1 /* COFF information for TI COFF support. Definitions in this file should be 2 customized in a target-specific file, and then this file included (see 3 tic54x.h for an example). 4 5 Copyright 2000, 2001, 2002, 2003, 2005, 2008, 2009, 2010 6 Free Software Foundation, Inc. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23 #ifndef COFF_TI_H 24 #define COFF_TI_H 25 26 /* Note "coff/external.h is not used because TI adds extra fields to the structures. */ 27 28 /********************** FILE HEADER **********************/ 29 30 struct external_filehdr 31 { 32 char f_magic[2]; /* magic number */ 33 char f_nscns[2]; /* number of sections */ 34 char f_timdat[4]; /* time & date stamp */ 35 char f_symptr[4]; /* file pointer to symtab */ 36 char f_nsyms[4]; /* number of symtab entries */ 37 char f_opthdr[2]; /* sizeof(optional hdr) */ 38 char f_flags[2]; /* flags */ 39 char f_target_id[2]; /* magic no. (TI COFF-specific) */ 40 }; 41 42 /* COFF0 has magic number in f_magic, and omits f_target_id from the file 43 header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2 44 and the target-specific magic number is found in f_target_id */ 45 46 #define TICOFF0MAGIC TI_TARGET_ID 47 #define TICOFF1MAGIC 0x00C1 48 #define TICOFF2MAGIC 0x00C2 49 #define TICOFF_AOUT_MAGIC 0x0108 /* magic number in optional header */ 50 #define TICOFF 1 /* customize coffcode.h */ 51 52 /* The target_id field changes depending on the particular CPU target */ 53 /* for COFF0, the target id appeared in f_magic, where COFFX magic is now */ 54 #ifndef TI_TARGET_ID 55 #error "TI_TARGET_ID needs to be defined for your CPU" 56 #endif 57 58 /* Which bfd_arch to use... */ 59 #ifndef TICOFF_TARGET_ARCH 60 #error "TICOFF_TARGET_ARCH needs to be defined for your CPU" 61 #endif 62 63 #ifndef TICOFF_TARGET_MACHINE_GET 64 #define TICOFF_TARGET_MACHINE_GET(FLAGS) 0 65 #endif 66 67 #ifndef TICOFF_TARGET_MACHINE_SET 68 #define TICOFF_TARGET_MACHINE_SET(FLAGSP, MACHINE) 69 #endif 70 71 /* Default to COFF2 for file output */ 72 #ifndef TICOFF_DEFAULT_MAGIC 73 #define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC 74 #endif 75 76 /* This value is made available in the rare case where a bfd is unavailable */ 77 #ifndef OCTETS_PER_BYTE_POWER 78 #error "OCTETS_PER_BYTE_POWER not defined for this CPU" 79 #else 80 #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER) 81 #endif 82 83 /* default alignment is on a byte (not octet!) boundary */ 84 #ifndef COFF_DEFAULT_SECTION_ALIGNMENT_POWER 85 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0 86 #endif 87 88 /* TI COFF encodes the section alignment in the section header flags */ 89 #define COFF_ALIGN_IN_SECTION_HEADER 1 90 #define COFF_ALIGN_IN_S_FLAGS 1 91 /* requires a power-of-two argument */ 92 #define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags |= (((unsigned)(X)&0xF)<<8)) 93 /* result is a power of two */ 94 #define COFF_DECODE_ALIGNMENT(X) (((X)>>8)&0xF) 95 96 #define COFF0_P(ABFD) (bfd_coff_filhsz(ABFD) == FILHSZ_V0) 97 #define COFF2_P(ABFD) (bfd_coff_scnhsz(ABFD) != SCNHSZ_V01) 