1 /* Main simulator entry points specific to the M32R.
2 Copyright (C) 1996-2015 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB, the GNU debugger.
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
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
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.
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/>. */
21 #include "sim-options.h"
22 #include "libiberty.h"
36 static void free_state (SIM_DESC
);
37 static void print_m32r_misc_cpu (SIM_CPU
*cpu
, int verbose
);
39 /* Records simulator descriptor so utilities like m32r_dump_regs can be
41 SIM_DESC current_state
;
43 /* Cover function of sim_state_free to free the cpu buffers as well. */
46 free_state (SIM_DESC sd
)
48 if (STATE_MODULES (sd
) != NULL
)
49 sim_module_uninstall (sd
);
50 sim_cpu_free_all (sd
);
54 /* Create an instance of the simulator. */
57 sim_open (kind
, callback
, abfd
, argv
)
59 host_callback
*callback
;
63 SIM_DESC sd
= sim_state_alloc (kind
, callback
);
67 /* The cpu data is kept in a separately allocated chunk of memory. */
68 if (sim_cpu_alloc_all (sd
, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK
)
74 #if 0 /* FIXME: pc is in mach-specific struct */
75 /* FIXME: watchpoints code shouldn't need this */
77 SIM_CPU
*current_cpu
= STATE_CPU (sd
, 0);
78 STATE_WATCHPOINTS (sd
)->pc
= &(PC
);
79 STATE_WATCHPOINTS (sd
)->sizeof_pc
= sizeof (PC
);
83 if (sim_pre_argv_init (sd
, argv
[0]) != SIM_RC_OK
)
89 #if 0 /* FIXME: 'twould be nice if we could do this */
90 /* These options override any module options.
91 Obviously ambiguity should be avoided, however the caller may wish to
92 augment the meaning of an option. */
93 if (extra_options
!= NULL
)
94 sim_add_option_table (sd
, extra_options
);
97 /* getopt will print the error message so we just have to exit if this fails.
98 FIXME: Hmmm... in the case of gdb we need getopt to call
100 if (sim_parse_args (sd
, argv
) != SIM_RC_OK
)
106 /* Allocate a handler for the control registers and other devices
107 if no memory for that range has been allocated by the user.
108 All are allocated in one chunk to keep things from being
109 unnecessarily complicated. */
110 if (sim_core_read_buffer (sd
, NULL
, read_map
, &c
, M32R_DEVICE_ADDR
, 1) == 0)
111 sim_core_attach (sd
, NULL
,
115 M32R_DEVICE_ADDR
, M32R_DEVICE_LEN
/*nr_bytes*/,
120 /* Allocate core managed memory if none specified by user.
121 Use address 4 here in case the user wanted address 0 unmapped. */
122 if (sim_core_read_buffer (sd
, NULL
, read_map
, &c
, 4, 1) == 0)
123 sim_do_commandf (sd
, "memory region 0,0x%x", M32R_DEFAULT_MEM_SIZE
);
125 /* check for/establish the reference program image */
126 if (sim_analyze_program (sd
,
127 (STATE_PROG_ARGV (sd
) != NULL
128 ? *STATE_PROG_ARGV (sd
)
136 /* Establish any remaining configuration options. */
137 if (sim_config (sd
) != SIM_RC_OK
)
143 if (sim_post_argv_init (sd
) != SIM_RC_OK
)
149 /* Open a copy of the cpu descriptor table. */
151 CGEN_CPU_DESC cd
= m32r_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd
)->printable_name
,
153 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
155 SIM_CPU
*cpu
= STATE_CPU (sd
, i
);
156 CPU_CPU_DESC (cpu
) = cd
;
157 CPU_DISASSEMBLER (cpu
) = sim_cgen_disassemble_insn
;
159 m32r_cgen_init_dis (cd
);
162 /* Initialize various cgen things not done by common framework.
163 Must be done after m32r_cgen_cpu_open. */
166 for (c
= 0; c
< MAX_NR_PROCESSORS
; ++c
)
168 /* Only needed for profiling, but the structure member is small. */
169 memset (CPU_M32R_MISC_PROFILE (STATE_CPU (sd
, i
)), 0,
170 sizeof (* CPU_M32R_MISC_PROFILE (STATE_CPU (sd
, i
))));
171 /* Hook in callback for reporting these stats */
172 PROFILE_INFO_CPU_CALLBACK (CPU_PROFILE_DATA (STATE_CPU (sd
, i
)))
173 = print_m32r_misc_cpu
;
176 /* Store in a global so things like sparc32_dump_regs can be invoked
177 from the gdb command line. */
184 sim_close (sd
, quitting
)
188 m32r_cgen_cpu_close (CPU_CPU_DESC (STATE_CPU (sd
, 0)));
189 sim_module_uninstall (sd
);
193 sim_create_inferior (sd
, abfd
, argv
, envp
)
199 SIM_CPU
*current_cpu
= STATE_CPU (sd
, 0);
203 addr
= bfd_get_start_address (abfd
);
206 sim_pc_set (current_cpu
, addr
);
209 m32rbf_h_cr_set (current_cpu
,
210 m32r_decode_gdb_ctrl_regnum(SPI_REGNUM
), 0x1f00000);
211 m32rbf_h_cr_set (current_cpu
,
212 m32r_decode_gdb_ctrl_regnum(SPU_REGNUM
), 0x1f00000);
216 STATE_ARGV (sd
) = sim_copy_argv (argv
);
217 STATE_ENVP (sd
) = sim_copy_argv (envp
);
223 /* PROFILE_CPU_CALLBACK */
226 print_m32r_misc_cpu (SIM_CPU
*cpu
, int verbose
)
228 SIM_DESC sd
= CPU_STATE (cpu
);
231 if (CPU_PROFILE_FLAGS (cpu
) [PROFILE_INSN_IDX
])
233 sim_io_printf (sd
, "Miscellaneous Statistics\n\n");
234 sim_io_printf (sd
, " %-*s %s\n\n",
235 PROFILE_LABEL_WIDTH
, "Fill nops:",
236 sim_add_commas (buf
, sizeof (buf
),
237 CPU_M32R_MISC_PROFILE (cpu
)->fillnop_count
));
238 if (STATE_ARCHITECTURE (sd
)->mach
== bfd_mach_m32rx
)
239 sim_io_printf (sd
, " %-*s %s\n\n",
240 PROFILE_LABEL_WIDTH
, "Parallel insns:",
241 sim_add_commas (buf
, sizeof (buf
),
242 CPU_M32R_MISC_PROFILE (cpu
)->parallel_count
));
243 if (STATE_ARCHITECTURE (sd
)->mach
== bfd_mach_m32r2
)
244 sim_io_printf (sd
, " %-*s %s\n\n",
245 PROFILE_LABEL_WIDTH
, "Parallel insns:",
246 sim_add_commas (buf
, sizeof (buf
),
247 CPU_M32R_MISC_PROFILE (cpu
)->parallel_count
));