/* VAX series support for 32-bit ELF
- Copyright (C) 1993-2016 Free Software Foundation, Inc.
+ Copyright (C) 1993-2020 Free Software Foundation, Inc.
Contributed by Matt Thomas <matt@3am-software.com>.
This file is part of BFD, the Binary File Descriptor library.
#include "elf/vax.h"
static reloc_howto_type *reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
-static void rtype_to_howto (bfd *, arelent *, Elf_Internal_Rela *);
+static bfd_boolean rtype_to_howto (bfd *, arelent *, Elf_Internal_Rela *);
static struct bfd_hash_entry *elf_vax_link_hash_newfunc (struct bfd_hash_entry *,
struct bfd_hash_table *,
const char *);
const arelent *);
static bfd_boolean elf32_vax_set_private_flags (bfd *, flagword);
-static bfd_boolean elf32_vax_merge_private_bfd_data (bfd *, bfd *);
static bfd_boolean elf32_vax_print_private_bfd_data (bfd *, void *);
static reloc_howto_type howto_table[] = {
FALSE), /* pcrel_offset */
};
-static void
+static bfd_boolean
rtype_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
if (r_type >= R_VAX_max)
{
- _bfd_error_handler (_("%B: unrecognised VAX reloc number: %d"),
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
abfd, r_type);
bfd_set_error (bfd_error_bad_value);
- r_type = R_VAX_NONE;
+ return FALSE;
}
cache_ptr->howto = &howto_table[r_type];
+ return TRUE;
}
#define elf_info_to_howto rtype_to_howto
elf_vax_link_hash_table_create (bfd *abfd)
{
struct elf_link_hash_table *ret;
- bfd_size_type amt = sizeof (struct elf_link_hash_table);
+ size_t amt = sizeof (struct elf_link_hash_table);
ret = bfd_zmalloc (amt);
if (ret == NULL)
/* Merge backend specific data from an object file to the output
object file when linking. */
static bfd_boolean
-elf32_vax_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+elf32_vax_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
{
+ bfd *obfd = info->output_bfd;
flagword in_flags;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
- asection *sgot;
- asection *srelgot;
asection *sreloc;
if (bfd_link_relocatable (info))
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sgot = NULL;
- srelgot = NULL;
sreloc = NULL;
rel_end = relocs + sec->reloc_count;
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
- /* PR15323, ref flags aren't set for references in the same
- object. */
- h->root.non_ir_ref = 1;
}
switch (ELF32_R_TYPE (rel->r_info))
return FALSE;
}
- if (sgot == NULL)
- {
- sgot = bfd_get_linker_section (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
-
- if (srelgot == NULL
- && (h != NULL || bfd_link_pic (info)))
- {
- 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 (h != NULL)
{
struct elf_vax_link_hash_entry *eh;
h->got.refcount++;
if (eh->got_addend != (bfd_vma) rel->r_addend)
_bfd_error_handler
- (_("%s: warning: GOT addend of %ld to `%s' does"
- " not match previous GOT addend of %ld"),
- bfd_get_filename (abfd), rel->r_addend,
- h->root.root.string,
- eh->got_addend);
+ /* xgettext:c-format */
+ (_("%pB: warning: GOT addend of %" PRId64 " to `%s' does"
+ " not match previous GOT addend of %" PRId64),
+ abfd, (int64_t) rel->r_addend, h->root.root.string,
+ (int64_t) eh->got_addend);
}
}
case R_VAX_PLT32:
/* This symbol requires a procedure linkage table entry. We
actually build the entry in adjust_dynamic_symbol,
- because this might be a case of linking PIC code which is
- never referenced by a dynamic object, in which case we
- don't need to generate a procedure linkage table entry
- after all. */
+ because this might be a case of linking PIC code which is
+ never referenced by a dynamic object, in which case we
+ don't need to generate a procedure linkage table entry
+ after all. */
BFD_ASSERT (h != NULL);
/* If this is a local symbol, we resolve it directly without
/* This relocation describes which C++ vtable entries are actually
used. Record for later use during GC. */
case R_VAX_GNU_VTENTRY:
- BFD_ASSERT (h != NULL);
- if (h != NULL
- && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
return FALSE;
break;
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
-/* Update the got entry reference counts for the section being removed. */
-
-static bfd_boolean
-elf_vax_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, asection *sec,
- const Elf_Internal_Rela *relocs)
-{
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- const Elf_Internal_Rela *rel, *relend;
- bfd *dynobj;
-
- if (bfd_link_relocatable (info))
- return TRUE;
-
- dynobj = elf_hash_table (info)->dynobj;
- if (dynobj == NULL)
- return TRUE;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (abfd);
