projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 045f6b66 ILT |
1 | /* ECOFF support on Alpha machines. |
| 2 | coff/ecoff.h must be included before this file. */ | |
| 3 | ||
| 4 | /********************** FILE HEADER **********************/ | |
| 5 | ||
| 6 | struct external_filehdr { | |
| 7 | unsigned char f_magic[2]; /* magic number */ | |
| 8 | unsigned char f_nscns[2]; /* number of sections */ | |
| 9 | unsigned char f_timdat[4]; /* time & date stamp */ | |
| 10 | unsigned char f_symptr[8]; /* file pointer to symtab */ | |
| 11 | unsigned char f_nsyms[4]; /* number of symtab entries */ | |
| 12 | unsigned char f_opthdr[2]; /* sizeof(optional hdr) */ | |
| 13 | unsigned char f_flags[2]; /* flags */ | |
| 14 | }; | |
| 15 | ||
| 16 | /* Magic numbers are defined in coff/ecoff.h. */ | |
| 17 | #define ALPHA_ECOFF_BADMAG(x) ((x).f_magic!=ALPHA_MAGIC) | |
| 18 | ||
| 19 | #define FILHDR struct external_filehdr | |
| 20 | #define FILHSZ sizeof(FILHDR) | |
| 21 | ||
| 22 | /********************** AOUT "OPTIONAL HEADER" **********************/ | |
| 23 | ||
| 24 | ||
| 25 | typedef struct external_aouthdr | |
| 26 | { | |
| 27 | unsigned char magic[2]; /* type of file */ | |
| 28 | unsigned char vstamp[2]; /* version stamp */ | |
| 29 | unsigned char tsize[8]; /* text size in bytes, padded to FW bdry*/ | |
| 30 | unsigned char dsize[8]; /* initialized data " " */ | |
| 31 | unsigned char bsize[8]; /* uninitialized data " " */ | |
| 32 | unsigned char entry[8]; /* entry pt. */ | |
| 33 | unsigned char text_start[8]; /* base of text used for this file */ | |
| 34 | unsigned char data_start[8]; /* base of data used for this file */ | |
| 35 | unsigned char bss_start[8]; /* base of bss used for this file */ | |
| 36 | unsigned char gprmask[4]; /* ?? */ | |
| 37 | unsigned char cprmask[4][8]; /* ?? */ | |
| 38 | unsigned char gp_value[4]; /* value for gp register */ | |
| 39 | } AOUTHDR; | |
| 40 | ||
| 41 | /* compute size of a header */ | |
| 42 | ||
| 43 | #define AOUTSZ (sizeof(AOUTHDR)) | |
| 44 | ||
| 45 | /********************** SECTION HEADER **********************/ | |
| 46 | ||
| 47 | struct external_scnhdr { | |
| 48 | unsigned char s_name[8]; /* section name */ | |
| 49 | unsigned char s_paddr[8]; /* physical address, aliased s_nlib */ | |
| 50 | unsigned char s_vaddr[8]; /* virtual address */ | |
| 51 | unsigned char s_size[8]; /* section size */ | |
| 52 | unsigned char s_scnptr[8]; /* file ptr to raw data for section */ | |
| 53 | unsigned char s_relptr[8]; /* file ptr to relocation */ | |
| 54 | unsigned char s_lnnoptr[8]; /* file ptr to line numbers */ | |
| 55 | unsigned char s_nreloc[2]; /* number of relocation entries */ | |
| 56 | unsigned char s_nlnno[2]; /* number of line number entries*/ | |
| 57 | unsigned char s_flags[4]; /* flags */ | |
| 58 | }; | |
| 59 | ||
