/* Intel 80386/80486-specific support for 32-bit ELF
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005 Free Software Foundation, Inc.
+ 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
HOWTO(R_386_TLS_TPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_TPOFF32",
TRUE, 0xffffffff, 0xffffffff, FALSE),
+ EMPTY_HOWTO (38),
+ HOWTO(R_386_TLS_GOTDESC, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_386_TLS_GOTDESC",
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_DESC_CALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+ bfd_elf_generic_reloc, "R_386_TLS_DESC_CALL",
+ FALSE, 0, 0, FALSE),
+ HOWTO(R_386_TLS_DESC, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_386_TLS_DESC",
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
/* Another gap. */
-#define R_386_tls (R_386_TLS_TPOFF32 + 1 - R_386_tls_offset)
+#define R_386_tls (R_386_TLS_DESC + 1 - R_386_tls_offset)
#define R_386_vt_offset (R_386_GNU_VTINHERIT - R_386_tls)
/* GNU extension to record C++ vtable hierarchy. */
TRACE ("BFD_RELOC_386_TLS_TPOFF32");
return &elf_howto_table[R_386_TLS_TPOFF32 - R_386_tls_offset];
+ case BFD_RELOC_386_TLS_GOTDESC:
+ TRACE ("BFD_RELOC_386_TLS_GOTDESC");
+ return &elf_howto_table[R_386_TLS_GOTDESC - R_386_tls_offset];
+
+ case BFD_RELOC_386_TLS_DESC_CALL:
+ TRACE ("BFD_RELOC_386_TLS_DESC_CALL");
+ return &elf_howto_table[R_386_TLS_DESC_CALL - R_386_tls_offset];
+
+ case BFD_RELOC_386_TLS_DESC:
+ TRACE ("BFD_RELOC_386_TLS_DESC");
+ return &elf_howto_table[R_386_TLS_DESC - R_386_tls_offset];
+
case BFD_RELOC_VTABLE_INHERIT:
TRACE ("BFD_RELOC_VTABLE_INHERIT");
return &elf_howto_table[R_386_GNU_VTINHERIT - R_386_vt_offset];
return 0;
}
+static reloc_howto_type *
+elf_i386_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]); i++)
+ if (elf_howto_table[i].name != NULL
+ && strcasecmp (elf_howto_table[i].name, r_name) == 0)
+ return &elf_howto_table[i];
+
+ return NULL;
+}
+
static void
elf_i386_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
arelent *cache_ptr,
#define GOT_TLS_IE_POS 5
#define GOT_TLS_IE_NEG 6
#define GOT_TLS_IE_BOTH 7
+#define GOT_TLS_GDESC 8
+#define GOT_TLS_GD_BOTH_P(type) \
+ ((type) == (GOT_TLS_GD | GOT_TLS_GDESC))
+#define GOT_TLS_GD_P(type) \
+ ((type) == GOT_TLS_GD || GOT_TLS_GD_BOTH_P (type))
+#define GOT_TLS_GDESC_P(type) \
+ ((type) == GOT_TLS_GDESC || GOT_TLS_GD_BOTH_P (type))
+#define GOT_TLS_GD_ANY_P(type) \
+ (GOT_TLS_GD_P (type) || GOT_TLS_GDESC_P (type))
unsigned char tls_type;
+
+ /* Offset of the GOTPLT entry reserved for the TLS descriptor,
+ starting at the end of the jump table. */
+ bfd_vma tlsdesc_got;
};
#define elf_i386_hash_entry(ent) ((struct elf_i386_link_hash_entry *)(ent))
/* tls_type for each local got entry. */
char *local_got_tls_type;
+
+ /* GOTPLT entries for TLS descriptors. */
+ bfd_vma *local_tlsdesc_gotent;
};
#define elf_i386_tdata(abfd) \
#define elf_i386_local_got_tls_type(abfd) \
(elf_i386_tdata (abfd)->local_got_tls_type)
+#define elf_i386_local_tlsdesc_gotent(abfd) \
+ (elf_i386_tdata (abfd)->local_tlsdesc_gotent)
+
static bfd_boolean
elf_i386_mkobject (bfd *abfd)
{
- bfd_size_type amt = sizeof (struct elf_i386_obj_tdata);
- abfd->tdata.any = bfd_zalloc (abfd, amt);
if (abfd->tdata.any == NULL)
- return FALSE;
- return TRUE;
+ {
+ bfd_size_type amt = sizeof (struct elf_i386_obj_tdata);
+ abfd->tdata.any = bfd_zalloc (abfd, amt);
+ if (abfd->tdata.any == NULL)
+ return FALSE;
+ }
+ return bfd_elf_mkobject (abfd);
}
/* i386 ELF linker hash table. */
/* The (unloaded but important) .rel.plt.unloaded section on VxWorks. */
asection *srelplt2;
- /* Short-cuts to frequently used symbols for VxWorks targets. */
- struct elf_link_hash_entry *hgot, *hplt;
-
/* True if the target system is VxWorks. */
int is_vxworks;
/* Value used to fill the last word of the first plt entry. */
bfd_byte plt0_pad_byte;
+ /* The index of the next unused R_386_TLS_DESC slot in .rel.plt. */
+ bfd_vma next_tls_desc_index;
+
union {
bfd_signed_vma refcount;
bfd_vma offset;
} tls_ldm_got;
+ /* The amount of space used by the reserved portion of the sgotplt
+ section, plus whatever space is used by the jump slots. */
+ bfd_vma sgotplt_jump_table_size;
+
/* Small local sym to section mapping cache. */
struct sym_sec_cache sym_sec;
};
#define elf_i386_hash_table(p) \
((struct elf_i386_link_hash_table *) ((p)->hash))
+#define elf_i386_compute_jump_table_size(htab) \
+ ((htab)->next_tls_desc_index * 4)
+
/* Create an entry in an i386 ELF linker hash table. */
static struct bfd_hash_entry *
eh = (struct elf_i386_link_hash_entry *) entry;
