| 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 2001 Free Software Foundation, Inc. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | #ifndef COFF_TI_H |
| 21 | #define COFF_TI_H |
| 22 | |
| 23 | /* Note "coff/external.h is not used because TI adds extra fields to the structures. */ |
| 24 | |
| 25 | /********************** FILE HEADER **********************/ |
| 26 | |
| 27 | struct external_filehdr |
| 28 | { |
| 29 | char f_magic[2]; /* magic number */ |
| 30 | char f_nscns[2]; /* number of sections */ |
| 31 | char f_timdat[4]; /* time & date stamp */ |
| 32 | char f_symptr[4]; /* file pointer to symtab */ |
| 33 | char f_nsyms[4]; /* number of symtab entries */ |
| 34 | char f_opthdr[2]; /* sizeof(optional hdr) */ |
| 35 | char f_flags[2]; /* flags */ |
| 36 | char f_target_id[2]; /* magic no. (TI COFF-specific) */ |
| 37 | }; |
| 38 | |
| 39 | /* COFF0 has magic number in f_magic, and omits f_target_id from the file |
| 40 | header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2 |
| 41 | and the target-specific magic number is found in f_target_id */ |
| 42 | |
| 43 | #define TICOFF0MAGIC TI_TARGET_ID |
| 44 | #define TICOFF1MAGIC 0x00C1 |
| 45 | #define TICOFF2MAGIC 0x00C2 |
| 46 | #define TICOFF_AOUT_MAGIC 0x0108 /* magic number in optional header */ |
| 47 | #define TICOFF 1 /* customize coffcode.h */ |
| 48 | |
| 49 | /* The target_id field changes depending on the particular CPU target */ |
| 50 | /* for COFF0, the target id appeared in f_magic, where COFFX magic is now */ |
| 51 | #ifndef TI_TARGET_ID |
| 52 | #error "TI_TARGET_ID needs to be defined for your CPU" |
| 53 | #endif |
| 54 | |
| 55 | /* Which bfd_arch to use... */ |
| 56 | #ifndef TICOFF_TARGET_ARCH |
| 57 | #error "TICOFF_TARGET_ARCH needs to be defined for your CPU" |
| 58 | #endif |
| 59 | |
| 60 | /* Default to COFF2 for file output */ |
| 61 | #ifndef TICOFF_DEFAULT_MAGIC |
| 62 | #define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC |
| 63 | #endif |
| 64 | |
| 65 | /* This value is made available in the rare case where a bfd is unavailable */ |
| 66 | #ifndef OCTETS_PER_BYTE_POWER |
| 67 | #error "OCTETS_PER_BYTE_POWER not defined for this CPU" |
| 68 | #else |
| 69 | #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER) |
| 70 | #endif |
| 71 | |
| 72 | /* default alignment is on a byte (not octet!) boundary */ |
| 73 | #ifndef COFF_DEFAULT_SECTION_ALIGNMENT_POWER |
| 74 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0 |
| 75 | #endif |
| 76 | |
| 77 | /* TI COFF encodes the section alignment in the section header flags */ |
| 78 | #define COFF_ALIGN_IN_SECTION_HEADER 1 |
| 79 | #define COFF_ALIGN_IN_S_FLAGS 1 |
| 80 | /* requires a power-of-two argument */ |
| 81 | #define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags |= (((unsigned)(X)&0xF)<<8)) |
| 82 | /* result is a power of two */ |
| 83 | #define COFF_DECODE_ALIGNMENT(X) (((X)>>8)&0xF) |
| 84 | |
| 85 | #define COFF0_P(ABFD) (bfd_coff_filhsz(ABFD) == FILHSZ_V0) |
| 86 | #define COFF2_P(ABFD) (bfd_coff_scnhsz(ABFD) != SCNHSZ_V01) |
| 87 | |
| 88 | #define COFF0_BADMAG(x) ((x).f_magic != TICOFF0MAGIC) |
