From nobody Sun Feb 8 17:13:55 2026 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 55FE1C77B75 for ; Mon, 15 May 2023 08:59:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238864AbjEOI65 (ORCPT ); Mon, 15 May 2023 04:58:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41752 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238648AbjEOI6t (ORCPT ); Mon, 15 May 2023 04:58:49 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F04211985; Mon, 15 May 2023 01:58:45 -0700 (PDT) Received: from kwepemm600003.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4QKY8J4x5mzqSNr; Mon, 15 May 2023 16:54:24 +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; Mon, 15 May 2023 16:58:42 +0800 From: Yang Jihong To: , , , , , , , , , , , , CC: Subject: [PATCH v3 1/4] perf trace-event-info: Add tracepoint_id_to_name() helper Date: Mon, 15 May 2023 08:57:04 +0000 Message-ID: <20230515085707.124549-2-yangjihong1@huawei.com> X-Mailer: git-send-email 2.30.GIT In-Reply-To: <20230515085707.124549-1-yangjihong1@huawei.com> References: <20230515085707.124549-1-yangjihong1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.67.174.95] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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" Add tracepoint_id_to_name() helper to search for the trace events directory by given event id and return the corresponding tracepoint. Signed-off-by: Yang Jihong --- tools/perf/util/trace-event-info.c | 11 +++++++++++ tools/perf/util/trace-event.h | 6 ++++++ 2 files changed, 17 insertions(+) diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-eve= nt-info.c index c24b3a15e319..a7901f4a6654 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -466,6 +466,17 @@ static struct tracepoint_path *tracepoint_id_to_path(u= 64 config) return NULL; } =20 +char *tracepoint_id_to_name(u64 config) +{ + struct tracepoint_path *path =3D tracepoint_id_to_path(config); + char *buf =3D NULL; + + if (path && asprintf(&buf, "%s:%s", path->system, path->name) > 0) + return buf; + + return NULL; +} + static struct tracepoint_path *tracepoint_name_to_path(const char *name) { struct tracepoint_path *path =3D zalloc(sizeof(*path)); diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index a0cff184b1cd..a69ee29419f3 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -62,6 +62,12 @@ unsigned long long eval_flag(const char *flag); =20 int read_tracing_data(int fd, struct list_head *pattrs); =20 +/* + * Return the tracepoint name in the format "subsystem:event_name", + * callers should free the returned string. + */ +char *tracepoint_id_to_name(u64 config); + struct tracing_data { /* size is only valid if temp is 'true' */ ssize_t size; --=20 2.30.GIT From nobody Sun Feb 8 17:13:55 2026 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 940D5C77B7D for ; Mon, 15 May 2023 08:59:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238631AbjEOI7C (ORCPT ); Mon, 15 May 2023 04:59:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238650AbjEOI6t (ORCPT ); Mon, 15 May 2023 04:58:49 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3CD3FD; Mon, 15 May 2023 01:58:45 -0700 (PDT) Received: from kwepemm600003.china.huawei.com (unknown [172.30.72.55]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4QKY8K6jg3z18LXq; Mon, 15 May 2023 16:54:25 +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; Mon, 15 May 2023 16:58:42 +0800 From: Yang Jihong To: , , , , , , , , , , , , CC: Subject: [PATCH v3 2/4] perf tools: Extend PRINT_ATTRf to support printing of members with a value of 0 Date: Mon, 15 May 2023 08:57:05 +0000 Message-ID: <20230515085707.124549-3-yangjihong1@huawei.com> X-Mailer: git-send-email 2.30.GIT In-Reply-To: <20230515085707.124549-1-yangjihong1@huawei.com> References: <20230515085707.124549-1-yangjihong1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.67.174.95] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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 attr, members whose value is 0 will not be printed, we want to print the case where attr->type is 0(PERF_TYPE_HARDWARE), add `_a` param to PRINT_ATTRf macro to always print member when it is true No functional change. Signed-off-by: Yang Jihong --- tools/perf/util/perf_event_attr_fprintf.