-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2004 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2011, 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. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
with Bindgen; use Bindgen;
with Bindusg;
with Butil; use Butil;
+with Casing; use Casing;
with Csets;
+with Debug; use Debug;
with Fmap;
-with Gnatvsn; use Gnatvsn;
+with Fname; use Fname;
with Namet; use Namet;
with Opt; use Opt;
with Osint; use Osint;
with Osint.B; use Osint.B;
with Output; use Output;
with Rident; use Rident;
+with Snames;
with Switch; use Switch;
with Switch.B; use Switch.B;
+with Table;
with Targparm; use Targparm;
with Types; use Types;
-with Uintp; use Uintp;
with System.Case_Util; use System.Case_Util;
+with System.OS_Lib; use System.OS_Lib;
+
+with Ada.Command_Line.Response_File; use Ada.Command_Line;
procedure Gnatbind is
Main_Lib_File : File_Name_Type;
-- Current main library file
+ First_Main_Lib_File : File_Name_Type := No_File;
+ -- The first library file, that should be a main subprogram if neither -n
+ -- nor -z are used.
+
Std_Lib_File : File_Name_Type;
-- Standard library
Output_File_Name_Seen : Boolean := False;
Output_File_Name : String_Ptr := new String'("");
- L_Switch_Seen : Boolean := False;
+ L_Switch_Seen : Boolean := False;
+
+ Mapping_File : String_Ptr := null;
+
+ package Closure_Sources is new Table.Table
+ (Table_Component_Type => File_Name_Type,
+ Table_Index_Type => Natural,
+ Table_Low_Bound => 1,
+ Table_Initial => 10,
+ Table_Increment => 100,
+ Table_Name => "Gnatbind.Closure_Sources");
+ -- Table to record the sources in the closure, to avoid duplications. Used
+ -- only with switch -R.
+
+ function Gnatbind_Supports_Auto_Init return Boolean;
+ -- Indicates if automatic initialization of elaboration procedure
+ -- through the constructor mechanism is possible on the platform.
- Mapping_File : String_Ptr := null;
+ procedure List_Applicable_Restrictions;
+ -- List restrictions that apply to this partition if option taken
procedure Scan_Bind_Arg (Argv : String);
-- Scan and process binder specific arguments. Argv is a single argument.
-- All the one character arguments are still handled by Switch. This
- -- routine handles -aO -aI and -I-.
+ -- routine handles -aO -aI and -I-. The lower bound of Argv must be 1.
+
+ function Is_Cross_Compiler return Boolean;
+ -- Returns True iff this is a cross-compiler
+
+ ---------------------------------
+ -- Gnatbind_Supports_Auto_Init --
+ ---------------------------------
+
+ function Gnatbind_Supports_Auto_Init return Boolean is
+ function gnat_binder_supports_auto_init return Integer;
+ pragma Import (C, gnat_binder_supports_auto_init,
+ "__gnat_binder_supports_auto_init");
+ begin
+ return gnat_binder_supports_auto_init /= 0;
+ end Gnatbind_Supports_Auto_Init;
+
+ -----------------------
+ -- Is_Cross_Compiler --
+ -----------------------
+
+ function Is_Cross_Compiler return Boolean is
+ Cross_Compiler : Integer;
+ pragma Import (C, Cross_Compiler, "__gnat_is_cross_compiler");
+ begin
+ return Cross_Compiler = 1;
+ end Is_Cross_Compiler;
+
+ ----------------------------------
+ -- List_Applicable_Restrictions --
+ ----------------------------------
+
+ procedure List_Applicable_Restrictions is
+
+ -- Define those restrictions that should be output if the gnatbind
+ -- -r switch is used. Not all restrictions are output for the reasons
+ -- given below in the list, and this array is used to test whether
+ -- the corresponding pragma should be listed. True means that it
+ -- should not be listed.
