X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/316670eb35587141e969394ae8537d66b9211e80..d190cdc3f5544636abb56dc1874be391d3e1b148:/osfmk/kern/bsd_kern.c diff --git a/osfmk/kern/bsd_kern.c b/osfmk/kern/bsd_kern.c index ea5f9e139..ac79a2345 100644 --- a/osfmk/kern/bsd_kern.c +++ b/osfmk/kern/bsd_kern.c @@ -27,13 +27,14 @@ */ #include #include +#include #include +#include #include #include #include #include -#include #include #include #include @@ -41,13 +42,14 @@ #include #include #include /* last */ +#include +#include #undef thread_should_halt /* BSD KERN COMPONENT INTERFACE */ task_t bsd_init_task = TASK_NULL; -char init_task_failure_data[1024]; extern unsigned int not_in_kdp; /* Skip acquiring locks if we're in kdp */ thread_t get_firstthread(task_t); @@ -56,9 +58,18 @@ int get_thread_userstop(thread_t); boolean_t current_thread_aborted(void); void task_act_iterate_wth_args(task_t, void(*)(thread_t, void *), void *); kern_return_t get_signalact(task_t , thread_t *, int); -int get_vmsubmap_entries(vm_map_t, vm_object_offset_t, vm_object_offset_t); -void syscall_exit_funnelcheck(void); +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_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 proc_uniqueid(void *p); + +#if MACH_BSD +extern void psignal(void *, int); +#endif /* * @@ -68,6 +79,13 @@ void *get_bsdtask_info(task_t t) 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); + } +} /* * */ @@ -109,7 +127,7 @@ int get_thread_lock_count(thread_t th) */ thread_t get_firstthread(task_t task) { - thread_t thread = (thread_t)queue_first(&task->threads); + thread_t thread = (thread_t)(void *)queue_first(&task->threads); if (queue_end(&task->threads, (queue_entry_t)thread)) thread = THREAD_NULL; @@ -137,7 +155,7 @@ get_signalact( return (KERN_FAILURE); } - for (inc = (thread_t)queue_first(&task->threads); + for (inc = (thread_t)(void *)queue_first(&task->threads); !queue_end(&task->threads, (queue_entry_t)inc); ) { thread_mtx_lock(inc); if (inc->active && @@ -147,7 +165,7 @@ get_signalact( } thread_mtx_unlock(inc); - inc = (thread_t)queue_next(&inc->task_threads); + inc = (thread_t)(void *)queue_next(&inc->task_threads); } if (result_out) @@ -185,7 +203,7 @@ check_actforsig( return (KERN_FAILURE); } - for (inc = (thread_t)queue_first(&task->threads); + for (inc = (thread_t)(void *)queue_first(&task->threads); !queue_end(&task->threads, (queue_entry_t)inc); ) { if (inc == thread) { thread_mtx_lock(inc); @@ -200,7 +218,7 @@ check_actforsig( break; } - inc = (thread_t)queue_next(&inc->task_threads); + inc = (thread_t)(void *)queue_next(&inc->task_threads); } if (result == KERN_SUCCESS) { @@ -222,9 +240,9 @@ ledger_t get_task_ledger(task_t t) /* * This is only safe to call from a thread executing in - * in the task's context or if the task is locked Otherwise, + * in the task's context or if the task is locked. Otherwise, * the map could be switched for the task (and freed) before - * we to return it here. + * we go to return it here. */ vm_map_t get_task_map(task_t t) { @@ -263,8 +281,8 @@ int get_task_numactivethreads(task_t task) int num_active_thr=0; task_lock(task); - for (inc = (thread_t)queue_first(&task->threads); - !queue_end(&task->threads, (queue_entry_t)inc); inc = (thread_t)queue_next(&inc->task_threads)) + for (inc = (thread_t)(void *)queue_first(&task->threads); + !queue_end(&task->threads, (queue_entry_t)inc); inc = (thread_t)(void *)queue_next(&inc->task_threads)) { if(inc->active) num_active_thr++; @@ -281,29 +299,33 @@ int get_task_numacts(task_t t) /* does this machine need 64bit register set for signal handler */ int is_64signalregset(void) { - task_t t = current_task(); - if(t->taskFeatures[0] & tf64BitData) + if (task_has_64BitData(current_task())) { return(1); - else - return(0); + } + + return(0); } /* * Swap in a new map for the task/thread pair; the old map reference is - * returned. + * returned. Also does a pmap switch if thread provided is current thread. */ vm_map_t -swap_task_map(task_t task, thread_t thread, vm_map_t map, boolean_t doswitch) +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"); task_lock(task); mp_disable_preemption(); + old_map = task->map; thread->map = task->map = map; + vm_commit_pagezero_status(map); + if (doswitch) { pmap_switch(map->pmap); } @@ -319,6 +341,10 @@ swap_task_map(task_t task, thread_t thread, vm_map_t map, boolean_t doswitch) /* * + * 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. */ pmap_t get_task_pmap(task_t t) { @@ -336,13 +362,210 @@ uint64_t get_task_resident_size(task_t task) 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); +} + +uint64_t