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2026-02-24ShellPkg: 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>
2023-12-08ShellPkg: Fix typosPage Chen1-1/+1
begining->beginning dirve->drive duplicat->duplicate fuly->fully Funciton->Function Functino->Function optioanl->optional poitners->pointers rountine->routine sucessful->successful sucessfully->successfully Signed-off-by: Page Chen <paiching_chen@apple.com> Cc: Zhichao Gao <zhichao.gao@intel.com> Cc: Andrew Fish <afish@apple.com> Message-Id: <829d2bed2a848229d719d7ae7b64ef1a47782720.1699557986.git.paiching_chen@apple.com> Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
2021-12-07ShellPkg: Apply uncrustify changesMichael Kubacki1-1/+0
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the ShellPkg 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: Ray Ni <ray.ni@intel.com>
2019-04-09ShellPkg: 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: Ray Ni <ray.ni@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
2018-02-08ShellPkg/UefiShellDebug1CommandsLib: sync Compress() definition with decl.Laszlo Ersek1-1/+0
"Compress.h" declares the Compress() function as EFIAPI, but the definition in "Compress.c" lacks EFIAPI. GCC toolchains without LTO do not catch this error because "Compress.c" does not include "Compress.h"; i.e. the declaration used by callers such as "EfiCompress.c" is not actually matched against the function definition at build time. With LTO enabled, the mismatch is found -- however, as a warning only, due to commit f8d0b9662993 ("BaseTools GCC5: disable warnings-as-errors for now", 2016-08-03). Include the header in the C file (which turns the issue into a hard build error on all GCC toolchains), plus sync the declaration from the header file to the C file. Finally, remove EFIAPI from both declaration and definition -- this was the original intent of commit c4e74e9b814c ("ShellPkg/UefiShellDebug1CommandsLib: Remove unnecessary EFIAPI", 2016-10-09), but it missed the header file. (Gary meant to address that omission in Oct 2017: [edk2] [PATCH] ShellPkg/UefiShellDebug1CommandsLib: Remove EFIAPI from Compress() http://mid.mail-archive.com/20171026065329.32311-1-glin@suse.com and Ray reviewed the patch, but then the patch was never committed.) So do the sync and drop EFIAPI now. This happens to fix the EFICOMPRESS shell command, when built with GCC for X64. Cc: Gary Lin <glin@suse.com> Cc: Jaben Carsey <jaben.carsey@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Fixes: c4e74e9b814cfb4b51cf832f3bb218cd2aba348b Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Gary Lin <glin@suse.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
2011-09-02Refine comments and two code style.ydong101-5/+5
Signed-off-by: ydong10 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12263 6f19259b-4bc3-4df7-8a09-765794883524
2011-03-26comp - add comments and add input verification jcarsey1-2/+2
bcfg - updated for bugs. compress - rename for coding standards. add comments. dblk - add comments, input verification, and a header line dmem - add comments, add input verification, add system table info dmpstore - add comments eficompress - add comments and add input verification efidecompress - add comments and add input verification loadpcirom - add comments and more output messages memmap - add more output to exceed the spec. mm - move functions, add comments, add input verification. mode - add comment pci - add input verification. SerMode - add comments and add input verification setsize - add comments and add input verification setvar - add comments and add input verification smbiosview - add input verification. clarify error messages. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11438 6f19259b-4bc3-4df7-8a09-765794883524
2010-11-17Add "Debug1" profile (all but Edit and HexEdit commands)jcarsey1-0/+40
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11068 6f19259b-4bc3-4df7-8a09-765794883524