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Fix DT_INIT ABI violation, it is an offset not a function pointer.

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* elfxx-ia64.c (elfNN_ia64_size_dynamic_sections): Don't create
	pltoff entries for DT_INIT and DT_FINI.
	(elfNN_ia64_final_link): Don't set DT_INIT/FINI entries.
	(elfNN_ia64_finish_dynamic_sections): Don't fill in DT_INIT/FINI
	entries.
This commit is contained in:
Jim Wilson 2000-11-18 00:41:35 +00:00
parent 6d2cf69f91
commit 2c2475db4a
2 changed files with 8 additions and 91 deletions
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8
bfd/ChangeLog
View File

@ -1,3 +1,11 @@
2000-11-17 H.J. Lu <hjl@gnu.org>
* elfxx-ia64.c (elfNN_ia64_size_dynamic_sections): Don't create
pltoff entries for DT_INIT and DT_FINI.
(elfNN_ia64_final_link): Don't set DT_INIT/FINI entries.
(elfNN_ia64_finish_dynamic_sections): Don't fill in DT_INIT/FINI
entries.
2000-11-16 Richard Henderson <rth@redhat.com>
* elfxx-ia64.c (elfNN_ia64_check_relocs): Handle IPLT relocs.

91
bfd/elfxx-ia64.c
View File

@ -2300,36 +2300,6 @@ elfNN_ia64_size_dynamic_sections (output_bfd, info)
sec->_raw_size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
}
/* DT_INIT and DT_FINI get function descriptors not raw code addresses.
Force their symbols to have pltoff entries so we can use those. */
if (ia64_info->root.dynamic_sections_created)
{
struct elf_link_hash_entry *h;
struct elfNN_ia64_dyn_sym_info *dyn_i;
if (info->init_function
&& (h = elf_link_hash_lookup (elf_hash_table (info),
info->init_function, false,
false, false))
&& (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
| ELF_LINK_HASH_DEF_REGULAR)) != 0)
{
dyn_i = get_dyn_sym_info (ia64_info, h, output_bfd, NULL, true);
dyn_i->want_pltoff = 1;
}
if (info->fini_function
&& (h = elf_link_hash_lookup (elf_hash_table (info),
info->fini_function, false,
false, false))
&& (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
| ELF_LINK_HASH_DEF_REGULAR)) != 0)
{
dyn_i = get_dyn_sym_info (ia64_info, h, output_bfd, NULL, true);
dyn_i->want_pltoff = 1;
}
}
/* Allocate the GOT entries. */
if (ia64_info->got_sec)
@ -3108,48 +3078,6 @@ elfNN_ia64_final_link (abfd, info)
_bfd_set_gp_value (abfd, gp_val);
}
/* Tricky bits. DT_INIT and DT_FINI use a pltoff entry, which is
normally initialized in finish_dynamic_sections. Except that
we need all non-plt pltoff entries to be initialized before
finish_dynamic_symbols. This because the array of relocations
used for plt entries (aka DT_JMPREL) begins after all the
non-plt pltoff relocations. If the order gets confused, we
munge either the array or the array base. */
if (ia64_info->root.dynamic_sections_created)
{
struct elf_link_hash_entry *h;
struct elfNN_ia64_dyn_sym_info *dyn_i;
bfd_vma addr;
if (info->init_function
&& (h = elf_link_hash_lookup (elf_hash_table (info),
info->init_function, false,
false, false))
&& (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
| ELF_LINK_HASH_DEF_REGULAR)) != 0)
{
dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false);
addr = (h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset
+ h->root.u.def.value);
(void) set_pltoff_entry (abfd, info, dyn_i, addr, false);
}
if (info->fini_function
&& (h = elf_link_hash_lookup (elf_hash_table (info),
info->fini_function, false,
false, false))
&& (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
| ELF_LINK_HASH_DEF_REGULAR)) != 0)
{
dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false);
addr = (h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset
+ h->root.u.def.value);
(void) set_pltoff_entry (abfd, info, dyn_i, addr, false);
}
}
/* If we're producing a final executable, we need to sort the contents
of the .IA_64.unwind section. Force this section to be relocated
into memory rather than written immediately to the output file. */
@ -3954,25 +3882,6 @@ elfNN_ia64_finish_dynamic_sections (abfd, info)
dyn.d_un.d_val -= (ia64_info->minplt_entries
* sizeof (ElfNN_External_Rela));
break;
case DT_INIT:
case DT_FINI:
{
struct elf_link_hash_entry *h;
struct elfNN_ia64_dyn_sym_info *dyn_i;
const char *which;
if (dyn.d_tag == DT_INIT)
which = info->init_function;
else
which = info->fini_function;
h = elf_link_hash_lookup (elf_hash_table (info), which,
false, false, false);
dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false);
dyn.d_un.d_ptr = set_pltoff_entry (abfd, info, dyn_i,
dyn.d_un.d_ptr, 0);
}
}
bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);