z/OS MVS Program Management: Advanced Facilities
Previous topic | Next topic | Contents | Contact z/OS | Library | PDF


ATTRIBUTES data type

z/OS MVS Program Management: Advanced Facilities
SA23-1392-00

An ATTRIBUTES data type indicates that the data is an array of attributes. The attributes data header is mapped by the TFMT_TDATTRIBS section of the IEWTFMT macro. The map is described in Table 1.

The attributes are the program attributes that have been set by the binder as options. Specifically, they are: AC, AMODE, PAGE, DC, EDIT, EP, EXEC, FETCHOPT, OL, REUS, RMODE, SCTR, SSI, and TEST. The program attributes have the same names and values as the binder options, as described in Setting options with the regular binder API, except for the following:
  • The EP value is an entry point offset.
  • The EXEC attribute indicates if the program is executable. The values are YES or NO.
  • The PAGE attribute indicates if page alignment is performed for this program. The values are YES or NO.
Figure 1. Attributes Data Recordieab2t05
Table 1. Transportable program attributes data header
Name Description
TFMT_TDATTRIBS DSECT   Maps the attributes data header
TFMT_TDATTRIBS_EYE DS CL8 Data record identifier. Contains string 'IEWTATTR'.
TFMT_TDATTRIBS_LVL DS FL1 Level number: 1
TFMT_TDATTRIBS_RS1 DS CL3 Reserved
TFMT_TDATTRIBS_LEN DS FL4 Attribute data record length including the varying data
TFMT_TDATTRIBS_DLEN DS FL4 Length of the varying attributes data
TFMT_TDATTRIBS_OFF DS FL2 Offset to the attributes varying data. The offset is relative to the beginning of TFMT_TDATTRIBS.
TFMT_TDATTIBS_RS2 DS FL2 Reserved
Note: The attributes data is stored immediately after the attributes data header. The varying attributes data has this format:
     ATTRIBUTES_COUNT(how many in array)                 (4 bytes)
     ATTRIBUTES_ARRAY
       ATTRIBUTE_NAME                                    (8 bytes)
       ATTRIBUTE_LENGTH                                  (2 bytes)
       ATTRIBUTE_VALUE_OFFSET                            (2 bytes)
       The offset is relative to the beginning of this
       attributes array.
       The attribute value has a length of ATTRIBUTE_LENGTH.

    ACTUAL VARYING VALUES (saved contiguously to previous structure)
The linear format of this data is:
   ATTRIBUTES_COUNT (N) +
   ATTRIBUTE_NAME(1) + ATTRIBUTE_LENGTH(1) + OFFSET(1) +
   ATTRIBUTE_NAME(2) + ATTRIBUTE_LENGTH(2) + OFFSET(2) + ...
   ATTRIBUTE_NAME(N) + ATTRIBUTE_LENGTH(N) + OFFSET(N) +
   ACTUAL ATTRIBUTE VALUE(1) + ACTUAL ATTRIBUTE VALUE(2) + ...
   ACTUAL ATTRIBUTE VALUE(N).

Go to the previous page Go to the next page




Copyright IBM Corporation 1990, 2014