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edece237 | 1 | /* Main simulator entry points specific to the IQ2000. |
7b6bb8da JB |
2 | Copyright (C) 2000, 2007, 2008, 2009, 2010, 2011 |
3 | Free Software Foundation, Inc. | |
edece237 CV |
4 | Contributed by Cygnus Solutions. |
5 | ||
6 | This file is part of the GNU simulators. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
4744ac1b JB |
10 | the Free Software Foundation; either version 3 of the License, or |
11 | (at your option) any later version. | |
edece237 CV |
12 | |
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
4744ac1b JB |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
edece237 CV |
20 | |
21 | #include "sim-main.h" | |
22 | #ifdef HAVE_STDLIB_H | |
23 | #include <stdlib.h> | |
24 | #endif | |
25 | #include "sim-options.h" | |
26 | #include "libiberty.h" | |
27 | #include "bfd.h" | |
28 | ||
29 | static void free_state (SIM_DESC); | |
30 | ||
31 | /* Records simulator descriptor so utilities like iq2000_dump_regs can be | |
32 | called from gdb. */ | |
33 | SIM_DESC current_state; | |
34 | \f | |
35 | /* Cover function for sim_cgen_disassemble_insn. */ | |
36 | ||
37 | void | |
38 | iq2000bf_disassemble_insn (SIM_CPU *cpu, const CGEN_INSN *insn, | |
39 | const ARGBUF *abuf, IADDR pc, char *buf) | |
40 | { | |
41 | sim_cgen_disassemble_insn(cpu, insn, abuf, pc, buf); | |
42 | } | |
43 | ||
44 | /* Cover function of sim_state_free to free the cpu buffers as well. */ | |
45 | ||
46 | static void | |
47 | free_state (SIM_DESC sd) | |
48 | { | |
49 | if (STATE_MODULES (sd) != NULL) | |
50 | sim_module_uninstall (sd); | |
51 | sim_cpu_free_all (sd); | |
52 | sim_state_free (sd); | |
53 | } | |
54 | ||
55 | /* Create an instance of the simulator. */ | |
56 | ||
57 | SIM_DESC | |
58 | sim_open (kind, callback, abfd, argv) | |
59 | SIM_OPEN_KIND kind; | |
60 | host_callback *callback; | |
61 | struct bfd *abfd; | |
62 | char **argv; | |
63 | { | |
64 | char c; | |
65 | int i; | |
66 | SIM_DESC sd = sim_state_alloc (kind, callback); | |
67 | ||
68 | /* The cpu data is kept in a separately allocated chunk of memory. */ | |
69 | if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK) | |
70 | { | |
71 | free_state (sd); | |
72 | return 0; | |
73 | } | |
74 | ||
75 | #if 0 /* FIXME: pc is in mach-specific struct */ | |
76 | /* FIXME: watchpoints code shouldn't need this */ | |
77 | { | |
78 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
79 | STATE_WATCHPOINTS (sd)->pc = &(PC); | |
80 | STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC); | |
81 | } | |
82 | #endif | |
83 | ||
84 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) | |
85 | { | |
86 | free_state (sd); | |
87 | return 0; | |
88 | } | |
89 | ||
90 | #if 0 /* FIXME: 'twould be nice if we could do this */ | |
91 | /* These options override any module options. | |
92 | Obviously ambiguity should be avoided, however the caller may wish to | |
93 | augment the meaning of an option. */ | |
94 | if (extra_options != NULL) | |
95 | sim_add_option_table (sd, extra_options); | |
96 | #endif | |
97 | ||
98 | /* getopt will print the error message so we just have to exit if this fails. | |
99 | FIXME: Hmmm... in the case of gdb we need getopt to call | |
100 | print_filtered. */ | |
101 | if (sim_parse_args (sd, argv) != SIM_RC_OK) | |
102 | { | |
103 | free_state (sd); | |
104 | return 0; | |
105 | } | |
106 | ||
107 | /* Allocate core managed memory. */ | |
108 | sim_do_commandf (sd, "memory region 0x%lx,0x%lx", IQ2000_INSN_VALUE, IQ2000_INSN_MEM_SIZE); | |
109 | sim_do_commandf (sd, "memory region 0x%lx,0x%lx", IQ2000_DATA_VALUE, IQ2000_DATA_MEM_SIZE); | |
110 | ||
111 | /* check for/establish the reference program image */ | |
112 | if (sim_analyze_program (sd, | |
113 | (STATE_PROG_ARGV (sd) != NULL | |
114 | ? *STATE_PROG_ARGV (sd) | |
115 | : NULL), | |
116 | abfd) != SIM_RC_OK) | |
117 | { | |
118 | free_state (sd); | |
119 | return 0; | |
120 | } | |
121 | ||
122 | /* Establish any remaining configuration options. */ | |
123 | if (sim_config (sd) != SIM_RC_OK) | |
124 | { | |
125 | free_state (sd); | |
126 | return 0; | |
127 | } | |
128 | ||
129 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
130 | { | |
131 | free_state (sd); | |
132 | return 0; | |
133 | } | |
134 | ||
135 | /* Open a copy of the cpu descriptor table. */ | |
136 | { | |
137 | CGEN_CPU_DESC cd = iq2000_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, | |
138 | CGEN_ENDIAN_BIG); | |
139 | ||
140 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
141 | { | |
142 | SIM_CPU *cpu = STATE_CPU (sd, i); | |
143 | CPU_CPU_DESC (cpu) = cd; | |
144 | CPU_DISASSEMBLER (cpu) = iq2000bf_disassemble_insn; | |
145 | } | |
146 | iq2000_cgen_init_dis (cd); | |
147 | } | |
148 | ||
149 | /* Initialize various cgen things not done by common framework. | |
150 | Must be done after iq2000_cgen_cpu_open. */ | |
151 | cgen_init (sd); | |
152 | ||
153 | /* Store in a global so things like sparc32_dump_regs can be invoked | |
154 | from the gdb command line. */ | |
155 | current_state = sd; | |
156 | ||
157 | return sd; | |
158 | } | |
159 | ||
160 | void | |
161 | sim_close (sd, quitting) | |
162 | SIM_DESC sd; | |
163 | int quitting; | |
164 | { | |
165 | iq2000_cgen_cpu_close (CPU_CPU_DESC (STATE_CPU (sd, 0))); | |
166 | sim_module_uninstall (sd); | |
167 | } | |
168 | \f | |
169 | SIM_RC | |
170 | sim_create_inferior (sd, abfd, argv, envp) | |
171 | SIM_DESC sd; | |
172 | struct bfd *abfd; | |
173 | char **argv; | |
174 | char **envp; | |
175 | { | |
176 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
177 | SIM_ADDR addr; | |
178 | ||
179 | if (abfd != NULL) | |
180 | addr = bfd_get_start_address (abfd); | |
181 | else | |
182 | addr = CPU2INSN(0); | |
183 | sim_pc_set (current_cpu, addr); | |
184 | ||
185 | #if 0 | |
186 | STATE_ARGV (sd) = sim_copy_argv (argv); | |
187 | STATE_ENVP (sd) = sim_copy_argv (envp); | |
188 | #endif | |
189 | ||
190 | return SIM_RC_OK; | |
191 | } | |
192 | ||
193 | void | |
194 | sim_do_command (sd, cmd) | |
195 | SIM_DESC sd; | |
196 | char *cmd; | |
197 | { | |
198 | if (sim_args_command (sd, cmd) != SIM_RC_OK) | |
199 | sim_io_eprintf (sd, "Unknown command `%s'\n", cmd); | |
200 | } | |
201 | ||
202 | ||
203 |