98 99 #define COFF0_BADMAG(x) ((x).f_magic != TICOFF0MAGIC) 100 #define COFF1_BADMAG(x) ((x).f_magic != TICOFF1MAGIC || (x).f_target_id != TI_TARGET_ID) 101 #define COFF2_BADMAG(x) ((x).f_magic != TICOFF2MAGIC || (x).f_target_id != TI_TARGET_ID) 102 103 /* we need to read/write an extra field in the coff file header */ 104 #ifndef COFF_ADJUST_FILEHDR_IN_POST 105 #define COFF_ADJUST_FILEHDR_IN_POST(abfd, src, dst) \ 106 do \ 107 { \ 108 if (!COFF0_P (abfd)) \ 109 ((struct internal_filehdr *)(dst))->f_target_id = \ 110 H_GET_16 (abfd, ((FILHDR *)(src))->f_target_id); \ 111 } \ 112 while (0) 113 #endif 114 115 #ifndef COFF_ADJUST_FILEHDR_OUT_POST 116 #define COFF_ADJUST_FILEHDR_OUT_POST(abfd, src, dst) \ 117 do \ 118 { \ 119 if (!COFF0_P (abfd)) \ 120 H_PUT_16 (abfd, ((struct internal_filehdr *)(src))->f_target_id, \ 121 ((FILHDR *)(dst))->f_target_id); \ 122 } \ 123 while (0) 124 #endif 125 126 #define FILHDR struct external_filehdr 127 #define FILHSZ 22 128 #define FILHSZ_V0 20 /* COFF0 omits target_id field */ 129 130 /* File header flags */ 131 #define F_RELFLG (0x0001) 132 #define F_EXEC (0x0002) 133 #define F_LNNO (0x0004) 134 #define F_VERS (0x0010) /* TMS320C4x code */ 135 /* F_LSYMS needs to be redefined in your source file */ 136 #define F_LSYMS_TICOFF (0x0010) /* normal COFF is 0x8 */ 137 138 #define F_10 0x00 /* file built for TMS320C1x devices */ 139 #define F_20 0x10 /* file built for TMS320C2x devices */ 140 #define F_25 0x20 /* file built for TMS320C2x/C5x devices */ 141 #define F_LENDIAN 0x0100 /* 16 bits/word, LSB first */ 142 #define F_SYMMERGE 0x1000 /* duplicate symbols were removed */ 143 144 /********************** OPTIONAL HEADER **********************/ 145 146 147 typedef struct 148 { 149 char magic[2]; /* type of file (0x108) */ 150 char vstamp[2]; /* version stamp */ 151 char tsize[4]; /* text size in bytes, padded to FW bdry*/ 152 char dsize[4]; /* initialized data " " */ 153 char bsize[4]; /* uninitialized data " " */ 154 char entry[4]; /* entry pt. */ 155 char text_start[4]; /* base of text used for this file */ 156 char data_start[4]; /* base of data used for this file */ 157 } 158 AOUTHDR; 159 160 161 #define AOUTHDRSZ 28 162 #define AOUTSZ 28 163 164 165 /********************** SECTION HEADER **********************/ 166 /* COFF0, COFF1 */ 167 struct external_scnhdr_v01 { 168 char s_name[8]; /* section name */ 169 char s_paddr[4]; /* physical address, aliased s_nlib */ 170 char s_vaddr[4]; /* virtual address */ 171 char s_size[4]; /* section size (in WORDS) */ 172 char s_scnptr[4]; /* file ptr to raw data for section */ 173 char s_relptr[4]; /* file ptr to relocation */ 174 char s_lnnoptr[4]; /* file ptr to line numbers */ 175 char s_nreloc[2]; /* number of relocation entries */ 176 char s_nlnno[2]; /* number of line number entries*/ 177 char s_flags[2]; /* flags */ 178 char s_reserved[1]; /* reserved */ 179 char s_page[1]; /* section page number (LOAD) */ 180 }; 181 182 /* COFF2 */ 183 struct external_scnhdr { 184 char s_name[8]; /* section name */ 185 char