GCORE(1) User Commands GCORE(1)

NAME

gcore - get core images of running processes

SYNOPSIS

gcore [-pgF] [-o filename] [-c content] process-id...

DESCRIPTION

The gcore utility creates a core image of each specified process. By
default, the name of the core image file for the process whose process ID
is process-id is core.process-id.

OPTIONS

The following options are supported:

-c content
Produces core image files with the specified content. The
content description uses the same tokens as in coreadm(8).
The -c option does not apply to cores produced due to the
-p or -g flags.


-F
Force. Grabs the target process even if another process
has control.


-g
Produces core image files in the global core file
repository with the global content as configured by
coreadm(8). The command fails if the user does not have
permissions to the global core file repository.


-o filename
Substitutes filename in place of core as the first part of
the name of the core image files. filename can contain the
same tokens to be expanded as the paths in coreadm(8).


-p
Produces a core image file in the process-specific
location with the process-specific content for each
process as configured by coreadm(8). The command fails if
the user does not have permissions to the per-process core
file repository.

OPERANDS

The following operand is supported:

process-id
process ID

USAGE

Caution should be exercised when using the -F flag. Imposing two
controlling processes on one victim process can lead to chaos. Safety is
assured only if the primary controlling process, typically a debugger,
has stopped the victim process and the primary controlling process is
doing nothing at the moment of application of the proc tool in question.

EXIT STATUS

The following exit values are returned:

0
On success.


non-zero
On failure, such as non-existent process ID.

FILES

core.process-id
core images

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | See below. |
+--------------------+-----------------+


The command syntax is Evolving. The Output Formats are Unstable.

SEE ALSO

kill(1), setrlimit(2), core(5), proc(5), attributes(7), coreadm(8)

NOTES

gcore is unaffected by the setrlimit(2) system call using the RLIMIT_CORE
value.

June 19, 2006 GCORE(1)