X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gcc%2Fada%2Frtsfind.adb;fp=gcc%2Fada%2Frtsfind.adb;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=5fbba9b9f2a573db2a05f43c232e722c8c0fbca8;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gcc/ada/rtsfind.adb b/gcc/ada/rtsfind.adb deleted file mode 100644 index 5fbba9b9..00000000 --- a/gcc/ada/rtsfind.adb +++ /dev/null @@ -1,938 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- R T S F I N D -- --- -- --- B o d y -- --- -- --- $Revision: 1.3.10.1 $ --- -- --- Copyright (C) 1992-2001, 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- -- --- ware Foundation; either version 2, or (at your option) any later ver- -- --- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- --- OUT 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 distributed with GNAT; see file COPYING. If not, write -- --- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- --- MA 02111-1307, USA. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - -with Atree; use Atree; -with Casing; use Casing; -with Csets; use Csets; -with Debug; use Debug; -with Einfo; use Einfo; -with Elists; use Elists; -with Fname; use Fname; -with Fname.UF; use Fname.UF; -with Lib; use Lib; -with Lib.Load; use Lib.Load; -with Namet; use Namet; -with Nlists; use Nlists; -with Nmake; use Nmake; -with Output; use Output; -with Opt; use Opt; -with Restrict; use Restrict; -with Sem; use Sem; -with Sem_Ch7; use Sem_Ch7; -with Sem_Util; use Sem_Util; -with Sinfo; use Sinfo; -with Stand; use Stand; -with Snames; use Snames; -with Tbuild; use Tbuild; -with Uname; use Uname; - -package body Rtsfind is - - ---------------- - -- Unit table -- - ---------------- - - -- The unit table has one entry for each unit included in the definition - -- of the type RTU_Id in the spec. The table entries are initialized in - -- Initialize to set the Entity field to Empty, indicating that the - -- corresponding unit has not yet been loaded. The fields are set when - -- a unit is loaded to contain the defining entity for the unit, the - -- unit name, and the unit number. - - type RT_Unit_Table_Record is record - Entity : Entity_Id; - Uname : Unit_Name_Type; - Unum : Unit_Number_Type; - Withed : Boolean; - end record; - - RT_Unit_Table : array (RTU_Id) of RT_Unit_Table_Record; - - -------------------------- - -- Runtime Entity Table -- - -------------------------- - - -- There is one entry in the runtime entity table for each entity that is - -- included in the definition of the RE_Id type in the spec. The entries - -- are set by Initialize_Rtsfind to contain Empty, indicating that the - -- entity has not yet been located. Once the entity is located for the - -- first time, its ID is stored in this array, so that subsequent calls - -- for the same entity can be satisfied immediately. - - RE_Table : array (RE_Id) of Entity_Id; - - -------------------------- - -- Generation of WITH's -- - -------------------------- - - -- When a unit is implicitly loaded as a result of a call to RTE, it - -- is necessary to create an implicit with to ensure that the object - -- is correctly loaded by the binder. Such with statements are only - -- required when the request is from the extended main unit (if a - -- client needs a with, that will be taken care of when the client - -- is compiled. - - -- We always attach the with to the main unit. This is not perfectly - -- accurate in terms of elaboration requirements, but it is close - -- enough, since the units that are accessed using rtsfind do not - -- have delicate elaboration requirements. - - -- The flag Withed in the unit table record is initially set to False. - -- It is set True if a with has been generated for the main unit for - -- the corresponding unit. - - ----------------------- - -- Local Subprograms -- - ----------------------- - - procedure Load_Fail (S : String; U_Id : RTU_Id; Ent_Name : String := ""); - -- Internal procedure called if we can't find the entity or unit. - -- The parameter is a detailed error message that is to be given. - -- S is a reason for failing to compile the file. U_Id is the unit - -- id, and Ent_Name, if non-null, is the associated entity name. - - function Get_Unit_Name (U_Id : RTU_Id) return Unit_Name_Type; - -- Retrieves the Unit Name given a unit id represented by its - -- enumaration value in RTU_Id. - - procedure Load_RTU (U_Id : RTU_Id; Use_Setting : Boolean := False); - -- Load the unit whose Id is given if not already loaded. The unit is - -- loaded, analyzed, and added to the with list, and the entry in - -- RT_Unit_Table is updated to reflect the load. The second parameter - -- indicates the initial setting for the Is_Potentially_Use_Visible - -- flag of the entity for the loaded unit (if it is indeed loaded). - -- A value of False means nothing special need be done. A value of - -- True indicates that this flag must be set to True. It is needed - -- only in the Text_IO_Kludge procedure, which may materialize an - -- entity of Text_IO (or Wide_Text_IO) that was previously unknown. - - function RE_Chars (E : RE_Id) return Name_Id; - -- Given a RE_Id value returns the Chars of the corresponding entity. - - ------------------- - -- Get_Unit_Name -- - ------------------- - - function Get_Unit_Name (U_Id : RTU_Id) return Unit_Name_Type is - Uname_Chars : constant String := RTU_Id'Image (U_Id); - - begin - Name_Len := Uname_Chars'Length; - Name_Buffer (1 .. Name_Len) := Uname_Chars; - Set_Casing (All_Lower_Case); - - if U_Id in Ada_Child then - Name_Buffer (4) := '.'; - - if U_Id in Ada_Calendar_Child then - Name_Buffer (13) := '.'; - - elsif U_Id in Ada_Finalization_Child then - Name_Buffer (17) := '.'; - - elsif U_Id in Ada_Real_Time_Child then - Name_Buffer (14) := '.'; - - elsif U_Id in Ada_Streams_Child then - Name_Buffer (12) := '.'; - - elsif U_Id in Ada_Text_IO_Child then - Name_Buffer (12) := '.'; - - elsif U_Id in Ada_Wide_Text_IO_Child then - Name_Buffer (17) := '.'; - end if; - - elsif U_Id in Interfaces_Child then - Name_Buffer (11) := '.'; - - elsif U_Id in System_Child then - Name_Buffer (7) := '.'; - - if U_Id in System_Tasking_Child then - Name_Buffer (15) := '.'; - end if; - - if U_Id in System_Tasking_Restricted_Child then - Name_Buffer (26) := '.'; - end if; - - if U_Id in System_Tasking_Protected_Objects_Child then - Name_Buffer (33) := '.'; - end if; - - if U_Id in System_Tasking_Async_Delays_Child then - Name_Buffer (28) := '.'; - end if; - end if; - - -- Add %s at end for spec - - Name_Buffer (Name_Len + 1) := '%'; - Name_Buffer (Name_Len + 2) := 's'; - Name_Len := Name_Len + 2; - - return Name_Find; - end Get_Unit_Name; - - ---------------- - -- Initialize -- - ---------------- - - procedure Initialize is - begin - -- Initialize the unit table - - for J in RTU_Id loop - RT_Unit_Table (J).Entity := Empty; - end loop; - - for J in RE_Id loop - RE_Table (J) := Empty; - end loop; - end Initialize; - - ------------ - -- Is_RTE -- - ------------ - - function Is_RTE (Ent : Entity_Id; E : RE_Id) return Boolean is - E_Unit_Name : Unit_Name_Type; - Ent_Unit_Name : Unit_Name_Type; - - S : Entity_Id; - E1 : Entity_Id; - E2 : Entity_Id; - - begin - if No (Ent) then - return False; - - -- If E has already a corresponding entity, check it directly, - -- going to full views if they exist to deal with the incomplete - -- and private type cases properly. - - elsif Present (RE_Table (E)) then - E1 := Ent; - - if Is_Type (E1) and then Present (Full_View (E1)) then - E1 := Full_View (E1); - end if; - - E2 := RE_Table (E); - - if Is_Type (E2) and then Present (Full_View (E2)) then - E2 := Full_View (E2); - end if; - - return E1 = E2; - end if; - - -- If the unit containing E is not loaded, we already know that - -- the entity we have cannot have come from this unit. - - E_Unit_Name := Get_Unit_Name (RE_Unit_Table (E)); - - if not Is_Loaded (E_Unit_Name) then - return False; - end if; - - -- Here the unit containing the entity is loaded. We have not made - -- an explicit call to RTE to get the entity in question, but we may - -- have obtained a reference to it indirectly from some other entity - -- in the same unit, or some other unit that references it. - - -- Get the defining unit of the entity - - S := Scope (Ent); - - if Ekind (S) /= E_Package then - return False; - end if; - - Ent_Unit_Name := Get_Unit_Name (Unit_Declaration_Node (S)); - - -- If the defining unit of the entity we are testing is not the - -- unit containing E, then they cannot possibly match. - - if Ent_Unit_Name /= E_Unit_Name then - return False; - end if; - - -- If the units match, then compare the names (remember that no - -- overloading is permitted in entities fetched using Rtsfind). - - if RE_Chars (E) = Chars (Ent) then - RE_Table (E) := Ent; - - -- If front-end inlining is enabled, we may be within a body that - -- contains inlined functions, which has not been retrieved through - -- rtsfind, and therefore is not yet recorded in the RT_Unit_Table. - -- Add the unit information now, it must be fully available. - - declare - U : RT_Unit_Table_Record - renames RT_Unit_Table (RE_Unit_Table (E)); - begin - if No (U.Entity) then - U.Entity := S; - U.Uname := E_Unit_Name; - U.Unum := Get_Source_Unit (S); - end if; - end; - - return True; - else - return False; - end if; - end Is_RTE; - - ---------------------------- - -- Is_Text_IO_Kludge_Unit -- - ---------------------------- - - function Is_Text_IO_Kludge_Unit (Nam : Node_Id) return Boolean is - Prf : Node_Id; - Sel : Node_Id; - - begin - if Nkind (Nam) /= N_Expanded_Name then - return False; - end if; - - Prf := Prefix (Nam); - Sel := Selector_Name (Nam); - - if Nkind (Sel) /= N_Expanded_Name - or else Nkind (Prf) /= N_Identifier - or else Chars (Prf) /= Name_Ada - then - return False; - end if; - - Prf := Prefix (Sel); - Sel := Selector_Name (Sel); - - return - Nkind (Prf) = N_Identifier - and then - (Chars (Prf) = Name_Text_IO or else Chars (Prf) = Name_Wide_Text_IO) - and then - Nkind (Sel) = N_Identifier - and then - Chars (Sel) in Text_IO_Package_Name; - - end Is_Text_IO_Kludge_Unit; - - --------------- - -- Load_Fail -- - --------------- - - procedure Load_Fail (S : String; U_Id : RTU_Id; Ent_Name : String := "") is - begin - Set_Standard_Error; - - Write_Str ("fatal error: run-time library configuration error"); - Write_Eol; - - if Ent_Name /= "" then - Write_Str ("cannot locate """); - - -- Copy name skipping initial RE_ or RO_XX characters - - if Ent_Name (1 .. 2) = "RE" then - for J in 4 .. Ent_Name'Length loop - Name_Buffer (J - 3) := Ent_Name (J); - end loop; - else - for J in 7 .. Ent_Name'Length loop - Name_Buffer (J - 6) := Ent_Name (J); - end loop; - end if; - - Name_Len := Ent_Name'Length - 3; - Set_Casing (Mixed_Case); - Write_Str (Name_Buffer (1 .. Name_Len)); - Write_Str (""" in file """); - - else - Write_Str ("cannot load file """); - end if; - - Write_Name - (Get_File_Name (RT_Unit_Table (U_Id).Uname, Subunit => False)); - Write_Str (""" ("); - Write_Str (S); - Write_Char (')'); - Write_Eol; - Set_Standard_Output; - raise Unrecoverable_Error; - end Load_Fail; - - -------------- - -- Load_RTU -- - -------------- - - procedure Load_RTU (U_Id : RTU_Id; Use_Setting : Boolean := False) is - Loaded : Boolean; - U : RT_Unit_Table_Record renames RT_Unit_Table (U_Id); - Priv_Par : Elist_Id := New_Elmt_List; - Lib_Unit : Node_Id; - - procedure Save_Private_Visibility; - -- If the current unit