xref: /illumos-gate/usr/src/man/man3proc/Pgcore.3proc (revision dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2)
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12.\" Copyright 2015 Joyent, Inc.
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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. For details on the core file format, see
48.Xr core 4 .
49.Pp
50.Fn Pfgcore
51writes the core to the file represented by the open descriptor
52.Fa fd .
53The file descriptor should be open for both read and write.
54.Fn Pgcore
55writes the core to the file path
56.Fa fname .
57.Pp
58The content of the core is controlled by the
59.Fa content
60argument. It's the inclusive-bitwise-OR of the various content types
61listed under the
62.Sy core_content_t
63heading in the
64.Sy TYPES
65section in
66.Xr libproc 3LIB .
67Using
68.Dv CC_CONTENT_INVALID
69is illegal and will result in an error.
70.Pp
71Neither the
72.Fn Pgcore
73or
74.Fn Pfgcore
75functions stop the handle
76.Fa P .
77It is up to the caller to stop the process; which is recommended for
78obtaining a consistent view of the process. See the
79.Xr Pstop 3PROC
80function for a means to stop a handle.
81.Sh RETURN VALUES
82Upon successful completion, the
83.Fn Pfcore
84and
85.Fn Pgcore
86functions return
87.Sy 0
88and write out a core file to specified location. Otherwise,
89.Sy -1
90is returned. The
91.Fn Pfgcore
92function will truncate
93.Fa fd
94and the
95.Fn Pgcore
96function will remove
97.Fa fname .
98.Sh INTERFACE STABILITY
99.Sy Uncommitted
100.Sh MT-LEVEL
101See
102.Sy LOCKING
103in
104.Xr libproc 3LIB .
105.Sh SEE ALSO
106.Xr coreadm 1M ,
107.Xr libproc 3LIB ,
108.Xr Pstop 3PROC ,
109.Xr core 4 ,
110.Xr proc 4
111