Re: Testsuite regression

["Peter.Schauer" <Peter dot Schauer at regent dot e-technik dot tu-muenchen dot de>]

I noticed this to, it is caused by:

2000-03-14  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

        * gdb.base/printcmds.c: Add typedeffed arrays.

which now puts a nonzero word after ctable2 in gdb.base/printcmds.c via
ArrayInt a1 = {2,4,6,8,10,12,14,16,18,20};

Previous versions had
int int1dim[12] = {0,1,2,3,4,5,6,7,8,9,10,11};
after ctable2, putting a zero word there.

So we now have a non zero byte after ctable2 (but only on little endian
targets).

p &ctable2[15*16]
asks GDB to print an unsigned char pointer and GDB puts out the contents
of the pointer as a string as well. As the string is no longer zero
terminated, GDB appends ellipsis.

It could be fixed by appending a zero byte to ctable2 (but I have tested
this only lightly):

*** gdb/testsuite/gdb.base/printcmds.c.orig	Wed Mar 22 19:08:22 2000
--- gdb/testsuite/gdb.base/printcmds.c	Sun Mar 26 21:34:20 2000
***************
*** 53,59 ****
    'a','a','a','a','a','a','a','a','a','a','a','a','a','X','X','X',
    'a','a','a','a','a','a','a','a','a','a','a','a','a','a','X','X',
    'a','a','a','a','a','a','a','a','a','a','a','a','a','a','a','X',
!   'a','a','a','a','a','a','a','a','a','a','a','a','a','a','a','a'
  };
  
  /* Single and multidimensional arrays to test access and printing of array
--- 53,59 ----
    'a','a','a','a','a','a','a','a','a','a','a','a','a','X','X','X',
    'a','a','a','a','a','a','a','a','a','a','a','a','a','a','X','X',
    'a','a','a','a','a','a','a','a','a','a','a','a','a','a','a','X',
!   'a','a','a','a','a','a','a','a','a','a','a','a','a','a','a','a', 0
  };
  
  /* Single and multidimensional arrays to test access and printing of array

> Hi all,
> 
> Somewhere between March 9 and March 15, the following failure appears:
> 
>   FAIL: gdb.base/printcmds.exp: p &ctable2[15*16] with print elements set to 16
> 
> This is the output from a run where the test still passed:
> 
>   p &ctable2[15*16]
>   $538 = (unsigned char *) 'a' <repeats 16 times>
> 
> And this the current output:
> 
>   p &ctable2[15*16]
>   $538 = (unsigned char *) 'a' <repeats 16 times>...
> 
> I'm a bit puzzled though what change is responsible for this
> regression.  Is there anybody else observing this failure?
> 
> Mark

-- 
Peter Schauer			pes@regent.e-technik.tu-muenchen.de