/* Xilinx MicroBlaze-specific support for 32-bit ELF
- Copyright (C) 2009-2016 Free Software Foundation, Inc.
+ Copyright (C) 2009-2017 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
r_type = ELF32_R_TYPE (dst->r_info);
if (r_type >= R_MICROBLAZE_max)
{
+ /* xgettext:c-format */
_bfd_error_handler (_("%B: unrecognised MicroBlaze reloc number: %d"),
abfd, r_type);
bfd_set_error (bfd_error_bad_value);
{
struct elf_link_hash_table elf;
- /* Short-cuts to get to dynamic linker sections. */
- asection *sgot;
- asection *sgotplt;
- asection *srelgot;
- asection *splt;
- asection *srelplt;
- asection *sdynbss;
- asection *srelbss;
-
/* Small local sym to section mapping cache. */
struct sym_cache sym_sec;
if (r_type < 0 || r_type >= (int) R_MICROBLAZE_max)
{
+ /* xgettext:c-format */
_bfd_error_handler (_("%s: unknown relocation type %d"),
bfd_get_filename (input_bfd), (int) r_type);
bfd_set_error (bfd_error_bad_value);
else
{
_bfd_error_handler
+ /* xgettext:c-format */
(_("%s: The target (%s) of an %s relocation "
"is in the wrong section (%s)"),
bfd_get_filename (input_bfd),
else
{
_bfd_error_handler
+ /* xgettext:c-format */
(_("%s: The target (%s) of an %s relocation "
"is in the wrong section (%s)"),
bfd_get_filename (input_bfd),
break; /* Do nothing. */
case (int) R_MICROBLAZE_GOTPC_64:
- relocation = htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset;
+ relocation = (htab->elf.sgotplt->output_section->vma
+ + htab->elf.sgotplt->output_offset);
relocation -= (input_section->output_section->vma
+ input_section->output_offset
+ offset + INST_WORD_SIZE);
case (int) R_MICROBLAZE_PLT_64:
{
bfd_vma immediate;
- if (htab->splt != NULL && h != NULL
+ if (htab->elf.splt != NULL && h != NULL
&& h->plt.offset != (bfd_vma) -1)
{
- relocation = (htab->splt->output_section->vma
- + htab->splt->output_offset
+ relocation = (htab->elf.splt->output_section->vma
+ + htab->elf.splt->output_offset
+ h->plt.offset);
unresolved_reloc = FALSE;
immediate = relocation - (input_section->output_section->vma
bfd_vma static_value;
bfd_boolean need_relocs = FALSE;
- if (htab->sgot == NULL)
+ if (htab->elf.sgot == NULL)
abort ();
indx = 0;
offp = &htab->tlsld_got.offset;
else if (h != NULL)
{
- if (htab->sgotplt != NULL && h->got.offset != (bfd_vma) -1)
- offp = &h->got.offset;
+ if (htab->elf.sgotplt != NULL
+ && h->got.offset != (bfd_vma) -1)
+ offp = &h->got.offset;
else
- abort ();
+ abort ();
}
else
{
{
bfd_vma got_offset;
- got_offset = (htab->sgot->output_section->vma
- + htab->sgot->output_offset
+ got_offset = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset
+ off);
/* Process module-id */
if (IS_TLS_LD(tls_type))
{
if (! bfd_link_pic (info))
- {
- bfd_put_32 (output_bfd, 1, htab->sgot->contents + off);
- }
+ bfd_put_32 (output_bfd, 1,
+ htab->elf.sgot->contents + off);
else
- {
- microblaze_elf_output_dynamic_relocation (output_bfd,
- htab->srelgot, htab->srelgot->reloc_count++,
- /* symindex= */ 0, R_MICROBLAZE_TLSDTPMOD32,
- got_offset, 0);
- }
+ microblaze_elf_output_dynamic_relocation
+ (output_bfd,
+ htab->elf.srelgot,
+ htab->elf.srelgot->reloc_count++,
+ /* symindex= */ 0, R_MICROBLAZE_TLSDTPMOD32,
+ got_offset, 0);
}
else if (IS_TLS_GD(tls_type))
{
if (! need_relocs)
- {
- bfd_put_32 (output_bfd, 1, htab->sgot->contents + off);
- }
+ bfd_put_32 (output_bfd, 1,
+ htab->elf.sgot->contents + off);
else
- {
- microblaze_elf_output_dynamic_relocation (output_bfd,
- htab->srelgot,
- htab->srelgot->reloc_count++,
- /* symindex= */ indx, R_MICROBLAZE_TLSDTPMOD32,
- got_offset, indx ? 0 : static_value);
- }
+ microblaze_elf_output_dynamic_relocation
+ (output_bfd,
+ htab->elf.srelgot,
