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/* Infineon XC16X-specific support for 16-bit ELF.
   Copyright 2006, 2007, 2009, 2010  Free Software Foundation, Inc.
   Contributed by KPIT Cummins Infosystems
 
   This file is part of BFD, the Binary File Descriptor library.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   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, 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */
 
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/xc16x.h"
#include "dwarf2.h"
#include "libiberty.h"
 
static reloc_howto_type xc16x_elf_howto_table [] =
{
  /* This reloc does nothing.  */
  HOWTO (R_XC16X_NONE,          /* type */
         0,                      /* rightshift */
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
         16,                    /* bitsize */
         FALSE,                 /* pc_relative */
         0,                      /* bitpos */
         complain_overflow_bitfield, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_XC16X_NONE",        /* name */
         FALSE,                 /* partial_inplace */
         0,                      /* src_mask */
         0,                      /* dst_mask */
         FALSE),                /* pcrel_offset */
 
  /* An 8 bit absolute relocation.  */
  HOWTO (R_XC16X_ABS_8,         /* type */
         0,                      /* rightshift */
         0,                      /* size (0 = byte, 1 = short, 2 = long) */
         8,                     /* bitsize */
         FALSE,                 /* pc_relative */
         8,                     /* bitpos */
         complain_overflow_bitfield, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_XC16X_ABS_8",       /* name */
         TRUE,                  /* partial_inplace */
         0x0000,                /* src_mask */
         0x00ff,                /* dst_mask */
         FALSE),                /* pcrel_offset */
 
  /* A 16 bit absolute relocation.  */
  HOWTO (R_XC16X_ABS_16,        /* type */
         0,                      /* rightshift */
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
         16,                    /* bitsize */
         FALSE,                 /* pc_relative */
         0,                      /* bitpos */
         complain_overflow_dont, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_XC16X_ABS_16",      /* name */
         TRUE,                  /* partial_inplace */
         0x00000000,            /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
  HOWTO (R_XC16X_ABS_32,        /* type */
         0,                      /* rightshift */
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
         32,                    /* bitsize */
         FALSE,                 /* pc_relative */
         0,                      /* bitpos */
         complain_overflow_bitfield, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_XC16X_ABS_32",      /* name */
         TRUE,                  /* partial_inplace */
         0x00000000,            /* src_mask */
         0xffffffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
 
  /* A PC relative 8 bit relocation.  */
  HOWTO (R_XC16X_8_PCREL,       /* type */
         0,                      /* rightshift */
         0,                      /* size (0 = byte, 1 = short, 2 = long) */
         8,                     /* bitsize */
         TRUE,                  /* pc_relative */
         8,                     /* bitpos */
         complain_overflow_signed, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_XC16X_8_PCREL",     /* name */
         FALSE,                 /* partial_inplace */
         0x0000,                /* src_mask */
         0x00ff,                /* dst_mask */
         TRUE),         /* pcrel_offset */
 
  /* Relocation regarding page number.  */
    HOWTO (R_XC16X_PAG, /* type */
         0,                      /* rightshift */
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
         16,                    /* bitsize */
         FALSE,                 /* pc_relative */
         0,                      /* bitpos */
         complain_overflow_signed, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_XC16X_PAG", /* name */
         TRUE,                  /* partial_inplace */
         0x00000000,            /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
 
  /* Relocation regarding page number.  */
      HOWTO (R_XC16X_POF,       /* type */
         0,                      /* rightshift */
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
         16,                    /* bitsize */
         FALSE,                 /* pc_relative */
         0,                      /* bitpos  */
         complain_overflow_signed, /* complain_on_overflow  */
         bfd_elf_generic_reloc, /* special_function  */
         "R_XC16X_POF", /* name  */
         TRUE,                  /* partial_inplace  */
         0x00000000,            /* src_mask  */
         0x0000ffff,            /* dst_mask  */
         FALSE),                /* pcrel_offset  */
 
 
  /* Relocation regarding segment number.   */
      HOWTO (R_XC16X_SEG,       /* type  */
         0,                      /* rightshift  */
         1,                     /* size (0 = byte, 1 = short, 2 = long)  */
         16,                    /* bitsize  */
         FALSE,                 /* pc_relative  */
         0,                      /* bitpos  */
         complain_overflow_signed, /* complain_on_overflow  */
         bfd_elf_generic_reloc, /* special_function  */
         "R_XC16X_SEG", /* name  */
         TRUE,                  /* partial_inplace  */
         0x00000000,            /* src_mask  */
         0x0000ffff,            /* dst_mask  */
         FALSE),                /* pcrel_offset  */
 
