104 lines
5.3 KiB
Ada
104 lines
5.3 KiB
Ada
------------------------------------------------------------------------------
|
|
-- --
|
|
-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
|
|
-- --
|
|
-- S Y S T E M . V X W O R K S --
|
|
-- --
|
|
-- S p e c --
|
|
-- --
|
|
-- $Revision: 1.1 $ --
|
|
-- --
|
|
-- Copyright (C) 1998 - 2001 Free Software Foundation --
|
|
-- --
|
|
-- GNARL is free software; you can redistribute it and/or modify it under --
|
|
-- terms of the GNU General Public License as published by the Free Soft- --
|
|
-- ware Foundation; either version 2, or (at your option) any later ver- --
|
|
-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
|
|
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
|
|
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
|
|
-- for more details. You should have received a copy of the GNU General --
|
|
-- Public License distributed with GNARL; see file COPYING. If not, write --
|
|
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
|
|
-- MA 02111-1307, USA. --
|
|
-- --
|
|
-- As a special exception, if other files instantiate generics from this --
|
|
-- unit, or you link this unit with other files to produce an executable, --
|
|
-- this unit does not by itself cause the resulting executable to be --
|
|
-- covered by the GNU General Public License. This exception does not --
|
|
-- however invalidate any other reasons why the executable file might be --
|
|
-- covered by the GNU Public License. --
|
|
-- --
|
|
-- GNARL was developed by the GNARL team at Florida State University. It is --
|
|
-- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
|
|
-- State University (http://www.gnat.com). --
|
|
-- --
|
|
------------------------------------------------------------------------------
|
|
|
|
-- This is the PPC VxWorks 5.x version of this package. A different version
|
|
-- is used for VxWorks 6.0
|
|
|
|
with Interfaces.C;
|
|
|
|
package System.VxWorks is
|
|
pragma Preelaborate (System.VxWorks);
|
|
|
|
package IC renames Interfaces.C;
|
|
|
|
-- Define enough of a Wind Task Control Block in order to
|
|
-- obtain the inherited priority. When porting this to
|
|
-- different versions of VxWorks (this is based on 5.3[.1]),
|
|
-- be sure to look at the definition for WIND_TCB located
|
|
-- in $WIND_BASE/target/h/taskLib.h
|
|
|
|
type Wind_Fill_1 is array (0 .. 16#3F#) of IC.unsigned_char;
|
|
type Wind_Fill_2 is array (16#48# .. 16#107#) of IC.unsigned_char;
|
|
|
|
type Wind_TCB is record
|
|
Fill_1 : Wind_Fill_1; -- 0x00 - 0x3f
|
|
Priority : IC.int; -- 0x40 - 0x43, current (inherited) priority
|
|
Normal_Priority : IC.int; -- 0x44 - 0x47, base priority
|
|
Fill_2 : Wind_Fill_2; -- 0x48 - 0x107
|
|
spare1 : Address; -- 0x108 - 0x10b
|
|
spare2 : Address; -- 0x10c - 0x10f
|
|
spare3 : Address; -- 0x110 - 0x113
|
|
spare4 : Address; -- 0x114 - 0x117
|
|
end record;
|
|
type Wind_TCB_Ptr is access Wind_TCB;
|
|
|
|
-- Floating point context record. PPC version
|
|
|
|
FP_NUM_DREGS : constant := 32;
|
|
type Fpr_Array is array (1 .. FP_NUM_DREGS) of IC.double;
|
|
|
|
type FP_CONTEXT is record
|
|
fpr : Fpr_Array;
|
|
fpcsr : IC.int;
|
|
pad : IC.int;
|
|
end record;
|
|
pragma Convention (C, FP_CONTEXT);
|
|
|
|
Num_HW_Interrupts : constant := 256;
|
|
|
|
-- VxWorks 5.3 and 5.4 version
|
|
type TASK_DESC is record
|
|
td_id : IC.int; -- task id
|
|
td_name : Address; -- name of task
|
|
td_priority : IC.int; -- task priority
|
|
td_status : IC.int; -- task status
|
|
td_options : IC.int; -- task option bits (see below)
|
|
td_entry : Address; -- original entry point of task
|
|
td_sp : Address; -- saved stack pointer
|
|
td_pStackBase : Address; -- the bottom of the stack
|
|
td_pStackLimit : Address; -- the effective end of the stack
|
|
td_pStackEnd : Address; -- the actual end of the stack
|
|
td_stackSize : IC.int; -- size of stack in bytes
|
|
td_stackCurrent : IC.int; -- current stack usage in bytes
|
|
td_stackHigh : IC.int; -- maximum stack usage in bytes
|
|
td_stackMargin : IC.int; -- current stack margin in bytes
|
|
td_errorStatus : IC.int; -- most recent task error status
|
|
td_delay : IC.int; -- delay/timeout ticks
|
|
end record;
|
|
pragma Convention (C, TASK_DESC);
|
|
|
|
end System.VxWorks;
|