[linuxsh-dev] Re: Floating point problem

[kaz K. <kk...@rr...>]

"Bao C. Ha" <ba...@se...> wrote:
> -static works
> -O2 does not work (crash!)
> 
> Following is a gdb session when it crashes.  Note the
> "correct" values of dum = -0.95105654 and status = 1!
> 
> Breakpoint 1, main () at test.c:13
> 13              status = fscanf(fptr,"%f", &dum);
> (gdb) n
> 14              printf("\n status=%x\n", (int)status);
> (gdb) print dum
> $3 = -0.95105654
> (gdb) print status
> $4 = 1

Can you please check the result of the following gdb commands at this
point?

  (gdb) set archi sh4
  (gdb) p/x $fpscr

If you don't get 0x8xxxx as the value of fpscr register, the cause of
the crash will be the wrong mode of FPU.

	kaz