Tianocore/edk2.git/MdePkg/Library/BaseLib, branch master

MdePkg/BaseLib: Add AsciiStrToUintn and AsciiStrToUint64

2026-09-15T10:49:49+00:00

Add AsciiStrToUintn() and AsciiStrToUint64() to BaseLib. These are thin wrappers that dispatch to the existing AsciiStrHexToUintnS()/ AsciiStrDecimalToUintnS() (and UINT64 equivalents) based on Base, which must be 0 (auto-detect via a "0x"/"0X" prefix), 10, or 16. No new radix-parsing logic is introduced; the existing conversion routines already cover the bases actually used in practice. Signed-off-by: Vishal Oliyil Kunnil

MdePkg/BaseLib: Add AsciiIsSpace

2026-09-15T10:49:49+00:00

Add AsciiIsSpace() to BaseLib, which checks whether an ASCII character is a space character as defined by the ISO C isspace() function. This will be used to implement AsciiStrToUintn() and AsciiStrToUint64(). Signed-off-by: Vishal Oliyil Kunnil

MdePkg/BaseLib: Add AsciiStrRChr

2026-09-15T10:49:49+00:00

Add AsciiStrRChr() to BaseLib, which returns the last occurrence of a character in a Null-terminated ASCII string. This mirrors the existing AsciiStrStr() API style and provides a reusable implementation for consumers that currently hand-roll this logic. Signed-off-by: Vishal Oliyil Kunnil

MdePkg: UnitTestHostBaseLib: Support reading CNTPCT_EL0, ID_AA64ISAR0_EL1

2026-09-06T10:12:38+00:00

This change adds the support of reading CNTPCT_EL0 and ID_AA64ISAR0_EL1 through current BaseLib definition. This paves way to allow the linkage of these functions needed on other host based unit tests. Signed-off-by: Kun Qin

MdePkg: UnitTestHostBaseLib: Clean up source entries

2026-07-31T15:16:47+00:00

The existing UnitTestHostBaseLib has some source entries that are either redundant or for unsupported architectures. This change consolidated the redundant entries and removed the entries for unsupported architectures. Signed-off-by: Kun Qin

MdePkg: UnitTestHostBaseLib: Added preprocessor for AArch64 instances

2026-07-31T15:16:47+00:00

This change adds a few preprocessors to build AArch64 host based unit tests properly. An AArch64 specific instance of `gUnitTestHostBaseLib` is created to abstract the reference of arch specific special instructions. Signed-off-by: Kun Qin

MdePkg: Replace manual alignment checks with helper macros

2026-06-09T07:20:10+00:00

Replace manual alignment checks with IS_ALIGNED() and ADDRESS_IS_ALIGNED(). Convert the following bitmask and modulo forms: - ((E & ((PowOf2Expr) - ONE)) == ZERO) - ((E & ((PowOf2Expr) - ONE)) != ZERO) - ((E % (PowOf2Expr)) == ZERO) - ((E % (PowOf2Expr)) != ZERO) to the corresponding helper macro forms: + IS_ALIGNED (E, PowOf2Expr) + !IS_ALIGNED (E, PowOf2Expr) PowOf2Expr is limited to known power-of-two expressions, including SIZE_* and BASE_* macros, EFI_PAGE_SIZE, CPU_STACK_ALIGNMENT, RUNTIME_PAGE_ALLOCATION_GRANULARITY, sizeof() of UEFI integer types (e.g. BOOLEAN, CHAR16, UINT32, UINTN) and pointer types, and 1 << E1 expressions. Address checks that cast the checked value to UINTN are written with ADDRESS_IS_ALIGNED(). The change was generated with the Coccinelle semantic patch below. ```smpl @power_of_2_expr@ expression PowOf2Expr; expression E1; typedef BOOLEAN, CHAR8, CHAR16, INT8, UINT8, INT16, UINT16, INT32, UINT32, INT64, UINT64, INTN, UINTN; type ScalarType = { BOOLEAN, CHAR8, CHAR16, INT8, UINT8, INT16, UINT16, INT32, UINT32, INT64, UINT64, INTN, UINTN }; type AnyType; type PointerType = AnyType *; idexpression ScalarType ScalarValue; idexpression PointerType PointerValue; constant SizeBase =~ "^(SIZE|BASE)_(1|2|4|8|16|32|64|128|256|512)[KMGTPE]B$"; constant NamedPowerOf2 =~ "^(EFI_PAGE_SIZE|CPU_STACK_ALIGNMENT|RUNTIME_PAGE_ALLOCATION_GRANULARITY)$"; constant ONE = {1, 1U, 1u}; @@ ( ( SizeBase | NamedPowerOf2 | ONE << E1 | sizeof (ScalarType) | sizeof (PointerType) | sizeof (ScalarValue) | sizeof (PointerValue) ) & PowOf2Expr ) @aligned depends on power_of_2_expr disable is_zero,isnt_zero@ expression E; expression power_of_2_expr.PowOf2Expr; constant ONE = {1, 1U, 1u}; constant ZERO = {0, 0U, 0u}; @@ ( ((E & (E - ONE)) == ZERO) | - ((E & ((PowOf2Expr) - ONE)) == ZERO) + IS_ALIGNED (E, PowOf2Expr) | ((E & (E - ONE)) != ZERO) | - ((E & ((PowOf2Expr) - ONE)) != ZERO) + !IS_ALIGNED (E, PowOf2Expr) | - ((E % (PowOf2Expr)) == ZERO) + IS_ALIGNED (E, PowOf2Expr) | - ((E % (PowOf2Expr)) != ZERO) + !IS_ALIGNED (E, PowOf2Expr) ) @address_is_aligned@ typedef UINTN; expression *Address; expression Alignment; @@ - IS_ALIGNED ((UINTN) Address, Alignment) + ADDRESS_IS_ALIGNED (Address, Alignment) @normalize_aligned disable paren expression@ expression E, SZ; @@ ( - (IS_ALIGNED (E, SZ)) + IS_ALIGNED (E, SZ) | - (!IS_ALIGNED (E, SZ)) + !IS_ALIGNED (E, SZ) ) @normalize_macro_args disable paren expression@ expression E, SZ; @@ ( - IS_ALIGNED ((E), SZ) + IS_ALIGNED (E, SZ) | - IS_ALIGNED (E, (SZ)) + IS_ALIGNED (E, SZ) ) ``` Signed-off-by: Mingjie Shen

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/BaseLib: Add AsmReadFsBase and AsmWriteFsBase for X86-64

2026-03-12T06:51:54+00:00

Signed-off-by: Ray Ni

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