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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 Name_Table;
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 Simple_IO;
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.Disp_Dot;
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_Default,
Format_Raw, Format_Dump, Format_Dot,
Format_Vhdl,
Format_None);
type Name_Id_Array is array (Natural range <>) of Name_Id;
-- Command --synth
type Command_Synth is new Command_Lib with record
-- Control format of the output.
Disp_Inline : Boolean := True;
Disp_Id : Boolean := True;
Oformat : Out_Format := Format_Default;
Flag_Stats : Boolean := False;
-- Control name encoding of the top-entity.
Top_Encoding : Name_Encoding := Name_Asis;
-- If True, a failure is expected. For tests.
Expect_Failure : Boolean := False;
Nbr_Vendor_Libraries : Natural := 0;
Vendor_Libraries : Name_Id_Array (1 .. 8) := (others => No_Name_Id);
end record;
function Decode_Command (Cmd : Command_Synth; Name : String)
return Boolean;
function Get_Short_Help (Cmd : Command_Synth) return String;
procedure Disp_Long_Help (Cmd : Command_Synth);
procedure Decode_Option (Cmd : in out Command_Synth;
Option : String;
Arg : String;
Res : out Option_State);
procedure Perform_Action (Cmd : in out 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 Disp_Long_Help (Cmd : Command_Synth)
is
pragma Unreferenced (Cmd);
procedure P (Str : String) renames Simple_IO.Put_Line;
begin
P ("You can directly pass the list of files to synthesize:");
P (" --synth [OPTIONS] { [--work=NAME] FILE } -e [UNIT]");
P (" If UNIT is not present, the top unit is automatically found");
P (" You can use --work=NAME to change the library between files");
P ("Or use already analysed files:");
P (" --synth [OPTIONS] -e UNIT");
P ("In addition to analyze options, you can use:");
P (" -gNAME=VALUE Override the generic NAME of the top unit");
P (" --vendor-library=NAME Any unit from library NAME is a black boxe");
P (" --no-formal Neither synthesize assert nor PSL");
P (" --no-assert-cover Cover PSL assertion activation");
end Disp_Long_Help;
procedure Decode_Option (Cmd : in out Command_Synth;
Option : String;
Arg : String;
Res : out Option_State)
is
pragma Assert (Option'First = 1);
begin
Res := Option_Ok;
if Option'Last > 3
and then Option (2) = 'g'
and then Is_Generic_Override_Option (Option)
then
Res := Decode_Generic_Override_Option (Option);
elsif Option = "--no-formal" then
Synth.Flags.Flag_Formal := False;
elsif Option = "--formal" then
Synth.Flags.Flag_Formal := True;
elsif Option = "--no-assert-cover" then
Synth.Flags.Flag_Assert_Cover := False;
elsif Option = "--assert-cover" then
Synth.Flags.Flag_Assert_Cover := True;
elsif Option = "--top-name=hash" then
Cmd.Top_Encoding := Name_Hash;
elsif Option = "--top-name=asis" then
Cmd.Top_Encoding := Name_Asis;
elsif Option'Last > 17
and then Option (1 .. 17) = "--vendor-library="
then
if Cmd.Nbr_Vendor_Libraries >= Cmd.Vendor_Libraries'Last then
-- FIXME: use a table/vector ?
Errorout.Error_Msg_Option ("too many vendor libraries");
Res := Option_Err;
else
declare
Name : String := Option (18 .. Option'Last);
Err : Boolean;
begin
Vhdl.Scanner.Convert_Identifier (Name, Err);
if Err then
Res := Option_Err;
else
Cmd.Nbr_Vendor_Libraries := Cmd.Nbr_Vendor_Libraries + 1;
Cmd.Vendor_Libraries (Cmd.Nbr_Vendor_Libraries) :=
Name_Table.Get_Identifier (Name);
end if;
end;
end if;
elsif Option = "--expect-failure" then
Cmd.Expect_Failure := True;
elsif Option = "--disp-noinline" then
Cmd.Disp_Inline := False;
elsif Option = "--disp-noid" then
Cmd.Disp_Id := False;
elsif Option = "--out=raw" then
Cmd.Oformat := Format_Raw;
elsif Option = "--out=dump" then
Cmd.Oformat := Format_Dump;
elsif Option = "--out=dot" then
Cmd.Oformat := Format_Dot;
elsif Option = "--out=none" then
Cmd.Oformat := Format_None;
elsif Option = "--out=vhdl" then
Cmd.Oformat := Format_Vhdl;
elsif Option = "-di" then
Flag_Debug_Noinference := True;
elsif Option = "-dc" then
Flag_Debug_Nocleanup := True;
elsif Option = "-dm" then
Flag_Debug_Nomemory1 := True;
Flag_Debug_Nomemory2 := True;
elsif Option = "-dm2" then
-- Reduce muxes, but do not create memories.
