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Diffstat (limited to 'gcc/ada/s-atopri.adb')
| -rw-r--r-- | gcc/ada/s-atopri.adb | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/gcc/ada/s-atopri.adb b/gcc/ada/s-atopri.adb deleted file mode 100644 index 145cbb6c9db..00000000000 --- a/gcc/ada/s-atopri.adb +++ /dev/null @@ -1,201 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME COMPONENTS -- --- -- --- S Y S T E M . A T O M I C _ P R I M I T I V E S -- --- -- --- B o d y -- --- -- --- Copyright (C) 2012, 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. -- --- -- ------------------------------------------------------------------------------- - -package body System.Atomic_Primitives is - - ---------------------- - -- Lock_Free_Read_8 -- - ---------------------- - - function Lock_Free_Read_8 (Ptr : Address) return uint8 is - begin - if uint8'Atomic_Always_Lock_Free then - return Atomic_Load_8 (Ptr, Acquire); - else - raise Program_Error; - end if; - end Lock_Free_Read_8; - - ----------------------- - -- Lock_Free_Read_16 -- - ----------------------- - - function Lock_Free_Read_16 (Ptr : Address) return uint16 is - begin - if uint16'Atomic_Always_Lock_Free then - return Atomic_Load_16 (Ptr, Acquire); - else - raise Program_Error; - end if; - end Lock_Free_Read_16; - - ----------------------- - -- Lock_Free_Read_32 -- - ----------------------- - - function Lock_Free_Read_32 (Ptr : Address) return uint32 is - begin - if uint32'Atomic_Always_Lock_Free then - return Atomic_Load_32 (Ptr, Acquire); - else - raise Program_Error; - end if; - end Lock_Free_Read_32; - - ----------------------- - -- Lock_Free_Read_64 -- - ----------------------- - - function Lock_Free_Read_64 (Ptr : Address) return uint64 is - begin - if uint64'Atomic_Always_Lock_Free then - return Atomic_Load_64 (Ptr, Acquire); - else - raise Program_Error; - end if; - end Lock_Free_Read_64; - - --------------------------- - -- Lock_Free_Try_Write_8 -- - --------------------------- - - function Lock_Free_Try_Write_8 - (Ptr : Address; - Expected : in out uint8; - Desired : uint8) return Boolean - is - Actual : uint8; - - begin - if Expected /= Desired then - - if uint8'Atomic_Always_Lock_Free then - Actual := Sync_Compare_And_Swap_8 (Ptr, Expected, Desired); - else - raise Program_Error; - end if; - - if Actual /= Expected then - Expected := Actual; - return False; - end if; - end if; - - return True; - end Lock_Free_Try_Write_8; - - ---------------------------- - -- Lock_Free_Try_Write_16 -- - ---------------------------- - - function Lock_Free_Try_Write_16 - (Ptr : Address; - Expected : in out uint16; - Desired : uint16) return Boolean - is - Actual : uint16; - - begin - if Expected /= Desired then - - if uint16'Atomic_Always_Lock_Free then - Actual := Sync_Compare_And_Swap_16 (Ptr, Expected, Desired); - else - raise Program_Error; - end if; - - if Actual /= Expected then - Expected := Actual; - return False; - end if; - end if; - - return True; - end Lock_Free_Try_Write_16; - - ---------------------------- - -- Lock_Free_Try_Write_32 -- - ---------------------------- - - function Lock_Free_Try_Write_32 - (Ptr : Address; - Expected : in out uint32; - Desired : uint32) return Boolean - is - Actual : uint32; - - begin - if Expected /= Desired then - - if uint32'Atomic_Always_Lock_Free then - Actual := Sync_Compare_And_Swap_32 (Ptr, Expected, Desired); - else - raise Program_Error; - end if; - - if Actual /= Expected then - Expected := Actual; - return False; - end if; - end if; - - return True; - end Lock_Free_Try_Write_32; - - ---------------------------- - -- Lock_Free_Try_Write_64 -- - ---------------------------- - - function Lock_Free_Try_Write_64 - (Ptr : Address; - Expected : in out uint64; - Desired : uint64) return Boolean - is - Actual : uint64; - - begin - if Expected /= Desired then - - if uint64'Atomic_Always_Lock_Free then - Actual := Sync_Compare_And_Swap_64 (Ptr, Expected, Desired); - else - raise Program_Error; - end if; - - if Actual /= Expected then - Expected := Actual; - return False; - end if; - end if; - - return True; - end Lock_Free_Try_Write_64; -end System.Atomic_Primitives; |