-- --
-- B o d y --
-- --
--- $Revision$
--- --
--- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2007, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- 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 distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Atree; use Atree;
with Einfo; use Einfo;
with Fname; use Fname;
-with Namet; use Namet;
-with Namet; use Namet;
with Output; use Output;
with Sinfo; use Sinfo;
with Sinput; use Sinput;
package body Lib is
+ Switch_Storing_Enabled : Boolean := True;
+ -- Set to False by Disable_Switch_Storing
+
-----------------------
-- Local Subprograms --
-----------------------
-- Used by In_Same_Extended_Unit and Earlier_In_Extended_Unit. Returns
-- value as described above.
+ function Get_Code_Or_Source_Unit
+ (S : Source_Ptr;
+ Unwind_Instances : Boolean) return Unit_Number_Type;
+ -- Common code for Get_Code_Unit (get unit of instantiation for location)
+ -- and Get_Source_Unit (get unit of template for location).
+
--------------------------------------------
-- Access Functions for Unit Table Fields --
--------------------------------------------
return Units.Table (U).Dependency_Num;
end Dependency_Num;
- function Dependent_Unit (U : Unit_Number_Type) return Boolean is
- begin
- return Units.Table (U).Dependent_Unit;
- end Dependent_Unit;
-
function Dynamic_Elab (U : Unit_Number_Type) return Boolean is
begin
return Units.Table (U).Dynamic_Elab;
return Units.Table (U).Main_Priority;
end Main_Priority;
+ function Munit_Index (U : Unit_Number_Type) return Nat is
+ begin
+ return Units.Table (U).Munit_Index;
+ end Munit_Index;
+
function Source_Index (U : Unit_Number_Type) return Source_File_Index is
begin
return Units.Table (U).Source_Index;
procedure Set_Fatal_Error (U : Unit_Number_Type; B : Boolean := True) is
begin
- Units.Table (U).Fatal_Error := True;
+ Units.Table (U).Fatal_Error := B;
end Set_Fatal_Error;
procedure Set_Generate_Code (U : Unit_Number_Type; B : Boolean := True) is
<<Continue>>
null;
end loop;
-
end Check_Same_Extended_Unit;
+ -------------------------------
+ -- Compilation_Switches_Last --
+ -------------------------------
+
+ function Compilation_Switches_Last return Nat is
+ begin
+ return Compilation_Switches.Last;
+ end Compilation_Switches_Last;
+
+ procedure Disable_Switch_Storing is
+ begin
+ Switch_Storing_Enabled := False;
+ end Disable_Switch_Storing;
+
------------------------------
-- Earlier_In_Extended_Unit --
------------------------------
end if;
end Generic_Separately_Compiled;
- -------------------
- -- Get_Code_Unit --
- -------------------
+ function Generic_Separately_Compiled
+ (Sfile : File_Name_Type) return Boolean
+ is
+ begin
+ -- Exactly the same as previous function, but works directly on a file
+ -- name.
- function Get_Code_Unit (S : Source_Ptr) return Unit_Number_Type is
- Source_File : Source_File_Index :=
- Get_Source_File_Index (Top_Level_Location (S));
+ if Is_Internal_File_Name
+ (Fname => Sfile,
+ Renamings_Included => True)
+ then
+ return False;
+
+ -- All other generic units do generate object files
+
+ else
+ return True;
+ end if;
+ end Generic_Separately_Compiled;
+ -----------------------------
+ -- Get_Code_Or_Source_Unit --
+ -----------------------------
+
+ function Get_Code_Or_Source_Unit
+ (S : Source_Ptr;
+ Unwind_Instances : Boolean) return Unit_Number_Type
+ is
begin
- for U in Units.First .. Units.Last loop
- if Source_Index (U) = Source_File then
- return U;
- end if;
- end loop;
+ -- Search table unless we have No_Location, which can happen if the
+ -- relevant location has not been set yet. Happens for example when
+ -- we obtain Sloc (Cunit (Main_Unit)) before it is set.
+
+ if S /= No_Location then
+ declare
+ Source_File : Source_File_Index;
+ Source_Unit : Unit_Number_Type;
+
+ begin
+ Source_File := Get_Source_File_Index (S);
+
+ if Unwind_Instances then
+ while Template (Source_File) /= No_Source_File loop
+ Source_File := Template (Source_File);
+ end loop;
+ end if;
- -- If not in the table, must be the main source unit, and we just
- -- have not got it put into the table yet.