+
+ No_Restriction_List : constant array (All_Restrictions) of Boolean :=
+ (No_Allocators_After_Elaboration => True,
+ -- This involves run-time conditions not checkable at compile time
+
+ No_Anonymous_Allocators => True,
+ -- Premature, since we have not implemented this yet
+
+ No_Exception_Propagation => True,
+ -- Modifies code resulting in different exception semantics
+
+ No_Exceptions => True,
+ -- Has unexpected Suppress (All_Checks) effect
+
+ No_Implicit_Conditionals => True,
+ -- This could modify and pessimize generated code
+
+ No_Implicit_Dynamic_Code => True,
+ -- This could modify and pessimize generated code
+
+ No_Implicit_Loops => True,
+ -- This could modify and pessimize generated code
+
+ No_Recursion => True,
+ -- Not checkable at compile time
+
+ No_Reentrancy => True,
+ -- Not checkable at compile time
+
+ Max_Entry_Queue_Length => True,
+ -- Not checkable at compile time
+
+ Max_Storage_At_Blocking => True,
+ -- Not checkable at compile time
+
+ others => False);
+
+ Additional_Restrictions_Listed : Boolean := False;
+ -- Set True if we have listed header for restrictions
+
+ function Restriction_Could_Be_Set (R : Restriction_Id) return Boolean;
+ -- Returns True if the given restriction can be listed as an additional
+ -- restriction that could be set.
+
+ ------------------------------
+ -- Restriction_Could_Be_Set --
+ ------------------------------
+
+ function Restriction_Could_Be_Set (R : Restriction_Id) return Boolean is
+ CR : Restrictions_Info renames Cumulative_Restrictions;
+
+ begin
+ case R is
+
+ -- Boolean restriction
+
+ when All_Boolean_Restrictions =>
+
+ -- The condition for listing a boolean restriction as an
+ -- additional restriction that could be set is that it is
+ -- not violated by any unit, and not already set.
+
+ return CR.Violated (R) = False and then CR.Set (R) = False;
+
+ -- Parameter restriction
+
+ when All_Parameter_Restrictions =>
+
+ -- If the restriction is violated and the level of violation is
+ -- unknown, the restriction can definitely not be listed.
+
+ if CR.Violated (R) and then CR.Unknown (R) then
+ return False;
+
+ -- We can list the restriction if it is not set
+
+ elsif not CR.Set (R) then
+ return True;
+
+ -- We can list the restriction if is set to a greater value
+ -- than the maximum value known for the violation.
+
+ else
+ return CR.Value (R) > CR.Count (R);
+ end if;
+
+ -- No other values for R possible
+
+ when others =>
+ raise Program_Error;
+
+ end case;
+ end Restriction_Could_Be_Set;
+
+ -- Start of processing for List_Applicable_Restrictions
+
+ begin
+ -- Loop through restrictions
+
+ for R in All_Restrictions loop
+ if not No_Restriction_List (R)
+ and then Restriction_Could_Be_Set (R)
+ then
+ if not Additional_Restrictions_Listed then
+ Write_Eol;
+ Write_Line
+ ("The following additional restrictions may be" &
+ " applied to this partition:");
+ Additional_Restrictions_Listed := True;
+ end if;
+
+ Write_Str ("pragma Restrictions (");
+
+ declare
+ S : constant String := Restriction_Id'Image (R);
+ begin
+ Name_Len := S'Length;
+ Name_Buffer (1 .. Name_Len) := S;
+ end;
+
+ Set_Casing (Mixed_Case);
+ Write_Str (Name_Buffer (1 .. Name_Len));
+
+ if R in All_Parameter_Restrictions then
+ Write_Str (" => ");
+ Write_Int (Int (Cumulative_Restrictions.Count (R)));
+ end if;
+
+ Write_Str (");");
+ Write_Eol;
+ end if;
+ end loop;
+ end List_Applicable_Restrictions;
-------------------
-- Scan_Bind_Arg --
-------------------
procedure Scan_Bind_Arg (Argv : String) is
+ pragma Assert (Argv'First = 1);
+
begin
-- Now scan arguments that are specific to the binder and are not
-- handled by the common circuitry in Switch.
