mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-05 02:47:05 +00:00
0a6a3ebe97
* elf32-m68hc11.c: Likewise. * elf32-m68hc12.c: Likewise. * elf32-m68hc1x.h: Likewise.
578 lines
18 KiB
C
578 lines
18 KiB
C
/* Motorola 68HC12-specific support for 32-bit ELF
|
||
Copyright 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
|
||
Contributed by Stephane Carrez (stcarrez@nerim.fr)
|
||
(Heavily copied from the D10V port by Martin Hunt (hunt@cygnus.com))
|
||
|
||
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 2 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
||
#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"
|
||
|
||
/* Relocation functions. */
|
||
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 *);
|
||
|
||
/* Trampoline generation. */
|
||
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 *));
|
||
|
||
/* Use REL instead of RELA to save space */
|
||
#define USE_REL 1
|
||
|
||
/* The 68HC12 microcontroler has a memory bank switching system
|
||
with a 16Kb window in the 64Kb address space. The extended memory
|
||
is mapped in the 16Kb window (at 0x8000). The page register controls
|
||
which 16Kb bank is mapped. The call/rtc instructions take care of
|
||
bank switching in function calls/returns.
|
||
|
||
For GNU Binutils to work, we consider there is a physical memory
|
||
at 0..0x0ffff and a kind of virtual memory above that. Symbols
|
||
in virtual memory have their addresses treated in a special way
|
||
when disassembling and when linking.
|
||
|
||
For the linker to work properly, we must always relocate the virtual
|
||
memory as if it is mapped at 0x8000. When a 16-bit relocation is
|
||
made in the virtual memory, we check that it does not cross the
|
||
memory bank where it is used. This would involve a page change
|
||
which would be wrong. The 24-bit relocation is for that and it
|
||
treats the address as a physical address + page number.
|
||
|
||
|
||
Banked
|
||
Address Space
|
||
| | Page n
|
||
+---------------+ 0x1010000
|
||
| |
|
||
| jsr _foo |
|
||
| .. | Page 3
|
||
| _foo: |
|
||
+---------------+ 0x100C000
|
||
| |
|
||
| call _bar |
|
||
| .. | Page 2
|
||
| _bar: |
|
||
+---------------+ 0x1008000
|
||
/------>| |
|
||
| | call _foo | Page 1
|
||
| | |
|
||
| +---------------+ 0x1004000
|
||
Physical | | |
|
||
Address Space | | | Page 0
|
||
| | |
|
||
+-----------+ 0x00FFFF | +---------------+ 0x1000000
|
||
| | |
|
||
| call _foo | |
|
||
| | |
|
||
+-----------+ 0x00BFFF -+---/
|
||
| | |
|
||
| | |
|
||
| | 16K |
|
||
| | |
|
||
+-----------+ 0x008000 -+
|
||
| |
|
||
| |
|
||
= =
|
||
| |
|
||
| |
|
||
+-----------+ 0000
|
||
|
||
|
||
The 'call _foo' must be relocated with page 3 and 16-bit address
|
||
mapped at 0x8000.
|
||
|
||
The 3-bit and 16-bit PC rel relocation is only used by 68HC12. */
|
||
static reloc_howto_type elf_m68hc11_howto_table[] = {
|
||
/* This reloc does nothing. */
|
||
HOWTO (R_M68HC11_NONE, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont,/* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_NONE", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 8 bit absolute relocation */
|
||
HOWTO (R_M68HC11_8, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
8, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0x00ff, /* src_mask */
|
||
0x00ff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 8 bit absolute relocation (upper address) */
|
||
HOWTO (R_M68HC11_HI8, /* type */
|
||
8, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
8, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_HI8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0x00ff, /* src_mask */
|
||
0x00ff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 8 bit absolute relocation (upper address) */
|
||
HOWTO (R_M68HC11_LO8, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
8, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_LO8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0x00ff, /* src_mask */
|
||
0x00ff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 8 bit PC-rel relocation */
|
||
HOWTO (R_M68HC11_PCREL_8, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
8, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_PCREL_8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0x00ff, /* src_mask */
|
||
0x00ff, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
/* A 16 bit absolute relocation */
|
||
HOWTO (R_M68HC11_16, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont /*bitfield */ , /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_16", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 32 bit absolute relocation. This one is never used for the
|
||
code relocation. It's used by gas for -gstabs generation. */
|
||
HOWTO (R_M68HC11_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_M68HC12_32", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 3 bit absolute relocation */
|
||
