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authorNick Clifton <nickc@redhat.com>2002-12-30 19:25:13 +0000
committerNick Clifton <nickc@redhat.com>2002-12-30 19:25:13 +0000
commit2469cfa28442dfd5e08b681dbcfd1ff098c6d420 (patch)
tree4350aa576399c91dfdaab6b961bb78759c300727 /bfd/elf32-msp430.c
parent3f8173588efb34476725b62fc46853fd00268139 (diff)
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Add support for msp430.
Diffstat (limited to 'bfd/elf32-msp430.c')
-rw-r--r--bfd/elf32-msp430.c720
1 files changed, 720 insertions, 0 deletions
diff --git a/bfd/elf32-msp430.c b/bfd/elf32-msp430.c
new file mode 100644
index 0000000..694a30f
--- /dev/null
+++ b/bfd/elf32-msp430.c
@@ -0,0 +1,720 @@
+/* MSP430-specific support for 32-bit ELF
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ Contributed by Dmitry Diky <diwil@mail.ru>
+
+ 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 "libiberty.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+#include "elf/msp430.h"
+
+static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
+ PARAMS ((bfd *, bfd_reloc_code_real_type));
+
+static void msp430_info_to_howto_rela
+ PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
+
+static asection *elf32_msp430_gc_mark_hook
+ PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
+
+static bfd_boolean elf32_msp430_gc_sweep_hook
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
+
+static bfd_boolean elf32_msp430_check_relocs
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
+
+static bfd_reloc_status_type msp430_final_link_relocate
+ PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
+ Elf_Internal_Rela *, bfd_vma));
+
+static bfd_boolean elf32_msp430_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
+ Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+
+static void bfd_elf_msp430_final_write_processing
+ PARAMS ((bfd *, bfd_boolean));
+
+static bfd_boolean elf32_msp430_object_p
+ PARAMS ((bfd *));
+
+static void elf32_msp430_post_process_headers
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+/* Use RELA instead of REL. */
+#undef USE_REL
+
+static reloc_howto_type elf_msp430_howto_table[] =
+{
+ HOWTO (R_MSP430_NONE, /* 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_MSP430_NONE", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_MSP430_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_MSP430_32", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 13 bit PC relative relocation. */
+ HOWTO (R_MSP430_10_PCREL, /* type */
+ 1, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 10, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_MSP430_13_PCREL", /* name */
+ FALSE, /* partial_inplace */
+ 0xfff, /* src_mask */
+ 0xfff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A 16 bit absolute relocation. */
+ HOWTO (R_MSP430_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_MSP430_16", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 16 bit absolute relocation for command address. */
+ HOWTO (R_MSP430_16_PCREL, /* type */
+ 1, /* 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_MSP430_16_PCREL", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A 16 bit absolute relocation, byte operations. */
+ HOWTO (R_MSP430_16_BYTE, /* 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_MSP430_16_BYTE", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 16 bit absolute relocation for command address. */
+ HOWTO (R_MSP430_16_PCREL_BYTE,/* type */
+ 1, /* 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_MSP430_16_PCREL_BYTE", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE) /* pcrel_offset */
+};
+
+/* Map BFD reloc types to MSP430 ELF reloc types. */
+
+struct msp430_reloc_map
+{
+ bfd_reloc_code_real_type bfd_reloc_val;