"procedure names missing in -L");
end if;
- -- -Sin -Slo -Shi -Sxx
+ -- -Sin -Slo -Shi -Sxx -Sev
elsif Argv'Length = 4
and then Argv (2) = 'S'
then
null;
- -- Invalid -S switch, let Switch give error, set defalut of IN
+ -- Invalid -S switch, let Switch give error, set default of IN
else
Scan_Binder_Switches (Argv);
-- -Mname
elsif Argv'Length >= 3 and then Argv (2) = 'M' then
+ if not Is_Cross_Compiler then
+ Write_Line
+ ("gnatbind: -M not expected to be used on native platforms");
+ end if;
+
Opt.Bind_Alternate_Main_Name := True;
Opt.Alternate_Main_Name := new String'(Argv (3 .. Argv'Last));
- -- All other options are single character and are handled
- -- by Scan_Binder_Switches.
+ -- All other options are single character and are handled by
+ -- Scan_Binder_Switches.
else
Scan_Binder_Switches (Argv);
end if;
end Scan_Bind_Arg;
+ procedure Check_Version_And_Help is
+ new Check_Version_And_Help_G (Bindusg.Display);
+
-- Start of processing for Gnatbind
begin
-
-- Set default for Shared_Libgnat option
declare
Shared_Libgnat_Default : Character;
- pragma Import (C, Shared_Libgnat_Default, "shared_libgnat_default");
+ pragma Import
+ (C, Shared_Libgnat_Default, "__gnat_shared_libgnat_default");
SHARED : constant Character := 'H';
STATIC : constant Character := 'T';
Shared_Libgnat := (Shared_Libgnat_Default = SHARED);
end;
+ -- Scan the switches and arguments
+
+ -- First, scan to detect --version and/or --help
+
+ Check_Version_And_Help ("GNATBIND", "1995");
+
-- Use low level argument routines to avoid dragging in the secondary stack
Next_Arg := 1;
Scan_Args : while Next_Arg < Arg_Count loop
declare
Next_Argv : String (1 .. Len_Arg (Next_Arg));
-
begin
Fill_Arg (Next_Argv'Address, Next_Arg);
- Scan_Bind_Arg (Next_Argv);
+
+ if Next_Argv'Length > 0 then
+ if Next_Argv (1) = '@' then
+ if Next_Argv'Length > 1 then
+ declare
+ Arguments : constant Argument_List :=
+ Response_File.Arguments_From
+ (Response_File_Name =>
+ Next_Argv (2 .. Next_Argv'Last),
+ Recursive => True,
+ Ignore_Non_Existing_Files => True);
+ begin
+ for J in Arguments'Range loop
+ Scan_Bind_Arg (Arguments (J).all);
+ end loop;
+ end;
+ end if;
+
+ else
+ Scan_Bind_Arg (Next_Argv);
+ end if;
+ end if;
end;
+
Next_Arg := Next_Arg + 1;
end loop Scan_Args;
+ if Use_Pragma_Linker_Constructor then
+ if Bind_Main_Program then
+ Fail ("switch -a must be used in conjunction with -n or -Lxxx");
+
+ elsif not Gnatbind_Supports_Auto_Init then
+ Fail ("automatic initialisation of elaboration " &
+ "not supported on this platform");
+ end if;
+ end if;
+
-- Test for trailing -o switch
if Opt.Output_File_Name_Present
-- Output usage if requested
if Usage_Requested then
- Bindusg;
+ Bindusg.Display;
end if;
-- Check that the Ada binder file specified has extension .adb and that
Check_Extensions : declare
Length : constant Natural := Output_File_Name'Length;
Last : constant Natural := Output_File_Name'Last;
-
begin
- if Ada_Bind_File then
- if Length <= 4
- or else Output_File_Name (Last - 3 .. Last) /= ".adb"
- then
- Fail ("output file name should have .adb extension");
- end if;
-
- else
- if Length <= 2
- or else Output_File_Name (Last - 1 .. Last) /= ".c"
- then
- Fail ("output file name should have .c extension");
- end if;
+ if Length <= 4
+ or else Output_File_Name (Last - 3 .. Last) /= ".adb"
+ then
+ Fail ("output file name should have .adb extension");
end if;
end Check_Extensions;
end if;
Osint.Add_Default_Search_Dirs;
-- Carry out package initializations. These are initializations which
- -- might logically be performed at elaboration time, but Namet at
- -- least can't be done that way (because it is used in the Compiler),
- -- and we decide to be consistent. Like elaboration, the order in
- -- which these calls are made is in some cases important.
