bfd/coff-tic80.c

   1 /* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP).
   2    Copyright 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
   3    2012  Free Software Foundation, Inc.
   4
   5    Written by Fred Fish (fnf@cygnus.com)
   6
   7    There is nothing new under the sun. This file draws a lot on other
   8    coff files.
   9
  10    This file is part of BFD, the Binary File Descriptor library.
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program; if not, write to the Free Software
  24    Foundation, 51 Franklin Street - Fifth Floor,
  25    Boston, MA 02110-1301, USA.  */
  26
  27 #include "sysdep.h"
  28 #include "bfd.h"
  29 #include "bfdlink.h"
  30 #include "libbfd.h"
  31 #ifdef _CONST
  32 /* Newlib-based hosts define _CONST as a STDC-safe alias for const,
  33   but to the tic80 toolchain it means something altogether different.
  34   Since sysdep.h will have pulled in stdio.h and hence _ansi.h which
  35   contains this definition, we must undef it before including the
  36   tic80-specific definition. */
  37 #undef _CONST
  38 #endif /* _CONST */
  39 #include "coff/tic80.h"
  40 #include "coff/internal.h"
  41 #include "libcoff.h"
  42
  43 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
  44 #define COFF_ALIGN_IN_SECTION_HEADER 1
  45 #define COFF_ALIGN_IN_SFLAGS 1
  46
  47 #define GET_SCNHDR_FLAGS H_GET_16
  48 #define PUT_SCNHDR_FLAGS H_PUT_16
  49
  50 static bfd_reloc_status_type ppbase_reloc
  51   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  52 static bfd_reloc_status_type glob15_reloc
  53   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  54 static bfd_reloc_status_type glob16_reloc
  55   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  56 static bfd_reloc_status_type local16_reloc
  57   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  58
  59
  60 static reloc_howto_type tic80_howto_table[] =
  61 {
  62
  63   HOWTO (R_RELLONG,                     /* type */
  64          0,                             /* rightshift */
  65          2,                             /* size (0 = byte, 1 = short, 2 = long) */
  66          32,                            /* bitsize */
  67          FALSE,                         /* pc_relative */
  68          0,                             /* bitpos */
  69          complain_overflow_bitfield,    /* complain_on_overflow */
  70          NULL,                          /* special_function */
  71          "RELLONG",                     /* name */
  72          TRUE,                          /* partial_inplace */
  73          0xffffffff,                    /* src_mask */
  74          0xffffffff,                    /* dst_mask */
  75          FALSE),                        /* pcrel_offset */
  76
  77   HOWTO (R_MPPCR,                       /* type */
  78          2,                             /* rightshift */
  79          2,                             /* size (0 = byte, 1 = short, 2 = long) */
  80          32,                            /* bitsize */
  81          TRUE,                          /* pc_relative */
  82          0,                             /* bitpos */
  83          complain_overflow_signed,      /* complain_on_overflow */
  84          NULL,                          /* special_function */
  85          "MPPCR",                       /* name */
  86          TRUE,                          /* partial_inplace */
  87          0xffffffff,                    /* src_mask */
  88          0xffffffff,                    /* dst_mask */
  89          TRUE),                         /* pcrel_offset */
  90
  91   HOWTO (R_ABS,                         /* type */
  92          0,                             /* rightshift */
  93          2,                             /* size (0 = byte, 1 = short, 2 = long) */
  94          32,                            /* bitsize */
  95          FALSE,                         /* pc_relative */
  96          0,                             /* bitpos */
  97          complain_overflow_bitfield,    /* complain_on_overflow */
  98          NULL,                          /* special_function */
  99          "ABS",                         /* name */
 100          TRUE,                          /* partial_inplace */
 101          0xffffffff,                    /* src_mask */
 102          0xffffffff,                    /* dst_mask */
 103          FALSE),                                /* pcrel_offset */
 104
 105   HOWTO (R_PPBASE,                      /* type */
 106          0,                             /* rightshift */
