xnu-6153.11.26.tar.gz

[apple/xnu.git] / osfmk / kern / task.h

diff --git a/osfmk/kern/task.h b/osfmk/kern/task.h
index 36d0fe040f0c05a09d221b4b2da2d3d22ca41d48..1db8fb09d4bf01fd4767d227312532f933c44098 100644 (file)
--- a/osfmk/kern/task.h
+++ b/osfmk/kern/task.h
@@ -1,49 +1,55 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @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,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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_FREE_COPYRIGHT@
  */
  */
 /*
  * @OSF_FREE_COPYRIGHT@
  */

-/* 
+/*

  * Mach Operating System
  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
  * All Rights Reserved.
  * Mach Operating System
  * Copyright (c) 1991,1990,1989,1988 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.
  * 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 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
  * 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
  *  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.
  */
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */


@@ -74,15 +80,30 @@
  * improvements that they make and grant CSL redistribution rights.
  *
  */
  * improvements that they make and grant CSL redistribution rights.
  *
  */

+/*
+ * NOTICE: This file was modified by McAfee Research in 2004 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ * Copyright (c) 2005 SPARTA, Inc.
+ */

 
 

-#ifndef        _KERN_TASK_H_
+#ifndef _KERN_TASK_H_

 #define _KERN_TASK_H_
 
 #include <kern/kern_types.h>
 #include <mach/mach_types.h>
 #define _KERN_TASK_H_
 
 #include <kern/kern_types.h>
 #include <mach/mach_types.h>

-#include <vm/pmap.h>
+#include <sys/cdefs.h>
+
+#ifdef XNU_KERNEL_PRIVATE
+#include <kern/kern_cdata.h>
+#include <mach/sfi_class.h>
+#include <kern/queue.h>
+#include <sys/kern_sysctl.h>
+#endif /* XNU_KERNEL_PRIVATE */
+
+#ifdef  MACH_KERNEL_PRIVATE

 
 

-#ifdef MACH_KERNEL_PRIVATE

 #include <mach/boolean.h>
 #include <mach/port.h>
 #include <mach/time_value.h>
 #include <mach/boolean.h>
 #include <mach/port.h>
 #include <mach/time_value.h>


@@ -90,201 +111,932 @@
 #include <mach/mach_param.h>
 #include <mach/task_info.h>
 #include <mach/exception_types.h>
 #include <mach/mach_param.h>
 #include <mach/task_info.h>
 #include <mach/exception_types.h>

-#include <mach_prof.h>
+#include <mach/vm_statistics.h>

 #include <machine/task.h>
 #include <machine/task.h>

+
+#if MONOTONIC
+#include <machine/monotonic.h>
+#endif /* MONOTONIC */
+
+#include <kern/cpu_data.h>

 #include <kern/queue.h>
 #include <kern/exception.h>
 #include <kern/queue.h>
 #include <kern/exception.h>

-#include <kern/lock.h>
-#include <kern/syscall_emulation.h>
-#include <norma_task.h>
-#include <mach_host.h>
-#include <fast_tas.h>
-#include <task_swapper.h>
-#include <kern/thread_act.h>
-
-typedef struct task {
+#include <kern/locks.h>
+#include <security/_label.h>
+#include <ipc/ipc_port.h>
+
+#include <kern/thread.h>
+#include <mach/coalition.h>
+#include <stdatomic.h>
+#include <os/refcnt.h>
+
+#ifdef CONFIG_ATM
+#include <atm/atm_internal.h>
+#endif
+
+struct _cpu_time_qos_stats {
+       uint64_t cpu_time_qos_default;
+       uint64_t cpu_time_qos_maintenance;
+       uint64_t cpu_time_qos_background;
+       uint64_t cpu_time_qos_utility;
+       uint64_t cpu_time_qos_legacy;
+       uint64_t cpu_time_qos_user_initiated;
+       uint64_t cpu_time_qos_user_interactive;
+};
+
+struct task_writes_counters {
+       uint64_t task_immediate_writes;
+       uint64_t task_deferred_writes;
+       uint64_t task_invalidated_writes;
+       uint64_t task_metadata_writes;
+};
+
+struct task_watchports;
+#include <bank/bank_internal.h>
+
+struct task {

        /* Synchronization/destruction information */
        /* Synchronization/destruction information */

-       decl_mutex_data(,lock)          /* Task's lock */
-       int             ref_count;      /* Number of references to me */
-       boolean_t       active;         /* Task has not been terminated */
-       boolean_t       kernel_loaded;  /* Created with kernel_task_create() */
+       decl_lck_mtx_data(, lock);               /* Task's lock */
+       os_refcnt_t     ref_count;      /* Number of references to me */
+       boolean_t       active;         /* Task has not been terminated */
+       boolean_t       halting;        /* Task is being halted */
+       boolean_t       message_app_suspended;  /* Let iokit know when pidsuspended */
+
+       /* Virtual timers */
+       uint32_t                vtimers;

 
        /* Miscellaneous */
 
        /* Miscellaneous */

-       vm_map_t        map;            /* Address space description */
-       queue_chain_t   pset_tasks;     /* list of tasks assigned to pset */
-       void            *user_data;     /* Arbitrary data settable via IPC */
-       int             suspend_count;  /* Internal scheduling only */
-
-#if    TASK_SWAPPER
-       /* Task swapper data */
-       unsigned short  swap_state;     /* swap state (e.g. IN/OUT) */
-       unsigned short  swap_flags;     /* swap flags (e.g. MAKE_UNSWAPP) */
-       unsigned int    swap_stamp;     /* when last swapped */
-       unsigned long   swap_rss;       /* size (pages) when last swapped */
-       int             swap_ast_waiting; /* number of threads that have not */
-                                         /* reached a clean point and halted */
-       int             swap_nswap;     /* number of times this task swapped */
-       queue_chain_t   swapped_tasks;  /* list of non-resident tasks */
-#endif /* TASK_SWAPPER */
-
-       /* Activations in this task */
-       queue_head_t    thr_acts;       /* list of thread_activations */
-       int             thr_act_count;
-       int             res_act_count;
-       int             active_act_count; /* have not terminate_self yet */
-
-       processor_set_t processor_set;  /* processor set for new threads */
-#if    MACH_HOST
-       boolean_t       may_assign;     /* can assigned pset be changed? */
-       boolean_t       assign_active;  /* waiting for may_assign */
-#endif /* MACH_HOST */
+       vm_map_t        map;            /* Address space description */
+       queue_chain_t   tasks;  /* global list of tasks */
+       struct task_watchports *watchports; /* watchports passed in spawn */
+       turnstile_inheritor_t returnwait_inheritor; /* inheritor for task_wait */

