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Diffstat (limited to 'gcc-4.2.1/gcc/ada/back_end.ads')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/back_end.ads | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/back_end.ads b/gcc-4.2.1/gcc/ada/back_end.ads new file mode 100644 index 000000000..89f30bc1d --- /dev/null +++ b/gcc-4.2.1/gcc/ada/back_end.ads @@ -0,0 +1,67 @@ +------------------------------------------------------------------------------ +-- -- +-- 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; |