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--- libmalloc/libmalloc-140.1.1/include/malloc/malloc.h
+++ libmalloc/libmalloc-792.41.1/include/malloc/malloc.h
@@ -1,15 +1,15 @@
/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999-2023 Apple Computer, Inc. All rights reserved.
*
* @APPLE_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
* compliance with the License. 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,
@@ -17,159 +17,532 @@
* 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_LICENSE_HEADER_END@
*/
#ifndef _MALLOC_MALLOC_H_
#define _MALLOC_MALLOC_H_
-#include <stddef.h>
-#include <mach/mach_types.h>
-#include <sys/cdefs.h>
+#include <TargetConditionals.h>
+#include <malloc/_platform.h>
#include <Availability.h>
+#include <os/availability.h>
+
+#include <malloc/_ptrcheck.h>
+__ptrcheck_abi_assume_single()
+
+#if __has_feature(ptrauth_calls)
+#include <ptrauth.h>
+
+// Zone function pointer, type-diversified but not address-diversified (because
+// the zone can be copied). Process-independent because the zone structure may
+// be in the shared library cache.
+#define MALLOC_ZONE_FN_PTR(fn) __ptrauth(ptrauth_key_process_independent_code, \
+ 0, ptrauth_string_discriminator("malloc_zone_fn." #fn)) fn
+
+// Introspection function pointer, address- and type-diversified.
+// Process-independent because the malloc_introspection_t structure that contains
+// these pointers may be in the shared library cache.
+#define MALLOC_INTROSPECT_FN_PTR(fn) __ptrauth(ptrauth_key_process_independent_code, \
+ 1, ptrauth_string_discriminator("malloc_introspect_fn." #fn)) fn
+
+// Pointer to the introspection pointer table, type-diversified but not
+// address-diversified (because the zone can be copied).
+// Process-independent because the table pointer may be in the shared library cache.
+#define MALLOC_INTROSPECT_TBL_PTR(ptr) __ptrauth(ptrauth_key_process_independent_data,\
+ 0, ptrauth_string_discriminator("malloc_introspect_tbl")) ptr
+
+#endif // __has_feature(ptrauth_calls)
+
+#ifndef MALLOC_ZONE_FN_PTR
+#define MALLOC_ZONE_FN_PTR(fn) fn
+#define MALLOC_INTROSPECT_FN_PTR(fn) fn
+#define MALLOC_INTROSPECT_TBL_PTR(ptr) ptr
+#endif // MALLOC_ZONE_FN_PTR
__BEGIN_DECLS
+
+/********* Typed zone functions ************/
+
+#if defined(__has_attribute) && __has_attribute(swift_name)
+#define MALLOC_SWIFT_NAME(x) __attribute__((swift_name(#x)))
+#else
+#define MALLOC_SWIFT_NAME(x)
+#endif // defined(__has_attribute) && __has_attribute(swift_name)
+
+/*!
+ * @constant MALLOC_ZONE_MALLOC_DEFAULT_ALIGN
+ * Default alignment for malloc_type_zone_malloc_with_options
+ */
+#define MALLOC_ZONE_MALLOC_DEFAULT_ALIGN __SIZEOF_POINTER__
+
+/*!
+ * @enum malloc_zone_malloc_options_t
+ *
+ * @constant MALLOC_ZONE_MALLOC_OPTION_NONE
+ * Empty placeholder option.
+ *
+ * @constant MALLOC_ZONE_MALLOC_OPTION_CLEAR
+ * Zero out the allocated memory, similar to calloc().
+ *
+ */
+#if HEADER_MTE
+/*!
+ * @constant MALLOC_ZONE_MALLOC_OPTION_CANONICAL_TAG
+ * Under MTE, use a tag of zero (canonical) instead of a random value.
+ */
+#endif // HEADER_MTE
+typedef enum __enum_options : uint64_t {
+ MALLOC_ZONE_MALLOC_OPTION_NONE = 0u,
+ MALLOC_ZONE_MALLOC_OPTION_CLEAR MALLOC_SWIFT_NAME(clear) = 1u << 0,
+#if HEADER_MTE
+ MALLOC_ZONE_MALLOC_OPTION_CANONICAL_TAG MALLOC_SWIFT_NAME(canonicalTag) = 1u << 1,
+#endif // HEADER_MTE
+} malloc_zone_malloc_options_t;
+
+/*!
+ * @function malloc_type_zone_malloc_with_options
+ *
+ * Like the other functions declared in malloc/_malloc_type.h, this function
+ * is not intended to be called directly, but is rather the rewrite target for
+ * calls to malloc_zone_malloc_with_options when typed memory operations are
+ * enabled.
+ */
+#if defined(__LP64__)
+__API_AVAILABLE(macos(16.0), ios(19.0), tvos(19.0), watchos(12.0), bridgeos(10.0), visionos(3.0), driverkit(25.0))
+void * __sized_by_or_null(size) malloc_type_zone_malloc_with_options(malloc_zone_t *zone, size_t alignment, size_t size, malloc_type_id_t type_id, malloc_zone_malloc_options_t opts) __result_use_check __alloc_align(2) __alloc_size(3);
+#endif /* __LP64__ */
+
+#if defined(_MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING) && _MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING
+static void * __sized_by_or_null(size) __attribute__((always_inline)) malloc_type_zone_malloc_with_options_backdeploy(malloc_zone_t *zone, size_t alignment, size_t size, malloc_type_id_t type_id, malloc_zone_malloc_options_t opts) __result_use_check __alloc_align(2) __alloc_size(3);
+#endif /* defined(_MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING) && _MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING */
+
+// The remainder of these functions are declared in malloc/_malloc_type.h, and
+// the backdeployment variant definitions are at the bottom of this file.
