#include <libkern/OSDebug.h>
#include <libkern/OSAtomic.h>
+#include <libkern/section_keywords.h>
#if CONFIG_ATM
#include <atm/atm_internal.h>
extern int exc_via_corpse_forking;
extern int corpse_for_fatal_memkill;
+extern boolean_t proc_send_synchronous_EXC_RESOURCE(void *p);
/* Flag set by core audio when audio is playing. Used to stifle EXC_RESOURCE generation when active. */
int audio_active = 0;
ledger_template_t task_ledger_template = NULL;
-struct _task_ledger_indices task_ledgers __attribute__((used)) =
- {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+SECURITY_READ_ONLY_LATE(struct _task_ledger_indices) task_ledgers __attribute__((used)) =
+{.cpu_time = -1,
+ .tkm_private = -1,
+ .tkm_shared = -1,
+ .phys_mem = -1,
+ .wired_mem = -1,
+ .internal = -1,
+ .iokit_mapped = -1,
+ .alternate_accounting = -1,
+ .alternate_accounting_compressed = -1,
+ .page_table = -1,
+ .phys_footprint = -1,
+ .internal_compressed = -1,
+ .purgeable_volatile = -1,
+ .purgeable_nonvolatile = -1,
+ .purgeable_volatile_compressed = -1,
+ .purgeable_nonvolatile_compressed = -1,
+ .network_volatile = -1,
+ .network_nonvolatile = -1,
+ .network_volatile_compressed = -1,
+ .network_nonvolatile_compressed = -1,
+ .platform_idle_wakeups = -1,
+ .interrupt_wakeups = -1,
#if !CONFIG_EMBEDDED
- { 0 /* initialized at runtime */},
+ .sfi_wait_times = { 0 /* initialized at runtime */},
#endif /* !CONFIG_EMBEDDED */
- -1, -1,
- -1, -1,
- -1, -1,
- };
+ .cpu_time_billed_to_me = -1,
+ .cpu_time_billed_to_others = -1,
+ .physical_writes = -1,
+ .logical_writes = -1,
+ .energy_billed_to_me = -1,
+ .energy_billed_to_others = -1
+};
/* System sleep state */
boolean_t tasks_suspend_state;
int64_t global_logical_writes_count = 0; /* Global count for logical writes */
static boolean_t global_update_logical_writes(int64_t);
+#define TASK_MAX_THREAD_LIMIT 256
+
#if MACH_ASSERT
int pmap_ledgers_panic = 1;
+int pmap_ledgers_panic_leeway = 3;
#endif /* MACH_ASSERT */
int task_max = CONFIG_TASK_MAX; /* Max number of tasks */
extern void proc_getexecutableuuid(void *, unsigned char *, unsigned long);
extern int proc_pid(struct proc *p);
extern int proc_selfpid(void);
+extern struct proc *current_proc(void);
extern char *proc_name_address(struct proc *p);
extern uint64_t get_dispatchqueue_offset_from_proc(void *);
extern int kevent_proc_copy_uptrs(void *proc, uint64_t *buf, int bufsize);
+extern void workq_proc_suspended(struct proc *p);
+extern void workq_proc_resumed(struct proc *p);
#if CONFIG_MEMORYSTATUS
extern void proc_memstat_terminated(struct proc* p, boolean_t set);
extern void memorystatus_on_ledger_footprint_exceeded(int warning, boolean_t memlimit_is_active, boolean_t memlimit_is_fatal);
extern void memorystatus_log_exception(const int max_footprint_mb, boolean_t memlimit_is_active, boolean_t memlimit_is_fatal);
-extern boolean_t memorystatus_allowed_vm_map_fork(__unused task_t task);
+extern boolean_t memorystatus_allowed_vm_map_fork(task_t task);
+
+#if DEVELOPMENT || DEBUG
+extern void memorystatus_abort_vm_map_fork(task_t);
+#endif
+
#endif /* CONFIG_MEMORYSTATUS */
#endif /* MACH_BSD */
+#if DEVELOPMENT || DEBUG
+int exc_resource_threads_enabled;
+#endif /* DEVELOPMENT || DEBUG */
+
+#if (DEVELOPMENT || DEBUG) && TASK_EXC_GUARD_DELIVER_CORPSE
+uint32_t task_exc_guard_default = TASK_EXC_GUARD_MP_DELIVER | TASK_EXC_GUARD_MP_CORPSE |
+ TASK_EXC_GUARD_VM_DELIVER | TASK_EXC_GUARD_VM_CORPSE;
+#else
+uint32_t task_exc_guard_default = 0;
+#endif
+
/* Forwards */
static void task_hold_locked(task_t task);
static void task_synchronizer_destroy_all(task_t task);
-void
-task_backing_store_privileged(
- task_t task)
-{
- task_lock(task);
- task->priv_flags |= VM_BACKING_STORE_PRIV;
- task_unlock(task);
- return;
-}
-
void
task_set_64bit(
task_t task,
- boolean_t is64bit)
+ boolean_t is_64bit,
+ boolean_t is_64bit_data)
{
#if defined(__i386__) || defined(__x86_64__) || defined(__arm64__)
thread_t thread;
task_lock(task);
- if (is64bit) {
- if (task_has_64BitAddr(task))
+ /*
+ * Switching to/from 64-bit address spaces
+ */
+ if (is_64bit) {
+ if (!task_has_64Bit_addr(task)) {
+ task_set_64Bit_addr(task);
+ }
+ } else {
+ if (task_has_64Bit_addr(task)) {
+ task_clear_64Bit_addr(task);
+ }
+ }
+
+ /*
+ * Switching to/from 64-bit register state.
