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edece237 | 1 | /* Main simulator entry points specific to the IQ2000. |
1d506c26 | 2 | Copyright (C) 2000-2024 Free Software Foundation, Inc. |
edece237 CV |
3 | Contributed by Cygnus Solutions. |
4 | ||
5 | This file is part of the GNU 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 | |
4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
edece237 CV |
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/>. */ | |
edece237 | 19 | |
6df01ab8 MF |
20 | /* This must come before any other includes. */ |
21 | #include "defs.h" | |
22 | ||
edece237 | 23 | #include "sim-main.h" |
68ed2854 | 24 | |
edece237 | 25 | #include <stdlib.h> |
68ed2854 | 26 | |
8cfc9a18 | 27 | #include "sim/callback.h" |
edece237 CV |
28 | #include "sim-options.h" |
29 | #include "libiberty.h" | |
30 | #include "bfd.h" | |
31 | ||
32 | static void free_state (SIM_DESC); | |
edece237 CV |
33 | \f |
34 | /* Cover function for sim_cgen_disassemble_insn. */ | |
35 | ||
94c9216c | 36 | static void |
edece237 CV |
37 | iq2000bf_disassemble_insn (SIM_CPU *cpu, const CGEN_INSN *insn, |
38 | const ARGBUF *abuf, IADDR pc, char *buf) | |
39 | { | |
40 | sim_cgen_disassemble_insn(cpu, insn, abuf, pc, buf); | |
41 | } | |
42 | ||
43 | /* Cover function of sim_state_free to free the cpu buffers as well. */ | |
44 | ||
45 | static void | |
46 | free_state (SIM_DESC sd) | |
47 | { | |
48 | if (STATE_MODULES (sd) != NULL) | |
49 | sim_module_uninstall (sd); | |
50 | sim_cpu_free_all (sd); | |
51 | sim_state_free (sd); | |
52 | } | |
53 | ||
1c636da0 MF |
54 | extern const SIM_MACH * const iq2000_sim_machs[]; |
55 | ||
edece237 CV |
56 | /* Create an instance of the simulator. */ |
57 | ||
58 | SIM_DESC | |
81e6e8ae TT |
59 | sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct bfd *abfd, |
60 | char * const *argv) | |
edece237 | 61 | { |
edece237 CV |
62 | int i; |
63 | SIM_DESC sd = sim_state_alloc (kind, callback); | |
64 | ||
ba307cdd | 65 | /* Set default options before parsing user options. */ |
1c636da0 | 66 | STATE_MACHS (sd) = iq2000_sim_machs; |
d414eb3e | 67 | STATE_MODEL_NAME (sd) = "iq2000"; |
ba307cdd | 68 | current_alignment = STRICT_ALIGNMENT; |
f9a4d543 | 69 | current_target_byte_order = BFD_ENDIAN_BIG; |
ba307cdd | 70 | |
edece237 | 71 | /* The cpu data is kept in a separately allocated chunk of memory. */ |
883be197 | 72 | if (sim_cpu_alloc_all_extra (sd, 0, sizeof (struct iq2000_sim_cpu)) |
06f4b7b6 | 73 | != SIM_RC_OK) |
edece237 CV |
74 | { |
75 | free_state (sd); | |
76 | return 0; | |
77 | } | |
78 | ||
edece237 CV |
79 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) |
80 | { | |
81 | free_state (sd); | |
82 | return 0; | |
83 | } | |
84 | ||
77cf2ef5 | 85 | /* The parser will print an error message for us, so we silently return. */ |
edece237 CV |
86 | if (sim_parse_args (sd, argv) != SIM_RC_OK) |
87 | { | |
88 | free_state (sd); | |
89 | return 0; | |
90 | } | |
91 | ||
92 | /* Allocate core managed memory. */ | |
94c9216c MF |
93 | sim_do_commandf (sd, "memory region 0x%x,0x%x", IQ2000_INSN_VALUE, IQ2000_INSN_MEM_SIZE); |
94 | sim_do_commandf (sd, "memory region 0x%x,0x%x", IQ2000_DATA_VALUE, IQ2000_DATA_MEM_SIZE); | |
edece237 CV |
95 | |
96 | /* check for/establish the reference program image */ | |
e8f20a28 | 97 | if (sim_analyze_program (sd, STATE_PROG_FILE (sd), abfd) != SIM_RC_OK) |
edece237 CV |
98 | { |
99 | free_state (sd); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | /* Establish any remaining configuration options. */ | |
104 | if (sim_config (sd) != SIM_RC_OK) | |
105 | { | |
106 | free_state (sd); | |
107 | return 0; | |
108 | } | |
109 | ||
110 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
111 | { | |
112 | free_state (sd); | |
113 | return 0; | |
114 | } | |
115 | ||
116 | /* Open a copy of the cpu descriptor table. */ | |
117 | { | |
118 | CGEN_CPU_DESC cd = iq2000_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, | |
119 | CGEN_ENDIAN_BIG); | |
120 | ||
121 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
122 | { | |
123 | SIM_CPU *cpu = STATE_CPU (sd, i); | |
124 | CPU_CPU_DESC (cpu) = cd; | |
125 | CPU_DISASSEMBLER (cpu) = iq2000bf_disassemble_insn; | |
126 | } | |
127 | iq2000_cgen_init_dis (cd); | |
128 | } | |
129 | ||
edece237 CV |
130 | return sd; |
131 | } | |
edece237 CV |
132 | \f |
133 | SIM_RC | |
81e6e8ae | 134 | sim_create_inferior (SIM_DESC sd, struct bfd *abfd, char * const *argv, |
54f7a83a | 135 | char * const *env) |
edece237 CV |
136 | { |
137 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
8cfc9a18 | 138 | host_callback *cb = STATE_CALLBACK (sd); |
20fea663 | 139 | bfd_vma addr; |
edece237 CV |
140 | |
141 | if (abfd != NULL) | |
142 | addr = bfd_get_start_address (abfd); | |
143 | else | |
144 | addr = CPU2INSN(0); | |
145 | sim_pc_set (current_cpu, addr); | |
146 | ||
0e967299 MF |
147 | /* Standalone mode (i.e. `run`) will take care of the argv for us in |
148 | sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim' | |
149 | with `gdb`), we need to handle it because the user can change the | |
150 | argv on the fly via gdb's 'run'. */ | |
151 | if (STATE_PROG_ARGV (sd) != argv) | |
152 | { | |
153 | freeargv (STATE_PROG_ARGV (sd)); | |
154 | STATE_PROG_ARGV (sd) = dupargv (argv); | |
155 | } | |
edece237 | 156 | |
54f7a83a MF |
157 | if (STATE_PROG_ENVP (sd) != env) |
158 | { | |
159 | freeargv (STATE_PROG_ENVP (sd)); | |
160 | STATE_PROG_ENVP (sd) = dupargv (env); | |
161 | } | |
162 | ||
8cfc9a18 MF |
163 | cb->argv = STATE_PROG_ARGV (sd); |
164 | cb->envp = STATE_PROG_ENVP (sd); | |
165 | ||
edece237 CV |
166 | return SIM_RC_OK; |
167 | } |