+
/********* Type definitions ************/
+/*
+ * Only zone implementors should depend on the layout of this structure;
+ * Regular callers should use the access functions below
+ */
typedef struct _malloc_zone_t {
- /* Only zone implementors should depend on the layout of this structure;
- Regular callers should use the access functions below */
- void *reserved1; /* RESERVED FOR CFAllocator DO NOT USE */
- void *reserved2; /* RESERVED FOR CFAllocator DO NOT USE */
- size_t (*size)(struct _malloc_zone_t *zone, const void *ptr); /* returns the size of a block or 0 if not in this zone; must be fast, especially for negative answers */
- void *(*malloc)(struct _malloc_zone_t *zone, size_t size);
- void *(*calloc)(struct _malloc_zone_t *zone, size_t num_items, size_t size); /* same as malloc, but block returned is set to zero */
- void *(*valloc)(struct _malloc_zone_t *zone, size_t size); /* same as malloc, but block returned is set to zero and is guaranteed to be page aligned */
- void (*free)(struct _malloc_zone_t *zone, void *ptr);
- void *(*realloc)(struct _malloc_zone_t *zone, void *ptr, size_t size);
- void (*destroy)(struct _malloc_zone_t *zone); /* zone is destroyed and all memory reclaimed */
- const char *zone_name;
-
- /* Optional batch callbacks; these may be NULL */
- unsigned (*batch_malloc)(struct _malloc_zone_t *zone, size_t size, void **results, unsigned num_requested); /* given a size, returns pointers capable of holding that size; returns the number of pointers allocated (maybe 0 or less than num_requested) */
- void (*batch_free)(struct _malloc_zone_t *zone, void **to_be_freed, unsigned num_to_be_freed); /* frees all the pointers in to_be_freed; note that to_be_freed may be overwritten during the process */
-
- struct malloc_introspection_t *introspect;
- unsigned version;
-
- /* aligned memory allocation. The callback may be NULL. Present in version >= 5. */
- void *(*memalign)(struct _malloc_zone_t *zone, size_t alignment, size_t size);
-
- /* free a pointer known to be in zone and known to have the given size. The callback may be NULL. Present in version >= 6.*/
- void (*free_definite_size)(struct _malloc_zone_t *zone, void *ptr, size_t size);
-
- /* Empty out caches in the face of memory pressure. The callback may be NULL. Present in version >= 8. */
- size_t (*pressure_relief)(struct _malloc_zone_t *zone, size_t goal);
+ void *reserved1; /* RESERVED FOR CFAllocator DO NOT USE */
+ void *reserved2; /* RESERVED FOR CFAllocator DO NOT USE */
+
+ /*
+ * Returns the size of a block or 0 if not in this zone; must be fast,
+ * especially for negative answers.
+ */
+ size_t (* MALLOC_ZONE_FN_PTR(size))(struct _malloc_zone_t *zone,
+ const void * __unsafe_indexable ptr);
+
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(malloc))(
+ struct _malloc_zone_t *zone, size_t size);
+
+ /* Same as malloc, but block returned is set to zero */
+ void * __sized_by_or_null(num_items * size) (* MALLOC_ZONE_FN_PTR(calloc))(
+ struct _malloc_zone_t *zone, size_t num_items, size_t size);
+
+ /* Same as malloc, but block returned is guaranteed to be page-aligned */
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(valloc))(
+ struct _malloc_zone_t *zone, size_t size);
+
+ void (* MALLOC_ZONE_FN_PTR(free))(struct _malloc_zone_t *zone,
+ void * __unsafe_indexable ptr);
+
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(realloc))(
+ struct _malloc_zone_t *zone, void * __unsafe_indexable ptr,
+ size_t size);
+
+ /* Zone is destroyed and all memory reclaimed */
+ void (* MALLOC_ZONE_FN_PTR(destroy))(struct _malloc_zone_t *zone);
+
+ const char * __null_terminated zone_name;
+
+ /* Optional batch callbacks; these may be NULL */
+
+ /*
+ * Given a size, returns pointers capable of holding that size; returns the
+ * number of pointers allocated (maybe 0 or less than num_requested)
+ */
+ unsigned (* MALLOC_ZONE_FN_PTR(batch_malloc))(struct _malloc_zone_t *zone,
+ size_t size,
+ void * __unsafe_indexable * __counted_by(num_requested) results,
+ unsigned num_requested);
+
+ /*
+ * Frees all the pointers in to_be_freed; note that to_be_freed may be
+ * overwritten during the process
+ */
+ void (* MALLOC_ZONE_FN_PTR(batch_free))(struct _malloc_zone_t *zone,
+ void * __unsafe_indexable * __counted_by(num_to_be_freed) to_be_freed,
+ unsigned num_to_be_freed);
+
+ struct malloc_introspection_t * MALLOC_INTROSPECT_TBL_PTR(introspect);
+ unsigned version;
+
+ /* Aligned memory allocation. May be NULL. Present in version >= 5. */
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(memalign))(
+ struct _malloc_zone_t *zone, size_t alignment, size_t size);
+
+ /*
+ * Free a pointer known to be in zone and known to have the given size.
+ * May be NULL. Present in version >= 6.
+ */
+ void (* MALLOC_ZONE_FN_PTR(free_definite_size))(struct _malloc_zone_t *zone,
+ void * __sized_by(size) ptr, size_t size);
+
+ /*
+ * Empty out caches in the face of memory pressure. May be NULL.
+ * Present in version >= 8.
+ */
+ size_t (* MALLOC_ZONE_FN_PTR(pressure_relief))(struct _malloc_zone_t *zone,
+ size_t goal);
+
+ /*
+ * Checks whether an address might belong to the zone. May be NULL. Present
+ * in version >= 10. False positives are allowed (e.g. the pointer was
+ * freed, or it's in zone space that has not yet been allocated. False
+ * negatives are not allowed.
+ */
+ boolean_t (* MALLOC_ZONE_FN_PTR(claimed_address))(
+ struct _malloc_zone_t *zone, void * __unsafe_indexable ptr);
+
+ /*
+ * For libmalloc-internal zone 0 implementations only: try to free ptr,
+ * promising to call find_zone_and_free if it turns out not to belong to us.