eh->dyn_relocs = NULL;
eh->tls_type = GOT_UNKNOWN;
+ eh->tlsdesc_got = (bfd_vma) -1;
}
return entry;
if (ret == NULL)
return NULL;
- if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc))
+ if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
+ sizeof (struct elf_i386_link_hash_entry)))
{
free (ret);
return NULL;
ret->sdynbss = NULL;
ret->srelbss = NULL;
ret->tls_ldm_got.refcount = 0;
+ ret->next_tls_desc_index = 0;
+ ret->sgotplt_jump_table_size = 0;
ret->sym_sec.abfd = NULL;
ret->is_vxworks = 0;
ret->srelplt2 = NULL;
- ret->hgot = NULL;
- ret->hplt = NULL;
ret->plt0_pad_byte = 0;
return &ret->elf.root;
elf_i386_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
{
struct elf_i386_link_hash_table *htab;
- asection * s;
- int flags;
- const struct elf_backend_data *bed = get_elf_backend_data (dynobj);
htab = elf_i386_hash_table (info);
if (!htab->sgot && !create_got_section (dynobj, info))
|| (!info->shared && !htab->srelbss))
abort ();
- if (htab->is_vxworks && !info->shared)
- {
- s = bfd_make_section (dynobj, ".rel.plt.unloaded");
- flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_READONLY
- | SEC_LINKER_CREATED);
- if (s == NULL
- || ! bfd_set_section_flags (dynobj, s, flags)
- || ! bfd_set_section_alignment (dynobj, s, bed->s->log_file_align))
- return FALSE;
- htab->srelplt2 = s;
- }
+ if (htab->is_vxworks
+ && !elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
+ return FALSE;
return TRUE;
}
/* Copy the extra info we tack onto an elf_link_hash_entry. */
static void
-elf_i386_copy_indirect_symbol (const struct elf_backend_data *bed,
+elf_i386_copy_indirect_symbol (struct bfd_link_info *info,
struct elf_link_hash_entry *dir,
struct elf_link_hash_entry *ind)
{
struct elf_i386_dyn_relocs **pp;
struct elf_i386_dyn_relocs *p;
- if (ind->root.type == bfd_link_hash_indirect)
- abort ();
-
- /* Add reloc counts against the weak sym to the strong sym
+ /* Add reloc counts against the indirect sym to the direct sym
list. Merge any entries against the same section. */
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
{
dir->pointer_equality_needed |= ind->pointer_equality_needed;
}
else
- _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
+ _bfd_elf_link_hash_copy_indirect (info, dir, ind);
}
static int
switch (r_type)
{
case R_386_TLS_GD:
+ case R_386_TLS_GOTDESC:
+ case R_386_TLS_DESC_CALL:
case R_386_TLS_IE_32:
if (is_local)
return R_386_TLS_LE_32;
case R_386_GOT32:
case R_386_TLS_GD:
+ case R_386_TLS_GOTDESC:
+ case R_386_TLS_DESC_CALL:
/* This symbol requires a global offset table entry. */
{
int tls_type, old_tls_type;
default:
case R_386_GOT32: tls_type = GOT_NORMAL; break;
case R_386_TLS_GD: tls_type = GOT_TLS_GD; break;
+ case R_386_TLS_GOTDESC:
+ case R_386_TLS_DESC_CALL:
+ tls_type = GOT_TLS_GDESC; break;
case R_386_TLS_IE_32:
if (ELF32_R_TYPE (rel->r_info) == r_type)
tls_type = GOT_TLS_IE_NEG;
bfd_size_type size;
size = symtab_hdr->sh_info;
- size *= (sizeof (bfd_signed_vma) + sizeof(char));
+ size *= (sizeof (bfd_signed_vma)
+ + sizeof (bfd_vma) + sizeof(char));
local_got_refcounts = bfd_zalloc (abfd, size);
if (local_got_refcounts == NULL)
return FALSE;
elf_local_got_refcounts (abfd) = local_got_refcounts;
+ elf_i386_local_tlsdesc_gotent (abfd)
+ = (bfd_vma *) (local_got_refcounts + symtab_hdr->sh_info);
elf_i386_local_got_tls_type (abfd)
- = (char *) (local_got_refcounts + symtab_hdr->sh_info);
+ = (char *) (local_got_refcounts + 2 * symtab_hdr->sh_info);
}
local_got_refcounts[r_symndx] += 1;
old_tls_type = elf_i386_local_got_tls_type (abfd) [r_symndx];
/* If a TLS symbol is accessed using IE at least once,
there is no point to use dynamic model for it. */
else if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
- && (old_tls_type != GOT_TLS_GD
+ && (! GOT_TLS_GD_ANY_P (old_tls_type)
|| (tls_type & GOT_TLS_IE) == 0))
{
- if ((old_tls_type & GOT_TLS_IE) && tls_type == GOT_TLS_GD)
+ if ((old_tls_type & GOT_TLS_IE) && GOT_TLS_GD_ANY_P (tls_type))
tls_type = old_tls_type;
+ else if (GOT_TLS_GD_ANY_P (old_tls_type)
+ && GOT_TLS_GD_ANY_P (tls_type))
+ tls_type |= old_tls_type;
else
{
(*_bfd_error_handler)
&& (sec->flags & SEC_ALLOC) != 0
&& (r_type != R_386_PC32
|| (h != NULL
- && (! info->symbolic
+ && (! SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
|| !h->def_regular))))
|| (ELIMINATE_COPY_RELOCS
if (name == NULL)
return FALSE;
- if (strncmp (name, ".rel", 4) != 0
+ if (! CONST_STRNEQ (name, ".rel")
|| strcmp (bfd_get_section_name (abfd, sec),
name + 4) != 0)
{
}
else
{
+ void **vpp;
/* Track dynamic relocs needed for local syms too.
