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Diffstat (limited to 'gcc-4.4.3/gcc/ada/s-secsta.ads')
| -rw-r--r-- | gcc-4.4.3/gcc/ada/s-secsta.ads | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/gcc-4.4.3/gcc/ada/s-secsta.ads b/gcc-4.4.3/gcc/ada/s-secsta.ads deleted file mode 100644 index cf9813e1c..000000000 --- a/gcc-4.4.3/gcc/ada/s-secsta.ads +++ /dev/null @@ -1,120 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- S Y S T E M . S E C O N D A R Y _ S T A C K -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2009, 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 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 -- --- <http://www.gnu.org/licenses/>. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - -pragma Warnings (Off); -pragma Compiler_Unit; -pragma Warnings (On); - -with System.Storage_Elements; - -package System.Secondary_Stack is - - package SSE renames System.Storage_Elements; - - Default_Secondary_Stack_Size : Natural := 10 * 1024; - -- Default size of a secondary stack. May be modified by binder -D switch - -- which causes the binder to generate an appropriate assignment in the - -- binder generated file. - - procedure SS_Init - (Stk : in out Address; - Size : Natural := Default_Secondary_Stack_Size); - -- Initialize the secondary stack with a main stack of the given Size. - -- - -- If System.Parameters.Sec_Stack_Ratio equals Dynamic, Stk is really an - -- OUT parameter that will be allocated on the heap. Then all further - -- allocations which do not overflow the main stack will not generate - -- dynamic (de)allocation calls. If the main Stack overflows, a new - -- chuck of at least the same size will be allocated and linked to the - -- previous chunk. - -- - -- Otherwise (Sec_Stack_Ratio between 0 and 100), Stk is an IN parameter - -- that is already pointing to a Stack_Id. The secondary stack in this case - -- is fixed, and any attempt to allocated more than the initial size will - -- result in a Storage_Error being raised. - -- - -- Note: the reason that Stk is passed is that SS_Init is called before - -- the proper interface is established to obtain the address of the - -- stack using System.Soft_Links.Get_Sec_Stack_Addr. - - procedure SS_Allocate - (Addr : out Address; - Storage_Size : SSE.Storage_Count); - -- Allocate enough space for a 'Storage_Size' bytes object with Maximum - -- alignment. The address of the allocated space is returned in Addr. - - procedure SS_Free (Stk : in out Address); - -- Release the memory allocated for the Secondary Stack. That is - -- to say, all the allocated chunks. Upon return, Stk will be set - -- to System.Null_Address. - - type Mark_Id is private; - -- Type used to mark the stack for mark/release processing - - function SS_Mark return Mark_Id; - -- Return the Mark corresponding to the current state of the stack - - procedure SS_Release (M : Mark_Id); - -- Restore the state of the stack corresponding to the mark M. If an - -- additional chunk have been allocated, it will never be freed during a - - function SS_Get_Max return Long_Long_Integer; - -- Return maximum used space in storage units for the current secondary - -- stack. For a dynamically allocated secondary stack, the returned - -- result is always -1. For a statically allocated secondary stack, - -- the returned value shows the largest amount of space allocated so - -- far during execution of the program to the current secondary stack, - -- i.e. the secondary stack for the current task. - - generic - with procedure Put_Line (S : String); - procedure SS_Info; - -- Debugging procedure used to print out secondary Stack allocation - -- information. This procedure is generic in order to avoid a direct - -- dependance on a particular IO package. - -private - SS_Pool : Integer; - -- Unused entity that is just present to ease the sharing of the pool - -- mechanism for specific allocation/deallocation in the compiler - - type SS_Ptr is new SSE.Integer_Address; - -- Stack pointer value for secondary stack - - type Mark_Id is record - Sstk : System.Address; - Sptr : SS_Ptr; - end record; - -- A mark value contains the address of the secondary stack structure, - -- as returned by System.Soft_Links.Get_Sec_Stack_Addr, and a stack - -- pointer value corresponding to the point of the mark call. - -end System.Secondary_Stack; |