+ * May be present in version >= 13.
+ */
+ void (* MALLOC_ZONE_FN_PTR(try_free_default))(struct _malloc_zone_t *zone,
+ void * __unsafe_indexable ptr);
+
+ /*
+ * Memory allocation with an extensible binary flags option.
+ * Added in version >= 15.
+ */
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(malloc_with_options))(
+ struct _malloc_zone_t *zone, size_t align, size_t size,
+ uint64_t options);
+
+ /*
+ * Typed Memory Operations versions of zone functions. Present in
+ * version >= 16.
+ */
+
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(malloc_type_malloc))(
+ struct _malloc_zone_t *zone, size_t size, malloc_type_id_t type_id);
+
+ void * __sized_by_or_null(count * size) (* MALLOC_ZONE_FN_PTR(malloc_type_calloc))(
+ struct _malloc_zone_t *zone, size_t count, size_t size,
+ malloc_type_id_t type_id);
+
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(malloc_type_realloc))(
+ struct _malloc_zone_t *zone, void * __unsafe_indexable ptr,
+ size_t size, malloc_type_id_t type_id);
+
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(malloc_type_memalign))(
+ struct _malloc_zone_t *zone, size_t alignment, size_t size,
+ malloc_type_id_t type_id);
+
+ void * __sized_by_or_null(size) (* MALLOC_ZONE_FN_PTR(malloc_type_malloc_with_options))(
+ struct _malloc_zone_t *zone, size_t align, size_t size,
+ uint64_t options, malloc_type_id_t type_id);
} malloc_zone_t;
+/*!
+ * @enum malloc_type_callsite_flags_v0_t
+ *
+ * Information about where and how malloc was called
+ *
+ * @constant MALLOC_TYPE_CALLSITE_FLAGS_V0_FIXED_SIZE
+ * Set in malloc_type_summary_v0_t if the call to malloc was called with a fixed
+ * size. Note that, at present, this bit is set in all callsites where the
+ * compiler rewrites a call to malloc
+ *
+ * @constant MALLOC_TYPE_CALLSITE_FLAGS_V0_ARRAY
+ * Set in malloc_type_summary_v0_t if the type being allocated is an array, e.g.
+ * allocated via new[] or calloc(count, size)
+ */
+typedef enum {
+ MALLOC_TYPE_CALLSITE_FLAGS_V0_NONE = 0,
+ MALLOC_TYPE_CALLSITE_FLAGS_V0_FIXED_SIZE = 1 << 0,
+ MALLOC_TYPE_CALLSITE_FLAGS_V0_ARRAY = 1 << 1,
+} malloc_type_callsite_flags_v0_t;
+
+/*!
+ * @enum malloc_type_kind_v0_t
+ *
+ * @constant MALLOC_TYPE_KIND_V0_OTHER
+ * Default allocation type, used for most calls to malloc
+ *
+ * @constant MALLOC_TYPE_KIND_V0_OBJC
+ * Marks a type allocated by libobjc
+ *
+ * @constant MALLOC_TYPE_KIND_V0_SWIFT
+ * Marks a type allocated by the Swift runtime
+ *
+ * @constant MALLOC_TYPE_KIND_V0_CXX
+ * Marks a type allocated by the C++ runtime's operator new
+ */
+typedef enum {
+ MALLOC_TYPE_KIND_V0_OTHER = 0,
+ MALLOC_TYPE_KIND_V0_OBJC = 1,
+ MALLOC_TYPE_KIND_V0_SWIFT = 2,
+ MALLOC_TYPE_KIND_V0_CXX = 3
+} malloc_type_kind_v0_t;
+
+/*!
+ * @struct malloc_type_layout_semantics_v0_t
+ *
+ * @field contains_data_pointer
+ * True if the allocated type or any of its fields is a pointer
+ * to a data type (i.e. the pointee contains no pointers)
+ *
+ * @field contains_struct_pointer
+ * True if the allocated type or any of its fields is a pointer
+ * to a struct or union
+ *
+ * @field contains_immutable_pointer
+ * True if the allocated type or any of its fields is a const pointer
+ *
+ * @field contains_anonymous_pointer
+ * True if the allocated type or any of its fields is a pointer
+ * to something other than a struct or data type
+ *
+ * @field is_reference_counted
+ * True if the allocated type is reference counted
+ *
+ * @field contains_generic_data
+ * True if the allocated type or any of its fields are not pointers
+ */
+typedef struct {
+ bool contains_data_pointer : 1;
+ bool contains_struct_pointer : 1;
+ bool contains_immutable_pointer : 1;
+ bool contains_anonymous_pointer : 1;
+ bool is_reference_counted : 1;
+ uint16_t reserved_0 : 3;
+ bool contains_generic_data : 1;
+ uint16_t reserved_1 : 7;
+} malloc_type_layout_semantics_v0_t;
+
+/*!
+ * @struct malloc_type_summary_v0_t
+ *
+ * @field version
+ * Versioning field of the type summary. Set to 0 for the current verison. New
+ * fields can be added where the reserved fields currently are without
+ * incrementing the version, as long as they are non-breaking.
+ *
+ * @field callsite_flags
+ * Details from the callsite of malloc inferred by the compiler
+ *
+ * @field type_kind
+ * Details about the runtime making the allocation
+ *
+ * @field layout_semantics
+ * Details about what kinds of data are contained in the type being allocated
+ *
+ * @discussion
+ * The reserved fields should not be read from or written to, and may be
+ * used for additional fields and information in future versions
+ */
+typedef struct {
+ uint32_t version : 4;
+ uint32_t reserved_0 : 2;
+ malloc_type_callsite_flags_v0_t callsite_flags : 4;
+ malloc_type_kind_v0_t type_kind : 2;
+ uint32_t reserved_1 : 4;
+ malloc_type_layout_semantics_v0_t layout_semantics;
+} malloc_type_summary_v0_t;
+
+/*!
