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| /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| #ifndef __dj_include_coff_h_ |
| #define __dj_include_coff_h_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifndef __dj_ENFORCE_ANSI_FREESTANDING |
| |
| #ifndef __STRICT_ANSI__ |
| |
| #ifndef _POSIX_SOURCE |
| |
| /*** coff information for Intel 386/486. */ |
| |
| /********************** FILE HEADER **********************/ |
| |
| struct external_filehdr { |
| unsigned short f_magic; /* magic number */ |
| unsigned short f_nscns; /* number of sections */ |
| unsigned long f_timdat; /* time & date stamp */ |
| unsigned long f_symptr; /* file pointer to symtab */ |
| unsigned long f_nsyms; /* number of symtab entries */ |
| unsigned short f_opthdr; /* sizeof(optional hdr) */ |
| unsigned short f_flags; /* flags */ |
| }; |
| |
| |
| /* Bits for f_flags: |
| * F_RELFLG relocation info stripped from file |
| * F_EXEC file is executable (no unresolved external references) |
| * F_LNNO line numbers stripped from file |
| * F_LSYMS local symbols stripped from file |
| * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax) |
| */ |
| |
| #define F_RELFLG (0x0001) |
| #define F_EXEC (0x0002) |
| #define F_LNNO (0x0004) |
| #define F_LSYMS (0x0008) |
| |
| |
| |
| #define I386MAGIC 0x14c |
| #define I386AIXMAGIC 0x175 |
| #define I386BADMAG(x) (((x).f_magic!=I386MAGIC) && (x).f_magic!=I386AIXMAGIC) |
| |
| |
| #define FILHDR struct external_filehdr |
| #define FILHSZ sizeof(FILHDR) |
| |
| |
| /********************** AOUT "OPTIONAL HEADER" **********************/ |
| |
| |
| typedef struct |
| { |
| unsigned short magic; /* type of file */ |
| unsigned short vstamp; /* version stamp */ |
| unsigned long tsize; /* text size in bytes, padded to FW bdry*/ |
| unsigned long dsize; /* initialized data " " */ |
| unsigned long bsize; /* uninitialized data " " */ |
| unsigned long entry; /* entry pt. */ |
| unsigned long text_start; /* base of text used for this file */ |
| unsigned long data_start; /* base of data used for this file */ |
| } |
| AOUTHDR; |
| |
| |
| typedef struct gnu_aout { |
| unsigned long info; |
| unsigned long tsize; |
| unsigned long dsize; |
| unsigned long bsize; |
| unsigned long symsize; |
| unsigned long entry; |
| unsigned long txrel; |
| unsigned long 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 */ |
| |
| |
| /********************** SECTION HEADER **********************/ |
| |
| |
| struct external_scnhdr { |
| char s_name[8]; /* section name */ |
| unsigned long s_paddr; /* physical address, aliased s_nlib */ |
| unsigned long s_vaddr; /* virtual address */ |
| unsigned long s_size; /* section size */ |
| unsigned long s_scnptr; /* file ptr to raw data for section */ |
| unsigned long s_relptr; /* file ptr to relocation */ |
| unsigned long s_lnnoptr; /* file ptr to line numbers */ |
| unsigned short s_nreloc; /* number of relocation entries */ |
| unsigned short s_nlnno; /* number of line number entries*/ |
| unsigned long s_flags; /* flags */ |
| }; |
| |
| #define SCNHDR struct external_scnhdr |
| #define SCNHSZ sizeof(SCNHDR) |
| |
| /* |
| * names of "special" sections |
| */ |
| #define _TEXT ".text" |
| #define _DATA ".data" |
| #define _BSS ".bss" |
| #define _COMMENT ".comment" |
| #define _LIB ".lib" |
| |
| /* |
| * s_flags "type" |
| */ |
| #define STYP_TEXT (0x0020) /* section contains text only */ |
| #define STYP_DATA (0x0040) /* section contains data only */ |
| #define STYP_BSS (0x0080) /* section contains bss only */ |
| |
| /********************** 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 { |