 107          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 108          32,                            /* bitsize */
 109          FALSE,                         /* pc_relative */
 110          0,                             /* bitpos */
 111          complain_overflow_dont,        /* complain_on_overflow */
 112          ppbase_reloc,                  /* special_function */
 113          "PPBASE",                      /* name */
 114          TRUE,                          /* partial_inplace */
 115          0xffffffff,                    /* src_mask */
 116          0xffffffff,                    /* dst_mask */
 117          FALSE),                        /* pcrel_offset */
 118
 119   HOWTO (R_PPLBASE,                     /* type */
 120          0,                             /* rightshift */
 121          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 122          32,                            /* bitsize */
 123          FALSE,                         /* pc_relative */
 124          0,                             /* bitpos */
 125          complain_overflow_dont,        /* complain_on_overflow */
 126          ppbase_reloc,                  /* special_function */
 127          "PPLBASE",                     /* name */
 128          TRUE,                          /* partial_inplace */
 129          0xffffffff,                    /* src_mask */
 130          0xffffffff,                    /* dst_mask */
 131          FALSE),                        /* pcrel_offset */
 132
 133   HOWTO (R_PP15,                        /* type */
 134          0,                             /* rightshift */
 135          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 136          15,                            /* bitsize */
 137          FALSE,                         /* pc_relative */
 138          6,                             /* bitpos */
 139          complain_overflow_dont,        /* complain_on_overflow */
 140          glob15_reloc,                  /* special_function */
 141          "PP15",                        /* name */
 142          TRUE,                          /* partial_inplace */
 143          0x1ffc0,                       /* src_mask */
 144          0x1ffc0,                       /* dst_mask */
 145          FALSE),                        /* pcrel_offset */
 146
 147   HOWTO (R_PP15W,                       /* type */
 148          2,                             /* rightshift */
 149          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 150          15,                            /* bitsize */
 151          FALSE,                         /* pc_relative */
 152          6,                             /* bitpos */
 153          complain_overflow_dont,        /* complain_on_overflow */
 154          glob15_reloc,                  /* special_function */
 155          "PP15W",                       /* name */
 156          TRUE,                          /* partial_inplace */
 157          0x1ffc0,                       /* src_mask */
 158          0x1ffc0,                       /* dst_mask */
 159          FALSE),                        /* pcrel_offset */
 160
 161   HOWTO (R_PP15H,                       /* type */
 162          1,                             /* rightshift */
 163          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 164          15,                            /* bitsize */
 165          FALSE,                         /* pc_relative */
 166          6,                             /* bitpos */
 167          complain_overflow_dont,        /* complain_on_overflow */
 168          glob15_reloc,                  /* special_function */
 169          "PP15H",                       /* name */
 170          TRUE,                          /* partial_inplace */
 171          0x1ffc0,                       /* src_mask */
 172          0x1ffc0,                       /* dst_mask */
 173          FALSE),                        /* pcrel_offset */
 174
 175   HOWTO (R_PP16B,                       /* type */
 176          0,                             /* rightshift */
 177          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 178          16,                            /* bitsize */
 179          FALSE,                         /* pc_relative */
 180          6,                             /* bitpos */
 181          complain_overflow_dont,        /* complain_on_overflow */
 182          glob16_reloc,                  /* special_function */
 183          "PP16B",                       /* name */
 184          TRUE,                          /* partial_inplace */
