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old-cross-binutils/sim/ppc/sim_calls.c
Mike Frysinger af9f7da78b sim: add sim_complete_command stubs for non-common-using ports 
For the ports that don't use the common/ subdir, we need to add stub funcs
to them to avoid build failures with gdb and command completion.  These do
not implement the actual completion functionality ... any port that wants
that can either convert to the common/ subdir, or fill out the function on
their own time.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-16 18:16:36 +00:00

397 lines
8.7 KiB
C
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/* This file is part of the program psim.
Copyright 1994, 1995, 1996, 1998, 2003 Andrew Cagney
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <signal.h> /* FIXME - should be machine dependant version */
#include <stdarg.h>
#include <ctype.h>
#include "psim.h"
#include "options.h"
#undef printf_filtered /* blow away the mapping */
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#include "libiberty.h"
#include "bfd.h"
#include "gdb/callback.h"
#include "gdb/remote-sim.h"
#include "gdb/signals.h"
/* Define the rate at which the simulator should poll the host
for a quit. */
#ifndef POLL_QUIT_INTERVAL
#define POLL_QUIT_INTERVAL 0x20
#endif
static int poll_quit_count = POLL_QUIT_INTERVAL;
/* Structures used by the simulator, for gdb just have static structures */
psim *simulator;
static device *root_device;
static host_callback *callbacks;
SIM_DESC
sim_open (SIM_OPEN_KIND kind,
host_callback *callback,
struct bfd *abfd,
char **argv)
{
callbacks = callback;
/* Note: The simulation is not created by sim_open() because
complete information is not yet available */
/* trace the call */
TRACE(trace_gdb, ("sim_open called\n"));
if (root_device != NULL)
sim_io_printf_filtered("Warning - re-open of simulator leaks memory\n");
root_device = psim_tree();
simulator = NULL;
psim_options(root_device, argv + 1);
if (ppc_trace[trace_opts])
print_options ();
/* fudge our descriptor for now */
return (SIM_DESC) 1;
}
void
sim_close (SIM_DESC sd, int quitting)
{
TRACE(trace_gdb, ("sim_close(quitting=%d) called\n", quitting));
if (ppc_trace[trace_print_info] && simulator != NULL)
psim_print_info (simulator, ppc_trace[trace_print_info]);
}
SIM_RC
sim_load (SIM_DESC sd, char *prog, bfd *abfd, int from_tty)
{
TRACE(trace_gdb, ("sim_load(prog=%s, from_tty=%d) called\n",
prog, from_tty));
ASSERT(prog != NULL);
/* create the simulator */
TRACE(trace_gdb, ("sim_load() - first time, create the simulator\n"));
simulator = psim_create(prog, root_device);
/* bring in all the data section */
psim_init(simulator);
/* get the start address */
if (abfd == NULL)
{
abfd = bfd_openr (prog, 0);
if (abfd == NULL)
error ("psim: can't open \"%s\": %s\n",
prog, bfd_errmsg (bfd_get_error ()));
if (!bfd_check_format (abfd, bfd_object))
{
const char *errmsg = bfd_errmsg (bfd_get_error ());
bfd_close (abfd);
error ("psim: \"%s\" is not an object file: %s\n",
prog, errmsg);
}
bfd_close (abfd);
}
return SIM_RC_OK;
}
int
sim_read (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
{
int result = psim_read_memory(simulator, MAX_NR_PROCESSORS,
buf, mem, length);
TRACE(trace_gdb, ("sim_read(mem=0x%lx, buf=0x%lx, length=%d) = %d\n",
(long)mem, (long)buf, length, result));
return result;
}
int
sim_write (SIM_DESC sd, SIM_ADDR mem, const unsigned char *buf, int length)
{
int result = psim_write_memory(simulator, MAX_NR_PROCESSORS,
buf, mem, length,
1/*violate_ro*/);
TRACE(trace_gdb, ("sim_write(mem=0x%lx, buf=0x%lx, length=%d) = %d\n",
(long)mem, (long)buf, length, result));
return result;
}
void
sim_info (SIM_DESC sd, int verbose)
{
TRACE(trace_gdb, ("sim_info(verbose=%d) called\n", verbose));
psim_print_info (simulator, verbose);
}
SIM_RC
sim_create_inferior (SIM_DESC sd,
struct bfd *abfd,
char **argv,
char **envp)
{
unsigned_word entry_point;
TRACE(trace_gdb, ("sim_create_inferior(start_address=0x%x, ...)\n",
entry_point));
if (simulator == NULL)
error ("No program loaded");
