-- --
-- B o d y --
-- --
--- --
--- Copyright (C) 1996-2002 Free Software Foundation, Inc. --
+-- Copyright (C) 1996-2009, 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- --
+-- ware Foundation; either version 3, 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. --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the 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. --
-- --
------------------------------------------------------------------------------
-- Gnatlink usage: please consult the gnat documentation
-with Ada.Exceptions; use Ada.Exceptions;
with ALI; use ALI;
+with Csets;
with Gnatvsn; use Gnatvsn;
with Hostparm;
+with Indepsw; use Indepsw;
with Namet; use Namet;
+with Opt;
with Osint; use Osint;
with Output; use Output;
+with Snames;
with Switch; use Switch;
with System; use System;
with Table;
+with Targparm; use Targparm;
with Types;
with Ada.Command_Line; use Ada.Command_Line;
-with GNAT.OS_Lib; use GNAT.OS_Lib;
+with Ada.Exceptions; use Ada.Exceptions;
+
+with System.OS_Lib; use System.OS_Lib;
+with System.CRTL;
+
with Interfaces.C_Streams; use Interfaces.C_Streams;
+with Interfaces.C.Strings; use Interfaces.C.Strings;
procedure Gnatlink is
+ pragma Ident (Gnatvsn.Gnat_Static_Version_String);
+
+ Shared_Libgcc_String : constant String := "-shared-libgcc";
+ Shared_Libgcc : constant String_Access :=
+ new String'(Shared_Libgcc_String);
+ -- Used to invoke gcc when the binder is invoked with -shared
- pragma Ident (Gnat_Version_String);
+ Static_Libgcc_String : constant String := "-static-libgcc";
+ Static_Libgcc : constant String_Access :=
+ new String'(Static_Libgcc_String);
+ -- Used to invoke gcc when shared libs are not used
package Gcc_Linker_Options is new Table.Table (
Table_Component_Type => String_Access,
Table_Index_Type => Integer,
Table_Low_Bound => 1,
Table_Initial => 4096,
- Table_Increment => 2,
+ Table_Increment => 100,
Table_Name => "Gnatlink.Libpath");
-- Comments needed ???
-- important because on the GNU linker command line the -L switch is not
-- used to look for objects files but -L switch is used to look for
-- objects listed in the response file. This is not a problem with the
- -- applications objects as they are specified with a fullname.
+ -- applications objects as they are specified with a full name.
package Response_File_Objects is new Table.Table (
Table_Component_Type => String_Access,
-- This table collects the arguments to be passed to compile the binder
-- generated file.
- subtype chars_ptr is System.Address;
-
- Gcc : String_Access := Program_Name ("gcc");
+ Gcc : String_Access := Program_Name ("gcc", "gnatlink");
- Read_Mode : constant String := "r" & ASCII.Nul;
+ Read_Mode : constant String := "r" & ASCII.NUL;
- Begin_Info : String := "-- BEGIN Object file/option list";
- End_Info : String := "-- END Object file/option list ";
+ Begin_Info : String := "-- BEGIN Object file/option list";
+ End_Info : String := "-- END Object file/option list ";
-- Note: above lines are modified in C mode, see option processing
Gcc_Path : String_Access;
Linker_Path : String_Access;
-
Output_File_Name : String_Access;
Ali_File_Name : String_Access;
Binder_Spec_Src_File : String_Access;
-- Temporary file used by linker to pass list of object files on
-- certain systems with limitations on size of arguments.
+ Lname : String_Access := null;
+ -- File used by linker for CLI target, used to concatenate all .il files
+ -- when the command line passed to ilasm is too long
+
Debug_Flag_Present : Boolean := False;
Verbose_Mode : Boolean := False;
Very_Verbose_Mode : Boolean := False;
Ada_Bind_File : Boolean := True;
-- Set to True if bind file is generated in Ada
- Standard_Gcc : Boolean := True;
+ Standard_Gcc : Boolean := True;
Compile_Bind_File : Boolean := True;
-- Set to False if bind file is not to be compiled
+ Create_Map_File : Boolean := False;
+ -- Set to True by switch -M. The map file name is derived from
+ -- the ALI file name (mainprog.ali => mainprog.map).
+
Object_List_File_Supported : Boolean;
- pragma Import (C, Object_List_File_Supported, "objlist_file_supported");
+ for Object_List_File_Supported'Size use Character'Size;
+ pragma Import
+ (C, Object_List_File_Supported, "__gnat_objlist_file_supported");
-- Predicate indicating whether the linker has an option whereby the
-- names of object files can be passed to the linker in a file.
Object_List_File_Required : Boolean := False;
-- Set to True to force generation of a response file
- function Base_Name (File_Name : in String) return String;
- -- Return just the file name part without the extension (if present).
+ function Base_Name (File_Name : String) return String;
+ -- Return just the file name part without the extension (if present)
- procedure Delete (Name : in String);
- -- Wrapper to unlink as status is ignored by this application.
+ procedure Delete (Name : String);
+ -- Wrapper to unlink as status is ignored by this application
- procedure Error_Msg (Message : in String);
+ procedure Error_Msg (Message : String);
-- Output the error or warning Message
- procedure Exit_With_Error (Error : in String);
- -- Output Error and exit program with a fatal condition.
+ procedure Exit_With_Error (Error : String);
+ -- Output Error and exit program with a fatal condition
procedure Process_Args;
- -- Go through all the arguments and build option tables.
+ -- Go through all the arguments and build option tables
+
+ procedure Process_Binder_File (Name : String);
+ -- Reads the binder file and extracts linker arguments
- procedure Process_Binder_File (Name : in String);
- -- Reads the binder file and extracts linker arguments.
+ procedure Usage;
+ -- Display usage
- function Value (chars : chars_ptr) return String;
- -- Return NUL-terminated string chars as an Ada string.
+ procedure Write_Header;
+ -- Show user the program name, version and copyright
procedure Write_Usage;
- -- Show user the program options.
+ -- Show user the program options
---------------
-- Base_Name --
---------------
- function Base_Name (File_Name : in String) return String is
+ function Base_Name (File_Name : String) return String is
Findex1 : Natural;
Findex2 : Natural;
-- Delete --
------------
- procedure Delete (Name : in String) is
+ procedure Delete (Name : String) is
Status : int;
-
+ pragma Unreferenced (Status);
begin
Status := unlink (Name'Address);
+ -- Is it really right to ignore an error here ???
end Delete;
---------------
-- Error_Msg --
---------------
- procedure Error_Msg (Message : in String) is
+ procedure Error_Msg (Message : String) is
begin
Write_Str (Base_Name (Command_Name));
Write_Str (": ");
-- Exit_With_Error --
---------------------
- procedure Exit_With_Error (Error : in String) is
+ procedure Exit_With_Error (Error : String) is
begin
Error_Msg (Error);
Exit_Program (E_Fatal);
------------------
procedure Process_Args is
- Next_Arg : Integer;
+ Next_Arg : Integer;
+ Skip_Next : Boolean := False;
+ -- Set to true if the next argument is to be added into the list of
+ -- linker's argument without parsing it.
+
+ procedure Check_Version_And_Help is new Check_Version_And_Help_G (Usage);
+
+ -- Start of processing for Process_Args
begin
+ -- First, check for --version and --help
+
+ Check_Version_And_Help ("GNATLINK", "1995");
+
-- Loop through arguments of gnatlink command
Next_Arg := 1;
exit when Next_Arg > Argument_Count;
Process_One_Arg : declare
- Arg : String := Argument (Next_Arg);
+ Arg : constant String := Argument (Next_Arg);
begin
-- Case of argument which is a switch
-- We definitely need section by section comments here ???
- if Arg'Length /= 0 and then Arg (1) = '-' then
- if Arg'Length > 4
- and then Arg (2 .. 5) = "gnat"
- then
+ if Skip_Next then
+
+ -- This argument must not be parsed, just add it to the
+ -- list of linker's options.
+
+ Skip_Next := False;
+
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Arg);
+
+ elsif Arg'Length /= 0 and then Arg (1) = '-' then
+ if Arg'Length > 4 and then Arg (2 .. 5) = "gnat" then
Exit_With_Error
("invalid switch: """ & Arg & """ (gnat not needed here)");
end if;
- if Arg (2) = 'g'
+ if Arg = "-Xlinker" then
+
+ -- Next argument should be sent directly to the linker.
+ -- We do not want to parse it here.
