Commit | Line | Data |
---|---|---|
b34f6357 | 1 | /* Main simulator entry points specific to the FRV. |
7b6bb8da | 2 | Copyright (C) 1998, 1999, 2000, 2007, 2008, 2009, 2010, 2011 |
e4d013fc | 3 | Free Software Foundation, Inc. |
b34f6357 DB |
4 | Contributed by Red Hat. |
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. | |
b34f6357 DB |
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/>. */ | |
b34f6357 DB |
20 | |
21 | #define WANT_CPU | |
22 | #define WANT_CPU_FRVBF | |
23 | #include "sim-main.h" | |
24 | #ifdef HAVE_STDLIB_H | |
25 | #include <stdlib.h> | |
26 | #endif | |
27 | #include "sim-options.h" | |
28 | #include "libiberty.h" | |
29 | #include "bfd.h" | |
30 | #include "elf-bfd.h" | |
31 | ||
32 | static void free_state (SIM_DESC); | |
33 | static void print_frv_misc_cpu (SIM_CPU *cpu, int verbose); | |
34 | ||
35 | /* Records simulator descriptor so utilities like frv_dump_regs can be | |
36 | called from gdb. */ | |
37 | SIM_DESC current_state; | |
38 | \f | |
39 | /* Cover function of sim_state_free to free the cpu buffers as well. */ | |
40 | ||
41 | static void | |
42 | free_state (SIM_DESC sd) | |
43 | { | |
44 | if (STATE_MODULES (sd) != NULL) | |
45 | sim_module_uninstall (sd); | |
46 | sim_cpu_free_all (sd); | |
47 | sim_state_free (sd); | |
48 | } | |
49 | ||
50 | /* Create an instance of the simulator. */ | |
51 | ||
52 | SIM_DESC | |
53 | sim_open (kind, callback, abfd, argv) | |
54 | SIM_OPEN_KIND kind; | |
55 | host_callback *callback; | |
56 | bfd *abfd; | |
57 | char **argv; | |
58 | { | |
59 | char c; | |
60 | int i; | |
61 | unsigned long elf_flags = 0; | |
62 | SIM_DESC sd = sim_state_alloc (kind, callback); | |
63 | ||
64 | /* The cpu data is kept in a separately allocated chunk of memory. */ | |
65 | if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK) | |
66 | { | |
67 | free_state (sd); | |
68 | return 0; | |
69 | } | |
70 | ||
71 | #if 0 /* FIXME: pc is in mach-specific struct */ | |
72 | /* FIXME: watchpoints code shouldn't need this */ | |
73 | { | |
74 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
75 | STATE_WATCHPOINTS (sd)->pc = &(PC); | |
76 | STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC); | |
77 | } | |
78 | #endif | |
79 | ||
80 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) | |
81 | { | |
82 | free_state (sd); | |
83 | return 0; | |
84 | } | |
85 | ||
86 | /* These options override any module options. | |
87 | Obviously ambiguity should be avoided, however the caller may wish to | |
88 | augment the meaning of an option. */ | |
89 | sim_add_option_table (sd, NULL, frv_options); | |
90 | ||
91 | /* getopt will print the error message so we just have to exit if this fails. | |
92 | FIXME: Hmmm... in the case of gdb we need getopt to call | |
93 | print_filtered. */ | |
94 | if (sim_parse_args (sd, argv) != SIM_RC_OK) | |
95 | { | |
96 | free_state (sd); | |
97 | return 0; | |
98 | } | |
99 | ||
100 | #if 0 | |
101 | /* Allocate a handler for the control registers and other devices | |
102 | if no memory for that range has been allocated by the user. | |
103 | All are allocated in one chunk to keep things from being | |
104 | unnecessarily complicated. */ | |
105 | if (sim_core_read_buffer (sd, NULL, read_map, &c, FRV_DEVICE_ADDR, 1) == 0) | |
106 | sim_core_attach (sd, NULL, | |
107 | 0 /*level*/, | |
108 | access_read_write, | |
109 | 0 /*space ???*/, | |
110 | FRV_DEVICE_ADDR, FRV_DEVICE_LEN /*nr_bytes*/, | |
111 | 0 /*modulo*/, | |
112 | &frv_devices, | |
113 | NULL /*buffer*/); | |
114 | #endif | |
115 | ||
116 | /* Allocate core managed memory if none specified by user. | |
117 | Use address 4 here in case the user wanted address 0 unmapped. */ | |
118 | if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0) | |