 185          0x3ffc0,                       /* src_mask */
 186          0x3ffc0,                       /* dst_mask */
 187          FALSE),                        /* pcrel_offset */
 188
 189   HOWTO (R_PPL15,                       /* type */
 190          0,                             /* rightshift */
 191          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 192          15,                            /* bitsize */
 193          FALSE,                         /* pc_relative */
 194          0,                             /* bitpos */
 195          complain_overflow_dont,        /* complain_on_overflow */
 196          NULL,                          /* special_function */
 197          "PPL15",                       /* name */
 198          TRUE,                          /* partial_inplace */
 199          0x7fff,                        /* src_mask */
 200          0x7fff,                        /* dst_mask */
 201          FALSE),                        /* pcrel_offset */
 202
 203   HOWTO (R_PPL15W,                      /* type */
 204          2,                             /* rightshift */
 205          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 206          15,                            /* bitsize */
 207          FALSE,                         /* pc_relative */
 208          0,                             /* bitpos */
 209          complain_overflow_dont,        /* complain_on_overflow */
 210          NULL,                          /* special_function */
 211          "PPL15W",                      /* name */
 212          TRUE,                          /* partial_inplace */
 213          0x7fff,                        /* src_mask */
 214          0x7fff,                        /* dst_mask */
 215          FALSE),                        /* pcrel_offset */
 216
 217   HOWTO (R_PPL15H,                      /* type */
 218          1,                             /* rightshift */
 219          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 220          15,                            /* bitsize */
 221          FALSE,                         /* pc_relative */
 222          0,                             /* bitpos */
 223          complain_overflow_dont,        /* complain_on_overflow */
 224          NULL,                          /* special_function */
 225          "PPL15H",                      /* name */
 226          TRUE,                          /* partial_inplace */
 227          0x7fff,                        /* src_mask */
 228          0x7fff,                        /* dst_mask */
 229          FALSE),                        /* pcrel_offset */
 230
 231   HOWTO (R_PPL16B,                      /* type */
 232          0,                             /* rightshift */
 233          2,                             /* size (0 = byte, 1 = short, 2 = long) */
 234          16,                            /* bitsize */
 235          FALSE,                         /* pc_relative */
 236          0,                             /* bitpos */
 237          complain_overflow_dont,        /* complain_on_overflow */
 238          local16_reloc,                 /* special_function */
 239          "PPL16B",                      /* name */
 240          TRUE,                          /* partial_inplace */
 241          0xffff,                        /* src_mask */
 242          0xffff,                        /* dst_mask */
 243          FALSE),                        /* pcrel_offset */
 244
 245   HOWTO (R_PPN15,                       /* type */
 246          0,                             /* rightshift */
 247          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 248          15,                            /* bitsize */
 249          FALSE,                         /* pc_relative */
 250          6,                             /* bitpos */
 251          complain_overflow_dont,        /* complain_on_overflow */
 252          glob15_reloc,                  /* special_function */
 253          "PPN15",                       /* name */
 254          TRUE,                          /* partial_inplace */
 255          0x1ffc0,                       /* src_mask */
 256          0x1ffc0,                       /* dst_mask */
 257          FALSE),                        /* pcrel_offset */
 258
 259   HOWTO (R_PPN15W,                      /* type */
 260          2,                             /* rightshift */
 261          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 262          15,                            /* bitsize */
 263          FALSE,                         /* pc_relative */