+
+ Skip_Next := True;
+
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Arg);
+
+ elsif Arg (2) = 'g'
and then (Arg'Length < 5 or else Arg (2 .. 5) /= "gnat")
then
Debug_Flag_Present := True;
Binder_Options.Table (Binder_Options.Last) :=
Linker_Options.Table (Linker_Options.Last);
+ elsif Arg'Length >= 3 and then Arg (2) = 'M' then
+ declare
+ Switches : String_List_Access;
+
+ begin
+ Convert (Map_File, Arg (3 .. Arg'Last), Switches);
+
+ if Switches /= null then
+ for J in Switches'Range loop
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ Switches (J);
+ end loop;
+ end if;
+ end;
+
elsif Arg'Length = 2 then
case Arg (2) is
when 'A' =>
Ada_Bind_File := True;
- Begin_Info := "-- BEGIN Object file/option list";
- End_Info := "-- END Object file/option list ";
+ Begin_Info := "-- BEGIN Object file/option list";
+ End_Info := "-- END Object file/option list ";
when 'b' =>
Linker_Options.Increment_Last;
end if;
Get_Machine_Name : declare
- Name_Arg : String_Access :=
+ Name_Arg : constant String_Access :=
new String'(Argument (Next_Arg));
begin
when 'C' =>
Ada_Bind_File := False;
- Begin_Info := "/* BEGIN Object file/option list";
- End_Info := " END Object file/option list */";
+ Begin_Info := "/* BEGIN Object file/option list";
+ End_Info := " END Object file/option list */";
when 'f' =>
if Object_List_File_Supported then
("Object list file not supported on this target");
end if;
+ when 'M' =>
+ Create_Map_File := True;
+
when 'n' =>
Compile_Bind_File := False;
when 'o' =>
- Linker_Options.Increment_Last;
- Linker_Options.Table (Linker_Options.Last) :=
- new String'(Arg);
+ if VM_Target = CLI_Target then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'("/QUIET");
+
+ else
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Arg);
+ end if;
Next_Arg := Next_Arg + 1;
Exit_With_Error ("Missing argument for -o");
end if;
- Output_File_Name := new String'(Argument (Next_Arg));
+ if VM_Target = CLI_Target then
+ Output_File_Name :=
+ new String'("/OUTPUT=" & Argument (Next_Arg));
+ else
+ Output_File_Name :=
+ new String'(Argument (Next_Arg));
+ end if;
Linker_Options.Increment_Last;
Linker_Options.Table (Linker_Options.Last) :=
Output_File_Name;
+ when 'R' =>
+ Opt.Run_Path_Option := False;
+
when 'v' =>
-- Support "double" verbose mode. Second -v
elsif Arg (2) = 'B' then
Linker_Options.Increment_Last;
Linker_Options.Table (Linker_Options.Last) :=
- new String'(Arg);
+ new String'(Arg);
Binder_Options.Increment_Last;
Binder_Options.Table (Binder_Options.Last) :=
Linker_Options.Table (Linker_Options.Last);
elsif Arg'Length >= 7 and then Arg (1 .. 7) = "--LINK=" then
-
if Arg'Length = 7 then
Exit_With_Error ("Missing argument for --LINK=");
end if;
Linker_Path :=
- GNAT.OS_Lib.Locate_Exec_On_Path (Arg (8 .. Arg'Last));
+ System.OS_Lib.Locate_Exec_On_Path (Arg (8 .. Arg'Last));
if Linker_Path = null then
Exit_With_Error
elsif Arg'Length > 6 and then Arg (1 .. 6) = "--GCC=" then
declare
- Program_Args : Argument_List_Access :=
+ Program_Args : constant Argument_List_Access :=
Argument_String_To_List
(Arg (7 .. Arg'Last));
begin
- Gcc := new String'(Program_Args.all (1).all);
- Standard_Gcc := False;
+ if Program_Args.all (1).all /= Gcc.all then
+ Gcc := new String'(Program_Args.all (1).all);
+ Standard_Gcc := False;
+ end if;
-- Set appropriate flags for switches passed
for J in 2 .. Program_Args.all'Last loop
declare
- Arg : String := Program_Args.all (J).all;
- AF : Integer := Arg'First;
+ Arg : constant String := Program_Args.all (J).all;
+ AF : constant Integer := Arg'First;
begin
if Arg'Length /= 0 and then Arg (AF) = '-' then
end if;
end if;
+ -- Add directory to source search dirs so that
+ -- Get_Target_Parameters can find system.ads
+
+ if Arg (AF .. AF + 1) = "-I"
+ and then Arg'Length > 2
+ then
+ Add_Src_Search_Dir (Arg (AF + 2 .. Arg'Last));
+ end if;
+
-- Pass to gcc for compiling binder generated file
-- No use passing libraries, it will just generate
-- a warning
new String'(Arg);
end if;
- -- Pass to gcc for linking program.
+ -- Pass to gcc for linking program
Gcc_Linker_Options.Increment_Last;
Gcc_Linker_Options.Table
-- Here if argument is a file name rather than a switch
else
+ -- If explicit ali file, capture it
+
if Arg'Length > 4
and then Arg (Arg'Last - 3 .. Arg'Last) = ".ali"
then
Exit_With_Error ("cannot handle more than one ALI file");
end if;
- elsif Is_Regular_File (Arg & ".ali")
- and then Ali_File_Name = null
+ -- If target object file, record object file
+
+ elsif Arg'Length > Get_Target_Object_Suffix.all'Length
+ and then Arg
+ (Arg'Last -
+ Get_Target_Object_Suffix.all'Length + 1 .. Arg'Last)
+ = Get_Target_Object_Suffix.all
then
- Ali_File_Name := new String'(Arg & ".ali");
+ Linker_Objects.Increment_Last;
+ Linker_Objects.Table (Linker_Objects.Last) :=
+ new String'(Arg);
+
+ -- If host object file, record object file
+ -- e.g. accept foo.o as well as foo.obj on VMS target
elsif Arg'Length > Get_Object_Suffix.all'Length
and then Arg
Linker_Objects.Table (Linker_Objects.Last) :=
new String'(Arg);
+ -- If corresponding ali file exists, capture it
+
+ elsif Ali_File_Name = null
+ and then Is_Regular_File (Arg & ".ali")
+ then
+ Ali_File_Name := new String'(Arg & ".ali");
+
+ -- Otherwise assume this is a linker options entry, but
+ -- see below for interesting adjustment to this assumption.
+
else
Linker_Options.Increment_Last;
Linker_Options.Table (Linker_Options.Last) :=
new String'(Arg);
end if;
-
end if;
-
end Process_One_Arg;
Next_Arg := Next_Arg + 1;
Binder_Options.Increment_Last;
Binder_Options.Table (Binder_Options.Last) := new String'("-gnatws");
end if;
+
+ -- If we did not get an ali file at all, and we had at least one
+ -- linker option, then assume that was the intended ali file after
+ -- all, so that we get a nicer message later on.
+
+ if Ali_File_Name = null
+ and then Linker_Options.Last >= Linker_Options.First
+ then
+ Ali_File_Name :=
+ new String'(Linker_Options.Table (Linker_Options.First).all &
+ ".ali");
+ end if;
end Process_Args;
-------------------------
-- Process_Binder_File --
-------------------------
- procedure Process_Binder_File (Name : in String) is
- Fd : FILEs;
- Link_Bytes : Integer := 0;
- Link_Max : Integer;
- pragma Import (C, Link_Max, "link_max");
+ procedure Process_Binder_File (Name : String) is
+ Fd : FILEs;
+ -- Binder file's descriptor
+
+ Link_Bytes : Integer := 0;
+ -- Projected number of bytes for the linker command line
+
+ Link_Max : Integer;
+ pragma Import (C, Link_Max, "__gnat_link_max");
+ -- Maximum number of bytes on the command line supported by the OS
+ -- linker. Passed this limit the response file mechanism must be used
+ -- if supported.
+
+ Next_Line : String (1 .. 1000);
+ -- Current line value
+
+ Nlast : Integer;
+ Nfirst : Integer;
+ -- Current line slice (the slice does not contain line terminator)
+
+ Last : Integer;
+ -- Current line last character for shared libraries (without version)
+
+ Objs_Begin : Integer := 0;
+ -- First object file index in Linker_Objects table
+
+ Objs_End : Integer := 0;
+ -- Last object file index in Linker_Objects table
+
+ Status : int;
+ pragma Warnings (Off, Status);
+ -- Used for various Interfaces.C_Streams calls
+
+ Closing_Status : Boolean;
+ pragma Warnings (Off, Closing_Status);
+ -- For call to Close
+
+ GNAT_Static : Boolean := False;
+ -- Save state of -static option
+
+ GNAT_Shared : Boolean := False;
+ -- Save state of -shared option
+
+ Xlinker_Was_Previous : Boolean := False;
+ -- Indicate that "-Xlinker" was the option preceding the current
+ -- option. If True, then the current option is never suppressed.