We really need local syms available to do this
easily. Oh well. */
if (s == NULL)
return FALSE;
- head = ((struct elf_i386_dyn_relocs **)
- &elf_section_data (s)->local_dynrel);
+ vpp = &elf_section_data (s)->local_dynrel;
+ head = (struct elf_i386_dyn_relocs **)vpp;
}
p = *head;
static asection *
elf_i386_gc_mark_hook (asection *sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
Elf_Internal_Rela *rel,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
if (h != NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_386_GNU_VTINHERIT:
- case R_386_GNU_VTENTRY:
- break;
-
- default:
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
-
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
-
- default:
- break;
- }
- }
- }
- else
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
-
- return NULL;
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_386_GNU_VTINHERIT:
+ case R_386_GNU_VTENTRY:
+ return NULL;
+ }
+
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
/* Update the got entry reference counts for the section being removed. */
break;
case R_386_TLS_GD:
+ case R_386_TLS_GOTDESC:
+ case R_386_TLS_DESC_CALL:
case R_386_TLS_IE_32:
case R_386_TLS_IE:
case R_386_TLS_GOTIE:
}
}
+ if (h->size == 0)
+ {
+ (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
+ h->root.root.string);
+ return TRUE;
+ }
+
/* We must allocate the symbol in our .dynbss section, which will
become part of the .bss section of the executable. There will be
an entry for this symbol in the .dynsym section. The dynamic
/* We also need to make an entry in the .rel.plt section. */
htab->srelplt->size += sizeof (Elf32_External_Rel);
+ htab->next_tls_desc_index++;
if (htab->is_vxworks && !info->shared)
{
h->needs_plt = 0;
}
+ eh = (struct elf_i386_link_hash_entry *) h;
+ eh->tlsdesc_got = (bfd_vma) -1;
+
/* If R_386_TLS_{IE_32,IE,GOTIE} symbol is now local to the binary,
make it a R_386_TLS_LE_32 requiring no TLS entry. */
if (h->got.refcount > 0
}
s = htab->sgot;
- h->got.offset = s->size;
- s->size += 4;
- /* R_386_TLS_GD needs 2 consecutive GOT slots. */
- if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE_BOTH)
- s->size += 4;
+ if (GOT_TLS_GDESC_P (tls_type))
+ {
+ eh->tlsdesc_got = htab->sgotplt->size
+ - elf_i386_compute_jump_table_size (htab);
+ htab->sgotplt->size += 8;
+ h->got.offset = (bfd_vma) -2;
+ }
+ if (! GOT_TLS_GDESC_P (tls_type)
+ || GOT_TLS_GD_P (tls_type))
+ {
+ h->got.offset = s->size;
+ s->size += 4;
+ /* R_386_TLS_GD needs 2 consecutive GOT slots. */
+ if (GOT_TLS_GD_P (tls_type) || tls_type == GOT_TLS_IE_BOTH)
+ s->size += 4;
+ }
dyn = htab->elf.dynamic_sections_created;
/* R_386_TLS_IE_32 needs one dynamic relocation,
R_386_TLS_IE resp. R_386_TLS_GOTIE needs one dynamic relocation,
global. */
if (tls_type == GOT_TLS_IE_BOTH)
htab->srelgot->size += 2 * sizeof (Elf32_External_Rel);
- else if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
+ else if ((GOT_TLS_GD_P (tls_type) && h->dynindx == -1)
|| (tls_type & GOT_TLS_IE))
htab->srelgot->size += sizeof (Elf32_External_Rel);
- else if (tls_type == GOT_TLS_GD)
+ else if (GOT_TLS_GD_P (tls_type))
htab->srelgot->size += 2 * sizeof (Elf32_External_Rel);
- else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak)
+ else if (! GOT_TLS_GDESC_P (tls_type)
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
&& (info->shared
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
htab->srelgot->size += sizeof (Elf32_External_Rel);
+ if (GOT_TLS_GDESC_P (tls_type))
+ htab->srelplt->size += sizeof (Elf32_External_Rel);
}
else
h->got.offset = (bfd_vma) -1;
- eh = (struct elf_i386_link_hash_entry *) h;
if (eh->dyn_relocs == NULL)
return TRUE;
/* Also discard relocs on undefined weak syms with non-default
visibility. */
- if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ if (eh->dyn_relocs != NULL
&& h->root.type == bfd_link_hash_undefweak)
- eh->dyn_relocs = NULL;
+ {
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
+ eh->dyn_relocs = NULL;
+
+ /* Make sure undefined weak symbols are output as a dynamic
+ symbol in PIEs. */
+ else if (h->dynindx == -1
+ && !h->forced_local)
+ {
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+ }
}
else if (ELIMINATE_COPY_RELOCS)
{
bfd_signed_vma *local_got;
bfd_signed_vma *end_local_got;
char *local_tls_type;
+ bfd_vma *local_tlsdesc_gotent;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
asection *srel;
{
struct elf_i386_dyn_relocs *p;
- for (p = *((struct elf_i386_dyn_relocs **)
- &elf_section_data (s)->local_dynrel);
+ for (p = ((struct elf_i386_dyn_relocs *)
+ elf_section_data (s)->local_dynrel);
p != NULL;
p = p->next)
{
locsymcount = symtab_hdr->sh_info;
end_local_got = local_got + locsymcount;
local_tls_type = elf_i386_local_got_tls_type (ibfd);
