site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=8rxiqFZbF+uT6l5DrVvf0vUZv9/m9+HIYzm7LNluX3w=; b=KKZGXzjoSfjMYqTpsg8lDKC+dQjY0MD38kLlRzOQS1/Da2eMLzfCXTGddfvG/6tckN2PfQSvodJgLuCmNBGXCz9vjAotGnNs8Wof4l6jUW39qDS1BkTDEo0Y29Cr+0AVY0JYyXOHZZj0PVLa4nLYs+3A0DRURsEIQo0Y2lxpY88= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=M/tL4Mo8tfm27P/mk5VQDpVxqRJz+6NBsDz1tsG36yAR5+m93C45dCXTevbQgPiYUpno5/H/IgWMR6q7fSrTPVcMwerxdggBU1xs34vXn5n6Tvr0JVvioLNt3bakyIUA4VIj94re/hdxVGpbleHKPtormm2f+0ObSgvEi1RENiE= + the question was not related to an app + i discovered nothing it was just a simple example to illustrate an empiric way I do not know if you tried to use humour, but very bad Thank you On Fri, Mar 7, 2008 at 10:24 PM, Terry Lambert <tlambert@apple.com> wrote:
On Mar 7, 2008, at 5:06 PM, mm w wrote:
#include <stdio.h>
/* cc -ansi -Wall -O3 -arch i386 -DARCH_X86_64=0 main.c -o main-i386 cc -ansi -Wall -O2 -arch x86_64 -DARCH_X86_64=1 main.c -o main-x86_64 lipo -create -arch i386 main-i386 -arch x86_64 main-x86_64 -o main */
/* main.c */
int main(void) { #if ARCH_X86_64 puts("hello world 64!"); #else puts("hello world!"); #endif return 0; } /* EOF */
$ ./main-i386 hello world! $ ./main-x86_64 hello world 64! $ ./main hello world 64!
1 - is there a way to know which arch/img has been loaded?
ps or activity monitor or, as you have discovered, printf.
2 - is it possible to force one arch to be loaded rather than the default one?
Check the checkbox in finder, if it's a GUI application, or:
man arch
-- Terry
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mm w