-/* Remote debugging interface for SPARC64 Simulator.
- Copyright 1992 Free Software Foundation, Inc.
+/* Generic remote debugging interface for simulators.
+ Copyright 1993 Free Software Foundation, Inc.
Contributed by Cygnus Support. Hacked from Steve Chamberlain's Z8000 work
by Doug Evans. (dje@cygnus.com).
#include "terminal.h"
#include "target.h"
#include "gdbcore.h"
-#include "sp64sim.h"
+#include "simif.h"
/* Naming conventions:
- simif_xxx are internal objects that describe top level interfaces to the
- simulator (simif for SIMulator InterFace).
+ sim_xxx are internal objects that describe top level interfaces to the
+ simulator.
- sim_xxx are external counterparts to the simif_xxx objects that must be
- provided by the simulator. */
+ simif_xxx are external counterparts to the sim_xxx objects that must be
+ provided by the simulator (simif for SIMulator InterFace, duh...).
+
+ A complete list of them is:
+
+ --- Fetch one register and store the raw value in BUF.
+
+int simif_fetch_register (int regno, char *buf);
+
+ --- Store VAL in one register.
+
+int simif_store_register (int regno, char *val);
+
+ --- Complete terminate the simulator. This includes freeing all memory,
+ closing all open files, and releasing all mmap'd memory.
+
+int simif_kill (void);
+
+ --- Load program PROG into the simulator.
+
+int simif_load (bfd *abfd, char *prog);
+
+ --- Set the arguments and environment for the program loaded into the
+ simulator. ARGV and ENV are NULL terminated lists of pointers.
+
+int simif_set_args (char **argv, char **env);
+
+ --- Initialize the simulator. This function is called when the simulator
+ is selected from the command line. ARGS is passed from the command line
+ and can be used to select whatever run time options the simulator provides.
+ ARGS is the raw character string and must be parsed by the simulator.
+
+int simif_open (char *args);
+
+ --- Start running the program, or resume it after a breakpoint.
+ FIXME: What are A and B?
+
+int simif_resume (int a, int b);
+
+ --- Fetch the reason why the program stopped running (breakpoint, signal,
+ etc.)
+
+WAITTYPE simif_stop_signal (void);
+
+ --- Write some data into the program's memory.
+ Result is 0 for success, nonzero for failure.
+
+int simif_write (CORE_ADDR memaddr, char *myaddr, int len);
+
+ --- Read some data from the program's memory.
+ Result is 0 for success, nonzero for failure.
+
+int simif_read (CORE_ADDR memaddr, char *myaddr, int len);
+*/
/* Forward data declarations */
-extern struct target_ops simif_ops;
+extern struct target_ops sim_ops;
-int simif_verbose = 0; /* available to the simulator to use */
+int sim_verbose = 0; /* available to the simulator to use */
static int program_loaded = 0;
static void dump_mem ();
static void
-simif_fetch_register (regno)
+sim_fetch_register (regno)
int regno;
{
if (regno == -1)
{
- if (simif_verbose)
- printf_filtered ("simif_fetch_register: %d\n", regno);
+ if (sim_verbose)
+ printf_filtered ("sim_fetch_register: %d\n", regno);
+ /* FIXME: Where did the 16 come from and what does it need to be? */
for (regno = 0; regno < 16; regno++)
- simif_fetch_register (regno);
+ sim_fetch_register (regno);
}
else
{
char buf[MAX_REGISTER_RAW_SIZE];
- sim_fetch_register (regno, buf);
+ simif_fetch_register (regno, buf);
supply_register (regno, buf);
- if (simif_verbose)
