1/* CPU support.
2   Copyright (C) 1998, 2007, 2008, 2009, 2010, 2011
3   Free Software Foundation, Inc.
4   Contributed by Cygnus Solutions.
5
6This file is part of GDB, the GNU debugger.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 3 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20
21#include "sim-main.h"
22#include "bfd.h"
23
24/* Allocate space for all cpus in the simulator.
25   Space for the cpu must currently exist prior to parsing ARGV.
26   EXTRA_BYTES is additional space to allocate for the sim_cpu struct.  */
27/* ??? wip.  better solution must wait.  */
28
29SIM_RC
30sim_cpu_alloc_all (SIM_DESC sd, int ncpus, int extra_bytes)
31{
32  int c;
33
34  for (c = 0; c < ncpus; ++c)
35    STATE_CPU (sd, c) = sim_cpu_alloc (sd, extra_bytes);
36  return SIM_RC_OK;
37}
38
39/* Allocate space for a cpu object.
40   EXTRA_BYTES is additional space to allocate for the sim_cpu struct.  */
41
42sim_cpu *
43sim_cpu_alloc (SIM_DESC sd, int extra_bytes)
44{
45  return zalloc (sizeof (sim_cpu) + extra_bytes);
46}
47
48/* Free all resources held by all cpus.  */
49
50void
51sim_cpu_free_all (SIM_DESC sd)
52{
53  int c;
54
55  for (c = 0; c < MAX_NR_PROCESSORS; ++c)
56    if (STATE_CPU (sd, c))
57      sim_cpu_free (STATE_CPU (sd, c));
58}
59
60/* Free all resources used by CPU.  */
61
62void
63sim_cpu_free (sim_cpu *cpu)
64{
65  free (cpu);
66}
67
68/* PC utilities.  */
69
70sim_cia
71sim_pc_get (sim_cpu *cpu)
72{
73  return (* CPU_PC_FETCH (cpu)) (cpu);
74}
75
76void
77sim_pc_set (sim_cpu *cpu, sim_cia newval)
78{
79  (* CPU_PC_STORE (cpu)) (cpu, newval);
80}
81