-/* Main simulator entry points for the M32R.
- Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Main simulator entry points specific to the M32R.
+ Copyright (C) 1996-2015 Free Software Foundation, Inc.
Contributed by Cygnus Support.
-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, or (at your option)
-any later version.
+ This file is part of GDB, the GNU debugger.
-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.
+ 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.
-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. */
+ 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"
-#include "targ-vals.h"
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#include "dv-m32r_uart.h"
static void free_state (SIM_DESC);
static void print_m32r_misc_cpu (SIM_CPU *cpu, int verbose);
sim_open (kind, callback, abfd, argv)
SIM_OPEN_KIND kind;
host_callback *callback;
- struct _bfd *abfd;
+ struct bfd *abfd;
char **argv;
{
SIM_DESC sd = sim_state_alloc (kind, callback);
+ char c;
+ int i;
/* 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)
sim_add_option_table (sd, extra_options);
#endif
- /* Allocate core managed memory */
- sim_do_commandf (sd, "memory region 0,0x%lx", M32R_DEFAULT_MEM_SIZE);
-
- /* Allocate a handler for the MSPR register. */
- sim_core_attach (sd, NULL,
- 0 /*level*/,
- access_read_write,
- 0 /*space ???*/,
- M32R_DEVICE_ADDR, M32R_DEVICE_LEN /*nr_bytes*/,
- 0 /*modulo*/,
- &m32r_devices,
- NULL /*buffer*/);
-
/* 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. */
return 0;
}
+ /* Allocate a handler for the control registers and other devices
+ if no memory for that range has been allocated by the user.
+ All are allocated in one chunk to keep things from being
+ unnecessarily complicated.
+ TODO: Move these to the sim-model framework. */
+ sim_hw_parse (sd, "/core/%s/reg %#x %i", "m32r_uart", UART_BASE_ADDR, 0x100);
+ sim_hw_parse (sd, "/core/%s/reg %#x %i", "m32r_cache", 0xfffffff0, 0x10);
+
+ /* Allocate core managed memory if none specified by user.
+ Use address 4 here in case the user wanted address 0 unmapped. */
+ if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0)
+ sim_do_commandf (sd, "memory region 0,0x%x", M32R_DEFAULT_MEM_SIZE);
+
/* check for/establish the reference program image */
if (sim_analyze_program (sd,
(STATE_PROG_ARGV (sd) != NULL
return 0;
}
- /* If both cpu model and state architecture are set, ensure they're
- compatible. If only one is set, set the other. If neither are set,
- use the default model. STATE_ARCHITECTURE is the bfd_arch_info data
- for the selected "mach" (bfd terminology). */
- {
- SIM_CPU *cpu = STATE_CPU (sd, 0);
-
- if (! STATE_ARCHITECTURE (sd)
- /* Only check cpu 0. STATE_ARCHITECTURE is for that one only. */
- && ! CPU_MACH (cpu))
- {
- /* Set the default model. */
- const MODEL *model = sim_model_lookup (WITH_DEFAULT_MODEL);
- sim_model_set (sd, NULL, model);
- }
- if (STATE_ARCHITECTURE (sd)
- && CPU_MACH (cpu))
- {
- if (strcmp (STATE_ARCHITECTURE (sd)->printable_name,
- MACH_NAME (CPU_MACH (cpu))) != 0)
- {
- sim_io_eprintf (sd, "invalid model `%s' for `%s'\n",
- MODEL_NAME (CPU_MODEL (cpu)),
- STATE_ARCHITECTURE (sd)->printable_name);
- free_state (sd);
- return 0;
- }
- }
- else if (STATE_ARCHITECTURE (sd))
- {
- /* Use the default model for the selected machine.
