[mc1322x] linking in math libraries?

[Andrew Pullin]

On 4/9/2010 5:48 AM, Jon Smirl wrote:
> On Fri, Apr 9, 2010 at 6:04 AM, Andrew Pullin<pullin at berkeley.edu>  wrote:
>    
>> On 4/8/2010 7:49 AM, Mariano Alvira wrote:
>>      
>>> On Thu, Apr 08, 2010 at 10:22:40AM -0400, Jon Smirl wrote:
>>>
>>>        
>>>> Now you get to sort through and figure out what went wrong.
>>>>
>>>> It may be bring in floating point emulation because of printf. There's
>>>> an option somewhere to stop that.
>>>>
>>>>          
>>> eh. I find it's easier to fix it when glibc blows up.
>>>
>>> If think there is enough info is this thread to get someone started
>>> with newlib if they are really gung-ho about it.
>>>
>>> And also, wasn't the whole point of this to bring in floating point
>>> emulation? (e.g. sqrt())? So even under that case, glibc is still half
>>> the size.
>>>
>>> -Mar.
>>>
>>>
>>>
>>>        
>> Well, this sort of works for newlib:
>> http://andrewpullin.org/tools/arm/buildscript.sh
>>
>> It works in the sense that it builds, and prints a lot of libraries when
>> doing arm-elf-gcc -print-multi-lib , but the build still complains that the
>> library is build without interworking and with software FP. If anyone's got
>>      
> Set the compiler flags to turn on interworking when building newlib.
>
>    
I thought that enabling multilibs and having arm-elf-gcc 
-print-multi-lib show:
thumb;@mthumb
interwork;@mthumb-interwork
thumb/interwork;@mthumb at mthumb-interwork
thumb/be/interwork;@mthumb at mbig-endian@mthumb-interwork

Meant that it built all it's libraries with the -m-thumb-interwork 
enabled? Maybe not. If not, is that an option I set through the 
configure scripts for one of the pacakges?

>> a stroke of genius about how to make it work, I'd be very interested to
>> hear...
>>      
> Keep playing with it. You have the source to everything so it is
> possible to find a solution.
>
> I have an email somewhere for a consultant that specializes in build
> environments if you're interested.
>
>    
Ah, I would be very interested to see that email if it contains useful 
instructions.


>> -Andrew
>>
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>>      
>
>