XNU - Wikipedia
WEBXNU ("X is Not Unix") is the computer operating system (OS) kernel developed at Apple Inc. since December 1996 for use in the Mac OS X (now macOS) operating system and released as free and open-source software as part of the Darwin OS, which, in addition to being the basis for macOS, is also the basis for Apple TV Software, iOS, iPadOS, watchOS ...
Kernel - The iPhone Wiki
WEBNov 8, 2014 · The kernel of iOS is the XNU kernel. To learn about what "kernel" means in general, see the Wikipedia article. Pre-2.0, it was vulnerable to the Ramdisk Hack and may still be, but iBoot doesn't allow boot-args to be passed anymore. It is mapped to memory at 0x80000000, forcing a 2/2GB address separation, similar to Windows 32-bit model.
iOS - Wikipedia
WEBiOS does not have kernel extensions (kexts) in the file system, even if they are actually present. The kernel cache can be decompressed to show the correct kernel, along with the kexts (all packed in the __PRELINK_TEXT section) and their plists (in the __PRELINK_INFO section).
Kernel | Apple Developer Documentation
WEBOverview. The Kernel Framework provides the APIs and support for kernel-resident device drivers and other kernel extensions. It defines the base class for I/O Kit device drivers (IOService), several helper classes, and the …
GitHub - apple-oss-distributions/xnu
WEBXNU kernel is part of the Darwin operating system for use in macOS and iOS operating systems. XNU is an acronym for X is Not Unix. XNU is a hybrid kernel combining the Mach kernel developed at Carnegie Mellon University with components from FreeBSD and a C++ API for writing drivers called IOKit.
Boot process for iPhone and iPad devices - Apple Support
WEBFeb 18, 2021 · Boot process for iPhone and iPad devices. Each step of the startup process contains components that are cryptographically signed by Apple to enable integrity checking so that boot proceeds only after verifying the chain of trust. These components include the bootloaders, the kernel, kernel extensions, and cellular baseband firmware.
Kernel - The Apple Wiki
WEB3 days ago · The kernel of iOS is the XNU kernel. Pre-2.0, it was vulnerable to the Ramdisk Hack and may still be, but iBoot doesn't allow boot-args to be passed anymore. It is mapped to memory at 0x80000000, forcing a 2/2GB address separation, similar …
Towards the next generation of XNU memory safety: kalloc_type
WEBOct 27, 2022 · To inaugurate our security research blog, we present the first in a series of technical posts that delves into important memory safety upgrades in XNU, the kernel at the core of iPhone, iPad, and Mac.
architecture | Apple Developer Documentation
WEBAccess kernel-level interfaces including clock, task, kernel extension, lock, and compression utilities.
Kernel Structures | Apple Developer Documentation
WEBKernel Structures | Apple Developer Documentation. 5 of 50 symbols inside <root> containing 236 symbols. 6 of 50 symbols inside <root> containing 13 symbols. 7 of 50 symbols inside <root> containing 36 symbols. 8 of …
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