- The default model is the first one in the list. */
- const MACH *mach = sim_mach_lookup (STATE_ARCHITECTURE (sd)->printable_name);
- sim_model_set (sd, NULL, MACH_MODELS (mach));
- }
- else
- {
- STATE_ARCHITECTURE (sd) = bfd_scan_arch (MACH_NAME (CPU_MACH (cpu)));
- }
- }
-
/* Establish any remaining configuration options. */
if (sim_config (sd) != SIM_RC_OK)
{
return 0;
}
- /* Initialize various cgen things not done by common framework. */
- cgen_init (sd);
-
+ /* Open a copy of the cpu descriptor table. */
{
- int c;
-
- for (c = 0; c < MAX_NR_PROCESSORS; ++c)
+ CGEN_CPU_DESC cd = m32r_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name,
+ CGEN_ENDIAN_BIG);
+ for (i = 0; i < MAX_NR_PROCESSORS; ++i)
{
- /* Only needed for profiling, but the structure member is small. */
- memset (& CPU_M32R_MISC_PROFILE (STATE_CPU (sd, c)), 0,
- sizeof (CPU_M32R_MISC_PROFILE (STATE_CPU (sd, c))));
- /* Hook in callback for reporting these stats */
- PROFILE_INFO_CPU_CALLBACK (CPU_PROFILE_DATA (STATE_CPU (sd, c)))
- = print_m32r_misc_cpu;
+ SIM_CPU *cpu = STATE_CPU (sd, i);
+ CPU_CPU_DESC (cpu) = cd;
+ CPU_DISASSEMBLER (cpu) = sim_cgen_disassemble_insn;
}
+ m32r_cgen_init_dis (cd);
}
+ /* Initialize various cgen things not done by common framework.
+ Must be done after m32r_cgen_cpu_open. */
+ cgen_init (sd);
+
+ for (c = 0; c < MAX_NR_PROCESSORS; ++c)
+ {
+ /* Only needed for profiling, but the structure member is small. */
+ memset (CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i)), 0,
+ sizeof (* CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i))));
+ /* Hook in callback for reporting these stats */
+ PROFILE_INFO_CPU_CALLBACK (CPU_PROFILE_DATA (STATE_CPU (sd, i)))
+ = print_m32r_misc_cpu;
+ }
+
/* 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;
-{
- sim_module_uninstall (sd);
-}
\f
SIM_RC
sim_create_inferior (sd, abfd, argv, envp)
SIM_DESC sd;
- struct _bfd *abfd;
+ struct bfd *abfd;
char **argv;
char **envp;
{
addr = 0;
sim_pc_set (current_cpu, addr);
+#ifdef M32R_LINUX
+ m32rbf_h_cr_set (current_cpu,
+ m32r_decode_gdb_ctrl_regnum(SPI_REGNUM), 0x1f00000);
+ m32rbf_h_cr_set (current_cpu,
+ m32r_decode_gdb_ctrl_regnum(SPU_REGNUM), 0x1f00000);
+#endif
+
#if 0
STATE_ARGV (sd) = sim_copy_argv (argv);
STATE_ENVP (sd) = sim_copy_argv (envp);
return SIM_RC_OK;
}
-int
-sim_stop (SIM_DESC sd)
-{
- switch (STATE_ARCHITECTURE (sd)->mach)
- {
- case bfd_mach_m32r :
- return m32r_engine_stop (sd, NULL, NULL_CIA, sim_stopped, SIM_SIGINT);
-/* start-sanitize-m32rx */
-#ifdef HAVE_CPU_M32RX
- case bfd_mach_m32rx :
- return m32rx_engine_stop (sd, NULL, NULL_CIA, sim_stopped, SIM_SIGINT);
-#endif
-/* end-sanitize-m32rx */
- default :
- abort ();
- }
-}
-
-/* This isn't part of the official interface.