| 89 | #define COFF1_BADMAG(x) ((x).f_magic != TICOFF1MAGIC || (x).f_target_id != TI_TARGET_ID) |
| 90 | #define COFF2_BADMAG(x) ((x).f_magic != TICOFF2MAGIC || (x).f_target_id != TI_TARGET_ID) |
| 91 | |
| 92 | /* we need to read/write an extra field in the coff file header */ |
| 93 | #ifndef COFF_ADJUST_FILEHDR_IN_POST |
| 94 | #define COFF_ADJUST_FILEHDR_IN_POST(abfd,src,dst) \ |
| 95 | do { ((struct internal_filehdr *)(dst))->f_target_id = \ |
| 96 | bfd_h_get_16(abfd, (bfd_byte *)(((FILHDR *)(src))->f_target_id)); \ |
| 97 | } while(0) |
| 98 | #endif |
| 99 | |
| 100 | #ifndef COFF_ADJUST_FILEHDR_OUT_POST |
| 101 | #define COFF_ADJUST_FILEHDR_OUT_POST(abfd,src,dst) \ |
| 102 | do { bfd_h_put_16(abfd, ((struct internal_filehdr *)(src))->f_target_id, \ |
| 103 | (bfd_byte *)(((FILHDR *)(dst))->f_target_id)); \ |
| 104 | } while(0) |
| 105 | #endif |
| 106 | |
| 107 | #define FILHDR struct external_filehdr |
| 108 | #define FILHSZ 22 |
| 109 | #define FILHSZ_V0 20 /* COFF0 omits target_id field */ |
| 110 | |
| 111 | /* File header flags */ |
| 112 | #define F_RELFLG (0x0001) |
| 113 | #define F_EXEC (0x0002) |
| 114 | #define F_LNNO (0x0004) |
| 115 | /* F_LSYMS needs to be redefined in your source file */ |
| 116 | #define F_LSYMS_TICOFF (0x0010) /* normal COFF is 0x8 */ |
| 117 | |
| 118 | #define F_10 0x00 /* file built for TMS320C1x devices */ |
| 119 | #define F_20 0x10 /* file built for TMS320C2x devices */ |
| 120 | #define F_25 0x20 /* file built for TMS320C2x/C5x devices */ |
| 121 | #define F_LENDIAN 0x0100 /* 16 bits/word, LSB first */ |
| 122 | #define F_SYMMERGE 0x1000 /* duplicate symbols were removed */ |
| 123 | |
| 124 | /********************** OPTIONAL HEADER **********************/ |
| 125 | |
| 126 | |
| 127 | typedef struct |
| 128 | { |
| 129 | char magic[2]; /* type of file (0x108) */ |
| 130 | char vstamp[2]; /* version stamp */ |
| 131 | char tsize[4]; /* text size in bytes, padded to FW bdry*/ |
| 132 | char dsize[4]; /* initialized data " " */ |
| 133 | char bsize[4]; /* uninitialized data " " */ |
| 134 | char entry[4]; /* entry pt. */ |
| 135 | char text_start[4]; /* base of text used for this file */ |
| 136 | char data_start[4]; /* base of data used for this file */ |
| 137 | } |
| 138 | AOUTHDR; |
| 139 | |
| 140 | |
| 141 | #define AOUTHDRSZ 28 |
| 142 | #define AOUTSZ 28 |
| 143 | |
| 144 | |
| 145 | /********************** SECTION HEADER **********************/ |
| 146 | /* COFF0, COFF1 */ |
| 147 | struct external_scnhdr_v01 { |
| 148 | char s_name[8]; /* section name */ |
| 149 | char s_paddr[4]; /* physical address, aliased s_nlib */ |
| 150 | char s_vaddr[4]; /* virtual address */ |
| 151 | char s_size[4]; /* section size (in WORDS) */ |
| 152 | char s_scnptr[4]; /* file ptr to raw data for section */ |
| 153 | char s_relptr[4]; /* file ptr to relocation */ |
| 154 | char s_lnnoptr[4]; /* file ptr to line numbers */ |
| 155 | char s_nreloc[2]; /* number of relocation entries */ |
| 156 | char s_nlnno[2]; /* number of line number entries*/ |
| 157 | char s_flags[2]; /* flags */ |
