mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-03 16:54:27 +08:00
5rosinte.ads: Add SIGXCPU.
2003-01-29 Joel Sherrill <joel@OARcorp.com> * 5rosinte.ads: Add SIGXCPU. * 5rtpopsp.adb: New file. * Make-lang.in: Do not build gnatpsta and gnatpsys when cross. * Makefile.in: Recognize more RTEMS targets and add the RTEMS specific file 5rtpopsp.adb. * adaint.h: Add include of <stdio.h> when target is RTEMS. This is likely needed for all newlib targets. * init.c: Add RTEMS specific version of __gnat_initialize(). From-SVN: r62098
This commit is contained in:
Joel Sherrill
Joel Sherrill
parent
204c43d642
commit
c4039eb00f
@ -7,7 +7,7 @@
|
||||
-- S p e c --
|
||||
-- --
|
||||
-- --
|
||||
-- Copyright (C) 1997-2001 Free Software Foundation, Inc. --
|
||||
-- Copyright (C) 1997-2003 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- --
|
||||
@ -106,6 +106,7 @@ package System.OS_Interface is
|
||||
SIGTERM : constant := 15; -- software termination signal from kill
|
||||
SIGUSR1 : constant := 16; -- user defined signal 1
|
||||
SIGUSR2 : constant := 17; -- user defined signal 2
|
||||
SIGXCPU : constant := 0; -- XCPU
|
||||
|
||||
SIGADAABORT : constant := SIGABRT;
|
||||
|
||||
|
||||
266
gcc/ada/5rtpopsp.adb
Normal file
266
gcc/ada/5rtpopsp.adb
Normal file
@ -0,0 +1,266 @@
|
||||
------------------------------------------------------------------------------
|
||||
-- --
|
||||
-- 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 . O P E R A T I O N S . --
|
||||
-- S P E C I F I C --
|
||||
-- --
|
||||
-- B o d y --
|
||||
-- --
|
||||
-- $Revision: 1.7 $
|
||||
-- --
|
||||
-- Copyright (C) 1991-2003, Florida State University --
|
||||
-- --
|
||||
-- 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 a POSIX version of this package where foreign threads are
|
||||
-- recognized.
|
||||
-- Currently, DEC Unix, SCO UnixWare 7 and RTEMS use this version.
|
||||
|
||||
with System.Soft_Links;
|
||||
-- used to initialize TSD for a C thread, in function Self
|
||||
|
||||
separate (System.Task_Primitives.Operations)
|
||||
package body Specific is
|
||||
|
||||
------------------
|
||||
-- Local Data --
|
||||
------------------
|
||||
|
||||
-- The followings are logically constants, but need to be initialized
|
||||
-- at run time.
|
||||
|
||||
-- The following gives the Ada run-time direct access to a variable
|
||||
-- context switched by RTEMS at the lowest level.
|
||||
|
||||
RTEMS_Ada_Self : System.Address;
|
||||
pragma Import (C, RTEMS_Ada_Self, "rtems_ada_self");
|
||||
|
||||
-- The following are used to allow the Self function to
|
||||
-- automatically generate ATCB's for C threads that happen to call
|
||||
-- Ada procedure, which in turn happen to call the Ada runtime system.
|
||||
|
||||
type Fake_ATCB;
|
||||
type Fake_ATCB_Ptr is access Fake_ATCB;
|
||||
type Fake_ATCB is record
|
||||
Stack_Base : Interfaces.C.unsigned := 0;
|
||||
-- A value of zero indicates the node is not in use.
|
||||
Next : Fake_ATCB_Ptr;
|
||||
Real_ATCB : aliased Ada_Task_Control_Block (0);
|
||||
end record;
|
||||
|
||||
Fake_ATCB_List : Fake_ATCB_Ptr;
|
||||
-- A linear linked list.
|
||||
-- The list is protected by All_Tasks_L;
|
||||
-- Nodes are added to this list from the front.
|
||||
-- Once a node is added to this list, it is never removed.
|
||||
|
||||
Fake_Task_Elaborated : aliased Boolean := True;
|
||||
-- Used to identified fake tasks (i.e., non-Ada Threads).
|
||||
|
||||
Next_Fake_ATCB : Fake_ATCB_Ptr;
|
||||
-- Used to allocate one Fake_ATCB in advance. See comment in New_Fake_ATCB
|
||||
|
||||
-----------------------
|
||||
-- Local Subprograms --
|
||||
-----------------------
|
||||
|
||||
---------------------------------
|
||||
-- Support for New_Fake_ATCB --
|
||||
---------------------------------
|
||||
|
||||
function New_Fake_ATCB return Task_ID;
|
||||
-- Allocate and Initialize a new ATCB. This code can safely be called from
|
||||
-- a foreign thread, as it doesn't access implicitely or explicitely
|
||||
-- "self" before having initialized the new ATCB.
