core(4)
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core File Format
format of core image file
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DESCRIPTION
The system writes out a core image of a terminated process when
any of several errors occur. See signal(2) for the list of
reasons; the most common are memory violations, illegal
instructions, and user-generated quit signals. The core image is
called core and is written in the process's working directory (if
possible; normal access controls apply). A process with an
effective user id different from the real user id will not
produce a core image.
The first section of the core image is a copy of the system's
per-user data for the process, including the registers as they
were at the time of the fault. The remainder represents the
actual contents of the user's core area when the core image was
written. The text segment is not dumped.
The format of the information in the first section is described
by the user structure of the system, defined in
/usr/include/sys/user.h.
SEE ALSO
setuid(2), signal(2).
crash(1m) in the System Manager's Reference for the DG/UX System.
dbx(1) in the User's Reference for the DG/UX System.
DG/UX 4.00 Page 1
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