[PATCH v7 8/9] selftests/pidfd: add PIDFD_INFO_COREDUMP infrastructure

[Alexander Mikhalitsyn]

Am Do., 15. Mai 2025 um 00:04 Uhr schrieb Christian Brauner
<brauner at kernel.org>:
>
> Add PIDFD_INFO_COREDUMP infrastructure so we can use it in tests.
>
> Signed-off-by: Christian Brauner <brauner at kernel.org>

Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn at canonical.com>

> ---
>  tools/testing/selftests/pidfd/pidfd.h | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h
> index 55bcf81a2b9a..887c74007086 100644
> --- a/tools/testing/selftests/pidfd/pidfd.h
> +++ b/tools/testing/selftests/pidfd/pidfd.h
> @@ -131,6 +131,26 @@
>  #define PIDFD_INFO_EXIT                        (1UL << 3) /* Always returned if available, even if not requested */
>  #endif
>
> +#ifndef PIDFD_INFO_COREDUMP
> +#define PIDFD_INFO_COREDUMP    (1UL << 4)
> +#endif
> +
> +#ifndef PIDFD_COREDUMPED
> +#define PIDFD_COREDUMPED       (1U << 0) /* Did crash and... */
> +#endif
> +
> +#ifndef PIDFD_COREDUMP_SKIP
> +#define PIDFD_COREDUMP_SKIP    (1U << 1) /* coredumping generation was skipped. */
> +#endif
> +
> +#ifndef PIDFD_COREDUMP_USER
> +#define PIDFD_COREDUMP_USER    (1U << 2) /* coredump was done as the user. */
> +#endif
> +
> +#ifndef PIDFD_COREDUMP_ROOT
> +#define PIDFD_COREDUMP_ROOT    (1U << 3) /* coredump was done as root. */
> +#endif
> +
>  #ifndef PIDFD_THREAD
>  #define PIDFD_THREAD O_EXCL
>  #endif
> @@ -150,6 +170,9 @@ struct pidfd_info {
>         __u32 fsuid;
>         __u32 fsgid;
>         __s32 exit_code;
> +       __u32 coredump_mask;
> +       __u32 __spare1;
> +       __u64 coredump_cookie;
>  };
>
>  /*
>
> --
> 2.47.2
>