+ */
+ if (is_64bit_data) {
+ if (task_has_64Bit_data(task))
goto out;
- task_set_64BitAddr(task);
+
+ task_set_64Bit_data(task);
} else {
- if ( !task_has_64BitAddr(task))
+ if ( !task_has_64Bit_data(task))
goto out;
- task_clear_64BitAddr(task);
+
+ task_clear_64Bit_data(task);
}
+
/* FIXME: On x86, the thread save state flavor can diverge from the
* task's 64-bit feature flag due to the 32-bit/64-bit register save
* state dichotomy. Since we can be pre-empted in this interval,
task_unlock(task);
}
+boolean_t
+task_get_64bit_data(task_t task)
+{
+ return task_has_64Bit_data(task);
+}
+
void
task_set_platform_binary(
task_t task,
task_unlock(task);
}
+/*
+ * Set or clear per-task TF_CA_CLIENT_WI flag according to specified argument.
+ * Returns "false" if flag is already set, and "true" in other cases.
+ */
+bool
+task_set_ca_client_wi(
+ task_t task,
+ boolean_t set_or_clear)
+{
+ bool ret = true;
+ task_lock(task);
+ if (set_or_clear) {
+ /* Tasks can have only one CA_CLIENT work interval */
+ if (task->t_flags & TF_CA_CLIENT_WI)
+ ret = false;
+ else
+ task->t_flags |= TF_CA_CLIENT_WI;
+ } else {
+ task->t_flags &= ~TF_CA_CLIENT_WI;
+ }
+ task_unlock(task);
+ return ret;
+}
+
void
task_set_dyld_info(
task_t task,
task_unlock(task);
}
-void
+void __attribute__((noreturn))
task_wait_to_return(void)
{
task_t task;
task_unlock(task);
+#if CONFIG_MACF
+ /*
+ * Before jumping to userspace and allowing this process to execute any code,
+ * notify any interested parties.
+ */
+ mac_proc_notify_exec_complete(current_proc());
+#endif
+
thread_bootstrap_return();
}
+#ifdef CONFIG_32BIT_TELEMETRY
+boolean_t
+task_consume_32bit_log_flag(task_t task)
+{
+ if ((task->t_procflags & TPF_LOG_32BIT_TELEMETRY) != 0) {
+ task->t_procflags &= ~TPF_LOG_32BIT_TELEMETRY;
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+void
+task_set_32bit_log_flag(task_t task)
+{
+ task->t_procflags |= TPF_LOG_32BIT_TELEMETRY;
+}
+#endif /* CONFIG_32BIT_TELEMETRY */
+
boolean_t
task_is_exec_copy(task_t task)
{
void * bt[TASK_REF_BTDEPTH];
int numsaved = 0;
+ os_ref_retain(&task->ref_count);
+
numsaved = OSBacktrace(bt, TASK_REF_BTDEPTH);
-
- (void)hw_atomic_add(&(task)->ref_count, 1);
btlog_add_entry(task_ref_btlog, task, TASK_REF_OP_INCR,
bt, numsaved);
}
-uint32_t
+os_ref_count_t
task_deallocate_internal(task_t task)
{
void * bt[TASK_REF_BTDEPTH];
int numsaved = 0;
numsaved = OSBacktrace(bt, TASK_REF_BTDEPTH);
-
btlog_add_entry(task_ref_btlog, task, TASK_REF_OP_DECR,
bt, numsaved);
- return hw_atomic_sub(&(task)->ref_count, 1);
+
+ return os_ref_release(&task->ref_count);
}
#endif /* TASK_REFERENCE_LEAK_DEBUG */
#endif /* CONFIG_MEMORYSTATUS */
}
-#if MACH_ASSERT
- PE_parse_boot_argn("pmap_ledgers_panic", &pmap_ledgers_panic,
- sizeof (pmap_ledgers_panic));
-#endif /* MACH_ASSERT */
+#if DEVELOPMENT || DEBUG
+ if (!PE_parse_boot_argn("exc_resource_threads",
+ &exc_resource_threads_enabled,
+ sizeof(exc_resource_threads_enabled))) {
+ exc_resource_threads_enabled = 1;
+ }
+ PE_parse_boot_argn("task_exc_guard_default",
+ &task_exc_guard_default,
+ sizeof(task_exc_guard_default));
+#endif /* DEVELOPMENT || DEBUG */
#if CONFIG_COREDUMP
if (!PE_parse_boot_argn("hwm_user_cores", &hwm_user_cores,
* Create the kernel task as the first task.
