When is .ARM.exidx is used

Question

I am working on Contiki 2.7 with the mbxxx target. While building my code the linker complained about an overlap of .ARM.exidx and .data sections. After som

Answer 1

Adding to tangrs' response, if you gcc -v, you can dump the default options used during compilation.

All options (implicit & explicit) options of GCC are passed to cc1 program of GCC.