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Diffstat (limited to 'gcc-4.2.1/gcc/ada/back_end.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/back_end.adb | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/gcc-4.2.1/gcc/ada/back_end.adb b/gcc-4.2.1/gcc/ada/back_end.adb deleted file mode 100644 index a77edd978..000000000 --- a/gcc-4.2.1/gcc/ada/back_end.adb +++ /dev/null @@ -1,304 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- B A C K _ E N D -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2006, 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, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, USA. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - -with Atree; use Atree; -with Debug; use Debug; -with Elists; use Elists; -with Lib; use Lib; -with Osint; use Osint; -with Opt; use Opt; -with Osint.C; use Osint.C; -with Namet; use Namet; -with Nlists; use Nlists; -with Stand; use Stand; -with Sinput; use Sinput; -with Stringt; use Stringt; -with Switch; use Switch; -with Switch.C; use Switch.C; -with System; use System; -with Types; use Types; - -package body Back_End is - - ------------------- - -- Call_Back_End -- - ------------------- - - procedure Call_Back_End (Mode : Back_End_Mode_Type) is - - -- The File_Record type has a lot of components that are meaningless - -- to the back end, so a new record is created here to contain the - -- needed information for each file. - - type Needed_File_Info_Type is record - File_Name : File_Name_Type; - First_Sloc : Source_Ptr; - Last_Sloc : Source_Ptr; - Num_Source_Lines : Nat; - end record; - - File_Info_Array : - array (Main_Unit .. Last_Unit) of Needed_File_Info_Type; - - procedure gigi ( - gnat_root : Int; - max_gnat_node : Int; - number_name : Nat; - nodes_ptr : Address; - - next_node_ptr : Address; - prev_node_ptr : Address; - elists_ptr : Address; - elmts_ptr : Address; - - strings_ptr : Address; - string_chars_ptr : Address; - list_headers_ptr : Address; - number_units : Int; - - file_info_ptr : Address; - gigi_standard_integer : Entity_Id; - gigi_standard_long_long_float : Entity_Id; - gigi_standard_exception_type : Entity_Id; - gigi_operating_mode : Back_End_Mode_Type); - - pragma Import (C, gigi); - - S : Source_File_Index; - - begin - -- Skip call if in -gnatdH mode - - if Debug_Flag_HH then - return; - end if; - - for J in Main_Unit .. Last_Unit loop - S := Source_Index (J); - File_Info_Array (J).File_Name := File_Name (S); - File_Info_Array (J).First_Sloc := Source_Text (S)'First; - File_Info_Array (J).Last_Sloc := Source_Text (S)'Last; - File_Info_Array (J).Num_Source_Lines := Num_Source_Lines (S); - end loop; - - gigi ( - gnat_root => Int (Cunit (Main_Unit)), - max_gnat_node => Int (Last_Node_Id - First_Node_Id + 1), - number_name => Name_Entries_Count, - nodes_ptr => Nodes_Address, - - next_node_ptr => Next_Node_Address, - prev_node_ptr => Prev_Node_Address, - elists_ptr => Elists_Address, - elmts_ptr => Elmts_Address, - - strings_ptr => Strings_Address, - string_chars_ptr => String_Chars_Address, - list_headers_ptr => Lists_Address, - number_units => Num_Units, - - file_info_ptr => File_Info_Array'Address, - gigi_standard_integer => Standard_Integer, - gigi_standard_long_long_float => Standard_Long_Long_Float, - gigi_standard_exception_type => Standard_Exception_Type, - gigi_operating_mode => Mode); - end Call_Back_End; - - ----------------------------- - -- Scan_Compiler_Arguments -- - ----------------------------- - - procedure Scan_Compiler_Arguments is - - Next_Arg : Pos := 1; - - subtype Big_String is String (Positive); - type BSP is access Big_String; - - type Arg_Array is array (Nat) of BSP; - type Arg_Array_Ptr is access Arg_Array; - - -- Import flag_stack_check from toplev.c - - flag_stack_check : Int; - pragma Import (C, flag_stack_check); -- Import from toplev.c - - save_argc : Nat; - pragma Import (C, save_argc); -- Import from toplev.c - - save_argv : Arg_Array_Ptr; - pragma Import (C, save_argv); -- Import from toplev.c - - Output_File_Name_Seen : Boolean := False; - -- Set to True after having scanned the file_name for - -- switch "-gnatO file_name" - - -- Local