+ local_tlsdesc_gotent = elf_i386_local_tlsdesc_gotent (ibfd);
s = htab->sgot;
srel = htab->srelgot;
- for (; local_got < end_local_got; ++local_got, ++local_tls_type)
+ for (; local_got < end_local_got;
+ ++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
{
+ *local_tlsdesc_gotent = (bfd_vma) -1;
if (*local_got > 0)
{
- *local_got = s->size;
- s->size += 4;
- if (*local_tls_type == GOT_TLS_GD
- || *local_tls_type == GOT_TLS_IE_BOTH)
- s->size += 4;
+ if (GOT_TLS_GDESC_P (*local_tls_type))
+ {
+ *local_tlsdesc_gotent = htab->sgotplt->size
+ - elf_i386_compute_jump_table_size (htab);
+ htab->sgotplt->size += 8;
+ *local_got = (bfd_vma) -2;
+ }
+ if (! GOT_TLS_GDESC_P (*local_tls_type)
+ || GOT_TLS_GD_P (*local_tls_type))
+ {
+ *local_got = s->size;
+ s->size += 4;
+ if (GOT_TLS_GD_P (*local_tls_type)
+ || *local_tls_type == GOT_TLS_IE_BOTH)
+ s->size += 4;
+ }
if (info->shared
- || *local_tls_type == GOT_TLS_GD
+ || GOT_TLS_GD_ANY_P (*local_tls_type)
|| (*local_tls_type & GOT_TLS_IE))
{
if (*local_tls_type == GOT_TLS_IE_BOTH)
srel->size += 2 * sizeof (Elf32_External_Rel);
- else
+ else if (GOT_TLS_GD_P (*local_tls_type)
+ || ! GOT_TLS_GDESC_P (*local_tls_type))
srel->size += sizeof (Elf32_External_Rel);
+ if (GOT_TLS_GDESC_P (*local_tls_type))
+ htab->srelplt->size += sizeof (Elf32_External_Rel);
}
}
else
else
htab->tls_ldm_got.offset = -1;
- if (htab->is_vxworks)
- {
- /* Save the GOT and PLT symbols in the hash table for easy access.
- Mark them as having relocations; they might not, but we won't
- know for sure until we build the GOT in finish_dynamic_symbol. */
-
- htab->hgot = elf_link_hash_lookup (elf_hash_table (info),
- "_GLOBAL_OFFSET_TABLE_",
- FALSE, FALSE, FALSE);
- if (htab->hgot)
- htab->hgot->indx = -2;
- htab->hplt = elf_link_hash_lookup (elf_hash_table (info),
- "_PROCEDURE_LINKAGE_TABLE_",
- FALSE, FALSE, FALSE);
- if (htab->hplt)
- htab->hplt->indx = -2;
-
- if (htab->is_vxworks && htab->hplt && htab->splt->flags & SEC_CODE)
- htab->hplt->type = STT_FUNC;
- }
-
/* Allocate global sym .plt and .got entries, and space for global
sym dynamic relocs. */
elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
+ /* For every jump slot reserved in the sgotplt, reloc_count is
+ incremented. However, when we reserve space for TLS descriptors,
+ it's not incremented, so in order to compute the space reserved
+ for them, it suffices to multiply the reloc count by the jump
+ slot size. */
+ if (htab->srelplt)
+ htab->sgotplt_jump_table_size = htab->next_tls_desc_index * 4;
+
/* We now have determined the sizes of the various dynamic sections.
Allocate memory for them. */
relocs = FALSE;
we've exported dynamic symbols from them we must leave them.
It's too late to tell BFD to get rid of the symbols. */
- if (htab->hplt != NULL)
+ if (htab->elf.hplt != NULL)
strip_section = FALSE;
}
- else if (strncmp (bfd_get_section_name (dynobj, s), ".rel", 4) == 0)
+ else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rel"))
{
if (s->size != 0 && s != htab->srelplt && s != htab->srelplt2)
relocs = TRUE;
continue;
}
- if (s->size == 0 && strip_section)
+ if (s->size == 0)
{
/* If we don't need this section, strip it from the
output file. This is mostly to handle .rel.bss and
adjust_dynamic_symbol is called, and it is that
function which decides whether anything needs to go
into these sections. */
-
- s->flags |= SEC_EXCLUDE;
+ if (strip_section)
+ s->flags |= SEC_EXCLUDE;
continue;
}
+ if ((s->flags & SEC_HAS_CONTENTS) == 0)
+ continue;
+
/* Allocate memory for the section contents. We use bfd_zalloc
here in case unused entries are not reclaimed before the
section's contents are written out. This should not happen,
return TRUE;
}
+static bfd_boolean
+elf_i386_always_size_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
+{
+ asection *tls_sec = elf_hash_table (info)->tls_sec;
+
+ if (tls_sec)
+ {
+ struct elf_link_hash_entry *tlsbase;
+
+ tlsbase = elf_link_hash_lookup (elf_hash_table (info),
+ "_TLS_MODULE_BASE_",
+ FALSE, FALSE, FALSE);
+
+ if (tlsbase && tlsbase->type == STT_TLS)
+ {
+ struct bfd_link_hash_entry *bh = NULL;
+ const struct elf_backend_data *bed
+ = get_elf_backend_data (output_bfd);
+
+ if (!(_bfd_generic_link_add_one_symbol
+ (info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL,
+ tls_sec, 0, NULL, FALSE,
+ bed->collect, &bh)))
+ return FALSE;
+ tlsbase = (struct elf_link_hash_entry *)bh;
+ tlsbase->def_regular = 1;
+ tlsbase->other = STV_HIDDEN;
+ (*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE);
+ }
+ }
+
+ return TRUE;
+}
+
/* Set the correct type for an x86 ELF section. We do this by the
section name, which is a hack, but ought to work. */
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_vma *local_got_offsets;
