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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>
2024-02-26MdePkg Updated the comments of EFI_SYSTEM_TABLE and ReadKeyStrokeJunfeng Guan1-0/+1
1. Refer to Uefi spec 2.10 section 4.3.1, Updated the comments of EFI_SYSTEM_TABLE to satisfy ConIn/ConOut/StdErr requirements. 2. Refer to Uefi spec 2.10 section 13.3.3, Add a new retval EFI_UNSUPPORTED to EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.ReadKeyStrokeEx and EFI_SIMPLE_TEXT_INPUT_PROTOCOL.ReadKeyStroke(). Signed-off-by: Junfeng Guan <junfengx.guan@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Cc: Zhiguang Liu <zhiguang.liu@intel.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-12-07MdePkg: Apply uncrustify changesMichael Kubacki1-64/+59
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>
2018-02-01MdePkg/SimpleTextInEx.h: Fix comments alignmentRuiyu Ni1-8/+5
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Liming Gao <liming.gao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-06-20MdePkg/SimpleTextInEx: Update comments according to UEFI 2.7 specDandan Bi1-8/+9
Cc: Liming Gao <liming.gao@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Dandan Bi <dandan.bi@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2012-07-30Change the type of NotifyHandle from EFI_HANDLE to VOID * for SimpleTextInEx ↵niruiyu1-3/+3
protocol. Clean up the code to remove unnecessary NotifyHandle in the private data structure. Signed-off-by: Ruiyu Ni<ruiyu.ni@intel.com> Reviewed-by: Elvin Li<elvin.li@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13565 6f19259b-4bc3-4df7-8a09-765794883524
2011-09-301. Add Partial Keystroke Support definition in SimpleTextInputEx.h See the ↵qianouyang1-31/+32
Uefi2.3.1a chapter 11.2 Signed-off-by: qianouyang Reviewed-by: niruiyu vanjeff git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12493 6f19259b-4bc3-4df7-8a09-765794883524
2011-05-16Add definition of SCAN_PAUSE for EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.vanjeff1-0/+1
Signed-off-by: vanjeff Reviewed-by: niruiyu git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11655 6f19259b-4bc3-4df7-8a09-765794883524
2011-05-041.Move the definitions of SCAN_F11 and SCAN_F12 from SimpleTextIn.h to ↵vanjeff1-2/+6
SimpleTextInEx.h because they are defined in Table - EFI Scan Codes for EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL. 2.Include SimpleTextIn.h in SimpleTextInEx.h because EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL is an extension of the EFI_SIMPLE_TEXT_INPUT_PROTOCOL. 3.Include SimpleTextInEx.h in UefiSpec.h. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11612 6f19259b-4bc3-4df7-8a09-765794883524
2010-04-23Update the copyright notice formathhtian1-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10403 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-11update codes per MdePkg doxgen review comments.vanjeff1-13/+14
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8526 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-04update comments per review comments.vanjeff1-4/+5
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8463 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-04Reviewed the code comments in the Include/Protocol directory for typos, ↵pkandel1-17/+16
grammar issues, and language clarity. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8462 6f19259b-4bc3-4df7-8a09-765794883524
2009-05-181. Clean up MdePkg internal header fileslgao41-4/+1
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
2008-12-09Add the detailed descriptions for the structure data member in these protocol.lgao41-30/+26
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6935 6f19259b-4bc3-4df7-8a09-765794883524
2008-10-13Formalize comments for Protocols and PPIs.xli241-6/+6
1. Use doxygen format for Protocol/PPI data structure 2. Remove doxygen comments for function elements in Protocol/Ppi 3. Use doxygen format for data elements in Protocol/Ppi, and add missing comments where necessary 4. PEI Services Table is also updated accordingly. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6107 6f19259b-4bc3-4df7-8a09-765794883524
2008-10-09Fix doxygen comment for structure and macroklu21-19/+3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6097 6f19259b-4bc3-4df7-8a09-765794883524
2008-07-25Code Scrub for Protocol and Ppi Definitionlgao41-35/+27
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5564 6f19259b-4bc3-4df7-8a09-765794883524
2008-06-24Fix doxygen issue:klu21-6/+6
1) comment for structure should be in doxygen format, such as /// , /**, /*! 2) comment for data field of structure should in doxygen format. 3) should not exist blank between ") (" when declaring a type of function point. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5364 6f19259b-4bc3-4df7-8a09-765794883524
2008-04-21Fix missing include file which break doxygen parsing.klu21-0/+3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5105 6f19259b-4bc3-4df7-8a09-765794883524
2007-10-19Update EFI_SIMPLE_TEXT_INPUT_EX protocol definitions according to UEFI spec 2.1bqhuang81-31/+61
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4175 6f19259b-4bc3-4df7-8a09-765794883524
2007-06-28Updated headers to follow coding standardAJFISH1-2/+0
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2815 6f19259b-4bc3-4df7-8a09-765794883524
2007-06-19Checked in the Protocols introduced in UEFI/PI.yshang11-0/+318
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2674 6f19259b-4bc3-4df7-8a09-765794883524
generated by cgit v1.2.3 (git 2.39.0) at 2026-09-28 09:53:36 +0300