August 2009 - Darwin-dev - lists.apple.com

ucontext.h changes between 10.4 and 10.5?
by Rick Mann 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Any ideas? TIA, Rick _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I have some code that was compiling when the project was set to 10.4 or "Use Base SDK" (I'm not really sure what that means. In my project, Base SDK is set to 10.5). But if I compile it with 10.5 (the Overview menu), it fails in a lot of ways, including issues around ucontext and sigcontext. I'm not able to significantly change this code. It's deep in our custom OS code. Is it just a matter of changing the name of the struct we're referencing or include a different header? This email sent to site_archiver(a)lists.apple.com

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Re: Open Source Release for Mac OS X 10.5.8
by Dave Schroeder 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Darwin as the UNIX core of Mac OS X is very much alive. - Dave On Aug 12, 2009, at 12:47 PM, Éric Lévénez wrote: Is Darwin dead ? _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com Darwin as a bootable OS *from Apple* is dead, and has been for quite some time. OpenDarwin took up the torch for some time, but is also no more. Darwin as a collection of open source projects and software components included in Mac OS X is very much alive; some with considerable community participation and adoption; see e.g. http://www.macosforge.org Darwin as a bootable OS from the community is as alive as the community can make it; see e.g. http://www.puredarwin.org/ You won't get an Apple statement saying "Darwin is dead", because Darwin means so many things. You also (probably) won't get an Apple statement saying "Darwin OS is dead". And since "Darwin" is the core of Mac OS X, and Mac OS X (as of 10.5.x) is one of few OSes actually officially able to be labeled "UNIX", you may still want to reference Darwin with respect to your descriptions for Mac OS X. At the beginning of Darwin project, the announcement was about Darwin OS, with Darwin release number. The last one was, I think, Darwin 9.7. It seems to me that the Darwin operating system is fading out. For Mac OS X 10.5.8, no word about Darwin 9.8. My question is not about the open source projects under the Darwin name, but only about Darwin as a standalone operating system. I have a little history of Unix systems on my web site, and I am thinking about not talking about Darwin OS for the future releases (in particular for Mac OS X 10.6). I only want to have Apple feedback on that little question :-) Thank you. smime.p7s

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Re: Open Source Release for Mac OS X 10.5.8
by Éric Lévénez 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Is Darwin dead ? Thank you. -- Éric Lévénez -- <http://www.levenez.com/> Unix is not only an OS, it's a way of life _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com At the beginning of Darwin project, the announcement was about Darwin OS, with Darwin release number. The last one was, I think, Darwin 9.7. It seems to me that the Darwin operating system is fading out. For Mac OS X 10.5.8, no word about Darwin 9.8. My question is not about the open source projects under the Darwin name, but only about Darwin as a standalone operating system. I have a little history of Unix systems on my web site, and I am thinking about not talking about Darwin OS for the future releases (in particular for Mac OS X 10.6). I only want to have Apple feedback on that little question :-) smime.p7s

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Re: assembly jmp to hard-coded address with gcc
by Steve Checkoway 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Aug 12, 2009, at 5:25 AM, Chris Ridd wrote: -- Steve Checkoway _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Everyone's forgotten the rather useful Services > ISA Reference > Lookup x86 instruction :-) That's fantastic! I never use the Services menu so I had no idea that was there. Thanks for pointing that out. This email sent to site_archiver(a)lists.apple.com

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Re: assembly jmp to hard-coded address with gcc
by Chris Ridd 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 12 Aug 2009, at 10:04, Steve Checkoway wrote: On Aug 12, 2009, at 3:00 AM, Thierry bultel wrote: Cheers, Chris _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I am not a x86 assembly expert, but I am pretty sure that jmp does not take an immediate address as a parameter. I am also not an x86 expert, but I think that jmp _does_ take an immediate offset (as your second example demonstrates) or absolute address <http://en.wikipedia.org/wiki/JMP_(x86_instruction)>. The hotel wireless is slow enough here to prevent me from downloading the manual linked on that page to figure out exactly what is possible with jmp. Everyone's forgotten the rather useful Services > ISA Reference > Lookup x86 instruction :-) This email sent to site_archiver(a)lists.apple.com

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Re: assembly jmp to hard-coded address with gcc
by Steve Checkoway 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Aug 12, 2009, at 3:00 AM, Thierry bultel wrote: -- Steve Checkoway _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I am not a x86 assembly expert, but I am pretty sure that jmp does not take an immediate address as a parameter. I am also not an x86 expert, but I think that jmp _does_ take an immediate offset (as your second example demonstrates) or absolute address <http://en.wikipedia.org/wiki/JMP_(x86_instruction)>. The hotel wireless is slow enough here to prevent me from downloading the manual linked on that page to figure out exactly what is possible with jmp. This email sent to site_archiver(a)lists.apple.com

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Re: assembly jmp to hard-coded address with gcc
by Thierry bultel 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.22 (Windows/20090605) _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/thierry.bultel%40atempo.c… This email sent to thierry.bultel(a)atempo.com begin:vcard fn:Thierry Bultel n:Bultel;Thierry org:Atempo SA;V.O.S team adr;dom:;;+33297683688 email;internet:thierry.bultel@atempo.com title:Software engineer tel;work:+33297683688 note;quoted-printable:=0D=0A= =0D=0A= version:2.1 end:vcard _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Loading Kernel Extension
by Cindy Berry 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Resent-date: Wed, 12 Aug 2009 04:13:08 +0100 (BST) Resent-from: Veg <veg(a)fatsquirrel.org> Resent-message-id: <alpine.BSF.2.00.0908120413080.77017(a)jeremiah.wetnorks.net> Resent-subject: Re: Loading Kernel Extension Resent-to: darwin-dev(a)lists.apple.com Resent-user-agent: Alpine 2.00 (BSF 1167 2008-08-23) User-agent: Alpine 2.00 (BSF 1167 2008-08-23) What is the reason why you don't want to use kextload? I generally prefer not invoking a utility from within my own program unless I have to. It strikes me as an ugly way of performing a task. Why? I can understand if you are coming from something like the Linux world, where contracts between various components of the system are weak and inconsistent, but you need to understand that MacOS X is not Linux in this case. Not invoking utilities from apps ? Contracts ? They're all mad! Nurse! Get the Valium! _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Loading Kernel Extension
by Michael Smith 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Loading Kernel Extension
by Nik Gervae 12 Aug '09

12 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Nik Gervae Kext Management Engineer Apple, Inc. On 11 Aug, 2009, at 11:40, Tim Murison wrote: *********************************************************************** _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On all releases of Darwin/Mac OS X through Leopard, you have to run kextload to load a kext explicitly. This is and will be the fully- supported mechanism for loading a kext on all releases, whatever changes we may make in future releases. What is the reason why you don't want to use kextload? I generally prefer not invoking a utility from within my own program unless I have to. It strikes me as an ugly way of performing a task. If there is no other way then I'll invoke kextload, I was just hoping for an overlooked API. This e-mail and its attachments are confidential, legally privileged, may be subject to copyright and sent solely for the attention of the addressee(s). Any unauthorized use or disclosure is prohibited. Statements and opinions expressed in this e-mail may not represent those of Radialpoint. Le contenu de ce courriel est confidentiel, privilégié et peut être soumis à des droits d'auteur. Il est envoyé à l'intention exclusive de son ou de ses destinataires. Il est interdit de l'utiliser ou de le divulguer sans autorisation. Les opinions exprimées dans le présent courriel peuvent diverger de celles de Radialpoint. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/ngervae%40apple.com This email sent to ngervae(a)apple.com This email sent to site_archiver(a)lists.apple.com

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