+ bfd_vma *local_tlsdesc_gotents;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
local_got_offsets = elf_local_got_offsets (input_bfd);
+ local_tlsdesc_gotents = elf_i386_local_tlsdesc_gotent (input_bfd);
rel = relocs;
relend = relocs + input_section->reloc_count;
struct elf_link_hash_entry *h;
Elf_Internal_Sym *sym;
asection *sec;
- bfd_vma off;
+ bfd_vma off, offplt;
bfd_vma relocation;
bfd_boolean unresolved_reloc;
bfd_reloc_status_type r;
howto = elf_howto_table + indx;
r_symndx = ELF32_R_SYM (rel->r_info);
-
- if (info->relocatable)
- {
- bfd_vma val;
- bfd_byte *where;
-
- /* This is a relocatable 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)
- continue;
-
- sym = local_syms + r_symndx;
- if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
- continue;
-
- sec = local_sections[r_symndx];
- val = sec->output_offset;
- if (val == 0)
- continue;
-
- where = contents + rel->r_offset;
- switch (howto->size)
- {
- /* FIXME: overflow checks. */
- case 0:
- val += bfd_get_8 (input_bfd, where);
- bfd_put_8 (input_bfd, val, where);
- break;
- case 1:
- val += bfd_get_16 (input_bfd, where);
- bfd_put_16 (input_bfd, val, where);
- break;
- case 2:
- val += bfd_get_32 (input_bfd, where);
- bfd_put_32 (input_bfd, val, where);
- break;
- default:
- abort ();
- }
- continue;
- }
-
- /* This is a final link. */
h = NULL;
sym = NULL;
sec = NULL;
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
- if ((sec->flags & SEC_MERGE)
- && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ && ((sec->flags & SEC_MERGE) != 0
+ || (info->relocatable
+ && sec->output_offset != 0)))
{
- asection *msec;
bfd_vma addend;
bfd_byte *where = contents + rel->r_offset;
abort ();
}
- msec = sec;
- addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend);
- addend -= relocation;
- addend += msec->output_section->vma + msec->output_offset;
+ if (info->relocatable)
+ addend += sec->output_offset;
+ else
+ {
+ asection *msec = sec;
+ addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec,
+ addend);
+ addend -= relocation;
+ addend += msec->output_section->vma + msec->output_offset;
+ }
switch (howto->size)
{
unresolved_reloc, warned);
}
- if (r_symndx == 0)
+ if (sec != NULL && elf_discarded_section (sec))
{
- /* r_symndx will be zero only for relocs against symbols from
- removed linkonce sections, or sections discarded by a linker
- script. For these relocs, we just want the section contents
- zeroed. Avoid any special processing in the switch below. */
- r_type = R_386_NONE;
-
- relocation = 0;
- if (howto->pc_relative)
- relocation = (input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset);
+ /* For relocs against symbols from removed linkonce sections,
+ or sections discarded by a linker script, we just want the
+ section contents zeroed. Avoid any special processing. */
+ _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
+ rel->r_info = 0;
+ rel->r_addend = 0;
+ continue;
}
+ if (info->relocatable)
+ continue;
+
switch (r_type)
{
case R_386_GOT32:
&& h->dynindx != -1
&& (r_type == R_386_PC32
|| !info->shared
- || !info->symbolic
+ || !SYMBOLIC_BIND (info, h)
|| !h->def_regular))
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
else
/* Fall through */
case R_386_TLS_GD:
+ case R_386_TLS_GOTDESC:
+ case R_386_TLS_DESC_CALL:
case R_386_TLS_IE_32:
case R_386_TLS_GOTIE:
r_type = elf_i386_tls_transition (info, r_type, h == NULL);
}
if (tls_type == GOT_TLS_IE)
tls_type = GOT_TLS_IE_NEG;
- if (r_type == R_386_TLS_GD)
+ if (r_type == R_386_TLS_GD
+ || r_type == R_386_TLS_GOTDESC
+ || r_type == R_386_TLS_DESC_CALL)
{
if (tls_type == GOT_TLS_IE_POS)
r_type = R_386_TLS_GOTIE;
rel++;
continue;
}
+ else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GOTDESC)
+ {
+ /* GDesc -> LE transition.
+ It's originally something like:
+ leal x@tlsdesc(%ebx), %eax
+
+ leal x@ntpoff, %eax
+
+ Registers other than %eax may be set up here. */
+
+ unsigned int val, type;
+ bfd_vma roff;
+
+ /* First, make sure it's a leal adding ebx to a
+ 32-bit offset into any register, although it's
+ probably almost always going to be eax. */
+ roff = rel->r_offset;
+ BFD_ASSERT (roff >= 2);
+ type = bfd_get_8 (input_bfd, contents + roff - 2);
+ BFD_ASSERT (type == 0x8d);
+ val = bfd_get_8 (input_bfd, contents + roff - 1);
+ BFD_ASSERT ((val & 0xc7) == 0x83);
+ BFD_ASSERT (roff + 4 <= input_section->size);
+
+ /* Now modify the instruction as appropriate. */
+ /* aoliva FIXME: remove the above and xor the byte
+ below with 0x86. */
+ bfd_put_8 (output_bfd, val ^ 0x86,
+ contents + roff - 1);
+ bfd_put_32 (output_bfd, -tpoff (info, relocation),
+ contents + roff);
+ continue;
+ }
+ else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_DESC_CALL)
+ {
+ /* GDesc -> LE transition.
