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-- LLVM back-end for ortho.
-- 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 GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with Ada.Unchecked_Conversion;
package body Ortho_LLVM.Main is
Dbg_Str : constant String := "dbg";
function To_String (C : Cstring) return String is
function Strlen (C : Cstring) return Natural;
pragma Import (C, Strlen);
subtype Fat_String is String (Positive);
type Fat_String_Acc is access Fat_String;
function To_Fat_String_Acc is new
Ada.Unchecked_Conversion (Cstring, Fat_String_Acc);
begin
return To_Fat_String_Acc (C)(1 .. Strlen (C));
end To_String;
procedure Init is
begin
Builder := CreateBuilder;
Decl_Builder := CreateBuilder;
Char_Type := New_Unsigned_Type (8);
New_Type_Decl (Get_Identifier ("__llvm_char"), Char_Type);
if False then
Char_Ptr_Type := New_Access_Type (Char_Type);
New_Type_Decl (Get_Identifier ("__llvm_char_ptr"), Char_Ptr_Type);
Stacksave_Fun := AddFunction
(Module, Stacksave_Name'Address,
FunctionType (Get_LLVM_Type (Char_Ptr_Type),
TypeRefArray'(1 .. 0 => Null_TypeRef), 0, 0));
Stackrestore_Fun := AddFunction
(Module, Stackrestore_Name'Address,
FunctionType
(VoidType,
TypeRefArray'(1 => Get_LLVM_Type (Char_Ptr_Type)), 1, 0));
end if;
if Flag_Debug then
Debug_ID := GetMDKindID (Dbg_Str, Dbg_Str'Length);
declare
Atypes : TypeRefArray (1 .. 2);
Ftype : TypeRef;
Name : String := "llvm.dbg.declare" & ASCII.NUL;
begin
Atypes := (MetadataType, MetadataType);
Ftype := FunctionType (VoidType, Atypes, Atypes'Length, 0);
Llvm_Dbg_Declare := AddFunction (Module, Name'Address, Ftype);
AddFunctionAttr (Llvm_Dbg_Declare,
NoUnwindAttribute + ReadNoneAttribute);
end;
end if;
end Init;
end Ortho_LLVM.Main;
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