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32 .\" @(#)gcore.1 8.2 (Berkeley) 4/18/94
33 .\" $FreeBSD: src/usr.bin/gcore/gcore.1,v 1.8.2.5 2002/07/15 06:25:27 keramida Exp $
34 .\" $DragonFly: src/usr.bin/gcore/gcore.1,v 1.2 2003/06/17 04:29:27 dillon Exp $
41 .Nd get core images of running process
51 utility creates a core image of the specified process,
54 By default, the core is written to the file
56 The process identifier,
58 must be given on the command line.
59 If no executable image is
63 .Dq Pa /proc/<pid>/file .
65 The following options are available:
66 .Bl -tag -width indent
68 Write the core file to the specified file instead of
71 Stop the process while gathering the core image, and resume it
72 when done. This guarantees that the resulting core dump will
73 be in a consistent state. The process is resumed even if it was
75 The same effect can be achieved manually with
79 .Bl -tag -width /var/log/messages -compact
82 .It Pa /proc/<pid>/file
91 Context switches or paging activity that occur while
93 is running may cause the program to become confused.
96 to temporarily stop the target process.
100 utility is not compatible with the original