X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..c6bf4f310a33a9262d455ea4d3f0630b1255e3fe:/osfmk/kern/kalloc.h diff --git a/osfmk/kern/kalloc.h b/osfmk/kern/kalloc.h index df89dd686..0a1d56917 100644 --- a/osfmk/kern/kalloc.h +++ b/osfmk/kern/kalloc.h @@ -1,88 +1,207 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * @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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * 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) 1991,1990,1989,1988,1987 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 _KERN_KALLOC_H_ -#define _KERN_KALLOC_H_ +#ifdef KERNEL_PRIVATE +#ifndef _KERN_KALLOC_H_ +#define _KERN_KALLOC_H_ #include +#include +#include +#include + +__BEGIN_DECLS + +#if XNU_KERNEL_PRIVATE + +extern void * +kalloc_canblock( + vm_size_t * size, + boolean_t canblock, + vm_allocation_site_t * site); + +extern vm_size_t +kalloc_size( + void * addr); + +extern vm_size_t +kfree_addr( + void * addr); + +extern vm_size_t +kalloc_bucket_size( + vm_size_t size); + +#define kalloc(size) \ + ({ VM_ALLOC_SITE_STATIC(0, 0); \ + vm_size_t tsize = (size); \ + kalloc_canblock(&tsize, TRUE, &site); }) + +#define kalloc_tag(size, itag) \ + ({ VM_ALLOC_SITE_STATIC(0, (itag)); \ + vm_size_t tsize = (size); \ + kalloc_canblock(&tsize, TRUE, &site); }) + +#define kalloc_tag_bt(size, itag) \ + ({ VM_ALLOC_SITE_STATIC(VM_TAG_BT, (itag)); \ + vm_size_t tsize = (size); \ + kalloc_canblock(&tsize, TRUE, &site); }) + +#define kalloc_noblock(size) \ + ({ VM_ALLOC_SITE_STATIC(0, 0); \ + vm_size_t tsize = (size); \ + kalloc_canblock(&tsize, FALSE, &site); }) + +#define kalloc_noblock_tag(size, itag) \ + ({ VM_ALLOC_SITE_STATIC(0, (itag)); \ + vm_size_t tsize = (size); \ + kalloc_canblock(&tsize, FALSE, &site); }) + +#define kalloc_noblock_tag_bt(size, itag) \ + ({ VM_ALLOC_SITE_STATIC(VM_TAG_BT, (itag)); \ + vm_size_t tsize = (size); \ + kalloc_canblock(&tsize, FALSE, &site); }) + + +/* these versions update the size reference with the actual size allocated */ + +#define kallocp(size) \ + ({ VM_ALLOC_SITE_STATIC(0, 0); \ + kalloc_canblock((size), TRUE, &site); }) + +#define kallocp_tag(size, itag) \ + ({ VM_ALLOC_SITE_STATIC(0, (itag)); \ + kalloc_canblock((size), TRUE, &site); }) + +#define kallocp_tag_bt(size, itag) \ + ({ VM_ALLOC_SITE_STATIC(VM_TAG_BT, (itag)); \ + kalloc_canblock((size), TRUE, &site); }) + +#define kallocp_noblock(size) \ + ({ VM_ALLOC_SITE_STATIC(0, 0); \ + kalloc_canblock((size), FALSE, &site); }) + +#define kallocp_noblock_tag_bt(size, itag) \ + ({ VM_ALLOC_SITE_STATIC(VM_TAG_BT, (itag)); \ + kalloc_canblock((size), FALSE, &site); }) + + + +extern void kfree(void *data, + vm_size_t size); + +#define kfree(data, size) \ +_Pragma("clang diagnostic push") \ +_Pragma("clang diagnostic ignored \"-Wshadow\"") \ + do { \ + _Static_assert(sizeof (data) == sizeof (void *) || sizeof (data) == sizeof (mach_vm_address_t), "data is not a pointer"); \ + void *__tmp_addr = (void *) data; \ + vm_size_t __tmp_size = size; \ + data = (__typeof__(data)) NULL; \ + (kfree)(__tmp_addr, __tmp_size); \ + } while (0) \ +_Pragma("clang diagnostic pop") + +#define kfree_addr(addr) \ +_Pragma("clang diagnostic push") \ +_Pragma("clang diagnostic ignored \"-Wshadow\"") \ + do { \ + _Static_assert(sizeof (addr) == sizeof (void *) || sizeof (addr) == sizeof (mach_vm_address_t), "addr is not a pointer"); \ + void *__tmp_addr = (void *) addr; \ + addr = (__typeof__(addr)) NULL; \ + (kfree_addr)(__tmp_addr); \ + } while (0) \ +_Pragma("clang diagnostic pop") + +#else /* XNU_KERNEL_PRIVATE */ + +extern void *kalloc(vm_size_t size) __attribute__((alloc_size(1))); + +extern void *kalloc_noblock(vm_size_t size) __attribute__((alloc_size(1))); + +extern void kfree(void *data, + vm_size_t size); -#define KALLOC_MINSIZE 16 +#endif /* !XNU_KERNEL_PRIVATE */ -extern vm_offset_t kalloc( - vm_size_t size); +__END_DECLS -extern vm_offset_t kalloc_noblock( - vm_size_t size); +#ifdef MACH_KERNEL_PRIVATE -extern vm_offset_t kget( - vm_size_t size); +extern void kalloc_init(void); -extern void kfree( - vm_offset_t data, - vm_size_t size); +extern void kalloc_fake_zone_init( int ); -#ifdef MACH_KERNEL_PRIVATE -#include +extern void kalloc_fake_zone_info( + int *count, + vm_size_t *cur_size, + vm_size_t *max_size, + vm_size_t *elem_size, + vm_size_t *alloc_size, + uint64_t *sum_size, + int *collectable, + int *exhaustable, + int *caller_acct); -extern void kalloc_init( - void); +extern vm_size_t kalloc_max_prerounded; +extern vm_size_t kalloc_large_total; -extern void krealloc( - vm_offset_t *addrp, - vm_size_t old_size, - vm_size_t new_size, - simple_lock_t lock); +#endif /* MACH_KERNEL_PRIVATE */ -#endif /* MACH_KERNEL_PRIVATE */ +#endif /* _KERN_KALLOC_H_ */ -#endif /* _KERN_KALLOC_H_ */ +#endif /* KERNEL_PRIVATE */