April 2008 - Darwin-dev - lists.apple.com

kevent and disk eject
by Philip Aker 19 Apr '08

19 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, Thanks for any comments, Philip Aker echo astwta@lvpc.dslh@nl | tr a-z@. p-za-o.@ Sent from my SE/30 _______________________________________________ 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'm new to kqueue/kevent and currently using them in a background Carbon helper application with the goal of sending notifications to a Cocoa app. I have some a simple folder detection code working. For example if one of the target folders is renamed or deleted, one or another of the fflags is received correctly and I forward the notification. However, if the folder is on a USB or Firewire disk and I eject the disk, I don't seem to be getting any message. Is there a set of input conditions that will allow me to detect the eject from kqueue? I know I can use volume events in Carbon for disk insertion and eject but had hoped to keep things at the same level and eventually move this background app down to a CFRunLoop tool. This email sent to site_archiver(a)lists.apple.com

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Re: mdworker (spotlight) indexing Time Machine volume
by Achille 19 Apr '08

19 Apr '08

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Re: mdworker (spotlight) indexing Time Machine volume
by Eric Gouriou 18 Apr '08

18 Apr '08

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Re: mdworker (spotlight) indexing Time Machine volume
by Justin Ko 18 Apr '08

18 Apr '08

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mdworker (spotlight) indexing Time Machine volume
by Achille 18 Apr '08

18 Apr '08

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Re: mach-o section question
by Andrew Myrick 18 Apr '08

18 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com http://developer.apple.com/documentation/DeveloperTools/Conceptual/MachORun… -Andrew On Apr 18, 2008, at 12:41 PM, Army Research Lab wrote: Thanks, Cem Karan On 4/17/08 8:49 PM, "Godfrey van der Linden" <gvdl(a)mac.com> wrote: Yeah I agree with Stephen. Reading the mach-o header directly will probably be more robust than depending on the output of nm. There is some fairly easy to understand code in the kernel sources that parses the fat and mach-o headers. Cheers Godfrey On 2008-04-18, at 0:24 , stephen joseph butler wrote: Can anyone fill me in on what those unknown sections are? I briefly looked at the Mac OS X ABI Mach-O File Format Reference (http://developer.apple.com/documentation/DeveloperTools/Conceptual/MachORun time/Reference/reference.html), which is where I got the few definitions I have above, but I'd like to know more. Have you checked the headers in /usr/include/mach-o/? Poking around loader.h, I see defines for some of your sections with some quick comments. There might be more information hidden in other files. _______________________________________________ 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/gvdl%40mac.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/amyrick%40apple.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… Send your questions to the list; I'm sure there are a few of us who have dealt with mach-o parsing before who would be happy to help. Also, check out this document: While it's not as complete as the headers in /usr/include/mach-o/, it still contains good information. OK, just started reading it... that is going to take me a while to fully figure out. If/when I get into trouble, do you mind if I ask you questions? See xnu/libsa/kld_patch.c: kld_file_map(). There is a lot of other stuff in there that you don't need but the parsing of the fat and mach- o headers are fairly straight forward. I know this code pretty well since I wrote it ;-). On Wed, Apr 16, 2008 at 9:36 AM, Army Research Lab <ckaran(a)arl.army.mil wrote: This email sent to gvdl(a)mac.com This email sent to amyrick(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: mach-o section question
by Army Research Lab 18 Apr '08

18 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcihjCxAauanEw1/Ed2dxQAdT0T19A== Thread-topic: mach-o section question User-agent: Microsoft-Entourage/11.4.0.080122 OK, just started reading it... that is going to take me a while to fully figure out. If/when I get into trouble, do you mind if I ask you questions? Thanks, Cem Karan On 4/17/08 8:49 PM, "Godfrey van der Linden" <gvdl(a)mac.com> wrote: > Yeah I agree with Stephen. Reading the mach-o header directly will > probably be more robust than depending on the output of nm. There is > some fairly easy to understand code in the kernel sources that parses > the fat and mach-o headers. > > See xnu/libsa/kld_patch.c: kld_file_map(). There is a lot of other > stuff in there that you don't need but the parsing of the fat and mach- > o headers are fairly straight forward. I know this code pretty well > since I wrote it ;-). > > Cheers > > Godfrey > > > On 2008-04-18, at 0:24 , stephen joseph butler wrote: > >> On Wed, Apr 16, 2008 at 9:36 AM, Army Research Lab <ckaran(a)arl.army.mil >>> wrote: >> Can anyone fill me in on what those unknown sections are? I briefly >> looked >> at the Mac OS X ABI Mach-O File Format Reference >> (http://developer.apple.com/documentation/DeveloperTools/Conceptual/MachORun >> time/Reference/reference.html), which is where I got the few >> definitions I >> have above, but I'd like to know more. >> >> Have you checked the headers in /usr/include/mach-o/? Poking around >> loader.h, I see defines for some of your sections with some quick >> comments. There might be more information hidden in other files. >> _______________________________________________ >> 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/gvdl%40mac.com >> >> This email sent to gvdl(a)mac.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: mach-o section question
by Army Research Lab 18 Apr '08

18 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcihRHYFtGyP9A03Ed2dxQAdT0T19A== Thread-topic: mach-o section question User-agent: Microsoft-Entourage/11.4.0.080122 > Date: Thu, 17 Apr 2008 09:24:39 -0500 > From: "stephen joseph butler" <stephen.butler(a)gmail.com> > Subject: Re: mach-o section question > > On Wed, Apr 16, 2008 at 9:36 AM, Army Research Lab <ckaran(a)arl.army.mil> > wrote: > >> Can anyone fill me in on what those unknown sections are? I briefly >> looked >> at the Mac OS X ABI Mach-O File Format Reference >> ( >> http://developer.apple.com/documentation/DeveloperTools/Conceptual/MachORun >> time/Reference/reference.html<http://developer.apple.com/documentation/Develo >> perTools/Conceptual/MachORuntime/Reference/reference.html>), >> which is where I got the few definitions I >> have above, but I'd like to know more. > > > Have you checked the headers in /usr/include/mach-o/? Poking around > loader.h, I see defines for some of your sections with some quick comments. > There might be more information hidden in other files. Briefly started poking at it. It looks likely that I need to use functions in mach-o/nlist.h. The only reason I've been avoiding it is because my program is written in Python, and was hoping for a quick hack; however, the more I hack, the bigger the quagmire gets! :P I'll look at nlist this weekend. Since the rest of my code more or less works right, I'll probably use SWIG to generate some bindings so I can parse stuff using Python. Thanks, Cem Karan _______________________________________________ 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: mach-o section question
by Godfrey van der Linden 18 Apr '08

18 Apr '08

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: mach-o section question
by stephen joseph butler 17 Apr '08

17 Apr '08

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