*/
#ifdef __LP64__
- if (task_create_internal(TASK_NULL, NULL, FALSE, TRUE, TF_NONE, TPF_NONE, &kernel_task) != KERN_SUCCESS)
+ if (task_create_internal(TASK_NULL, NULL, FALSE, TRUE, TRUE, TF_NONE, TPF_NONE, &kernel_task) != KERN_SUCCESS)
#else
- if (task_create_internal(TASK_NULL, NULL, FALSE, FALSE, TF_NONE, TPF_NONE, &kernel_task) != KERN_SUCCESS)
+ if (task_create_internal(TASK_NULL, NULL, FALSE, FALSE, FALSE, TF_NONE, TPF_NONE, &kernel_task) != KERN_SUCCESS)
#endif
panic("task_init\n");
assert(kernel_task == TASK_NULL);
#if MACH_ASSERT
- PE_parse_boot_argn("pmap_ledgers_panic", &pmap_ledgers_panic,
+ PE_parse_boot_argn("pmap_ledgers_panic",
+ &pmap_ledgers_panic,
sizeof (pmap_ledgers_panic));
+ PE_parse_boot_argn("pmap_ledgers_panic_leeway",
+ &pmap_ledgers_panic_leeway,
+ sizeof (pmap_ledgers_panic_leeway));
#endif /* MACH_ASSERT */
if ((t = ledger_template_create("Per-task ledger")) == NULL)
task_ledgers.purgeable_nonvolatile = ledger_entry_add(t, "purgeable_nonvolatile", "physmem", "bytes");
task_ledgers.purgeable_volatile_compressed = ledger_entry_add(t, "purgeable_volatile_compress", "physmem", "bytes");
task_ledgers.purgeable_nonvolatile_compressed = ledger_entry_add(t, "purgeable_nonvolatile_compress", "physmem", "bytes");
+
+ task_ledgers.network_volatile = ledger_entry_add(t, "network_volatile", "physmem", "bytes");
+ task_ledgers.network_nonvolatile = ledger_entry_add(t, "network_nonvolatile", "physmem", "bytes");
+ task_ledgers.network_volatile_compressed = ledger_entry_add(t, "network_volatile_compressed", "physmem", "bytes");
+ task_ledgers.network_nonvolatile_compressed = ledger_entry_add(t, "network_nonvolatile_compressed", "physmem", "bytes");
+
task_ledgers.platform_idle_wakeups = ledger_entry_add(t, "platform_idle_wakeups", "power",
"count");
task_ledgers.interrupt_wakeups = ledger_entry_add(t, "interrupt_wakeups", "power",
(task_ledgers.purgeable_nonvolatile < 0) ||
(task_ledgers.purgeable_volatile_compressed < 0) ||
(task_ledgers.purgeable_nonvolatile_compressed < 0) ||
+ (task_ledgers.network_volatile < 0) ||
+ (task_ledgers.network_nonvolatile < 0) ||
+ (task_ledgers.network_volatile_compressed < 0) ||
+ (task_ledgers.network_nonvolatile_compressed < 0) ||
(task_ledgers.platform_idle_wakeups < 0) ||
(task_ledgers.interrupt_wakeups < 0) ||
(task_ledgers.cpu_time_billed_to_me < 0) || (task_ledgers.cpu_time_billed_to_others < 0) ||
ledger_track_credit_only(t, task_ledgers.purgeable_volatile_compressed);
ledger_track_credit_only(t, task_ledgers.purgeable_nonvolatile_compressed);
+ ledger_track_credit_only(t, task_ledgers.network_volatile);
+ ledger_track_credit_only(t, task_ledgers.network_nonvolatile);
+ ledger_track_credit_only(t, task_ledgers.network_volatile_compressed);
+ ledger_track_credit_only(t, task_ledgers.network_nonvolatile_compressed);
+
ledger_track_maximum(t, task_ledgers.phys_footprint, 60);
#if MACH_ASSERT
if (pmap_ledgers_panic) {
ledger_panic_on_negative(t, task_ledgers.purgeable_nonvolatile);
ledger_panic_on_negative(t, task_ledgers.purgeable_volatile_compressed);
ledger_panic_on_negative(t, task_ledgers.purgeable_nonvolatile_compressed);
+
+ ledger_panic_on_negative(t, task_ledgers.network_volatile);
+ ledger_panic_on_negative(t, task_ledgers.network_nonvolatile);
+ ledger_panic_on_negative(t, task_ledgers.network_volatile_compressed);
+ ledger_panic_on_negative(t, task_ledgers.network_nonvolatile_compressed);
}
#endif /* MACH_ASSERT */
task_ledger_template = t;
}
+os_refgrp_decl(static, task_refgrp, "task", NULL);
+
kern_return_t
task_create_internal(
task_t parent_task,
coalition_t *parent_coalitions __unused,
boolean_t inherit_memory,
__unused boolean_t is_64bit,
+ boolean_t is_64bit_data,
uint32_t t_flags,
uint32_t t_procflags,
task_t *child_task) /* OUT */
return(KERN_RESOURCE_SHORTAGE);
/* one ref for just being alive; one for our caller */
- new_task->ref_count = 2;
+ os_ref_init_count(&new_task->ref_count, &task_refgrp, 2);
/* allocate with active entries */
assert(task_ledger_template != NULL);
new_task->legacy_stop_count = 0;
new_task->active = TRUE;
new_task->halting = FALSE;
- new_task->user_data = NULL;
new_task->priv_flags = 0;
new_task->t_flags = t_flags;
new_task->t_procflags = t_procflags;
new_task->crashed_thread_id = 0;
new_task->exec_token = 0;
+ new_task->task_exc_guard = task_exc_guard_default;
+
#if CONFIG_ATM
new_task->atm_context = NULL;
#endif
new_task->affinity_space = NULL;
- new_task->t_chud = 0;
+ new_task->t_kpc = 0;
new_task->pidsuspended = FALSE;
new_task->frozen = FALSE;
new_task->mem_notify_reserved = 0;
new_task->memlimit_attrs_reserved = 0;
-#if IMPORTANCE_INHERITANCE
- new_task->task_imp_base = NULL;
-#endif /* IMPORTANCE_INHERITANCE */
new_task->requested_policy = default_task_requested_policy;
new_task->effective_policy = default_task_effective_policy;
+ task_importance_init_from_parent(new_task, parent_task);
+
if (parent_task != TASK_NULL) {
new_task->sec_token = parent_task->sec_token;
new_task->audit_token = parent_task->audit_token;
shared_region = vm_shared_region_get(parent_task);
vm_shared_region_set(new_task, shared_region);
- if(task_has_64BitAddr(parent_task))
- task_set_64BitAddr(new_task);
+ if(task_has_64Bit_addr(parent_task)) {
+ task_set_64Bit_addr(new_task);
+ }
+
+ if(task_has_64Bit_data(parent_task)) {
+ task_set_64Bit_data(new_task);
+ }
+
new_task->all_image_info_addr = parent_task->all_image_info_addr;
new_task->all_image_info_size = parent_task->all_image_info_size;
new_task->pset_hint = parent_task->pset_hint = task_choose_pset(parent_task);
-#if IMPORTANCE_INHERITANCE
- ipc_importance_task_t new_task_imp = IIT_NULL;
- boolean_t inherit_receive = TRUE;
-
- if (task_is_marked_importance_donor(parent_task)) {
- new_task_imp = ipc_importance_for_task(new_task, FALSE);
- assert(IIT_NULL != new_task_imp);
- ipc_importance_task_mark_donor(new_task_imp, TRUE);
- }
-#if CONFIG_EMBEDDED
- /* Embedded only wants to inherit for exec copy task */
- if ((t_procflags & TPF_EXEC_COPY) == 0) {
- inherit_receive = FALSE;
- }
-#endif /* CONFIG_EMBEDDED */
-
- if (inherit_receive) {
- if (task_is_marked_importance_receiver(parent_task)) {
- if (IIT_NULL == new_task_imp)
- new_task_imp = ipc_importance_for_task(new_task, FALSE);
- assert(IIT_NULL != new_task_imp);
- ipc_importance_task_mark_receiver(new_task_imp, TRUE);
- }
- if (task_is_marked_importance_denap_receiver(parent_task)) {
- if (IIT_NULL == new_task_imp)
- new_task_imp = ipc_importance_for_task(new_task, FALSE);
- assert(IIT_NULL != new_task_imp);
- ipc_importance_task_mark_denap_receiver(new_task_imp, TRUE);
- }
- }
-
- if (IIT_NULL != new_task_imp) {
- assert(new_task->task_imp_base == new_task_imp);
- ipc_importance_task_release(new_task_imp);
- }
-#endif /* IMPORTANCE_INHERITANCE */
-
new_task->priority = BASEPRI_DEFAULT;
new_task->max_priority = MAXPRI_USER;
new_task->sec_token = KERNEL_SECURITY_TOKEN;
new_task->audit_token = KERNEL_AUDIT_TOKEN;
#ifdef __LP64__
- if(is_64bit)
- task_set_64BitAddr(new_task);
+ if(is_64bit) {
+ task_set_64Bit_addr(new_task);
+ }
#endif
+
+ if(is_64bit_data) {
+ task_set_64Bit_data(new_task);
+ }
+
new_task->all_image_info_addr = (mach_vm_address_t)0;
new_task->all_image_info_size = (mach_vm_size_t)0;
assert(new_task->task_io_stats != NULL);
bzero(new_task->task_io_stats, sizeof(struct io_stat_info));
- bzero(&(new_task->cpu_time_qos_stats), sizeof(struct _cpu_time_qos_stats));
+ bzero(&(new_task->cpu_time_eqos_stats), sizeof(new_task->cpu_time_eqos_stats));
+ bzero(&(new_task->cpu_time_rqos_stats), sizeof(new_task->cpu_time_rqos_stats));
bzero(&new_task->extmod_statistics, sizeof(new_task->extmod_statistics));
new_task->total_user_time = 0;
new_task->total_system_time = 0;
new_task->total_ptime = 0;
+ new_task->total_runnable_time = 0;
new_task->faults = 0;
new_task->pageins = 0;
new_task->cow_faults = 0;
new_task->dispatchqueue_offset = parent_task->dispatchqueue_offset;
}
- if (vm_backing_store_low && parent_task != NULL)
- new_task->priv_flags |= (parent_task->priv_flags&VM_BACKING_STORE_PRIV);
-
new_task->task_volatile_objects = 0;
new_task->task_nonvolatile_objects = 0;
new_task->task_purgeable_disowning = FALSE;
new_task->task_purgeable_disowned = FALSE;
-
+ queue_init(&new_task->task_objq);
+ task_objq_lock_init(new_task);
+
+#if __arm64__
+ new_task->task_legacy_footprint = FALSE;
+#endif /* __arm64__ */
+ new_task->task_region_footprint = FALSE;
+ new_task->task_has_crossed_thread_limit = FALSE;
+ new_task->task_thread_limit = 0;
#if CONFIG_SECLUDED_MEMORY
new_task->task_can_use_secluded_mem = FALSE;
new_task->task_could_use_secluded_mem = FALSE;
new_task->task_could_also_use_secluded_mem = FALSE;
+ new_task->task_suppressed_secluded = FALSE;
#endif /* CONFIG_SECLUDED_MEMORY */
+ /*
+ * t_flags is set up above. But since we don't
+ * support darkwake mode being set that way
+ * currently, we clear it out here explicitly.
