/* Motorola 68k series support for 32-bit ELF
- Copyright (C) 1993-2014 Free Software Foundation, Inc.
+ Copyright (C) 1993-2017 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
static reloc_howto_type howto_table[] =
{
- HOWTO(R_68K_NONE, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_NONE", FALSE, 0, 0x00000000,FALSE),
+ HOWTO(R_68K_NONE, 0, 3, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_NONE", FALSE, 0, 0x00000000,FALSE),
HOWTO(R_68K_32, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_32", FALSE, 0, 0xffffffff,FALSE),
HOWTO(R_68K_16, 0, 1,16, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_16", FALSE, 0, 0x0000ffff,FALSE),
HOWTO(R_68K_8, 0, 0, 8, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_8", FALSE, 0, 0x000000ff,FALSE),
if (indx >= (unsigned int) R_68K_max)
{
- (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
- abfd, (int) indx);
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%B: invalid relocation type %d"),
+ abfd, (int) indx);
indx = R_68K_NONE;
}
cache_ptr->howto = &howto_table[indx];
0, 0, 0, 0 /* + .plt - . */
};
-static const struct elf_m68k_plt_info elf_m68k_plt_info = {
+static const struct elf_m68k_plt_info elf_m68k_plt_info =
+{
PLT_ENTRY_SIZE,
elf_m68k_plt0_entry, { 4, 12 },
elf_m68k_plt_entry, { 4, 16 }, 8
0, 0, 0, 0 /* + .plt - . */
};
-static const struct elf_m68k_plt_info elf_isab_plt_info = {
+static const struct elf_m68k_plt_info elf_isab_plt_info =
+{
ISAB_PLT_ENTRY_SIZE,
elf_isab_plt0_entry, { 2, 12 },
elf_isab_plt_entry, { 2, 20 }, 12
0, 0, 0, 0 /* replaced with .plt - . */
};
-static const struct elf_m68k_plt_info elf_isac_plt_info = {
+static const struct elf_m68k_plt_info elf_isac_plt_info =
+{
ISAC_PLT_ENTRY_SIZE,
elf_isac_plt0_entry, { 2, 12},
elf_isac_plt_entry, { 2, 20 }, 12
0, 0
};
-static const struct elf_m68k_plt_info elf_cpu32_plt_info = {
+static const struct elf_m68k_plt_info elf_cpu32_plt_info =
+{
CPU32_PLT_ENTRY_SIZE,
elf_cpu32_plt0_entry, { 4, 12 },
elf_cpu32_plt_entry, { 4, 18 }, 10
/* Destroy an m68k ELF linker hash table. */
static void
-elf_m68k_link_hash_table_free (struct bfd_link_hash_table *_htab)
+elf_m68k_link_hash_table_free (bfd *obfd)
{
struct elf_m68k_link_hash_table *htab;
- htab = (struct elf_m68k_link_hash_table *) _htab;
+ htab = (struct elf_m68k_link_hash_table *) obfd->link.hash;
if (htab->multi_got_.bfd2got != NULL)
{
htab_delete (htab->multi_got_.bfd2got);
htab->multi_got_.bfd2got = NULL;
}
- _bfd_elf_link_hash_table_free (_htab);
+ _bfd_elf_link_hash_table_free (obfd);
}
/* Create an m68k ELF linker hash table. */
free (ret);
return NULL;
}
+ ret->root.root.hash_table_free = elf_m68k_link_hash_table_free;
ret->multi_got_.global_symndx = 1;
/* Merge backend specific data from an object file to the output
object file when linking. */
static bfd_boolean
-elf32_m68k_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+elf32_m68k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
{
+ bfd *obfd = info->output_bfd;
flagword out_flags;
flagword in_flags;
flagword out_isa;
/* This BFD has too many relocation. */
{
if (got->n_slots[R_8] > ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info))
- (*_bfd_error_handler) (_("%B: GOT overflow: "
- "Number of relocations with 8-bit "
- "offset > %d"),
- abfd,
- ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info));
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%B: GOT overflow: "
+ "Number of relocations with 8-bit "
+ "offset > %d"),
+ abfd,
+ ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info));
else
- (*_bfd_error_handler) (_("%B: GOT overflow: "
- "Number of relocations with 8- or 16-bit "
- "offset > %d"),
- abfd,
- ELF_M68K_R_8_16_MAX_N_SLOTS_IN_GOT (info));
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%B: GOT overflow: "
+ "Number of relocations with 8- or 16-bit "
+ "offset > %d"),
+ abfd,