+ htab->elf.srelgot->reloc_count++,
+ /* symindex= */ indx, R_MICROBLAZE_TLSDTPMOD32,
+ got_offset, indx ? 0 : static_value);
}
/* Process Offset */
- if (htab->srelgot == NULL)
+ if (htab->elf.srelgot == NULL)
abort ();
- got_offset = (htab->sgot->output_section->vma
- + htab->sgot->output_offset
+ got_offset = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset
+ off2);
if (IS_TLS_LD(tls_type))
{
/* For LD, offset should be 0 */
*offp |= 1;
- bfd_put_32 (output_bfd, 0, htab->sgot->contents + off2);
+ bfd_put_32 (output_bfd, 0,
+ htab->elf.sgot->contents + off2);
}
else if (IS_TLS_GD(tls_type))
{
*offp |= 1;
static_value -= dtprel_base(info);
if (need_relocs)
- {
- microblaze_elf_output_dynamic_relocation (output_bfd,
- htab->srelgot, htab->srelgot->reloc_count++,
- /* symindex= */ indx, R_MICROBLAZE_TLSDTPREL32,
- got_offset, indx ? 0 : static_value);
- }
+ microblaze_elf_output_dynamic_relocation
+ (output_bfd,
+ htab->elf.srelgot,
+ htab->elf.srelgot->reloc_count++,
+ /* symindex= */ indx, R_MICROBLAZE_TLSDTPREL32,
+ got_offset, indx ? 0 : static_value);
else
- {
- bfd_put_32 (output_bfd, static_value,
- htab->sgot->contents + off2);
- }
+ bfd_put_32 (output_bfd, static_value,
+ htab->elf.sgot->contents + off2);
}
else
{
- bfd_put_32 (output_bfd, static_value,
- htab->sgot->contents + off2);
+ bfd_put_32 (output_bfd, static_value,
+ htab->elf.sgot->contents + off2);
- /* Relocs for dyn symbols generated by
- finish_dynamic_symbols */
- if (bfd_link_pic (info) && h == NULL)
- {
- *offp |= 1;
- microblaze_elf_output_dynamic_relocation (output_bfd,
- htab->srelgot, htab->srelgot->reloc_count++,
- /* symindex= */ indx, R_MICROBLAZE_REL,
- got_offset, static_value);
- }
+ /* Relocs for dyn symbols generated by
+ finish_dynamic_symbols */
+ if (bfd_link_pic (info) && h == NULL)
+ {
+ *offp |= 1;
+ microblaze_elf_output_dynamic_relocation
+ (output_bfd,
+ htab->elf.srelgot,
+ htab->elf.srelgot->reloc_count++,
+ /* symindex= */ indx, R_MICROBLAZE_REL,
+ got_offset, static_value);
+ }
}
}
/* 4. Fixup Relocation with GOT offset value
Compute relative address of GOT entry for applying
the current relocation */
- relocation = htab->sgot->output_section->vma
- + htab->sgot->output_offset
+ relocation = htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset
+ off
- - htab->sgotplt->output_section->vma
- - htab->sgotplt->output_offset;
+ - htab->elf.sgotplt->output_section->vma
+ - htab->elf.sgotplt->output_offset;
/* Apply Current Relocation */
bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff,
bfd_vma immediate;
unsigned short lo, high;
relocation += addend;
- relocation -= htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset;
+ relocation -= (htab->elf.sgotplt->output_section->vma
+ + htab->elf.sgotplt->output_offset);
/* Write this value into correct location. */
immediate = relocation;
lo = immediate & 0x0000ffff;
high = (immediate >> 16) & 0x0000ffff;
bfd_put_16 (input_bfd, high, contents + offset + endian);
- bfd_put_16 (input_bfd, lo, contents + offset + INST_WORD_SIZE + endian);
+ bfd_put_16 (input_bfd, lo,
+ contents + offset + INST_WORD_SIZE + endian);
break;
}
case (int) R_MICROBLAZE_GOTOFF_32:
{
relocation += addend;
- relocation -= htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset;
+ relocation -= (htab->elf.sgotplt->output_section->vma
+ + htab->elf.sgotplt->output_offset);
/* Write this value into correct location. */
bfd_put_32 (input_bfd, relocation, contents + offset);
break;
#define PLT_ENTRY_WORD_2 0x98186000 /* "brad r12". */
#define PLT_ENTRY_WORD_3 0x80000000 /* "nop". */
-/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
- shortcuts to them in our hash table. */
