X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/0b4e3aa066abc0728aacb4bbeb86f53f9737156e..HEAD:/osfmk/kern/bsd_kern.c diff --git a/osfmk/kern/bsd_kern.c b/osfmk/kern/bsd_kern.c index 5648cb387..aafd71301 100644 --- a/osfmk/kern/bsd_kern.c +++ b/osfmk/kern/bsd_kern.c @@ -1,100 +1,174 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2018 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, - * 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@ */ #include -#include -#include +#include +#include + +#include +#include +#include #include -#include #include #include -#include -#include -#include +#include #include #include +#include +#include +#include +#include /* last */ +#include +#include +#include +#include -#undef thread_should_halt -#undef ipc_port_release -#undef thread_ast_set -#undef thread_ast_clear +#if MONOTONIC +#include +#include +#endif /* MONOTONIC */ + +#include +#include /* CS_CDHASH_LEN */ -decl_simple_lock_data(extern,reaper_lock) -extern queue_head_t reaper_queue; +#undef thread_should_halt /* BSD KERN COMPONENT INTERFACE */ -vm_address_t bsd_init_task = 0; -char init_task_failure_data[1024]; - -thread_act_t get_firstthread(task_t); -vm_map_t get_task_map(task_t); -ipc_space_t get_task_ipcspace(task_t); -boolean_t is_kerneltask(task_t); -boolean_t is_thread_idle(thread_t); -boolean_t is_thread_running(thread_t); -thread_shuttle_t getshuttle_thread( thread_act_t); -thread_act_t getact_thread( thread_shuttle_t); -vm_offset_t get_map_min( vm_map_t); -vm_offset_t get_map_max( vm_map_t); +extern unsigned int not_in_kdp; /* Skip acquiring locks if we're in kdp */ + +thread_t get_firstthread(task_t); int get_task_userstop(task_t); -int get_thread_userstop(thread_act_t); -int inc_task_userstop(task_t); -boolean_t thread_should_abort(thread_shuttle_t); +int get_thread_userstop(thread_t); boolean_t current_thread_aborted(void); -void task_act_iterate_wth_args(task_t, void(*)(thread_act_t, void *), void *); -void ipc_port_release(ipc_port_t); -void thread_ast_set(thread_act_t, ast_t); -void thread_ast_clear(thread_act_t, ast_t); -boolean_t is_thread_active(thread_t); -event_t get_thread_waitevent(thread_t); -kern_return_t get_thread_waitresult(thread_t); -vm_size_t get_vmmap_size(vm_map_t); -int get_vmmap_entries(vm_map_t); -int get_task_numacts(task_t); -thread_act_t get_firstthread(task_t task); -kern_return_t get_signalact(task_t , thread_act_t *, thread_t *, int); +void task_act_iterate_wth_args(task_t, void (*)(thread_t, void *), void *); +kern_return_t get_signalact(task_t, thread_t *, int); +int fill_task_rusage(task_t task, rusage_info_current *ri); +int fill_task_io_rusage(task_t task, rusage_info_current *ri); +int fill_task_qos_rusage(task_t task, rusage_info_current *ri); +void fill_task_monotonic_rusage(task_t task, rusage_info_current *ri); +uint64_t get_task_logical_writes(task_t task, boolean_t external); +void fill_task_billed_usage(task_t task, rusage_info_current *ri); +void task_bsdtask_kill(task_t); +extern uint64_t get_dispatchqueue_serialno_offset_from_proc(void *p); +extern uint64_t get_dispatchqueue_label_offset_from_proc(void *p); +extern uint64_t proc_uniqueid(void *p); +extern int proc_pidversion(void *p); +extern int proc_getcdhash(void *p, char *cdhash); + +#if MACH_BSD +extern void psignal(void *, int); +#endif + +/* + * + */ +void * +get_bsdtask_info(task_t t) +{ + proc_require(t->bsd_info, PROC_REQUIRE_ALLOW_NULL | PROC_REQUIRE_ALLOW_KERNPROC); + return t->bsd_info; +} + +void +task_bsdtask_kill(task_t t) +{ + void * bsd_info = get_bsdtask_info(t); + if (bsd_info != NULL) { + psignal(bsd_info, SIGKILL); + } +} /* * */ -void *get_bsdtask_info(task_t t) +void * +get_bsdthreadtask_info(thread_t th) { - return(t->bsd_info); + void *bsd_info = NULL; + + if (th->task) { + bsd_info = get_bsdtask_info(th->task); + } + return bsd_info; } /* * */ -void set_bsdtask_info(task_t t,void * v) +void +set_bsdtask_info(task_t t, void * v) { - t->bsd_info=v; + t->bsd_info = v; } /* * */ -void *get_bsdthread_info(thread_act_t th) +void * +get_bsdthread_info(thread_t th) +{ + return th->uthread; +} + +/* + * This is used to remember any FS error from