Re: [PATCH 22/22] Add stubs for vadvise(), sbrk() and sstk()

[Richard Henderson <richard.henderson@linaro.org>]

On 8/19/23 02:48, Karim Taha wrote:
> From: Stacey Son <sson@FreeBSD.org>
> 
> The above system calls are not supported by qemu.
> 
> Signed-off-by: Stacey Son <sson@FreeBSD.org>
> Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
> ---
>   bsd-user/bsd-mem.h            | 21 +++++++++++++++++++++
>   bsd-user/freebsd/os-syscall.c | 12 ++++++++++++
>   2 files changed, 33 insertions(+)
> 
> diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h
> index f737b94885..274178bef7 100644
> --- a/bsd-user/bsd-mem.h
> +++ b/bsd-user/bsd-mem.h
> @@ -407,4 +407,25 @@ static inline abi_long do_bsd_shmdt(abi_ulong shmaddr)
>       return get_errno(shmdt(g2h_untagged(shmaddr)));
>   }
>   
> +static inline abi_long do_bsd_vadvise(void)
> +{
> +    /* See sys_ovadvise() in vm_unix.c */
> +    qemu_log("qemu: Unsupported syscall vadvise()\n");
> +    return -TARGET_ENOSYS;
> +}

I see EINVAL not ENOSYS.

> +static inline abi_long do_bsd_sbrk(void)
> +{
> +    /* see sys_sbrk() in vm_mmap.c */
> +    qemu_log("qemu: Unsupported syscall sbrk()\n");
> +    return -TARGET_ENOSYS;
> +}
> +
> +static inline abi_long do_bsd_sstk(void)
> +{
> +    /* see sys_sstk() in vm_mmap.c */
> +    qemu_log("qemu: Unsupported syscall sstk()\n");
> +    return -TARGET_ENOSYS;
> +}

I see EOPNOTSUPP not ENOSYS.

I don't see any point in logging these.


r~