| 60 | #define SCNHDR struct external_scnhdr | |
| 61 | #define SCNHSZ sizeof(SCNHDR) | |
| 62 | ||
| 63 | /********************** RELOCATION DIRECTIVES **********************/ | |
| 64 | ||
| 65 | struct external_reloc { | |
| 66 | unsigned char r_vaddr[8]; | |
| 67 | unsigned char r_bits[4]; | |
| 68 | }; | |
| 69 | ||
| 70 | #define RELOC struct external_reloc | |
| 71 | #define RELSZ 8 | |
| 72 | ||
| 73 | /* MIPS ECOFF uses a packed 8 byte format for relocs. These constants | |
| 74 | are used to unpack the r_bits field. */ | |
| 75 | ||
| 76 | #define RELOC_BITS0_SYMNDX_SH_LEFT_BIG 16 | |
| 77 | #define RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE 0 | |
| 78 | ||
| 79 | #define RELOC_BITS1_SYMNDX_SH_LEFT_BIG 8 | |
| 80 | #define RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE 8 | |
| 81 | ||
| 82 | #define RELOC_BITS2_SYMNDX_SH_LEFT_BIG 0 | |
| 83 | #define RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE 16 | |
| 84 | ||
| 85 | #define RELOC_BITS3_TYPE_BIG 0x1E | |
| 86 | #define RELOC_BITS3_TYPE_SH_BIG 1 | |
| 87 | #define RELOC_BITS3_TYPE_LITTLE 0x78 | |
| 88 | #define RELOC_BITS3_TYPE_SH_LITTLE 3 | |
| 89 | ||
| 90 | #define RELOC_BITS3_EXTERN_BIG 0x01 | |
| 91 | #define RELOC_BITS3_EXTERN_LITTLE 0x80 | |
| 92 | ||
| 93 | #define DEFAULT_DATA_SECTION_ALIGNMENT 16 | |
| 94 | #define DEFAULT_BSS_SECTION_ALIGNMENT 16 | |
| 95 | #define DEFAULT_TEXT_SECTION_ALIGNMENT 16 | |
| 96 | /* For new sections we havn't heard of before */ | |
| 97 | #define DEFAULT_SECTION_ALIGNMENT 16 | |
| 98 | ||
| 99 | /********************** SYMBOLIC INFORMATION **********************/ | |
| 100 | ||
| 101 | /* Written by John Gilmore. */ | |
| 102 | ||
| 103 | /* ECOFF uses COFF-like section structures, but its own symbol format. | |
| 104 | This file defines the symbol format in fields whose size and alignment | |
| 105 | will not vary on different host systems. */ | |
| 106 | ||
| 107 | /* File header as a set of bytes */ | |
| 108 | ||
| 109 | struct hdr_ext { | |
| 110 | unsigned char h_magic[2]; | |
| 111 | unsigned char h_vstamp[2]; | |
| 112 | unsigned char h_ilineMax[4]; | |
| 113 | unsigned char h_cbLine[4]; | |
| 114 | unsigned char h_cbLineOffset[4]; | |
| 115 | unsigned char h_idnMax[4]; | |
| 116 | unsigned char h_cbDnOffset[4]; | |
| 117 | unsigned char h_ipdMax[4]; | |
| 118 | unsigned char h_cbPdOffset[4]; | |
| 119 | unsigned char h_isymMax[4]; | |
| 120 | unsigned char h_cbSymOffset[4]; | |
| 121 | unsigned char h_ioptMax[4]; | |
| 122 | unsigned char h_cbOptOffset[4]; | |
| 123 | unsigned char h_iauxMax[4]; | |
| 124 | unsigned char h_cbAuxOffset[4]; | |
| 125 | unsigned char h_issMax[4]; | |
| 126 | unsigned char h_cbSsOffset[4]; | |
| 127 | unsigned char h_issExtMax[4]; | |
| 128 | unsigned char h_cbSsExtOffset[4]; | |
| 129 | unsigned char h_ifdMax[4]; | |
| 130 | unsigned char h_cbFdOffset[4]; | |