 
 

-       /* User-visible scheduling information */
-       integer_t               user_stop_count;        /* outstanding stops */
+#if defined(CONFIG_SCHED_MULTIQ)
+       sched_group_t sched_group;
+#endif /* defined(CONFIG_SCHED_MULTIQ) */

 
 

-       integer_t               importance;             /* system-wide importance */
+       /* Threads in this task */
+       queue_head_t            threads;
+       struct restartable_ranges *restartable_ranges;

 
 

-       integer_t               priority;               /* base priority */
-       integer_t               max_priority;   /* maximum priority */
+       processor_set_t         pset_hint;
+       struct affinity_space   *affinity_space;
+
+       int                     thread_count;
+       uint32_t                active_thread_count;
+       int                     suspend_count;  /* Internal scheduling only */
+
+       /* User-visible scheduling information */
+       integer_t               user_stop_count;        /* outstanding stops */
+       integer_t               legacy_stop_count;      /* outstanding legacy stops */

 
 

-       integer_t               policy;                 /* obsolete */
+       integer_t               priority;                       /* base priority for threads */
+       integer_t               max_priority;           /* maximum priority for threads */

 
 

-       /* Task security token */
+       integer_t               importance;             /* priority offset (BSD 'nice' value) */
+
+       /* Task security and audit tokens */

        security_token_t sec_token;
        security_token_t sec_token;

-        
-       /* Statistics */
-       time_value_t    total_user_time;        /* user time for dead threads */
-       time_value_t    total_system_time;      /* system time for dead threads */
+       audit_token_t   audit_token;

 
 

-#if    MACH_PROF
-       boolean_t       task_profiled;  /* is task being profiled ? */
-       struct prof_data *profil_buffer;/* profile struct if so */
-#endif /* MACH_PROF */
+       /* Statistics */
+       uint64_t                total_user_time;        /* terminated threads only */
+       uint64_t                total_system_time;
+       uint64_t                total_ptime;
+       uint64_t                total_runnable_time;

 
        /* IPC structures */
 
        /* IPC structures */

-       decl_mutex_data(,itk_lock_data)
-       struct ipc_port *itk_self;      /* not a right, doesn't hold ref */
-       struct ipc_port *itk_sself;     /* a send right */
+       decl_lck_mtx_data(, itk_lock_data);
+       struct ipc_port *itk_self;      /* not a right, doesn't hold ref */
+       struct ipc_port *itk_nself;     /* not a right, doesn't hold ref */
+       struct ipc_port *itk_sself;     /* a send right */

        struct exception_action exc_actions[EXC_TYPES_COUNT];
        struct exception_action exc_actions[EXC_TYPES_COUNT];

-                                       /* a send right each valid element  */
-       struct ipc_port *itk_host;      /* a send right */
-       struct ipc_port *itk_bootstrap; /* a send right */
+       /* a send right each valid element  */
+       struct ipc_port *itk_host;      /* a send right */
+       struct ipc_port *itk_bootstrap; /* a send right */
+       struct ipc_port *itk_seatbelt;  /* a send right */
+       struct ipc_port *itk_gssd;      /* yet another send right */
+       struct ipc_port *itk_debug_control; /* send right for debugmode communications */
+       struct ipc_port *itk_task_access; /* and another send right */
+       struct ipc_port *itk_resume;    /* a receive right to resume this task */

        struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX];
        struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX];

-                                       /* all send rights */
+       /* all send rights */

 
        struct ipc_space *itk_space;
 
 
        struct ipc_space *itk_space;
 

-       /* RPC subsystem information */
-       queue_head_t    subsystem_list; /* list of subsystems */
-       int             subsystem_count;/* number of subsystems */
-
+       ledger_t        ledger;

        /* Synchronizer ownership information */
        /* Synchronizer ownership information */

-       queue_head_t    semaphore_list;         /* list of owned semaphores   */
-       queue_head_t    lock_set_list;          /* list of owned lock sets    */
-       int             semaphores_owned;       /* number of semaphores owned */
-       int             lock_sets_owned;        /* number of lock sets owned  */
-
-       /* User space system call emulation support */
-       struct  eml_dispatch    *eml_dispatch;
-
-        /* Ledgers */
-       struct ipc_port *wired_ledger_port;
-       struct ipc_port *paged_ledger_port;
-        
-#if    NORMA_TASK
-       long            child_node;     /* if != -1, node for new children */
-#endif /* NORMA_TASK */
-#if    FAST_TAS
-       vm_offset_t     fast_tas_base;
-       vm_offset_t     fast_tas_end;
-#endif /* FAST_TAS */
+       queue_head_t    semaphore_list;         /* list of owned semaphores   */
+       int             semaphores_owned;       /* number of semaphores owned */
+
+       unsigned int    priv_flags;                     /* privilege resource flags */
+#define VM_BACKING_STORE_PRIV   0x1
+

        MACHINE_TASK
        MACHINE_TASK

+

        integer_t faults;              /* faults counter */
        integer_t faults;              /* faults counter */

-        integer_t pageins;             /* pageins counter */
-        integer_t cow_faults;          /* copy on write fault counter */
-        integer_t messages_sent;       /* messages sent counter */
-        integer_t messages_received;   /* messages received counter */
-        integer_t syscalls_mach;       /* mach system call counter */
-        integer_t syscalls_unix;       /* unix system call counter */
-        integer_t csw;                 /* context switch counter */
-#ifdef  MACH_BSD 
+       integer_t decompressions;      /* decompression counter */
+       integer_t pageins;             /* pageins counter */
+       integer_t cow_faults;          /* copy on write fault counter */
+       integer_t messages_sent;       /* messages sent counter */
+       integer_t messages_received;   /* messages received counter */
+       integer_t syscalls_mach;       /* mach system call counter */
+       integer_t syscalls_unix;       /* unix system call counter */
+       uint32_t  c_switch;                                /* total context switches */
+       uint32_t  p_switch;                                /* total processor switches */
+       uint32_t  ps_switch;                       /* total pset switches */
+
+#ifdef  MACH_BSD

        void *bsd_info;
        void *bsd_info;

