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Annotation of 43BSDReno/share/man/man5/core.5, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)core.5      6.2 (Berkeley) 3/9/86
        !             6: .\"
        !             7: .TH CORE 5  "March 9, 1986"
        !             8: .UC 4
        !             9: .SH NAME
        !            10: core \- format of memory image file
        !            11: .SH SYNOPSIS
        !            12: .B #include <sys/param.h>
        !            13: .SH DESCRIPTION
        !            14: The UNIX System writes out a memory image of a terminated
        !            15: process when any of various errors occur.  See
        !            16: .IR sigvec (2)
        !            17: for the list of reasons; the most common are memory violations, illegal
        !            18: instructions, bus errors, and user-generated quit signals.
        !            19: The memory image is called `core' and is written in the process's
        !            20: working directory (provided it can be; normal access controls apply).
        !            21: .PP
        !            22: The maximum size of a
        !            23: .I core
        !            24: file is limited by
        !            25: .IR setrlimit (2).
        !            26: Files which would be larger than the limit are not created.
        !            27: .PP
        !            28: The core file consists of the
        !            29: .I u.
        !            30: area, whose size (in pages) is
        !            31: defined by the UPAGES manifest in the
        !            32: .RI < sys/param.h >
        !            33: file.  The 
        !            34: .I u.
        !            35: area starts with a 
        !            36: .I user
        !            37: structure as given in
        !            38: .RI < sys/user.h >.
        !            39: The remainder of the core file consists first of the data pages and then
        !            40: the stack pages of the process image.
        !            41: The amount of data space image in the core file is given (in pages) by the
        !            42: variable
        !            43: .I u_dsize
        !            44: in the
        !            45: .I u.
        !            46: area.
        !            47: The amount of stack image in the core file is given (in pages) by the
        !            48: variable 
        !            49: .I u_ssize
        !            50: in the 
        !            51: .I u.
        !            52: area.
        !            53: The size of a ``page'' is given by the constant NBPG
        !            54: (also from
        !            55: .RI < sys/param.h >).
        !            56: .PP
        !            57: In general the debugger
        !            58: .IR adb (1)
        !            59: is sufficient to deal with core images.
        !            60: .SH "SEE ALSO"
        !            61: adb(1), dbx(1), sigvec(2), setrlimit(2)

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