]>
Commit | Line | Data |
---|---|---|
5de0409e ZJS |
1 | <?xml version='1.0'?> <!--*-nxml-*--> |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
12b42c76 | 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
5de0409e ZJS |
4 | |
5 | <!-- | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2012 Zbigniew Jędrzejewski-Szmek | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | --> | |
23 | ||
f4bab169 | 24 | <refentry id="coredumpctl" conditional='ENABLE_COREDUMP' |
798d3a52 ZJS |
25 | xmlns:xi="http://www.w3.org/2001/XInclude"> |
26 | ||
27 | <refentryinfo> | |
28 | <title>coredumpctl</title> | |
29 | <productname>systemd</productname> | |
30 | ||
31 | <authorgroup> | |
32 | <author> | |
33 | <contrib>Developer</contrib> | |
34 | <firstname>Zbigniew</firstname> | |
35 | <surname>Jędrzejewski-Szmek</surname> | |
36 | <email>zbyszek@in.waw.pl</email> | |
37 | </author> | |
38 | </authorgroup> | |
39 | </refentryinfo> | |
40 | ||
41 | <refmeta> | |
42 | <refentrytitle>coredumpctl</refentrytitle> | |
43 | <manvolnum>1</manvolnum> | |
44 | </refmeta> | |
45 | ||
46 | <refnamediv> | |
47 | <refname>coredumpctl</refname> | |
48 | <refpurpose>Retrieve coredumps from the journal</refpurpose> | |
49 | </refnamediv> | |
50 | ||
51 | <refsynopsisdiv> | |
52 | <cmdsynopsis> | |
53 | <command>coredumpctl</command> | |
54 | <arg choice="opt" rep="repeat">OPTIONS</arg> | |
55 | <arg choice="req">COMMAND</arg> | |
56 | <arg choice="opt" rep="repeat">PID|COMM|EXE|MATCH</arg> | |
57 | </cmdsynopsis> | |
58 | </refsynopsisdiv> | |
59 | ||
60 | <refsect1> | |
61 | <title>Description</title> | |
62 | ||
63 | <para><command>coredumpctl</command> may be used to | |
64 | retrieve coredumps from | |
65 | <citerefentry><refentrytitle>systemd-journald</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para> | |
66 | </refsect1> | |
67 | ||
68 | <refsect1> | |
69 | <title>Options</title> | |
70 | ||
71 | <para>The following options are understood:</para> | |
72 | ||
73 | <variablelist> | |
74 | <varlistentry> | |
75 | <term><option>--no-legend</option></term> | |
76 | ||
77 | <listitem><para>Do not print column headers. | |
78 | </para></listitem> | |
79 | </varlistentry> | |
80 | ||
81 | <varlistentry> | |
82 | <term><option>-1</option></term> | |
83 | ||
84 | <listitem><para>Show information of a single coredump only, | |
85 | instead of listing all known coredumps. </para></listitem> | |
86 | </varlistentry> | |
87 | ||
88 | <varlistentry> | |
f6a4dae6 LP |
89 | <term><option>-F</option> <replaceable>FIELD</replaceable></term> |
90 | <term><option>--field=</option><replaceable>FIELD</replaceable></term> | |
798d3a52 ZJS |
91 | |
92 | <listitem><para>Print all possible data values the specified | |
93 | field takes in matching coredump entries of the | |
94 | journal.</para></listitem> | |
95 | </varlistentry> | |
96 | ||
97 | <varlistentry> | |
f6a4dae6 LP |
98 | <term><option>-o</option> <replaceable>FILE</replaceable></term> |
99 | <term><option>--output=</option><replaceable>FILE</replaceable></term> | |
798d3a52 ZJS |
100 | |
101 | <listitem><para>Write the core to <option>FILE</option>. | |
102 | </para></listitem> | |
103 | </varlistentry> | |
104 | ||
b73e9a02 SW |
105 | <varlistentry> |
106 | <term><option>-D</option> <replaceable>DIR</replaceable></term> | |
107 | <term><option>--directory=</option><replaceable>DIR</replaceable></term> | |
108 | ||
109 | <listitem><para>Use the journal files in the specified <option>DIR</option>. | |
110 | </para></listitem> | |
111 | </varlistentry> | |
112 | ||
798d3a52 ZJS |
113 | <xi:include href="standard-options.xml" xpointer="help" /> |
114 | <xi:include href="standard-options.xml" xpointer="version" /> | |
115 | <xi:include href="standard-options.xml" xpointer="no-pager" /> | |
116 | ||
117 | </variablelist> | |
118 | ||
119 | <para>The following commands are understood:</para> | |
120 | ||
121 | <variablelist> | |
122 | <varlistentry> | |
123 | <term><command>list</command></term> | |
124 | ||
125 | <listitem><para>List coredumps captured in the journal | |
126 | matching specified characteristics. If no command is | |
