PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void mn10200_info_to_howto
PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
-
+static boolean mn10200_elf_relax_delete_bytes
+ PARAMS ((bfd *, asection *, bfd_vma, int));
+static boolean mn10200_elf_symbol_address_p
+ PARAMS ((bfd *, asection *, Elf32_External_Sym *, bfd_vma));
/* We have to use RELA instructions since md_apply_fix3 in the assembler
does absolutely nothing. */
asection *sym_sec;
int is_local;
{
- unsigned long insn;
unsigned long r_type = howto->type;
bfd_byte *hit_data = contents + offset;
return true;
}
+/* This function handles relaxing for the mn10200.
+
+ There's quite a few relaxing opportunites available on the mn10200:
+
+ * jsr:24 -> jsr:16 2 bytes
+
+ * jmp:24 -> jmp:16 2 bytes
+ - jmp:16 -> bra:8 1 byte
+
+ - If the previous instruction is a conditional branch
+ around the jump/bra, we may be able to reverse its condition
+ and change its target to the jump's target. The jump/bra
+ can then be deleted. 1 byte
+
+ - mov abs24 -> mov abs16 2 byte savings
+
+ - Most instructions which accept imm24 can relax to imm16 2 bytes
+ - Most instructions which accept imm16 can relax to imm8 1 byte
+
+ - Most instructions which accept d24 can relax to d16 2 bytes
+ - Most instructions which accept d16 can relax to d8 1 byte
+
+
+ A '*' indicates a case this code can handle. */
+
+
+static boolean
+mn10200_elf_relax_section (abfd, sec, link_info, again)
+ bfd *abfd;
+ asection *sec;
+ struct bfd_link_info *link_info;
+ boolean *again;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *internal_relocs;
+ Elf_Internal_Rela *free_relocs = NULL;
+ Elf_Internal_Rela *irel, *irelend;
+ bfd_byte *contents = NULL;
+ bfd_byte *free_contents = NULL;
+ Elf32_External_Sym *extsyms = NULL;
+ Elf32_External_Sym *free_extsyms = NULL;
+
+ /* Assume nothing changes. */
+ *again = false;
+
+ /* We don't have to do anything for a relocateable link, if
+ this section does not have relocs, or if this is not a
+ code section. */
+ if (link_info->relocateable
+ || (sec->flags & SEC_RELOC) == 0
+ || sec->reloc_count == 0
+ || (sec->flags & SEC_CODE) == 0)
+ return true;
+
+ /* If this is the first time we have been called for this section,
+ initialize the cooked size. */
+ if (sec->_cooked_size == 0)
+ sec->_cooked_size = sec->_raw_size;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+
+ /* Get a copy of the native relocations. */
+ internal_relocs = (_bfd_elf32_link_read_relocs
+ (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
+ link_info->keep_memory));
+ if (internal_relocs == NULL)
+ goto error_return;
+ if (! link_info->keep_memory)
+ free_relocs = internal_relocs;
+
+ /* Walk through them looking for relaxing opportunities. */
+ irelend = internal_relocs + sec->reloc_count;
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ bfd_vma symval;
+
+ /* If this isn't something that can be relaxed, then ignore
+ this reloc. */
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_NONE
+ || ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_8
+ || ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_MAX)
+ continue;
+
+ /* Get the section contents if we haven't done so already. */
+ if (contents == NULL)
+ {
+ /* Get cached copy if it exists. */
+ if (elf_section_data (sec)->this_hdr.contents != NULL)
+ contents = elf_section_data (sec)->this_hdr.contents;
+ else
+ {
+ /* Go get them off disk. */
+ contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
+ if (contents == NULL)
+ goto error_return;
+ free_contents = contents;
+
+ if (! bfd_get_section_contents (abfd, sec, contents,
+ (file_ptr) 0, sec->_raw_size))
+ goto error_return;
+ }
+ }
+
