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-- GHDL driver for synthesis
-- Copyright (C) 2016 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 GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with GNAT.OS_Lib; use GNAT.OS_Lib;
with Types; use Types;
with Ghdllocal; use Ghdllocal;
with Ghdlcomp; use Ghdlcomp;
with Ghdlmain; use Ghdlmain;
with Options; use Options;
with Errorout;
with Errorout.Console;
with Version;
with Default_Paths;
with Bug;
with Libraries;
with Flags;
with Vhdl.Nodes; use Vhdl.Nodes;
with Vhdl.Errors;
with Vhdl.Scanner;
with Vhdl.Std_Package;
with Vhdl.Canon;
with Vhdl.Configuration;
with Vhdl.Annotations;
with Vhdl.Utils;
with Netlists.Dump;
with Netlists.Disp_Vhdl;
with Netlists.Errors;
with Synthesis;
with Synth.Disp_Vhdl;
with Synth.Context; use Synth.Context;
with Synth.Flags; use Synth.Flags;
package body Ghdlsynth is
type Out_Format is (Format_Raw, Format_Dump, Format_Vhdl, Format_None);
-- Command --synth
type Command_Synth is new Command_Lib with record
Disp_Inline : Boolean := True;
Oformat : Out_Format := Format_Vhdl;
end record;
function Decode_Command (Cmd : Command_Synth; Name : String)
return Boolean;
function Get_Short_Help (Cmd : Command_Synth) return String;
procedure Decode_Option (Cmd : in out Command_Synth;
Option : String;
Arg : String;
Res : out Option_State);
procedure Perform_Action (Cmd : Command_Synth;
Args : Argument_List);
function Decode_Command (Cmd : Command_Synth; Name : String)
return Boolean
is
pragma Unreferenced (Cmd);
begin
return Name = "--synth";
end Decode_Command;
function Get_Short_Help (Cmd : Command_Synth) return String
is
pragma Unreferenced (Cmd);
begin
return "--synth [FILES... -e] UNIT [ARCH] Synthesis from UNIT";
end Get_Short_Help;
procedure Decode_Option (Cmd : in out Command_Synth;
Option : String;
Arg : String;
Res : out Option_State) is
begin
if Option = "--disp-noinline" then
Cmd.Disp_Inline := False;
Res := Option_Ok;
elsif Option = "--out=raw" then
Cmd.Oformat := Format_Raw;
Res := Option_Ok;
elsif Option = "--out=dump" then
Cmd.Oformat := Format_Dump;
Res := Option_Ok;
elsif Option = "--out=none" then
Cmd.Oformat := Format_None;
Res := Option_Ok;
elsif Option = "--out=vhdl" then
Cmd.Oformat := Format_Vhdl;
Res := Option_Ok;
elsif Option = "-di" then
Flag_Debug_Noinference := True;
Res := Option_Ok;
elsif Option = "-dc" then
Flag_Debug_Nocleanup := True;
Res := Option_Ok;
else
Decode_Option (Command_Lib (Cmd), Option, Arg, Res);
end if;
end Decode_Option;
-- Init, analyze and configure.
-- Return the top configuration.
function Ghdl_Synth_Configure (Args : Argument_List) return Node
is
use Vhdl.Errors;
use Vhdl.Configuration;
use Errorout;
E_Opt : Integer;
Opt_Arg : Natural;
Design_File : Iir;
Config : Iir;
Top : Iir;
Prim_Id : Name_Id;
Sec_Id : Name_Id;
begin
-- If the '-e' switch is present, there is a list of files.
E_Opt := Args'First - 1;
for I in Args'Range loop
if Args (I).all = "-e" then
E_Opt := I;
exit;
end if;
end loop;
Vhdl.Annotations.Flag_Synthesis := True;
Vhdl.Scanner.Flag_Comment_Keyword := True;
Vhdl.Scanner.Flag_Pragma_Comment := True;
Common_Compile_Init (False);
-- Will elaborate.
Flags.Flag_Elaborate := True;
Flags.Flag_Elaborate_With_Outdated := E_Opt >= Args'First;
Flags.Flag_Only_Elab_Warnings := True;
Libraries.Load_Work_Library (E_Opt >= Args'First);
-- Do not canon concurrent statements.
Vhdl.Canon.Canon_Flag_Concurrent_Stmts := False;
-- Analyze files (if any)
for I in Args'First .. E_Opt - 1 loop
Design_File := Ghdlcomp.Compile_Analyze_File2 (Args (I).all);
end loop;
pragma Unreferenced (Design_File);
if Nbr_Errors > 0 then
-- No need to configure if there are missing units.
return Null_Iir;
end if;
-- Elaborate
if E_Opt = Args'Last then
-- No unit.
Top := Vhdl.Configuration.Find_Top_Entity (Libraries.Work_Library);
if Top = Null_Node then
Ghdlmain.Error ("no top unit found");
return Null_Iir;
end if;
Errorout.Report_Msg (Msgid_Note, Option, No_Source_Coord,
"top entity is %i", (1 => +Top));
if Nbr_Errors > 0 then
-- No need to configure if there are missing units.
return Null_Iir;
end if;
Prim_Id := Get_Identifier (Top);
Sec_Id := Null_Identifier;
else
Extract_Elab_Unit ("--synth", Args (E_Opt + 1 .. Args'Last), Opt_Arg,
Prim_Id, Sec_Id);
if Opt_Arg <= Args'Last then
Ghdlmain.Error ("extra options ignored");
return Null_Iir;
end if;
end if;
Config := Vhdl.Configuration.Configure (Prim_Id, Sec_Id);
if Nbr_Errors > 0 then
-- No need to configure if there are missing units.
return Null_Iir;
end if;
Vhdl.Configuration.Add_Verification_Units;
-- Check (and possibly abandon) if entity can be at the top of the
-- hierarchy.
declare
Entity : constant Iir :=
Vhdl.Utils.Get_Entity_From_Configuration (Config);
begin
Vhdl.Configuration.Check_Entity_Declaration_Top (Entity, False);
if Nbr_Errors > 0 then
return Null_Iir;
end if;
end;
-- Annotate all units.
