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|
-- Ortho entry point for translation.
-- Copyright (C) 2002, 2003, 2004, 2005 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 Types; use Types;
with Name_Table;
with Iirs; use Iirs;
with Libraries;
with Iirs_Utils; use Iirs_Utils;
with Std_Package;
with Flags;
with Configuration;
with Translation;
with Sem;
with Sem_Lib; use Sem_Lib;
with Errorout; use Errorout;
with Errorout.Console;
with GNAT.OS_Lib;
with Bug;
with Trans_Be;
with Options;
package body Ortho_Front is
-- The action to be performed by the compiler.
type Action_Type is
(
-- Normal mode: compile a design file.
Action_Compile,
-- Generate code to elaborate a design unit.
Action_Elaborate,
-- Elaborate a design.
Action_Pre_Elaborate,
-- Analyze files and elaborate unit.
Action_Anaelab,
-- Generate code for std.package.
Action_Compile_Std_Package
);
Action : Action_Type := Action_Compile;
-- Name of the entity to elaborate.
Elab_Entity : String_Acc;
-- Name of the architecture to elaborate.
Elab_Architecture : String_Acc;
-- Filename for the list of files to link.
Elab_Filelist : String_Acc;
Flag_Expect_Failure : Boolean;
type Id_Link;
type Id_Link_Acc is access Id_Link;
type Id_Link is record
Id : Name_Id;
Link : Id_Link_Acc;
end record;
Anaelab_Files : Id_Link_Acc := null;
Anaelab_Files_Last : Id_Link_Acc := null;
procedure Init is
begin
-- Set program name for error message.
Errorout.Console.Install_Handler;
-- Initialize.
Trans_Be.Register_Translation_Back_End;
Options.Initialize;
Elab_Filelist := null;
Elab_Entity := null;
Elab_Architecture := null;
Flag_Expect_Failure := False;
end Init;
function Decode_Elab_Option (Arg : String_Acc; Cmd : String)
return Natural is
begin
Elab_Architecture := null;
-- Entity (+ architecture) to elaborate
if Arg = null then
Error_Msg_Option
("entity or configuration name required after " & Cmd);
return 0;
end if;
if Arg (Arg.all'Last) = ')' then
-- Name is ENTITY(ARCH).
-- Split.
declare
P : Natural;
Len : Natural;
Is_Ext : Boolean;
begin
P := Arg.all'Last - 1;
Len := P - Arg.all'First + 1;
-- Must be at least 'e(a)'.
if Len < 4 then
Error_Msg_Option ("ill-formed name after " & Cmd);
return 0;
end if;
-- Handle extended name.
if Arg (P) = '\' then
P := P - 1;
Is_Ext := True;
else
Is_Ext := False;
end if;
loop
if P = Arg.all'First then
Error_Msg_Option ("ill-formed name after " & Cmd);
return 0;
end if;
exit when Arg (P) = '(' and Is_Ext = False;
if Arg (P) = '\' then
if Arg (P - 1) = '\' then
P := P - 2;
elsif Arg (P - 1) = '(' then
P := P - 1;
exit;
else
Error_Msg_Option ("ill-formed name after " & Cmd);
return 0;
end if;
else
P := P - 1;
end if;
end loop;
Elab_Architecture := new String'(Arg (P + 1 .. Arg'Last - 1));
Elab_Entity := new String'(Arg (Arg'First .. P - 1));
end;
else
Elab_Entity := new String'(Arg.all);
Elab_Architecture := new String'("");
end if;
return 2;
end Decode_Elab_Option;
function Decode_Option (Opt : String_Acc; Arg: String_Acc) return Natural
is
begin
if Opt.all = "--compile-standard" then
Action := Action_Compile_Std_Package;
Flags.Bootstrap := True;
return 1;
elsif Opt.all = "--elab" then
if Action /= Action_Compile then
Error_Msg_Option ("several --elab options");
return 0;
end if;
Action := Action_Elaborate;
return Decode_Elab_Option (Arg, "--elab");
elsif Opt.all = "--pre-elab" then
if Action /= Action_Compile then
Error_Msg_Option ("several --pre-elab options");
return 0;
end if;
Action := Action_Pre_Elaborate;
return Decode_Elab_Option (Arg, "--pre-elab");
elsif Opt.all = "--anaelab" then
if Action /= Action_Compile then
Error_Msg_Option ("several --anaelab options");
return 0;
end if;
Action := Action_Anaelab;
return Decode_Elab_Option (Arg, "--anaelab");
elsif Opt'Length > 14
and then Opt (Opt'First .. Opt'First + 13) = "--ghdl-source="
then
if Action /= Action_Anaelab then
Error_Msg_Option
("--ghdl-source option allowed only after --anaelab options");
return 0;
end if;
if Arg /= null then
Error_Msg_Option ("no argument allowed after --ghdl-source");
return 0;
end if;
declare
L : Id_Link_Acc;
begin
L := new Id_Link'(Id => Name_Table.Get_Identifier
(Opt (Opt'First + 14 .. Opt'Last)),
Link => null);
if Anaelab_Files = null then
Anaelab_Files := L;
else
Anaelab_Files_Last.Link := L;
end if;
Anaelab_Files_Last := L;
end;
return 1;
elsif Opt.all = "-l" then
if Arg = null then
Error_Msg_Option ("filename required after -l");
end if;
if Elab_Filelist /= null then
Error_Msg_Option ("several -l options");
else
Elab_Filelist := new String'(Arg.all);
end if;
return 2;
elsif Opt.all = "--help" then
Options.Disp_Options_Help;
return 1;
elsif Opt.all = "--expect-failure" then
Flag_Expect_Failure := True;
return 1;
elsif Opt'Length > 7 and then Opt (1 .. 7) = "--ghdl-" then
if Options.Parse_Option (Opt (7 .. Opt'Last)) then
return 1;
else
return 0;
end if;
elsif Options.Parse_Option (Opt.all) then
return 1;
else
return 0;
end if;
end Decode_Option;
-- Add dependencies of UNIT to DEP_LIST. UNIT is not added to DEP_LIST.
