* Copyright (c) 2000-2005 Apple Computer, 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@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
- *
+ *
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
+ *
* Carnegie Mellon requests users of this software to return to
- *
+ *
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
- *
+ *
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
*/
-#ifndef _MACH_DEBUG_ZONE_INFO_H_
+#ifndef _MACH_DEBUG_ZONE_INFO_H_
#define _MACH_DEBUG_ZONE_INFO_H_
#include <mach/boolean.h>
* mach_zone_info() inteface and types below.
*/
-#define ZONE_NAME_MAX_LEN 80
+#define ZONE_NAME_MAX_LEN 80
typedef struct zone_name {
- char zn_name[ZONE_NAME_MAX_LEN];
+ char zn_name[ZONE_NAME_MAX_LEN];
} zone_name_t;
typedef zone_name_t *zone_name_array_t;
typedef struct zone_info {
- integer_t zi_count; /* Number of elements used now */
- vm_size_t zi_cur_size; /* current memory utilization */
- vm_size_t zi_max_size; /* how large can this zone grow */
- vm_size_t zi_elem_size; /* size of an element */
- vm_size_t zi_alloc_size; /* size used for more memory */
- integer_t zi_pageable; /* zone pageable? */
- integer_t zi_sleepable; /* sleep if empty? */
- integer_t zi_exhaustible; /* merely return if empty? */
- integer_t zi_collectable; /* garbage collect elements? */
+ integer_t zi_count; /* Number of elements used now */
+ vm_size_t zi_cur_size; /* current memory utilization */
+ vm_size_t zi_max_size; /* how large can this zone grow */
+ vm_size_t zi_elem_size; /* size of an element */
+ vm_size_t zi_alloc_size; /* size used for more memory */
+ integer_t zi_pageable; /* zone pageable? */
+ integer_t zi_sleepable; /* sleep if empty? */
+ integer_t zi_exhaustible; /* merely return if empty? */
+ integer_t zi_collectable; /* garbage collect elements? */
} zone_info_t;
typedef zone_info_t *zone_info_array_t;
* in mach_debug_types.defs when adding/removing fields.
*/
-#define MACH_ZONE_NAME_MAX_LEN 80
+#define MACH_ZONE_NAME_MAX_LEN 80
typedef struct mach_zone_name {
- char mzn_name[ZONE_NAME_MAX_LEN];
+ char mzn_name[ZONE_NAME_MAX_LEN];
} mach_zone_name_t;
typedef mach_zone_name_t *mach_zone_name_array_t;
typedef struct mach_zone_info_data {
- uint64_t mzi_count; /* count of elements in use */
- uint64_t mzi_cur_size; /* current memory utilization */
- uint64_t mzi_max_size; /* how large can this zone grow */
- uint64_t mzi_elem_size; /* size of an element */
- uint64_t mzi_alloc_size; /* size used for more memory */
- uint64_t mzi_sum_size; /* sum of all allocs (life of zone) */
- uint64_t mzi_exhaustible; /* merely return if empty? */
- uint64_t mzi_collectable; /* garbage collect elements? and how much? */
+ uint64_t mzi_count; /* count of elements in use */
+ uint64_t mzi_cur_size; /* current memory utilization */
+ uint64_t mzi_max_size; /* how large can this zone grow */
+ uint64_t mzi_elem_size; /* size of an element */
+ uint64_t mzi_alloc_size; /* size used for more memory */
+ uint64_t mzi_sum_size; /* sum of all allocs (life of zone) */
+ uint64_t mzi_exhaustible; /* merely return if empty? */
+ uint64_t mzi_collectable; /* garbage collect elements? and how much? */
} mach_zone_info_t;
typedef mach_zone_info_t *mach_zone_info_array_t;
* is collectable by zone_gc(). The higher bits contain the size in bytes
* that can be collected.
