Re: [PATCH 1/2] linux-user: Add move_mount() syscall

[Laurent Vivier <laurent@vivier.eu>]

Le 24/04/2023 à 17:34, Thomas Weißschuh a écrit :
> Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
> ---
>   linux-user/syscall.c | 27 +++++++++++++++++++++++++++
>   1 file changed, 27 insertions(+)
> 
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 69f740ff98c8..95e370130cee 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -9139,6 +9139,33 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1,
>           unlock_user(p, arg1, 0);
>           return ret;
>   #endif
> +#ifdef TARGET_NR_move_mount
> +    case TARGET_NR_move_mount:
> +        {
> +            void *p2, *p4;
> +
> +            if (!arg2 || !arg4) {
> +                return -TARGET_EFAULT;
> +            }
> +
> +            p2 = lock_user_string(arg2);
> +            if (!p2) {
> +                return -TARGET_EFAULT;
> +            }
> +
> +            p4 = lock_user_string(arg4);
> +            if (!p4) {
> +                unlock_user(p2, arg2, 0);
> +                return -TARGET_EFAULT;
> +            }
> +            ret = get_errno(move_mount(arg1, p2, arg3, p4, arg5));
> +
> +            unlock_user(p2, arg2, 0);
> +            unlock_user(p4, arg4, 0);
> +
> +            return ret;
> +        }
> +#endif
>   #ifdef TARGET_NR_stime /* not on alpha */
>       case TARGET_NR_stime:
>           {
> 
> base-commit: 81072abf1575b11226b3779af76dc71dfa85ee5d

Applied to my linux-user-for-8.1 branch.

Thanks,
Laurent