From patchwork Wed Feb 10 17:51:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 381409 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C2DB2C433E6 for ; Wed, 10 Feb 2021 17:53:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87C7164EEB for ; Wed, 10 Feb 2021 17:53:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233439AbhBJRwq (ORCPT ); Wed, 10 Feb 2021 12:52:46 -0500 Received: from mx2.suse.de ([195.135.220.15]:37072 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233277AbhBJRwD (ORCPT ); Wed, 10 Feb 2021 12:52:03 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C24FCAD6A; Wed, 10 Feb 2021 17:51:21 +0000 (UTC) From: Daniel Wagner To: Clark Williams , John Kacur Cc: linux-rt-users@vger.kernel.org, Daniel Wagner Subject: [PATCH rt-tests v5 03/13] rt-utils: Add JSON common header output helper Date: Wed, 10 Feb 2021 18:51:08 +0100 Message-Id: <20210210175118.19709-4-dwagner@suse.de> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210210175118.19709-1-dwagner@suse.de> References: <20210210175118.19709-1-dwagner@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org rt_write_json writes the common system information header of the rt-test currently executed. Signed-off-by: Daniel Wagner Signed-off-by: John Kacur --- src/include/rt-utils.h | 4 ++ src/lib/rt-utils.c | 96 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 100 insertions(+) diff --git a/src/include/rt-utils.h b/src/include/rt-utils.h index 39ddbd9eae29..36af92b170df 100644 --- a/src/include/rt-utils.h +++ b/src/include/rt-utils.h @@ -80,4 +80,8 @@ static inline int64_t calctime(struct timespec t) return time; } +void rt_write_json(const char *filename, int argc, char *argv[], + void (*cb)(FILE *, void *), + void *data); + #endif /* __RT_UTILS.H */ diff --git a/src/lib/rt-utils.c b/src/lib/rt-utils.c index 321a11b1172d..00907c573d6a 100644 --- a/src/lib/rt-utils.c +++ b/src/lib/rt-utils.c @@ -20,6 +20,9 @@ #include #include #include /* For SYS_gettid definitions */ +#include +#include +#include #include "rt-utils.h" #include "rt-sched.h" @@ -482,3 +485,96 @@ void disable_trace_mark(void) { close_tracemark_fd(); } + +static char *get_cmdline(int argc, char *argv[]) +{ + char *cmdline; + int len, i; + + len = 0; + for (i = 0; i < argc; i++) + len += strlen(argv[i]) + 1; + + cmdline = malloc(len); + if (!cmdline) + err_exit(ENOMEM, "Could not copy cmdline"); + + memset(cmdline, 0, len); + for (i = 0; i < argc;) { + cmdline = strcat(cmdline, argv[i]); + i++; + if (i < argc) + cmdline = strcat(cmdline, " "); + } + + return cmdline; +} + +void rt_write_json(const char *filename, int argc, char *argv[], + void (*cb)(FILE *, void *), + void *data) +{ + unsigned char buf[1]; + struct utsname uts; + struct timeval tv; + char tsbuf[64]; + struct tm *tm; + char *cmdline; + FILE *f, *s; + time_t t; + size_t n; + int rt = 0; + + if (!filename || !strcmp("-", filename)) { + f = stdout; + } else { + f = fopen(filename, "w"); + if (!f) + err_exit(errno, "Failed to open '%s'\n", filename); + } + + cmdline = get_cmdline(argc, argv); + if (!cmdline) + err_exit(ENOMEM, "get_cmdline()"); + + + gettimeofday(&tv, NULL); + t = tv.tv_sec; + tm = localtime(&t); + /* RFC 2822-compliant date format */ + strftime(tsbuf, sizeof(tsbuf), "%a, %d %b %Y %T %z", tm); + + s = fopen("/sys/kernel/realtime", "r"); + if (s) { + n = fread(buf, 1, 1, s); + if (n == 1 && buf[0] == '1') + rt = 1; + fclose(s); + } + + if (uname(&uts)) + err_exit(errno, "Could not retrieve system information"); + + fprintf(f, "{\n"); + fprintf(f, " \"file_version\": 1,\n"); + fprintf(f, " \"cmdline:\": \"%s\",\n", cmdline); + fprintf(f, " \"rt_test_version:\": \"%1.2f\",\n", VERSION); + fprintf(f, " \"finished\": \"%s\",\n", tsbuf); + fprintf(f, " \"sysinfo\": {\n"); + fprintf(f, " \"sysname\": \"%s\",\n", uts.sysname); + fprintf(f, " \"nodename\": \"%s\",\n", uts.nodename); + fprintf(f, " \"release\": \"%s\",\n", uts.release); + fprintf(f, " \"version\": \"%s\",\n", uts.version); + fprintf(f, " \"machine\": \"%s\",\n", uts.machine); + fprintf(f, " \"realtime\": %d\n", rt); + fprintf(f, " },\n"); + + (cb)(f, data); + + fprintf(f, "}\n"); + + free(cmdline); + + if (!filename || strcmp("-", filename)) + fclose(f); +}