Commit | Line | Data |
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c906108c | 1 | /* Main simulator entry points specific to the M32R. |
3666a048 | 2 | Copyright (C) 1996-2021 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 | ||
c906108c | 25 | #include <string.h> |
c906108c | 26 | #include <stdlib.h> |
c906108c | 27 | |
9c0c156b MF |
28 | #include "dv-m32r_uart.h" |
29 | ||
c906108c SS |
30 | static void free_state (SIM_DESC); |
31 | static void print_m32r_misc_cpu (SIM_CPU *cpu, int verbose); | |
c906108c SS |
32 | \f |
33 | /* Cover function of sim_state_free to free the cpu buffers as well. */ | |
34 | ||
35 | static void | |
36 | free_state (SIM_DESC sd) | |
37 | { | |
38 | if (STATE_MODULES (sd) != NULL) | |
39 | sim_module_uninstall (sd); | |
40 | sim_cpu_free_all (sd); | |
41 | sim_state_free (sd); | |
42 | } | |
43 | ||
44 | /* Create an instance of the simulator. */ | |
45 | ||
46 | SIM_DESC | |
81e6e8ae TT |
47 | sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct bfd *abfd, |
48 | char * const *argv) | |
c906108c SS |
49 | { |
50 | SIM_DESC sd = sim_state_alloc (kind, callback); | |
51 | char c; | |
52 | int i; | |
53 | ||
54 | /* The cpu data is kept in a separately allocated chunk of memory. */ | |
d5a71b11 | 55 | if (sim_cpu_alloc_all (sd, 1) != SIM_RC_OK) |
c906108c SS |
56 | { |
57 | free_state (sd); | |
58 | return 0; | |
59 | } | |
60 | ||
c906108c SS |
61 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) |
62 | { | |
63 | free_state (sd); | |
64 | return 0; | |
65 | } | |
66 | ||
77cf2ef5 | 67 | /* The parser will print an error message for us, so we silently return. */ |
c906108c SS |
68 | if (sim_parse_args (sd, argv) != SIM_RC_OK) |
69 | { | |
70 | free_state (sd); | |
71 | return 0; | |
72 | } | |
73 | ||
74 | /* Allocate a handler for the control registers and other devices | |
75 | if no memory for that range has been allocated by the user. | |
76 | All are allocated in one chunk to keep things from being | |
9c0c156b MF |
77 | unnecessarily complicated. |
78 | TODO: Move these to the sim-model framework. */ | |
79 | sim_hw_parse (sd, "/core/%s/reg %#x %i", "m32r_uart", UART_BASE_ADDR, 0x100); | |
80 | sim_hw_parse (sd, "/core/%s/reg %#x %i", "m32r_cache", 0xfffffff0, 0x10); | |
c906108c SS |
81 | |
82 | /* Allocate core managed memory if none specified by user. | |
83 | Use address 4 here in case the user wanted address 0 unmapped. */ | |
84 | if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0) | |
85 | sim_do_commandf (sd, "memory region 0,0x%x", M32R_DEFAULT_MEM_SIZE); | |
86 | ||
87 | /* check for/establish the reference program image */ | |
88 | if (sim_analyze_program (sd, | |
89 | (STATE_PROG_ARGV (sd) != NULL | |
90 | ? *STATE_PROG_ARGV (sd) | |
91 | : NULL), | |
92 | abfd) != SIM_RC_OK) | |
93 | { | |
94 | free_state (sd); | |
95 | return 0; | |
96 | } | |
97 | ||
98 | /* Establish any remaining configuration options. */ | |
99 | if (sim_config (sd) != SIM_RC_OK) | |
100 | { | |
101 | free_state (sd); | |
102 | return 0; | |
103 | } | |
104 | ||
105 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
106 | { | |
107 | free_state (sd); | |
108 | return 0; | |
109 | } | |
110 | ||
111 | /* Open a copy of the cpu descriptor table. */ | |
112 | { | |
7a292a7a SS |
113 | CGEN_CPU_DESC cd = m32r_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, |
