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/* external.h -- External COFF structures |
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Copyright 2001, 2006, 2010 Free Software Foundation, Inc. |
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This program is free software; you can redistribute it and/or modify |
it under the terms of the GNU General Public License as published by |
the Free Software Foundation; either version 3 of the License, or |
(at your option) any later version. |
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This program 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 General Public License for more details. |
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You should have received a copy of the GNU General Public License |
along with this program; if not, write to the Free Software |
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
MA 02110-1301, USA. */ |
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#ifndef COFF_EXTERNAL_H |
#define COFF_EXTERNAL_H |
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#ifndef DO_NOT_DEFINE_FILHDR |
/********************** FILE HEADER **********************/ |
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struct external_filehdr |
{ |
char f_magic[2]; /* magic number */ |
char f_nscns[2]; /* number of sections */ |
char f_timdat[4]; /* time & date stamp */ |
char f_symptr[4]; /* file pointer to symtab */ |
char f_nsyms[4]; /* number of symtab entries */ |
char f_opthdr[2]; /* sizeof(optional hdr) */ |
char f_flags[2]; /* flags */ |
}; |
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#define FILHDR struct external_filehdr |
#define FILHSZ 20 |
#endif |
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#ifndef DO_NOT_DEFINE_AOUTHDR |
/********************** AOUT "OPTIONAL HEADER" **********************/ |
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typedef struct external_aouthdr |
{ |
char magic[2]; /* type of file */ |
char vstamp[2]; /* version stamp */ |
char tsize[4]; /* text size in bytes, padded to FW bdry*/ |
char dsize[4]; /* initialized data " " */ |
char bsize[4]; /* uninitialized data " " */ |
char entry[4]; /* entry pt. */ |
char text_start[4]; /* base of text used for this file */ |
char data_start[4]; /* base of data used for this file */ |
} ATTRIBUTE_PACKED |
AOUTHDR; |
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#define AOUTHDRSZ 28 |
#define AOUTSZ 28 |
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typedef struct external_aouthdr64 |
{ |
char magic[2]; /* Type of file. */ |
char vstamp[2]; /* Version stamp. */ |
char tsize[4]; /* Text size in bytes, padded to FW bdry*/ |
char dsize[4]; /* Initialized data " ". */ |
char bsize[4]; /* Uninitialized data " ". */ |
char entry[4]; /* Entry pt. */ |
char text_start[4]; /* Base of text used for this file. */ |
} |
AOUTHDR64; |
#define AOUTHDRSZ64 24 |
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#endif /* not DO_NOT_DEFINE_AOUTHDR */ |
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#ifndef DO_NOT_DEFINE_SCNHDR |
/********************** SECTION HEADER **********************/ |
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struct external_scnhdr |
{ |
char s_name[8]; /* section name */ |
char s_paddr[4]; /* physical address, aliased s_nlib */ |
char s_vaddr[4]; /* virtual address */ |
char s_size[4]; /* section size */ |
char s_scnptr[4]; /* file ptr to raw data for section */ |
char s_relptr[4]; /* file ptr to relocation */ |
char s_lnnoptr[4]; /* file ptr to line numbers */ |
char s_nreloc[2]; /* number of relocation entries */ |
char s_nlnno[2]; /* number of line number entries */ |
char s_flags[4]; /* flags */ |
}; |
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#define SCNHDR struct external_scnhdr |
#define SCNHSZ 40 |
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/* Names of "special" sections. */ |
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#define _TEXT ".text" |
#define _DATA ".data" |
#define _BSS ".bss" |
#define _COMMENT ".comment" |
#define _LIB ".lib" |
#endif /* not DO_NOT_DEFINE_SCNHDR */ |
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#ifndef DO_NOT_DEFINE_LINENO |
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/********************** LINE NUMBERS **********************/ |
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#ifndef L_LNNO_SIZE |
#error L_LNNO_SIZE needs to be defined |
#endif |
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/* 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 |
{ |
char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ |
char l_paddr[4]; /* (physical) address of line number */ |
} l_addr; |
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char l_lnno[L_LNNO_SIZE]; /* line number */ |
}; |
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#define LINENO struct external_lineno |
#define LINESZ (4 + L_LNNO_SIZE) |
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#if L_LNNO_SIZE == 4 |
#define GET_LINENO_LNNO(abfd, ext) H_GET_32 (abfd, (ext->l_lnno)) |
#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_32 (abfd, val, (ext->l_lnno)) |
#endif |
#if L_LNNO_SIZE == 2 |
#define GET_LINENO_LNNO(abfd, ext) H_GET_16 (abfd, (ext->l_lnno)) |
#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_16 (abfd, val, (ext->l_lnno)) |
#endif |
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#endif /* not DO_NOT_DEFINE_LINENO */ |
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#ifndef DO_NOT_DEFINE_SYMENT |
/********************** SYMBOLS **********************/ |
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#define E_SYMNMLEN 8 /* # characters in a symbol name */ |
#ifndef E_FILNMLEN |
#define E_FILNMLEN 14 |
#endif |
#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
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struct external_syment |
{ |
union |
{ |
char e_name[E_SYMNMLEN]; |
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struct |
{ |
char e_zeroes[4]; |
char e_offset[4]; |
} e; |
} e; |
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char e_value[4]; |
char e_scnum[2]; |
char e_type[2]; |
char e_sclass[1]; |
char e_numaux[1]; |
} ATTRIBUTE_PACKED ; |
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#define SYMENT struct external_syment |
#define SYMESZ 18 |
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#ifndef N_BTMASK |
#define N_BTMASK 0xf |
#endif |
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#ifndef N_TMASK |
#define N_TMASK 0x30 |
#endif |
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#ifndef N_BTSHFT |
#define N_BTSHFT 4 |
#endif |
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#ifndef N_TSHIFT |
#define N_TSHIFT 2 |
#endif |
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#endif /* not DO_NOT_DEFINE_SYMENT */ |
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#ifndef DO_NOT_DEFINE_AUXENT |
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union external_auxent |
{ |
struct |
{ |
char x_tagndx[4]; /* str, un, or enum tag indx */ |
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union |
{ |
struct |
{ |
char x_lnno[2]; /* declaration line number */ |
char x_size[2]; /* str/union/array size */ |
} x_lnsz; |
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char x_fsize[4]; /* size of function */ |
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} x_misc; |
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union |
{ |
struct /* if ISFCN, tag, or .bb */ |
{ |
char x_lnnoptr[4]; /* ptr to fcn line # */ |
char x_endndx[4]; /* entry ndx past block end */ |
} x_fcn; |
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struct /* if ISARY, up to 4 dimen. */ |
{ |
char x_dimen[E_DIMNUM][2]; |
} x_ary; |
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} x_fcnary; |
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char x_tvndx[2]; /* tv index */ |
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} x_sym; |
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union |
{ |
char x_fname[E_FILNMLEN]; |
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struct |
{ |
char x_zeroes[4]; |
char x_offset[4]; |
} x_n; |
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} x_file; |
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struct |
{ |
char x_scnlen[4]; /* section length */ |
char x_nreloc[2]; /* # relocation entries */ |
char x_nlinno[2]; /* # line numbers */ |
#ifdef INCLUDE_COMDAT_FIELDS_IN_AUXENT |
char x_checksum[4]; /* section COMDAT checksum */ |
char x_associated[2]; /* COMDAT associated section index */ |
char x_comdat[1]; /* COMDAT selection number */ |
#endif |
} x_scn; |
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struct |
{ |
char x_tvfill[4]; /* tv fill value */ |
char x_tvlen[2]; /* length of .tv */ |
char x_tvran[2][2]; /* tv range */ |
} x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
} ATTRIBUTE_PACKED ; |
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#define AUXENT union external_auxent |
#define AUXESZ 18 |
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#define _ETEXT "etext" |
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#endif /* not DO_NOT_DEFINE_AUXENT */ |
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#endif /* COFF_EXTERNAL_H */ |