5f2c525cc2
- memtest86 does not re-read the text mode size after changing GOP resolution. - Possibly this is an issue in OC, in that this should not normally change? (But it is fundamental to Builtin renderer handling of console resolution that it will change, unless a fixed user mode size is specified.) - The only effect of this in memtest86 is that it attempts to place the white footer line of its text UI below the bottom of the screen; so this clamping, which seems reasonable anyway, completely works round it.
OpenCore bootloader with development SDK.
Libraries
This repository also contains additional UEFI support common libraries shared by other projects in Acidanthera. The primary purpose of the library set is to provide supplemental functionality for Apple-specific UEFI drivers. Key features:
- Apple disk image loading support
- Apple keyboard input aggregation
- Apple PE image signature verification
- Apple UEFI secure boot supplemental code
- Audio management with screen reading support
- Basic ACPI and SMBIOS manipulation
- CPU information gathering with timer support
- Cryptographic primitives (SHA-256, RSA, etc.)
- Decompression primitives (zlib, lzss, lzvn, etc.)
- Helper code for ACPI reads and modifications
- Higher level abstractions for files, strings, UEFI variables
- Overflow checking arithmetics
- PE image loading with no UEFI Secure Boot conflict
- Plist configuration format parsing
- PNG image manipulation
- Text output and graphics output implementations
- XNU kernel driver injection and patch engine
Early history of the codebase could be found in AppleSupportPkg and PicoLib library set by The HermitCrabs Lab.
OcGuardLib
This library implements basic safety features recommended for the use within the project. It implements fast safe integral arithmetics mapping on compiler builtins, type alignment checking, and UBSan runtime, based on NetBSD implementation.
The use of UBSan runtime requires the use of Clang compiler and -fsanitize=undefined argument. Refer to
Clang documentation for more
details.
Credits
- The HermitCrabs Lab
- All projects providing third-party code (refer to file headers)
- AppleLife team and user-contributed resources
- Chameleon and Clover teams for hints and legacy
- al3xtjames
- Andrey1970AppleLife
- mhaeuser (ex Download-Fritz)
- Goldfish64
- MikeBeaton
- nms42
- PMheart
- savvamitrofanov
- usr-sse2
- vit9696
Discussion
Please refer to the following list of OpenCore discussion forums.