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/perf_event_attr_fprintf.c b/tools/perf/util/pe= rf_event_attr_fprintf.c index 7e5e7b30510d..433029c6afc5 100644 --- a/tools/perf/util/perf_event_attr_fprintf.c +++ b/tools/perf/util/perf_event_attr_fprintf.c @@ -80,15 +80,15 @@ static void __p_read_format(char *buf, size_t size, u64= value) #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) =20 -#define PRINT_ATTRn(_n, _f, _p) \ +#define PRINT_ATTRn(_n, _f, _p, _a) \ do { \ - if (attr->_f) { \ + if (_a || attr->_f) { \ _p(attr->_f); \ ret +=3D attr__fprintf(fp, _n, buf, priv);\ } \ } while (0) =20 -#define PRINT_ATTRf(_f, _p) PRINT_ATTRn(#_f, _f, _p) +#define PRINT_ATTRf(_f, _p) PRINT_ATTRn(#_f, _f, _p, false) =20 int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, attr__fprintf_f attr__fprintf, void *priv) @@ -99,7 +99,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_= attr *attr, PRINT_ATTRf(type, p_unsigned); PRINT_ATTRf(size, p_unsigned); PRINT_ATTRf(config, p_hex); - PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned); + PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned, = false); PRINT_ATTRf(sample_type, p_sample_type); PRINT_ATTRf(read_format, p_read_format); =20 @@ -141,10 +141,10 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_ev= ent_attr *attr, PRINT_ATTRf(remove_on_exec, p_unsigned); PRINT_ATTRf(sigtrap, p_unsigned); =20 - PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsig= ned); + PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsig= ned, false); PRINT_ATTRf(bp_type, p_unsigned); - PRINT_ATTRn("{ bp_addr, config1 }", bp_addr, p_hex); - PRINT_ATTRn("{ bp_len, config2 }", bp_len, p_hex); + PRINT_ATTRn("{ bp_addr, config1 }", bp_addr, p_hex, false); + PRINT_ATTRn("{ bp_len, config2 }", bp_len, p_hex, false); PRINT_ATTRf(branch_sample_type, p_branch_sample_type); PRINT_ATTRf(sample_regs_user, p_hex); PRINT_ATTRf(sample_stack_user, p_unsigned); --=20 2.30.GIT From nobody Sun Feb 8 17:13:55 2026 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 73692C77B75 for ; Mon, 15 May 2023 08:59:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239116AbjEOI7L (ORCPT ); Mon, 15 May 2023 04:59:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238696AbjEOI6v (ORCPT ); Mon, 15 May 2023 04:58:51 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F064D1989; Mon, 15 May 2023 01:58:45 -0700 (PDT) Received: from kwepemm600003.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4QKY7p3ZSfzTkgm; Mon, 15 May 2023 16:53:58 +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; Mon, 15 May 2023 16:58:43 +0800 From: Yang Jihong To: , , , , , , , , , , , , CC: Subject: [PATCH v3 3/4] perf tools: Add printing perf_event_attr type symbol in perf_event_attr__fprintf() Date: Mon, 15 May 2023 08:57:06 +0000 Message-ID: <20230515085707.124549-4-yangjihong1@huawei.com> X-Mailer: git-send-email 2.30.GIT In-Reply-To: <20230515085707.124549-1-yangjihong1@huawei.com> References: <20230515085707.124549-1-yangjihong1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.67.174.95] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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 perf_event_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,mem:0x0 -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 5 ------------------------------------------------------------ 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 6 ------------------------------------------------------------ perf_event_attr: type 2 size 136 config 0x143 { 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 7 ------------------------------------------------------------ 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 9 ------------------------------------------------------------ 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 10 ------------------------------------------------------------ perf_event_attr: type 5 size 136 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ After: # perf --debug verbose=3D2 record -e cycles,cpu-clock,sched:sched_switch,= branch-load-misses,r101,mem:0x0 -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 5 ------------------------------------------------------------ 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 6 ------------------------------------------------------------ perf_event_attr: type 2 (PERF_TYPE_TRACEPOINT) size 136 config 0x143 { 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 7 ------------------------------------------------------------ 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 9 ------------------------------------------------------------ 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 10 ------------------------------------------------------------ perf_event_attr: type 5 (PERF_TYPE_BREAKPOINT) size 136 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ Signed-off-by: Yang Jihong --- tools/perf/util/perf_event_attr_fprintf.c | 32 ++++++++++++++++++++++- 1 file changed, 31 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..05e000e310ce 100644 --- a/tools/perf/util/perf_event_attr_fprintf.c +++ b/tools/perf/util/perf_event_attr_fprintf.c @@ -71,6 +71,35 @@ static void __p_read_format(char *buf, size_t size, u64 = value) __p_bits(buf, size, value, bits); } =20 +static void print_id(char *buf, size_t size, u64 value, const char *str) +{ + if (str =3D=3D NULL) + snprintf(buf, size, "%"PRIu64, value); + else + snprintf(buf, size, "%"PRIu64" (%s)", value, str); +} + +#define ENUM_ID_TO_STR_CASE(x) case x: return (#x); +static const char *stringify_perf_type_id(u64 