Re: dyld 2 questions
Re: dyld 2 questions
- Subject: Re: dyld 2 questions
- From: "mm w" <email@hidden>
- Date: Sat, 8 Mar 2008 10:56:30 -0800
sorry guys it's not my question
On Sat, Mar 8, 2008 at 10:51 AM, Andreas Fink <email@hidden> wrote:
>
> On 08.03.2008, at 18:22, mm w wrote:
>
> > hi Terry it's really not that I'm asked,
> >
> > I reiterate my question, is it possible to get which arch of a fat
> > binary has been loaded?
> > is it possible (in the case of a fat binary) to force one arch to be
>
> > loaded rather than the default one?
>
> - use lipo to remove all arch's you dont want to use.
> - use get-info in finder to run in rosetta (forcing it to run as ppc
> (is ppc64 supported in rosetta? I don't think so)
>
> As it was already said, the Activity Monitor application tells you
> which architecture an application was loaded.
> And of course ifdef's in the source will tell you as well as the
> source (after being run through preprocessor) will be different for
> every arch.
>
>
>
>
> >
>
> >
> >
> > 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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>
--
-mmw
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