Sep 23, 2020 · Now, back to Darwin: Darwin is basically the underpinnings of macOS, from the xnu kernel, IOKit, drivers, etc. up to the BSD libraries and userland, plus some macOS-specific developments such as mDNSresponder and launchd. It does not, however, include any parts of what used to be OpenStep, Cocoa, Aqua, Quartz, QuickTime, or any of the other ...

Aug 31, 2015 · For each version of the XNU kernel, there is a syscalls.master file that gives me what I want (for example, here is one for XNU 2782.20.48). I can see my current XNU version with uname -a. But I don't know how to find what version of …

Mar 31, 2017 · After this question was raised, the blog post Building XNU for macOS 11.2 (Intel + Apple Silicon) provided much of the necessary information on both building and booting the XNU kernel, although the post is probably now overdue a refresh.

Aug 18, 2023 · On apple's website, MacOS 12.5.1 is shipped with XNU kernel 8020.140.41 But from uname -a I got root:xnu ...

Apr 4, 2010 · Specifically, see the file syscalls.master in the XNU distribution. (If something you expect is missing, try a newer XNU version.) The BSD part of the system calls comes from BSD, but there're mach calls which follow quite different conventions. You'll definitely want to read Amit Singh's OS X kernel book, see the book's website. It's rewritten ...

Apr 17, 2011 · On one hand, Linux had a considerable head start on XNU, having been first released in 1991. While I can't seem to find information on a release date for XNU, I'm quite sure it happened after Apple acquired NeXT, in 1997. Also, the kernel design used in XNU may not be easy for some developers to get their head around.

Oct 5, 2016 · I am attempting to hand-write a Mach-O executable. There are three load commands: LC_SEGMENT_64 loading __PAGEZERO LC_SEGMENT_64 loading __TEXT, with a single __text section LC_UNIXTHREAD with an

Aug 6, 2012 · I've seen lots of instructions for older kernels that came with Mac OS X 10.4 but the newer sources lack a lot of the things that the instructions contain. Just running make on the XNU kernel source brings a lot of errors about not finding ctfconvert, ctfmerge and ctfdump. Does anyone have a good "howto" to build a new kernel?

Feb 22, 2016 · I'd like to figure out how does VMMAP process operates. After running this executable with dtrace, it seems that the method proc_regionfilename that extract the address space of each section in the

Mar 12, 2022 · When I add this code to older kernels and recompile XNU, they no longer panic while running Chromium Legacy. My question is, why did it take Apple until macOS Sierra to handle THREAD_RESTART in this function? THREAD_RESTART is a valid value for wait_result_t, and is returned by various internal kernel functions.