Re: [PATCH v17 3/4] tools/tests: introduce unit tests for domain ID allocator

[Anthony PERARD <anthony@xenproject.org>]

On Fri, Aug 29, 2025 at 04:21:31PM -0700, dmukhin@xen.org wrote:
> diff --git a/tools/tests/domid/Makefile b/tools/tests/domid/Makefile
> new file mode 100644
> index 000000000000..22f1f15d11db
> --- /dev/null
> +++ b/tools/tests/domid/Makefile
> +# NB: $1 cannot be a list

Why not? It would be the same as writing the rule multiple time for
different targets.

Is about my comment on "prerequisite" on v16? In this rule, "harness.h"
is a prerequisite.

> +define emit-harness-nested-rule
> +$(1): $(CURDIR)/harness.h
> +	mkdir -p $$(@D);
> +	ln -sf $$< $$@;
> +
> +endef
> diff --git a/tools/tests/domid/test-domid.c b/tools/tests/domid/test-domid.c
> new file mode 100644
> index 000000000000..5915c4699a5c
> --- /dev/null
> +++ b/tools/tests/domid/test-domid.c
> +
> +#include <sysexits.h>
> +
> +#include "harness.h"
> +
> +#define verify(exp, fmt, args...) \
> +while (!(exp)) { \
> +    printf(fmt, ## args); \
> +    exit(EX_SOFTWARE); \

We never used any of "EX_*" macro, or even <sysexits.h>. I'm not sure
it's a good idea to introduce such use where exit(1) would have been
more than enough but sysexits.h seems to be available on BSD so it's
probably fine. It would be nice to change that to exit(1) and remove
sysexits.h.

Anyway, patch looks good enough so:
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>

Thanks,

-- 
Anthony PERARD