/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#include <kern/kern_types.h>
#include <mach/mach_types.h>
-#include <vm/pmap.h>
-
-#ifdef __APPLE_API_PRIVATE
+#include <sys/cdefs.h>
#ifdef MACH_KERNEL_PRIVATE
#include <mach/mach_param.h>
#include <mach/task_info.h>
#include <mach/exception_types.h>
-#include <mach_prof.h>
-#include <machine/task.h>
+
+#include <kern/cpu_data.h>
#include <kern/queue.h>
#include <kern/exception.h>
#include <kern/lock.h>
-#include <kern/syscall_emulation.h>
-#include <norma_task.h>
+#include <kern/thread.h>
+
#include <mach_host.h>
-#include <fast_tas.h>
-#include <task_swapper.h>
-#include <kern/thread_act.h>
+#include <mach_prof.h>
-typedef struct task {
+struct task {
/* Synchronization/destruction information */
decl_mutex_data(,lock) /* Task's lock */
int ref_count; /* Number of references to me */
boolean_t active; /* Task has not been terminated */
- boolean_t kernel_loaded; /* Created with kernel_task_create() */
/* Miscellaneous */
vm_map_t map; /* Address space description */
void *user_data; /* Arbitrary data settable via IPC */
int suspend_count; /* Internal scheduling only */
-#if TASK_SWAPPER
- /* Task swapper data */
- unsigned short swap_state; /* swap state (e.g. IN/OUT) */
- unsigned short swap_flags; /* swap flags (e.g. MAKE_UNSWAPP) */
- unsigned int swap_stamp; /* when last swapped */
- unsigned long swap_rss; /* size (pages) when last swapped */
- int swap_ast_waiting; /* number of threads that have not */
- /* reached a clean point and halted */
- int swap_nswap; /* number of times this task swapped */
- queue_chain_t swapped_tasks; /* list of non-resident tasks */
-#endif /* TASK_SWAPPER */
-
- /* Activations in this task */
- queue_head_t thr_acts; /* list of thread_activations */
- int thr_act_count;
- int res_act_count;
- int active_act_count; /* have not terminate_self yet */
+ /* Threads in this task */
+ queue_head_t threads;
+ int thread_count;
+ int active_thread_count;
processor_set_t processor_set; /* processor set for new threads */
#if MACH_HOST
integer_t priority; /* base priority for threads */
integer_t max_priority; /* maximum priority for threads */
- /* Task security token */
+ /* Task security and audit tokens */
security_token_t sec_token;
+ audit_token_t audit_token;
/* Statistics */
- time_value_t total_user_time; /* user time for dead threads */
- time_value_t total_system_time; /* system time for dead threads */
+ uint64_t total_user_time; /* terminated threads only */
+ uint64_t total_system_time;
#if MACH_PROF
boolean_t task_profiled; /* is task being profiled ? */
int semaphores_owned; /* number of semaphores owned */
int lock_sets_owned; /* number of lock sets owned */
- /* User space system call emulation support */
- struct eml_dispatch *eml_dispatch;
-
- /* Ledgers */
+ /* Ledgers */
struct ipc_port *wired_ledger_port;
struct ipc_port *paged_ledger_port;
+ unsigned int priv_flags; /* privilege resource flags */
+#define VM_BACKING_STORE_PRIV 0x1
-#if NORMA_TASK
- long child_node; /* if != -1, node for new children */
-#endif /* NORMA_TASK */
-#if FAST_TAS
- vm_offset_t fast_tas_base;
- vm_offset_t fast_tas_end;
-#endif /* FAST_TAS */
- MACHINE_TASK
integer_t faults; /* faults counter */
integer_t pageins; /* pageins counter */
integer_t cow_faults; /* copy on write fault counter */
#ifdef MACH_BSD
void *bsd_info;
#endif
- vm_offset_t system_shared_region;
- vm_offset_t dynamic_working_set;
-} Task;
+ struct shared_region_mapping *system_shared_region;
+ struct tws_hash *dynamic_working_set;
+ uint32_t taskFeatures[2]; /* Special feature for this task */
+#define tf64BitAddr 0x80000000 /* Task has 64-bit addressing */
+#define tf64BitData 0x40000000 /* Task has 64-bit data registers */
+#define task_has_64BitAddr(task) \
+ (((task)->taskFeatures[0] & tf64BitAddr) != 0)
+#define task_set_64BitAddr(task) \
+ ((task)->taskFeatures[0] |= tf64BitAddr)
