Issues/Efforts required for adding 64-bit Support
Issues/Efforts required for adding 64-bit Support
- Subject: Issues/Efforts required for adding 64-bit Support
- From: "rohit dhamija" <email@hidden>
- Date: Sat, 22 Apr 2006 17:02:15 +0530
Please guide me to correct mailing list incase I am putting the question on wrong one.
We are building a failry large product comprising of
Framework - device driver for communicating to usb bulk device
Static and dynamic libraries - communicating with the framework and user application
JNI's - communicating with the C libraries and JAVA Toolkit
Java toolkit - user interface
Need to support for
Mac OS 10.4 powerpc
Mac OS 10.4 Intel
and on hardware comprising for G4, G5 and Intel core duo
Currently, the application is developed as 32-bit but need to support for 64-bit too. I have some quries
regarding the same:
Q1) Currently, I have tested the app for G4 and Intel based mac's. Will the same application work the
same on G5 machine ? Or there may be some issues ?
Q2) Can the 32-bit application communicate with 64 bit applications directly (assuming the guidelines are followed as mentioned in
http://developer.apple.com/documentation/MacOSX/Conceptual/OSX_Technology_Overview/PortingTips/chapter_7_section_4.html#//apple_ref/doc/uid/TP40001067-CH214-TPXREF122 )
Q3) Do we need to ship different libraries and framework for 32 bit and 64 bit seperately ??
Q4) http://developer.apple.com/macosx/64bit.html says to change the architecture settings to ppc ppc64 in order to support 32 and 64-bit application. We are are building Universal binaries, Can universal binary support 64-bit application ?
Any pointers suggestions to support 32bit app to support 64-bit are most welcome
thanks and regards,
rdh
--
Rohit Dhamija(M) 9818446545
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