-- Debugger for interpreter
-- Copyright (C) 2014 Tristan Gingold
--
-- GHDL is free software; you can redistribute it and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version.
--
-- GHDL is distributed in the hope that it will be useful, but WITHOUT 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
-- along with GHDL; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with System;
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.Table;
with Types; use Types;
with Iir_Values; use Iir_Values;
with Name_Table;
with Files_Map;
with Parse;
with Scanner;
with Tokens;
with Sem_Expr;
with Sem_Scopes;
with Std_Names;
with Libraries;
with Std_Package;
with Annotations; use Annotations;
with Iirs_Utils; use Iirs_Utils;
with Errorout; use Errorout;
with Disp_Vhdl;
with Execution; use Execution;
with Simulation; use Simulation;
with Iirs_Walk; use Iirs_Walk;
with Areapools; use Areapools;
with Grt.Disp;
with Grt.Readline;
with Grt.Errors;
with Grt.Disp_Signals;
package body Debugger is
-- This exception can be raised by a debugger command to directly return
-- to the prompt.
Command_Error : exception;
-- For the list command: current file and current line.
List_Current_File : Source_File_Entry := No_Source_File_Entry;
List_Current_Line : Natural := 0;
List_Current_Line_Pos : Source_Ptr := 0;
-- Set List_Current_* from a location. To be called after program break
-- to indicate current location.
procedure Set_List_Current (Loc : Location_Type)
is
Offset : Natural;
begin
Files_Map.Location_To_Coord
(Loc, List_Current_File, List_Current_Line_Pos,
List_Current_Line, Offset);
end Set_List_Current;
Dbg_Top_Frame : Block_Instance_Acc;
Dbg_Cur_Frame : Block_Instance_Acc;
procedure Set_Cur_Frame (Frame : Block_Instance_Acc) is
begin
Dbg_Cur_Frame := Frame;
end Set_Cur_Frame;
procedure Set_Top_Frame (Frame : Block_Instance_Acc) is
begin
Dbg_Top_Frame := Frame;
Set_Cur_Frame (Frame);
end Set_Top_Frame;
type Breakpoint_Entry is record
Stmt : Iir;
end record;
package Breakpoints is new GNAT.Table
(Table_Index_Type => Natural,
Table_Component_Type => Breakpoint_Entry,
Table_Low_Bound => 1,
Table_Initial => 16,
Table_Increment => 100);
-- Current execution state, or reason to stop execution (set by the
-- last debugger command).
type Exec_State_Type is
(-- Execution should continue until a breakpoint is reached or assertion
-- failure.
Exec_Run,
-- Execution will stop at the next statement.
Exec_Single_Step,
-- Execution will stop at the next statement in the same frame.
Exec_Next);
Exec_State : Exec_State_Type := Exec_Run;
Exec_Instance : Block_Instance_Acc;
-- Disp a message during execution.
procedure Error_Msg_Exec (Msg: String; Loc: in Iir) is
begin
Disp_Iir_Location (Loc);
Put (Standard_Error, ' ');
Put_Line (Standard_Error, Msg);
Grt.Errors.Fatal_Error;
end Error_Msg_Exec;
procedure Warning_Msg_Exec (Msg: String; Loc: Iir) is
begin
Disp_Iir_Location (Loc);
Put (Standard_Error, "warning: ");
Put_Line (Standard_Error, Msg);
end Warning_Msg_Exec;
-- Disp a message for a constraint error.
procedure Error_Msg_Constraint (Expr: in Iir) is
begin
if Expr /= Null_Iir then
Disp_Iir_Location (Expr);
end if;
Put (Standard_Error, "constraint violation");
if Expr /= Null_Iir then
case Get_Kind (Expr) is
when Iir_Kind_Addition_Operator =>
Put_Line (Standard_Error, " in the ""+"" operation");
when Iir_Kind_Substraction_Operator =>
Put_Line (Standard_Error, " in the ""-"" operation");
when Iir_Kind_Integer_Literal =>
Put_Line (Standard_Error, ", literal out of range");
when Iir_Kind_Interface_Signal_Declaration
| Iir_Kind_Signal_Declaration =>
Put_Line (Standard_Error, " for " & Disp_Node (Expr));
when others =>
New_Line (Standard_Error);
end case;
end if;
Grt.Errors.Fatal_Error;
end Error_Msg_Constraint;
function Get_Instance_Local_Name (Instance : Block_Instance_Acc;
Short : Boolean := False)
return String
is
Name : constant Iir := Instance.Label;
begin
if Name = Null_Iir then
return "<anon>";
end if;
case Get_Kind (Name) is
when Iir_Kind_Block_Statement
| Iir_Kind_If_Generate_Statement
| Iir_Kind_For_Generate_Statement
| Iir_Kind_Component_Instantiation_Statement
| Iir_Kind_Procedure_Declaration
| Iir_Kinds_Process_Statement =>
return Image_Identifier (Name);
when Iir_Kind_Iterator_Declaration =>
return Image_Identifier (Get_Parent (Name)) & '('
& Execute_Image_Attribute
(Instance.Objects (Get_Info (Name).Slot), Get_Type (Name))
& ')';
when Iir_Kind_Architecture_Body =>
if Short then
return Image_Identifier (Get_Entity (Name));
else
return Image_Identifier (Get_Entity (Name))
& '(' & Image_Identifier (Name) & ')';
end if;
when others =>
Error_Kind ("disp_instance_local_name", Name);
end case;
end Get_Instance_Local_Name;
-- Disp the name of an instance, without newline.
procedure Disp_Instance_Name (Instance: Block_Instance_Acc;
Short : Boolean := False) is
begin
if Instance.Parent /= null then
Disp_Instance_Name (Instance.Parent);
Put ('.');
end if;
Put (Get_Instance_Local_Name (Instance, Short));
end Disp_Instance_Name;
function Get_Instance_Name (Instance: Block_Instance_Acc) return String
is
function Parent_Name return String is
begin
if Instance.Parent /= null then
return Get_Instance_Name (Instance.Parent) & '.';
else
return "";
end if;
end Parent_Name;
begin
return Parent_Name & Get_Instance_Local_Name (Instance);
end Get_Instance_Name;
procedure Disp_Instances_Tree_Name (Inst : Block_Instance_Acc) is
begin
if Inst = null then
Put ("*null*");
New_Line;
return;
end if;
Put (Get_Instance_Local_Name (Inst));
Put (" ");
case Get_Kind (Inst.Label) is
when Iir_Kind_Block_Statement =>
Put ("[block]");
when Iir_Kind_If_Generate_Statement
| Iir_Kind_For_Generate_Statement =>
Put ("[generate]");
when Iir_Kind_Iterator_Declaration =>
Put ("[iterator]");
when Iir_Kind_Component_Instantiation_Statement =>
Put ("[component]");
when Iir_Kinds_Process_Statement =>
Put ("[process]");
when Iir_Kind_Architecture_Body =>
Put ("[entity]");
when others =>
Error_Kind ("disp_instances_tree1", Inst.Label);
end case;
New_Line;
end Disp_Instances_Tree_Name;
procedure Disp_Instances_Tree1 (Inst : Block_Instance_Acc; Pfx : String)
is
Child : Block_Instance_Acc;
begin
Child := Inst.Children;
if Child = null then
return;
end if;
loop
if Child.Brother /= null then
Put (Pfx & "+-");
Disp_Instances_Tree_Name (Child);
Disp_Instances_Tree1 (Child, Pfx & "| ");
Child := Child.Brother;
else
Put (Pfx & "`-");
Disp_Instances_Tree_Name (Child);
Disp_Instances_Tree1 (Child, Pfx & " ");
exit;
end if;
end loop;
end Disp_Instances_Tree1;
procedure Disp_Instances_Tree is
begin
Disp_Instances_Tree_Name (Top_Instance);
Disp_Instances_Tree1 (Top_Instance, "");
end Disp_Instances_Tree;
-- Disp a block instance, in a human readable way.
