1GCORE(1) GNU Development Tools GCORE(1)
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6 gcore - Generate a core file of a running program
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9 gcore [-a] [-o filename] pid
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12 Generate a core dump of a running program with process ID pid.
13 Produced file is equivalent to a kernel produced core file as if the
14 process crashed (and if "ulimit -c" were used to set up an appropriate
15 core dump limit). Unlike after a crash, after gcore the program
16 remains running without any change.
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19 -a Dump all memory mappings. The actual effect of this option depends
20 on the Operating System. On GNU/Linux, it will disable
21 "use-coredump-filter" and enable "dump-excluded-mappings".
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23 -o filename
24 The optional argument filename specifies the file name where to put
25 the core dump. If not specified, the file name defaults to
26 core.pid, where pid is the running program process ID.
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29 The full documentation for GDB is maintained as a Texinfo manual. If
30 the "info" and "gdb" programs and GDB's Texinfo documentation are
31 properly installed at your site, the command
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33 info gdb
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35 should give you access to the complete manual.
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37 Using GDB: A Guide to the GNU Source-Level Debugger, Richard M.
38 Stallman and Roland H. Pesch, July 1991.
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41 Copyright (c) 1988-2013 Free Software Foundation, Inc.
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43 Permission is granted to copy, distribute and/or modify this document
44 under the terms of the GNU Free Documentation License, Version 1.3 or
45 any later version published by the Free Software Foundation; with the
46 Invariant Sections being "Free Software" and "Free Software Needs Free
47 Documentation", with the Front-Cover Texts being "A GNU Manual," and
48 with the Back-Cover Texts as in (a) below.
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50 (a) The FSF's Back-Cover Text is: "You are free to copy and modify this
51 GNU Manual. Buying copies from GNU Press supports the FSF in
52 developing GNU and promoting software freedom."
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56gdb-Red Hat Enterprise Linux 7.6.1-2101148.-e1l07-30 GCORE(1)