-#endif  
-       vm_offset_t     system_shared_region;
-} Task;
+#endif
+       kcdata_descriptor_t             corpse_info;
+       uint64_t                        crashed_thread_id;
+       queue_chain_t                   corpse_tasks;
+#ifdef CONFIG_MACF
+       struct label *                  crash_label;
+#endif
+       struct vm_shared_region         *shared_region;
+       volatile uint32_t t_flags;                                      /* general-purpose task flags protected by task_lock (TL) */
+#define TF_NONE                 0
+#define TF_64B_ADDR             0x00000001                              /* task has 64-bit addressing */
+#define TF_64B_DATA             0x00000002                              /* task has 64-bit data registers */
+#define TF_CPUMON_WARNING       0x00000004                              /* task has at least one thread in CPU usage warning zone */
+#define TF_WAKEMON_WARNING      0x00000008                              /* task is in wakeups monitor warning zone */
+#define TF_TELEMETRY            (TF_CPUMON_WARNING | TF_WAKEMON_WARNING) /* task is a telemetry participant */
+#define TF_GPU_DENIED           0x00000010                              /* task is not allowed to access the GPU */
+#define TF_CORPSE               0x00000020                              /* task is a corpse */
+#define TF_PENDING_CORPSE       0x00000040                              /* task corpse has not been reported yet */
+#define TF_CORPSE_FORK          0x00000080                              /* task is a forked corpse */
+#define TF_PLATFORM             0x00000400                              /* task is a platform binary */
+#define TF_CA_CLIENT_WI         0x00000800                              /* task has CA_CLIENT work interval */
+#define TF_DARKWAKE_MODE        0x00001000                              /* task is in darkwake mode */
+#define TF_NO_SMT               0x00002000                              /* task threads must not be paired with SMT threads */
+
+/*
+ * Task is running within a 64-bit address space.
+ */
+#define task_has_64Bit_addr(task)       \
+       (((task)->t_flags & TF_64B_ADDR) != 0)
+#define task_set_64Bit_addr(task)       \
+       ((task)->t_flags |= TF_64B_ADDR)
+#define task_clear_64Bit_addr(task)     \
+       ((task)->t_flags &= ~TF_64B_ADDR)
+
+/*
+ * Task is using 64-bit machine state.
+ */
+#define task_has_64Bit_data(task)       \
+       (((task)->t_flags & TF_64B_DATA) != 0)
+#define task_set_64Bit_data(task)       \
+       ((task)->t_flags |= TF_64B_DATA)
+#define task_clear_64Bit_data(task)     \
+       ((task)->t_flags &= ~TF_64B_DATA)
+
+#define task_is_a_corpse(task)      \
+        (((task)->t_flags & TF_CORPSE) != 0)

 
 

+#define task_set_corpse(task)       \
+        ((task)->t_flags |= TF_CORPSE)

 
 

-#define task_lock(task)                mutex_lock(&(task)->lock)
-#define task_lock_try(task)    mutex_try(&(task)->lock)
-#define task_unlock(task)      mutex_unlock(&(task)->lock)
+#define task_corpse_pending_report(task)        \
+        (((task)->t_flags & TF_PENDING_CORPSE) != 0)

 
 

