From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 50A44A00C2; Wed, 22 Apr 2020 21:05:17 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 37D3B1D5AB; Wed, 22 Apr 2020 21:04:35 +0200 (CEST) Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by dpdk.org (Postfix) with ESMTP id 399881D44F for ; Wed, 22 Apr 2020 21:04:26 +0200 (CEST) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03MJ1PgJ005814; Wed, 22 Apr 2020 12:04:25 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0818; bh=MR5rY+KVxdgm7gNRKXaHfWSSpB14QqT2rHD/8dtUbC0=; b=jjY6eog2IMhebgenpWViWVNWctxWn7pxoPHNsyXP7nLEwyXhcYx+rE9cEaKhxOS/bEOU u+q+8/bIKUAjn/Wn1fDKYKoR0cF91syKTrEM14JeU0KjXmfqh0D13HGp4dn79L9hKIYn IItG0FhBD0XwdaSxB9fz95WHcC3qOWXl3UwsrClkEifNlSZwkEe0IHoH7hSwUrjsZaYD bN94UygPVJ+KxYBCm/WHOr282g+YxqHpy1dwFOg554cAPecbs8SUC1sepuOxcp5UxBFf riQ+/Z2hIbqjxt9qSu0gLy7BhY03IGmzgem3JKzgCoixRVLpCPunJ0l2AH46Gyj0sbVq tA== Received: from sc-exch03.marvell.com ([199.233.58.183]) by mx0b-0016f401.pphosted.com with ESMTP id 30jd013jew-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 22 Apr 2020 12:04:25 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 22 Apr 2020 12:04:23 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 22 Apr 2020 12:04:23 -0700 Received: from jerin-lab.marvell.com (jerin-lab.marvell.com [10.28.34.14]) by maili.marvell.com (Postfix) with ESMTP id 43D543F703F; Wed, 22 Apr 2020 12:04:21 -0700 (PDT) From: To: Jerin Jacob , Sunil Kumar Kori CC: , , , , Date: Thu, 23 Apr 2020 00:33:25 +0530 Message-ID: <20200422190349.3768487-9-jerinj@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200422190349.3768487-1-jerinj@marvell.com> References: <20200419100133.3232316-1-jerinj@marvell.com> <20200422190349.3768487-1-jerinj@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-22_06:2020-04-22, 2020-04-22 signatures=0 Subject: [dpdk-dev] [PATCH v7 08/32] eal/trace: handle CTF keyword collision X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Sunil Kumar Kori Some of the keyword like align, event, "." and "->" etc will be used in CTF metadata syntax. This patch support for handling those keywords with DPDK events name. Signed-off-by: Sunil Kumar Kori --- lib/librte_eal/common/eal_common_trace_ctf.c | 119 +++++++++++++++++++ 1 file changed, 119 insertions(+) diff --git a/lib/librte_eal/common/eal_common_trace_ctf.c b/lib/librte_eal/common/eal_common_trace_ctf.c index 5ad44cc8d..c4f00bf22 100644 --- a/lib/librte_eal/common/eal_common_trace_ctf.c +++ b/lib/librte_eal/common/eal_common_trace_ctf.c @@ -215,12 +215,131 @@ meta_stream_emit(char **meta, int *offset) return meta_copy(meta, offset, str, rc); } +static void +string_fixed_replace(char *input, const char *search, const char *replace) +{ + char *found; + size_t len; + + found = strstr(input, search); + if (found == NULL) + return; + + if (strlen(found) != strlen(search)) + return; + + len = strlen(replace); + memcpy(found, replace, len); + found[len] = '\0'; +} + +static void +ctf_fixup_align(char *str) +{ + string_fixed_replace(str, "align", "_align"); +} + +static void +ctf_fixup_arrow_deref(char *str) +{ + const char *replace = "_"; + const char *search = "->"; + char *found; + size_t len; + + found = strstr(str, search); + if (found == NULL) + return; + + do { + memcpy(found, replace, strlen(replace)); + len = strlen(found + 2); + memcpy(found + 1, found + 2, len); + found[len + 1] = '\0'; + found = strstr(str, search); + } while (found != NULL); +} + +static void +ctf_fixup_dot_deref(char *str) +{ + const char *replace = "_"; + const char *search = "."; + char *found; + size_t len; + + found = strstr(str, search); + if (found == NULL) + return; + + len = strlen(replace); + do { + memcpy(found, replace, len); + found = strstr(str, search); + } while (found != NULL); +} + +static void +ctf_fixup_event(char *str) +{ + string_fixed_replace(str, "event", "_event"); +} + +static int +ctf_fixup_keyword(char *str) +{ + char dup_str[TRACE_CTF_FIELD_SIZE]; + char input[TRACE_CTF_FIELD_SIZE]; + const char *delim = ";"; + char *from; + int len; + + if (str == NULL) + return 0; + + len = strlen(str); + if (len >= TRACE_CTF_FIELD_SIZE) { + trace_err("ctf_field reached its maximum limit"); + return -EMSGSIZE; + } + + /* Create duplicate string */ + strcpy(dup_str, str); + + len = 0; + from = strtok(dup_str, delim); + while (from != NULL) { + strcpy(input, from); + ctf_fixup_align(input); + ctf_fixup_dot_deref(input); + ctf_fixup_arrow_deref(input); + ctf_fixup_event(input); + + strcpy(&input[strlen(input)], delim); + if ((len + strlen(input)) >= TRACE_CTF_FIELD_SIZE) { + trace_err("ctf_field reached its maximum limit"); + return -EMSGSIZE; + } + + strcpy(str + len, input); + len += strlen(input); + from = strtok(NULL, delim); + } + + return 0; +} + static int meta_event_emit(char **meta, int *offset, struct trace_point *tp) { char *str = NULL; int rc; + /* Fixup ctf field string in case it using reserved ctf keywords */ + rc = ctf_fixup_keyword(tp->ctf_field); + if (rc) + return rc; + rc = metadata_printf(&str, "event {\n" " id = %d;\n" -- 2.25.1