| 1 | /*** coff information for Texas Instruments TMS320C3X */ |
| 2 | |
| 3 | /********************** FILE HEADER **********************/ |
| 4 | |
| 5 | struct external_filehdr { |
| 6 | char f_magic[2]; /* magic number */ |
| 7 | char f_nscns[2]; /* number of sections */ |
| 8 | char f_timdat[4]; /* time & date stamp */ |
| 9 | char f_symptr[4]; /* file pointer to symtab */ |
| 10 | char f_nsyms[4]; /* number of symtab entries */ |
| 11 | char f_opthdr[2]; /* sizeof(optional hdr) */ |
| 12 | char f_flags[2]; /* flags */ |
| 13 | }; |
| 14 | |
| 15 | |
| 16 | #define TIC30MAGIC 0xC000 |
| 17 | |
| 18 | #define TIC30BADMAG(x) (((x).f_magic!=TIC30MAGIC)) |
| 19 | |
| 20 | #define FILHDR struct external_filehdr |
| 21 | #define FILHSZ 20 |
| 22 | |
| 23 | |
| 24 | /********************** AOUT "OPTIONAL HEADER" **********************/ |
| 25 | |
| 26 | |
| 27 | typedef struct |
| 28 | { |
| 29 | char magic[2]; /* type of file */ |
| 30 | char vstamp[2]; /* version stamp */ |
| 31 | char tsize[4]; /* text size in bytes, padded to FW bdry*/ |
| 32 | char dsize[4]; /* initialized data " " */ |
| 33 | char bsize[4]; /* uninitialized data " " */ |
| 34 | char entry[4]; /* entry pt. */ |
| 35 | char text_start[4]; /* base of text used for this file */ |
| 36 | char data_start[4]; /* base of data used for this file */ |
| 37 | } |
| 38 | AOUTHDR; |
| 39 | |
| 40 | |
| 41 | #define AOUTHDRSZ 28 |
| 42 | #define AOUTSZ 28 |
| 43 | |
| 44 | |
| 45 | |
| 46 | |
| 47 | /********************** SECTION HEADER **********************/ |
| 48 | |
| 49 | |
| 50 | struct external_scnhdr { |
| 51 | char s_name[8]; /* section name */ |
| 52 | char s_paddr[4]; /* physical address, aliased s_nlib */ |
| 53 | char s_vaddr[4]; /* virtual address */ |
| 54 | char s_size[4]; /* section size */ |
| 55 | char s_scnptr[4]; /* file ptr to raw data for section */ |
| 56 | char s_relptr[4]; /* file ptr to relocation */ |
| 57 | char s_lnnoptr[4]; /* file ptr to line numbers */ |
| 58 | char s_nreloc[2]; /* number of relocation entries */ |
| 59 | char s_nlnno[2]; /* number of line number entries*/ |
| 60 | char s_flags[4]; /* flags */ |
| 61 | }; |
| 62 | |
| 63 | /* |
| 64 | * names of "special" sections |
| 65 | */ |
| 66 | #define _TEXT ".text" |
| 67 | #define _DATA ".data" |
| 68 | #define _BSS ".bss" |
| 69 | |
| 70 | |
| 71 | #define SCNHDR struct external_scnhdr |
| 72 | #define SCNHSZ 40 |
| 73 | |
| 74 | |
| 75 | /********************** LINE NUMBERS **********************/ |
| 76 | |
| 77 | /* 1 line number entry for every "breakpointable" source line in a section. |
| 78 | * Line numbers are grouped on a per function basis; first entry in a function |
| 79 | * grouping will have l_lnno = 0 and in place of physical address will be the |
| 80 | * symbol table index of the function name. |
| 81 | */ |
| 82 | struct external_lineno { |
| 83 | union { |
| 84 | char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ |
| 85 | char l_paddr[4]; /* (physical) address of line number */ |
| 86 | } l_addr; |
| 87 | char l_lnno[4]; /* line number */ |
| 88 | }; |
| 89 | |
| 90 | #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno)); |
| 91 | #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val, (bfd_byte *) (ext->l_lnno)); |
| 92 | |
| 93 | #define LINENO struct external_lineno |
| 94 | #define LINESZ 8 |