HOWTO (R_M68HC11_3B, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
3, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_4B", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0x003, /* src_mask */
|
||
0x003, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 16 bit PC-rel relocation */
|
||
HOWTO (R_M68HC11_PCREL_16, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_M68HC12_PCREL_16", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
/* GNU extension to record C++ vtable hierarchy */
|
||
HOWTO (R_M68HC11_GNU_VTINHERIT, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
NULL, /* special_function */
|
||
"R_M68HC11_GNU_VTINHERIT", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* GNU extension to record C++ vtable member usage */
|
||
HOWTO (R_M68HC11_GNU_VTENTRY, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
||
"R_M68HC11_GNU_VTENTRY", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 24 bit relocation */
|
||
HOWTO (R_M68HC11_24, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
24, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
m68hc11_elf_special_reloc, /* special_function */
|
||
"R_M68HC12_24", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffffff, /* src_mask */
|
||
0xffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 16-bit low relocation */
|
||
HOWTO (R_M68HC11_LO16, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
m68hc11_elf_special_reloc,/* special_function */
|
||
"R_M68HC12_LO16", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A page relocation */
|
||
HOWTO (R_M68HC11_PAGE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
8, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
m68hc11_elf_special_reloc,/* special_function */
|
||
"R_M68HC12_PAGE", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0x00ff, /* src_mask */
|
||
0x00ff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
EMPTY_HOWTO (14),
|
||
EMPTY_HOWTO (15),
|
||
EMPTY_HOWTO (16),
|
||
EMPTY_HOWTO (17),
|
||
EMPTY_HOWTO (18),
|
||
EMPTY_HOWTO (19),
|
||
|
||
/* Mark beginning of a jump instruction (any form). */
|
||
HOWTO (R_M68HC11_RL_JUMP, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
m68hc11_elf_ignore_reloc, /* special_function */
|
||
"R_M68HC12_RL_JUMP", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
/* Mark beginning of Gcc relaxation group instruction. */
|
||
HOWTO (R_M68HC11_RL_GROUP, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
m68hc11_elf_ignore_reloc, /* special_function */
|
||
"R_M68HC12_RL_GROUP", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
};
|
||
|
||
/* Map BFD reloc types to M68HC11 ELF reloc types. */
|
||
|
||
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;
|
||
}
|
||
|
||
/* Set the howto pointer for an M68HC11 ELF reloc. */
|
||
|
||
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];
|
||
}
|
||
|
||
|
||
/* Far trampoline generation. */
|
||
|
||
/* Build a 68HC12 trampoline stub. */
|
||
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;
|
||
|
||
/* Massage our args to the form they really have. */
|
||
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;
|
||
|
||
/* Make a note of the offset within the stubs for this entry. */
|
||
stub_entry->stub_offset = stub_sec->_raw_size;
|
||
stub_sec->_raw_size += 7;
|
||
loc = stub_sec->contents + stub_entry->stub_offset;
|
||
|
||
stub_bfd = stub_sec->owner;
|
||
|
||
/* Create the trampoline call stub:
|
||
|
||
ldy #%addr(symbol)
|
||
call %page(symbol), __trampoline
|
||
|
||
*/
|
||
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);
|
||
|
||
/* ldy #%page(sym) */
|
||
bfd_put_8 (stub_bfd, 0xCD, loc);
|
||
bfd_put_16 (stub_bfd, phys_addr, loc + 1);
|
||
loc += 3;
|
||
|
||
/* call %page(sym), __trampoline */
|
||
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;
|
||
}
|
||
|
||
/* As above, but don't actually build the stub. Just bump offset so
|
||
we know stub section sizes. */
|
||
|
||
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;
|
||
|
||
/* Massage our args to the form they really have. */
|
||
stub_entry = (struct elf32_m68hc11_stub_hash_entry *) gen_entry;
|
||
|
||
stub_entry->stub_sec->_raw_size += 7;
|
||
return TRUE;
|
||
}
|
||
|
||
/* Create a 68HC12 ELF linker hash table. */
|
||
|
||
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;
|
||
}
|
||
|
||
/* Specific sections:
|
||
- The .page0 is a data section that is mapped in [0x0000..0x00FF].
|
||
Page0 accesses are faster on the M68HC12.
|
||
- The .vectors is the section that represents the interrupt
|
||
vectors. */
|
||
static struct bfd_elf_special_section const elf32_m68hc12_special_sections[]=
|
||
{
|
||
{ ".eeprom", 7, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
|
||
{ ".softregs", 9, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
|
||
{ ".page0", 6, 0, SHT_PROGBITS, 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"
|