-- Used to debug.
procedure Disp_Block_Instance (Instance: Block_Instance_Acc) is
begin
Put_Line ("scope:" & Image (Instance.Block_Scope));
Put_Line ("Objects:");
for I in Instance.Objects'Range loop
Put (Object_Slot_Type'Image (I) & ": ");
Disp_Value_Tab (Instance.Objects (I), 3);
New_Line;
end loop;
end Disp_Block_Instance;
procedure Disp_Signal (Value : Iir_Value_Literal_Acc; A_Type : Iir);
procedure Disp_Signal_Array (Value : Iir_Value_Literal_Acc;
A_Type : Iir;
Dim : Natural)
is
begin
if Dim = Get_Nbr_Elements (Get_Index_Subtype_List (A_Type)) then
Put ("(");
for I in Value.Val_Array.V'Range loop
if I /= 1 then
Put (", ");
end if;
Disp_Signal (Value.Val_Array.V (I), Get_Element_Subtype (A_Type));
end loop;
Put (")");
else
Put ("(");
Disp_Signal_Array (Value, A_Type, Dim + 1);
Put (")");
end if;
end Disp_Signal_Array;
procedure Disp_Signal_Record (Value : Iir_Value_Literal_Acc; A_Type : Iir)
is
El : Iir_Element_Declaration;
List : Iir_List;
begin
List := Get_Elements_Declaration_List (Get_Base_Type (A_Type));
Put ("(");
for I in Value.Val_Record.V'Range loop
El := Get_Nth_Element (List, Natural (I - 1));
if I /= 1 then
Put (", ");
end if;
Put (Name_Table.Image (Get_Identifier (El)));
Put (" => ");
Disp_Signal (Value.Val_Record.V (I), Get_Type (El));
end loop;
Put (")");
end Disp_Signal_Record;
procedure Disp_Signal (Value : Iir_Value_Literal_Acc; A_Type : Iir) is
begin
if Value = null then
Put ("!NULL!");
return;
end if;
case Value.Kind is
when Iir_Value_I64
| Iir_Value_F64
| Iir_Value_E32
| Iir_Value_B1
| Iir_Value_Access =>
Disp_Iir_Value (Value, A_Type);
when Iir_Value_Array =>
Disp_Signal_Array (Value, A_Type, 1);
when Iir_Value_Record =>
Disp_Signal_Record (Value, A_Type);
when Iir_Value_Range =>
-- FIXME.
raise Internal_Error;
when Iir_Value_Signal =>
Grt.Disp_Signals.Disp_A_Signal (Value.Sig);
when Iir_Value_File
| Iir_Value_Protected
| Iir_Value_Quantity
| Iir_Value_Terminal =>
raise Internal_Error;
end case;
end Disp_Signal;
procedure Disp_Instance_Signal (Instance: Block_Instance_Acc; Decl : Iir)
is
Info : constant Sim_Info_Acc := Get_Info (Decl);
begin
Put (" ");
Put (Name_Table.Image (Get_Identifier (Decl)));
Put (" = ");
Disp_Signal (Instance.Objects (Info.Slot), Get_Type (Decl));
end Disp_Instance_Signal;
procedure Disp_Instance_Signals_Of_Chain (Instance: Block_Instance_Acc;
Chain : Iir)
is
El : Iir;
begin
El := Chain;
while El /= Null_Iir loop
case Get_Kind (El) is
when Iir_Kind_Signal_Declaration
| Iir_Kind_Interface_Signal_Declaration =>
Disp_Instance_Signal (Instance, El);
when others =>
null;
end case;
El := Get_Chain (El);
end loop;
end Disp_Instance_Signals_Of_Chain;
procedure Disp_Instance_Signals (Instance: Block_Instance_Acc)
is
Blk : constant Iir := Instance.Label;
Child: Block_Instance_Acc;
begin
case Get_Kind (Blk) is
when Iir_Kind_Architecture_Body =>
declare
Ent : constant Iir := Get_Entity (Blk);
begin
Disp_Instance_Name (Instance);
Put_Line (" [architecture]:");
Disp_Instance_Signals_Of_Chain
(Instance, Get_Port_Chain (Ent));
Disp_Instance_Signals_Of_Chain
(Instance, Get_Declaration_Chain (Ent));
end;
when Iir_Kind_Block_Statement =>
Disp_Instance_Name (Instance);
Put_Line (" [block]:");
-- FIXME: ports.
Disp_Instance_Signals_Of_Chain
(Instance, Get_Declaration_Chain (Blk));
when Iir_Kind_If_Generate_Statement
| Iir_Kind_For_Generate_Statement =>
Disp_Instance_Name (Instance);
Put_Line (" [generate]:");
when Iir_Kind_Generate_Statement_Body =>
Disp_Instance_Signals_Of_Chain
(Instance, Get_Declaration_Chain (Blk));
when Iir_Kind_Component_Instantiation_Statement =>
null;
when Iir_Kinds_Process_Statement =>
null;
when Iir_Kind_Iterator_Declaration =>
null;
when others =>
Error_Kind ("disp_instance_signals", Instance.Label);
end case;
Child := Instance.Children;
while Child /= null loop
Disp_Instance_Signals (Child);
Child := Child.Brother;
end loop;
end Disp_Instance_Signals;
-- Disp all signals name and values.
procedure Disp_Signals_Value is
begin
if Disp_Time_Before_Values then
Grt.Disp.Disp_Now;
end if;
Disp_Instance_Signals (Top_Instance);
end Disp_Signals_Value;
procedure Disp_Objects_Value is
begin
null;
-- -- Disp the results.
-- for I in 0 .. Variables.Last loop
-- Put (Get_String (Variables.Table (I).Name.all));
-- Put (" = ");
-- Put (Get_Str_Value
-- (Get_Literal (variables.Table (I).Value.all),
-- Get_Type (variables.Table (I).Value.all)));
-- if I = variables.Last then
-- Put_Line (";");
-- else
-- Put (", ");
-- end if;
-- end loop;
end Disp_Objects_Value;
procedure Disp_Label (Process : Iir)
is
Label : Name_Id;
begin
Label := Get_Label (Process);
if Label = Null_Identifier then
Put ("<unlabeled>");
else
Put (Name_Table.Image (Label));
end if;
end Disp_Label;
procedure Disp_Declaration_Objects
(Instance : Block_Instance_Acc; Decl_Chain : Iir)
is
El : Iir;
begin
El := Decl_Chain;
while El /= Null_Iir loop
case Get_Kind (El) is
when Iir_Kind_Constant_Declaration
| Iir_Kind_Variable_Declaration
| Iir_Kind_Interface_Variable_Declaration
| Iir_Kind_Interface_Constant_Declaration
| Iir_Kind_Interface_File_Declaration
| Iir_Kind_Object_Alias_Declaration =>
Put (Disp_Node (El));
Put (" = ");
Disp_Value_Tab (Instance.Objects (Get_Info (El).Slot), 3);
when Iir_Kind_Interface_Signal_Declaration =>
declare
Sig : Iir_Value_Literal_Acc;
begin
Sig := Instance.Objects (Get_Info (El).Slot);
Put (Disp_Node (El));
Put (" = ");
Disp_Signal (Sig, Get_Type (El));
New_Line;
end;
when Iir_Kind_Type_Declaration
| Iir_Kind_Anonymous_Type_Declaration
| Iir_Kind_Subtype_Declaration =>
-- FIXME: disp ranges
null;
when others =>
Error_Kind ("disp_declaration_objects", El);
end case;
El := Get_Chain (El);
end loop;
end Disp_Declaration_Objects;
procedure Disp_Objects (Instance : Block_Instance_Acc)
is
Decl : constant Iir := Instance.Label;
begin
Disp_Instance_Name (Instance);
New_Line;
case Get_Kind (Decl) is
when Iir_Kind_Procedure_Declaration
| Iir_Kind_Function_Declaration =>
Disp_Declaration_Objects
(Instance, Get_Interface_Declaration_Chain (Decl));
Disp_Declaration_Objects
(Instance,
Get_Declaration_Chain (Get_Subprogram_Body (Decl)));
when Iir_Kind_Architecture_Body =>
declare
Entity : constant Iir_Entity_Declaration := Get_Entity (Decl);
begin
Disp_Declaration_Objects
(Instance, Get_Generic_Chain (Entity));
Disp_Declaration_Objects
(Instance, Get_Port_Chain (Entity));
Disp_Declaration_Objects
(Instance, Get_Declaration_Chain (Entity));
Disp_Declaration_Objects
(Instance, Get_Declaration_Chain (Decl));
-- FIXME: processes.
end;
when Iir_Kind_Component_Instantiation_Statement =>
null;
when others =>
Error_Kind ("disp_objects", Decl);
end case;
end Disp_Objects;
pragma Unreferenced (Disp_Objects);
procedure Disp_Process_Stats
is
Proc : Iir;
Stmt : Iir;
Nbr_User_Sensitized_Processes : Natural := 0;
Nbr_User_If_Sensitized_Processes : Natural := 0;
Nbr_Conc_Sensitized_Processes : Natural := 0;
Nbr_User_Non_Sensitized_Processes : Natural := 0;
Nbr_Conc_Non_Sensitized_Processes : Natural := 0;
begin
for I in Processes_Table.First .. Processes_Table.Last loop
Proc := Processes_Table.Table (I).Label;
case Get_Kind (Proc) is
when Iir_Kind_Sensitized_Process_Statement =>
if Get_Process_Origin (Proc) = Null_Iir then
Stmt := Get_Sequential_Statement_Chain (Proc);
if Stmt /= Null_Iir
and then Get_Kind (Stmt) = Iir_Kind_If_Statement
and then Get_Chain (Stmt) = Null_Iir
then
Nbr_User_If_Sensitized_Processes :=
Nbr_User_If_Sensitized_Processes + 1;
else
Nbr_User_Sensitized_Processes :=
Nbr_User_Sensitized_Processes + 1;
end if;
else
Nbr_Conc_Sensitized_Processes :=
Nbr_Conc_Sensitized_Processes + 1;
end if;
when Iir_Kind_Process_Statement =>
if Get_Process_Origin (Proc) = Null_Iir then
Nbr_User_Non_Sensitized_Processes :=
Nbr_User_Non_Sensitized_Processes + 1;
else
Nbr_Conc_Non_Sensitized_Processes :=
Nbr_Conc_Non_Sensitized_Processes + 1;
end if;
when others =>
raise Internal_Error;
end case;
end loop;
Put (Natural'Image (Nbr_User_If_Sensitized_Processes));
Put_Line (" user sensitized processes with only a if stmt");
Put (Natural'Image (Nbr_User_Sensitized_Processes));
Put_Line (" user sensitized processes (others)");
Put (Natural'Image (Nbr_User_Non_Sensitized_Processes));
Put_Line (" user non sensitized processes");
Put (Natural'Image (Nbr_Conc_Sensitized_Processes));
Put_Line (" sensitized concurrent statements");
Put (Natural'Image (Nbr_Conc_Non_Sensitized_Processes));
Put_Line (" non sensitized concurrent statements");
Put (Process_Index_Type'Image (Processes_Table.Last));
Put_Line (" processes (total)");
end Disp_Process_Stats;
procedure Disp_Signals_Stats
is
type Counters_Type is array (Signal_Type_Kind) of Natural;
Counters : Counters_Type := (others => 0);
Nbr_Signal_Elements : Natural := 0;
begin
for I in Signals_Table.First .. Signals_Table.Last loop
declare
Ent : Signal_Entry renames Signals_Table.Table (I);
begin
if Ent.Kind = User_Signal then
Nbr_Signal_Elements := Nbr_Signal_Elements +
Get_Nbr_Of_Scalars (Signals_Table.Table (I).Sig);
end if;
Counters (Ent.Kind) := Counters (Ent.Kind) + 1;
end;
end loop;
Put (Integer'Image (Counters (User_Signal)));
Put_Line (" declared user signals or ports");
Put (Integer'Image (Nbr_Signal_Elements));
Put_Line (" user signals sub-elements");
Put (Integer'Image (Counters (Implicit_Quiet)));
Put_Line (" 'quiet implicit signals");
Put (Integer'Image (Counters (Implicit_Stable)));
Put_Line (" 'stable implicit signals");
Put (Integer'Image (Counters (Implicit_Delayed)));
Put_Line (" 'delayed implicit signals");
Put (Integer'Image (Counters (Implicit_Transaction)));
Put_Line (" 'transaction implicit signals");
Put (Integer'Image (Counters (Guard_Signal)));
Put_Line (" guard signals");
end Disp_Signals_Stats;
procedure Disp_Design_Stats is
begin
Disp_Process_Stats;