s_paddr[4]; /* physical address, aliased s_nlib */ 186 char s_vaddr[4]; /* virtual address */ 187 char s_size[4]; /* section size (in WORDS) */ 188 char s_scnptr[4]; /* file ptr to raw data for section */ 189 char s_relptr[4]; /* file ptr to relocation */ 190 char s_lnnoptr[4]; /* file ptr to line numbers */ 191 char s_nreloc[4]; /* number of relocation entries */ 192 char s_nlnno[4]; /* number of line number entries*/ 193 char s_flags[4]; /* flags */ 194 char s_reserved[2]; /* reserved */ 195 char s_page[2]; /* section page number (LOAD) */ 196 }; 197 198 /* 199 * Special section flags 200 */ 201 202 /* TI COFF defines these flags; 203 STYP_CLINK: the section should be excluded from the final 204 linker output if there are no references found to any symbol in the section 205 STYP_BLOCK: the section should be blocked, i.e. if the section would cross 206 a page boundary, it is started at a page boundary instead. 207 TI COFF puts the section alignment power of two in the section flags 208 e.g. 2**N is alignment, flags |= (N & 0xF) << 8 209 */ 210 #define STYP_CLINK (0x4000) 211 #define STYP_BLOCK (0x1000) 212 #define STYP_ALIGN (0x0F00) /* TI COFF stores section alignment here */ 213 214 #define SCNHDR_V01 struct external_scnhdr_v01 215 #define SCNHDR struct external_scnhdr 216 #define SCNHSZ_V01 40 /* for v0 and v1 */ 217 #define SCNHSZ 48 218 219 /* COFF2 changes the offsets and sizes of these fields 220 Assume we're dealing with the COFF2 scnhdr structure, and adjust 221 accordingly. Note: The GNU C versions of some of these macros 222 are necessary in order to avoid compile time warnings triggered 223 gcc's array bounds checking. The PUT_SCNHDR_PAGE macro also has 224 the advantage on not evaluating LOC twice. */ 225 226 #define GET_SCNHDR_NRELOC(ABFD, LOC) \ 227 (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, LOC)) 228 #define PUT_SCNHDR_NRELOC(ABFD, VAL, LOC) \ 229 (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, LOC)) 230 #ifdef __GNUC__ 231 #define GET_SCNHDR_NLNNO(ABFD, LOC) \ 232 ({ \ 233 int nlnno; \ 234 char * ptr = (LOC); \ 235 if (COFF2_P (ABFD)) \ 236 nlnno = H_GET_32 (ABFD, ptr); \ 237 else \ 238 nlnno = H_GET_16 (ABFD, ptr - 2); \ 239 nlnno; \ 240 }) 241 #define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \ 242 do \ 243 { \ 244 char * ptr = (LOC); \ 245 if (COFF2_P (ABFD)) \ 246 H_PUT_32 (ABFD, VAL, ptr); \ 247 else \ 248 H_PUT_16 (ABFD, VAL, ptr - 2); \ 249 } \ 250 while (0) 251 #define GET_SCNHDR_FLAGS(ABFD, LOC) \ 252 ({ \ 253 int flags; \ 254 char * ptr = (LOC); \ 255 if (COFF2_P (ABFD)) \ 256 flags = H_GET_32 (ABFD, ptr); \ 257 else \ 258 flags = H_GET_16 (ABFD, ptr - 4); \ 259 flags; \ 260 }) 261 #define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \ 262 do \ 263 { \ 264 char * ptr = (LOC); \ 265 if (COFF2_P (ABFD)) \ 266 H_PUT_32 (ABFD, VAL, ptr); \ 267 else \ 268 H_PUT_16 (ABFD, VAL, ptr - 4); \ 269 } \ 270 while (0) 271 #define GET_SCNHDR_PAGE(ABFD, LOC) \ 272 ({ \ 273 unsigned page; \ 274 char * ptr = (LOC); \ 275 if (COFF2_P (ABFD)) \ 276 page = H_GET_16 (ABFD, ptr); \ 277 else \ 278 page = (unsigned) H_GET_8 (ABFD, ptr - 7); \ 279 page; \ 280 }) 281 /* On output, make sure that the "reserved" field is zero. */ 282 #define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \ 283 do \ 284 { \ 285 char * ptr = (LOC); \ 286 if (COFF2_P (ABFD)) \ 287 H_PUT_16 (ABFD, VAL, ptr); \ 288 else \ 289 { \ 290 H_PUT_8 (ABFD, VAL, ptr - 7); \ 291 H_PUT_8 (ABFD, 0, ptr - 8); \ 292 } \ 293 } \ 294 while (0) 295 #else 296 #define GET_SCNHDR_NLNNO(ABFD, LOC) \ 297 (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 2)) 298 #define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \ 299 (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 2)) 300 #define GET_SCNHDR_FLAGS(ABFD, LOC) \ 301 (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 4)) 302 #define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \ 303 (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 4)) 304 #define GET_SCNHDR_PAGE(ABFD, LOC) \ 305 (COFF2_P (ABFD) ? H_GET_16 (ABFD, LOC) : (unsigned) H_GET_8 (ABFD, (LOC) - 7)) 306 /* On output, make sure that the "reserved" field is zero. */ 307 #define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \ 308 (COFF2_P (ABFD) \ 309 ? H_PUT_16 (ABFD, VAL, LOC) \ 310 : H_PUT_8 (ABFD, VAL, (LOC) - 7), H_PUT_8 (ABFD, 0, (LOC) - 8)) 311 #endif 312 313 314 /* TI COFF stores section size as number of bytes (address units, not octets), 315 so adjust to be number of octets, which is what BFD expects */ 316 #define GET_SCNHDR_SIZE(ABFD, SZP) \ 317 (H_GET_32 (ABFD, SZP) * bfd_octets_per_byte (ABFD)) 318 #define PUT_SCNHDR_SIZE(ABFD, SZ, SZP) \ 319 H_PUT_32 (ABFD, (SZ) / bfd_octets_per_byte (ABFD), SZP) 320 321 #define COFF_ADJUST_SCNHDR_IN_POST(ABFD, EXT, INT) \ 322 do \ 323 { \ 324 ((struct internal_scnhdr *)(INT))->s_page = \ 325 GET_SCNHDR_PAGE (ABFD, ((SCNHDR *)(EXT))->s_page); \ 326 } \ 327 while (0) 328 329 /* The entire scnhdr may not be assigned. 330 Ensure that everything is initialized. */ 331 #define COFF_ADJUST_SCNHDR_OUT_PRE(ABFD, INT, EXT) \ 332 do \ 333 { \ 334 memset((EXT), 0, sizeof (SCNHDR)); \ 335 } \ 336 while (0) 337 338 /* The line number and reloc overflow checking in coff_swap_scnhdr_out in 339 coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc. 340 Due to different sized v0/v1/v2 section headers, we have to re-write these 341 fields. 342 */ 343 #define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \ 344 do \ 345 { \ 346 PUT_SCNHDR_NLNNO (ABFD, ((struct internal_scnhdr *)(INT))->s_nlnno, \ 347 ((SCNHDR *)(EXT))->s_nlnno); \ 348 PUT_SCNHDR_NRELOC (ABFD, ((struct internal_scnhdr *)(INT))->s_nreloc,\ 349 ((SCNHDR *)(EXT))->s_nreloc); \ 350 PUT_SCNHDR_FLAGS (ABFD, ((struct internal_scnhdr *)(INT))->s_flags, \ 351 ((SCNHDR *)(EXT))->s_flags); \ 352 PUT_SCNHDR_PAGE (ABFD, ((struct internal_scnhdr *)(INT))->s_page, \ 353 ((SCNHDR *)(EXT))->s_page); \ 354 } \ 355 while (0) 356 357 /* 358 * names of "special" sections 359 */ 360 #define _TEXT ".text" 361 #define _DATA ".data" 362 #define _BSS ".bss" 363 #define _CINIT ".cinit" /* initialized C data */ 364 #define _SCONST ".const" /* constants */ 365 #define _SWITCH ".switch" /* switch tables */ 366 #define _STACK ".stack" /* C stack */ 367 #define _SYSMEM ".sysmem" /* used for malloc et al. syscalls */ 368 369 /********************** LINE NUMBERS **********************/ 370 371 /* 1 line number entry for every "breakpointable" source line in a section. 