get_task_purgeable_size(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + uint64_t volatile_size = 0; + + ret = ledger_get_entries(task->ledger, task_ledgers.purgeable_volatile, &credit, &debit); + if (ret != KERN_SUCCESS) { + return 0; + } + + volatile_size += (credit - debit); + + ret = ledger_get_entries(task->ledger, task_ledgers.purgeable_volatile_compressed, &credit, &debit); + if (ret != KERN_SUCCESS) { + return 0; + } + + volatile_size += (credit - debit); + + return volatile_size; +} + +/* + * + */ +uint64_t get_task_phys_footprint(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.phys_footprint, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +/* + * + */ +uint64_t get_task_phys_footprint_max(task_t task) +{ + kern_return_t ret; + ledger_amount_t max; + + ret = ledger_get_maximum(task->ledger, task_ledgers.phys_footprint, &max); + if (KERN_SUCCESS == ret) { + return max; + } + + return 0; +} + /* * */ -pmap_t get_map_pmap(vm_map_t map) +uint64_t get_task_phys_footprint_limit(task_t task) +{ + 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) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.internal, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +uint64_t get_task_internal_compressed(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.internal_compressed, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +uint64_t get_task_purgeable_nonvolatile(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.purgeable_nonvolatile, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +uint64_t get_task_purgeable_nonvolatile_compressed(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.purgeable_nonvolatile_compressed, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +uint64_t get_task_alternate_accounting(task_t task) { - return(map->pmap); + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.alternate_accounting, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; } + +uint64_t get_task_alternate_accounting_compressed(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.alternate_accounting_compressed, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +uint64_t get_task_page_table(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.page_table, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +uint64_t get_task_iokit_mapped(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.iokit_mapped, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + +uint64_t get_task_cpu_time(task_t task) +{ + kern_return_t ret; + ledger_amount_t credit, debit; + + ret = ledger_get_entries(task->ledger, task_ledgers.cpu_time, &credit, &debit); + if (KERN_SUCCESS == ret) { + return (credit - debit); + } + + return 0; +} + /* * */ @@ -377,7 +600,9 @@ get_vmmap_size( return(map->size); } -int +#if CONFIG_COREDUMP + +static int get_vmsubmap_entries( vm_map_t map, vm_object_offset_t start, @@ -396,10 +621,11 @@ get_vmsubmap_entries( 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)); + get_vmsubmap_entries(VME_SUBMAP(entry), + VME_OFFSET(entry), + (VME_OFFSET(entry) + + entry->vme_end - + entry->vme_start)); } else { total_entries += 1; } @@ -424,10 +650,11 @@ get_vmmap_entries( 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)); + get_vmsubmap_entries(VME_SUBMAP(entry), + VME_OFFSET(entry), + (VME_OFFSET(entry) + + entry->vme_end - + entry->vme_start)); } else { total_entries += 1; } @@ -437,6 +664,7 @@ get_vmmap_entries( vm_map_unlock(map); return(total_entries); } +#endif /* CONFIG_COREDUMP */ /* * @@ -533,27 +761,16 @@ task_act_iterate_wth_args( task_lock(task); - for (inc = (thread_t)queue_first(&task->threads); + 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)queue_next(&inc->task_threads); + inc = (thread_t)(void *)queue_next(&inc->task_threads); } task_unlock(task); } -void -astbsd_on(void) -{ - boolean_t reenable; - - reenable = ml_set_interrupts_enabled(FALSE); - ast_on_fast(AST_BSD); - (void)ml_set_interrupts_enabled(reenable); -} - - #include void @@ -565,7 +782,9 @@ fill_taskprocinfo(task_t task, struct proc_taskinfo_internal * ptinfo) 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 = map->size; @@ -573,8 +792,6 @@ fill_taskprocinfo(task_t task, struct proc_taskinfo_internal * ptinfo) (mach_vm_size_t)(pmap_resident_count(map->pmap)) * PAGE_SIZE_64; - task_lock(task); - ptinfo->pti_policy = ((task != kernel_task)? POLICY_TIMESHARE: POLICY_RR); @@ -586,6 +803,9 @@ fill_taskprocinfo(task_t task, struct proc_taskinfo_internal * ptinfo) uint64_t tval; spl_t x; + if (thread->options & TH_OPT_IDLE_THREAD) + continue; + x = splsched(); thread_lock(thread); @@ -646,7 +866,7 @@ fill_taskthreadinfo(task_t task, uint64_t