1 /* CPU support.
2 Copyright (C) 1998-2013 Free Software Foundation, Inc.
3 Contributed by Cygnus Solutions.
4
5 This file is part of GDB, the GNU debugger.
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 #include "sim-main.h"
21 #include "bfd.h"
22
23 /* Allocate space for all cpus in the simulator.
24 Space for the cpu must currently exist prior to parsing ARGV.
25 EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */
26 /* ??? wip. better solution must wait. */
27
28 SIM_RC
sim_cpu_alloc_all(SIM_DESC sd,int ncpus,int extra_bytes)29 sim_cpu_alloc_all (SIM_DESC sd, int ncpus, int extra_bytes)
30 {
31 int c;
32
33 for (c = 0; c < ncpus; ++c)
34 STATE_CPU (sd, c) = sim_cpu_alloc (sd, extra_bytes);
35 return SIM_RC_OK;
36 }
37
38 /* Allocate space for a cpu object.
39 EXTRA_BYTES is additional space to allocate for the sim_cpu struct. */
40
41 sim_cpu *
sim_cpu_alloc(SIM_DESC sd,int extra_bytes)42 sim_cpu_alloc (SIM_DESC sd, int extra_bytes)
43 {
44 return zalloc (sizeof (sim_cpu) + extra_bytes);
45 }
46
47 /* Free all resources held by all cpus. */
48
49 void
sim_cpu_free_all(SIM_DESC sd)50 sim_cpu_free_all (SIM_DESC sd)
51 {
52 int c;
53
54 for (c = 0; c < MAX_NR_PROCESSORS; ++c)
55 if (STATE_CPU (sd, c))
56 sim_cpu_free (STATE_CPU (sd, c));
57 }
58
59 /* Free all resources used by CPU. */
60
61 void
sim_cpu_free(sim_cpu * cpu)62 sim_cpu_free (sim_cpu *cpu)
63 {
64 free (cpu);
65 }
66
67 /* PC utilities. */
68
69 sim_cia
sim_pc_get(sim_cpu * cpu)70 sim_pc_get (sim_cpu *cpu)
71 {
72 return (* CPU_PC_FETCH (cpu)) (cpu);
73 }
74
75 void
sim_pc_set(sim_cpu * cpu,sim_cia newval)76 sim_pc_set (sim_cpu *cpu, sim_cia newval)
77 {
78 (* CPU_PC_STORE (cpu)) (cpu, newval);
79 }
80