114 | CGEN_ENDIAN_BIG); | |
c906108c SS |
115 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) |
116 | { | |
117 | SIM_CPU *cpu = STATE_CPU (sd, i); | |
118 | CPU_CPU_DESC (cpu) = cd; | |
119 | CPU_DISASSEMBLER (cpu) = sim_cgen_disassemble_insn; | |
120 | } | |
121 | m32r_cgen_init_dis (cd); | |
122 | } | |
123 | ||
124 | /* Initialize various cgen things not done by common framework. | |
125 | Must be done after m32r_cgen_cpu_open. */ | |
126 | cgen_init (sd); | |
127 | ||
128 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
129 | { | |
130 | /* Only needed for profiling, but the structure member is small. */ | |
131 | memset (CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i)), 0, | |
132 | sizeof (* CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i)))); | |
133 | /* Hook in callback for reporting these stats */ | |
134 | PROFILE_INFO_CPU_CALLBACK (CPU_PROFILE_DATA (STATE_CPU (sd, i))) | |
135 | = print_m32r_misc_cpu; | |
136 | } | |
137 | ||
c906108c SS |
138 | return sd; |
139 | } | |
c906108c SS |
140 | \f |
141 | SIM_RC | |
81e6e8ae TT |
142 | sim_create_inferior (SIM_DESC sd, struct bfd *abfd, char * const *argv, |
143 | char * const *envp) | |
c906108c SS |
144 | { |
145 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
146 | SIM_ADDR addr; | |
147 | ||
148 | if (abfd != NULL) | |
149 | addr = bfd_get_start_address (abfd); | |
150 | else | |
151 | addr = 0; | |
152 | sim_pc_set (current_cpu, addr); | |
153 | ||
6edf0760 NC |
154 | #ifdef M32R_LINUX |
155 | m32rbf_h_cr_set (current_cpu, | |
156 | m32r_decode_gdb_ctrl_regnum(SPI_REGNUM), 0x1f00000); | |
157 | m32rbf_h_cr_set (current_cpu, | |
158 | m32r_decode_gdb_ctrl_regnum(SPU_REGNUM), 0x1f00000); | |
159 | #endif | |
160 | ||
0e967299 MF |
161 | /* Standalone mode (i.e. `run`) will take care of the argv for us in |
162 | sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim' | |
163 | with `gdb`), we need to handle it because the user can change the | |
164 | argv on the fly via gdb's 'run'. */ | |
165 | if (STATE_PROG_ARGV (sd) != argv) | |
166 | { | |
167 | freeargv (STATE_PROG_ARGV (sd)); | |
168 | STATE_PROG_ARGV (sd) = dupargv (argv); | |
169 | } | |
c906108c SS |
170 | |
171 | return SIM_RC_OK; | |
172 | } | |
173 | ||
174 | /* PROFILE_CPU_CALLBACK */ | |
175 | ||
176 | static void | |
177 | print_m32r_misc_cpu (SIM_CPU *cpu, int verbose) | |
178 | { | |
179 | SIM_DESC sd = CPU_STATE (cpu); | |
180 | char buf[20]; | |
181 | ||
182 | if (CPU_PROFILE_FLAGS (cpu) [PROFILE_INSN_IDX]) | |
183 | { | |
184 | sim_io_printf (sd, "Miscellaneous Statistics\n\n"); | |
185 | sim_io_printf (sd, " %-*s %s\n\n", | |
186 | PROFILE_LABEL_WIDTH, "Fill nops:", | |
187 | sim_add_commas (buf, sizeof (buf), | |
188 | CPU_M32R_MISC_PROFILE (cpu)->fillnop_count)); | |
2df3850c JM |
189 | if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32rx) |
190 | sim_io_printf (sd, " %-*s %s\n\n", | |
191 | PROFILE_LABEL_WIDTH, "Parallel insns:", | |
192 | sim_add_commas (buf, sizeof (buf), | |
193 | CPU_M32R_MISC_PROFILE (cpu)->parallel_count)); | |
16b47b25 NC |
194 | if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32r2) |
195 | sim_io_printf (sd, " %-*s %s\n\n", | |
196 | PROFILE_LABEL_WIDTH, "Parallel insns:", | |
197 | sim_add_commas (buf, sizeof (buf), | |
198 | CPU_M32R_MISC_PROFILE (cpu)->parallel_count)); | |
c906108c SS |
199 | } |
200 | } |