- This is just a good place to put this for now. */
-
-void
-sim_sync_stop (SIM_DESC sd, SIM_CPU *cpu, PCADDR pc, enum sim_stop reason, int sigrc)
-{
- switch (STATE_ARCHITECTURE (sd)->mach)
- {
- case bfd_mach_m32r :
- (void) m32r_engine_stop (sd, cpu, pc, reason, sigrc);
- break;
-/* start-sanitize-m32rx */
-#ifdef HAVE_CPU_M32RX
- case bfd_mach_m32rx :
- (void) m32rx_engine_stop (sd, cpu, pc, reason, sigrc);
- break;
-#endif
-/* end-sanitize-m32rx */
- default :
- abort ();
- }
-}
-
-void
-sim_resume (sd, step, siggnal)
- SIM_DESC sd;
- int step, siggnal;
-{
- sim_module_resume (sd);
-
- switch (STATE_ARCHITECTURE (sd)->mach)
- {
- case bfd_mach_m32r :
- m32r_engine_run (sd, step, siggnal);
- break;
-/* start-sanitize-m32rx */
-#ifdef HAVE_CPU_M32RX
- case bfd_mach_m32rx :
- m32rx_engine_run (sd, step, siggnal);
- break;
-#endif
-/* end-sanitize-m32rx */
- default :
- abort ();
- }
-
- sim_module_suspend (sd);
-}
-
/* PROFILE_CPU_CALLBACK */
static void
sim_io_printf (sd, " %-*s %s\n\n",
PROFILE_LABEL_WIDTH, "Fill nops:",
sim_add_commas (buf, sizeof (buf),
- CPU_M32R_MISC_PROFILE (cpu).fillnop_count));
- }
-}
-
-/* The contents of BUF are in target byte order. */
-
-int
-sim_fetch_register (sd, rn, buf, length)
- SIM_DESC sd;
- int rn;
- unsigned char *buf;
- int length;
-{
- SIM_CPU *cpu = STATE_CPU (sd, 0);
-
- return (* CPU_REG_FETCH (cpu)) (cpu, rn, buf, length);
-}
-
-/* The contents of BUF are in target byte order. */
-
-int
-sim_store_register (sd, rn, buf, length)
- SIM_DESC sd;
- int rn;
- unsigned char *buf;
- int length;
-{
- SIM_CPU *cpu = STATE_CPU (sd, 0);
-
- return (* CPU_REG_STORE (cpu)) (cpu, rn, buf, length);
-}
-
-void
-sim_do_command (sd, cmd)
- SIM_DESC sd;
- char *cmd;
-{
- if (sim_args_command (sd, cmd) != SIM_RC_OK)
- sim_io_eprintf (sd, "Unknown command `%s'\n", cmd);
-}
-\f
-/* The semantic code invokes this for illegal (unrecognized) instructions. */
-
-void
-sim_engine_illegal_insn (current_cpu, pc)
- SIM_CPU *current_cpu;
- PCADDR pc;
-{
- sim_engine_halt (CPU_STATE (current_cpu), current_cpu, NULL, pc,
- sim_stopped, SIM_SIGILL);
-}
-\f
-/* Utility fns to access registers, without knowing the current mach. */
-
-SI
-h_gr_get (SIM_CPU *current_cpu, UINT regno)
-{
- switch (STATE_ARCHITECTURE (CPU_STATE (current_cpu))->mach)
- {
- case bfd_mach_m32r :
- return m32r_h_gr_get (current_cpu, regno);
-/* start-sanitize-m32rx */
-#ifdef HAVE_CPU_M32RX
- case bfd_mach_m32rx :
- return m32rx_h_gr_get (current_cpu, regno);
-#endif
-/* end-sanitize-m32rx */
- default :
- abort ();
- }
-}
-
-void
-h_gr_set (SIM_CPU *current_cpu, UINT regno, SI newval)
-{
- switch (STATE_ARCHITECTURE (CPU_STATE (current_cpu))->mach)
- {
- case bfd_mach_m32r :
- m32r_h_gr_set (current_cpu, regno, newval);
- break;
-/* start-sanitize-m32rx */
-#ifdef HAVE_CPU_M32RX
- case bfd_mach_m32rx :
- m32rx_h_gr_set (current_cpu, regno, newval);
- break;
-#endif
-/* end-sanitize-m32rx */