127 | specified, this is the implied default.</para></listitem> | |
128 | </varlistentry> | |
129 | ||
130 | <varlistentry> | |
131 | <term><command>info</command></term> | |
132 | ||
133 | <listitem><para>Show detailed information about coredumps | |
134 | captured in the journal.</para></listitem> | |
135 | </varlistentry> | |
136 | ||
137 | <varlistentry> | |
138 | <term><command>dump</command></term> | |
139 | ||
140 | <listitem><para>Extract the last coredump matching specified | |
141 | characteristics. The coredump will be written on standard | |
142 | output, unless an output file is specified with | |
f6a4dae6 | 143 | <option>--output=</option>. </para></listitem> |
798d3a52 ZJS |
144 | </varlistentry> |
145 | ||
146 | <varlistentry> | |
147 | <term><command>gdb</command></term> | |
148 | ||
149 | <listitem><para>Invoke the GNU debugger on the last coredump | |
150 | matching specified characteristics. </para></listitem> | |
151 | </varlistentry> | |
152 | ||
153 | </variablelist> | |
154 | ||
155 | </refsect1> | |
156 | ||
157 | <refsect1> | |
158 | <title>Matching</title> | |
159 | ||
160 | <para>A match can be:</para> | |
161 | ||
162 | <variablelist> | |
163 | <varlistentry> | |
164 | <term><replaceable>PID</replaceable></term> | |
165 | ||
166 | <listitem><para>Process ID of the | |
167 | process that dumped | |
168 | core. An integer.</para></listitem> | |
169 | </varlistentry> | |
170 | ||
171 | <varlistentry> | |
172 | <term><replaceable>COMM</replaceable></term> | |
173 | ||
174 | <listitem><para>Name of the executable (matches | |
175 | <option>COREDUMP_COMM=</option>). Must not contain slashes. | |
176 | </para></listitem> | |
177 | </varlistentry> | |
178 | ||
179 | <varlistentry> | |
180 | <term><replaceable>EXE</replaceable></term> | |
181 | ||
182 | <listitem><para>Path to the executable (matches | |
183 | <option>COREDUMP_EXE=</option>). Must contain at least one | |
184 | slash. </para></listitem> | |
185 | </varlistentry> | |
186 | ||
187 | <varlistentry> | |
188 | <term><replaceable>MATCH</replaceable></term> | |
189 | ||
190 | <listitem><para>General journalctl predicates (see | |
191 | <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>). | |
192 | Must contain an equal sign. </para></listitem> | |
193 | </varlistentry> | |
194 | </variablelist> | |
195 | </refsect1> | |
196 | ||
197 | <refsect1> | |
198 | <title>Exit status</title> | |
199 | <para>On success, 0 is returned; otherwise, a non-zero failure | |
200 | code is returned. Not finding any matching coredumps is treated as | |
201 | failure. | |
202 | </para> | |
203 | </refsect1> | |
204 | ||
205 | <refsect1> | |
206 | <title>Examples</title> | |
207 | ||
208 | <example> | |
209 | <title>List all the coredumps of a program named foo</title> | |
210 | ||
211 | <programlisting># coredumpctl list foo</programlisting> | |
212 | </example> | |
213 | ||
214 | <example> | |
215 | <title>Invoke gdb on the last coredump</title> | |
216 | ||
217 | <programlisting># coredumpctl gdb</programlisting> | |
218 | </example> | |
219 | ||
220 | <example> | |
221 | <title>Show information about a process that dumped core, | |
222 | matching by its PID 6654</title> | |
223 | ||
224 | <programlisting># coredumpctl info 6654</programlisting> | |
225 | </example> | |
226 | ||
227 | <example> | |
228 | <title>Extract the last coredump of /usr/bin/bar to a file named | |
229 | <filename noindex="true">bar.coredump</filename></title> | |
230 | ||
231 | <programlisting># coredumpctl -o bar.coredump dump /usr/bin/bar</programlisting> | |
232 | </example> | |
233 | </refsect1> | |
234 | ||
235 | <refsect1> | |
236 | <title>See Also</title> | |
237 | <para> | |
238 | <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
239 | <citerefentry><refentrytitle>coredump.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
240 | <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
241 | <citerefentry project='man-pages'><refentrytitle>gdb</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
242 | </para> | |
243 | </refsect1> | |
5de0409e ZJS |
244 | |
245 | </refentry> |