/* Matsushita 10200 specific support for 32-bit ELF
- Copyright (C) 1996, 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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));
+ PARAMS ((bfd *, asection *, bfd_vma));
+static bfd_reloc_status_type mn10200_elf_final_link_relocate
+ PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *,
+ bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
+ struct bfd_link_info *, asection *, int));
+static boolean mn10200_elf_relocate_section
+PARAMS (( bfd *, struct bfd_link_info *, bfd *, asection *,
+ bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *,
+ asection **));
+static boolean mn10200_elf_relax_section
+ PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
+static bfd_byte * mn10200_elf_get_relocated_section_contents
+ PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
+ bfd_byte *, boolean, asymbol **));
/* We have to use RELA instructions since md_apply_fix3 in the assembler
does absolutely nothing. */
}
/* Perform a relocation as part of a final link. */
+
static bfd_reloc_status_type
mn10200_elf_final_link_relocate (howto, input_bfd, output_bfd,
input_section, contents, offset, value,
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel, *relend;
+ if (info->relocateable)
+ return true;
+
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
r_type = ELF32_R_TYPE (rel->r_info);
howto = elf_mn10200_howto_table + r_type;
- 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;
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
- relocation = (sec->output_section->vma
- + sec->output_offset
- + sym->st_value);
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
}
else
{
boolean *again;
{
Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *shndx_hdr;
Elf_Internal_Rela *internal_relocs;
Elf_Internal_Rela *free_relocs = NULL;
Elf_Internal_Rela *irel, *irelend;
bfd_byte *free_contents = NULL;
Elf32_External_Sym *extsyms = NULL;
Elf32_External_Sym *free_extsyms = NULL;
+ Elf_External_Sym_Shndx *shndx_buf = NULL;
/* Assume nothing changes. */
*again = false;
sec->_cooked_size = sec->_raw_size;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
/* Get a copy of the native relocations. */
internal_relocs = (_bfd_elf32_link_read_relocs
else
{
/* Go get them off disk. */
- extsyms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_size));
+ bfd_size_type amt;
+
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf32_External_Sym);
+ extsyms = (Elf32_External_Sym *) bfd_malloc (amt);
if (extsyms == NULL)
goto error_return;
free_extsyms = extsyms;
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
- != symtab_hdr->sh_size))
+ || bfd_bread ((PTR) extsyms, amt, abfd) != amt)
goto error_return;
+ symtab_hdr->contents = (bfd_byte *) extsyms;
+ }
+
+ if (shndx_hdr->sh_size != 0)
+ {
+ bfd_size_type amt;
+
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf_External_Sym_Shndx);
+ shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
+ if (shndx_buf == NULL)
+ goto error_return;
+ if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt)
+ goto error_return;
+ shndx_hdr->contents = (bfd_byte *) shndx_buf;
}
}
/* Get the value of the symbol referred to by the reloc. */
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
{
+ /* A local symbol. */
+ Elf32_External_Sym *esym;
+ Elf_External_Sym_Shndx *shndx;
Elf_Internal_Sym isym;
asection *sym_sec;
- /* A local symbol. */
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irel->r_info),
- &isym);
+ esym = extsyms + ELF32_R_SYM (irel->r_info);
+ shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0);
+ bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym);
- sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx);
+ if (isym.st_shndx == SHN_UNDEF)
+ sym_sec = bfd_und_section_ptr;
+ else if (isym.st_shndx == SHN_ABS)
+ sym_sec = bfd_abs_section_ptr;
+ else if (isym.st_shndx == SHN_COMMON)
+ sym_sec = bfd_com_section_ptr;
+ else
+ sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx);
symval = (isym.st_value
+ sym_sec->output_section->vma
+ sym_sec->output_offset);
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
- symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
/* Fix the opcode. */
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
- symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
/* Fix the opcode. */
/* 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))
+ if (mn10200_elf_symbol_address_p (abfd, sec, irel->r_offset + 1))
