From: Knut Omang <knut.omang@oracle.com> To: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org, Shuah Khan <shuah@kernel.org>, Jonathan Corbet <corbet@lwn.net>, Masahiro Yamada <yamada.masahiro@socionext.com>, Michal Marek <michal.lkml@markovi.net>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Shreyans Devendra Doshi <0xinfosect0r@gmail.com>, Alan Maguire <alan.maguire@oracle.com>, Brendan Higgins <brendanhiggins@google.com>, Kevin Hilman <khilman@baylibre.com>, Hidenori Yamaji <hidenori.yamaji@sony.com>, Frank Rowand <frowand.list@gmail.com>, Timothy Bird <Tim.Bird@sony.com>, Luis Chamberlain <mcgrof@kernel.org>, "Theodore Ts'o" <tytso@mit.edu>, Daniel Vetter <daniel@ffwll.ch>, Stephen Boyd <sboyd@kernel.org>, Knut Omang <knut.omang@oracle.com> Subject: [RFC 14/19] ktf: Internal debugging facilities Date: Tue, 13 Aug 2019 08:09:29 +0200 Message-ID: <2e0a915bf97d241eced54efa540c9a11a1996c27.1565676440.git-series.knut.omang@oracle.com> (raw) In-Reply-To: <cover.92d76bb4f6dcedc971d0b72a49e8e459a98bca54.1565676440.git-series.knut.omang@oracle.com> Utilities for convenient and runtime enabled/disabled printk debugging mainly intended for debugging ktf itself and subtle early issues with execution/running of tests. ktf_debug.h: User mode debug function definitions Signed-off-by: Knut Omang <knut.omang@oracle.com> --- tools/testing/selftests/ktf/lib/ktf_debug.cc | 20 +++++++- tools/testing/selftests/ktf/lib/ktf_debug.h | 59 +++++++++++++++++++++- 2 files changed, 79 insertions(+) create mode 100644 tools/testing/selftests/ktf/lib/ktf_debug.cc create mode 100644 tools/testing/selftests/ktf/lib/ktf_debug.h diff --git a/tools/testing/selftests/ktf/lib/ktf_debug.cc b/tools/testing/selftests/ktf/lib/ktf_debug.cc new file mode 100644 index 0000000..18ff443 --- /dev/null +++ b/tools/testing/selftests/ktf/lib/ktf_debug.cc @@ -0,0 +1,20 @@ +/* Copyright (c) 2012 Oracle Corporation. All rights reserved + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include "ktf_debug.h" +#include <stdlib.h> + +unsigned long ktf_debug_mask = 0; + + +void ktf_debug_init() +{ + ktf_debug_mask = 0; + char* dbg_mask_str = getenv("KTF_DEBUG_MASK"); + if (dbg_mask_str) { + ktf_debug_mask = strtol(dbg_mask_str, NULL, 0); + log(KTF_INFO_V, "debug mask set to 0x%lx\n", ktf_debug_mask); + } +} diff --git a/tools/testing/selftests/ktf/lib/ktf_debug.h b/tools/testing/selftests/ktf/lib/ktf_debug.h new file mode 100644 index 0000000..dc761a4 --- /dev/null +++ b/tools/testing/selftests/ktf/lib/ktf_debug.h @@ -0,0 +1,59 @@ +/* Copyright (c) 2012 Oracle Corporation. All rights reserved + * Author: Knut Omang <knut.omang@oracle.com> + * + * SPDX-License-Identifier: GPL-2.0 + * + * ktf_debug.h: User mode debug function definitions + * - intended for test debugging. + * + * Enabled by setting bits in the environment variable KTF_DEBUG_MASK + */ + +#ifndef _KTF_DEBUG_H +#define _KTF_DEBUG_H +#include <time.h> +#include <stdio.h> +#include <sys/types.h> +#include <pthread.h> +#include <unistd.h> +#include <sys/syscall.h> + +extern unsigned long ktf_debug_mask; + + +#define KTF_ERR 0x1 +#define KTF_WARN 0x2 +#define KTF_INFO 0x4 +#define KTF_INFO_V 0x100 +#define KTF_MR 0x2000 +#define KTF_DEBUG 0x10000 +#define KTF_POLL 0x20000 +#define KTF_EVENT 0x40000 +#define KTF_DEBUG_V 0x1000000 +#define KTF_DUMP 0x2000000 + +/* Call this to initialize the debug logic from + * environment KTF_DEBUG_MASK + */ +void ktf_debug_init(); + +#define log(level, format, arg...) \ +do {\ + if (level & ktf_debug_mask) {\ + char _tm[30]; \ + time_t _tv = time(NULL);\ + ctime_r(&_tv,_tm);\ + _tm[24] = '\0';\ + fprintf(stderr, "%s [%ld] %s: " format, \ + _tm, (long unsigned int) pthread_self(), __func__, ## arg); \ + }\ +} while (0) + +#define logs(class, stmt_list) \ + do { \ + if (ktf_debug_mask & class) { \ + stmt_list; \ + } \ + } while (0) + +#endif -- git-series 0.9.1