-
-static bfd_boolean
-create_got_section (bfd *dynobj, struct bfd_link_info *info)
-{
- struct elf32_mb_link_hash_table *htab;
-
- if (! _bfd_elf_create_got_section (dynobj, info))
- return FALSE;
- htab = elf32_mb_hash_table (info);
- if (htab == NULL)
- return FALSE;
-
- htab->sgot = bfd_get_linker_section (dynobj, ".got");
- htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
- if (!htab->sgot || !htab->sgotplt)
- return FALSE;
-
- if ((htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got")) == NULL)
- htab->srelgot = bfd_make_section_anyway (dynobj, ".rela.got");
- if (htab->srelgot == NULL
- || ! bfd_set_section_flags (dynobj, htab->srelgot, SEC_ALLOC
- | SEC_LOAD
- | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY
- | SEC_LINKER_CREATED
- | SEC_READONLY)
- || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
- return FALSE;
- return TRUE;
-}
-
static bfd_boolean
update_local_sym_info (bfd *abfd,
Elf_Internal_Shdr *symtab_hdr,
dogottls:
sec->has_tls_reloc = 1;
/* Fall through. */
+ case R_MICROBLAZE_GOTOFF_64:
case R_MICROBLAZE_GOT_64:
- if (htab->sgot == NULL)
+ if (htab->elf.sgot == NULL)
{
if (htab->elf.dynobj == NULL)
htab->elf.dynobj = abfd;
- if (!create_got_section (htab->elf.dynobj, info))
+ if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
return FALSE;
}
if (h != NULL)
return TRUE;
}
-static bfd_boolean
-microblaze_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
-{
- struct elf32_mb_link_hash_table *htab;
-
- htab = elf32_mb_hash_table (info);
- if (htab == NULL)
- return FALSE;
-
- if (!htab->sgot && !create_got_section (dynobj, info))
- return FALSE;
-
- if (!_bfd_elf_create_dynamic_sections (dynobj, info))
- return FALSE;
-
- htab->splt = bfd_get_linker_section (dynobj, ".plt");
- htab->srelplt = bfd_get_linker_section (dynobj, ".rela.plt");
- htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
- if (!bfd_link_pic (info))
- htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
-
- if (!htab->splt || !htab->srelplt || !htab->sdynbss
- || (!bfd_link_pic (info) && !htab->srelbss))
- abort ();
-
- return TRUE;
-}
-
/* Copy the extra info we tack onto an elf_link_hash_entry. */
static void
struct elf32_mb_link_hash_table *htab;
struct elf32_mb_link_hash_entry * eh;
struct elf32_mb_dyn_relocs *p;
- asection *sdynbss, *s;
+ asection *s, *srel;
unsigned int power_of_two;
- bfd *dynobj;
htab = elf32_mb_hash_table (info);
if (htab == NULL)
/* We must generate a R_MICROBLAZE_COPY reloc to tell the dynamic linker
to copy the initial value out of the dynamic object and into the
runtime process image. */
- dynobj = elf_hash_table (info)->dynobj;
- BFD_ASSERT (dynobj != NULL);
+ if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
+ {
+ s = htab->elf.sdynrelro;
+ srel = htab->elf.sreldynrelro;
+ }
+ else
+ {
+ s = htab->elf.sdynbss;
+ srel = htab->elf.srelbss;
+ }
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
{
- htab->srelbss->size += sizeof (Elf32_External_Rela);
+ srel->size += sizeof (Elf32_External_Rela);
h->needs_copy = 1;
}
if (power_of_two > 3)
power_of_two = 3;
- sdynbss = htab->sdynbss;
/* Apply the required alignment. */
- sdynbss->size = BFD_ALIGN (sdynbss->size, (bfd_size_type) (1 << power_of_two));
- if (power_of_two > bfd_get_section_alignment (dynobj, sdynbss))
+ s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
+ if (power_of_two > s->alignment_power)
{
- if (! bfd_set_section_alignment (dynobj, sdynbss, power_of_two))
+ if (!bfd_set_section_alignment (s->owner, s, power_of_two))
return FALSE;
}
/* Define the symbol as being at this point in the section. */
- h->root.u.def.section = sdynbss;