-
- relend = relocs + sec->reloc_count;
- for (rel = relocs; rel < relend; rel++)
- {
- unsigned long r_symndx;
- struct elf_link_hash_entry *h = NULL;
-
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- }
-
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_VAX_GOT32:
- if (h != NULL && h->got.refcount > 0)
- --h->got.refcount;
- break;
-
- case R_VAX_PLT32:
- case R_VAX_PC8:
- case R_VAX_PC16:
- case R_VAX_PC32:
- case R_VAX_8:
- case R_VAX_16:
- case R_VAX_32:
- if (h != NULL && h->plt.refcount > 0)
- --h->plt.refcount;
- break;
-
- default:
- break;
- }
- }
-
- return TRUE;
-}
-
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. The current definition is in some section of the
dynamic object, but we're not including those sections. We have to
/* Make sure we know what is going on here. */
BFD_ASSERT (dynobj != NULL
&& (h->needs_plt
- || h->u.weakdef != NULL
+ || h->is_weakalias
|| (h->def_dynamic
&& h->ref_regular
&& !h->def_regular)));
return TRUE;
}
- s = bfd_get_linker_section (dynobj, ".plt");
+ s = elf_hash_table (info)->splt;
BFD_ASSERT (s != NULL);
/* If this is the first .plt entry, make room for the special
/* 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 = elf_hash_table (info)->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 = elf_hash_table (info)->srelplt;
BFD_ASSERT (s != NULL);
s->size += sizeof (Elf32_External_Rela);
/* If this is a weak symbol, and there is a real definition, the
processor independent code will have arranged for us to see the
real definition first, and we can just use the same value. */
- if (h->u.weakdef != NULL)
+ if (h->is_weakalias)
{
- BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
- || h->u.weakdef->root.type == bfd_link_hash_defweak);
- h->root.u.def.section = h->u.weakdef->root.u.def.section;
- h->root.u.def.value = h->u.weakdef->root.u.def.value;
+ struct elf_link_hash_entry *def = weakdef (h);
+ BFD_ASSERT (def->root.type == bfd_link_hash_defined);
+ h->root.u.def.section = def->root.u.def.section;
+ h->root.u.def.value = def->root.u.def.value;
return TRUE;
}
not actually use these entries. Reset the size of .rela.got
and .got, which will cause them 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;
- s = bfd_get_linker_section (dynobj, ".got.plt");
+ s = elf_hash_table (info)->sgotplt;
if (s != NULL)
s->size = 0;
- s = bfd_get_linker_section (dynobj, ".got");
+ s = elf_hash_table (info)->sgot;
if (s != NULL)
s->size = 0;
}
/* It's OK to base decisions on the section name, because none
of the dynobj section names depend upon the input files. */
- name = bfd_get_section_name (dynobj, s);
+ name = bfd_section_name (s);
if (strcmp (name, ".plt") == 0)
{
asection *target;
/* Remember whether there are any reloc sections other
- than .rela.plt. */
+ than .rela.plt. */
if (strcmp (name, ".rela.plt") != 0)
{
const char *outname;
section, then we probably need a DT_TEXTREL
entry. .rela.plt is actually associated with
.got.plt, which is never readonly. */
- outname = bfd_get_section_name (output_bfd,
- s->output_section);
+ outname = bfd_section_name (s->output_section);
target = bfd_get_section_by_name (output_bfd, outname + 5);
if (target != NULL
&& (target->flags & SEC_READONLY) != 0
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL);
- sgot = bfd_get_linker_section (dynobj, ".got");
- srelgot = bfd_get_linker_section (dynobj, ".rela.got");
+ sgot = elf_hash_table (info)->sgot;
+ srelgot = elf_hash_table (info)->srelgot;
if (SYMBOL_REFERENCES_LOCAL (info, h))
{
Elf_Internal_Sym *local_syms,
asection **local_sections)
{
- bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_vma plt_index;
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);
{
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);
off = h->got.offset;
BFD_ASSERT (off < sgot->size);
|| h->plt.offset == (bfd_vma) -1)
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);
- if (sgotplt == NULL)
- {
- sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
- BFD_ASSERT (sgotplt != NULL);
- }
+ sgotplt = elf_hash_table (info)->sgotplt;
+ BFD_ASSERT (sgotplt != NULL);
plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
}
else if (rel->r_addend != 0)
_bfd_error_handler
- (_("%s: warning: PLT addend of %d to `%s' from %s section ignored"),
- bfd_get_filename (input_bfd), rel->r_addend,
- h->root.root.string,
- bfd_get_section_name (input_bfd, input_section));
+ /* xgettext:c-format */
+ (_("%pB: warning: PLT addend of %" PRId64 " to `%s'"
+ " from %pA section ignored"),
