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

[Laurent Vivier]

Le 24/04/2023 à 17:34, Thomas Weißschuh a écrit :
> Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
> ---
>   linux-user/syscall.c | 26 ++++++++++++++++++++++++++
>   1 file changed, 26 insertions(+)
>
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 95e370130cee..140bd2c36e0f 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -9166,6 +9166,32 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int 
> num, abi_long arg1,
>               return ret;
>           }
>   #endif
> +#ifdef TARGET_NR_open_tree
> +    case TARGET_NR_open_tree:
> +        {
> +            void *p2;
> +
> +            if (!arg2) {
> +                return -TARGET_EFAULT;
> +            }
> +
> +            p2 = lock_user_string(arg2);
> +            if (!p2) {
> +                return -TARGET_EFAULT;
> +            }
> +
> +            int host_flags = arg3 & ~TARGET_O_CLOEXEC;
> +            if (arg3 & TARGET_O_CLOEXEC) {
> +                host_flags |= O_CLOEXEC;
> +            }
> +
> +            ret = get_errno(open_tree(arg1, p2, host_flags));
> +
> +            unlock_user(p2, arg2, 0);
> +
> +            return ret;
> +        }
> +#endif
>   #ifdef TARGET_NR_stime /* not on alpha */
>       case TARGET_NR_stime:
>           {

Applied to my linux-user-for-8.1 branch.
(moved the variable declaration to the beginning of the block)

Thanks,
Laurent