| 1 | /* Low level interface to HP800 running mach 4.0. |
| 2 | Copyright (C) 1995 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "inferior.h" |
| 23 | #include "floatformat.h" |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | |
| 27 | #include <mach.h> |
| 28 | #include <mach/message.h> |
| 29 | #include <mach/exception.h> |
| 30 | #include <mach_error.h> |
| 31 | |
| 32 | #include <target.h> |
| 33 | |
| 34 | /* |
| 35 | * Fetch inferiors registers for gdb. |
| 36 | * REGNO specifies which (as gdb views it) register, -1 for all. |
| 37 | */ |
| 38 | |
| 39 | void |
| 40 | fetch_inferior_registers (int regno) |
| 41 | { |
| 42 | kern_return_t ret; |
| 43 | thread_state_data_t state; |
| 44 | unsigned int stateCnt = TRACE_FLAVOR_SIZE; |
| 45 | int index; |
| 46 | |
| 47 | if (!MACH_PORT_VALID (current_thread)) |
| 48 | error ("fetch inferior registers: Invalid thread"); |
| 49 | |
| 50 | if (must_suspend_thread) |
| 51 | setup_thread (current_thread, 1); |
| 52 | |
| 53 | ret = thread_get_state (current_thread, |
| 54 | TRACE_FLAVOR, |
| 55 | state, |
| 56 | &stateCnt); |
| 57 | |
| 58 | if (ret != KERN_SUCCESS) |
| 59 | warning ("fetch_inferior_registers: %s ", |
| 60 | mach_error_string (ret)); |
| 61 | else |
| 62 | { |
| 63 | for (index = 0; index < NUM_REGS; index++) |
| 64 | supply_register (index, (void *) &state[index]); |
| 65 | } |
| 66 | |
| 67 | if (must_suspend_thread) |
| 68 | setup_thread (current_thread, 0); |
| 69 | } |
| 70 | \f |
| 71 | /* Store our register values back into the inferior. |
| 72 | * If REGNO is -1, do this for all registers. |
| 73 | * Otherwise, REGNO specifies which register |
| 74 | * |
| 75 | * On mach3 all registers are always saved in one call. |
| 76 | */ |
| 77 | void |
| 78 | store_inferior_registers (int regno) |
| 79 | { |
| 80 | kern_return_t ret; |
| 81 | thread_state_data_t state; |
| 82 | unsigned int stateCnt = TRACE_FLAVOR_SIZE; |
| 83 | register int index; |
| 84 | |
| 85 | if (!MACH_PORT_VALID (current_thread)) |
| 86 | error ("store inferior registers: Invalid thread"); |
| 87 | |
| 88 | if (must_suspend_thread) |
| 89 | setup_thread (current_thread, 1); |
| 90 | |
| 91 | /* Fetch the state of the current thread */ |
| 92 | ret = thread_get_state (current_thread, |
| 93 | TRACE_FLAVOR, |
| 94 | state, |
| 95 | &stateCnt); |
| 96 | |
| 97 | if (ret != KERN_SUCCESS) |
| 98 | { |
| 99 | warning ("store_inferior_registers (get): %s", |
| 100 | mach_error_string (ret)); |
| 101 | if (must_suspend_thread) |
| 102 | setup_thread (current_thread, 0); |
| 103 | return; |
| 104 | } |
| 105 | |
| 106 | |
| 107 | /* move gdb's registers to thread's state |
| 108 | |
| 109 | * Since we save all registers anyway, save the ones |
| 110 | * that gdb thinks are valid (e.g. ignore the regno |
| 111 | * parameter) |
| 112 | */ |
| 113 | if (regno > 0 && regno < NUM_REGS) |
| 114 | { |
| 115 | memcpy (&state[regno], ®isters[REGISTER_BYTE (regno)], |
| 116 | REGISTER_RAW_SIZE (regno)); |
| 117 | } |
| 118 | else |
| 119 | { |
| 120 | for (index = 0; index < NUM_REGS; index++) |
| 121 | memcpy (&state[index], ®isters[REGISTER_BYTE (index)], |
| 122 | REGISTER_RAW_SIZE (index)); |
| 123 | /* state[index] = registers[REGISTER_BYTE (index)]; */ |
| 124 | |
| 125 | } |
| 126 | |
| 127 | /* Write gdb's current view of register to the thread |
| 128 | */ |
| 129 | ret = thread_set_state (current_thread, |
| 130 | TRACE_FLAVOR, |
| 131 | state, |
| 132 | TRACE_FLAVOR_SIZE); |
| 133 | |
| 134 | if (ret != KERN_SUCCESS) |
| 135 | warning ("store_inferior_registers (set): %s", |
| 136 | mach_error_string (ret)); |
| 137 | |
| 138 | if (must_suspend_thread) |
| 139 | setup_thread (current_thread, 0); |
| 140 | } |