- Next_Line : String (1 .. 1000);
- Nlast : Integer;
- Nfirst : Integer;
- Objs_Begin : Integer := 0;
- Objs_End : Integer := 0;
+ -- Rollback data
- Status : int;
- N : Integer;
+ -- These data items are used to store current binder file context.
+ -- The context is composed of the file descriptor position and the
+ -- current line together with the slice indexes (first and last
+ -- position) for this line. The rollback data are used by the
+ -- Store_File_Context and Rollback_File_Context routines below.
+ -- The file context mechanism interact only with the Get_Next_Line
+ -- call. For example:
- GNAT_Static : Boolean := False;
- -- Save state of -static option.
+ -- Store_File_Context;
+ -- Get_Next_Line;
+ -- Rollback_File_Context;
+ -- Get_Next_Line;
- GNAT_Shared : Boolean := False;
- -- Save state of -shared option.
+ -- Both Get_Next_Line calls above will read the exact same data from
+ -- the file. In other words, Next_Line, Nfirst and Nlast variables
+ -- will be set with the exact same values.
- Run_Path_Option_Ptr : Address;
- pragma Import (C, Run_Path_Option_Ptr, "run_path_option");
+ RB_File_Pos : long; -- File position
+ RB_Next_Line : String (1 .. 1000); -- Current line content
+ RB_Nlast : Integer; -- Slice last index
+ RB_Nfirst : Integer; -- Slice first index
+
+ Run_Path_Option_Ptr : Interfaces.C.Strings.chars_ptr;
+ pragma Import (C, Run_Path_Option_Ptr, "__gnat_run_path_option");
-- Pointer to string representing the native linker option which
-- specifies the path where the dynamic loader should find shared
-- libraries. Equal to null string if this system doesn't support it.
- Object_Library_Ext_Ptr : Address;
- pragma Import (C, Object_Library_Ext_Ptr, "object_library_extension");
+ Object_Library_Ext_Ptr : Interfaces.C.Strings.chars_ptr;
+ pragma Import
+ (C, Object_Library_Ext_Ptr, "__gnat_object_library_extension");
-- Pointer to string specifying the default extension for
-- object libraries, e.g. Unix uses ".a", VMS uses ".olb".
- Object_File_Option_Ptr : Address;
- pragma Import (C, Object_File_Option_Ptr, "object_file_option");
+ Object_File_Option_Ptr : Interfaces.C.Strings.chars_ptr;
+ pragma Import (C, Object_File_Option_Ptr, "__gnat_object_file_option");
-- Pointer to a string representing the linker option which specifies
-- the response file.
Using_GNU_Linker : Boolean;
- pragma Import (C, Using_GNU_Linker, "using_gnu_linker");
+ for Using_GNU_Linker'Size use Character'Size;
+ pragma Import (C, Using_GNU_Linker, "__gnat_using_gnu_linker");
-- Predicate indicating whether this target uses the GNU linker. In
-- this case we must output a GNU linker compatible response file.
+ Separate_Run_Path_Options : Boolean;
+ for Separate_Run_Path_Options'Size use Character'Size;
+ pragma Import
+ (C, Separate_Run_Path_Options, "__gnat_separate_run_path_options");
+ -- Whether separate rpath options should be emitted for each directory
+
+ Opening : aliased constant String := """";
+ Closing : aliased constant String := '"' & ASCII.LF;
+ -- Needed to quote object paths in object list files when GNU linker
+ -- is used.
+
procedure Get_Next_Line;
-- Read the next line from the binder file without the line
-- terminator.
- function Is_Option_Present (Opt : in String) return Boolean;
+ function Index (S, Pattern : String) return Natural;
+ -- Return the last occurrence of Pattern in S, or 0 if none
+
+ function Is_Option_Present (Opt : String) return Boolean;
-- Return true if the option Opt is already present in
-- Linker_Options table.
+ procedure Store_File_Context;
+ -- Store current file context, Fd position and current line data.
+ -- The file context is stored into the rollback data above (RB_*).
+ -- Store_File_Context can be called at any time, only the last call
+ -- will be used (i.e. this routine overwrites the file context).
+
+ procedure Rollback_File_Context;
+ -- Restore file context from rollback data. This routine must be called
+ -- after Store_File_Context. The binder file context will be restored
+ -- with the data stored by the last Store_File_Context call.
+
+ -------------------
+ -- Get_Next_Line --
+ -------------------
+
procedure Get_Next_Line is
Fchars : chars;
Nlast := Nlast - 1;
end Get_Next_Line;
- function Is_Option_Present (Opt : in String) return Boolean is
+ -----------
+ -- Index --
+ -----------
+
+ function Index (S, Pattern : String) return Natural is
+ Len : constant Natural := Pattern'Length;
+
+ begin
+ for J in reverse S'First .. S'Last - Len + 1 loop
+ if Pattern = S (J .. J + Len - 1) then
+ return J;
+ end if;
+ end loop;
+
+ return 0;
+ end Index;
+
+ -----------------------
+ -- Is_Option_Present --
+ -----------------------
+
+ function Is_Option_Present (Opt : String) return Boolean is
begin
for I in 1 .. Linker_Options.Last loop
return False;
end Is_Option_Present;
+ ---------------------------
+ -- Rollback_File_Context --
+ ---------------------------
+
+ procedure Rollback_File_Context is
+ begin
+ Next_Line := RB_Next_Line;
+ Nfirst := RB_Nfirst;
+ Nlast := RB_Nlast;
+ Status := fseek (Fd, RB_File_Pos, Interfaces.C_Streams.SEEK_SET);
+
+ if Status = -1 then
+ Exit_With_Error ("Error setting file position");
+ end if;
+ end Rollback_File_Context;
+
+ ------------------------
+ -- Store_File_Context --
+ ------------------------
+
+ procedure Store_File_Context is
+ use type System.CRTL.long;
+ begin
+ RB_Next_Line := Next_Line;
+ RB_Nfirst := Nfirst;
+ RB_Nlast := Nlast;
+ RB_File_Pos := ftell (Fd);
+
+ if RB_File_Pos = -1 then
+ Exit_With_Error ("Error getting file position");
+ end if;
+ end Store_File_Context;
+
-- Start of processing for Process_Binder_File
begin
Get_Next_Line;
-- Go to end when end line is reached (this will happen in
- -- No_Run_Time mode where no -L switches are generated)
+ -- High_Integrity_Mode where no -L switches are generated)
exit when Next_Line (Nfirst .. Nlast) = End_Info;
Linker_Objects.Table (Linker_Objects.Last) :=
new String'(Next_Line (Nfirst .. Nlast));
- Link_Bytes := Link_Bytes + Nlast - Nfirst;
+ Link_Bytes := Link_Bytes + Nlast - Nfirst + 2;
+ -- Nlast - Nfirst + 1, for the size, plus one for the space between
+ -- each arguments.
end loop;
Objs_End := Linker_Objects.Last;
+ -- Continue to compute the Link_Bytes, the linker options are part of
+ -- command line length.
+
+ Store_File_Context;
+
+ while Next_Line (Nfirst .. Nlast) /= End_Info loop
+ Link_Bytes := Link_Bytes + Nlast - Nfirst + 2;
+ Get_Next_Line;
+ end loop;
+
+ Rollback_File_Context;
+
-- On systems that have limitations on handling very long linker lines
-- we make use of the system linker option which takes a list of object
-- file names from a file instead of the command line itself. What we do
-- to read from a file instead of the command line is only triggered if
-- a conservative threshold is passed.
- if Object_List_File_Required
+ if VM_Target = CLI_Target
+ and then Link_Bytes > Link_Max
+ then
+ Lname := new String'("l~" & Base_Name (Ali_File_Name.all) & ".il");
+
+ for J in Objs_Begin .. Objs_End loop
+ Copy_File (Linker_Objects.Table (J).all, Lname.all,
+ Success => Closing_Status,
+ Mode => Append);
+ end loop;
+
+ -- Add the special objects list file option together with the name
+ -- of the temporary file to the objects file table.
+
+ Linker_Objects.Table (Objs_Begin) :=
+ new String'(Value (Object_File_Option_Ptr) & Lname.all);
+
+ -- The slots containing these object file names are then removed
+ -- from the objects table so they do not appear in the link. They
+ -- are removed by moving up the linker options and non-Ada object
+ -- files appearing after the Ada object list in the table.
+
+ declare
+ N : Integer;
+
+ begin
+ N := Objs_End - Objs_Begin + 1;
+
+ for J in Objs_End + 1 .. Linker_Objects.Last loop
+ Linker_Objects.Table (J - N + 1) := Linker_Objects.Table (J);
+ end loop;
+
+ Linker_Objects.Set_Last (Linker_Objects.Last - N + 1);
+ end;
+
+ elsif Object_List_File_Required
or else (Object_List_File_Supported
and then Link_Bytes > Link_Max)
then
Create_Temp_File (Tname_FD, Tname);
+ -- ??? File descriptor should be checked to not be Invalid_FD.
