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-rw-r--r--translate/grt/grt-cbinding.c3
-rw-r--r--translate/grt/grt-processes.adb54
-rw-r--r--translate/grt/grt-processes.ads38
-rw-r--r--translate/grt/grt-stacks.ads21
4 files changed, 64 insertions, 52 deletions
diff --git a/translate/grt/grt-cbinding.c b/translate/grt/grt-cbinding.c
index eb04a9cc3..a913a4453 100644
--- a/translate/grt/grt-cbinding.c
+++ b/translate/grt/grt-cbinding.c
@@ -18,6 +18,7 @@
*/
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
FILE *
__ghdl_get_stdout (void)
@@ -56,7 +57,7 @@ __ghdl_fprintf_clock (FILE *stream, int a, int b)
fprintf (stream, "%3d.%03d", a, b);
}
-#if 1
+#ifndef WITH_GNAT_RUN_TIME
void
__gnat_last_chance_handler (void)
{
diff --git a/translate/grt/grt-processes.adb b/translate/grt/grt-processes.adb
index 0a57565cd..0e34d9f45 100644
--- a/translate/grt/grt-processes.adb
+++ b/translate/grt/grt-processes.adb
@@ -23,7 +23,6 @@ pragma Unreferenced (System.Storage_Elements);
with Grt.Disp;
with Grt.Astdio;
with Grt.Errors; use Grt.Errors;
-with Grt.Stacks; use Grt.Stacks;
with Grt.Options;
with Grt.Rtis_Addr; use Grt.Rtis_Addr;
with Grt.Rtis_Utils;
@@ -46,15 +45,12 @@ package body Grt.Processes is
Table_Low_Bound => 1,
Table_Initial => 16);
- function To_Proc_Acc is new Ada.Unchecked_Conversion
- (Source => System.Address, Target => Proc_Acc);
-
type Finalizer_Type is record
-- Subprogram containing process code.
Subprg : Proc_Acc;
-- Instance (THIS parameter) for the subprogram.
- This : System.Address;
+ This : Instance_Acc;
end record;
-- List of finalizer.
@@ -111,8 +107,8 @@ package body Grt.Processes is
return Nbr_Resumed_Processes;
end Get_Nbr_Resumed_Processes;
- procedure Process_Register (This : System.Address;
- Proc : System.Address;
+ procedure Process_Register (This : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Rti_Context;
State : Process_State;
Postponed : Boolean)
@@ -128,7 +124,7 @@ package body Grt.Processes is
else
Stack := Null_Stack;
end if;
- P := new Process_Type'(Subprg => To_Proc_Acc (Proc),
+ P := new Process_Type'(Subprg => Proc,
This => This,
Rti => Ctxt,
Sensitivity => null,
@@ -150,8 +146,8 @@ package body Grt.Processes is
end Process_Register;
procedure Ghdl_Process_Register
- (Instance : System.Address;
- Proc : System.Address;
+ (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address)
is
@@ -160,8 +156,8 @@ package body Grt.Processes is
end Ghdl_Process_Register;
procedure Ghdl_Sensitized_Process_Register
- (Instance : System.Address;
- Proc : System.Address;
+ (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address)
is
@@ -170,8 +166,8 @@ package body Grt.Processes is
end Ghdl_Sensitized_Process_Register;
procedure Ghdl_Postponed_Process_Register
- (Instance : System.Address;
- Proc : System.Address;
+ (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address)
is
@@ -180,8 +176,8 @@ package body Grt.Processes is
end Ghdl_Postponed_Process_Register;
procedure Ghdl_Postponed_Sensitized_Process_Register
- (Instance : System.Address;
- Proc : System.Address;