| unsigned long l_symndx __attribute__((packed)); /* function name symbol index, iff l_lnno == 0 */ |
| unsigned long l_paddr __attribute__((packed)); /* (physical) address of line number */ |
| } l_addr; |
| unsigned short l_lnno; /* line number */ |
| }; |
| |
| |
| #define LINENO struct external_lineno |
| #define LINESZ sizeof(LINENO) |
| |
| |
| /********************** SYMBOLS **********************/ |
| |
| #define E_SYMNMLEN 8 /* # characters in a symbol name */ |
| #define E_FILNMLEN 14 /* # characters in a file name */ |
| #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
| |
| struct external_syment |
| { |
| union { |
| char e_name[E_SYMNMLEN]; |
| struct { |
| unsigned long e_zeroes __attribute__((packed)); |
| unsigned long e_offset __attribute__((packed)); |
| } e; |
| } e; |
| unsigned long e_value __attribute__((packed)); |
| short e_scnum; |
| unsigned short e_type; |
| unsigned char e_sclass; |
| unsigned char e_numaux; |
| }; |
| |
| #define N_BTMASK (0xf) |
| #define N_TMASK (0x30) |
| #define N_BTSHFT (4) |
| #define N_TSHIFT (2) |
| |
| union external_auxent { |
| struct { |
| unsigned long x_tagndx __attribute__((packed)); /* str, un, or enum tag indx */ |
| union { |
| struct { |
| unsigned short x_lnno; /* declaration line number */ |
| unsigned short x_size; /* str/union/array size */ |
| } x_lnsz; |
| unsigned long x_fsize __attribute__((packed)); /* size of function */ |
| } x_misc; |
| union { |
| struct { /* if ISFCN, tag, or .bb */ |
| unsigned long x_lnnoptr __attribute__((packed)); /* ptr to fcn line # */ |
| unsigned long x_endndx __attribute__((packed)); /* entry ndx past block end */ |
| } x_fcn; |
| struct { /* if ISARY, up to 4 dimen. */ |
| unsigned short x_dimen[E_DIMNUM]; |
| } x_ary; |
| } x_fcnary; |
| unsigned short x_tvndx; /* tv index */ |
| } x_sym; |
| |
| union { |
| char x_fname[E_FILNMLEN]; |
| struct { |
| unsigned long x_zeroes __attribute__((packed)); |
| unsigned long x_offset __attribute__((packed)); |
| } x_n; |
| } x_file; |
| |
| struct { |
| unsigned long x_scnlen __attribute__((packed)); /* section length */ |
| unsigned short x_nreloc; /* # relocation entries */ |
| unsigned short x_nlinno; /* # line numbers */ |
| } x_scn; |
| |
| struct { |
| unsigned long x_tvfill __attribute__((packed)); /* tv fill value */ |
| unsigned short x_tvlen; /* length of .tv */ |
| unsigned short x_tvran[2]; /* tv range */ |
| } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
| |
| |
| }; |
| |
| #define SYMENT struct external_syment |
| #define SYMESZ sizeof(SYMENT) |
| #define AUXENT union external_auxent |
| #define AUXESZ sizeof(AUXENT) |
| |
| |
| # define _ETEXT "etext" |
| |
| |
| /* Relocatable symbols have number of the section in which they are defined, |
| or one of the following: */ |
| |
| #define N_UNDEF ((short)0) /* undefined symbol */ |
| #define N_ABS ((short)-1) /* value of symbol is absolute */ |
| #define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */ |
| #define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */ |
| #define P_TV ((short)-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 /* unsigned long */ |
| #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 { |
| unsigned long r_vaddr __attribute__((packed)); |
| unsigned long r_symndx __attribute__((packed)); |
| unsigned short 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 |
| |
| #endif /* !_POSIX_SOURCE */ |
| #endif /* !__STRICT_ANSI__ */ |
| #endif /* !__dj_ENFORCE_ANSI_FREESTANDING */ |
| |
| #ifndef __dj_ENFORCE_FUNCTION_CALLS |
| #endif /* !__dj_ENFORCE_FUNCTION_CALLS */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* !__dj_include_coff_h_ */ |