[U-Boot] [PATCH] nios2: fix r15 issue for gcc4

[Thomas Chou <thomas@wytron.com.tw>]

Mike Frysinger wrote:
> On Friday 14 May 2010 18:00:04 Thomas Chou wrote:
>> The "-ffixed-r15" option doesn't work well for gcc4. Since we
>> don't use gp for small data with option "-G0", we can use gp
>> as global data pointer. This allows compiler to use r15. It
>> is necessary for gcc4 to work properly.
>>
>> Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
>> ---
>>  arch/nios2/config.mk                 |    2 +-
>>  arch/nios2/cpu/start.S               |    7 -------
>>  arch/nios2/include/asm/global_data.h |    2 +-
>>  3 files changed, 2 insertions(+), 9 deletions(-)
> 
> i think you also need to update examples/standalone/stubs.c
> 
> maybe also document things in README and doc/README.standalone ?
> -mike

Dear Mike,

Thank you very mcuh.

The nios2 gd usage was not documented. I will add it to README and 
doc/README.standalone. I will update examples/standalone/stubs.c, too.

Best regards,
Thomas