New_Line;
Disp_Signals_Stats;
New_Line;
Put (Integer'Image (Connect_Table.Last));
Put_Line (" connections");
end Disp_Design_Stats;
procedure Disp_Design_Non_Sensitized
is
Instance : Block_Instance_Acc;
Proc : Iir;
begin
for I in Processes_Table.First .. Processes_Table.Last loop
Instance := Processes_Table.Table (I);
Proc := Processes_Table.Table (I).Label;
if Get_Kind (Proc) = Iir_Kind_Process_Statement then
Disp_Instance_Name (Instance);
New_Line;
Put_Line (" at " & Disp_Location (Proc));
end if;
end loop;
end Disp_Design_Non_Sensitized;
procedure Disp_Design_Connections is
begin
for I in Connect_Table.First .. Connect_Table.Last loop
declare
Conn : Connect_Entry renames Connect_Table.Table (I);
begin
Disp_Iir_Location (Conn.Assoc);
New_Line;
end;
end loop;
end Disp_Design_Connections;
function Walk_Files (Cb : Walk_Cb) return Walk_Status
is
Lib : Iir_Library_Declaration := Libraries.Get_Libraries_Chain;
File : Iir_Design_File;
begin
while Lib /= Null_Iir loop
File := Get_Design_File_Chain (Lib);
while File /= Null_Iir loop
case Cb.all (File) is
when Walk_Continue =>
null;
when Walk_Up =>
exit;
when Walk_Abort =>
return Walk_Abort;
end case;
File := Get_Chain (File);
end loop;
Lib := Get_Chain (Lib);
end loop;
return Walk_Continue;
end Walk_Files;
Walk_Units_Cb : Walk_Cb;
function Cb_Walk_Units (Design_File : Iir) return Walk_Status
is
Unit : Iir_Design_Unit;
begin
Unit := Get_First_Design_Unit (Design_File);
while Unit /= Null_Iir loop
case Walk_Units_Cb.all (Get_Library_Unit (Unit)) is
when Walk_Continue =>
null;
when Walk_Abort =>
return Walk_Abort;
when Walk_Up =>
exit;
end case;
Unit := Get_Chain (Unit);
end loop;
return Walk_Continue;
end Cb_Walk_Units;
function Walk_Units (Cb : Walk_Cb) return Walk_Status is
begin
Walk_Units_Cb := Cb;
return Walk_Files (Cb_Walk_Units'Access);
end Walk_Units;
Walk_Declarations_Cb : Walk_Cb;
function Cb_Walk_Declarations (Unit : Iir) return Walk_Status
is
function Walk_Decl_Chain (Chain : Iir) return Walk_Status
is
Decl : Iir;
begin
Decl := Chain;
while Decl /= Null_Iir loop
case Walk_Declarations_Cb.all (Decl) is
when Walk_Abort =>
return Walk_Abort;
when Walk_Up =>
return Walk_Continue;
when Walk_Continue =>
null;
end case;
Decl := Get_Chain (Decl);
end loop;
return Walk_Continue;
end Walk_Decl_Chain;
function Walk_Conc_Chain (Chain : Iir) return Walk_Status
is
Stmt : Iir := Chain;
begin
while Stmt /= Null_Iir loop
case Get_Kind (Stmt) is
when Iir_Kind_Process_Statement =>
if Walk_Decl_Chain (Get_Declaration_Chain (Stmt))
= Walk_Abort
then
return Walk_Abort;
end if;
when others =>
Error_Kind ("walk_conc_chain", Stmt);
end case;
Stmt := Get_Chain (Stmt);
end loop;
return Walk_Continue;
end Walk_Conc_Chain;
begin
case Get_Kind (Unit) is
when Iir_Kind_Entity_Declaration =>
if Walk_Decl_Chain (Get_Generic_Chain (Unit)) = Walk_Abort
or else Walk_Decl_Chain (Get_Port_Chain (Unit)) = Walk_Abort
or else (Walk_Decl_Chain
(Get_Declaration_Chain (Unit)) = Walk_Abort)
or else (Walk_Conc_Chain
(Get_Concurrent_Statement_Chain (Unit)) = Walk_Abort)
then
return Walk_Abort;
end if;
when Iir_Kind_Architecture_Body =>
if (Walk_Decl_Chain
(Get_Declaration_Chain (Unit)) = Walk_Abort)
or else (Walk_Conc_Chain
(Get_Concurrent_Statement_Chain (Unit)) = Walk_Abort)
then
return Walk_Abort;
end if;
when Iir_Kind_Package_Declaration
| Iir_Kind_Package_Body =>
if Walk_Decl_Chain (Get_Declaration_Chain (Unit)) = Walk_Abort
then
return Walk_Abort;
end if;
when Iir_Kind_Configuration_Declaration =>
if Walk_Decl_Chain (Get_Declaration_Chain (Unit)) = Walk_Abort
then
return Walk_Abort;
end if;
-- FIXME: block configuration ?
when others =>
Error_Kind ("Cb_Walk_Declarations", Unit);
end case;
return Walk_Continue;
end Cb_Walk_Declarations;
function Walk_Declarations (Cb : Walk_Cb) return Walk_Status is
begin
Walk_Declarations_Cb := Cb;
return Walk_Units (Cb_Walk_Declarations'Access);
end Walk_Declarations;
function Is_Blank (C : Character) return Boolean is
begin
return C = ' ' or else C = ASCII.HT;
end Is_Blank;
function Skip_Blanks (S : String) return Positive
is
P : Positive := S'First;
begin
while P <= S'Last and then Is_Blank (S (P)) loop
P := P + 1;
end loop;
return P;
end Skip_Blanks;
-- Return the position of the last character of the word (the last
-- non-blank character).
function Get_Word (S : String) return Positive
is
P : Positive := S'First;
begin
while P <= S'Last and then not Is_Blank (S (P)) loop
P := P + 1;
end loop;
return P - 1;
end Get_Word;
procedure Disp_A_Frame (Instance: Block_Instance_Acc) is
begin
Put (Disp_Node (Instance.Label));
if Instance.Stmt /= Null_Iir then
Put (" at ");
Put (Get_Location_Str (Get_Location (Instance.Stmt)));
end if;
New_Line;
end Disp_A_Frame;
procedure Disp_Current_Lines
is
use Files_Map;
-- Number of lines to display before and after the current line.
Radius : constant := 5;
Buf : File_Buffer_Acc;
Pos : Source_Ptr;
Line : Natural;
Len : Source_Ptr;
C : Character;
begin
if List_Current_Line > Radius then
Line := List_Current_Line - Radius;
else
Line := 1;
end if;
Pos := Line_To_Position (List_Current_File, Line);
Buf := Get_File_Source (List_Current_File);
while Line < List_Current_Line + Radius loop
-- Compute line length.
Len := 0;
loop
C := Buf (Pos + Len);
exit when C = ASCII.CR or C = ASCII.LF or C = ASCII.NUL;
Len := Len + 1;
end loop;
-- Disp line number.
declare
Str : constant String := Natural'Image (Line);
begin
if Line = List_Current_Line then
Put ('*');
else
Put (' ');
end if;
Put ((Str'Length .. 5 => ' '));
Put (Str (Str'First + 1 .. Str'Last));
Put (' ');
end;
-- Disp line.
