176 lines
5.9 KiB
C
176 lines
5.9 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_SEG_H_
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#define _KXLD_SEG_H_
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#include <mach/vm_prot.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_sect;
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struct kxld_symtab;
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struct segment_command;
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struct segment_command_64;
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typedef struct kxld_seg KXLDSeg;
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struct kxld_seg {
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char segname[16];
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kxld_addr_t base_addr;
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kxld_addr_t link_addr;
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kxld_size_t vmsize;
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kxld_size_t fileoff;
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KXLDArray sects;
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u_int flags;
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vm_prot_t maxprot;
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vm_prot_t initprot;
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};
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/*******************************************************************************
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* Constructors and Destructors
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*******************************************************************************/
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#if KXLD_USER_OR_ILP32
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kern_return_t kxld_seg_init_from_macho_32(KXLDSeg *seg, struct segment_command *src)
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__attribute__((nonnull, visibility("hidden")));
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#endif /* KXLD_USER_OR_ILP32 */
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#if KXLD_USER_OR_LP64
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kern_return_t kxld_seg_init_from_macho_64(KXLDSeg *seg, struct segment_command_64 *src)
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__attribute__((nonnull, visibility("hidden")));
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#endif /* KXLD_USER_OR_LP64 */
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#if KXLD_USER_OR_OBJECT
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kern_return_t kxld_seg_create_seg_from_sections(KXLDArray *segarray,
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KXLDArray *sectarray)
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__attribute__((nonnull, visibility("hidden")));
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kern_return_t kxld_seg_finalize_object_segment(KXLDArray *segarray,
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KXLDArray *section_order, u_long hdrsize)
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__attribute__((nonnull, visibility("hidden")));
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kern_return_t kxld_seg_init_linkedit(KXLDArray *segs)
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__attribute__((nonnull, visibility("hidden")));
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#endif /* KXLD_USER_OR_OBJECT */
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void kxld_seg_clear(KXLDSeg *seg)
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__attribute__((nonnull, visibility("hidden")));
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void kxld_seg_deinit(KXLDSeg *seg)
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__attribute__((nonnull, visibility("hidden")));
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/*******************************************************************************
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* Accessors
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*******************************************************************************/
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kxld_size_t kxld_seg_get_vmsize(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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u_long kxld_seg_get_macho_header_size(const KXLDSeg *seg, boolean_t is_32_bit)
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__attribute__((pure, nonnull, visibility("hidden")));
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#if 0
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/* This is no longer used, but may be useful some day... */
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u_long kxld_seg_get_macho_data_size(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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#endif
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kern_return_t
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kxld_seg_export_macho_to_file_buffer(const KXLDSeg *seg, u_char *buf,
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u_long *header_offset, u_long header_size,
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u_long *data_offset, u_long data_size,
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boolean_t is_32_bit)
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__attribute__((nonnull, visibility("hidden")));
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kern_return_t
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kxld_seg_export_macho_to_vm(const KXLDSeg *seg,
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u_char *buf,
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u_long *header_offset,
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u_long header_size,
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u_long data_size,
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kxld_addr_t file_link_addr,
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boolean_t is_32_bit)
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__attribute__((nonnull, visibility("hidden")));
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/*******************************************************************************
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* Modifiers
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*******************************************************************************/
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kern_return_t kxld_seg_add_section(KXLDSeg *seg, struct kxld_sect *sect)
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__attribute__((nonnull, visibility("hidden")));
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/* To be called after all sections are added */
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kern_return_t kxld_seg_finish_init(KXLDSeg *seg)
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__attribute__((nonnull, visibility("hidden")));
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void kxld_seg_set_vm_protections(KXLDSeg *seg, boolean_t strict_protections)
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__attribute__((nonnull, visibility("hidden")));
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void kxld_seg_relocate(KXLDSeg *seg, kxld_addr_t link_addr)
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__attribute__((nonnull, visibility("hidden")));
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void kxld_seg_populate_linkedit(KXLDSeg *seg, const struct kxld_symtab *symtab,
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boolean_t is_32_bit
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#if KXLD_PIC_KEXTS
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, const struct kxld_array *locrelocs
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, const struct kxld_array *extrelocs
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, boolean_t target_supports_slideable_kexts
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#endif /* KXLD_PIC_KEXTS */
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, uint32_t splitinfolc_size
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)
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__attribute__((nonnull, visibility("hidden")));
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boolean_t kxld_seg_is_split_seg(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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boolean_t kxld_seg_is_text_seg(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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boolean_t kxld_seg_is_text_exec_seg(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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boolean_t kxld_seg_is_data_seg(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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boolean_t kxld_seg_is_data_const_seg(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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boolean_t kxld_seg_is_linkedit_seg(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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boolean_t kxld_seg_is_llvm_cov_seg(const KXLDSeg *seg)
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__attribute__((pure, nonnull, visibility("hidden")));
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#endif /* _KXLD_SEG_H_ */
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