  /* Relocation regarding segment offset.  */
      HOWTO (R_XC16X_SOF,       /* type  */
         0,                      /* rightshift  */
         1,                     /* size (0 = byte, 1 = short, 2 = long)  */
         16,                    /* bitsize  */
         FALSE,                 /* pc_relative  */
         0,                      /* bitpos  */
         complain_overflow_signed, /* complain_on_overflow  */
         bfd_elf_generic_reloc, /* special_function  */
         "R_XC16X_SOF", /* name */
         TRUE,                  /* partial_inplace  */
         0x00000000,            /* src_mask  */
         0x0000ffff,            /* dst_mask  */
         FALSE)                 /* pcrel_offset  */
};
 
 
/* Map BFD reloc types to XC16X ELF reloc types.  */
 
struct xc16x_reloc_map
{
  bfd_reloc_code_real_type bfd_reloc_val;
  unsigned int xc16x_reloc_val;
};
 
static const struct xc16x_reloc_map xc16x_reloc_map [] =
{
  { BFD_RELOC_NONE,           R_XC16X_NONE },
  { BFD_RELOC_8,              R_XC16X_ABS_8 },
  { BFD_RELOC_16,             R_XC16X_ABS_16 },
  { BFD_RELOC_32,             R_XC16X_ABS_32 },
  { BFD_RELOC_8_PCREL,        R_XC16X_8_PCREL },
  { BFD_RELOC_XC16X_PAG,      R_XC16X_PAG},
  { BFD_RELOC_XC16X_POF,      R_XC16X_POF},
  { BFD_RELOC_XC16X_SEG,      R_XC16X_SEG},
  { BFD_RELOC_XC16X_SOF,      R_XC16X_SOF},
};
 
 
/* This function is used to search for correct relocation type from
   howto structure.  */
 
static reloc_howto_type *
xc16x_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
                         bfd_reloc_code_real_type code)
{
  unsigned int i;
 
  for (i = ARRAY_SIZE (xc16x_reloc_map); --i;)
    if (xc16x_reloc_map [i].bfd_reloc_val == code)
      return & xc16x_elf_howto_table [xc16x_reloc_map[i].xc16x_reloc_val];
 
  return NULL;
}
 
static reloc_howto_type *
xc16x_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
                         const char *r_name)
{
  unsigned int i;
 
  for (i = 0;
       i < sizeof (xc16x_elf_howto_table) / sizeof (xc16x_elf_howto_table[0]);
       i++)
    if (xc16x_elf_howto_table[i].name != NULL
        && strcasecmp (xc16x_elf_howto_table[i].name, r_name) == 0)
      return &xc16x_elf_howto_table[i];
 
  return NULL;
}
 
/* For a particular operand this function is
   called to finalise the type of relocation.  */
 
static void
elf32_xc16x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
                           Elf_Internal_Rela *elf_reloc)
{
  unsigned int r;
  unsigned int i;
 
  r = ELF32_R_TYPE (elf_reloc->r_info);
  for (i = 0; i < ARRAY_SIZE (xc16x_elf_howto_table); i++)
    if (xc16x_elf_howto_table[i].type == r)
      {
        bfd_reloc->howto = &xc16x_elf_howto_table[i];
        return;
      }
  abort ();
}
 
static bfd_reloc_status_type
elf32_xc16x_final_link_relocate (unsigned long r_type,
                                 bfd *input_bfd,
                                 bfd *output_bfd ATTRIBUTE_UNUSED,
                                 asection *input_section ATTRIBUTE_UNUSED,
                                 bfd_byte *contents,
                                 bfd_vma offset,
                                 bfd_vma value,
                                 bfd_vma addend,
                                 struct bfd_link_info *info ATTRIBUTE_UNUSED,
                                 asection *sym_sec ATTRIBUTE_UNUSED,
                                 int is_local ATTRIBUTE_UNUSED)
{
  bfd_byte *hit_data = contents + offset;
  bfd_vma val1;
 
  switch (r_type)
    {
    case R_XC16X_NONE:
      return bfd_reloc_ok;
 
    case R_XC16X_ABS_16:
      value += addend;
      bfd_put_16 (input_bfd, value, hit_data);
      return bfd_reloc_ok;
 
    case R_XC16X_8_PCREL:
      bfd_put_8 (input_bfd, value, hit_data);
      return bfd_reloc_ok;
 
