch-events", &record.opts.record_switch_events, "Record context switch events"), +#ifdef HAVE_LIBBPF_SUPPORT + OPT_STRING(0, "clang-path", &llvm_param.clang_path, "clang path", + "clang binary to use for compiling BPF scriptlets"), + OPT_STRING(0, "clang-opt", &llvm_param.clang_opt, "clang options", + "options passed to clang when compiling BPF scriptlets"), +#endif OPT_END() };