+ if (sim_verbose)
{
- printf_filtered ("simif_fetch_register: %d", regno);
+ printf_filtered ("sim_fetch_register: %d", regno);
dump_mem (buf, sizeof (REGISTER_TYPE));
}
}
}
static void
-simif_store_register (regno)
+sim_store_register (regno)
int regno;
{
if (regno == -1)
{
- if (simif_verbose)
- printf_filtered ("simif_store_register: %d\n", regno);
+ if (sim_verbose)
+ printf_filtered ("sim_store_register: %d\n", regno);
+ /* FIXME: 16? */
for (regno = 0; regno < 16; regno++)
- simif_store_register (regno);
+ sim_store_register (regno);
}
- else
+ else
{
char value[sizeof (REGISTER_TYPE)];
read_register_gen (regno, value);
SWAP_TARGET_AND_HOST (value, sizeof (REGISTER_TYPE));
- sim_store_register (regno, value);
- if (simif_verbose)
+ simif_store_register (regno, value);
+ if (sim_verbose)
{
- printf_filtered ("simif_store_register: %d", regno);
+ printf_filtered ("sim_store_register: %d", regno);
dump_mem (value, sizeof (REGISTER_TYPE));
}
}
}
static void
-simif_kill (arg,from_tty)
+sim_kill (arg,from_tty)
char *arg;
int from_tty;
{
- if (simif_verbose)
- printf_filtered ("simif_kill: arg \"%s\"\n", arg);
+ if (sim_verbose)
+ printf_filtered ("sim_kill: arg \"%s\"\n", arg);
- sim_kill (); /* close fd's, remove mappings */
+ simif_kill (); /* close fd's, remove mappings */
inferior_pid = 0;
}
-/* Download a file specified in 'args', to the sim. */
+/* Load program PROG into the sim. */
static void
-simif_load (args, fromtty)
- char *args;
+sim_load (prog, fromtty)
+ char *prog;
int fromtty;
{
bfd *abfd;
- if (simif_verbose)
- printf_filtered ("simif_load: args \"%s\"\n", args);
+ if (sim_verbose)
+ printf_filtered ("sim_load: prog \"%s\"\n", prog);
inferior_pid = 0;
program_loaded = 0;
- /* FIXME: a.out should be a config parm and/or an arg. */
- abfd = bfd_openr (args,"a.out-sunos-big");
+ abfd = bfd_openr (prog, (char *) 0);
if (!abfd)
- error ("Unable to open file %s.", args);
+ error ("Unable to open file %s.", prog);
if (bfd_check_format (abfd, bfd_object) ==0)
error ("File is not an object file.");
- if (sim_load (abfd, args) != 0)
+ if (simif_load (abfd, prog) != 0)
return;
program_loaded = 1;
- /* It is sim_load()'s job to set this. */
- /*sim_set_pc (abfd->start_address); - can't do 'cus we use RMTVaddr */
+ simif_set_pc (abfd->start_address);
}
/* This is called not only when we first attach, but also when the
user types "run" after having attached. */
static void
-simif_create_inferior (exec_file, args, env)
+sim_create_inferior (exec_file, args, env)
char *exec_file;
char *args;
char **env;
if (! program_loaded)
error ("No program loaded.");
- if (simif_verbose)
- printf_filtered ("simif_create_inferior: exec_file \"%s\", args \"%s\"\n",
+ if (sim_verbose)
+ printf_filtered ("sim_create_inferior: exec_file \"%s\", args \"%s\"\n",
exec_file, args);
if (exec_file == 0 || exec_bfd == 0)
entry_pt = (int) bfd_get_start_address (exec_bfd);
- simif_kill (NULL, NULL);
+ sim_kill (NULL, NULL);
remove_breakpoints ();
init_wait_for_inferior ();
strcat (arg_buf, args);
argv = buildargv (arg_buf);
make_cleanup (freeargv, (char *) argv);
- sim_set_args (argv, env);
+ simif_set_args (argv, env);
inferior_pid = 42;
insert_breakpoints (); /* Needed to get correct instruction in cache */
proceed (entry_pt, -1, 0);
}
-/* Called when selecting the simulator. EG: (gdb) target sim name.
