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/*** coff information for WDC 65816 */ |
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/********************** FILE HEADER **********************/ |
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struct external_filehdr { |
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char f_magic[2]; /* magic number */ |
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char f_nscns[2]; /* number of sections */ |
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char f_timdat[4]; /* time & date stamp */ |
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char f_symptr[4]; /* file pointer to symtab */ |
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char f_nsyms[4]; /* number of symtab entries */ |
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char f_opthdr[2]; /* sizeof(optional hdr) */ |
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char f_flags[2]; /* flags */ |
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}; |
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#define W65MAGIC 0x6500 |
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#define W65BADMAG(x) (((x).f_magic!=W65MAGIC)) |
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#define FILHDR struct external_filehdr |
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#define FILHSZ sizeof(FILHDR) |
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/********************** AOUT "OPTIONAL HEADER" **********************/ |
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typedef struct |
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{ |
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char magic[2]; /* type of file */ |
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char vstamp[2]; /* version stamp */ |
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char tsize[4]; /* text size in bytes, padded to FW bdry*/ |
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char dsize[4]; /* initialized data " " */ |
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char bsize[4]; /* uninitialized data " " */ |
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char entry[4]; /* entry pt. */ |
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char text_start[4]; /* base of text used for this file */ |
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char data_start[4]; /* base of data used for this file */ |
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} |
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AOUTHDR; |
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#define AOUTHDRSZ (sizeof(AOUTHDR)) |
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#define AOUTSZ (sizeof(AOUTHDR)) |
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/********************** SECTION HEADER **********************/ |
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struct external_scnhdr { |
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char s_name[8]; /* section name */ |
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char s_paddr[4]; /* physical address, aliased s_nlib */ |
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char s_vaddr[4]; /* virtual address */ |
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char s_size[4]; /* section size */ |
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char s_scnptr[4]; /* file ptr to raw data for section */ |
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char s_relptr[4]; /* file ptr to relocation */ |
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char s_lnnoptr[4]; /* file ptr to line numbers */ |
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char s_nreloc[2]; /* number of relocation entries */ |
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char s_nlnno[2]; /* number of line number entries*/ |
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char s_flags[4]; /* flags */ |
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}; |
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/*
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* names of "special" sections |
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*/ |
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#define _TEXT ".text" |
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#define _DATA ".data" |
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#define _BSS ".bss" |
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#define SCNHDR struct external_scnhdr |
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#define SCNHSZ sizeof(SCNHDR) |
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/********************** LINE NUMBERS **********************/ |
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/* 1 line number entry for every "breakpointable" source line in a section.
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* Line numbers are grouped on a per function basis; first entry in a function |
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* grouping will have l_lnno = 0 and in place of physical address will be the |
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* symbol table index of the function name. |
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*/ |
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struct external_lineno { |
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union { |
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char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ |
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char l_paddr[4]; /* (physical) address of line number */ |
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} l_addr; |
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char l_lnno[4]; /* line number */ |
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}; |
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#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno)); |
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#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val, (bfd_byte *) (ext->l_lnno)); |
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#define LINENO struct external_lineno |
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#define LINESZ sizeof(LINENO) |
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/********************** SYMBOLS **********************/ |
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#define E_SYMNMLEN 8 /* # characters in a symbol name */ |
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#define E_FILNMLEN 14 /* # characters in a file name */ |
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#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
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struct external_syment |
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{ |
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union { |
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char e_name[E_SYMNMLEN]; |
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struct { |
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char e_zeroes[4]; |
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char e_offset[4]; |
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} e; |
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} e; |
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char e_value[4]; |
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char e_scnum[2]; |
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char e_type[2]; |
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char e_sclass[1]; |
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char e_numaux[1]; |
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}; |
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#define N_BTMASK (017) |
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#define N_TMASK (060) |
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#define N_BTSHFT (4) |
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#define N_TSHIFT (2) |
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union external_auxent { |
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struct { |
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char x_tagndx[4]; /* str, un, or enum tag indx */ |
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union { |
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struct { |
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char x_lnno[2]; /* declaration line number */ |
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char x_size[2]; /* str/union/array size */ |
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} x_lnsz; |
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char x_fsize[4]; /* size of function */ |
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} x_misc; |
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union { |
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struct { /* if ISFCN, tag, or .bb */ |
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char x_lnnoptr[4]; /* ptr to fcn line # */ |
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char x_endndx[4]; /* entry ndx past block end */ |
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} x_fcn; |
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struct { /* if ISARY, up to 4 dimen. */ |
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char x_dimen[E_DIMNUM][2]; |
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} 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 { |
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char x_fname[E_FILNMLEN]; |
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struct { |
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char x_zeroes[4]; |
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char x_offset[4]; |
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} x_n; |
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} x_file; |
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struct { |
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char x_scnlen[4]; /* section length */ |
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char x_nreloc[2]; /* # relocation entries */ |
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char x_nlinno[2]; /* # line numbers */ |
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} x_scn; |
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struct { |
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char x_tvfill[4]; /* tv fill value */ |
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char x_tvlen[2]; /* length of .tv */ |
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char x_tvran[2][2]; /* tv range */ |
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} x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
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}; |
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#define SYMENT struct external_syment |
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#define SYMESZ 18 |
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#define AUXENT union external_auxent |
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#define AUXESZ 18 |
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/********************** RELOCATION DIRECTIVES **********************/ |
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/* The external reloc has an offset field, because some of the reloc
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types on the w65 don't have room in the instruction for the entire |
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offset - eg the strange jump and high page addressing modes */ |
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struct external_reloc { |
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char r_vaddr[4]; |
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char r_symndx[4]; |
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char r_offset[4]; |
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char r_type[2]; |
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char r_stuff[2]; |
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}; |
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#define RELOC struct external_reloc |
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#define RELSZ 16 |
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