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/**
* @namespace biew_plugins_auto
* @file plugins/bin/coff386.h
* @brief This file contains coff-i386 file format definition.
* @version -
* @remark Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation,
* Inc. This file is part of the GNU C Library.
* The GNU C Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
* The GNU C Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
* You should have received a copy of the GNU Library General Public
* License along with the GNU C Library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
* @note Requires POSIX compatible development system
*
* @author GNU FSF
* @since 1995
**/
#ifndef __SYS_DEP_H
#include "_sys_dep.h"
#endif
#ifdef __HAVE_PRAGMA_PACK__
#pragma pack(1)
#endif
/********************** FILE HEADER **********************/
struct external_filehdr {
uint8_t f_magic[2]; /**< magic number */
uint8_t f_nscns[2]; /**< number of sections */
uint8_t f_timdat[4]; /**< time & date stamp */
uint8_t f_symptr[4]; /**< file pointer to symtab */
uint8_t f_nsyms[4]; /**< number of symtab entries */
uint8_t f_opthdr[2]; /**< sizeof(optional hdr) */
uint8_t f_flags[2]; /**< flags */
};
#define F_RELFLG (0x0001) /**< relocation info stripped from file */
#define F_EXEC (0x0002) /**< file is executable (no unresolved external references) */
#define F_LNNO (0x0004) /**< line numbers stripped from file */
#define F_LSYMS (0x0008) /**< local symbols stripped from file */
#define F_AR32WR (0x0100) /**< file has byte ordering of an AR32WR machine (e.g. vax) */
#define I386MAGIC 0x14c
#define I386PTXMAGIC 0x154
#define I386AIXMAGIC 0x175
/** This is Lynx's all-platform magic number for executables. */
#define LYNXCOFFMAGIC 0415
#define I386BADMAG(x) (((x) != I386MAGIC) \
&& (x) != I386AIXMAGIC \
&& (x) != I386PTXMAGIC \
&& (x) != LYNXCOFFMAGIC)
#define FILHDR struct external_filehdr
#define FILHSZ 20
/********************** AOUT "OPTIONAL HEADER" **********************/
typedef struct
{
uint8_t magic[2]; /**< type of file */
uint8_t vstamp[2]; /**< version stamp */
uint8_t tsize[4]; /**< text size in bytes, padded to FW bdry*/
uint8_t dsize[4]; /**< initialized data " " */
uint8_t bsize[4]; /**< uninitialized data " " */
uint8_t entry[4]; /**< entry pt. */
uint8_t text_start[4]; /**< base of text used for this file */
uint8_t data_start[4]; /**< base of data used for this file */
}
AOUTHDR;
typedef struct gnu_aout {
uint32_t info;
uint32_t tsize;
uint32_t dsize;
uint32_t bsize;
uint32_t symsize;
uint32_t entry;
uint32_t txrel;
uint32_t dtrel;
} GNU_AOUT;
#define AOUTSZ (sizeof(AOUTHDR))
#define OMAGIC 0404 /**< object files, eg as output */
#define ZMAGIC 0413 /**< demand load format, eg normal ld output */
#define STMAGIC 0401 /**< target shlib */
#define SHMAGIC 0443 /**< host shlib */
/** define some NT default values */
/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
#define NT_SECTION_ALIGNMENT 0x1000
#define NT_FILE_ALIGNMENT 0x200
#define NT_DEF_RESERVE 0x100000
#define NT_DEF_COMMIT 0x1000
/********************** SECTION HEADER **********************/
struct external_scnhdr {
uint8_t s_name[8]; /**< section name */
uint8_t s_paddr[4]; /**< physical address, aliased s_nlib */
uint8_t s_vaddr[4]; /**< virtual address */
uint8_t s_size[4]; /**< section size */
uint8_t s_scnptr[4]; /**< file ptr to raw data for section */
uint8_t s_relptr[4]; /**< file ptr to relocation */
uint8_t s_lnnoptr[4]; /**< file ptr to line numbers */
uint8_t s_nreloc[2]; /**< number of relocation entries */
uint8_t s_nlnno[2]; /**< number of line number entries*/
uint8_t s_flags[4]; /**< flags */
};
#define STYP_TEXT 0x0020
#define STYP_DATA 0x0040
#define STYP_BSS 0x0080
#define SCNHDR struct external_scnhdr
#define SCNHSZ 40
/**
* names of "special" sections
*/
#define _TEXT ".text"
#define _DATA ".data"
#define _BSS ".bss"
#define _COMMENT ".comment"
#define _LIB ".lib"
/********************** LINE NUMBERS **********************/
/** 1 line number entry for every "breakpointable" source line in a section.
