2008-03-26 Arnaud Charlet <charlet@adacore.com>

	* s-taprop-irix.adb, s-taprop-tru64.adb, s-taprop-lynxos.adb, 
	s-taprop-linux.adb, s-taprop-mingw.adb, s-taprop-vxworks.adb, 
	s-taprop-posix.adb (Create_Task): Do not attempt to set task priority
	or task info if the thread could not be created.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@133547 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 23 insertions, 28 deletions

diff --git a/gcc/ada/s-taprop-vxworks.adb b/gcc/ada/s-taprop-vxworks.adb
index 5eb4bc99a68..c6469cd2b05 100644
--- a/gcc/ada/s-taprop-vxworks.adb
+++ b/gcc/ada/s-taprop-vxworks.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                  B o d y                                 --
 --                                                                          --
---         Copyright (C) 1992-2007, Free Software Foundation, Inc.          --
+--         Copyright (C) 1992-2008, 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- --
@@ -33,35 +33,27 @@
 
 --  This is the VxWorks version of this package
 
---  This package contains all the GNULL primitives that interface directly
---  with the underlying OS.
+--  This package contains all the GNULL primitives that interface directly with
+--  the underlying OS.
 
 pragma Polling (Off);
---  Turn off polling, we do not want ATC polling to take place during
---  tasking operations. It causes infinite loops and other problems.
+--  Turn off polling, we do not want ATC polling to take place during tasking
+--  operations. It causes infinite loops and other problems.
 
-with System.Tasking.Debug;
---  used for Known_Tasks
-
-with System.Interrupt_Management;
---  used for Keep_Unmasked
---           Abort_Task_Interrupt
---           Signal_ID
---           Initialize_Interrupts
+with Ada.Unchecked_Conversion;
+with Ada.Unchecked_Deallocation;
 
 with Interfaces.C;
 
-with System.Soft_Links;
---  used for Abort_Defer/Undefer
+with System.Tasking.Debug;
+with System.Interrupt_Management;
 
+with System.Soft_Links;
 --  We use System.Soft_Links instead of System.Tasking.Initialization
---  because the later is a higher level package that we shouldn't depend on.
---  For example when using the restricted run time, it is replaced by
+--  because the later is a higher level package that we shouldn't depend
+--  on. For example when using the restricted run time, it is replaced by
 --  System.Tasking.Restricted.Stages.
 
-with Ada.Unchecked_Conversion;
-with Ada.Unchecked_Deallocation;
-
 package body System.Task_Primitives.Operations is
 
    package SSL renames System.Soft_Links;
@@ -754,9 +746,9 @@ package body System.Task_Primitives.Operations is
    pragma Atomic_Components (Prio_Array_Type);
 
    Prio_Array : Prio_Array_Type;
-   --  Global array containing the id of the currently running task for
-   --  each priority. Note that we assume that we are on a single processor
-   --  with run-till-blocked scheduling.
+   --  Global array containing the id of the currently running task for each
+   --  priority. Note that we assume that we are on a single processor with
+   --  run-till-blocked scheduling.
 
    procedure Set_Priority
      (T                   : Task_Id;
@@ -776,7 +768,7 @@ package body System.Task_Primitives.Operations is
         and then Loss_Of_Inheritance
         and then Prio < T.Common.Current_Priority
       then
-         --  Annex D requirement (RM D.2.2(9))
+         --  Annex D requirement (RM D.2.2(9)):
 
          --    If the task drops its priority due to the loss of inherited
          --    priority, it is added at the head of the ready queue for its
@@ -852,7 +844,8 @@ package body System.Task_Primitives.Operations is
 
       Unlock_RTS;
 
-      --  If stack checking is enabled set the stack limit for this task.
+      --  If stack checking is enabled, set the stack limit for this task
+
       if Set_Stack_Limit_Hook /= null then
          Set_Stack_Limit_Hook.all;
       end if;
@@ -985,10 +978,9 @@ package body System.Task_Primitives.Operations is
          Succeeded := False;
       else
          Succeeded := True;
+         Task_Creation_Hook (T.Common.LL.Thread);
+         Set_Priority (T, Priority);
       end if;
-
-      Task_Creation_Hook (T.Common.LL.Thread);
-      Set_Priority (T, Priority);
    end Create_Task;
 
    ------------------
@@ -1077,6 +1069,9 @@ package body System.Task_Primitives.Operations is
    --------------
 
    procedure Finalize (S : in out Suspension_Object) is
+      pragma Unmodified (S);
+      --  S may be modified on other targets, but not on VxWorks
+
       Result : STATUS;
 
    begin