+ -- ??? Status of Write and Close operations should be checked, and
+ -- failure should occur if a status is wrong.
+
-- If target is using the GNU linker we must add a special header
-- and footer in the response file.
+
-- The syntax is : INPUT (object1.o object2.o ... )
+ -- Because the GNU linker does not like name with characters such
+ -- as '!', we must put the object paths between double quotes.
+
if Using_GNU_Linker then
declare
GNU_Header : aliased constant String := "INPUT (";
end if;
for J in Objs_Begin .. Objs_End loop
+
+ -- Opening quote for GNU linker
+
+ if Using_GNU_Linker then
+ Status := Write (Tname_FD, Opening'Address, 1);
+ end if;
+
Status := Write (Tname_FD, Linker_Objects.Table (J).all'Address,
- Linker_Objects.Table (J).all'Length);
- Status := Write (Tname_FD, ASCII.LF'Address, 1);
+ Linker_Objects.Table (J).all'Length);
+
+ -- Closing quote for GNU linker
+
+ if Using_GNU_Linker then
+ Status := Write (Tname_FD, Closing'Address, 2);
+
+ else
+ Status := Write (Tname_FD, ASCII.LF'Address, 1);
+ end if;
Response_File_Objects.Increment_Last;
Response_File_Objects.Table (Response_File_Objects.Last) :=
Linker_Objects.Table (J);
end loop;
- -- handle GNU linker response file footer.
+ -- Handle GNU linker response file footer
if Using_GNU_Linker then
declare
end;
end if;
- Close (Tname_FD);
+ Close (Tname_FD, Closing_Status);
-- Add the special objects list file option together with the name
-- of the temporary file (removing the null character) to the objects
-- are removed by moving up the linker options and non-Ada object
-- files appearing after the Ada object list in the table.
- N := Objs_End - Objs_Begin + 1;
- for J in Objs_End + 1 .. Linker_Objects.Last loop
- Linker_Objects.Table (J - N + 1) := Linker_Objects.Table (J);
- end loop;
+ declare
+ N : Integer;
+
+ begin
+ N := Objs_End - Objs_Begin + 1;
- Linker_Objects.Set_Last (Linker_Objects.Last - N + 1);
+ for J in Objs_End + 1 .. Linker_Objects.Last loop
+ Linker_Objects.Table (J - N + 1) := Linker_Objects.Table (J);
+ end loop;
+
+ Linker_Objects.Set_Last (Linker_Objects.Last - N + 1);
+ end;
end if;
-- Process switches and options
if Next_Line (Nfirst .. Nlast) /= End_Info then
+ Xlinker_Was_Previous := False;
+
loop
- if Next_Line (Nfirst .. Nlast) = "-static" then
+ if Xlinker_Was_Previous
+ or else Next_Line (Nfirst .. Nlast) = "-Xlinker"
+ then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Next_Line (Nfirst .. Nlast));
+
+ elsif Next_Line (Nfirst .. Nlast) = "-static" then
GNAT_Static := True;
elsif Next_Line (Nfirst .. Nlast) = "-shared" then
-- Add binder options only if not already set on the command
-- line. This rule is a way to control the linker options order.
- elsif not Is_Option_Present (Next_Line (Nfirst .. Nlast)) then
+ -- The following test needs comments, why is it VMS specific.
+ -- The above comment looks out of date ???
+
+ elsif not (OpenVMS_On_Target
+ and then
+ Is_Option_Present (Next_Line (Nfirst .. Nlast)))
+ then
if Nlast > Nfirst + 2 and then
Next_Line (Nfirst .. Nfirst + 1) = "-L"
then
elsif Next_Line (Nfirst .. Nlast) = "-ldecgnat"
or else Next_Line (Nfirst .. Nlast) = "-lgnarl"
or else Next_Line (Nfirst .. Nlast) = "-lgnat"
+ or else Next_Line
+ (1 .. Natural'Min (Nlast, 8 + Library_Version'Length)) =
+ Shared_Lib ("gnarl")
+ or else Next_Line
+ (1 .. Natural'Min (Nlast, 7 + Library_Version'Length)) =
+ Shared_Lib ("gnat")
then
+ -- If it is a shared library, remove the library version.
+ -- We will be looking for the static version of the library
+ -- as it is in the same directory as the shared version.
+
+ if Next_Line (Nlast - Library_Version'Length + 1 .. Nlast)
+ = Library_Version
+ then
+ -- Set Last to point to last character before the
+ -- library version.
+
+ Last := Nlast - Library_Version'Length - 1;
+ else
+ Last := Nlast;
+ end if;
+
-- Given a Gnat standard library, search the
-- library path to find the library location
declare
File_Path : String_Access;
+
Object_Lib_Extension : constant String :=
- Value (Object_Library_Ext_Ptr);
+ Value (Object_Library_Ext_Ptr);
- File_Name : String := "lib" &
- Next_Line (Nfirst + 2 .. Nlast) & Object_Lib_Extension;
+ File_Name : constant String := "lib" &
+ Next_Line (Nfirst + 2 .. Last) &
+ Object_Lib_Extension;
+
+ Run_Path_Opt : constant String :=
+ Value (Run_Path_Option_Ptr);
+
+ GCC_Index : Natural;
+ Run_Path_Opt_Index : Natural := 0;
begin
File_Path :=
new String'(File_Path.all);
elsif GNAT_Shared then
+ if Opt.Run_Path_Option then
+ -- If shared gnatlib desired, add the
+ -- appropriate system specific switch
+ -- so that it can be located at runtime.
- -- If shared gnatlib desired, add the
- -- appropriate system specific switch
- -- so that it can be located at runtime.
-
- declare
- Run_Path_Opt : constant String :=
- Value (Run_Path_Option_Ptr);
-
- begin
if Run_Path_Opt'Length /= 0 then
-
- -- Output the system specific linker
- -- command that allows the image
- -- activator to find the shared library
- -- at runtime.
-
- Linker_Options.Increment_Last;
-
- Linker_Options.Table (Linker_Options.Last)
- := new String'(Run_Path_Opt
- & File_Path
- (1 .. File_Path'Length
- - File_Name'Length));
+ -- Output the system specific linker command
+ -- that allows the image activator to find
+ -- the shared library at runtime.
+ -- Also add path to find libgcc_s.so, if
+ -- relevant.
+
+ -- To find the location of the shared version
+ -- of libgcc, we look for "gcc-lib" in the
+ -- path of the library. However, this
+ -- subdirectory is no longer present in
+ -- in recent version of GCC. So, we look for
+ -- the last subdirectory "lib" in the path.
+
+ GCC_Index :=
+ Index (File_Path.all, "gcc-lib");
+
+ if GCC_Index /= 0 then
+ -- The shared version of libgcc is
+ -- located in the parent directory.
+
+ GCC_Index := GCC_Index - 1;
+
+ else
+ GCC_Index :=
+ Index (File_Path.all, "/lib/");
+
+ if GCC_Index = 0 then
+ GCC_Index :=
+ Index (File_Path.all,
+ Directory_Separator &
+ "lib" &
+ Directory_Separator);
+ end if;
+
+ -- We have found a subdirectory "lib",
+ -- this is where the shared version of
+ -- libgcc should be located.
+
+ if GCC_Index /= 0 then
+ GCC_Index := GCC_Index + 3;
+ end if;
+ end if;
+
+ -- Look for an eventual run_path_option in
+ -- the linker switches.
+
+ if Separate_Run_Path_Options then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table
+ (Linker_Options.Last) :=
+ new String'
+ (Run_Path_Opt
+ & File_Path
+ (1 .. File_Path'Length
+ - File_Name'Length));
+
+ if GCC_Index /= 0 then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table
+ (Linker_Options.Last) :=
+ new String'
+ (Run_Path_Opt
+ & File_Path (1 .. GCC_Index));
+ end if;
+ else
+ for J in reverse
+ 1 .. Linker_Options.Last
+ loop
+ if Linker_Options.Table (J) /= null
+ and then
+ Linker_Options.Table (J)'Length
+ > Run_Path_Opt'Length
+ and then
+ Linker_Options.Table (J)
+ (1 .. Run_Path_Opt'Length) =
+ Run_Path_Opt
+ then
+ -- We have found a already specified
+ -- run_path_option: we will add to
+ -- this switch, because only one
+ -- run_path_option should be
+ -- specified.
