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2026-02-24MdePkg: Replace include guards with #pragma onceMichael Kubacki1-4/+1
Replace traditional `#ifndef`/`#define`/`#endif` include guards with `#pragma` once. `#pragma once` is a widely supported preprocessor directive that prevents header files from being included multiple times. It is supported by all toolchains used to build edk2: GCC, Clang/LLVM, and MSVC. Compared to macro-based include guards, `#pragma once`: - Eliminates the risk of macro name collisions or copy/paste errors where two headers inadvertently use the same guard macro. - Eliminate inconsistency in the way include guard macros are named (e.g., some files use `__FILE_H__`, others use `FILE_H_`, etc.). - Reduces boilerplate (three lines replaced by one). - Avoids polluting the macro namespace with guard symbols. - Can improve build times as the preprocessor can skip re-opening the file entirely, rather than re-reading it to find the matching `#endif` ("multiple-include optimization"). - Note that some compilers may already optimize traditional include guards, by recognzining the idiomatic pattern. This change is made acknowledging that overall portability of the code will technically be reduced, as `#pragma once` is not part of the C/C++ standards. However, this is considered acceptable given: 1. edk2 already defines a subset of supported compilers in BaseTools/Conf/tools_def.template, all of which have supported `#pragma once` for over two decades. 2. There have been concerns raised to the project about inconsistent include guard naming and potential macro collisions. Approximate compiler support dates: - MSVC: Supported since Visual C++ 4.2 (1996) - GCC: Supported since 3.4 (2004) (http://gnu.ist.utl.pt/software/gcc/gcc-3.4/changes.html) - Clang (LLVM based): Since initial release in 2007 Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
2026-01-26MdePkg: Fix property typos in MdePkgQihang Gao1-13/+13
The word property is misspelled as propery, so fix it. Signed-off-by: Qihang Gao <gaoqihang@loongson.cn>
2021-12-07MdePkg: Apply uncrustify changesMichael Kubacki1-19/+7
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdePkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2019-04-09MdePkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney1-7/+1
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>
2018-06-28MdePkg: Clean up source filesLiming Gao1-120/+120
1. Do not use tab characters 2. No trailing white space in one line 3. All files must end with CRLF Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com>
2010-04-23Update the copyright notice formathhtian1-1/+1
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10403 6f19259b-4bc3-4df7-8a09-765794883524
2010-03-13Grammatical and disclaimer changes (does not follow internal C coding stds.)myronporter1-46/+46
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10235 6f19259b-4bc3-4df7-8a09-765794883524
2009-08-19Minor update to fix some typos.qhuang81-1/+1
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9135 6f19259b-4bc3-4df7-8a09-765794883524
2009-05-31This checkin addresses the compatibility issue of passing arguments of type ↵mdkinney1-1/+1
VA_LIST between components. The type VA_LIST is mapped onto the compiler specific implementation of varargs. As a result, modules build with different compilers may not use the same VA_LIST structure. The solution to this issue is to define a new type called BASE_LIST that is a compiler independent method of passing varargs between modules. Add BASE_LIST type to Base.h Add BAS_ARG() macro to Base.h Add 4 functions to PrintLib.h that use BASE_LIST. Change ReportStatsuCodeExtractDebugInfo() from ReportStatusCodeLib.h to take a BASE_LIST argument instead of a VA_LIST argument Add the 4 new functions to BasePrintLib implementation that use BASE_LIST Update BaseReportStatusCodeLib implementation of ReportStatsuCodeExtractDebugInfo() to use a BASE_LIST argument instead of a VA_LIST argument git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8404 6f19259b-4bc3-4df7-8a09-765794883524
