/* gdb.c --- sim interface to GDB.
-Copyright (C) 2005, 2007, 2008 Free Software Foundation, Inc.
+Copyright (C) 2005-2022 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of the GNU simulators.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
+/* This must come before any other includes. */
+#include "defs.h"
#include <stdio.h>
#include <assert.h>
#include <signal.h>
+#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "ansidecl.h"
-#include "gdb/callback.h"
-#include "gdb/remote-sim.h"
+#include "libiberty.h"
+#include "sim/callback.h"
+#include "sim/sim.h"
#include "gdb/signals.h"
#include "gdb/sim-m32c.h"
#include "mem.h"
#include "load.h"
#include "syscalls.h"
+#ifdef TIMER_A
+#include "timer_a.h"
+#endif
/* I don't want to wrap up all the minisim's data structures in an
object and pass that around. That'd be a big change, and neither
"This is the sole m32c minisim instance. See libsim.a's global variables."
};
-static int open;
+static int is_open;
SIM_DESC
sim_open (SIM_OPEN_KIND kind,
struct host_callback_struct *callback,
- struct bfd *abfd, char **argv)
+ struct bfd *abfd, char * const *argv)
{
- if (open)
+ setbuf (stdout, 0);
+ if (is_open)
fprintf (stderr, "m32c minisim: re-opened sim\n");
/* The 'run' interface doesn't use this function, so we don't care
init_mem ();
init_regs ();
- open = 1;
+ is_open = 1;
return &the_minisim;
}
/* Not much to do. At least free up our memory. */
init_mem ();
- open = 0;
+ is_open = 0;
}
static bfd *
SIM_RC
-sim_load (SIM_DESC sd, char *prog, struct bfd *abfd, int from_tty)
+sim_load (SIM_DESC sd, const char *prog, struct bfd * abfd, int from_tty)
{
check_desc (sd);
}
SIM_RC
-sim_create_inferior (SIM_DESC sd, struct bfd *abfd, char **argv, char **env)
+sim_create_inferior (SIM_DESC sd, struct bfd * abfd,
+ char * const *argv, char * const *env)
{
check_desc (sd);
}
int
-sim_read (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
+sim_read (SIM_DESC sd, SIM_ADDR mem, void *buf, int length)
{
check_desc (sd);
}
int
-sim_write (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
+sim_write (SIM_DESC sd, SIM_ADDR mem, const void *buf, int length)
{
check_desc (sd);
/* Read the LENGTH bytes at BUF as an little-endian value. */
static DI
-get_le (unsigned char *buf, int length)
+get_le (const unsigned char *buf, int length)
{
DI acc = 0;
while (--length >= 0)
}
int
-sim_fetch_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
+sim_fetch_register (SIM_DESC sd, int regno, void *buf, int length)
{
size_t size;
}
int
-sim_store_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
+sim_store_register (SIM_DESC sd, int regno, const void *buf, int length)
{
size_t size;
check_desc (sd);
if (!check_regno (regno))
- return 0;
+ return -1;
size = reg_size (regno);
default:
fprintf (stderr, "m32c minisim: unrecognized register number: %d\n",
regno);
- return -1;
+ return 0;
}
}
return size;
}
-void
-sim_info (SIM_DESC sd, int verbose)
-{
- check_desc (sd);
-
- printf ("The m32c minisim doesn't collect any statistics.\n");
-}
-
static volatile int stop;
static enum sim_stop reason;
-int siggnal;
+static int siggnal;
/* Given a signal number used by the M32C bsp (that is, newlib),
- return a host signal number. (Oddly, the gdb/sim interface uses
- host signal numbers...) */
-int
-m32c_signal_to_host (int m32c)