Put_Line (String (Buf (Pos .. Pos + Len - 1)));
-- Skip EOL.
exit when C = ASCII.NUL;
Pos := Pos + Len + 1;
if C = ASCII.CR then
if Buf (Pos) = ASCII.LF then
Pos := Pos + 1;
end if;
else
pragma Assert (C = ASCII.LF);
if Buf (Pos) = ASCII.CR then
Pos := Pos + 1;
end if;
end if;
Line := Line + 1;
end loop;
end Disp_Current_Lines;
procedure Disp_Source_Line (Loc : Location_Type)
is
use Files_Map;
File : Source_File_Entry;
Line_Pos : Source_Ptr;
Line : Natural;
Offset : Natural;
Buf : File_Buffer_Acc;
Next_Line_Pos : Source_Ptr;
begin
Location_To_Coord (Loc, File, Line_Pos, Line, Offset);
Buf := Get_File_Source (File);
Next_Line_Pos := Line_To_Position (File, Line + 1);
Put (String (Buf (Line_Pos .. Next_Line_Pos - 1)));
end Disp_Source_Line;
type Menu_Kind is (Menu_Command, Menu_Submenu);
type Menu_Entry (Kind : Menu_Kind);
type Menu_Entry_Acc is access all Menu_Entry;
type Cst_String_Acc is access constant String;
type Menu_Procedure is access procedure (Line : String);
type Menu_Entry (Kind : Menu_Kind) is record
Name : Cst_String_Acc;
Next : Menu_Entry_Acc;
case Kind is
when Menu_Command =>
Proc : Menu_Procedure;
when Menu_Submenu =>
First, Last : Menu_Entry_Acc := null;
end case;
end record;
-- Check there is a current process.
procedure Check_Current_Process is
begin
if Current_Process = null then
Put_Line ("no current process");
raise Command_Error;
end if;
end Check_Current_Process;
-- The status of the debugger. This status can be modified by a command
-- as a side effect to resume or quit the debugger.
type Command_Status_Type is (Status_Default, Status_Quit);
Command_Status : Command_Status_Type;
procedure Help_Proc (Line : String);
procedure Disp_Process_Loc (Proc : Process_State_Type) is
begin
Disp_Instance_Name (Proc.Top_Instance);
Put (" (" & Get_Location_Str (Get_Location (Proc.Proc)) & ")");
New_Line;
end Disp_Process_Loc;
-- Disp the list of processes (and its state)
procedure Ps_Proc (Line : String) is
pragma Unreferenced (Line);
Process : Iir;
begin
if Processes_State = null then
Put_Line ("no processes");
return;
end if;
for I in Processes_State'Range loop
Put (Process_Index_Type'Image (I) & ": ");
Process := Processes_State (I).Proc;
if Process /= Null_Iir then
Disp_Process_Loc (Processes_State (I));
Disp_A_Frame (Processes_State (I).Instance);
else
Put_Line ("not yet elaborated");
end if;
end loop;
end Ps_Proc;
procedure List_Proc (Line : String)
is
pragma Unreferenced (Line);
begin
Disp_Current_Lines;
end List_Proc;
procedure Up_Proc (Line : String)
is
pragma Unreferenced (Line);
begin
Check_Current_Process;
if Dbg_Cur_Frame.Parent = null then
Put_Line ("top of frames reached");
else
Set_Cur_Frame (Dbg_Cur_Frame.Parent);
end if;
end Up_Proc;
procedure Down_Proc (Line : String)
is
pragma Unreferenced (Line);
Inst : Block_Instance_Acc;
begin
Check_Current_Process;
if Dbg_Cur_Frame = Dbg_Top_Frame then
Put_Line ("bottom of frames reached");
else
Inst := Dbg_Top_Frame;
while Inst.Parent /= Dbg_Cur_Frame loop
Inst := Inst.Parent;
end loop;
Set_Cur_Frame (Inst);
end if;
end Down_Proc;
procedure Set_Breakpoint (Stmt : Iir) is
begin
Put_Line
("set breakpoint at: " & Get_Location_Str (Get_Location (Stmt)));
Breakpoints.Append (Breakpoint_Entry'(Stmt => Stmt));
Flag_Need_Debug := True;
end Set_Breakpoint;
procedure Next_Proc (Line : String)
is
pragma Unreferenced (Line);
begin
Exec_State := Exec_Next;
Exec_Instance := Dbg_Top_Frame;
Flag_Need_Debug := True;
Command_Status := Status_Quit;
end Next_Proc;
procedure Step_Proc (Line : String)
is
pragma Unreferenced (Line);
begin
Exec_State := Exec_Single_Step;
Flag_Need_Debug := True;
Command_Status := Status_Quit;
end Step_Proc;
Break_Id : Name_Id;
function Cb_Set_Break (El : Iir) return Walk_Status is
begin
case Get_Kind (El) is
when Iir_Kind_Function_Declaration
| Iir_Kind_Procedure_Declaration =>
if Get_Identifier (El) = Break_Id then
Set_Breakpoint
(Get_Sequential_Statement_Chain (Get_Subprogram_Body (El)));
end if;
when others =>
null;
end case;
return Walk_Continue;
end Cb_Set_Break;
procedure Break_Proc (Line : String)
is
Status : Walk_Status;
P : Natural;
begin
P := Skip_Blanks (Line);
Break_Id := Name_Table.Get_Identifier (Line (P .. Line'Last));
Status := Walk_Declarations (Cb_Set_Break'Access);
pragma Assert (Status = Walk_Continue);
end Break_Proc;
procedure Where_Proc (Line : String) is
pragma Unreferenced (Line);
Frame : Block_Instance_Acc;
begin
Check_Current_Process;
Frame := Dbg_Top_Frame;
while Frame /= null loop
if Frame = Dbg_Cur_Frame then
Put ("* ");
else
Put (" ");
end if;
Disp_A_Frame (Frame);
Frame := Frame.Parent;
end loop;
end Where_Proc;
procedure Info_Tree_Proc (Line : String)
is
pragma Unreferenced (Line);
begin
if Top_Instance = null then
Put_Line ("design not yet fully elaborated");
else
Disp_Instances_Tree;
end if;
end Info_Tree_Proc;
procedure Info_Params_Proc (Line : String)
is
pragma Unreferenced (Line);
Decl : Iir;
Params : Iir;
begin
Check_Current_Process;
Decl := Dbg_Cur_Frame.Label;
if Decl = Null_Iir
or else Get_Kind (Decl) not in Iir_Kinds_Subprogram_Declaration
then
Put_Line ("current frame is not a subprogram");
return;
end if;
Params := Get_Interface_Declaration_Chain (Decl);
Disp_Declaration_Objects (Dbg_Cur_Frame, Params);
end Info_Params_Proc;
procedure Info_Proc_Proc (Line : String) is
pragma Unreferenced (Line);
begin
Check_Current_Process;
Disp_Process_Loc (Current_Process.all);
end Info_Proc_Proc;
function Cb_Disp_Subprograms (El : Iir) return Walk_Status is
begin
case Get_Kind (El) is
when Iir_Kind_Function_Declaration
| Iir_Kind_Procedure_Declaration =>
Put_Line (Name_Table.Image (Get_Identifier (El)));
when others =>
null;
end case;
return Walk_Continue;
end Cb_Disp_Subprograms;
procedure Info_Subprograms_Proc (Line : String) is
pragma Unreferenced (Line);
Status : Walk_Status;
begin
Status := Walk_Declarations (Cb_Disp_Subprograms'Access);
pragma Assert (Status = Walk_Continue);
end Info_Subprograms_Proc;
function Cb_Disp_Units (El : Iir) return Walk_Status is
begin
case Get_Kind (El) is
when Iir_Kind_Package_Declaration =>
Put ("package ");
Put_Line (Name_Table.Image (Get_Identifier (El)));
when Iir_Kind_Entity_Declaration =>
Put ("entity ");
Put_Line (Name_Table.Image (Get_Identifier (El)));
when Iir_Kind_Architecture_Body =>
Put ("architecture ");
Put (Name_Table.Image (Get_Identifier (El)));
Put (" of ");
Put_Line (Name_Table.Image (Get_Identifier (Get_Entity (El))));
when Iir_Kind_Configuration_Declaration =>
Put ("configuration ");
Put_Line (Name_Table.Image (Get_Identifier (El)));
when Iir_Kind_Package_Body =>
null;
when others =>
Error_Kind ("cb_disp_units", El);
end case;
return Walk_Continue;
end Cb_Disp_Units;
procedure Info_Units_Proc (Line : String) is
pragma Unreferenced (Line);
Status : Walk_Status;
begin
Status := Walk_Units (Cb_Disp_Units'Access);
pragma Assert (Status = Walk_Continue);
end Info_Units_Proc;
function Cb_Disp_File (El : Iir) return Walk_Status is
begin
Put_Line (Name_Table.Image (Get_Design_File_Filename (El)));
return Walk_Continue;
end Cb_Disp_File;
procedure Info_Stats_Proc (Line : String) is
P : Natural := Line'First;
E : Natural;
begin
P := Skip_Blanks (Line (P .. Line'Last));
if P > Line'Last then
-- No parameters.
