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

Re: List of accounts
by Tim Murison 20 Aug '09

20 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcohDXtGbWFzwv9F6kK3zREJ/ln5tAAA4jOcACNg7dM= Thread-topic: List of accounts User-agent: Microsoft-Entourage/12.20.0.090605 > If you want just local accounts that can log in, use > dscl /Local/Default -search Users PrimaryGroupID 20 Thanks for the suggestion. Does the system require that a user be a member of the gid=20 ("Users") group to log in? I guess the crux of my question would be, is this what Apple uses to populate the accounts system preferences dialog? -Tim *********************************************************************** 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/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: 64-bit Mac OS X kernel
by Mo McRoberts 20 Aug '09

20 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Thu, Aug 20, 2009 at 14:41, Esteban Bodigami<esteban.bodigami(a)gmail.com> wrote: > so... Xnu is 64 bit, but just for Apple employees... No. I'm not an Apple employee. As I said: I just wasn't logged into a 10.5.8 machine when I posted that. I really can't say any more than that. > The PowerMac G5 shouldn't have being advertised as 64-bit if the kernel > wasn't... > hey, even Carbon or Cocoa isn't 64bit (I don't care which API). There are plenty of 64-bit Cocoa apps on 10.5. 64-bit libSystem-only apps can run on Tiger, as far as memory serves. The PowerMac G5 is a 64-bit machine. It doesn't stop being a 64-bit machine if you decide to only run 32-bit apps. Similarly, a 64-bit _kernel_ is mostly irrelevant for the vast majority of people. All it means in practice is that your kexts will break. M. -- http://nevali.net _______________________________________________ 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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Runtime-linking of frameworks with variable paths, & replacing local symbols
by Jonathan del Strother 20 Aug '09

20 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:from:date :x-google-sender-auth:message-id:subject:to:content-type :content-transfer-encoding; bh=xSsARihk8tlmCXN4HS8S9dYM9zVkU9h9EiZPny65l0U=; b=BbGGHcjmLxidS8U6OB4D/iwKtYc6REykac1ssM6sQS0A85jzyd+McUM4ZwiPG/yd6A wf4iLQSCi8qHshnAA4zkrmonf0lxplr+gTZ9nWtAEt5BXQWbfYMiohI6wFiunE7Ombrr MtAbeuEAKFzw04UxceSHNFgxe+Io1vkTM9/ks= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:from:date:x-google-sender-auth:message-id :subject:to:content-type:content-transfer-encoding; b=EntW2V+mgQ9HEy0fHu+YZTG9vGORt2gSI63nPnCWc6wqbBxLNVEH1f73bKZ9syvLfo 3Satp/b2yFR4BwbKrTXEo6EzPZDzjhkG3J4S0+m33G3jWSDs5/DYR01m5wxsLhGokzWf oGyRj8HJRUmlQSLMCZy3+ea52yw7qbo+009lI= Heya, I'm loading a framework whose path isn't known until after my executable launches. I'm weak linking against the framework, and its exported functions are marked as weak_import. After loading the framework with dlopen() (or simply -[NSBundle load]), I can call objective-c methods in the framework fine. The trouble comes when I try and call its C functions, where it starts descending into dyld_stub_ craziness, followed by a crash : Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00000000 #0 0x00000000 in ?? () #1 0x000031dd in main (argc=1, argv=0xbffff2f8) at /Users/jon/Developer/encoder/encodermain.m:151 I can look up the functions one at a time using dlsym(), and assign them to local function pointers, and calling those then works ok, but obviously calling the original framework function still crashes. eg - if my framework exports "void FooBar();" : void (*myFooBar)(); myFooBar = dlsym(framework, "FooBar"); myFooBar(); // works fine FooBar(); // Crashes with dyld craziness Is there any way of replacing all references to FooBar in my executable with the newly looked up symbol address, or am I stuck with only being able to call through to the framework via local function pointers? Or is there a better way of accomplishing this? -Jonathan _______________________________________________ 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: which pages of the file are in the cache
by Joel Reymont 20 Aug '09

