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At 06:01 PM 2/28/2003, Matt Thomas wrote:
>Currently, ld.elf_so doesn't honor the alignment specified in a
>ELF file's psections.  This is due to the lack of ability to request
>an aligned block of addresses from mmap(2).  I propose we add a
>MAP_ALIGNED flag which would mean that the addr argument to mmap(2)
>would be the required alignment of the block.  Supplying both
>MAP_ALIGNED|MAP_FIXED would cause an error EINVAL to be returned.
>
>Any thought on this proposal?

Taking Andrew Brown's idea, I stole the top 8 bit of the flags argument
to mmap(2) to inside a log2 value of alignment desired.  The attach
patch implements the proposal and (after a few bugs in uvm) works fine.


-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Cupertino, CA             Disclaimer: I avow all knowledge of this message
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