PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void elf32_h8_info_to_howto
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
+static void elf32_h8_info_to_howto_rel
+ PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
+static int elf32_h8_mach
+ PARAMS ((flagword));
+static bfd_reloc_status_type elf32_h8_final_link_relocate
+ PARAMS ((unsigned long, bfd *, bfd *, asection *,
+ bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
+ struct bfd_link_info *, asection *, int));
+static boolean elf32_h8_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
+ bfd_byte *, Elf_Internal_Rela *,
+ Elf_Internal_Sym *, asection **));
/* This does not include any relocation information, but should be
good enough for GDB or objdump to read the file. */
{ BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X },
};
-static reloc_howto_type *elf32_h8_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void elf32_h8_info_to_howto
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
-static void elf32_h8_info_to_howto_rel
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
-static int elf32_h8_mach
- PARAMS ((flagword));
static reloc_howto_type *
elf32_h8_reloc_type_lookup (abfd, code)
elf32_h8_info_to_howto (abfd, bfd_reloc, elf_reloc)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *bfd_reloc;
- Elf32_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED;
+ Elf32_Internal_Rela *elf_reloc;
{
unsigned int r;
unsigned int i;
bfd_reloc->howto = &h8_elf_howto_table[r];
}
+
+/* Perform a relocation as part of a final link. */
+static bfd_reloc_status_type
+elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd,
+ input_section, contents, offset, value,
+ addend, info, sym_sec, is_local)
+ 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;
+
+ switch (r_type)
+ {
+
+ case R_H8_NONE:
+ return bfd_reloc_ok;
+
+ case R_H8_DIR32:
+ case R_H8_DIR32A16:
+ value += addend;
+ bfd_put_32 (input_bfd, value, hit_data);
+ return bfd_reloc_ok;
+
+ case R_H8_DIR16:
+ case R_H8_DIR16A8:
+ case R_H8_DIR16R8:
+ value += addend;
+ bfd_put_16 (input_bfd, value, hit_data);
+ return bfd_reloc_ok;
+
+ /* AKA R_RELBYTE */
+ case R_H8_DIR8:
+ value += addend;
+
+ if ((long) value > 0x7f || (long) value < -0x80)
+ return bfd_reloc_overflow;
+
+ bfd_put_8 (input_bfd, value, hit_data);
+ return bfd_reloc_ok;
+
+ case R_H8_DIR24A8:
+ case R_H8_DIR24R8:
+ value += addend;
+
+ if ((long) value > 0x7fffff || (long) value < -0x800000)
+ return bfd_reloc_overflow;
+
+ value &= 0xffffff;
+ value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000);
+ bfd_put_32 (input_bfd, value, hit_data);
+ return bfd_reloc_ok;
+
+ default:
+ return bfd_reloc_notsupported;
+ }
+}
+\f
+/* Relocate an H8 ELF section. */
+static boolean
+elf32_h8_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ 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;
+
+ 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++)
+ {
+ 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);
+
+ if (info->relocateable)
+ {
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ sec = local_sections[r_symndx];
+ rel->r_addend += sec->output_offset + sym->st_value;
+ }
+ }
+
+ continue;
+ }
+
+ /* This is a final link. */
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+ relocation = (sec->output_section->vma
+ + sec->output_offset
+ + sym->st_value);
+ }
+ 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;
+ 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 = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd,
+ input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend,
+ info, sec, h == NULL);
+
+ if (r != bfd_reloc_ok)
+ {
+ const char *name;
+ const char *msg = (const char *) 0;
+ arelent bfd_reloc;
+ reloc_howto_type *howto;
+
+ elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel);
+ howto = bfd_reloc.howto;
+
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name));
+ if (name == NULL || *name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
+ break;
+
+ case bfd_reloc_undefined:
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, name, input_bfd, input_section,
+ rel->r_offset, true)))
+ return false;
+ break;
+
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ goto common_error;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ goto common_error;
+
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous error");
+ goto common_error;
+
+ default:
+ msg = _("internal error: unknown error");
+ /* fall through */
+
+ common_error:
+ if (!((*info->callbacks->warning)
+ (info, msg, name, input_bfd, input_section,
+ rel->r_offset)))
+ return false;
+ break;
+ }
+ }
+ }
+
+ return true;
+}
+
/* Object files encode the specific H8 model they were compiled
for in the ELF flags field.
and thus requires an elf hash table. */
#define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
+/* Use an H8 specific linker, not the ELF generic linker. */
+#define elf_backend_relocate_section elf32_h8_relocate_section
+
#include "elf32-target.h"
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