+ It's originally:
+ call *(%eax)
+ Turn it into:
+ nop; nop */
+
+ unsigned int val, type;
+ bfd_vma roff;
+
+ /* First, make sure it's a call *(%eax). */
+ roff = rel->r_offset;
+ BFD_ASSERT (roff + 2 <= input_section->size);
+ type = bfd_get_8 (input_bfd, contents + roff);
+ BFD_ASSERT (type == 0xff);
+ val = bfd_get_8 (input_bfd, contents + roff + 1);
+ BFD_ASSERT (val == 0x10);
+
+ /* Now modify the instruction as appropriate. Use
+ xchg %ax,%ax instead of 2 nops. */
+ bfd_put_8 (output_bfd, 0x66, contents + roff);
+ bfd_put_8 (output_bfd, 0x90, contents + roff + 1);
+ continue;
+ }
else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_IE)
{
unsigned int val, type;
abort ();
if (h != NULL)
- off = h->got.offset;
+ {
+ off = h->got.offset;
+ offplt = elf_i386_hash_entry (h)->tlsdesc_got;
+ }
else
{
if (local_got_offsets == NULL)
abort ();
off = local_got_offsets[r_symndx];
+ offplt = local_tlsdesc_gotents[r_symndx];
}
if ((off & 1) != 0)
Elf_Internal_Rela outrel;
bfd_byte *loc;
int dr_type, indx;
+ asection *sreloc;
if (htab->srelgot == NULL)
abort ();
+ indx = h && h->dynindx != -1 ? h->dynindx : 0;
+
+ if (GOT_TLS_GDESC_P (tls_type))
+ {
+ outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_DESC);
+ BFD_ASSERT (htab->sgotplt_jump_table_size + offplt + 8
+ <= htab->sgotplt->size);
+ outrel.r_offset = (htab->sgotplt->output_section->vma
+ + htab->sgotplt->output_offset
+ + offplt
+ + htab->sgotplt_jump_table_size);
+ sreloc = htab->srelplt;
+ loc = sreloc->contents;
+ loc += (htab->next_tls_desc_index++
+ * sizeof (Elf32_External_Rel));
+ BFD_ASSERT (loc + sizeof (Elf32_External_Rel)
+ <= sreloc->contents + sreloc->size);
+ bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
+ if (indx == 0)
+ {
+ BFD_ASSERT (! unresolved_reloc);
+ bfd_put_32 (output_bfd,
+ relocation - dtpoff_base (info),
+ htab->sgotplt->contents + offplt
+ + htab->sgotplt_jump_table_size + 4);
+ }
+ else
+ {
+ bfd_put_32 (output_bfd, 0,
+ htab->sgotplt->contents + offplt
+ + htab->sgotplt_jump_table_size + 4);
+ }
+ }
+
+ sreloc = htab->srelgot;
+
outrel.r_offset = (htab->sgot->output_section->vma
+ htab->sgot->output_offset + off);
- indx = h && h->dynindx != -1 ? h->dynindx : 0;
- if (r_type == R_386_TLS_GD)
+ if (GOT_TLS_GD_P (tls_type))
dr_type = R_386_TLS_DTPMOD32;
+ else if (GOT_TLS_GDESC_P (tls_type))
+ goto dr_done;
else if (tls_type == GOT_TLS_IE_POS)
dr_type = R_386_TLS_TPOFF;
else
dr_type = R_386_TLS_TPOFF32;
+
if (dr_type == R_386_TLS_TPOFF && indx == 0)
bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
htab->sgot->contents + off);
else if (dr_type == R_386_TLS_TPOFF32 && indx == 0)
bfd_put_32 (output_bfd, dtpoff_base (info) - relocation,
htab->sgot->contents + off);
- else
+ else if (dr_type != R_386_TLS_DESC)
bfd_put_32 (output_bfd, 0,
htab->sgot->contents + off);
outrel.r_info = ELF32_R_INFO (indx, dr_type);
- loc = htab->srelgot->contents;
- loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel);
+
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel);
+ BFD_ASSERT (loc + sizeof (Elf32_External_Rel)
+ <= sreloc->contents + sreloc->size);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
- if (r_type == R_386_TLS_GD)
+ if (GOT_TLS_GD_P (tls_type))
{
if (indx == 0)
{
outrel.r_info = ELF32_R_INFO (indx,
R_386_TLS_DTPOFF32);
outrel.r_offset += 4;
- htab->srelgot->reloc_count++;
+ sreloc->reloc_count++;
loc += sizeof (Elf32_External_Rel);
+ BFD_ASSERT (loc + sizeof (Elf32_External_Rel)
+ <= sreloc->contents + sreloc->size);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
}
}
htab->sgot->contents + off + 4);
outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF);
outrel.r_offset += 4;
- htab->srelgot->reloc_count++;
+ sreloc->reloc_count++;
loc += sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
}
+ dr_done:
if (h != NULL)
h->got.offset |= 1;
else
local_got_offsets[r_symndx] |= 1;
}
- if (off >= (bfd_vma) -2)
+ if (off >= (bfd_vma) -2
+ && ! GOT_TLS_GDESC_P (tls_type))
abort ();
- if (r_type == ELF32_R_TYPE (rel->r_info))
+ if (r_type == R_386_TLS_GOTDESC
+ || r_type == R_386_TLS_DESC_CALL)
+ {
+ relocation = htab->sgotplt_jump_table_size + offplt;
+ unresolved_reloc = FALSE;
+ }
+ else if (r_type == ELF32_R_TYPE (rel->r_info))
{
bfd_vma g_o_t = htab->sgotplt->output_section->vma
+ htab->sgotplt->output_offset;
relocation = htab->sgot->output_section->vma
- + htab->sgot->output_offset + off - g_o_t;
+ + htab->sgot->output_offset + off - g_o_t;
if ((r_type == R_386_TLS_IE || r_type == R_386_TLS_GOTIE)
&& tls_type == GOT_TLS_IE_BOTH)
relocation += 4;
relocation += g_o_t;
unresolved_reloc = FALSE;
}
- else
+ else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GD)
{
unsigned int val, type;
bfd_vma roff;
subl $foo@gottpoff(%reg), %eax
into:
addl $foo@gotntpoff(%reg), %eax. */
- if (r_type == R_386_TLS_GOTIE)
- {
- contents[roff + 6] = 0x03;
- if (tls_type == GOT_TLS_IE_BOTH)
- off += 4;
- }
+ if (tls_type == GOT_TLS_IE_POS)
+ contents[roff + 6] = 0x03;
bfd_put_32 (output_bfd,
htab->sgot->output_section->vma
+ htab->sgot->output_offset + off
rel++;
continue;
}
+ else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GOTDESC)
+ {
+ /* GDesc -> IE transition.
