Re: [MI400] MATHSAT and MATRMD broken?

["Diane Hellie" <hellie@xxxxxxxxxx>]

Simon:

The MATRMD header file will be fixed in the release following V5R1.   Do
you need a fix for earlier releases?

Diane Hellie
  MI Architecture Owner
  DGZA/030-2T910 (Apple Ridge Blvd)
  253-7742




                      "Simon Coulter"
                      <shc@flybynight.c        To:       mi400@midrange.com
                      om.au>                   cc:
                      Sent by:                 Subject:  Re: [MI400] MATHSAT 
and MATRMD broken?
                      mi400-admin@midra
                      nge.com


                      02/11/02 06:38 PM
                      Please respond to
                      mi400






Hello Diane,

You wrote:
>Can you please provide additional information on which MATRMD include
>field you needed to change to packed?

The include file is QSYSINC/MIH/MATRMD.  The structure that is missing the
_Packed qualifier is _MATRMD_0x17_Template_T.  The lack of _Packed causes
2 bytes of padding to be inserted after Req_Fnc, and 2 bytes of padding to
be inserted after _MATRMD17_Elements[1].  Here is the relevant section
from the compilers aggregate listing:

 |      16           |     100           |    Alloc_Dealloc_Ct
 |      16           |       2           |      Req_Fnc
 |      18           |       2           |      ***PADDING***
 |      20           |       4           |      Total_TTs
 |      24           |       4           |      Ret_TTs
 |      28           |       6           |      reserved1[6]
 |      34           |      80           |      _MATRMD17_Elements[1]
 |     114           |       2           |      ***PADDING***


I have copied the corrected structure below.  The line I changed has SHC
as the change flag.

typedef _Packed struct _MATRMD_0x17_Template_T {     /*SHC*//*@G1A*/
                    /* Alloc / Dealloc control 0x17               */
  short          Req_Fnc;           /* Requested function         */
                                    /* 0001 - sorted by stg alloc */
                                    /* 0002 - sorted by stg deallc*/
                                    /* 0003 - sorted by net stg   */
  unsigned int   Total_TTs;         /* Total tasks and threads    */
  unsigned int   Ret_TTs;           /* Returned number of T/Ts    */
  char           reserved1[6];      /* Reserved space             */
  _MATRMD17_T    _MATRMD17_Elements[1];
  /* This array is only designated [1], however the structure is  */
  /* repeated for each task/thread up to the returned number of   */
  /* task/thread in the Ret_TTs variable.  To access this data,   */
  /* reference out of array bounds.  The 15th element's data is   */
  /* in: structname._MATRMD17_Elements[14] for example.           */
} _MATRMD_0x17_Template_T;


Regards,
Simon Coulter.

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