Disp_Design_Stats;
return;
end if;
E := Get_Word (Line (P .. Line'Last));
if Line (P .. E) = "global" then
Disp_Design_Stats;
elsif Line (P .. E) = "non-sensitized" then
Disp_Design_Non_Sensitized;
null;
elsif Line (P .. E) = "connections" then
Disp_Design_Connections;
-- TODO: nbr of conversions
else
Put_Line ("options are: global, non-sensitized, connections");
-- TODO: signals: nbr of scalars, nbr of non-user...
end if;
end Info_Stats_Proc;
procedure Info_Files_Proc (Line : String) is
pragma Unreferenced (Line);
Status : Walk_Status;
begin
Status := Walk_Files (Cb_Disp_File'Access);
pragma Assert (Status = Walk_Continue);
end Info_Files_Proc;
procedure Info_Libraries_Proc (Line : String) is
pragma Unreferenced (Line);
Lib : Iir_Library_Declaration := Libraries.Get_Libraries_Chain;
begin
while Lib /= Null_Iir loop
Put_Line (Name_Table.Image (Get_Identifier (Lib)));
Lib := Get_Chain (Lib);
end loop;
end Info_Libraries_Proc;
procedure Disp_Declared_Signals_Chain
(Chain : Iir; Instance : Block_Instance_Acc)
is
pragma Unreferenced (Instance);
Decl : Iir;
begin
Decl := Chain;
while Decl /= Null_Iir loop
case Get_Kind (Decl) is
when Iir_Kind_Interface_Signal_Declaration
| Iir_Kind_Signal_Declaration =>
Put_Line (" " & Name_Table.Image (Get_Identifier (Decl)));
when others =>
null;
end case;
Decl := Get_Chain (Decl);
end loop;
end Disp_Declared_Signals_Chain;
procedure Disp_Declared_Signals (Decl : Iir; Instance : Block_Instance_Acc)
is
begin
case Get_Kind (Decl) is
when Iir_Kind_Sensitized_Process_Statement
| Iir_Kind_Process_Statement =>
Disp_Declared_Signals (Get_Parent (Decl), Instance);
when Iir_Kind_Architecture_Body =>
Disp_Declared_Signals (Get_Entity (Decl), Instance);
when Iir_Kind_Entity_Declaration =>
null;
when others =>
Error_Kind ("disp_declared_signals", Decl);
end case;
case Get_Kind (Decl) is
when Iir_Kind_Sensitized_Process_Statement
| Iir_Kind_Process_Statement =>
-- No signal declaration in a process (FIXME: implicit signals)
null;
when Iir_Kind_Architecture_Body =>
Put_Line ("Signals of architecture "
& Name_Table.Image (Get_Identifier (Decl)) & ':');
Disp_Declared_Signals_Chain
(Get_Declaration_Chain (Decl), Instance);
when Iir_Kind_Entity_Declaration =>
Put_Line ("Ports of entity "
& Name_Table.Image (Get_Identifier (Decl)) & ':');
Disp_Declared_Signals_Chain
(Get_Port_Chain (Decl), Instance);
when others =>
Error_Kind ("disp_declared_signals (2)", Decl);
end case;
end Disp_Declared_Signals;
procedure Info_Signals_Proc (Line : String) is
pragma Unreferenced (Line);
begin
Check_Current_Process;
Disp_Declared_Signals
(Current_Process.Proc, Current_Process.Top_Instance);
end Info_Signals_Proc;
type Handle_Scope_Type is access procedure (N : Iir);
procedure Foreach_Scopes (N : Iir; Handler : Handle_Scope_Type) is
begin
case Get_Kind (N) is
when Iir_Kind_Process_Statement
| Iir_Kind_Sensitized_Process_Statement =>
Foreach_Scopes (Get_Parent (N), Handler);
Handler.all (N);
when Iir_Kind_Architecture_Body =>
Foreach_Scopes (Get_Entity (N), Handler);
Handler.all (N);
when Iir_Kind_Entity_Declaration =>
-- Top of scopes.
null;
when Iir_Kind_Function_Body
| Iir_Kind_Procedure_Body =>
Foreach_Scopes (Get_Parent (N), Handler);
Handler.all (N);
when Iir_Kind_Package_Body =>
Handler.all (N);
when Iir_Kind_Variable_Assignment_Statement
| Iir_Kind_Signal_Assignment_Statement
| Iir_Kind_Null_Statement
| Iir_Kind_Assertion_Statement
| Iir_Kind_Report_Statement
| Iir_Kind_Wait_Statement
| Iir_Kind_Return_Statement
| Iir_Kind_Next_Statement
| Iir_Kind_Exit_Statement
| Iir_Kind_Procedure_Call_Statement
| Iir_Kind_If_Statement
| Iir_Kind_While_Loop_Statement
| Iir_Kind_Case_Statement =>
Foreach_Scopes (Get_Parent (N), Handler);
when Iir_Kind_For_Loop_Statement
| Iir_Kind_Block_Statement
| Iir_Kind_If_Generate_Statement
| Iir_Kind_For_Generate_Statement
| Iir_Kind_Generate_Statement_Body =>
Foreach_Scopes (Get_Parent (N), Handler);
Handler.all (N);
when others =>
Error_Kind ("foreach_scopes", N);
end case;
end Foreach_Scopes;
procedure Add_Decls_For (N : Iir)
is
use Sem_Scopes;
begin
case Get_Kind (N) is
when Iir_Kind_Entity_Declaration =>
declare
Unit : constant Iir := Get_Design_Unit (N);
begin
Add_Context_Clauses (Unit);
-- Add_Name (Unit, Get_Identifier (N), False);
Add_Entity_Declarations (N);
end;
when Iir_Kind_Architecture_Body =>
Open_Declarative_Region;
Add_Context_Clauses (Get_Design_Unit (N));
Add_Declarations (Get_Declaration_Chain (N), False);
Add_Declarations_Of_Concurrent_Statement (N);
when Iir_Kind_Package_Body =>
declare
Package_Decl : constant Iir := Get_Package (N);
Package_Unit : constant Iir := Get_Design_Unit (Package_Decl);
begin
Add_Name (Package_Unit);
Add_Context_Clauses (Package_Unit);
Open_Declarative_Region;
Add_Declarations (Get_Declaration_Chain (Package_Decl), False);
Add_Declarations (Get_Declaration_Chain (N), False);
end;
when Iir_Kind_Procedure_Body
| Iir_Kind_Function_Body =>
declare
Spec : constant Iir := Get_Subprogram_Specification (N);
begin
Open_Declarative_Region;
Add_Declarations
(Get_Interface_Declaration_Chain (Spec), False);
Add_Declarations
(Get_Declaration_Chain (N), False);
end;
when Iir_Kind_Process_Statement
| Iir_Kind_Sensitized_Process_Statement =>
Open_Declarative_Region;
Add_Declarations (Get_Declaration_Chain (N), False);
when Iir_Kind_For_Loop_Statement
| Iir_Kind_For_Generate_Statement =>
Open_Declarative_Region;
Add_Name (Get_Parameter_Specification (N));
when Iir_Kind_Block_Statement =>
Open_Declarative_Region;
Add_Declarations (Get_Declaration_Chain (N), False);
Add_Declarations_Of_Concurrent_Statement (N);
when Iir_Kind_Generate_Statement_Body =>
Open_Declarative_Region;
Add_Declarations (Get_Declaration_Chain (N), False);
Add_Declarations_Of_Concurrent_Statement (N);
when others =>
Error_Kind ("enter_scope(2)", N);
end case;
end Add_Decls_For;
procedure Enter_Scope (Node : Iir)
is
use Sem_Scopes;
begin
Push_Interpretations;
Open_Declarative_Region;
-- Add STD
Add_Name (Libraries.Std_Library, Std_Names.Name_Std, False);
Use_All_Names (Std_Package.Standard_Package);
Foreach_Scopes (Node, Add_Decls_For'Access);
end Enter_Scope;
procedure Del_Decls_For (N : Iir)
is
use Sem_Scopes;
begin
case Get_Kind (N) is