value) +{ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_TYPE_HARDWARE) + ENUM_ID_TO_STR_CASE(PERF_TYPE_SOFTWARE) + ENUM_ID_TO_STR_CASE(PERF_TYPE_TRACEPOINT) + ENUM_ID_TO_STR_CASE(PERF_TYPE_HW_CACHE) + ENUM_ID_TO_STR_CASE(PERF_TYPE_RAW) + ENUM_ID_TO_STR_CASE(PERF_TYPE_BREAKPOINT) + default: + return NULL; + } +} +#undef ENUM_ID_TO_STR_CASE + +static void __p_type_id(char *buf, size_t size, u64 value) +{ + print_id(buf, size, value, stringify_perf_type_id(value)); +} + #define BUF_SIZE 1024 =20 #define p_hex(val) snprintf(buf, BUF_SIZE, "%#"PRIx64, (uint64_t)(val)) @@ -79,6 +108,7 @@ 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 +126,7 @@ 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 From nobody Sun Feb 8 17:13:55 2026 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 EAC53C77B7D for ; Mon, 15 May 2023 08:59:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239055AbjEOI7G (ORCPT ); Mon, 15 May 2023 04:59:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238693AbjEOI6v (ORCPT ); Mon, 15 May 2023 04:58:51 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 741551994; Mon, 15 May 2023 01:58:46 -0700 (PDT) Received: from kwepemm600003.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4QKYC22rWnzsRcl; Mon, 15 May 2023 16:56:46 +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; Mon, 15 May 2023 16:58:43 +0800 From: Yang Jihong To: , , , , , , , , , , , , CC: Subject: [PATCH v3 4/4] perf tools: Add printing perf_event_attr config symbol in perf_event_attr__fprintf() Date: Mon, 15 May 2023 08:57:07 +0000 Message-ID: <20230515085707.124549-5-yangjihong1@huawei.com> X-Mailer: git-send-email 2.30.GIT In-Reply-To: <20230515085707.124549-1-yangjihong1@huawei.com> References: <20230515085707.124549-1-yangjihong1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.67.174.95] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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 perf_event_attr config and it= s 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,mem:0x0 -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 5 ------------------------------------------------------------ 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 6 ------------------------------------------------------------ perf_event_attr: type 2 size 136 config 0x143 { 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 7 ------------------------------------------------------------ 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 9 ------------------------------------------------------------ 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 10 ------------------------------------------------------------ perf_event_attr: type 5 size 136 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ After: # perf --debug verbose=3D2 record -e cycles,cpu-clock,sched:sched_switch,= branch-load-misses,r101,mem:0x0 -C 0 true ------------------------------------------------------------ perf_event_attr: type 0 (PERF_TYPE_HARDWARE) size 136 config 0 (PERF_COUNT_HW_CPU_CYCLES) { 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 5 ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 0 (PERF_COUNT_SW_CPU_CLOCK) { 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 2 (PERF_TYPE_TRACEPOINT) size 136 config 323 (sched:sched_switch) { 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 7 ------------------------------------------------------------ perf_event_attr: type 3 (PERF_TYPE_HW_CACHE) size 136 config 0x10005 (PERF_COUNT_HW_CACHE_RESULT_MI= SS | PERF_COUNT_HW_CACHE_OP_READ | PERF_COUNT_HW_CACHE_BPU) { 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 9 ------------------------------------------------------------ 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 10 ------------------------------------------------------------ perf_event_attr: type 5 (PERF_TYPE_BREAKPOINT) size 136 config 0 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 11 ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 9 (PERF_COUNT_SW_DUMMY) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID inherit 1 mmap 1 comm 1 freq 1 task 1 sample_id_all 1 mmap2 1 comm_exec 1 ksymbol 1 bpf_event 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 =3D 12 Signed-off-by: Yang Jihong --- tools/perf/util/perf_event_attr_fprintf.c | 137 +++++++++++++++++++++- 1 file changed, 136 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 05e000e310ce..7dac556ec6ca 100644 --- a/tools/perf/util/perf_event_attr_fprintf.c +++ b/tools/perf/util/perf_event_attr_fprintf.c @@ -1,11 +1,13 @@ // SPDX-License-Identifier: GPL-2.0 #include #include +#include #include #include #include #include #include "util/evsel_fprintf.h" +#include "trace-event.h" =20 struct bit_names { int bit; @@ -93,6 +95,80 @@ static const char *stringify_perf_type_id(u64 value) return NULL; } } + +static const char *stringify_perf_hw_id(u64 