/* Motorola 68HC12-specific support for 32-bit ELF
- Copyright 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999-2020 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 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 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.
+ 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. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.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
+static bfd_boolean 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
Banked
Address Space
- | | Page n
+ | | Page n
+---------------+ 0x1010000
- | |
- | jsr _foo |
- | .. | Page 3
- | _foo: |
+ | |
+ | jsr _foo |
+ | .. | Page 3
+ | _foo: |
+---------------+ 0x100C000
- | |
- | call _bar |
- | .. | Page 2
- | _bar: |
+ | |
+ | call _bar |
+ | .. | Page 2
+ | _bar: |
+---------------+ 0x1008000
- /------>| |
- | | call _foo | Page 1
- | | |
+ /------>| |
+ | | call _foo | Page 1
+ | | |
| +---------------+ 0x1004000
- Physical | | |
- Address Space | | | Page 0
- | | |
+ Physical | | |
+ Address Space | | | Page 0
+ | | |
+-----------+ 0x00FFFF | +---------------+ 0x1000000
| | |
| call _foo | |
| | |
+-----------+ 0x00BFFF -+---/
- | | |
+ | | |
| | |
| | 16K |
| | |
/* This reloc does nothing. */
HOWTO (R_M68HC11_NONE, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
- TRUE), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* A 16 bit absolute relocation */
HOWTO (R_M68HC11_16, /* type */
FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- TRUE), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* GNU extension to record C++ vtable hierarchy */
HOWTO (R_M68HC11_GNU_VTINHERIT, /* type */
FALSE), /* pcrel_offset */
/* A 24 bit relocation */
- HOWTO (R_M68HC11_24, /* type */
+ HOWTO (R_M68HC11_24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
24, /* bitsize */
FALSE), /* pcrel_offset */
/* A 16-bit low relocation */
- HOWTO (R_M68HC11_LO16, /* type */
+ HOWTO (R_M68HC11_LO16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE), /* pcrel_offset */
/* A page relocation */
- HOWTO (R_M68HC11_PAGE, /* type */
+ HOWTO (R_M68HC11_PAGE, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (14),
- EMPTY_HOWTO (15),
- EMPTY_HOWTO (16),
- EMPTY_HOWTO (17),
- EMPTY_HOWTO (18),
- EMPTY_HOWTO (19),
+
+ /* A 16 bit absolute relocation. */
+ HOWTO (R_M68HC12_16B, /* 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_M68HC12_16B", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 9 bit PC-rel relocation. */
+ HOWTO (R_M68HC12_PCREL_9, /* type */
+ 1, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 10, /* bitsize (result is >>1) */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M68HC12_PCREL_9", /* name */
+ TRUE, /* partial_inplace */
+ 0xfe00, /* src_mask */
+ 0x01ff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A 10 bit PC-rel relocation. */
+ HOWTO (R_M68HC12_PCREL_10, /* type */
+ 1, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 11, /* bitsize (result is >>1) */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M68HC12_PCREL_10", /* name */
+ TRUE, /* partial_inplace */
+ 0xfc00, /* src_mask */
+ 0x03ff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A 8 bit absolute relocation (upper address). */
+ HOWTO (R_M68HC12_HI8XG, /* 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_HI8XG", /* name */
+ FALSE, /* partial_inplace */
+ 0x00ff, /* src_mask */
+ 0x00ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 8 bit absolute relocation (lower address). */
+ HOWTO (R_M68HC12_LO8XG, /* 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_LO8XG", /* name */
+ FALSE, /* partial_inplace */
+ 0x00ff, /* src_mask */
+ 0x00ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* Mark beginning of a jump instruction (any form). */