thaddr, int thuniqueid, struct proc_th task_lock(task); - for (thact = (thread_t)queue_first(&task->threads); + for (thact = (thread_t)(void *)queue_first(&task->threads); !queue_end(&task->threads, (queue_entry_t)thact); ) { addr = (thuniqueid==0)?thact->machine.cthread_self: thact->thread_id; if (addr == thaddr) @@ -657,8 +877,8 @@ fill_taskthreadinfo(task_t task, uint64_t thaddr, int thuniqueid, struct proc_th err = 1; goto out; } - ptinfo->pth_user_time = ((basic_info.user_time.seconds * NSEC_PER_SEC) + (basic_info.user_time.microseconds * NSEC_PER_USEC)); - ptinfo->pth_system_time = ((basic_info.system_time.seconds * NSEC_PER_SEC) + (basic_info.system_time.microseconds * NSEC_PER_USEC)); + ptinfo->pth_user_time = ((basic_info.user_time.seconds * (integer_t)NSEC_PER_SEC) + (basic_info.user_time.microseconds * (integer_t)NSEC_PER_USEC)); + ptinfo->pth_system_time = ((basic_info.system_time.seconds * (integer_t)NSEC_PER_SEC) + (basic_info.system_time.microseconds * (integer_t)NSEC_PER_USEC)); ptinfo->pth_cpu_usage = basic_info.cpu_usage; ptinfo->pth_policy = basic_info.policy; @@ -666,7 +886,7 @@ fill_taskthreadinfo(task_t task, uint64_t thaddr, int thuniqueid, struct proc_th ptinfo->pth_flags = basic_info.flags; ptinfo->pth_sleep_time = basic_info.sleep_time; ptinfo->pth_curpri = thact->sched_pri; - ptinfo->pth_priority = thact->priority; + ptinfo->pth_priority = thact->base_pri; ptinfo->pth_maxpriority = thact->max_priority; if ((vpp != NULL) && (thact->uthread != NULL)) @@ -675,7 +895,7 @@ fill_taskthreadinfo(task_t task, uint64_t thaddr, int thuniqueid, struct proc_th err = 0; goto out; } - thact = (thread_t)queue_next(&thact->task_threads); + thact = (thread_t)(void *)queue_next(&thact->task_threads); } err = 1; @@ -696,14 +916,14 @@ fill_taskthreadlist(task_t task, void * buffer, int thcount) task_lock(task); - for (thact = (thread_t)queue_first(&task->threads); + for (thact = (thread_t)(void *)queue_first(&task->threads); !queue_end(&task->threads, (queue_entry_t)thact); ) { thaddr = thact->machine.cthread_self; *uptr++ = thaddr; numthr++; if (numthr >= thcount) goto out; - thact = (thread_t)queue_next(&thact->task_threads); + thact = (thread_t)(void *)queue_next(&thact->task_threads); } out: @@ -718,13 +938,126 @@ get_numthreads(task_t task) return(task->thread_count); } -void -syscall_exit_funnelcheck(void) +/* + * 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) { - thread_t thread; + struct task_power_info powerinfo; - thread = current_thread(); + assert(task != TASK_NULL); + task_lock(task); - if (thread->funnel_lock) - panic("syscall exit with funnel held\n"); + task_power_info_locked(task, &powerinfo, NULL, NULL); + 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; + + ledger_get_balance(task->ledger, task_ledgers.phys_footprint, + (ledger_amount_t *)&ri->ri_phys_footprint); + ledger_get_balance(task->ledger, task_ledgers.phys_mem, + (ledger_amount_t *)&ri->ri_resident_size); + ledger_get_balance(task->ledger, task_ledgers.wired_mem, + (ledger_amount_t *)&ri->ri_wired_size); + + ri->ri_pageins = task->pageins; + + task_unlock(task); + return (0); } + +void +fill_task_billed_usage(task_t task __unused, rusage_info_current *ri) +{ +#if CONFIG_BANK + ri->ri_billed_system_time = bank_billed_time_safe(task); + ri->ri_serviced_system_time = bank_serviced_time_safe(task); +#else + ri->ri_billed_system_time = 0; + ri->ri_serviced_system_time = 0; +#endif +} + +int +fill_task_io_rusage(task_t task, rusage_info_current *ri) +{ + 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_qos_stats.cpu_time_qos_default; + ri->ri_cpu_time_qos_maintenance = task->cpu_time_qos_stats.cpu_time_qos_maintenance; + ri->ri_cpu_time_qos_background = task->cpu_time_qos_stats.cpu_time_qos_background; + ri->ri_cpu_time_qos_utility = task->cpu_time_qos_stats.cpu_time_qos_utility; + ri->ri_cpu_time_qos_legacy = task->cpu_time_qos_stats.cpu_time_qos_legacy; + ri->ri_cpu_time_qos_user_initiated = task->cpu_time_qos_stats.cpu_time_qos_user_initiated; + ri->ri_cpu_time_qos_user_interactive = task->cpu_time_qos_stats.cpu_time_qos_user_interactive; + + task_unlock(task); + return (0); +} + +uint64_t +get_task_dispatchqueue_serialno_offset(task_t task) +{ + 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; +} + +uint64_t +get_task_uniqueid(task_t task) +{ + if (task->bsd_info) { + return proc_uniqueid(task->bsd_info); + } else { + return UINT64_MAX; + } +} + +#if CONFIG_MACF +struct label * +get_task_crash_label(task_t task) +{ + return task->crash_label; +} + +void +set_task_crash_label(task_t task, struct label *label) +{ + task->crash_label = label; +} +#endif