[PATCH v3 06/14] fix gdb.base/access-mem-running.exp for clang testing

[Andrew Burgess]

Bruno Larsen via Gdb-patches <gdb-patches@sourceware.org> writes:

> Clang was optimizing global_var away because it was not being used
> anywhere. this commit fixes that by adding the attribute used it.

LGTM.

Thanks,
Andrew

> ---
>
> No change in v3.
>
> No change in v2.
>
> ---
>  gdb/testsuite/gdb.base/access-mem-running.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gdb/testsuite/gdb.base/access-mem-running.c b/gdb/testsuite/gdb.base/access-mem-running.c
> index 6335f1bf199..cff6f0da820 100644
> --- a/gdb/testsuite/gdb.base/access-mem-running.c
> +++ b/gdb/testsuite/gdb.base/access-mem-running.c
> @@ -19,7 +19,7 @@
>  
>  static unsigned int global_counter = 1;
>  
> -static volatile unsigned int global_var = 123;
> +static volatile unsigned int __attribute__((used)) global_var = 123;
>  
>  static void
>  maybe_stop_here ()
> -- 
> 2.31.1