continue;
/* Note that we've changed the relocs, section contents, etc. */
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. */
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
- symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
/* Fix the opcode. */
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
- symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
if ((code & 0xfc) == 0x74)
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
- symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
/* Fix the opcode. */
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
- symtab_hdr->contents = (bfd_byte *) extsyms;
free_extsyms = NULL;
bfd_put_8 (abfd, 0xcc + (code & 0x03),
}
if (free_relocs != NULL)
- {
- free (free_relocs);
- free_relocs = NULL;
- }
+ free (free_relocs);
if (free_contents != NULL)
{
/* Cache the section contents for elf_link_input_bfd. */
elf_section_data (sec)->this_hdr.contents = contents;
}
- free_contents = NULL;
+ }
+
+ if (shndx_buf != NULL)
+ {
+ shndx_hdr->contents = NULL;
+ free (shndx_buf);
}
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;
+ symtab_hdr->contents = NULL;
+ free (free_extsyms);
}
- free_extsyms = NULL;
}
return true;
free (free_relocs);
if (free_contents != NULL)
free (free_contents);
+ if (shndx_buf != NULL)
+ {
+ shndx_hdr->contents = NULL;
+ free (shndx_buf);
+ }
if (free_extsyms != NULL)
- free (free_extsyms);
+ {
+ symtab_hdr->contents = NULL;
+ free (free_extsyms);
+ }
+
return false;
}
int count;
{
Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *shndx_hdr;
Elf32_External_Sym *extsyms;
- int shndx, index;
+ unsigned int sec_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;
+ Elf_External_Sym_Shndx *shndx;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_link_hash_entry **end_hashes;
+ unsigned int symcount;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
- shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+ sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
contents = elf_section_data (sec)->this_hdr.contents;
irelend = irel + sec->reloc_count;
/* Actually delete the bytes. */
- memmove (contents + addr, contents + addr + count, toaddr - addr - count);
+ memmove (contents + addr, contents + addr + count,
+ (size_t) (toaddr - addr - count));
sec->_cooked_size -= count;
/* Adjust all the relocs. */
}
/* Adjust the local symbols defined in this section. */
+ shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
esym = extsyms;
esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; esym++)
+ for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
{
Elf_Internal_Sym isym;
+ Elf_External_Sym_Shndx dummy;
- bfd_elf32_swap_symbol_in (abfd, esym, &isym);
+ bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym);
- if (isym.st_shndx == shndx
+ if (isym.st_shndx == sec_shndx
&& isym.st_value > addr
&& isym.st_value < toaddr)
{
isym.st_value -= count;
- bfd_elf32_swap_symbol_out (abfd, &isym, esym);
+ bfd_elf32_swap_symbol_out (abfd, &isym, (PTR) esym, (PTR) &dummy);
}
}
/* Now adjust the global symbols defined in this section. */
- esym = extsyms + symtab_hdr->sh_info;
- esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
- for (index = 0; esym < esymend; esym++, index++)
+ symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info);
+ sym_hashes = elf_sym_hashes (abfd);
+ end_hashes = sym_hashes + symcount;
+ for (; sym_hashes < end_hashes; sym_hashes++)
{
- Elf_Internal_Sym isym;
-
- bfd_elf32_swap_symbol_in (abfd, esym, &isym);
- sym_hash = elf_sym_hashes (abfd)[index];
- if (isym.st_shndx == shndx
- && ((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)
+ struct elf_link_hash_entry *sym_hash = *sym_hashes;
+ 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;
+ sym_hash->root.u.def.value -= count;
}
}
/* Return true if a symbol exists at the given address, else return
false. */
static boolean
-mn10200_elf_symbol_address_p (abfd, sec, extsyms, addr)
+mn10200_elf_symbol_address_p (abfd, sec, addr)
bfd *abfd;
asection *sec;
- Elf32_External_Sym *extsyms;
bfd_vma addr;
{
Elf_Internal_Shdr *symtab_hdr;
- int shndx;
+ Elf_Internal_Shdr *shndx_hdr;
+ unsigned int sec_shndx;
Elf32_External_Sym *esym, *esymend;
- struct elf_link_hash_entry **sym_hash, **sym_hash_end;
+ Elf_External_Sym_Shndx *shndx;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_link_hash_entry **end_hashes;
+ unsigned int symcount;
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+ sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
