#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf32-m68hc1x.h"
#include "elf/m68hc11.h"
#include "opcode/m68hc11.h"
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
(bfd *, bfd_reloc_code_real_type);
static void m68hc11_info_to_howto_rel
(bfd *, arelent *, Elf_Internal_Rela *);
static bfd_boolean m68hc12_elf_size_one_stub
(struct bfd_hash_entry *gen_entry, void *in_arg);
static bfd_boolean m68hc12_elf_build_one_stub
(struct bfd_hash_entry *gen_entry, void *in_arg);
static struct bfd_link_hash_table* m68hc12_elf_bfd_link_hash_table_create
(bfd*);
static bfd_boolean m68hc12_elf_set_mach_from_flags PARAMS ((bfd *));
#define USE_REL 1
static reloc_howto_type elf_m68hc11_howto_table[] = {
HOWTO (R_M68HC11_NONE,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_M68HC12_NONE",
FALSE,
0,
0,
FALSE),
HOWTO (R_M68HC11_8,
0,
0,
8,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_M68HC12_8",
FALSE,
0x00ff,
0x00ff,
FALSE),
HOWTO (R_M68HC11_HI8,
8,
0,
8,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_M68HC12_HI8",
FALSE,
0x00ff,
0x00ff,
FALSE),
HOWTO (R_M68HC11_LO8,
0,
0,
8,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_M68HC12_LO8",
FALSE,
0x00ff,
0x00ff,
FALSE),
HOWTO (R_M68HC11_PCREL_8,
0,
0,
8,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_M68HC12_PCREL_8",
FALSE,
0x00ff,
0x00ff,
TRUE),
HOWTO (R_M68HC11_16,
0,
1,
16,
FALSE,
0,
complain_overflow_dont ,
bfd_elf_generic_reloc,
"R_M68HC12_16",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_M68HC11_32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_M68HC12_32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_M68HC11_3B,
0,
0,
3,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_M68HC12_4B",
FALSE,
0x003,
0x003,
FALSE),
HOWTO (R_M68HC11_PCREL_16,
0,
1,
16,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_M68HC12_PCREL_16",
FALSE,
0xffff,
0xffff,
TRUE),
HOWTO (R_M68HC11_GNU_VTINHERIT,
0,
1,
0,
FALSE,
0,
complain_overflow_dont,
NULL,
"R_M68HC11_GNU_VTINHERIT",
FALSE,
0,
0,
FALSE),
HOWTO (R_M68HC11_GNU_VTENTRY,
0,
1,
0,
FALSE,
0,
complain_overflow_dont,
_bfd_elf_rel_vtable_reloc_fn,
"R_M68HC11_GNU_VTENTRY",
FALSE,
0,
0,
FALSE),
HOWTO (R_M68HC11_24,
0,
2,
24,
FALSE,
0,
complain_overflow_dont,
m68hc11_elf_special_reloc,
"R_M68HC12_24",
FALSE,
0xffffff,
0xffffff,
FALSE),
HOWTO (R_M68HC11_LO16,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
m68hc11_elf_special_reloc,
"R_M68HC12_LO16",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_M68HC11_PAGE,
0,
0,
8,
FALSE,
0,
complain_overflow_dont,
m68hc11_elf_special_reloc,
"R_M68HC12_PAGE",
FALSE,
0x00ff,
0x00ff,
FALSE),
EMPTY_HOWTO (14),
EMPTY_HOWTO (15),
EMPTY_HOWTO (16),
EMPTY_HOWTO (17),
EMPTY_HOWTO (18),
EMPTY_HOWTO (19),
HOWTO (R_M68HC11_RL_JUMP,
0,
1,
0,
FALSE,
0,
complain_overflow_dont,
m68hc11_elf_ignore_reloc,
"R_M68HC12_RL_JUMP",
TRUE,
0,
0,
TRUE),
HOWTO (R_M68HC11_RL_GROUP,
0,
1,
0,
FALSE,
0,
complain_overflow_dont,
m68hc11_elf_ignore_reloc,
"R_M68HC12_RL_GROUP",
TRUE,
0,
0,
TRUE),
};
struct m68hc11_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
static const struct m68hc11_reloc_map m68hc11_reloc_map[] = {
{BFD_RELOC_NONE, R_M68HC11_NONE,},
{BFD_RELOC_8, R_M68HC11_8},
{BFD_RELOC_M68HC11_HI8, R_M68HC11_HI8},
{BFD_RELOC_M68HC11_LO8, R_M68HC11_LO8},
{BFD_RELOC_8_PCREL, R_M68HC11_PCREL_8},
{BFD_RELOC_16_PCREL, R_M68HC11_PCREL_16},
{BFD_RELOC_16, R_M68HC11_16},
{BFD_RELOC_32, R_M68HC11_32},
{BFD_RELOC_M68HC11_3B, R_M68HC11_3B},
{BFD_RELOC_VTABLE_INHERIT, R_M68HC11_GNU_VTINHERIT},
{BFD_RELOC_VTABLE_ENTRY, R_M68HC11_GNU_VTENTRY},
{BFD_RELOC_M68HC11_LO16, R_M68HC11_LO16},
{BFD_RELOC_M68HC11_PAGE, R_M68HC11_PAGE},
{BFD_RELOC_M68HC11_24, R_M68HC11_24},
{BFD_RELOC_M68HC11_RL_JUMP, R_M68HC11_RL_JUMP},
{BFD_RELOC_M68HC11_RL_GROUP, R_M68HC11_RL_GROUP},
};
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0;
i < sizeof (m68hc11_reloc_map) / sizeof (struct m68hc11_reloc_map);
i++)
{
if (m68hc11_reloc_map[i].bfd_reloc_val == code)
return &elf_m68hc11_howto_table[m68hc11_reloc_map[i].elf_reloc_val];
}
return NULL;
}
static void
m68hc11_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