+ -- might logically be performed at elaboration time, and we decide to be
+ -- consistent. Like elaboration, the order in which these calls are made
+ -- is in some cases important.
Csets.Initialize;
- Namet.Initialize;
+ Snames.Initialize;
-- Acquire target parameters
Targparm.Get_Target_Parameters;
+ -- Initialize Cumulative_Restrictions with the restrictions on the target
+ -- scanned from the system.ads file. Then as we read ALI files, we will
+ -- accumulate additional restrictions specified in other files.
+
+ Cumulative_Restrictions := Targparm.Restrictions_On_Target;
+
-- On OpenVMS, when -L is used, all external names used in pragmas Export
-- are in upper case. The reason is that on OpenVMS, the macro-assembler
-- MACASM-32, used to build Stand-Alone Libraries, only understands
if Verbose_Mode then
Write_Eol;
- Write_Str ("GNATBIND ");
- Write_Str (Gnat_Version_String);
- Write_Str (" Copyright 1995-2004 Free Software Foundation, Inc.");
- Write_Eol;
+ Display_Version ("GNATBIND", "1995");
end if;
-- Output usage information if no files
if not More_Lib_Files then
- Bindusg;
+ Bindusg.Display;
Exit_Program (E_Fatal);
end if;
while More_Lib_Files loop
Main_Lib_File := Next_Main_Lib_File;
+ if First_Main_Lib_File = No_File then
+ First_Main_Lib_File := Main_Lib_File;
+ end if;
+
if Verbose_Mode then
if Check_Only then
Write_Str ("Checking: ");
begin
Id := Scan_ALI
- (F => Main_Lib_File,
- T => Text,
- Ignore_ED => Force_RM_Elaboration_Order,
- Err => False);
+ (F => Main_Lib_File,
+ T => Text,
+ Ignore_ED => False,
+ Err => False,
+ Ignore_Errors => Debug_Flag_I,
+ Directly_Scanned => True);
end;
Free (Text);
if No_Run_Time_Mode then
- -- Set standard restrictions
-
- Restrictions_On_Target (No_Finalization) := True;
- Restrictions_On_Target (No_Exception_Handlers) := True;
- Restrictions_On_Target (No_Tasking) := True;
- Restriction_Parameters_On_Target (Max_Tasks) := Uint_0;
-
-- Set standard configuration parameters
- Suppress_Standard_Library_On_Target := True;
- Configurable_Run_Time_Mode := True;
+ Suppress_Standard_Library_On_Target := True;
+ Configurable_Run_Time_Mode := True;
end if;
-- For main ALI files, even if they are interfaces, we get their
-- ALI files.
