qemu/common-user/safe-syscall-error.c

26 lines
721 B
C
Raw Normal View History

/*
* safe-syscall-error.c: errno setting fragment
* This is intended to be invoked by safe-syscall.S
*
* Written by Richard Henderson <rth@twiddle.net>
* Copyright (C) 2021 Red Hat, Inc.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "user/safe-syscall.h"
/*
* This is intended to be invoked via tail-call on the error path
* from the assembly in host/arch/safe-syscall.inc.S. This takes
* care of the host specific addressing of errno.
* Return -1 to finalize the return value for safe_syscall_base.
*/
long safe_syscall_set_errno_tail(int value)
{
errno = value;
return -1;
}