/*
- * Copyright (c) 2012-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2012-2019 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* 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
* 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.
- *
+ *
* 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,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <stdint.h>
#include <mach/mach_types.h>
#include <atm/atm_types.h>
+#include <os/refcnt.h>
-#ifdef MACH_KERNEL_PRIVATE
+#ifdef MACH_KERNEL_PRIVATE
#include <kern/thread.h>
#include <kern/locks.h>
typedef mach_voucher_attr_value_handle_t atm_voucher_id_t;
struct atm_task_descriptor {
- decl_lck_mtx_data(,lock) /* lock to protect reference count */
- mach_port_t trace_buffer; /* named memory entry registered by user */
- uint64_t trace_buffer_size; /* size of the trace_buffer registered */
- uint64_t mailbox_array_size; /* Mailbox array size in bytes. */
- void * mailbox_kernel_addr; /* Kernel address where the mailbox is mapped. */
- uint32_t reference_count:31,
- flags:1;
+ decl_lck_mtx_data(, lock); /* lock to protect reference count */
+ mach_port_t trace_buffer; /* named memory entry registered by user */
+ uint64_t trace_buffer_size; /* size of the trace_buffer registered */
+ os_refcnt_t reference_count;
+ uint8_t flags;
#if DEVELOPMENT || DEBUG
- task_t task; /* task pointer for debugging purposes */
- queue_chain_t descriptor_elt; /* global chain of all descriptors */
+ task_t task; /* task pointer for debugging purposes */
+ queue_chain_t descriptor_elt; /* global chain of all descriptors */
#endif
};
#define ATM_TASK_DESCRIPTOR_NULL NULL
struct atm_value {
- aid_t aid; /* activity id */
- queue_head_t listeners; /* List of listeners who register for this activity */
- decl_lck_mtx_data( ,listener_lock) /* Lock to protect listener list */
- queue_chain_t vid_hash_elt; /* Next hash element in the global hash table */
+ aid_t aid; /* activity id */
+ queue_head_t listeners; /* List of listeners who register for this activity */
+ decl_lck_mtx_data(, listener_lock); /* Lock to protect listener list */
+ queue_chain_t vid_hash_elt; /* Next hash element in the global hash table */
#if DEVELOPMENT || DEBUG
- queue_chain_t value_elt; /* global chain of all values */
+ queue_chain_t value_elt; /* global chain of all values */
#endif
- uint32_t sync; /* Made ref count given to voucher sub system. */
- uint32_t listener_count; /* Number of Listerners listening on the value. */
- int32_t reference_count; /* use count on the atm value, 1 taken by the global hash table */
+ uint32_t sync; /* Made ref count given to voucher sub system. */
+
+ uint32_t listener_count;
+ os_refcnt_t reference_count; /* use count on the atm value, 1 taken by the global hash table */
};
+#define atm_listener_count_incr_internal(elem) \
+ (os_atomic_inc(&(elem)->listener_count, relaxed))
+
+#define atm_listener_count_decr_internal(elem) \
+ (os_atomic_dec(&(elem)->listener_count, relaxed))
+
+#define atm_sync_reference_internal(elem) \
+ (os_atomic_inc(&(elem)->sync, relaxed))
+
typedef struct atm_value *atm_value_t;
#define ATM_VALUE_NULL NULL
struct atm_link_object {
atm_task_descriptor_t descriptor;
- void * mailbox; /* Offset in the mailbox registered by the user for an activity. */
- uint32_t reference_count; /* Refernece count for link object */
- uint8_t flags; /* Flags used mark for deletion from the listener list */
- queue_chain_t listeners_element; /* Head is atm_value->listeners. */
+ queue_chain_t listeners_element; /* Head is atm_value->listeners. */
+ atm_guard_t guard; /* Guard registered by the user for an activity. */
+ os_refcnt_t reference_count;
};
typedef struct atm_link_object *atm_link_object_t;
-#define atm_link_object_reference_internal(elem) \
- (hw_atomic_add(&(elem)->reference_count, 1))
-
-#define atm_link_object_release_internal(elem) \
- (hw_atomic_sub(&(elem)->reference_count, 1))
-
struct atm_value_hash {
- queue_head_t hash_list;
- decl_lck_mtx_data(, hash_list_lock) /* lock to protect bucket list. */
+ queue_head_t hash_list;
+ decl_lck_mtx_data(, hash_list_lock); /* lock to protect bucket list. */
};
typedef struct atm_value_hash *atm_value_hash_t;
void atm_init(void);
void atm_task_descriptor_destroy(atm_task_descriptor_t task_descriptor);
-kern_return_t atm_register_trace_memory(task_t task, uint64_t trace_buffer_address, uint64_t buffer_size, uint64_t mailbox_array_size);
+kern_return_t atm_register_trace_memory(task_t task, uint64_t trace_buffer_address, uint64_t buffer_size);
kern_return_t atm_send_proc_inspect_notification(task_t task, int32_t traced_pid, uint64_t traced_uniqueid);
#endif /* MACH_KERNEL_PRIVATE */
+kern_return_t atm_set_diagnostic_config(uint32_t);
+uint32_t atm_get_diagnostic_config(void);
+
#endif /* _ATM_ATM_INTERNAL_H_ */
projects / apple / xnu.git / blobdiff