+ * @union malloc_type_descriptor_v0_t
+ *
+ * @field hash
+ * Hash of the type layout of the allocated type, or if type inference failed,
+ * the hash of the callsite's file, line and column. The hash allows the
+ * allocator to disambiguate between different types with the same summary, e.g.
+ * types that have the same fields in different orders.
+ *
+ * @field summary
+ * Details of the type being allocated
+ *
+ * @field type_id
+ * opaque type used for punning
+ *
+ * @discussion
+ * Use malloc_type_descriptor_v0_t to decode the opaque malloc_type_id_t with
+ * version == 0 into a malloc_type_summary_v0_t:
+ *
+ * <code>
+ * malloc_type_descriptor_v0_t desc = (malloc_type_descriptor_v0_t){ .type_id = id };
+ * </code>
+ *
+ * See LLVM documentation for more details
+ */
+typedef union {
+ struct {
+ uint32_t hash;
+ malloc_type_summary_v0_t summary;
+ };
+ malloc_type_id_t type_id;
+} malloc_type_descriptor_v0_t;
+
/********* Creation and destruction ************/
extern malloc_zone_t *malloc_default_zone(void);
- /* The initial zone */
-
+ /* The initial zone */
+
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
extern malloc_zone_t *malloc_create_zone(vm_size_t start_size, unsigned flags);
- /* Creates a new zone with default behavior and registers it */
+ /* Creates a new zone with default behavior and registers it */
extern void malloc_destroy_zone(malloc_zone_t *zone);
- /* Destroys zone and everything it allocated */
+ /* Destroys zone and everything it allocated */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
/********* Block creation and manipulation ************/
-extern void *malloc_zone_malloc(malloc_zone_t *zone, size_t size);
- /* Allocates a new pointer of size size; zone must be non-NULL */
-
-extern void *malloc_zone_calloc(malloc_zone_t *zone, size_t num_items, size_t size);
- /* Allocates a new pointer of size num_items * size; block is cleared; zone must be non-NULL */
-
-extern void *malloc_zone_valloc(malloc_zone_t *zone, size_t size);
- /* Allocates a new pointer of size size; zone must be non-NULL; Pointer is guaranteed to be page-aligned and block is cleared */
-
-extern void malloc_zone_free(malloc_zone_t *zone, void *ptr);
- /* Frees pointer in zone; zone must be non-NULL */
-
-extern void *malloc_zone_realloc(malloc_zone_t *zone, void *ptr, size_t size);
- /* Enlarges block if necessary; zone must be non-NULL */
-
-extern malloc_zone_t *malloc_zone_from_ptr(const void *ptr);
- /* Returns the zone for a pointer, or NULL if not in any zone.
- The ptr must have been returned from a malloc or realloc call. */
-
-extern size_t malloc_size(const void *ptr);
- /* Returns size of given ptr */
+extern void * __sized_by_or_null(size) malloc_zone_malloc(malloc_zone_t *zone, size_t size) __alloc_size(2) _MALLOC_TYPED(malloc_type_zone_malloc, 2);
+ /* Allocates a new pointer of size size; zone must be non-NULL */
+
+/*!
+ * @function malloc_zone_malloc_with_options
+ *
+ * @param zone
+ * The malloc zone that should be used to used to serve the allocation. This
+ * parameter may be NULL, in which case the default zone will be used.
+ *
+ * @param align
+ * The minimum alignment of the requested allocation. This non-zero parameter
+ * must be MALLOC_ZONE_MALLOC_DEFAULT_ALIGN to request default alignment, or a
+ * power of 2 > sizeof(void *).
+ *
+ * @param size
+ * The size, in bytes, of the requested allocation, which must be an integral
+ * multiple of align. This requirement is relaxed slightly on OS versions
+ * strictly newer than 26.0, where a non-multiple size is permitted if and only
+ * if align is MALLOC_ZONE_MALLOC_DEFAULT_ALIGN. OS version 26.0 does not
+ * implement this exception.
+ *
+ * @param options
+ * A bitmask of options defining how the memory should be allocated. See the
+ * available bit values in the malloc_zone_malloc_options_t enum definition.
+ *
+ * @result
+ * A pointer to the newly allocated block of memory, or NULL if the allocation
+ * failed.
+ *
+ * @discussion
+ * This API does not use errno to signal information about the reason for its
+ * success or failure, and makes no guarantees about preserving or settings its
+ * value in any case.
+ */
+__API_AVAILABLE(macos(16.0), ios(19.0), tvos(19.0), watchos(12.0), bridgeos(10.0), visionos(3.0), driverkit(25.0))
+extern void * __sized_by_or_null(size) malloc_zone_malloc_with_options(malloc_zone_t *zone, size_t align, size_t size, malloc_zone_malloc_options_t opts) __alloc_align(2) __alloc_size(3) _MALLOC_TYPED(malloc_type_zone_malloc_with_options, 3);
+
+extern void * __sized_by_or_null(num_items * size) malloc_zone_calloc(malloc_zone_t *zone, size_t num_items, size_t size) __alloc_size(2,3) _MALLOC_TYPED(malloc_type_zone_calloc, 3);
+ /* Allocates a new pointer of size num_items * size; block is cleared; zone must be non-NULL */
+
+extern void * __sized_by_or_null(size) malloc_zone_valloc(malloc_zone_t *zone, size_t size) __alloc_size(2) _MALLOC_TYPED(malloc_type_zone_valloc, 2);
+ /* Allocates a new pointer of size size; zone must be non-NULL; Pointer is guaranteed to be page-aligned and block is cleared */
+
+extern void malloc_zone_free(malloc_zone_t *zone, void * __unsafe_indexable ptr);
+ /* Frees pointer in zone; zone must be non-NULL */
+
+extern void * __sized_by_or_null(size) malloc_zone_realloc(malloc_zone_t *zone, void * __unsafe_indexable ptr, size_t size) __alloc_size(3) _MALLOC_TYPED(malloc_type_zone_realloc, 3);
+ /* Enlarges block if necessary; zone must be non-NULL */
+
+extern malloc_zone_t *malloc_zone_from_ptr(const void * __unsafe_indexable ptr);
+ /* Returns the zone for a pointer, or NULL if not in any zone.
