Re: dyld 2 questions
Re: dyld 2 questions
- Subject: Re: dyld 2 questions
- From: "mm w" <email@hidden>
- Date: Sat, 8 Mar 2008 09:34:10 -0800
+ 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 <email@hidden> 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
>
--
-mmw
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