Tianocore/edk2.git/DynamicTablesPkg/Library/FdtHwInfoParserLib/Arm/BootArch, branch master

DynamicTablesPkg: 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

ArmVirtPkg,DynamicTablesPkg,EmbeddedPkg,OvmfPkg: use MdePkg BaseFdtLib

2025-04-30T10:56:03+00:00

Migrate these packages to use the up-to-date BaseFdtLib instead of the EmbeddedPkg relic that is going away. Continuous-integration-options: PatchCheck.ignore-multi-package Signed-off-by: Leif Lindholm

DynamicTablesPkg/FdtHwInfoParserLib: add missing resolutions/includes

2024-09-27T07:40:06+00:00

FdtHwInfoParserLib does not explicitly call out its dependencies on BaseLib/BaseMemoryLib, which is currently hidden when EmbeddedPkg FdtLib pulls them in instead. But that is going away, so make the necessary explicit references and add missing include statements. Signed-off-by: Leif Lindholm

DynamicTablesPkg: FdtHwInfoParserLib: Move ARM parsers to Arm directory

2024-07-29T13:44:55+00:00

Create an Arm directory in the FdtHwInfoParserLib as a preparation step to support other architectures. Suggested-by: Sunil V L Signed-off-by: Pierre Gondois Reviewed-by: Sami Mujawar