+ /* Read the local symbols if we haven't done so already. */
+ if (extsyms == NULL)
+ {
+ /* Get cached copy if it exists. */
+ if (symtab_hdr->contents != NULL)
+ extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
+ else
+ {
+ /* Go get them off disk. */
+ extsyms = ((Elf32_External_Sym *)
+ bfd_malloc (symtab_hdr->sh_info
+ * sizeof (Elf32_External_Sym)));
+ if (extsyms == NULL)
+ goto error_return;
+ free_extsyms = extsyms;
+ if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
+ || (bfd_read (extsyms, sizeof (Elf32_External_Sym),
+ symtab_hdr->sh_info, abfd)
+ != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
+ goto error_return;
+ }
+ }
+
+ /* Get the value of the symbol referred to by the reloc. */
+ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Sym isym;
+
+ /* A local symbol. */
+ bfd_elf32_swap_symbol_in (abfd,
+ extsyms + ELF32_R_SYM (irel->r_info),
+ &isym);
+
+#if 0
+ if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec))
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: symbol in unexpected section",
+ bfd_get_filename (abfd), (unsigned long) 0));
+ continue;
+ }
+#endif
+
+ symval = (isym.st_value
+ + sec->output_section->vma
+ + sec->output_offset);
+ }
+ else
+ {
+ unsigned long indx;
+ struct elf_link_hash_entry *h;
+
+ /* An external symbol. */
+ indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
+ BFD_ASSERT (h != NULL);
+ if (h->root.type != bfd_link_hash_defined
+ && h->root.type != bfd_link_hash_defweak)
+ {
+ /* This appears to be a reference to an undefined
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
+ continue;
+ }
+
+ symval = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+
+ /* For simplicity of coding, we are going to modify the section
+ contents, the section relocs, and the BFD symbol table. We
+ must tell the rest of the code not to free up this
+ information. It would be possible to instead create a table
+ of changes which have to be made, as is done in coff-mips.c;
+ that would be more work, but would require less memory when
+ the linker is run. */
+
+
+ /* Try to turn a 24bit pc-relative branch/call into a 16bit pc-relative
+ branch/call. */
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL24)
+ {
+ bfd_vma value = symval;
+
+ /* Deal with pc-relative gunk. */
+ value -= (sec->output_section->vma + sec->output_offset);
+ value -= irel->r_offset;
+ value += irel->r_addend;
+
+ /* See if the value will fit in 16 bits, note the high value is
+ 0x7fff + 2 as the target will be two bytes closer if we are
+ able to relax. */
+ if ((long)value < 0x8001 && (long)value > -0x8000)
+ {
+ unsigned char code;
+
+ /* Get the opcode. */
+ code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
+
+ if (code != 0xe0 && code != 0xe1)
+ continue;
+
+ /* Note that we've changed the relocs, section contents, etc. */
+ elf_section_data (sec)->relocs = internal_relocs;
+ free_relocs = NULL;
+
+ elf_section_data (sec)->this_hdr.contents = contents;
+ free_contents = NULL;
+
+ symtab_hdr->contents = (bfd_byte *) extsyms;
+ free_extsyms = NULL;
+
+ /* Fix the opcode. */
+ if (code == 0xe0)
+ bfd_put_8 (abfd, 0xfc, contents + irel->r_offset - 2);
+ else if (code == 0xe1)
+ bfd_put_8 (abfd, 0xfd, contents + irel->r_offset - 2);
+
+ /* Fix the relocation's type. */
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
+ R_MN10200_PCREL16);
+
+ /* The opcode got shorter too, so we have to fix the
+ addend and offset too! */
+ irel->r_addend -= 1;
+ irel->r_offset -= 1;
+
+ /* Delete two bytes of data. */
+ if (!mn10200_elf_relax_delete_bytes (abfd, sec,
+ irel->r_offset + 1, 2))
+ goto error_return;
+
+ /* That will change things, so, we should relax again.
