Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/s-traent.ads @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 ------------------------------------------------------------------------------ | |
| 2 -- -- | |
| 3 -- GNAT RUN-TIME COMPONENTS -- | |
| 4 -- -- | |
| 5 -- S Y S T E M . T R A C E B A C K _ E N T R I E S -- | |
| 6 -- -- | |
| 7 -- S p e c -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 2003-2017, Free Software Foundation, Inc. -- | |
| 10 -- -- | |
| 11 -- This specification is derived from the Ada Reference Manual for use with -- | |
| 12 -- GNAT. The copyright notice above, and the license provisions that follow -- | |
| 13 -- apply solely to the contents of the part following the private keyword. -- | |
| 14 -- -- | |
| 15 -- GNAT is free software; you can redistribute it and/or modify it under -- | |
| 16 -- terms of the GNU General Public License as published by the Free Soft- -- | |
| 17 -- ware Foundation; either version 3, or (at your option) any later ver- -- | |
| 18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
| 19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
| 20 -- or FITNESS FOR A PARTICULAR PURPOSE. -- | |
| 21 -- -- | |
| 22 -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 23 -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 24 -- version 3.1, as published by the Free Software Foundation. -- | |
| 25 -- -- | |
| 26 -- You should have received a copy of the GNU General Public License and -- | |
| 27 -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 29 -- <http://www.gnu.org/licenses/>. -- | |
| 30 -- -- | |
| 31 -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 32 -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
| 33 -- -- | |
| 34 ------------------------------------------------------------------------------ | |
| 35 | |
| 36 -- This package offers an abstraction of what is stored in traceback arrays | |
| 37 -- for call-chain computation purposes. By default, as defined in this | |
| 38 -- version of the package, an entry is a mere code location representing the | |
| 39 -- address of a call instruction part of the call-chain. | |
| 40 | |
| 41 pragma Polling (Off); | |
| 42 -- We must turn polling off for this unit, because otherwise we get | |
| 43 -- elaboration circularities with Ada.Exceptions. | |
| 44 | |
| 45 pragma Compiler_Unit_Warning; | |
| 46 | |
| 47 package System.Traceback_Entries is | |
| 48 pragma Preelaborate; | |
| 49 | |
| 50 subtype Traceback_Entry is System.Address; | |
| 51 -- This subtype defines what each traceback array entry contains | |
| 52 | |
| 53 Null_TB_Entry : constant Traceback_Entry := System.Null_Address; | |
| 54 -- This is the value to be used when initializing an entry | |
| 55 | |
| 56 type Tracebacks_Array is array (Positive range <>) of Traceback_Entry; | |
| 57 | |
| 58 function PC_For (TB_Entry : Traceback_Entry) return System.Address; | |
| 59 pragma Inline (PC_For); | |
| 60 -- Returns the address of the call instruction associated with the | |
| 61 -- provided entry. | |
| 62 | |
| 63 function TB_Entry_For (PC : System.Address) return Traceback_Entry; | |
| 64 pragma Inline (TB_Entry_For); | |
| 65 -- Returns an entry representing a frame for a call instruction at PC | |
| 66 | |
| 67 end System.Traceback_Entries; |