/* * Copyright (c) 2000-2016 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ #include <kern/task.h> #include <kern/thread.h> #include <arm/misc_protos.h> extern zone_t ads_zone; kern_return_t machine_task_set_state( task_t task, int flavor, thread_state_t state, mach_msg_type_number_t state_count) { switch (flavor) { case ARM_DEBUG_STATE: { arm_debug_state_t *tstate = (arm_debug_state_t *) state; if (state_count != ARM_DEBUG_STATE_COUNT) { return KERN_INVALID_ARGUMENT; } if (task->task_debug == NULL) { task->task_debug = zalloc(ads_zone); if (task->task_debug == NULL) { return KERN_FAILURE; } } copy_debug_state(tstate, (arm_debug_state_t*) task->task_debug, FALSE); return KERN_SUCCESS; } case THREAD_STATE_NONE: /* Using this flavor to clear task_debug */ { if (task->task_debug != NULL) { zfree(ads_zone, task->task_debug); task->task_debug = NULL; return KERN_SUCCESS; } return KERN_FAILURE; } default: { return KERN_INVALID_ARGUMENT; } } return KERN_FAILURE; } kern_return_t machine_task_get_state(task_t task, int flavor, thread_state_t state, mach_msg_type_number_t *state_count) { switch (flavor) { case ARM_DEBUG_STATE: { arm_debug_state_t *tstate = (arm_debug_state_t *) state; if (*state_count != ARM_DEBUG_STATE_COUNT) { return KERN_INVALID_ARGUMENT; } if (task->task_debug == NULL) { bzero(state, sizeof(*tstate)); } else { copy_debug_state((arm_debug_state_t*) task->task_debug, tstate, FALSE); /* FALSE OR TRUE doesn't matter since we are ignoring it for arm */ } return KERN_SUCCESS; } default: { return KERN_INVALID_ARGUMENT; } } return KERN_FAILURE; } void machine_task_terminate(task_t task) { if (task) { void *task_debug; task_debug = task->task_debug; if (task_debug != NULL) { task->task_debug = NULL; zfree(ads_zone, task_debug); } } } kern_return_t machine_thread_inherit_taskwide( thread_t thread, task_t parent_task) { if (parent_task->task_debug) { int flavor; mach_msg_type_number_t count; flavor = ARM_DEBUG_STATE; count = ARM_DEBUG_STATE_COUNT; return machine_thread_set_state(thread, flavor, parent_task->task_debug, count); } return KERN_SUCCESS; } void machine_task_init(__unused task_t new_task, __unused task_t parent_task, __unused boolean_t memory_inherit) { }