| 158 | char s_reserved[1]; /* reserved */ |
| 159 | char s_page[1]; /* section page number (LOAD) */ |
| 160 | }; |
| 161 | |
| 162 | /* COFF2 */ |
| 163 | struct external_scnhdr { |
| 164 | char s_name[8]; /* section name */ |
| 165 | char s_paddr[4]; /* physical address, aliased s_nlib */ |
| 166 | char s_vaddr[4]; /* virtual address */ |
| 167 | char s_size[4]; /* section size (in WORDS) */ |
| 168 | char s_scnptr[4]; /* file ptr to raw data for section */ |
| 169 | char s_relptr[4]; /* file ptr to relocation */ |
| 170 | char s_lnnoptr[4]; /* file ptr to line numbers */ |
| 171 | char s_nreloc[4]; /* number of relocation entries */ |
| 172 | char s_nlnno[4]; /* number of line number entries*/ |
| 173 | char s_flags[4]; /* flags */ |
| 174 | char s_reserved[2]; /* reserved */ |
| 175 | char s_page[2]; /* section page number (LOAD) */ |
| 176 | }; |
| 177 | |
| 178 | /* |
| 179 | * Special section flags |
| 180 | */ |
| 181 | |
| 182 | /* TI COFF defines these flags; |
| 183 | STYP_CLINK: the section should be excluded from the final |
| 184 | linker output if there are no references found to any symbol in the section |
| 185 | STYP_BLOCK: the section should be blocked, i.e. if the section would cross |
| 186 | a page boundary, it is started at a page boundary instead. |
| 187 | TI COFF puts the section alignment power of two in the section flags |
| 188 | e.g. 2**N is alignment, flags |= (N & 0xF) << 8 |
| 189 | */ |
| 190 | #define STYP_CLINK (0x4000) |
| 191 | #define STYP_BLOCK (0x1000) |
| 192 | #define STYP_ALIGN (0x0F00) /* TI COFF stores section alignment here */ |
| 193 | |
| 194 | #define SCNHDR_V01 struct external_scnhdr_v01 |
| 195 | #define SCNHDR struct external_scnhdr |
| 196 | #define SCNHSZ_V01 40 /* for v0 and v1 */ |
| 197 | #define SCNHSZ 48 |
| 198 | |
| 199 | /* COFF2 changes the offsets and sizes of these fields |
| 200 | Assume we're dealing with the COFF2 scnhdr structure, and adjust |
| 201 | accordingly |
| 202 | */ |
| 203 | #define GET_SCNHDR_NRELOC(ABFD,PTR) \ |
| 204 | (COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, PTR)) |
| 205 | #define PUT_SCNHDR_NRELOC(ABFD,VAL,PTR) \ |
| 206 | (COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,PTR)) |
| 207 | #define GET_SCNHDR_NLNNO(ABFD,PTR) \ |
| 208 | (COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-2)) |
| 209 | #define PUT_SCNHDR_NLNNO(ABFD,VAL,PTR) \ |
| 210 | (COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-2)) |
| 211 | #define GET_SCNHDR_FLAGS(ABFD,PTR) \ |
| 212 | (COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-4)) |
| 213 | #define PUT_SCNHDR_FLAGS(ABFD,VAL,PTR) \ |
| 214 | (COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-4)) |
| 215 | #define GET_SCNHDR_PAGE(ABFD,PTR) \ |
| 216 | (COFF2_P(ABFD) ? bfd_h_get_16 (ABFD,PTR) : bfd_h_get_8 (ABFD, (PTR)-7)) |
| 217 | /* on output, make sure that the "reserved" field is zero */ |
| 218 | #define PUT_SCNHDR_PAGE(ABFD,VAL,PTR) \ |
| 219 | (COFF2_P(ABFD) ? bfd_h_put_16 (ABFD,VAL,PTR) : \ |
| 220 | bfd_h_put_8 (ABFD,VAL,(PTR)-7), bfd_h_put_8 (ABFD, 0, (PTR)-8)) |
| 221 | |
