1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
Copyright 2012 Zbigniew Jędrzejewski-Szmek
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.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="coredumpctl" conditional='ENABLE_COREDUMP'
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>coredumpctl</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Zbigniew</firstname>
<surname>Jędrzejewski-Szmek</surname>
<email>zbyszek@in.waw.pl</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>coredumpctl</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>coredumpctl</refname>
<refpurpose>Retrieve coredumps from the journal</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>coredumpctl</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
<arg choice="req">COMMAND</arg>
<arg choice="opt" rep="repeat">PID|COMM|EXE|MATCH</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>coredumpctl</command> may be used to
retrieve coredumps from
<citerefentry><refentrytitle>systemd-journald</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<varlistentry>
<term><option>--no-legend</option></term>
<listitem><para>Do not print the column headers.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-1</option></term>
<listitem><para>Show information of a
single coredump only, instead of
listing all known coredumps.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-F</option></term>
<term><option>--field=</option></term>
<listitem><para>Print all possible
data values the specified field
takes in matching coredump entries of the
journal.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-o</option></term>
<term><option>--output=FILE</option></term>
<listitem><para>Write the core to
<option>FILE</option>.</para></listitem>
</varlistentry>
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
<xi:include href="standard-options.xml" xpointer="no-pager" />
</variablelist>
<para>The following commands are understood:</para>
<variablelist>
<varlistentry>
<term><command>list</command></term>
<listitem><para>List coredumps
captured in the journal matching
specified characteristics. If no
command is specified, this is the
implied default.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>info</command></term>
<listitem><para>Show detailed
information about coredumps captured
in the journal.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>dump</command></term>
<listitem><para>Extract the last coredump
matching specified characteristics.
The coredump will be written on standard output,
unless an output file is specified with
<option>-o/--output</option>.
</para></listitem>
</varlistentry>
<varlistentry>
<term><command>gdb</command></term>
<listitem><para>Invoke the GNU
debugger on the last coredump matching
specified characteristics.
</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Matching</title>
<para>A match can be:</para>
<variablelist>
<varlistentry>
<term><replaceable>PID</replaceable></term>
<listitem><para>Process ID of the
process that dumped
core. An integer.</para></listitem>
</varlistentry>
<varlistentry>
<term><replaceable>COMM</replaceable></term>
<listitem><para>Name of the executable
(matches <option>COREDUMP_COMM=</option>).
Must not contain slashes.
</para></listitem>
</varlistentry>
<varlistentry>
<term><replaceable>EXE</replaceable></term>
<listitem><para>Path to the executable
(matches <option>COREDUMP_EXE=</option>).
Must contain at least one slash.
</para></listitem>
</varlistentry>
<varlistentry>
<term><replaceable>MATCH</replaceable></term>
<listitem><para>General journalctl predicates
(see <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>).
Must contain an equal sign.
</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success, 0 is returned; otherwise, a non-zero failure
code is returned. Not finding any matching coredumps is treated
as failure.
</para>
</refsect1>
<refsect1>
<title>Examples</title>
<example>
<title>List all the coredumps of a program named foo</title>
<programlisting># coredumpctl list foo</programlisting>
</example>
<example>
<title>Invoke gdb on the last coredump</title>
<programlisting># coredumpctl gdb</programlisting>
</example>
<example>
<title>Show information about a process that dumped core, matching by its PID 6654</title>
<programlisting># coredumpctl info 6654</programlisting>
</example>
<example>
<title>Extract the last coredump of /usr/bin/bar to a file named bar.coredump</title>
<programlisting># coredumpctl -o bar.coredump dump /usr/bin/bar</programlisting>
</example>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>coredump.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>gdb</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
|
