Testsuite hosted :-(

[H . J . Lu]

I don't see how anyone can pass stdio-common/tfformat. The test which
causes the problem is 

	{__LINE__, 16,                        "0x1.0p+4", "%.1a"}


In sysdeps/generic/printf_fphex.c around line 301, there are

      /* Fill with zeroes.  */
      while (wnumstr > wnumbuf + (sizeof wnumbuf - 52 / 4))
        {
          *--wnumstr = L'0'; 
          *--numstr = '0';
        }

I cannot figure out what it is trying to do. In that case, after

          wnumstr = _itowa (num, wnumbuf + sizeof wnumbuf, 16,
                            info->spec == 'A');

size of wnumbuf is 128
wnumstr is (wchar_t *) 0xbfffed1c
wnumbuf is (wchar_t *) 0xbfffeb20
wnumstr is &wnumbuf[127]

          *--wnumstr = L'0'; 

will overwrite some memory on stack, which leads to the problem.


H.J.