/* VAX series support for 32-bit ELF
- Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
- Free Software Foundation, Inc.
+ Copyright (C) 1993-2016 Free Software Foundation, Inc.
Contributed by Matt Thomas <matt@3am-software.com>.
This file is part of BFD, the Binary File Descriptor library.
static reloc_howto_type howto_table[] = {
HOWTO (R_VAX_NONE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
};
static void
-rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
- Elf_Internal_Rela *dst)
+rtype_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
{
- BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_VAX_max);
- cache_ptr->howto = &howto_table[ELF32_R_TYPE(dst->r_info)];
+ 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"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ r_type = R_VAX_NONE;
+ }
+ cache_ptr->howto = &howto_table[r_type];
}
#define elf_info_to_howto rtype_to_howto
asection *srelgot;
asection *sreloc;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
{
case R_VAX_GOT32:
BFD_ASSERT (h != NULL);
- if (h->forced_local
- || h == elf_hash_table (info)->hgot
- || h == elf_hash_table (info)->hplt)
- break;
/* If this is a local symbol, we resolve it directly without
creating a global offset table entry. */
- if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
+ if (h->forced_local
+ || h == elf_hash_table (info)->hgot
+ || h == elf_hash_table (info)->hplt)
break;
/* This symbol requires a global offset table entry. */
}
if (srelgot == NULL
- && (h != NULL || info->shared))
+ && (h != NULL || bfd_link_pic (info)))
{
srelgot = bfd_get_linker_section (dynobj, ".rela.got");
if (srelgot == NULL)
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
creating a procedure linkage table entry. */
- BFD_ASSERT (h != NULL);
- if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT || h->forced_local)
+ if (h->forced_local)
break;
h->needs_plt = 1;
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
/* 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)
&& (sec->flags & SEC_ALLOC) != 0)
{
/* When creating a shared object, we must copy these
const Elf_Internal_Rela *rel, *relend;
bfd *dynobj;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
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;
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;
/* We must allocate the symbol in our .dynbss section, which will
h->needs_copy = 1;
}
- return _bfd_elf_adjust_dynamic_copy (h, s);
+ return _bfd_elf_adjust_dynamic_copy (info, h, s);
}
/* This function is called via elf_link_hash_traverse. It resets GOT
/* We may have created entries in the .rela.got and .got sections.
However, if we are not creating the dynamic sections, we will
not actually use these entries. Reset the size of .rela.got
- and .got, which will cause it to get stripped from the output
+ and .got, which will cause them to get stripped from the output
file below. */
s = bfd_get_linker_section (dynobj, ".rela.got");
if (s != NULL)
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);
relative relocs against symbols defined in a regular object. 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 && info->symbolic)
+ if (bfd_link_pic (info) && info->symbolic)
elf_vax_link_hash_traverse (elf_hash_table (info),
elf_vax_discard_copies,
NULL);
continue;
/* Allocate memory for the section contents. */
- s->contents = (bfd_byte *) bfd_alloc (dynobj, s->size);
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
if (s->contents == NULL)
return FALSE;
}
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
- if (!info->shared)
+ if (!bfd_link_pic (info))
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
sgot = bfd_get_linker_section (dynobj, ".got");
srelgot = bfd_get_linker_section (dynobj, ".rela.got");
- if ((info->shared && info->symbolic)
- || h->forced_local)
+ if (SYMBOL_REFERENCES_LOCAL (info, h))
{
h->got.refcount = -1;
h->plt.refcount = -1;
}
else if (h->got.refcount > 0)
{
- bfd_boolean dyn;
-
/* Make sure this symbol is output as a dynamic symbol. */
if (h->dynindx == -1)
{
return FALSE;
}
- dyn = elf_hash_table (info)->dynamic_sections_created;
/* Allocate space in the .got and .rela.got sections. */
- if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- && (info->shared
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
- {
- sgot->size += 4;
- srelgot->size += sizeof (Elf32_External_Rela);
- }
+ sgot->size += 4;
+ srelgot->size += sizeof (Elf32_External_Rela);
}
return TRUE;
else
{
bfd_boolean unresolved_reloc;
- bfd_boolean warned;