+ (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address)
is
@@ -189,12 +185,10 @@ package body Grt.Processes is
Process_Register (Instance, Proc, (Addr, Ctxt), State_Sensitized, True);
end Ghdl_Postponed_Sensitized_Process_Register;
- procedure Verilog_Process_Register (This : System.Address;
- Proc : System.Address;
+ procedure Verilog_Process_Register (This : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Rti_Context)
is
- function To_Proc_Acc is new Ada.Unchecked_Conversion
- (Source => System.Address, Target => Proc_Acc);
P : Process_Acc;
begin
P := new Process_Type'(Rti => Ctxt,
@@ -205,7 +199,7 @@ package body Grt.Processes is
Timeout => Bad_Time,
Timeout_Chain_Next => null,
Timeout_Chain_Prev => null,
- Subprg => To_Proc_Acc (Proc),
+ Subprg => Proc,
This => This,
Stack => Null_Stack);
Process_Table.Append (P);
@@ -213,15 +207,15 @@ package body Grt.Processes is
Set_Current_Process (P);
end Verilog_Process_Register;
- procedure Ghdl_Initial_Register (Instance : System.Address;
- Proc : System.Address)
+ procedure Ghdl_Initial_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc)
is
begin
Verilog_Process_Register (Instance, Proc, Null_Context);
end Ghdl_Initial_Register;
- procedure Ghdl_Always_Register (Instance : System.Address;
- Proc : System.Address)
+ procedure Ghdl_Always_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc)
is
begin
Verilog_Process_Register (Instance, Proc, Null_Context);
@@ -234,11 +228,11 @@ package body Grt.Processes is
(Sig, Process_Table.Table (Process_Table.Last));
end Ghdl_Process_Add_Sensitivity;
- procedure Ghdl_Finalize_Register (Instance : System.Address;
- Proc : System.Address)
+ procedure Ghdl_Finalize_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc)
is
begin
- Finalizer_Table.Append (Finalizer_Type'(To_Proc_Acc (Proc), Instance));
+ Finalizer_Table.Append (Finalizer_Type'(Proc, Instance));
end Ghdl_Finalize_Register;
procedure Call_Finalizers is
@@ -667,7 +661,7 @@ package body Grt.Processes is
Grt.Astdio.Put ("run process ");
Disp_Process_Name (Stdio.stdout, Proc);
Grt.Astdio.Put (" [");
- Grt.Astdio.Put (Stdio.stdout, Proc.This);
+ Grt.Astdio.Put (Stdio.stdout, To_Address (Proc.This));
Grt.Astdio.Put ("]");
Grt.Astdio.New_Line;
end if;
@@ -720,7 +714,7 @@ package body Grt.Processes is
Grt.Astdio.Put ("run process ");
Disp_Process_Name (Stdio.stdout, Proc);
Grt.Astdio.Put (" [");
- Grt.Astdio.Put (Stdio.stdout, Proc.This);
+ Grt.Astdio.Put (Stdio.stdout, To_Address (Proc.This));
Grt.Astdio.Put ("]");
Grt.Astdio.New_Line;
end if;
diff --git a/translate/grt/grt-processes.ads b/translate/grt/grt-processes.ads
index 3218d7286..e1ac95336 100644
--- a/translate/grt/grt-processes.ads
+++ b/translate/grt/grt-processes.ads
@@ -19,7 +19,7 @@ with System;
with Grt.Stack2; use Grt.Stack2;
with Grt.Types; use Grt.Types;
with Grt.Signals; use Grt.Signals;
-with Grt.Stacks;
+with Grt.Stacks; use Grt.Stacks;
with Grt.Rtis; use Grt.Rtis;
with Grt.Rtis_Addr;
with Grt.Stdio;
@@ -63,31 +63,32 @@ package Grt.Processes is
-- Register a process during elaboration.
-- This procedure is called by vhdl elaboration code.
