include/coff/ti.h

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