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Diffstat (limited to 'gcc/ada/mlib-tgt-vms.adb')
| -rw-r--r-- | gcc/ada/mlib-tgt-vms.adb | 703 |
1 files changed, 703 insertions, 0 deletions
diff --git a/gcc/ada/mlib-tgt-vms.adb b/gcc/ada/mlib-tgt-vms.adb new file mode 100644 index 00000000000..6db0dccb9dc --- /dev/null +++ b/gcc/ada/mlib-tgt-vms.adb @@ -0,0 +1,703 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- M L I B . T G T -- +-- (VMS Version) -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2003-2004, 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. -- +-- -- +------------------------------------------------------------------------------ + +-- This is the VMS version of the body + +with Ada.Characters.Handling; use Ada.Characters.Handling; + +with GNAT.Directory_Operations; use GNAT.Directory_Operations; +with GNAT.OS_Lib; use GNAT.OS_Lib; + +with MLib.Fil; +with MLib.Utl; +with Namet; use Namet; +with Opt; use Opt; +with Output; use Output; +with Prj.Com; +with System; use System; +with System.Case_Util; use System.Case_Util; + +package body MLib.Tgt is + + use GNAT; + + Empty_Argument_List : aliased Argument_List := (1 .. 0 => null); + Additional_Objects : Argument_List_Access := Empty_Argument_List'Access; + -- Used to add the generated auto-init object files for auto-initializing + -- stand-alone libraries. + + Macro_Name : constant String := "mcr gnu:[bin]gcc -c -x assembler"; + -- The name of the command to invoke the macro-assembler + + VMS_Options : Argument_List := (1 .. 1 => null); + + Gnatsym_Name : constant String := "gnatsym"; + + Gnatsym_Path : String_Access; + + Arguments : Argument_List_Access := null; + Last_Argument : Natural := 0; + + Success : Boolean := False; + + Shared_Libgcc : aliased String := "-shared-libgcc"; + + No_Shared_Libgcc_Switch : aliased Argument_List := (1 .. 0 => null); + Shared_Libgcc_Switch : aliased Argument_List := + (1 => Shared_Libgcc'Access); + Link_With_Shared_Libgcc : Argument_List_Access := + No_Shared_Libgcc_Switch'Access; + + ------------------------------ + -- Target dependent section -- + ------------------------------ + + function Popen (Command, Mode : System.Address) return System.Address; + pragma Import (C, Popen); + + function Pclose (File : System.Address) return Integer; + pragma Import (C, Pclose); + + --------------------- + -- Archive_Builder -- + --------------------- + + function Archive_Builder return String is + begin + return "ar"; + end Archive_Builder; + + ----------------------------- + -- Archive_Builder_Options -- + ----------------------------- + + function Archive_Builder_Options return String_List_Access is + begin + return new String_List'(1 => new String'("cr")); + end Archive_Builder_Options; + + ----------------- + -- Archive_Ext -- + ----------------- + + function Archive_Ext return String is + begin + return "olb"; + end Archive_Ext; + + --------------------- + -- Archive_Indexer -- + --------------------- + + function Archive_Indexer return String is + begin + return "ranlib"; + end Archive_Indexer; + + --------------------------- + -- Build_Dynamic_Library -- + --------------------------- + + procedure Build_Dynamic_Library + (Ofiles : Argument_List; + Foreign : Argument_List; + Afiles : Argument_List; + Options : Argument_List; + Interfaces : Argument_List; + Lib_Filename : String; + Lib_Dir : String; + Symbol_Data : Symbol_Record; + Driver_Name : Name_Id := No_Name; + Lib_Address : String := ""; + Lib_Version : String := ""; + Relocatable : Boolean := False; + Auto_Init : Boolean := False) + is + pragma Unreferenced (Foreign); + pragma Unreferenced (Afiles); + pragma Unreferenced (Lib_Address); + pragma Unreferenced (Relocatable); + + Lib_File : constant String := + Lib_Dir & Directory_Separator & "lib" & + Fil.Ext_To (Lib_Filename, DLL_Ext); + + Opts : Argument_List := Options; + Last_Opt : Natural := Opts'Last; + Opts2 : Argument_List (Options'Range); + Last_Opt2 : Natural := Opts2'First - 1; + + Inter : constant Argument_List := Interfaces; + + function Is_Interface (Obj_File : String) return Boolean; + -- For a Stand-Alone Library, returns True if Obj_File is the object + -- file name of an interface