is the body of child unit or the spec of a - -- private child unit, the private declarations of the parent (s) - -- are visible. If the unit to be loaded is another public sibling, - -- its compilation will affect the visibility of the common ancestors. - -- Indicate those that must be restored. - - procedure Restore_Private_Visibility; - -- Restore the visibility of ancestors after compiling RTU. - - -------------------------------- - -- Restore_Private_Visibility -- - -------------------------------- - - procedure Restore_Private_Visibility is - E_Par : Elmt_Id; - - begin - E_Par := First_Elmt (Priv_Par); - - while Present (E_Par) loop - if not In_Private_Part (Node (E_Par)) then - Install_Private_Declarations (Node (E_Par)); - end if; - - Next_Elmt (E_Par); - end loop; - end Restore_Private_Visibility; - - ----------------------------- - -- Save_Private_Visibility -- - ----------------------------- - - procedure Save_Private_Visibility is - Par : Entity_Id; - - begin - Par := Scope (Current_Scope); - - while Present (Par) - and then Par /= Standard_Standard - loop - if Ekind (Par) = E_Package - and then Is_Compilation_Unit (Par) - and then In_Private_Part (Par) - then - Append_Elmt (Par, Priv_Par); - end if; - - Par := Scope (Par); - end loop; - end Save_Private_Visibility; - - -- Start of processing for Load_RTU - - begin - -- Nothing to do if unit is already loaded - - if Present (U.Entity) then - return; - end if; - - -- Otherwise we need to load the unit, First build unit name - -- from the enumeration literal name in type RTU_Id. - - U.Uname := Get_Unit_Name (U_Id); - U.Withed := False; - Loaded := Is_Loaded (U.Uname); - - -- Now do the load call, note that setting Error_Node to Empty is - -- a signal to Load_Unit that we will regard a failure to find the - -- file as a fatal error, and that it should not output any kind - -- of diagnostics, since we will take care of it here. - - U.Unum := - Load_Unit - (Load_Name => U.Uname, - Required => False, - Subunit => False, - Error_Node => Empty); - - if U.Unum = No_Unit then - Load_Fail ("unit not found", U_Id); - - elsif Fatal_Error (U.Unum) then - Load_Fail ("parser errors", U_Id); - end if; - - -- Make sure that the unit is analyzed - - declare - Was_Analyzed : Boolean := Analyzed (Cunit (Current_Sem_Unit)); - - begin - -- Pretend that the current unit is analysed, in case it is - -- System or some such. This allows us to put some declarations, - -- such as exceptions and packed arrays of Boolean, into System - -- even though expanding them requires System... - - -- This is a bit odd but works fine. If the RTS unit does not depend - -- in any way on the current unit, then it never gets back into the - -- current unit's tree, and the change we make to the current unit - -- tree is never noticed by anyone (it is undone in a moment). That - -- is the normal situation. - - -- If the RTS Unit *does* depend on the current unit, for instance, - -- when you are compiling System, then you had better have finished - -- Analyzing the part of System that is depended on before you try - -- to load the RTS Unit. This means having the System ordered in an - -- appropriate manner. - - Set_Analyzed (Cunit (Current_Sem_Unit), True); - - if not Analyzed (Cunit (U.Unum)) then - - Save_Private_Visibility; - Semantics (Cunit (U.Unum)); - Restore_Private_Visibility; - - if Fatal_Error (U.Unum) then - Load_Fail ("semantic errors", U_Id); - end if; - end if; - - -- Undo the pretence - - Set_Analyzed (Cunit (Current_Sem_Unit), Was_Analyzed); - end; - - Lib_Unit := Unit (Cunit (U.Unum)); - U.Entity := Defining_Entity (Lib_Unit); - - if Use_Setting then - Set_Is_Potentially_Use_Visible (U.Entity, True); - end if; - end Load_RTU; - - -------------- - -- RE_Chars -- - -------------- - - function RE_Chars (E : RE_Id) return Name_Id is - RE_Name_Chars : constant String := RE_Id'Image (E); - - begin - -- Copy name skipping initial RE_ or RO_XX characters - - if RE_Name_Chars (1 .. 