+
+ Run_Path_Opt_Index := J;
+ exit;
+ end if;
+ end loop;
+
+ -- If there is no run_path_option, we need
+ -- to add one.
+
+ if Run_Path_Opt_Index = 0 then
+ Linker_Options.Increment_Last;
+ end if;
+
+ if GCC_Index = 0 then
+ if Run_Path_Opt_Index = 0 then
+ Linker_Options.Table
+ (Linker_Options.Last) :=
+ new String'
+ (Run_Path_Opt
+ & File_Path
+ (1 .. File_Path'Length
+ - File_Name'Length));
+
+ else
+ Linker_Options.Table
+ (Run_Path_Opt_Index) :=
+ new String'
+ (Linker_Options.Table
+ (Run_Path_Opt_Index).all
+ & Path_Separator
+ & File_Path
+ (1 .. File_Path'Length
+ - File_Name'Length));
+ end if;
+
+ else
+ if Run_Path_Opt_Index = 0 then
+ Linker_Options.Table
+ (Linker_Options.Last) :=
+ new String'(Run_Path_Opt
+ & File_Path
+ (1 .. File_Path'Length
+ - File_Name'Length)
+ & Path_Separator
+ & File_Path (1 .. GCC_Index));
+
+ else
+ Linker_Options.Table
+ (Run_Path_Opt_Index) :=
+ new String'
+ (Linker_Options.Table
+ (Run_Path_Opt_Index).all
+ & Path_Separator
+ & File_Path
+ (1 .. File_Path'Length
+ - File_Name'Length)
+ & Path_Separator
+ & File_Path (1 .. GCC_Index));
+ end if;
+ end if;
+ end if;
end if;
+ end if;
- Linker_Options.Increment_Last;
- Linker_Options.Table (Linker_Options.Last)
- := new String'(Next_Line (Nfirst .. Nlast));
- end;
+ -- Then we add the appropriate -l switch
+
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Next_Line (Nfirst .. Nlast));
end if;
else
-- If gnatlib library not found, then
-- add it anyway in case some other
- -- mechanimsm may find it.
+ -- mechanism may find it.
Linker_Options.Increment_Last;
- Linker_Options.Table (Linker_Options.Last)
- := new String'(Next_Line (Nfirst .. Nlast));
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Next_Line (Nfirst .. Nlast));
end if;
end;
else
Linker_Options.Increment_Last;
- Linker_Options.Table (Linker_Options.Last)
- := new String'(Next_Line (Nfirst .. Nlast));
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Next_Line (Nfirst .. Nlast));
end if;
end if;
+ Xlinker_Was_Previous := Next_Line (Nfirst .. Nlast) = "-Xlinker";
+
Get_Next_Line;
exit when Next_Line (Nfirst .. Nlast) = End_Info;
if Ada_Bind_File then
- Next_Line (Nfirst .. Nlast - 8)
- := Next_Line (Nfirst + 8 .. Nlast);
+ Next_Line (Nfirst .. Nlast - 8) :=
+ Next_Line (Nfirst + 8 .. Nlast);
Nlast := Nlast - 8;
end if;
end loop;
end if;
+ -- If -shared was specified, invoke gcc with -shared-libgcc
+
+ if GNAT_Shared then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) := Shared_Libgcc;
+ end if;
+
Status := fclose (Fd);
end Process_Binder_File;
-----------
- -- Value --
+ -- Usage --
-----------
- function Value (chars : chars_ptr) return String is
- function Strlen (chars : chars_ptr) return Natural;
- pragma Import (C, Strlen);
-
- begin
- if chars = Null_Address then
- return "";
-
- else
- declare
- subtype Result_Type is String (1 .. Strlen (chars));
-
- Result : Result_Type;
- for Result'Address use chars;
-
- begin
- return Result;
- end;
- end if;
- end Value;
-
- -----------------
- -- Write_Usage --
- -----------------
-
- procedure Write_Usage is
+ procedure Usage is
begin
Write_Str ("Usage: ");
Write_Str (Base_Name (Command_Name));
Write_Line (" -f force object file list to be generated");
Write_Line (" -g Compile binder source file with debug information");
Write_Line (" -n Do not compile the binder source file");
+ Write_Line (" -R Do not use a run_path_option");
Write_Line (" -v verbose mode");
Write_Line (" -v -v very verbose mode");
Write_Eol;
Write_Line (" -o nam Use 'nam' as the name of the executable");
Write_Line (" -b target Compile the binder source to run on target");
Write_Line (" -Bdir Load compiler executables from dir");
+
+ if Is_Supported (Map_File) then
+ Write_Line (" -Mmap Create map file map");
+ Write_Line (" -M Create map file mainprog.map");
+ end if;
+
Write_Line (" --GCC=comp Use comp as the compiler");
Write_Line (" --LINK=nam Use 'nam' for the linking rather than 'gcc'");
Write_Eol;
Write_Line (" [non-Ada-objects] list of non Ada object files");
Write_Line (" [linker-options] other options for the linker");
+ end Usage;
+
+ ------------------
+ -- Write_Header --
+ ------------------
+
+ procedure Write_Header is
+ begin
+ if Verbose_Mode then
+ Write_Eol;
+ Display_Version ("GNATLINK", "1995");
+ end if;
+ end Write_Header;
+
+ -----------------
+ -- Write_Usage --
+ -----------------
+
+ procedure Write_Usage is
+ begin
+ Write_Header;
+ Usage;
end Write_Usage;
-- Start of processing for Gnatlink
begin
- if Argument_Count = 0 then
+ -- Add the directory where gnatlink is invoked in front of the
+ -- path, if gnatlink is invoked with directory information.
+ -- Only do this if the platform is not VMS, where the notion of path
+ -- does not really exist.
+
+ if not Hostparm.OpenVMS then
+ declare
+ Command : constant String := Command_Name;
+
+ begin
+ for Index in reverse Command'Range loop
+ if Command (Index) = Directory_Separator then
+ declare
+ Absolute_Dir : constant String :=
+ Normalize_Pathname
+ (Command (Command'First .. Index));
+
+ PATH : constant String :=
+ Absolute_Dir &
+ Path_Separator &
+ Getenv ("PATH").all;
+
+ begin
+ Setenv ("PATH", PATH);
+ end;
+
+ exit;
+ end if;
+ end loop;
+ end;
+ end if;
+
+ Process_Args;
+
+ if Argument_Count = 0
+ or else
+ (Verbose_Mode and then Argument_Count = 1)
+ then
Write_Usage;
Exit_Program (E_Fatal);
end if;
- if Hostparm.Java_VM then
- Gcc := new String'("jgnat");
- Ada_Bind_File := True;
- Begin_Info := "-- BEGIN Object file/option list";
- End_Info := "-- END Object file/option list ";
- end if;
+ -- Initialize packages to be used
- Process_Args;
+ Namet.Initialize;
+ Csets.Initialize;
+ Snames.Initialize;
-- We always compile with -c
Binder_Options_From_ALI.Table (Binder_Options_From_ALI.Last) :=
new String'("-c");
+ if Ali_File_Name = null then
+ Exit_With_Error ("no ali file given for link");
+ end if;
+
+ if not Is_Regular_File (Ali_File_Name.all) then
+ Exit_With_Error (Ali_File_Name.all & " not found");
+ end if;
+
+ -- Read the ALI file of the main subprogram if the binder generated
+ -- file needs to be compiled and no --GCC= switch has been specified.
+ -- Fetch the back end switches from this ALI file and use these switches
+ -- to compile the binder generated file
+
+ if Compile_Bind_File and then Standard_Gcc then
+
+ Initialize_ALI;
+ Name_Len := Ali_File_Name'Length;
+ Name_Buffer (1 .. Name_Len) := Ali_File_Name.all;
+
+ declare
+ use Types;
+ F : constant File_Name_Type := Name_Find;
+ T : Text_Buffer_Ptr;
+ A : ALI_Id;
+
+ begin
+ -- Load the ALI file
+
+ T := Read_Library_Info (F, True);
+
+ -- Read it. Note that we ignore errors, since we only want very
+ -- limited information from the ali file, and likely a slightly
+ -- wrong version will be just fine, though in normal operation
+ -- we don't expect this to happen!
+
+ A := Scan_ALI
+ (F,
+ T,
+ Ignore_ED => False,
+ Err => False,
+ Ignore_Errors => True);
+
+ if A /= No_ALI_Id then
+ for
+ Index in Units.Table (ALIs.Table (A).First_Unit).First_Arg ..
+ Units.Table (ALIs.Table (A).First_Unit).Last_Arg
+ loop
+ -- Do not compile with the front end switches. However, --RTS
+ -- is to be dealt with specially because it needs to be passed
+ -- if the binder-generated file is in Ada and may also be used
+ -- to drive the linker.
