Tianocore/edk2.git/MdePkg/Include/Protocol/PxeBaseCode.h, branch master

MdePkg: Replace include guards with #pragma once

2026-02-23T21:01:28+00:00

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

MdePkg: Remove ARM32 Support

2025-09-25T22:04:10+00:00

edk2 is dropping support for the ARM32 architecture. This commit removes the remaining ARM32 code from MdePkg. This also removes irrelevant VALID_ARCHITECTURES comments from infs that are not arch specific. Signed-off-by: Oliver Smith-Denny

MdePkg: Update Default IP TTL

2025-01-09T04:40:45+00:00

Default IP TTL (Time to Live) has been updated in UEFI 2.10 A Specification. To comply with IANA recommendations. REF: https://www.iana.org/assignments/ip-parameters/ip-parameters.xhtml#ip-parameters-2 Signed-off-by: Sachin Ganesh

MdePkg/Include: LoongArch definitions.

2022-10-14T02:16:33+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053 Add LoongArch processor related definitions. For the Http boot and PXE boot types seeing this URL section "Processor Architecture Type" for the LOONGARCH values: https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml For definitions of PE/COFF and LOONGARCH relocation types, see the "Machine Types" and "Basic Relocation Types" sections of this URL for LOONGARCH values: https://docs.microsoft.com/en-us/windows/win32/debug/pe-format For the register definitions of exceptions context, see the UEFI V2.10 18.2.2, 18.2.4 and 18.2.5 sections of this URL for LOONGARCH definitions: https://uefi.org/specs/UEFI/2.10/18_Protocols_Debugger_Support.html Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Signed-off-by: Chao Li Reviewed-by: Michael D Kinney Reviewed-by: Liming Gao

MdePkg: Apply uncrustify changes

2021-12-07T17:24:28+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdePkg package Cc: Andrew Fish Cc: Leif Lindholm Cc: Michael D Kinney Signed-off-by: Michael Kubacki Reviewed-by: Liming Gao

MdePkg: Change OPTIONAL keyword usage style

2021-12-07T17:24:28+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3760 Update all use of ', OPTIONAL' to ' OPTIONAL,' for function params. Cc: Andrew Fish Cc: Leif Lindholm Cc: Michael Kubacki Signed-off-by: Michael D Kinney Reviewed-by: Liming Gao

MdePkg/Include: RISC-V definitions.

2020-05-07T03:17:15+00:00

Add RISC-V processor related definitions. REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672 Signed-off-by: Abner Chang Co-authored-by: Gilbert Chen Reviewed-by: Leif Lindholm Reviewed-by: Zhiguang Liu Cc: Michael D Kinney Cc: Liming Gao Cc: Leif Lindholm Cc: Gilbert Chen

MdePkg: Replace BSD License with BSD+Patent License

2019-04-09T17:58:13+00:00

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 Reviewed-by: Liming Gao

MdePkg: Removing ipf which is no longer supported from edk2.

2018-09-25T15:48:21+00:00

Removing rules for Ipf sources file: * Remove the source file which path with "ipf" and also listed in [Sources.IPF] section of INF file. * Remove the source file which listed in [Components.IPF] section of DSC file and not listed in any other [Components] section. * Remove the embedded Ipf code for MDE_CPU_IPF. Removing rules for Inf file: * Remove IPF from VALID_ARCHITECTURES comments. * Remove DXE_SAL_DRIVER from LIBRARY_CLASS in [Defines] section. * Remove the INF which only listed in [Components.IPF] section in DSC. * Remove statements from [BuildOptions] that provide IPF specific flags. * Remove any IPF sepcific sections. Removing rules for Dec file: * Remove [Includes.IPF] section from Dec. Removing rules for Dsc file: * Remove IPF from SUPPORTED_ARCHITECTURES in [Defines] section of DSC. * Remove any IPF specific sections. * Remove statements from [BuildOptions] that provide IPF specific flags. Cc: Liming Gao Cc: Michael D Kinney Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chen A Chen Reviewed-by: Liming Gao

MdePkg: Clean up source files

2018-06-28T03:19:47+00:00

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