procedure Add_Dependence (Unit : Iir_Design_Unit; Dep_List : Iir_List)
is
List : constant Iir_List := Get_Dependence_List (Unit);
It : List_Iterator;
El : Iir;
begin
It := List_Iterate_Safe (List);
while Is_Valid (It) loop
El := Get_Element (It);
El := Get_Unit_From_Dependence (El);
if not Get_Configuration_Mark_Flag (El) then
-- EL is not in the list.
Add_Dependence (El, Dep_List);
-- Add to the list (only once).
Set_Configuration_Mark_Flag (El, True);
Append_Element (Dep_List, El);
end if;
Next (It);
end loop;
end Add_Dependence;
procedure Do_Compile (Vhdl_File : Name_Id)
is
Res : Iir_Design_File;
New_Design_File : Iir_Design_File;
Design : Iir_Design_Unit;
Next_Design : Iir_Design_Unit;
Prev_Design : Iir_Design_Unit;
-- List of dependencies.
Dep_List : Iir_List;
Dep_It : List_Iterator;
begin
-- Do not elaborate.
Flags.Flag_Elaborate := False;
-- Read and parse the file.
Res := Load_File_Name (Vhdl_File);
if Errorout.Nbr_Errors > 0 then
raise Compilation_Error;
end if;
-- Analyze all design units.
-- FIXME: outdate the design file?
New_Design_File := Null_Iir;
Design := Get_First_Design_Unit (Res);
while Is_Valid (Design) loop
-- Analyze and canon a design unit.
Finish_Compilation (Design, True);
Next_Design := Get_Chain (Design);
if Errorout.Nbr_Errors = 0 then
Set_Chain (Design, Null_Iir);
Libraries.Add_Design_Unit_Into_Library (Design);
New_Design_File := Get_Design_File (Design);
end if;
Design := Next_Design;
end loop;
if Errorout.Nbr_Errors > 0 then
raise Compilation_Error;
end if;
-- Must have at least one design unit
pragma Assert (Is_Valid (New_Design_File));
-- Do late analysis checks.
Design := Get_First_Design_Unit (New_Design_File);
while Is_Valid (Design) loop
Sem.Sem_Analysis_Checks_List
(Design, Is_Warning_Enabled (Warnid_Delayed_Checks));
Design := Get_Chain (Design);
end loop;
-- Gather dependencies
pragma Assert (Flags.Flag_Elaborate = False);
Configuration.Flag_Load_All_Design_Units := False;
-- Exclude std.standard
Set_Configuration_Mark_Flag (Std_Package.Std_Standard_Unit, True);
Set_Configuration_Done_Flag (Std_Package.Std_Standard_Unit, True);
Dep_List := Create_Iir_List;
Design := Get_First_Design_Unit (New_Design_File);
Prev_Design := Null_Iir;
Set_First_Design_Unit (New_Design_File, Null_Iir);
Set_Last_Design_Unit (New_Design_File, Null_Iir);
while Is_Valid (Design) loop
-- Unlink.
Next_Design := Get_Chain (Design);
Set_Chain (Design, Null_Iir);
-- Discard obsolete units.
if Get_Date (Design) /= Date_Obsolete then
if Prev_Design = Null_Iir then
Set_First_Design_Unit (New_Design_File, Design);
else
Set_Last_Design_Unit (New_Design_File, Design);
Set_Chain (Prev_Design, Design);
end if;
Prev_Design := Design;
Add_Dependence (Design, Dep_List);
end if;
Design := Next_Design;
end loop;
if Errorout.Nbr_Errors > 0 then
-- Errors can happen (missing package body for instantiation).
raise Compilation_Error;
end if;
-- Translate declarations of dependencies.