for Index in ALIs.First .. ALIs.Last loop
- ALIs.Table (Index).Interface := False;
+ ALIs.Table (Index).SAL_Interface := False;
end loop;
-- Add System.Standard_Library to list to ensure that these files are
begin
Id :=
Scan_ALI
- (F => Std_Lib_File,
- T => Text,
- Ignore_ED => Force_RM_Elaboration_Order,
- Err => False);
+ (F => Std_Lib_File,
+ T => Text,
+ Ignore_ED => False,
+ Err => False,
+ Ignore_Errors => Debug_Flag_I);
end;
Free (Text);
end if;
- -- Acquire all information in ALI files that have been read in
+ -- Load ALIs for all dependent units
for Index in ALIs.First .. ALIs.Last loop
- Read_ALI (Index);
+ Read_Withed_ALIs (Index);
end loop;
- -- Warn if -f switch used
-
- if Force_RM_Elaboration_Order then
- Error_Msg
- ("?-f is obsolescent and should not be used");
- Error_Msg
- ("?may result in missing run-time elaboration checks");
- Error_Msg
- ("?use -gnatE, pragma Suppress (Elaboration_Checks) instead");
- end if;
-
-- Quit if some file needs compiling
if No_Object_Specified then
raise Unrecoverable_Error;
end if;
+ -- Output list of ALI files in closure
+
+ if Output_ALI_List then
+ if ALI_List_Filename /= null then
+ Set_List_File (ALI_List_Filename.all);
+ end if;
+
+ for Index in ALIs.First .. ALIs.Last loop
+ declare
+ Full_Afile : constant File_Name_Type :=
+ Find_File (ALIs.Table (Index).Afile, Library);
+ begin
+ Write_Name (Full_Afile);
+ Write_Eol;
+ end;
+ end loop;
+
+ if ALI_List_Filename /= null then
+ Close_List_File;
+ end if;
+ end if;
+
-- Build source file table from the ALI files we have read in
Set_Source_Table;
+ -- If there is main program to bind, set Main_Lib_File to the first
+ -- library file, and the name from which to derive the binder generate
+ -- file to the first ALI file.
+
+ if Bind_Main_Program then
+ Main_Lib_File := First_Main_Lib_File;
+ Set_Current_File_Name_Index (To => 1);
+ end if;
+
-- Check that main library file is a suitable main program
if Bind_Main_Program
and then ALIs.Table (ALIs.First).Main_Program = None
and then not No_Main_Subprogram
then
- Error_Msg_Name_1 := Main_Lib_File;
- Error_Msg ("% does not contain a unit that can be a main program");
+ Get_Name_String
+ (Units.Table (ALIs.Table (ALIs.First).First_Unit).Uname);
+
+ declare
+ Unit_Name : String := Name_Buffer (1 .. Name_Len - 2);
+ begin
+ To_Mixed (Unit_Name);
+ Get_Name_String (ALIs.Table (ALIs.First).Sfile);
+ Add_Str_To_Name_Buffer (":1: ");
+ Add_Str_To_Name_Buffer (Unit_Name);
+ Add_Str_To_Name_Buffer (" cannot be used as a main program");
+ Write_Line (Name_Buffer (1 .. Name_Len));
+ Errors_Detected := Errors_Detected + 1;
+ end;
end if;
-- Perform consistency and correctness checks
Check_Consistency;
Check_Configuration_Consistency;
- -- Acquire restrictions and add them to target restrictions. After
- -- this loop, Restrictions_On_Target entries will be set True for
- -- all partition-wide restrictions specified in the partition.
+ -- List restrictions that could be applied to this partition
- for J in Partition_Restrictions loop
- if Restrictions (J) = 'r' then
- Restrictions_On_Target (J) := True;
- end if;
- end loop;
+ if List_Restrictions then
+ List_Applicable_Restrictions;
+ end if;
-- Complete bind if no errors
Find_Elab_Order;
if Errors_Detected = 0 then
+ -- Display elaboration order if -l was specified
+
if Elab_Order_Output then
- Write_Eol;
- Write_Str ("ELABORATION ORDER");
- Write_Eol;
+ if not Zero_Formatting then
+ Write_Eol;
+ Write_Str ("ELABORATION ORDER");
+ Write_Eol;
+ end if;
for J in Elab_Order.First .. Elab_Order.Last loop
- if not Units.Table (Elab_Order.Table (J)).Interface then
- Write_Str (" ");
+ if not Units.Table (Elab_Order.Table (J)).SAL_Interface then
+ if not Zero_Formatting then
+ Write_Str (" ");
+ end if;
+
Write_Unit_Name
(Units.Table (Elab_Order.Table (J)).Uname);
Write_Eol;
end if;
end loop;
- Write_Eol;
+ if not Zero_Formatting then
+ Write_Eol;
+ end if;
end if;
if not Check_Only then
Gen_Output_File (Output_File_Name.all);
end if;
+
+ -- Display list of sources in the closure (except predefined
+ -- sources) if -R was used.
