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GCORE(1)		FreeBSD	General	Commands Manual		      GCORE(1)

NAME
     gcore -- get core images of running process

SYNOPSIS
     gcore [-f]	[-c core] [executable] pid

DESCRIPTION
     The gcore utility creates a core image of the specified process, suitable
     for use with gdb(1).  By default, the core	is written to the file
     ``core._pid_''.  The process identifier, pid, must	be given on the	com-
     mand line.

     The following options are available:

     -c	     Write the core file to the	specified file instead of
	     ``core._pid_''.

     -f	     Dumps all available segments, excluding only malformed and
	     undumpable	segments.  Unlike the default invocation, this flag
	     dumps mappings of devices which may invalidate the	state of
	     device transactions or trigger other unexpected behavior.	As a
	     result, this flag should only be used when	the behavior of	the
	     application and any devices it has	mapped is fully	understood and
	     any side effects can be controlled	or tolerated.

FILES
     core.<pid>		the core image

HISTORY
     A gcore utility appeared in 4.2BSD.

BUGS
     Because of	the ptrace(2) usage gcore may not work with processes which
     are actively being	investigated with truss(1) or gdb(1).  Additionally,
     interruptable sleeps may exit with	EINTR.

     The gcore utility is not compatible with the original 4.2BSD version.

FreeBSD	Ports 11.2		 July 13, 2016		    FreeBSD Ports 11.2

NAME | SYNOPSIS | DESCRIPTION | FILES | HISTORY | BUGS

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