From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/ada/a-comlin.ads | 139 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 gcc/ada/a-comlin.ads (limited to 'gcc/ada/a-comlin.ads') diff --git a/gcc/ada/a-comlin.ads b/gcc/ada/a-comlin.ads new file mode 100644 index 000000000..55d0a5005 --- /dev/null +++ b/gcc/ada/a-comlin.ads @@ -0,0 +1,139 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- A D A . C O M M A N D _ L I N E -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1992-2010, Free Software Foundation, Inc. -- +-- -- +-- This specification is derived from the Ada Reference Manual for use with -- +-- GNAT. The copyright notice above, and the license provisions that follow -- +-- apply solely to the contents of the part following the private keyword. -- +-- -- +-- 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 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. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- . -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +pragma Compiler_Unit; + +package Ada.Command_Line is + pragma Preelaborate; + + function Argument_Count return Natural; + -- If the external execution environment supports passing arguments to a + -- program, then Argument_Count returns the number of arguments passed to + -- the program invoking the function. Otherwise it return 0. + -- + -- In GNAT: Corresponds to (argc - 1) in C. + + function Argument (Number : Positive) return String; + -- If the external execution environment supports passing arguments to + -- a program, then Argument returns an implementation-defined value + -- corresponding to the argument at relative position Number. If Number + -- is outside the range 1 .. Argument_Count, then Constraint_Error is + -- propagated. + -- + -- in GNAT: Corresponds to argv [n] (for n > 0) in C. + + function Command_Name return String; + -- If the external execution environment supports passing arguments to + -- a program, then Command_Name returns an implementation-defined value + -- corresponding to the name of the command invoking the program. + -- Otherwise Command_Name returns the null string. + -- + -- in GNAT: Corresponds to argv [0] in C. + + type Exit_Status is new Integer; + + Success : constant Exit_Status; + Failure : constant Exit_Status; + + procedure Set_Exit_Status (Code : Exit_Status); + + ------------------------------------ + -- Note on Interface Requirements -- + ------------------------------------ + + -- Services in this package are not supported during the elaboration of an + -- auto-initialized Stand-Alone Library. + + -- If the main program is in Ada, this package works as specified without + -- any other work than the normal steps of WITH'ing the package and then + -- calling the desired routines. + + -- If the main program is not in Ada, then the information must be made + -- available for this package to work correctly. In particular, it is + -- required that the global variable "gnat_argc" contain the number of + -- arguments, and that the global variable "gnat_argv" points to an + -- array of null-terminated strings, the first entry being the command + -- name, and the remaining entries being the command arguments. + + -- These correspond to the normal argc/argv variables passed to a C + -- main program, and the following is an example of a complete C main + -- program that stores the required information: + + -- main(int argc, char **argv, char **envp) + -- { + -- extern int gnat_argc; + -- extern char **gnat_argv; + -- extern char **gnat_envp; + -- gnat_argc = argc; + -- gnat_argv = argv; + -- gnat_envp = envp; + + -- adainit(); + -- adamain(); + -- adafinal(); + -- } + + -- The assignment statements ensure that the necessary information is + -- available for finding the command name and command line arguments. + +private + Success : constant Exit_Status := 0; + Failure : constant Exit_Status := 1; + + -- The following locations support the operation of the package + -- Ada.Command_Line.Remove, which provides facilities for logically + -- removing arguments from the command line. If one of the remove + -- procedures is called in this unit, then Remove_Args/Remove_Count + -- are set to indicate which arguments are removed. If no such calls + -- have been made, then Remove_Args is null. + + Remove_Count : Natural; + -- Number of arguments reflecting removals. Not defined unless + -- Remove_Args is non-null. + + type Arg_Nums is array (Positive range <>) of Positive; + type Arg_Nums_Ptr is access Arg_Nums; + -- An array that maps logical argument numbers (reflecting removal) + -- to physical argument numbers (e.g. if the first argument has been + -- removed, but not the second, then Arg_Nums (1) will be set to 2. + + Remove_Args : Arg_Nums_Ptr := null; + -- Left set to null if no remove calls have been made, otherwise set + -- to point to an appropriate mapping array. Only the first Remove_Count + -- elements are relevant. + + pragma Import (C, Set_Exit_Status, "__gnat_set_exit_status"); + +end Ada.Command_Line; -- cgit v1.2.3