/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 (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 (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); }