Re: gcc on darwin os-x

Re: gcc on darwin os-x

[Dara Hazeghi]

Hello,

a vm_alloc error is a C library error, something gcc
has no control over (it's Apple's C library). But I
think G5s top out at 8 gigabytes RAM or so, and the
amount you're asking to allocate is a lot more than
that!

Cheers,

Dara

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Re: gcc on darwin os-x

[Syd Polk]

On Nov 8, 2003, at 3:03 AM, Dara Hazeghi wrote:

> Hello,
>
> a vm_alloc error is a C library error, something gcc
> has no control over (it's Apple's C library). But I
> think G5s top out at 8 gigabytes RAM or so, and the
> amount you're asking to allocate is a lot more than
> that!
>

It's worse than that; right now, an individual process is limited to 32 
bit pointers, so it can only allocate 2 GB.

-- Syd Polk
jazzman@bayarea.net                 http://www.baritoneconsulting.com/
"Let the music be your light." -- Dave Edwards, KUHF-FM, 1982

Re: gcc on darwin os-x

[Dara Hazeghi]

--- Syd Polk <spolk@apple.com> wrote:
> 
> 
> It's worse than that; right now, an individual
> process is limited to 32 
> bit pointers, so it can only allocate 2 GB.

Really? I could have sworn I'd read something to the
contrary elsewhere. So -mpowerpc64 only affects long
long on g5, not void *, or anything else? Thanks,

Dara

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Re: gcc on darwin os-x

[Syd Polk]

On Nov 8, 2003, at 10:49 AM, Dara Hazeghi wrote:

>
> --- Syd Polk <spolk@apple.com> wrote:
>>
>>
>> It's worse than that; right now, an individual
>> process is limited to 32
>> bit pointers, so it can only allocate 2 GB.
>
> Really? I could have sworn I'd read something to the
> contrary elsewhere. So -mpowerpc64 only affects long
> long on g5, not void *, or anything else? Thanks,
>
> Dara
>

That is correct.

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-- Syd Polk
jazzman@bayarea.net                 http://www.baritoneconsulting.com/
"Let the music be your light." -- Dave Edwards, KUHF-FM, 1982

Re: gcc on darwin os-x

[Claudio Bley]

On Tue, Nov 04, 2003 at 07:21:23PM -0500, Nick Strauss wrote:
> Hi, 

Hello.
 
> I'm trying to use g++ in darwin os-x running on a g5 system with  
> a powerPC 970 chip.  
> I've written the following piece of code:  
> 
> 	unsigned long long alloc = 1LL<<41; 
> 
> 	ptr = new char[alloc]; 
> 
> I get a vm_alloc error.  
> Is the g++ limited to a 32-bit address space on darwin os-x on g5? 

Frankly, I don't know. But to me it seems you're trying to allocate an
array which needs 2 TB of memory. Do you really have that much memory?
In that case, these G5 boxes must be a lot better than I thought.

Regards.
-- 
Claudio Bley                                 ASCII ribbon campaign (")
Debian GNU/Linux user                         - against HTML email  X 
http://www.cs.uni-magdeburg.de/~bley/                     & vCards / \

gcc on darwin os-x

[Nick Strauss]

[-- Attachment #1: Type: text/plain, Size: 327 bytes --]

Hi,

I'm trying to use g++ in darwin os-x running on a g5 system with
a powerPC 970 chip.
I've written the following piece of code:

	unsigned long long alloc = 1LL<<41;

	ptr = new char[alloc];

I get a vm_alloc error.
Is the g++ limited to a 32-bit address space on darwin os-x on g5?

Nicholas Strauss
infinitysw@comcast.net

[-- Attachment #2: Type: text/enriched, Size: 421 bytes --]

Hi,


<fontfamily><param>Times</param><bigger><bigger>I'm trying to use g++
in darwin os-x running on a g5 system with 

a powerPC 970 chip. 

I've written the following piece of code: 


	unsigned long long alloc = 1LL<<<<41;


	ptr = new char[alloc];


I get a vm_alloc error. 

Is the g++ limited to a 32-bit address space on darwin os-x on g5?


Nicholas Strauss

infinitysw@comcast.net</bigger></bigger></fontfamily>