-#define        itk_lock_init(task)     mutex_init(&(task)->itk_lock_data, \
-                                          ETAP_THREAD_TASK_ITK)
-#define        itk_lock(task)          mutex_lock(&(task)->itk_lock_data)
-#define        itk_unlock(task)        mutex_unlock(&(task)->itk_lock_data)
+#define task_set_corpse_pending_report(task)       \
+        ((task)->t_flags |= TF_PENDING_CORPSE)
+
+#define task_clear_corpse_pending_report(task)       \
+        ((task)->t_flags &= ~TF_PENDING_CORPSE)
+
+#define task_is_a_corpse_fork(task)     \
+       (((task)->t_flags & TF_CORPSE_FORK) != 0)
+
+       uint32_t t_procflags;                                            /* general-purpose task flags protected by proc_lock (PL) */
+#define TPF_NONE                 0
+#define TPF_DID_EXEC             0x00000001                              /* task has been execed to a new task */
+#define TPF_EXEC_COPY            0x00000002                              /* task is the new copy of an exec */
+#ifdef CONFIG_32BIT_TELEMETRY
+#define TPF_LOG_32BIT_TELEMETRY  0x00000004                              /* task should log identifying information */
+#endif
+
+#define task_did_exec_internal(task)            \
+       (((task)->t_procflags & TPF_DID_EXEC) != 0)
+
+#define task_is_exec_copy_internal(task)        \
+       (((task)->t_procflags & TPF_EXEC_COPY) != 0)
+
+       uint8_t                  t_returnwaitflags;
+#define TWF_NONE                 0
+#define TRW_LRETURNWAIT          0x01           /* task is waiting for fork/posix_spawn/exec to complete */
+#define TRW_LRETURNWAITER        0x02           /* task is waiting for TRW_LRETURNWAIT to get cleared */
+
+       mach_vm_address_t       all_image_info_addr; /* dyld __all_image_info     */
+       mach_vm_size_t          all_image_info_size; /* section location and size */
+
+#if KPC
+#define TASK_KPC_FORCED_ALL_CTRS        0x2     /* Bit in "t_kpc" signifying this task forced all counters */
+       uint32_t t_kpc; /* kpc flags */
+#endif /* KPC */
+
+       boolean_t pidsuspended; /* pid_suspend called; no threads can execute */
+       boolean_t frozen;       /* frozen; private resident pages committed to swap */
+       boolean_t changing_freeze_state;        /* in the process of freezing or thawing */
+       uint16_t policy_ru_cpu          :4,
+           policy_ru_cpu_ext      :4,
+           applied_ru_cpu         :4,
+           applied_ru_cpu_ext     :4;
+       uint8_t  rusage_cpu_flags;
+       uint8_t  rusage_cpu_percentage;         /* Task-wide CPU limit percentage */
+       uint8_t  rusage_cpu_perthr_percentage;  /* Per-thread CPU limit percentage */
+#if MACH_ASSERT
+       int8_t          suspends_outstanding;   /* suspends this task performed in excess of resumes */
+#endif
+       uint64_t rusage_cpu_interval;           /* Task-wide CPU limit interval */
+       uint64_t rusage_cpu_perthr_interval;    /* Per-thread CPU limit interval */
+       uint64_t rusage_cpu_deadline;
+       thread_call_t rusage_cpu_callt;
+#if CONFIG_EMBEDDED
+       queue_head_t    task_watchers;          /* app state watcher threads */
+       int     num_taskwatchers;
+       int             watchapplying;
+#endif /* CONFIG_EMBEDDED */
+
+#if CONFIG_ATM
+       struct atm_task_descriptor *atm_context;  /* pointer to per task atm descriptor */
+#endif
+       struct bank_task *bank_context;  /* pointer to per task bank structure */
+
+#if IMPORTANCE_INHERITANCE
+       struct ipc_importance_task  *task_imp_base;     /* Base of IPC importance chain */
+#endif /* IMPORTANCE_INHERITANCE */
+
+       vm_extmod_statistics_data_t     extmod_statistics;
+
+       struct task_requested_policy requested_policy;
+       struct task_effective_policy effective_policy;
+
+       /*
+        * Can be merged with imp_donor bits, once the IMPORTANCE_INHERITANCE macro goes away.
+        */
+       uint32_t        low_mem_notified_warn           :1,     /* warning low memory notification is sent to the task */
+           low_mem_notified_critical       :1,                 /* critical low memory notification is sent to the task */
+           purged_memory_warn              :1,                 /* purgeable memory of the task is purged for warning level pressure */
+           purged_memory_critical          :1,                 /* purgeable memory of the task is purged for critical level pressure */
+           low_mem_privileged_listener     :1,                 /* if set, task would like to know about pressure changes before other tasks on the system */
+           mem_notify_reserved             :27;                /* reserved for future use */
+
+       uint32_t memlimit_is_active                 :1, /* if set, use active attributes, otherwise use inactive attributes */
+           memlimit_is_fatal                   :1,     /* if set, exceeding current memlimit will prove fatal to the task */
+           memlimit_active_exc_resource        :1,     /* if set, suppress exc_resource exception when task exceeds active memory limit */
+           memlimit_inactive_exc_resource      :1,     /* if set, suppress exc_resource exception when task exceeds inactive memory limit */
+           memlimit_attrs_reserved             :28;     /* reserved for future use */
+
+       io_stat_info_t          task_io_stats;
+
+       struct task_writes_counters task_writes_counters_internal;
+       struct task_writes_counters task_writes_counters_external;
+
+       /*
+        * The cpu_time_qos_stats fields are protected by the task lock
+        */
+       struct _cpu_time_qos_stats      cpu_time_eqos_stats;
+       struct _cpu_time_qos_stats      cpu_time_rqos_stats;
+
+       /* Statistics accumulated for terminated threads from this task */
+       uint32_t        task_timer_wakeups_bin_1;
+       uint32_t        task_timer_wakeups_bin_2;
+       uint64_t        task_gpu_ns;
+       uint64_t        task_energy;
+
+#if MONOTONIC
+       /* Read and written under task_lock */
+       struct mt_task task_monotonic;
+#endif /* MONOTONIC */
+
+       uint8_t         task_can_transfer_memory_ownership;
+       uint8_t         task_objects_disowning;
+       uint8_t         task_objects_disowned;
+       /* # of purgeable volatile VM objects owned by this task: */
+       int             task_volatile_objects;
+       /* # of purgeable but not volatile VM objects owned by this task: */
+       int             task_nonvolatile_objects;
+       int             task_owned_objects;
+       queue_head_t    task_objq;
+       decl_lck_mtx_data(, task_objq_lock); /* protects "task_objq" */
+
+       unsigned int    task_thread_limit:16;
+#if __arm64__
+       unsigned int    task_legacy_footprint:1;
+       unsigned int    task_extra_footprint_limit:1;
+#endif /* __arm64__ */
+       unsigned int    task_region_footprint:1;
+       unsigned int    task_has_crossed_thread_limit:1;
+       uint32_t        exec_token;
+       /*
+        * A task's coalition set is "adopted" in task_create_internal
+        * and unset in task_deallocate_internal, so each array member
+        * can be referenced without the task lock.
+        * Note: these fields are protected by coalition->lock,
+        *       not the task lock.
+        */
+       coalition_t     coalition[COALITION_NUM_TYPES];
+       queue_chain_t   task_coalition[COALITION_NUM_TYPES];
+       uint64_t        dispatchqueue_offset;
+
+#if DEVELOPMENT || DEBUG
+       boolean_t       task_unnested;
+       int             task_disconnected_count;
+#endif
+
+#if HYPERVISOR
+       void *hv_task_target; /* hypervisor virtual machine object associated with this task */
+#endif /* HYPERVISOR */
+
+#if CONFIG_SECLUDED_MEMORY
+       uint8_t task_can_use_secluded_mem;
+       uint8_t task_could_use_secluded_mem;
+       uint8_t task_could_also_use_secluded_mem;
+       uint8_t task_suppressed_secluded;
+#endif /* CONFIG_SECLUDED_MEMORY */
+
+       task_exc_guard_behavior_t task_exc_guard;
+
+       queue_head_t    io_user_clients;
+
+       mach_vm_address_t mach_header_vm_address;
+
+       uint32_t loadTag; /* dext ID used for logging identity */
+};

 
 /*
 
 /*

- *     Internal only routines
+ * EXC_GUARD default delivery behavior for optional Mach port and VM guards.
+ * Applied to new tasks at creation time.

