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

Re: Checking if a volume is a FileVault volume?
by Mike Fischer 17 Jan '08

17 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Am 17.01.2008 um 21:04 schrieb Nick Zitzmann <nick(a)chronosnet.com>: I Googled around & didn't see anything that helped. How do I tell if a volume is not just a mounted disk image, but a mounted FileVault disk image? I need to be able to distinguish between the two... Somehow the Finder does this, so I was hoping there was some way of doing this using IOKit... HTH Mike -- Mike Fischer Softwareentwicklung, EDV-Beratung Schulung, Vertrieb Note: I read this list in digest mode! Send me a private copy for faster responses. _______________________________________________ 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… Empirically I'd check if a) ACLs are enabled for the volume and b) the volume contains a top-level directory called "Backups.backupdb". The later is probably more relevant than the former. Both rely on the current implementation not changing though so YMMV. Of course you could also look at /Library/Preferences/ com.apple.TimeMachine.plist for the current settings of the key BackupAlias. Again, this is highly implementation dependant obviously. defaults(1) would be your friend for reading this file in a compatible way. This email sent to site_archiver(a)lists.apple.com

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Re: Tracking source of launchd "Throttling respawn: Will start in 60 seconds" message?
by Dave Zarzycki 17 Jan '08

17 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com The output looks like so: davez On Jan 17, 2008, at 9:57 AM, Jim Correia wrote: How can I determine the source of this message? Thanks, Jim _______________________________________________ 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/zarzycki%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… _timestamp_ _hostname_ _sender_of_message_[_pid_] _about_whom_[_pid_] _message_ In this case, launchd is complaining about dyld. This is well known bug in dyld, which should [hopefully] be addressed in 10.5.2. One one of my machines I'm getting a message logged to the console roughly every minute of the form: Jan 17 12:54:27 Great-White-North com.apple.launchd[1] (com.apple.dyld): Throttling respawn: Will start in 60 seconds This is a stock 10.5.1 machine + 2 LaunchDaemons that I brought over from a 10.4 machine. This email sent to zarzycki(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Tracking source of launchd "Throttling respawn: Will start in 60 seconds" message?
by Jim Correia 17 Jan '08

17 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com How can I determine the source of this message? Thanks, Jim _______________________________________________ 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… One one of my machines I'm getting a message logged to the console roughly every minute of the form: Jan 17 12:54:27 Great-White-North com.apple.launchd[1] (com.apple.dyld): Throttling respawn: Will start in 60 seconds This is a stock 10.5.1 machine + 2 LaunchDaemons that I brought over from a 10.4 machine. This email sent to site_archiver(a)lists.apple.com

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Checking if a volume is a FileVault volume?
by Nick Zitzmann 17 Jan '08

17 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Nick Zitzmann <http://www.chronosnet.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… I Googled around & didn't see anything that helped. How do I tell if a volume is not just a mounted disk image, but a mounted FileVault disk image? I need to be able to distinguish between the two... Somehow the Finder does this, so I was hoping there was some way of doing this using IOKit... This email sent to site_archiver(a)lists.apple.com

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Two Machine Debugging and the MacBook Air?
by Duane Murphy 16 Jan '08

16 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com The new MacBook Air has neither FireWire or built-in Ethernet. How does one two machine debug a MacBook Air? Or more generally, how would one kernel debug the MacBook Air. I would expect that Apple has some solution to debugging MacBook Air specific drivers, etc. Comments, thoughts? ...Duane -- "Design is an interplay of science and art - the instinct of using exactly the right methods and resources that the application requires." - Bernard Friedland, "Control System Design" _______________________________________________ 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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compiling dtrace-48
by Peter Bartoli 14 Jan '08

14 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com -peter _______________________________________________ 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… The dtrace-48 source package seems to need the headers from the Symbolication private framework, and I can't seem to find them anywhere. Can somebody aim me at these, or are they not released? This email sent to site_archiver(a)lists.apple.com

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Re: OS X Shared Libraries
by Peter O'Gorman 14 Jan '08