+ Note that this is not required, and it may be slow. */
+ *again = true;
+ }
+ }
+
+ /* Try to turn a 16bit pc-relative branch into a 8bit pc-relative
+ branch. */
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL16)
+ {
+ bfd_vma value = symval;
+
+ /* Deal with pc-relative gunk. */
+ value -= (sec->output_section->vma + sec->output_offset);
+ value -= irel->r_offset;
+ value += irel->r_addend;
+
+ /* See if the value will fit in 8 bits, note the high value is
+ 0x7f + 1 as the target will be one bytes closer if we are
+ able to relax. */
+ if ((long)value < 0x80 && (long)value > -0x80)
+ {
+ unsigned char code;
+
+ /* Get the opcode. */
+ code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
+
+ if (code != 0xfc)
+ continue;
+
+ /* Note that we've changed the relocs, section contents, etc. */
+ elf_section_data (sec)->relocs = internal_relocs;
+ free_relocs = NULL;
+
+ elf_section_data (sec)->this_hdr.contents = contents;
+ free_contents = NULL;
+
+ symtab_hdr->contents = (bfd_byte *) extsyms;
+ free_extsyms = NULL;
+
+ /* Fix the opcode. */
+ bfd_put_8 (abfd, 0xea, contents + irel->r_offset - 1);
+
+ /* Fix the relocation's type. */
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
+ R_MN10200_PCREL8);
+
+ /* Delete one byte of data. */
+ if (!mn10200_elf_relax_delete_bytes (abfd, sec,
+ irel->r_offset + 1, 1))
+ goto error_return;
+
+ /* That will change things, so, we should relax again.
+ Note that this is not required, and it may be slow. */
+ *again = true;
+ }
+ }
+
+ /* Try to eliminate an unconditional 8 bit pc-relative branch
+ which immediately follows a conditional 8 bit pc-relative
+ branch around the unconditional branch.
+
+ original: new:
+ bCC lab1 bCC' lab2
+ bra lab2
+ lab1: lab1:
+
+
+ This happens when the bCC can't reach lab2 at assembly time,
+ but due to other relaxations it can reach at link time. */
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL8)
+ {
+ Elf_Internal_Rela *nrel;
+ bfd_vma value = symval;
+ unsigned char code;
+
+ /* Deal with pc-relative gunk. */
+ value -= (sec->output_section->vma + sec->output_offset);
+ value -= irel->r_offset;
+ value += irel->r_addend;
+
+ /* Do nothing if this reloc is the last byte in the section. */
+ if (irel->r_offset == sec->_cooked_size)
+ continue;
+
+ /* See if the next instruction is an unconditional pc-relative
+ branch, more often than not this test will fail, so we
+ test it first to speed things up. */
+ code = bfd_get_8 (abfd, contents + irel->r_offset + 1);
+ if (code != 0xea)
+ continue;
+
+ /* Also make sure the next relocation applies to the next
+ instruction and that it's a pc-relative 8 bit branch. */
+ nrel = irel + 1;
+ if (nrel == irelend
+ || irel->r_offset + 2 != nrel->r_offset
+ || ELF32_R_TYPE (nrel->r_info) != (int) R_MN10200_PCREL8)
+ continue;
+
+ /* Make sure our destination immediately follows the
+ unconditional branch. */
+ if (symval != (sec->output_section->vma + sec->output_offset
+ + irel->r_offset + 3))
+ continue;
+
+ /* Now make sure we are a conditional branch. This may not
+ be necessary, but why take the chance.
