1/* Simulator system call support.
2
3   Copyright 2002-2023 Free Software Foundation, Inc.
4
5   This file is part of simulators.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#ifndef SIM_SYSCALL_H
21#define SIM_SYSCALL_H
22
23struct cb_syscall;
24
25/* Perform a syscall on the behalf of the target program.  The error/result are
26   normalized into a single value (like a lot of operating systems do).  If you
27   want the split values, see the other function below.
28
29   Note: While cb_syscall requires you handle the exit syscall yourself, that is
30   not the case with these helpers.
31
32   Note: Types here match the gdb callback interface.  */
33long sim_syscall (SIM_CPU *, int func, long arg1, long arg2, long arg3,
34		  long arg4);
35
36/* Same as sim_syscall, but return the split values by referenced.  */
37void sim_syscall_multi (SIM_CPU *, int func, long arg1, long arg2, long arg3,
38			long arg4, long *result, long *result2, int *errcode);
39
40/* Simple memory callbacks for cb_syscall's read_mem/write_mem that assume
41   cb_syscall's p1 and p2 are set to the SIM_DESC and SIM_CPU respectively.  */
42int sim_syscall_read_mem (host_callback *, struct cb_syscall *, unsigned long,
43			  char *, int);
44int sim_syscall_write_mem (host_callback *, struct cb_syscall *, unsigned long,
45			   const char *, int);
46
47#endif
48