+ unsigned int elf_reloc_val;
+};
+
+static const struct msp430_reloc_map msp430_reloc_map[] =
+ {
+ {BFD_RELOC_NONE, R_MSP430_NONE},
+ {BFD_RELOC_32, R_MSP430_32},
+ {BFD_RELOC_MSP430_10_PCREL, R_MSP430_10_PCREL},
+ {BFD_RELOC_16, R_MSP430_16_BYTE},
+ {BFD_RELOC_MSP430_16_PCREL, R_MSP430_16_PCREL},
+ {BFD_RELOC_MSP430_16, R_MSP430_16},
+ {BFD_RELOC_MSP430_16_PCREL_BYTE, R_MSP430_16_PCREL_BYTE},
+ {BFD_RELOC_MSP430_16_BYTE, R_MSP430_16_BYTE}
+ };
+
+static reloc_howto_type *
+bfd_elf32_bfd_reloc_type_lookup (abfd, code)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ bfd_reloc_code_real_type code;
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE (msp430_reloc_map); i++)
+ if (msp430_reloc_map[i].bfd_reloc_val == code)
+ return &elf_msp430_howto_table[msp430_reloc_map[i].elf_reloc_val];
+
+ return NULL;
+}
+
+/* Set the howto pointer for an MSP430 ELF reloc. */
+
+static void
+msp430_info_to_howto_rela (abfd, cache_ptr, dst)
+ 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_MSP430_max);
+ cache_ptr->howto = &elf_msp430_howto_table[r_type];
+}
+
+static asection *
+elf32_msp430_gc_mark_hook (sec, info, rel, h, sym)
+ asection *sec;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ Elf_Internal_Rela *rel;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+{
+ if (h != NULL)
+ {
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
+
+ case bfd_link_hash_common:
+ return h->root.u.c.p->section;
+
+ default:
+ break;
+ }
+ }
+ }
+ else
+ return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
+
+ return NULL;
+}
+
+static bfd_boolean
+elf32_msp430_gc_sweep_hook (abfd, info, sec, relocs)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ asection *sec ATTRIBUTE_UNUSED;
+ const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
+{
+ /* We don't use got and plt entries for msp430. */
+ return TRUE;
+}
+
+/* Look through the relocs for a section during the first phase.
+ Since we don't do .gots or .plts, we just need to consider the
+ virtual table relocs for gc. */
+
+static bfd_boolean
+elf32_msp430_check_relocs (abfd, info, sec, relocs)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
+ const Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *rel_end;
+
+ if (info->relocateable)
+ return TRUE;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ sym_hashes_end =
+ sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
+ if (!elf_bad_symtab (abfd))
+ sym_hashes_end -= symtab_hdr->sh_info;
+
+ rel_end = relocs + sec->reloc_count;
+ for (rel = relocs; rel < rel_end; rel++)
+ {
+ struct elf_link_hash_entry *h;
+ unsigned long r_symndx;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx < symtab_hdr->sh_info)
+ h = NULL;
+ else
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ }
+
+ return TRUE;
+}
+
+/* Perform a single relocation. By default we use the standard BFD
+ routines, but a few relocs, we have to do them ourselves. */
+
+static bfd_reloc_status_type
+msp430_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel, relocation)
+ reloc_howto_type *howto;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ Elf_Internal_Rela *rel;
+ bfd_vma relocation;
+{
+ bfd_reloc_status_type r = bfd_reloc_ok;
+ bfd_vma x;
+ bfd_signed_vma srel;
+
+ switch (howto->type)
+ {
+ case R_MSP430_10_PCREL:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation;
+ srel += rel->r_addend;
+ srel -= rel->r_offset;
+ srel -= 2; /* Branch instructions add 2 to the PC... */
+ srel -= (input_section->output_section->vma +
+ input_section->output_offset);
+
+ if (srel & 1)
+ return bfd_reloc_outofrange;
+
+ /* MSP430 addresses commands as words. */
+ srel >>= 1;
+
+ /* Check for an overflow. */
+ if (srel < -512 || srel > 511)
+ return bfd_reloc_overflow;
+
