RFR(M): 8020775: PPC64 (part 12): posix signal printing

[Lindenmaier, Goetz]

Hi Vladimir,

I updated the webrev:
http://cr.openjdk.java.net/~goetz/webrevs/8020775-print_sig-2/

> const char* os::Posix::describe_signal_set_short(const sigset_t* set, 
> char* buffer, size_t buf_size) {
I used your code.

> The code in the loop in describe_sa_flags() is incorrect because 
> strlen(p) gives size of all stored sa names. It should be 
> strlen(flaginfo[idx].s). I also don't see why it is while() loop and not 
> simple for().
No, the code is correct.  p points to the beginning of the recently
printed string.  Taking the size of p includes the '|' printed.
I changed it to a for loop.

>From your other mail:
> It would be nice if you can produce the same alignment in output:
> 
> SIGSEGV: [libjvm.so+0xc03f0d], sa_mask[0]=1, sa_flags=SA_RESTART|SA_SIGINFO

The alignment of the signals would have to be done in 
print_signal_handler(), which I did not change yet.
But this also looks like a candidate for moving to
the posix file.

Best regards,
  Goetz.