Acidanthera UEFI Development Kit based on EDK II edk2-stable202311
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Ard Biesheuvel 765fb87c2b MdeModulePkg/FileExplorerLib: avoid packed struct for program data
Struct packing is only necessary for data structures whose in-memory
representation is covered by the PI or UEFI specs, and may deviate
from the ordinary C rules for alignment.

So in case of FileExplorerLib, this applies to the device path struct
only, and other structures used to carry program data should not be
packed, or we may end up with alignment faults on architectures such
as ARM, which don't permit load/store double or multiple instructions
to access memory locations that are not 32-bit aligned.

E.g., the following call in FileExplorerLibConstructor()

  InitializeListHead (&gFileExplorerPrivate.FsOptionMenu->Head);

which is emitted as follows for 32-bit ARM/Thumb2 by Clang-5.0

    3de0:       b510            push    {r4, lr}
    3de2:       4604            mov     r4, r0
    ...
    3de8:       e9c4 4400       strd    r4, r4, [r4]
    3dec:       bd10            pop     {r4, pc}

will perform a double-word store on the first argument, passed in
register r0, assuming that the pointer type of the argument is
enough to guarantee that the value is suitably aligned.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
2018-12-11 13:14:28 +01:00
AppPkg AppPkg: Removing ipf which is no longer supported from edk2. 2018-06-29 16:19:35 +08:00
ArmPkg ArmPkg/OpteeLib: Add OPTEE_SUCCESS return code 2018-12-11 09:04:10 +01:00
ArmPlatformPkg ArmPlatformPkg/PlatformPei: drop unused PCD references 2018-11-29 18:57:39 +01:00
ArmVirtPkg ArmVirtPkg/QemuVirtMemInfoLib: trim the MMIO region mapping 2018-12-03 15:56:39 +01:00
BaseTools BaseTools: Correct CCFLAG for PcdValueInit 2018-12-07 10:39:52 +08:00
BeagleBoardPkg BeagleBoardPkg/PrePi: base GCD memory space size on CPU's PA range 2018-11-29 18:57:31 +01:00
Conf EDK II: Add .gitignore 2014-10-14 16:08:15 +00:00
CorebootModulePkg CorebootModulePkg: Removing ipf from edk2. 2018-08-14 08:58:28 +08:00
CorebootPayloadPkg CorebootPayloadPkg: Remove EdkShellBinPkg in FDF 2018-11-05 13:58:24 +08:00
CryptoPkg CryptoPkg/IntrinsicLib: add missing BaseLib declaration 2018-12-10 11:02:47 +08:00
EdkCompatibilityPkg EdkCompatibilityPkg: Removing ipf from edk2. 2018-09-25 23:43:46 +08:00
EmbeddedPkg EmbeddedPkg/EmbeddedPkg.dec: drop PcdPrePiCpuMemorySize declarations 2018-11-30 22:43:20 +01:00
EmulatorPkg EmulatorPkg: Remove EdkShellBinPkg in FDF and DEC 2018-11-19 10:50:15 +08:00
FatPkg FatPkg: Correct the line ending to CRLF 2018-10-24 15:22:31 +08:00
FmpDevicePkg FmpDevicePkg DSC: Add NOOPT target to verify NOOPT target 2018-10-31 22:08:10 +08:00
IntelFrameworkModulePkg IntelFrameworkModulePkg: Fix UEFI and Tiano Decompression logic issue 2018-11-11 11:48:37 +08:00
IntelFrameworkPkg IntelFrameworkPkg FrameworkUefiLib: Add new EfiLocateXXXAcpiTable APIs 2018-09-27 14:25:32 +08:00
IntelFsp2Pkg IntelFsp2Pkg: Fixed potentially NULL pointer accessing 2018-10-29 11:24:58 +08:00
IntelFsp2WrapperPkg IntelFsp2WrapperPkg: Fix constant if statements issue 2018-11-26 11:40:38 +08:00
IntelFspPkg edk2: Move License.txt file to root 2017-08-03 11:02:17 -07:00
IntelFspWrapperPkg edk2: Move License.txt file to root 2017-08-03 11:02:17 -07:00
