108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
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/*
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* Copyright (c) 2008 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef _KXLD_VTABLE_H_
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#define _KXLD_VTABLE_H_
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#include <sys/types.h>
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#if KERNEL
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#include <libkern/kxld_types.h>
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#else
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#include "kxld_types.h"
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#endif
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#include "kxld_array.h"
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struct kxld_array;
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struct kxld_object;
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struct kxld_reloc;
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struct kxld_relocator;
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struct kxld_sect;
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struct kxld_sym;
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struct kxld_symtab;
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struct kxld_vtable_hdr;
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struct section;
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typedef struct kxld_vtable KXLDVTable;
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typedef union kxld_vtable_entry KXLDVTableEntry;
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struct kxld_vtable {
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u_char *vtable;
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const char *name;
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KXLDArray entries;
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boolean_t is_patched;
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};
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struct kxld_vtable_patched_entry {
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char *name;
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kxld_addr_t addr;
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};
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struct kxld_vtable_unpatched_entry {
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const struct kxld_sym *sym;
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struct kxld_reloc *reloc;
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};
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union kxld_vtable_entry {
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struct kxld_vtable_patched_entry patched;
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struct kxld_vtable_unpatched_entry unpatched;
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};
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/*******************************************************************************
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* Constructors and destructors
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*******************************************************************************/
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kern_return_t kxld_vtable_init(KXLDVTable *vtable,
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const struct kxld_sym *vtable_sym, const struct kxld_object *object,
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const struct kxld_dict *defined_cxx_symbols)
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__attribute__((nonnull, visibility("hidden")));
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void kxld_vtable_clear(KXLDVTable *vtable)
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__attribute__((visibility("hidden")));
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void kxld_vtable_deinit(KXLDVTable *vtable)
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__attribute__((visibility("hidden")));
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/*******************************************************************************
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* Accessors
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*******************************************************************************/
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KXLDVTableEntry * kxld_vtable_get_entry_for_offset(const KXLDVTable *vtable,
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u_long offset, boolean_t is_32_bit)
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__attribute__((pure, nonnull, visibility("hidden")));
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/*******************************************************************************
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* Modifiers
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*******************************************************************************/
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/* With strict patching, the vtable patcher with only patch pad slots */
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kern_return_t kxld_vtable_patch(KXLDVTable *vtable, const KXLDVTable *super_vtable,
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struct kxld_object *object)
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__attribute__((nonnull, visibility("hidden")));
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#endif /* _KXLD_VTABLE_H_ */
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