20 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:subject:mime-version :content-type:from:in-reply-to:date:cc:content-transfer-encoding :message-id:references:to:x-mailer; bh=N/wBwvL519m6885F4t2Hu6wREfqAXPHHw4mySLMkfcM=; b=oxt73Uy2T9T9663vJTCoADsWWcoBJI7knIdsn5h+BAiRMPWbNVy5/G2IFqCQe4cV7p oDumdbVDCWLacLIGvuLR+lx2X3/e1/yZ5uxWis3XKrf6U+NoXQaEulkbb8YQpSRRNRy1 GdaU9FQmdvfq/RxoqZTpygBJmU8dEJiToGiTo= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer; b=mxwJoWOZe4kIdao+wcvxPs81gwvUB+P5bF97sf5keAYRIBtSQ2FxvIooxRKVreKwnx 0digueNsJCnP3bBj2UJg5DQK1etEylQRfAgp4Lt3stfQfzoVmp1e8cJ1TMDQiPC+zzxX kMSngiFLgW5rTv9APD9v67sL3gFq1kT4Bgd+k= The trace looks like this: ... Does this mean that 4s are spent in the dynamic linking phase? Thanks, Joel P.S. and --- faster mac firefox http://tinyco.de _______________________________________________ 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 decided to step back for a second and run 'dapptrace -deoFU' to see what's going on. --- RELATIVE ELAPSD CPU CALL(args) = return 2083 . . -> dyld:ImageLoaderMachOCompressed::segmentCommandOffsets() const (0x8FE467C8, 0x0, 0xBFFFC608) 2084 71 1 <- dyld:ImageLoaderMachOCompressed::segmentCommandOffsets() const = 10 -> LaunchServices:_LSGetExtensionInfo(0xBFFFD00E, 0xD, 0xBFFFD224) 4004630 31 2 < - LaunchServices:_LSGetExtensionInfo = 332 4004633 . . -> LaunchServices:_LSCanSetExtensionHidden(0xBFFFE614, 0x1B06CF0, 0xBFFFD224) 4004635 37 2 < - LaunchServices:_LSCanSetExtensionHidden = 94 --- The list of shared libraries used by firefox-bin and XUL is very large (below). Running 'otool -l' I see nindirectsyms 7076 in the LC_DYSYMTAB section of XUL. Am I correct that 4s are being spent in the dynamic linking and "system startup" phase? What actions can I take to speed things up if so? firefox-bin: /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa (compatibility version 1.0.0, current version 12.0.0) @executable_path/XUL (compatibility version 1.0.0, current version 1.0.0) @executable_path/libmozjs.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libxpcom.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libplds4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libplc4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnspr4.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon (compatibility version 2.0.0, current version 136.0.0) /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioToolbox.framework/Versions/A/ AudioToolbox (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AddressBook.framework/Versions/A/ AddressBook (compatibility version 1.0.0, current version 700.0.0) /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.4.0) /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4) --- --- XUL: @executable_path/XUL (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa (compatibility version 1.0.0, current version 12.0.0) @executable_path/libsqlite3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libmozjs.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libsmime3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libssl3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnss3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnssutil3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libsoftokn3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libmozz.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libcups.2.dylib (compatibility version 2.0.0, current version 2.8.0) @executable_path/libplds4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libplc4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnspr4.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/ SystemConfiguration (compatibility version 1.0.0, current version 212.2.0) /System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime (compatibility version 1.0.0, current version 1290.0.0) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /usr/lib/libcrypto.0.9.7.dylib (compatibility version 0.9.7, current version 0.9.7) /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon (compatibility version 2.0.0, current version 136.0.0) /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioToolbox.framework/Versions/A/ AudioToolbox (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AddressBook.framework/Versions/A/ AddressBook (compatibility version 1.0.0, current version 700.0.0) /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.4.0) /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 227.0.0) /System/Library/Frameworks/CoreServices.framework/Versions/A/ CoreServices (compatibility version 1.0.0, current version 32.0.0) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/ CoreFoundation (compatibility version 150.0.0, current version 476.18.0) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ ApplicationServices (compatibility version 1.0.0, current version 34.0.0) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 677.24.0) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 949.46.0) This email sent to site_archiver(a)lists.apple.com

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Re: 64-bit Mac OS X kernel
by Mo McRoberts 20 Aug '09

20 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Uh, apologies. It seems I was inadvertently logged into the wrong machine when I wrote my earlier e-mail. On Wed, Aug 19, 2009 at 10:58, Mo McRoberts<lists(a)ilaven.net> wrote: > On Wed, Aug 19, 2009 at 10:53, rohan a<info1686(a)gmail.com> wrote: >> Hi All, >> Does Mac OS X 10.5 provide separate 32-bit and 64-bit kernels >> ?Or there is only one type of kernel supported. > > Under 10.5 (we can’t discuss 10.6 on this list), there is only one > kernel, which runs both 32-bit and 64-bit binaries. Although it > actually contains a 64-bit version of the code under 10.5.8, I don't > think it's ever actually booted as a 64-bit kernel outside of Apple’s > internal development labs. Stock 10.5.8 /mach_kernel, as shipped by Apple, only contains 2 architectures, x86 and ppc. It doesn't contain a x86_64 version. Apologies for the confusion. -- http://nevali.net _______________________________________________ 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: List of accounts
by Paul Nelson 19 Aug '09

