xref: /illumos-gate/usr/src/man/man3proc/Pgcore.3proc (revision 8e458de0baeb1fee50643403223bc7e909a48464)
1.\"
2.\" This file and its contents are supplied under the terms of the
3.\" Common Development and Distribution License ("CDDL"), version 1.0.
4.\" You may only use this file in accordance with the terms of version
5.\" 1.0 of the CDDL.
6.\"
7.\" A full copy of the text of the CDDL should have accompanied this
8.\" source.  A copy of the CDDL is also available via the Internet at
9.\" http://www.illumos.org/license/CDDL.
10.\"
11.\"
12.\" Copyright 2015 Joyent, Inc.
13.\"
14.Dd May 11, 2016
15.Dt PGCORE 3PROC
16.Os
17.Sh NAME
18.Nm Pfgcore ,
19.Nm Pgcore
20.Nd produce a core file of a process
21.Sh SYNOPSIS
22.Ft int
23.Fo Pfgcore
24.Fa "struct ps_prochandle *P"
25.Fa "int fd"
26.Fa "core_content_t content"
27.Fc
28.Ft int
29.Fo Pgcore
30.Fa "struct ps_prochandle *P"
31.Fa "const char *fname"
32.Fa "core_content_t content"
33.Fc
34.Sh DESCRIPTION
35The
36.Fn Pgcore
37and
38.Fn Pfgcore
39functions produce core files of the handle referred to by
40.Fa P .
41Core files represent a snapshot of a process and may be manipulated by a
42wide variety of tools and libraries including
43.Xr libproc 3LIB ,
44.Xr mdb 1 ,
45.Xr pargs 1 ,
46.Xr pstack 1 ,
47and more.
48For details on the core file format, see
49.Xr core 4 .
50.Pp
51.Fn Pfgcore
52writes the core to the file represented by the open descriptor
53.Fa fd .
54The file descriptor should be open for both read and write.
55.Fn Pgcore
56writes the core to the file path
57.Fa fname .
58.Pp
59The content of the core is controlled by the
60.Fa content
61argument.
62It's the inclusive-bitwise-OR of the various content types listed under the
63.Sy core_content_t
64heading in the
65.Sy TYPES
66section in
67.Xr libproc 3LIB .
68Using
69.Dv CC_CONTENT_INVALID
70is illegal and will result in an error.
71.Pp
72Neither the
73.Fn Pgcore
74or
75.Fn Pfgcore
76functions stop the handle
77.Fa P .
78It is up to the caller to stop the process; which is recommended for
79obtaining a consistent view of the process.
80See the
81.Xr Pstop 3PROC
82function for a means to stop a handle.
83.Sh RETURN VALUES
84Upon successful completion, the
85.Fn Pfcore
86and
87.Fn Pgcore
88functions return
89.Sy 0
90and write out a core file to specified location.
91Otherwise,
92.Sy -1
93is returned.
94The
95.Fn Pfgcore
96function will truncate
97.Fa fd
98and the
99.Fn Pgcore
100function will remove
101.Fa fname .
102.Sh INTERFACE STABILITY
103.Sy Uncommitted
104.Sh MT-LEVEL
105See
106.Sy LOCKING
107in
108.Xr libproc 3LIB .
109.Sh SEE ALSO
110.Xr coreadm 1M ,
111.Xr libproc 3LIB ,
112.Xr Pstop 3PROC ,
113.Xr core 4 ,
114.Xr proc 4
115