- h->root.u.def.value = sdynbss->size;
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->size;
/* Increment the section size to make room for the symbol. */
- sdynbss->size += h->size;
+ s->size += h->size;
return TRUE;
}
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
{
- asection *s = htab->splt;
+ asection *s = htab->elf.splt;
/* The first entry in .plt is reserved. */
if (s->size == 0)
/* We also need to make an entry in the .got.plt section, which
will be placed in the .got section by the linker script. */
- htab->sgotplt->size += 4;
+ htab->elf.sgotplt->size += 4;
/* We also need to make an entry in the .rel.plt section. */
- htab->srelplt->size += sizeof (Elf32_External_Rela);
+ htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
}
else
{
}
else
{
- s = htab->sgot;
+ s = htab->elf.sgot;
h->got.offset = s->size;
s->size += need;
- htab->srelgot->size += need * (sizeof (Elf32_External_Rela) / 4);
+ htab->elf.srelgot->size += need * (sizeof (Elf32_External_Rela) / 4);
}
}
else
locsymcount = symtab_hdr->sh_info;
end_local_got = local_got + locsymcount;
lgot_masks = (unsigned char *) end_local_got;
- s = htab->sgot;
- srel = htab->srelgot;
+ s = htab->elf.sgot;
+ srel = htab->elf.srelgot;
for (; local_got < end_local_got; ++local_got, ++lgot_masks)
{
if (htab->tlsld_got.refcount > 0)
{
- htab->tlsld_got.offset = htab->sgot->size;
- htab->sgot->size += 8;
+ htab->tlsld_got.offset = htab->elf.sgot->size;
+ htab->elf.sgot->size += 8;
if (bfd_link_pic (info))
- htab->srelgot->size += sizeof (Elf32_External_Rela);
+ htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
}
else
htab->tlsld_got.offset = (bfd_vma) -1;
if (elf_hash_table (info)->dynamic_sections_created)
{
/* Make space for the trailing nop in .plt. */
- if (htab->splt->size > 0)
- htab->splt->size += 4;
+ if (htab->elf.splt->size > 0)
+ htab->elf.splt->size += 4;
}
/* The check_relocs and adjust_dynamic_symbol entry points have
s->reloc_count = 0;
}
}
- else if (s != htab->splt && s != htab->sgot && s != htab->sgotplt)
+ else if (s != htab->elf.splt
+ && s != htab->elf.sgot
+ && s != htab->elf.sgotplt
+ && s != htab->elf.sdynbss
+ && s != htab->elf.sdynrelro)
{
/* It's not one of our sections, so don't allocate space. */
continue;
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
return FALSE;
- if (htab->splt->size != 0)
+ if (htab->elf.splt->size != 0)
{
if (!add_dynamic_entry (DT_PLTGOT, 0)
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
it up. */
BFD_ASSERT (h->dynindx != -1);
- splt = htab->splt;
- srela = htab->srelplt;
- sgotplt = htab->sgotplt;
+ splt = htab->elf.splt;
+ srela = htab->elf.srelplt;
+ sgotplt = htab->elf.sgotplt;
BFD_ASSERT (splt != NULL && srela != NULL && sgotplt != NULL);
plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; /* first entry reserved. */
/* For non-PIC objects we need absolute address of the GOT entry. */
if (!bfd_link_pic (info))
- got_addr += htab->sgotplt->output_section->vma + sgotplt->output_offset;
+ got_addr += sgotplt->output_section->vma + sgotplt->output_offset;
/* Fill in the entry in the procedure linkage table. */
bfd_put_32 (output_bfd, PLT_ENTRY_WORD_0 + ((got_addr >> 16) & 0xffff),
/* This symbol has an entry in the global offset table. Set it
up. */
- sgot = htab->sgot;
- srela = htab->srelgot;
+ sgot = htab->elf.sgot;
+ srela = htab->elf.srelgot;
BFD_ASSERT (sgot != NULL && srela != NULL);
offset = (sgot->output_section->vma + sgot->output_offset
|| h->dynindx == -1))
{
asection *sec = h->root.u.def.section;
+ bfd_vma value;
+
+ value = h->root.u.def.value;
+ if (sec->output_section != NULL)
+ /* PR 21180: If the output section is NULL, then the symbol is no
