/* This file is part of the program psim. Copyright (C) 1994-1996, Andrew Cagney Copyright (C) 1997, Free Software Foundation 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include "sim-main.h" #include "sim-options.h" #include "bfd.h" #include "sim-utils.h" #ifdef HAVE_STDLIB_H #include #endif static unsigned long extmem_size = 1024*1024*8; /* 8 meg is the maximum listed in the arch. manual */ static const char * get_insn_name (sim_cpu *, int); #define SIM_ADDR unsigned #define OPTION_TRACE_CALL 200 #define OPTION_TRACE_TRAPDUMP 201 #define OPTION_EXTMEM_SIZE 202 static SIM_RC d30v_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt, char *arg, int command_p) { char *suffix; switch (opt) { default: break; case OPTION_TRACE_CALL: if (arg == NULL || strcmp (arg, "yes") == 0 || strcmp (arg, "on") == 0) TRACE_CALL_P = 1; else if (strcmp (arg, "no") == 0 || strcmp (arg, "off") == 0) TRACE_CALL_P = 0; else { sim_io_eprintf (sd, "Unreconized --trace-call option `%s'\n", arg); return SIM_RC_FAIL; } return SIM_RC_OK; case OPTION_TRACE_TRAPDUMP: if (arg == NULL || strcmp (arg, "yes") == 0 || strcmp (arg, "on") == 0) TRACE_TRAP_P = 1; else if (strcmp (arg, "no") == 0 || strcmp (arg, "off") == 0) TRACE_TRAP_P = 0; else { sim_io_eprintf (sd, "Unreconized --trace-call option `%s'\n", arg); return SIM_RC_FAIL; } return SIM_RC_OK; case OPTION_EXTMEM_SIZE: if (arg == NULL || !isdigit (*arg)) { sim_io_eprintf (sd, "Invalid memory size `%s'", arg); return SIM_RC_FAIL; } suffix = arg; extmem_size = strtol (arg, &suffix, 0); if (*suffix == 'm' || *suffix == 'M') extmem_size <<= 20; else if (*suffix == 'k' || *suffix == 'K') extmem_size <<= 10; sim_do_commandf (sd, "memory delete 0x80000000"); sim_do_commandf (sd, "memory region 0x80000000,0x%lx", extmem_size); return SIM_RC_OK; } sim_io_eprintf (sd, "Unknown option (%d)\n", opt); return SIM_RC_FAIL; } static const OPTION d30v_options[] = { { {"trace-call", optional_argument, NULL, OPTION_TRACE_CALL}, '\0', "on|off", "Enable tracing of calls and returns, checking saved registers", d30v_option_handler }, { {"trace-trapdump", optional_argument, NULL, OPTION_TRACE_TRAPDUMP}, '\0', "on|off", #if TRAPDUMP "Traps 0..30 dump out all of the registers (defaults on)", #else "Traps 0..30 dump out all of the registers", #endif d30v_option_handler }, { {"extmem-size", required_argument, NULL, OPTION_EXTMEM_SIZE}, '\0', "size", "Change size of external memory, default 8 meg", d30v_option_handler }, { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL } }; /* Return name of an insn, used by insn profiling. */ static const char * get_insn_name (sim_cpu *cpu, int i) { return itable[i].name; } /* Structures used by the simulator, for gdb just have static structures */ SIM_DESC sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct _bfd *abfd, char **argv) { SIM_DESC sd = sim_state_alloc (kind, callback); /* FIXME: watchpoints code shouldn't need this */ STATE_WATCHPOINTS (sd)->pc = &(PC); STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC); STATE_WATCHPOINTS (sd)->interrupt_handler = d30v_interrupt_event; /* Initialize the mechanism for doing insn profiling. */ CPU_INSN_NAME (STATE_CPU (sd, 0)) = get_insn_name; CPU_MAX_INSNS (STATE_CPU (sd, 0)) = nr_itable_entries; #ifdef TRAPDUMP TRACE_TRAP_P = TRAPDUMP; #endif if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) return 0; sim_add_option_table (sd, NULL, d30v_options); /* Memory and EEPROM */ /* internal instruction RAM - fixed */ sim_do_commandf (sd, "memory region 0,0x10000"); /* internal data RAM - fixed */ sim_do_commandf (sd, "memory region 0x20000000,0x8000"); /* control register dummy area */ sim_do_commandf (sd, "memory region 0x40000000,0x10000"); /* external RAM */ sim_do_commandf (sd, "memory region 0x80000000,0x%lx", extmem_size); /* EIT RAM */ sim_do_commandf (sd, "memory region 0xfffff000,0x1000"); /* 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) { /* Uninstall the modules to avoid memory leaks, file descriptor leaks, etc. */ sim_module_uninstall (sd); return 0; } /* check for/establish the a reference