19 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcohDXtGbWFzwv9F6kK3zREJ/ln5tAAA4jOc Thread-topic: List of accounts User-agent: Microsoft-Entourage/12.14.0.081024 Thursby's ADmitMac product will return AuthenticationAuthority for Active Directory accounts (it also will return every last one, not just the first 1000). If you want just local accounts that can log in, use dscl /Local/Default -search Users PrimaryGroupID 20 > From: Tim Murison <tim.murison(a)radialpoint.com> > Date: Wed, 19 Aug 2009 16:41:52 -0400 > To: darwin dev <darwin-dev(a)lists.apple.com> > Subject: Re: List of accounts > >> This will work to an extent, but it's worth bearing in mind that if >> you're connected to a directory service like Active Directory, you'll >> only get the first 1000 users back (for some definition of 'first') >> out of potentially a lot more. > > I'm only interested in local system accounts... At least at the moment. > >> You possibly also want to take into account (doubtless among other >> things) the contents of the com.apple.access_ssh and >> com.apple.acess_loginwindow groups, the contents of /etc/sshd_config >> and the status of the user's password (with regard to policy), all of >> which can affect whether a user can log in. >> >> If you want to be accurate, it's a tricky one! > > It seems that dscl . -list Users AuthenticationAuthority will only show the > accounts that I can login to. > > Is it safe to say that only users with an AuthenticationAuthority attribute > can login to the system (be it remotely or with GUI)? Is it likely that an > application that creates its own users would give them this attribute? I'm > guessing not since neither the www or mysql users have it. > > -Tim > > > > *********************************************************************** > > 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/nelson%40thursby.com > > This email sent to nelson(a)thursby.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: List of accounts
by Tim Murison 19 Aug '09

19 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcohDXtGbWFzwv9F6kK3zREJ/ln5tA== Thread-topic: List of accounts User-agent: Microsoft-Entourage/12.20.0.090605 > This will work to an extent, but it's worth bearing in mind that if > you're connected to a directory service like Active Directory, you'll > only get the first 1000 users back (for some definition of 'first') > out of potentially a lot more. I'm only interested in local system accounts... At least at the moment. > You possibly also want to take into account (doubtless among other > things) the contents of the com.apple.access_ssh and > com.apple.acess_loginwindow groups, the contents of /etc/sshd_config > and the status of the user's password (with regard to policy), all of > which can affect whether a user can log in. > > If you want to be accurate, it's a tricky one! It seems that dscl . -list Users AuthenticationAuthority will only show the accounts that I can login to. Is it safe to say that only users with an AuthenticationAuthority attribute can login to the system (be it remotely or with GUI)? Is it likely that an application that creates its own users would give them this attribute? I'm guessing not since neither the www or mysql users have it. -Tim *********************************************************************** 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/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: 64-bit Mac OS X kernel
by rohan a 19 Aug '09

19 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=o0twvB7vOoNVBqiaZvG7Oa8qBcBJQPr/3fpbvtMYslo=; b=QwdFpur/MnL5en7stQxwkRJK4H1wcCHBT46i4c3mNf0q1r6tTYGQMN9HuUAk4gSqYZ LNVcVxpSHlsKkaFeO/gq2xS681G9q7SFoadVC8aTBRhTy4apoPhUbV+DssxFhsF6AkhG ZEhaOsajBrlUFNAnemqrAbSSWo05Cf/j86WJw= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=Prsbp9rzcj/v9uD4f9QKeOjKHanSJl6UxYlomSYxHuy5hBd9Rq7XwYvR7VZSLJNTLj hGAnDmnR+2csszvfaw+l98hMBCmlmM7z76Ba7uyhp9JH3ekxsUyVQRnUCqD0r+T+FC2A aBfdmzgu5TI1u519YWkzni7pXKOYM7O2YlOgI= Thanks everyone for the help. On Wed, Aug 19, 2009 at 4:12 PM, Mo McRoberts<lists(a)ilaven.net> wrote: > On Wed, Aug 19, 2009 at 11:25, rohan a<info1686(a)gmail.com> wrote: >> I was mainly asking this from an application testing perspective. >> Hence, wanted to know whether there are different installation images >> available for 32-bit and 64-bit OS. > > Unless you’re writing kexts, you don’t really need to care whether the > kernel’s 32-bit or 64-bit. Provided you have an x86_64 Mac, you can > run 64-bit applications, and you can switch between 64-bit and 32-bit > mode for your application by using 'arch', Finder’s Get Info panel, or > Info.plist keys as necessary (or just create separate build products > for each architecture while testing). > > M. > > -- > http://nevali.net > _______________________________________________ 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: 64-bit Mac OS X kernel
by Jean-Daniel Dupas 19 Aug '09