      /* Following case is to find page number from actual
         address for this divide value by 16k i.e. page size.  */
 
    case R_XC16X_PAG:
      value += addend;
      value /= 0x4000;
      bfd_put_16 (input_bfd, value, hit_data);
      return bfd_reloc_ok;
 
      /* Following case is to find page offset from actual address
         for this take modulo of value by 16k i.e. page size.  */
 
    case R_XC16X_POF:
      value += addend;
      value %= 0x4000;
      bfd_put_16 (input_bfd, value, hit_data);
      return bfd_reloc_ok;
 
      /* Following case is to find segment number from actual
         address for this divide value by 64k i.e. segment size.  */
 
    case R_XC16X_SEG:
      value += addend;
      value /= 0x10000;
      bfd_put_16 (input_bfd, value, hit_data);
      return bfd_reloc_ok;
 
      /* Following case is to find segment offset from actual address
         for this take modulo of value by 64k i.e. segment size.  */
 
    case R_XC16X_SOF:
      value += addend;
      value %= 0x10000;
      bfd_put_16 (input_bfd, value, hit_data);
      return bfd_reloc_ok;
 
    case R_XC16X_ABS_32:
      if (!strstr (input_section->name,".debug"))
        {
          value += addend;
          val1 = value;
          value %= 0x4000;
          val1 /= 0x4000;
          val1 = val1 << 16;
          value += val1;
          bfd_put_32 (input_bfd, value, hit_data);
        }
      else
        {
          value += addend;
          bfd_put_32 (input_bfd, value, hit_data);
        }
      return bfd_reloc_ok;
 
    default:
      return bfd_reloc_notsupported;
    }
}
 
static bfd_boolean
elf32_xc16x_relocate_section (bfd *output_bfd,
                              struct bfd_link_info *info,
                              bfd *input_bfd,
                              asection *input_section,
                              bfd_byte *contents,
                              Elf_Internal_Rela *relocs,
                              Elf_Internal_Sym *local_syms,
                              asection **local_sections)
{
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes;
  Elf_Internal_Rela *rel, *relend;
 
  symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (input_bfd);
 
  rel = relocs;
  relend = relocs + input_section->reloc_count;
  for (; rel < relend; rel++)
    {
      unsigned int r_type;
      unsigned long r_symndx;
      Elf_Internal_Sym *sym;
      asection *sec;
      struct elf_link_hash_entry *h;
      bfd_vma relocation;
 
      /* This is a final link.  */
      r_symndx = ELF32_R_SYM (rel->r_info);
      r_type = ELF32_R_TYPE (rel->r_info);
      h = NULL;
      sym = NULL;
      sec = NULL;
      if (r_symndx < symtab_hdr->sh_info)
        {
          sym = local_syms + r_symndx;
          sec = local_sections[r_symndx];
          relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
        }
      else
        {
          bfd_boolean unresolved_reloc, warned;
 
          RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
                                   r_symndx, symtab_hdr, sym_hashes,
                                   h, sec, relocation,
                                   unresolved_reloc, warned);
        }
 
      if (sec != NULL && elf_discarded_section (sec))
        {
          /* For relocs against symbols from removed linkonce sections,
             or sections discarded by a linker script, we just want the
             section contents zeroed.  Avoid any special processing.  */
          reloc_howto_type *howto;
          howto = xc16x_reloc_type_lookup (input_bfd, r_type);
          _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
          rel->r_info = 0;
          rel->r_addend = 0;
          continue;
        }
 
      if (info->relocatable)
        continue;
 
      elf32_xc16x_final_link_relocate (r_type, input_bfd, output_bfd,
                                       input_section,
                                       contents, rel->r_offset,
                                       relocation, rel->r_addend,
                                       info, sec, h == NULL);
    }
 