+ ELF_M68K_R_8_16_MAX_N_SLOTS_IN_GOT (info));
return NULL;
}
arg->n_slots += arg->current_got->n_slots[R_32];
- if (!arg->info->shared)
+ if (!bfd_link_pic (arg->info))
/* If we are generating a shared object, we need to
output a R_68K_RELATIVE reloc so that the dynamic
linker can adjust this GOT entry. Overwise we
{
asection *s;
- s = bfd_get_linker_section (elf_hash_table (info)->dynobj, ".got");
+ s = elf_hash_table (info)->sgot;
if (s != NULL)
s->size = arg_.offset;
else
BFD_ASSERT (arg_.slots_relas_diff <= arg_.n_slots);
arg_.n_slots -= arg_.slots_relas_diff;
- s = bfd_get_linker_section (elf_hash_table (info)->dynobj, ".rela.got");
+ s = elf_hash_table (info)->srelgot;
if (s != NULL)
s->size = arg_.n_slots * sizeof (Elf32_External_Rela);
else
struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
- asection *sgot;
- asection *srelgot;
asection *sreloc;
struct elf_m68k_got *got;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sgot = NULL;
- srelgot = NULL;
sreloc = NULL;
got = NULL;
case R_68K_TLS_DTPREL32:
if (ELF32_R_TYPE (rel->r_info) == R_68K_TLS_TPREL32
- && info->shared)
+ && bfd_link_pic (info))
/* Do the special chorus for libraries with static TLS. */
info->flags |= DF_STATIC_TLS;
return FALSE;
}
- if (sgot == NULL)
- {
- sgot = bfd_get_linker_section (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
-
- if (srelgot == NULL
- && (h != NULL || info->shared))
- {
- srelgot = bfd_get_linker_section (dynobj, ".rela.got");
- if (srelgot == NULL)
- {
- flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY | SEC_LINKER_CREATED
- | SEC_READONLY);
- srelgot = bfd_make_section_anyway_with_flags (dynobj,
- ".rela.got",
- flags);
- if (srelgot == NULL
- || !bfd_set_section_alignment (dynobj, srelgot, 2))
- return FALSE;
- }
- }
-
if (got == NULL)
{
struct elf_m68k_bfd2got_entry *bfd2got_entry;
will be set later (it is never cleared). We account for that
possibility below by storing information in the
pcrel_relocs_copied field of the hash table entry. */
- if (!(info->shared
+ if (!(bfd_link_pic (info)
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
- && (!info->symbolic
+ && (!SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
|| !h->def_regular)))
{
turns out to be a function defined by a dynamic object. */
h->plt.refcount++;
- if (info->executable)
+ if (bfd_link_executable (info))
/* This symbol needs a non-GOT reference. */
h->non_got_ref = 1;
}
/* If we are creating a shared library, we need to copy the
reloc into the shared library. */
- if (info->shared)
+ if (bfd_link_pic (info))
{
/* When creating a shared object, we must copy these
reloc types into the output file. We create a reloc
bfd *dynobj;
struct elf_m68k_got *got;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
asection *s;
htab = elf_m68k_hash_table (info);
- dynobj = elf_hash_table (info)->dynobj;
+ dynobj = htab->root.dynobj;
/* Make sure we know what is going on here. */
BFD_ASSERT (dynobj != NULL
return FALSE;
}
- s = bfd_get_linker_section (dynobj, ".plt");
+ s = htab->root.splt;
BFD_ASSERT (s != NULL);
/* If this is the first .plt entry, make room for the special
location in the .plt. This is required to make function
pointers compare as equal between the normal executable and
the shared library. */
- if (!info->shared
+ if (!bfd_link_pic (info)
&& !h->def_regular)
{
h->root.u.def.section = s;
/* We also need to make an entry in the .got.plt section, which
will be placed in the .got section by the linker script. */
- s = bfd_get_linker_section (dynobj, ".got.plt");
+ s = htab->root.sgotplt;
BFD_ASSERT (s != NULL);
s->size += 4;
/* We also need to make an entry in the .rela.plt section. */
- s = bfd_get_linker_section (dynobj, ".rela.plt");
+ s = htab->root.srelplt;
BFD_ASSERT (s != NULL);
s->size += sizeof (Elf32_External_Rela);
only references to the symbol are via the global offset table.