| 131 | unsigned char h_crfd[4]; | |
| 132 | unsigned char h_cbRfdOffset[4]; | |
| 133 | unsigned char h_iextMax[4]; | |
| 134 | unsigned char h_cbExtOffset[4]; | |
| 135 | }; | |
| 136 | ||
| 137 | /* File descriptor external record */ | |
| 138 | ||
| 139 | struct fdr_ext { | |
| 140 | unsigned char f_adr[4]; | |
| 141 | unsigned char f_rss[4]; | |
| 142 | unsigned char f_issBase[4]; | |
| 143 | unsigned char f_cbSs[4]; | |
| 144 | unsigned char f_isymBase[4]; | |
| 145 | unsigned char f_csym[4]; | |
| 146 | unsigned char f_ilineBase[4]; | |
| 147 | unsigned char f_cline[4]; | |
| 148 | unsigned char f_ioptBase[4]; | |
| 149 | unsigned char f_copt[4]; | |
| 150 | unsigned char f_ipdFirst[2]; | |
| 151 | unsigned char f_cpd[2]; | |
| 152 | unsigned char f_iauxBase[4]; | |
| 153 | unsigned char f_caux[4]; | |
| 154 | unsigned char f_rfdBase[4]; | |
| 155 | unsigned char f_crfd[4]; | |
| 156 | unsigned char f_bits1[1]; | |
| 157 | unsigned char f_bits2[3]; | |
| 158 | unsigned char f_cbLineOffset[4]; | |
| 159 | unsigned char f_cbLine[4]; | |
| 160 | }; | |
| 161 | ||
| 162 | #define FDR_BITS1_LANG_BIG 0xF8 | |
| 163 | #define FDR_BITS1_LANG_SH_BIG 3 | |
| 164 | #define FDR_BITS1_LANG_LITTLE 0x1F | |
| 165 | #define FDR_BITS1_LANG_SH_LITTLE 0 | |
| 166 | ||
| 167 | #define FDR_BITS1_FMERGE_BIG 0x04 | |
| 168 | #define FDR_BITS1_FMERGE_LITTLE 0x20 | |
| 169 | ||
| 170 | #define FDR_BITS1_FREADIN_BIG 0x02 | |
| 171 | #define FDR_BITS1_FREADIN_LITTLE 0x40 | |
| 172 | ||
| 173 | #define FDR_BITS1_FBIGENDIAN_BIG 0x01 | |
| 174 | #define FDR_BITS1_FBIGENDIAN_LITTLE 0x80 | |
| 175 | ||
| 176 | #define FDR_BITS2_GLEVEL_BIG 0xC0 | |
| 177 | #define FDR_BITS2_GLEVEL_SH_BIG 6 | |
| 178 | #define FDR_BITS2_GLEVEL_LITTLE 0x03 | |
| 179 | #define FDR_BITS2_GLEVEL_SH_LITTLE 0 | |
| 180 | ||
| 181 | /* We ignore the `reserved' field in bits2. */ | |
| 182 | ||
| 183 | /* Procedure descriptor external record */ | |
| 184 | ||
| 185 | struct pdr_ext { | |
| 186 | unsigned char p_adr[4]; | |
| 187 | unsigned char p_isym[4]; | |
| 188 | unsigned char p_iline[4]; | |
| 189 | unsigned char p_regmask[4]; | |
| 190 | unsigned char p_regoffset[4]; | |
| 191 | unsigned char p_iopt[4]; | |
| 192 | unsigned char p_fregmask[4]; | |
| 193 | unsigned char p_fregoffset[4]; | |
| 194 | unsigned char p_frameoffset[4]; | |
| 195 | unsigned char p_framereg[2]; | |
| 196 | unsigned char p_pcreg[2]; | |
| 197 | unsigned char p_lnLow[4]; | |
| 198 | unsigned char p_lnHigh[4]; | |
| 199 | unsigned char p_cbLineOffset[4]; | |
| 200 | }; | |
| 201 | ||
| 202 | /* Line numbers */ | |
| 203 | ||
| 204 | struct line_ext { | |
| 205 | unsigned char l_line[4]; | |
| 206 | }; | |
| 207 | ||
| 208 | /* Symbol external record */ | |
| 209 | ||
| 210 | struct sym_ext { | |
| 211 | unsigned char s_iss[4]; | |
| 212 | unsigned char s_value[4]; | |
| 213 | unsigned char s_bits1[1]; | |