- NAME unused at present. */
+/* Called when selecting the simulator. EG: (gdb) target sim name. */
static void
-simif_open (name, from_tty)
- char *name;
+sim_open (args, from_tty)
+ char *args;
int from_tty;
{
- if (simif_verbose)
- printf_filtered ("simif_open: name \"%s\"\n", name);
+ if (sim_verbose)
+ printf_filtered ("sim_open: args \"%s\"\n", args);
- if (sim_init (name) != 0)
+ if (simif_open (args) != 0)
{
error ("Unable to initialize simulator (insufficient memory?).");
return;
}
- push_target (&simif_ops);
+ push_target (&sim_ops);
target_fetch_registers (-1);
printf_filtered ("Connected to the simulator.\n");
/* Close out all files and local state before this target loses control. */
static void
-simif_close (quitting)
+sim_close (quitting)
int quitting;
{
- if (simif_verbose)
- printf_filtered ("simif_close: quitting %d\n", quitting);
+ if (sim_verbose)
+ printf_filtered ("sim_close: quitting %d\n", quitting);
program_loaded = 0;
- /* FIXME: Need to call sim_close() to close all files and
+ /* FIXME: Need to call simif_close() to close all files and
delete all mappings. */
}
with your gdb. */
static void
-simif_detach (args,from_tty)
+sim_detach (args,from_tty)
char *args;
int from_tty;
{
- if (simif_verbose)
- printf_filtered ("simif_detach: args \"%s\"\n", args);
+ if (sim_verbose)
+ printf_filtered ("sim_detach: args \"%s\"\n", args);
- pop_target (); /* calls simif_close to do the real work */
+ pop_target (); /* calls sim_close to do the real work */
if (from_tty)
printf_filtered ("Ending simulator %s debugging\n", target_shortname);
}
/* FIXME: What are A and B? */
static void
-simif_resume (a,b)
+sim_resume (a,b)
{
- if (simif_verbose)
- printf_filtered ("simif_resume: %d/%d\n", a, b);
+ if (sim_verbose)
+ printf_filtered ("sim_resume: %d/%d\n", a, b);
- sim_resume (a, b);
+ simif_resume (a, b);
}
/* Wait until the remote machine stops, then return,
storing status in STATUS just as `wait' would. */
static int
-simif_wait (status)
+sim_wait (status)
WAITTYPE *status;
{
- if (simif_verbose)
- printf_filtered ("simif_wait: ");
+ if (sim_verbose)
+ printf_filtered ("sim_wait: ");
#if 1
- *status = sim_stop_signal ();
+ *status = simif_stop_signal ();
#else
- WSETSTOP (*status, sim_stop_signal ());
+ WSETSTOP (*status, simif_stop_signal ());
#endif
- if (simif_verbose)
+ if (sim_verbose)
printf_filtered ("status %d\n", *status);
return 0;
}
debugged. */
static void
-simif_prepare_to_store ()
+sim_prepare_to_store ()
{
/* Do nothing, since we can store individual regs */
}
static int
-simif_xfer_inferior_memory (memaddr, myaddr, len, write, target)
+sim_xfer_inferior_memory (memaddr, myaddr, len, write, target)
CORE_ADDR memaddr;
char *myaddr;
int len;
int write;
struct target_ops *target; /* ignored */
{
- if (simif_verbose)
- {
- printf_filtered ("simif_xfer_inferior_memory: myaddr 0x%x, memaddr 0x%x, len %d, write %d\n",
- myaddr, memaddr, len, write);
- if (simif_verbose && write)
- dump_mem(myaddr, len);
- }
+ if (sim_verbose)
+ {
+ printf_filtered ("sim_xfer_inferior_memory: myaddr 0x%x, memaddr 0x%x, len %d, write %d\n",
+ myaddr, memaddr, len, write);
+ if (sim_verbose && write)
+ dump_mem(myaddr, len);
+ }
