[U-Boot-Users] reading ethaddr from env
wd at denx.de
Thu Feb 24 23:49:50 CET 2005
In message <20050223100142.GA3003 at nabla101> you wrote:
> When u-boot starts and try to read the ethaddr, (lib_arm/board.c at 296),
> the parameter tmp used in the function getenv_r is pointing to the gd->bd
> structure, so the execution of this function corrupts the data stored in
You are wrong. "tmp" is a local array, declared in line 294:
294 uchar tmp;
296 i = getenv_r ("ethaddr", tmp, sizeof (tmp));
> I've found a "dirty" workaround of this problem rising the size of tmp
What exactly is your problem?
> /* uchar tmp; */
> uchar tmp;
> i = getenv_r ("ethaddr", tmp, sizeof (tmp));
Why do you think that 64 bytes should be insufficient to store the
> As you can see the tmp buffer is pointing to the gd->bd plus 4.
At least this is what the debugger claims.
> Any hints ?
I cannot reproduce this problem here. WHat do you get when you use
printf() to display the addresses _before_ calling getenv_r()?
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