+ */
+ new_task->t_flags &= ~(TF_DARKWAKE_MODE);
+
queue_init(&new_task->io_user_clients);
ipc_task_enable(new_task);
to_task->total_user_time = from_task->total_user_time;
to_task->total_system_time = from_task->total_system_time;
to_task->total_ptime = from_task->total_ptime;
+ to_task->total_runnable_time = from_task->total_runnable_time;
to_task->faults = from_task->faults;
to_task->pageins = from_task->pageins;
to_task->cow_faults = from_task->cow_faults;
to_task->purged_memory_critical = from_task->purged_memory_critical;
to_task->low_mem_privileged_listener = from_task->low_mem_privileged_listener;
*to_task->task_io_stats = *from_task->task_io_stats;
- to_task->cpu_time_qos_stats = from_task->cpu_time_qos_stats;
+ to_task->cpu_time_eqos_stats = from_task->cpu_time_eqos_stats;
+ to_task->cpu_time_rqos_stats = from_task->cpu_time_rqos_stats;
to_task->task_timer_wakeups_bin_1 = from_task->task_timer_wakeups_bin_1;
to_task->task_timer_wakeups_bin_2 = from_task->task_timer_wakeups_bin_2;
to_task->task_gpu_ns = from_task->task_gpu_ns;
task_t task)
{
ledger_amount_t credit, debit, interrupt_wakeups, platform_idle_wakeups;
- uint32_t refs;
+ os_ref_count_t refs;
if (task == TASK_NULL)
return;
refs = task_deallocate_internal(task);
#if IMPORTANCE_INHERITANCE
- if (refs > 1)
- return;
-
- atomic_load_explicit(&task->ref_count, memory_order_acquire);
-
if (refs == 1) {
/*
* If last ref potentially comes from the task's importance,
* disconnect it. But more task refs may be added before
* that completes, so wait for the reference to go to zero
- * naturually (it may happen on a recursive task_deallocate()
+ * naturally (it may happen on a recursive task_deallocate()
* from the ipc_importance_disconnect_task() call).
*/
if (IIT_NULL != task->task_imp_base)
ipc_importance_disconnect_task(task);
return;
}
-#else
- if (refs > 0)
- return;
-
- atomic_load_explicit(&task->ref_count, memory_order_acquire);
-
#endif /* IMPORTANCE_INHERITANCE */
+ if (refs > 0) {
+ return;
+ }
+
lck_mtx_lock(&tasks_threads_lock);
queue_remove(&terminated_tasks, task, task_t, tasks);
terminated_tasks_count--;
}
#endif
+ assert(queue_empty(&task->task_objq));
+
zfree(task_zone, task);
}
kern_return_t kr = KERN_SUCCESS;
int active;
thread_t thread, self, thread_return = THREAD_NULL;
- thread_t new_thread = THREAD_NULL;
+ thread_t new_thread = THREAD_NULL, first_thread = THREAD_NULL;
thread_t *thread_array;
uint32_t active_thread_count = 0, array_count = 0, i;
vm_map_t oldmap;
*
* Skip it.