+ It's originally something like:
+ leal x@tlsdesc(%ebx), %eax
+
+ Change it to:
+ movl x@gotntpoff(%ebx), %eax # before nop; nop
+ or:
+ movl x@gottpoff(%ebx), %eax # before negl %eax
+
+ Registers other than %eax may be set up here. */
+
+ unsigned int val, type;
+ bfd_vma roff;
+
+ /* First, make sure it's a leal adding ebx to a 32-bit
+ offset into any register, although it's probably
+ almost always going to be eax. */
+ roff = rel->r_offset;
+ BFD_ASSERT (roff >= 2);
+ type = bfd_get_8 (input_bfd, contents + roff - 2);
+ BFD_ASSERT (type == 0x8d);
+ val = bfd_get_8 (input_bfd, contents + roff - 1);
+ BFD_ASSERT ((val & 0xc7) == 0x83);
+ BFD_ASSERT (roff + 4 <= input_section->size);
+
+ /* Now modify the instruction as appropriate. */
+ /* To turn a leal into a movl in the form we use it, it
+ suffices to change the first byte from 0x8d to 0x8b.
+ aoliva FIXME: should we decide to keep the leal, all
+ we have to do is remove the statement below, and
+ adjust the relaxation of R_386_TLS_DESC_CALL. */
+ bfd_put_8 (output_bfd, 0x8b, contents + roff - 2);
+
+ if (tls_type == GOT_TLS_IE_BOTH)
+ off += 4;
+
+ bfd_put_32 (output_bfd,
+ htab->sgot->output_section->vma
+ + htab->sgot->output_offset + off
+ - htab->sgotplt->output_section->vma
+ - htab->sgotplt->output_offset,
+ contents + roff);
+ continue;
+ }
+ else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_DESC_CALL)
+ {
+ /* GDesc -> IE transition.
+ It's originally:
+ call *(%eax)
+
+ Change it to:
+ nop; nop
+ or
+ negl %eax
+ depending on how we transformed the TLS_GOTDESC above.
+ */
+
+ unsigned int val, type;
+ bfd_vma roff;
+
+ /* First, make sure it's a call *(%eax). */
+ roff = rel->r_offset;
+ BFD_ASSERT (roff + 2 <= input_section->size);
+ type = bfd_get_8 (input_bfd, contents + roff);
+ BFD_ASSERT (type == 0xff);
+ val = bfd_get_8 (input_bfd, contents + roff + 1);
+ BFD_ASSERT (val == 0x10);
+
+ /* Now modify the instruction as appropriate. */
+ if (tls_type != GOT_TLS_IE_NEG)
+ {
+ /* xchg %ax,%ax */
+ bfd_put_8 (output_bfd, 0x66, contents + roff);
+ bfd_put_8 (output_bfd, 0x90, contents + roff + 1);
+ }
+ else
+ {
+ /* negl %eax */
+ bfd_put_8 (output_bfd, 0xf7, contents + roff);
+ bfd_put_8 (output_bfd, 0xd8, contents + roff + 1);
+ }
+
+ continue;
+ }
+ else
+ BFD_ASSERT (FALSE);
break;
case R_386_TLS_LDM:
&& h->def_dynamic))
{
(*_bfd_error_handler)
- (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"),
+ (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
input_bfd,
input_section,
(long) rel->r_offset,
+ howto->name,
h->root.root.string);
return FALSE;
}
rel.r_offset = (htab->splt->output_section->vma
+ htab->splt->output_offset
+ h->plt.offset + 2),
- rel.r_info = ELF32_R_INFO (htab->hgot->indx, R_386_32);
+ rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32);
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
/* Create the R_386_32 relocation referencing the beginning of
rel.r_offset = (htab->sgotplt->output_section->vma
+ htab->sgotplt->output_offset
+ got_offset);
- rel.r_info = ELF32_R_INFO (htab->hplt->indx, R_386_32);
+ rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_386_32);
bfd_elf32_swap_reloc_out (output_bfd, &rel,
loc + sizeof (Elf32_External_Rel));
}
}
if (h->got.offset != (bfd_vma) -1
- && elf_i386_hash_entry(h)->tls_type != GOT_TLS_GD
+ && ! GOT_TLS_GD_ANY_P (elf_i386_hash_entry(h)->tls_type)
&& (elf_i386_hash_entry(h)->tls_type & GOT_TLS_IE) == 0)
{
Elf_Internal_Rela rel;
On VxWorks, the _GLOBAL_OFFSET_TABLE_ symbol is not absolute: it
is relative to the ".got" section. */
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || (strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
- && !htab->is_vxworks))
+ || (!htab->is_vxworks && h == htab->elf.hgot))
sym->st_shndx = SHN_ABS;
return TRUE;
if (htab->is_vxworks)
{
Elf_Internal_Rela rel;
- struct elf_link_hash_entry *hgot;
-
- /* The VxWorks GOT is relocated by the dynamic linker.
