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audk/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.nasm

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MdePkg BaseSynchronizationLib: Convert X64/InterlockedDecrement.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/InterlockedDecrement.asm to X64/InterlockedDecrement.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
2016-05-31 03:52:14 +02:00
;------------------------------------------------------------------------------
;
MdePkg/SynchronizationLib: fix Interlocked[De|In]crement return value REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1197 Today's InterlockedIncrement()/InterlockedDecrement() guarantees to perform atomic increment/decrement but doesn't guarantee the return value equals to the new value. The patch fixes the behavior to use "XADD" instruction to guarantee the return value equals to the new value. The patch calls intrinsic functions for MSVC tool chain, calls the NASM implementation for INTEL tool chain and calls GCC inline assembly implementation (GccInline.c) for GCC tool chain. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com>
2018-09-07 11:26:14 +02:00
; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
MdePkg: Replace BSD License with BSD+Patent License https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-04-04 01:06:00 +02:00
; SPDX-License-Identifier: BSD-2-Clause-Patent
MdePkg BaseSynchronizationLib: Convert X64/InterlockedDecrement.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/InterlockedDecrement.asm to X64/InterlockedDecrement.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
2016-05-31 03:52:14 +02:00
;
; Module Name:
;
; InterlockedDecrement.Asm
;
; Abstract:
;
; InterlockedDecrement function
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; UINT32
; EFIAPI
MdePkg/BaseSynchronizationLib: Fix function names in function headers Some of the function names in function header comment blocks in assembly files do not match the symbol name in the assembly sources. Update function header comment blocks to match symbol name. Cc: Liming Gao <liming.gao@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Andrew Fish <afish@apple.com> Cc: Jeff Fan <jeff.fan@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2016-11-17 20:08:38 +01:00
; InternalSyncDecrement (
MdePkg/BaseSynchronizationLib: Add volatile Interlocked*() APIs The SpinLock functions in the SynchronicationLib use volatile parameters to keep compiler from optimizing these functions too much. The volatile keyword is missing from the Interlocked*() functions in this same library instance. Update the library instance to consistently use volatile on all functions in the SynchronizationLib class. Cc: Liming Gao <liming.gao@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Andrew Fish <afish@apple.com> Cc: Jeff Fan <jeff.fan@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2016-11-16 23:37:15 +01:00
; IN volatile UINT32 *Value
MdePkg BaseSynchronizationLib: Convert X64/InterlockedDecrement.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/InterlockedDecrement.asm to X64/InterlockedDecrement.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
2016-05-31 03:52:14 +02:00
; );
;------------------------------------------------------------------------------
global ASM_PFX(InternalSyncDecrement)
ASM_PFX(InternalSyncDecrement):
MdePkg/SynchronizationLib: fix Interlocked[De|In]crement return value REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1197 Today's InterlockedIncrement()/InterlockedDecrement() guarantees to perform atomic increment/decrement but doesn't guarantee the return value equals to the new value. The patch fixes the behavior to use "XADD" instruction to guarantee the return value equals to the new value. The patch calls intrinsic functions for MSVC tool chain, calls the NASM implementation for INTEL tool chain and calls GCC inline assembly implementation (GccInline.c) for GCC tool chain. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com>
2018-09-07 11:26:14 +02:00
mov eax, 0FFFFFFFFh
lock xadd dword [rcx], eax
dec eax
MdePkg BaseSynchronizationLib: Convert X64/InterlockedDecrement.asm to NASM The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert X64/InterlockedDecrement.asm to X64/InterlockedDecrement.nasm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
2016-05-31 03:52:14 +02:00
ret