From nobody Wed Dec 17 15:10:05 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA9E7C77B75 for ; Wed, 19 Apr 2023 12:31:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233231AbjDSMb2 (ORCPT ); Wed, 19 Apr 2023 08:31:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232685AbjDSMbS (ORCPT ); Wed, 19 Apr 2023 08:31:18 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC84813F9C; Wed, 19 Apr 2023 05:31:15 -0700 (PDT) Received: from kwepemm600003.china.huawei.com (unknown [172.30.72.57]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Q1g691PzRzncxX; Wed, 19 Apr 2023 20:27:29 +0800 (CST) Received: from localhost.localdomain (10.67.174.95) by kwepemm600003.china.huawei.com (7.193.23.202) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Wed, 19 Apr 2023 20:31:12 +0800 From: Yang Jihong To: , , , , , , , , , , , , CC: Subject: [PATCH 3/4] perf tools: Add printing perf_event_attr->type symbol in perf_event_attr__fprintf() Date: Wed, 19 Apr 2023 12:29:11 +0000 Message-ID: <20230419122912.73746-4-yangjihong1@huawei.com> X-Mailer: git-send-email 2.30.GIT In-Reply-To: <20230419122912.73746-1-yangjihong1@huawei.com> References: <20230419122912.73746-1-yangjihong1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.67.174.95] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemm600003.china.huawei.com (7.193.23.202) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" When printing perf_event_attr, always display attr->type and its symbol to improve the readability of debugging information. Before: # perf --debug verbose=3D2 record -e cycles,cpu-clock,sched:sched_switch,= branch-load-misses,r101 -C 0 true ------------------------------------------------------------ perf_event_attr: size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 6 ------------------------------------------------------------ perf_event_attr: type 1 size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 7 ------------------------------------------------------------ perf_event_attr: type 2 size 136 config 0x131 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 8 ------------------------------------------------------------ perf_event_attr: type 3 size 136 config 0x10005 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 10 ------------------------------------------------------------ perf_event_attr: type 4 size 136 config 0x101 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 11 After: # perf --debug verbose=3D2 record -e cycles,cpu-clock,sched:sched_switch,= branch-load-misses,r101 -C 0 true ------------------------------------------------------------ perf_event_attr: type 0 (PERF_TYPE_HARDWARE) size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 6 ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 7 ------------------------------------------------------------ perf_event_attr: type 2 (PERF_TYPE_TRACEPOINT) size 136 config 0x131 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 8 ------------------------------------------------------------ perf_event_attr: type 3 (PERF_TYPE_HW_CACHE) size 136 config 0x10005 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 10 ------------------------------------------------------------ perf_event_attr: type 4 (PERF_TYPE_RAW) size 136 config 0x101 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 11 Signed-off-by: Yang Jihong --- tools/perf/util/perf_event_attr_fprintf.c | 24 ++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/perf_event_attr_fprintf.c b/tools/perf/util/pe= rf_event_attr_fprintf.c index 433029c6afc5..d9d70126d505 100644 --- a/tools/perf/util/perf_event_attr_fprintf.c +++ b/tools/perf/util/perf_event_attr_fprintf.c @@ -71,6 +71,27 @@ static void __p_read_format(char *buf, size_t size, u64 = value) __p_bits(buf, size, value, bits); } =20 +static void __p_type_id(char *buf, size_t size, u64 value) +{ + /* sync with enum perf_type_id in perf_event.h */ + switch (value) { +#define PRINT_ENUM_PERF_TYPE_ID_CASE(x) \ + case x: \ + snprintf(buf, size, "%"PRIu64" (%s)", value, #x); \ + return; + PRINT_ENUM_PERF_TYPE_ID_CASE(PERF_TYPE_HARDWARE) + PRINT_ENUM_PERF_TYPE_ID_CASE(PERF_TYPE_SOFTWARE) + PRINT_ENUM_PERF_TYPE_ID_CASE(PERF_TYPE_TRACEPOINT) + PRINT_ENUM_PERF_TYPE_ID_CASE(PERF_TYPE_HW_CACHE) + PRINT_ENUM_PERF_TYPE_ID_CASE(PERF_TYPE_RAW) + PRINT_ENUM_PERF_TYPE_ID_CASE(PERF_TYPE_BREAKPOINT) +#undef PRINT_ENUM_PERF_TYPE_ID_CASE + default: + snprintf(buf, size, "%"PRIu64, value); + return; + } +} + #define BUF_SIZE 1024 =20 #define p_hex(val) snprintf(buf, BUF_SIZE, "%#"PRIx64, (uint64_t)(val)) @@ -79,6 +100,7 @@ static void __p_read_format(char *buf, size_t size, u64 = value) #define p_sample_type(val) __p_sample_type(buf, BUF_SIZE, val) #define p_branch_sample_type(val) __p_branch_sample_type(buf, BUF_SIZE, va= l) #define p_read_format(val) __p_read_format(buf, BUF_SIZE, val) +#define p_type_id(val) __p_type_id(buf, BUF_SIZE, val) =20 #define PRINT_ATTRn(_n, _f, _p, _a) \ do { \ @@ -96,7 +118,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event= _attr *attr, char buf[BUF_SIZE]; int ret =3D 0; =20 - PRINT_ATTRf(type, p_unsigned); + PRINT_ATTRn("type", type, p_type_id, true); PRINT_ATTRf(size, p_unsigned); PRINT_ATTRf(config, p_hex); PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned, = false); --=20 2.30.GIT