+ input_bfd, (int64_t) rel->r_addend, h->root.root.string,
+ input_section);
rel->r_addend = 0;
break;
if (skip)
memset (&outrel, 0, sizeof outrel);
/* h->dynindx may be -1 if the symbol was marked to
- become local. */
+ become local. */
else if (h != NULL
&& ((! info->symbolic && h->dynindx != -1)
|| !h->def_regular))
{
if (h != NULL)
_bfd_error_handler
- (_("%s: warning: %s relocation against symbol `%s' from %s section"),
- bfd_get_filename (input_bfd), howto->name,
- h->root.root.string,
- bfd_get_section_name (input_bfd, input_section));
+ /* xgettext:c-format */
+ (_("%pB: warning: %s relocation against symbol `%s'"
+ " from %pA section"),
+ input_bfd, howto->name, h->root.root.string,
+ input_section);
else
_bfd_error_handler
- (_("%s: warning: %s relocation to 0x%x from %s section"),
- bfd_get_filename (input_bfd), howto->name,
- outrel.r_addend,
- bfd_get_section_name (input_bfd, input_section));
+ /* xgettext:c-format */
+ (_("%pB: warning: %s relocation to %#" PRIx64
+ " from %pA section"),
+ input_bfd, howto->name, (uint64_t) outrel.r_addend,
+ input_section);
}
loc = sreloc->contents;
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
/* This reloc will be computed at runtime, so there's no
- need to do anything now, except for R_VAX_32
- relocations that have been turned into
- R_VAX_RELATIVE. */
+ need to do anything now, except for R_VAX_32
+ relocations that have been turned into
+ R_VAX_RELATIVE. */
if (!relocate)
continue;
}
}
/* VAX PCREL relocations are from the end of relocation, not the start.
- So subtract the difference from the relocation amount since we can't
- add it to the offset. */
+ So subtract the difference from the relocation amount since we can't
+ add it to the offset. */
if (howto->pc_relative && howto->pcrel_offset)
relocation -= bfd_get_reloc_size(howto);
if (name == NULL)
return FALSE;
if (*name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ name = bfd_section_name (sec);
}
info->callbacks->reloc_overflow
(info, (h ? &h->root : NULL), name, howto->name,
it up. */
BFD_ASSERT (h->dynindx != -1);
- 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);
addend = 2 * (h->plt.offset & 1);
/* Fill in the entry in the procedure linkage table. */
memcpy (splt->contents + h->plt.offset, elf_vax_plt_entry,
- PLT_ENTRY_SIZE);
+ PLT_ENTRY_SIZE);
/* The offset is relative to the first extension word. */
bfd_put_32 (output_bfd,
/* 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);
rela.r_offset = (sgot->output_section->vma
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.plt";
+ 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_linker_section (dynobj, name);
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_linker_section (dynobj, ".rela.plt");
+ 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_linker_section (dynobj, ".rela.plt");
- if (s != NULL)
- dyn.d_un.d_val -= s->size;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
- break;
}
}
{
memcpy (splt->contents, elf_vax_plt0_entry, PLT_ENTRY_SIZE);
bfd_put_32 (output_bfd,
- (sgot->output_section->vma
- + sgot->output_offset + 4
- - (splt->output_section->vma + 6)),
- splt->contents + 2);
+ (sgot->output_section->vma
+ + sgot->output_offset + 4
+ - (splt->output_section->vma + 6)),
+ splt->contents + 2);
bfd_put_32 (output_bfd,
- (sgot->output_section->vma
- + sgot->output_offset + 8
- - (splt->output_section->vma + 12)),
- splt->contents + 8);
- elf_section_data (splt->output_section)->this_hdr.sh_entsize
- = PLT_ENTRY_SIZE;
+ (sgot->output_section->vma
+ + sgot->output_offset + 8
+ - (splt->output_section->vma + 12)),
+ splt->contents + 8);
+ elf_section_data (splt->output_section)->this_hdr.sh_entsize
+ = PLT_ENTRY_SIZE;
}
}
elf_vax_finish_dynamic_sections
#define elf_backend_reloc_type_class elf_vax_reloc_type_class
#define elf_backend_gc_mark_hook elf_vax_gc_mark_hook
-#define elf_backend_gc_sweep_hook elf_vax_gc_sweep_hook
#define elf_backend_plt_sym_val elf_vax_plt_sym_val
#define bfd_elf32_bfd_merge_private_bfd_data \
- elf32_vax_merge_private_bfd_data
+ elf32_vax_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags \
- elf32_vax_set_private_flags
+ elf32_vax_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data \
- elf32_vax_print_private_bfd_data
+ elf32_vax_print_private_bfd_data
#define elf_backend_can_gc_sections 1
#define elf_backend_want_got_plt 1
#define elf_backend_want_plt_sym 0
#define elf_backend_got_header_size 16
#define elf_backend_rela_normal 1
+#define elf_backend_dtrel_excludes_plt 1
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff