]> git.saurik.com Git - apple/xnu.git/blobdiff - osfmk/kern/bsd_kern.c
xnu-1504.7.4.tar.gz
[apple/xnu.git] / osfmk / kern / bsd_kern.c
index 57c4559d207ef97aa8bef91540c5a6ce41d11292..822c07ce955b5403365beffc0529ba6278578952 100644 (file)
@@ -1,25 +1,32 @@
 /*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 #include <mach/mach_types.h>
+#include <mach/machine/vm_param.h>
 
 #include <kern/kern_types.h>
 #include <kern/processor.h>
@@ -31,6 +38,7 @@
 #include <ipc/ipc_port.h>
 #include <ipc/ipc_object.h>
 #include <vm/vm_map.h>
+#include <vm/vm_kern.h>
 #include <vm/pmap.h>
 #include <vm/vm_protos.h> /* last */
 
@@ -50,9 +58,10 @@ boolean_t thread_should_abort(thread_t);
 boolean_t current_thread_aborted(void);
 void task_act_iterate_wth_args(task_t, void(*)(thread_t, void *), void *);
 void ipc_port_release(ipc_port_t);
-boolean_t is_thread_active(thread_t);
 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);
+
 
 /*
  *
@@ -62,6 +71,14 @@ void  *get_bsdtask_info(task_t t)
        return(t->bsd_info);
 }
 
+/*
+ *
+ */
+void *get_bsdthreadtask_info(thread_t th)
+{
+       return(th->task != TASK_NULL ? th->task->bsd_info : NULL);
+}
+
 /*
  *
  */
@@ -116,15 +133,15 @@ get_signalact(
 
        for (inc  = (thread_t)queue_first(&task->threads);
                        !queue_end(&task->threads, (queue_entry_t)inc); ) {
-                thread_mtx_lock(inc);
-                if (inc->active  && 
-                           (inc->state & (TH_ABORT|TH_ABORT_SAFELY)) != TH_ABORT) {
-                    thread = inc;
-                                       break;
-                }
-                thread_mtx_unlock(inc);
-
-                               inc = (thread_t)queue_next(&inc->task_threads);
+               thread_mtx_lock(inc);
+               if (inc->active &&
+                               (inc->sched_mode & TH_MODE_ISABORTED) != TH_MODE_ABORT) {
+                       thread = inc;
+                       break;
+               }
+               thread_mtx_unlock(inc);
+
+               inc = (thread_t)queue_next(&inc->task_threads);
        }
 
        if (result_out) 
@@ -168,7 +185,7 @@ check_actforsig(
                        thread_mtx_lock(inc);
 
                        if (inc->active  && 
-                               (inc->state & (TH_ABORT|TH_ABORT_SAFELY)) != TH_ABORT) {
+                                       (inc->sched_mode & TH_MODE_ISABORTED) != TH_MODE_ABORT) {
                                result = KERN_SUCCESS;
                                break;
                        }
@@ -229,6 +246,22 @@ ipc_space_t  get_task_ipcspace(task_t t)
        return(t->itk_space);
 }
 
+int get_task_numactivethreads(task_t task)
+{
+       thread_t        inc;
+       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)) 
+       {
+               if(inc->active)
+                       num_active_thr++;
+       }
+       task_unlock(task);
+       return num_active_thr;
+}
+
 int  get_task_numacts(task_t t)
 {
        return(t->thread_count);
@@ -245,12 +278,12 @@ int is_64signalregset(void)
 }
 
 /*
- * The old map reference is returned.
+ * Swap in a new map for the task/thread pair; the old map reference is
+ * returned.
  */
 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)
 {
-       thread_t thread = current_thread();
        vm_map_t old_map;
 
        if (task != thread->task)
@@ -260,6 +293,11 @@ swap_task_map(task_t task,vm_map_t map)
        old_map = task->map;
        thread->map = task->map = map;
        task_unlock(task);
+
+#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
+       inval_copy_windows(thread);
+#endif
+
        return old_map;
 }
 
@@ -274,53 +312,27 @@ pmap_t  get_task_pmap(task_t t)
 /*
  *
  */
-pmap_t  get_map_pmap(vm_map_t map)
-{
-       return(map->pmap);
-}
-/*
- *
- */
-task_t get_threadtask(thread_t th)
-{
-       return(th->task);
-}
-
-
-/*
- *
- */
-boolean_t is_thread_idle(thread_t th)
-{
-       return((th->state & TH_IDLE) == TH_IDLE);
-}
-
-/*
- *
- */
-boolean_t is_thread_running(thread_t th)
+uint64_t get_task_resident_size(task_t task) 
 {
-       return((th->state & TH_RUN) == TH_RUN);
+       vm_map_t map;
+       
+       map = (task == kernel_task) ? kernel_map: task->map;
+       return((uint64_t)pmap_resident_count(map->pmap) * PAGE_SIZE_64);
 }
 
