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* libelf.h (struct bfd_elf_section_data): Add field dynindx.

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* elfcode.h (NAME(bfd_elf,size_dynamic_sections)): Don't finalize
	the .dynsym, .dynstr or .hash sections until after the backend
	size_dynamic_sections routine, so that it can add dynamic symbols
	if it wants to.
	* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Don't define the
	symbol to be in the .plt section when generating a shared library
	if it is a defined symbol.
	* elf32-sparc.c (elf32_sparc_adjust_dynamic_symbol): Likewise.
	(elf32_sparc_size_dynamic_sections): When generating a shared
	library, allocate space for a dynamic symbol for each output
	section, storing the index in the dynindx field of the ELF section
	data.  Adjust the other dynindx fields to account for this.
	(elf32_sparc_adjust_dynindx): New static function.
	(elf32_sparc_relocate_section): When copying a reloc into a shared
	library, use the original addend as appropriate.  Convert an
	R_SPARC_32 reloc into an R_SPARC_RELATIVE reloc.  Use the dynamic
	symbol index of the output section, not the normal symbol index.
	(elf32_sparc_finish_dynamic_sections): Don't die if a section does
	not exist when setting the value of the dynamic tags.  Write out
	a dynamic symbol for each output section.
This commit is contained in:
Ian Lance Taylor
1994-10-27 21:25:31 +00:00
parent c51975113d
commit 14cac507a8
5 changed files with 227 additions and 98 deletions
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121
bfd/elfcode.h
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@ -4819,12 +4819,72 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath, info,
if (elf_hash_table (info)->dynamic_sections_created)
{
size_t dynsymcount;
bfd_size_type strsize;
*sinterpptr = bfd_get_section_by_name (dynobj, ".interp");
BFD_ASSERT (*sinterpptr != NULL || info->shared);
if (soname != NULL)
{
bfd_size_type indx;
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr, soname,
true, true);
if (indx == (bfd_size_type) -1
|| ! elf_add_dynamic_entry (info, DT_SONAME, indx))
return false;
}
if (rpath != NULL)
{
bfd_size_type indx;
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr, rpath,
true, true);
if (indx == (bfd_size_type) -1
|| ! elf_add_dynamic_entry (info, DT_RPATH, indx))
return false;
}
/* Find all symbols which were defined in a dynamic object and make
the backend pick a reasonable value for them. */
elf_link_hash_traverse (elf_hash_table (info),
elf_adjust_dynamic_symbol,
(PTR) info);
/* Add some entries to the .dynamic section. We fill in some of the
values later, in elf_bfd_final_link, but we must add the entries
now so that we know the final size of the .dynamic section. */
if (bfd_get_section_by_name (output_bfd, ".init") != NULL)
{
if (! elf_add_dynamic_entry (info, DT_INIT, 0))
return false;
}
if (bfd_get_section_by_name (output_bfd, ".fini") != NULL)
{
if (! elf_add_dynamic_entry (info, DT_FINI, 0))
return false;
}
strsize = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
if (! elf_add_dynamic_entry (info, DT_HASH, 0)
|| ! elf_add_dynamic_entry (info, DT_STRTAB, 0)
|| ! elf_add_dynamic_entry (info, DT_SYMTAB, 0)
|| ! elf_add_dynamic_entry (info, DT_STRSZ, strsize)
|| ! elf_add_dynamic_entry (info, DT_SYMENT,
sizeof (Elf_External_Sym)))
return false;
}
/* The backend must work out the sizes of all the other dynamic
sections. */
bed = get_elf_backend_data (output_bfd);
if (! (*bed->elf_backend_size_dynamic_sections) (output_bfd, info))
return false;
if (elf_hash_table (info)->dynamic_sections_created)
{
size_t dynsymcount;
/* Set the size of the .dynsym and .hash sections. We counted
the number of dynamic symbols in elf_link_add_object_symbols.
We will build the contents of .dynsym and .hash when we build
@ -4875,69 +4935,10 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath, info,
elf_hash_table (info)->bucketcount = bucketcount;
if (soname != NULL)
{
bfd_size_type indx;
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr, soname,
true, true);
if (indx == (bfd_size_type) -1
|| ! elf_add_dynamic_entry (info, DT_SONAME, indx))
return false;
}
if (rpath != NULL)
{
bfd_size_type indx;
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr, rpath,
true, true);
if (indx == (bfd_size_type) -1
|| ! elf_add_dynamic_entry (info, DT_RPATH, indx))
return false;
}
s = bfd_get_section_by_name (dynobj, ".dynstr");
BFD_ASSERT (s != NULL);
s->_raw_size = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
/* Find all symbols which were defined in a dynamic object and make
the backend pick a reasonable value for them. */
elf_link_hash_traverse (elf_hash_table (info),
elf_adjust_dynamic_symbol,
(PTR) info);
/* Add some entries to the .dynamic section. We fill in some of the
values later, in elf_bfd_final_link, but we must add the entries
now so that we know the final size of the .dynamic section. */
if (bfd_get_section_by_name (output_bfd, ".init") != NULL)
{
if (! elf_add_dynamic_entry (info, DT_INIT, 0))
return false;
}
if (bfd_get_section_by_name (output_bfd, ".fini") != NULL)
{
if (! elf_add_dynamic_entry (info, DT_FINI, 0))
return false;
}
strsize = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
if (! elf_add_dynamic_entry (info, DT_HASH, 0)
|| ! elf_add_dynamic_entry (info, DT_STRTAB, 0)
|| ! elf_add_dynamic_entry (info, DT_SYMTAB, 0)
|| ! elf_add_dynamic_entry (info, DT_STRSZ, strsize)
|| ! elf_add_dynamic_entry (info, DT_SYMENT,
sizeof (Elf_External_Sym)))
return false;
}
/* The backend must work out the sizes of all the other dynamic
sections. */
bed = get_elf_backend_data (output_bfd);
if (! (*bed->elf_backend_size_dynamic_sections) (output_bfd, info))
return false;
if (elf_hash_table (info)->dynamic_sections_created)
{
if (! elf_add_dynamic_entry (info, DT_NULL, 0))
return false;
}