[05/14] bsd-user/errno_defs.h: Add internal error numbers

Commit Message

Warner Losh Sept. 22, 2021, 6:14 a.m. UTC

From: Stacey Son <[e-mail]>

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 <[e-mail]>
Signed-off-by: Warner Losh <[e-mail]>
---
 bsd-user/errno_defs.h | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

Comments

Richard Henderson Sept. 23, 2021, 5:59 p.m. UTC | #1

On 9/21/21 11:14 PM, Warner Losh wrote:
> From: Stacey Son<[e-mail]>
> 
> 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<[e-mail]>
> Signed-off-by: Warner Losh<[e-mail]>
> ---
>   bsd-user/errno_defs.h | 14 +++++++++++---
>   1 file changed, 11 insertions(+), 3 deletions(-)

Reviewed-by: Richard Henderson <[e-mail]>

r~

Patch

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_ */