|
||||
|
||||
-------------------
|
||||
-- New_Fake_ATCB --
|
||||
-------------------
|
||||
|
||||
function New_Fake_ATCB return Task_ID is
|
||||
Self_ID : Task_ID;
|
||||
P, Q : Fake_ATCB_Ptr;
|
||||
Succeeded : Boolean;
|
||||
|
||||
begin
|
||||
-- This section is ticklish.
|
||||
-- We dare not call anything that might require an ATCB, until
|
||||
-- we have the new ATCB in place.
|
||||
|
||||
Write_Lock (All_Tasks_L'Access);
|
||||
Q := null;
|
||||
P := Fake_ATCB_List;
|
||||
|
||||
while P /= null loop
|
||||
if P.Stack_Base = 0 then
|
||||
Q := P;
|
||||
end if;
|
||||
|
||||
P := P.Next;
|
||||
end loop;
|
||||
|
||||
if Q = null then
|
||||
|
||||
-- Create a new ATCB with zero entries.
|
||||
|
||||
Self_ID := Next_Fake_ATCB.Real_ATCB'Access;
|
||||
Next_Fake_ATCB.Stack_Base := 1;
|
||||
Next_Fake_ATCB.Next := Fake_ATCB_List;
|
||||
Fake_ATCB_List := Next_Fake_ATCB;
|
||||
Next_Fake_ATCB := null;
|
||||
|
||||
else
|
||||
-- Reuse an existing fake ATCB.
|
||||
|
||||
Self_ID := Q.Real_ATCB'Access;
|
||||
Q.Stack_Base := 1;
|
||||
end if;
|
||||
|
||||
-- Record this as the Task_ID for the current thread.
|
||||
|
||||
Self_ID.Common.LL.Thread := pthread_self;
|
||||
|
||||
RTEMS_Ada_Self := To_Address (Self_ID);
|
||||
|
||||
-- Do the standard initializations
|
||||
|
||||
System.Tasking.Initialize_ATCB
|
||||
(Self_ID, null, Null_Address, Null_Task, Fake_Task_Elaborated'Access,
|
||||
System.Priority'First, Task_Info.Unspecified_Task_Info, 0, Self_ID,
|
||||
Succeeded);
|
||||
pragma Assert (Succeeded);
|
||||
|
||||
-- Finally, it is safe to use an allocator in this thread.
|
||||
|
||||
if Next_Fake_ATCB = null then
|
||||
Next_Fake_ATCB := new Fake_ATCB;
|
||||
end if;
|
||||
|
||||
Self_ID.Common.State := Runnable;
|
||||
Self_ID.Awake_Count := 1;
|
||||
|
||||
-- Since this is not an ordinary Ada task, we will start out undeferred
|
||||
|
||||
Self_ID.Deferral_Level := 0;
|
||||
|
||||
System.Soft_Links.Create_TSD (Self_ID.Common.Compiler_Data);
|
||||
|
||||
-- ????
|
||||
-- The following call is commented out to avoid dependence on
|
||||
-- the System.Tasking.Initialization package.
|
||||
-- It seems that if we want Ada.Task_Attributes to work correctly
|
||||
-- for C threads we will need to raise the visibility of this soft
|
||||
-- link to System.Soft_Links.
|
||||
-- We are putting that off until this new functionality is otherwise
|
||||
-- stable.
|
||||
-- System.Tasking.Initialization.Initialize_Attributes_Link.all (T);
|
||||
|
||||
for J in Known_Tasks'Range loop
|
||||
if Known_Tasks (J) = null then
|
||||
Known_Tasks (J) := Self_ID;
|
||||
Self_ID.Known_Tasks_Index := J;
|
||||
exit;
|
||||
end if;
|
||||
end loop;
|
||||
|
||||
-- Must not unlock until Next_ATCB is again allocated.
|
||||
|
||||
Unlock (All_Tasks_L'Access);
|
||||
return Self_ID;
|
||||
end New_Fake_ATCB;
|
||||
|
||||
----------------
|
||||
-- Initialize --
|
||||
----------------
|
||||
|
||||
procedure Initialize (Environment_Task : Task_ID) is
|
||||
|
||||
begin
|
||||
RTEMS_Ada_Self := To_Address (Environment_Task);
|
||||
|
||||
-- Create a free ATCB for use on the Fake_ATCB_List.
|
||||
|
||||
Next_Fake_ATCB := new Fake_ATCB;
|
||||
end Initialize;
|
||||
|
||||
---------
|
||||
-- Set --
|
||||
---------
|
||||
|
||||
procedure Set (Self_Id : Task_ID) is
|
||||
|
||||
begin
|
||||
RTEMS_Ada_Self := To_Address (Self_Id);
|
||||
end Set;
|
||||
|
||||
----------
|
||||
-- Self --
|
||||
----------
|
||||
|
||||
-- To make Ada tasks and C threads interoperate better, we have
|
||||
-- added some functionality to Self. Suppose a C main program
|
||||
-- (with threads) calls an Ada procedure and the Ada procedure
|
||||
-- calls the tasking runtime system. Eventually, a call will be
|
||||
-- made to self. Since the call is not coming from an Ada task,
|
||||
-- there will be no corresponding ATCB.
