Re: [Qemu-devel] [EXTERNAL][PATCH for 4.2 v4 12/12] linux-user: Add support for semtimedop() syscall

[Laurent Vivier]

Le 31/07/2019 à 20:22, Aleksandar Markovic a écrit :
>> From: Aleksandar Rikalo <address@hidden>
>>
>> Add support for semtimedop() emulation. It is based on invocation
>> of safe_semtimedop().
> 
> Hi, Laurent,
> 
> Aleksandar R. is considering submitting this part too:
> 
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index b5bc6e4..0e56b8d 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -4194,6 +4194,17 @@ static abi_long do_ipc(CPUArchState *cpu_env,
>      case IPCOP_shmctl:
>          ret = do_shmctl(first, second, ptr);
>          break;
> +#ifdef __NR_ipc
> +    case IPCOP_semtimedop: {
> +        struct sembuf sops[nsops];
> +        if (target_to_host_sembuf(first, ptr, second)) {
> +            ret = -TARGET_EFAULT;
> +        } else {
> +            ret = get_errno(safe_ipc(IPCOP_semtimedop, first, second, 0, 
> sops, 0));
> +        }
> +        break;
> +    }
> +#endif

You should do something like that:

    case IPCOP_semtimedop
        ret = do_semtimedop( ... );
        break;

Thanks,
Laurent