*/
-#define GET_MZI_COLLECTABLE_BYTES(val) ((val) >> 1)
-#define GET_MZI_COLLECTABLE_FLAG(val) ((val) & 1)
+#define GET_MZI_COLLECTABLE_BYTES(val) ((val) >> 1)
+#define GET_MZI_COLLECTABLE_FLAG(val) ((val) & 1)
-#define SET_MZI_COLLECTABLE_BYTES(val, size) \
+#define SET_MZI_COLLECTABLE_BYTES(val, size) \
(val) = ((val) & 1) | ((size) << 1)
-#define SET_MZI_COLLECTABLE_FLAG(val, flag) \
+#define SET_MZI_COLLECTABLE_FLAG(val, flag) \
(val) = (flag) ? ((val) | 1) : (val)
typedef struct task_zone_info_data {
- uint64_t tzi_count; /* count of elements in use */
- uint64_t tzi_cur_size; /* current memory utilization */
- uint64_t tzi_max_size; /* how large can this zone grow */
- uint64_t tzi_elem_size; /* size of an element */
- uint64_t tzi_alloc_size; /* size used for more memory */
- uint64_t tzi_sum_size; /* sum of all allocs (life of zone) */
- uint64_t tzi_exhaustible; /* merely return if empty? */
- uint64_t tzi_collectable; /* garbage collect elements? */
- uint64_t tzi_caller_acct; /* charged to caller (or kernel) */
- uint64_t tzi_task_alloc; /* sum of all allocs by this task */
- uint64_t tzi_task_free; /* sum of all frees by this task */
+ uint64_t tzi_count; /* count of elements in use */
+ uint64_t tzi_cur_size; /* current memory utilization */
+ uint64_t tzi_max_size; /* how large can this zone grow */
+ uint64_t tzi_elem_size; /* size of an element */
+ uint64_t tzi_alloc_size; /* size used for more memory */
+ uint64_t tzi_sum_size; /* sum of all allocs (life of zone) */
+ uint64_t tzi_exhaustible; /* merely return if empty? */
+ uint64_t tzi_collectable; /* garbage collect elements? */
+ uint64_t tzi_caller_acct; /* charged to caller (or kernel) */
+ uint64_t tzi_task_alloc; /* sum of all allocs by this task */
+ uint64_t tzi_task_free; /* sum of all frees by this task */
} task_zone_info_t;
typedef task_zone_info_t *task_zone_info_array_t;
-#define MACH_MEMORY_INFO_NAME_MAX_LEN 80
+#define MACH_MEMORY_INFO_NAME_MAX_LEN 80
typedef struct mach_memory_info {
uint64_t flags;
typedef mach_memory_info_t *mach_memory_info_array_t;
-#endif /* _MACH_DEBUG_ZONE_INFO_H_ */
+/*
+ * MAX_ZTRACE_DEPTH configures how deep of a stack trace is taken on each zalloc in the zone of interest. 15
+ * levels is usually enough to get past all the layers of code in kalloc and IOKit and see who the actual
+ * caller is up above these lower levels.
+ *
+ * This is used both for the zone leak detector and the zone corruption log. Make sure this isn't greater than
+ * BTLOG_MAX_DEPTH defined in btlog.h. Also make sure to update the definition of zone_btrecord_t in
+ * mach_debug_types.defs if this changes.
+ */
+
+#define MAX_ZTRACE_DEPTH 15
+
+/*
+ * Opcodes for the btlog operation field:
+ */
+
+#define ZOP_ALLOC 1
+#define ZOP_FREE 0
+
+/*
+ * Structure used to copy out btlog records to userspace, via the MIG call
+ * mach_zone_get_btlog_records().
+ */
+typedef struct zone_btrecord {
+ uint32_t ref_count; /* no. of active references on the record */
+ uint32_t operation_type; /* operation type (alloc/free) */
+ uint64_t bt[MAX_ZTRACE_DEPTH]; /* backtrace */
+} zone_btrecord_t;
+
+typedef zone_btrecord_t *zone_btrecord_array_t;
+
+#endif /* _MACH_DEBUG_ZONE_INFO_H_ */
projects / apple / xnu.git / blobdiff