119 | sim_do_commandf (sd, "memory region 0,0x%lx", FRV_DEFAULT_MEM_SIZE); | |
120 | ||
121 | /* check for/establish the reference program image */ | |
122 | if (sim_analyze_program (sd, | |
123 | (STATE_PROG_ARGV (sd) != NULL | |
124 | ? *STATE_PROG_ARGV (sd) | |
125 | : NULL), | |
126 | abfd) != SIM_RC_OK) | |
127 | { | |
128 | free_state (sd); | |
129 | return 0; | |
130 | } | |
131 | ||
132 | /* set machine and architecture correctly instead of defaulting to frv */ | |
133 | { | |
134 | bfd *prog_bfd = STATE_PROG_BFD (sd); | |
135 | if (prog_bfd != NULL) | |
136 | { | |
137 | struct elf_backend_data *backend_data; | |
138 | ||
139 | if (bfd_get_arch (prog_bfd) != bfd_arch_frv) | |
140 | { | |
141 | sim_io_eprintf (sd, "%s: \"%s\" is not a FRV object file\n", | |
142 | STATE_MY_NAME (sd), | |
143 | bfd_get_filename (prog_bfd)); | |
144 | free_state (sd); | |
145 | return 0; | |
146 | } | |
147 | ||
148 | backend_data = get_elf_backend_data (prog_bfd); | |
149 | ||
150 | if (backend_data != NULL) | |
151 | backend_data->elf_backend_object_p (prog_bfd); | |
152 | ||
153 | elf_flags = elf_elfheader (prog_bfd)->e_flags; | |
154 | } | |
155 | } | |
156 | ||
157 | /* Establish any remaining configuration options. */ | |
158 | if (sim_config (sd) != SIM_RC_OK) | |
159 | { | |
160 | free_state (sd); | |
161 | return 0; | |
162 | } | |
163 | ||
164 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
165 | { | |
166 | free_state (sd); | |
167 | return 0; | |
168 | } | |
169 | ||
170 | /* Open a copy of the cpu descriptor table. */ | |
171 | { | |
172 | CGEN_CPU_DESC cd = frv_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, | |
173 | CGEN_ENDIAN_BIG); | |
174 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
175 | { | |
176 | SIM_CPU *cpu = STATE_CPU (sd, i); | |
177 | CPU_CPU_DESC (cpu) = cd; | |
178 | CPU_DISASSEMBLER (cpu) = sim_cgen_disassemble_insn; | |
179 | CPU_ELF_FLAGS (cpu) = elf_flags; | |
180 | } | |
181 | frv_cgen_init_dis (cd); | |
182 | } | |
183 | ||
184 | /* Initialize various cgen things not done by common framework. | |
185 | Must be done after frv_cgen_cpu_open. */ | |
186 | cgen_init (sd); | |
187 | ||
188 | /* CPU specific initialization. */ | |
189 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
190 | { | |
191 | SIM_CPU* cpu = STATE_CPU (sd, i); | |
192 | frv_initialize (cpu, sd); | |
193 | } | |
194 | ||
195 | /* Store in a global so things like sparc32_dump_regs can be invoked | |
196 | from the gdb command line. */ | |
197 | current_state = sd; | |
198 | ||
199 | return sd; | |
200 | } | |
201 | ||
202 | void | |
203 | sim_close (sd, quitting) | |
204 | SIM_DESC sd; | |
205 | int quitting; | |
206 | { | |
207 | int i; | |
208 | /* Terminate cache support. */ | |
209 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
210 | { | |
211 | SIM_CPU* cpu = STATE_CPU (sd, i); | |
212 | frv_cache_term (CPU_INSN_CACHE (cpu)); | |
213 | frv_cache_term (CPU_DATA_CACHE (cpu)); | |
214 | } | |
215 | ||
216 | frv_cgen_cpu_close (CPU_CPU_DESC (STATE_CPU (sd, 0))); | |
217 | sim_module_uninstall (sd); | |
218 | } | |
219 | \f | |
220 | SIM_RC | |
221 | sim_create_inferior (sd, abfd, argv, envp) | |
222 | SIM_DESC sd; | |
223 | bfd *abfd; | |
224 | char **argv; | |
225 | char **envp; | |
226 | { | |
227 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
228 | SIM_ADDR addr; | |
229 | ||
230 | if (abfd != NULL) | |
231 | addr = bfd_get_start_address (abfd); | |
232 | else | |
233 | addr = 0; | |
234 | sim_pc_set (current_cpu, addr); | |
235 | ||
236 | #if 0 | |
237 | STATE_ARGV (sd) = sim_copy_argv (argv); | |
238 | STATE_ENVP (sd) = sim_copy_argv (envp); | |
239 | #endif | |
240 | ||
241 | return SIM_RC_OK; | |
242 | } |