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

Re: Determining architecture type at run time
by Arnab Ganguly 27 Apr '09

27 Apr '09

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Re: Determining architecture type at run time
by rohan a 27 Apr '09

27 Apr '09

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Re: Determining architecture type at run time
by rohan a 27 Apr '09

27 Apr '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; bh=RSDeO8xRb4RD/C+6eLpkzGq4wXLmaZAxWT5XooN72rg=; b=oYvTbZDtWF41SJJsfGEfp7jTxKHbnQNP9ziEkY5gtcI/TN2/HBd6XTNSrxKdi1QzUj r4z1MqGJpjf0gYuo+HfWkh0dbyqLoSLeYsqm0SqtOkoNq4h5vuSGSRAjIm9J88bulUp/ 778aKo+DyKQT7sdGlyxelHlqbTux82oGx85To= 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; b=V017DXphGzjiQEJ6pBvh9OmGUN38q/LiX0TlwGRK8Rb8GxmG9P9gZc1vjPiHLc0Ozx ugQE9X2HKLtoDL+JwghRiXKvH4616oHKj0/4DVQK36fIed+ny/QhizCIfYkZh7OHqWdE JeGZupLxL6lBOwk4yfCE1stKVNKP6Oz4c5+mk= _______________________________________________ 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: Determining architecture type at run time
by Jonas Maebe 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 27 Apr 2009, at 13:20, Brian Bergstrand wrote: Jonas _______________________________________________ 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… ENOENT is "no such file or directory". That would mean there's no name mapping for hw.machine_arch, so use sysctl() instead with HW_MACHINE_ARCH as the MIB ID. Or look at the output of "sysctl -a" on the command line to see which selectors are available. This email sent to site_archiver(a)lists.apple.com

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Re: Determining architecture type at run time
by Brian Bergstrand 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Apr 27, 2009, at 2:02 PM, rohan a wrote: Hi, Thanks for this. I tried the following : #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/types.h> #include <sys/sysctl.h> extern int errno; int main(void) { int len; char cpuarch[64]; However, sysctlbyname fails with the error sysctlbyname(): No such file or directory What needs to be done? $ man 3 sysctl On Apr 27, 2009, at 12:11 PM, rohan a wrote: Thanks _______________________________________________ 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… ENOENT is "no such file or directory". That would mean there's no name mapping for hw.machine_arch, so use sysctl() instead with HW_MACHINE_ARCH as the MIB ID. len = sizeof(cpuarch); if (sysctlbyname("hw.machine_arch", cpuarch, &len, NULL, NULL) == -1) { perror("sysctlbyname()"); return -1; } return 0; } On 4/27/09, Brian Bergstrand <brian(a)classicalguitar.net> wrote: #include <sys/sysctl.h> Hello, I need to determine at program run time, the architecture type(x86, ppc or x86_64) of the Mac OS X machine. Is it possible to do this? Does Mac OS provide any API for this? This email sent to site_archiver(a)lists.apple.com

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Re: Determining architecture type at run time
by Terry Lambert 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Why do you need to know? You can always: #if __PPC__ #if __LP64__ ... -- Terry _______________________________________________ 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 Apr 27, 2009, at 2:11 AM, rohan a <info1686(a)gmail.com> wrote: Hello, I need to determine at program run time, the architecture type(x86, ppc or x86_64) of the Mac OS X machine. Is it possible to do this? Does Mac OS provide any API for this? and set some variable at compile time, but the only real reason to need to know is if your code is architecture dependent, which you'd determine at compile time anyway (and it's better to write your code so it doesn't care). This email sent to site_archiver(a)lists.apple.com

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Re: Determining architecture type at run time
by Arnab Ganguly 27 Apr '09

27 Apr '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; bh=Y/ERIrQEayYczt4tVCSrjsrAQhCwmJ1cXKHOZeTiEjk=; b=THL0527dXgT7WwVbAphfJbqsfVdWvxICCaRwJkBgRabMGH1HPNf4UBtG++H9zFzXOj dBG8p/1CZ+Cn3t8HEvpw7eFzs2wr8nSh1l7d/bybox/nqklf45+l6EgGIM2uYj45jT9u Jhb1/8Zfbt8mb9zfaC4jA85lIBBX8qzmPVeE0= 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; b=J5qgkqlOJdQyFZLWDvKgeRBpObKwbcyLjUCxcVSxfS3HRb5gydW91ObWr/xRCoajra ikXsp/Tyt0ZDR39QUnUbMLKTOKfOikv5XzvfUxH9GijVWzrwhrKx/GqrZUfk5M+aMlWo eaQM/3/FWJVvm8DVwP0maQhlEli35zvE6UjTM= _______________________________________________ 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: Determining architecture type at run time
by rohan a 27 Apr '09

27 Apr '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; bh=hgOybHUl85ByMbevsQ8oyHxAETMOMccucrSh4cjm2PM=; b=mxZugdhFzbJNvPhuEO4qWLUcCKUpO/Nr/QsrllXLLVbNobUH5xAyhDI+SIxd/055kz 2XVa56goxs05iPxy1/DpK+/oWD4Ue0LuRNlO/6B6sitGveU3M5z//UicwTdNIDcu1mwj RN3OYmSO0Bagi4OYhI+drwgqO+sf8y0w0ZJwA= 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; b=M4kaUyFynvfYJ+f32JC9Frylc4sZz846BjsF2HODEN1TjlTUFQHN1zqExbLwy0x7JZ UZdw9DV0yvYkDbPrQE09waPjQu2uON9hN3MVkaEYR0ESYm9Itn6Xgw2FTgAVREQyECEc Sv/DzQPuxCd8NHRScPg//shLDU96FXFUqMj+4= _______________________________________________ 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: GDB versions.
by Jonas Maebe 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 27 Apr 2009, at 10:52, Pascal wrote: From: Jonas Maebe <jonas.maebe(a)elis.ugent.be> Jonas _______________________________________________ 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… Download the latest version from GDB CVS. It has support for Mac OS X/ x86 (both 32 and 64 bit; no PowerPC support though), although there are still some rough edges: * calling functions from within gdb will often crash, because gdb does not align the stack to 16 bytes before calling the function * when the debugged program finishes its execution, gdb crashes Those are the two issues I encountered, but other than that it already works fairly well (I'm not using it for debugging Ada though). You're right about PPC support with latest GDB (gdb-6.8.50.20090426) on my old iBook G4 with 10.4: configure: error: "*** Gdb does not support native target powerpc- apple-darwin8.11.0" Is there a way to modify GDB? Or what could a correct previous GDB release with PPC? There never has been any Darwin/ppc support in FSF's GDB. You would have to manually patch FSF GDB using code from Apple's fork to add Darwin/ppc support. This email sent to site_archiver(a)lists.apple.com

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Re: Determining architecture type at run time
by Steve Checkoway 27 Apr '09

27 Apr '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Apr 27, 2009, at 2:11 AM, rohan a wrote: -- Steve Checkoway "Anyone who says that the solution is to educate the users hasn't ever met an actual user." -- Bruce Schneier _______________________________________________ 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 I need to determine at program run time, the architecture type(x86, ppc or x86_64) of the Mac OS X machine. Is it possible to do this? Does Mac OS provide any API for this? Your code is compiled for a particular architecture. This is known at compile time. Why defer it to run time? smime.p7s

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