VNOP_PAGEIN code when + * invoked under vm_fault(). The value is an errno style value. It can + * be retrieved by exception handlers using thread_get_state(). + */ +void +set_thread_pagein_error(thread_t th, int error) +{ + assert(th == current_thread()); + if (error == 0 || th->t_pagein_error == 0) { + th->t_pagein_error = error; + } +} + +#if defined(__x86_64__) +/* + * Returns non-zero if the thread has a non-NULL task + * and that task has an LDT. + */ +int +thread_task_has_ldt(thread_t th) { - return(th->uthread); + return th->task && th->task->i386_ldt != 0; +} +#endif /* __x86_64__ */ + +/* + * XXX + */ +int get_thread_lock_count(thread_t th); /* forced forward */ +int +get_thread_lock_count(thread_t th) +{ + return th->mutex_count; } /* @@ -103,323 +177,673 @@ void *get_bsdthread_info(thread_act_t th) * can't go away, so we make sure it is still active after * retrieving the first thread for extra safety. */ -thread_act_t get_firstthread(task_t task) +thread_t +get_firstthread(task_t task) { - thread_act_t thr_act; + thread_t thread = (thread_t)(void *)queue_first(&task->threads); + + if (queue_end(&task->threads, (queue_entry_t)thread)) { + thread = THREAD_NULL; + } - thr_act = (thread_act_t)queue_first(&task->thr_acts); - if (thr_act == (thread_act_t)&task->thr_acts) - thr_act = THR_ACT_NULL; - if (!task->active) - return(THR_ACT_NULL); - return(thr_act); + if (!task->active) { + return THREAD_NULL; + } + + return thread; } -kern_return_t get_signalact(task_t task,thread_act_t * thact, thread_t * thshut, int setast) +kern_return_t +get_signalact( + task_t task, + thread_t *result_out, + int setast) { - - thread_act_t inc; - thread_act_t ninc; - thread_act_t thr_act; - thread_t th; + kern_return_t result = KERN_SUCCESS; + thread_t inc, thread = THREAD_NULL; task_lock(task); + if (!task->active) { task_unlock(task); - return(KERN_FAILURE); - } - - thr_act = THR_ACT_NULL; - for (inc = (thread_act_t)queue_first(&task->thr_acts); - inc != (thread_act_t)&task->thr_acts; - inc = ninc) { - th = act_lock_thread(inc); - if ((inc->active) && ((th->state & TH_ABORT) != TH_ABORT)) { - thr_act = inc; - break; - } - act_unlock_thread(inc); - ninc = (thread_act_t)queue_next(&inc->thr_acts); - } -out: - if (thact) - *thact = thr_act; - - if (thshut) - *thshut = thr_act? thr_act->thread: THREAD_NULL ; - if (thr_act) { - if (setast) { - thread_ast_set(thr_act, AST_BSD); - if (current_act() == thr_act) - ast_on(AST_BSD); + + return KERN_FAILURE; + } + + for (inc = (thread_t)(void *)queue_first(&task->threads); + !queue_end(&task->threads, (queue_entry_t)inc);) { + thread_mtx_lock(inc); + if (inc->active && + (inc->sched_flags & TH_SFLAG_ABORTED_MASK) != TH_SFLAG_ABORT) { + thread = inc; + break; + } + thread_mtx_unlock(inc); + + inc = (thread_t)(void *)queue_next(&inc->task_threads); + } + + if (result_out) { + *result_out = thread; + } + + if (thread) { + if (setast) { + act_set_astbsd(thread); } - act_unlock_thread(thr_act); - } + + thread_mtx_unlock(thread); + } else { + result = KERN_FAILURE; + } + task_unlock(task); - if (thr_act) - return(KERN_SUCCESS); - else - return(KERN_FAILURE); + return result; } -kern_return_t check_actforsig(task_t task, thread_act_t * thact, thread_t * thshut, int setast) +kern_return_t +check_actforsig( + task_t task, + thread_t thread, + int setast) { - - thread_act_t inc; - thread_act_t ninc; - thread_act_t thr_act; - thread_t th; - int found=0; + kern_return_t result = KERN_FAILURE; + thread_t inc; task_lock(task); + if (!task->active) { task_unlock(task); - return(KERN_FAILURE); - } - - thr_act = THR_ACT_NULL; - for (inc = (thread_act_t)queue_first(&task->thr_acts); - inc != (thread_act_t)&task->thr_acts; - inc = ninc) { - - if (inc != thact) { - ninc = (thread_act_t)queue_next(&inc->thr_acts); - continue; - } - th = act_lock_thread(inc); - if ((inc->active) && ((th->state & TH_ABORT) != TH_ABORT)) { - found = 1; - thr_act = inc; - break; - } - act_unlock_thread(inc); - /* ninc = (thread_act_t)queue_next(&inc->thr_acts); */ + + return KERN_FAILURE; + } + + for (inc = (thread_t)(void *)queue_first(&task->threads); + !queue_end(&task->threads, (queue_entry_t)inc);) { + if (inc == thread) { + thread_mtx_lock(inc); + + if (inc->active && + (inc->sched_flags & TH_SFLAG_ABORTED_MASK) != TH_SFLAG_ABORT) { + result = KERN_SUCCESS; break; - } -out: - if (found) { - if (thshut) - *thshut = thr_act? thr_act->thread: THREAD_NULL ; - if (setast) { - thread_ast_set(thr_act, AST_BSD); - if (current_act() == thr_act) - ast_on(AST_BSD); - } - act_unlock_thread(thr_act); - } - task_unlock(task); + } + + thread_mtx_unlock(inc); + break; + } + + inc = (thread_t)(void *)queue_next(&inc->task_threads); + } + + if (result == KERN_SUCCESS) { + if (setast) { + act_set_astbsd(thread); + } + + thread_mtx_unlock(thread); + } + + task_unlock(task); + + return result; +} - if (found) - return(KERN_SUCCESS); - else - return(KERN_FAILURE); +ledger_t +get_task_ledger(task_t t) +{ + return t->ledger; } /* - * + * This is only safe to call from a thread executing in + * in the task's context or if the task is locked. Otherwise, + * the map could be switched for the task (and freed) before + * we go to return it here. */ -vm_map_t get_task_map(task_t t) +vm_map_t +get_task_map(task_t t) { - return(t->map); + return t->map; +} + +vm_map_t +get_task_map_reference(task_t t) +{ + vm_map_t m; + + if (t == NULL) { + return VM_MAP_NULL; + } + + task_lock(t); + if (!t->active) { + task_unlock(t); + return VM_MAP_NULL; + } + m = t->map; + vm_map_reference(m); + task_unlock(t); + return m; } /* * */ -ipc_space_t get_task_ipcspace(task_t t) +ipc_space_t +get_task_ipcspace(task_t t) +{ + return t->itk_space; +} + +int +get_task_numacts(task_t t) { - return(t->itk_space); + return t->thread_count; } -int get_task_numacts(task_t t) +/* does this machine need 64bit register set for signal handler */ +int +is_64signalregset(void) { - return(t->thr_act_count); + if (task_has_64Bit_data(current_task())) { + return 1; + } + + return 0; } /* - * Reset the current task's map by taking a reference - * on the new map. The old map reference is returned. + * Swap in a new map for the task/thread pair; the old map reference is + * returned. Also does a pmap switch if thread provided is current thread. */ vm_map_t -swap_task_map(task_t task,vm_map_t map) +swap_task_map(task_t task, thread_t thread, vm_map_t map) { vm_map_t old_map; + boolean_t doswitch = (thread == current_thread()) ? TRUE : FALSE; + + if (task != thread->task) { + panic("swap_task_map"); + } - vm_map_reference(map); task_lock(task); + mp_disable_preemption(); + old_map = task->map; - task->map = map; + thread->map = task->map = map; + vm_commit_pagezero_status(map); + + if (doswitch) { + PMAP_SWITCH_USER(thread, map, cpu_number()); + } + mp_enable_preemption(); task_unlock(task); + return old_map; } /* - * Reset the current act map. - * The caller donates us a reference to the new map - * and we donote our reference to the old map to him. + * + * This is only safe to call from a thread executing in + * in the task's context or if the task is locked. Otherwise, + * the map could be switched for the task (and freed) before + * we go to return it here. */ -vm_map_t -swap_act_map(thread_act_t thr_act,vm_map_t map) +pmap_t +get_task_pmap(task_t t) { - vm_map_t old_map; - - act_lock(thr_act); - old_map = thr_act->map; - thr_act->map = map; - act_unlock(thr_act); - return old_map; + return t->map->pmap; } /* * */ -pmap_t get_task_pmap(task_t t) +uint64_t +get_task_resident_size(task_t task) { - return(t->map->pmap); + vm_map_t map; + + map = (task == kernel_task) ? kernel_map: task->map; + return (uint64_t)pmap_resident_count(map->pmap) * PAGE_SIZE_64; +} + +uint64_t +get_task_compressed(task_t task) +{ + vm_map_t map; + + map = (task == kernel_task) ? kernel_map: task->map; + return (uint64_t)pmap_compressed(map->pmap) * PAGE_SIZE_64; +} + +uint64_t +get_task_resident_max(task_t task) +{ + vm_map_t map; + + map = (task == kernel_task) ? kernel_map: task->map; + return (uint64_t)pmap_resident_max(map->pmap) * PAGE_SIZE_64; } /* - * + * Get the balance for a given field in the task ledger. + * Returns 0 if the entry is invalid. */ -pmap_t get_map_pmap(vm_map_t map) +static uint64_t +get_task_ledger_balance(task_t task, int entry) { - return(map->pmap); + ledger_amount_t