/* Main simulator entry points specific to the IQ2000. Copyright (C) 2000-2015 Free Software Foundation, Inc. Contributed by Cygnus Solutions. This file is part of the GNU simulators. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "sim-main.h" #ifdef HAVE_STDLIB_H #include <stdlib.h> #endif #include "sim-options.h" #include "libiberty.h" #include "bfd.h" static void free_state (SIM_DESC); /* Records simulator descriptor so utilities like iq2000_dump_regs can be called from gdb. */ SIM_DESC current_state; /* Cover function for sim_cgen_disassemble_insn. */ void iq2000bf_disassemble_insn (SIM_CPU *cpu, const CGEN_INSN *insn, const ARGBUF *abuf, IADDR pc, char *buf) { sim_cgen_disassemble_insn(cpu, insn, abuf, pc, buf); } /* Cover function of sim_state_free to free the cpu buffers as well. */ static void free_state (SIM_DESC sd) { if (STATE_MODULES (sd) != NULL) sim_module_uninstall (sd); sim_cpu_free_all (sd); sim_state_free (sd); } /* Create an instance of the simulator. */ SIM_DESC sim_open (kind, callback, abfd, argv) SIM_OPEN_KIND kind; host_callback *callback; struct bfd *abfd; char **argv; { char c; int i; SIM_DESC sd = sim_state_alloc (kind, callback); /* The cpu data is kept in a separately allocated chunk of memory. */ if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK) { free_state (sd); return 0; } #if 0 /* FIXME: pc is in mach-specific struct */ /* FIXME: watchpoints code shouldn't need this */ { SIM_CPU *current_cpu = STATE_CPU (sd, 0); STATE_WATCHPOINTS (sd)->pc = &(PC); STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC); } #endif if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) { free_state (sd); return 0; } #if 0 /* FIXME: 'twould be nice if we could do this */ /* These options override any module options. Obviously ambiguity should be avoided, however the caller may wish to augment the meaning of an option. */ if (extra_options != NULL) sim_add_option_table (sd, extra_options); #endif /* getopt will print the error message so we just have to exit if this fails. FIXME: Hmmm... in the case of gdb we need getopt to call print_filtered. */ if (sim_parse_args (sd, argv) != SIM_RC_OK) { free_state (sd); return 0; } /* Allocate core managed memory. */ sim_do_commandf (sd, "memory region 0x%lx,0x%lx", IQ2000_INSN_VALUE, IQ2000_INSN_MEM_SIZE); sim_do_commandf (sd, "memory region 0x%lx,0x%lx", IQ2000_DATA_VALUE, IQ2000_DATA_MEM_SIZE); /* check for/establish the reference program image */ if (sim_analyze_program (sd, (STATE_PROG_ARGV (sd) != NULL ? *STATE_PROG_ARGV (sd) : NULL), abfd) != SIM_RC_OK) { free_state (sd); return 0; } /* Establish any remaining configuration options. */ if (sim_config (sd) != SIM_RC_OK) { free_state (sd); return 0; } if (sim_post_argv_init (sd) != SIM_RC_OK) { free_state (sd); return 0; } /* Open a copy of the cpu descriptor table. */ { CGEN_CPU_DESC cd = iq2000_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, CGEN_ENDIAN_BIG); for (i = 0; i < MAX_NR_PROCESSORS; ++i) { SIM_CPU *cpu = STATE_CPU (sd, i); CPU_CPU_DESC (cpu) = cd; CPU_DISASSEMBLER (cpu) = iq2000bf_disassemble_insn; } iq2000_cgen_init_dis (cd); } /* Initialize various cgen things not done by common framework. Must be done after iq2000_cgen_cpu_open. */ cgen_init (sd); /* Store in a global so things like sparc32_dump_regs can be invoked from the gdb command line. */ current_state = sd; return sd; } void sim_close (sd, quitting) SIM_DESC sd; int quitting; { iq2000_cgen_cpu_close (CPU_CPU_DESC (STATE_CPU (sd, 0))); sim_module_uninstall (sd); } SIM_RC sim_create_inferior (sd, abfd, argv, envp) SIM_DESC sd; struct bfd *abfd; char **argv; char **envp; { SIM_CPU *current_cpu = STATE_CPU (sd, 0); SIM_ADDR addr; if (abfd != NULL) addr = bfd_get_start_address (abfd); else addr = CPU2INSN(0); sim_pc_set (current_cpu, addr); #if 0 STATE_ARGV (sd) = sim_copy_argv (argv); STATE_ENVP (sd) = sim_copy_argv (envp); #endif return SIM_RC_OK; }