  return TRUE;
}
 
 
static void
elf32_xc16x_final_write_processing (bfd *abfd,
                                    bfd_boolean linker ATTRIBUTE_UNUSED)
{
  unsigned long val;
 
  switch (bfd_get_mach (abfd))
    {
    default:
    case bfd_mach_xc16x:
      val = 0x1000;
      break;
 
    case bfd_mach_xc16xl:
      val = 0x1001;
      break;
 
    case bfd_mach_xc16xs:
      val = 0x1002;
      break;
    }
 
  elf_elfheader (abfd)->e_flags |= val;
}
 
static unsigned long
elf32_xc16x_mach (flagword flags)
{
  switch (flags)
    {
    case 0x1000:
    default:
      return bfd_mach_xc16x;
 
    case 0x1001:
      return bfd_mach_xc16xl;
 
    case 0x1002:
      return bfd_mach_xc16xs;
    }
}
 
 
static bfd_boolean
elf32_xc16x_object_p (bfd *abfd)
{
  bfd_default_set_arch_mach (abfd, bfd_arch_xc16x,
                             elf32_xc16x_mach (elf_elfheader (abfd)->e_flags));
  return TRUE;
}
 
 
#define ELF_ARCH                bfd_arch_xc16x
#define ELF_MACHINE_CODE        EM_XC16X
#define ELF_MAXPAGESIZE         0x100
 
#define TARGET_LITTLE_SYM       bfd_elf32_xc16x_vec
#define TARGET_LITTLE_NAME      "elf32-xc16x"
#define elf_backend_final_write_processing      elf32_xc16x_final_write_processing
#define elf_backend_object_p            elf32_xc16x_object_p
#define elf_backend_can_gc_sections     1
#define bfd_elf32_bfd_reloc_type_lookup xc16x_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup xc16x_reloc_name_lookup
#define elf_info_to_howto               elf32_xc16x_info_to_howto
#define elf_info_to_howto_rel           elf32_xc16x_info_to_howto
#define elf_backend_relocate_section    elf32_xc16x_relocate_section
#define elf_backend_rela_normal         1
 
#include "elf32-target.h"

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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [bfd/] [elf32-xc16x.c] - Blame information for rev 359

