From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752169AbeCZINR (ORCPT ); Mon, 26 Mar 2018 04:13:17 -0400 Received: from mga03.intel.com ([134.134.136.65]:56660 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752096AbeCZIMw (ORCPT ); Mon, 26 Mar 2018 04:12:52 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,364,1517904000"; d="scan'208";a="214862090" From: Jin Yao To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com, Jin Yao Subject: [PATCH v1 3/3] perf: Support perf -vv Date: Tue, 27 Mar 2018 00:07:04 +0800 Message-Id: <1522080424-12912-4-git-send-email-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1522080424-12912-1-git-send-email-yao.jin@linux.intel.com> References: <1522080424-12912-1-git-send-email-yao.jin@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We keep having bug reports that when users build perf on their own, but they don't install some needed libraries such as libelf, libbfd/libibery. The perf can build, but it is missing important functionality. This patch provides a new option '-vv' which will print the compiled-in status of libraries. For example: $ ./perf -vv perf version 4.13.rc5.g9b7a81b dwarf: [ on ] dwarf_getlocations: [ on ] glibc: [ on ] gtk2: [ on ] libaudit: [ off ] libbfd: [ on ] libelf: [ on ] libnuma: [ on ] numa_num_possible_cpus: [ on ] libperl: [ on ] libpython: [ on ] libslang: [ on ] libcrypto: [ on ] libunwind: [ on ] libdw-dwarf-unwind: [ on ] zlib: [ on ] lzma: [ on ] get_cpuid: [ on ] bpf: [ on ] Signed-off-by: Jin Yao --- tools/perf/perf.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 1b3fc8e..300c83d 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -64,6 +64,7 @@ static struct cmd_struct commands[] = { { "top", cmd_top, 0 }, { "annotate", cmd_annotate, 0 }, { "version", cmd_version, 0 }, + { "version2", cmd_version2, 0 }, { "script", cmd_script, 0 }, { "sched", cmd_sched, 0 }, #ifdef HAVE_LIBELF_SUPPORT @@ -190,6 +191,11 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) break; } + if (!strcmp(cmd, "-vv")) { + (*argv)[0] = "--version2"; + break; + } + /* * Check remaining flags. */ -- 2.7.4