  */
  */

+extern task_exc_guard_behavior_t task_exc_guard_default;
+
+extern kern_return_t
+    task_violated_guard(mach_exception_code_t, mach_exception_subcode_t, void *);
+
+#define task_lock(task)                 lck_mtx_lock(&(task)->lock)
+#define task_lock_assert_owned(task)    LCK_MTX_ASSERT(&(task)->lock, LCK_MTX_ASSERT_OWNED)
+#define task_lock_try(task)             lck_mtx_try_lock(&(task)->lock)
+#define task_unlock(task)               lck_mtx_unlock(&(task)->lock)
+
+#define task_objq_lock_init(task)       lck_mtx_init(&(task)->task_objq_lock, &vm_object_lck_grp, &vm_object_lck_attr)
+#define task_objq_lock(task)            lck_mtx_lock(&(task)->task_objq_lock)
+#define task_objq_lock_assert_owned(task)       LCK_MTX_ASSERT(&(task)->task_objq_lock, LCK_MTX_ASSERT_OWNED)
+#define task_objq_lock_try(task)        lck_mtx_try_lock(&(task)->task_objq_lock)
+#define task_objq_unlock(task)          lck_mtx_unlock(&(task)->task_objq_lock)
+
+#define itk_lock_init(task)     lck_mtx_init(&(task)->itk_lock_data, &ipc_lck_grp, &ipc_lck_attr)
+#define itk_lock_destroy(task)  lck_mtx_destroy(&(task)->itk_lock_data, &ipc_lck_grp)
+#define itk_lock(task)          lck_mtx_lock(&(task)->itk_lock_data)
+#define itk_unlock(task)        lck_mtx_unlock(&(task)->itk_lock_data)
+
+/* task clear return wait flags */
+#define TCRW_CLEAR_INITIAL_WAIT   0x1
+#define TCRW_CLEAR_FINAL_WAIT     0x2
+#define TCRW_CLEAR_ALL_WAIT       (TCRW_CLEAR_INITIAL_WAIT | TCRW_CLEAR_FINAL_WAIT)
+
+#define TASK_REFERENCE_LEAK_DEBUG 0
+
+#if TASK_REFERENCE_LEAK_DEBUG
+extern void task_reference_internal(task_t task);
+extern os_ref_count_t task_deallocate_internal(task_t task);
+#else
+#define task_reference_internal(task) os_ref_retain(&(task)->ref_count)
+#define task_deallocate_internal(task) os_ref_release(&(task)->ref_count)
+#endif
+
+#define task_reference(task)                                    \
+MACRO_BEGIN                                                                             \
+       if ((task) != TASK_NULL)                                        \
+               task_reference_internal(task);                  \
+MACRO_END
+
+extern kern_return_t    kernel_task_create(
+       task_t                  task,
+       vm_offset_t             map_base,
+       vm_size_t               map_size,
+       task_t                  *child);

 
 /* Initialize task module */
 
 /* Initialize task module */

-extern void            task_init(void);
+extern void             task_init(void);
+
+/* coalition_init() calls this to initialize ledgers before task_init() */
+extern void             init_task_ledgers(void);
+
+#define current_task_fast()     (current_thread()->task)
+#define current_task()          current_task_fast()
+
+extern bool task_is_driver(task_t task);
+
+extern lck_attr_t      task_lck_attr;
+extern lck_grp_t       task_lck_grp;
+
+struct task_watchport_elem {
+       task_t                          twe_task;
+       ipc_port_t                      twe_port;     /* (Space lock) */
+};

 
 

-/* task create */
-extern kern_return_t   task_create_local(
-                               task_t          parent_task,
-                               boolean_t       inherit_memory,
-                               boolean_t       kernel_loaded,
-                               task_t          *child_task);   /* OUT */
+struct task_watchports {
+       os_refcnt_t                     tw_refcount;           /* (Space lock) */
+       task_t                          tw_task;               /* (Space lock) & tw_refcount == 0 */
+       thread_t                        tw_thread;             /* (Space lock) & tw_refcount == 0 */
+       uint32_t                        tw_elem_array_count;   /* (Space lock) */
+       struct task_watchport_elem      tw_elem[];             /* (Space lock) & (Portlock) & (mq lock) */
+};

 
 

-#if    MACH_HOST
-/* Freeze and unfreeze task from being reassigned processor sets */
-extern void            task_freeze(
-                               task_t          task);
+#define task_watchports_retain(x)   (os_ref_retain(&(x)->tw_refcount))
+#define task_watchports_release(x)  (os_ref_release(&(x)->tw_refcount))

 
 

-extern void            task_unfreeze(
-                               task_t          task);
-#endif /* MACH_HOST */
+#define task_watchport_elem_init(elem, task, port) \
+do {                                               \
+       (elem)->twe_task = (task);                 \
+       (elem)->twe_port = (port);                 \
+} while(0)

 
 

-extern void            consider_task_collect(void);
+#define task_watchport_elem_clear(elem) task_watchport_elem_init((elem), NULL, NULL)

 
 

-#define        current_task_fast()     (current_act_fast()->task)
-#define current_task()         current_task_fast()
+extern void
+task_add_turnstile_watchports(
+       task_t          task,
+       thread_t        thread,
+       ipc_port_t      *portwatch_ports,
+       uint32_t        portwatch_count);

 
 

-#else /* !MACH_KERNEL_PRIVATE */
+extern void
+task_watchport_elem_deallocate(
+       struct          task_watchport_elem *watchport_elem);

 
 

-extern task_t current_task(void);
+extern boolean_t
+task_has_watchports(task_t task);

 
 

-#endif /* !MACH_KERNEL_PRIVATE */
+#else   /* MACH_KERNEL_PRIVATE */

 
 

-extern task_t          kernel_task;
-extern boolean_t       is_kerneltask(task_t);
+__BEGIN_DECLS

 
 

-/* Temporarily hold all threads in a task */
-extern kern_return_t   task_hold(
-                               task_t  task);
+extern task_t   current_task(void);

 
 

-/* Release temporary hold on all threads in a task */
-extern kern_return_t   task_release(
-                               task_t  task);
+extern void             task_reference(task_t   task);
+extern bool task_is_driver(task_t task);

 
 

-/* Get a task prepared for major changes */
-extern kern_return_t   task_halt(
-                               task_t  task);
+#define TF_NONE                 0

 
 

