units: add mount for tracefs

Kernel 4.1 separated the tracing system from the debugfs,
actual documentation already points to a different path
that needs this new mount to exist.

the old sysfs path will still be an automount in the debugfs,
created by the kernel (for now).

Signed-off-by: Norbert Lange <nolange79@gmail.com>

man/sd_bus_message_read_basic.xml

@@ -155,7 +155,7 @@
           <row>
             <entry><literal>o</literal></entry>
             <entry><constant>SD_BUS_TYPE_OBJECT_PATH</constant></entry>
-            <entry>D-Bus object path stringy</entry>
+            <entry>D-Bus object path string</entry>
             <entry><type>const char **</type></entry>
           </row>
 

po/ja.po

@@ -62,52 +62,52 @@ msgstr "systemdの状態を再読込するには認証が必要です。"
 
 #: src/home/org.freedesktop.home1.policy:13
 msgid "Create a home area"
-msgstr "ホームディレクトリの作成"
+msgstr "ホーム領域の作成"
 
 #: src/home/org.freedesktop.home1.policy:14
 msgid "Authentication is required to creat a user's home area."
-msgstr "ユーザのホームディレクトリを作成するには認証が必要です。"
+msgstr "ユーザのホーム領域を作成するには認証が必要です。"
 
 #: src/home/org.freedesktop.home1.policy:23
 msgid "Remove a home area"
-msgstr "ホームディレクトリの削除"
+msgstr "ホーム領域の削除"
 
 #: src/home/org.freedesktop.home1.policy:24
 msgid "Authentication is required to remov a user's home area."
-msgstr "ユーザのホームディレクトリの削除には認証が必要です。"
+msgstr "ユーザのホーム領域の削除には認証が必要です。"
 
 #: src/home/org.freedesktop.home1.policy:33
 msgid "Check credentials of a home area"
-msgstr "ホームディレクトリの認証情報の確認"
+msgstr "ホーム領域の認証情報の確認"
 
 #: src/home/org.freedesktop.home1.policy:34
 msgid ""
 "Authentication is required to check credentials against a user's home area."
-msgstr "ユーザのホームディレクトリに対する認証情報の確認には認証が必要です。"
+msgstr "ユーザのホーム領域に対する認証情報の確認には認証が必要です。"
 
 #: src/home/org.freedesktop.home1.policy:43
 msgid "Update a home area"
-msgstr "ホームディレクトリの更新"
+msgstr "ホーム領域の更新"
 
 #: src/home/org.freedesktop.home1.policy:44
 msgid "Authentication is required to updat a user's home area."
-msgstr "ユーザのホームディレクトリの更新には認証が必要です。"
+msgstr "ユーザのホーム領域の更新には認証が必要です。"
 
 #: src/home/org.freedesktop.home1.policy:53
 msgid "Resize a home area"
-msgstr "ホームディレクトリのサイズ変更"
+msgstr "ホーム領域のサイズ変更"
 
 #: src/home/org.freedesktop.home1.policy:54
 msgid "Authentication is required to resiz a user's home area."
-msgstr "ユーザのホームディレクトリのサイズ変更には認証が必要です。"
+msgstr "ユーザのホーム領域のサイズ変更には認証が必要です。"
 
 #: src/home/org.freedesktop.home1.policy:63
 msgid "Change password of a home area"
-msgstr "ホームディレクトリのパスワード変更"
+msgstr "ホーム領域のパスワード変更"
 
 #: src/home/org.freedesktop.home1.policy:64
 msgid "Authentication is required to chang the password of a user's home area."
-msgstr "ユーザのホームディレクトリのパスワードを変更するには認証が必要です。"
+msgstr "ユーザのホーム領域のパスワードを変更するには認証が必要です。"
 
 #: src/hostname/org.freedesktop.hostname1.policy:20
 msgid "Set host name"

src/userdb/userdbctl.c

@@ -699,7 +699,7 @@ static int parse_argv(int argc, char *argv[]) {
                         if (isempty(optarg))
                                 arg_services = strv_free(arg_services);
                         else {
-                                char **l;
+                                _cleanup_strv_free_ char **l = NULL;
 
                                 l = strv_split(optarg, ":");
                                 if (!l)

units/meson.build

@@ -78,6 +78,8 @@ units = [
          'sysinit.target.wants/'],
         ['sys-kernel-debug.mount',              '',
          'sysinit.target.wants/'],
+        ['sys-kernel-tracing.mount',            '',
+         'sysinit.target.wants/'],
         ['sysinit.target',                      ''],
         ['syslog.socket',                       ''],
         ['system-systemd\\x2dcryptsetup.slice', 'HAVE_LIBCRYPTSETUP'],

units/sys-kernel-tracing.mount

@@ -0,0 +1,23 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=Kernel Trace File System
+Documentation=https://www.kernel.org/doc/Documentation/trace/ftrace.txt
+Documentation=https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
+DefaultDependencies=no
+ConditionPathExists=/sys/kernel/tracing
+ConditionCapability=CAP_SYS_RAWIO
+Before=sysinit.target
+
+[Mount]
+What=tracefs
+Where=/sys/kernel/tracing
+Type=tracefs
+Options=nosuid,nodev,noexec