From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756340AbcFGUF1 (ORCPT ); Tue, 7 Jun 2016 16:05:27 -0400 Received: from merlin.infradead.org ([205.233.59.134]:56831 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756310AbcFGUFY (ORCPT ); Tue, 7 Jun 2016 16:05:24 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Taeung Song , Alexander Shishkin , Jiri Olsa , Masami Hiramatsu , Namhyung Kim , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 10/24] perf config: Use new perf_config_set__init() to initialize config set Date: Tue, 7 Jun 2016 17:04:48 -0300 Message-Id: <1465329902-11069-11-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1465329902-11069-1-git-send-email-acme@kernel.org> References: <1465329902-11069-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.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 From: Taeung Song Instead of perf_config(), this function initializes config set by reading various files: user config ~/.perfconfig and system config $(sysconfdir)/perfconfig). If there are the same config variable in both user and system config files, user config has higher priority than system config. Signed-off-by: Taeung Song Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1465291577-20973-3-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/config.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 46 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index e086f593a2aa..8749eca3055f 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -646,13 +646,58 @@ out_free: return -1; } +static int perf_config_set__init(struct perf_config_set *set) +{ + int ret = -1; + const char *home = NULL; + + /* Setting $PERF_CONFIG makes perf read _only_ the given config file. */ + if (config_exclusive_filename) + return perf_config_from_file(collect_config, config_exclusive_filename, set); + if (perf_config_system() && !access(perf_etc_perfconfig(), R_OK)) { + if (perf_config_from_file(collect_config, perf_etc_perfconfig(), set) < 0) + goto out; + } + + home = getenv("HOME"); + if (perf_config_global() && home) { + char *user_config = strdup(mkpath("%s/.perfconfig", home)); + struct stat st; + + if (user_config == NULL) { + warning("Not enough memory to process %s/.perfconfig, " + "ignoring it.", home); + goto out; + } + + if (stat(user_config, &st) < 0) + goto out_free; + + if (st.st_uid && (st.st_uid != geteuid())) { + warning("File %s not owned by current user or root, " + "ignoring it.", user_config); + goto out_free; + } + + if (!st.st_size) + goto out_free; + + ret = perf_config_from_file(collect_config, user_config, set); + +out_free: + free(user_config); + } +out: + return ret; +} + struct perf_config_set *perf_config_set__new(void) { struct perf_config_set *set = zalloc(sizeof(*set)); if (set) { INIT_LIST_HEAD(&set->sections); - if (perf_config(collect_config, set) < 0) { + if (perf_config_set__init(set) < 0) { perf_config_set__delete(set); set = NULL; } -- 2.5.5