+ The ptr must have been returned from a malloc or realloc call. */
+
+extern size_t malloc_size(const void * __unsafe_indexable ptr);
+ /* Returns size of given ptr, including any padding inserted by the allocator */
extern size_t malloc_good_size(size_t size);
- /* Returns number of bytes greater than or equal to size that can be allocated without padding */
-
-extern void *malloc_zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0);
- /*
- * Allocates a new pointer of size size whose address is an exact multiple of alignment.
- * alignment must be a power of two and at least as large as sizeof(void *).
- * zone must be non-NULL.
- */
+ /* Returns number of bytes greater than or equal to size that can be allocated without padding */
+
+extern void * __sized_by_or_null(size) malloc_zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size) __alloc_align(2) __alloc_size(3) _MALLOC_TYPED(malloc_type_zone_memalign, 3) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0);
+ /*
+ * Allocates a new pointer of size size whose address is an exact multiple of alignment.
+ * alignment must be a power of two and at least as large as sizeof(void *).
+ * zone must be non-NULL.
+ */
/********* Batch methods ************/
-extern unsigned malloc_zone_batch_malloc(malloc_zone_t *zone, size_t size, void **results, unsigned num_requested);
- /* Allocates num blocks of the same size; Returns the number truly allocated (may be 0) */
-
-extern void malloc_zone_batch_free(malloc_zone_t *zone, void **to_be_freed, unsigned num);
- /* frees all the pointers in to_be_freed; note that to_be_freed may be overwritten during the process; This function will always free even if the zone has no batch callback */
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
+extern unsigned malloc_zone_batch_malloc(malloc_zone_t *zone, size_t size, void * __unsafe_indexable * __counted_by(num_requested) results, unsigned num_requested);
+ /* Allocates num blocks of the same size; Returns the number truly allocated (may be 0) */
+
+extern void malloc_zone_batch_free(malloc_zone_t *zone, void * __unsafe_indexable * __counted_by(num) to_be_freed, unsigned num);
+ /* frees all the pointers in to_be_freed; note that to_be_freed may be overwritten during the process; This function will always free even if the zone has no batch callback */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
/********* Functions for libcache ************/
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
extern malloc_zone_t *malloc_default_purgeable_zone(void) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0);
- /* Returns a pointer to the default purgeable_zone. */
-
-extern void malloc_make_purgeable(void *ptr) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0);
- /* Make an allocation from the purgeable zone purgeable if possible. */
-
-extern int malloc_make_nonpurgeable(void *ptr) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0);
- /* Makes an allocation from the purgeable zone nonpurgeable.
- * Returns zero if the contents were not purged since the last
- * call to malloc_make_purgeable, else returns non-zero. */
+ /* Returns a pointer to the default purgeable_zone. */
+
+extern void malloc_make_purgeable(void * __unsafe_indexable ptr) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0);
+ /* Make an allocation from the purgeable zone purgeable if possible. */
+
+extern int malloc_make_nonpurgeable(void * __unsafe_indexable ptr) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0);
+ /* Makes an allocation from the purgeable zone nonpurgeable.
+ * Returns zero if the contents were not purged since the last
+ * call to malloc_make_purgeable, else returns non-zero. */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
/********* Functions for zone implementors ************/
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
extern void malloc_zone_register(malloc_zone_t *zone);
- /* Registers a custom malloc zone; Should typically be called after a
- * malloc_zone_t has been filled in with custom methods by a client. See
- * malloc_create_zone for creating additional malloc zones with the
- * default allocation and free behavior. */
+ /* Registers a custom malloc zone; Should typically be called after a
+ * malloc_zone_t has been filled in with custom methods by a client. See
+ * malloc_create_zone for creating additional malloc zones with the
+ * default allocation and free behavior. */
extern void malloc_zone_unregister(malloc_zone_t *zone);
- /* De-registers a zone
- Should typically be called before calling the zone destruction routine */
-
-extern void malloc_set_zone_name(malloc_zone_t *zone, const char *name);
- /* Sets the name of a zone */
+ /* De-registers a zone
+ Should typically be called before calling the zone destruction routine */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
+
+extern void malloc_set_zone_name(malloc_zone_t *zone, const char * __null_terminated name);
+ /* Sets the name of a zone */
extern const char *malloc_get_zone_name(malloc_zone_t *zone);
- /* Returns the name of a zone */
-
+ /* Returns the name of a zone */
+
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
size_t malloc_zone_pressure_relief(malloc_zone_t *zone, size_t goal) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
- /* malloc_zone_pressure_relief() advises the malloc subsystem that the process is under memory pressure and
- * that the subsystem should make its best effort towards releasing (i.e. munmap()-ing) "goal" bytes from "zone".
- * If "goal" is passed as zero, the malloc subsystem will attempt to achieve maximal pressure relief in "zone".
- * If "zone" is passed as NULL, all zones are examined for pressure relief opportunities.
- * malloc_zone_pressure_relief() returns the number of bytes released.
- */
+ /* malloc_zone_pressure_relief() advises the malloc subsystem that the process is under memory pressure and
+ * that the subsystem should make its best effort towards releasing (i.e. munmap()-ing) "goal" bytes from "zone".
+ * If "goal" is passed as zero, the malloc subsystem will attempt to achieve maximal pressure relief in "zone".
+ * If "zone" is passed as NULL, all zones are examined for pressure relief opportunities.
+ * malloc_zone_pressure_relief() returns the number of bytes released.