2) = "RE" then - for J in 4 .. RE_Name_Chars'Last loop - Name_Buffer (J - 3) := Fold_Lower (RE_Name_Chars (J)); - end loop; - - Name_Len := RE_Name_Chars'Length - 3; - - else - for J in 7 .. RE_Name_Chars'Last loop - Name_Buffer (J - 6) := Fold_Lower (RE_Name_Chars (J)); - end loop; - - Name_Len := RE_Name_Chars'Length - 6; - end if; - - return Name_Find; - end RE_Chars; - - --------- - -- RTE -- - --------- - - function RTE (E : RE_Id) return Entity_Id is - U_Id : constant RTU_Id := RE_Unit_Table (E); - U : RT_Unit_Table_Record renames RT_Unit_Table (U_Id); - - Ent : Entity_Id; - Lib_Unit : Node_Id; - Pkg_Ent : Entity_Id; - Ename : Name_Id; - - Ravenscar : constant Boolean := Restricted_Profile; - - procedure Check_RPC; - -- Reject programs that make use of distribution features not supported - -- on the current target. On such targets (VMS, Vxworks, others?) we - -- only provide a minimal body for System.Rpc that only supplies an - -- implementation of partition_id. - - function Find_Local_Entity (E : RE_Id) return Entity_Id; - -- This function is used when entity E is in this compilation's main - -- unit. It gets the value from the already compiled declaration. - - function Make_Unit_Name (N : Node_Id) return Node_Id; - -- If the unit is a child unit, build fully qualified name for use - -- in with_clause. - - --------------- - -- Check_RPC -- - --------------- - - procedure Check_RPC is - Body_Name : Unit_Name_Type; - Unum : Unit_Number_Type; - - begin - -- Bypass this check if debug flag -gnatdR set - - if Debug_Flag_RR then - return; - end if; - - -- Otherwise we need the check if we are going after one of - -- the critical entities in System.RPC in stubs mode. - - if (Distribution_Stub_Mode = Generate_Receiver_Stub_Body - or else - Distribution_Stub_Mode = Generate_Caller_Stub_Body) - and then (E = RE_Do_Rpc - or else E = RE_Do_Apc - or else E = RE_Params_Stream_Type - or else E = RE_RPC_Receiver) - then - -- Load body of System.Rpc, and abort if this is the body that is - -- provided by GNAT, for which these features are not supported - -- on current target. We identify the gnat body by the presence - -- of a local entity called Gnat in the first declaration. - - Lib_Unit := Unit (Cunit (U.Unum)); - Body_Name := Get_Body_Name (Get_Unit_Name (Lib_Unit)); - Unum := - Load_Unit - (Load_Name => Body_Name, - Required => False, - Subunit => False, - Error_Node => Empty, - Renamings => True); - - if Unum /= No_Unit then - declare - Decls : List_Id := Declarations (Unit (Cunit (Unum))); - - begin - if Present (Decls) - and then Nkind (First (Decls)) = N_Object_Declaration - and then - Chars (Defining_Identifier (First (Decls))) = Name_Gnat - then - Set_Standard_Error; - Write_Str ("distribution feature not supported"); - Write_Eol; - raise Unrecoverable_Error; - end if; - end; - end if; - end if; - end Check_RPC; - - ------------------------ - -- Find_System_Entity -- - ------------------------ - - function Find_Local_Entity (E : RE_Id) return Entity_Id is - RE_Str : String renames RE_Id'Image (E); - Ent : Entity_Id; - - Save_Nam : constant String := Name_Buffer (1 .. Name_Len); - -- Save name buffer and length over call - - begin - Name_Len := Natural'Max (0, RE_Str'Length - 3); - Name_Buffer (1 .. Name_Len) := - RE_Str (RE_Str'First + 3 .. RE_Str'Last); - - Ent := Entity_Id (Get_Name_Table_Info (Name_Find)); - - Name_Len := Save_Nam'Length; - Name_Buffer (1 .. Name_Len) := Save_Nam; - - return Ent; - end Find_Local_Entity; - - -------------------- - -- Make_Unit_Name -- - -------------------- - - function Make_Unit_Name (N : Node_Id) return Node_Id is - Nam : Node_Id; - Scop : Entity_Id; - - begin - Nam := New_Reference_To (U.Entity, Standard_Location); - Scop := Scope (U.Entity); - - if Nkind (N) = N_Defining_Program_Unit_Name then - while Scop /= Standard_Standard loop - Nam := - Make_Expanded_Name (Standard_Location, - Chars => Chars (U.Entity), - Prefix => New_Reference_To (Scop, Standard_Location), - Selector_Name => Nam); - Set_Entity (Nam, U.Entity); - - Scop := Scope (Scop); - end loop; - end if; - - return Nam; - end Make_Unit_Name; - - -- Start of processing for RTE - - begin - -- Check violation of no run time and ravenscar mode - - if No_Run_Time - and then not OK_To_Use_In_No_Run_Time_Mode (U_Id) - then - if not Ravenscar - or else not OK_To_Use_In_Ravenscar_Mode (U_Id) - then - Disallow_In_No_Run_Time_Mode (Current_Error_Node); - return Empty; - end if; - end if; - - -- Doing a rtsfind in system.ads is special, as we cannot do this - -- when compiling System itself. So if we are compiling system then - -- we should already have acquired and processed the declaration - -- of the entity. The test is to see if this compilation's main unit - -- is System. If so, return the value from the already compiled - -- declaration and otherwise do a regular find. - - -- Not pleasant, but these kinds of annoying recursion when - -- writing an Ada compiler in Ada have to be broken somewhere! - - if Present (Main_Unit_Entity) - and then Chars (Main_Unit_Entity) = Name_System - and then Analyzed (Main_Unit_Entity) - and then not Is_Child_Unit (Main_Unit_Entity) - then - return Find_Local_Entity (E); - end if; - - -- Load unit if unit not previously loaded - - if No (RE_Table (E)) then - Load_RTU (U_Id); - Lib_Unit := Unit (Cunit (U.Unum)); - - -- In the subprogram case, we are all done, the entity we want - -- is the entity for the subprogram itself. Note that we do not - -- bother to check that it is the entity that was requested. - -- the only way that could fail to be the case is if runtime is - -- hopelessly misconfigured, and it isn't worth testing for this. - - if Nkind (Lib_Unit) = N_Subprogram_Declaration then - RE_Table (E) := U.Entity; - - -- Otherwise we must have the package case, and here we have to - -- search the package entity chain for the entity we want. The - -- entity we want must be present in this chain, or we have a - -- misconfigured runtime. - - else - pragma Assert (Nkind (Lib_Unit) = N_Package_Declaration); - Ename := RE_Chars (E); - - Pkg_Ent := First_Entity (U.Entity); - - while Present (Pkg_Ent) loop - if Ename = Chars (Pkg_Ent) then - RE_Table (E) := Pkg_Ent; - Check_RPC; - goto Found; - end if; - - Next_Entity (Pkg_Ent); - end loop; - - -- If we didn't find the unit we want, something is wrong - -- although in no run time mode, we already gave a suitable - -- message, and so we simply return Empty, and the caller must - -- be prepared to handle this if the RTE call is otherwise - -- possible in high integrity mode. - - if No_Run_Time - and then not OK_To_Use_In_No_Run_Time_Mode (U_Id) - then - return Empty; - - else - Load_Fail ("entity not in package", U_Id, RE_Id'Image (E)); - raise Program_Error; - end if; - end if; - end if; - - -- See if we have to generate a with for this entity. We generate - -- a with if the current unit is part of the extended main code - -- unit, and if we have not already added the with. The with is - -- added to the appropriate unit (the current one). - - <> - if (not U.Withed) - and then - In_Extended_Main_Code_Unit (Cunit_Entity (Current_Sem_Unit)) - then - U.Withed := True; - - declare - Withn : Node_Id; - Lib_Unit : Node_Id; - - begin - Lib_Unit := Unit (Cunit (U.Unum)); - Withn := - Make_With_Clause (Standard_Location, - Name => - Make_Unit_Name - (Defining_Unit_Name (Specification (Lib_Unit)))); - Set_Library_Unit (Withn, Cunit (U.Unum)); - Set_Corresponding_Spec (Withn, U.Entity); - Set_First_Name (Withn, True); - Set_Implicit_With (Withn, True); - - Mark_Rewrite_Insertion (Withn); - Append (Withn, Context_Items (Cunit (Current_Sem_Unit))); - end; - end if; - - -- We can now obtain the entity. Check that the no run time condition - -- is not violated. Note that we do not signal the error if we detect - -- it in a runtime unit. This can only arise if the user explicitly - -- with'ed the runtime unit (or another runtime unit that uses it - -- transitively), or if some acceptable (e.g. inlined) entity is - -- fetched from a unit, some of whose other routines or entities - -- violate the conditions. In the latter case, it does not matter, - -- since we won't be using those entities. - - Ent := RE_Table (E); - - if Is_Subprogram (Ent) - and then not Is_Inlined (Ent) - and then Sloc (Current_Error_Node) /= Standard_Location - and then not - Is_Predefined_File_Name - (Unit_File_Name (Get_Source_Unit (Current_Error_Node))) - and then not Ravenscar - then - Disallow_In_No_Run_Time_Mode (Current_Error_Node); - end if; - - return Ent; - end RTE; - - -------------------- - -- Text_IO_Kludge -- - -------------------- - - procedure Text_IO_Kludge (Nam : Node_Id) is - Chrs : Name_Id; - - type Name_Map_Type is array (Text_IO_Package_Name) of RTU_Id; - - Name_Map : Name_Map_Type := Name_Map_Type'( - Name_Decimal_IO => Ada_Text_IO_Decimal_IO, - Name_Enumeration_IO => Ada_Text_IO_Enumeration_IO, - Name_Fixed_IO => Ada_Text_IO_Fixed_IO, - Name_Float_IO => Ada_Text_IO_Float_IO, - Name_Integer_IO => Ada_Text_IO_Integer_IO, - Name_Modular_IO => Ada_Text_IO_Modular_IO); - - Wide_Name_Map : Name_Map_Type := Name_Map_Type'( - Name_Decimal_IO => Ada_Wide_Text_IO_Decimal_IO, - Name_Enumeration_IO => Ada_Wide_Text_IO_Enumeration_IO, - Name_Fixed_IO => Ada_Wide_Text_IO_Fixed_IO, - Name_Float_IO => Ada_Wide_Text_IO_Float_IO, - Name_Integer_IO => Ada_Wide_Text_IO_Integer_IO, - Name_Modular_IO => Ada_Wide_Text_IO_Modular_IO); - - begin - -- Nothing to do if name is not identifier or a selected component - -- whose selector_name is not an identifier. - - if Nkind (Nam) = N_Identifier then - Chrs := Chars (Nam); - - elsif Nkind (Nam) = N_Selected_Component - and then Nkind (Selector_Name (Nam)) = N_Identifier - then - Chrs := Chars (Selector_Name (Nam)); - - else - return; - end if; - - -- Nothing to do if name is not one of the Text_IO subpackages - -- Otherwise look through loaded units, and if we find Text_IO - -- or Wide_Text_IO already loaded, then load the proper child. - - if Chrs in Text_IO_Package_Name then - for U in Main_Unit .. Last_Unit loop - Get_Name_String (Unit_File_Name (U)); - - if Name_Len = 12 then - - -- Here is where we do the loads if we find one of the - -- units Ada.Text_IO or Ada.Wide_Text_IO. An interesting - -- detail is that these units may already be used (i.e. - -- their In_Use flags may be set). Normally when the In_Use - -- flag is set, the Is_Potentially_Use_Visible flag of all - -- entities in the package is set, but the new entity we - -- are mysteriously adding was not there to have its flag - -- set at the time. So that's why we pass the extra parameter - -- to RTU_Find, to make sure the flag does get set now. - -- Given that those generic packages are in fact child units, - -- we must indicate that they are visible. - - if Name_Buffer (1 .. 12) = "a-textio.ads" then - Load_RTU (Name_Map (Chrs), In_Use (Cunit_Entity (U))); - Set_Is_Visible_Child_Unit - (RT_Unit_Table (Name_Map (Chrs)).Entity); - - elsif Name_Buffer (1 .. 12) = "a-witeio.ads" then - Load_RTU (Wide_Name_Map (Chrs), In_Use (Cunit_Entity (U))); - Set_Is_Visible_Child_Unit - (RT_Unit_Table (Wide_Name_Map (Chrs)).Entity); - end if; - end if; - end loop; - end if; - end Text_IO_Kludge; - -end Rtsfind;