[libunwind] backtrace on EM64T

[Yeshurun, Meir]

Hi,

 

The GNU C backtrace() function is much slower on EM64T than it is on 32 bit platforms (about a 1000 times slower).

 

Is there a good reason for this slowness? Will an implementation of a backtrace function using the libunwind API also be much slower on EM64T?

 

Thanks a lot,

 

Meir