/* Examine all the symbols. */
- esym = extsyms;
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
+ esym = (Elf32_External_Sym *) symtab_hdr->contents;
esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; esym++)
+ for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
{
Elf_Internal_Sym isym;
- bfd_elf32_swap_symbol_in (abfd, esym, &isym);
+ bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym);
- if (isym.st_shndx == shndx
+ if (isym.st_shndx == sec_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++)
+ symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info);
+ sym_hashes = elf_sym_hashes (abfd);
+ end_hashes = sym_hashes + symcount;
+ for (; sym_hashes < end_hashes; sym_hashes++)
{
- 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)
+ struct elf_link_hash_entry *sym_hash = *sym_hashes;
+ 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;
}
asymbol **symbols;
{
Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *shndx_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_External_Sym_Shndx *shndx_buf = NULL;
+ Elf_External_Sym_Shndx *shndx;
Elf_Internal_Sym *internal_syms = NULL;
/* We only need to handle the case of relaxing, or of having a
symbols);
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr;
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
- input_section->_raw_size);
+ (size_t) 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;
+ bfd_size_type amt;
if (symtab_hdr->contents != NULL)
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
- else
+ else if (symtab_hdr->sh_info != 0)
{
- external_syms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf32_External_Sym)));
- if (external_syms == NULL && symtab_hdr->sh_info > 0)
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf32_External_Sym);
+ external_syms = (Elf32_External_Sym *) bfd_malloc (amt);
+ if (external_syms == NULL)
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))))
+ || bfd_bread ((PTR) external_syms, amt, input_bfd) != amt)
+ goto error_return;
+ }
+
+ if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0)
+ {
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf_External_Sym_Shndx);
+ shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
+ if (shndx_buf == NULL)
+ goto error_return;
+ if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt)
goto error_return;
}
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)
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf_Internal_Sym);
+ internal_syms = (Elf_Internal_Sym *) bfd_malloc (amt);
+ if (internal_syms == NULL && amt != 0)
goto error_return;
- sections = (asection **) bfd_malloc (symtab_hdr->sh_info
- * sizeof (asection *));
- if (sections == NULL && symtab_hdr->sh_info > 0)
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (asection *);
+ sections = (asection **) bfd_malloc (amt);
+ if (sections == NULL && amt != 0)
goto error_return;
- isymp = internal_syms;
- secpp = sections;
- esym = external_syms;
- esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; ++esym, ++isymp, ++secpp)
+ for (isymp = internal_syms, secpp = sections, shndx = shndx_buf,
+ esym = external_syms, esymend = esym + symtab_hdr->sh_info;
+ esym < esymend;
+ ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL))
{
asection *isec;
- bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
+ bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, 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;
- }
+ isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
*secpp = isec;
}
if (sections != NULL)
free (sections);
- sections = NULL;
if (internal_syms != NULL)
free (internal_syms);
- internal_syms = NULL;
+ if (shndx_buf != NULL)
+ free (shndx_buf);
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;
if (internal_relocs != NULL
&& internal_relocs != elf_section_data (input_section)->relocs)
free (internal_relocs);
+ if (shndx_buf != NULL)
+ free (shndx_buf);
if (external_syms != NULL && symtab_hdr->contents == NULL)
free (external_syms);
if (internal_syms != NULL)
#define TARGET_LITTLE_SYM bfd_elf32_mn10200_vec
#define TARGET_LITTLE_NAME "elf32-mn10200"
#define ELF_ARCH bfd_arch_mn10200
-#define ELF_MACHINE_CODE EM_CYGNUS_MN10200
+#define ELF_MACHINE_CODE EM_MN10200
+#define ELF_MACHINE_ALT1 EM_CYGNUS_MN10200
#define ELF_MAXPAGESIZE 0x1000
+#define elf_backend_rela_normal 1
#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
projects / deliverable / binutils-gdb.git / blobdiff