+ x = bfd_get_16 (input_bfd, contents);
+ x = (x & 0xfc00) | (srel & 0x3ff);
+ bfd_put_16 (input_bfd, x, contents);
+ break;
+
+ case R_MSP430_16_PCREL:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation;
+ srel += rel->r_addend;
+ srel -= rel->r_offset;
+ /* Only branch instructions add 2 to the PC... */
+ srel -= (input_section->output_section->vma +
+ input_section->output_offset);
+
+ if (srel & 1)
+ return bfd_reloc_outofrange;
+
+ bfd_put_16 (input_bfd, srel & 0xffff, contents);
+ break;
+
+ case R_MSP430_16_PCREL_BYTE:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation;
+ srel += rel->r_addend;
+ srel -= rel->r_offset;
+ /* Only branch instructions add 2 to the PC... */
+ srel -= (input_section->output_section->vma +
+ input_section->output_offset);
+
+ bfd_put_16 (input_bfd, srel & 0xffff, contents);
+ break;
+
+ case R_MSP430_16_BYTE:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation;
+ srel += rel->r_addend;
+ bfd_put_16 (input_bfd, srel & 0xffff, contents);
+ break;
+
+ case R_MSP430_16:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation;
+ srel += rel->r_addend;
+
+ if (srel & 1)
+ return bfd_reloc_notsupported;
+
+ bfd_put_16 (input_bfd, srel & 0xffff, contents);
+ break;
+
+ default:
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend);
+ }
+
+ return r;
+}
+
+/* Relocate an MSP430 ELF section. */
+
+static bfd_boolean
+elf32_msp430_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd *output_bfd ATTRIBUTE_UNUSED;
+ 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;
+ Elf_Internal_Rela *relend;
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (input_bfd);
+ relend = relocs + input_section->reloc_count;
+
+ for (rel = relocs; rel < relend; rel++)
+ {
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym *sym;
+ asection *sec;
+ struct elf_link_hash_entry *h;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char *name = NULL;
+ int r_type;
+
+ /* This is a final link. */
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ howto = elf_msp430_howto_table + 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);
+
+ name = bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name);
+ name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
+ }
+ else
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ name = h->root.root.string;
+
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ sec = h->root.u.def.section;
+ relocation = (h->root.u.def.value
+ + sec->output_section->vma + sec->output_offset);
+ }
+ else if (h->root.type == bfd_link_hash_undefweak)
+ {
+ relocation = 0;
+ }
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset, TRUE)))
+ return FALSE;
+ relocation = 0;
+ }
+ }
+
+ r = msp430_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel, relocation);
+
+ if (r != bfd_reloc_ok)
+ {
+ const char *msg = (const char *) NULL;
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ r = info->callbacks->reloc_overflow
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset);
+ break;
+
+ case bfd_reloc_undefined:
+ r = info->callbacks->undefined_symbol
+ (info, name, input_bfd, input_section, rel->r_offset, TRUE);
+ break;
+
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ break;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ break;
+
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous relocation");
+ break;
+
+ default:
+ msg = _("internal error: unknown error");
+ break;
+ }
+
+ if (msg)
+ r = info->callbacks->warning
+ (info, msg, name, input_bfd, input_section, rel->r_offset);
+
+ if (!r)
+ return FALSE;
+ }
+
+ }
+
+ return TRUE;
+}
+
+/* The final processing done just before writing out a MSP430 ELF object
+ file. This gets the MSP430 architecture right based on the machine
+ number. */
+
+static void
