Discarding linker output

daviddavid92 · ‎2010-06-15

Posted on June 15, 2010 at 13:40

picguy2 · ‎2011-05-17

Posted on May 17, 2011 at 13:54

The addresses are fixed. Include a file with the addresses as #define or equ. Linker knows nothing about the use or non use of your high flash addresses.

Tesla DeLorean · ‎2011-05-17

Posted on May 17, 2011 at 13:54

Problem is GCC is not a native embedded tool chain.

With the RealView linker it is possible to provide a SYMDEF symbol definition file (.DEF) with the entry points for ROM based subroutines, and addresses for constants/tables.

http://www.keil.com/support/man/docs/armlink/armlink_cchgjjac.htm

http://www.keil.com/support/man/docs/armlink/armlink_chddhjig.htm

I might reasonable guess that one could also create an object file (.OBJ) or library (.LIB) containing ABSOLUTE addresses associated with specific symbols, and then link against that.

Edit:

This thread seems to be on point

http://gcc.gnu.org/ml/gcc-help/2006-08/msg00295.html

Looks like you can either create a .S file, or add them to the linker script.

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