Question about readelf output from shared library built with lld, gold, and bfd linkers

[Nick Clifton]

Hi Tom,

>> I assume that you have compared started up times when linking with "-z now"
>> vs "-z lazy" ?
>>
> 
> I thought -z lazy was the default, and that if you wanted the equivalent of
> LD_BIND_NOW=1 on the command line, then one would use -z now.

It depends upon the environment.  In Fedora (and RHEL) "-z now" is the
default.  The reason is program security - lazy binding means that an
attacker might be able to alter the relocations before they are evaluated,
allowing all kinds of unexpected things to happen.

Cheers
   Nick