372 * Line numbers are grouped on a per function basis; first entry in a function 373 * grouping will have l_lnno = 0 and in place of physical address will be the 374 * symbol table index of the function name. 375 */ 376 struct external_lineno { 377 union { 378 char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ 379 char l_paddr[4]; /* (physical) address of line number */ 380 } l_addr; 381 char l_lnno[2]; /* line number */ 382 }; 383 384 #define LINENO struct external_lineno 385 #define LINESZ 6 386 387 388 /********************** SYMBOLS **********************/ 389 390 /* NOTE: this is what a local label looks like in assembly source; what it 391 looks like in COFF output is undefined */ 392 #define TICOFF_LOCAL_LABEL_P(NAME) \ 393 ((NAME[0] == '$' && NAME[1] >= '0' && NAME[1] <= '9' && NAME[2] == '\0') \ 394 || NAME[strlen(NAME)-1] == '?') 395 396 #define E_SYMNMLEN 8 /* # characters in a symbol name */ 397 #define E_FILNMLEN 14 /* # characters in a file name */ 398 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ 399 400 struct external_syment 401 { 402 union { 403 char e_name[E_SYMNMLEN]; 404 struct { 405 char e_zeroes[4]; 406 char e_offset[4]; 407 } e; 408 } e; 409 char e_value[4]; 410 char e_scnum[2]; 411 char e_type[2]; 412 char e_sclass[1]; 413 char e_numaux[1]; 414 }; 415 416 417 #define N_BTMASK (017) 418 #define N_TMASK (060) 419 #define N_BTSHFT (4) 420 #define N_TSHIFT (2) 421 422 423 union external_auxent { 424 struct { 425 char x_tagndx[4]; /* str, un, or enum tag indx */ 426 union { 427 struct { 428 char x_lnno[2]; /* declaration line number */ 429 char x_size[2]; /* str/union/array size */ 430 } x_lnsz; 431 char x_fsize[4]; /* size of function */ 432 } x_misc; 433 union { 434 struct { /* if ISFCN, tag, or .bb */ 435 char x_lnnoptr[4]; /* ptr to fcn line # */ 436 char x_endndx[4]; /* entry ndx past block end */ 437 } x_fcn; 438 struct { /* if ISARY, up to 4 dimen. */ 439 char x_dimen[E_DIMNUM][2]; 440 } x_ary; 441 } x_fcnary; 442 char x_tvndx[2]; /* tv index */ 443 } x_sym; 444 445 union { 446 char x_fname[E_FILNMLEN]; 447 struct { 448 char x_zeroes[4]; 449 char x_offset[4]; 450 } x_n; 451 } x_file; 452 453 struct { 454 char x_scnlen[4]; /* section length */ 455 char x_nreloc[2]; /* # relocation entries */ 456 char x_nlinno[2]; /* # line numbers */ 457 } x_scn; 458 459 struct { 460 char x_tvfill[4]; /* tv fill value */ 461 char x_tvlen[2]; /* length of .tv */ 462 char x_tvran[2][2]; /* tv range */ 463 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ 464 465 466 }; 467 468 #define SYMENT struct external_syment 469 #define SYMESZ 18 470 #define AUXENT union external_auxent 471 #define AUXESZ 18 