+#define task_clear_64BitAddr(task) \
+ ((task)->taskFeatures[0] &= ~tf64BitAddr)
+
+};
#define task_lock(task) mutex_lock(&(task)->lock)
#define task_lock_try(task) mutex_try(&(task)->lock)
#define task_unlock(task) mutex_unlock(&(task)->lock)
-#define itk_lock_init(task) mutex_init(&(task)->itk_lock_data, \
- ETAP_THREAD_TASK_ITK)
+#define itk_lock_init(task) mutex_init(&(task)->itk_lock_data, 0)
#define itk_lock(task) mutex_lock(&(task)->itk_lock_data)
#define itk_unlock(task) mutex_unlock(&(task)->itk_lock_data)
-#define task_reference_locked(task) ((task)->ref_count++)
+#define task_reference_internal(task) \
+ hw_atomic_add(&(task)->ref_count, 1)
-/*
- * Internal only routines
- */
+#define task_deallocate_internal(task) \
+ hw_atomic_sub(&(task)->ref_count, 1)
+
+#define task_reference(task) \
+MACRO_BEGIN \
+ if ((task) != TASK_NULL) \
+ task_reference_internal(task); \
+MACRO_END
+
+extern kern_return_t kernel_task_create(
+ task_t task,
+ vm_offset_t map_base,
+ vm_size_t map_size,
+ task_t *child);
/* Initialize task module */
extern void task_init(void);
-/* task create */
-extern kern_return_t task_create_local(
- task_t parent_task,
- boolean_t inherit_memory,
- boolean_t kernel_loaded,
- task_t *child_task); /* OUT */
+#define current_task_fast() (current_thread()->task)
+#define current_task() current_task_fast()
-extern void consider_task_collect(void);
+#else /* MACH_KERNEL_PRIVATE */
-#define current_task_fast() (current_act_fast()->task)
-#define current_task() current_task_fast()
+__BEGIN_DECLS
+
+extern task_t current_task(void);
+
+extern void task_reference(task_t task);
+
+__END_DECLS
#endif /* MACH_KERNEL_PRIVATE */
-extern task_t kernel_task;
+__BEGIN_DECLS
+
+#ifdef XNU_KERNEL_PRIVATE
-/* Temporarily hold all threads in a task */
+/* Hold all threads in a task */
extern kern_return_t task_hold(
- task_t task);
+ task_t task);
-/* Release temporary hold on all threads in a task */
+/* Release hold on all threads in a task */
extern kern_return_t task_release(
- task_t task);
+ task_t task);
-/* Get a task prepared for major changes */
+/* Halt all other threads in the current task */
extern kern_return_t task_halt(
- task_t task);
+ task_t task);
+
+extern kern_return_t task_terminate_internal(
+ task_t task);
+
+extern kern_return_t task_create_internal(
+ task_t parent_task,
+ boolean_t inherit_memory,
+ task_t *child_task); /* OUT */
-#if defined(MACH_KERNEL_PRIVATE) || defined(BSD_BUILD)
extern kern_return_t task_importance(
task_t task,
integer_t importance);
-#endif
+
+extern void task_set_64bit(
+ task_t task,
+ boolean_t is64bit);
+
+extern void task_backing_store_privileged(
+ task_t task);
+
+extern void task_working_set_disable(
+ task_t task);
+
+/* Get number of activations in a task */
+extern int get_task_numacts(
+ task_t task);
+
/* JMM - should just be temporary (implementation in bsd_kern still) */
-extern void *get_bsdtask_info(task_t);
extern void set_bsdtask_info(task_t,void *);
-extern vm_map_t get_task_map(task_t);
+extern vm_map_t get_task_map_reference(task_t);
extern vm_map_t swap_task_map(task_t, vm_map_t);
extern pmap_t get_task_pmap(task_t);
-extern boolean_t task_reference_try(task_t task);
+extern boolean_t is_kerneltask(task_t task);
-#endif /* __APPLE_API_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
-#if !defined(MACH_KERNEL_PRIVATE)
+#ifdef KERNEL_PRIVATE
-extern task_t current_task(void);
+extern void *get_bsdtask_info(task_t);
+extern vm_map_t get_task_map(task_t);
-#endif /* MACH_KERNEL_TASK */
+#endif /* KERNEL_PRIVATE */
-/* Take reference on task (make sure it doesn't go away) */
-extern void task_reference(task_t task);
+extern task_t kernel_task;
+
+extern void task_deallocate(
+ task_t task);
-/* Remove reference to task */
-extern void task_deallocate(task_t task);
+__END_DECLS
#endif /* _KERN_TASK_H_ */
projects / apple / xnu.git / blobdiff