1 /*
2  * safe-syscall-error.c: errno setting fragment
3  * This is intended to be invoked by safe-syscall.S
4  *
5  * Written by Richard Henderson <rth@twiddle.net>
6  * Copyright (C) 2021 Red Hat, Inc.
7  *
8  * This work is licensed under the terms of the GNU GPL, version 2 or later.
9  * See the COPYING file in the top-level directory.
10  */
11 
12 #include "qemu/osdep.h"
13 #include "user/safe-syscall.h"
14 
15 /*
16  * This is intended to be invoked via tail-call on the error path
17  * from the assembly in host/arch/safe-syscall.inc.S.  This takes
18  * care of the host specific addressing of errno.
19  * Return -1 to finalize the return value for safe_syscall_base.
20  */
21 long safe_syscall_set_errno_tail(int value)
22 {
23     errno = value;
24     return -1;
25 }
26