142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/* Low level interface to HP800 running mach 4.0.
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Copyright 1995, 2000, 2001 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "inferior.h"
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#include "floatformat.h"
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#include "regcache.h"
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#include <stdio.h>
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#include <mach.h>
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#include <mach/message.h>
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#include <mach/exception.h>
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#include <mach_error.h>
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#include <target.h>
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/*
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* Fetch inferiors registers for gdb.
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* REGNO specifies which (as gdb views it) register, -1 for all.
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*/
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void
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fetch_inferior_registers (int regno)
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{
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kern_return_t ret;
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thread_state_data_t state;
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unsigned int stateCnt = TRACE_FLAVOR_SIZE;
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int index;
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if (!MACH_PORT_VALID (current_thread))
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error ("fetch inferior registers: Invalid thread");
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if (must_suspend_thread)
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setup_thread (current_thread, 1);
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ret = thread_get_state (current_thread,
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TRACE_FLAVOR,
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state,
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&stateCnt);
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if (ret != KERN_SUCCESS)
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warning ("fetch_inferior_registers: %s ",
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mach_error_string (ret));
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else
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{
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for (index = 0; index < NUM_REGS; index++)
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supply_register (index, (void *) &state[index]);
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}
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if (must_suspend_thread)
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setup_thread (current_thread, 0);
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}
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/* Store our register values back into the inferior.
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* If REGNO is -1, do this for all registers.
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* Otherwise, REGNO specifies which register
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*
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* On mach3 all registers are always saved in one call.
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*/
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void
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store_inferior_registers (int regno)
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{
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kern_return_t ret;
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thread_state_data_t state;
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unsigned int stateCnt = TRACE_FLAVOR_SIZE;
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register int index;
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if (!MACH_PORT_VALID (current_thread))
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error ("store inferior registers: Invalid thread");
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if (must_suspend_thread)
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setup_thread (current_thread, 1);
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/* Fetch the state of the current thread */
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ret = thread_get_state (current_thread,
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TRACE_FLAVOR,
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state,
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&stateCnt);
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if (ret != KERN_SUCCESS)
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{
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warning ("store_inferior_registers (get): %s",
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mach_error_string (ret));
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if (must_suspend_thread)
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setup_thread (current_thread, 0);
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return;
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}
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/* move gdb's registers to thread's state
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* Since we save all registers anyway, save the ones
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* that gdb thinks are valid (e.g. ignore the regno
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* parameter)
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*/
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if (regno > 0 && regno < NUM_REGS)
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{
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memcpy (&state[regno], &deprecated_registers[REGISTER_BYTE (regno)],
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REGISTER_RAW_SIZE (regno));
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}
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else
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{
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for (index = 0; index < NUM_REGS; index++)
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memcpy (&state[index], &deprecated_registers[REGISTER_BYTE (index)],
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REGISTER_RAW_SIZE (index));
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/* state[index] = deprecated_registers[REGISTER_BYTE (index)]; */
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}
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/* Write gdb's current view of register to the thread
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*/
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ret = thread_set_state (current_thread,
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TRACE_FLAVOR,
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state,
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TRACE_FLAVOR_SIZE);
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if (ret != KERN_SUCCESS)
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warning ("store_inferior_registers (set): %s",
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mach_error_string (ret));
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if (must_suspend_thread)
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setup_thread (current_thread, 0);
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}
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