mirror of https://github.com/acidanthera/audk.git
UefiCpuPkg/CpuPageTableLib: Add intrinsic lib to fix MSVC build
For the bitfield access, MSVC apparently uses a right shift of the base type of the bitfield member. In our case, is is cased by IA32_PTE_4K and IA32_PAGE_LEAF_ENTRY_BIG_PAGESIZE and other structures which uses uint64 bitfields and 32-bit x86 doesn't have a 64-bit integer shift (except using MMX or SSE2). With -Od (NOOPT) even for constant counts it puts the data in EDX:EAX, the shift count in cl and calls __aullshr. Signed-off-by: Savva Mitrofanov <savvamtr@gmail.com>
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/** @file
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64-bit Math Worker Function.
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The 32-bit versions of C compiler generate calls to library routines
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to handle 64-bit math. These functions use non-standard calling conventions.
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Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Library/BaseLib.h>
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/*
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* Divides a 64-bit unsigned value by another 64-bit unsigned value and returns
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* the 64-bit unsigned remainder.
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*/
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__declspec(naked) void __cdecl
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_aullrem(void)
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{
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//
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// Wrapper Implementation over EDKII DivU64x64Remainder() routine
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// UINT64
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// EFIAPI
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// DivU64x64Remainder (
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// IN UINT64 Dividend,
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// IN UINT64 Divisor,
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// OUT UINT64 *Remainder OPTIONAL
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// )
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//
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_asm {
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; Original local stack when calling _aullrem
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; -----------------
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; | |
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; |---------------|
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; | |
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; |-- Divisor --|
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; | |
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; |---------------|
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; | |
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; |-- Dividend --|
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; | |
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; |---------------|
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; | ReturnAddr** |
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; ESP---->|---------------|
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;
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;
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; Set up the local stack for Reminder pointer
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;
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sub esp, 8
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push esp
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;
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; Set up the local stack for Divisor parameter
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;
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mov eax, [esp + 28]
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push eax
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mov eax, [esp + 28]
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push eax
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;
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; Set up the local stack for Dividend parameter
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;
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mov eax, [esp + 28]
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push eax
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mov eax, [esp + 28]
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push eax
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;
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; Call native DivU64x64Remainder of BaseLib
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;
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call DivU64x64Remainder
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;
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; Put the Reminder in EDX:EAX as return value
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;
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mov eax, [esp + 20]
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mov edx, [esp + 24]
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;
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; Adjust stack
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;
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add esp, 28
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ret 16
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}
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}
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@ -27,6 +27,7 @@
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[Sources.IA32]
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CopyMem.c
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Ia32/MathDivU64xU64Rem.c | MSFT
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Ia32/MathLShiftS64.c | MSFT
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Ia32/MathRShiftU64.c | MSFT
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Ia32/MathFtol.c | MSFT
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@ -37,6 +38,7 @@
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Ia32/MathLldiv.asm | MSFT
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Ia32/MathUllrem.asm | MSFT
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Ia32/MathDivU64xU64Rem.c | INTEL
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Ia32/MathLShiftS64.c | INTEL
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Ia32/MathRShiftU64.c | INTEL
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Ia32/MathFtol.c | INTEL
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@ -33,3 +33,4 @@
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BaseLib
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BaseMemoryLib
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DebugLib
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IntrinsicLib
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@ -69,6 +69,7 @@
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UnitTestLib|UnitTestFrameworkPkg/Library/UnitTestLib/UnitTestLib.inf
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UnitTestPersistenceLib|UnitTestFrameworkPkg/Library/UnitTestPersistenceLibNull/UnitTestPersistenceLibNull.inf
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UnitTestResultReportLib|UnitTestFrameworkPkg/Library/UnitTestResultReportLib/UnitTestResultReportLibDebugLib.inf
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IntrinsicLib|CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf
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[LibraryClasses.common.SEC]
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PlatformSecLib|UefiCpuPkg/Library/PlatformSecLibNull/PlatformSecLibNull.inf
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@ -129,6 +130,9 @@
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UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.inf
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UefiCpuPkg/MicrocodeMeasurementDxe/MicrocodeMeasurementDxe.inf
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[Components.IA32]
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CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf
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[Components.IA32, Components.X64]
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UefiCpuPkg/CpuDxe/CpuDxe.inf
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UefiCpuPkg/CpuFeatures/CpuFeaturesPei.inf {
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