| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| -- -- |
| -- S Y S T E M . T A S K I N G . D E B U G -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1997-2005, Free Software Foundation, Inc. -- |
| -- -- |
| -- 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, 51 Franklin Street, Fifth Floor, -- |
| -- Boston, MA 02110-1301, 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 package encapsulates all direct interfaces to task debugging services |
| -- that are needed by gdb with gnat mode. |
| |
| with System.Tasking; |
| with System.OS_Interface; |
| |
| package System.Tasking.Debug is |
| pragma Preelaborate; |
| |
| ------------------------------------------ |
| -- Application-level debugging routines -- |
| ------------------------------------------ |
| |
| procedure List_Tasks; |
| -- Print a list of all the known Ada tasks with abbreviated state |
| -- information, one-per-line, to the standard error file. |
| |
| procedure Print_Current_Task; |
| -- Write information about current task, in hexadecimal, as one line, to |
| -- the standard error file. |
| |
| procedure Print_Task_Info (T : Task_Id); |
| -- Similar to Print_Current_Task, for a given task. |
| |
| procedure Set_User_State (Value : Long_Integer); |
| -- Set user state value in the current task. |
| -- This state will be displayed when calling List_Tasks or |
| -- Print_Current_Task. It is useful for setting task specific state. |
| |
| function Get_User_State return Long_Integer; |
| -- Return the user state for the current task. |
| |
| ------------------------- |
| -- General GDB support -- |
| ------------------------- |
| |
| Known_Tasks : array (0 .. 999) of Task_Id := (others => null); |
| -- Global array of tasks read by gdb, and updated by |
| -- Create_Task and Finalize_TCB |
| |
| ---------------------------------- |
| -- VxWorks specific GDB support -- |
| ---------------------------------- |
| |
| -- Although the following routines are implemented in a target independent |
| -- manner, only VxWorks currently uses them. |
| |
| procedure Task_Creation_Hook (Thread : OS_Interface.Thread_Id); |
| -- This procedure is used to notify GDB of task's creation. |
| -- It must be called by the task's creator. |
| |
| procedure Task_Termination_Hook; |
| -- This procedure is used to notify GDB of task's termination. |
| |
| procedure Suspend_All_Tasks (Thread_Self : OS_Interface.Thread_Id); |
| -- Suspend all the tasks except the one whose associated thread is |
| -- Thread_Self by traversing All_Tasks_Lists and calling |
| -- System.Task_Primitives.Operations.Suspend_Task. |
| |
| procedure Resume_All_Tasks (Thread_Self : OS_Interface.Thread_Id); |
| -- Resume all the tasks except the one whose associated thread is |
| -- Thread_Self by traversing All_Tasks_Lists and calling |
| -- System.Task_Primitives.Operations.Continue_Task. |
| |
| ------------------------------- |
| -- Run-time tracing routines -- |
| ------------------------------- |
| |
| procedure Trace |
| (Self_Id : Task_Id; |
| Msg : String; |
| Flag : Character; |
| Other_Id : Task_Id := null); |
| -- If traces for Flag are enabled, display on Standard_Error a given |
| -- message for the current task. Other_Id is an optional second task id |
| -- to display. |
| |
| procedure Set_Trace |
| (Flag : Character; |
| Value : Boolean := True); |
| -- Enable or disable tracing for Flag. |
| -- By default, flags in the range 'A' .. 'Z' are disabled, others are |
| -- enabled. |
| |
| end System.Tasking.Debug; |