Line No.	Rev	Author	Line
1	330	jeremybenn	`/* Infineon XC16X-specific support for 16-bit ELF.`
2			`Copyright 2006, 2007, 2009, 2010 Free Software Foundation, Inc.`
3			`Contributed by KPIT Cummins Infosystems`
4
5			`This file is part of BFD, the Binary File Descriptor library.`
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 3 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, 51 Franklin Street - Fifth Floor, Boston,`
20			`MA 02110-1301, USA. */`
21
22			`#include "sysdep.h"`
23			`#include "bfd.h"`
24			`#include "libbfd.h"`
25			`#include "elf-bfd.h"`
26			`#include "elf/xc16x.h"`
27			`#include "dwarf2.h"`
28			`#include "libiberty.h"`
29
30			`static reloc_howto_type xc16x_elf_howto_table [] =`
31			`{`
32			`/* This reloc does nothing. */`
33			`HOWTO (R_XC16X_NONE, /* type */`
34			`0, /* rightshift */`
35			`1, /* size (0 = byte, 1 = short, 2 = long) */`
36			`16, /* bitsize */`
37			`FALSE, /* pc_relative */`
38			`0, /* bitpos */`
39			`complain_overflow_bitfield, /* complain_on_overflow */`
40			`bfd_elf_generic_reloc, /* special_function */`
41			`"R_XC16X_NONE", /* name */`
42			`FALSE, /* partial_inplace */`
43			`0, /* src_mask */`
44			`0, /* dst_mask */`
45			`FALSE), /* pcrel_offset */`
46
47			`/* An 8 bit absolute relocation. */`
48			`HOWTO (R_XC16X_ABS_8, /* type */`
49			`0, /* rightshift */`
50			`0, /* size (0 = byte, 1 = short, 2 = long) */`
51			`8, /* bitsize */`
52			`FALSE, /* pc_relative */`
53			`8, /* bitpos */`
54			`complain_overflow_bitfield, /* complain_on_overflow */`
55			`bfd_elf_generic_reloc, /* special_function */`
56			`"R_XC16X_ABS_8", /* name */`
57			`TRUE, /* partial_inplace */`
58			`0x0000, /* src_mask */`
59			`0x00ff, /* dst_mask */`
60			`FALSE), /* pcrel_offset */`
61
62			`/* A 16 bit absolute relocation. */`
63			`HOWTO (R_XC16X_ABS_16, /* type */`
64			`0, /* rightshift */`
65			`1, /* size (0 = byte, 1 = short, 2 = long) */`
66			`16, /* bitsize */`
67			`FALSE, /* pc_relative */`
68			`0, /* bitpos */`
69			`complain_overflow_dont, /* complain_on_overflow */`
70			`bfd_elf_generic_reloc, /* special_function */`
71			`"R_XC16X_ABS_16", /* name */`
72			`TRUE, /* partial_inplace */`
73			`0x00000000, /* src_mask */`
74			`0x0000ffff, /* dst_mask */`
75			`FALSE), /* pcrel_offset */`
76
77			`HOWTO (R_XC16X_ABS_32, /* type */`
78			`0, /* rightshift */`
79			`2, /* size (0 = byte, 1 = short, 2 = long) */`
80			`32, /* bitsize */`
81			`FALSE, /* pc_relative */`
82			`0, /* bitpos */`
83			`complain_overflow_bitfield, /* complain_on_overflow */`
84			`bfd_elf_generic_reloc, /* special_function */`
85			`"R_XC16X_ABS_32", /* name */`
86			`TRUE, /* partial_inplace */`
87			`0x00000000, /* src_mask */`
88			`0xffffffff, /* dst_mask */`
89			`FALSE), /* pcrel_offset */`
90
91
92			`/* A PC relative 8 bit relocation. */`
93			`HOWTO (R_XC16X_8_PCREL, /* type */`
94			`0, /* rightshift */`
95			`0, /* size (0 = byte, 1 = short, 2 = long) */`
96			`8, /* bitsize */`
97			`TRUE, /* pc_relative */`
98			`8, /* bitpos */`
99			`complain_overflow_signed, /* complain_on_overflow */`
100			`bfd_elf_generic_reloc, /* special_function */`
101			`"R_XC16X_8_PCREL", /* name */`
102			`FALSE, /* partial_inplace */`
103			`0x0000, /* src_mask */`
104			`0x00ff, /* dst_mask */`
105			`TRUE), /* pcrel_offset */`
106
107			`/* Relocation regarding page number. */`
108			`HOWTO (R_XC16X_PAG, /* type */`
109			`0, /* rightshift */`
110			`1, /* size (0 = byte, 1 = short, 2 = long) */`
111			`16, /* bitsize */`
112			`FALSE, /* pc_relative */`
113			`0, /* bitpos */`
114			`complain_overflow_signed, /* complain_on_overflow */`
