Re: x86_64 callgraph support

[Andi K. <an...@fi...>]

"Eric Klingelberger" <kli...@us...> writes:

> When running opreport with the -c option some symbols that I would expect to 
> see callers for do not appear in the call graph report.

Most likely these functions do not have frame pointers. oprofile
callgraph support does rely on frame pointers, but most binaries
and libraries on x86-64 do not use them.

The real fix would be to teach oprofile to use the dwarf2 unwind
information that is in most x86-64 binaries, but that code is 
not there.

-Andi

-- 
ak...@li... -- Speaking for myself only.