[Openmcl-devel] universal binaries

Alexander Repenning ralex at cs.colorado.edu
Fri Apr 17 03:54:11 UTC 2009


Terje's approach with the shell script may work but I would not like  
the idea of the finder not recognizing the universal binary as such.

We are only using the IDE versions of CCL with the large, merged  
kernel + heap "d<architecture>cl" files. Could the Cocoa/IDE version   
be lipoed together given that there would not be the problem with  
finding the right image file? If so, what would be the proper way to  
use lipo to achieve this?

alex


On Apr 16, 2009, at 3:09 PM, Gary Byers wrote:

> There has never been any support for universal binaries in CCL.
>
> Merging multiple kernels into a single executable file is trivial  
> (well,
> it's trivial since we can just invoke the 'lipo' program to do all of
> the non-trivial work.)
>
> There isn't currently any support for multi-architecture heap images,
> so it's not clear how a universal binary kernel could find and load
> the right architecture-specific heap image by default.
>
> For a long time, I've been under the impression that the file named by
> the value of the CFBundleExecutable key in a .app bundle' Info.plist
> had to be a real executable file.  If it can in fact be a shell
> script, then that shell script could just determine the architecture
> and execute the right architecure-specific binary (which could either
> contain an embedded heap image, load a default heap image based on its
> name, or receive an argument from that shell script.)
>
> (It does seems to work to set the CFBundleExecutable key's value to
> the name of a shell script, and that shell script can determine the
> architecture and word size and exec a real executable file.  That  
> isn't
> quite the same thing as a Universal Binary - "Get Info" wouldn't  
> recognize
> it as one - but it'd have much the same effect.)
>
>
> On Thu, 16 Apr 2009, Alexander Repenning wrote:
>
>> is there a tool/script/document helping with the process of merging  
>> the PPC with the Intel-Mac binary version(s) into a single app? If  
>> I remember right CCL 1.2 did have such a universal binary. Would it  
>> be possible to squeeze 64bit and 32 bit intel-macs versions  
>> together with a ppc binary into a single app?
>>
>> alex
>>
>> Prof. Alexander Repenning
>>
>> University of Colorado
>> Computer Science Department
>> Boulder, CO 80309-430
>>
>> vCard: http://www.cs.colorado.edu/~ralex/AlexanderRepenning.vcf
>>
>>
>

Prof. Alexander Repenning

University of Colorado
Computer Science Department
Boulder, CO 80309-430

vCard: http://www.cs.colorado.edu/~ralex/AlexanderRepenning.vcf


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