#include "bfd.h"
#include "sysdep.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 [] =
{
HOWTO (R_XC16X_NONE,
0,
1,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_XC16X_NONE",
FALSE,
0,
0,
FALSE),
HOWTO (R_XC16X_ABS_8,
0,
0,
8,
FALSE,
8,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_XC16X_ABS_8",
TRUE,
0x0000,
0x00ff,
FALSE),
HOWTO (R_XC16X_ABS_16,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_XC16X_ABS_16",
TRUE,
0x00000000,
0x0000ffff,
FALSE),
HOWTO (R_XC16X_ABS_32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_XC16X_ABS_32",
TRUE,
0x00000000,
0xffffffff,
FALSE),
HOWTO (R_XC16X_8_PCREL,
0,
0,
8,
TRUE,
8,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_XC16X_8_PCREL",
FALSE,
0x0000,
0x00ff,
TRUE),
HOWTO (R_XC16X_PAG,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_XC16X_PAG",
TRUE,
0x00000000,
0x0000ffff,
FALSE),
HOWTO (R_XC16X_POF,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_XC16X_POF",
TRUE,
0x00000000,
0x0000ffff,
FALSE),
HOWTO (R_XC16X_SEG,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_XC16X_SEG",
TRUE,
0x00000000,
0x0000ffff,
FALSE),
HOWTO (R_XC16X_SOF,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_XC16X_SOF",
TRUE,
0x00000000,
0x0000ffff,
FALSE)
};
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},
};
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 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;
case R_XC16X_PAG:
value += addend;
value /= 0x4000;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_XC16X_POF:
value += addend;
value %= 0x4000;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_XC16X_SEG:
value += addend;
value /= 0x10000;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
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;
if (info->relocatable)
return TRUE;
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;
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);
}
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 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"