when Iir_Kind_Entity_Declaration =>
null;
when Iir_Kind_Architecture_Body =>
Close_Declarative_Region;
when Iir_Kind_Process_Statement
| Iir_Kind_Sensitized_Process_Statement
| Iir_Kind_Package_Body
| Iir_Kind_Procedure_Body
| Iir_Kind_Function_Body
| Iir_Kind_For_Loop_Statement
| Iir_Kind_Block_Statement
| Iir_Kind_If_Generate_Statement
| Iir_Kind_For_Generate_Statement
| Iir_Kind_Generate_Statement_Body =>
Close_Declarative_Region;
when others =>
Error_Kind ("Decl_Decls_For", N);
end case;
end Del_Decls_For;
procedure Leave_Scope (Node : Iir)
is
use Sem_Scopes;
begin
Foreach_Scopes (Node, Del_Decls_For'Access);
Close_Declarative_Region;
Pop_Interpretations;
end Leave_Scope;
Buffer_Index : Natural := 1;
procedure Print_Proc (Line : String)
is
use Tokens;
Index_Str : String := Natural'Image (Buffer_Index);
File : Source_File_Entry;
Expr : Iir;
Res : Iir_Value_Literal_Acc;
P : Natural;
Opt_Value : Boolean := False;
Marker : Mark_Type;
begin
-- Decode options: /v
P := Line'First;
loop
P := Skip_Blanks (Line (P .. Line'Last));
if P + 2 < Line'Last and then Line (P .. P + 1) = "/v" then
Opt_Value := True;
P := P + 2;
else
exit;
end if;
end loop;
Buffer_Index := Buffer_Index + 1;
Index_Str (Index_Str'First) := '*';
File := Files_Map.Create_Source_File_From_String
(Name_Table.Get_Identifier ("*debug" & Index_Str & '*'),
Line (P .. Line'Last));
Scanner.Set_File (File);
Scanner.Scan;
Expr := Parse.Parse_Expression;
if Scanner.Current_Token /= Tok_Eof then
Put_Line ("garbage at end of expression ignored");
end if;
Scanner.Close_File;
if Nbr_Errors /= 0 then
Put_Line ("error while parsing expression, evaluation aborted");
Nbr_Errors := 0;
return;
end if;
Enter_Scope (Dbg_Cur_Frame.Stmt);
Expr := Sem_Expr.Sem_Expression_Universal (Expr);
Leave_Scope (Dbg_Cur_Frame.Stmt);
if Expr = Null_Iir
or else Nbr_Errors /= 0
then
Put_Line ("error while analyzing expression, evaluation aborted");
Nbr_Errors := 0;
return;
end if;
Disp_Vhdl.Disp_Expression (Expr);
New_Line;
Annotate_Expand_Table;
Mark (Marker, Expr_Pool);
Res := Execute_Expression (Dbg_Cur_Frame, Expr);
if Opt_Value then
Disp_Value (Res);
else
Disp_Iir_Value (Res, Get_Type (Expr));
end if;
New_Line;
-- Free value
Release (Marker, Expr_Pool);
end Print_Proc;
procedure Quit_Proc (Line : String) is
pragma Unreferenced (Line);
begin
Command_Status := Status_Quit;
raise Debugger_Quit;
end Quit_Proc;
procedure Cont_Proc (Line : String) is
pragma Unreferenced (Line);
begin
Command_Status := Status_Quit;
-- Set Flag_Need_Debug only if there is at least one enabled breakpoint.
Flag_Need_Debug := False;
for I in Breakpoints.First .. Breakpoints.Last loop
Flag_Need_Debug := True;
exit;
end loop;
end Cont_Proc;
Menu_Info_Stats : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("stats"),
Next => null,
Proc => Info_Stats_Proc'Access);
Menu_Info_Tree : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("tree"),
Next => Menu_Info_Stats'Access,
Proc => Info_Tree_Proc'Access);
Menu_Info_Params : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("param*eters"),
Next => Menu_Info_Tree'Access,
Proc => Info_Params_Proc'Access);
Menu_Info_Subprograms : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("subp*rograms"),
Next => Menu_Info_Params'Access,
Proc => Info_Subprograms_Proc'Access);
Menu_Info_Units : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("units"),
Next => Menu_Info_Subprograms'Access,
Proc => Info_Units_Proc'Access);
Menu_Info_Files : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("files"),
Next => Menu_Info_Units'Access,
Proc => Info_Files_Proc'Access);
Menu_Info_Libraries : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("lib*raries"),
Next => Menu_Info_Files'Access,
Proc => Info_Libraries_Proc'Access);
Menu_Info_Signals : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("sig*nals"),
Next => Menu_Info_Libraries'Access,
Proc => Info_Signals_Proc'Access);
Menu_Info_Proc : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("proc*esses"),
Next => Menu_Info_Signals'Access,
Proc => Info_Proc_Proc'Access);
Menu_List : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("l*list"),
Next => null,
Proc => List_Proc'Access);
Menu_Down : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("down"),
Next => Menu_List'Access,
Proc => Down_Proc'Access);
Menu_Up : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("up"),
Next => Menu_Down'Access,
Proc => Up_Proc'Access);
Menu_Next : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("n*ext"),
Next => Menu_Up'Access,
Proc => Next_Proc'Access);
Menu_Step : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("s*tep"),
Next => Menu_Next'Access,
Proc => Step_Proc'Access);
Menu_Break : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("b*reak"),
Next => Menu_Step'Access,
Proc => Break_Proc'Access);
Menu_Where : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("where"),
Next => Menu_Break'Access,
Proc => Where_Proc'Access);
Menu_Ps : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("ps"),
Next => Menu_Where'Access,
Proc => Ps_Proc'Access);
Menu_Info : aliased Menu_Entry :=
(Kind => Menu_Submenu,
Name => new String'("i*nfo"),
Next => Menu_Ps'Access,
First | Last => Menu_Info_Proc'Access);
Menu_Print : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("pr*int"),
Next => Menu_Info'Access,
Proc => Print_Proc'Access);
Menu_Cont : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("c*ont"),
Next => Menu_Print'Access,
Proc => Cont_Proc'Access);
Menu_Quit : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("q*uit"),
Next => Menu_Cont'Access,
Proc => Quit_Proc'Access);
Menu_Help1 : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("help"),
Next => Menu_Quit'Access,
Proc => Help_Proc'Access);
Menu_Help2 : aliased Menu_Entry :=
(Kind => Menu_Command,
Name => new String'("?"),
Next => Menu_Help1'Access,
Proc => Help_Proc'Access);
Menu_Top : aliased Menu_Entry :=
(Kind => Menu_Submenu,
Name => null,
Next => null,
First | Last => Menu_Help2'Access);
function Find_Menu (Menu : Menu_Entry_Acc; Cmd : String)
return Menu_Entry_Acc
is
function Is_Cmd (Cmd_Name : String; Str : String) return Boolean
is
-- Number of characters that were compared.
