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* elfcode.h (NAME(bfd_elf,size_dynamic_sections)): Create DT_INIT

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and DT_FINI dynamic entries based on the existence of _init and
	_fini symbols, not on the .init and .fini sections.  This is
	compatible with some SVR4 linkers.
	(elf_bfd_final_link): Corresponding change.
This commit is contained in:
Ian Lance Taylor 1994-10-31 00:04:03 +00:00
parent ec11c09cf8
commit 197e30e560
2 changed files with 41 additions and 8 deletions
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8
bfd/ChangeLog
View File

@ -1,3 +1,11 @@
Sun Oct 30 18:56:58 1994 Ian Lance Taylor <ian@sanguine.cygnus.com>
* elfcode.h (NAME(bfd_elf,size_dynamic_sections)): Create DT_INIT
and DT_FINI dynamic entries based on the existence of _init and
_fini symbols, not on the .init and .fini sections. This is
compatible with some SVR4 linkers.
(elf_bfd_final_link): Corresponding change.
Sat Oct 29 12:18:10 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Don't move a

41
bfd/elfcode.h
View File

@ -4858,12 +4858,14 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath, 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_link_hash_lookup (elf_hash_table (info), "_init", false,
false, false) != NULL)
{
if (! elf_add_dynamic_entry (info, DT_INIT, 0))
return false;
}
if (bfd_get_section_by_name (output_bfd, ".fini") != NULL)
if (elf_link_hash_lookup (elf_hash_table (info), "_fini", false,
false, false) != NULL)
{
if (! elf_add_dynamic_entry (info, DT_FINI, 0))
return false;
@ -5568,12 +5570,35 @@ elf_bfd_final_link (abfd, info)
default:
break;
/* SVR4 linkers seem to set DT_INIT and DT_FINI based on
magic _init and _fini symbols. This is pretty ugly,
but we are compatible. */
case DT_INIT:
name = ".init";
goto get_vma;
name = "_init";
goto get_sym;
case DT_FINI:
name = ".fini";
goto get_vma;
name = "_fini";
get_sym:
{
struct elf_link_hash_entry *h;
h = elf_link_hash_lookup (elf_hash_table (info), name,
false, false, true);
BFD_ASSERT (h != NULL);
if (h->root.type == bfd_link_hash_defined)
{
dyn.d_un.d_val = h->root.u.def.value;
o = h->root.u.def.section;
if (o->output_section != NULL)
dyn.d_un.d_val += (o->output_section->vma
+ o->output_offset);
else
dyn.d_un.d_val += o->vma;
}
elf_swap_dyn_out (dynobj, &dyn, dyncon);
}
break;
case DT_HASH:
name = ".hash";
goto get_vma;
@ -5883,8 +5908,8 @@ elf_link_output_extsym (h, data)
}
else
{
BFD_ASSERT (bfd_get_flavour (input_sec->owner)
== bfd_target_elf_flavour
BFD_ASSERT ((bfd_get_flavour (input_sec->owner)
== bfd_target_elf_flavour)
&& elf_elfheader (input_sec->owner)->e_type == ET_DYN);
sym.st_shndx = SHN_UNDEF;
input_sec = bfd_und_section_ptr;