1 /* Main simulator entry points specific to the FRV.
2 Copyright (C) 1998-2022 Free Software Foundation, Inc.
3 Contributed by Red Hat.
5 This file is part of the GNU simulators.
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/>. */
20 /* This must come before any other includes. */
24 #define WANT_CPU_FRVBF
27 #include "sim-options.h"
28 #include "libiberty.h"
32 static void free_state (SIM_DESC
);
34 /* Cover function of sim_state_free to free the cpu buffers as well. */
37 free_state (SIM_DESC sd
)
39 if (STATE_MODULES (sd
) != NULL
)
40 sim_module_uninstall (sd
);
41 sim_cpu_free_all (sd
);
45 extern const SIM_MACH
* const frv_sim_machs
[];
47 /* Create an instance of the simulator. */
50 sim_open (SIM_OPEN_KIND kind
, host_callback
*callback
, bfd
*abfd
,
55 unsigned long elf_flags
= 0;
56 SIM_DESC sd
= sim_state_alloc (kind
, callback
);
58 /* Set default options before parsing user options. */
59 STATE_MACHS (sd
) = frv_sim_machs
;
60 STATE_MODEL_NAME (sd
) = "fr500";
61 current_alignment
= STRICT_ALIGNMENT
;
62 current_target_byte_order
= BFD_ENDIAN_BIG
;
64 /* The cpu data is kept in a separately allocated chunk of memory. */
65 if (sim_cpu_alloc_all (sd
, 1) != SIM_RC_OK
)
71 if (sim_pre_argv_init (sd
, argv
[0]) != SIM_RC_OK
)
77 /* These options override any module options.
78 Obviously ambiguity should be avoided, however the caller may wish to
79 augment the meaning of an option. */
80 sim_add_option_table (sd
, NULL
, frv_options
);
82 /* The parser will print an error message for us, so we silently return. */
83 if (sim_parse_args (sd
, argv
) != SIM_RC_OK
)
89 /* Allocate core managed memory if none specified by user.
90 Use address 4 here in case the user wanted address 0 unmapped. */
91 if (sim_core_read_buffer (sd
, NULL
, read_map
, &c
, 4, 1) == 0)
92 sim_do_commandf (sd
, "memory region 0,0x%x", FRV_DEFAULT_MEM_SIZE
);
94 /* check for/establish the reference program image */
95 if (sim_analyze_program (sd
,
96 (STATE_PROG_ARGV (sd
) != NULL
97 ? *STATE_PROG_ARGV (sd
)
105 /* set machine and architecture correctly instead of defaulting to frv */
107 bfd
*prog_bfd
= STATE_PROG_BFD (sd
);
108 if (prog_bfd
!= NULL
)
110 const struct elf_backend_data
*backend_data
;
112 if (bfd_get_arch (prog_bfd
) != bfd_arch_frv
)
114 sim_io_eprintf (sd
, "%s: \"%s\" is not a FRV object file\n",
116 bfd_get_filename (prog_bfd
));
121 backend_data
= get_elf_backend_data (prog_bfd
);
123 if (backend_data
!= NULL
)
124 backend_data
->elf_backend_object_p (prog_bfd
);
126 elf_flags
= elf_elfheader (prog_bfd
)->e_flags
;
130 /* Establish any remaining configuration options. */
131 if (sim_config (sd
) != SIM_RC_OK
)
137 if (sim_post_argv_init (sd
) != SIM_RC_OK
)
143 /* Open a copy of the cpu descriptor table. */
145 CGEN_CPU_DESC cd
= frv_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd
)->printable_name
,
147 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
149 SIM_CPU
*cpu
= STATE_CPU (sd
, i
);
150 CPU_CPU_DESC (cpu
) = cd
;
151 CPU_DISASSEMBLER (cpu
) = sim_cgen_disassemble_insn
;
152 CPU_ELF_FLAGS (cpu
) = elf_flags
;
154 frv_cgen_init_dis (cd
);
157 /* CPU specific initialization. */
158 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
160 SIM_CPU
* cpu
= STATE_CPU (sd
, i
);
161 frv_initialize (cpu
, sd
);
168 frv_sim_close (SIM_DESC sd
, int quitting
)
171 /* Terminate cache support. */
172 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
174 SIM_CPU
* cpu
= STATE_CPU (sd
, i
);
175 frv_cache_term (CPU_INSN_CACHE (cpu
));
176 frv_cache_term (CPU_DATA_CACHE (cpu
));
181 sim_create_inferior (SIM_DESC sd
, bfd
*abfd
, char * const *argv
,
184 SIM_CPU
*current_cpu
= STATE_CPU (sd
, 0);
188 addr
= bfd_get_start_address (abfd
);
191 sim_pc_set (current_cpu
, addr
);
193 /* Standalone mode (i.e. `run`) will take care of the argv for us in
194 sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim'
195 with `gdb`), we need to handle it because the user can change the
196 argv on the fly via gdb's 'run'. */
197 if (STATE_PROG_ARGV (sd
) != argv
)
199 freeargv (STATE_PROG_ARGV (sd
));
200 STATE_PROG_ARGV (sd
) = dupargv (argv
);