HOWTO (R_M68HC11_RL_JUMP, /* type */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- TRUE), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* Mark beginning of Gcc relaxation group instruction. */
HOWTO (R_M68HC11_RL_GROUP, /* type */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- TRUE), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
};
/* Map BFD reloc types to M68HC11 ELF reloc types. */
unsigned char elf_reloc_val;
};
-static const struct m68hc11_reloc_map m68hc11_reloc_map[] = {
+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_RL_JUMP, R_M68HC11_RL_JUMP},
{BFD_RELOC_M68HC11_RL_GROUP, R_M68HC11_RL_GROUP},
+
+ {BFD_RELOC_M68HC12_16B, R_M68HC12_16B},
+
+ {BFD_RELOC_M68HC12_9_PCREL, R_M68HC12_PCREL_9},
+ {BFD_RELOC_M68HC12_10_PCREL, R_M68HC12_PCREL_10},
+ {BFD_RELOC_M68HC12_HI8XG, R_M68HC12_HI8XG},
+ {BFD_RELOC_M68HC12_LO8XG, R_M68HC12_LO8XG},
};
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- bfd_reloc_code_real_type code)
+ bfd_reloc_code_real_type code)
{
unsigned int i;
return NULL;
}
+static reloc_howto_type *
+bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < (sizeof (elf_m68hc11_howto_table)
+ / sizeof (elf_m68hc11_howto_table[0]));
+ i++)
+ if (elf_m68hc11_howto_table[i].name != NULL
+ && strcasecmp (elf_m68hc11_howto_table[i].name, r_name) == 0)
+ return &elf_m68hc11_howto_table[i];
+
+ 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)
+static bfd_boolean
+m68hc11_info_to_howto_rel (bfd *abfd,
+ 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);
+ if (r_type >= (unsigned int) R_M68HC11_max)
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
cache_ptr->howto = &elf_m68hc11_howto_table[r_type];
+ return TRUE;
}
\f
stub_entry = (struct elf32_m68hc11_stub_hash_entry *) gen_entry;
info = (struct bfd_link_info *) in_arg;
+ /* Fail if the target section could not be assigned to an output
+ section. The user should fix his linker script. */
+ if (stub_entry->target_section->output_section == NULL
+ && info->non_contiguous_regions)
+ info->callbacks->einfo (_("%F%P: Could not assign '%pA' to an output section. "
+ "Retry without --enable-non-contiguous-regions.\n"),
+ stub_entry->target_section);
+
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;
+ 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);
+ + 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);
static bfd_boolean
m68hc12_elf_size_one_stub (struct bfd_hash_entry *gen_entry,
- void *in_arg ATTRIBUTE_UNUSED)
+ 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;
+ stub_entry->stub_sec->size += 7;
return TRUE;
}
break;
case EF_M68HC11_GENERIC:
bfd_default_set_arch_mach (abfd, bfd_arch_m68hc12,
- bfd_mach_m6812_default);
+ bfd_mach_m6812_default);
break;
default:
return FALSE;
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[]=
+static const struct bfd_elf_special_section 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 }
+ { STRING_COMMA_LEN (".eeprom"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".page0"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".softregs"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".vectors"), 0, SHT_PROGBITS, SHF_ALLOC },
+ { NULL, 0, 0, 0, 0 }
};
\f
#define ELF_ARCH bfd_arch_m68hc12
+#define ELF_TARGET_ID M68HC11_ELF_DATA
#define ELF_MACHINE_CODE EM_68HC12
#define ELF_MAXPAGESIZE 0x1000
-#define TARGET_BIG_SYM bfd_elf32_m68hc12_vec
+#define TARGET_BIG_SYM m68hc12_elf32_vec
#define TARGET_BIG_NAME "elf32-m68hc12"
-#define elf_info_to_howto 0
+#define elf_info_to_howto NULL
#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_init_file_header elf32_m68hc11_init_file_header
#define elf_backend_add_symbol_hook elf32_m68hc11_add_symbol_hook
+#define elf_backend_merge_symbol_attribute elf32_m68hc11_merge_symbol_attribute
#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
+ m68hc12_elf_bfd_link_hash_table_create
#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
projects / deliverable / binutils-gdb.git / blobdiff