/* gdb-if.c -- sim interface to GDB.
-Copyright (C) 2011-2013 Free Software Foundation, Inc.
+Copyright (C) 2011-2021 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/>. */
-#include "config.h"
+/* This must come before any other includes. */
+#include "defs.h"
+
#include <stdio.h>
#include <assert.h>
#include <signal.h>
#include <stdlib.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-rl78.h"
"This is the sole rl78 minisim instance."
};
-static int open;
-
-static unsigned char hw_breakpoints[MEM_SIZE/8];
+static int is_open;
static struct host_callback_struct *host_callbacks;
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)
+ if (is_open)
fprintf (stderr, "rl78 minisim: re-opened sim\n");
/* The 'run' interface doesn't use this function, so we don't care
trace = 0;
sim_disasm_init (abfd);
- open = 1;
+ is_open = 1;
+
+ while (argv != NULL && *argv != NULL)
+ {
+ if (strcmp (*argv, "g10") == 0 || strcmp (*argv, "-Mg10") == 0)
+ {
+ fprintf (stderr, "rl78 g10 support enabled.\n");
+ rl78_g10_mode = 1;
+ g13_multiply = 0;
+ g14_multiply = 0;
+ mem_set_mirror (0, 0xf8000, 4096);
+ break;
+ }
+ if (strcmp (*argv, "g13") == 0 || strcmp (*argv, "-Mg13") == 0)
+ {
+ fprintf (stderr, "rl78 g13 support enabled.\n");
+ rl78_g10_mode = 0;
+ g13_multiply = 1;
+ g14_multiply = 0;
+ break;
+ }
+ if (strcmp (*argv, "g14") == 0 || strcmp (*argv, "-Mg14") == 0)
+ {
+ fprintf (stderr, "rl78 g14 support enabled.\n");
+ rl78_g10_mode = 0;
+ g13_multiply = 0;
+ g14_multiply = 1;
+ break;
+ }
+ argv++;
+ }
+
return &the_minisim;
}
/* Not much to do. At least free up our memory. */
init_mem ();
- open = 0;
+ is_open = 0;
}
/* Open the program to run; print a message if the program cannot
/* Load a program. */
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);
/* Create inferior. */
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);
val = get_le (buf, length);
if (regno == sim_rl78_pc_regnum)
- pc = val;
+ {
+ pc = val;
+
+ /* The rl78 program counter is 20 bits wide. Ensure that GDB
+ hasn't picked up any stray bits. This has occurred when performing
+ a GDB "return" command in which the return address is obtained
+ from a 32-bit container on the stack. */
+ assert ((pc & ~0x0fffff) == 0);
+ }
else
memory[reg_addr (regno)] = val;
return size;
/* Given a signal number used by the rl78 bsp (that is, newlib),
return the corresponding signal numbers. */
-int
+static int
rl78_signal_to_target (int sig)
{
switch (sig)
/* 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 (RL78_STEPPED (rc) || RL78_HIT_BREAK (rc))
break;
}
- if (hw_breakpoints[pc >> 3]
- && (hw_breakpoints[pc >> 3] & (1 << (pc & 0x7))))
- {
- reason = sim_stopped;
- siggnal = GDB_SIGNAL_TRAP;
- break;
- }
rc = setjmp (decode_jmp_buf);
if (rc == 0)
rc = decode_opcode ();
command. */
void
-sim_do_command (SIM_DESC sd, char *cmd)
+sim_do_command (SIM_DESC sd, const char *cmd)
{
- char *args;
+ const char *arg;
+ char **argv = buildargv (cmd);
check_desc (sd);
- if (cmd == NULL)
+ cmd = arg = "";
+ if (argv != NULL)
{
- cmd = "";
- args = "";
- }
- else
- {
- char *p = cmd;
-
- /* Skip leading whitespace. */
- while (isspace (*p))
- p++;
-
- /* Find the extent of the command word. */
- for (p = cmd; *p; p++)
- if (isspace (*p))
- break;
-
- /* Null-terminate the command word, and record the start of any
- further arguments. */
- if (*p)
- {
- *p = '\0';
- args = p + 1;
- while (isspace (*args))
- args++;
- }
- else
- args = p;
+ if (argv[0] != NULL)
+ cmd = argv[0];
+ if (argv[1] != NULL)
+ arg = argv[1];
}
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, "noisy") == 0)
+ else if (strcmp (arg, "noisy") == 0)
verbose = 2;
- else if (strcmp (args, "off") == 0)
+ else if (strcmp (arg, "off") == 0)
verbose = 0;
else
printf ("The 'sim verbose' command expects 'on', 'noisy', or 'off'"
else
printf ("The 'sim' command expects either 'trace' or 'verbose'"
" as a subcommand.\n");
+
+ freeargv (argv);
}
/* Stub for command completion. */
{
return NULL;
}
+
+char *
+sim_memory_map (SIM_DESC sd)
+{
+ return NULL;
+}
projects / deliverable / binutils-gdb.git / blobdiff