RFC: Add -z text-start-addr=ADDR to ELF linker

[Weddington, Eric]

> -----Original Message-----
> From: Ian Lance Taylor [mailto:iant@google.com] 
> Sent: Tuesday, January 13, 2009 8:52 PM
> To: H.J. Lu
> Cc: binutils@sourceware.org
> Subject: Re: RFC: Add -z text-start-addr=ADDR to ELF linker
> 
> > Some applications may depend the current behaviour as shown
> > in linker testcases.
> 
> I am very skeptical that any real ELF code uses -Ttext without also
> using a custom linker script.
> 

AVR target. Relocate the application code to a different address for a bootloader application (needs to start at a specific high address). No need to use a custom linker script because -Ttext works for us.