*/
+#if DEVELOPMENT || DEBUG
+ memorystatus_abort_vm_map_fork(task);
+#endif
task_resume_internal(task);
return KERN_FAILURE;
}
/* Check with VM if vm_map_fork is allowed for this task */
- if (task_allowed_vm_map_fork(task)) {
+ if (memorystatus_allowed_vm_map_fork(task)) {
/* Setup new task's vmmap, switch from parent task's map to it COW map */
oldmap = new_task->map;
new_task->map = vm_map_fork(new_task->ledger,
task->map,
(VM_MAP_FORK_SHARE_IF_INHERIT_NONE |
- VM_MAP_FORK_PRESERVE_PURGEABLE));
+ VM_MAP_FORK_PRESERVE_PURGEABLE |
+ VM_MAP_FORK_CORPSE_FOOTPRINT));
vm_map_deallocate(oldmap);
+ /* copy ledgers that impact the memory footprint */
+ vm_map_copy_footprint_ledgers(task, new_task);
+
/* Get all the udata pointers from kqueue */
est_knotes = kevent_proc_copy_uptrs(p, NULL, 0);
if (est_knotes > 0) {
if (thread_array[i] == self) {
thread_return = new_thread;
new_task->crashed_thread_id = thread_tid(new_thread);
+ } else if (first_thread == NULL) {
+ first_thread = new_thread;
} else {
/* drop the extra ref returned by thread_create_with_continuation */
thread_deallocate(new_thread);
/* Copy thread name */
bsd_copythreadname(new_thread->uthread, thread_array[i]->uthread);
+ new_thread->thread_tag = thread_array[i]->thread_tag;
thread_copy_resource_info(new_thread, thread_array[i]);
}
+ /* return the first thread if we couldn't find the equivalent of current */
+ if (thread_return == THREAD_NULL) {
+ thread_return = first_thread;
+ }
+ else if (first_thread != THREAD_NULL) {
+ /* drop the extra ref returned by thread_create_with_continuation */
+ thread_deallocate(first_thread);
+ }
+
task_resume_internal(task);
for (i = 0; i < array_count; i++) {
return kr;
}
-/*
- * Place holder function to be filled by VM to return
- * TRUE if vm_map_fork is allowed on the given task.
- */
-boolean_t
-task_allowed_vm_map_fork(task_t task __unused)
-{
- return memorystatus_allowed_vm_map_fork(task);
-}
-
#if CONFIG_SECLUDED_MEMORY
extern void task_set_can_use_secluded_mem_locked(
task_t task,
}
task->task_could_use_secluded_mem = FALSE;
task->task_could_also_use_secluded_mem = FALSE;
+
+ if (task->task_suppressed_secluded) {
+ stop_secluded_suppression(task);
+ }
#endif /* CONFIG_SECLUDED_MEMORY */
if (!task->active) {
* Final cleanup:
* + no unnesting
* + remove immutable mappings
+ * + allow gaps in range
*/
(VM_MAP_REMOVE_NO_UNNESTING |
- VM_MAP_REMOVE_IMMUTABLE));
+ VM_MAP_REMOVE_IMMUTABLE |
+ VM_MAP_REMOVE_GAPS_OK));
/* release our shared region */
vm_shared_region_set(task, NULL);
*/
thread_interrupt_level(interrupt_save);
-#if KPERF
+#if KPC
/* force the task to release all ctrs */
- if (task->t_chud & TASK_KPC_FORCED_ALL_CTRS)
+ if (task->t_kpc & TASK_KPC_FORCED_ALL_CTRS)
kpc_force_all_ctrs(task, 0);
-#endif
+#endif /* KPC */
#if CONFIG_COALITIONS
/*
* Final cleanup:
* + no unnesting
* + remove immutable mappings
+ * + allow gaps in the range
*/
(VM_MAP_REMOVE_NO_UNNESTING |
- VM_MAP_REMOVE_IMMUTABLE));
+ VM_MAP_REMOVE_IMMUTABLE |
+ VM_MAP_REMOVE_GAPS_OK));
/*
* Kick out any IOKitUser handles to the task. At best they're stale,
* This is a recursive-style suspension of the task, a count of
* suspends is maintained.
*
- * CONDITIONS: the task is locked and active.
+ * CONDITIONS: the task is locked and active.
*/
void
task_hold_locked(
if (task->suspend_count++ > 0)
return;
+ if (task->bsd_info) {
+ workq_proc_suspended(task->bsd_info);
+ }
+
/*
* Iterate through all the threads and hold them.
*/
if (--task->suspend_count > 0)
return;
+ if (task->bsd_info) {
+ workq_proc_resumed(task->bsd_info);
+ }
+
queue_iterate(&task->threads, thread, thread_t, task_threads) {
thread_mtx_lock(thread);
thread_release(thread);
uint32_t *clean_count,
uint32_t *dirty_count,
uint32_t dirty_budget,
- boolean_t *shared,
- boolean_t walk_only)
+ uint32_t *shared_count,
+ int *freezer_error_code,
+ boolean_t eval_only)
{
kern_return_t kr = KERN_SUCCESS;
task_unlock(task);
- if (walk_only) {
- panic("task_freeze - walk_only == TRUE");
- } else {
- kr = vm_map_freeze(task->map, purgeable_count, wired_count, clean_count, dirty_count, dirty_budget, shared);
- }
+ kr = vm_map_freeze(task->map,
+ purgeable_count,
+ wired_count,
+ clean_count,
+ dirty_count,
+ dirty_budget,
+ shared_count,
+ freezer_error_code,
+ eval_only);
task_lock(task);
- if (walk_only == FALSE && kr == KERN_SUCCESS)
+ if ((kr == KERN_SUCCESS) && (eval_only == FALSE)) {
task->frozen = TRUE;
+ }
+
task->changing_freeze_state = FALSE;
thread_wakeup(&task->changing_freeze_state);
task_unlock(task);
- if (VM_CONFIG_COMPRESSOR_IS_PRESENT) {
+ if (VM_CONFIG_COMPRESSOR_IS_PRESENT &&
+ (eval_only == FALSE)) {
vm_wake_compactor_swapper();
/*
* We do an explicit wakeup of the swapout thread here
kern_return_t
task_send_trace_memory(
- task_t target_task,
+ __unused task_t target_task,
__unused uint32_t pid,
__unused uint64_t uniqueid)
{
- kern_return_t kr = KERN_INVALID_ARGUMENT;
- if (target_task == TASK_NULL)
- return (KERN_INVALID_ARGUMENT);
-
-#if CONFIG_ATM
- kr = atm_send_proc_inspect_notification(target_task,
- pid,
- uniqueid);
-
-#endif
- return (kr);
+ return KERN_INVALID_ARGUMENT;
}
+
/*
* This routine was added, pretty much exclusively, for registering the
* RPC glue vector for in-kernel short circuited tasks. Rather than
if (thread->options & TH_OPT_IDLE_THREAD)
continue;
- thread_read_times(thread, &user_time, &system_time);
+ thread_read_times(thread, &user_time, &system_time, NULL);
time_value_add(×_info->user_time, &user_time);
time_value_add(×_info->system_time, &system_time);
/* only set format on output for those expecting it */
if (*task_info_count >= TASK_DYLD_INFO_COUNT) {
- info->all_image_info_format = task_has_64BitAddr(task) ?