arelent *cache_ptr, Elf_Internal_Rela *dst)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_M68HC11_max);
cache_ptr->howto = &elf_m68hc11_howto_table[r_type];
}
static bfd_boolean
m68hc12_elf_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
{
struct elf32_m68hc11_stub_hash_entry *stub_entry;
struct bfd_link_info *info;
struct m68hc11_elf_link_hash_table *htab;
asection *stub_sec;
bfd *stub_bfd;
bfd_byte *loc;
bfd_vma sym_value, phys_page, phys_addr;
stub_entry = (struct elf32_m68hc11_stub_hash_entry *) gen_entry;
info = (struct bfd_link_info *) in_arg;
htab = m68hc11_elf_hash_table (info);
stub_sec = stub_entry->stub_sec;
stub_entry->stub_offset = stub_sec->size;
stub_sec->size += 7;
loc = stub_sec->contents + stub_entry->stub_offset;
stub_bfd = stub_sec->owner;
sym_value = (stub_entry->target_value
+ stub_entry->target_section->output_offset
+ stub_entry->target_section->output_section->vma);
phys_addr = m68hc11_phys_addr (&htab->pinfo, sym_value);
phys_page = m68hc11_phys_page (&htab->pinfo, sym_value);
bfd_put_8 (stub_bfd, 0xCD, loc);
bfd_put_16 (stub_bfd, phys_addr, loc + 1);
loc += 3;
bfd_put_8 (stub_bfd, 0x4a, loc);
bfd_put_16 (stub_bfd, htab->pinfo.trampoline_addr, loc + 1);
bfd_put_8 (stub_bfd, phys_page, loc + 3);
return TRUE;
}
static bfd_boolean
m68hc12_elf_size_one_stub (struct bfd_hash_entry *gen_entry,
void *in_arg ATTRIBUTE_UNUSED)
{
struct elf32_m68hc11_stub_hash_entry *stub_entry;
stub_entry = (struct elf32_m68hc11_stub_hash_entry *) gen_entry;
stub_entry->stub_sec->size += 7;
return TRUE;
}
static struct bfd_link_hash_table *
m68hc12_elf_bfd_link_hash_table_create (bfd *abfd)
{
struct m68hc11_elf_link_hash_table *ret;
ret = m68hc11_elf_hash_table_create (abfd);
if (ret == (struct m68hc11_elf_link_hash_table *) NULL)
return NULL;
ret->size_one_stub = m68hc12_elf_size_one_stub;
ret->build_one_stub = m68hc12_elf_build_one_stub;
return &ret->root.root;
}
static bfd_boolean
m68hc12_elf_set_mach_from_flags (bfd *abfd)
{
flagword flags = elf_elfheader (abfd)->e_flags;
switch (flags & EF_M68HC11_MACH_MASK)
{
case EF_M68HC12_MACH:
bfd_default_set_arch_mach (abfd, bfd_arch_m68hc12, bfd_mach_m6812);
break;
case EF_M68HCS12_MACH:
bfd_default_set_arch_mach (abfd, bfd_arch_m68hc12, bfd_mach_m6812s);
break;
case EF_M68HC11_GENERIC:
bfd_default_set_arch_mach (abfd, bfd_arch_m68hc12,
bfd_mach_m6812_default);
break;
default:
return FALSE;
}
return TRUE;
}
static const struct bfd_elf_special_section elf32_m68hc12_special_sections[] =
{
{ ".eeprom", 7, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
{ ".page0", 6, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
{ ".softregs", 9, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
{ ".vectors", 8, 0, SHT_PROGBITS, SHF_ALLOC },
{ NULL, 0, 0, 0, 0 }
};
#define ELF_ARCH bfd_arch_m68hc12
#define ELF_MACHINE_CODE EM_68HC12
#define ELF_MAXPAGESIZE 0x1000
#define TARGET_BIG_SYM bfd_elf32_m68hc12_vec
#define TARGET_BIG_NAME "elf32-m68hc12"
#define elf_info_to_howto 0
#define elf_info_to_howto_rel m68hc11_info_to_howto_rel
#define elf_backend_gc_mark_hook elf32_m68hc11_gc_mark_hook
#define elf_backend_gc_sweep_hook elf32_m68hc11_gc_sweep_hook
#define elf_backend_check_relocs elf32_m68hc11_check_relocs
#define elf_backend_relocate_section elf32_m68hc11_relocate_section
#define elf_backend_object_p m68hc12_elf_set_mach_from_flags
#define elf_backend_final_write_processing 0
#define elf_backend_can_gc_sections 1
#define elf_backend_special_sections elf32_m68hc12_special_sections
#define elf_backend_post_process_headers elf32_m68hc11_post_process_headers
#define elf_backend_add_symbol_hook elf32_m68hc11_add_symbol_hook
#define bfd_elf32_bfd_link_hash_table_create \
m68hc12_elf_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_free \
m68hc11_elf_bfd_link_hash_table_free
#define bfd_elf32_bfd_merge_private_bfd_data \
_bfd_m68hc11_elf_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags _bfd_m68hc11_elf_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data \
_bfd_m68hc11_elf_print_private_bfd_data
#include "elf32-target.h"