* i386-tdep.c (i386_reg_struct_return_p): Handle structures with a
[deliverable/binutils-gdb.git] / bfd / coff-tic80.c
index 06c8a2e6d4c82b4514cbd36756034c5bbb123844..ec9cbeef59aaff4ea305ad8699bd2df812514411 100644 (file)
@@ -1,5 +1,6 @@
 /* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP).
-   Copyright 1996 Free Software Foundation, Inc.
+   Copyright 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+   Free Software Foundation, Inc.
 
    Written by Fred Fish (fnf@cygnus.com)
 
@@ -20,4 +21,719 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+Foundation, 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#include "bfd.h"
+#include "bfdlink.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#ifdef _CONST
+/* Newlib-based hosts define _CONST as a STDC-safe alias for const,
+  but to the tic80 toolchain it means something altogether different.
+  Since sysdep.h will have pulled in stdio.h and hence _ansi.h which
+  contains this definition, we must undef it before including the 
+  tic80-specific definition. */
+#undef _CONST
+#endif /* _CONST */
+#include "coff/tic80.h"
+#include "coff/internal.h"
+#include "libcoff.h"
+
+#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
+#define COFF_ALIGN_IN_SECTION_HEADER 1
+#define COFF_ALIGN_IN_SFLAGS 1
+
+#define GET_SCNHDR_FLAGS H_GET_16
+#define PUT_SCNHDR_FLAGS H_PUT_16
+
+static void rtype2howto
+  PARAMS ((arelent *cache_ptr, struct internal_reloc *dst));
+static bfd_reloc_status_type ppbase_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type glob15_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type glob16_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type local16_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_boolean coff_tic80_relocate_section
+  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
+          struct internal_reloc *, struct internal_syment *, asection **));
+static reloc_howto_type * coff_tic80_rtype_to_howto
+  PARAMS ((bfd *, asection *, struct internal_reloc *,
+          struct coff_link_hash_entry *, struct internal_syment *,
+          bfd_vma *));
+
+static reloc_howto_type tic80_howto_table[] =
+{
+
+  HOWTO (R_RELLONG,                    /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        32,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_bitfield,    /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "RELLONG",                     /* name */
+        TRUE,                          /* partial_inplace */
+        0xffffffff,                    /* src_mask */
+        0xffffffff,                    /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_MPPCR,                      /* type */
+        2,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        32,                            /* bitsize */
+        TRUE,                          /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_signed,      /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "MPPCR",                       /* name */
+        TRUE,                          /* partial_inplace */
+        0xffffffff,                    /* src_mask */
+        0xffffffff,                    /* dst_mask */
+        TRUE),                         /* pcrel_offset */
+
+  HOWTO (R_ABS,                                /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        32,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_bitfield,    /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "ABS",                         /* name */
+        TRUE,                          /* partial_inplace */
+        0xffffffff,                    /* src_mask */
+        0xffffffff,                    /* dst_mask */
+        FALSE),                                /* pcrel_offset */
+
+  HOWTO (R_PPBASE,                     /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        32,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        ppbase_reloc,                  /* special_function */
+        "PPBASE",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0xffffffff,                    /* src_mask */
+        0xffffffff,                    /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPLBASE,                    /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        32,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        ppbase_reloc,                  /* special_function */
+        "PPLBASE",                     /* name */
+        TRUE,                          /* partial_inplace */
+        0xffffffff,                    /* src_mask */
+        0xffffffff,                    /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PP15,                       /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob15_reloc,                  /* special_function */
+        "PP15",                        /* name */
+        TRUE,                          /* partial_inplace */
+        0x1ffc0,                       /* src_mask */
+        0x1ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PP15W,                      /* type */
+        2,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob15_reloc,                  /* special_function */
+        "PP15W",                       /* name */
+        TRUE,                          /* partial_inplace */
+        0x1ffc0,                       /* src_mask */
+        0x1ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PP15H,                      /* type */
+        1,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob15_reloc,                  /* special_function */
+        "PP15H",                       /* name */
+        TRUE,                          /* partial_inplace */
+        0x1ffc0,                       /* src_mask */
+        0x1ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PP16B,                      /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        16,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob16_reloc,                  /* special_function */
+        "PP16B",                       /* name */
+        TRUE,                          /* partial_inplace */
+        0x3ffc0,                       /* src_mask */
+        0x3ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPL15,                      /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "PPL15",                       /* name */
+        TRUE,                          /* partial_inplace */
+        0x7fff,                        /* src_mask */
+        0x7fff,                        /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPL15W,                     /* type */
+        2,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "PPL15W",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0x7fff,                        /* src_mask */