if (abfd != NULL)
entry_point = bfd_get_start_address (abfd);
else
entry_point = 0xfff00000; /* ??? */
psim_init(simulator);
psim_stack(simulator, argv, envp);
ASSERT (psim_write_register(simulator, -1 /* all start at same PC */,
&entry_point, "pc", cooked_transfer) > 0);
return SIM_RC_OK;
}
void
sim_stop_reason (SIM_DESC sd, enum sim_stop *reason, int *sigrc)
{
psim_status status = psim_get_status(simulator);
switch (status.reason) {
case was_continuing:
*reason = sim_stopped;
if (status.signal == 0)
*sigrc = TARGET_SIGNAL_TRAP;
else
*sigrc = status.signal;
break;
case was_trap:
*reason = sim_stopped;
*sigrc = TARGET_SIGNAL_TRAP;
break;
case was_exited:
*reason = sim_exited;
*sigrc = status.signal;
break;
case was_signalled:
*reason = sim_signalled;
*sigrc = status.signal;
break;
}
TRACE(trace_gdb, ("sim_stop_reason(reason=0x%lx(%ld), sigrc=0x%lx(%ld))\n",
(long)reason, (long)*reason, (long)sigrc, (long)*sigrc));
}
/* Run (or resume) the program. */
int
sim_stop (SIM_DESC sd)
{
psim_stop (simulator);
return 1;
}
void
sim_resume (SIM_DESC sd, int step, int siggnal)
{
TRACE(trace_gdb, ("sim_resume(step=%d, siggnal=%d)\n",
step, siggnal));
if (step)
{
psim_step (simulator);
}
else
{
psim_run (simulator);
}
}
void
sim_do_command (SIM_DESC sd, char *cmd)
{
TRACE(trace_gdb, ("sim_do_commands(cmd=%s) called\n",
cmd ? cmd : "(null)"));
if (cmd != NULL) {
char **argv = buildargv(cmd);
psim_command(root_device, argv);
freeargv(argv);
}
}
char **
sim_complete_command (SIM_DESC sd, char *text, char *word)
{
return NULL;
}
/* Polling, if required */
void
sim_io_poll_quit (void)
{
if (callbacks->poll_quit != NULL && poll_quit_count-- < 0)
{
poll_quit_count = POLL_QUIT_INTERVAL;
if (callbacks->poll_quit (callbacks))
psim_stop (simulator);
}
}
/* Map simulator IO operations onto the corresponding GDB I/O
functions.
NB: Only a limited subset of operations are mapped across. More
advanced operations (such as dup or write) must either be mapped to
one of the below calls or handled internally */
int
sim_io_read_stdin(char *buf,
int sizeof_buf)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
return callbacks->read_stdin(callbacks, buf, sizeof_buf);
break;
case DONT_USE_STDIO:
return callbacks->read(callbacks, 0, buf, sizeof_buf);
break;
default:
error("sim_io_read_stdin: unaccounted switch\n");
break;
}
return 0;
}
int
sim_io_write_stdout(const char *buf,
int sizeof_buf)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
return callbacks->write_stdout(callbacks, buf, sizeof_buf);
break;
case DONT_USE_STDIO:
return callbacks->write(callbacks, 1, buf, sizeof_buf);
break;
default:
error("sim_io_write_stdout: unaccounted switch\n");
break;
}
return 0;
}
int
sim_io_write_stderr(const char *buf,
int sizeof_buf)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
/* NB: I think there should be an explicit write_stderr callback */
return callbacks->write(callbacks, 3, buf, sizeof_buf);
break;
case DONT_USE_STDIO:
return callbacks->write(callbacks, 3, buf, sizeof_buf);
break;
default:
error("sim_io_write_stderr: unaccounted switch\n");
break;
}
return 0;
}
void
sim_io_printf_filtered(const char *fmt,
...)
{
char message[1024];
va_list ap;
/* format the message */
va_start(ap, fmt);
vsprintf(message, fmt, ap);
va_end(ap);
/* sanity check */
if (strlen(message) >= sizeof(message))
error("sim_io_printf_filtered: buffer overflow\n");
callbacks->printf_filtered(callbacks, "%s", message);
}
void
sim_io_flush_stdoutput(void)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
callbacks->flush_stdout (callbacks);
break;
case DONT_USE_STDIO:
break;
default:
error("sim_io_read_stdin: unaccounted switch\n");
break;
}
}
void
sim_io_error (SIM_DESC sd, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
callbacks->evprintf_filtered (callbacks, fmt, ap);
va_end(ap);
callbacks->error (callbacks, "");
}
/****/
void *
zalloc(long size)
{
void *memory = (void*)xmalloc(size);
if (memory == NULL)
error("xmalloc failed\n");
memset(memory, 0, size);
return memory;
}
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