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/* Infineon XC16X-specific support for 16-bit ELF.
   Copyright 2006, 2007  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 "elf/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;
      bfd_reloc_status_type r;
 
      /* 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;
 
      r = 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/] [binutils-2.18.50/] [bfd/] [elf32-xc16x.c] - Blame information for rev 156

Line No.	Rev	Author	Line
1	38	julius	`/* Infineon XC16X-specific support for 16-bit ELF.`
2			`Copyright 2006, 2007 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 "elf/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			`bfd_reloc_status_type r;`
362
363			`/* This is a final link. */`
364			`r_symndx = ELF32_R_SYM (rel->r_info);`
365			`r_type = ELF32_R_TYPE (rel->r_info);`
366			`h = NULL;`
367			`sym = NULL;`
368			`sec = NULL;`
369			`if (r_symndx < symtab_hdr->sh_info)`
370			`{`
371			`sym = local_syms + r_symndx;`
372			`sec = local_sections[r_symndx];`
373			`relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);`
374			`}`
375			`else`
376			`{`
377			`bfd_boolean unresolved_reloc, warned;`
378
379			`RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,`
380			`r_symndx, symtab_hdr, sym_hashes,`
381			`h, sec, relocation,`
382			`unresolved_reloc, warned);`
383			`}`
384
385			`if (sec != NULL && elf_discarded_section (sec))`
386			`{`
387			`/* For relocs against symbols from removed linkonce sections,`
388			`or sections discarded by a linker script, we just want the`
389			`section contents zeroed. Avoid any special processing. */`
390			`reloc_howto_type *howto;`
391			`howto = xc16x_reloc_type_lookup (input_bfd, r_type);`
392			`_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);`
393			`rel->r_info = 0;`
394			`rel->r_addend = 0;`
395			`continue;`
396			`}`
397
398			`if (info->relocatable)`
399			`continue;`
400
401			`r = elf32_xc16x_final_link_relocate (r_type, input_bfd, output_bfd,`
402			`input_section,`
403			`contents, rel->r_offset,`
404			`relocation, rel->r_addend,`
405			`info, sec, h == NULL);`
406			`}`
407
408			`return TRUE;`
409			`}`
410
411
412			`static void`
413			`elf32_xc16x_final_write_processing (bfd *abfd,`
414			`bfd_boolean linker ATTRIBUTE_UNUSED)`
415			`{`
416			`unsigned long val;`
417
418			`switch (bfd_get_mach (abfd))`
419			`{`
420			`default:`
421			`case bfd_mach_xc16x:`
422			`val = 0x1000;`
423			`break;`
424
425			`case bfd_mach_xc16xl:`
426			`val = 0x1001;`
427			`break;`
428
429			`case bfd_mach_xc16xs:`
430			`val = 0x1002;`
431			`break;`
432			`}`
433
434			`elf_elfheader (abfd)->e_flags \|= val;`
435			`}`
436
437			`static unsigned long`
438			`elf32_xc16x_mach (flagword flags)`
439			`{`
440			`switch (flags)`
441			`{`
442			`case 0x1000:`
443			`default:`
444			`return bfd_mach_xc16x;`
445
446			`case 0x1001:`
447			`return bfd_mach_xc16xl;`
448
449			`case 0x1002:`
450			`return bfd_mach_xc16xs;`
451			`}`
452			`}`
453
454
455			`static bfd_boolean`
456			`elf32_xc16x_object_p (bfd *abfd)`
457			`{`
458			`bfd_default_set_arch_mach (abfd, bfd_arch_xc16x,`
459			`elf32_xc16x_mach (elf_elfheader (abfd)->e_flags));`
460			`return TRUE;`
461			`}`
462
463
464			`#define ELF_ARCH bfd_arch_xc16x`
465			`#define ELF_MACHINE_CODE EM_XC16X`
466			`#define ELF_MAXPAGESIZE 0x100`
467
468			`#define TARGET_LITTLE_SYM bfd_elf32_xc16x_vec`
469			`#define TARGET_LITTLE_NAME "elf32-xc16x"`
470			`#define elf_backend_final_write_processing elf32_xc16x_final_write_processing`
471			`#define elf_backend_object_p elf32_xc16x_object_p`
472			`#define elf_backend_can_gc_sections 1`
473			`#define bfd_elf32_bfd_reloc_type_lookup xc16x_reloc_type_lookup`
474			`#define bfd_elf32_bfd_reloc_name_lookup xc16x_reloc_name_lookup`
475			`#define elf_info_to_howto elf32_xc16x_info_to_howto`
476			`#define elf_info_to_howto_rel elf32_xc16x_info_to_howto`
477			`#define elf_backend_relocate_section elf32_xc16x_relocate_section`
478			`#define elf_backend_rela_normal 1`
479
480			`#include "elf32-target.h"`