FreeBSD/Linux Kernel Cross Reference
sys/EXTERNAL_HEADERS/mach-o/kld.h

     /*
      * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_LICENSE_HEADER_START@
      * 
      * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
      * 
      * 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 _MACHO_KLD_H_
    #define _MACHO_KLD_H_
    
    #include <mach-o/loader.h>
    #include <stdarg.h>
    
    /*
     * These API's are in libkld.  Both kmodload(8) and /mach_kernel should
     * link with -lkld and then ld(1) will expand -lkld to libkld.dylib or
     * libkld.a depending on if -dynamic or -static is in effect.
     *
     * Note: we are using the __DYNAMIC__ flag to indicate user space kernel
     * linking and __STATIC__ as a synonym of KERNEL.
     */
    
    /*
     * Note that you must supply the following function for error reporting when
     * using any of the functions listed here.
     */
    extern void kld_error_vprintf(const char *format, va_list ap);
    
    /*
     * These two are only in libkld.dylib for use by kmodload(8) (user code compiled
     * with the default -dynamic).
     */
    #ifdef __DYNAMIC__
    __private_extern__ long kld_load_basefile(
        const char *base_filename);
    
    /* Note: this takes only one object file name */
    __private_extern__ long kld_load(
        struct mach_header **header_addr,
        const char *object_filename,
        const char *output_filename);
    
    __private_extern__ long kld_load_from_memory(
        struct mach_header **header_addr,
        const char *object_name,
        char *object_addr,
        long object_size,
        const char *output_filename);
    #endif /* __DYNAMIC__ */
    
    /*
     * This two are only in libkld.a use by /mach_kernel (kernel code compiled with
     * -static).
     */
    #ifdef __STATIC__
    /* Note: this api does not write an output file */
    __private_extern__ long kld_load_from_memory(
        struct mach_header **header_addr,
        const char *object_name,
        char *object_addr,
        long object_size);
    #endif /* __STATIC__ */
    
    __private_extern__ long kld_load_basefile_from_memory(
        const char *base_filename,
        char *base_addr,
        long base_size);
    
    __private_extern__ long kld_unload_all(
        long deallocate_sets);
    
    __private_extern__ long kld_lookup(
        const char *symbol_name,
        unsigned long *value);
    
    __private_extern__ long kld_forget_symbol(
        const char *symbol_name);
    
    __private_extern__ void kld_address_func(
        unsigned long (*func)(unsigned long size, unsigned long headers_size));
    
   #define KLD_STRIP_ALL   0x00000000
   #define KLD_STRIP_NONE  0x00000001
   
   __private_extern__ void kld_set_link_options(
       unsigned long link_options);
   
   #endif /* _MACHO_KLD_H_ */

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