From patchwork Mon Dec 22 07:49:25 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sukadev Bhattiprolu X-Patchwork-Id: 423290 X-Patchwork-Delegate: michael@ellerman.id.au Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3FCDC1400E7 for ; Mon, 22 Dec 2014 18:58:18 +1100 (AEDT) Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by lists.ozlabs.org (Postfix) with ESMTP id 22E9D1A21B1 for ; Mon, 22 Dec 2014 18:58:18 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from e7.ny.us.ibm.com (e7.ny.us.ibm.com [32.97.182.137]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id EBB4A1A0BF2 for ; Mon, 22 Dec 2014 18:50:03 +1100 (AEDT) Received: from /spool/local by e7.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 22 Dec 2014 02:49:59 -0500 Received: from b01cxnp22036.gho.pok.ibm.com (b01cxnp22036.gho.pok.ibm.com [9.57.198.26]) by d01dlp01.pok.ibm.com (Postfix) with ESMTP id 78C3938C8041 for ; Mon, 22 Dec 2014 02:49:59 -0500 (EST) Received: from d01av03.pok.ibm.com (d01av03.pok.ibm.com [9.56.224.217]) by b01cxnp22036.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id sBM7nxjY23462060 for ; Mon, 22 Dec 2014 07:49:59 GMT Received: from d01av03.pok.ibm.com (localhost [127.0.0.1]) by d01av03.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id sBM7nwXb024113 for ; Mon, 22 Dec 2014 02:49:59 -0500 Received: from suka-t410.usor.ibm.com (suka-t410.usor.ibm.com [9.70.94.25]) by d01av03.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id sBM7nt9m023963; Mon, 22 Dec 2014 02:49:57 -0500 From: Sukadev Bhattiprolu To: Arnaldo Carvalho de Melo , Jiri Olsa , Michael Ellerman , Paul Mackerras Subject: [PATCH v6 2/4] tools/perf: extend format_alias() to include event parameters Date: Sun, 21 Dec 2014 23:49:25 -0800 Message-Id: <1419234567-22784-3-git-send-email-sukadev@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1419234567-22784-1-git-send-email-sukadev@linux.vnet.ibm.com> References: <1419234567-22784-1-git-send-email-sukadev@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14122207-0037-0000-0000-0000002EF791 Cc: peterz@infradead.org, linuxppc-dev@lists.ozlabs.org, dev@codyps.com, linux-kernel@vger.kernel.org X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Cody P Schafer This causes `perf list pmu` to show parameters for parameterized events like: pmu/event_name,param1=?,param2=?/ [Kernel PMU event] An example: hv_24x7/HPM_TLBIE__PHYS_CORE,core=?/ [Kernel PMU event] Changelog[v6] [Jir Olsa, Sukadev Bhattiprolu] Drop the '$' sign and go back to just printing whatevever sysfs provides (which is '=?') to identify required parameters. sysfs also now uses parameters like 'core' and 'vcpu' rather than 'starting_index'. Changelog[v5] [Jiri Olsa, Peter Zijlstra] Use '$' to prefix parameterized events. Changelog[v4] [Jiri Olsa] If the parameter for an event in sysfs is 'param=val', have perf-list show the event as 'param=?' rather than 'val=?'. CC: Haren Myneni CC: Cody P Schafer Signed-off-by: Cody P Schafer Signed-off-by: Sukadev Bhattiprolu --- tools/perf/util/pmu.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index cb516dd..d208fef 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -810,10 +810,35 @@ void perf_pmu__set_format(unsigned long *bits, long from, long to) set_bit(b, bits); } +static int sub_non_neg(int a, int b) +{ + if (b > a) + return 0; + return a - b; +} + static char *format_alias(char *buf, int len, struct perf_pmu *pmu, struct perf_pmu_alias *alias) { - snprintf(buf, len, "%s/%s/", pmu->name, alias->name); + struct parse_events_term *term; + int used = snprintf(buf, len, "%s/%s", pmu->name, alias->name); + + list_for_each_entry(term, &alias->terms, list) + if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) + used += snprintf(buf + used, sub_non_neg(len, used), + ",%s=%s", term->config, + term->val.str); + + if (sub_non_neg(len, used) > 0) { + buf[used] = '/'; + used++; + } + if (sub_non_neg(len, used) > 0) { + buf[used] = '\0'; + used++; + } else + buf[len - 1] = '\0'; + return buf; }