layout.h   [plain text]

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Portions Copyright (c) 1999 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 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.
 * 
 * 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@
 */
#if defined(__MWERKS__) && !defined(__private_extern__)
#define __private_extern__ __declspec(private_extern)
#endif

/*
 * Global types, variables and routines declared in the file layout.c.
 * (and the global varaiable declared in rld.c).
 *
 * The following include file need to be included before this file:
 * #include <sys/loader.h>
 */

/* The output file's mach header */
__private_extern__ struct mach_header output_mach_header;

/*
 * The output file's symbol table load command and the offsets used in the
 * second pass to output the symbol table and string table.
 */
struct symtab_info {
    struct symtab_command symtab_command;
    unsigned long
      output_strpad,	     /* the number of padded bytes at the end */
      output_merged_strsize, /* the current merged string table size in pass2 */
      output_local_strsize;  /* the current local string table size in pass2 */
};
__private_extern__ struct symtab_info output_symtab_info;

/*
 * The output file's dynamic symbol table load command.
 */
struct dysymtab_info {
    struct dysymtab_command dysymtab_command;
};
__private_extern__ struct dysymtab_info output_dysymtab_info;

/*
 * The output file's two level hints load command.
 */
struct hints_info {
    struct twolevel_hints_command twolevel_hints_command;
};
__private_extern__ struct hints_info output_hints_info;

/*
 * The output file's prebind_cksum load command.
 */
struct cksum_info {
    struct prebind_cksum_command prebind_cksum_command;
};
__private_extern__ struct cksum_info output_cksum_info;

/*
 * The output file's thread load command and the machine specific information
 * for it.
 */
struct thread_info {
    struct thread_command thread_command;
    enum bool thread_in_output;	/* TRUE if the output file has a thread cmd */
    unsigned long flavor;	/* the flavor for the registers with the pc */
    unsigned long count;	/* the count (sizeof(long)) of the state */
    int *entry_point;		/* pointer to the entry point in the state */
    int *stack_pointer;		/* pointer to the stack pointer in the state */
    void *state;		/* a pointer to a thread state */
    unsigned long second_flavor;/* the flavor for the registers with the sp */
    unsigned long second_count;	/* the count (sizeof(long)) of second_state */
    void *second_state;		/* a pointer to the second thread state */
};
__private_extern__ struct thread_info output_thread_info;

/*
 * The output file's routines load command and the information for it.
 */
struct routines_info {
    struct routines_command routines_command;
    enum bool routines_in_output;/* TRUE if the output file has a routines cmd*/
};
__private_extern__ struct routines_info output_routines_info;

__private_extern__ void layout(
    void);
#if defined(RLD) && !defined(SA_RLD)
__private_extern__ void layout_rld_symfile(
    void);
#endif /* defined(RLD) && !defined(SA_RLD) */

#ifdef RLD
/*
 * The user's address function to be called in layout to get the address of
 * where to link edit the result.
 */
__private_extern__ unsigned long (
    *address_func)(
	unsigned long size,
	unsigned long header_address);
#endif RLD

#ifdef DEBUG
__private_extern__ void print_mach_header(
    void);
__private_extern__ void print_symtab_info(
    void);
__private_extern__ void print_thread_info(
    void);
#endif DEBUG