 264          6,                             /* bitpos */
 265          complain_overflow_dont,        /* complain_on_overflow */
 266          glob15_reloc,                  /* special_function */
 267          "PPN15W",                      /* name */
 268          TRUE,                          /* partial_inplace */
 269          0x1ffc0,                       /* src_mask */
 270          0x1ffc0,                       /* dst_mask */
 271          FALSE),                        /* pcrel_offset */
 272
 273   HOWTO (R_PPN15H,                      /* type */
 274          1,                             /* rightshift */
 275          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 276          15,                            /* bitsize */
 277          FALSE,                         /* pc_relative */
 278          6,                             /* bitpos */
 279          complain_overflow_dont,        /* complain_on_overflow */
 280          glob15_reloc,                  /* special_function */
 281          "PPN15H",                      /* name */
 282          TRUE,                          /* partial_inplace */
 283          0x1ffc0,                       /* src_mask */
 284          0x1ffc0,                       /* dst_mask */
 285          FALSE),                        /* pcrel_offset */
 286
 287   HOWTO (R_PPN16B,                      /* type */
 288          0,                             /* rightshift */
 289          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 290          16,                            /* bitsize */
 291          FALSE,                         /* pc_relative */
 292          6,                             /* bitpos */
 293          complain_overflow_dont,        /* complain_on_overflow */
 294          glob16_reloc,                  /* special_function */
 295          "PPN16B",                      /* name */
 296          TRUE,                          /* partial_inplace */
 297          0x3ffc0,                       /* src_mask */
 298          0x3ffc0,                       /* dst_mask */
 299          FALSE),                        /* pcrel_offset */
 300
 301   HOWTO (R_PPLN15,                      /* type */
 302          0,                             /* rightshift */
 303          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 304          15,                            /* bitsize */
 305          FALSE,                         /* pc_relative */
 306          0,                             /* bitpos */
 307          complain_overflow_dont,        /* complain_on_overflow */
 308          NULL,                          /* special_function */
 309          "PPLN15",                      /* name */
 310          TRUE,                          /* partial_inplace */
 311          0x7fff,                        /* src_mask */
 312          0x7fff,                        /* dst_mask */
 313          FALSE),                        /* pcrel_offset */
 314
 315   HOWTO (R_PPLN15W,                     /* type */
 316          2,                             /* rightshift */
 317          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 318          15,                            /* bitsize */
 319          FALSE,                         /* pc_relative */
 320          0,                             /* bitpos */
 321          complain_overflow_dont,        /* complain_on_overflow */
 322          NULL,                          /* special_function */
 323          "PPLN15W",                     /* name */
 324          TRUE,                          /* partial_inplace */
 325          0x7fff,                        /* src_mask */
 326          0x7fff,                        /* dst_mask */
 327          FALSE),                        /* pcrel_offset */
 328
 329   HOWTO (R_PPLN15H,                     /* type */
 330          1,                             /* rightshift */
 331          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 332          15,                            /* bitsize */
 333          FALSE,                         /* pc_relative */
 334          0,                             /* bitpos */
 335          complain_overflow_dont,        /* complain_on_overflow */
 336          NULL,                          /* special_function */
 337          "PPLN15H",                     /* name */
 338          TRUE,                          /* partial_inplace */
 339          0x7fff,                        /* src_mask */
 340          0x7fff,                        /* dst_mask */
 341          FALSE),                        /* pcrel_offset */
 342