+ return a target signal number used by GDB. */
+static int
+m32c_signal_to_target (int m32c)
{
switch (m32c)
{
case 4:
-#ifdef SIGILL
- return SIGILL;
-#else
- return SIGSEGV;
-#endif
+ return GDB_SIGNAL_ILL;
case 5:
- return SIGTRAP;
+ return GDB_SIGNAL_TRAP;
case 10:
-#ifdef SIGBUS
- return SIGBUS;
-#else
- return SIGSEGV;
-#endif
+ return GDB_SIGNAL_BUS;
case 11:
- return SIGSEGV;
+ return GDB_SIGNAL_SEGV;
case 24:
-#ifdef SIGXCPU
- return SIGXCPU;
-#else
- break;
-#endif
+ return GDB_SIGNAL_XCPU;
case 2:
- return SIGINT;
+ return GDB_SIGNAL_INT;
case 8:
-#ifdef SIGFPE
- return SIGFPE;
-#else
- break;
-#endif
+ return GDB_SIGNAL_FPE;
case 6:
- return SIGABRT;
+ return GDB_SIGNAL_ABRT;
}
return 0;
/* Take a step return code RC and set up the variables consulted by
sim_stop_reason appropriately. */
-void
+static void
handle_step (int rc)
{
if (M32C_STEPPED (rc) || M32C_HIT_BREAK (rc))
{
reason = sim_stopped;
- siggnal = TARGET_SIGNAL_TRAP;
+ siggnal = GDB_SIGNAL_TRAP;
}
else if (M32C_STOPPED (rc))
{
reason = sim_stopped;
- siggnal = m32c_signal_to_host (M32C_STOP_SIG (rc));
+ siggnal = m32c_signal_to_target (M32C_STOP_SIG (rc));
}
else
{
}
if (step)
- handle_step (decode_opcode ());
+ {
+ handle_step (decode_opcode ());
+#ifdef TIMER_A
+ update_timer_a ();
+#endif
+ }
else
{
/* We don't clear 'stop' here, because then we would miss
interrupt signal handler. */
for (;;)
{
+ int rc;
+
if (stop)
{
stop = 0;
reason = sim_stopped;
- siggnal = TARGET_SIGNAL_INT;
+ siggnal = GDB_SIGNAL_INT;
break;
}
- int rc = decode_opcode ();
+ rc = decode_opcode ();
+#ifdef TIMER_A
+ update_timer_a ();
+#endif
if (!M32C_STEPPED (rc))
{
}
}
}
+ m32c_sim_restore_console ();
}
int
}
void
-sim_do_command (SIM_DESC sd, char *cmd)
+sim_do_command (SIM_DESC sd, const char *cmd)
{
- check_desc (sd);
-
- char *p = cmd;
-
- /* Skip leading whitespace. */
- while (isspace (*p))
- p++;
+ const char *arg;
+ char **argv = buildargv (cmd);
- /* Find the extent of the command word. */
- for (p = cmd; *p; p++)
- if (isspace (*p))
- break;
+ check_desc (sd);
- /* Null-terminate the command word, and record the start of any
- further arguments. */
- char *args;
- if (*p)
+ cmd = arg = "";
+ if (argv != NULL)
{
- *p = '\0';
- args = p + 1;
- while (isspace (*args))
- args++;
+ if (argv[0] != NULL)
+ cmd = argv[0];
+ if (argv[1] != NULL)
+ arg = argv[1];
}
- else
- args = p;
if (strcmp (cmd, "trace") == 0)
{
- if (strcmp (args, "on") == 0)
+ if (strcmp (arg, "on") == 0)
trace = 1;
- else if (strcmp (args, "off") == 0)
+ else if (strcmp (arg, "off") == 0)
trace = 0;
else
printf ("The 'sim trace' command expects 'on' or 'off' "
}
else if (strcmp (cmd, "verbose") == 0)
{
- if (strcmp (args, "on") == 0)
+ if (strcmp (arg, "on") == 0)
verbose = 1;
- else if (strcmp (args, "off") == 0)
+ else if (strcmp (arg, "off") == 0)
verbose = 0;
else
printf ("The 'sim verbose' command expects 'on' or 'off'"
else
printf ("The 'sim' command expects either 'trace' or 'verbose'"
" as a subcommand.\n");
+
+ freeargv (argv);
+}
+
+char **
+sim_complete_command (SIM_DESC sd, const char *text, const char *word)
+{
+ return NULL;
+}
+
+char *
+sim_memory_map (SIM_DESC sd)
+{
+ return NULL;
+}
+
+void
+sim_info (SIM_DESC sd, int verbose)
+{
+ printf ("The m32c minisim doesn't collect any statistics.\n");
}
projects / binutils.git / blobdiff