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Diffstat (limited to 'bfd/elf32-sh.c')
-rw-r--r--bfd/elf32-sh.c275
1 files changed, 68 insertions, 207 deletions
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c
index 8eb9a49469c..8041f5e4c02 100644
--- a/bfd/elf32-sh.c
+++ b/bfd/elf32-sh.c
@@ -1,4 +1,4 @@
-/* Renesas SH specific support for 32-bit ELF
+/* Renesas / SuperH SH specific support for 32-bit ELF
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
Contributed by Ian Lance Taylor, Cygnus Support.
@@ -90,6 +90,8 @@ static bfd_boolean sh_elf_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
static bfd_vma dtpoff_base
PARAMS ((struct bfd_link_info *));
+static bfd_vma tpoff
+ PARAMS ((struct bfd_link_info *, bfd_vma));
static asection * sh_elf_gc_mark_hook
PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
struct elf_link_hash_entry *, Elf_Internal_Sym *));
@@ -2052,7 +2054,7 @@ sh_elf_relax_section (abfd, sec, link_info, again)
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- internal_relocs = (_bfd_elf32_link_read_relocs
+ internal_relocs = (_bfd_elf_link_read_relocs
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
link_info->keep_memory));
if (internal_relocs == NULL)
@@ -2734,7 +2736,7 @@ sh_elf_relax_delete_bytes (abfd, sec, addr, count)
/* We always cache the relocs. Perhaps, if info->keep_memory is
FALSE, we should free them, if we are permitted to, when we
leave sh_coff_relax_section. */
- internal_relocs = (_bfd_elf32_link_read_relocs
+ internal_relocs = (_bfd_elf_link_read_relocs
(abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
TRUE));
if (internal_relocs == NULL)
@@ -3525,9 +3527,6 @@ struct elf_sh_dyn_relocs
/* Number of pc-relative relocs copied for the input section. */
bfd_size_type pc_count;
-
- /* If TRUE, R_SH_TLS_TPOFF32 relocation is generated. */
- bfd_boolean tls_tpoff32;
};
/* sh ELF linker hash entry. */
@@ -4039,9 +4038,9 @@ sh_elf_adjust_dynamic_symbol (info, h)
will be called from elflink.h. If elflink.h doesn't call our
finish_dynamic_symbol routine, we'll need to do something about
initializing any .plt and .got entries in sh_elf_relocate_section. */
-#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
+#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
((DYN) \
- && ((INFO)->shared \
+ && ((SHARED) \
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
&& ((H)->dynindx != -1 \
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
@@ -4095,7 +4094,8 @@ allocate_dynrelocs (h, inf)
return FALSE;
}
- if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
+ if (info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
{
asection *s = htab->splt;
@@ -4162,14 +4162,15 @@ allocate_dynrelocs (h, inf)
if (tls_type == GOT_TLS_GD)
s->_raw_size += 4;
dyn = htab->root.dynamic_sections_created;
- /* R_SH_TLS_IE_32 needs one dynamic relocation,
+ /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
R_SH_TLS_GD needs one if local symbol and two if global. */
if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
- || tls_type == GOT_TLS_IE)
+ || (tls_type == GOT_TLS_IE && dyn))
htab->srelgot->_raw_size += sizeof (Elf32_External_Rela);
else if (tls_type == GOT_TLS_GD)
htab->srelgot->_raw_size += 2 * sizeof (Elf32_External_Rela);
- else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h))
+ else if (info->shared ||
+ WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
htab->srelgot->_raw_size += sizeof (Elf32_External_Rela);
}
else
@@ -4194,7 +4195,7 @@ allocate_dynrelocs (h, inf)
eh->datalabel_got.offset = s->_raw_size;
s->_raw_size += 4;
dyn = htab->root.dynamic_sections_created;
- if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h))
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
htab->srelgot->_raw_size += sizeof (Elf32_External_Rela);
}
else
@@ -4231,10 +4232,6 @@ allocate_dynrelocs (h, inf)
}
else
{
- for (p = eh->dyn_relocs; p; p = p->next)
- if (p->tls_tpoff32)
- goto keep;
-
/* For the non-shared case, discard space for relocs against
symbols which turn out to need copy relocs or are not
dynamic. */
@@ -4752,7 +4749,7 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|| r_type == R_SH_GOT_MEDLOW16
|| r_type == R_SH_GOT_MEDHI16
|| r_type == R_SH_GOT_HI16)
- && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
+ && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
&& (! info->shared
|| (! info->symbolic && h->dynindx != -1)
|| (h->elf_link_hash_flags
@@ -5052,7 +5049,7 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
BFD_ASSERT (off != (bfd_vma) -1);
dyn = htab->root.dynamic_sections_created;
- if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|| (info->shared
&& (info->symbolic || h->dynindx == -1
|| (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
@@ -5280,17 +5277,7 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
if (! info->shared
&& (h->dynindx == -1
|| (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
- {
- struct elf_sh_dyn_relocs *p;
-
- /* If TPOFF32 relocation can be created, convert it. */
- for (p = sh_elf_hash_entry (h)->dyn_relocs; p; p = p->next)
- if (p->sec == input_section && p->tls_tpoff32)
- {
- r_type = R_SH_TLS_LE_32;
- break;
- }
- }
+ r_type = R_SH_TLS_LE_32;
}
if (r_type == R_SH_TLS_GD_32 && tls_type == GOT_TLS_IE)
@@ -5300,9 +5287,6 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
{
bfd_vma offset;
unsigned short insn;
- int indx;
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
{
@@ -5379,45 +5363,8 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
}
- if (sreloc == NULL)
- {
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (input_bfd,
- elf_elfheader (input_bfd)->e_shstrndx,
- elf_section_data (input_section)->rel_hdr.sh_name));
- if (name == NULL)
- return FALSE;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (input_bfd,
- input_section),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
- BFD_ASSERT (sreloc != NULL);
- }
-
- if (h == NULL
- || h->dynindx == -1
- || (! info->shared
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
- indx = 0;
- else
- indx = h->dynindx;
- outrel.r_offset = (input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset);
- outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
- if (indx == 0)
- outrel.r_addend = relocation - dtpoff_base (info);
- else
- outrel.r_addend = 0;
-
- loc = sreloc->contents;
- loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ contents + rel->r_offset);
continue;
}
@@ -5435,6 +5382,18 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
off = local_got_offsets[r_symndx];
}
+ /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
+ if (r_type == R_SH_TLS_IE_32
+ && ! htab->root.dynamic_sections_created)
+ {
+ off &= ~1;
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ sgot->contents + off);
+ bfd_put_32 (output_bfd, sgot->output_offset + off,
+ contents + rel->r_offset);
+ continue;
+ }
+
if ((off & 1) != 0)
off &= ~1;
else
@@ -5452,13 +5411,11 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset + off);
- if (h == NULL
- || h->dynindx == -1
- || (! info->shared
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ if (h == NULL || h->dynindx == -1)
indx = 0;
else
indx = h->dynindx;
+
dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
R_SH_TLS_TPOFF32);
if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
@@ -5640,46 +5597,7 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
case R_SH_TLS_LDO_32:
if (! info->shared)
- {
- int indx;
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
-
- if (sreloc == NULL)
- {
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (input_bfd,
- elf_elfheader (input_bfd)->e_shstrndx,
- elf_section_data (input_section)->rel_hdr.sh_name));
- if (name == NULL)
- return FALSE;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (input_bfd,
- input_section),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
- BFD_ASSERT (sreloc != NULL);
- }
-
- indx = (h && h->dynindx != -1) ? h->dynindx : 0;
- outrel.r_offset = (input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset);
- outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
- if (indx == 0)
- outrel.r_addend = relocation - dtpoff_base (info);
- else
- outrel.r_addend = 0;
-
- loc = sreloc->contents;
- loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
- continue;
- }
+ relocation = tpoff (info, relocation);
else
relocation -= dtpoff_base (info);
@@ -5692,6 +5610,13 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
Elf_Internal_Rela outrel;
bfd_byte *loc;