 343   HOWTO (R_PPLN16B,                     /* type */
 344          0,                             /* rightshift */
 345          -2,                            /* size (0 = byte, 1 = short, 2 = long) */
 346          15,                            /* bitsize */
 347          FALSE,                         /* pc_relative */
 348          0,                             /* bitpos */
 349          complain_overflow_dont,        /* complain_on_overflow */
 350          local16_reloc,                 /* special_function */
 351          "PPLN16B",                     /* name */
 352          TRUE,                          /* partial_inplace */
 353          0xffff,                        /* src_mask */
 354          0xffff,                        /* dst_mask */
 355          FALSE)                         /* pcrel_offset */
 356 };
 357 \f
 358 /* Special relocation functions, used when the output file is not
 359    itself a COFF TIc80 file.  */
 360
 361 /* This special function is used for the base address type
 362    relocations.  */
 363
 364 static bfd_reloc_status_type
 365 ppbase_reloc (bfd *abfd ATTRIBUTE_UNUSED,
 366               arelent *reloc_entry ATTRIBUTE_UNUSED,
 367               asymbol *symbol_in ATTRIBUTE_UNUSED,
 368               void * data ATTRIBUTE_UNUSED,
 369               asection *input_section ATTRIBUTE_UNUSED,
 370               bfd *output_bfd ATTRIBUTE_UNUSED,
 371               char **error_message ATTRIBUTE_UNUSED)
 372 {
 373   /* FIXME.  */
 374   abort ();
 375 }
 376
 377 /* This special function is used for the global 15 bit relocations.  */
 378
 379 static bfd_reloc_status_type
 380 glob15_reloc (bfd *abfd ATTRIBUTE_UNUSED,
 381               arelent *reloc_entry ATTRIBUTE_UNUSED,
 382               asymbol *symbol_in ATTRIBUTE_UNUSED,
 383               void * data ATTRIBUTE_UNUSED,
 384               asection *input_section ATTRIBUTE_UNUSED,
 385               bfd *output_bfd ATTRIBUTE_UNUSED,
 386               char **error_message ATTRIBUTE_UNUSED)
 387 {
 388   /* FIXME.  */
 389   abort ();
 390 }
 391
 392 /* This special function is used for the global 16 bit relocations.  */
 393
 394 static bfd_reloc_status_type
 395 glob16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
 396               arelent *reloc_entry ATTRIBUTE_UNUSED,
 397               asymbol *symbol_in ATTRIBUTE_UNUSED,
 398               void * data ATTRIBUTE_UNUSED,
 399               asection *input_section ATTRIBUTE_UNUSED,
 400               bfd *output_bfd ATTRIBUTE_UNUSED,
 401               char **error_message ATTRIBUTE_UNUSED)
 402 {
 403   /* FIXME.  */
 404   abort ();
 405 }
 406
 407 /* This special function is used for the local 16 bit relocations.  */
 408
 409 static bfd_reloc_status_type
 410 local16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
 411                arelent *reloc_entry ATTRIBUTE_UNUSED,
 412                asymbol *symbol_in ATTRIBUTE_UNUSED,
 413                void * data ATTRIBUTE_UNUSED,
 414                asection *input_section ATTRIBUTE_UNUSED,
 415                bfd *output_bfd ATTRIBUTE_UNUSED,
 416                char **error_message ATTRIBUTE_UNUSED)
 417 {
 418   /* FIXME.  */
 419   abort ();
 420 }
 421 \f
 422 /* Code to turn an external r_type into a pointer to an entry in the howto_table.
 423    If passed an r_type we don't recognize the abort rather than silently failing
 424    to generate an output file.  */
 425
 426 static void
 427 rtype2howto (arelent *cache_ptr, struct internal_reloc *dst)
 428 {
 429   unsigned int i;
 430
 431   for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
 432     {
 433       if (tic80_howto_table[i].type == dst->r_type)
 434         {
 435           cache_ptr->howto = tic80_howto_table + i;
 436           return;
 437         }
 438     }
 439
 440   (*_bfd_error_handler) (_("Unrecognized reloc type 0x%x"),
 441                          (unsigned int) dst->r_type);
 442   cache_ptr->howto = tic80_howto_table + 0;
 443 }
 444
 445 #define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
 446 #define coff_rtype_to_howto coff_tic80_rtype_to_howto
 447
 448 static reloc_howto_type *
 449 coff_tic80_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
 450                            asection *sec,
 451                            struct internal_reloc *rel,
 452                            struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
 453                            struct internal_syment *sym ATTRIBUTE_UNUSED,
 454                            bfd_vma *addendp)
 455 {
 456   arelent genrel;
 457