 /*
  *
  */
-thread_t
-getshuttle_thread(
-       thread_t        th)
+pmap_t  get_map_pmap(vm_map_t map)
 {
-       return(th);
+       return(map->pmap);
 }
-
 /*
  *
  */
-thread_t
-getact_thread(
-       thread_t        th)
+task_t get_threadtask(thread_t th)
 {
-       return(th);
+       return(th->task);
 }
 
 /*
@@ -440,7 +452,7 @@ boolean_t
 thread_should_abort(
        thread_t th)
 {
-       return ((th->state & (TH_ABORT|TH_ABORT_SAFELY)) == TH_ABORT);
+       return ((th->sched_mode & TH_MODE_ISABORTED) == TH_MODE_ABORT);
 }
 
 /*
@@ -458,14 +470,14 @@ current_thread_aborted (
        thread_t th = current_thread();
        spl_t s;
 
-       if ((th->state & (TH_ABORT|TH_ABORT_SAFELY)) == TH_ABORT &&
+       if ((th->sched_mode & TH_MODE_ISABORTED) == TH_MODE_ABORT &&
                        (th->options & TH_OPT_INTMASK) != THREAD_UNINT)
                return (TRUE);
-       if (th->state & TH_ABORT_SAFELY) {
+       if (th->sched_mode & TH_MODE_ABORTSAFELY) {
                s = splsched();
                thread_lock(th);
-               if (th->state & TH_ABORT_SAFELY)
-                       th->state &= ~(TH_ABORT|TH_ABORT_SAFELY);
+               if (th->sched_mode & TH_MODE_ABORTSAFELY)
+                       th->sched_mode &= ~TH_MODE_ISABORTED;
                thread_unlock(th);
                splx(s);
        }
@@ -501,13 +513,6 @@ ipc_port_release(
        ipc_object_release(&(port)->ip_object);
 }
 
-boolean_t
-is_thread_active(
-       thread_t th)
-{
-       return(th->active);
-}
-
 void
 astbsd_on(void)
 {
@@ -517,3 +522,175 @@ astbsd_on(void)
        ast_on_fast(AST_BSD);
        (void)ml_set_interrupts_enabled(reenable);
 }
+
+
+#include <sys/bsdtask_info.h>
+
+void
+fill_taskprocinfo(task_t task, struct proc_taskinfo_internal * ptinfo)
+{
+       vm_map_t map;
+       task_absolutetime_info_data_t   tinfo;
+       thread_t thread;
+       int cswitch = 0, numrunning = 0;
+       
+       map = (task == kernel_task)? kernel_map: task->map;
+
+       ptinfo->pti_virtual_size  = map->size;
+       ptinfo->pti_resident_size =
+               (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);
+
+       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;
+
+               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);
+               tinfo.threads_system += tval;
+               tinfo.total_system += tval;
+       }
+
+       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 = task->faults;
+       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;
+       ptinfo->pti_syscalls_unix = task->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, 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;
+
+       task_lock(task);
+
+       for (thact  = (thread_t)queue_first(&task->threads);
+                       !queue_end(&task->threads, (queue_entry_t)thact); ) {
+#if defined(__ppc__) || defined(__arm__)
+               if (thact->machine.cthread_self == thaddr)
+#elif defined (__i386__) || defined (__x86_64__)
+               if (thact->machine.pcb->cthread_self == thaddr)
+#else
+#error architecture not supported
+#endif
+               {
+               
+                       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;       
+                       }
+#if 0
+                       ptinfo->pth_user_time = timer_grab(&basic_info.user_time);
+                       ptinfo->pth_system_time = timer_grab(&basic_info.system_time);
+#else
+                       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));
+
+#endif
+                       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->priority;
+                       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)queue_next(&thact->task_threads);
+       }
+       err = 1;
+
+out:
+       task_unlock(task);
+       return(err);
+}
+
+int
+fill_taskthreadlist(task_t task, void * buffer, int thcount)
+{
+       int numthr=0;
+       thread_t thact;
+       uint64_t * uptr;
+       uint64_t  thaddr;
+
+       uptr = (uint64_t *)buffer;
+
+       task_lock(task);
+
+       for (thact  = (thread_t)queue_first(&task->threads);
+                       !queue_end(&task->threads, (queue_entry_t)thact); ) {
+#if defined(__ppc__) || defined(__arm__)
+               thaddr = thact->machine.cthread_self;
+#elif defined (__i386__) || defined (__x86_64__)
+               thaddr = thact->machine.pcb->cthread_self;
+#else
+#error architecture not supported
+#endif
+               *uptr++ = thaddr;
+               numthr++;
+               if (numthr >= thcount)
+                       goto out;
+               thact = (thread_t)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);
+}
+
+void 
+syscall_exit_funnelcheck(void)
+{
+        thread_t thread;
+
+       thread = current_thread();
+
+        if (thread->funnel_lock)
+               panic("syscall exit with funnel held\n");
+}