From: kirjanov@gmail.com (Denis Kirjanov)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to identity processor architecture
Date: Thu, 27 Jan 2011 23:01:19 +0300 [thread overview]
Message-ID: <AANLkTik7HMrpAdMLCGQJBytTrp42EtO4kOpc-sP9JUtx@mail.gmail.com> (raw)
In-Reply-To: <201101280057.15611.mindentropy@gmail.com>
On Thu, Jan 27, 2011 at 10:27 PM, mindentropy <mindentropy@gmail.com> wrote:
> On Thursday 27 Jan 2011 12:15:47 pm Mulyadi Santosa wrote:
>> On Thu, Jan 27, 2011 at 13:40, prabhu <prabhum@msys-tech.com> wrote:
>> > No, because 32bit code will tell the datatype size and i think pointer
>> > variable depends on architecture.
>> > So 64 bit processor needs 64 address line to point the data location. So
>> > pointer variable needs to be 8 byte.
>>
>> Please don't top post and please use the new list address, ok? :)
>>
>> IMO, I second your opinion. And as addition, I think it's worth to
>> check /proc/cpuinfo too ?in "address sizes" field
>>
>> NB: I was thinking, if in x64, it is operating in full 32 bit mode
>> (not hybrid one), it is supposed to yield 32 bit address too, right?
> Why not simply use CPUID ?
In this case solution is not portable and uses arch specific methods.
I think most 64-bit systems today use LP64 data model.
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--
Regards,
Denis
next prev parent reply other threads:[~2011-01-27 20:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 6:07 How to identity processor architecture prabhu
2011-01-27 6:26 ` Enrico Granata
2011-01-27 6:31 ` arun kumar
2011-01-27 6:40 ` prabhu
2011-01-27 6:45 ` Mulyadi Santosa
2011-01-27 6:54 ` Enrico Granata
2011-01-27 7:15 ` dharmvir kumar
2011-01-27 7:24 ` Mandeep Sandhu
2011-01-27 8:20 ` prabhu
2011-01-27 8:22 ` Enrico Granata
2011-01-27 9:53 ` prabhu
2011-01-27 11:15 ` Henry Gebhardt
2011-01-27 11:32 ` Thirugnanam Balamurugan
2011-01-27 11:44 ` Pravin Shedage
2011-01-27 12:33 ` prabhu
2011-01-27 9:23 ` Busybox for powerpc doesnt compile Giriprasad Deviprasad
2011-01-27 10:11 ` yy Hong
2011-01-27 13:47 ` Anuz Pratap Singh Tomar
2011-01-29 5:50 ` Giriprasad Deviprasad
2011-01-30 13:23 ` Giriprasad Deviprasad
2011-01-27 7:07 ` How to identity processor architecture prabhu
2011-01-27 7:13 ` Mulyadi Santosa
2011-01-27 19:27 ` mindentropy
2011-01-27 20:01 ` Denis Kirjanov [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-01-27 3:28 Added about new kernel on old distro (was Re: most likely, i'll be giving a kernel talk at ottawa LUG next week) Mulyadi Santosa
2011-01-27 6:09 ` How to identity processor architecture prabhu
2011-01-26 18:08 most likely, i'll be giving a kernel talk at ottawa LUG next week Robert P. J. Day
2011-01-27 6:17 ` How to identity processor architecture prabhu
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