xnu-792.1.5.tar.gz

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

diff --git a/osfmk/kern/syscall_emulation.c b/osfmk/kern/syscall_emulation.c
index 028e523d99309738013e75ceb6ae3d4a96edf31c..54f50e76b7b7025f640fca0e77b59cb68d1ddf73 100644 (file)
--- a/osfmk/kern/syscall_emulation.c
+++ b/osfmk/kern/syscall_emulation.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -49,122 +49,24 @@
  */
 /*
  */
-
+#include <mach/mach_types.h>
 #include <mach/error.h>
 #include <mach/vm_param.h>
 #include <mach/boolean.h>
+#include <mach/task.h>
+
+#include <kern/kern_types.h>
 #include <kern/misc_protos.h>
-#include <kern/syscall_emulation.h>
 #include <kern/task.h>
 #include <kern/kalloc.h>
+
+#include <vm/vm_map.h>
 #include <vm/vm_kern.h>
-#include <machine/thread.h>    /* for syscall_emulation_sync */
 
 /*
  * Exported interface
  */
 
-/*
- * WARNING:
- * This code knows that kalloc() allocates memory most efficiently
- * in sizes that are powers of 2, and asks for those sizes.
- */
-
-/*
- * Go from number of entries to size of struct eml_dispatch and back.
- */
-#define        base_size       (sizeof(struct eml_dispatch) - sizeof(eml_routine_t))
-#define        count_to_size(count) \
-       (base_size + sizeof(vm_offset_t) * (count))
-
-#define        size_to_count(size) \
-       ( ((size) - base_size) / sizeof(vm_offset_t) )
-
-/* Forwards */
-kern_return_t
-task_set_emulation_vector_internal(
-       task_t                  task,
-       int                     vector_start,
-       emulation_vector_t      emulation_vector,
-       mach_msg_type_number_t  emulation_vector_count);
-
-/*
- *  eml_init:  initialize user space emulation code
- */
-void
-eml_init(void)
-{
-}
-
-/*
- * eml_task_reference() [Exported]
- *
- *     Bumps the reference count on the common emulation
- *     vector.
- */
-
-void
-eml_task_reference(
-       task_t  task,
-       task_t  parent)
-{
-       register eml_dispatch_t eml;
-
-       if (parent == TASK_NULL)
-           eml = EML_DISPATCH_NULL;
-       else
-           eml = parent->eml_dispatch;
-
-       if (eml != EML_DISPATCH_NULL) {
-           mutex_lock(&eml->lock);
-           eml->ref_count++;
-           mutex_unlock(&eml->lock);
-       }
-       task->eml_dispatch = eml;
-}
-
-
-/*
- * eml_task_deallocate() [Exported]
- *
- *     Cleans up after the emulation code when a process exits.
- */
- 
-void
-eml_task_deallocate(
-       task_t task)
-{
-       register eml_dispatch_t eml;
-
-       eml = task->eml_dispatch;
-       if (eml != EML_DISPATCH_NULL) {
-           int count;
-
-           mutex_lock(&eml->lock);
-           count = --eml->ref_count;
-           mutex_unlock(&eml->lock);
-
-           if (count == 0)
-               kfree((vm_offset_t)eml, count_to_size(eml->disp_count));
-
-           task->eml_dispatch = EML_DISPATCH_NULL;
-       }
-}
-
-/*
- *   task_set_emulation_vector:  [Server Entry]
- *   set a list of emulated system calls for this task.
- */
-kern_return_t
-task_set_emulation_vector_internal(
-       task_t                  task,
-       int                     vector_start,
-       emulation_vector_t      emulation_vector,
-       mach_msg_type_number_t  emulation_vector_count)
-{
-       return KERN_NOT_SUPPORTED;
-}
-
 /*
  *     task_set_emulation_vector:  [Server Entry]
  *