+
+ declare
+ Arg : String_Ptr renames Args.Table (Index);
+ begin
+ if not Is_Front_End_Switch (Arg.all) then
+ Binder_Options_From_ALI.Increment_Last;
+ Binder_Options_From_ALI.Table
+ (Binder_Options_From_ALI.Last) := String_Access (Arg);
+
+ elsif Arg'Length > 5
+ and then Arg (Arg'First + 2 .. Arg'First + 5) = "RTS="
+ then
+ if Ada_Bind_File then
+ Binder_Options_From_ALI.Increment_Last;
+ Binder_Options_From_ALI.Table
+ (Binder_Options_From_ALI.Last)
+ := String_Access (Arg);
+ end if;
+
+ -- Set the RTS_*_Path_Name variables, so that the
+ -- correct directories will be set when
+ -- Osint.Add_Default_Search_Dirs will be called later.
+
+ Opt.RTS_Src_Path_Name :=
+ Get_RTS_Search_Dir
+ (Arg (Arg'First + 6 .. Arg'Last), Include);
+
+ Opt.RTS_Lib_Path_Name :=
+ Get_RTS_Search_Dir
+ (Arg (Arg'First + 6 .. Arg'Last), Objects);
+
+ -- GNAT doesn't support the GCC multilib mechanism.
+ -- This means that, when a multilib switch is used
+ -- to request a particular compilation mode, the
+ -- corresponding runtime switch (--RTS) must also be
+ -- specified. The long-term goal is to fully support the
+ -- multilib mechanism; however, in the meantime, it is
+ -- convenient to eliminate the redundancy by keying the
+ -- compilation mode on a single switch, namely --RTS.
+
+ -- Pass -mrtp to the linker if --RTS=rtp was passed
+
+ if Arg'Length > 8
+ and then Arg (Arg'First + 6 .. Arg'First + 8) = "rtp"
+ then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'("-mrtp");
+
+ -- Pass -fsjlj to the linker if --RTS=sjlj was passed
+
+ elsif Arg'Length > 9
+ and then Arg (Arg'First + 6 .. Arg'First + 9) = "sjlj"
+ then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'("-fsjlj");
+ end if;
+ end if;
+ end;
+ end loop;
+ end if;
+ end;
+ end if;
+
+ -- Get target parameters
+
+ Osint.Add_Default_Search_Dirs;
+ Targparm.Get_Target_Parameters;
+
+ if VM_Target /= No_VM then
+ case VM_Target is
+ when JVM_Target => Gcc := new String'("jvm-gnatcompile");
+ when CLI_Target => Gcc := new String'("dotnet-gnatcompile");
+ when No_VM => raise Program_Error;
+ end case;
+
+ Ada_Bind_File := True;
+ Begin_Info := "-- BEGIN Object file/option list";
+ End_Info := "-- END Object file/option list ";
+ end if;
+
-- If the main program is in Ada it is compiled with the following
-- switches:
-- -gnatA stops reading gnat.adc, since we don't know what
- -- pagmas would work, and we do not need it anyway.
+ -- pragmas would work, and we do not need it anyway.
-- -gnatWb allows brackets coding for wide characters
-- Locate all the necessary programs and verify required files are present
- Gcc_Path := GNAT.OS_Lib.Locate_Exec_On_Path (Gcc.all);
+ Gcc_Path := System.OS_Lib.Locate_Exec_On_Path (Gcc.all);
if Gcc_Path = null then
Exit_With_Error ("Couldn't locate " & Gcc.all);
end if;
if Linker_Path = null then
- Linker_Path := Gcc_Path;
- end if;
-
- if Ali_File_Name = null then
- Exit_With_Error ("Required 'name'.ali not present.");
- end if;
-
- if not Is_Regular_File (Ali_File_Name.all) then
- Exit_With_Error (Ali_File_Name.all & " not found.");
-
- -- Read the ALI file of the main subprogram if the binder generated
- -- file is in Ada, it need to be compiled and no --GCC= switch has
- -- been specified. Fetch the back end switches from this ALI file and use
- -- these switches to compile the binder generated file
-
- elsif Ada_Bind_File
- and then Compile_Bind_File
- and then Standard_Gcc
- then
- -- Do some initializations
+ if VM_Target = CLI_Target then
+ Linker_Path := System.OS_Lib.Locate_Exec_On_Path ("ilasm");
- Initialize_ALI;
- Namet.Initialize;
- Name_Len := Ali_File_Name'Length;
- Name_Buffer (1 .. Name_Len) := Ali_File_Name.all;
-
- declare
- use Types;
- F : constant File_Name_Type := Name_Find;
- T : Text_Buffer_Ptr;
- A : ALI_Id;
-
- begin
- -- Osint.Add_Default_Search_Dirs;
- -- Load the ALI file
-
- T := Read_Library_Info (F, True);
+ if Linker_Path = null then
+ Exit_With_Error ("Couldn't locate ilasm");
+ end if;
- -- Read it
+ elsif RTX_RTSS_Kernel_Module_On_Target then
- A := Scan_ALI (F, T, False, False, False);
+ -- Use Microsoft linker for RTSS modules
- if A /= No_ALI_Id then
- for
- Index in Units.Table (ALIs.Table (A).First_Unit).First_Arg
- .. Units.Table (ALIs.Table (A).First_Unit).Last_Arg
- loop
- -- Do not compile with the front end switches
+ Linker_Path := System.OS_Lib.Locate_Exec_On_Path ("link");
- if not Is_Front_End_Switch (Args.Table (Index).all) then
- Binder_Options_From_ALI.Increment_Last;
- Binder_Options_From_ALI.Table (Binder_Options_From_ALI.Last)
- := String_Access (Args.Table (Index));
- end if;
- end loop;
+ if Linker_Path = null then
+ Exit_With_Error ("Couldn't locate link");
end if;
- end;
- end if;
- if Verbose_Mode then
- Write_Eol;
- Write_Str ("GNATLINK ");
- Write_Str (Gnat_Version_String);
- Write_Str (" Copyright 1996-2002 Free Software Foundation, Inc.");
- Write_Eol;
+ else
+ Linker_Path := Gcc_Path;
+ end if;
end if;
- -- If there wasn't an output specified, then use the base name of
- -- the .ali file name.
+ Write_Header;
- if Output_File_Name = null then
+ -- If no output name specified, then use the base name of .ali file name
+ if Output_File_Name = null then
Output_File_Name :=
new String'(Base_Name (Ali_File_Name.all)
- & Get_Debuggable_Suffix.all);
+ & Get_Target_Debuggable_Suffix.all);
- Linker_Options.Increment_Last;
- Linker_Options.Table (Linker_Options.Last) :=
- new String'("-o");
+ if VM_Target = CLI_Target then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) := new String'("/QUIET");
- Linker_Options.Increment_Last;
- Linker_Options.Table (Linker_Options.Last) :=
- new String'(Output_File_Name.all);
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) := new String'("/DEBUG");
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'("/OUTPUT=" & Output_File_Name.all);
+
+ elsif RTX_RTSS_Kernel_Module_On_Target then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'("/OUT:" & Output_File_Name.all);
+
+ else
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) := new String'("-o");
+
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'(Output_File_Name.all);
+ end if;
end if;
-- Warn if main program is called "test", as that may be a built-in command
-- on Unix. On non-Unix systems executables have a suffix, so the warning
-- will not appear. However, do not warn in the case of a cross compiler.
- -- Assume that if the executable name is not gnatlink, this is a cross
- -- tool.
+ -- Assume this is a cross tool if the executable name is not gnatlink
if Base_Name (Command_Name) = "gnatlink"
and then Output_File_Name.all = "test"
& """ may conflict with shell command");
end if;
+ -- If -M switch was specified, add the switches to create the map file
+
+ if Create_Map_File then
+ declare
+ Map_Name : constant String := Base_Name (Ali_File_Name.all) & ".map";
+ Switches : String_List_Access;
+
+ begin
+ Convert (Map_File, Map_Name, Switches);
+
+ if Switches /= null then
+ for J in Switches'Range loop
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) := Switches (J);
+ end loop;
+ end if;
+ end;
+ end if;
+
-- Perform consistency checks
- -- Transform the .ali file name into the binder output file name.