* Line numbers are grouped on a per function basis; first entry in a function
* grouping will have l_lnno = 0 and in place of physical address will be the
* symbol table index of the function name.
*/
struct external_lineno {
union {
uint8_t l_symndx[4]; /**< function name symbol index, iff l_lnno == 0*/
uint8_t l_paddr[4]; /**< (physical) address of line number */
} l_addr;
uint8_t l_lnno[2]; /**< line number */
};
#define LINENO struct external_lineno
#define LINESZ 6
/********************** SYMBOLS **********************/
#define E_SYMNMLEN 8 /**< # uint8_tacters in a symbol name */
#define E_FILNMLEN 14 /**< # uint8_tacters in a file name */
#define E_DIMNUM 4 /**< # array dimensions in auxiliary entry */
struct external_syment
{
union {
uint8_t e_name[E_SYMNMLEN];
struct {
uint8_t e_zeroes[4];
uint8_t e_offset[4];
} e;
} e;
uint8_t e_value[4];
uint8_t e_scnum[2];
uint8_t e_type[2];
uint8_t e_sclass[1];
uint8_t e_numaux[1];
};
#define __N_BTMASK (0xf)
#define __N_TMASK (0x30)
#define __N_BTSHFT (4)
#define __N_TSHIFT (2)
union external_auxent {
struct {
uint8_t x_tagndx[4]; /**< str, un, or enum tag indx */
union {
struct {
uint8_t x_lnno[2]; /**< declaration line number */
uint8_t x_size[2]; /**< str/union/array size */
} x_lnsz;
uint8_t x_fsize[4]; /**< size of function */
} x_misc;
union {
struct { /**< if ISFCN, tag, or .bb */
uint8_t x_lnnoptr[4]; /**< ptr to fcn line # */
uint8_t x_endndx[4]; /**< entry ndx past block end */
} x_fcn;
struct { /**< if ISARY, up to 4 dimen. */
uint8_t x_dimen[E_DIMNUM][2];
} x_ary;
} x_fcnary;
uint8_t x_tvndx[2]; /**< tv index */
} x_sym;
union {
uint8_t x_fname[E_FILNMLEN];
struct {
uint8_t x_zeroes[4];
uint8_t x_offset[4];
} x_n;
} x_file;
struct {
uint8_t x_scnlen[4]; /**< section length */
uint8_t x_nreloc[2]; /**< # relocation entries */
uint8_t x_nlinno[2]; /**< # line numbers */
uint8_t x_checksum[4]; /**< section COMDAT checksum */
uint8_t x_associated[2]; /**< COMDAT associated section index */
uint8_t x_comdat[1]; /**< COMDAT selection number */
} x_scn;
struct {
uint8_t x_tvfill[4]; /**< tv fill value */
uint8_t x_tvlen[2]; /**< length of .tv */
uint8_t x_tvran[2][2]; /**< tv range */
} x_tv; /**< info about .tv section (in auxent of symbol .tv)) */
};
#define SYMENT struct external_syment
#define SYMESZ 18
#define AUXENT union external_auxent
#define AUXESZ 18
# define _ETEXT "etext"
/********************** RELOCATION DIRECTIVES **********************/
#define _ETEXT "etext"
/** Relocatable symbols have number of the section in which they are defined,
or one of the following: */
#define N_UNDEF ((int16_t)0) /**< undefined symbol */
#define N_ABS ((int16_t)-1) /**< value of symbol is absolute */
#define N_DEBUG ((int16_t)-2) /**< debugging symbol -- value is meaningless */
#define N_TV ((int16_t)-3) /**< indicates symbol needs preload transfer vector */
#define P_TV ((int16_t)-4) /**< indicates symbol needs postload transfer vector*/
/**
* Type of a symbol, in low N bits of the word
*/
#define T_NULL 0
#define T_VOID 1 /**< function argument (only used by compiler) */