functions - - function Len_Arg (Arg : Pos) return Nat; - -- Determine length of argument number Arg on the original - -- command line from gnat1 - - procedure Scan_Back_End_Switches (Switch_Chars : String); - -- Procedure to scan out switches stored in Switch_Chars. The first - -- character is known to be a valid switch character, and there are no - -- blanks or other switch terminator characters in the string, so the - -- entire string should consist of valid switch characters, except that - -- an optional terminating NUL character is allowed. - -- - -- Back end switches have already been checked and processed by GCC - -- in toplev.c, so no errors can occur and control will always return. - -- The switches must still be scanned to skip the arguments of the - -- "-o" or the (undocumented) "-dumpbase" switch, by incrementing - -- the Next_Arg variable. The "-dumpbase" switch is used to set the - -- basename for GCC dumpfiles. - - ------------- - -- Len_Arg -- - ------------- - - function Len_Arg (Arg : Pos) return Nat is - begin - for J in 1 .. Nat'Last loop - if save_argv (Arg).all (Natural (J)) = ASCII.NUL then - return J - 1; - end if; - end loop; - - raise Program_Error; - end Len_Arg; - - ---------------------------- - -- Scan_Back_End_Switches -- - ---------------------------- - - procedure Scan_Back_End_Switches (Switch_Chars : String) is - First : constant Positive := Switch_Chars'First + 1; - Last : Natural := Switch_Chars'Last; - - begin - if Last >= First - and then Switch_Chars (Last) = ASCII.NUL - then - Last := Last - 1; - end if; - - -- For these switches, skip following argument and do not - -- store either the switch or the following argument - - if Switch_Chars (First .. Last) = "o" - or else Switch_Chars (First .. Last) = "dumpbase" - or else Switch_Chars (First .. Last) = "-param" - - then - Next_Arg := Next_Arg + 1; - - -- Do not record -quiet switch - - elsif Switch_Chars (First .. Last) = "quiet" then - null; - - else - -- Store any other GCC switches - - Store_Compilation_Switch (Switch_Chars); - end if; - end Scan_Back_End_Switches; - - -- Start of processing for Scan_Compiler_Arguments - - begin - -- Acquire stack checking mode directly from GCC - - Opt.Stack_Checking_Enabled := (flag_stack_check /= 0); - - -- Loop through command line arguments, storing them for later access - - while Next_Arg < save_argc loop - Look_At_Arg : declare - Argv_Ptr : constant BSP := save_argv (Next_Arg); - Argv_Len : constant Nat := Len_Arg (Next_Arg); - Argv : constant String := Argv_Ptr (1 .. Natural (Argv_Len)); - - begin - -- If the previous switch has set the Output_File_Name_Present - -- flag (that is we have seen a -gnatO), then the next argument - -- is the name of the output object file. - - if Output_File_Name_Present - and then not Output_File_Name_Seen - then - if Is_Switch (Argv) then - Fail ("Object file name missing after -gnatO"); - - else - Set_Output_Object_File_Name (Argv); - Output_File_Name_Seen := True; - end if; - - -- If the previous switch has set the Search_Directory_Present - -- flag (that is if we have just seen -I), then the next - -- argument is a search directory path. - - elsif Search_Directory_Present then - if Is_Switch (Argv) then - Fail ("search directory missing after -I"); - else - Add_Src_Search_Dir (Argv); - Search_Directory_Present := False; - end if; - - elsif not Is_Switch (Argv) then -- must be a file name - Add_File (Argv); - - -- We must recognize -nostdinc to suppress visibility on the - -- standard GNAT RTL sources. This is also a gcc switch. - - elsif Argv (Argv'First + 1 .. Argv'Last) = "nostdinc" then - Opt.No_Stdinc := True; - Scan_Back_End_Switches (Argv); - - -- We must recognize -nostdlib to suppress visibility on the - -- standard GNAT RTL objects. - - elsif Argv (Argv'First + 1 .. Argv'Last) = "nostdlib" then - Opt.No_Stdlib := True; - - elsif Is_Front_End_Switch (Argv) then - Scan_Front_End_Switches (Argv); - - -- All non-front-end switches are back-end switches - - else - Scan_Back_End_Switches (Argv); - end if; - end Look_At_Arg; - - Next_Arg := Next_Arg + 1; - end loop; - end Scan_Compiler_Arguments; - -end Back_End; |