+ if (! info->shared)
+ {
+ relocation = tpoff (info, relocation);
+ addend = rel->r_addend;
+ goto final_link_relocate;
+ }
+
if (sreloc == NULL)
{
const char *name;
@@ -5712,7 +5637,11 @@ sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
BFD_ASSERT (sreloc != NULL);
}
- indx = (h && h->dynindx != -1) ? h->dynindx : 0;
+ if (h == NULL || h->dynindx == -1)
+ indx = 0;
+ else
+ indx = h->dynindx;
+
outrel.r_offset = (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
@@ -5806,7 +5735,7 @@ sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
Elf_Internal_Sym *isym, *isymend;
bfd_size_type amt;
- internal_relocs = (_bfd_elf32_link_read_relocs
+ internal_relocs = (_bfd_elf_link_read_relocs
(input_bfd, input_section, (PTR) NULL,
(Elf_Internal_Rela *) NULL, FALSE));
if (internal_relocs == NULL)
@@ -5882,12 +5811,27 @@ static bfd_vma
dtpoff_base (info)
struct bfd_link_info *info;
{
- /* If tls_segment is NULL, we should have signalled an error already. */
- if (elf_hash_table (info)->tls_segment == NULL)
- return 0;
+ /* If tls_segment is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_segment == NULL)
+ return 0;
return elf_hash_table (info)->tls_segment->start;
}
+/* Return the relocation value for R_SH_TLS_TPOFF32.. */
+
+static bfd_vma
+tpoff (info, address)
+ struct bfd_link_info *info;
+ bfd_vma address;
+{
+ /* If tls_segment is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_segment == NULL)
+ return 0;
+ /* SH TLS ABI is variant I and static TLS block start just after tcbhead
+ structure which has 2 pointer fields. */
+ return (address - dtpoff_base (info) + 8);
+}
+
static asection *
sh_elf_gc_mark_hook (sec, info, rel, h, sym)
asection *sec;
@@ -6349,12 +6293,12 @@ sh_elf_check_relocs (abfd, info, sec, relocs)
return FALSE;
break;
- force_got:
case R_SH_TLS_IE_32:
if (info->shared)
info->flags |= DF_STATIC_TLS;
/* FALLTHROUGH */
+ force_got:
case R_SH_TLS_GD_32:
case R_SH_GOT32:
#ifdef INCLUDE_SHMEDIA
@@ -6633,7 +6577,6 @@ sh_elf_check_relocs (abfd, info, sec, relocs)
p->sec = sec;
p->count = 0;
p->pc_count = 0;
- p->tls_tpoff32 = FALSE;
}
p->count += 1;
@@ -6651,92 +6594,10 @@ sh_elf_check_relocs (abfd, info, sec, relocs)
return FALSE;
}
- if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_LD_32)
- break;
+ break;
- /* FALLTHROUGH */
case R_SH_TLS_LDO_32:
- /* We make a R_SH_TLS_TPOFF32 relocation. Count it as a
- copy relocation. */
- if (! info->shared)
- {
- struct elf_sh_dyn_relocs *p;
- struct elf_sh_dyn_relocs **head;
-
- if (dynobj == NULL)
- htab->root.dynobj = dynobj = abfd;
-
- if (sreloc == NULL)
- {
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (abfd,
- elf_elfheader (abfd)->e_shstrndx,
- elf_section_data (sec)->rel_hdr.sh_name));
- if (name == NULL)
- return FALSE;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (abfd, sec),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
- if (sreloc == NULL)
- {
- flagword flags;
-
- sreloc = bfd_make_section (dynobj, name);
- flags = (SEC_HAS_CONTENTS | SEC_READONLY
- | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- if ((sec->flags & SEC_ALLOC) != 0)
- flags |= SEC_ALLOC | SEC_LOAD;
- if (sreloc == NULL
- || ! bfd_set_section_flags (dynobj, sreloc, flags)
- || ! bfd_set_section_alignment (dynobj, sreloc, 2))
- return FALSE;
- }
- elf_section_data (sec)->sreloc = sreloc;
- if (sec->flags & SEC_READONLY)
- info->flags |= DF_TEXTREL;
- }
-
- /* If this is a global symbol, we count the number of
- relocations we need for this symbol. */
- if (h != NULL)
- head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
- else
- {
- asection *s;
-
- /* Track dynamic relocs needed for local syms too. */
- s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
- sec, r_symndx);
- if (s == NULL)
- return FALSE;
-
- head = ((struct elf_sh_dyn_relocs **)
- &elf_section_data (s)->local_dynrel);
- }
-
- p = *head;
- if (p == NULL || p->sec != sec)
- {
- bfd_size_type amt = sizeof (*p);
- p = ((struct elf_sh_dyn_relocs *) bfd_alloc (dynobj, amt));
- if (p == NULL)
- return FALSE;
- p->next = *head;
- *head = p;
- p->sec = sec;
- p->count = 0;
- p->pc_count = 0;
- p->tls_tpoff32 = FALSE;
- }
-
- p->count += 1;
- p->tls_tpoff32 = TRUE;
- }
+ /* Nothing to do. */
break;
default: