Commit | Line | Data |
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c906108c | 1 | /* Main simulator entry points specific to the M32R. |
618f726f | 2 | Copyright (C) 1996-2016 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by Cygnus Support. |
4 | ||
16b47b25 | 5 | This file is part of GDB, the GNU debugger. |
c906108c | 6 | |
16b47b25 NC |
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 | 11 | |
16b47b25 NC |
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 SS |
19 | |
20 | #include "sim-main.h" | |
21 | #include "sim-options.h" | |
22 | #include "libiberty.h" | |
23 | #include "bfd.h" | |
24 | ||
25 | #ifdef HAVE_STRING_H | |
26 | #include <string.h> | |
27 | #else | |
28 | #ifdef HAVE_STRINGS_H | |
29 | #include <strings.h> | |
30 | #endif | |
31 | #endif | |
32 | #ifdef HAVE_STDLIB_H | |
33 | #include <stdlib.h> | |
34 | #endif | |
35 | ||
9c0c156b MF |
36 | #include "dv-m32r_uart.h" |
37 | ||
c906108c SS |
38 | static void free_state (SIM_DESC); |
39 | static void print_m32r_misc_cpu (SIM_CPU *cpu, int verbose); | |
40 | ||
41 | /* Records simulator descriptor so utilities like m32r_dump_regs can be | |
42 | called from gdb. */ | |
43 | SIM_DESC current_state; | |
44 | \f | |
45 | /* Cover function of sim_state_free to free the cpu buffers as well. */ | |
46 | ||
47 | static void | |
48 | free_state (SIM_DESC sd) | |
49 | { | |
50 | if (STATE_MODULES (sd) != NULL) | |
51 | sim_module_uninstall (sd); | |
52 | sim_cpu_free_all (sd); | |
53 | sim_state_free (sd); | |
54 | } | |
55 | ||
56 | /* Create an instance of the simulator. */ | |
57 | ||
58 | SIM_DESC | |
59 | sim_open (kind, callback, abfd, argv) | |
60 | SIM_OPEN_KIND kind; | |
61 | host_callback *callback; | |
6b4a8935 | 62 | struct bfd *abfd; |
c906108c SS |
63 | char **argv; |
64 | { | |
65 | SIM_DESC sd = sim_state_alloc (kind, callback); | |
66 | char c; | |
67 | int i; | |
68 | ||
69 | /* The cpu data is kept in a separately allocated chunk of memory. */ | |
70 | if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK) | |
71 | { | |
72 | free_state (sd); | |
73 | return 0; | |
74 | } | |
75 | ||
76 | #if 0 /* FIXME: pc is in mach-specific struct */ | |
77 | /* FIXME: watchpoints code shouldn't need this */ | |
78 | { | |
79 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
80 | STATE_WATCHPOINTS (sd)->pc = &(PC); | |
81 | STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC); | |
82 | } | |
83 | #endif | |
84 | ||
85 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) | |
86 | { | |
87 | free_state (sd); | |
88 | return 0; | |
89 | } | |
90 | ||
c906108c SS |
91 | #if 0 /* FIXME: 'twould be nice if we could do this */ |
92 | /* These options override any module options. | |
93 | Obviously ambiguity should be avoided, however the caller may wish to | |
94 | augment the meaning of an option. */ | |
95 | if (extra_options != NULL) | |
96 | sim_add_option_table (sd, extra_options); | |
97 | #endif | |
98 | ||
99 | /* getopt will print the error message so we just have to exit if this fails. | |
100 | FIXME: Hmmm... in the case of gdb we need getopt to call | |
101 | print_filtered. */ | |
102 | if (sim_parse_args (sd, argv) != SIM_RC_OK) | |
103 | { | |
104 | free_state (sd); | |
105 | return 0; | |
106 | } | |
107 | ||
108 | /* Allocate a handler for the control registers and other devices | |
109 | if no memory for that range has been allocated by the user. | |
110 | All are allocated in one chunk to keep things from being | |
9c0c156b MF |
111 | unnecessarily complicated. |
112 | TODO: Move these to the sim-model framework. */ | |
113 | sim_hw_parse (sd, "/core/%s/reg %#x %i", "m32r_uart", UART_BASE_ADDR, 0x100); | |
114 | sim_hw_parse (sd, "/core/%s/reg %#x %i", "m32r_cache", 0xfffffff0, 0x10); | |
c906108c SS |
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%x", M32R_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 | /* Establish any remaining configuration options. */ | |
