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/* Low level interface to HP800 running mach 4.0.
Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of GDB.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
#include "inferior.h"
#include "floatformat.h"
#include <stdio.h>
#include <mach.h>
#include <mach/message.h>
#include <mach/exception.h>
#include <mach_error.h>
#include <target.h>
/*
* Fetch inferiors registers for gdb.
* REGNO specifies which (as gdb views it) register, -1 for all.
*/
void
fetch_inferior_registers (regno)
int regno;
{
kern_return_t ret;
thread_state_data_t state;
unsigned int stateCnt = TRACE_FLAVOR_SIZE;
int index;
if (! MACH_PORT_VALID (current_thread))
error ("fetch inferior registers: Invalid thread");
if (must_suspend_thread)
setup_thread (current_thread, 1);
ret = thread_get_state (current_thread,
TRACE_FLAVOR,
state,
&stateCnt);
if (ret != KERN_SUCCESS)
warning ("fetch_inferior_registers: %s ",
mach_error_string (ret));
else
{
for (index = 0; index < NUM_REGS; index++)
supply_register (index,(void*)&state[index]);
}
if (must_suspend_thread)
setup_thread (current_thread, 0);
}
/* Store our register values back into the inferior.
* If REGNO is -1, do this for all registers.
* Otherwise, REGNO specifies which register
*
* On mach3 all registers are always saved in one call.
*/
void
store_inferior_registers (regno)
int regno;
{
kern_return_t ret;
thread_state_data_t state;
unsigned int stateCnt = TRACE_FLAVOR_SIZE;
register int index;
if (! MACH_PORT_VALID (current_thread))
error ("store inferior registers: Invalid thread");
if (must_suspend_thread)
setup_thread (current_thread, 1);
/* Fetch the state of the current thread */
ret = thread_get_state (current_thread,
TRACE_FLAVOR,
state,
&stateCnt);
if (ret != KERN_SUCCESS)
{
warning ("store_inferior_registers (get): %s",
mach_error_string (ret));
if (must_suspend_thread)
setup_thread (current_thread, 0);
return;
}
/* move gdb's registers to thread's state
*
* Since we save all registers anyway, save the ones
* that gdb thinks are valid (e.g. ignore the regno
* parameter)
*/
if (regno > 0 && regno < NUM_REGS )
{
memcpy(&state[regno], ®isters[REGISTER_BYTE (regno)],
REGISTER_RAW_SIZE(regno));
}
else
{
for (index = 0; index < NUM_REGS; index++)
memcpy(&state[index], ®isters[REGISTER_BYTE (index)],
REGISTER_RAW_SIZE(index));
/* state[index] = registers[REGISTER_BYTE (index)];*/
}
/* Write gdb's current view of register to the thread
*/
ret = thread_set_state (current_thread,
TRACE_FLAVOR,
state,
TRACE_FLAVOR_SIZE);
if (ret != KERN_SUCCESS)
warning ("store_inferior_registers (set): %s",
mach_error_string (ret));
if (must_suspend_thread)
setup_thread (current_thread, 0);
}
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