+        0x7fff,                        /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPL15H,                     /* type */
+        1,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "PPL15H",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0x7fff,                        /* src_mask */
+        0x7fff,                        /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPL16B,                     /* type */
+        0,                             /* rightshift */
+        2,                             /* size (0 = byte, 1 = short, 2 = long) */
+        16,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        local16_reloc,                 /* special_function */
+        "PPL16B",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0xffff,                        /* src_mask */
+        0xffff,                        /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPN15,                      /* type */
+        0,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob15_reloc,                  /* special_function */
+        "PPN15",                       /* name */
+        TRUE,                          /* partial_inplace */
+        0x1ffc0,                       /* src_mask */
+        0x1ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPN15W,                     /* type */
+        2,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob15_reloc,                  /* special_function */
+        "PPN15W",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0x1ffc0,                       /* src_mask */
+        0x1ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPN15H,                     /* type */
+        1,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob15_reloc,                  /* special_function */
+        "PPN15H",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0x1ffc0,                       /* src_mask */
+        0x1ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPN16B,                     /* type */
+        0,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        16,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        6,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        glob16_reloc,                  /* special_function */
+        "PPN16B",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0x3ffc0,                       /* src_mask */
+        0x3ffc0,                       /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPLN15,                     /* type */
+        0,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "PPLN15",                      /* name */
+        TRUE,                          /* partial_inplace */
+        0x7fff,                        /* src_mask */
+        0x7fff,                        /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPLN15W,                    /* type */
+        2,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "PPLN15W",                     /* name */
+        TRUE,                          /* partial_inplace */
+        0x7fff,                        /* src_mask */
+        0x7fff,                        /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPLN15H,                    /* type */
+        1,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        NULL,                          /* special_function */
+        "PPLN15H",                     /* name */
+        TRUE,                          /* partial_inplace */
+        0x7fff,                        /* src_mask */
+        0x7fff,                        /* dst_mask */
+        FALSE),                        /* pcrel_offset */
+
+  HOWTO (R_PPLN16B,                    /* type */
+        0,                             /* rightshift */
+        -2,                            /* size (0 = byte, 1 = short, 2 = long) */
+        15,                            /* bitsize */
+        FALSE,                         /* pc_relative */
+        0,                             /* bitpos */
+        complain_overflow_dont,        /* complain_on_overflow */
+        local16_reloc,                 /* special_function */
+        "PPLN16B",                     /* name */
+        TRUE,                          /* partial_inplace */
+        0xffff,                        /* src_mask */
+        0xffff,                        /* dst_mask */
+        FALSE)                         /* pcrel_offset */
+};
+\f
+/* Special relocation functions, used when the output file is not
+   itself a COFF TIc80 file.  */
+
+/* This special function is used for the base address type
+   relocations.  */
+
+static bfd_reloc_status_type
+ppbase_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+             error_message)
+     bfd *abfd ATTRIBUTE_UNUSED;
+     arelent *reloc_entry ATTRIBUTE_UNUSED;
+     asymbol *symbol_in ATTRIBUTE_UNUSED;
+     PTR data ATTRIBUTE_UNUSED;
+     asection *input_section ATTRIBUTE_UNUSED;
+     bfd *output_bfd ATTRIBUTE_UNUSED;
+     char **error_message ATTRIBUTE_UNUSED;
+{
+  /* FIXME.  */
+  abort ();
+}
+
+/* This special function is used for the global 15 bit relocations.  */
+
+static bfd_reloc_status_type
+glob15_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+             error_message)
+     bfd *abfd ATTRIBUTE_UNUSED;
+     arelent *reloc_entry ATTRIBUTE_UNUSED;
+     asymbol *symbol_in ATTRIBUTE_UNUSED;
+     PTR data ATTRIBUTE_UNUSED;
+     asection *input_section ATTRIBUTE_UNUSED;
+     bfd *output_bfd ATTRIBUTE_UNUSED;
+     char **error_message ATTRIBUTE_UNUSED;
+{
+  /* FIXME.  */
+  abort ();
+}
+
+/* This special function is used for the global 16 bit relocations.  */
+
+static bfd_reloc_status_type
+glob16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+             error_message)
+     bfd *abfd ATTRIBUTE_UNUSED;
+     arelent *reloc_entry ATTRIBUTE_UNUSED;
+     asymbol *symbol_in ATTRIBUTE_UNUSED;
+     PTR data ATTRIBUTE_UNUSED;
+     asection *input_section ATTRIBUTE_UNUSED;
+     bfd *output_bfd ATTRIBUTE_UNUSED;
+     char **error_message ATTRIBUTE_UNUSED;
+{
+  /* FIXME.  */
+  abort ();
+}
+
+/* This special function is used for the local 16 bit relocations.  */
+
+static bfd_reloc_status_type
+local16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+             error_message)
+     bfd *abfd ATTRIBUTE_UNUSED;
+     arelent *reloc_entry ATTRIBUTE_UNUSED;
+     asymbol *symbol_in ATTRIBUTE_UNUSED;
+     PTR data ATTRIBUTE_UNUSED;
+     asection *input_section ATTRIBUTE_UNUSED;
+     bfd *output_bfd ATTRIBUTE_UNUSED;
+     char **error_message ATTRIBUTE_UNUSED;
+{
+  /* FIXME.  */
+  abort ();
+}
+\f
+/* Code to turn an external r_type into a pointer to an entry in the howto_table.
