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------------------------------------------------------------------------------
-- --
-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . T A S K _ P R I M I T I V E S . G E N _ T C B I N F --
-- --
-- B o d y --
-- --
-- Copyright (C) 1999-2000 Free Software Fundation --
-- --
-- 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. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This is an SGI Irix version of this package
-- This procedure creates the file "a-tcbinf.c"
-- "A-tcbinf.c" is subsequently compiled and made part of the RTL
-- to be referenced by the SGI Workshop debugger. The main procedure:
-- "Gen_Tcbinf" imports this child procedure and runs as part of the
-- RTL build process. Because of the complex process used to build
-- the GNAT RTL for all the different systems and the frequent changes
-- made to the internal data structures, its impractical to create
-- "a-tcbinf.c" using a standalone process.
with System.Tasking;
with Ada.Text_IO;
with Unchecked_Conversion;
procedure System.Task_Primitives.Gen_Tcbinf is
use System.Tasking;
subtype Version_String is String (1 .. 4);
Version : constant Version_String := "3.11";
function To_Integer is new Unchecked_Conversion
(Version_String, Integer);
type Dummy_TCB_Ptr is access Ada_Task_Control_Block (Entry_Num => 0);
Dummy_TCB : constant Dummy_TCB_Ptr := new Ada_Task_Control_Block (0);
C_File : Ada.Text_IO.File_Type;
procedure Pl (S : String);
procedure Nl (C : Ada.Text_IO.Positive_Count := 1);
function State_Name (S : Task_States) return String;
procedure Pl (S : String) is
begin
Ada.Text_IO.Put_Line (C_File, S);
end Pl;
procedure Nl (C : Ada.Text_IO.Positive_Count := 1) is
begin
Ada.Text_IO.New_Line (C_File, C);
end Nl;
function State_Name (S : Task_States) return String is
begin
case S is
when Unactivated =>
return "Unactivated";
when Runnable =>
return "Runnable";
when Terminated =>
return "Terminated";
when Activator_Sleep =>
return "Child Activation Wait";
when Acceptor_Sleep =>
return "Accept/Select Wait";
when Entry_Caller_Sleep =>
return "Waiting on Entry Call";
when Async_Select_Sleep =>
return "Async_Select Wait";
when Delay_Sleep =>
return "Delay Sleep";
when Master_Completion_Sleep =>
return "Child Termination Wait";
when Master_Phase_2_Sleep =>
return "Wait Child in Term Alt";
when Interrupt_Server_Idle_Sleep =>
return "Int Server Idle Sleep";
when Interrupt_Server_Blocked_Interrupt_Sleep =>
return "Int Server Blk Int Sleep";
when Timer_Server_Sleep =>
return "Timer Server Sleep";
when AST_Server_Sleep =>
return "AST Server Sleep";
when Asynchronous_Hold =>
return "Asynchronous Hold";
when Interrupt_Server_Blocked_On_Event_Flag =>
return "Int Server Blk Evt Flag";
end case;
end State_Name;
All_Tasks_Link_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.All_Tasks_Link'Position;
Entry_Count_Offset : constant Integer
:= Dummy_TCB.Entry_Num'Position;
Entry_Point_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.Task_Entry_Point'Position;
Parent_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.Parent'Position;
Base_Priority_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.Base_Priority'Position;
Current_Priority_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.Current_Priority'Position;
Stack_Size_Offset : constant Integer
:= Dummy_TCB.Common'Position +
Dummy_TCB.Common.Compiler_Data.Pri_Stack_Info.Size'Position;
State_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.State'Position;
Task_Image_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.Task_Image'Position;
Thread_Offset : constant Integer
:= Dummy_TCB.Common'Position + Dummy_TCB.Common.LL'Position +
Dummy_TCB.Common.LL.Thread'Position;
begin
Ada.Text_IO.Create (C_File, Ada.Text_IO.Out_File, "a-tcbinf.c");
Pl ("");
Pl ("#include <sys/types.h>");
Pl ("");
Pl ("#define TCB_INFO_VERSION 2");
Pl ("#define TCB_LIBRARY_VERSION "
& Integer'Image (To_Integer (Version)));
Pl ("");
Pl ("typedef struct {");
Pl ("");
Pl (" __uint32_t info_version;");
Pl (" __uint32_t library_version;");
Pl ("");
Pl (" __uint32_t All_Tasks_Link_Offset;");
Pl (" __uint32_t Entry_Count_Offset;");
Pl (" __uint32_t Entry_Point_Offset;");
Pl (" __uint32_t Parent_Offset;");
Pl (" __uint32_t Base_Priority_Offset;");
Pl (" __uint32_t Current_Priority_Offset;");
Pl (" __uint32_t Stack_Size_Offset;");
Pl (" __uint32_t State_Offset;");
Pl (" __uint32_t Task_Image_Offset;");
Pl (" __uint32_t Thread_Offset;");
Pl ("");
Pl (" char **state_names;");
Pl (" __uint32_t state_names_max;");
Pl ("");
Pl ("} task_control_block_info_t;");
Pl ("");
Pl ("static char *accepting_state_names = NULL;");
Pl ("");
Pl ("static char *task_state_names[] = {");
for State in Task_States loop
Pl (" """ & State_Name (State) & """,");
end loop;
Pl (" """"};");
Pl ("");
Pl ("");
Pl ("task_control_block_info_t __task_control_block_info = {");
Pl ("");
Pl (" TCB_INFO_VERSION,");
Pl (" TCB_LIBRARY_VERSION,");
Pl ("");
Pl (" " & All_Tasks_Link_Offset'Img & ",");
Pl (" " & Entry_Count_Offset'Img & ",");
Pl (" " & Entry_Point_Offset'Img & ",");
Pl (" " & Parent_Offset'Img & ",");
Pl (" " & Base_Priority_Offset'Img & ",");
Pl (" " & Current_Priority_Offset'Img & ",");
Pl (" " & Stack_Size_Offset'Img & ",");
Pl (" " & State_Offset'Img & ",");
Pl (" " & Task_Image_Offset'Img & ",");
Pl (" " & Thread_Offset'Img & ",");
Pl ("");
Pl (" task_state_names,");
Pl (" sizeof (task_state_names),");
Pl ("");
Pl ("");
Pl ("};");
Ada.Text_IO.Close (C_File);
end System.Task_Primitives.Gen_Tcbinf;
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