14 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.9 (X11/20071115) Simon J. Bale wrote: > Can I confirm that I'm correct in assuming that the library paths are > usually hard coded into Mach-O binaries? Library paths are usually absolute paths on Mac OS X (is this what you mean by 'hard coded'?). It is the equivalent of using an absolute soname on an ELF system. These install names are encoded into the libraries and their clients in the mach-o header. See the Xcode documentation and the manpages for ld(1), dyld(1) install_name_tool(1) etc for more information on: @executable_path @loader_path @rpath Peter -- Peter O'Gorman http://pogma.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: OS X Shared Libraries
by Simon J. Bale 14 Jan '08

14 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 14 Jan 2008, at 10:18, Sebastian Hagedorn wrote: --On 14. Januar 2008 10:00:31 +0000 elabsjng(a)mac.com wrote: By using relative paths, e.g.: _______________________________________________ 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… Can I confirm that I'm correct in assuming that the library paths are usually hard coded into Mach-O binaries? I'm fairly new to OS X and I have a basic question regarding shared library handling. I notice that when I run otool -L on a binary that the full path of any shared libraries is returned. Is the full path directly encoded into the executable? Does OS X have a system similar to Linux where the runtime linker searches several system paths for the required libraries? If i compile an application that generates its own libraries and then links it's executable against these libraries the hard coded path will point to the build directory. Obviously this would cause a problem when the binaries and shared libraries are installed into the system path, how is this typically avoided? OmniWeb: @executable_path/../Frameworks/OWF.framework/Versions/A/OWF (compatibility version 1.0.0, current version 1.0.0) You can also change the paths afterwards by using /usr/bin/ install_name_tool. -- .:.Sebastian Hagedorn - RZKR-R1 (Gebäude 52), Zimmer 18.:. Zentrum für angewandte Informatik - Universitätsweiter Service RRZK .:.Universität zu Köln / Cologne University - ✆ +49-221-478-5587.:. .:.:.:.Skype: shagedorn.:.:.:. This email sent to site_archiver(a)lists.apple.com

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Re: OS X Shared Libraries
by Sebastian Hagedorn 14 Jan '08

14 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com --On 14. Januar 2008 10:00:31 +0000 elabsjng(a)mac.com wrote: I'm fairly new to OS X and I have a basic question regarding shared library handling. I notice that when I run otool -L on a binary that the full path of any shared libraries is returned. Is the full path directly encoded into the executable? Does OS X have a system similar to Linux where the runtime linker searches several system paths for the required libraries? If i compile an application that generates its own libraries and then links it's executable against these libraries the hard coded path will point to the build directory. Obviously this would cause a problem when the binaries and shared libraries are installed into the system path, how is this typically avoided? By using relative paths, e.g.: _______________________________________________ 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 OmniWeb: @executable_path/../Frameworks/OWF.framework/Versions/A/OWF (compatibility version 1.0.0, current version 1.0.0) You can also change the paths afterwards by using /usr/bin/install_name_tool. -- .:.Sebastian Hagedorn - RZKR-R1 (Gebäude 52), Zimmer 18.:. Zentrum für angewandte Informatik - Universitätsweiter Service RRZK .:.Universität zu Köln / Cologne University - ✆ +49-221-478-5587.:. .:.:.:.Skype: shagedorn.:.:.:. pgpaqRw8Ius00.pgp

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OS X Shared Libraries
by elabsjng＠mac.com 14 Jan '08

14 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, Best Regards, Simon. _______________________________________________ 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 fairly new to OS X and I have a basic question regarding shared library handling. I notice that when I run otool -L on a binary that the full path of any shared libraries is returned. Is the full path directly encoded into the executable? Does OS X have a system similar to Linux where the runtime linker searches several system paths for the required libraries? If i compile an application that generates its own libraries and then links it's executable against these libraries the hard coded path will point to the build directory. Obviously this would cause a problem when the binaries and shared libraries are installed into the system path, how is this typically avoided? This email sent to site_archiver(a)lists.apple.com

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