Re: [Xen-devel] [PATCH v8.1 14/27] xsplice, symbols: Implement symbol name resolution on address.

[Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>]

On 04/19/2016 08:31 PM, Jan Beulich wrote:
snip
> > +    ASSERT(spin_is_locked(&payload_lock));
> > +    list_for_each_entry ( data, &payload_list, list )
> > +    {
> > +        unsigned int i;
> > +
> > +        for ( i = 0; i < data->nsyms; i++ )
> > +        {
> > +            if ( !data->symtab[i].new_symbol )
> > +                continue;
> Do you need symbols other than those marked "new_symbol" past the loading
> of the module? If not, wouldn't it be worthwhile to shrink the symbol table to 
> just
> those, likely speeding up the lookup?
new_symbol indicates whether it is newly introduced in this binary patch 
or whether it overrides a symbol in a previous binary patch (or the core 
binary). Either way, the symbol will be used when resolving a backtrace.

--
Ross Lagerwall

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