115			`bfd_elf_generic_reloc, /* special_function */`
116			`"R_XC16X_PAG", /* name */`
117			`TRUE, /* partial_inplace */`
118			`0x00000000, /* src_mask */`
119			`0x0000ffff, /* dst_mask */`
120			`FALSE), /* pcrel_offset */`
121
122
123			`/* Relocation regarding page number. */`
124			`HOWTO (R_XC16X_POF, /* type */`
125			`0, /* rightshift */`
126			`1, /* size (0 = byte, 1 = short, 2 = long) */`
127			`16, /* bitsize */`
128			`FALSE, /* pc_relative */`
129			`0, /* bitpos */`
130			`complain_overflow_signed, /* complain_on_overflow */`
131			`bfd_elf_generic_reloc, /* special_function */`
132			`"R_XC16X_POF", /* name */`
133			`TRUE, /* partial_inplace */`
134			`0x00000000, /* src_mask */`
135			`0x0000ffff, /* dst_mask */`
136			`FALSE), /* pcrel_offset */`
137
138
139			`/* Relocation regarding segment number. */`
140			`HOWTO (R_XC16X_SEG, /* type */`
141			`0, /* rightshift */`
142			`1, /* size (0 = byte, 1 = short, 2 = long) */`
143			`16, /* bitsize */`
144			`FALSE, /* pc_relative */`
145			`0, /* bitpos */`
146			`complain_overflow_signed, /* complain_on_overflow */`
147			`bfd_elf_generic_reloc, /* special_function */`
148			`"R_XC16X_SEG", /* name */`
149			`TRUE, /* partial_inplace */`
150			`0x00000000, /* src_mask */`
151			`0x0000ffff, /* dst_mask */`
152			`FALSE), /* pcrel_offset */`
153
154			`/* Relocation regarding segment offset. */`
155			`HOWTO (R_XC16X_SOF, /* type */`
156			`0, /* rightshift */`
157			`1, /* size (0 = byte, 1 = short, 2 = long) */`
158			`16, /* bitsize */`
159			`FALSE, /* pc_relative */`
160			`0, /* bitpos */`
161			`complain_overflow_signed, /* complain_on_overflow */`
162			`bfd_elf_generic_reloc, /* special_function */`
163			`"R_XC16X_SOF", /* name */`
164			`TRUE, /* partial_inplace */`
165			`0x00000000, /* src_mask */`
166			`0x0000ffff, /* dst_mask */`
167			`FALSE) /* pcrel_offset */`
168			`};`
169
170
171			`/* Map BFD reloc types to XC16X ELF reloc types. */`
172
173			`struct xc16x_reloc_map`
174			`{`
175			`bfd_reloc_code_real_type bfd_reloc_val;`
176			`unsigned int xc16x_reloc_val;`
177			`};`
178
179			`static const struct xc16x_reloc_map xc16x_reloc_map [] =`
180			`{`
181			`{ BFD_RELOC_NONE, R_XC16X_NONE },`
182			`{ BFD_RELOC_8, R_XC16X_ABS_8 },`
183			`{ BFD_RELOC_16, R_XC16X_ABS_16 },`
184			`{ BFD_RELOC_32, R_XC16X_ABS_32 },`
185			`{ BFD_RELOC_8_PCREL, R_XC16X_8_PCREL },`
186			`{ BFD_RELOC_XC16X_PAG, R_XC16X_PAG},`
187			`{ BFD_RELOC_XC16X_POF, R_XC16X_POF},`
188			`{ BFD_RELOC_XC16X_SEG, R_XC16X_SEG},`
189			`{ BFD_RELOC_XC16X_SOF, R_XC16X_SOF},`
190			`};`
191
192
193			`/* This function is used to search for correct relocation type from`
194			`howto structure. */`
195
196			`static reloc_howto_type *`
197			`xc16x_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,`
198			`bfd_reloc_code_real_type code)`
199			`{`
200			`unsigned int i;`
201
202			`for (i = ARRAY_SIZE (xc16x_reloc_map); --i;)`
203			`if (xc16x_reloc_map [i].bfd_reloc_val == code)`
204			`return & xc16x_elf_howto_table [xc16x_reloc_map[i].xc16x_reloc_val];`
205
206			`return NULL;`
207			`}`
208
209			`static reloc_howto_type *`
210			`xc16x_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,`
211			`const char *r_name)`
212			`{`
213			`unsigned int i;`
214
215			`for (i = 0;`
216			`i < sizeof (xc16x_elf_howto_table) / sizeof (xc16x_elf_howto_table[0]);`
217			`i++)`
218			`if (xc16x_elf_howto_table[i].name != NULL`
219			`&& strcasecmp (xc16x_elf_howto_table[i].name, r_name) == 0)`
220			`return &xc16x_elf_howto_table[i];`
221
222			`return NULL;`
223			`}`
224
225			`/* For a particular operand this function is`
226			`called to finalise the type of relocation. */`