P : Natural;
begin
P := 0;
-- Prefix (before the '*').
loop
if P = Cmd_Name'Length then
-- Full match.
return P = Str'Length;
end if;
exit when Cmd_Name (Cmd_Name'First + P) = '*';
if P = Str'Length then
-- Command is too short
return False;
end if;
if Cmd_Name (Cmd_Name'First + P) /= Str (Str'First + P) then
return False;
end if;
P := P + 1;
end loop;
-- Suffix (after the '*')
loop
if P = Str'Length then
return True;
end if;
if P + 1 = Cmd_Name'Length then
-- String is too long
return False;
end if;
if Cmd_Name (Cmd_Name'First + P + 1) /= Str (Str'First + P) then
return False;
end if;
P := P + 1;
end loop;
end Is_Cmd;
Ent : Menu_Entry_Acc;
begin
Ent := Menu.First;
while Ent /= null loop
if Is_Cmd (Ent.Name.all, Cmd) then
return Ent;
end if;
Ent := Ent.Next;
end loop;
return null;
end Find_Menu;
procedure Parse_Command (Line : String;
P : in out Natural;
Menu : out Menu_Entry_Acc)
is
E : Natural;
begin
P := Skip_Blanks (Line (P .. Line'Last));
if P > Line'Last then
return;
end if;
E := Get_Word (Line (P .. Line'Last));
Menu := Find_Menu (Menu, Line (P .. E));
if Menu = null then
Put_Line ("command '" & Line (P .. E) & "' not found");
end if;
P := E + 1;
end Parse_Command;
procedure Help_Proc (Line : String) is
P : Natural;
Root : Menu_Entry_Acc := Menu_Top'access;
begin
Put_Line ("This is the help command");
P := Line'First;
while P < Line'Last loop
Parse_Command (Line, P, Root);
if Root = null then
return;
elsif Root.Kind /= Menu_Submenu then
Put_Line ("Menu entry " & Root.Name.all & " is not a submenu");
return;
end if;
end loop;
Root := Root.First;
while Root /= null loop
Put (Root.Name.all);
if Root.Kind = Menu_Submenu then
Put (" (menu)");
end if;
New_Line;
Root := Root.Next;
end loop;
end Help_Proc;
function Breakpoint_Hit return Natural
is
Stmt : constant Iir := Current_Process.Instance.Stmt;
begin
for I in Breakpoints.First .. Breakpoints.Last loop
if Stmt = Breakpoints.Table (I).Stmt then
return I;
end if;
end loop;
return 0;
end Breakpoint_Hit;
Prompt_Debug : constant String := "debug> " & ASCII.NUL;
Prompt_Crash : constant String := "crash> " & ASCII.NUL;
Prompt_Init : constant String := "init> " & ASCII.NUL;
Prompt_Elab : constant String := "elab> " & ASCII.NUL;
procedure Debug (Reason: Debug_Reason) is
use Grt.Readline;
Raw_Line : Char_Ptr;
Prompt : System.Address;
begin
-- Unless interractive, do not use the debugger.
if Reason /= Reason_Internal_Debug then
if not Flag_Interractive then
return;
end if;
end if;
Prompt := Prompt_Debug'Address;
case Reason is
when Reason_Start =>
Set_Top_Frame (null);
Prompt := Prompt_Init'Address;
when Reason_Elab =>
Set_Top_Frame (null);
Prompt := Prompt_Elab'Address;
when Reason_Internal_Debug =>
if Current_Process = null then
Set_Top_Frame (null);
else
Set_Top_Frame (Current_Process.Instance);
end if;
when Reason_Break =>
case Exec_State is
when Exec_Run =>
if Breakpoint_Hit /= 0 then
Put_Line ("breakpoint hit");
else
return;
end if;
when Exec_Single_Step =>
-- Default state.
Exec_State := Exec_Run;
when Exec_Next =>
if Current_Process.Instance /= Exec_Instance then
return;
end if;
-- Default state.
Exec_State := Exec_Run;
end case;
Set_Top_Frame (Current_Process.Instance);
declare
Stmt : constant Iir := Dbg_Cur_Frame.Stmt;
begin
Put ("stopped at: ");
Disp_Iir_Location (Stmt);
New_Line;
Disp_Source_Line (Get_Location (Stmt));
end;
when Reason_Assert =>
Set_Top_Frame (Current_Process.Instance);
Prompt := Prompt_Crash'Address;
Put_Line ("assertion failure, enterring in debugger");
when Reason_Error =>
Set_Top_Frame (Current_Process.Instance);
Prompt := Prompt_Crash'Address;
Put_Line ("error occurred, enterring in debugger");
end case;
if Dbg_Cur_Frame /= null then
Set_List_Current (Get_Location (Dbg_Cur_Frame.Stmt));
end if;
Command_Status := Status_Default;
loop
loop
Raw_Line := Readline (Prompt);
-- Skip empty lines
exit when Raw_Line /= null and then Raw_Line (1) /= ASCII.NUL;
end loop;
declare
Line_Last : constant Natural := Strlen (Raw_Line);
Line : String renames Raw_Line (1 .. Line_Last);
P, E : Positive;
Cmd : Menu_Entry_Acc := Menu_Top'Access;
begin
-- Find command
P := 1;
loop
E := P;
Parse_Command (Line, E, Cmd);
exit when Cmd = null;
case Cmd.Kind is
when Menu_Submenu =>
if E > Line_Last then
Put_Line ("missing command for submenu "
& Line (P .. E - 1));
Cmd := null;
exit;
end if;
P := E;
when Menu_Command =>
exit;
end case;
end loop;
if Cmd /= null then
Cmd.Proc.all (Line (E .. Line_Last));
case Command_Status is
when Status_Default =>
null;
when Status_Quit =>
exit;
end case;
end if;
exception
when Command_Error =>
null;
end;
end loop;
-- Put ("resuming");
end Debug;
procedure Debug_Error is
begin
Debug (Reason_Error);
end Debug_Error;
end Debugger;