+
+ if List_Closure then
+ List_Closure_Display : declare
+ Source : File_Name_Type;
+
+ function Put_In_Sources (S : File_Name_Type) return Boolean;
+ -- Check if S is already in table Sources and put in Sources
+ -- if it is not. Return False if the source is already in
+ -- Sources, and True if it is added.
+
+ --------------------
+ -- Put_In_Sources --
+ --------------------
+
+ function Put_In_Sources
+ (S : File_Name_Type) return Boolean is
+ begin
+ for J in 1 .. Closure_Sources.Last loop
+ if Closure_Sources.Table (J) = S then
+ return False;
+ end if;
+ end loop;
+
+ Closure_Sources.Append (S);
+ return True;
+ end Put_In_Sources;
+
+ -- Start of processing for List_Closure_Display
+
+ begin
+ Closure_Sources.Init;
+
+ if not Zero_Formatting then
+ Write_Eol;
+ Write_Str ("REFERENCED SOURCES");
+ Write_Eol;
+ end if;
+
+ for J in reverse Elab_Order.First .. Elab_Order.Last loop
+ Source := Units.Table (Elab_Order.Table (J)).Sfile;
+
+ -- Do not include the sources of the runtime and do not
+ -- include the same source several times.
+
+ if Put_In_Sources (Source)
+ and then not Is_Internal_File_Name (Source)
+ then
+ if not Zero_Formatting then
+ Write_Str (" ");
+ end if;
+
+ Write_Str (Get_Name_String (Source));
+ Write_Eol;
+ end if;
+ end loop;
+
+ -- Subunits do not appear in the elaboration table because
+ -- they are subsumed by their parent units, but we need to
+ -- list them for other tools. For now they are listed after
+ -- other files, rather than right after their parent, since
+ -- there is no easy link between the elaboration table and
+ -- the ALIs table ??? As subunits may appear repeatedly in
+ -- the list, if the parent unit appears in the context of
+ -- several units in the closure, duplicates are suppressed.
+
+ for J in Sdep.First .. Sdep.Last loop
+ Source := Sdep.Table (J).Sfile;
+
+ if Sdep.Table (J).Subunit_Name /= No_Name
+ and then Put_In_Sources (Source)
+ and then not Is_Internal_File_Name (Source)
+ then
+ if not Zero_Formatting then
+ Write_Str (" ");
+ end if;
+
+ Write_Str (Get_Name_String (Source));
+ Write_Eol;
+ end if;
+ end loop;
+
+ if not Zero_Formatting then
+ Write_Eol;
+ end if;
+ end List_Closure_Display;
+ end if;
end if;
end if;
Total_Warnings := Total_Warnings + Warnings_Detected;
end;
- -- All done. Set proper exit status.
+ -- All done. Set proper exit status
Finalize_Binderr;
Namet.Finalize;
if Total_Errors > 0 then
Exit_Program (E_Errors);
+
elsif Total_Warnings > 0 then
Exit_Program (E_Warnings);
+
else
- Exit_Program (E_Success);
- end if;
+ -- Do not call Exit_Program (E_Success), so that finalization occurs
+ -- normally.
+ null;
+ end if;
end Gnatbind;