bfd/

	* bfd.c (bfd_get_synthetic_symtab): Define.
	* targets.c (BFD_JUMP_TABLE_DYNAMIC): Add
	NAME##_get_synthetic_symtab.
	(struct bfd_target): Add _bfd_get_synthetic_symtab.
	* libbfd-in.h (_bfd_nodynamic_get_synthetic_symtab): Define.
	* elf-bfd.h (struct elf_backend_data): Add plt_sym_val and
	relplt_name fields.
	(_bfd_elf_get_synthetic_symtab): New prototype.
	* elfcode.h (elf_get_synthetic_symtab): Define.
	* elf.c (_bfd_elf_get_synthetic_symtab): New function.
	* elfxx-target.h (bfd_elfNN_get_synthetic_symtab): Define.
	(elf_backend_plt_sym_val, elf_backend_relplt_name): Define.
	(elfNN_bed): Add elf_backend_plt_sym_val and elf_backend_relplt_name.
	* bfd-in2.h: Rebuilt.
	* libbfd.h: Rebuilt.
	* elf32-i386.c (elf_i386_plt_sym_val): New function.
	(elf_backend_plt_sym_val): Define.
	* elf64-x86-64.c (elf64_x86_64_plt_sym_val): New function.
	(elf_backend_plt_sym_val): Define.
	* elf32-s390.c (elf_s390_plt_sym_val): New function.
	(elf_backend_plt_sym_val): Define.
	* elf64-s390.c (elf_s390_plt_sym_val): New function.
	(elf_backend_plt_sym_val): Define.
	* elf32-sparc (elf32_sparc_plt_sym_val): New function.
	(elf_backend_plt_sym_val): Define.
	* elf64-sparc.c (sparc64_elf_plt_sym_val): New function.
	(elf_backend_plt_sym_val): Define.
	* elf32-ppc.c (ppc_elf_plt_sym_val): New function.
	(elf_backend_plt_sym_val): Define.
	* aout-target.h (MY_get_synthetic_symtab): Define.
	* aout-tic30.c (MY_get_synthetic_symtab): Define.
	* coff-rs6000.c (rs6000coff_vec): Add
	_bfd_nodynamic_get_synthetic_symtab.
	(pmac_xcoff_vec): Likewise.
	* coff64-rs6000.c (rs6000coff64_vec): Add
	_bfd_nodynamic_get_synthetic_symtab.
	(aix5coff64_vec): Likewise.
	* sunos.c (MY_get_synthetic_symtab): Define.
	* vms.c (vms_get_synthetic_symtab): Define.
binutils/
	* objdump.c (synthsyms, synthcount): New variables.
	(disassemble_data): Use dynsyms for stripped binaries or libraries.
	Add synthetized symbols.
	(dump_bfd): For disassemble, initialize dynsyms always and
	also synthsyms.  Free synthsyms and clear {sym,dynsym,synth}count
	before returning.

1 files changed, 76 insertions, 0 deletions

diff --git a/bfd/elf.c b/bfd/elf.c
index 2fcfa98..d05a3df 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -7513,3 +7513,79 @@ bfd_elf_bfd_from_remote_memory
   return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory)
     (templ, ehdr_vma, loadbasep, target_read_memory);
 }
+
+long
+_bfd_elf_get_synthetic_symtab (bfd *abfd, asymbol **dynsyms, asymbol **ret)
+{
+  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+  asection *relplt;
+  asymbol *s;
+  const char *relplt_name;
+  bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
+  arelent *p;
+  long count, i, n;
+  size_t size;
+  Elf_Internal_Shdr *hdr;
+  char *names;
+  asection *plt;
+
+  *ret = NULL;
+  if (!bed->plt_sym_val)
+    return 0;
+
+  relplt_name = bed->relplt_name;
+  if (relplt_name == NULL)
+    relplt_name = bed->default_use_rela_p ? ".rela.plt" : ".rel.plt";
+  relplt = bfd_get_section_by_name (abfd, relplt_name);
+  if (relplt == NULL)
+    return 0;
+
+  hdr = &elf_section_data (relplt)->this_hdr;
+  if (hdr->sh_link != elf_dynsymtab (abfd)
+      || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA))
+    return 0;
+
+  plt = bfd_get_section_by_name (abfd, ".plt");
+  if (plt == NULL)
+    return 0;
+
+  slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
+  if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
+    return -1;
+
+  count = relplt->_raw_size / hdr->sh_entsize;
+  size = count * sizeof (asymbol);
+  p = relplt->relocation;
+  for (i = 0; i < count; i++, s++, p++)
+    size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
+
+  s = *ret = bfd_malloc (size);
+  if (s == NULL)
+    return -1;
+
+  names = (char *) (s + count);
+  p = relplt->relocation;
+  n = 0;
+  for (i = 0; i < count; i++, s++, p++)
+    {
+      size_t len;
+      bfd_vma addr;
+
+      addr = bed->plt_sym_val (i, plt, p);
+      if (addr == (bfd_vma) -1)
+	continue;
+
+      *s = **p->sym_ptr_ptr;
+      s->section = plt;
+      s->value = addr - plt->vma;
+      s->name = names;
+      len = strlen ((*p->sym_ptr_ptr)->name);
+      memcpy (names, (*p->sym_ptr_ptr)->name, len);
+      names += len;
+      memcpy (names, "@plt", sizeof ("@plt"));
+      names += sizeof ("@plt");
+      ++n;
+    }
+
+  return n;
+}