diff options
Diffstat (limited to 'src/google/protobuf/stubs/atomicops_internals_ppc_gcc.h')
| -rw-r--r-- | src/google/protobuf/stubs/atomicops_internals_ppc_gcc.h | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/src/google/protobuf/stubs/atomicops_internals_ppc_gcc.h b/src/google/protobuf/stubs/atomicops_internals_ppc_gcc.h deleted file mode 100644 index d477dc6d..00000000 --- a/src/google/protobuf/stubs/atomicops_internals_ppc_gcc.h +++ /dev/null @@ -1,155 +0,0 @@ -// Protocol Buffers - Google's data interchange format -// Copyright 2015 Google Inc. All rights reserved. -// https://developers.google.com/protocol-buffers/ -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// Author: ogabbay@advaoptical.com (Oded Gabbay) -// Cleaned up by: bsilver16384@gmail.com (Brian Silverman) -// -// This file is an internal atomic implementation, use atomicops.h instead. - -#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_PPC_GCC_H_ -#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_PPC_GCC_H_ - -#define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory") - -namespace google { -namespace protobuf { -namespace internal { - -inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32 *ptr, - Atomic32 old_value, - Atomic32 new_value) { - Atomic32 prev; - - __asm__ __volatile__( - "0: \n\t" - "lwarx %[prev],0,%[ptr] \n\t" - "cmpw 0,%[prev],%[old_value] \n\t" - "bne- 1f \n\t" - "stwcx. %[new_value],0,%[ptr] \n\t" - "bne- 0b \n\t" - "1: \n\t" - : [prev] "=&r"(prev), "+m"(*ptr) - : [ptr] "r"(ptr), [old_value] "r"(old_value), [new_value] "r"(new_value) - : "cc", "memory"); - - return prev; -} - -inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32 *ptr, - Atomic32 new_value) { - Atomic32 old; - - __asm__ __volatile__( - "0: \n\t" - "lwarx %[old],0,%[ptr] \n\t" - "stwcx. %[new_value],0,%[ptr] \n\t" - "bne- 0b \n\t" - : [old] "=&r"(old), "+m"(*ptr) - : [ptr] "r"(ptr), [new_value] "r"(new_value) - : "cc", "memory"); - - return old; -} - -inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32 *ptr, - Atomic32 increment) { - Atomic32 temp; - - __asm__ __volatile__( - "0: \n\t" - "lwarx %[temp],0,%[ptr] \n\t" - "add %[temp],%[increment],%[temp] \n\t" - "stwcx. %[temp],0,%[ptr] \n\t" - "bne- 0b \n\t" - : [temp] "=&r"(temp) - : [increment] "r"(increment), [ptr] "r"(ptr) - : "cc", "memory"); - - return temp; -} - -inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32 *ptr, - Atomic32 increment) { - MemoryBarrierInternal(); - Atomic32 res = NoBarrier_AtomicIncrement(ptr, increment); - MemoryBarrierInternal(); - return res; -} - -inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32 *ptr, - Atomic32 old_value, Atomic32 new_value) { - Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value); - MemoryBarrierInternal(); - return res; -} - -inline Atomic32 Release_CompareAndSwap(volatile Atomic32 *ptr, - Atomic32 old_value, Atomic32 new_value) { - MemoryBarrierInternal(); - Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value); - return res; -} - -inline void NoBarrier_Store(volatile Atomic32 *ptr, Atomic32 value) { - *ptr = value; -} - -inline void MemoryBarrierInternal() { __asm__ __volatile__("sync" : : : "memory"); } - -inline void Acquire_Store(volatile Atomic32 *ptr, Atomic32 value) { - *ptr = value; - MemoryBarrierInternal(); -} - -inline void Release_Store(volatile Atomic32 *ptr, Atomic32 value) { - MemoryBarrierInternal(); - *ptr = value; -} - -inline Atomic32 NoBarrier_Load(volatile const Atomic32 *ptr) { return *ptr; } - -inline Atomic32 Acquire_Load(volatile const Atomic32 *ptr) { - Atomic32 value = *ptr; - MemoryBarrierInternal(); - return value; -} - -inline Atomic32 Release_Load(volatile const Atomic32 *ptr) { - MemoryBarrierInternal(); - return *ptr; -} - -} // namespace internal -} // namespace protobuf -} // namespace google - -#undef ATOMICOPS_COMPILER_BARRIER - -#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_PPC_GCC_H_ |