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2026-02-24MdeModulePkg: 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>
2021-12-07MdeModulePkg: Apply uncrustify changesMichael Kubacki1-25/+24
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdeModulePkg 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>
2019-04-09MdeModulePkg: 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: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2018-06-28MdeModulePkg: Clean up source filesLiming Gao1-23/+23
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 <liming.gao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-03-13MdeModulePkg/Print2: Refine the comment for ASCII_VALUE_TO_STRING_SHao Wu1-2/+1
The commit refines the comment description for EFI_PRINT2S_PROTOCOL service ASCII_VALUE_TO_STRING_S. This service will not ASSERT when the input/output parameter 'Buffer' is not aligned on a 16-bit boundary. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-02-21MdeModulePkg: Add the EFI_PRINT2S_PROTOCOLHao Wu1-2/+148
Add the EFI_PRINT2S_PROTOCOL as a safe version of the EFI_PRINT2_PROTOCOL, the EFI_PRINT2S_PROTOCOL replaces the following 2 services in EFI_PRINT2_PROTOCOL: UNICODE_VALUE_TO_STRING ASCII_VALUE_TO_STRING with: UNICODE_VALUE_TO_STRING_S ASCII_VALUE_TO_STRING_S The 2 new services perform checks to the input parameters and will return relative status to reflect the check result. Return RETURN_INVALID_PARAMETER when: 1). The input Buffer is NULL. 2). The input BufferSize is greater than (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1) for UnicodeValueToStringS or greater than PcdMaximumAsciiStringLength for AsciiValueToStringS. 3). The input Flags is not set properly. 4). The input Width is not smaller than MAXIMUM_VALUE_CHARACTERS. Return RETURN_BUFFER_TOO_SMALL when: 1). The input BufferSize cannot hold the converted value. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-02-21MdeModulePkg: Refine the services comments in EFI_PRINT2_PROTOCOLHao Wu1-156/+205
For the following 8 services in EFI_PRINT2_PROTOCOL: UNICODE_BS_PRINT UNICODE_S_PRINT UNICODE_BS_PRINT_ASCII_FORMAT UNICODE_S_PRINT_ASCII_FORMAT ASCII_BS_PRINT ASCII_S_PRINT ASCII_BS_PRINT_UNICODE_FORMAT ASCII_S_PRINT_UNICODE_FORMAT They will ASSERT when: 1) The input parameter 'StartOfBuffer' is NULL if 'BufferSize' indicates at least 1 Ascii/Unicode character can be held. 2) The input parameter 'FormatString' is NULL if 'BufferSize' indicates at least 1 Ascii/Unicode character can be held. 3) The input parameter 'FormatString' contains more than PcdMaximum[Ascii|Unicode]StringLength Ascii/Unicode characters. 4) The produced string contains more than PcdMaximum[Ascii|Unicode]StringLength Ascii/Unicode characters. This commits removes the ASSERT case 4) and add the following new ASSERT case: 4) The input parameter 'BufferSize' is greater than (PcdMaximumAsciiStringLength * sizeof (CHAR8)) for Ascii format string or (PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1) for Unicode format string. And for those ASSERT cases, 0 will be returned by those services. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2010-04-24Update the copyright notice formathhtian1-1/+1
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10420 6f19259b-4bc3-4df7-8a09-765794883524
2010-03-17Grammatical and disclaimer changes (does not follow internal C coding stds.)myronporter1-8/+8
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10269 6f19259b-4bc3-4df7-8a09-765794883524
2010-03-05Minor update to some protocol interface function prototype for Doxygen documentrsun31-11/+11
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10207 6f19259b-4bc3-4df7-8a09-765794883524
2009-11-17Update function description to be consistent with code definition: HEX_RADIX ↵xdu21-7/+7
=> RADIX_HEX. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9434 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-12Update some comments for MdeModulePkg Include header files.lgao41-59/+47
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8536 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-11Committing changes to the comments, to improve code documentation. pkandel1-20/+20
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8533 6f19259b-4bc3-4df7-8a09-765794883524
2009-05-31This checkin addresses the compatibility issue of passing arguments of type ↵mdkinney1-27/+27
VA_LIST between components. The type VA_LIST is mapped onto the compiler specific implementation of varargs. As a result, modules build with different compilers may not use the same VA_LIST structure. The solution to this issue is to define a new type called BASE_LIST that is a compiler independent method of passing varargs between modules. 1) Update the Print2 Protocol to only use arguments of type BASE_LIST. Since this is a change to the protocol definition, the GUID has also been updated. 2) Update the implementation of DxePrintLibPrint2Protocol for the update definition of the Print2 Protocol. Since the PrintLib does contain APIs that use VA_LIST, this library must convert arguments of type VA_LIST to arguments of type BASE_LIST prior to calling the Print2 Protocol services. 3) Update the implementation of PrintDxe to match the updated Print2 Prootocol git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8405 6f19259b-4bc3-4df7-8a09-765794883524
2009-02-23Retire Print protocol in MdeModulePkg and update Print2 protocol to provide ↵qhuang81-17/+192
full set of API in PrintLib classes git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7564 6f19259b-4bc3-4df7-8a09-765794883524
2008-12-03Code scrub for MdeModule Include header file (Protocol and DEC)lgao41-3/+3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6817 6f19259b-4bc3-4df7-8a09-765794883524
2008-09-02To improve backward compatibility, add gEfiPrint2ProtocolGuid and rename ↵qwang121-1/+1
gEfiPrintProtocolGuid to the previous GUID value used in EDK I. gEfiPrint2ProtocolGuid is a enhanced version of gEfiPrintProtocolGuid. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5772 6f19259b-4bc3-4df7-8a09-765794883524
2008-09-02To improve backward compatibility, add gEfiPrint2ProtocolGuid and rename ↵qwang121-0/+306
gEfiPrintProtocolGuid to the previous GUID value used in EDK I. gEfiPrint2ProtocolGuid is a enhanced version of gEfiPrintProtocolGuid. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5766 6f19259b-4bc3-4df7-8a09-765794883524
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