1 /* Main simulator entry points specific to the M32R.
2 Copyright (C) 1996, 1997, 1998, 1999, 2003, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
6 This file is part of GDB, the GNU debugger.
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
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
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.
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/>. */
22 #include "sim-options.h"
23 #include "libiberty.h"
37 static void free_state (SIM_DESC);
38 static void print_m32r_misc_cpu (SIM_CPU *cpu, int verbose);
40 /* Records simulator descriptor so utilities like m32r_dump_regs can be
42 SIM_DESC current_state;
44 /* Cover function of sim_state_free to free the cpu buffers as well. */
47 free_state (SIM_DESC sd)
49 if (STATE_MODULES (sd) != NULL)
50 sim_module_uninstall (sd);
51 sim_cpu_free_all (sd);
55 /* Create an instance of the simulator. */
58 sim_open (kind, callback, abfd, argv)
60 host_callback *callback;
64 SIM_DESC sd = sim_state_alloc (kind, callback);
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)
75 #if 0 /* FIXME: pc is in mach-specific struct */
76 /* FIXME: watchpoints code shouldn't need this */
78 SIM_CPU *current_cpu = STATE_CPU (sd, 0);
79 STATE_WATCHPOINTS (sd)->pc = &(PC);
80 STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC);
84 if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
90 #ifdef HAVE_DV_SOCKSER /* FIXME: was done differently before */
91 if (dv_sockser_install (sd) != SIM_RC_OK)
98 #if 0 /* FIXME: 'twould be nice if we could do this */
99 /* These options override any module options.
100 Obviously ambiguity should be avoided, however the caller may wish to
101 augment the meaning of an option. */
102 if (extra_options != NULL)
103 sim_add_option_table (sd, extra_options);
106 /* getopt will print the error message so we just have to exit if this fails.
107 FIXME: Hmmm... in the case of gdb we need getopt to call
109 if (sim_parse_args (sd, argv) != SIM_RC_OK)
115 /* Allocate a handler for the control registers and other devices
116 if no memory for that range has been allocated by the user.
117 All are allocated in one chunk to keep things from being
118 unnecessarily complicated. */
119 if (sim_core_read_buffer (sd, NULL, read_map, &c, M32R_DEVICE_ADDR, 1) == 0)
120 sim_core_attach (sd, NULL,
124 M32R_DEVICE_ADDR, M32R_DEVICE_LEN /*nr_bytes*/,
129 /* Allocate core managed memory if none specified by user.
130 Use address 4 here in case the user wanted address 0 unmapped. */
131 if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0)
132 sim_do_commandf (sd, "memory region 0,0x%x", M32R_DEFAULT_MEM_SIZE);
134 /* check for/establish the reference program image */
135 if (sim_analyze_program (sd,
136 (STATE_PROG_ARGV (sd) != NULL
137 ? *STATE_PROG_ARGV (sd)
145 /* Establish any remaining configuration options. */
146 if (sim_config (sd) != SIM_RC_OK)
152 if (sim_post_argv_init (sd) != SIM_RC_OK)
158 /* Open a copy of the cpu descriptor table. */
160 CGEN_CPU_DESC cd = m32r_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name,
162 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
164 SIM_CPU *cpu = STATE_CPU (sd, i);
165 CPU_CPU_DESC (cpu) = cd;
166 CPU_DISASSEMBLER (cpu) = sim_cgen_disassemble_insn;
168 m32r_cgen_init_dis (cd);
171 /* Initialize various cgen things not done by common framework.
172 Must be done after m32r_cgen_cpu_open. */
175 for (c = 0; c < MAX_NR_PROCESSORS; ++c)
177 /* Only needed for profiling, but the structure member is small. */
178 memset (CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i)), 0,
179 sizeof (* CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i))));
180 /* Hook in callback for reporting these stats */
181 PROFILE_INFO_CPU_CALLBACK (CPU_PROFILE_DATA (STATE_CPU (sd, i)))
182 = print_m32r_misc_cpu;
185 /* Store in a global so things like sparc32_dump_regs can be invoked
186 from the gdb command line. */
193 sim_close (sd, quitting)
197 m32r_cgen_cpu_close (CPU_CPU_DESC (STATE_CPU (sd, 0)));
198 sim_module_uninstall (sd);
202 sim_create_inferior (sd, abfd, argv, envp)
208 SIM_CPU *current_cpu = STATE_CPU (sd, 0);
212 addr = bfd_get_start_address (abfd);
215 sim_pc_set (current_cpu, addr);
218 m32rbf_h_cr_set (current_cpu,
219 m32r_decode_gdb_ctrl_regnum(SPI_REGNUM), 0x1f00000);
220 m32rbf_h_cr_set (current_cpu,
221 m32r_decode_gdb_ctrl_regnum(SPU_REGNUM), 0x1f00000);
225 STATE_ARGV (sd) = sim_copy_argv (argv);
226 STATE_ENVP (sd) = sim_copy_argv (envp);
232 /* PROFILE_CPU_CALLBACK */
235 print_m32r_misc_cpu (SIM_CPU *cpu, int verbose)
237 SIM_DESC sd = CPU_STATE (cpu);
240 if (CPU_PROFILE_FLAGS (cpu) [PROFILE_INSN_IDX])
242 sim_io_printf (sd, "Miscellaneous Statistics\n\n");
243 sim_io_printf (sd, " %-*s %s\n\n",
244 PROFILE_LABEL_WIDTH, "Fill nops:",
245 sim_add_commas (buf, sizeof (buf),
246 CPU_M32R_MISC_PROFILE (cpu)->fillnop_count));
247 if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32rx)
248 sim_io_printf (sd, " %-*s %s\n\n",
249 PROFILE_LABEL_WIDTH, "Parallel insns:",
250 sim_add_commas (buf, sizeof (buf),
251 CPU_M32R_MISC_PROFILE (cpu)->parallel_count));
252 if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32r2)
253 sim_io_printf (sd, " %-*s %s\n\n",
254 PROFILE_LABEL_WIDTH, "Parallel insns:",
255 sim_add_commas (buf, sizeof (buf),
256 CPU_M32R_MISC_PROFILE (cpu)->parallel_count));
261 sim_do_command (sd, cmd)
270 argv = buildargv (cmd);
273 && strcasecmp (argv[0], "info") == 0
275 && strncasecmp (argv[1], "reg", 3) == 0)
279 /* We only support printing bbpsw,bbpc here as there is no equivalent
280 functionality in gdb. */
282 sim_io_eprintf (sd, "Missing register in `%s'\n", cmd);
283 else if (argv[3] != NULL)
284 sim_io_eprintf (sd, "Too many arguments in `%s'\n", cmd);
285 else if (strcasecmp (argv[2], "bbpsw") == 0)
287 val = m32rbf_h_cr_get (STATE_CPU (sd, 0), H_CR_BBPSW);
288 sim_io_printf (sd, "bbpsw 0x%x %d\n", val, val);
290 else if (strcasecmp (argv[2], "bbpc") == 0)
292 val = m32rbf_h_cr_get (STATE_CPU (sd, 0), H_CR_BBPC);
293 sim_io_printf (sd, "bbpc 0x%x %d\n", val, val);
296 sim_io_eprintf (sd, "Printing of register `%s' not supported with `sim info'\n",
301 if (sim_args_command (sd, cmd) != SIM_RC_OK)
302 sim_io_eprintf (sd, "Unknown sim command `%s'\n", cmd);