 458   if (rel -> r_symndx == -1 && addendp != NULL)
 459     {
 460       /* This is a TI "internal relocation", which means that the relocation
 461          amount is the amount by which the current section is being relocated
 462          in the output section.  */
 463       *addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma;
 464     }
 465   RTYPE2HOWTO (&genrel, rel);
 466   return genrel.howto;
 467 }
 468
 469 #ifndef BADMAG
 470 #define BADMAG(x) TIC80BADMAG(x)
 471 #endif
 472 \f
 473 #define coff_relocate_section coff_tic80_relocate_section
 474
 475 /* We need a special relocation routine to handle the PP relocs.  Most
 476    of this is a copy of _bfd_coff_generic_relocate_section.  */
 477
 478 static bfd_boolean
 479 coff_tic80_relocate_section (bfd *output_bfd,
 480                              struct bfd_link_info *info,
 481                              bfd *input_bfd,
 482                              asection *input_section,
 483                              bfd_byte *contents,
 484                              struct internal_reloc *relocs,
 485                              struct internal_syment *syms,
 486                              asection **sections)
 487 {
 488   struct internal_reloc *rel;
 489   struct internal_reloc *relend;
 490
 491   rel = relocs;
 492   relend = rel + input_section->reloc_count;
 493   for (; rel < relend; rel++)
 494     {
 495       long symndx;
 496       struct coff_link_hash_entry *h;
 497       struct internal_syment *sym;
 498       bfd_vma addend;
 499       bfd_vma val;
 500       reloc_howto_type *howto;
 501       bfd_reloc_status_type rstat;
 502       bfd_vma addr;
 503
 504       symndx = rel->r_symndx;
 505
 506       if (symndx == -1)
 507         {
 508           h = NULL;
 509           sym = NULL;
 510         }
 511       else
 512         {
 513           h = obj_coff_sym_hashes (input_bfd)[symndx];
 514           sym = syms + symndx;
 515         }
 516
 517       /* COFF treats common symbols in one of two ways.  Either the
 518          size of the symbol is included in the section contents, or it
 519          is not.  We assume that the size is not included, and force
 520          the rtype_to_howto function to adjust the addend as needed.  */
 521
 522       if (sym != NULL && sym->n_scnum != 0)
 523         addend = - sym->n_value;
 524       else
 525         addend = 0;
 526
 527       howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
 528                                        sym, &addend);
 529       if (howto == NULL)
 530         return FALSE;
 531
 532       val = 0;
 533
 534       if (h == NULL)
 535         {
 536           asection *sec;
 537
 538           if (symndx == -1)
 539             {
 540               sec = bfd_abs_section_ptr;
 541               val = 0;
 542             }
 543           else
 544             {
 545               sec = sections[symndx];
 546               val = (sec->output_section->vma
 547                      + sec->output_offset
 548                      + sym->n_value);
 549               if (! obj_pe (output_bfd))
 550                 val -= sec->vma;
 551             }
 552         }
 553       else
 554         {
 555           if (h->root.type == bfd_link_hash_defined
 556               || h->root.type == bfd_link_hash_defweak)
 557             {
 558               asection *sec;
 559
 560               sec = h->root.u.def.section;
 561               val = (h->root.u.def.value
 562                      + sec->output_section->vma
 563                      + sec->output_offset);
 564               }
 565
 566           else if (! info->relocatable)
 567             {
 568               if (! ((*info->callbacks->undefined_symbol)
 569                      (info, h->root.root.string, input_bfd, input_section,
 570                       rel->r_vaddr - input_section->vma, TRUE)))
 571                 return FALSE;
 572             }
 573         }
 574
 575       addr = rel->r_vaddr - input_section->vma;
 576
 577       /* FIXME: This code assumes little endian, but the PP can
 578          apparently be bi-endian.  I don't know if the bi-endianness
 579          applies to the instruction set or just to the data.  */
 580       switch (howto->type)
 581         {
 582         default:
 583         case R_ABS:
 584         case R_RELLONGX:
 585         case R_PPL15:
 586         case R_PPL15W:
 587         case R_PPL15H:
 588         case R_PPLN15:
 589         case R_PPLN15W:
 590         case R_PPLN15H:
 591           rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
