term% cat index.txt CORE(5) File Formats Manual CORE(5)
NAME
core - format of memory image file
DESCRIPTION
UNIX writes out a memory image of a terminated process when any of var‐
ious errors occur. See signal(2) for the list of reasons; the most
common are memory violations, illegal instructions, bus errors, and
user-generated quit signals. The memory image is called `core' and is
written in the process's working directory (provided it can be; normal
access controls apply).
The core file consists of the u. area, which currently consists of 6
pages, beginning with a user structure as given in /usr/in‐
clude/sys/user.h. The kernel stack grows from the end of this 6 page
region. The remainder of the core file consists first of the data
pages and then the stack pages of the process image.
In general the debugger adb(1) is sufficient to deal with core images.
SEE ALSO
adb(1), pi(9.1), coreid(1)
CORE(5)