X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gcc%2Fada%2Fs-stache.ads;fp=gcc%2Fada%2Fs-stache.ads;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=935c69c93ccbc12830ce56e735b609f45d8d5725;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gcc/ada/s-stache.ads b/gcc/ada/s-stache.ads deleted file mode 100644 index 935c69c9..00000000 --- a/gcc/ada/s-stache.ads +++ /dev/null @@ -1,106 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS -- --- -- --- S Y S T E M . S T A C K _ C H E C K I N G -- --- -- --- S p e c -- --- -- --- $Revision: 1.1.16.1 $ --- -- --- Copyright (C) 1999-2001 Free Software Foundation, Inc. -- --- -- --- GNARL 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. GNARL 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 GNARL; see file COPYING. If not, write -- --- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- --- MA 02111-1307, USA. -- --- -- --- As a special exception, if other files instantiate generics from this -- --- unit, or you link this unit with other files to produce an executable, -- --- this unit does not by itself cause the resulting executable to be -- --- covered by the GNU General Public License. This exception does not -- --- however invalidate any other reasons why the executable file might be -- --- covered by the GNU Public License. -- --- -- --- GNARL was developed by the GNARL team at Florida State University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - --- This package provides a system-independent implementation of stack --- checking using comparison with stack base and limit. - -with System.Storage_Elements; - -pragma Polling (Off); --- Turn off polling, we do not want polling to take place during stack --- checking operations. It causes infinite loops and other problems. - -package System.Stack_Checking is - type Stack_Info is record - Limit : System.Address := System.Null_Address; - Base : System.Address := System.Null_Address; - Size : System.Storage_Elements.Storage_Offset := 0; - end record; - -- This record may be part of a larger data structure like the - -- task control block in the tasking case. - -- This specific layout has the advantage of being compatible with the - -- Intel x86 BOUNDS instruction. - - type Stack_Access is access all Stack_Info; - -- Unique local storage associated with a specific task. This storage is - -- used for the stack base and limit, and is returned by Checked_Self. - -- Only self may write this information, it may be read by any task. - -- At no time the address range Limit .. Base (or Base .. Limit for - -- upgrowing stack) may contain any address that is part of another stack. - -- The Stack_Access may be part of a larger data structure. - - Multi_Processor : constant Boolean := False; -- Not supported yet - - ---------------------- - -- Client Interface -- - ---------------------- - - procedure Set_Stack_Size - (Stack_Size : System.Storage_Elements.Storage_Offset); - -- Specify the stack size for the current task. - - procedure Update_Stack_Cache (Stack : Stack_Access); - -- Set the stack cache for the current task. Note that this is only - -- for optimization purposes, nothing can be assumed about the - -- contents of the cache at any time, see Set_Stack_Info. - - procedure Invalidate_Stack_Cache (Any_Stack : Stack_Access); - -- Invalidate cache entries for the task T that owns Any_Stack. - -- This causes the Set_Stack_Info function to be called during - -- the next stack check done by T. This can be used to interrupt - -- task T asynchronously. - -- Stack_Check should be called in loops for this to work reliably. - - function Stack_Check (Stack_Address : System.Address) return Stack_Access; - -- This version of Stack_Check should not be inlined. - -private - - Null_Stack_Info : aliased Stack_Info := - (Limit => System.Null_Address, - Base => System.Null_Address, - Size => 0); - -- Use explicit assignment to avoid elaboration code (call to _init_proc). - - Null_Stack : constant Stack_Access := Null_Stack_Info'Access; - -- Stack_Access value that will return a Stack_Base and Stack_Limit - -- that fail any stack check. - - Cache : aliased Stack_Access := Null_Stack; - - pragma Export (C, Cache, "_gnat_stack_cache"); - pragma Export (C, Stack_Check, "_gnat_stack_check"); - -end System.Stack_Checking;