| 214 | unsigned char s_bits2[1]; | |
| 215 | unsigned char s_bits3[1]; | |
| 216 | unsigned char s_bits4[1]; | |
| 217 | }; | |
| 218 | ||
| 219 | #define SYM_BITS1_ST_BIG 0xFC | |
| 220 | #define SYM_BITS1_ST_SH_BIG 2 | |
| 221 | #define SYM_BITS1_ST_LITTLE 0x3F | |
| 222 | #define SYM_BITS1_ST_SH_LITTLE 0 | |
| 223 | ||
| 224 | #define SYM_BITS1_SC_BIG 0x03 | |
| 225 | #define SYM_BITS1_SC_SH_LEFT_BIG 3 | |
| 226 | #define SYM_BITS1_SC_LITTLE 0xC0 | |
| 227 | #define SYM_BITS1_SC_SH_LITTLE 6 | |
| 228 | ||
| 229 | #define SYM_BITS2_SC_BIG 0xE0 | |
| 230 | #define SYM_BITS2_SC_SH_BIG 5 | |
| 231 | #define SYM_BITS2_SC_LITTLE 0x07 | |
| 232 | #define SYM_BITS2_SC_SH_LEFT_LITTLE 2 | |
| 233 | ||
| 234 | #define SYM_BITS2_RESERVED_BIG 0x10 | |
| 235 | #define SYM_BITS2_RESERVED_LITTLE 0x08 | |
| 236 | ||
| 237 | #define SYM_BITS2_INDEX_BIG 0x0F | |
| 238 | #define SYM_BITS2_INDEX_SH_LEFT_BIG 16 | |
| 239 | #define SYM_BITS2_INDEX_LITTLE 0xF0 | |
| 240 | #define SYM_BITS2_INDEX_SH_LITTLE 4 | |
| 241 | ||
| 242 | #define SYM_BITS3_INDEX_SH_LEFT_BIG 8 | |
| 243 | #define SYM_BITS3_INDEX_SH_LEFT_LITTLE 4 | |
| 244 | ||
| 245 | #define SYM_BITS4_INDEX_SH_LEFT_BIG 0 | |
| 246 | #define SYM_BITS4_INDEX_SH_LEFT_LITTLE 12 | |
| 247 | ||
| 248 | /* External symbol external record */ | |
| 249 | ||
| 250 | struct ext_ext { | |
| 251 | unsigned char es_bits1[1]; | |
| 252 | unsigned char es_bits2[1]; | |
| 253 | unsigned char es_ifd[2]; | |
| 254 | struct sym_ext es_asym; | |
| 255 | }; | |
| 256 | ||
| 257 | #define EXT_BITS1_JMPTBL_BIG 0x80 | |
| 258 | #define EXT_BITS1_JMPTBL_LITTLE 0x01 | |
| 259 | ||
| 260 | #define EXT_BITS1_COBOL_MAIN_BIG 0x40 | |
| 261 | #define EXT_BITS1_COBOL_MAIN_LITTLE 0x02 | |
| 262 | ||
| 263 | #define EXT_BITS1_WEAKEXT_BIG 0x20 | |
| 264 | #define EXT_BITS1_WEAKEXT_LITTLE 0x04 | |
| 265 | ||
| 266 | /* Dense numbers external record */ | |
| 267 | ||
| 268 | struct dnr_ext { | |
| 269 | unsigned char d_rfd[4]; | |
| 270 | unsigned char d_index[4]; | |
| 271 | }; | |
| 272 | ||
| 273 | /* Relative file descriptor */ | |
| 274 | ||
| 275 | struct rfd_ext { | |
| 276 | unsigned char rfd[4]; | |
| 277 | }; | |
| 278 | ||
| 279 | /* Optimizer symbol external record */ | |
| 280 | ||
| 281 | struct opt_ext { | |
| 282 | unsigned char o_bits1[1]; | |
| 283 | unsigned char o_bits2[1]; | |
| 284 | unsigned char o_bits3[1]; | |
| 285 | unsigned char o_bits4[1]; | |
| 286 | struct rndx_ext o_rndx; | |
| 287 | unsigned char o_offset[4]; | |
| 288 | }; | |
| 289 | ||
| 290 | #define OPT_BITS2_VALUE_SH_LEFT_BIG 16 | |
| 291 | #define OPT_BITS2_VALUE_SH_LEFT_LITTLE 0 | |
| 292 | ||
| 293 | #define OPT_BITS3_VALUE_SH_LEFT_BIG 8 | |
| 294 | #define OPT_BITS3_VALUE_SH_LEFT_LITTLE 8 | |
| 295 | ||
| 296 | #define OPT_BITS4_VALUE_SH_LEFT_BIG 0 | |
| 297 | #define OPT_BITS4_VALUE_SH_LEFT_LITTLE 16 |