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c906108c | 1 | /* CPU support. |
3666a048 | 2 | Copyright (C) 1998-2021 Free Software Foundation, Inc. |
c906108c SS |
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 | |
4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
c906108c SS |
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 | ||
4744ac1b JB |
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/>. */ | |
c906108c | 19 | |
b3f8962b TV |
20 | #include <stdlib.h> |
21 | ||
c906108c SS |
22 | #include "sim-main.h" |
23 | #include "bfd.h" | |
24 | ||
25 | /* Allocate space for all cpus in the simulator. | |
d5a71b11 | 26 | Space for the cpu must currently exist prior to parsing ARGV. */ |
c906108c SS |
27 | /* ??? wip. better solution must wait. */ |
28 | ||
29 | SIM_RC | |
d5a71b11 | 30 | sim_cpu_alloc_all (SIM_DESC sd, int ncpus) |
c906108c SS |
31 | { |
32 | int c; | |
33 | ||
34 | for (c = 0; c < ncpus; ++c) | |
d5a71b11 | 35 | STATE_CPU (sd, c) = sim_cpu_alloc (sd); |
c906108c SS |
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 | ||
42 | sim_cpu * | |
d5a71b11 | 43 | sim_cpu_alloc (SIM_DESC sd) |
c906108c | 44 | { |
d5a71b11 MF |
45 | int extra_bytes = 0; |
46 | ||
47 | #ifdef CGEN_ARCH | |
48 | extra_bytes += cgen_cpu_max_extra_bytes (); | |
49 | #endif | |
50 | ||
c906108c SS |
51 | return zalloc (sizeof (sim_cpu) + extra_bytes); |
52 | } | |
53 | ||
54 | /* Free all resources held by all cpus. */ | |
55 | ||
56 | void | |
57 | sim_cpu_free_all (SIM_DESC sd) | |
58 | { | |
59 | int c; | |
60 | ||
61 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
62 | if (STATE_CPU (sd, c)) | |
63 | sim_cpu_free (STATE_CPU (sd, c)); | |
64 | } | |
65 | ||
66 | /* Free all resources used by CPU. */ | |
67 | ||
68 | void | |
69 | sim_cpu_free (sim_cpu *cpu) | |
70 | { | |
d79fe0d6 | 71 | free (cpu); |
c906108c SS |
72 | } |
73 | \f | |
74 | /* PC utilities. */ | |
75 | ||
76 | sim_cia | |
77 | sim_pc_get (sim_cpu *cpu) | |
78 | { | |
79 | return (* CPU_PC_FETCH (cpu)) (cpu); | |
80 | } | |
81 | ||
82 | void | |
83 | sim_pc_set (sim_cpu *cpu, sim_cia newval) | |
84 | { | |
85 | (* CPU_PC_STORE (cpu)) (cpu, newval); | |
86 | } |