| 95 | |
| 96 | |
| 97 | /********************** SYMBOLS **********************/ |
| 98 | |
| 99 | #define E_SYMNMLEN 8 /* # characters in a symbol name */ |
| 100 | #define E_FILNMLEN 14 /* # characters in a file name */ |
| 101 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
| 102 | |
| 103 | struct external_syment |
| 104 | { |
| 105 | union { |
| 106 | char e_name[E_SYMNMLEN]; |
| 107 | struct { |
| 108 | char e_zeroes[4]; |
| 109 | char e_offset[4]; |
| 110 | } e; |
| 111 | } e; |
| 112 | char e_value[4]; |
| 113 | char e_scnum[2]; |
| 114 | char e_type[2]; |
| 115 | char e_sclass[1]; |
| 116 | char e_numaux[1]; |
| 117 | }; |
| 118 | |
| 119 | |
| 120 | |
| 121 | #define N_BTMASK (017) |
| 122 | #define N_TMASK (060) |
| 123 | #define N_BTSHFT (4) |
| 124 | #define N_TSHIFT (2) |
| 125 | |
| 126 | |
| 127 | union external_auxent { |
| 128 | struct { |
| 129 | char x_tagndx[4]; /* str, un, or enum tag indx */ |
| 130 | union { |
| 131 | struct { |
| 132 | char x_lnno[2]; /* declaration line number */ |
| 133 | char x_size[2]; /* str/union/array size */ |
| 134 | } x_lnsz; |
| 135 | char x_fsize[4]; /* size of function */ |
| 136 | } x_misc; |
| 137 | union { |
| 138 | struct { /* if ISFCN, tag, or .bb */ |
| 139 | char x_lnnoptr[4]; /* ptr to fcn line # */ |
| 140 | char x_endndx[4]; /* entry ndx past block end */ |
| 141 | } x_fcn; |
| 142 | struct { /* if ISARY, up to 4 dimen. */ |
| 143 | char x_dimen[E_DIMNUM][2]; |
| 144 | } x_ary; |
| 145 | } x_fcnary; |
| 146 | char x_tvndx[2]; /* tv index */ |
| 147 | } x_sym; |
| 148 | |
| 149 | union { |
| 150 | char x_fname[E_FILNMLEN]; |
| 151 | struct { |
| 152 | char x_zeroes[4]; |
| 153 | char x_offset[4]; |
| 154 | } x_n; |
| 155 | } x_file; |
| 156 | |
| 157 | struct { |
| 158 | char x_scnlen[4]; /* section length */ |
| 159 | char x_nreloc[2]; /* # relocation entries */ |
| 160 | char x_nlinno[2]; /* # line numbers */ |
| 161 | } x_scn; |
| 162 | |
| 163 | struct { |
| 164 | char x_tvfill[4]; /* tv fill value */ |
| 165 | char x_tvlen[2]; /* length of .tv */ |
| 166 | char x_tvran[2][2]; /* tv range */ |
| 167 | } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
| 168 | |
| 169 | |
| 170 | }; |
| 171 | |
| 172 | #define SYMENT struct external_syment |
| 173 | #define SYMESZ 18 |
| 174 | #define AUXENT union external_auxent |
| 175 | #define AUXESZ 18 |
| 176 | |
| 177 | |
| 178 | |
| 179 | /********************** RELOCATION DIRECTIVES **********************/ |
| 180 | |
| 181 | /* The external reloc has an offset field, because some of the reloc |
| 182 | types on the z8k don't have room in the instruction for the entire |
| 183 | offset - eg with segments */ |
| 184 | |
| 185 | struct external_reloc { |
| 186 | char r_vaddr[4]; |
| 187 | char r_symndx[4]; |
| 188 | char r_offset[4]; |
| 189 | char r_type[2]; |
| 190 | char r_stuff[2]; |
| 191 | }; |
| 192 | |
| 193 | |
| 194 | #define RELOC struct external_reloc |
| 195 | #define RELSZ 16 |
| 196 | |
| 197 | /* TMS320C30 relocation types. */ |
| 198 | |
| 199 | #define R_TIC30_ABS16 0x100 /* 16 bit absolute. */ |
| 200 | #define R_TIC30_ABS24 0x101 /* 24 bit absolute. */ |
| 201 | #define R_TIC30_ABS32 0x102 /* 32 bit absolute. */ |
| 202 | #define R_TIC30_LDP 0x103 /* LDP bits 23-16 to 7-0. */ |
| 203 | #define R_TIC30_PC16 0x104 /* 16 bit pc relative. */ |