/* gdb-if.c -- sim interface to GDB.
-Copyright (C) 2011-2012 Free Software Foundation, Inc.
+Copyright (C) 2011-2020 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of the GNU simulators.
static int open;
-static unsigned char hw_breakpoints[MEM_SIZE/8];
-
static struct host_callback_struct *host_callbacks;
/* Open an instance of the sim. For this sim, only one instance
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)
fprintf (stderr, "rl78 minisim: re-opened sim\n");
sim_disasm_init (abfd);
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;
}
/* 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;
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 *args;
+ char *p = strdup (cmd);
check_desc (sd);
}
else
{
- char *p = cmd;
-
/* Skip leading whitespace. */
while (isspace (*p))
p++;
else
printf ("The 'sim' command expects either 'trace' or 'verbose'"
" as a subcommand.\n");
+
+ free (p);
}
/* Stub for command completion. */
char **
-sim_complete_command (SIM_DESC sd, char *text, char *word)
+sim_complete_command (SIM_DESC sd, const char *text, const char *word)
{
return NULL;
}