472 473 /* section lengths are in target bytes (not host bytes) */ 474 #define GET_SCN_SCNLEN(ABFD, EXT) \ 475 (H_GET_32 (ABFD, (EXT)->x_scn.x_scnlen) * bfd_octets_per_byte (ABFD)) 476 #define PUT_SCN_SCNLEN(ABFD, INT, EXT) \ 477 H_PUT_32 (ABFD, (INT) / bfd_octets_per_byte (ABFD), (EXT)->x_scn.x_scnlen) 478 479 /* lnsz size is in bits in COFF file, in bytes in BFD */ 480 #define GET_LNSZ_SIZE(abfd, ext) \ 481 (H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) / (in_class != C_FIELD ? 8 : 1)) 482 483 #define PUT_LNSZ_SIZE(abfd, in, ext) \ 484 H_PUT_16 (abfd, ((in_class != C_FIELD) ? (in) * 8 : (in)), \ 485 ext->x_sym.x_misc.x_lnsz.x_size) 486 487 /* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes 488 Also put the load page flag of the section into the symbol value if it's an 489 address. */ 490 #ifndef NEEDS_PAGE 491 #define NEEDS_PAGE(X) 0 492 #define PAGE_MASK 0 493 #endif 494 #define COFF_ADJUST_SYM_IN_POST(ABFD, EXT, INT) \ 495 do \ 496 { \ 497 struct internal_syment *dst = (struct internal_syment *)(INT); \ 498 if (dst->n_sclass == C_MOS || dst->n_sclass == C_MOU) \ 499 dst->n_value /= 8; \ 500 else if (NEEDS_PAGE (dst->n_sclass)) { \ 501 asection *scn = coff_section_from_bfd_index (abfd, dst->n_scnum); \ 502 dst->n_value |= (scn->lma & PAGE_MASK); \ 503 } \ 504 } \ 505 while (0) 506 507 #define COFF_ADJUST_SYM_OUT_POST(ABFD, INT, EXT) \ 508 do \ 509 { \ 510 struct internal_syment *src = (struct internal_syment *)(INT); \ 511 SYMENT *dst = (SYMENT *)(EXT); \ 512 if (src->n_sclass == C_MOU || src->n_sclass == C_MOS) \ 513 H_PUT_32 (abfd, src->n_value * 8, dst->e_value); \ 514 else if (NEEDS_PAGE (src->n_sclass)) { \ 515 H_PUT_32 (abfd, src->n_value &= ~PAGE_MASK, dst->e_value); \ 516 } \ 517 } \ 518 while (0) 519 520 /* Detect section-relative absolute symbols so they get flagged with a sym 521 index of -1. 522 */ 523 #define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC, SECT) \ 524 ((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \ 525 && (RELOC)->howto->name[0] == 'A') 526 527 /********************** RELOCATION DIRECTIVES **********************/ 528 529 struct external_reloc_v0 530 { 531 char r_vaddr[4]; 532 char r_symndx[2]; 533 char r_reserved[2]; 534 char r_type[2]; 535 }; 536 537 struct external_reloc 538 { 539 char r_vaddr[4]; 540 char r_symndx[4]; 541 char r_reserved[2]; /* extended pmad byte for COFF2 */ 542 char r_type[2]; 543 }; 544 545 #define RELOC struct external_reloc 546 #define RELSZ_V0 10 /* FIXME -- coffcode.h needs fixing */ 547 #define RELSZ 12 /* for COFF1/2 */ 548 549 /* various relocation types. */ 550 #define R_ABS 0x0000 /* no relocation */ 551 #define R_REL13 0x002A /* 13-bit direct reference (???) */ 552 #define R_PARTLS7 0x0028 /* 7 LSBs of an address */ 553 #define R_PARTMS9 0x0029 /* 9MSBs of an address */ 554 #define R_EXTWORD 0x002B /* 23-bit direct reference */ 555 #define R_EXTWORD16 0x002C /* 16-bit direct reference to 23-bit addr*/ 556 #define R_EXTWORDMS7 0x002D /* upper 7 bits of 23-bit address */ 557 558 #endif /* COFF_TI_H */ 559