[okl4-developer] Iguana and BSS

[Geoffrey Lee]

On Wed, Jul 16, 2008 at 04:35:34PM +0200, Christian SCHWARZ wrote:
> Hi Geoffrey,
>

Hi Christian

> isn't this only true for applications installed into memory by the  
> bootloader ie known at compile time.
> Anything "later", especially applications loaded during runtime from NV  
> memory or via the internet, will have to be handled by the application  
> installer, ie Iguana or a dedicated app.
> In this case either the ELF library or (better?) the C library should  
> take care of this at initialization.
>
> Did I miss something?
>

In this case the application loader will have to ensure the .bss
section is zero'ed, however, in any case, it would be up to the 
application loader rather than the Iguana program to ensure
that the .bss is in fact zeroed.  The C library is not intended
to provide misc. services such as application loading, hence as such,
the binary loading library (ELF library if you are using ELF) should
be responsible for ensuring the .bss is zeroed, since you'd have
somehow parse and load the binary into memory anyway.


> //Christian

	-gl

>
> Geoffrey Lee wrote:
>> On Wed, Jul 16, 2008 at 03:26:15PM +0200, Guillaume PETITJEAN wrote:
>>> Is iguana zeroing the .bss section of the applications on top of it ?
>>
>> Hi Guillaume
>>
>> No, the Iguana program does not zero the bss.  The ELF bootloader
>> should do this.  Some broken bootloaders can't handle this properly.  In
>> this case specify zero_bss = True which modifies the ELF file
>> that should force the bss to be zero'ed when the binary is loaded.
>>
>> 	-gl
>>
>>
>>> Guillaume
>>>
>>>
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>>
>

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