diff --git a/lib/libc/include/x86_64-macos-gnu/malloc/malloc.h b/lib/libc/include/x86_64-macos-gnu/malloc/malloc.h new file mode 100644 index 000000000..40e7469da --- /dev/null +++ b/lib/libc/include/x86_64-macos-gnu/malloc/malloc.h @@ -0,0 +1,314 @@ +/* + * Copyright (c) 1999 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, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * 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 +#include +#include +#include + +#if __has_feature(ptrauth_calls) +#include + +// 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, \ + FALSE, 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, \ + TRUE, 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,\ + FALSE, 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 +/********* Type definitions ************/ + +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 (* MALLOC_ZONE_FN_PTR(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_ZONE_FN_PTR(malloc))(struct _malloc_zone_t *zone, size_t size); + void *(* MALLOC_ZONE_FN_PTR(calloc))(struct _malloc_zone_t *zone, size_t num_items, size_t size); /* same as malloc, but block returned is set to zero */ + void *(* MALLOC_ZONE_FN_PTR(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 (* MALLOC_ZONE_FN_PTR(free))(struct _malloc_zone_t *zone, void *ptr); + void *(* MALLOC_ZONE_FN_PTR(realloc))(struct _malloc_zone_t *zone, void *ptr, size_t size); + void (* MALLOC_ZONE_FN_PTR(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 (* MALLOC_ZONE_FN_PTR(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 (* MALLOC_ZONE_FN_PTR(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 * MALLOC_INTROSPECT_TBL_PTR(introspect); + unsigned version; + + /* aligned memory allocation. The callback may be NULL. Present in version >= 5. */ + void *(* 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. The callback may be NULL. Present in version >= 6.*/ + void (* MALLOC_ZONE_FN_PTR(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 (* 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 *ptr); +} malloc_zone_t; + +/********* Creation and destruction ************/ + +extern malloc_zone_t *malloc_default_zone(void); + /* The initial zone */ + +extern malloc_zone_t *malloc_create_zone(vm_size_t start_size, unsigned flags); + /* 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 */ + +/********* Block creation and manipulation ************/ + +extern void *malloc_zone_malloc(malloc_zone_t *zone, size_t size) __alloc_size(2); + /* 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) __alloc_size(2,3); + /* 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) __alloc_size(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 *ptr); + /* Frees pointer in zone; zone must be non-NULL */ + +extern void *malloc_zone_realloc(malloc_zone_t *zone, void *ptr, size_t size) __alloc_size(3); + /* 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 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) __alloc_size(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 */ + +/********* Functions for libcache ************/ + +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. */ + +/********* Functions for zone implementors ************/ + +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. */ + +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 */ + +extern const char *malloc_get_zone_name(malloc_zone_t *zone); + /* Returns the name of a zone */ + +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. + */ + +typedef struct { + 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 */ +} 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) */ + +#define MALLOC_PTR_IN_USE_RANGE_TYPE 1 /* for allocated pointers */ +#define MALLOC_PTR_REGION_RANGE_TYPE 2 /* for region containing pointers */ +#define MALLOC_ADMIN_REGION_RANGE_TYPE 4 /* for region used internally */ +#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 */ + +/* Print function for the print_task() operation. */ +typedef void print_task_printer_t(const char *fmt, ...); + +typedef struct malloc_introspection_t { + 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 *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 *memory); +#ifdef __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 (* 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 */ +} malloc_introspection_t; + +// The value of "level" when passed to print_task() that corresponds to +// verbose passed to print() +#define MALLOC_VERBOSE_PRINT_LEVEL 2 + +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...) + */ + +/********* 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 */ + +/********* 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 boolean_t malloc_zone_check(malloc_zone_t *zone); + /* 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 */ + +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 */ + +struct mstats { + size_t bytes_total; + size_t chunks_used; + size_t bytes_used; + size_t chunks_free; + size_t bytes_free; +}; + +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. */ + +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. */ + +#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. */ +#else +extern void malloc_zone_enumerate_discharged_pointers(malloc_zone_t *zone, void *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); +#endif /* __BLOCKS__ */ + +__END_DECLS + +#endif /* _MALLOC_MALLOC_H_ */ diff --git a/lib/libc/include/x86_64-macos-gnu/sys/file.h b/lib/libc/include/x86_64-macos-gnu/sys/file.h new file mode 100644 index 000000000..b24ec6a29 --- /dev/null +++ b/lib/libc/include/x86_64-macos-gnu/sys/file.h @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2000-2008 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 + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * 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, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * 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@ + */ +/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */ +/* + * Copyright (c) 1982, 1986, 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)file.h 8.3 (Berkeley) 1/9/95 + */ + +#ifndef _SYS_FILE_H_ +#define _SYS_FILE_H_ + +#include +#include +#include +#include +#include +#include + + +#ifndef _KAUTH_CRED_T +#define _KAUTH_CRED_T +struct ucred; +typedef struct ucred *kauth_cred_t; +struct posix_cred; +typedef struct posix_cred *posix_cred_t; +#endif /* !_KAUTH_CRED_T */ + +__BEGIN_DECLS + +__END_DECLS +#endif /* !_SYS_FILE_H_ */