+ Source_Unit := Unit (Source_File);
+
+ if Source_Unit /= No_Unit then
+ return Source_Unit;
+ end if;
+ end;
+ end if;
+
+ -- If S was No_Location, or was not in the table, we must be in the main
+ -- source unit (and the value has not been placed in the table yet),
+ -- or in one of the configuration pragma files.
return Main_Unit;
+ end Get_Code_Or_Source_Unit;
+
+ -------------------
+ -- Get_Code_Unit --
+ -------------------
+
+ function Get_Code_Unit (S : Source_Ptr) return Unit_Number_Type is
+ begin
+ return Get_Code_Or_Source_Unit (Top_Level_Location (S),
+ Unwind_Instances => False);
end Get_Code_Unit;
- function Get_Code_Unit (N : Node_Id) return Unit_Number_Type is
+ function Get_Code_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
begin
return Get_Code_Unit (Sloc (N));
end Get_Code_Unit;
function Get_Compilation_Switch (N : Pos) return String_Ptr is
begin
- if N >= Compilation_Switches.Last then
+ if N <= Compilation_Switches.Last then
return Compilation_Switches.Table (N);
else
----------------------------------
function Get_Cunit_Entity_Unit_Number
- (E : Entity_Id)
- return Unit_Number_Type
+ (E : Entity_Id) return Unit_Number_Type
is
begin
for U in Units.First .. Units.Last loop
---------------------
function Get_Source_Unit (S : Source_Ptr) return Unit_Number_Type is
- Source_File : Source_File_Index :=
- Get_Source_File_Index (Top_Level_Location (S));
-
begin
- Source_File := Get_Source_File_Index (S);
- while Template (Source_File) /= No_Source_File loop
- Source_File := Template (Source_File);
- end loop;
-
- for U in Units.First .. Units.Last loop
- if Source_Index (U) = Source_File then
- return U;
- end if;
- end loop;
-
- -- If not in the table, must be the main source unit, and we just
- -- have not got it put into the table yet.
-
- return Main_Unit;
+ return Get_Code_Or_Source_Unit (S, Unwind_Instances => True);
end Get_Source_Unit;
- function Get_Source_Unit (N : Node_Id) return Unit_Number_Type is
+ function Get_Source_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
begin
return Get_Source_Unit (Sloc (N));
end Get_Source_Unit;
-- In_Extended_Main_Code_Unit --
--------------------------------
- function In_Extended_Main_Code_Unit (N : Node_Id) return Boolean is
+ function In_Extended_Main_Code_Unit
+ (N : Node_Or_Entity_Id) return Boolean
+ is
begin
if Sloc (N) = Standard_Location then
return True;
then
return In_Extended_Main_Code_Unit (Associated_Node_For_Itype (N));
+ -- Otherwise see if we are in the main unit
+
elsif Get_Code_Unit (Sloc (N)) = Get_Code_Unit (Cunit (Main_Unit)) then
return True;
- else -- node may be in spec of main unit
+ -- Node may be in spec (or subunit etc) of main unit
+
+ else
+ return
+ In_Same_Extended_Unit (N, Cunit (Main_Unit));
+ end if;
+ end In_Extended_Main_Code_Unit;
+
+ function In_Extended_Main_Code_Unit (Loc : Source_Ptr) return Boolean is
+ begin
+ if Loc = Standard_Location then
+ return True;
+
+ elsif Loc = No_Location then
+ return False;
+
+ -- Otherwise see if we are in the main unit
+
+ elsif Get_Code_Unit (Loc) = Get_Code_Unit (Cunit (Main_Unit)) then
+ return True;
+
+ -- Location may be in spec (or subunit etc) of main unit
+
+ else
return
- In_Same_Extended_Unit (Sloc (N), Sloc (Cunit (Main_Unit)));
+ In_Same_Extended_Unit (Loc, Sloc (Cunit (Main_Unit)));
end if;
end In_Extended_Main_Code_Unit;
-- In_Extended_Main_Source_Unit --
----------------------------------
- function In_Extended_Main_Source_Unit (N : Node_Id) return Boolean is
+ function In_Extended_Main_Source_Unit
+ (N : Node_Or_Entity_Id) return Boolean
+ is
+ Nloc : constant Source_Ptr := Sloc (N);
+ Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit));
+
begin
- if Sloc (N) = Standard_Location then
+ -- If Mloc is not set, it means we are still parsing the main unit,
+ -- so everything so far is in the extended main source unit.
+
+ if Mloc = No_Location then
return True;
- elsif Sloc (N) = No_Location then
+ -- Special value cases
+
+ elsif Nloc = Standard_Location then
+ return True;
+
+ elsif Nloc = No_Location then
return False;
-- Special case Itypes to test the Sloc of the associated node. The
then
return In_Extended_Main_Source_Unit (Associated_Node_For_Itype (N));
+ -- Otherwise compare original locations to see if in same unit
+
else
return
In_Same_Extended_Unit
- (Original_Location (Sloc (N)),
- Original_Location (Sloc (Cunit (Main_Unit))));
+ (Original_Location (Nloc), Original_Location (Mloc));
end if;
end In_Extended_Main_Source_Unit;
+ function In_Extended_Main_Source_Unit
+ (Loc : Source_Ptr) return Boolean
+ is
+ Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit));
+
+ begin
+ -- If Mloc is not set, it means we are still parsing the main unit,
+ -- so everything so far is in the extended main source unit.
