| /* Low level interface to HP800 running mach 4.0. |
| Copyright 1995, 2000, 2001 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 "regcache.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); |
| } |