- procedure Ghdl_Process_Register (Instance : System.Address;
- Proc : System.Address;
+ procedure Ghdl_Process_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address);
- procedure Ghdl_Sensitized_Process_Register (Instance : System.Address;
- Proc : System.Address;
+ procedure Ghdl_Sensitized_Process_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address);
- procedure Ghdl_Postponed_Process_Register (Instance : System.Address;
- Proc : System.Address;
+ procedure Ghdl_Postponed_Process_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address);
procedure Ghdl_Postponed_Sensitized_Process_Register
- (Instance : System.Address;
- Proc : System.Address;
+ (Instance : Instance_Acc;
+ Proc : Proc_Acc;
Ctxt : Ghdl_Rti_Access;
Addr : System.Address);
- procedure Ghdl_Finalize_Register (Instance : System.Address;
- Proc : System.Address);
+ -- For verilog processes.
+ procedure Ghdl_Finalize_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc);
- procedure Ghdl_Initial_Register (Instance : System.Address;
- Proc : System.Address);
- procedure Ghdl_Always_Register (Instance : System.Address;
- Proc : System.Address);
+ procedure Ghdl_Initial_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc);
+ procedure Ghdl_Always_Register (Instance : Instance_Acc;
+ Proc : Proc_Acc);
-- Add a simple signal in the sensitivity of the last registered
-- (sensitized) process.
@@ -113,6 +114,7 @@ package Grt.Processes is
-- Verilog.
procedure Ghdl_Process_Delay (Del : Ghdl_U32);
+ -- Secondary stack.
function Ghdl_Stack2_Allocate (Size : Ghdl_Index_Type)
return System.Address;
function Ghdl_Stack2_Mark return Mark_Id;
@@ -125,10 +127,6 @@ package Grt.Processes is
procedure Ghdl_Protected_Fini (Obj : System.Address);
private
- -- Access to a process subprogram.
- type Proc_Acc is access procedure (Self : System.Address);
- pragma Convention (C, Proc_Acc);
-
-- State of a process.
type Process_State is
(
@@ -164,7 +162,7 @@ private
Subprg : Proc_Acc;
-- Instance (THIS parameter) for the subprogram.
- This : System.Address;
+ This : Instance_Acc;
-- Name of the process.
Rti : Rtis_Addr.Rti_Context;
diff --git a/translate/grt/grt-stacks.ads b/translate/grt/grt-stacks.ads
index 920012cba..30b9f05b7 100644
--- a/translate/grt/grt-stacks.ads
+++ b/translate/grt/grt-stacks.ads
@@ -16,8 +16,24 @@
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with System; use System;
+with Ada.Unchecked_Conversion;
package Grt.Stacks is
+ -- Instance is the parameter of the process procedure.
+ -- This is in fact a fully opaque type whose content is private to the
+ -- process.
+ type Instance is limited private;
+ type Instance_Acc is access all Instance;
+ pragma Convention (C, Instance_Acc);
+
+ -- A process is identified by a procedure having a single private
+ -- parameter (its instance).
+ type Proc_Acc is access procedure (Self : Instance_Acc);
+ pragma Convention (C, Proc_Acc);
+
+ function To_Address is new Ada.Unchecked_Conversion
+ (Instance_Acc, System.Address);
+
type Stack_Type is new Address;
Null_Stack : constant Stack_Type := Stack_Type (Null_Address);
@@ -28,7 +44,8 @@ package Grt.Stacks is
-- Create a new stack, which on first execution will call FUNC with
-- an argument ARG.
- function Stack_Create (Func : Address; Arg : Address) return Stack_Type;
+ function Stack_Create (Func : Proc_Acc; Arg : Instance_Acc)
+ return Stack_Type;
-- Resume stack TO and save the current context to the stack pointed by
-- CUR.
@@ -50,6 +67,8 @@ package Grt.Stacks is
procedure Error_Null_Access;
pragma No_Return (Error_Null_Access);
private
+ type Instance is null record;
+
pragma Import (C, Stack_Init, "grt_stack_init");
pragma Import (C, Stack_Create, "grt_stack_create");
pragma Import (C, Stack_Switch, "grt_stack_switch");