+
+ Note these checks assume that R_MN10200_PCREL8 relocs
+ only occur on bCC and bCCx insns. If they occured
+ elsewhere, we'd need to know the start of this insn
+ for this check to be accurate. */
+ code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
+ if (code != 0xe0 && code != 0xe1 && code != 0xe2
+ && code != 0xe3 && code != 0xe4 && code != 0xe5
+ && code != 0xe6 && code != 0xe7 && code != 0xe8
+ && code != 0xe9 && code != 0xec && code != 0xed
+ && code != 0xee && code != 0xef && code != 0xfc
+ && code != 0xfd && code != 0xfe && code != 0xff)
+ continue;
+
+ /* We also have to be sure there is no symbol/label
+ at the unconditional branch. */
+ if (mn10200_elf_symbol_address_p (abfd, sec, extsyms,
+ irel->r_offset + 1))
+ continue;
+
+ /* Note that we've changed the relocs, section contents, etc. */
+ elf_section_data (sec)->relocs = internal_relocs;
+ free_relocs = NULL;
+
+ elf_section_data (sec)->this_hdr.contents = contents;
+ free_contents = NULL;
+
+ symtab_hdr->contents = (bfd_byte *) extsyms;
+ free_extsyms = NULL;
+
+ /* Reverse the condition of the first branch. */
+ switch (code)
+ {
+ case 0xfc:
+ code = 0xfd;
+ break;
+ case 0xfd:
+ code = 0xfc;
+ break;
+ case 0xfe:
+ code = 0xff;
+ break;
+ case 0xff:
+ code = 0xfe;
+ break;
+ case 0xe8:
+ code = 0xe9;
+ break;
+ case 0xe9:
+ code = 0xe8;
+ break;
+ case 0xe0:
+ code = 0xe2;
+ break;
+ case 0xe2:
+ code = 0xe0;
+ break;
+ case 0xe3:
+ code = 0xe1;
+ break;
+ case 0xe1:
+ code = 0xe3;
+ break;
+ case 0xe4:
+ code = 0xe6;
+ break;
+ case 0xe6:
+ code = 0xe4;
+ break;
+ case 0xe7:
+ code = 0xe5;
+ break;
+ case 0xe5:
+ code = 0xe7;
+ break;
+ case 0xec:
+ code = 0xed;
+ break;
+ case 0xed:
+ code = 0xec;
+ break;
+ case 0xee:
+ code = 0xef;
+ break;
+ case 0xef:
+ code = 0xee;
+ break;
+ }
+ bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
+
+ /* Set the reloc type and symbol for the first branch
+ from the second branch. */
+ irel->r_info = nrel->r_info;
+
+ /* Make the reloc for the second branch a null reloc. */
+ nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info),
+ R_MN10200_NONE);
+
+ /* Delete two bytes of data. */
+ if (!mn10200_elf_relax_delete_bytes (abfd, sec,
+ irel->r_offset + 1, 2))
+ goto error_return;
+
+printf("yahoo\n");
+ /* That will change things, so, we should relax again.
+ Note that this is not required, and it may be slow. */
+ *again = true;
+ }
+
+ }
+
+ if (free_relocs != NULL)
+ {
+ free (free_relocs);
+ free_relocs = NULL;
+ }
+
+ if (free_contents != NULL)
+ {
+ if (! link_info->keep_memory)
+ free (free_contents);
+ else
+ {
+ /* Cache the section contents for elf_link_input_bfd. */
+ elf_section_data (sec)->this_hdr.contents = contents;
+ }
+ free_contents = NULL;
+ }
+
+ if (free_extsyms != NULL)
+ {
+ if (! link_info->keep_memory)
+ free (free_extsyms);
+ else
+ {
+ /* Cache the symbols for elf_link_input_bfd. */
+ symtab_hdr->contents = extsyms;
+ }
+ free_extsyms = NULL;
+ }
+
+ return true;
+
+ error_return:
+ if (free_relocs != NULL)
+ free (free_relocs);
+ if (free_contents != NULL)
+ free (free_contents);
+ if (free_extsyms != NULL)
+ free (free_extsyms);
+ return false;
+}
+
+/* Delete some bytes from a section while relaxing. */
+
+static boolean
+mn10200_elf_relax_delete_bytes (abfd, sec, addr, count)
+ bfd *abfd;
+ asection *sec;
+ bfd_vma addr;
+ int count;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf32_External_Sym *extsyms;
+ int shndx;
+ bfd_byte *contents;
+ Elf_Internal_Rela *irel, *irelend;
+ Elf_Internal_Rela *irelalign;
+ bfd_vma toaddr;
+ Elf32_External_Sym *esym, *esymend;
