1 /* Main simulator entry points specific to the FRV.
2 Copyright (C) 1998-2019 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 /* 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 /* Create an instance of the simulator. */
48 sim_open (kind, callback, abfd, argv)
50 host_callback *callback;
56 unsigned long elf_flags = 0;
57 SIM_DESC sd = sim_state_alloc (kind, callback);
59 /* The cpu data is kept in a separately allocated chunk of memory. */
60 if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK)
66 #if 0 /* FIXME: pc is in mach-specific struct */
67 /* FIXME: watchpoints code shouldn't need this */
69 SIM_CPU *current_cpu = STATE_CPU (sd, 0);
70 STATE_WATCHPOINTS (sd)->pc = &(PC);
71 STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC);
75 if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
81 /* These options override any module options.
82 Obviously ambiguity should be avoided, however the caller may wish to
83 augment the meaning of an option. */
84 sim_add_option_table (sd, NULL, frv_options);
86 /* The parser will print an error message for us, so we silently return. */
87 if (sim_parse_args (sd, argv) != SIM_RC_OK)
93 /* Allocate core managed memory if none specified by user.
94 Use address 4 here in case the user wanted address 0 unmapped. */
95 if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0)
96 sim_do_commandf (sd, "memory region 0,0x%lx", FRV_DEFAULT_MEM_SIZE);
98 /* check for/establish the reference program image */
99 if (sim_analyze_program (sd,
100 (STATE_PROG_ARGV (sd) != NULL
101 ? *STATE_PROG_ARGV (sd)
109 /* set machine and architecture correctly instead of defaulting to frv */
111 bfd *prog_bfd = STATE_PROG_BFD (sd);
112 if (prog_bfd != NULL)
114 struct elf_backend_data *backend_data;
116 if (bfd_get_arch (prog_bfd) != bfd_arch_frv)
118 sim_io_eprintf (sd, "%s: \"%s\" is not a FRV object file\n",
120 bfd_get_filename (prog_bfd));
125 backend_data = get_elf_backend_data (prog_bfd);
127 if (backend_data != NULL)
128 backend_data->elf_backend_object_p (prog_bfd);
130 elf_flags = elf_elfheader (prog_bfd)->e_flags;
134 /* Establish any remaining configuration options. */
135 if (sim_config (sd) != SIM_RC_OK)
141 if (sim_post_argv_init (sd) != SIM_RC_OK)
147 /* Open a copy of the cpu descriptor table. */
149 CGEN_CPU_DESC cd = frv_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name,
151 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
153 SIM_CPU *cpu = STATE_CPU (sd, i);
154 CPU_CPU_DESC (cpu) = cd;
155 CPU_DISASSEMBLER (cpu) = sim_cgen_disassemble_insn;
156 CPU_ELF_FLAGS (cpu) = elf_flags;
158 frv_cgen_init_dis (cd);
161 /* Initialize various cgen things not done by common framework.
162 Must be done after frv_cgen_cpu_open. */
165 /* CPU specific initialization. */
166 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
168 SIM_CPU* cpu = STATE_CPU (sd, i);
169 frv_initialize (cpu, sd);
176 frv_sim_close (sd, quitting)
181 /* Terminate cache support. */
182 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
184 SIM_CPU* cpu = STATE_CPU (sd, i);
185 frv_cache_term (CPU_INSN_CACHE (cpu));
186 frv_cache_term (CPU_DATA_CACHE (cpu));
191 sim_create_inferior (sd, abfd, argv, envp)
197 SIM_CPU *current_cpu = STATE_CPU (sd, 0);
201 addr = bfd_get_start_address (abfd);
204 sim_pc_set (current_cpu, addr);
206 /* Standalone mode (i.e. `run`) will take care of the argv for us in
207 sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim'
208 with `gdb`), we need to handle it because the user can change the
209 argv on the fly via gdb's 'run'. */
210 if (STATE_PROG_ARGV (sd) != argv)
212 freeargv (STATE_PROG_ARGV (sd));
213 STATE_PROG_ARGV (sd) = dupargv (argv);