+   If passed an r_type we don't recognize the abort rather than silently failing
+   to generate an output file.  */
+
+static void
+rtype2howto (cache_ptr, dst)
+     arelent *cache_ptr;
+     struct internal_reloc *dst;
+{
+  unsigned int i;
+
+  for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
+    {
+      if (tic80_howto_table[i].type == dst->r_type)
+       {
+         cache_ptr->howto = tic80_howto_table + i;
+         return;
+       }
+    }
+
+  (*_bfd_error_handler) (_("Unrecognized reloc type 0x%x"),
+                        (unsigned int) dst->r_type);
+  cache_ptr->howto = tic80_howto_table + 0;
+}
+
+#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
+#define coff_rtype_to_howto coff_tic80_rtype_to_howto
+
+static reloc_howto_type *
+coff_tic80_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
+     bfd *abfd ATTRIBUTE_UNUSED;
+     asection *sec;
+     struct internal_reloc *rel;
+     struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
+     struct internal_syment *sym ATTRIBUTE_UNUSED;
+     bfd_vma *addendp;
+{
+  arelent genrel;
+
+  if (rel -> r_symndx == -1 && addendp != NULL)
+    {
+      /* This is a TI "internal relocation", which means that the relocation
+        amount is the amount by which the current section is being relocated
+        in the output section.  */
+      *addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma;
+    }
+  RTYPE2HOWTO (&genrel, rel);
+  return genrel.howto;
+}
+
+#ifndef BADMAG
+#define BADMAG(x) TIC80BADMAG(x)
+#endif
+\f
+#define coff_relocate_section coff_tic80_relocate_section
+
+/* We need a special relocation routine to handle the PP relocs.  Most
+   of this is a copy of _bfd_coff_generic_relocate_section.  */
+
+static bfd_boolean
+coff_tic80_relocate_section (output_bfd, info, input_bfd,
+                            input_section, contents, relocs, syms,
+                            sections)
+     bfd *output_bfd;
+     struct bfd_link_info *info;
+     bfd *input_bfd;
+     asection *input_section;
+     bfd_byte *contents;
+     struct internal_reloc *relocs;
+     struct internal_syment *syms;
+     asection **sections;
+{
+  struct internal_reloc *rel;
+  struct internal_reloc *relend;
+
+  rel = relocs;
+  relend = rel + input_section->reloc_count;
+  for (; rel < relend; rel++)
+    {
+      long symndx;
+      struct coff_link_hash_entry *h;
+      struct internal_syment *sym;
+      bfd_vma addend;
+      bfd_vma val;
+      reloc_howto_type *howto;
+      bfd_reloc_status_type rstat;
+      bfd_vma addr;
+
+      symndx = rel->r_symndx;
+
+      if (symndx == -1)
+       {
+         h = NULL;
+         sym = NULL;
+       }
+      else
+       {
+         h = obj_coff_sym_hashes (input_bfd)[symndx];
+         sym = syms + symndx;
+       }
+
+      /* COFF treats common symbols in one of two ways.  Either the
+         size of the symbol is included in the section contents, or it
+         is not.  We assume that the size is not included, and force
+         the rtype_to_howto function to adjust the addend as needed.  */
+
+      if (sym != NULL && sym->n_scnum != 0)
+       addend = - sym->n_value;
+      else
+       addend = 0;
+
+      howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
+                                      sym, &addend);
+      if (howto == NULL)
+       return FALSE;
+
+      val = 0;
+
+      if (h == NULL)
+       {
+         asection *sec;
+
+         if (symndx == -1)
+           {
+             sec = bfd_abs_section_ptr;
+             val = 0;
+           }
+         else
+           {
+             sec = sections[symndx];
+              val = (sec->output_section->vma
+                    + sec->output_offset
+                    + sym->n_value);
+             if (! obj_pe (output_bfd))
+               val -= sec->vma;
+           }
+       }
+      else
+       {
+         if (h->root.type == bfd_link_hash_defined
+             || h->root.type == bfd_link_hash_defweak)
+           {
+             asection *sec;
+
+             sec = h->root.u.def.section;
+             val = (h->root.u.def.value
+                    + sec->output_section->vma
+                    + sec->output_offset);
+             }
+
+         else if (! info->relocatable)
+           {
+             if (! ((*info->callbacks->undefined_symbol)
+                    (info, h->root.root.string, input_bfd, input_section,
+                     rel->r_vaddr - input_section->vma, TRUE)))
+               return FALSE;
+           }
+       }
+
+      addr = rel->r_vaddr - input_section->vma;
+
+      /* FIXME: This code assumes little endian, but the PP can