 592                                             contents, addr, val, addend);
 593           break;
 594
 595         case R_PP15:
 596         case R_PP15W:
 597         case R_PP15H:
 598         case R_PPN15:
 599         case R_PPN15W:
 600         case R_PPN15H:
 601           /* Offset the address so that we can use 4 byte relocations.  */
 602           rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
 603                                             contents + 2, addr, val, addend);
 604           break;
 605
 606         case R_PP16B:
 607         case R_PPN16B:
 608           {
 609             /* The most significant bit is stored in bit 6.  */
 610             bfd_byte hold;
 611
 612             hold = contents[addr + 4];
 613             contents[addr + 4] &=~ 0x20;
 614             contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
 615             rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
 616                                               contents + 2, addr,
 617                                               val, addend);
 618             contents[addr] &=~ 0x40;
 619             contents[addr] |= (contents[addr + 4] << 1) & 0x40;
 620             contents[addr + 4] &=~ 0x20;
 621             contents[addr + 4] |= hold & 0x20;
 622             break;
 623           }
 624
 625         case R_PPL16B:
 626         case R_PPLN16B:
 627           {
 628             /* The most significant bit is stored in bit 28.  */
 629             bfd_byte hold;
 630
 631             hold = contents[addr + 1];
 632             contents[addr + 1] &=~ 0x80;
 633             contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
 634             rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
 635                                               contents, addr,
 636                                               val, addend);
 637             contents[addr + 3] &= ~0x10;
 638             contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
 639             contents[addr + 1] &=~ 0x80;
 640             contents[addr + 1] |= hold & 0x80;
 641             break;
 642           }
 643
 644         case R_PPBASE:
 645           /* Parameter RAM is from 0x1000000 to 0x1000800.  */
 646           contents[addr] &=~ 0x3;
 647           if (val >= 0x1000000 && val < 0x1000800)
 648             contents[addr] |= 0x3;
 649           else
 650             contents[addr] |= 0x2;
 651           rstat = bfd_reloc_ok;
 652           break;
 653
 654         case R_PPLBASE:
 655           /* Parameter RAM is from 0x1000000 to 0x1000800.  */
 656           contents[addr + 2] &= ~0xc0;
 657           if (val >= 0x1000000 && val < 0x1000800)
 658             contents[addr + 2] |= 0xc0;
 659           else
 660             contents[addr + 2] |= 0x80;
 661           rstat = bfd_reloc_ok;
 662           break;
 663         }
 664
 665       switch (rstat)
 666         {
 667         default:
 668           abort ();
 669         case bfd_reloc_ok:
 670           break;
 671         case bfd_reloc_outofrange:
 672           (*_bfd_error_handler)
 673             (_("%B: bad reloc address 0x%lx in section `%A'"),
 674              input_bfd, input_section, (unsigned long) rel->r_vaddr);
 675           return FALSE;
 676         case bfd_reloc_overflow:
 677           {
 678             const char *name;
 679             char buf[SYMNMLEN + 1];
 680
 681             if (symndx == -1)
 682               name = "*ABS*";
 683             else if (h != NULL)
 684               name = NULL;
 685             else
 686               {
 687                 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
 688                 if (name == NULL)
 689                   return FALSE;
 690               }
 691
 692             if (! ((*info->callbacks->reloc_overflow)
 693                    (info, (h ? &h->root : NULL), name, howto->name,
 694                     (bfd_vma) 0, input_bfd, input_section,
 695                     rel->r_vaddr - input_section->vma)))
 696               return FALSE;
 697           }
 698         }
 699     }
 700   return TRUE;
 701 }
 702 \f
 703 #define TIC80COFF 1             /* Customize coffcode.h */
 704 #undef C_AUTOARG                /* Clashes with TIc80's C_UEXT */
 705 #undef C_LASTENT                /* Clashes with TIc80's C_STATLAB */
 706
 707 #ifndef bfd_pe_print_pdata
 708 #define bfd_pe_print_pdata      NULL
 709 #endif
 710
 711 #include "coffcode.h"
 712
 713 CREATE_LITTLE_COFF_TARGET_VEC (tic80coff_vec, "coff-tic80", D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)