+ struct elf_link_hash_entry **sym_hash, **sym_hash_end;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
+
+ shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+
+ contents = elf_section_data (sec)->this_hdr.contents;
+
+ /* The deletion must stop at the next ALIGN reloc for an aligment
+ power larger than the number of bytes we are deleting. */
+
+ irelalign = NULL;
+ toaddr = sec->_cooked_size;
+
+ irel = elf_section_data (sec)->relocs;
+ irelend = irel + sec->reloc_count;
+
+ /* Actually delete the bytes. */
+ memmove (contents + addr, contents + addr + count, toaddr - addr - count);
+ sec->_cooked_size -= count;
+
+ /* Adjust all the relocs. */
+ for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
+ {
+ /* Get the new reloc address. */
+ if ((irel->r_offset > addr
+ && irel->r_offset < toaddr))
+ irel->r_offset -= count;
+ }
+
+ /* Adjust all the symbols. */
+ esym = extsyms;
+ esymend = esym + symtab_hdr->sh_info;
+ for (; esym < esymend; esym++)
+ {
+ Elf_Internal_Sym isym;
+
+ bfd_elf32_swap_symbol_in (abfd, esym, &isym);
+
+ if (isym.st_shndx == shndx
+ && isym.st_value > addr
+ && isym.st_value < toaddr)
+ {
+ isym.st_value -= count;
+ bfd_elf32_swap_symbol_out (abfd, &isym, esym);
+ }
+ }
+
+ sym_hash = elf_sym_hashes (abfd);
+ sym_hash_end = (sym_hash
+ + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info));
+ for (; sym_hash < sym_hash_end; sym_hash++)
+ {
+ if (((*sym_hash)->root.type == bfd_link_hash_defined
+ || (*sym_hash)->root.type == bfd_link_hash_defweak)
+ && (*sym_hash)->root.u.def.section == sec
+ && (*sym_hash)->root.u.def.value > addr
+ && (*sym_hash)->root.u.def.value < toaddr)
+ {
+ (*sym_hash)->root.u.def.value -= count;
+ }
+ }
+
+ return true;
+}
+
+/* Return true if a symbol exists at the given address, else return
+ false. */
+static boolean
+mn10200_elf_symbol_address_p (abfd, sec, extsyms, addr)
+ bfd *abfd;
+ asection *sec;
+ Elf32_External_Sym *extsyms;
+ bfd_vma addr;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ int shndx;
+ Elf32_External_Sym *esym, *esymend;
+ struct elf_link_hash_entry **sym_hash, **sym_hash_end;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+
+ /* Examine all the symbols. */
+ esym = extsyms;
+ esymend = esym + symtab_hdr->sh_info;
+ for (; esym < esymend; esym++)
+ {
+ Elf_Internal_Sym isym;
+
+ bfd_elf32_swap_symbol_in (abfd, esym, &isym);
+
+ if (isym.st_shndx == shndx
+ && isym.st_value == addr)
+ return true;
+ }
+
+ sym_hash = elf_sym_hashes (abfd);
+ sym_hash_end = (sym_hash
+ + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info));
+ for (; sym_hash < sym_hash_end; sym_hash++)
+ {
+ if (((*sym_hash)->root.type == bfd_link_hash_defined
+ || (*sym_hash)->root.type == bfd_link_hash_defweak)
+ && (*sym_hash)->root.u.def.section == sec
+ && (*sym_hash)->root.u.def.value == addr)
+ return true;
+ }
+ return false;
+}
+
+/* This is a version of bfd_generic_get_relocated_section_contents
+ which uses mn10200_elf_relocate_section. */
+
+static bfd_byte *
+mn10200_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
+ data, relocateable, symbols)
+ bfd *output_bfd;
+ struct bfd_link_info *link_info;
+ struct bfd_link_order *link_order;
+ bfd_byte *data;
+ boolean relocateable;
+ asymbol **symbols;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *input_section = link_order->u.indirect.section;
+ bfd *input_bfd = input_section->owner;
+ asection **sections = NULL;
+ Elf_Internal_Rela *internal_relocs = NULL;
+ Elf32_External_Sym *external_syms = NULL;
+ Elf_Internal_Sym *internal_syms = NULL;
+
+ /* We only need to handle the case of relaxing, or of having a
+ particular set of section contents, specially. */
+ if (relocateable