For such cases we need not do anything here; the relocations will
be handled correctly by relocate_section. */
- if (info->shared)
+ if (bfd_link_pic (info))
return TRUE;
/* If there are no references to this symbol that do not use the
h->needs_copy = 1;
}
- return _bfd_elf_adjust_dynamic_copy (h, s);
+ return _bfd_elf_adjust_dynamic_copy (info, h, s);
}
/* Set the sizes of the dynamic sections. */
if (elf_hash_table (info)->dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
- if (info->executable)
+ if (bfd_link_executable (info) && !info->nointerp)
{
s = bfd_get_linker_section (dynobj, ".interp");
BFD_ASSERT (s != NULL);
not actually use these entries. Reset the size of .rela.got,
which will cause it to get stripped from the output file
below. */
- s = bfd_get_linker_section (dynobj, ".rela.got");
+ s = elf_hash_table (info)->srelgot;
if (s != NULL)
s->size = 0;
}
against symbols that have become local due to visibility changes.
We allocated space for them in the check_relocs routine, but we
will not fill them in in the relocate_section routine. */
- if (info->shared)
+ if (bfd_link_pic (info))
elf_link_hash_traverse (elf_hash_table (info),
elf_m68k_discard_copies,
info);
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
- if (info->executable)
+ if (bfd_link_executable (info))
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
Elf_Internal_Sym *local_syms,
asection **local_sections)
{
- bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
asection *sgot;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
- dynobj = elf_hash_table (info)->dynobj;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
rel, 1, relend, howto, 0, contents);
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
continue;
switch (r_type)
bfd_vma sgot_output_offset;
bfd_vma got_offset;
- if (sgot == NULL)
- {
- sgot = bfd_get_linker_section (dynobj, ".got");
+ sgot = elf_hash_table (info)->sgot;
- if (sgot != NULL)
- sgot_output_offset = sgot->output_offset;
- else
- /* In this case we have a reference to
- _GLOBAL_OFFSET_TABLE_, but the GOT itself is
- empty.
- ??? Issue a warning? */
- sgot_output_offset = 0;
- }
- else
+ if (sgot != NULL)
sgot_output_offset = sgot->output_offset;
+ else
+ /* In this case we have a reference to
+ _GLOBAL_OFFSET_TABLE_, but the GOT itself is
+ empty.