| 222 | /* TI COFF stores section size as number of bytes (address units, not octets), |
| 223 | so adjust to be number of octets, which is what BFD expects */ |
| 224 | #define GET_SCNHDR_SIZE(ABFD,SZP) \ |
| 225 | (bfd_h_get_32(ABFD,SZP)*bfd_octets_per_byte(ABFD)) |
| 226 | #define PUT_SCNHDR_SIZE(ABFD,SZ,SZP) \ |
| 227 | bfd_h_put_32(ABFD,(SZ)/bfd_octets_per_byte(ABFD),SZP) |
| 228 | |
| 229 | #define COFF_ADJUST_SCNHDR_IN_POST(ABFD,EXT,INT) \ |
| 230 | do { ((struct internal_scnhdr *)(INT))->s_page = \ |
| 231 | GET_SCNHDR_PAGE(ABFD,(bfd_byte *)((SCNHDR *)(EXT))->s_page); \ |
| 232 | } while(0) |
| 233 | |
| 234 | /* The line number and reloc overflow checking in coff_swap_scnhdr_out in |
| 235 | coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc. |
| 236 | Due to different sized v0/v1/v2 section headers, we have to re-write these |
| 237 | fields. |
| 238 | */ |
| 239 | #define COFF_ADJUST_SCNHDR_OUT_POST(ABFD,INT,EXT) \ |
| 240 | do { \ |
| 241 | PUT_SCNHDR_NLNNO(ABFD,((struct internal_scnhdr *)(INT))->s_nlnno,\ |
| 242 | (bfd_byte *)((SCNHDR *)(EXT))->s_nlnno); \ |
| 243 | PUT_SCNHDR_NRELOC(ABFD,((struct internal_scnhdr *)(INT))->s_nreloc,\ |
| 244 | (bfd_byte *)((SCNHDR *)(EXT))->s_nreloc); \ |
| 245 | PUT_SCNHDR_FLAGS(ABFD,((struct internal_scnhdr *)(INT))->s_flags, \ |
| 246 | (bfd_byte *)((SCNHDR *)(EXT))->s_flags); \ |
| 247 | PUT_SCNHDR_PAGE(ABFD,((struct internal_scnhdr *)(INT))->s_page, \ |
| 248 | (bfd_byte *)((SCNHDR *)(EXT))->s_page); \ |
| 249 | } while(0) |
| 250 | |
| 251 | /* Page macros |
| 252 | |
| 253 | The first GDB port requires flags in its remote memory access commands to |
| 254 | distinguish between data/prog space. Hopefully we can make this go away |
| 255 | eventually. Stuff the page in the upper bits of a 32-bit address, since |
| 256 | the c5x family only uses 16 or 23 bits. |
| 257 | |
| 258 | c2x, c5x and most c54x devices have 16-bit addresses, but the c548 has |
| 259 | 23-bit program addresses. Make sure the page flags don't interfere. |
| 260 | These flags are used by GDB to identify the destination page for |
| 261 | addresses. |
| 262 | */ |
| 263 | |
| 264 | /* recognized load pages */ |
| 265 | #define PG_PROG 0x0 /* PROG page */ |
| 266 | #define PG_DATA 0x1 /* DATA page */ |
| 267 | |
| 268 | #define ADDR_MASK 0x00FFFFFF |
| 269 | #define PG_TO_FLAG(p) (((unsigned long)(p) & 0xFF) << 24) |
| 270 | #define FLAG_TO_PG(f) (((f) >> 24) & 0xFF) |
| 271 | |
| 272 | /* |
| 273 | * names of "special" sections |
| 274 | */ |
| 275 | #define _TEXT ".text" |
| 276 | #define _DATA ".data" |
| 277 | #define _BSS ".bss" |
| 278 | #define _CINIT ".cinit" /* initialized C data */ |
| 279 | #define _SCONST ".const" /* constants */ |
| 280 | #define _SWITCH ".switch" /* switch tables */ |
| 281 | #define _STACK ".stack" /* C stack */ |
| 282 | #define _SYSMEM ".sysmem" /* used for malloc et al. syscalls */ |
| 283 | |
| 284 | /********************** LINE NUMBERS **********************/ |
| 285 | |
| 286 | /* 1 line number entry for every "breakpointable" source line in a section. |
| 287 | * Line numbers are grouped on a per function basis; first entry in a function |