- Therefore, we must emit relocations rather than
- simply computing the values now. */
- hgot = elf_link_hash_lookup (elf_hash_table (info),
- "_GLOBAL_OFFSET_TABLE_",
- FALSE, FALSE, FALSE);
+
/* Generate a relocation for _GLOBAL_OFFSET_TABLE_ + 4.
On IA32 we use REL relocations so the addend goes in
the PLT directly. */
rel.r_offset = (htab->splt->output_section->vma
+ htab->splt->output_offset
+ 2);
- rel.r_info = ELF32_R_INFO (hgot->indx, R_386_32);
+ rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32);
bfd_elf32_swap_reloc_out (output_bfd, &rel,
htab->srelplt2->contents);
/* Generate a relocation for _GLOBAL_OFFSET_TABLE_ + 8. */
rel.r_offset = (htab->splt->output_section->vma
+ htab->splt->output_offset
+ 8);
- rel.r_info = ELF32_R_INFO (hgot->indx, R_386_32);
+ rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32);
bfd_elf32_swap_reloc_out (output_bfd, &rel,
htab->srelplt2->contents +
sizeof (Elf32_External_Rel));
{
Elf_Internal_Rela rel;
bfd_elf32_swap_reloc_in (output_bfd, p, &rel);
- rel.r_info = ELF32_R_INFO (htab->hgot->indx, R_386_32);
+ rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32);
bfd_elf32_swap_reloc_out (output_bfd, &rel, p);
p += sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_in (output_bfd, p, &rel);
- rel.r_info = ELF32_R_INFO (htab->hplt->indx, R_386_32);
+ rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_386_32);
bfd_elf32_swap_reloc_out (output_bfd, &rel, p);
p += sizeof (Elf32_External_Rel);
}
return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
}
+/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
+
+static bfd_boolean
+elf_i386_hash_symbol (struct elf_link_hash_entry *h)
+{
+ if (h->plt.offset != (bfd_vma) -1
+ && !h->def_regular
+ && !h->pointer_equality_needed)
+ return FALSE;
+
+ return _bfd_elf_hash_symbol (h);
+}
#define TARGET_LITTLE_SYM bfd_elf32_i386_vec
#define TARGET_LITTLE_NAME "elf32-i386"
#define bfd_elf32_bfd_is_local_label_name elf_i386_is_local_label_name
#define bfd_elf32_bfd_link_hash_table_create elf_i386_link_hash_table_create
#define bfd_elf32_bfd_reloc_type_lookup elf_i386_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup elf_i386_reloc_name_lookup
#define elf_backend_adjust_dynamic_symbol elf_i386_adjust_dynamic_symbol
#define elf_backend_check_relocs elf_i386_check_relocs
#define elf_backend_reloc_type_class elf_i386_reloc_type_class
#define elf_backend_relocate_section elf_i386_relocate_section
#define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections
+#define elf_backend_always_size_sections elf_i386_always_size_sections
+#define elf_backend_omit_section_dynsym \
+ ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
#define elf_backend_plt_sym_val elf_i386_plt_sym_val
+#define elf_backend_hash_symbol elf_i386_hash_symbol
#include "elf32-target.h"
#define TARGET_LITTLE_SYM bfd_elf32_i386_freebsd_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf32-i386-freebsd"
+#undef ELF_OSABI
+#define ELF_OSABI ELFOSABI_FREEBSD
/* The kernel recognizes executables as valid only if they carry a
"FreeBSD" label in the ELF header. So we put this label on all
i_ehdrp = elf_elfheader (abfd);
/* Put an ABI label supported by FreeBSD >= 4.1. */
- i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
+ i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
#ifdef OLD_FREEBSD_ABI_LABEL
/* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */
memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8);
#define TARGET_LITTLE_SYM bfd_elf32_i386_vxworks_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf32-i386-vxworks"
-
+#undef ELF_OSABI
/* Like elf_i386_link_hash_table_create but with tweaks for VxWorks. */
}
-/* Tweak magic VxWorks symbols as they are written to the output file. */
-static bfd_boolean
-elf_i386_vxworks_link_output_symbol_hook (struct bfd_link_info *info
- ATTRIBUTE_UNUSED,
- const char *name,
- Elf_Internal_Sym *sym,
- asection *input_sec ATTRIBUTE_UNUSED,
- struct elf_link_hash_entry *h
- ATTRIBUTE_UNUSED)
-{
- /* Ignore the first dummy symbol. */
- if (!name)
- return TRUE;
-
- return elf_vxworks_link_output_symbol_hook (name, sym);
-}
-
#undef elf_backend_post_process_headers
#undef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create \
elf_vxworks_add_symbol_hook
#undef elf_backend_link_output_symbol_hook
#define elf_backend_link_output_symbol_hook \
- elf_i386_vxworks_link_output_symbol_hook
+ elf_vxworks_link_output_symbol_hook
#undef elf_backend_emit_relocs
#define elf_backend_emit_relocs elf_vxworks_emit_relocs
#undef elf_backend_final_write_processing
projects / thirdparty / binutils-gdb.git / blobdiff