4byte_literals.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 4byte_literals.c.
 *
 * The following include files need to be included before this file:
 * #include "ld.h"
 * #include "objects.h"
 */

/*
 * The literal_data which is set into a merged_section's literal_data field for
 * S_4BYTE_LITERALS sections.  The external functions declared at the end of
 * this file operate on this data and are used for the other fields of a
 * merged_section for literals (literal_merge and literal_write).
 */
struct literal4_data {
    struct literal4_block *literal4_blocks;	/* the literal4's */
#ifdef DEBUG
    unsigned long nfiles;	/* number of files with this section */
    unsigned long nliterals;	/* total number of literals in the input files*/
				/*  merged into this section  */
#endif DEBUG
};

/* the number of entries in the hash table */
#define LITERAL4_BLOCK_SIZE 60

/* The structure to hold an 4 byte literal */
struct literal4 {
    unsigned long long0;
};

/* the blocks that store the liiterals; allocated as needed */
struct literal4_block {
    unsigned long used;			/* the number of literals used in */
    struct literal4			/*  this block */
	literal4s[LITERAL4_BLOCK_SIZE];	/* the literals */
    struct literal4_block *next;	/* the next block */
};

__private_extern__ void literal4_merge(
    struct literal4_data *data,
    struct merged_section *ms,
    struct section *s,
    struct section_map *section_map);

__private_extern__ void literal4_order(
    struct literal4_data *data,
    struct merged_section *ms);

__private_extern__ unsigned long lookup_literal4(
    struct literal4 literal4,
    struct literal4_data *data,
    struct merged_section *ms);

__private_extern__ void literal4_output(
    struct literal4_data *data,
    struct merged_section *ms);

__private_extern__ void literal4_free(
    struct literal4_data *data);

#ifdef DEBUG
__private_extern__ void print_literal4_data(
    struct literal4_data *data,
    char *indent);

__private_extern__ void literal4_data_stats(
    struct literal4_data *data,
    struct merged_section *ms);
#endif DEBUG