+         apparently be bi-endian.  I don't know if the bi-endianness
+         applies to the instruction set or just to the data.  */
+      switch (howto->type)
+       {
+       default:
+       case R_ABS:
+       case R_RELLONGX:
+       case R_PPL15:
+       case R_PPL15W:
+       case R_PPL15H:
+       case R_PPLN15:
+       case R_PPLN15W:
+       case R_PPLN15H:
+         rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+                                           contents, addr, val, addend);
+         break;
+
+       case R_PP15:
+       case R_PP15W:
+       case R_PP15H:
+       case R_PPN15:
+       case R_PPN15W:
+       case R_PPN15H:
+         /* Offset the address so that we can use 4 byte relocations.  */
+         rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+                                           contents + 2, addr, val, addend);
+         break;
+
+       case R_PP16B:
+       case R_PPN16B:
+         {
+           /* The most significant bit is stored in bit 6.  */
+           bfd_byte hold;
+
+           hold = contents[addr + 4];
+           contents[addr + 4] &=~ 0x20;
+           contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
+           rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+                                             contents + 2, addr,
+                                             val, addend);
+           contents[addr] &=~ 0x40;
+           contents[addr] |= (contents[addr + 4] << 1) & 0x40;
+           contents[addr + 4] &=~ 0x20;
+           contents[addr + 4] |= hold & 0x20;
+           break;
+         }
+
+       case R_PPL16B:
+       case R_PPLN16B:
+         {
+           /* The most significant bit is stored in bit 28.  */
+           bfd_byte hold;
+
+           hold = contents[addr + 1];
+           contents[addr + 1] &=~ 0x80;
+           contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
+           rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+                                             contents, addr,
+                                             val, addend);
+           contents[addr + 3] &= ~0x10;
+           contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
+           contents[addr + 1] &=~ 0x80;
+           contents[addr + 1] |= hold & 0x80;
+           break;
+         }
+
+       case R_PPBASE:
+         /* Parameter RAM is from 0x1000000 to 0x1000800.  */
+         contents[addr] &=~ 0x3;
+         if (val >= 0x1000000 && val < 0x1000800)
+           contents[addr] |= 0x3;
+         else
+           contents[addr] |= 0x2;
+         rstat = bfd_reloc_ok;
+         break;
+
+       case R_PPLBASE:
+         /* Parameter RAM is from 0x1000000 to 0x1000800.  */
+         contents[addr + 2] &= ~0xc0;
+         if (val >= 0x1000000 && val < 0x1000800)
+           contents[addr + 2] |= 0xc0;
+         else
+           contents[addr + 2] |= 0x80;
+         rstat = bfd_reloc_ok;
+         break;
+       }
+
+      switch (rstat)
+       {
+       default:
+         abort ();
+       case bfd_reloc_ok:
+         break;
+       case bfd_reloc_outofrange:
+         (*_bfd_error_handler)
+           (_("%B: bad reloc address 0x%lx in section `%A'"),
+            input_bfd, input_section, (unsigned long) rel->r_vaddr);
+         return FALSE;
+       case bfd_reloc_overflow:
+         {
+           const char *name;
+           char buf[SYMNMLEN + 1];
+
+           if (symndx == -1)
+             name = "*ABS*";
+           else if (h != NULL)
+             name = NULL;
+           else
+             {
+               name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
+               if (name == NULL)
+                 return FALSE;
+             }
+
+           if (! ((*info->callbacks->reloc_overflow)
+                  (info, (h ? &h->root : NULL), name, howto->name,
+                   (bfd_vma) 0, input_bfd, input_section,
+                   rel->r_vaddr - input_section->vma)))
+             return FALSE;
+         }
+       }
+    }
+  return TRUE;
+}
+\f
+/* Clear the r_reserved field in relocs.  */
+#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
+  do \
+    { \
+      dst->r_reserved[0] = 0; \
+      dst->r_reserved[1] = 0; \
+    } \
+  while (0)
+
+#define TIC80COFF 1            /* Customize coffcode.h */
+#undef C_AUTOARG               /* Clashes with TIc80's C_UEXT */
+#undef C_LASTENT               /* Clashes with TIc80's C_STATLAB */
+#include "coffcode.h"
+
+CREATE_LITTLE_COFF_TARGET_VEC (tic80coff_vec, "coff-tic80", D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)
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