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Object
Module
Formats
Version
4.0
RECORD
ORDER
A
object
code
file
must
contain
a
seauence
of
(one
or
more)
modules,
or
a
library
containing
zero
or
more
modules.
A
module
is
defined
as
a
collection
of
object
code
defined
by
a
sequence
of
object
records.
The
followinq
syntax
shows
the
valid
orderinqs
of
records
to
form
a
module.
In
addition,
the
qiven
semantic
rules
provide
information
about
how
to
interpret
the
record
sequence.
The
syntactic
description
lan~uage
used
herein
is
defined
in
WIRTH:
CACM,
November
1977,
v
20,
nIl,
p
822
-
823.
object~file
=
sequence
I
library.
sequence
=
module
{module}.
library
= LIBHEO
{module}
1ibtail.
module
tmod
lmod
rmod
omod
sqr.
table
sqor.table
seQ.qrp
= tmod I lmod I rmod
omod.
=
THEADR
sqr;_table
{component}
modtail.
=
LHEADR
sQr.table
{data}
It_component}
modtail.
=
RHEADR
sgr_table
{data}
It_component}
modtail.
=
RHEADR
sqor_table
{o,:.component}
o·modtail.
=
seq~grp
[REGINT1.
=
seq
qrp
{OVLDEF}
[REGINT1.
=
{LNAMES}
{SEGDEF}
{
TYPDEF
I
EXTDEF
I
GRPDEF
}.
o.
component
=
{data}
It_component}
ENOREC.
t~component
=
THEADR
{co~ponent}.
component
=
data
I
debuq.
record.
data
=
content
..
def
TYPDEF
thread·def
I
PUBDEF
I Ex'rDEF.
debuq.
record
=
LOCSYM
I
LINNUM
I
DEBSYM
I
BLKDEF
I
BLKENO
I ENOREe.
content
def
=
data
record
{FIXUPP}.
thread
def
=
FIXUPP.
(containinq
only
thread
fields)
data
record
=
LIDATA
I
LEDATA
I PIDATA I
PEDATA
I
REDATA
I HIDATA.
o
modtail
=
{OVLDEF}
modtail.
22