Debugging with gdb

[Ian Lance Taylor]

Russell Shaw <rjshaw@netspace.net.au> writes:

> Where do i set gdb in the gcc code so that i can step thru the generation
> of rtl output in a high-level kind of way?

RTL is generated in a high-level way in all kinds of places.  I don't
think there is any particularly good breakpoint to set.  For a
particular insn, you can sometimes break on gen_INSN, in this case
gen_movhi(), which is a generated function appearing in the generated
file insn-emit.c.

> Gdb can't find the function output_movhi in gcc/config/avr/avr.c. Do i need
> to dynamically load something?

No, there is no dynamic loading involved.  I don't know why gdb can't
find it.

Ian