|
||||
|
||||
-- (The entire Ada run-time system may not have been elaborated,
|
||||
-- either, but that is a different problem, that we will need to
|
||||
-- solve another way.)
|
||||
|
||||
-- What we do in Self is to catch references that do not come
|
||||
-- from recognized Ada tasks, and create an ATCB for the calling
|
||||
-- thread.
|
||||
|
||||
-- The new ATCB will be "detached" from the normal Ada task
|
||||
-- master hierarchy, much like the existing implicitly created
|
||||
-- signal-server tasks.
|
||||
|
||||
-- We will also use such points to poll for disappearance of the
|
||||
-- threads associated with any implicit ATCBs that we created
|
||||
-- earlier, and take the opportunity to recover them.
|
||||
|
||||
-- A nasty problem here is the limitations of the compilation
|
||||
-- order dependency, and in particular the GNARL/GNULLI layering.
|
||||
-- To initialize an ATCB we need to assume System.Tasking has
|
||||
-- been elaborated.
|
||||
|
||||
function Self return Task_ID is
|
||||
Result : System.Address;
|
||||
|
||||
begin
|
||||
Result := RTEMS_Ada_Self;
|
||||
|
||||
-- If the key value is Null, then it is a non-Ada task.
|
||||
|
||||
if Result = System.Null_Address then
|
||||
return New_Fake_ATCB;
|
||||
end if;
|
||||
|
||||
return To_Task_ID (Result);
|
||||
end Self;
|
||||
|
||||
end Specific;
|
||||
@ -1,3 +1,14 @@
|
||||
2003-01-29 Joel Sherrill <joel@OARcorp.com>
|
||||
|
||||
* 5rosinte.ads: Add SIGXCPU.
|
||||
* 5rtpopsp.adb: New file.
|
||||
* Make-lang.in: Do not build gnatpsta and gnatpsys when cross.
|
||||
* Makefile.in: Recognize more RTEMS targets and add the RTEMS
|
||||
specific file 5rtpopsp.adb.
|
||||
* adaint.h: Add include of <stdio.h> when target is RTEMS. This
|
||||
is likely needed for all newlib targets.
|
||||
* init.c: Add RTEMS specific version of __gnat_initialize().
|
||||
|
||||
2003-01-28 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
|
||||
|
||||
* adaint.c, adaint.h, gmem.c, init.c: Update copyright year.
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
# Top level makefile fragment for GNU Ada (GNAT).
|
||||
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
|
||||
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
|
||||
# Free Software Foundation, Inc.
|
||||
|
||||
#This file is part of GNU CC.
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
# Makefile for GNU Ada Compiler (GNAT).
|
||||
# Copyright (C) 1994-2002 Free Software Foundation, Inc.
|
||||
# Copyright (C) 1994-2003 Free Software Foundation, Inc.
|
||||
|
||||
#This file is part of GNU CC.
|
||||
|
||||
@ -875,7 +875,7 @@ ifeq ($(strip $(filter-out lynxos,$(osys))),)
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(strip $(filter-out rtems,$(osys))),)
|
||||
ifeq ($(strip $(filter-out rtems rtemself rtemsaout rtemscoff,$(osys))),)
|
||||
LIBGNAT_TARGET_PAIRS = \
|
||||
a-intnam.ads<4rintnam.ads \
|
||||
s-inmaop.adb<7sinmaop.adb \
|
||||
@ -886,7 +886,7 @@ ifeq ($(strip $(filter-out rtems,$(osys))),)
|
||||
s-parame.adb<5rparame.adb \
|
||||
s-taprop.adb<7staprop.adb \
|
||||
s-taspri.ads<7staspri.ads \
|
||||
s-tpopsp.adb<5atpopsp.adb
|
||||
s-tpopsp.adb<5rtpopsp.adb
|
||||
endif
|
||||
|
||||
ifeq ($(strip $(filter-out go32 msdos,$(osys))),)
|
||||
|
||||
@ -31,6 +31,10 @@
|
||||
* *
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(__rtems__)
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
#include <dirent.h>
|
||||
|
||||
extern int __gnat_max_path_len;
|
||||
|
||||
@ -1635,6 +1635,22 @@ __gnat_initialize ()
|
||||
#endif
|
||||
}
|
||||
|
||||
/***************************************/
|
||||
/* __gnat_initialize (RTEMS version) */
|
||||
/***************************************/
|
||||
|
||||
#elif defined(__rtems__)
|
||||
|
||||
extern void __gnat_install_handler ();
|
||||
|
||||
/* For RTEMS, each bsp will provide a custom __gnat_install_handler (). */
|
||||
|
||||
void
|
||||
__gnat_initialize ()
|
||||
{
|
||||
__gnat_install_handler ();
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
/* For all other versions of GNAT, the initialize routine and handler
|
||||
|
||||
Loading…
Reference in New Issue
Block a user