next prev parent reply index Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-13 6:09 [RFC 00/19] Integration of Kernel Test Framework (KTF) into the kernel tree Knut Omang 2019-08-13 6:09 ` [RFC 01/19] kbuild: Fixes to rules for host-cshlib and host-cxxshlib Knut Omang 2019-08-13 14:01 ` Masahiro Yamada 2019-08-13 16:19 ` Knut Omang 2019-08-14 2:02 ` Masahiro Yamada 2019-08-14 5:50 ` Knut Omang 2019-08-14 5:52 ` Knut Omang 2019-08-14 12:52 ` Knut Omang 2019-08-21 1:47 ` Masahiro Yamada 2019-08-21 4:03 ` Knut Omang 2019-08-13 6:09 ` [RFC 02/19] ktf: Introduce the main part of the kernel side of ktf Knut Omang 2019-09-09 1:23 ` Brendan Higgins 2019-09-10 6:15 ` Knut Omang 2019-08-13 6:09 ` [RFC 03/19] ktf: Introduce a generic netlink protocol for test result communication Knut Omang 2019-09-09 1:28 ` Brendan Higgins 2019-09-10 6:30 ` Knut Omang 2019-08-13 6:09 ` [RFC 04/19] ktf: An implementation of a generic associative array container Knut Omang 2019-08-13 6:09 ` [RFC 05/19] ktf: Implementation of ktf support for overriding function entry and return Knut Omang 2019-08-13 6:09 ` [RFC 06/19] ktf: A simple debugfs interface to test results Knut Omang 2019-08-13 8:21 ` Greg Kroah-Hartman 2019-08-14 17:17 ` Knut Omang 2019-08-15 8:49 ` Greg Kroah-Hartman 2019-08-15 10:35 ` Knut Omang 2019-08-15 10:52 ` Greg Kroah-Hartman 2019-08-13 6:09 ` [RFC 07/19] ktf: Simple coverage support Knut Omang 2019-08-13 6:09 ` [RFC 08/19] ktf: Configurable context support for network info setup Knut Omang 2019-08-13 6:09 ` [RFC 09/19] ktf: resolve: A helper utility to aid in exposing private kernel symbols to KTF tests Knut Omang 2019-08-13 6:09 ` [RFC 10/19] ktf: Add documentation for Kernel Test Framework (KTF) Knut Omang 2019-08-13 6:09 ` [RFC 11/19] ktf: Add a small test suite with a few tests to test KTF itself Knut Omang 2019-08-13 6:09 ` [RFC 12/19] ktf: Main part of user land library for executing tests Knut Omang 2019-08-13 6:09 ` [RFC 13/19] ktf: Integration logic for running ktf tests from googletest Knut Omang 2019-08-13 6:09 ` Knut Omang [this message] 2019-08-13 6:09 ` [RFC 15/19] ktf: Some simple examples Knut Omang 2019-08-13 6:09 ` [RFC 16/19] ktf: Some user applications to run tests Knut Omang 2019-08-13 6:09 ` [RFC 17/19] ktf: Toplevel ktf Makefile/makefile includes and scripts to run from kselftest Knut Omang 2019-08-13 6:09 ` [RFC 18/19] kselftests: Enable building ktf Knut Omang 2019-08-13 6:09 ` [RFC 19/19] Documentation/dev-tools: Add index entry for KTF documentation Knut Omang 2019-08-13 8:10 ` [RFC 00/19] Integration of Kernel Test Framework (KTF) into the kernel tree Brendan Higgins 2019-08-13 8:17 ` Brendan Higgins 2019-08-13 11:29 ` Knut Omang 2019-08-13 17:50 ` Brendan Higgins 2019-08-13 8:23 ` Greg Kroah-Hartman 2019-08-13 9:51 ` Knut Omang 2019-08-13 17:02 ` Brendan Higgins
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