+ longer needed, and in theory the GOT entry is redundant. But
+ it is too late to change our minds now... */
+ value += sec->output_section->vma + sec->output_offset;
+
microblaze_elf_output_dynamic_relocation (output_bfd,
srela, srela->reloc_count++,
/* symindex= */ 0,
R_MICROBLAZE_REL, offset,
- h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
+ value);
}
else
{
BFD_ASSERT (h->dynindx != -1);
- s = bfd_get_linker_section (htab->elf.dynobj, ".rela.bss");
- BFD_ASSERT (s != NULL);
-
rela.r_offset = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_COPY);
rela.r_addend = 0;
+ if (h->root.u.def.section == htab->elf.sdynrelro)
+ s = htab->elf.sreldynrelro;
+ else
+ s = htab->elf.srelbss;
loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
}
asection *splt;
Elf32_External_Dyn *dyncon, *dynconend;
- splt = bfd_get_linker_section (dynobj, ".plt");
- BFD_ASSERT (splt != NULL && sdyn != NULL);
-
dyncon = (Elf32_External_Dyn *) sdyn->contents;
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
for (; dyncon < dynconend; dyncon++)
{
Elf_Internal_Dyn dyn;
- const char *name;
+ asection *s;
bfd_boolean size;
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
switch (dyn.d_tag)
{
- case DT_PLTGOT: name = ".got.plt"; size = FALSE; break;
- case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
- case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
- case DT_RELA: name = ".rela.dyn"; size = FALSE; break;
- case DT_RELASZ: name = ".rela.dyn"; size = TRUE; break;
- default: name = NULL; size = FALSE; break;
- }
+ case DT_PLTGOT:
+ s = htab->elf.sgotplt;
+ size = FALSE;
+ break;
- if (name != NULL)
- {
- asection *s;
+ case DT_PLTRELSZ:
+ s = htab->elf.srelplt;
+ size = TRUE;
+ break;
- s = bfd_get_linker_section (dynobj, name);
- if (s == NULL)
- dyn.d_un.d_val = 0;
- else
- {
- if (! size)
- dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
- else
- dyn.d_un.d_val = s->size;
- }
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ case DT_JMPREL:
+ s = htab->elf.srelplt;
+ size = FALSE;
+ break;
+
+ default:
+ continue;
}
+
+ if (s == NULL)
+ dyn.d_un.d_val = 0;
+ else
+ {
+ if (!size)
+ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
+ else
+ dyn.d_un.d_val = s->size;
+ }
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
}
+ splt = htab->elf.splt;
+ BFD_ASSERT (splt != NULL && sdyn != NULL);
+
/* Clear the first entry in the procedure linkage table,
and put a nop in the last four bytes. */
if (splt->size > 0)
/* Set the first entry in the global offset table to the address of
the dynamic section. */
- sgot = bfd_get_linker_section (dynobj, ".got.plt");
+ sgot = htab->elf.sgotplt;
if (sgot && sgot->size > 0)
{
if (sdyn == NULL)
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
}
- if (htab->sgot && htab->sgot->size > 0)
- elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4;
+ if (htab->elf.sgot && htab->elf.sgot->size > 0)
+ elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
return TRUE;
}
#define elf_backend_want_got_plt 1
#define elf_backend_plt_readonly 1
#define elf_backend_got_header_size 12
+#define elf_backend_want_dynrelro 1
#define elf_backend_rela_normal 1
+#define elf_backend_dtrel_excludes_plt 1
#define elf_backend_adjust_dynamic_symbol microblaze_elf_adjust_dynamic_symbol
-#define elf_backend_create_dynamic_sections microblaze_elf_create_dynamic_sections
+#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
#define elf_backend_finish_dynamic_sections microblaze_elf_finish_dynamic_sections
#define elf_backend_finish_dynamic_symbol microblaze_elf_finish_dynamic_symbol
#define elf_backend_size_dynamic_sections microblaze_elf_size_dynamic_sections