- default :
- abort ();
+ CPU_M32R_MISC_PROFILE (cpu)->fillnop_count));
+ if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32rx)
+ sim_io_printf (sd, " %-*s %s\n\n",
+ PROFILE_LABEL_WIDTH, "Parallel insns:",
+ sim_add_commas (buf, sizeof (buf),
+ CPU_M32R_MISC_PROFILE (cpu)->parallel_count));
+ if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32r2)
+ sim_io_printf (sd, " %-*s %s\n\n",
+ PROFILE_LABEL_WIDTH, "Parallel insns:",
+ sim_add_commas (buf, sizeof (buf),
+ CPU_M32R_MISC_PROFILE (cpu)->parallel_count));
}
}
-\f
-/* Read/write functions for system call interface. */
-
-static int
-syscall_read_mem (host_callback *cb, struct cb_syscall *sc,
- unsigned long taddr, char *buf, int bytes)
-{
- SIM_DESC sd = (SIM_DESC) sc->p1;
- SIM_CPU *cpu = (SIM_CPU *) sc->p2;
-
- return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes);
-}
-
-static int
-syscall_write_mem (host_callback *cb, struct cb_syscall *sc,
- unsigned long taddr, const char *buf, int bytes)
-{
- SIM_DESC sd = (SIM_DESC) sc->p1;
- SIM_CPU *cpu = (SIM_CPU *) sc->p2;
-
- return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes);
-}
-
-/* Trap support.
- The result is the pc address to continue at. */
-
-USI
-do_trap (SIM_CPU *current_cpu, int num)
-{
- SIM_DESC sd = CPU_STATE (current_cpu);
- host_callback *cb = STATE_CALLBACK (sd);
-
-#ifdef SIM_HAVE_BREAKPOINTS
- /* Check for breakpoints "owned" by the simulator first, regardless
- of --environment. */
- if (num == 1)
- {
- /* First try sim-break.c. If it's a breakpoint the simulator "owns"
- it doesn't return. Otherwise it returns and let's us try. */
- sim_handle_breakpoint (sd, current_cpu, sim_pc_get (current_cpu));
- /* Fall through. */
- }
-#endif
-
- if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
- {
- /* The new pc is the trap vector entry.
- We assume there's a branch there to some handler. */
- USI new_pc = num * 4;
- return new_pc;
- }
-
- switch (num)
- {
- case 0 :
- /* Trap 0 is used for system calls. */
- {
- CB_SYSCALL s;
-
- CB_SYSCALL_INIT (&s);
- s.func = h_gr_get (current_cpu, 0);
- s.arg1 = h_gr_get (current_cpu, 1);
- s.arg2 = h_gr_get (current_cpu, 2);
- s.arg3 = h_gr_get (current_cpu, 3);
-
- if (s.func == TARGET_SYS_exit)
- {
- sim_engine_halt (sd, current_cpu, NULL, sim_pc_get (current_cpu),
- sim_exited, s.arg1);
- }
-
- s.p1 = (PTR) sd;
- s.p2 = (PTR) current_cpu;
- s.read_mem = syscall_read_mem;
- s.write_mem = syscall_write_mem;
- cb_syscall (STATE_CALLBACK (sd), &s);
- h_gr_set (current_cpu, 2, s.errcode);
- h_gr_set (current_cpu, 0, s.result);
- h_gr_set (current_cpu, 1, s.result2);
- break;
- }
-
- case 1: /* breakpoint trap */
- sim_engine_halt (sd, current_cpu, NULL, NULL_CIA,
- sim_stopped, SIM_SIGTRAP);
- break;
-
- default :
- {
- USI new_pc = num * 4;
- return new_pc;
- }
- }
-
- /* Fake an "rte" insn. */
- return (sim_pc_get (current_cpu) & -4) + 4;
-}
projects / thirdparty / binutils-gdb.git / blobdiff