Re: 64-bit Mac OS X kernel
Re: 64-bit Mac OS X kernel
- Subject: Re: 64-bit Mac OS X kernel
- From: Jean-Daniel Dupas <email@hidden>
- Date: Wed, 19 Aug 2009 12:40:03 +0200
There is no such thing than 32 bit Mac OS X and 64 bit Mac OS X.
The kernel can execute 32 bit and 64 bit application whatever its
architecture is.
A 64 bit applications run in a "64 bit" address space and uses the 64
bit ABI whatever the kernel arch is.
Le 19 août 2009 à 12:25, rohan a a écrit :
I was mainly asking this from an application testing perspective.
Hence, wanted to know whether there are different installation images
available for 32-bit and 64-bit OS.
On Wed, Aug 19, 2009 at 3:46 PM, rohan a<email@hidden> wrote:
Thanks for this.
However, why then are there 4 binary types :
x86, x86_64, ppc32 and ppc64 when the kernel itself is a 32-bit.
Will it be able to take advantage of the other 32-bits ?
On Wed, Aug 19, 2009 at 3:30 PM, Jean-Daniel
Dupas<email@hidden> wrote:
Le 19 août 2009 à 11:53, rohan a a écrit :
Hi All,
Does Mac OS X 10.5 provide separate 32-bit and 64-bit kernels
?Or there is only one type of kernel supported.
What I mean is that like Windows has separate version x86,
x86_64, IA
is there something like this for Mac OS X 10.5 as well ?
If not are there only 2 version:
Intel i386 and PowerPC ?
and does the same thing run on 32-bit and 64-bit hardware ?
Most (if not all) of the answers are in the 64 bit Transition
Guide and in
The Universal Binary programming Guide.
http://developer.apple.com/documentation/Darwin/Conceptual/64bitPorting/intro/intro.html
http://developer.apple.com/documentation/MacOSX/Conceptual/universal_binary/universal_binary_intro/universal_binary_intro.html
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