How to write elf file to a certain address?

<div class='quotetop'>QUOTE (mschnell @ Jul 19 2009, 07:04 AM) <{post_snapback}> (index.php?act=findpost&pid=23197)</div>

--- Quote Start ---

<div class='quotetop'>QUOTE (babysnow @ Jul 19 2009, 12:49 PM) <{post_snapback}> (index.php?act=findpost&pid=23196)

--- Quote End ---

--- Quote Start ---

any reference? or suggestions?[/b]

--- Quote End ---

Do you already use the upcoming MMU-enabled "full" version of Linux on NIOS (right now available only from WindRiver) ? Otherwise elf format is not supported anyway, but "flat" is used.

AFAIK, elf format does use a fixed (virtual) load address for the executable, which is assigned to a physical address by the MMU hardware. Without an MMU, the flat format allows for relocating the executable onto a free address area while loading it into memory. The load address can&#39;t be fixed, as of course this address might not be free when loading the executable, This this does not seem to make sense.

-Michael

[/b]

--- Quote End ---

Thank you for your reply!

I am confused. &#956;Clinux system is without MMU, How can I add MMU to the project?

What about some system-basic level methods? Such as use the function IOWR,IORD of fwrite(),fread() series?