#define T_CHAR 2 /**< character */
#define T_SHORT 3 /**< short integer */
#define T_INT 4 /**< integer */
#define T_LONG 5 /**< long integer */
#define T_FLOAT 6 /**< floating point */
#define T_DOUBLE 7 /**< double word */
#define T_STRUCT 8 /**< structure */
#define T_UNION 9 /**< union */
#define T_ENUM 10 /**< enumeration */
#define T_MOE 11 /**< member of enumeration*/
#define T_UCHAR 12 /**< unsigned character */
#define T_USHORT 13 /**< unsigned short */
#define T_UINT 14 /**< unsigned integer */
#define T_ULONG 15 /**< uint32_t */
#define T_LNGDBL 16 /**< long double */
/**
* derived types, in n_type
*/
#define DT_NON (0) /**< no derived type */
#define DT_PTR (1) /**< pointer */
#define DT_FCN (2) /**< function */
#define DT_ARY (3) /**< array */
#define BTYPE(x) ((x) & N_BTMASK)
#define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
#define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
#define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
#define ISTAG(x) ((x)==C_STRTAG||(x)==C_UNTAG||(x)==C_ENTAG)
#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
/********************** STORAGE CLASSES **********************/
/** This used to be defined as -1, but now n_sclass is unsigned. */
#define C_EFCN 0xff /**< physical end of function */
#define C_NULL 0
#define C_AUTO 1 /**< automatic variable */
#define C_EXT 2 /**< external symbol */
#define C_STAT 3 /**< static */
#define C_REG 4 /**< register variable */
#define C_EXTDEF 5 /**< external definition */
#define C_LABEL 6 /**< label */
#define C_ULABEL 7 /**< undefined label */
#define C_MOS 8 /**< member of structure */
#define C_ARG 9 /**< function argument */
#define C_STRTAG 10 /**< structure tag */
#define C_MOU 11 /**< member of union */
#define C_UNTAG 12 /**< union tag */
#define C_TPDEF 13 /**< type definition */
#define C_USTATIC 14 /**< undefined static */
#define C_ENTAG 15 /**< enumeration tag */
#define C_MOE 16 /**< member of enumeration */
#define C_REGPARM 17 /**< register parameter */
#define C_FIELD 18 /**< bit field */
#define C_AUTOARG 19 /**< auto argument */
#define C_LASTENT 20 /**< dummy entry (end of block) */
#define C_BLOCK 100 /**< ".bb" or ".eb" */
#define C_FCN 101 /**< ".bf" or ".ef" */
#define C_EOS 102 /**< end of structure */
#define C_FILE 103 /**< file name */
#define C_LINE 104 /**< line # reformatted as symbol table entry */
#define C_ALIAS 105 /**< duplicate tag */
#define C_HIDDEN 106 /**< ext symbol in dmert public lib */
/********************** RELOCATION DIRECTIVES **********************/
struct external_reloc {
uint32_t r_vaddr;
uint32_t r_symndx;
uint16_t r_type;
};
#define RELOC struct external_reloc
#define RELSZ sizeof(RELOC)
#define RELOC_REL32 20 /**< 32-bit PC-relative address */
#define RELOC_ADDR32 6 /**< 32-bit absolute address */
#define DEFAULT_DATA_SECTION_ALIGNMENT 4
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/** For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
#ifdef __HAVE_PRAGMA_PACK__
#pragma pack()
#endif
#define RELOC struct external_reloc
|
