xnu-3248.30.4.tar.gz

[apple/xnu.git] / osfmk / kern / bsd_kern.c

diff --git a/osfmk/kern/bsd_kern.c b/osfmk/kern/bsd_kern.c
index 3fc7a40a71a78c040efad7800e6e88e11da93c89..713466a53c35cf766f26ae8970d2e5b0fd9eeef0 100644 (file)
--- a/osfmk/kern/bsd_kern.c
+++ b/osfmk/kern/bsd_kern.c
@@ -43,13 +43,14 @@
 #include <vm/pmap.h>
 #include <vm/vm_protos.h> /* last */
 #include <sys/resource.h>
+#include <sys/signal.h>
 
 #undef thread_should_halt
 
 /* BSD KERN COMPONENT INTERFACE */
 
 task_t bsd_init_task = TASK_NULL;
-char   init_task_failure_data[1024];
+boolean_t init_task_died;
 extern unsigned int not_in_kdp; /* Skip acquiring locks if we're in kdp */
  
 thread_t get_firstthread(task_t);
@@ -63,6 +64,11 @@ 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);
+
+#if MACH_BSD
+extern void psignal(void *, int);
+#endif
 
 /*
  *
@@ -72,6 +78,13 @@ 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);
+       }
+}
 /*
  *
  */
@@ -226,9 +239,9 @@ 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)
 {
@@ -323,6 +336,10 @@ 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)
 {
@@ -358,16 +375,27 @@ uint64_t get_task_resident_max(task_t task)
 
 uint64_t get_task_purgeable_size(task_t task) 
 {
-       vm_map_t map;
-    mach_vm_size_t  volatile_virtual_size;
-    mach_vm_size_t  volatile_resident_size;
-    mach_vm_size_t  volatile_pmap_size;
-       
-       map = (task == kernel_task) ? kernel_map: task->map;
-       vm_map_query_volatile(map, &volatile_virtual_size, &volatile_resident_size, &volatile_pmap_size);
+       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;
+       }
 
-       return((uint64_t)volatile_resident_size);
+       volatile_size += (credit - debit);
+
+       return volatile_size;
 }
+
 /*
  *
  */
@@ -413,13 +441,6 @@ uint64_t get_task_cpu_time(task_t task)
        return 0;
 }
 
-/*
- *
- */
-pmap_t  get_map_pmap(vm_map_t map)
-{
-       return(map->pmap);
-}
 /*
  *
  */
@@ -473,10 +494,11 @@ 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;
                }
@@ -501,10 +523,11 @@ 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;
                }
@@ -620,17 +643,6 @@ task_act_iterate_wth_args(
 }
 
 
-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 <sys/bsdtask_info.h>
 
 void
@@ -643,6 +655,8 @@ fill_taskprocinfo(task_t task, struct proc_taskinfo_internal * ptinfo)
        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;
@@ -650,8 +664,6 @@ 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);
 
@@ -746,7 +758,7 @@ 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))