| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- B A C K _ E N D -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2001 Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 2, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNAT; see file COPYING. If not, write -- |
| -- to the Free Software Foundation, 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- Call the back end with all the information needed. Also contains other |
| -- back-end specific interfaces required by the front end. |
| |
| package Back_End is |
| |
| type Back_End_Mode_Type is ( |
| Generate_Object, |
| -- Full back end operation with object file generation |
| |
| Declarations_Only, |
| -- Partial back end operation with no object file generation. In this |
| -- mode the only useful action performed by gigi is to process all |
| -- declarations issuing any error messages (in partcicular those to |
| -- do with rep clauses), and to back annotate representation info. |
| |
| Skip); |
| -- Back end call is skipped (syntax only, or errors found) |
| |
| pragma Convention (C, Back_End_Mode_Type); |
| for Back_End_Mode_Type use (0, 1, 2); |
| |
| procedure Call_Back_End (Mode : Back_End_Mode_Type); |
| -- Call back end, i.e. make call to driver traversing the tree and |
| -- outputting code. This call is made with all tables locked. |
| -- The back end is responsible for unlocking any tables it may need |
| -- to change, and locking them again before returning. |
| |
| procedure Scan_Compiler_Arguments; |
| -- Acquires command-line parameters passed to the compiler and processes |
| -- them. Calls Scan_Front_End_Switches for any front-end switches |
| -- encountered. |
| -- |
| -- The processing of arguments is private to the back end, since |
| -- the way of acquiring the arguments as well as the set of allowable |
| -- back end switches is different depending on the particular back end |
| -- being used. |
| -- |
| -- Any processed switches that influence the result of a compilation |
| -- must be added to the Compilation_Arguments table. |
| |
| end Back_End; |