if (! program_loaded)
error ("No program loaded.");
if (write)
- {
- len = sim_write (memaddr, myaddr, len);
- }
+ {
+ len = simif_write (memaddr, myaddr, len);
+ }
else
- {
- len = sim_read (memaddr, myaddr, len);
- if (simif_verbose && len > 0)
- dump_mem(myaddr, len);
- }
+ {
+ len = simif_read (memaddr, myaddr, len);
+ if (sim_verbose && len > 0)
+ dump_mem(myaddr, len);
+ }
return len;
}
static void
-simif_files_info ()
+sim_files_info ()
{
char *file = "nothing";
if (exec_bfd)
file = bfd_get_filename (exec_bfd);
- if (simif_verbose)
- printf_filtered ("simif_files_info: file \"%s\"\n", file);
+ if (sim_verbose)
+ printf_filtered ("sim_files_info: file \"%s\"\n", file);
if (exec_bfd)
printf_filtered ("\tAttached to %s running program %s\n",
/* Clear the sims notion of what the break points are */
static void
-simif_mourn ()
+sim_mourn ()
{
- if (simif_verbose)
- printf_filtered ("simif_mourn:\n");
+ if (sim_verbose)
+ printf_filtered ("sim_mourn:\n");
remove_breakpoints ();
generic_mourn_inferior ();
/* Define the target subroutine names */
-struct target_ops simif_ops =
+struct target_ops sim_ops =
{
- "sim", "SPARC64 Simulator",
- "Use the SPARC64 Simulator",
- simif_open, simif_close,
- 0, simif_detach, simif_resume, simif_wait, /* attach */
- simif_fetch_register, simif_store_register,
- simif_prepare_to_store,
- simif_xfer_inferior_memory,
- simif_files_info,
+ "sim", "Simulator",
+ "Use the Simulator",
+ sim_open, sim_close,
+ 0, sim_detach, sim_resume, sim_wait, /* attach */
+ sim_fetch_register, sim_store_register,
+ sim_prepare_to_store,
+ sim_xfer_inferior_memory,
+ sim_files_info,
0, 0, /* Breakpoints */
0, 0, 0, 0, 0, /* Terminal handling */
- simif_kill, /* FIXME, kill */
- simif_load,
+ sim_kill, /* FIXME, kill */
+ sim_load,
0, /* lookup_symbol */
- simif_create_inferior, /* create_inferior */
- simif_mourn, /* mourn_inferior FIXME */
+ sim_create_inferior, /* create_inferior */
+ sim_mourn, /* mourn_inferior FIXME */
0, /* can_run */
0, /* notice_signals */
process_stratum, 0, /* next */
};
static void
-simif_snoop ()
+sim_snoop ()
{
- simif_verbose = ! simif_verbose;
- if (simif_verbose)
+ sim_verbose = ! sim_verbose;
+ if (sim_verbose)
printf_filtered ("Snoop enabled\n");
else
printf_filtered ("Snoop disabled\n");
void
_initialize_remote_sim ()
{
- add_target (&simif_ops);
- add_com ("snoop", class_obscure, simif_snoop,
+ add_target (&sim_ops);
+ add_com ("snoop", class_obscure, sim_snoop,
"Show what commands are going to the simulator");
}
int len;
{
if (len <= 8)
- {
- if (len == 8 || len == 4)
- {
- long l[2];
- memcpy (l, buf, len);
- printf_filtered ("\t0x%x", l[0]);
- printf_filtered (len == 8 ? " 0x%x\n" : "\n", l[1]);
- }
- else
{
- int i;
- printf_filtered ("\t");
- for (i = 0; i < len; i++)
- printf_filtered ("0x%x ", buf[i]);
- printf_filtered ("\n");
+ if (len == 8 || len == 4)
+ {
+ long l[2];
+ memcpy (l, buf, len);
+ printf_filtered ("\t0x%x", l[0]);
+ printf_filtered (len == 8 ? " 0x%x\n" : "\n", l[1]);
+ }
+ else
+ {
+ int i;
+ printf_filtered ("\t");
+ for (i = 0; i < len; i++)
+ printf_filtered ("0x%x ", buf[i]);
+ printf_filtered ("\n");
+ }
}
- }
}
projects / binutils-gdb.git / commitdiff