balance = 0; + + ledger_get_balance(task->ledger, entry, &balance); + return balance; } + +uint64_t +get_task_purgeable_size(task_t task) +{ + kern_return_t ret; + ledger_amount_t balance = 0; + uint64_t volatile_size = 0; + + ret = ledger_get_balance(task->ledger, task_ledgers.purgeable_volatile, &balance); + if (ret != KERN_SUCCESS) { + return 0; + } + + volatile_size += balance; + + ret = ledger_get_balance(task->ledger, task_ledgers.purgeable_volatile_compressed, &balance); + if (ret != KERN_SUCCESS) { + return 0; + } + + volatile_size += balance; + + return volatile_size; +} + /* * */ -task_t get_threadtask(thread_act_t th) +uint64_t +get_task_phys_footprint(task_t task) { - return(th->task); + return get_task_ledger_balance(task, task_ledgers.phys_footprint); } - +#if CONFIG_LEDGER_INTERVAL_MAX /* * */ -boolean_t is_thread_idle(thread_t th) +uint64_t +get_task_phys_footprint_interval_max(task_t task, int reset) { - return((th->state & TH_IDLE) == TH_IDLE); + kern_return_t ret; + ledger_amount_t max; + + ret = ledger_get_interval_max(task->ledger, task_ledgers.phys_footprint, &max, reset); + + if (KERN_SUCCESS == ret) { + return max; + } + + return 0; } +#endif /* CONFIG_LEDGER_INTERVAL_MAX */ /* * */ -boolean_t is_thread_running(thread_t th) +uint64_t +get_task_phys_footprint_lifetime_max(task_t task) { - return((th->state & TH_RUN) == TH_RUN); + kern_return_t ret; + ledger_amount_t max; + + ret = ledger_get_lifetime_max(task->ledger, task_ledgers.phys_footprint, &max); + + if (KERN_SUCCESS == ret) { + return max; + } + + return 0; } /* * */ -thread_shuttle_t -getshuttle_thread( - thread_act_t th) +uint64_t +get_task_phys_footprint_limit(task_t task) { -#ifdef DEBUG - assert(th->thread); -#endif - return(th->thread); + kern_return_t ret; + ledger_amount_t max; + + ret = ledger_get_limit(task->ledger, task_ledgers.phys_footprint, &max); + if (KERN_SUCCESS == ret) { + return max; + } + + return 0; +} + +uint64_t +get_task_internal(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.internal); +} + +uint64_t +get_task_internal_compressed(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.internal_compressed); +} + +uint64_t +get_task_purgeable_nonvolatile(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.purgeable_nonvolatile); +} + +uint64_t +get_task_purgeable_nonvolatile_compressed(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.purgeable_nonvolatile_compressed); +} + +uint64_t +get_task_alternate_accounting(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.alternate_accounting); +} + +uint64_t +get_task_alternate_accounting_compressed(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.alternate_accounting_compressed); +} + +uint64_t +get_task_page_table(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.page_table); +} + +#if CONFIG_FREEZE +uint64_t +get_task_frozen_to_swap(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.frozen_to_swap); +} +#endif /* CONFIG_FREEZE */ + +uint64_t +get_task_iokit_mapped(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.iokit_mapped); +} + +uint64_t +get_task_network_nonvolatile(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.network_nonvolatile); +} + +uint64_t +get_task_network_nonvolatile_compressed(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.network_nonvolatile_compressed); +} + +uint64_t +get_task_wired_mem(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.wired_mem); +} + +uint64_t +get_task_tagged_footprint(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.tagged_footprint, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + +uint64_t +get_task_tagged_footprint_compressed(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.tagged_footprint_compressed, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + +uint64_t +get_task_media_footprint(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.media_footprint, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + +uint64_t +get_task_media_footprint_compressed(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.media_footprint_compressed, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + +uint64_t +get_task_graphics_footprint(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.graphics_footprint, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + + +uint64_t +get_task_graphics_footprint_compressed(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.graphics_footprint_compressed, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + +uint64_t +get_task_neural_footprint(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.neural_footprint, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + +uint64_t +get_task_neural_footprint_compressed(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.neural_footprint_compressed, &credit, &debit); + if (KERN_SUCCESS == ret) { + return credit - debit; + } + + return 0; +} + +uint64_t +get_task_cpu_time(task_t task) +{ + return get_task_ledger_balance(task, task_ledgers.cpu_time); +} + +uint32_t +get_task_loadTag(task_t task) +{ + return os_atomic_load(&task->loadTag, relaxed); +} + +uint32_t +set_task_loadTag(task_t task, uint32_t loadTag) +{ + return os_atomic_xchg(&task->loadTag, loadTag, relaxed); } /* * */ -thread_act_t -getact_thread( - thread_shuttle_t th) +task_t +get_threadtask(thread_t th) { -#ifdef DEBUG - assert(th->top_act); -#endif - return(th->top_act); + return th->task; } /* * */ -vm_offset_t +vm_map_offset_t get_map_min( - vm_map_t map) + vm_map_t map) { - return(vm_map_min(map)); + return vm_map_min(map); } /* * */ -vm_offset_t +vm_map_offset_t get_map_max( - vm_map_t map) + vm_map_t map) { - return(vm_map_max(map)); + return vm_map_max(map); } -vm_size_t +vm_map_size_t get_vmmap_size( - vm_map_t map) + vm_map_t map) { - return(map->size); + return vm_map_adjusted_size(map); } - int +get_task_page_size( + task_t task) +{ + return vm_map_page_size(task->map); +} + +#if CONFIG_COREDUMP + +static int get_vmsubmap_entries( - vm_map_t map, - vm_object_offset_t start, - vm_object_offset_t end) + vm_map_t map, + vm_object_offset_t start, + vm_object_offset_t end) { - int total_entries = 0; - vm_map_entry_t entry; + int total_entries = 0; + vm_map_entry_t entry; - vm_map_lock(map); + if (not_in_kdp) { + vm_map_lock(map); + } entry = vm_map_first_entry(map); - while((entry != vm_map_to_entry(map)) && (entry->vme_start < start)) { + while ((entry != vm_map_to_entry(map)) && (entry->vme_start < start)) { entry = entry->vme_next; } - while((entry != vm_map_to_entry(map)) && (entry->vme_start < end)) { - if(entry->is_sub_map) { - total_entries += - get_vmsubmap_entries(entry->object.sub_map, - entry->offset, - entry->offset + - (entry->vme_end - entry->vme_start)); + while ((entry != vm_map_to_entry(map)) && (entry->vme_start < end)) { + if (entry->is_sub_map) { + total_entries += + get_vmsubmap_entries(VME_SUBMAP(entry), + VME_OFFSET(entry), + (VME_OFFSET(entry) + + entry->vme_end - + entry->vme_start)); } else { total_entries += 1; } entry = entry->vme_next; } - vm_map_unlock(map); - return(total_entries); + if (not_in_kdp) { + vm_map_unlock(map); + } + return total_entries; } int get_vmmap_entries( - vm_map_t map) + vm_map_t map) { - int total_entries = 0; - vm_map_entry_t entry; + int total_entries = 0; + vm_map_entry_t entry; - vm_map_lock(map); + if (not_in_kdp) { + vm_map_lock(map); + } entry = vm_map_first_entry(map); - while(entry != vm_map_to_entry(map)) { - if(entry->is_sub_map) { - total_entries += - get_vmsubmap_entries(entry->object.sub_map, - entry->offset, - entry->offset + - (entry->vme_end - entry->vme_start)); + while (entry != vm_map_to_entry(map)) { + if (entry->is_sub_map) { + total_entries += + get_vmsubmap_entries(VME_SUBMAP(entry), + VME_OFFSET(entry), + (VME_OFFSET(entry) + + entry->vme_end - + entry->vme_start)); } else { total_entries += 1; } entry = entry->vme_next; } - vm_map_unlock(map); - return(total_entries); + if (not_in_kdp) { + vm_map_unlock(map); + } + return total_entries; } +#endif /* CONFIG_COREDUMP */ /* * @@ -431,7 +855,7 @@ int get_task_userstop( task_t task) { - return(task->user_stop_count); + return task->user_stop_count; } /* @@ -439,47 +863,70 @@ get_task_userstop( */ int get_thread_userstop( - thread_act_t th) + thread_t th) { - return(th->user_stop_count); + return th->user_stop_count; } /* * */ -int -inc_task_userstop( - task_t task) +boolean_t +get_task_pidsuspended( + task_t task) { - int i=0; - i = task->user_stop_count; - task->user_stop_count++; - return(i); + return task->pidsuspended; } +/* + * + */ +boolean_t +get_task_frozen( + task_t task) +{ + return task->frozen; +} /* * */ boolean_t thread_should_abort( - thread_shuttle_t th) + thread_t th) { - return( (!th->top_act || !th->top_act->active || - th->state & TH_ABORT)); + return (th->sched_flags & TH_SFLAG_ABORTED_MASK) == TH_SFLAG_ABORT; } /* - * + * This routine is like thread_should_abort() above. It checks to + * see if the current thread is aborted. But unlike above, it also + * checks to see if thread is safely aborted. If so, it returns + * that fact, and clears the condition (safe aborts only should + * have a single effect, and a poll of the abort status + * qualifies. */ boolean_t -current_thread_aborted ( - void) +current_thread_aborted( + void) { thread_t th = current_thread(); + spl_t s; - return(!th->top_act || - ((th->state & TH_ABORT) && (th->interruptible))); + if ((th->sched_flags & TH_SFLAG_ABORTED_MASK) == TH_SFLAG_ABORT && + (th->options & TH_OPT_INTMASK) != THREAD_UNINT) { + return TRUE; + } + if (th->sched_flags & TH_SFLAG_ABORTSAFELY) { + s = splsched(); + thread_lock(th); + if (th->sched_flags & TH_SFLAG_ABORTSAFELY) { + th->sched_flags &= ~TH_SFLAG_ABORTED_MASK; + } + thread_unlock(th); + splx(s); + } + return FALSE; } /* @@ -487,63 +934,400 @@ current_thread_aborted ( */ void task_act_iterate_wth_args( - task_t task, - void (*func_callback)(thread_act_t, void *), - void *func_arg) + task_t task, + void (*func_callback)(thread_t, void *), + void *func_arg) { - thread_act_t inc, ninc; + thread_t inc; task_lock(task); - for (inc = (thread_act_t)queue_first(&task->thr_acts); - inc != (thread_act_t)&task->thr_acts; - inc = ninc) { - ninc = (thread_act_t)queue_next(&inc->thr_acts); - (void) (*func_callback)(inc, func_arg); - } + + for (inc = (thread_t)(void *)queue_first(&task->threads); + !queue_end(&task->threads, (queue_entry_t)inc);) { + (void) (*func_callback)(inc, func_arg); + inc = (thread_t)(void *)queue_next(&inc->task_threads); + } + task_unlock(task); } + +#include + void -ipc_port_release( - ipc_port_t port) +fill_taskprocinfo(task_t task, struct proc_taskinfo_internal * ptinfo) +{ + vm_map_t map; + task_absolutetime_info_data_t tinfo; + thread_t thread; + uint32_t cswitch = 0, numrunning = 0; + uint32_t syscalls_unix = 0; + uint32_t syscalls_mach = 0; + + task_lock(task); + + map = (task == kernel_task)? kernel_map: task->map; + + ptinfo->pti_virtual_size = vm_map_adjusted_size(map); + ptinfo->pti_resident_size = + (mach_vm_size_t)(pmap_resident_count(map->pmap)) + * PAGE_SIZE_64; + + ptinfo->pti_policy = ((task != kernel_task)? + POLICY_TIMESHARE: POLICY_RR); + + tinfo.threads_user = tinfo.threads_system = 0; + tinfo.total_user = task->total_user_time; + tinfo.total_system = task->total_system_time; + + queue_iterate(&task->threads, thread, thread_t, task_threads) { + uint64_t tval; + spl_t x; + + if (thread->options & TH_OPT_IDLE_THREAD) { + continue; + } + + x = splsched(); + thread_lock(thread); + + if ((thread->state & TH_RUN) == TH_RUN) { + numrunning++; + } + cswitch += thread->c_switch; + tval = timer_grab(&thread->user_timer); + tinfo.threads_user += tval; + tinfo.total_user += tval; + + tval = timer_grab(&thread->system_timer); + + if (thread->precise_user_kernel_time) { + tinfo.threads_system += tval; + tinfo.total_system += tval; + } else { + /* system_timer may represent either sys or user */ + tinfo.threads_user += tval; + tinfo.total_user += tval; + } + + syscalls_unix += thread->syscalls_unix; + syscalls_mach += thread->syscalls_mach; + + thread_unlock(thread); + splx(x); + } + + ptinfo->pti_total_system = tinfo.total_system; + ptinfo->pti_total_user = tinfo.total_user; + ptinfo->pti_threads_system = tinfo.threads_system; + ptinfo->pti_threads_user = tinfo.threads_user; + + ptinfo->pti_faults = (int32_t) MIN(counter_load(&task->faults), INT32_MAX); + ptinfo->pti_pageins = task->pageins; + ptinfo->pti_cow_faults = task->cow_faults; + ptinfo->pti_messages_sent = task->messages_sent; + ptinfo->pti_messages_received = task->messages_received; + ptinfo->pti_syscalls_mach = task->syscalls_mach + syscalls_mach; + ptinfo->pti_syscalls_unix = task->syscalls_unix + syscalls_unix; + ptinfo->pti_csw = task->c_switch + cswitch; + ptinfo->pti_threadnum = task->thread_count; + ptinfo->pti_numrunning = numrunning; + ptinfo->pti_priority = task->priority; + + task_unlock(task); +} + +int +fill_taskthreadinfo(task_t task, uint64_t thaddr, bool thuniqueid, struct proc_threadinfo_internal * ptinfo, void * vpp, int *vidp) +{ + thread_t thact; + int err = 0; + mach_msg_type_number_t count; + thread_basic_info_data_t basic_info; + kern_return_t kret; + uint64_t addr = 0; + + task_lock(task); + + for (thact = (thread_t)(void *)queue_first(&task->threads); + !queue_end(&task->threads, (queue_entry_t)thact);) { + addr = (thuniqueid) ? thact->thread_id : thact->machine.cthread_self; + if (addr == thaddr) { + count = THREAD_BASIC_INFO_COUNT; + if ((kret = thread_info_internal(thact, THREAD_BASIC_INFO, (thread_info_t)&basic_info, &count)) != KERN_SUCCESS) { + err = 1; + goto out; + } + ptinfo->pth_user_time = (((uint64_t)basic_info.user_time.seconds * NSEC_PER_SEC) + ((uint64_t)basic_info.user_time.microseconds * NSEC_PER_USEC)); + ptinfo->pth_system_time = (((uint64_t)basic_info.system_time.seconds * NSEC_PER_SEC) + ((uint64_t)basic_info.system_time.microseconds * NSEC_PER_USEC)); + + ptinfo->pth_cpu_usage = basic_info.cpu_usage; + ptinfo->pth_policy = basic_info.policy; + ptinfo->pth_run_state = basic_info.run_state; + ptinfo->pth_flags = basic_info.flags; + ptinfo->pth_sleep_time = basic_info.sleep_time; + ptinfo->pth_curpri = thact->sched_pri; + ptinfo->pth_priority = thact->base_pri; + ptinfo->pth_maxpriority = thact->max_priority; + + if ((vpp != NULL) && (thact->uthread != NULL)) { + bsd_threadcdir(thact->uthread, vpp, vidp); + } + bsd_getthreadname(thact->uthread, ptinfo->pth_name); + err = 0; + goto out; + } + thact = (thread_t)(void *)queue_next(&thact->task_threads); + } + err = 1; + +out: + task_unlock(task); + return err; +} + +int +fill_taskthreadlist(task_t task, void * buffer, int thcount, bool thuniqueid) +{ + int numthr = 0; + thread_t thact; + uint64_t * uptr; + uint64_t thaddr; + + uptr = (uint64_t *)buffer; + + task_lock(task); + + for (thact = (thread_t)(void *)queue_first(&task->threads); + !queue_end(&task->threads, (queue_entry_t)thact);) { + thaddr = (thuniqueid) ? thact->thread_id : thact->machine.cthread_self; + *uptr++ = thaddr; + numthr++; + if (numthr >= thcount) { + goto out; + } + thact = (thread_t)(void *)queue_next(&thact->task_threads); + } + +out: + task_unlock(task); + return (int)(numthr * sizeof(uint64_t)); +} + +int +get_numthreads(task_t task) +{ + return task->thread_count; +} + +/* + * Gather the various pieces of info about the designated task, + * and collect it all into a single rusage_info. + */ +int +fill_task_rusage(task_t task, rusage_info_current *ri) { - ipc_object_release(&(port)->ip_object); + struct task_power_info powerinfo; + + uint64_t runnable_time = 0; + + assert(task != TASK_NULL); + task_lock(task); + + task_power_info_locked(task, &powerinfo, NULL, NULL, &runnable_time); + ri->ri_pkg_idle_wkups = powerinfo.task_platform_idle_wakeups; + ri->ri_interrupt_wkups = powerinfo.task_interrupt_wakeups; + ri->ri_user_time = powerinfo.total_user; + ri->ri_system_time = powerinfo.total_system; + ri->ri_runnable_time = runnable_time; + + ri->ri_phys_footprint = get_task_phys_footprint(task); + ledger_get_balance(task->ledger, task_ledgers.phys_mem, + (ledger_amount_t *)&ri->ri_resident_size); + ri->ri_wired_size = get_task_wired_mem(task); + + ri->ri_pageins = task->pageins; + + task_unlock(task); + return 0; } void -thread_ast_set( - thread_act_t act, - ast_t reason) +fill_task_billed_usage(task_t task __unused, rusage_info_current *ri) +{ + bank_billed_balance_safe(task, &ri->ri_billed_system_time, &ri->ri_billed_energy); + bank_serviced_balance_safe(task, &ri->ri_serviced_system_time, &ri->ri_serviced_energy); +} + +int +fill_task_io_rusage(task_t task, rusage_info_current *ri) { - act->ast |= reason; + assert(task != TASK_NULL); + task_lock(task); + + if (task->task_io_stats) { + ri->ri_diskio_bytesread = task->task_io_stats->disk_reads.size; + ri->ri_diskio_byteswritten = (task->task_io_stats->total_io.size - task->task_io_stats->disk_reads.size); + } else { + /* I/O Stats unavailable */ + ri->ri_diskio_bytesread = 0; + ri->ri_diskio_byteswritten = 0; + } + task_unlock(task); + return 0; +} + +int +fill_task_qos_rusage(task_t task, rusage_info_current *ri) +{ + thread_t thread; + + assert(task != TASK_NULL); + task_lock(task); + + /* Rollup QoS time of all the threads to task */ + queue_iterate(&task->threads, thread, thread_t, task_threads) { + if (thread->options & TH_OPT_IDLE_THREAD) { + continue; + } + + thread_update_qos_cpu_time(thread); + } + ri->ri_cpu_time_qos_default = task->cpu_time_eqos_stats.cpu_time_qos_default; + ri->ri_cpu_time_qos_maintenance = task->cpu_time_eqos_stats.cpu_time_qos_maintenance; + ri->ri_cpu_time_qos_background = task->cpu_time_eqos_stats.cpu_time_qos_background; + ri->ri_cpu_time_qos_utility = task->cpu_time_eqos_stats.cpu_time_qos_utility; + ri->ri_cpu_time_qos_legacy = task->cpu_time_eqos_stats.cpu_time_qos_legacy; + ri->ri_cpu_time_qos_user_initiated = task->cpu_time_eqos_stats.cpu_time_qos_user_initiated; + ri->ri_cpu_time_qos_user_interactive = task->cpu_time_eqos_stats.cpu_time_qos_user_interactive; + + task_unlock(task); + return 0; } + void -thread_ast_clear( - thread_act_t act, - ast_t reason) +fill_task_monotonic_rusage(task_t task, rusage_info_current *ri) { - act->ast &= ~(reason); +#if MONOTONIC + if (!mt_core_supported) { + return; + } + + assert(task != TASK_NULL); + + uint64_t counts[MT_CORE_NFIXED] = { 0 }; + mt_fixed_task_counts(task, counts); +#ifdef MT_CORE_INSTRS + ri->ri_instructions = counts[MT_CORE_INSTRS]; +#endif /* defined(MT_CORE_INSTRS) */ + ri->ri_cycles = counts[MT_CORE_CYCLES]; +#else /* MONOTONIC */ +#pragma unused(task, ri) +#endif /* !MONOTONIC */ } -boolean_t -is_thread_active( - thread_shuttle_t th) +uint64_t +get_task_logical_writes(task_t task, boolean_t external) +{ + assert(task != TASK_NULL); + struct ledger_entry_info lei; + + task_lock(task); + + if (external == FALSE) { + ledger_get_entry_info(task->ledger, task_ledgers.logical_writes, &lei); + } else { + ledger_get_entry_info(task->ledger, task_ledgers.logical_writes_to_external, &lei); + } + + ledger_get_entry_info(task->ledger, task_ledgers.logical_writes, &lei); + + task_unlock(task); + return lei.lei_balance; +} + +uint64_t +get_task_dispatchqueue_serialno_offset(task_t task) { - return(th->active); + uint64_t dq_serialno_offset = 0; + + if (task->bsd_info) { + dq_serialno_offset = get_dispatchqueue_serialno_offset_from_proc(task->bsd_info); + } + + return dq_serialno_offset; } -event_t -get_thread_waitevent( - thread_shuttle_t th) +uint64_t +get_task_dispatchqueue_label_offset(task_t task) { - return(th->wait_event); + uint64_t dq_label_offset = 0; + + if (task->bsd_info) { + dq_label_offset = get_dispatchqueue_label_offset_from_proc(task->bsd_info); + } + + return dq_label_offset; } -kern_return_t -get_thread_waitresult( - thread_shuttle_t th) +uint64_t +get_task_uniqueid(task_t task) { - return(th->wait_result); + if (task->bsd_info) { + return proc_uniqueid(task->bsd_info); + } else { + return UINT64_MAX; + } +} + +int +get_task_version(task_t task) +{ + if (task->bsd_info) { + return proc_pidversion(task->bsd_info); + } else { + return INT_MAX; + } +} + +#if CONFIG_MACF +struct label * +get_task_crash_label(task_t task) +{ + return task->crash_label; +} +#endif + +int +fill_taskipctableinfo(task_t task, uint32_t *table_size, uint32_t *table_free) +{ + ipc_space_t space = task->itk_space; + if (space == NULL) { + return -1; + } + + is_read_lock(space); + if (!is_active(space)) { + is_read_unlock(space); + return -1; + } + + *table_size = space->is_table_size; + *table_free = space->is_table_free; + + is_read_unlock(space); + + return 0; } +int +get_task_cdhash(task_t task, char cdhash[static CS_CDHASH_LEN]) +{ + int result = 0; + + task_lock(task); + result = task->bsd_info ? proc_getcdhash(task->bsd_info, cdhash) : ESRCH; + task_unlock(task); + return result; +}