Is it normal that ld promote a section size

Alan Modra amodra@gmail.com
Mon Feb 16 06:54:00 GMT 2015


On Mon, Feb 16, 2015 at 11:51:05AM +0800, Terry Guo wrote:
> It looks to me that the size of usb_qh is promoted from 0x300(768)
> bytes to 0x800(2048) bytes. The section .bss.UBS_EpStatus can prove
> this. IMHO this section should start from 0x2000f300 rather than
> 0x2000f800. This causes waste of space. Is this normal?

Have you looked at the relocatable object files?  I think it likely
you'll find your assembler is responsible for adding padding.  If gas,
see SUB_SEGMENT_ALIGN.

-- 
Alan Modra
Australia Development Lab, IBM



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