| 288 | * grouping will have l_lnno = 0 and in place of physical address will be the |
| 289 | * symbol table index of the function name. |
| 290 | */ |
| 291 | struct external_lineno { |
| 292 | union { |
| 293 | char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ |
| 294 | char l_paddr[4]; /* (physical) address of line number */ |
| 295 | } l_addr; |
| 296 | char l_lnno[2]; /* line number */ |
| 297 | }; |
| 298 | |
| 299 | #define LINENO struct external_lineno |
| 300 | #define LINESZ 6 |
| 301 | |
| 302 | |
| 303 | /********************** SYMBOLS **********************/ |
| 304 | |
| 305 | /* NOTE: this is what a local label looks like in assembly source; what it |
| 306 | looks like in COFF output is undefined */ |
| 307 | #define TICOFF_LOCAL_LABEL_P(NAME) \ |
| 308 | ((NAME[0] == '$' && NAME[1] >= '0' && NAME[1] <= '9' && NAME[2] == '\0') \ |
| 309 | || NAME[strlen(NAME)-1] == '?') |
| 310 | |
| 311 | #define E_SYMNMLEN 8 /* # characters in a symbol name */ |
| 312 | #define E_FILNMLEN 14 /* # characters in a file name */ |
| 313 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
| 314 | |
| 315 | struct external_syment |
| 316 | { |
| 317 | union { |
| 318 | char e_name[E_SYMNMLEN]; |
| 319 | struct { |
| 320 | char e_zeroes[4]; |
| 321 | char e_offset[4]; |
| 322 | } e; |
| 323 | } e; |
| 324 | char e_value[4]; |
| 325 | char e_scnum[2]; |
| 326 | char e_type[2]; |
| 327 | char e_sclass[1]; |
| 328 | char e_numaux[1]; |
| 329 | }; |
| 330 | |
| 331 | |
| 332 | #define N_BTMASK (017) |
| 333 | #define N_TMASK (060) |
| 334 | #define N_BTSHFT (4) |
| 335 | #define N_TSHIFT (2) |
| 336 | |
| 337 | |
| 338 | union external_auxent { |
| 339 | struct { |
| 340 | char x_tagndx[4]; /* str, un, or enum tag indx */ |
| 341 | union { |
| 342 | struct { |
| 343 | char x_lnno[2]; /* declaration line number */ |
| 344 | char x_size[2]; /* str/union/array size */ |
| 345 | } x_lnsz; |
| 346 | char x_fsize[4]; /* size of function */ |
| 347 | } x_misc; |
| 348 | union { |
| 349 | struct { /* if ISFCN, tag, or .bb */ |
| 350 | char x_lnnoptr[4]; /* ptr to fcn line # */ |
| 351 | char x_endndx[4]; /* entry ndx past block end */ |
| 352 | } x_fcn; |
| 353 | struct { /* if ISARY, up to 4 dimen. */ |
| 354 | char x_dimen[E_DIMNUM][2]; |
| 355 | } x_ary; |
| 356 | } x_fcnary; |
| 357 | char x_tvndx[2]; /* tv index */ |
| 358 | } x_sym; |
| 359 | |
| 360 | union { |
| 361 | char x_fname[E_FILNMLEN]; |
| 362 | struct { |
| 363 | char x_zeroes[4]; |
| 364 | char x_offset[4]; |
| 365 | } x_n; |
| 366 | } x_file; |
| 367 | |
| 368 | struct { |
| 369 | char x_scnlen[4]; /* section length */ |
| 370 | char x_nreloc[2]; /* # relocation entries */ |
| 371 | char x_nlinno[2]; /* # line numbers */ |
| 372 | } x_scn; |
| 373 | |
| 374 | struct { |
| 375 | char x_tvfill[4]; /* tv fill value */ |
| 376 | char x_tvlen[2]; /* length of .tv */ |
| 377 | char x_tvran[2][2]; /* tv range */ |
| 378 | } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
| 379 | |
| 380 | |
| 381 | }; |
| 382 | |
| 383 | #define SYMENT struct external_syment |
| 384 | #define SYMESZ 18 |