+ ??? Issue a warning? */
+ sgot_output_offset = 0;
if (got == NULL)
{
bfd_vma *off_ptr;
bfd_vma off;
- if (sgot == NULL)
- {
- sgot = bfd_get_linker_section (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
+ sgot = elf_hash_table (info)->sgot;
+ BFD_ASSERT (sgot != NULL);
if (got == NULL)
{
bfd_boolean dyn;
dyn = elf_hash_table (info)->dynamic_sections_created;
- if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
- || (info->shared
+ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
+ bfd_link_pic (info),
+ h)
+ || (bfd_link_pic (info)
&& SYMBOL_REFERENCES_LOCAL (info, h))
|| (ELF_ST_VISIBILITY (h->other)
&& h->root.type == bfd_link_hash_undefweak))
else
unresolved_reloc = FALSE;
}
- else if (info->shared) /* && h == NULL */
+ else if (bfd_link_pic (info)) /* && h == NULL */
/* Process local symbol during dynamic link. */
{
- if (srela == NULL)
- {
- srela = bfd_get_linker_section (dynobj, ".rela.got");
- BFD_ASSERT (srela != NULL);
- }
+ srela = elf_hash_table (info)->srelgot;
+ BFD_ASSERT (srela != NULL);
elf_m68k_init_got_entry_local_shared (info,
output_bfd,
*off_ptr |= 1;
}
- else /* h == NULL && !info->shared */
+ else /* h == NULL && !bfd_link_pic (info) */
{
elf_m68k_init_got_entry_static (info,
output_bfd,
case R_68K_TLS_LE32:
case R_68K_TLS_LE16:
case R_68K_TLS_LE8:
- if (info->shared && !info->pie)
+ if (bfd_link_dll (info))
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B(%A+0x%lx): R_68K_TLS_LE32 relocation not permitted "
"in shared object"),
input_bfd, input_section, (long) rel->r_offset, howto->name);
break;
}
- if (splt == NULL)
- {
- splt = bfd_get_linker_section (dynobj, ".plt");
- BFD_ASSERT (splt != NULL);
- }
+ splt = elf_hash_table (info)->splt;
+ BFD_ASSERT (splt != NULL);
relocation = (splt->output_section->vma
+ splt->output_offset
the procedure linkage table. */
BFD_ASSERT (h != NULL && h->plt.offset != (bfd_vma) -1);
- if (splt == NULL)
- {
- splt = bfd_get_linker_section (dynobj, ".plt");
- BFD_ASSERT (splt != NULL);
- }
+ splt = elf_hash_table (info)->splt;
+ BFD_ASSERT (splt != NULL);
relocation = h->plt.offset;
unresolved_reloc = FALSE;
case R_68K_PC8:
case R_68K_PC16:
case R_68K_PC32:
- if (info->shared
+ if (bfd_link_pic (info)
&& r_symndx != STN_UNDEF
&& (input_section->flags & SEC_ALLOC) != 0
&& (h == NULL
&& (r_type == R_68K_PC8
|| r_type == R_68K_PC16
|| r_type == R_68K_PC32
- || !info->shared
- || !info->symbolic
+ || !bfd_link_pic (info)
+ || !SYMBOLIC_BIND (info, h)
|| !h->def_regular))
{
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
&& _bfd_elf_section_offset (output_bfd, info, input_section,
rel->r_offset) != (bfd_vma) -1)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
input_bfd,
input_section,
name = bfd_section_name (input_bfd, sec);
}
- (*_bfd_error_handler)
+ _bfd_error_handler
((sym_type == STT_TLS
+ /* xgettext:c-format */
? _("%B(%A+0x%lx): %s used with TLS symbol %s")
+ /* xgettext:c-format */
: _("%B(%A+0x%lx): %s used with non-TLS symbol %s")),
input_bfd,
input_section,
}
if (r == bfd_reloc_overflow)
- {
- if (!(info->callbacks->reloc_overflow
- (info, (h ? &h->root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
- }
+ (*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
else
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B(%A+0x%lx): reloc against `%s': error %d"),
input_bfd, input_section,
(long) rel->r_offset, name, (int) r);
BFD_ASSERT (h->dynindx != -1);
plt_info = elf_m68k_hash_table (info)->plt_info;
- splt = bfd_get_linker_section (dynobj, ".plt");
- sgot = bfd_get_linker_section (dynobj, ".got.plt");
- srela = bfd_get_linker_section (dynobj, ".rela.plt");
+ splt = elf_hash_table (info)->splt;
+ sgot = elf_hash_table (info)->sgotplt;
+ srela = elf_hash_table (info)->srelplt;
BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
/* Get the index in the procedure linkage table which
/* This symbol has an entry in the global offset table. Set it
up. */
- sgot = bfd_get_linker_section (dynobj, ".got");
- srela = bfd_get_linker_section (dynobj, ".rela.got");
+ sgot = elf_hash_table (info)->sgot;
+ srela = elf_hash_table (info)->srelgot;
BFD_ASSERT (sgot != NULL && srela != NULL);
got_entry = elf_m68k_hash_entry (h)->glist;
the symbol was forced to be local because of a version file.
