Re: [PATCH 1/2] [gdb/testsuite] Fix gdb.base/examine-address-class.exp for big endian

Hi Tom,

LGTM except for one typo in the commit log...

On Sun,  2 Aug 2026 11:34:20 +0200
Tom de Vries <[email protected]> wrote:

> On ppc64-linux and s390x-linux, with test-case
> gdb.base/examine-address-class.exp I get:
> ...
> (gdb) x/1dh (int *) &var^M
> 0x3fffffffe560: 0^M
> (gdb) FAIL: $exp: x/1dh (int *) &var
> ...
> 
> This is caused by big vs. little endian.
> 
> On x86_64-linux (little endian), we have:
> ...
> (gdb) p /x ((short *)&var)[0]
> $6 = 0x2a
> (gdb) p /x ((short *)&var)[1]
> $7 = 0x0
> (gdb)
> ...
> 
> And on ppc64-linux (big endian), we have:
> ...
> (gdb) p /x ((short *)&var)[0]
> $2 = 0x0
> (gdb) p /x ((short *)&var)[1]
> $3 = 0x2a
> ...
> 
> Fix this by assigning 0x002a0x002a to var, making sure that

There's a '0x' in the middle of that constant.  The code shows it
correctly as 0x002a002a.

> ((short *)&var)[0] == ((short *)&var)[1] == 42.
> 
> Tested on x86_64-linux, ppc64-linux and s390x-linux.
> ---
>  gdb/testsuite/gdb.base/examine-address-class.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/gdb/testsuite/gdb.base/examine-address-class.c b/gdb/testsuite/gdb.base/examine-address-class.c
> index c868b10119f..8f6b89c14bf 100644
> --- a/gdb/testsuite/gdb.base/examine-address-class.c
> +++ b/gdb/testsuite/gdb.base/examine-address-class.c
> @@ -18,6 +18,6 @@
>  int
>  main (void)
>  {
> -  int var = 42;
> +  int var = 0x002a002a;
>    return 0; /* break-here.  */
>  }
> -- 
> 2.51.0

With the typo fixed:

Approved-By: Kevin Buettner <[email protected]>