1 /* Main simulator entry points specific to the FRV.
2 Copyright (C) 1998-2016 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/>. */
21 #define WANT_CPU_FRVBF
26 #include "sim-options.h"
27 #include "libiberty.h"
31 static void free_state (SIM_DESC
);
32 static void print_frv_misc_cpu (SIM_CPU
*cpu
, int verbose
);
34 /* Records simulator descriptor so utilities like frv_dump_regs can be
36 SIM_DESC current_state
;
38 /* Cover function of sim_state_free to free the cpu buffers as well. */
41 free_state (SIM_DESC sd
)
43 if (STATE_MODULES (sd
) != NULL
)
44 sim_module_uninstall (sd
);
45 sim_cpu_free_all (sd
);
49 /* Create an instance of the simulator. */
52 sim_open (kind
, callback
, abfd
, argv
)
54 host_callback
*callback
;
60 unsigned long elf_flags
= 0;
61 SIM_DESC sd
= sim_state_alloc (kind
, callback
);
63 /* The cpu data is kept in a separately allocated chunk of memory. */
64 if (sim_cpu_alloc_all (sd
, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK
)
70 #if 0 /* FIXME: pc is in mach-specific struct */
71 /* FIXME: watchpoints code shouldn't need this */
73 SIM_CPU
*current_cpu
= STATE_CPU (sd
, 0);
74 STATE_WATCHPOINTS (sd
)->pc
= &(PC
);
75 STATE_WATCHPOINTS (sd
)->sizeof_pc
= sizeof (PC
);
79 if (sim_pre_argv_init (sd
, argv
[0]) != SIM_RC_OK
)
85 /* These options override any module options.
86 Obviously ambiguity should be avoided, however the caller may wish to
87 augment the meaning of an option. */
88 sim_add_option_table (sd
, NULL
, frv_options
);
90 /* getopt will print the error message so we just have to exit if this fails.
91 FIXME: Hmmm... in the case of gdb we need getopt to call
93 if (sim_parse_args (sd
, argv
) != SIM_RC_OK
)
99 /* Allocate core managed memory if none specified by user.
100 Use address 4 here in case the user wanted address 0 unmapped. */
101 if (sim_core_read_buffer (sd
, NULL
, read_map
, &c
, 4, 1) == 0)
102 sim_do_commandf (sd
, "memory region 0,0x%lx", FRV_DEFAULT_MEM_SIZE
);
104 /* check for/establish the reference program image */
105 if (sim_analyze_program (sd
,
106 (STATE_PROG_ARGV (sd
) != NULL
107 ? *STATE_PROG_ARGV (sd
)
115 /* set machine and architecture correctly instead of defaulting to frv */
117 bfd
*prog_bfd
= STATE_PROG_BFD (sd
);
118 if (prog_bfd
!= NULL
)
120 struct elf_backend_data
*backend_data
;
122 if (bfd_get_arch (prog_bfd
) != bfd_arch_frv
)
124 sim_io_eprintf (sd
, "%s: \"%s\" is not a FRV object file\n",
126 bfd_get_filename (prog_bfd
));
131 backend_data
= get_elf_backend_data (prog_bfd
);
133 if (backend_data
!= NULL
)
134 backend_data
->elf_backend_object_p (prog_bfd
);
136 elf_flags
= elf_elfheader (prog_bfd
)->e_flags
;
140 /* Establish any remaining configuration options. */
141 if (sim_config (sd
) != SIM_RC_OK
)
147 if (sim_post_argv_init (sd
) != SIM_RC_OK
)
153 /* Open a copy of the cpu descriptor table. */
155 CGEN_CPU_DESC cd
= frv_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd
)->printable_name
,
157 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
159 SIM_CPU
*cpu
= STATE_CPU (sd
, i
);
160 CPU_CPU_DESC (cpu
) = cd
;
161 CPU_DISASSEMBLER (cpu
) = sim_cgen_disassemble_insn
;
162 CPU_ELF_FLAGS (cpu
) = elf_flags
;
164 frv_cgen_init_dis (cd
);
167 /* Initialize various cgen things not done by common framework.
168 Must be done after frv_cgen_cpu_open. */
171 /* CPU specific initialization. */
172 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
174 SIM_CPU
* cpu
= STATE_CPU (sd
, i
);
175 frv_initialize (cpu
, sd
);
178 /* Store in a global so things like sparc32_dump_regs can be invoked
179 from the gdb command line. */
186 frv_sim_close (sd
, quitting
)
191 /* Terminate cache support. */
192 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
194 SIM_CPU
* cpu
= STATE_CPU (sd
, i
);
195 frv_cache_term (CPU_INSN_CACHE (cpu
));
196 frv_cache_term (CPU_DATA_CACHE (cpu
));
201 sim_create_inferior (sd
, abfd
, argv
, envp
)
207 SIM_CPU
*current_cpu
= STATE_CPU (sd
, 0);
211 addr
= bfd_get_start_address (abfd
);
214 sim_pc_set (current_cpu
, addr
);
216 /* Standalone mode (i.e. `run`) will take care of the argv for us in
217 sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim'
218 with `gdb`), we need to handle it because the user can change the
219 argv on the fly via gdb's 'run'. */
220 if (STATE_PROG_ARGV (sd
) != argv
)
222 freeargv (STATE_PROG_ARGV (sd
));
223 STATE_PROG_ARGV (sd
) = dupargv (argv
);