The entry in the global offset table already have been
initialized in the relocate_section function. */
- if (info->shared
+ if (bfd_link_pic (info)
&& SYMBOL_REFERENCES_LOCAL (info, h))
{
bfd_vma relocation;
dynobj = elf_hash_table (info)->dynobj;
- sgot = bfd_get_linker_section (dynobj, ".got.plt");
+ sgot = elf_hash_table (info)->sgotplt;
BFD_ASSERT (sgot != NULL);
sdyn = bfd_get_linker_section (dynobj, ".dynamic");
asection *splt;
Elf32_External_Dyn *dyncon, *dynconend;
- splt = bfd_get_linker_section (dynobj, ".plt");
+ splt = elf_hash_table (info)->splt;
BFD_ASSERT (splt != NULL && sdyn != NULL);
dyncon = (Elf32_External_Dyn *) sdyn->contents;
for (; dyncon < dynconend; dyncon++)
{
Elf_Internal_Dyn dyn;
- const char *name;
asection *s;
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
break;
case DT_PLTGOT:
- name = ".got";
+ s = elf_hash_table (info)->sgotplt;
goto get_vma;
case DT_JMPREL:
- name = ".rela.plt";
+ s = elf_hash_table (info)->srelplt;
get_vma:
- s = bfd_get_section_by_name (output_bfd, name);
- BFD_ASSERT (s != NULL);
- dyn.d_un.d_ptr = s->vma;
+ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_PLTRELSZ:
- s = bfd_get_section_by_name (output_bfd, ".rela.plt");
- BFD_ASSERT (s != NULL);
+ s = elf_hash_table (info)->srelplt;
dyn.d_un.d_val = s->size;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
-
- case DT_RELASZ:
- /* The procedure linkage table relocs (DT_JMPREL) should
- not be included in the overall relocs (DT_RELA).
- Therefore, we override the DT_RELASZ entry here to
- make it not include the JMPREL relocs. Since the
- linker script arranges for .rela.plt to follow all
- other relocation sections, we don't have to worry
- about changing the DT_RELA entry. */
- s = bfd_get_section_by_name (output_bfd, ".rela.plt");
- if (s != NULL)
- dyn.d_un.d_val -= s->size;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
- break;
}
}
objects, and before the final_link entry point is called. */
bfd_boolean
-bfd_m68k_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *datasec;
- asection *relsec;
- char **errmsg;
+bfd_m68k_elf32_create_embedded_relocs (bfd *abfd, struct bfd_link_info *info,
+ asection *datasec, asection *relsec,
+ char **errmsg)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Sym *isymbuf = NULL;
bfd_byte *p;
bfd_size_type amt;
- BFD_ASSERT (! info->relocatable);
+ BFD_ASSERT (! bfd_link_relocatable (info));
*errmsg = NULL;
asection **secp ATTRIBUTE_UNUSED,
bfd_vma *valp ATTRIBUTE_UNUSED)
{
- if ((abfd->flags & DYNAMIC) == 0
- && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
- || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
- elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
+ if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
+ && (abfd->flags & DYNAMIC) == 0
+ && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
+ elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
return TRUE;
}
_bfd_elf_create_dynamic_sections
#define bfd_elf32_bfd_link_hash_table_create \
elf_m68k_link_hash_table_create
-/* ??? Should it be this macro or bfd_elfNN_bfd_link_hash_table_create? */
-#define bfd_elf32_bfd_link_hash_table_free \
- elf_m68k_link_hash_table_free
#define bfd_elf32_bfd_final_link bfd_elf_final_link
#define elf_backend_check_relocs elf_m68k_check_relocs
#define elf_backend_want_plt_sym 0
#define elf_backend_got_header_size 12
#define elf_backend_rela_normal 1
+#define elf_backend_dtrel_excludes_plt 1
#include "elf32-target.h"
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