gcc/ada/libgnarl/s-vxwext__kernel.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                  GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                --
   4 --                                                                          --
   5 --                     S Y S T E M . V X W O R K S . E X T                  --
   6 --                                                                          --
   7 --                                   S p e c                                --
   8 --                                                                          --
   9 --            Copyright (C) 2008-2024, Free Software Foundation, Inc.       --
  10 --                                                                          --
  11 -- GNARL is free software;  you can redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 ------------------------------------------------------------------------------
  28
  29 --  This package provides vxworks specific support functions needed
  30 --  by System.OS_Interface.
  31
  32 --  This is the VxWorks 6 kernel version of this package
  33
  34 with Interfaces.C;
  35
  36 package System.VxWorks.Ext is
  37    pragma Preelaborate;
  38
  39    subtype SEM_ID is Long_Integer;
  40    --  typedef struct semaphore *SEM_ID;
  41
  42    type sigset_t is mod 2 ** Long_Long_Integer'Size;
  43
  44    type t_id is new Long_Integer;
  45    subtype int is Interfaces.C.int;
  46    subtype unsigned is Interfaces.C.unsigned;
  47
  48    type STATUS is new int;
  49    --  Equivalent of the C type STATUS
  50
  51    OK    : constant STATUS := 0;
  52    ERROR : constant STATUS := -1;
  53
  54    type BOOL is new int;
  55    --  Equivalent of the C type BOOL
  56
  57    type vx_freq_t is new unsigned;
  58    --  Equivalent of the C type _Vx_freq_t
  59
  60    type Interrupt_Handler is access procedure (parameter : System.Address);
  61    pragma Convention (C, Interrupt_Handler);
  62
  63    type Interrupt_Vector is new System.Address;
  64
  65    function Int_Lock return int;
  66    pragma Convention (C, Int_Lock);
  67
  68    procedure Int_Unlock (Old : int);
  69    pragma Convention (C, Int_Unlock);
  70
  71    function Interrupt_Connect
  72      (Vector    : Interrupt_Vector;
  73       Handler   : Interrupt_Handler;
  74       Parameter : System.Address := System.Null_Address) return STATUS;
  75    pragma Import (C, Interrupt_Connect, "intConnect");
  76
  77    function Interrupt_Context return BOOL;
  78    pragma Import (C, Interrupt_Context, "intContext");
  79
  80    function Interrupt_Number_To_Vector
  81      (intNum : int) return Interrupt_Vector;
  82    pragma Import (C, Interrupt_Number_To_Vector, "__gnat_inum_to_ivec");
  83
  84    function semDelete (Sem : SEM_ID) return STATUS;
  85    pragma Convention (C, semDelete);
  86
  87    function Task_Cont (tid : t_id) return STATUS;
  88    pragma Convention (C, Task_Cont);
  89
  90    function Task_Stop (tid : t_id) return STATUS;
  91    pragma Convention (C, Task_Stop);
  92
  93    function kill (pid : t_id; sig : int) return int;
  94    pragma Import (C, kill, "kill");
  95
  96    function getpid return t_id;
  97    pragma Import (C, getpid, "taskIdSelf");
  98
  99    function Set_Time_Slice (ticks : int) return STATUS;
 100    pragma Import (C, Set_Time_Slice, "kernelTimeSlice");
 101
 102    type UINT64 is mod 2 ** Long_Long_Integer'Size;
 103
 104    function tickGet return UINT64;
 105    --  Needed for ravenscar-cert
 106    pragma Import (C, tickGet, "tick64Get");
 107
 108    --------------------------------
 109    -- Processor Affinity for SMP --
 110    --------------------------------
 111
 112    function taskCpuAffinitySet (tid : t_id; CPU : int) return int;
 113    pragma Convention (C, taskCpuAffinitySet);
 114    --  For SMP run-times set the CPU affinity.
 115    --  For uniprocessor systems return ERROR status.
 116
 117    function taskMaskAffinitySet (tid : t_id; CPU_Set : unsigned) return int;
 118    pragma Convention (C, taskMaskAffinitySet);
 119    --  For SMP run-times set the CPU mask affinity.
 120    --  For uniprocessor systems return ERROR status.
 121
 122 end System.VxWorks.Ext;