+ -- Transform the .ali file name into the binder output file name
Make_Binder_File_Names : declare
- Fname : String := Base_Name (Ali_File_Name.all);
+ Fname : constant String := Base_Name (Ali_File_Name.all);
Fname_Len : Integer := Fname'Length;
function Get_Maximum_File_Name_Length return Integer;
pragma Import (C, Get_Maximum_File_Name_Length,
"__gnat_get_maximum_file_name_length");
- Maximum_File_Name_Length : Integer := Get_Maximum_File_Name_Length;
+ Maximum_File_Name_Length : constant Integer :=
+ Get_Maximum_File_Name_Length;
- Second_Char : Character;
- -- Second character of name of files
+ Bind_File_Prefix : Types.String_Ptr;
+ -- Contains prefix used for bind files
begin
- -- Set proper second character of file name
+ -- Set prefix
if not Ada_Bind_File then
- Second_Char := '_';
-
- elsif Hostparm.OpenVMS then
- Second_Char := '$';
-
+ Bind_File_Prefix := new String'("b_");
+ elsif OpenVMS_On_Target then
+ Bind_File_Prefix := new String'("b__");
else
- Second_Char := '~';
+ Bind_File_Prefix := new String'("b~");
end if;
-- If the length of the binder file becomes too long due to
-- the addition of the "b?" prefix, then truncate it.
if Maximum_File_Name_Length > 0 then
- while Fname_Len > Maximum_File_Name_Length - 2 loop
+ while Fname_Len >
+ Maximum_File_Name_Length - Bind_File_Prefix.all'Length
+ loop
Fname_Len := Fname_Len - 1;
end loop;
end if;
- if Ada_Bind_File then
- Binder_Spec_Src_File :=
- new String'('b'
- & Second_Char
- & Fname (Fname'First .. Fname'First + Fname_Len - 1)
- & ".ads");
- Binder_Body_Src_File :=
- new String'('b'
- & Second_Char
- & Fname (Fname'First .. Fname'First + Fname_Len - 1)
- & ".adb");
- Binder_Ali_File :=
- new String'('b'
- & Second_Char
- & Fname (Fname'First .. Fname'First + Fname_Len - 1)
- & ".ali");
+ declare
+ Fnam : constant String :=
+ Bind_File_Prefix.all &
+ Fname (Fname'First .. Fname'First + Fname_Len - 1);
- else
- Binder_Body_Src_File :=
- new String'('b'
- & Second_Char
- & Fname (Fname'First .. Fname'First + Fname_Len - 1)
- & ".c");
- end if;
+ begin
+ if Ada_Bind_File then
+ Binder_Spec_Src_File := new String'(Fnam & ".ads");
+ Binder_Body_Src_File := new String'(Fnam & ".adb");
+ Binder_Ali_File := new String'(Fnam & ".ali");
+ else
+ Binder_Body_Src_File := new String'(Fnam & ".c");
+ end if;
- Binder_Obj_File :=
- new String'('b'
- & Second_Char
- & Fname (Fname'First .. Fname'First + Fname_Len - 1)
- & Get_Object_Suffix.all);
+ Binder_Obj_File := new String'(Fnam & Get_Target_Object_Suffix.all);
+ end;
if Fname_Len /= Fname'Length then
Binder_Options.Increment_Last;
Binder_Options.Increment_Last;
Binder_Options.Table (Binder_Options.Last) := Binder_Obj_File;
end if;
-
end Make_Binder_File_Names;
Process_Binder_File (Binder_Body_Src_File.all & ASCII.NUL);
Binder_Options.Table (J);
end loop;
- Args (Args'Last) := Binder_Body_Src_File;
+ -- Use the full path of the binder generated source, so that it is
+ -- guaranteed that the debugger will find this source, even with
+ -- STABS.
+
+ Args (Args'Last) :=
+ new String'(Normalize_Pathname (Binder_Body_Src_File.all));
if Verbose_Mode then
Write_Str (Base_Name (Gcc_Path.all));
Write_Eol;
end if;
- GNAT.OS_Lib.Spawn (Gcc_Path.all, Args, Success);
+ System.OS_Lib.Spawn (Gcc_Path.all, Args, Success);
if not Success then
Exit_Program (E_Fatal);
end Bind_Step;
end if;
- -- Now, actually link the program.
+ -- Now, actually link the program
- -- Skip this step for now on the JVM since the Java interpreter will do
+ -- Skip this step for now on JVM since the Java interpreter will do
-- the actual link at run time. We might consider packing all class files
-- in a .zip file during this step.
- if not Hostparm.Java_VM then
+ if VM_Target /= JVM_Target then
Link_Step : declare
Num_Args : Natural :=
(Linker_Options.Last - Linker_Options.First + 1) +
IDENT_Op : Boolean := False;
begin
+ if VM_Target = CLI_Target then
+
+ -- Remove extraneous flags not relevant for CIL. Also remove empty
+ -- arguments, since ilasm chokes on them.
+
+ for J in reverse Linker_Options.First .. Linker_Options.Last loop
+ if Linker_Options.Table (J)'Length = 0
+ or else Linker_Options.Table (J) (1 .. 2) = "-L"
+ or else Linker_Options.Table (J) (1 .. 2) = "-l"
+ or else Linker_Options.Table (J) (1 .. 3) = "-Wl"
+ or else Linker_Options.Table (J) (1 .. 3) = "-sh"
+ or else Linker_Options.Table (J) (1 .. 2) = "-g"
+ then
+ Linker_Options.Table (J .. Linker_Options.Last - 1) :=
+ Linker_Options.Table (J + 1 .. Linker_Options.Last);
+ Linker_Options.Decrement_Last;
+ Num_Args := Num_Args - 1;
+ end if;
+ end loop;
+
+ elsif RTX_RTSS_Kernel_Module_On_Target then
+
+ -- Remove flags not relevant for Microsoft linker and adapt some
+ -- others.
+
+ for J in reverse Linker_Options.First .. Linker_Options.Last loop
+
+ -- Remove flags that are not accepted
+ if Linker_Options.Table (J)'Length = 0
+ or else Linker_Options.Table (J) (1 .. 2) = "-l"
+ or else Linker_Options.Table (J) (1 .. 3) = "-Wl"
+ or else Linker_Options.Table (J) (1 .. 3) = "-sh"
+ or else Linker_Options.Table (J) (1 .. 8) = "-Xlinker"
+ or else Linker_Options.Table (J) (1 .. 9) = "-mthreads"
+ then
+ Linker_Options.Table (J .. Linker_Options.Last - 1) :=
+ Linker_Options.Table (J + 1 .. Linker_Options.Last);
+ Linker_Options.Decrement_Last;
+ Num_Args := Num_Args - 1;
+
+ -- Replace "-L" by its counterpart "/LIBPATH:" and UNIX "/" by
+ -- Windows "\".
+ elsif Linker_Options.Table (J) (1 .. 2) = "-L" then
+ declare
+ Libpath_Option : constant String_Access := new String'
+ ("/LIBPATH:" &
+ Linker_Options.Table (J)
+ (3 .. Linker_Options.Table (J).all'Last));
+ begin
+ for Index in 10 .. Libpath_Option'Last loop
+ if Libpath_Option (Index) = '/' then
+ Libpath_Option (Index) := '\';
+ end if;
+ end loop;
+
+ Linker_Options.Table (J) := Libpath_Option;
+ end;
+
+ -- Replace "-g" by "/DEBUG"
+ elsif Linker_Options.Table (J) (1 .. 2) = "-g" then
+ Linker_Options.Table (J) := new String'("/DEBUG");
+
+ -- Replace "-o" by "/OUT:"
+ elsif Linker_Options.Table (J) (1 .. 2) = "-o" then
+ Linker_Options.Table (J + 1) := new String'
+ ("/OUT:" & Linker_Options.Table (J + 1).all);
+
+ Linker_Options.Table (J .. Linker_Options.Last - 1) :=
+ Linker_Options.Table (J + 1 .. Linker_Options.Last);
+ Linker_Options.Decrement_Last;
+ Num_Args := Num_Args - 1;
+
+ -- Replace "--stack=" by "/STACK:"
+ elsif Linker_Options.Table (J) (1 .. 8) = "--stack=" then
+ Linker_Options.Table (J) := new String'
+ ("/STACK:" &
+ Linker_Options.Table (J)
+ (9 .. Linker_Options.Table (J).all'Last));
+
+ -- Replace "-v" by its counterpart "/VERBOSE"
+ elsif Linker_Options.Table (J) (1 .. 2) = "-v" then
+ Linker_Options.Table (J) := new String'("/VERBOSE");
+ end if;
+ end loop;
+
+ -- Add some required flags to create RTSS modules
+
+ declare
+ Flags_For_Linker : constant array (1 .. 17) of String_Access :=
+ (new String'("/NODEFAULTLIB"),
+ new String'("/INCREMENTAL:NO"),
+ new String'("/NOLOGO"),
+ new String'("/DRIVER"),
+ new String'("/ALIGN:0x20"),
+ new String'("/SUBSYSTEM:NATIVE"),
+ new String'("/ENTRY:_RtapiProcessEntryCRT@8"),
+ new String'("/RELEASE"),
+ new String'("startupCRT.obj"),
+ new String'("rtxlibcmt.lib"),
+ new String'("oldnames.lib"),
+ new String'("rtapi_rtss.lib"),
+ new String'("Rtx_Rtss.lib"),
+ new String'("libkernel32.a"),
+ new String'("libws2_32.a"),
+ new String'("libmswsock.a"),
+ new String'("libadvapi32.a"));
+ -- These flags need to be passed to Microsoft linker. They
+ -- come from the RTX documentation.
