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-- Debugging during synthesis.
-- Copyright (C) 2019 Tristan Gingold
--
-- This file is part of GHDL.
--
-- This program 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 of the License, or
-- (at your option) any later version.
--
-- This program 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 this program. If not, see <gnu.org/licenses>.
with Types; use Types;
with Vhdl.Nodes; use Vhdl.Nodes;
with Elab.Vhdl_Context; use Elab.Vhdl_Context;
package Elab.Debugger is
-- True to start debugger on error.
Flag_Debug_Enable : Boolean := False;
-- If true, debugging is enabled:
-- * call Debug_Break() before executing the next sequential statement
-- * call Debug_Leave when a frame is destroyed.
Flag_Need_Debug : Boolean := False;
procedure Debug_Init (Top : Node);
-- Debug after elaboration. TOP is the top-level unit.
procedure Debug_Elab (Top : Synth_Instance_Acc);
procedure Debug_Break (Inst : Synth_Instance_Acc; Stmt : Node);
procedure Debug_Leave (Inst : Synth_Instance_Acc);
-- Debug on a time breakpoint.
procedure Debug_Time (Top : Synth_Instance_Acc);
-- To be called in case of execution error, like:
-- * index out of bounds.
-- * assertion failuere
procedure Debug_Error (Inst : Synth_Instance_Acc; Expr : Node);
-- Hook called in case of fatal error.
type Error_Hook_Type is access procedure;
pragma Convention (C, Error_Hook_Type);
Error_Hook : Error_Hook_Type;
-- Get the current location.
procedure Get_Debug_Loc (Inst : out Synth_Instance_Acc;
Loc : out Node);
type Menu_Procedure is access procedure (Line : String);
type Cst_String_Acc is access constant String;
-- Append a command to the main menu.
procedure Append_Menu_Command (Name : Cst_String_Acc;
Help : Cst_String_Acc;
Proc : Menu_Procedure);
-- Append a command to the info menu.
procedure Append_Info_Command (Name : Cst_String_Acc;
Help : Cst_String_Acc;
Proc : Menu_Procedure);
-- Prepare resume execution.
procedure Prepare_Continue;
-- Utilities for menu commands.
-- Return the position of the first non-blank character.
function Skip_Blanks (S : String) return Positive;
function Skip_Blanks (S : String; F : Positive) return Positive;
-- Return the position of the last character of the word (the last
-- non-blank character).
function Get_Word (S : String) return Positive;
function Get_Word (S : String; F : Positive) return Positive;
-- Convert STR to number RES, set VALID to true iff the conversion is ok.
procedure To_Num (Str : String; Res : out Uns32; Valid : out Boolean);
end Elab.Debugger;
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