Request for Review: improving Ubldr syscall linkage.

[Warner Losh]

On May 1, 2012, at 2:01 AM, Damjan Marion wrote:

> 
> On May 1, 2012, at 7:43 AM, Tim Kientzle wrote:
>> 
>> The only odd point:  The ARM reference I have lists blx
>> only for ARMv6 and ARMv7 instruction sets … or am I
>> misreading that somehow?
> 
> BX and BLX are supported since ARMv5 in ARM mode and since ARMv4 in THUMB mode so this will break some very old stuff like StrongARM which is ARMv4(non T).

Of the Atmel stuff, only the AT91RM9200 is ARM v4.  The rest is ARMv5.  I don't know that we support the callback to the bootloader for the Atmel port, but a lot of work went in for the AT91SAM stuff that might have snuck that kind of change in when I wasn't looking.

Warner