227
228			`static void`
229			`elf32_xc16x_info_to_howto (bfd abfd ATTRIBUTE_UNUSED, arelent bfd_reloc,`
230			`Elf_Internal_Rela *elf_reloc)`
231			`{`
232			`unsigned int r;`
233			`unsigned int i;`
234
235			`r = ELF32_R_TYPE (elf_reloc->r_info);`
236			`for (i = 0; i < ARRAY_SIZE (xc16x_elf_howto_table); i++)`
237			`if (xc16x_elf_howto_table[i].type == r)`
238			`{`
239			`bfd_reloc->howto = &xc16x_elf_howto_table[i];`
240			`return;`
241			`}`
242			`abort ();`
243			`}`
244
245			`static bfd_reloc_status_type`
246			`elf32_xc16x_final_link_relocate (unsigned long r_type,`
247			`bfd *input_bfd,`
248			`bfd *output_bfd ATTRIBUTE_UNUSED,`
249			`asection *input_section ATTRIBUTE_UNUSED,`
250			`bfd_byte *contents,`
251			`bfd_vma offset,`
252			`bfd_vma value,`
253			`bfd_vma addend,`
254			`struct bfd_link_info *info ATTRIBUTE_UNUSED,`
255			`asection *sym_sec ATTRIBUTE_UNUSED,`
256			`int is_local ATTRIBUTE_UNUSED)`
257			`{`
258			`bfd_byte *hit_data = contents + offset;`
259			`bfd_vma val1;`
260
261			`switch (r_type)`
262			`{`
263			`case R_XC16X_NONE:`
264			`return bfd_reloc_ok;`
265
266			`case R_XC16X_ABS_16:`
267			`value += addend;`
268			`bfd_put_16 (input_bfd, value, hit_data);`
269			`return bfd_reloc_ok;`
270
271			`case R_XC16X_8_PCREL:`
272			`bfd_put_8 (input_bfd, value, hit_data);`
273			`return bfd_reloc_ok;`
274
275			`/* Following case is to find page number from actual`
276			`address for this divide value by 16k i.e. page size. */`
277
278			`case R_XC16X_PAG:`
279			`value += addend;`
280			`value /= 0x4000;`
281			`bfd_put_16 (input_bfd, value, hit_data);`
282			`return bfd_reloc_ok;`
283
284			`/* Following case is to find page offset from actual address`
285			`for this take modulo of value by 16k i.e. page size. */`
286
287			`case R_XC16X_POF:`
288			`value += addend;`
289			`value %= 0x4000;`
290			`bfd_put_16 (input_bfd, value, hit_data);`
291			`return bfd_reloc_ok;`
292
293			`/* Following case is to find segment number from actual`
294			`address for this divide value by 64k i.e. segment size. */`
295
296			`case R_XC16X_SEG:`
297			`value += addend;`
298			`value /= 0x10000;`
299			`bfd_put_16 (input_bfd, value, hit_data);`
300			`return bfd_reloc_ok;`
301
302			`/* Following case is to find segment offset from actual address`
303			`for this take modulo of value by 64k i.e. segment size. */`
304
305			`case R_XC16X_SOF:`
306			`value += addend;`
307			`value %= 0x10000;`
308			`bfd_put_16 (input_bfd, value, hit_data);`
309			`return bfd_reloc_ok;`
310
311			`case R_XC16X_ABS_32:`
312			`if (!strstr (input_section->name,".debug"))`
313			`{`
314			`value += addend;`
315			`val1 = value;`
316			`value %= 0x4000;`
317			`val1 /= 0x4000;`
318			`val1 = val1 << 16;`
319			`value += val1;`
320			`bfd_put_32 (input_bfd, value, hit_data);`
321			`}`
322			`else`
323			`{`
324			`value += addend;`
325			`bfd_put_32 (input_bfd, value, hit_data);`
326			`}`
327			`return bfd_reloc_ok;`
328
329			`default:`
330			`return bfd_reloc_notsupported;`
331			`}`
332			`}`
333
334			`static bfd_boolean`
335			`elf32_xc16x_relocate_section (bfd *output_bfd,`
336			`struct bfd_link_info *info,`
337			`bfd *input_bfd,`
338			`asection *input_section,`
339			`bfd_byte *contents,`
340			`Elf_Internal_Rela *relocs,`
341			`Elf_Internal_Sym *local_syms,`
342			`asection **local_sections)`
343			`{`
344			`Elf_Internal_Shdr *symtab_hdr;`
345			`struct elf_link_hash_entry **sym_hashes;`
346			`Elf_Internal_Rela rel, relend;`
347
348			`symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;`
349			`sym_hashes = elf_sym_hashes (input_bfd);`
350
351			`rel = relocs;`
