Re: VMA vs LMA?

On Aug 29, 7:19 am, David Brown <da...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
wrote:

ROM'ed program, where the program is run directly from the ROM rather
than being first copied into RAM (in which case you have the same
situation as an OS and a file), the code at the beginning of the program
copies the data across and also clears the bss - this is part of the

The other place where it's common to see VMA != LMA (and code that
cares about the difference) is when initializing the MMU. You may have
code that's physically contiguous across a block of LMAs, but the
first few bytes set up the MMU and execution then passes to a new VMA.

.

Relevant Pages

  • Re: VMA vs LMA?
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  • Re: VMA vs LMA?
    ... What is the difference between VMA (Virtual Memory Address) and LMA ... or load memory address. ...
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  • VMA vs LMA?
    ... What is the difference between VMA (Virtual Memory Address) and LMA ... or load memory address. ...
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  • Re: VMA vs LMA?
    ... When writing a program where one wants different LMA and VMA sections ... Why does crt0 have code that copies data from LMA to ...
    (comp.arch.embedded)
  • Re: [PATCH 1/2] Report the pagesize backing a VMA in /proc/pid/smaps
    ... this doesn't return the MMU pagesize backing the VMA. ... returns pagesize that hugetlb reports *or* the kernel's base PAGE_SIZE. ...
    (Linux-Kernel)