+ || elf_section_data (input_section)->this_hdr.contents == NULL)
+ return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
+ link_order, data,
+ relocateable,
+ symbols);
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+
+ memcpy (data, elf_section_data (input_section)->this_hdr.contents,
+ input_section->_raw_size);
+
+ if ((input_section->flags & SEC_RELOC) != 0
+ && input_section->reloc_count > 0)
+ {
+ Elf_Internal_Sym *isymp;
+ asection **secpp;
+ Elf32_External_Sym *esym, *esymend;
+
+ if (symtab_hdr->contents != NULL)
+ external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
+ else
+ {
+ external_syms = ((Elf32_External_Sym *)
+ bfd_malloc (symtab_hdr->sh_info
+ * sizeof (Elf32_External_Sym)));
+ if (external_syms == NULL && symtab_hdr->sh_info > 0)
+ goto error_return;
+ if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
+ || (bfd_read (external_syms, sizeof (Elf32_External_Sym),
+ symtab_hdr->sh_info, input_bfd)
+ != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
+ goto error_return;
+ }
+
+ internal_relocs = (_bfd_elf32_link_read_relocs
+ (input_bfd, input_section, (PTR) NULL,
+ (Elf_Internal_Rela *) NULL, false));
+ if (internal_relocs == NULL)
+ goto error_return;
+
+ internal_syms = ((Elf_Internal_Sym *)
+ bfd_malloc (symtab_hdr->sh_info
+ * sizeof (Elf_Internal_Sym)));
+ if (internal_syms == NULL && symtab_hdr->sh_info > 0)
+ goto error_return;
+
+ sections = (asection **) bfd_malloc (symtab_hdr->sh_info
+ * sizeof (asection *));
+ if (sections == NULL && symtab_hdr->sh_info > 0)
+ goto error_return;
+
+ isymp = internal_syms;
+ secpp = sections;
+ esym = external_syms;
+ esymend = esym + symtab_hdr->sh_info;
+ for (; esym < esymend; ++esym, ++isymp, ++secpp)
+ {
+ asection *isec;
+
+ bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
+
+ if (isymp->st_shndx == SHN_UNDEF)
+ isec = bfd_und_section_ptr;
+ else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
+ isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
+ else if (isymp->st_shndx == SHN_ABS)
+ isec = bfd_abs_section_ptr;
+ else if (isymp->st_shndx == SHN_COMMON)
+ isec = bfd_com_section_ptr;
+ else
+ {
+ /* Who knows? */
+ isec = NULL;
+ }
+
+ *secpp = isec;
+ }
+
+ if (! mn10200_elf_relocate_section (output_bfd, link_info, input_bfd,
+ input_section, data, internal_relocs,
+ internal_syms, sections))
+ goto error_return;
+
+ if (sections != NULL)
+ free (sections);
+ sections = NULL;
+ if (internal_syms != NULL)
+ free (internal_syms);
+ internal_syms = NULL;
+ if (external_syms != NULL && symtab_hdr->contents == NULL)
+ free (external_syms);
+ external_syms = NULL;
+ if (internal_relocs != elf_section_data (input_section)->relocs)
+ free (internal_relocs);
+ internal_relocs = NULL;
+ }
+
+ return data;
+
+ error_return:
+ if (internal_relocs != NULL
+ && internal_relocs != elf_section_data (input_section)->relocs)
+ free (internal_relocs);
+ if (external_syms != NULL && symtab_hdr->contents == NULL)
+ free (external_syms);
+ if (internal_syms != NULL)
+ free (internal_syms);
+ if (sections != NULL)
+ free (sections);
+ return NULL;
+}
+
+
#define TARGET_LITTLE_SYM bfd_elf32_mn10200_vec
#define TARGET_LITTLE_NAME "elf32-mn10200"
#define ELF_ARCH bfd_arch_mn10200
#define elf_info_to_howto mn10200_info_to_howto
#define elf_info_to_howto_rel 0
#define elf_backend_relocate_section mn10200_elf_relocate_section
+#define bfd_elf32_bfd_relax_section mn10200_elf_relax_section
+#define bfd_elf32_bfd_get_relocated_section_contents \
+ mn10200_elf_get_relocated_section_contents
#define elf_symbol_leading_char '_'
projects / deliverable / binutils-gdb.git / commitdiff