+
+ Gcc_Lib_Path : constant String_Access := new String'
+ ("/LIBPATH:" & Include_Dir_Default_Prefix & "\..\");
+ -- Place to look for gcc related libraries, such as libgcc
+
+ begin
+ -- Replace UNIX "/" by Windows "\" in the path
+
+ for Index in 10 .. Gcc_Lib_Path.all'Last loop
+ if Gcc_Lib_Path (Index) = '/' then
+ Gcc_Lib_Path (Index) := '\';
+ end if;
+ end loop;
+
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) := Gcc_Lib_Path;
+ Num_Args := Num_Args + 1;
+
+ for Index in Flags_For_Linker'Range loop
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ Flags_For_Linker (Index);
+ Num_Args := Num_Args + 1;
+ end loop;
+ end;
+ end if;
+
-- Remove duplicate stack size setting from the Linker_Options
-- table. The stack setting option "-Xlinker --stack=R,C" can be
-- found in one line when set by a pragma Linker_Options or in two
-- one. And any subsequent stack setting option will overwrite the
-- previous one. This is done especially for GNAT/NT where we set
-- the stack size for tasking programs by a pragma in the NT
- -- specific tasking package System.Task_Primitives.Oparations.
+ -- specific tasking package System.Task_Primitives.Operations.
- for J in Linker_Options.First .. Linker_Options.Last loop
- if Linker_Options.Table (J).all = "-Xlinker"
- and then J < Linker_Options.Last
- and then Linker_Options.Table (J + 1)'Length > 8
- and then Linker_Options.Table (J + 1) (1 .. 8) = "--stack="
- then
- if Stack_Op then
- Linker_Options.Table (J .. Linker_Options.Last - 2) :=
- Linker_Options.Table (J + 2 .. Linker_Options.Last);
- Linker_Options.Decrement_Last;
- Linker_Options.Decrement_Last;
- Num_Args := Num_Args - 2;
+ -- Note: This is not a FOR loop that runs from Linker_Options.First
+ -- to Linker_Options.Last, since operations within the loop can
+ -- modify the length of the table.
- else
- Stack_Op := True;
+ Clean_Link_Option_Set : declare
+ J : Natural := Linker_Options.First;
+ Shared_Libgcc_Seen : Boolean := False;
+
+ begin
+ while J <= Linker_Options.Last loop
+
+ if Linker_Options.Table (J).all = "-Xlinker"
+ and then J < Linker_Options.Last
+ and then Linker_Options.Table (J + 1)'Length > 8
+ and then Linker_Options.Table (J + 1) (1 .. 8) = "--stack="
+ then
+ if Stack_Op then
+ Linker_Options.Table (J .. Linker_Options.Last - 2) :=
+ Linker_Options.Table (J + 2 .. Linker_Options.Last);
+ Linker_Options.Decrement_Last;
+ Linker_Options.Decrement_Last;
+ Num_Args := Num_Args - 2;
+
+ else
+ Stack_Op := True;
+ end if;
end if;
- end if;
- -- Here we just check for a canonical form that matches the
- -- pragma Linker_Options set in the NT runtime.
+ -- Remove duplicate -shared-libgcc switch
- if (Linker_Options.Table (J)'Length > 17
- and then Linker_Options.Table (J) (1 .. 17)
- = "-Xlinker --stack=")
- or else
- (Linker_Options.Table (J)'Length > 12
- and then Linker_Options.Table (J) (1 .. 12)
- = "-Wl,--stack=")
- then
- if Stack_Op then
- Linker_Options.Table (J .. Linker_Options.Last - 1) :=
- Linker_Options.Table (J + 1 .. Linker_Options.Last);
- Linker_Options.Decrement_Last;
- Num_Args := Num_Args - 1;
+ if Linker_Options.Table (J).all = Shared_Libgcc_String then
+ if Shared_Libgcc_Seen then
+ Linker_Options.Table (J .. Linker_Options.Last - 1) :=
+ Linker_Options.Table (J + 1 .. Linker_Options.Last);
+ Linker_Options.Decrement_Last;
+ Num_Args := Num_Args - 1;
- else
- Stack_Op := True;
+ else
+ Shared_Libgcc_Seen := True;
+ end if;
end if;
- end if;
- -- Remove duplicate IDENTIFICATION directives (VMS)
+ -- Here we just check for a canonical form that matches the
+ -- pragma Linker_Options set in the NT runtime.
- if Linker_Options.Table (J)'Length > 27
- and then Linker_Options.Table (J) (1 .. 27)
- = "--for-linker=IDENTIFICATION="
- then
- if IDENT_Op then
- Linker_Options.Table (J .. Linker_Options.Last - 1) :=
- Linker_Options.Table (J + 1 .. Linker_Options.Last);
- Linker_Options.Decrement_Last;
- Num_Args := Num_Args - 1;
- else
- IDENT_Op := True;
+ if (Linker_Options.Table (J)'Length > 17
+ and then Linker_Options.Table (J) (1 .. 17)
+ = "-Xlinker --stack=")
+ or else
+ (Linker_Options.Table (J)'Length > 12
+ and then Linker_Options.Table (J) (1 .. 12)
+ = "-Wl,--stack=")
+ then
+ if Stack_Op then
+ Linker_Options.Table (J .. Linker_Options.Last - 1) :=
+ Linker_Options.Table (J + 1 .. Linker_Options.Last);
+ Linker_Options.Decrement_Last;
+ Num_Args := Num_Args - 1;
+
+ else
+ Stack_Op := True;
+ end if;
+ end if;
+
+ -- Remove duplicate IDENTIFICATION directives (VMS)
+
+ if Linker_Options.Table (J)'Length > 27
+ and then Linker_Options.Table (J) (1 .. 28)
+ = "--for-linker=IDENTIFICATION="
+ then
+ if IDENT_Op then
+ Linker_Options.Table (J .. Linker_Options.Last - 1) :=
+ Linker_Options.Table (J + 1 .. Linker_Options.Last);
+ Linker_Options.Decrement_Last;
+ Num_Args := Num_Args - 1;
+ else
+ IDENT_Op := True;
+ end if;
end if;
+
+ J := J + 1;
+ end loop;
+
+ if Linker_Path = Gcc_Path and then VM_Target = No_VM then
+
+ -- If gcc is not called with -shared-libgcc, call it with
+ -- -static-libgcc, as there are some platforms where one of
+ -- these two switches is compulsory to link.
+
+ if not Shared_Libgcc_Seen then
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) := Static_Libgcc;
+ Num_Args := Num_Args + 1;
+ end if;
+
+ elsif RTX_RTSS_Kernel_Module_On_Target then
+
+ -- Force the use of the static libgcc for RTSS modules
+
+ Linker_Options.Increment_Last;
+ Linker_Options.Table (Linker_Options.Last) :=
+ new String'("libgcc.a");
+ Num_Args := Num_Args + 1;
end if;
- end loop;
+
+ end Clean_Link_Option_Set;
-- Prepare arguments for call to linker
end if;
end if;
- GNAT.OS_Lib.Spawn (Linker_Path.all, Args, Success);
+ System.OS_Lib.Spawn (Linker_Path.all, Args, Success);
- -- Delete the temporary file used in conjuction with linking if
+ -- Delete the temporary file used in conjunction with linking if
-- one was created. See Process_Bind_File for details.
if Tname_FD /= Invalid_FD then
Delete (Tname);
end if;
+ if Lname /= null then
+ Delete (Lname.all & ASCII.NUL);
+ end if;
+
if not Success then
- Error_Msg ("cannot call " & Linker_Path.all);
+ Error_Msg ("error when calling " & Linker_Path.all);
Exit_Program (E_Fatal);
end if;
end Call_Linker;
Delete (Binder_Body_Src_File.all & ASCII.NUL);
- if not Hostparm.Java_VM then
+ if VM_Target = No_VM then
Delete (Binder_Obj_File.all & ASCII.NUL);
end if;
end if;
exception
when X : others =>
Write_Line (Exception_Information (X));
- Exit_With_Error ("INTERNAL ERROR. Please report.");
+ Exit_With_Error ("INTERNAL ERROR. Please report");
end Gnatlink;
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