+ info->all_image_info_format = task_has_64Bit_addr(task) ?
TASK_DYLD_ALL_IMAGE_INFO_64 :
TASK_DYLD_ALL_IMAGE_INFO_32 ;
*task_info_count = TASK_DYLD_INFO_COUNT;
flags_info = (task_flags_info_t)task_info_out;
/* only publish the 64-bit flag of the task */
- flags_info->flags = task->t_flags & TF_64B_ADDR;
+ flags_info->flags = task->t_flags & (TF_64B_ADDR | TF_64B_DATA);
*task_info_count = TASK_FLAGS_INFO_COUNT;
break;
if (task->itk_space){
dbg_info->ipc_space_size = task->itk_space->is_table_size;
}
+
+ dbg_info->suspend_count = task->suspend_count;
error = KERN_SUCCESS;
*task_info_count = TASK_DEBUG_INFO_INTERNAL_COUNT;
}
+/* This function updates the cpu time in the arrays for each
+ * effective and requested QoS class
+ */
+void
+task_update_cpu_time_qos_stats(
+ task_t task,
+ uint64_t *eqos_stats,
+ uint64_t *rqos_stats)
+{
+ if (!eqos_stats && !rqos_stats) {
+ return;
+ }
+
+ task_lock(task);
+ thread_t thread;
+ queue_iterate(&task->threads, thread, thread_t, task_threads) {
+ if (thread->options & TH_OPT_IDLE_THREAD) {
+ continue;
+ }
+
+ thread_update_qos_cpu_time(thread);
+ }
+
+ if (eqos_stats) {
+ eqos_stats[THREAD_QOS_DEFAULT] += task->cpu_time_eqos_stats.cpu_time_qos_default;
+ eqos_stats[THREAD_QOS_MAINTENANCE] += task->cpu_time_eqos_stats.cpu_time_qos_maintenance;
+ eqos_stats[THREAD_QOS_BACKGROUND] += task->cpu_time_eqos_stats.cpu_time_qos_background;
+ eqos_stats[THREAD_QOS_UTILITY] += task->cpu_time_eqos_stats.cpu_time_qos_utility;
+ eqos_stats[THREAD_QOS_LEGACY] += task->cpu_time_eqos_stats.cpu_time_qos_legacy;
+ eqos_stats[THREAD_QOS_USER_INITIATED] += task->cpu_time_eqos_stats.cpu_time_qos_user_initiated;
+ eqos_stats[THREAD_QOS_USER_INTERACTIVE] += task->cpu_time_eqos_stats.cpu_time_qos_user_interactive;
+ }
+
+ if (rqos_stats) {
+ rqos_stats[THREAD_QOS_DEFAULT] += task->cpu_time_rqos_stats.cpu_time_qos_default;
+ rqos_stats[THREAD_QOS_MAINTENANCE] += task->cpu_time_rqos_stats.cpu_time_qos_maintenance;
+ rqos_stats[THREAD_QOS_BACKGROUND] += task->cpu_time_rqos_stats.cpu_time_qos_background;
+ rqos_stats[THREAD_QOS_UTILITY] += task->cpu_time_rqos_stats.cpu_time_qos_utility;
+ rqos_stats[THREAD_QOS_LEGACY] += task->cpu_time_rqos_stats.cpu_time_qos_legacy;
+ rqos_stats[THREAD_QOS_USER_INITIATED] += task->cpu_time_rqos_stats.cpu_time_qos_user_initiated;
+ rqos_stats[THREAD_QOS_USER_INTERACTIVE] += task->cpu_time_rqos_stats.cpu_time_qos_user_interactive;
+ }
+
+ task_unlock(task);
+}
+
kern_return_t
task_purgable_info(
task_t task,
return kr;
}
-extern kern_return_t
-task_violated_guard(mach_exception_code_t, mach_exception_subcode_t, void *);
-
kern_return_t
task_violated_guard(
mach_exception_code_t code,
int pid = 0;
const char *procname = "unknown";
mach_exception_data_type_t code[EXCEPTION_CODE_MAX];
+ boolean_t send_sync_exc_resource = FALSE;
#ifdef MACH_BSD
pid = proc_selfpid();
return;
}
- if (task->bsd_info != NULL)
+ if (task->bsd_info != NULL) {
procname = proc_name_address(current_task()->bsd_info);
+ send_sync_exc_resource = proc_send_synchronous_EXC_RESOURCE(current_task()->bsd_info);
+ }
#endif
#if CONFIG_COREDUMP
if (hwm_user_cores) {
EXC_RESOURCE_ENCODE_FLAVOR(code[0], FLAVOR_HIGH_WATERMARK);
EXC_RESOURCE_HWM_ENCODE_LIMIT(code[0], max_footprint_mb);
- /* Do not generate a corpse fork if the violation is a fatal one */
- if (is_fatal || exc_via_corpse_forking == 0) {
- /* Do not send a EXC_RESOURCE is corpse_for_fatal_memkill is set */
- if (corpse_for_fatal_memkill == 0) {
+ /*
+ * Do not generate a corpse fork if the violation is a fatal one
+ * or the process wants synchronous EXC_RESOURCE exceptions.