-/* Take reference on task (make sure it doesn't go away) */
-extern void            task_reference(task_t   task);
+#define TWF_NONE                 0
+#define TRW_LRETURNWAIT          0x01           /* task is waiting for fork/posix_spawn/exec to complete */
+#define TRW_LRETURNWAITER        0x02           /* task is waiting for TRW_LRETURNWAIT to get cleared */

 
 

-/* Try to take a reference on task, return false if it would block */
-extern boolean_t       task_reference_try(task_t task);
+/* task clear return wait flags */
+#define TCRW_CLEAR_INITIAL_WAIT   0x1
+#define TCRW_CLEAR_FINAL_WAIT     0x2
+#define TCRW_CLEAR_ALL_WAIT       (TCRW_CLEAR_INITIAL_WAIT | TCRW_CLEAR_FINAL_WAIT)

 
 

-/* Remove reference to task */
-extern void            task_deallocate(task_t  task);
+
+#define TPF_NONE                0
+#define TPF_EXEC_COPY           0x00000002                              /* task is the new copy of an exec */
+
+
+__END_DECLS
+
+#endif  /* MACH_KERNEL_PRIVATE */
+
+__BEGIN_DECLS
+
+#ifdef KERNEL_PRIVATE
+extern boolean_t                task_is_app_suspended(task_t task);
+#endif
+
+#ifdef  XNU_KERNEL_PRIVATE
+
+/* Hold all threads in a task */
+extern kern_return_t    task_hold(
+       task_t          task);
+
+/* Wait for task to stop running, either just to get off CPU or to cease being runnable */
+extern kern_return_t    task_wait(
+       task_t          task,
+       boolean_t       until_not_runnable);
+
+/* Release hold on all threads in a task */
+extern kern_return_t    task_release(
+       task_t          task);
+
+/* Suspend/resume a task where the kernel owns the suspend count */
+extern kern_return_t    task_suspend_internal(          task_t          task);
+extern kern_return_t    task_resume_internal(           task_t          task);
+
+/* Suspends a task by placing a hold on its threads */
+extern kern_return_t    task_pidsuspend(
+       task_t          task);
+
+/* Resumes a previously paused task */
+extern kern_return_t    task_pidresume(
+       task_t          task);
+
+extern kern_return_t    task_send_trace_memory(
+       task_t          task,
+       uint32_t        pid,
+       uint64_t        uniqueid);
+
+extern void             task_remove_turnstile_watchports(
+       task_t          task);
+
+extern void             task_transfer_turnstile_watchports(
+       task_t          old_task,
+       task_t          new_task,
+       thread_t        new_thread);
+
+#if DEVELOPMENT || DEBUG
+
+extern kern_return_t    task_disconnect_page_mappings(
+       task_t          task);
+#endif
+
+extern void                     tasks_system_suspend(boolean_t suspend);
+
+#if CONFIG_FREEZE
+
+/* Freeze a task's resident pages */
+extern kern_return_t    task_freeze(
+       task_t          task,
+       uint32_t        *purgeable_count,
+       uint32_t        *wired_count,
+       uint32_t        *clean_count,
+       uint32_t        *dirty_count,
+       uint32_t        dirty_budget,
+       uint32_t        *shared_count,
+       int             *freezer_error_code,
+       boolean_t       eval_only);
+
+/* Thaw a currently frozen task */
+extern kern_return_t    task_thaw(
+       task_t          task);
+
+#endif /* CONFIG_FREEZE */
+
+/* Halt all other threads in the current task */
+extern kern_return_t    task_start_halt(
+       task_t          task);
+
+/* Wait for other threads to halt and free halting task resources */
+extern void             task_complete_halt(
+       task_t          task);
+
+extern kern_return_t    task_terminate_internal(
+       task_t                  task);
+
+extern kern_return_t    task_create_internal(
+       task_t          parent_task,
+       coalition_t     *parent_coalitions,
+       boolean_t       inherit_memory,
+       boolean_t       is_64bit,
+       boolean_t       is_64bit_data,
+       uint32_t        flags,
+       uint32_t        procflags,
+       uint8_t         t_returnwaitflags,
+       task_t          *child_task);                                                   /* OUT */
+
+extern kern_return_t    task_info(
+       task_t                  task,
+       task_flavor_t           flavor,
+       task_info_t             task_info_out,
+       mach_msg_type_number_t  *task_info_count);
+
+extern void             task_power_info_locked(
+       task_t                  task,
+       task_power_info_t       info,
+       gpu_energy_data_t       gpu_energy,
+       task_power_info_v2_t    infov2,
+       uint64_t                *runnable_time);
+
+extern uint64_t         task_gpu_utilisation(
+       task_t   task);
+
+extern uint64_t         task_energy(
+       task_t   task);
+
+extern uint64_t         task_cpu_ptime(
+       task_t   task);
+extern void             task_update_cpu_time_qos_stats(
+       task_t   task,
+       uint64_t *eqos_stats,
+       uint64_t *rqos_stats);
+
+extern void             task_vtimer_set(
+       task_t          task,
+       integer_t       which);
+
+extern void             task_vtimer_clear(
+       task_t          task,
+       integer_t       which);
+
+extern void             task_vtimer_update(
+       task_t          task,
+       integer_t       which,
+       uint32_t        *microsecs);
+
+#define TASK_VTIMER_USER                0x01
+#define TASK_VTIMER_PROF                0x02
+#define TASK_VTIMER_RLIM                0x04
+
+extern void             task_set_64bit(
+       task_t          task,
+       boolean_t       is_64bit,
+       boolean_t       is_64bit_data);
+
+extern boolean_t        task_get_64bit_data(
+       task_t task);
+
+extern void     task_set_platform_binary(
+       task_t task,
+       boolean_t is_platform);
+extern bool     task_set_ca_client_wi(
+       task_t task,
+       boolean_t ca_client_wi);
+
+extern void             task_set_dyld_info(
+       task_t          task,
+       mach_vm_address_t addr,
+       mach_vm_size_t size);
+
+extern void task_set_mach_header_address(
+       task_t task,
+       mach_vm_address_t addr);
+
+/* Get number of activations in a task */
+extern int              get_task_numacts(
+       task_t          task);
+
+struct label;
+extern kern_return_t task_collect_crash_info(
+       task_t task,
+#if CONFIG_MACF
+       struct label *crash_label,
+#endif
+       int is_corpse_fork);
+void task_port_notify(mach_msg_header_t *msg);
+void task_wait_till_threads_terminate_locked(task_t task);

