chromium/third_party/nasm/output/outas86.c

/* ----------------------------------------------------------------------- *
 *   
 *   Copyright 1996-2017 The NASM Authors - All Rights Reserved
 *   See the file AUTHORS included with the NASM distribution for
 *   the specific copyright holders.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following
 *   conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *     
 *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ----------------------------------------------------------------------- */

/* 
 * outas86.c	output routines for the Netwide Assembler to produce
 *		Linux as86 (bin86-0.3) object files
 */

#include "compiler.h"

#include "nctype.h"

#include "nasm.h"
#include "nasmlib.h"
#include "error.h"
#include "saa.h"
#include "raa.h"
#include "outform.h"
#include "outlib.h"

#ifdef OF_AS86

struct Piece { … };

struct Symbol { … };

/*
 * Section IDs - used in Piece.number and Symbol.segment.
 */
#define SECT_TEXT …
#define SECT_DATA …
#define SECT_BSS …

/*
 * Flags used in Symbol.flags.
 */
#define SYM_ENTRY …
#define SYM_EXPORT …
#define SYM_IMPORT …
#define SYM_ABSOLUTE …

struct Section { … };

static struct Section stext, sdata;
static uint32_t bsslen;
static int32_t bssindex;

static struct SAA *syms;
static uint32_t nsyms;

static struct RAA *bsym;

static struct SAA *strs;
static size_t strslen;

static int as86_reloc_size;

static void as86_write(void);
static void as86_write_section(struct Section *, int);
static size_t as86_add_string(const char *name);
static void as86_sect_write(struct Section *, const uint8_t *,
                            uint32_t);

static void as86_init(void)
{ … }

static void as86_cleanup(void)
{ … }

static int32_t as86_section_names(char *name, int *bits)
{ … }

static size_t as86_add_string(const char *name)
{ … }

static void as86_deflabel(char *name, int32_t segment, int64_t offset,
                          int is_global, char *special)
{ … }

static void as86_add_piece(struct Section *sect, int type, int32_t offset,
                           int32_t segment, int32_t bytes, int relative)
{ … }

static void as86_out(int32_t segto, const void *data,
		     enum out_type type, uint64_t size,
                     int32_t segment, int32_t wrt)
{ … }

static void as86_write(void)
{ … }

static void as86_set_rsize(int size)
{ … }

static void as86_write_section(struct Section *sect, int index)
{ … }

static void as86_sect_write(struct Section *sect,
                            const uint8_t *data, uint32_t len)
{ … }

extern macros_t as86_stdmac[];

const struct ofmt of_as86 = …;

#endif                          /* OF_AS86 */