of the SAL. + -- For other libraries, always return True. + + function Option_File_Name return String; + -- Returns Symbol_File, if not empty. Otherwise, returns "symvec.opt" + + function Version_String return String; + -- Returns Lib_Version if not empty, otherwise returns "1". + -- Fails gnatmake if Lib_Version is not the image of a positive number. + + ------------------ + -- Is_Interface -- + ------------------ + + function Is_Interface (Obj_File : String) return Boolean is + ALI : constant String := + Fil.Ext_To + (Filename => To_Lower (Base_Name (Obj_File)), + New_Ext => "ali"); + + begin + if Inter'Length = 0 then + return True; + + elsif ALI'Length > 2 and then + ALI (ALI'First .. ALI'First + 1) = "b$" + then + return True; + + else + for J in Inter'Range loop + if Inter (J).all = ALI then + return True; + end if; + end loop; + + return False; + end if; + end Is_Interface; + + ---------------------- + -- Option_File_Name -- + ---------------------- + + function Option_File_Name return String is + begin + if Symbol_Data.Symbol_File = No_Name then + return "symvec.opt"; + else + Get_Name_String (Symbol_Data.Symbol_File); + To_Lower (Name_Buffer (1 .. Name_Len)); + return Name_Buffer (1 .. Name_Len); + end if; + end Option_File_Name; + + -------------------- + -- Version_String -- + -------------------- + + function Version_String return String is + Version : Integer := 0; + begin + if Lib_Version = "" then + return "1"; + + else + begin + Version := Integer'Value (Lib_Version); + + if Version <= 0 then + raise Constraint_Error; + end if; + + return Lib_Version; + + exception + when Constraint_Error => + Fail ("illegal version """, Lib_Version, + """ (on VMS version must be a positive number)"); + return ""; + end; + end if; + end Version_String; + + Opt_File_Name : constant String := Option_File_Name; + Version : constant String := Version_String; + For_Linker_Opt : String_Access; + + -- Start of processing for Build_Dynamic_Library + + begin + -- Invoke gcc with -shared-libgcc, but only for GCC 3 or higher + + if GCC_Version >= 3 then + Link_With_Shared_Libgcc := Shared_Libgcc_Switch'Access; + else + Link_With_Shared_Libgcc := No_Shared_Libgcc_Switch'Access; + end if; + + -- If option file name does not ends with ".opt", append "/OPTIONS" + -- to its specification for the VMS linker. + + if Opt_File_Name'Length > 4 + and then + Opt_File_Name (Opt_File_Name'Last - 3 .. Opt_File_Name'Last) = ".opt" + then + For_Linker_Opt := new String'("--for-linker=" & Opt_File_Name); + else + For_Linker_Opt := + new String'("--for-linker=" & Opt_File_Name & "/OPTIONS"); + end if; + + VMS_Options (VMS_Options'First) := For_Linker_Opt; + + for J in Inter'Range loop + To_Lower (Inter (J).all); + end loop; + + -- "gnatsym" is necessary for building the option file + + if Gnatsym_Path = null then + Gnatsym_Path := OS_Lib.Locate_Exec_On_Path (Gnatsym_Name); + + if Gnatsym_Path = null then + Fail (Gnatsym_Name, " not found in path"); + end if; + end if; + + -- For auto-initialization of a stand-alone library, we create + -- a macro-assembly file and we invoke the macro-assembler. + + if Auto_Init then + declare + Macro_File_Name : constant String := Lib_Filename & "$init.asm"; + Macro_File : File_Descriptor; + Init_Proc : String := Lib_Filename & "INIT"; + Popen_Result : System.Address; + Pclose_Result : Integer; + Len : Natural; + OK : Boolean := True; + + Command : constant String := + Macro_Name & " " & Macro_File_Name & ASCII.NUL; + -- The command to invoke the assembler on the generated auto-init + -- assembly file. + + Mode : constant String := "r" & ASCII.NUL; + -- The mode for the invocation of Popen + + begin + To_Upper (Init_Proc); + + if Verbose_Mode then + Write_Str ("Creating auto-init assembly file """); + Write_Str (Macro_File_Name); + Write_Line (""""); + end if; + + -- Create and write the auto-init assembly file + + declare + First_Line : constant String := + ASCII.HT & ".section LIB$INITIALIZE,GBL,NOWRT" & + ASCII.LF; + Second_Line : constant String := + ASCII.HT & ".long " & Init_Proc & ASCII.LF; + -- First and second lines of the auto-init assembly file + + begin + Macro_File := Create_File (Macro_File_Name, Text); + OK := Macro_File /= Invalid_FD; + + if OK then + Len := Write + (Macro_File, First_Line (First_Line'First)'Address, + First_Line'Length); + OK := Len = First_Line'Length; + end if; + + if OK then + Len := Write + (Macro_File, Second_Line (Second_Line'First)'Address, + Second_Line'Length); + OK := Len = Second_Line'Length; + end if; + + if OK then + Close (Macro_File, OK); + end if; + + if not OK then + Fail ("creation of auto-init assembly file """, + Macro_File_Name, """ failed"); + end if; + end; + + -- Invoke the macro-assembler + + if Verbose_Mode then + Write_Str ("Assembling auto-init assembly file """); + Write_Str (Macro_File_Name); + Write_Line (""""); + end if; + + Popen_Result := Popen (Command (Command'First)'Address, + Mode (Mode'First)'Address); + + if Popen_Result = Null_Address then + Fail ("assembly of auto-init assembly file """, + Macro_File_Name, """ failed"); + end if; + + -- Wait for the end of execution of the macro-assembler + + Pclose_Result := Pclose (Popen_Result); + + if Pclose_Result < 0 then + Fail ("assembly of auto init assembly file """, + Macro_File_Name, """ failed"); + end if; + + -- Add the generated object file to the list of objects to be + -- included in the library. + + Additional_Objects := + new Argument_List' + (1 => new String'(Lib_Filename & "$init.obj")); + end; + end if; + + -- Allocate the argument list and put the symbol file name, the + -- reference (if any) and the policy (if not autonomous). + + Arguments := new Argument_List (1 .. Ofiles'Length + 8); + + Last_Argument := 0; + + -- Verbosity + + if Verbose_Mode then + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'("-v"); + end if; + + -- Version number (major ID) + + if Lib_Version /= "" then + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'("-V"); + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'(Version); + end if; + + -- Symbol file + + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'("-s"); + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'(Opt_File_Name); + + -- Reference Symbol File + + if Symbol_Data.Reference /= No_Name then + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'("-r"); + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := + new String'(Get_Name_String (Symbol_Data.Reference)); + end if; + + -- Policy + + case Symbol_Data.Symbol_Policy is + when Autonomous => + null; + + when Compliant => + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'("-c"); + + when Controlled => + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'("-C"); + end case; + + -- Add each relevant object file + + for Index in Ofiles'Range loop + if Is_Interface (Ofiles (Index).all) then + Last_Argument := Last_Argument + 1; + Arguments (Last_Argument) := new String'(Ofiles (Index).all); + end if; + end loop; + + -- Spawn gnatsym + + Spawn (Program_Name => Gnatsym_Path.all, + Args => Arguments (1 .. Last_Argument), + Success => Success); + + if not Success then + Fail ("unable to create symbol file for library """, + Lib_Filename, """"); + end if; + + Free (Arguments); + + -- Move all the -l switches from Opts to Opts2 + + declare + Index : Natural := Opts'First; + Opt : String_Access; + + begin + while Index <= Last_Opt loop + Opt := Opts (Index); + + if Opt'Length > 2 and then + Opt (Opt'First .. Opt'First + 1) = "-l" + then + if Index < Last_Opt then + Opts (Index .. Last_Opt - 1) := + Opts (Index + 1 .. Last_Opt); + end if; + + Last_Opt := Last_Opt - 1; + + Last_Opt2 := Last_Opt2 + 1; + Opts2 (Last_Opt2) := Opt; + + else + Index := Index + 1; + end if; + end loop; + end; + + -- Invoke gcc to build the library + + Utl.Gcc + (Output_File => Lib_File, + Objects => Ofiles & Additional_Objects.all, + Options => VMS_Options, + Options_2 => Link_With_Shared_Libgcc.all & + Opts (Opts'First .. Last_Opt) & + Opts2 (Opts2'First .. Last_Opt2), + Driver_Name => Driver_Name); + + -- The auto-init object file need to be deleted, so that it will not + -- be included in the library as a regular object file, otherwise + -- it will be included twice when the library will be built next + -- time, which may lead to errors. + + if Auto_Init then + declare + Auto_Init_Object_File_Name : constant