 
 /* JMM - should just be temporary (implementation in bsd_kern still) */
 
 /* JMM - should just be temporary (implementation in bsd_kern still) */

-extern void    *get_bsdtask_info(task_t);
-extern void    set_bsdtask_info(task_t,void *);
+extern void     set_bsdtask_info(task_t, void *);
+extern uint32_t set_task_loadTag(task_t task, uint32_t loadTag);
+extern vm_map_t get_task_map_reference(task_t);
+extern vm_map_t swap_task_map(task_t, thread_t, vm_map_t);
+extern pmap_t   get_task_pmap(task_t);
+extern uint64_t get_task_resident_size(task_t);
+extern uint64_t get_task_compressed(task_t);
+extern uint64_t get_task_resident_max(task_t);
+extern uint64_t get_task_phys_footprint(task_t);
+#if CONFIG_LEDGER_INTERVAL_MAX
+extern uint64_t get_task_phys_footprint_interval_max(task_t, int reset);
+#endif /* CONFIG_FOOTPRINT_INTERVAL_MAX */
+extern uint64_t get_task_phys_footprint_lifetime_max(task_t);
+extern uint64_t get_task_phys_footprint_limit(task_t);
+extern uint64_t get_task_purgeable_size(task_t);
+extern uint64_t get_task_cpu_time(task_t);
+extern uint64_t get_task_dispatchqueue_offset(task_t);
+extern uint64_t get_task_dispatchqueue_serialno_offset(task_t);
+extern uint64_t get_task_dispatchqueue_label_offset(task_t);
+extern uint64_t get_task_uniqueid(task_t task);
+extern int      get_task_version(task_t task);
+
+extern uint64_t get_task_internal(task_t);
+extern uint64_t get_task_internal_compressed(task_t);
+extern uint64_t get_task_purgeable_nonvolatile(task_t);
+extern uint64_t get_task_purgeable_nonvolatile_compressed(task_t);
+extern uint64_t get_task_iokit_mapped(task_t);
+extern uint64_t get_task_alternate_accounting(task_t);
+extern uint64_t get_task_alternate_accounting_compressed(task_t);
+extern uint64_t get_task_memory_region_count(task_t);
+extern uint64_t get_task_page_table(task_t);
+extern uint64_t get_task_network_nonvolatile(task_t);
+extern uint64_t get_task_network_nonvolatile_compressed(task_t);
+extern uint64_t get_task_wired_mem(task_t);
+extern uint32_t get_task_loadTag(task_t task);
+
+extern kern_return_t task_convert_phys_footprint_limit(int, int *);
+extern kern_return_t task_set_phys_footprint_limit_internal(task_t, int, int *, boolean_t, boolean_t);
+extern kern_return_t task_get_phys_footprint_limit(task_t task, int *limit_mb);
+
+/* Jetsam memlimit attributes */
+extern boolean_t task_get_memlimit_is_active(task_t task);
+extern boolean_t task_get_memlimit_is_fatal(task_t task);
+extern void task_set_memlimit_is_active(task_t task, boolean_t memlimit_is_active);
+extern void task_set_memlimit_is_fatal(task_t task, boolean_t memlimit_is_fatal);
+extern boolean_t task_has_triggered_exc_resource(task_t task, boolean_t memlimit_is_active);
+extern void task_mark_has_triggered_exc_resource(task_t task, boolean_t memlimit_is_active);
+
+extern void task_set_thread_limit(task_t task, uint16_t thread_limit);
+
+
+extern boolean_t        is_kerneltask(task_t task);
+extern boolean_t        is_corpsetask(task_t task);
+
+extern kern_return_t check_actforsig(task_t task, thread_t thread, int setast);
+
+extern kern_return_t machine_task_get_state(
+       task_t task,
+       int flavor,
+       thread_state_t state,
+       mach_msg_type_number_t *state_count);
+
+extern kern_return_t machine_task_set_state(
+       task_t task,
+       int flavor,
+       thread_state_t state,
+       mach_msg_type_number_t state_count);
+
+extern void machine_task_terminate(task_t task);
+
+struct _task_ledger_indices {
+       int cpu_time;
+       int tkm_private;
+       int tkm_shared;
+       int phys_mem;
+       int wired_mem;
+       int internal;
+       int iokit_mapped;
+       int alternate_accounting;
+       int alternate_accounting_compressed;
+       int page_table;
+       int phys_footprint;
+       int internal_compressed;
+       int purgeable_volatile;
+       int purgeable_nonvolatile;
+       int purgeable_volatile_compressed;
+       int purgeable_nonvolatile_compressed;
+       int tagged_nofootprint;
+       int tagged_footprint;
+       int tagged_nofootprint_compressed;
+       int tagged_footprint_compressed;
+       int network_volatile;
+       int network_nonvolatile;
+       int network_volatile_compressed;
+       int network_nonvolatile_compressed;
+       int media_nofootprint;
+       int media_footprint;
+       int media_nofootprint_compressed;
+       int media_footprint_compressed;
+       int graphics_nofootprint;
+       int graphics_footprint;
+       int graphics_nofootprint_compressed;
+       int graphics_footprint_compressed;
+       int neural_nofootprint;
+       int neural_footprint;
+       int neural_nofootprint_compressed;
+       int neural_footprint_compressed;
+       int platform_idle_wakeups;
+       int interrupt_wakeups;
+#if CONFIG_SCHED_SFI
+       int sfi_wait_times[MAX_SFI_CLASS_ID];
+#endif /* CONFIG_SCHED_SFI */
+       int cpu_time_billed_to_me;
+       int cpu_time_billed_to_others;
+       int physical_writes;
+       int logical_writes;
+       int logical_writes_to_external;
+       int energy_billed_to_me;
+       int energy_billed_to_others;
+#if DEBUG || DEVELOPMENT
+       int pages_grabbed;
+       int pages_grabbed_kern;
+       int pages_grabbed_iopl;
+       int pages_grabbed_upl;
+#endif
+};
+extern struct _task_ledger_indices task_ledgers;
+
+/* requires task to be unlocked, returns a referenced thread */
+thread_t task_findtid(task_t task, uint64_t tid);
+int pid_from_task(task_t task);
+
+extern kern_return_t task_wakeups_monitor_ctl(task_t task, uint32_t *rate_hz, int32_t *flags);
+extern kern_return_t task_cpu_usage_monitor_ctl(task_t task, uint32_t *flags);
+extern void task_rollup_accounting_info(task_t new_task, task_t parent_task);
+extern kern_return_t task_io_monitor_ctl(task_t task, uint32_t *flags);
+extern void task_set_did_exec_flag(task_t task);
+extern void task_clear_exec_copy_flag(task_t task);
+extern boolean_t task_is_exec_copy(task_t);
+extern boolean_t task_did_exec(task_t task);
+#ifdef CONFIG_32BIT_TELEMETRY
+extern boolean_t task_consume_32bit_log_flag(task_t task);
+extern void task_set_32bit_log_flag(task_t task);
+#endif /* CONFIG_32BIT_TELEMETRY */
+extern boolean_t task_is_active(task_t task);
+extern boolean_t task_is_halting(task_t task);
+extern void task_clear_return_wait(task_t task, uint32_t flags);
+extern void task_wait_to_return(void) __attribute__((noreturn));
+extern event_t task_get_return_wait_event(task_t task);
+
+extern void task_atm_reset(task_t task);
+extern void task_bank_reset(task_t task);
+extern void task_bank_init(task_t task);
+
+#if CONFIG_ARCADE
+extern void task_prep_arcade(task_t task, thread_t thread);
+#endif /* CONFIG_ARCADE */
+
+extern int task_pid(task_t task);
+extern boolean_t task_has_assertions(task_t task);
+/* End task_policy */
+
+extern void      task_set_gpu_denied(task_t task, boolean_t denied);
+extern boolean_t task_is_gpu_denied(task_t task);
+
+extern queue_head_t * task_io_user_clients(task_t task);
+extern void     task_set_message_app_suspended(task_t task, boolean_t enable);
+
+extern void task_copy_fields_for_exec(task_t dst_task, task_t src_task);
+
+extern void task_copy_vmobjects(task_t task, vm_object_query_t query, int len, int64_t* num);
+
+#endif  /* XNU_KERNEL_PRIVATE */
+
+#ifdef  KERNEL_PRIVATE
+
+extern void     *get_bsdtask_info(task_t);
+extern void     *get_bsdthreadtask_info(thread_t);
+extern void task_bsdtask_kill(task_t);

