[arm-gnu] Placing variable at absolute address in RAM

[Mark Deneen]

If you pass "-defsym,dmavar=0x80007000", will ld preserve this space or is it possible for it to assign another symbol at that location?


-M


----- Original Message -----
Hi

> With the RealView ARM C Compiler, you may use either pointer definitions (as shown above) or __attribute__((at(address))) keyword to define a variable at a fixed memory address. In contrast to 

GCC was not designed for embedded :-)

> the pointer construct, the following definition also makes a correct 
> memory reservation, so that the area cannot be used twice.
> int var __attribute__((at(0x40001000)));

Yes, this is a missing feature. Feel free to add it to ld (sources are
available) ;-)

-- 
42Bastian
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