Translation.Translate_Standard (False);
Dep_It := List_Iterate (Dep_List);
while Is_Valid (Dep_It) loop
Design := Get_Element (Dep_It);
if Get_Design_File (Design) /= New_Design_File then
-- Do not yet translate units to be compiled. They can appear as
-- dependencies.
Translation.Translate (Design, False);
end if;
Next (Dep_It);
end loop;
-- Compile only now.
-- Note: the order of design unit is kept.
Design := Get_First_Design_Unit (New_Design_File);
while Is_Valid (Design) loop
if Get_Kind (Get_Library_Unit (Design))
= Iir_Kind_Configuration_Declaration
then
-- Defer code generation of configuration declaration.
-- (default binding may change between analysis and
-- elaboration).
Translation.Translate (Design, False);
else
Translation.Translate (Design, True);
end if;
if Errorout.Nbr_Errors > 0 then
-- This can happen (foreign attribute).
raise Compilation_Error;
end if;
Design := Get_Chain (Design);
end loop;
-- Save the working library.
Libraries.Save_Work_Library;
end Do_Compile;
Nbr_Parse : Natural := 0;
function Parse (Filename : String_Acc) return Boolean
is
Res : Iir_Design_File;
Design : Iir_Design_Unit;
Next_Design : Iir_Design_Unit;
Config : Iir;
begin
if Nbr_Parse = 0 then
-- Initialize only once...
Libraries.Load_Std_Library;
-- Here, time_base can be set.
Translation.Initialize;
if Action = Action_Anaelab and then Anaelab_Files /= null then
Libraries.Load_Work_Library (True);
else
Libraries.Load_Work_Library (False);
end if;
end if;
Nbr_Parse := Nbr_Parse + 1;
case Action is
when Action_Elaborate =>
Flags.Flag_Elaborate := True;
Flags.Flag_Only_Elab_Warnings := True;
if Elab_Filelist = null then
Error_Msg_Option ("missing -l for --elab");
raise Option_Error;
end if;
Config := Configuration.Configure
(Elab_Entity.all, Elab_Architecture.all);
if Errorout.Nbr_Errors > 0 then
-- This may happen (bad entity for example).
raise Compilation_Error;
end if;
Translation.Elaborate (Config, Elab_Filelist.all, False);
if Errorout.Nbr_Errors > 0 then
-- This may happen (bad entity for example).
raise Compilation_Error;
end if;
when Action_Pre_Elaborate =>
Flags.Flag_Elaborate := True;
Flags.Flag_Only_Elab_Warnings := True;
if Elab_Filelist = null then
Error_Msg_Option ("missing -l for --pre-elab");
raise Option_Error;
end if;
raise Program_Error;
when Action_Anaelab =>
-- Parse files.
if Anaelab_Files = null then
Flags.Flag_Elaborate_With_Outdated := False;
else
Flags.Flag_Elaborate_With_Outdated := True;
declare
L : Id_Link_Acc;
begin
L := Anaelab_Files;
while L /= null loop
Res := Load_File_Name (L.Id);
if Errorout.Nbr_Errors > 0 then
raise Compilation_Error;
end if;
-- Put units into library.
Design := Get_First_Design_Unit (Res);
while not Is_Null (Design) loop
Next_Design := Get_Chain (Design);
Set_Chain (Design, Null_Iir);
Libraries.Add_Design_Unit_Into_Library (Design);
Design := Next_Design;
end loop;
L := L.Link;
end loop;
end;
end if;
Flags.Flag_Elaborate := True;
Flags.Flag_Only_Elab_Warnings := False;
Config := Configuration.Configure
(Elab_Entity.all, Elab_Architecture.all);
Translation.Elaborate (Config, "", True);
if Errorout.Nbr_Errors > 0 then
-- This may happen (bad entity for example).
raise Compilation_Error;
end if;
when Action_Compile_Std_Package =>
if Filename /= null
and then Filename.all /= "std_standard.vhdl"
then
Error_Msg_Option
("--compile-standard is not compatible with a filename");
return False;
end if;
Translation.Translate_Standard (True);
when Action_Compile =>
if Filename = null then
Error_Msg_Option ("no input file");
return False;
end if;
if Nbr_Parse > 1 then
Error_Msg_Option ("can compile only one file (file """ &
Filename.all & """ ignored)");
return False;
end if;
Do_Compile (Name_Table.Get_Identifier (Filename.all));
end case;
if Flag_Expect_Failure then
return False;
else
return True;
end if;
exception
when Compilation_Error =>
if Flag_Expect_Failure then
-- Very brutal...
GNAT.OS_Lib.OS_Exit (0);
end if;
return False;
when Option_Error =>
return False;
when E: others =>
Bug.Disp_Bug_Box (E);
raise;
end Parse;
end Ortho_Front;
|