19 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Le 19 août 2009 à 12:25, rohan a a écrit : I was mainly asking this from an application testing perspective. Hence, wanted to know whether there are different installation images available for 32-bit and 64-bit OS. Thanks for this. However, why then are there 4 binary types : x86, x86_64, ppc32 and ppc64 when the kernel itself is a 32-bit. Will it be able to take advantage of the other 32-bits ? On Wed, Aug 19, 2009 at 3:30 PM, Jean-Daniel Dupas<devlists(a)shadowlab.org> wrote: Le 19 août 2009 à 11:53, rohan a a écrit : Hi All, Does Mac OS X 10.5 provide separate 32-bit and 64-bit kernels ?Or there is only one type of kernel supported. If not are there only 2 version: Intel i386 and PowerPC ? http://developer.apple.com/documentation/Darwin/Conceptual/64bitPorting/int… http://developer.apple.com/documentation/MacOSX/Conceptual/universal_binary… _______________________________________________ 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… There is no such thing than 32 bit Mac OS X and 64 bit Mac OS X. The kernel can execute 32 bit and 64 bit application whatever its architecture is. A 64 bit applications run in a "64 bit" address space and uses the 64 bit ABI whatever the kernel arch is. On Wed, Aug 19, 2009 at 3:46 PM, rohan a<info1686(a)gmail.com> wrote: What I mean is that like Windows has separate version x86, x86_64, IA is there something like this for Mac OS X 10.5 as well ? and does the same thing run on 32-bit and 64-bit hardware ? Most (if not all) of the answers are in the 64 bit Transition Guide and in The Universal Binary programming Guide. This email sent to site_archiver(a)lists.apple.com

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Re: 64-bit Mac OS X kernel
by rohan a 19 Aug '09

19 Aug '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=T/5rpyA202zxTzLyPIq8LcaamtxyliequOcSddPkubA=; b=DvuS4DNhDdfUeDAz7W0HgpRl6kHZxAb79DVBnVyjM7wlmzQbbJuwh5LshSti/WA5Ew 46/VKTRz45GoB4u5l4P9sMoYDFVMjDEU+uCXBR63BoIEC5y3L84PNVnyCHqCD9msSXww SoA2IUzZ0hWxZsKAGHR/WgdDVsBlHRwepaQ6U= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=L68MK6mWToo2riqCIRchTZqPgebuYMFYbc9neKT6LSMhjqBX9XXBRtCjmYzuGt8xzr ppX3IIP+kQ/xvgBRY1lt8IRPKmC/SpUw9lQk2marsIWujGVLeiM/WZZVhgqoMBpkdxWz jPV2hBuGdPogJ8J+tjs7IFTeOJrdB4o99rcqs= I was mainly asking this from an application testing perspective. Hence, wanted to know whether there are different installation images available for 32-bit and 64-bit OS. On Wed, Aug 19, 2009 at 3:46 PM, rohan a<info1686(a)gmail.com> wrote: > Thanks for this. > > However, why then are there 4 binary types : > x86, x86_64, ppc32 and ppc64 when the kernel itself is a 32-bit. > > Will it be able to take advantage of the other 32-bits ? > > On Wed, Aug 19, 2009 at 3:30 PM, Jean-Daniel > Dupas<devlists(a)shadowlab.org> wrote: >> >> Le 19 août 2009 à 11:53, rohan a a écrit : >> >>> Hi All, >>> Does Mac OS X 10.5 provide separate 32-bit and 64-bit kernels >>> ?Or there is only one type of kernel supported. >>> >>> What I mean is that like Windows has separate version x86, x86_64, IA >>> is there something like this for Mac OS X 10.5 as well ? >>> >>> If not are there only 2 version: >>> Intel i386 and PowerPC ? >>> >>> and does the same thing run on 32-bit and 64-bit hardware ? >> >> Most (if not all) of the answers are in the 64 bit Transition Guide and in >> The Universal Binary programming Guide. >> >> http://developer.apple.com/documentation/Darwin/Conceptual/64bitPorting/int… >> >> http://developer.apple.com/documentation/MacOSX/Conceptual/universal_binary… >> >> >> >> > _______________________________________________ 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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