Fix select decoding on e.g. 32-bit ppc process by 64-bit strace.

Added next_set_bit() function which finds the next set bit,
properly taking into account word size of the traced process.
Use it in decode_select() instead of fd_isset().
Also, properly round fdsize up to word size of traced process,
not to strace's word size.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
3 files changed