Tianocore/edk2.git/MdePkg/Library/UefiLib, branch dependabot/github_actions/actions/setup-python-7

MdePkg: Fix Spelling Errors in Comments

2026-05-08T02:15:34+00:00

This fixes all non-breaking spelling errors in MdePkg. Signed-off-by: Oliver Smith-Denny

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/UefiLib: Use CompareMem() to compare ISO639 language codes

2025-12-09T08:41:08+00:00

ISO 639-3 language codes are 3 letter abbreviations that identify natural languages. Comparing them for equality involves performing a byte by byte check, without taking case into account. So use CompareMem() rather than the peculiar ReadUnaligned24 () API, given that we are not dealing with 24-bit integers here. Signed-off-by: Ard Biesheuvel

MdePkg: Remove UGA support

2025-07-08T15:42:03+00:00

The Universal Graphics Adapter (UGA) is a graphic abstraction. The UGA I/O and Draw protocols are deprecated since UEFI 2.0 was introduced. Cf. the UEFI spec v2.9: "Appendix L - EFI 1.10 Protocol Changes and Deprecation List" section L.2 "Deprecated Protocols" Remove the UGA support. Signed-off-by: GuoMinJ Signed-off-by: Pierre Gondois

MdePkg: CodeQL Fixes.

2024-11-01T04:30:39+00:00

Includes changes across the repo for the following CodeQL rules: - cpp/comparison-with-wider-type - cpp/overflow-buffer - cpp/redundant-null-check-param - cpp/uselesstest Co-authored-by: Taylor Beebe Co-authored-by: kenlautner <85201046+kenlautner@users.noreply.github.com> Signed-off-by: Aaron Pop

MdePkg: Added Call for AfterReadyToBoot Event

2023-02-15T12:34:20+00:00

In the function EfiSignalEventReadyToBoot, Code was added to also create, signal, and close the AfterReadyToBoot event. Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Signed-off-by: Robert Phelps 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: Change use of EFI_D_* to DEBUG_*

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

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3739 Update all use of EFI_D_* defines in DEBUG() macros to DEBUG_* defines. Cc: Andrew Fish Cc: Leif Lindholm Cc: Michael Kubacki Signed-off-by: Michael D Kinney Reviewed-by: Liming Gao

MdePkg/UefiLib: Correct the arguments passed to IsLanguageSupported()

2021-03-17T01:42:43+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3211 Correct the arguments passed to the IsLanguageSupported() function in AddUnicodeString2() and LookupUnicodeString2() as expected by the function Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Signed-off-by: Chandramohan Akula Reviewed-by: Liming Gao