Re: [RFC][PATCH 09/16] objtool: Optimize find_symbol_*() and read_symbols()

[Josh Poimboeuf]

On Thu, Mar 12, 2020 at 02:41:16PM +0100, Peter Zijlstra wrote:
> All of:
> 
>   read_symbols(), find_symbol_by_offset(), find_symbol_containing(),
>   find_containing_func()
> 
> do a linear search of the symbols. Add an RB tree to make it go
> faster.
> 
> This about halves objtool runtime on vmlinux.o, from 34s to 18s.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>

This one also doesn't apply on latest tip.

I assume we also need to optimize the new find_func_by_offset().

-- 
Josh