Re: [PATCH 07/14] add basic vm tests

[Samuel Thibault]

Luca Dariz, le jeu. 28 déc. 2023 20:42:54 +0100, a ecrit:
> +  // this emulates maptime()
> +  struct mapped_time_value *mtime;
> +  mach_port_t device, memobj;
> +  int err = device_open (device_priv(), 0, "time", &device);
> +  ASSERT_RET(err, "device_open");
> +  err = device_map (device, VM_PROT_READ, 0, sizeof(*mtime), &memobj, 0);
> +  ASSERT_RET(err, "device_map");
> +  err = mach_port_deallocate (mach_task_self (), device);
> +  ASSERT_RET(err, "mach_port_deallocate");
> +  mtime = 0;
> +  err =
> +    vm_map (mach_task_self (), (vm_address_t *)&mtime, sizeof *mtime, 0, 1,
> +            memobj, 0, 0, VM_PROT_READ, VM_PROT_READ, VM_INHERIT_NONE);
> +  ASSERT_RET(err, "vm_map");
> +  err = mach_port_deallocate (mach_task_self (), memobj);
> +  ASSERT_RET(err, "mach_port_deallocate");

I'd say try to print the content, so as to check that this did return a
pointer that is readable?

> +  err = vm_deallocate(mach_task_self(), (vm_address_t)mtime, sizeof(*mtime));
> +  ASSERT_RET(err, "vm_deallocate");
> +}