352			`relend = relocs + input_section->reloc_count;`
353			`for (; rel < relend; rel++)`
354			`{`
355			`unsigned int r_type;`
356			`unsigned long r_symndx;`
357			`Elf_Internal_Sym *sym;`
358			`asection *sec;`
359			`struct elf_link_hash_entry *h;`
360			`bfd_vma relocation;`
361
362			`/* This is a final link. */`
363			`r_symndx = ELF32_R_SYM (rel->r_info);`
364			`r_type = ELF32_R_TYPE (rel->r_info);`
365			`h = NULL;`
366			`sym = NULL;`
367			`sec = NULL;`
368			`if (r_symndx < symtab_hdr->sh_info)`
369			`{`
370			`sym = local_syms + r_symndx;`
371			`sec = local_sections[r_symndx];`
372			`relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);`
373			`}`
374			`else`
375			`{`
376			`bfd_boolean unresolved_reloc, warned;`
377
378			`RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,`
379			`r_symndx, symtab_hdr, sym_hashes,`
380			`h, sec, relocation,`
381			`unresolved_reloc, warned);`
382			`}`
383
384			`if (sec != NULL && elf_discarded_section (sec))`
385			`{`
386			`/* For relocs against symbols from removed linkonce sections,`
387			`or sections discarded by a linker script, we just want the`
388			`section contents zeroed. Avoid any special processing. */`
389			`reloc_howto_type *howto;`
390			`howto = xc16x_reloc_type_lookup (input_bfd, r_type);`
391			`_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);`
392			`rel->r_info = 0;`
393			`rel->r_addend = 0;`
394			`continue;`
395			`}`
396
397			`if (info->relocatable)`
398			`continue;`
399
400			`elf32_xc16x_final_link_relocate (r_type, input_bfd, output_bfd,`
401			`input_section,`
402			`contents, rel->r_offset,`
403			`relocation, rel->r_addend,`
404			`info, sec, h == NULL);`
405			`}`
406
407			`return TRUE;`
408			`}`
409
410
411			`static void`
412			`elf32_xc16x_final_write_processing (bfd *abfd,`
413			`bfd_boolean linker ATTRIBUTE_UNUSED)`
414			`{`
415			`unsigned long val;`
416
417			`switch (bfd_get_mach (abfd))`
418			`{`
419			`default:`
420			`case bfd_mach_xc16x:`
421			`val = 0x1000;`
422			`break;`
423
424			`case bfd_mach_xc16xl:`
425			`val = 0x1001;`
426			`break;`
427
428			`case bfd_mach_xc16xs:`
429			`val = 0x1002;`
430			`break;`
431			`}`
432
433			`elf_elfheader (abfd)->e_flags \|= val;`
434			`}`
435
436			`static unsigned long`
437			`elf32_xc16x_mach (flagword flags)`
438			`{`
439			`switch (flags)`
440			`{`
441			`case 0x1000:`
442			`default:`
443			`return bfd_mach_xc16x;`
444
445			`case 0x1001:`
446			`return bfd_mach_xc16xl;`
447
448			`case 0x1002:`
449			`return bfd_mach_xc16xs;`
450			`}`
451			`}`
452
453
454			`static bfd_boolean`
455			`elf32_xc16x_object_p (bfd *abfd)`
456			`{`
457			`bfd_default_set_arch_mach (abfd, bfd_arch_xc16x,`
458			`elf32_xc16x_mach (elf_elfheader (abfd)->e_flags));`
459			`return TRUE;`
460			`}`
461
462
463			`#define ELF_ARCH bfd_arch_xc16x`
464			`#define ELF_MACHINE_CODE EM_XC16X`
465			`#define ELF_MAXPAGESIZE 0x100`
466
467			`#define TARGET_LITTLE_SYM bfd_elf32_xc16x_vec`
468			`#define TARGET_LITTLE_NAME "elf32-xc16x"`
469			`#define elf_backend_final_write_processing elf32_xc16x_final_write_processing`
470			`#define elf_backend_object_p elf32_xc16x_object_p`
471			`#define elf_backend_can_gc_sections 1`
472			`#define bfd_elf32_bfd_reloc_type_lookup xc16x_reloc_type_lookup`
473			`#define bfd_elf32_bfd_reloc_name_lookup xc16x_reloc_name_lookup`
474			`#define elf_info_to_howto elf32_xc16x_info_to_howto`
475			`#define elf_info_to_howto_rel elf32_xc16x_info_to_howto`
476			`#define elf_backend_relocate_section elf32_xc16x_relocate_section`
477			`#define elf_backend_rela_normal 1`
478
479			`#include "elf32-target.h"`