| 385 | #define AUXENT union external_auxent |
| 386 | #define AUXESZ 18 |
| 387 | |
| 388 | /* section lengths are in target bytes (not host bytes) */ |
| 389 | #define GET_SCN_SCNLEN(ABFD,EXT) \ |
| 390 | (bfd_h_get_32(ABFD,(bfd_byte *)(EXT)->x_scn.x_scnlen)*bfd_octets_per_byte(ABFD)) |
| 391 | #define PUT_SCN_SCNLEN(ABFD,INT,EXT) \ |
| 392 | bfd_h_put_32(ABFD,(INT)/bfd_octets_per_byte(ABFD),\ |
| 393 | (bfd_byte *)(EXT)->x_scn.x_scnlen) |
| 394 | |
| 395 | /* lnsz size is in bits in COFF file, in bytes in BFD */ |
| 396 | #define GET_LNSZ_SIZE(abfd, ext) \ |
| 397 | (bfd_h_get_16(abfd, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_size) / \ |
| 398 | (class != C_FIELD ? 8 : 1)) |
| 399 | |
| 400 | #define PUT_LNSZ_SIZE(abfd, in, ext) \ |
| 401 | bfd_h_put_16(abfd, ((class != C_FIELD) ? (in)*8 : (in)), \ |
| 402 | (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size) |
| 403 | |
| 404 | /* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes */ |
| 405 | #define COFF_ADJUST_SYM_IN_POST(ABFD,EXT,INT) \ |
| 406 | do { struct internal_syment *dst = (struct internal_syment *)(INT); \ |
| 407 | if (dst->n_sclass == C_MOS || dst->n_sclass == C_MOU) dst->n_value /= 8; \ |
| 408 | } while (0) |
| 409 | |
| 410 | #define COFF_ADJUST_SYM_OUT_POST(ABFD,INT,EXT) \ |
| 411 | do { struct internal_syment *src = (struct internal_syment *)(INT); \ |
| 412 | SYMENT *dst = (SYMENT *)(EXT); \ |
| 413 | if(src->n_sclass == C_MOU || src->n_sclass == C_MOS) \ |
| 414 | bfd_h_put_32(abfd,src->n_value * 8,(bfd_byte *)dst->e_value); \ |
| 415 | } while (0) |
| 416 | |
| 417 | /* Detect section-relative absolute symbols so they get flagged with a sym |
| 418 | index of -1. |
| 419 | */ |
| 420 | #define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC,SECT) \ |
| 421 | ((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \ |
| 422 | && (RELOC)->howto->name[0] == 'A') |
| 423 | |
| 424 | /********************** RELOCATION DIRECTIVES **********************/ |
| 425 | |
| 426 | struct external_reloc_v0 |
| 427 | { |
| 428 | char r_vaddr[4]; |
| 429 | char r_symndx[2]; |
| 430 | char r_reserved[2]; |
| 431 | char r_type[2]; |
| 432 | }; |
| 433 | |
| 434 | struct external_reloc |
| 435 | { |
| 436 | char r_vaddr[4]; |
| 437 | char r_symndx[4]; |
| 438 | char r_reserved[2]; /* extended pmad byte for COFF2 */ |
| 439 | char r_type[2]; |
| 440 | }; |
| 441 | |
| 442 | #define RELOC struct external_reloc |
| 443 | #define RELSZ_V0 10 /* FIXME -- coffcode.h needs fixing */ |
| 444 | #define RELSZ 12 /* for COFF1/2 */ |
| 445 | |
| 446 | /* various relocation types. */ |
| 447 | #define R_ABS 0x0000 /* no relocation */ |
| 448 | #define R_REL13 0x002A /* 13-bit direct reference (???) */ |
| 449 | #define R_PARTLS7 0x0028 /* 7 LSBs of an address */ |
| 450 | #define R_PARTMS9 0x0029 /* 9MSBs of an address */ |
| 451 | #define R_EXTWORD 0x002B /* 23-bit direct reference */ |
| 452 | #define R_EXTWORD16 0x002C /* 16-bit direct reference to 23-bit addr*/ |
| 453 | #define R_EXTWORDMS7 0x002D /* upper 7 bits of 23-bit address */ |
| 454 | |
| 455 | #endif /* COFF_TI_H */ |