133 | if (sim_config (sd) != SIM_RC_OK) | |
134 | { | |
135 | free_state (sd); | |
136 | return 0; | |
137 | } | |
138 | ||
139 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
140 | { | |
141 | free_state (sd); | |
142 | return 0; | |
143 | } | |
144 | ||
145 | /* Open a copy of the cpu descriptor table. */ | |
146 | { | |
7a292a7a SS |
147 | CGEN_CPU_DESC cd = m32r_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, |
148 | CGEN_ENDIAN_BIG); | |
c906108c SS |
149 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) |
150 | { | |
151 | SIM_CPU *cpu = STATE_CPU (sd, i); | |
152 | CPU_CPU_DESC (cpu) = cd; | |
153 | CPU_DISASSEMBLER (cpu) = sim_cgen_disassemble_insn; | |
154 | } | |
155 | m32r_cgen_init_dis (cd); | |
156 | } | |
157 | ||
158 | /* Initialize various cgen things not done by common framework. | |
159 | Must be done after m32r_cgen_cpu_open. */ | |
160 | cgen_init (sd); | |
161 | ||
162 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
163 | { | |
164 | /* Only needed for profiling, but the structure member is small. */ | |
165 | memset (CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i)), 0, | |
166 | sizeof (* CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i)))); | |
167 | /* Hook in callback for reporting these stats */ | |
168 | PROFILE_INFO_CPU_CALLBACK (CPU_PROFILE_DATA (STATE_CPU (sd, i))) | |
169 | = print_m32r_misc_cpu; | |
170 | } | |
171 | ||
172 | /* Store in a global so things like sparc32_dump_regs can be invoked | |
173 | from the gdb command line. */ | |
174 | current_state = sd; | |
175 | ||
176 | return sd; | |
177 | } | |
c906108c SS |
178 | \f |
179 | SIM_RC | |
180 | sim_create_inferior (sd, abfd, argv, envp) | |
181 | SIM_DESC sd; | |
6b4a8935 | 182 | struct bfd *abfd; |
c906108c SS |
183 | char **argv; |
184 | char **envp; | |
185 | { | |
186 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
187 | SIM_ADDR addr; | |
188 | ||
189 | if (abfd != NULL) | |
190 | addr = bfd_get_start_address (abfd); | |
191 | else | |
192 | addr = 0; | |
193 | sim_pc_set (current_cpu, addr); | |
194 | ||
6edf0760 NC |
195 | #ifdef M32R_LINUX |
196 | m32rbf_h_cr_set (current_cpu, | |
197 | m32r_decode_gdb_ctrl_regnum(SPI_REGNUM), 0x1f00000); | |
198 | m32rbf_h_cr_set (current_cpu, | |
199 | m32r_decode_gdb_ctrl_regnum(SPU_REGNUM), 0x1f00000); | |
200 | #endif | |
201 | ||
0e967299 MF |
202 | /* Standalone mode (i.e. `run`) will take care of the argv for us in |
203 | sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim' | |
204 | with `gdb`), we need to handle it because the user can change the | |
205 | argv on the fly via gdb's 'run'. */ | |
206 | if (STATE_PROG_ARGV (sd) != argv) | |
207 | { | |
208 | freeargv (STATE_PROG_ARGV (sd)); | |
209 | STATE_PROG_ARGV (sd) = dupargv (argv); | |
210 | } | |
c906108c SS |
211 | |
212 | return SIM_RC_OK; | |
213 | } | |
214 | ||
215 | /* PROFILE_CPU_CALLBACK */ | |
216 | ||
217 | static void | |
218 | print_m32r_misc_cpu (SIM_CPU *cpu, int verbose) | |
219 | { | |
220 | SIM_DESC sd = CPU_STATE (cpu); | |
221 | char buf[20]; | |
222 | ||
223 | if (CPU_PROFILE_FLAGS (cpu) [PROFILE_INSN_IDX]) | |
224 | { | |
225 | sim_io_printf (sd, "Miscellaneous Statistics\n\n"); | |
226 | sim_io_printf (sd, " %-*s %s\n\n", | |
227 | PROFILE_LABEL_WIDTH, "Fill nops:", | |
228 | sim_add_commas (buf, sizeof (buf), | |
229 | CPU_M32R_MISC_PROFILE (cpu)->fillnop_count)); | |
2df3850c JM |
230 | if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32rx) |
231 | sim_io_printf (sd, " %-*s %s\n\n", | |
232 | PROFILE_LABEL_WIDTH, "Parallel insns:", | |
233 | sim_add_commas (buf, sizeof (buf), | |
234 | CPU_M32R_MISC_PROFILE (cpu)->parallel_count)); | |
16b47b25 NC |
235 | if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32r2) |
236 | sim_io_printf (sd, " %-*s %s\n\n", | |
237 | PROFILE_LABEL_WIDTH, "Parallel insns:", | |
238 | sim_add_commas (buf, sizeof (buf), | |
239 | CPU_M32R_MISC_PROFILE (cpu)->parallel_count)); | |
c906108c SS |
240 | } |
241 | } |