+ */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
typedef struct {
- vm_address_t address;
- vm_size_t size;
+ vm_address_t address;
+ vm_size_t size;
} vm_range_t;
typedef struct malloc_statistics_t {
- unsigned blocks_in_use;
- size_t size_in_use;
- size_t max_size_in_use; /* high water mark of touched memory */
- size_t size_allocated; /* reserved in memory */
+ unsigned blocks_in_use;
+ size_t size_in_use;
+ size_t max_size_in_use; /* high water mark of touched memory */
+ size_t size_allocated; /* reserved in memory */
} malloc_statistics_t;
-typedef kern_return_t memory_reader_t(task_t remote_task, vm_address_t remote_address, vm_size_t size, void **local_memory);
- /* given a task, "reads" the memory at the given address and size
-local_memory: set to a contiguous chunk of memory; validity of local_memory is assumed to be limited (until next call) */
+typedef kern_return_t memory_reader_t(task_t remote_task, vm_address_t remote_address, vm_size_t size, void * __sized_by(size) *local_memory);
+ /* given a task, "reads" the memory at the given address and size
+ local_memory: set to a contiguous chunk of memory; validity of local_memory is assumed to be limited (until next call) */
#define MALLOC_PTR_IN_USE_RANGE_TYPE 1 /* for allocated pointers */
#define MALLOC_PTR_REGION_RANGE_TYPE 2 /* for region containing pointers */
@@ -177,92 +550,220 @@
#define MALLOC_ZONE_SPECIFIC_FLAGS 0xff00 /* bits reserved for zone-specific purposes */
typedef void vm_range_recorder_t(task_t, void *, unsigned type, vm_range_t *, unsigned);
- /* given a task and context, "records" the specified addresses */
+/* given a task and context, "records" the specified addresses */
+
+/* Print function for the print_task() operation. */
+typedef void print_task_printer_t(const char * __null_terminated fmt, ...) __printflike(1,2);
typedef struct malloc_introspection_t {
- kern_return_t (*enumerator)(task_t task, void *, unsigned type_mask, vm_address_t zone_address, memory_reader_t reader, vm_range_recorder_t recorder); /* enumerates all the malloc pointers in use */
- size_t (*good_size)(malloc_zone_t *zone, size_t size);
- boolean_t (*check)(malloc_zone_t *zone); /* Consistency checker */
- void (*print)(malloc_zone_t *zone, boolean_t verbose); /* Prints zone */
- void (*log)(malloc_zone_t *zone, void *address); /* Enables logging of activity */
- void (*force_lock)(malloc_zone_t *zone); /* Forces locking zone */
- void (*force_unlock)(malloc_zone_t *zone); /* Forces unlocking zone */
- void (*statistics)(malloc_zone_t *zone, malloc_statistics_t *stats); /* Fills statistics */
- boolean_t (*zone_locked)(malloc_zone_t *zone); /* Are any zone locks held */
-
- /* Discharge checking. Present in version >= 7. */
- boolean_t (*enable_discharge_checking)(malloc_zone_t *zone);
- void (*disable_discharge_checking)(malloc_zone_t *zone);
- void (*discharge)(malloc_zone_t *zone, void *memory);
+ kern_return_t (* MALLOC_INTROSPECT_FN_PTR(enumerator))(task_t task, void *, unsigned type_mask, vm_address_t zone_address, memory_reader_t reader, vm_range_recorder_t recorder); /* enumerates all the malloc pointers in use */
+ size_t (* MALLOC_INTROSPECT_FN_PTR(good_size))(malloc_zone_t *zone, size_t size);
+ boolean_t (* MALLOC_INTROSPECT_FN_PTR(check))(malloc_zone_t *zone); /* Consistency checker */
+ void (* MALLOC_INTROSPECT_FN_PTR(print))(malloc_zone_t *zone, boolean_t verbose); /* Prints zone */
+ void (* MALLOC_INTROSPECT_FN_PTR(log))(malloc_zone_t *zone, void * __unsafe_indexable address); /* Enables logging of activity */
+ void (* MALLOC_INTROSPECT_FN_PTR(force_lock))(malloc_zone_t *zone); /* Forces locking zone */
+ void (* MALLOC_INTROSPECT_FN_PTR(force_unlock))(malloc_zone_t *zone); /* Forces unlocking zone */
+ void (* MALLOC_INTROSPECT_FN_PTR(statistics))(malloc_zone_t *zone, malloc_statistics_t *stats); /* Fills statistics */
+ boolean_t (* MALLOC_INTROSPECT_FN_PTR(zone_locked))(malloc_zone_t *zone); /* Are any zone locks held */
+
+ /* Discharge checking. Present in version >= 7. */
+ boolean_t (* MALLOC_INTROSPECT_FN_PTR(enable_discharge_checking))(malloc_zone_t *zone);
+ void (* MALLOC_INTROSPECT_FN_PTR(disable_discharge_checking))(malloc_zone_t *zone);
+ void (* MALLOC_INTROSPECT_FN_PTR(discharge))(malloc_zone_t *zone, void * __unsafe_indexable memory);
#ifdef __BLOCKS__
- void (*enumerate_discharged_pointers)(malloc_zone_t *zone, void (^report_discharged)(void *memory, void *info));
-#else
- void *enumerate_unavailable_without_blocks;
+ void (* MALLOC_INTROSPECT_FN_PTR(enumerate_discharged_pointers))(malloc_zone_t *zone, void (^report_discharged)(void *memory, void *info));
+ #else
+ void *enumerate_unavailable_without_blocks;
#endif /* __BLOCKS__ */
- void (*reinit_lock)(malloc_zone_t *zone); /* Reinitialize zone locks, called only from atfork_child handler. Present in version >= 9. */
+ void (* MALLOC_INTROSPECT_FN_PTR(reinit_lock))(malloc_zone_t *zone); /* Reinitialize zone locks, called only from atfork_child handler. Present in version >= 9. */
+ void (* MALLOC_INTROSPECT_FN_PTR(print_task))(task_t task, unsigned level, vm_address_t zone_address, memory_reader_t reader, print_task_printer_t printer); /* debug print for another process. Present in version >= 11. */
+ void (* MALLOC_INTROSPECT_FN_PTR(task_statistics))(task_t task, vm_address_t zone_address, memory_reader_t reader, malloc_statistics_t *stats); /* Present in version >= 12. */
+ unsigned zone_type; /* Identifies the zone type. 0 means unknown/undefined zone type. Present in version >= 14. */
} malloc_introspection_t;
-extern void malloc_printf(const char *format, ...);
- /* Convenience for logging errors and warnings;
- No allocation is performed during execution of this function;
- Only understands usual %p %d %s formats, and %y that expresses a number of bytes (5b,10KB,1MB...)