value) +{ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CPU_CYCLES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_INSTRUCTIONS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_REFERENCES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_MISSES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_INSTRUCTIONS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_MISSES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BUS_CYCLES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_FRONTEND) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_BACKEND) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_REF_CPU_CYCLES) + default: + return NULL; + } +} + +static const char *stringify_perf_hw_cache_id(u64 value) +{ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1D) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1I) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_LL) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_DTLB) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_ITLB) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_BPU) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_NODE) + default: + return NULL; + } +} + +static const char *stringify_perf_hw_cache_op_id(u64 value) +{ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_READ) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_WRITE) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_PREFETCH) + default: + return NULL; + } +} + +static const char *stringify_perf_hw_cache_op_result_id(u64 value) +{ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_ACCESS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_MISS) + default: + return NULL; + } +} + +static const char *stringify_perf_sw_id(u64 value) +{ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_CLOCK) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_TASK_CLOCK) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CONTEXT_SWITCHES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_MIGRATIONS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MIN) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MAJ) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_ALIGNMENT_FAULTS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_EMULATION_FAULTS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_DUMMY) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_BPF_OUTPUT) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CGROUP_SWITCHES) + default: + return NULL; + } +} #undef ENUM_ID_TO_STR_CASE =20 static void __p_type_id(char *buf, size_t size, u64 value) @@ -100,6 +176,64 @@ static void __p_type_id(char *buf, size_t size, u64 va= lue) print_id(buf, size, value, stringify_perf_type_id(value)); } =20 +static void __p_config_hw_id(char *buf, size_t size, u64 value) +{ + print_id(buf, size, value, stringify_perf_hw_id(value)); +} + +static void __p_config_sw_id(char *buf, size_t size, u64 value) +{ + print_id(buf, size, value, stringify_perf_sw_id(value)); +} + +static void __p_config_hw_cache_id(char *buf, size_t size, u64 value) +{ + const char *hw_cache_str =3D stringify_perf_hw_cache_id(value & 0xff); + const char *hw_cache_op_str =3D + stringify_perf_hw_cache_op_id((value & 0xff00) >> 8); + const char *hw_cache_op_result_str =3D + stringify_perf_hw_cache_op_result_id((value & 0xff0000) >> 16); + + if (hw_cache_str =3D=3D NULL || hw_cache_op_str =3D=3D NULL || + hw_cache_op_result_str =3D=3D NULL) { + snprintf(buf, size, "%#"PRIx64, value); + } else { + snprintf(buf, size, "%#"PRIx64" (%s | %s | %s)", value, + hw_cache_op_result_str, hw_cache_op_str, hw_cache_str); + } +} + +#ifdef HAVE_LIBTRACEEVENT +static void __p_config_tracepoint_id(char *buf, size_t size, u64 value) +{ + char *str =3D tracepoint_id_to_name(value); + + print_id(buf, size, value, str); + free(str); +} +#endif + +static void __p_config_id(char *buf, size_t size, u32 type, u64 value) +{ + switch (type) { + case PERF_TYPE_HARDWARE: + return __p_config_hw_id(buf, size, value); + case PERF_TYPE_SOFTWARE: + return __p_config_sw_id(buf, size, value); + case PERF_TYPE_HW_CACHE: + return __p_config_hw_cache_id(buf, size, value); + case PERF_TYPE_TRACEPOINT: +#ifdef HAVE_LIBTRACEEVENT + return __p_config_tracepoint_id(buf, size, value); +#endif + case PERF_TYPE_RAW: + case PERF_TYPE_BREAKPOINT: + default: + snprintf(buf, size, "%#"PRIx64, value); + return; + } +} + #define BUF_SIZE 1024 =20 #define p_hex(val) snprintf(buf, BUF_SIZE, "%#"PRIx64, (uint64_t)(val)) @@ -109,6 +243,7 @@ static void __p_type_id(char *buf, size_t size, u64 val= ue) #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) +#define p_config_id(val) __p_config_id(buf, BUF_SIZE, attr->type, val) =20 #define PRINT_ATTRn(_n, _f, _p, _a) \ do { \ @@ -128,7 +263,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_even= t_attr *attr, =20 PRINT_ATTRn("type", type, p_type_id, true); PRINT_ATTRf(size, p_unsigned); - PRINT_ATTRf(config, p_hex); + PRINT_ATTRn("config", config, p_config_id, true); PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned, = false); PRINT_ATTRf(sample_type, p_sample_type); PRINT_ATTRf(read_format, p_read_format); --=20 2.30.GIT