May 2010 - Darwin-kernel - lists.apple.com

Start /bin/sh or /bin/bash at boot time
by Rakesh Singhal 26 May '10

26 May '10

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Error in /usr/include/mach/message.h
by Antoine Missout 26 May '10

26 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi, On 10.6.3, doing a diff between /usr/include/mach/message.h and /System/Library/Frameworks/Kernel.framework/Headers/mach/message.h you'll notice "uint32_t pad_end;" is missing from mach_msg_port_descriptor_t in /usr/include/mach/message.h:238 Which leads to MIG_TYPE_ERROR (-300) when passing that structure between mig generated code compiled in userspace vs kernelspace (as the structs differ in size). Our fix was to add it back to the userland header, and everything started working. Just FYI. - Antoine _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Debugging a Kernel Extension
by Nik Gervae 24 May '10

24 May '10

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Re: Debugging a Kernel Extension
by Ken Hornstein 24 May '10

24 May '10

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com >When I get to the "Create the symbol file" step, I get the following errors: Are you actually using the debug kernel from the Kernel Debug Kit? Or are you using the stock kernel? If you're using the former, all you need is: sudo kextutil -s /test /test/SampleUSBAudioPlugin.kext (or something like that: I use -r and use -b to specify the bundle name but you get the idea). /Volumes/KernelDebugKit/mach_kernel is the "symbol-rich" version of the kernel that comes with 10.6.3; you use that with gdb. --Ken _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Debugging a Kernel Extension
by Leonard Shoell 24 May '10

24 May '10

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Re: processor_info x86 perf. counters
by Wade Tregaskis 19 May '10

19 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com > I'm not sure why Shark will not work with the open source kernel -- Could you please clarify ? I'm not actually sure if it will or won't, now. At some point I was under the impression that the open source kernel didn't have some necessary code in it, but now that I look [for Snow Leopard] it appears it does. Perhaps my prior knowledge was dated to Leopard and earlier. There have been reports over the years that it didn't work, though again I'm not sure if any of those pertained to Snow Leopard. If you do try, please let me know either way. Wade _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: processor_info x86 perf. counters
by ray dhurandhar 19 May '10

19 May '10

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Re: Using OSKextRequestResouce from kext init routine?
by Ken Hornstein 19 May '10

19 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com >The first issue is definitely worth addressing. The second, I can >probably fit in, but we do assume developers have read an overview of >the OS, including bundle structure. That said, kext development makes >minimal use of that structure, so again it's worth mentioning. > >I've filed the radars for those two issues directly, since I have the >info. Thanks! You know, I did look at the generic info about bundle structure, but it wasn't exactly obvious to me (of course, now that I look at it again, I see where it's mentioned ... dammit). I guess I should have read the CoreFoundation documentation more closely. --Ken _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Using OSKextRequestResouce from kext init routine?
by Nik Gervae 18 May '10

18 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 18 May, 2010, at 07:44 , Ken Hornstein wrote: >> If you find any documentation wanting in detail, please file a radar. >> There are limits to what we can cram into HeaderDoc, which is the only >> documentation I contribute directly to, but I spent the first half of my >> career as a technical writer so I take documentation very seriously and >> want to make sure it covers the bases. Any question you have that the >> doc doesn't address is a failure that needs to be corrected. You >> shouldn't have to experiment with our APIs to figure out how to use >> them. > > Okay ... how do I do that, exactly? (I had some vague impression that > radar is the Apple internal bug-tracking system). I think this will work: http://developer.apple.com/bugreporter/ > Just FYI, the two big thins documentation would have been nice for were the > aforementioned issue with the callback not being called until after the > start routine had exited, and the amazingly difficult question of > "Where exactly ARE resource files located inside of a kext?" (The > answer: ${KEXTDIR}/Contents/Resources. Hoo boy, that was a tough one > to find, and if that is documented somewhere, please let me know, > because I couldn't find it!). The first issue is definitely worth addressing. The second, I can probably fit in, but we do assume developers have read an overview of the OS, including bundle structure. That said, kext development makes minimal use of that structure, so again it's worth mentioning. I've filed the radars for those two issues directly, since I have the info. Cheers, Nik _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Using OSKextRequestResouce from kext init routine?
by Andrew Myrick 18 May '10

18 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On May 18, 2010, at 7:44 AM, Ken Hornstein wrote: >> If you find any documentation wanting in detail, please file a radar. >> There are limits to what we can cram into HeaderDoc, which is the only >> documentation I contribute directly to, but I spent the first half of my >> career as a technical writer so I take documentation very seriously and >> want to make sure it covers the bases. Any question you have that the >> doc doesn't address is a failure that needs to be corrected. You >> shouldn't have to experiment with our APIs to figure out how to use >> them. > > Okay ... how do I do that, exactly? (I had some vague impression that > radar is the Apple internal bug-tracking system). You can file bug reports at http://developer.apple.com/bugreporter/. -Andrew _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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