Re: [PATCH v2 06/15] bsd-user/errno_defs.h: Add internal error numbers

[Kyle Evans]

On Fri, Oct 8, 2021 at 6:15 PM Warner Losh <imp@bsdimp.com> wrote:
>
> From: Stacey Son <sson@FreeBSD.org>
>
> To emulate signals and interrupted system calls, we need to have the
> same mechanisms we have in the kernel, including these errno values.
>
> Signed-off-by: Stacey Son <sson@FreeBSD.org>
> Signed-off-by: Warner Losh <imp@bsdimp.com>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  bsd-user/errno_defs.h | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
>
> diff --git a/bsd-user/errno_defs.h b/bsd-user/errno_defs.h
> index 1efa502a12..b538dd93da 100644
> --- a/bsd-user/errno_defs.h
> +++ b/bsd-user/errno_defs.h
> @@ -1,6 +1,3 @@
> -/*      $OpenBSD: errno.h,v 1.20 2007/09/03 14:37:52 millert Exp $      */
> -/*      $NetBSD: errno.h,v 1.10 1996/01/20 01:33:53 jtc Exp $   */
> -
>  /*
>   * Copyright (c) 1982, 1986, 1989, 1993
>   *      The Regents of the University of California.  All rights reserved.
> @@ -37,6 +34,9 @@
>   *      @(#)errno.h     8.5 (Berkeley) 1/21/94
>   */
>
> +#ifndef _ERRNO_DEFS_H_
> +#define _ERRNO_DEFS_H_
> +
>  #define TARGET_EPERM            1               /* Operation not permitted */
>  #define TARGET_ENOENT           2               /* No such file or directory 
> */
>  #define TARGET_ESRCH            3               /* No such process */
> @@ -147,3 +147,11 @@
>  #define TARGET_EIDRM            89              /* Identifier removed */
>  #define TARGET_ENOMSG           90              /* No message of desired 
> type */
>  #define TARGET_ELAST            90              /* Must be equal largest 
> errno */
> +
> +/* Internal errors: */
> +#define TARGET_EJUSTRETURN      254             /* Just return without
> +                                                   modifing regs */
> +#define TARGET_ERESTART         255             /* Restart syscall */
> +#define TARGET_ERESTARTSYS      TARGET_ERESTART /* Linux compat */
> +
> +#endif /* !  _ERRNO_DEFS_H_ */
> --
> 2.32.0
>

Reviewed-by: Kyle Evans <kevans@FreeBSD.org>