/* gdb-if.c -- sim interface to GDB.
-Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+Copyright (C) 2008-2019 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"
#include <stdio.h>
#include <assert.h>
#include <signal.h>
"This is the sole rx minisim instance. See libsim.a's global variables."
};
-static int open;
+static int rx_sim_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)
+ if (rx_sim_is_open)
fprintf (stderr, "rx minisim: re-opened sim\n");
/* The 'run' interface doesn't use this function, so we don't care
execution_error_init_debugger ();
sim_disasm_init (abfd);
- open = 1;
+ rx_sim_is_open = 1;
return &the_minisim;
}
/* Not much to do. At least free up our memory. */
init_mem ();
- open = 0;
+ rx_sim_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);
if (!abfd)
return SIM_RC_FAIL;
- rx_load (abfd);
+ rx_load (abfd, get_callbacks ());
build_swap_list (abfd);
return SIM_RC_OK;
}
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);
if (abfd)
{
- rx_load (abfd);
+ rx_load (abfd, NULL);
build_swap_list (abfd);
}
check_desc (sd);
if (!check_regno (regno))
- return 0;
+ return -1;
size = reg_size (regno);
if (length != size)
- return 0;
+ return -1;
if (rx_big_endian)
val = get_be (buf, length);
default:
fprintf (stderr, "rx minisim: unrecognized register number: %d\n",
regno);
- return -1;
+ return 0;
}
return size;
/* Given a signal number used by the RX bsp (that is, newlib),
- return a host signal number. (Oddly, the gdb/sim interface uses
- host signal numbers...) */
-int
-rx_signal_to_host (int rx)
+ return a target signal number used by GDB. */
+static int
+rx_signal_to_gdb_signal (int rx)
{
switch (rx)
{
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;
if (execution_error_get_last_error () != SIM_ERR_NONE)
{
reason = sim_stopped;
- siggnal = TARGET_SIGNAL_SEGV;
+ siggnal = GDB_SIGNAL_SEGV;
}
if (RX_STEPPED (rc) || RX_HIT_BREAK (rc))
{
reason = sim_stopped;
- siggnal = TARGET_SIGNAL_TRAP;
+ siggnal = GDB_SIGNAL_TRAP;
}
else if (RX_STOPPED (rc))
{
reason = sim_stopped;
- siggnal = rx_signal_to_host (RX_STOP_SIG (rc));
+ siggnal = rx_signal_to_gdb_signal (RX_STOP_SIG (rc));
}
else
{
void
sim_resume (SIM_DESC sd, int step, int sig_to_deliver)
{
+ int rc;
+
check_desc (sd);
if (sig_to_deliver != 0)
execution_error_clear_last_error ();
if (step)
- handle_step (decode_opcode ());
+ {
+ rc = setjmp (decode_jmp_buf);
+ if (rc == 0)
+ rc = decode_opcode ();
+ handle_step (rc);
+ }
else
{
/* We don't clear 'stop' here, because then we would miss
{
stop = 0;
reason = sim_stopped;
- siggnal = TARGET_SIGNAL_INT;
+ siggnal = GDB_SIGNAL_INT;
break;
}
- int rc = decode_opcode ();
+ rc = setjmp (decode_jmp_buf);
+ if (rc == 0)
+ rc = decode_opcode ();
if (execution_error_get_last_error () != SIM_ERR_NONE)
{
reason = sim_stopped;
- siggnal = TARGET_SIGNAL_SEGV;
+ siggnal = GDB_SIGNAL_SEGV;
break;
}
}
void
-sim_do_command (SIM_DESC sd, char *cmd)
+sim_do_command (SIM_DESC sd, const char *cmd)
{
- check_desc (sd);
+ const char *args;
+ char *p = strdup (cmd);
- char *p = cmd;
+ check_desc (sd);
/* Skip leading whitespace. */
while (isspace (*p))
/* Null-terminate the command word, and record the start of any
further arguments. */
- char *args;
if (*p)
{
*p = '\0';
else
printf ("The 'sim' command expects either 'trace' or 'verbose'"
" as a subcommand.\n");
+
+ free (p);
+}
+
+char **
+sim_complete_command (SIM_DESC sd, const char *text, const char *word)
+{
+ return NULL;
}