09-21-2001
hi!
how do i do dat? could u plz write in detail!
Thank
Shaik
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LEARN ABOUT FREEBSD
gcore
GCORE(1) BSD General Commands Manual GCORE(1)
NAME
gcore -- get core images of running process
SYNOPSIS
gcore [-f] [-s] [-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 command 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 map-
pings 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.
-s Stop the process while gathering the core image, and resume it when done. This guarantees that the resulting core dump will be in a
consistent state. The process is resumed even if it was already stopped. The same effect can be achieved manually with kill(1).
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). Addition-
ally, interruptable sleeps may exit with EINTR.
The gcore utility is not compatible with the original 4.2BSD version.
BSD
July 14, 2010 BSD