X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/a39ff7e25e19b3a8c3020042a3872ca9ec9659f1..2a1bd2d3eef5c7a7bb14f4bb9fdbca9a96ee4752:/osfmk/mach_debug/zone_info.h diff --git a/osfmk/mach_debug/zone_info.h b/osfmk/mach_debug/zone_info.h index 81bd7badf..1022eca68 100644 --- a/osfmk/mach_debug/zone_info.h +++ b/osfmk/mach_debug/zone_info.h @@ -2,7 +2,7 @@ * 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 @@ -11,10 +11,10 @@ * 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, @@ -22,41 +22,41 @@ * 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 @@ -68,25 +68,25 @@ * 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; @@ -97,23 +97,23 @@ 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; @@ -123,31 +123,31 @@ 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; @@ -167,4 +167,35 @@ typedef struct mach_memory_info { 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_ */