IntelSiliconPkg IntelSiliconPkg VTdDxe: Report status code for VTd error 2018-10-25 11:50:49 +08:00
MdeModulePkg MdeModulePkg/FileExplorerLib: avoid packed struct for program data 2018-12-11 13:14:28 +01:00
MdePkg Revert "MdePkg/ProcessorBind.h AARCH64: limit MAX_ADDRESS to 48 bits" 2018-12-07 12:24:19 +01:00
NetworkPkg NetworkPkg/IScsiDxe: add debug logs for failed SetVariable attempts 2018-11-23 14:27:11 +08:00
Nt32Pkg Nt32Pkg: Remove EdkShellBinPkg in FDF and DEC 2018-11-19 10:50:15 +08:00
Omap35xxPkg Omap35xxPkg: Removing ipf which is no longer supported from edk2. 2018-06-29 16:19:46 +08:00
OptionRomPkg OptionRomPkg: Removing ipf which is no longer supported from edk2. 2018-09-06 14:44:30 +08:00
OvmfPkg OvmfPkg: Don't include TftpDynamicCommand in XCODE5 tool chain 2018-11-27 11:21:15 +08:00
PcAtChipsetPkg PcAtChipsetPkg PcRtc: Use new EfiLocateFirstAcpiTable() 2018-09-27 14:25:35 +08:00
QuarkPlatformPkg QuarkPlatformPkg: Removing ipf which is no longer supported from edk2. 2018-08-14 08:58:30 +08:00
QuarkSocPkg QuarkSocPkg: Removing ipf which is no longer supported from edk2. 2018-08-14 08:58:32 +08:00
SecurityPkg SecurityPkg: Remove dead code and inf redundant definitions. 2018-12-10 15:56:32 +08:00
ShellBinPkg ShellBinPkg: Clean up source files 2018-06-28 11:19:51 +08:00
ShellPkg ShellPkg: Remove ShellPkg wrapper header files 2018-11-22 14:24:23 +08:00
SignedCapsulePkg SignedCapsulePkg: Remove PalLib in dsc which was missed at 52664c5 2018-09-25 23:40:40 +08:00
SourceLevelDebugPkg SourceLevelDebugPkg/Readme.txt: Update UDK Debugger Tool & manual URL 2018-11-08 12:00:34 +08:00
StandaloneMmPkg StandaloneMM: Update permissions for Standalone MM drivers memory area 2018-12-09 16:01:53 +00:00
StdLib StdLib: Removing ipf which is no longer supported from edk2. 2018-06-29 16:19:51 +08:00
StdLibPrivateInternalFiles StdLibPrivateInternalFiles: Removing ipf from edk2. 2018-06-29 16:19:51 +08:00
UefiCpuPkg UefiCpuPkg/Cpuid: Add code to support new definition. 2018-12-10 15:33:50 +08:00
Vlv2DeviceRefCodePkg edk2: Move License.txt file to root 2017-08-03 11:02:17 -07:00
Vlv2TbltDevicePkg Vlv2TbltDevicePkg:Fix build and boot failure of Minnowboard Max platform. 2018-11-23 13:58:28 +08:00
.gitignore edk2: Add .DS_Store to .gitignore for macOS 2017-05-19 15:14:34 -07:00
.gitmodules CryptoPkg: Adding OpenSSL as one submodule of EDKII repo 2018-01-18 14:06:15 +08:00
BuildNotes2.txt BaseTools: Updated BuildNotes URLs 2016-03-25 09:46:44 +08:00
Contributions.txt edk2: Fix typo in Contributions.txt 2017-08-16 17:50:44 +08:00
License.txt edk2: Move License.txt file to root 2017-08-03 11:02:17 -07:00
Maintainers.txt Maintainers.txt: Remove DuetPkg 2018-12-06 14:34:29 +08:00
Readme.md edk2: Add Readme.md to root of edk2 repository 2017-08-03 11:02:25 -07:00
edksetup.bat BaseTools: Fix incorrect %EDK_TOOLS_PATH% 2018-08-08 08:44:22 +08:00
edksetup.sh Revert BaseTools: PYTHON3 migration 2018-10-15 08:29:14 +08:00

Readme.md

EDK II Project

A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org.

Contributions to the EDK II open source project are covered by the TianoCore Contribution Agreement 1.1

The majority of the content in the EDK II open source project uses a BSD 2-Clause License. The EDK II open source project contains the following components that are covered by additional licenses:

The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.

Resources