2009-05-181. Clean up MdePkg internal header fileslgao41-2/+2
The header files in MdePkg/Include/Ia32, X64, Ipf, Ebc, Pi, Uefi directories are the internal header files, which should not be directly included by the modules. This patch cleans these internal header files to remove the uncessary ProcessorBind.h file. 2. Clean up MdePkg public header files to remove the uncessary internal header files. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8324 6f19259b-4bc3-4df7-8a09-765794883524
2009-03-03Add #include <Uefi/UefiBaseType.h> for the reference of "EFI_GUID" in the ↵qhuang81-5/+2
library class git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7779 6f19259b-4bc3-4df7-8a09-765794883524
2009-02-18Revert some code that was checked in by mistakeqhuang81-22/+0
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7539 6f19259b-4bc3-4df7-8a09-765794883524
2009-02-09Clean IpfMacro.i to remove unused Macro.lgao41-8/+27
Sync ReportDebugCodeLib function description to new MdeLib spec. Update PlatformDriverOverride protocol function description according to UEFI spec. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7478 6f19259b-4bc3-4df7-8a09-765794883524
2008-11-21Function headers and comments have been checked with spec.jji41-1/+13
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6651 6f19259b-4bc3-4df7-8a09-765794883524
2008-11-14Synchronization of MDE Library Spec., Mde.dec, and corresponding head files ↵jji41-8/+8
in MdePkg\Include\Library. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6544 6f19259b-4bc3-4df7-8a09-765794883524
2008-11-12Remove unnecessary header file including for library class in MdePkg.klu21-1/+0
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6467 6f19259b-4bc3-4df7-8a09-765794883524
2008-04-22Fix typo in comment.klu21-0/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5108 6f19259b-4bc3-4df7-8a09-765794883524
2007-08-14gEfiCallerIdGuid is defined in Autogen.hqwang121-5/+0
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3638 6f19259b-4bc3-4df7-8a09-765794883524
2007-06-22Checked in part of MDE library instances following PI and UEFI. It includes:yshang11-144/+2
1) UefiLib adds features of RFC 3066/Iso639 language string and driver model protocols installation. 2) PeiCoreEntryPoint following PI. 3) UefiDriverEntryPoint following UEFI/EFI. 4) PeiServicesTablePointerLib following PI for IPF and x86. 5) Remove many CommonHeader.h. If there is only one C file in module, we should add the common headers in C file instead of creating a new CommonHeader.h. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2723 6f19259b-4bc3-4df7-8a09-765794883524
2007-06-19Import Library Class from original MDE package. Also I added the ↵yshang11-0/+632
EFI_PEI_CORE_ENTRY_POINT definition in PiPeiCis.h. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2677 6f19259b-4bc3-4df7-8a09-765794883524
2007-06-01Moved the MdePkg to OldMdePkg so that new code in MdePkg does not break ↵lhauch1-632/+0
existing builds. Also updated the SPD and FPD files UiNames git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2616 6f19259b-4bc3-4df7-8a09-765794883524
2006-06-13 BaseMemoryLib (BaseMemoryLibRepStr):qhuang81-17/+17
Fix a logic error in SetMem64 (); The correct stride should be 8 instead of 4. BasePrintLib: Fix Printf(“%\n”) passer error. Fix BufferSize = 0, 1 issue Fix some missing ASSERT ()s Move MAXIMUM_VALUE_CHARACTERS from PrintLibInternal.h to PrintLib.h ReportStatusCodeLib: Add CONST modifier to some interfaces Modify DebugLib: Replace some Unicode in comments. PeiServicesTablePointerLib Add ASSERT()s PciLib: Remove unnecessary ASSERT()s in PciRead/WriteBuffer() git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@496 6f19259b-4bc3-4df7-8a09-765794883524
2006-06-08 1. Rename PeiCoreLib to PeiServicesLib and rename all the interfaces from ↵qhuang81-131/+0
PeiCoreXXX() to PeiServicesXXX(). 2. Remove PostCode interfaces from ReportStatusCodeLib git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@441 6f19259b-4bc3-4df7-8a09-765794883524
2006-04-22Initial import.bbahnsen1-0/+763
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524