- */
+// The value of "level" when passed to print_task() that corresponds to
+// verbose passed to print()
+#define MALLOC_VERBOSE_PRINT_LEVEL 2
+
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
+extern void malloc_printf(const char * __null_terminated format, ...) __printflike(1,2);
+ /* Convenience for logging errors and warnings;
+ No allocation is performed during execution of this function;
+ Only understands usual %p %d %s formats, and %y that expresses a number of bytes (5b,10KB,1MB...)
+ */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
/********* Functions for performance tools ************/
-extern kern_return_t malloc_get_all_zones(task_t task, memory_reader_t reader, vm_address_t **addresses, unsigned *count);
- /* Fills addresses and count with the addresses of the zones in task;
- Note that the validity of the addresses returned correspond to the validity of the memory returned by reader */
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
+extern kern_return_t malloc_get_all_zones(task_t task, memory_reader_t reader, vm_address_t * __single * __counted_by(*count) addresses, unsigned *count);
+ /* Fills addresses and count with the addresses of the zones in task;
+ Note that the validity of the addresses returned correspond to the validity reader */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
/********* Debug helpers ************/
-extern void malloc_zone_print_ptr_info(void *ptr);
- /* print to stdout if this pointer is in the malloc heap, free status, and size */
+extern void malloc_zone_print_ptr_info(void * __unsafe_indexable ptr);
+ /* print to stdout if this pointer is in the malloc heap, free status, and size */
extern boolean_t malloc_zone_check(malloc_zone_t *zone);
- /* Checks zone is well formed; if !zone, checks all zones */
+ /* Checks zone is well formed; if !zone, checks all zones */
extern void malloc_zone_print(malloc_zone_t *zone, boolean_t verbose);
- /* Prints summary on zone; if !zone, prints all zones */
-
+ /* Prints summary on zone; if !zone, prints all zones */
+
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
extern void malloc_zone_statistics(malloc_zone_t *zone, malloc_statistics_t *stats);
- /* Fills statistics for zone; if !zone, sums up all zones */
-
-extern void malloc_zone_log(malloc_zone_t *zone, void *address);
- /* Controls logging of all activity; if !zone, for all zones;
- If address==0 nothing is logged;
- If address==-1 all activity is logged;
- Else only the activity regarding address is logged */
+ /* Fills statistics for zone; if !zone, sums up all zones */
+
+extern void malloc_zone_log(malloc_zone_t *zone, void * __unsafe_indexable address);
+ /* Controls logging of all activity; if !zone, for all zones;
+ If address==0 nothing is logged;
+ If address==-1 all activity is logged;
+ Else only the activity regarding address is logged */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
struct mstats {
- size_t bytes_total;
- size_t chunks_used;
- size_t bytes_used;
- size_t chunks_free;
- size_t bytes_free;
+ size_t bytes_total;
+ size_t chunks_used;
+ size_t bytes_used;
+ size_t chunks_free;
+ size_t bytes_free;
};
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
extern struct mstats mstats(void);
extern boolean_t malloc_zone_enable_discharge_checking(malloc_zone_t *zone) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
-/* Increment the discharge checking enabled counter for a zone. Returns true if the zone supports checking, false if it does not. */
+ /* Increment the discharge checking enabled counter for a zone. Returns true if the zone supports checking, false if it does not. */
extern void malloc_zone_disable_discharge_checking(malloc_zone_t *zone) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
/* Decrement the discharge checking enabled counter for a zone. */
-extern void malloc_zone_discharge(malloc_zone_t *zone, void *memory) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
-/* Register memory that the programmer expects to be freed soon.
- zone may be NULL in which case the zone is determined using malloc_zone_from_ptr().
- If discharge checking is off for the zone this function is a no-op. */
-
+extern void malloc_zone_discharge(malloc_zone_t *zone, void * __unsafe_indexable memory) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
+ /* Register memory that the programmer expects to be freed soon.
+ zone may be NULL in which case the zone is determined using malloc_zone_from_ptr().
+ If discharge checking is off for the zone this function is a no-op. */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
+
+#if !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
#ifdef __BLOCKS__
extern void malloc_zone_enumerate_discharged_pointers(malloc_zone_t *zone, void (^report_discharged)(void *memory, void *info)) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
-/* Calls report_discharged for each block that was registered using malloc_zone_discharge() but has not yet been freed.
- info is used to provide zone defined information about the memory block.
- If zone is NULL then the enumeration covers all zones. */
+ /* Calls report_discharged for each block that was registered using malloc_zone_discharge() but has not yet been freed.
+ info is used to provide zone defined information about the memory block.
