Re: Test cases and expecting failures

[Hans-Peter Nilsson <hp at bitrange dot com>]

On Thu, 26 Sep 2002, D.Venkatasubramanian, Noida wrote:
> Another observation I made was that, in gcc.c-torture directory,
> the test cases are unresolved by making a <test-case>.x file, but
>  such files weren't present in other directories. I found similar
> "Commands" formatted as comments in test cases itself in other
> directories. Any specific reason for this difference?

History, it seems; they're both different dejagnu-based
test-harnesses.  Read all of the dejagnu documentation and all
of the gcc *.exp files.

> For example in File : "gcc.dg/wint_t-1.c"
> /* { dg-excess-errors "Newlib has no wchar.h" { target mmix-knuth-mmixware
> cris-*-elf } } */
>
> I presume that to add some other target, say xxx-*-*,
> I would change this to,
>
> /* { dg-excess-errors "Newlib has no wchar.h" { target mmix-knuth-mmixware
> cris-*-elf xxx-*-* } } */
>
> Am I thinking correctly?

Well, yes, but rather than ask here, you should read the dejagnu
documentation and the documentation hidden in the comments
(gah!) in /usr/share/dejagnu/dg.exp (assuming dejagnu was built
with --prefix=/usr).

> And what if I only want this to happen if
> xxx-*-* is built with newlib.

Often the *-*-elf targets are built with newlib.  I guess it can
depend on the target.

brgds, H-P