Flag_Debug_Nomemory2 := True;
elsif Option = "-de" then
Flag_Debug_Noexpand := True;
elsif Option = "-t" then
Flag_Trace_Statements := True;
elsif Option = "-i" then
Flag_Debug_Init := True;
elsif Option = "-g" then
Flag_Debug_Enable := True;
elsif Option = "-v" then
if not Synth.Flags.Flag_Verbose then
Synth.Flags.Flag_Verbose := True;
else
Flags.Verbose := True;
end if;
elsif Option = "--stats" then
Cmd.Flag_Stats := True;
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
(Init : Boolean; Cmd : Command_Synth; 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;
if Init then
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;
-- Load content only if there are no files.
Libraries.Load_Work_Library (E_Opt >= Args'First);
-- Do not canon concurrent statements.
Vhdl.Canon.Canon_Flag_Concurrent_Stmts := False;
-- Do not create concurrent signal assignment for inertial
-- association. They are handled directly.
Vhdl.Canon.Canon_Flag_Inertial_Associations := False;
end if;
-- Mark vendor libraries.
for I in 1 .. Cmd.Nbr_Vendor_Libraries loop
declare
Lib : Node;
begin
Lib := Libraries.Get_Library
(Cmd.Vendor_Libraries (I), No_Location);
Set_Vendor_Library_Flag (Lib, True);
end;
end loop;
Flags.Flag_Elaborate_With_Outdated := E_Opt >= Args'First;
-- Analyze files (if any)
for I in Args'First .. E_Opt - 1 loop
declare
Arg : String renames Args (I).all;
pragma Assert (Arg'First = 1);
Id : Name_Id;
begin
if Arg'Last > 7 and then Arg (1 .. 7) = "--work=" then
Id := Libraries.Decode_Work_Option (Arg);
if Id = Null_Identifier then
return Null_Iir;
end if;
Libraries.Work_Library_Name := Id;
Libraries.Load_Work_Library (True);
else
Ghdlcomp.Compile_Load_File (Arg);
end if;
end;
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, Libraries.Command_Line_Location);
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.Apply_Generic_Override (Entity);
Vhdl.Configuration.Check_Entity_Declaration_Top (Entity, False);
if Nbr_Errors > 0 then
return Null_Iir;
end if;
end;
-- Annotate all units.
Vhdl.Annotations.Initialize_Annotate;
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;
procedure Disp_Design (Cmd : Command_Synth;
Default : Out_Format;
Res : Module;
Config : Iir;
Inst : Synth_Instance_Acc)
is
Format : Out_Format;
Ent : Iir;
begin
Format := Cmd.Oformat;
if Format = Format_Default then
Format := Default;
end if;
case Format is
when Format_Default =>
raise Internal_Error;
when Format_None =>
null;
when Format_Raw =>
Netlists.Dump.Flag_Disp_Inline := Cmd.Disp_Inline;
Netlists.Dump.Flag_Disp_Id := Cmd.Disp_Id;
Netlists.Dump.Disp_Module (Res);
when Format_Dump =>
Netlists.Dump.Flag_Disp_Inline := Cmd.Disp_Inline;
Netlists.Dump.Dump_Module (Res);
when Format_Dot =>
Netlists.Disp_Dot.Disp_Dot_Top_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 Disp_Design;
function Ghdl_Synth
(Init : Natural; Argc : Natural; Argv : C_String_Array_Acc)
return Module
is
use Vhdl.Configuration;
Args : Argument_List (1 .. Argc);
Res : Module;
Cmd : Command_Synth;
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 (Cmd, Args, First_Arg);
-- Do the real work!
Config := Ghdl_Synth_Configure
(Init /= 0, Cmd, Args (First_Arg .. Args'Last));
if Config = Null_Iir then
return No_Module;
end if;
Synthesis.Synth_Design (Config, Cmd.Top_Encoding, Res, Inst);
if Res = No_Module then
return No_Module;
end if;
Disp_Design (Cmd, Format_None, Res, Config, Inst);
-- De-elaborate all packages, so that they could be re-used for
-- synthesis of a second design.
-- FIXME: move to vhdl.configure ?
for I in Design_Units.First .. Design_Units.Last loop
Set_Elab_Flag (Design_Units.Table (I), False);
end loop;
Set_Elab_Flag (Vhdl.Std_Package.Std_Standard_Unit, False);
Vhdl.Annotations.Finalize_Annotate;
Synth.Context.Free_Base_Instance;
return Res;
exception
when Option_Error
| Errorout.Compilation_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 : in out Command_Synth;
Args : Argument_List)
is
Res : Module;
Inst : Synth_Instance_Acc;
Config : Iir;
begin
Config := Ghdl_Synth_Configure (True, Cmd, Args);
if Config = Null_Iir then
if Cmd.Expect_Failure then
return;
else
raise Errorout.Compilation_Error;
end if;
end if;
Netlists.Errors.Initialize;
Synthesis.Synth_Design (Config, Cmd.Top_Encoding, Res, Inst);
if Res = No_Module then
if Cmd.Expect_Failure then
return;
else
raise Errorout.Compilation_Error;
end if;
elsif Cmd.Expect_Failure then
raise Errorout.Compilation_Error;
end if;
Disp_Design (Cmd, Format_Vhdl, Res, Config, Inst);
if Cmd.Flag_Stats then
Netlists.Disp_Stats;
end if;
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;
|