+ */
+ if (is_fatal || send_sync_exc_resource || exc_via_corpse_forking == 0) {
+ /* Do not send a EXC_RESOURCE if corpse_for_fatal_memkill is set */
+ if (send_sync_exc_resource || corpse_for_fatal_memkill == 0) {
/*
* Use the _internal_ variant so that no user-space
* process can resume our task from under us.
}
#endif /* CONFIG_MEMORYSTATUS */
+void
+task_set_thread_limit(task_t task, uint16_t thread_limit)
+{
+ assert(task != kernel_task);
+ if (thread_limit <= TASK_MAX_THREAD_LIMIT) {
+ task_lock(task);
+ task->task_thread_limit = thread_limit;
+ task_unlock(task);
+ }
+}
+
/*
* We need to export some functions to other components that
* are currently implemented in macros within the osfmk
switch (flavor) {
case TASK_INSPECT_BASIC_COUNTS: {
struct task_inspect_basic_counts *bc;
- uint64_t task_counts[MT_CORE_NFIXED];
+ uint64_t task_counts[MT_CORE_NFIXED] = { 0 };
if (size < TASK_INSPECT_BASIC_COUNTS_COUNT) {
kr = KERN_INVALID_ARGUMENT;
boolean_t
task_can_use_secluded_mem(
- task_t task)
+ task_t task,
+ boolean_t is_alloc)
{
if (task->task_can_use_secluded_mem) {
assert(task->task_could_use_secluded_mem);
assert(num_tasks_can_use_secluded_mem > 0);
return TRUE;
}
+
+ /*
+ * If a single task is using more than some amount of
+ * memory, allow it to dip into secluded and also begin
+ * suppression of secluded memory until the tasks exits.
+ */
+ if (is_alloc && secluded_shutoff_trigger != 0) {
+ uint64_t phys_used = get_task_phys_footprint(task);
+ if (phys_used > secluded_shutoff_trigger) {
+ start_secluded_suppression(task);
+ return TRUE;
+ }
+ }
+
return FALSE;
}
{
dst_task->vtimers = src_task->vtimers;
}
+
+#if DEVELOPMENT || DEBUG
+int vm_region_footprint = 0;
+#endif /* DEVELOPMENT || DEBUG */
+
+boolean_t
+task_self_region_footprint(void)
+{
+#if DEVELOPMENT || DEBUG
+ if (vm_region_footprint) {
+ /* system-wide override */
+ return TRUE;
+ }
+#endif /* DEVELOPMENT || DEBUG */
+ return current_task()->task_region_footprint;
+}
+
+void
+task_self_region_footprint_set(
+ boolean_t newval)
+{
+ task_t curtask;
+
+ curtask = current_task();
+ task_lock(curtask);
+ if (newval) {
+ curtask->task_region_footprint = TRUE;
+ } else {
+ curtask->task_region_footprint = FALSE;
+ }
+ task_unlock(curtask);
+}
+
+void
+task_set_darkwake_mode(task_t task, boolean_t set_mode)
+{
+ assert(task);
+
+ task_lock(task);
+
+ if (set_mode) {
+ task->t_flags |= TF_DARKWAKE_MODE;
+ } else {
+ task->t_flags &= ~(TF_DARKWAKE_MODE);
+ }
+
+ task_unlock(task);
+}
+
+boolean_t
+task_get_darkwake_mode(task_t task)
+{
+ assert(task);
+ return ((task->t_flags & TF_DARKWAKE_MODE) != 0);
+}
+
+#if __arm64__
+void
+task_set_legacy_footprint(
+ task_t task,
+ boolean_t new_val)
+{
+ task_lock(task);
+ task->task_legacy_footprint = new_val;
+ task_unlock(task);
+}
+#endif /* __arm64__ */
projects / apple / xnu.git / blobdiff