 extern vm_map_t get_task_map(task_t);
 extern vm_map_t get_task_map(task_t);

-extern vm_map_t        swap_task_map(task_t, vm_map_t);
-extern pmap_t  get_task_pmap(task_t);
-#endif /* _KERN_TASK_H_ */
+extern ledger_t get_task_ledger(task_t);
+
+extern boolean_t get_task_pidsuspended(task_t);
+extern boolean_t get_task_suspended(task_t);
+extern boolean_t get_task_frozen(task_t);
+
+/* Convert from a task to a port */
+extern ipc_port_t convert_task_to_port(task_t);
+extern ipc_port_t convert_task_name_to_port(task_name_t);
+extern ipc_port_t convert_task_inspect_to_port(task_inspect_t);
+extern ipc_port_t convert_task_suspension_token_to_port(task_suspension_token_t task);
+
+/* Convert from a port (in this case, an SO right to a task's resume port) to a task. */
+extern task_suspension_token_t convert_port_to_task_suspension_token(ipc_port_t port);
+
+extern boolean_t task_suspension_notify(mach_msg_header_t *);
+
+#define TASK_WRITE_IMMEDIATE                 0x1
+#define TASK_WRITE_DEFERRED                  0x2
+#define TASK_WRITE_INVALIDATED               0x4
+#define TASK_WRITE_METADATA                  0x8
+extern void     task_update_logical_writes(task_t task, uint32_t io_size, int flags, void *vp);
+
+#if CONFIG_SECLUDED_MEMORY
+extern void task_set_can_use_secluded_mem(
+       task_t task,
+       boolean_t can_use_secluded_mem);
+extern void task_set_could_use_secluded_mem(
+       task_t task,
+       boolean_t could_use_secluded_mem);
+extern void task_set_could_also_use_secluded_mem(
+       task_t task,
+       boolean_t could_also_use_secluded_mem);
+extern boolean_t task_can_use_secluded_mem(
+       task_t task,
+       boolean_t is_allocate);
+extern boolean_t task_could_use_secluded_mem(task_t task);
+extern boolean_t task_could_also_use_secluded_mem(task_t task);
+#endif /* CONFIG_SECLUDED_MEMORY */
+
+extern void task_set_darkwake_mode(task_t, boolean_t);
+extern boolean_t task_get_darkwake_mode(task_t);
+
+#if __arm64__
+extern void task_set_legacy_footprint(task_t task);
+extern void task_set_extra_footprint_limit(task_t task);
+#endif /* __arm64__ */
+
+#if CONFIG_MACF
+extern struct label *get_task_crash_label(task_t task);
+#endif /* CONFIG_MACF */
+
+extern int get_task_cdhash(task_t task, char cdhash[]);
+
+#endif  /* KERNEL_PRIVATE */
+
+extern task_t   kernel_task;
+
+extern void             task_deallocate(
+       task_t          task);
+
+extern void             task_name_deallocate(
+       task_name_t             task_name);
+
+extern void             task_inspect_deallocate(
+       task_inspect_t          task_inspect);
+
+extern void             task_suspension_token_deallocate(
+       task_suspension_token_t token);
+
+extern boolean_t task_self_region_footprint(void);
+extern void task_self_region_footprint_set(boolean_t newval);
+extern void task_ledgers_footprint(ledger_t ledger,
+    ledger_amount_t *ledger_resident,
+    ledger_amount_t *ledger_compressed);
+extern void task_set_memory_ownership_transfer(
+       task_t task,
+       boolean_t value);
+
+__END_DECLS
+
+#endif  /* _KERN_TASK_H_ */