+ bfd_boolean warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
- unresolved_reloc, warned);
+ unresolved_reloc, warned, ignored);
if ((h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& h->got.offset != (bfd_vma) -1
&& !h->forced_local
&& elf_hash_table (info)->dynamic_sections_created
- && (! info->shared
+ && (! bfd_link_pic (info)
|| (! info->symbolic && h->dynindx != -1)
|| !h->def_regular))
- || (info->shared
+ || (bfd_link_pic (info)
&& ((! info->symbolic && h->dynindx != -1)
|| !h->def_regular)
&& ((input_section->flags & SEC_ALLOC) != 0
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)
case R_VAX_GOT32:
/* Relocation is to the address of the entry for this symbol
in the global offset table. */
+
+ /* Resolve a GOTxx reloc against a local symbol directly,
+ without using the global offset table. */
if (h == NULL
- || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- || h->got.offset == (bfd_vma) -1
- || h->forced_local)
+ || h->got.offset == (bfd_vma) -1)
break;
- /* Relocation is the offset of the entry for this symbol in
- the global offset table. */
-
{
- bfd_boolean dyn;
bfd_vma off;
if (sgot == NULL)
BFD_ASSERT (sgot != NULL);
}
- BFD_ASSERT (h != NULL);
off = h->got.offset;
- BFD_ASSERT (off != (bfd_vma) -1);
BFD_ASSERT (off < sgot->size);
- dyn = elf_hash_table (info)->dynamic_sections_created;
- if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
- || (info->shared
- && SYMBOL_REFERENCES_LOCAL (info, h)))
- {
- /* The symbol was forced to be local
- because of a version file.. We must initialize
- this entry in the global offset table. Since
- the offset must always be a multiple of 4, we
- use the least significant bit to record whether
- we have initialized it already.
-
- When doing a dynamic link, we create a .rela.got
- relocation entry to initialize the value. This
- is done in the finish_dynamic_symbol routine. */
- if ((off & 1) != 0)
- off &= ~1;
- else
- {
- bfd_put_32 (output_bfd, relocation + rel->r_addend,
- sgot->contents + off);
- h->got.offset |= 1;
- }
- } else {
- bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off);
- }
+ bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off);
relocation = sgot->output_offset + off;
/* The GOT relocation uses the addend. */
reloc refers to is in a shared lib, then we made a PLT
entry for this symbol and need to handle the reloc like
a PLT reloc. */
- if (info->shared)
+ if (bfd_link_pic (info))
goto r_vax_pc32_shared;
/* Fall through. */
case R_VAX_PLT32:
/* Resolve a PLTxx reloc against a local symbol directly,
without using the procedure linkage table. */
if (h == NULL
- || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- || h->forced_local)
+ || h->plt.offset == (bfd_vma) -1)
break;
- if (h->plt.offset == (bfd_vma) -1
- || !elf_hash_table (info)->dynamic_sections_created)
- {
- /* We didn't make a PLT entry for this symbol. This
- happens when statically linking PIC code, or when
- using -Bsymbolic. */
- break;
- }
-
if (splt == NULL)
{
splt = bfd_get_linker_section (dynobj, ".plt");
case R_VAX_8:
case R_VAX_16:
case R_VAX_32:
- if (info->shared
+ if (bfd_link_pic (info)
&& r_symndx != STN_UNDEF
&& (input_section->flags & SEC_ALLOC) != 0
&& ((r_type != R_VAX_PC8
rela.r_offset = (sgot->output_section->vma
+ sgot->output_offset
- + (h->got.offset &~ 1));
-
- /* If the symbol was forced to be local because of a version file
- locally we just want to emit a RELATIVE reloc. The entry in
- the global offset table will already have been initialized in
- the relocate_section function. */
- if (info->shared
- && h->dynindx == -1
- && h->def_regular)
- {
- rela.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE);
- }
- else
- {
- rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_GLOB_DAT);
- }
+ + h->got.offset);
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_GLOB_DAT);
rela.r_addend = bfd_get_signed_32 (output_bfd,
- (sgot->contents
- + (h->got.offset & ~1)));
+ sgot->contents + h->got.offset);
loc = srela->contents;
loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
}
- elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
+ if (elf_section_data (sgot->output_section) != NULL)
+ elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
return TRUE;
}
return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
}
-#define TARGET_LITTLE_SYM bfd_elf32_vax_vec
+#define TARGET_LITTLE_SYM vax_elf32_vec
#define TARGET_LITTLE_NAME "elf32-vax"
#define ELF_MACHINE_CODE EM_VAX
#define ELF_MAXPAGESIZE 0x1000
projects / deliverable / binutils-gdb.git / blobdiff