+ If zone is NULL then the enumeration covers all zones. */
#else
extern void malloc_zone_enumerate_discharged_pointers(malloc_zone_t *zone, void *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
#endif /* __BLOCKS__ */
+#endif // !TARGET_OS_EXCLAVECORE && !TARGET_OS_EXCLAVEKIT
+
+/********* Zone version summary ************/
+// Version 0, but optional:
+// malloc_zone_t::batch_malloc
+// malloc_zone_t::batch_free
+// Version 5:
+// malloc_zone_t::memalign
+// Version 6:
+// malloc_zone_t::free_definite_size
+// Version 7:
+// malloc_introspection_t::enable_discharge_checking
+// malloc_introspection_t::disable_discharge_checking
+// malloc_introspection_t::discharge
+// Version 8:
+// malloc_zone_t::pressure_relief
+// Version 9:
+// malloc_introspection_t::reinit_lock
+// Version 10:
+// malloc_zone_t::claimed_address
+// Version 11:
+// malloc_introspection_t::print_task
+// Version 12:
+// malloc_introspection_t::task_statistics
+// Version 13:
+// - malloc_zone_t::malloc and malloc_zone_t::calloc assume responsibility for
+// setting errno to ENOMEM on failure
+// - malloc_zone_t::try_free_default (libmalloc only, NULL otherwise)
+// Version 14:
+// malloc_introspection_t::zone_type (mandatory, should be 0)
+// Version 15:
+// malloc_zone_t::malloc_with_options (optional)
+// Version 16:
+// malloc_zone_t::malloc_type_malloc (mandatory)
+// malloc_zone_t::malloc_type_calloc (mandatory)
+// malloc_zone_t::malloc_type_realloc (mandatory)
+// malloc_zone_t::malloc_type_memalign (mandatory)
+// malloc_zone_t::malloc_type_malloc_with_options (optional)
+
+// Zone functions are optional unless specified otherwise above. Calling a zone
+// function requires two checks:
+// * Check zone version to ensure zone struct is large enough to include the member.
+// * Check that the function pointer is not null.
+
+#if defined(_MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING) && _MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING
+static void * __sized_by_or_null(size) __attribute__((always_inline)) malloc_type_zone_malloc_backdeploy(malloc_zone_t *zone, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(2) {
+ __attribute__((weak_import)) void * __sized_by_or_null(size) malloc_type_zone_malloc(malloc_zone_t *zone, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(2);
+ __auto_type func = malloc_zone_malloc;
+ if (malloc_type_zone_malloc) {
+ return malloc_type_zone_malloc(zone, size, type_id);
+ }
+ return func(zone, size);
+}
+
+static void * __sized_by_or_null(size) __attribute__((always_inline)) malloc_type_zone_malloc_with_options_backdeploy(malloc_zone_t *zone, size_t alignment, size_t size, malloc_type_id_t type_id, malloc_zone_malloc_options_t opts) __result_use_check __alloc_align(2) __alloc_size(3) {
+ __attribute__((weak_import)) void * __sized_by_or_null(size) malloc_type_zone_malloc_with_options(malloc_zone_t *zone, size_t alignment, size_t size, malloc_type_id_t type_id, malloc_zone_malloc_options_t opts) __result_use_check __alloc_align(2) __alloc_size(3);
+ __auto_type func = malloc_zone_malloc_with_options;
+ if (malloc_type_zone_malloc_with_options) {
+ return malloc_type_zone_malloc_with_options(zone, alignment, size, type_id, opts);
+ }
+ return func(zone, alignment, size, opts);
+}
+
+static void * __sized_by_or_null(count * size) __attribute__((always_inline)) malloc_type_zone_calloc_backdeploy(malloc_zone_t *zone, size_t count, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(2,3) {
+ __attribute__((weak_import)) void * __sized_by_or_null(count * size) malloc_type_zone_calloc(malloc_zone_t *zone, size_t count, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(2,3);
+ __auto_type func = malloc_zone_calloc;
+ if (malloc_type_zone_calloc) {
+ return malloc_type_zone_calloc(zone, count, size, type_id);
+ }
+ return func(zone, count, size);
+}
+
+static void __attribute__((always_inline)) malloc_type_zone_free_backdeploy(malloc_zone_t *zone, void * __unsafe_indexable ptr, malloc_type_id_t type_id) {
+ __attribute__((weak_import)) void malloc_type_zone_free(malloc_zone_t *zone, void * __unsafe_indexable ptr, malloc_type_id_t type_id);
+ __auto_type func = malloc_zone_free;
+ if (malloc_type_zone_free) {
+ malloc_type_zone_free(zone, ptr, type_id);
+ } else {
+ func(zone, ptr);
+ }
+}
+
+static void * __sized_by_or_null(size) __attribute__((always_inline)) malloc_type_zone_realloc_backdeploy(malloc_zone_t *zone, void * __unsafe_indexable ptr, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(3) {
+ __auto_type func = malloc_zone_realloc;
+ __attribute__((weak_import)) void * __sized_by_or_null(size) malloc_type_zone_realloc(malloc_zone_t *zone, void * __unsafe_indexable ptr, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(3);
+ if (malloc_type_zone_realloc) {
+ return malloc_type_zone_realloc(zone, ptr, size, type_id);
+ }
+ return func(zone, ptr, size);
+}
+
+static void *__sized_by_or_null(size) __attribute__((always_inline)) malloc_type_zone_valloc_backdeploy(malloc_zone_t *zone, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(2) {
+ __attribute__((weak_import)) void *__sized_by_or_null(size) malloc_type_zone_valloc(malloc_zone_t *zone, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_size(2);
+ __auto_type func = malloc_zone_valloc;
+ if (malloc_type_zone_valloc) {
+ return malloc_type_zone_valloc(zone, size, type_id);
+ }
+ return func(zone, size);
+}
+
+static void *__sized_by_or_null(size) __attribute__((always_inline)) malloc_type_zone_memalign_backdeploy(malloc_zone_t *zone, size_t alignment, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_align(2) __alloc_size(3) {
+ __attribute__((weak_import)) void *__sized_by_or_null(size) malloc_type_zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size, malloc_type_id_t type_id) __result_use_check __alloc_align(2) __alloc_size(3);
+ __auto_type func = malloc_zone_memalign;
+ if (malloc_type_zone_memalign) {
+ return malloc_type_zone_memalign(zone, alignment, size, type_id);
+ }
+ return func(zone, alignment, size);
+}
+#endif // defined(_MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING) && _MALLOC_TYPE_MALLOC_IS_BACKDEPLOYING
__END_DECLS