Vhdl.Annotations.Annotate (Vhdl.Std_Package.Std_Standard_Unit);
for I in Design_Units.First .. Design_Units.Last loop
Vhdl.Annotations.Annotate (Design_Units.Table (I));
end loop;
return Config;
end Ghdl_Synth_Configure;
function Ghdl_Synth (Argc : Natural; Argv : C_String_Array_Acc)
return Module
is
Args : Argument_List (1 .. Argc);
Res : Module;
Cmd : Command_Acc;
First_Arg : Natural;
Config : Node;
Inst : Synth_Instance_Acc;
begin
-- Create arguments list.
for I in 0 .. Argc - 1 loop
declare
Arg : constant Ghdl_C_String := Argv (I);
begin
Args (I + 1) := new String'(Arg (1 .. strlen (Arg)));
end;
end loop;
-- Find the command. This is a little bit convoluted...
Decode_Command_Options ("--synth", Cmd, Args, First_Arg);
-- Do the real work!
Config := Ghdl_Synth_Configure (Args (First_Arg .. Args'Last));
if Config = Null_Iir then
return No_Module;
end if;
Synthesis.Synth_Design (Config, Res, Inst);
return Res;
exception
when Option_Error =>
return No_Module;
when E: others =>
-- Avoid possible issues with exceptions...
Bug.Disp_Bug_Box (E);
return No_Module;
end Ghdl_Synth;
procedure Perform_Action (Cmd : Command_Synth;
Args : Argument_List)
is
Res : Module;
Inst : Synth_Instance_Acc;
Config : Iir;
Ent : Iir;
begin
Config := Ghdl_Synth_Configure (Args);
if Config = Null_Iir then
raise Errorout.Compilation_Error;
end if;
Netlists.Errors.Initialize;
Synthesis.Synth_Design (Config, Res, Inst);
if Res = No_Module then
raise Errorout.Compilation_Error;
end if;
case Cmd.Oformat is
when Format_None =>
null;
when Format_Raw =>
Netlists.Dump.Flag_Disp_Inline := Cmd.Disp_Inline;
Netlists.Dump.Disp_Module (Res);
when Format_Dump =>
Netlists.Dump.Flag_Disp_Inline := Cmd.Disp_Inline;
Netlists.Dump.Dump_Module (Res);
when Format_Vhdl =>
if Boolean'(True) then
Ent := Vhdl.Utils.Get_Entity_From_Configuration (Config);
Synth.Disp_Vhdl.Disp_Vhdl_Wrapper (Ent, Res, Inst);
else
Netlists.Disp_Vhdl.Disp_Vhdl (Res);
end if;
end case;
end Perform_Action;
function Get_Libghdl_Name return String
is
Libghdl_Version : String := Version.Ghdl_Ver;
begin
for I in Libghdl_Version'Range loop
if Libghdl_Version (I) = '.' or Libghdl_Version (I) = '-' then
Libghdl_Version (I) := '_';
end if;
end loop;
return "libghdl-" & Libghdl_Version
& Default_Paths.Shared_Library_Extension;
end Get_Libghdl_Name;
function Get_Libghdl_Path return String is
begin
if Ghdllocal.Exec_Prefix = null then
-- Compute install path (only once).
Ghdllocal.Set_Exec_Prefix_From_Program_Name;
end if;
return Ghdllocal.Exec_Prefix.all & Directory_Separator & "lib"
& Directory_Separator & Get_Libghdl_Name;
end Get_Libghdl_Path;
function Get_Libghdl_Include_Dir return String is
begin
-- Compute install path
Ghdllocal.Set_Exec_Prefix_From_Program_Name;
return Ghdllocal.Exec_Prefix.all & Directory_Separator & "include";
end Get_Libghdl_Include_Dir;
procedure Register_Commands is
begin
Ghdlmain.Register_Command (new Command_Synth);
Register_Command
(new Command_Str_Disp'
(Command_Type with
Cmd_Str => new String'
("--libghdl-name"),
Help_Str => new String'
("--libghdl-name Display libghdl name"),
Disp => Get_Libghdl_Name'Access));
Register_Command
(new Command_Str_Disp'
(Command_Type with
Cmd_Str => new String'
("--libghdl-library-path"),
Help_Str => new String'
("--libghdl-library-path Display libghdl library path"),
Disp => Get_Libghdl_Path'Access));
Register_Command
(new Command_Str_Disp'
(Command_Type with
Cmd_Str => new String'
("--libghdl-include-dir"),
Help_Str => new String'
("--libghdl-include-dir Display libghdl include directory"),
Disp => Get_Libghdl_Include_Dir'Access));
end Register_Commands;
procedure Init_For_Ghdl_Synth is
begin
Ghdlsynth.Register_Commands;
Options.Initialize;
Errorout.Console.Install_Handler;
Netlists.Errors.Initialize;
end Init_For_Ghdl_Synth;
end Ghdlsynth;
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