show size of stack needed by functions

[Ian Lance Taylor]

Sebastian <sebastianspublicaddress@googlemail.com> writes:

> can gcc show the size of the stackframe of functions, so you can, given
> a callgraph without cycles, calculate the worst case stack size?
>
> (Assuming no use of alloca or C99 variable size arrays)
>
> Can gcc (or ld) dump a callgraph?

The mailing list gcc@gcc.gnu.org is for the development of gcc itself.
This question would be more appropriate for the mailing list
gcc-help@gcc.gnu.org.  Please take any followups to gcc-help.  Thanks.

See the -fstack-usage option.

gcc can not dump a callgraph.  Both GNU ld and gold can dump a
cross-reference table, which is not a call graph but could perhaps be
used to produce a call graph.  See the --cref option.

Ian