+
+ if Mloc = No_Location then
+ return True;
+
+ -- Special value cases
+
+ elsif Loc = Standard_Location then
+ return True;
+
+ elsif Loc = No_Location then
+ return False;
+
+ -- Otherwise compare original locations to see if in same unit
+
+ else
+ return
+ In_Same_Extended_Unit
+ (Original_Location (Loc), Original_Location (Mloc));
+ end if;
+ end In_Extended_Main_Source_Unit;
+
+ ------------------------
+ -- In_Predefined_Unit --
+ ------------------------
+
+ function In_Predefined_Unit (N : Node_Or_Entity_Id) return Boolean is
+ begin
+ return In_Predefined_Unit (Sloc (N));
+ end In_Predefined_Unit;
+
+ function In_Predefined_Unit (S : Source_Ptr) return Boolean is
+ Unit : constant Unit_Number_Type := Get_Source_Unit (S);
+ File : constant File_Name_Type := Unit_File_Name (Unit);
+ begin
+ return Is_Predefined_File_Name (File);
+ end In_Predefined_Unit;
+
-----------------------
-- In_Same_Code_Unit --
-----------------------
-- In_Same_Extended_Unit --
---------------------------
+ function In_Same_Extended_Unit
+ (N1, N2 : Node_Or_Entity_Id) return Boolean
+ is
+ begin
+ return Check_Same_Extended_Unit (Sloc (N1), Sloc (N2)) /= No;
+ end In_Same_Extended_Unit;
+
function In_Same_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is
begin
return Check_Same_Extended_Unit (S1, S2) /= No;
function Increment_Serial_Number return Nat is
TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number;
-
begin
TSN := TSN + 1;
return TSN;
Linker_Option_Lines.Init;
Load_Stack.Init;
Units.Init;
- Unit_Exception_Table_Present := False;
Compilation_Switches.Init;
end Initialize;
return Int (Units.Last) - Int (Main_Unit) + 1;
end Num_Units;
+ -----------------
+ -- Remove_Unit --
+ -----------------
+
+ procedure Remove_Unit (U : Unit_Number_Type) is
+ begin
+ if U = Units.Last then
+ Units.Decrement_Last;
+ end if;
+ end Remove_Unit;
+
----------------------------------
-- Replace_Linker_Option_String --
----------------------------------
begin
if Match_String'Length > 0 then
for J in 1 .. Linker_Option_Lines.Last loop
- String_To_Name_Buffer (Linker_Option_Lines.Table (J));
+ String_To_Name_Buffer (Linker_Option_Lines.Table (J).Option);
if Match_String = Name_Buffer (1 .. Match_String'Length) then
- Linker_Option_Lines.Table (J) := S;
+ Linker_Option_Lines.Table (J).Option := S;
return;
end if;
end loop;
procedure Store_Compilation_Switch (Switch : String) is
begin
- Compilation_Switches.Increment_Last;
- Compilation_Switches.Table (Compilation_Switches.Last) :=
- new String'(Switch);
+ if Switch_Storing_Enabled then
+ Compilation_Switches.Increment_Last;
+ Compilation_Switches.Table (Compilation_Switches.Last) :=
+ new String'(Switch);
+
+ -- Fix up --RTS flag which has been transformed by the gcc driver
+ -- into -fRTS
+
+ if Switch'Last >= Switch'First + 4
+ and then Switch (Switch'First .. Switch'First + 4) = "-fRTS"
+ then
+ Compilation_Switches.Table
+ (Compilation_Switches.Last) (Switch'First + 1) := '-';
+ end if;
+ end if;
end Store_Compilation_Switch;
--------------------------------
procedure Store_Linker_Option_String (S : String_Id) is
begin
Linker_Option_Lines.Increment_Last;
- Linker_Option_Lines.Table (Linker_Option_Lines.Last) := S;
+ Linker_Option_Lines.Table (Linker_Option_Lines.Last) :=
+ (Option => S, Unit => Current_Sem_Unit);
end Store_Linker_Option_String;
+ -------------------------------
+ -- Synchronize_Serial_Number --
+ -------------------------------
+
+ procedure Synchronize_Serial_Number is
+ TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number;
+ begin
+ TSN := TSN + 1;
+ end Synchronize_Serial_Number;
+
---------------
-- Tree_Read --
---------------
begin
Units.Tree_Read;
- -- Read Compilation_Switches table
+ -- Read Compilation_Switches table. First release the memory occupied
+ -- by the previously loaded switches.
+
+ for J in Compilation_Switches.First .. Compilation_Switches.Last loop
+ Free (Compilation_Switches.Table (J));
+ end loop;
Tree_Read_Int (N);
Compilation_Switches.Set_Last (N);
end loop;
end Tree_Write;
+ ------------
+ -- Unlock --
+ ------------
+
+ procedure Unlock is
+ begin
+ Linker_Option_Lines.Locked := False;
+ Load_Stack.Locked := False;
+ Units.Locked := False;
+ end Unlock;
+
-----------------
-- Version_Get --
-----------------
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