FreeBSD/Linux Kernel Cross Reference
sys/libkern/kxld/kxld_seg.h

     /*
      * Copyright (c) 2008 Apple 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@
     */
    #ifndef _KXLD_SEG_H_
    #define _KXLD_SEG_H_
    
    #include <mach/vm_prot.h>
    #include <sys/types.h>
    #if KERNEL
        #include <libkern/kxld_types.h>
    #else
        #include "kxld_types.h"
    #endif
    
    #include "kxld_array.h"
    
    struct kxld_sect;
    struct segment_command;
    struct segment_command_64;
    typedef struct kxld_seg KXLDSeg;
    
    struct kxld_seg {
        char segname[16];
        kxld_addr_t base_addr;
        kxld_addr_t link_addr;
        kxld_size_t vmsize;
        kxld_size_t fileoff;
        KXLDArray sects;
        u_int flags;
        vm_prot_t maxprot;
        vm_prot_t initprot;
    };
    
    /*******************************************************************************
    * Constructors and Destructors
    *******************************************************************************/
    
    #if KXLD_USER_OR_ILP32
    kern_return_t kxld_seg_init_from_macho_32(KXLDSeg *seg, struct segment_command *src)
        __attribute__((nonnull, visibility("hidden")));
    #endif /* KXLD_USER_OR_ILP32 */
    
    #if KXLD_USER_OR_LP64
    kern_return_t kxld_seg_init_from_macho_64(KXLDSeg *seg, struct segment_command_64 *src)
        __attribute__((nonnull, visibility("hidden")));
    #endif /* KXLD_USER_OR_LP64 */
    
    #if KXLD_USER_OR_OBJECT
    kern_return_t kxld_seg_create_seg_from_sections(KXLDArray *segarray, 
        KXLDArray *sectarray)
        __attribute__((nonnull, visibility("hidden")));
    
    kern_return_t kxld_seg_finalize_object_segment(KXLDArray *segarray,
        KXLDArray *section_order, u_long hdrsize)
        __attribute__((nonnull, visibility("hidden")));
    #endif /* KXLD_USER_OR_OBJECT */
    
    void kxld_seg_clear(KXLDSeg *seg)
        __attribute__((nonnull, visibility("hidden")));
    
    void kxld_seg_deinit(KXLDSeg *seg)
        __attribute__((nonnull, visibility("hidden")));
    
    
    /*******************************************************************************
    * Accessors
    *******************************************************************************/
    
    kxld_size_t kxld_seg_get_vmsize(const KXLDSeg *seg)
        __attribute__((pure, nonnull, visibility("hidden")));
    
    u_long kxld_seg_get_macho_header_size(const KXLDSeg *seg, boolean_t is_32_bit)
        __attribute__((pure, nonnull, visibility("hidden")));
    
    u_long kxld_seg_get_macho_data_size(const KXLDSeg *seg)
       __attribute__((pure, nonnull, visibility("hidden")));
   
   kern_return_t
   kxld_seg_export_macho_to_file_buffer(const KXLDSeg *seg, u_char *buf,
       u_long *header_offset, u_long header_size, 
       u_long *data_offset, u_long data_size,
       boolean_t is_32_bit)
       __attribute__((nonnull, visibility("hidden")));
   
   kern_return_t
   kxld_seg_export_macho_to_vm(const KXLDSeg *seg, u_char *buf,
       u_long *header_offset, u_long header_size, 
       u_long data_size, kxld_addr_t file_link_addr, 
       boolean_t is_32_bit)
       __attribute__((nonnull, visibility("hidden")));
   
   /*******************************************************************************
   * Modifiers
   *******************************************************************************/
   
   kern_return_t kxld_seg_add_section(KXLDSeg *seg, struct kxld_sect *sect)
       __attribute__((nonnull, visibility("hidden")));
   
   /* To be called after all sections are added */
   kern_return_t kxld_seg_finish_init(KXLDSeg *seg)
       __attribute__((nonnull, visibility("hidden")));
   
   void kxld_seg_set_vm_protections(KXLDSeg *seg, boolean_t strict_protections)
       __attribute__((nonnull, visibility("hidden")));
   
   void kxld_seg_relocate(KXLDSeg *Seg, kxld_addr_t link_addr)
       __attribute__((nonnull, visibility("hidden")));
   
   #endif /* _KXLD_SEG_H_ */
   

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