program image */ if (sim_analyze_program (sd, (STATE_PROG_ARGV (sd) != NULL ? *STATE_PROG_ARGV (sd) : NULL), abfd) != SIM_RC_OK) { sim_module_uninstall (sd); return 0; } /* establish any remaining configuration options */ if (sim_config (sd) != SIM_RC_OK) { sim_module_uninstall (sd); return 0; } if (sim_post_argv_init (sd) != SIM_RC_OK) { /* Uninstall the modules to avoid memory leaks, file descriptor leaks, etc. */ sim_module_uninstall (sd); return 0; } return sd; } void sim_close (SIM_DESC sd, int quitting) { /* Uninstall the modules to avoid memory leaks, file descriptor leaks, etc. */ sim_module_uninstall (sd); } SIM_RC sim_create_inferior (SIM_DESC sd, struct _bfd *abfd, char **argv, char **envp) { /* clear all registers */ memset (&STATE_CPU (sd, 0)->regs, 0, sizeof (STATE_CPU (sd, 0)->regs)); EIT_VB = EIT_VB_DEFAULT; STATE_CPU (sd, 0)->unit = any_unit; sim_module_init (sd); if (abfd != NULL) PC = bfd_get_start_address (abfd); else PC = 0xfffff000; /* reset value */ return SIM_RC_OK; } void sim_do_command (SIM_DESC sd, char *cmd) { if (sim_args_command (sd, cmd) != SIM_RC_OK) sim_io_printf (sd, "Unknown command `%s'\n", cmd); } /* The following register definitions were ripped off from gdb/config/tm-d30v.h. If any of those defs changes, this table needs to be updated. */ #define NUM_REGS 86 #define R0_REGNUM 0 #define FP_REGNUM 11 #define LR_REGNUM 62 #define SP_REGNUM 63 #define SPI_REGNUM 64 /* Interrupt stack pointer */ #define SPU_REGNUM 65 /* User stack pointer */ #define CREGS_START 66 #define PSW_REGNUM (CREGS_START + 0) /* psw, bpsw, or dpsw??? */ #define PSW_SM 0x80000000 /* Stack mode: 0 == interrupt (SPI), 1 == user (SPU) */ #define BPSW_REGNUM (CREGS_START + 1) /* Backup PSW (on interrupt) */ #define PC_REGNUM (CREGS_START + 2) /* pc, bpc, or dpc??? */ #define BPC_REGNUM (CREGS_START + 3) /* Backup PC (on interrupt) */ #define DPSW_REGNUM (CREGS_START + 4) /* Backup PSW (on debug trap) */ #define DPC_REGNUM (CREGS_START + 5) /* Backup PC (on debug trap) */ #define RPT_C_REGNUM (CREGS_START + 7) /* Loop count */ #define RPT_S_REGNUM (CREGS_START + 8) /* Loop start address*/ #define RPT_E_REGNUM (CREGS_START + 9) /* Loop end address */ #define MOD_S_REGNUM (CREGS_START + 10) #define MOD_E_REGNUM (CREGS_START + 11) #define IBA_REGNUM (CREGS_START + 14) /* Instruction break address */ #define EIT_VB_REGNUM (CREGS_START + 15) /* Vector base address */ #define INT_S_REGNUM (CREGS_START + 16) /* Interrupt status */ #define INT_M_REGNUM (CREGS_START + 17) /* Interrupt mask */ #define A0_REGNUM 84 #define A1_REGNUM 85 int sim_fetch_register (sd, regno, buf, length) SIM_DESC sd; int regno; unsigned char *buf; int length; { if (regno < A0_REGNUM) { unsigned32 reg; if (regno <= R0_REGNUM + 63) reg = sd->cpu[0].regs.general_purpose[regno]; else if (regno <= SPU_REGNUM) reg = sd->cpu[0].regs.sp[regno - SPI_REGNUM]; else reg = sd->cpu[0].regs.control[regno - CREGS_START]; buf[0] = reg >> 24; buf[1] = reg >> 16; buf[2] = reg >> 8; buf[3] = reg; } else if (regno < NUM_REGS) { unsigned32 reg; reg = sd->cpu[0].regs.accumulator[regno - A0_REGNUM] >> 32; buf[0] = reg >> 24; buf[1] = reg >> 16; buf[2] = reg >> 8; buf[3] = reg; reg = sd->cpu[0].regs.accumulator[regno - A0_REGNUM]; buf[4] = reg >> 24; buf[5] = reg >> 16; buf[6] = reg >> 8; buf[7] = reg; } else abort (); return -1; } int sim_store_register (sd, regno, buf, length) SIM_DESC sd; int regno; unsigned char *buf; int length; { if (regno < A0_REGNUM) { unsigned32 reg; reg = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; if (regno <= R0_REGNUM + 63) sd->cpu[0].regs.general_purpose[regno] = reg; else if (regno <= SPU_REGNUM) sd->cpu[0].regs.sp[regno - SPI_REGNUM] = reg; else sd->cpu[0].regs.control[regno - CREGS_START] = reg; } else if (regno < NUM_REGS) { unsigned32 reg; reg = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; sd->cpu[0].regs.accumulator[regno - A0_REGNUM] = (unsigned64)reg << 32; reg = (buf[4] << 24) | (buf[5] << 16) | (buf[6] << 8) | buf[7]; sd->cpu[0].regs.accumulator[regno - A0_REGNUM] |= reg; } else abort (); return -1; }