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Re: Universal Binary?

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Re: Universal Binary?

Subject: Re: Universal Binary?
From: Shawn Erickson <email@hidden>
Date: Thu, 15 Dec 2005 07:39:55 -0800


On Dec 15, 2005, at 6:51 AM, 谢纲 wrote:

Hi all! The "Universal Binary Programming Guidelines, Second Edition" is mainly about how to write universal binary.But there is no information about the principle of universal binary,such as how the universal binary works,how to generate them.Is there any document about these?

There must't be two "-arch" parameters,such as "-arch ppc -arch i386"(generating universal binary),with gcc command "gcc -E".So I also want to know how and when the gcc generates the universal binary ? thks!


Review documents on this page...

<http://developer.apple.com/transition/index.html?ht>

...in particular...

<http://developer.apple.com/documentation/Porting/Conceptual/ PortingUnix/compiling/chapter_4_section_3.html#//apple_ref/doc/uid/ TP30001003-CH206-BAJCFEBA>

<http://developer.apple.com/documentation/DeveloperTools/Conceptual/ cross_development/index.html#//apple_ref/doc/uid/10000163i>

<http://developer.apple.com/documentation/DeveloperTools/gcc-4.0.1/ gcc/index.html>

etc.

-Shawn _______________________________________________
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  >Universal Binary? (From: "谢纲" <email@hidden>)




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