String := + Lib_Filename & "$init.obj"; + Disregard : Boolean; + + begin + if Verbose_Mode then + Write_Str ("deleting auto-init object file """); + Write_Str (Auto_Init_Object_File_Name); + Write_Line (""""); + end if; + + Delete_File (Auto_Init_Object_File_Name, Success => Disregard); + end; + end if; + end Build_Dynamic_Library; + + ------------------------- + -- Default_DLL_Address -- + ------------------------- + + function Default_DLL_Address return String is + begin + return ""; + end Default_DLL_Address; + + ------------- + -- DLL_Ext -- + ------------- + + function DLL_Ext return String is + begin + return "exe"; + end DLL_Ext; + + -------------------- + -- Dynamic_Option -- + -------------------- + + function Dynamic_Option return String is + begin + return "-shared"; + end Dynamic_Option; + + ------------------- + -- Is_Object_Ext -- + ------------------- + + function Is_Object_Ext (Ext : String) return Boolean is + begin + return Ext = ".obj"; + end Is_Object_Ext; + + -------------- + -- Is_C_Ext -- + -------------- + + function Is_C_Ext (Ext : String) return Boolean is + begin + return Ext = ".c"; + end Is_C_Ext; + + -------------------- + -- Is_Archive_Ext -- + -------------------- + + function Is_Archive_Ext (Ext : String) return Boolean is + begin + return Ext = ".olb" or else Ext = ".exe"; + end Is_Archive_Ext; + + ------------- + -- Libgnat -- + ------------- + + function Libgnat return String is + Libgnat_A : constant String := "libgnat.a"; + Libgnat_Olb : constant String := "libgnat.olb"; + + begin + Name_Len := Libgnat_A'Length; + Name_Buffer (1 .. Name_Len) := Libgnat_A; + + if Osint.Find_File (Name_Enter, Osint.Library) /= No_File then + return Libgnat_A; + + else + return Libgnat_Olb; + end if; + end Libgnat; + + ------------------------ + -- Library_Exists_For -- + ------------------------ + + function Library_Exists_For (Project : Project_Id) return Boolean is + begin + if not Projects.Table (Project).Library then + Fail ("INTERNAL ERROR: Library_Exists_For called " & + "for non library project"); + return False; + + else + declare + Lib_Dir : constant String := + Get_Name_String (Projects.Table (Project).Library_Dir); + Lib_Name : constant String := + Get_Name_String (Projects.Table (Project).Library_Name); + + begin + if Projects.Table (Project).Library_Kind = Static then + return Is_Regular_File + (Lib_Dir & Directory_Separator & "lib" & + Fil.Ext_To (Lib_Name, Archive_Ext)); + + else + return Is_Regular_File + (Lib_Dir & Directory_Separator & "lib" & + Fil.Ext_To (Lib_Name, DLL_Ext)); + end if; + end; + end if; + end Library_Exists_For; + + --------------------------- + -- Library_File_Name_For -- + --------------------------- + + function Library_File_Name_For (Project : Project_Id) return Name_Id is + begin + if not Projects.Table (Project).Library then + Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " & + "for non library project"); + return No_Name; + + else + declare + Lib_Name : constant String := + Get_Name_String (Projects.Table (Project).Library_Name); + + begin + Name_Len := 3; + Name_Buffer (1 .. Name_Len) := "lib"; + + if Projects.Table (Project).Library_Kind = Static then + Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext)); + + else + Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext)); + end if; + + return Name_Find; + end; + end if; + end Library_File_Name_For; + + ---------------- + -- Object_Ext -- + ---------------- + + function Object_Ext return String is + begin + return "obj"; + end Object_Ext; + + ---------------- + -- PIC_Option -- + ---------------- + + function PIC_Option return String is + begin + return ""; + end PIC_Option; + + ----------------------------------------------- + -- Standalone_Library_Auto_Init_Is_Supported -- + ----------------------------------------------- + + function Standalone_Library_Auto_Init_Is_Supported return Boolean is + begin + return True; + end Standalone_Library_Auto_Init_Is_Supported; + + --------------------------- + -- Support_For_Libraries -- + --------------------------- + + function Support_For_Libraries return Library_Support is + begin + return Full; + end Support_For_Libraries; + +end MLib.Tgt; |