+bfd_elf_msp430_final_write_processing (abfd, linker)
+ bfd *abfd;
+ bfd_boolean linker ATTRIBUTE_UNUSED;
+{
+ unsigned long val;
+
+ switch (bfd_get_mach (abfd))
+ {
+ default:
+ case bfd_mach_msp12:
+ val = E_MSP430_MACH_MSP430x12;
+ break;
+
+ case bfd_mach_msp110:
+ val = E_MSP430_MACH_MSP430x11x1;
+ break;
+
+ case bfd_mach_msp11:
+ val = E_MSP430_MACH_MSP430x11;
+ break;
+
+ case bfd_mach_msp13:
+ val = E_MSP430_MACH_MSP430x13;
+ break;
+
+ case bfd_mach_msp14:
+ val = E_MSP430_MACH_MSP430x14;
+ break;
+
+ case bfd_mach_msp41:
+ val = E_MSP430_MACH_MSP430x41;
+ break;
+
+ case bfd_mach_msp43:
+ val = E_MSP430_MACH_MSP430x43;
+ break;
+
+ case bfd_mach_msp44:
+ val = E_MSP430_MACH_MSP430x44;
+ break;
+
+ case bfd_mach_msp31:
+ val = E_MSP430_MACH_MSP430x31;
+ break;
+
+ case bfd_mach_msp32:
+ val = E_MSP430_MACH_MSP430x32;
+ break;
+
+ case bfd_mach_msp33:
+ val = E_MSP430_MACH_MSP430x33;
+ break;
+
+ case bfd_mach_msp15:
+ val = E_MSP430_MACH_MSP430x15;
+ break;
+
+ case bfd_mach_msp16:
+ val = E_MSP430_MACH_MSP430x16;
+ break;
+ }
+
+ elf_elfheader (abfd)->e_machine = EM_MSP430;
+ elf_elfheader (abfd)->e_flags &= ~EF_MSP430_MACH;
+ elf_elfheader (abfd)->e_flags |= val;
+}
+
+/* Set the right machine number. */
+
+static bfd_boolean
+elf32_msp430_object_p (abfd)
+ bfd *abfd;
+{
+ int e_set = bfd_mach_msp14;
+
+ if (elf_elfheader (abfd)->e_machine == EM_MSP430
+ || elf_elfheader (abfd)->e_machine == EM_MSP430_OLD)
+ {
+ int e_mach = elf_elfheader (abfd)->e_flags & EF_MSP430_MACH;
+
+ switch (e_mach)
+ {
+ default:
+ case E_MSP430_MACH_MSP430x12:
+ e_set = bfd_mach_msp12;
+ break;
+
+ case E_MSP430_MACH_MSP430x11:
+ e_set = bfd_mach_msp11;
+ break;
+
+ case E_MSP430_MACH_MSP430x11x1:
+ e_set = bfd_mach_msp110;
+ break;
+
+ case E_MSP430_MACH_MSP430x13:
+ e_set = bfd_mach_msp13;
+ break;
+
+ case E_MSP430_MACH_MSP430x14:
+ e_set = bfd_mach_msp14;
+ break;
+
+ case E_MSP430_MACH_MSP430x41:
+ e_set = bfd_mach_msp41;
+ break;
+
+ case E_MSP430_MACH_MSP430x31:
+ e_set = bfd_mach_msp31;
+ break;
+
+ case E_MSP430_MACH_MSP430x32:
+ e_set = bfd_mach_msp32;
+ break;
+
+ case E_MSP430_MACH_MSP430x33:
+ e_set = bfd_mach_msp33;
+ break;
+
+ case E_MSP430_MACH_MSP430x43:
+ e_set = bfd_mach_msp43;
+ break;
+
+ case E_MSP430_MACH_MSP430x44:
+ e_set = bfd_mach_msp44;
+ break;
+
+ case E_MSP430_MACH_MSP430x15:
+ e_set = bfd_mach_msp15;
+ break;
+
+ case E_MSP430_MACH_MSP430x16:
+ e_set = bfd_mach_msp16;
+ break;
+ }
+ }
+
+ return bfd_default_set_arch_mach (abfd, bfd_arch_msp430, e_set);
+}
+
+static void
+elf32_msp430_post_process_headers (abfd, link_info)
+ bfd *abfd;
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+{
+ Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */
+
+ i_ehdrp = elf_elfheader (abfd);
+
+#ifndef ELFOSABI_STANDALONE
+#define ELFOSABI_STANDALONE 255
+#endif
+
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_STANDALONE;
+}
+
+
+#define ELF_ARCH bfd_arch_msp430
+#define ELF_MACHINE_CODE EM_MSP430
+#define ELF_MACHINE_ALT1 EM_MSP430_OLD
+#define ELF_MAXPAGESIZE 1
+
+#define TARGET_LITTLE_SYM bfd_elf32_msp430_vec
+#define TARGET_LITTLE_NAME "elf32-msp430"
+
+#define elf_info_to_howto msp430_info_to_howto_rela
+#define elf_info_to_howto_rel NULL
+#define elf_backend_relocate_section elf32_msp430_relocate_section
+#define elf_backend_gc_mark_hook elf32_msp430_gc_mark_hook
+#define elf_backend_gc_sweep_hook elf32_msp430_gc_sweep_hook
+#define elf_backend_check_relocs elf32_msp430_check_relocs
+#define elf_backend_can_gc_sections 1
+#define elf_backend_final_write_processing bfd_elf_msp430_final_write_processing
+#define elf_backend_object_p elf32_msp430_object_p
+#define elf_backend_post_process_headers elf32_msp430_post_process_headers
+
+#include "elf32-target.h"