/* M32R-specific support for 32-bit ELF.
- Copyright (C) 1996-2019 Free Software Foundation, Inc.
+ Copyright (C) 1996-2020 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
asection *sec,
int *retval)
{
- if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
+ if (strcmp (bfd_section_name (sec), ".scommon") == 0)
{
*retval = SHN_M32R_SCOMMON;
return TRUE;
flags);
if (s == NULL)
return FALSE;
- if (! bfd_set_section_alignment (abfd, s, 2))
+ if (!bfd_set_section_alignment (s, 2))
return FALSE;
}
bfd_size_type count;
};
-/* m32r ELF linker hash entry. */
-
-struct elf_m32r_link_hash_entry
-{
- struct elf_link_hash_entry root;
-
- /* Track dynamic relocs copied for this symbol. */
- struct elf_dyn_relocs *dyn_relocs;
-};
-
/* m32r ELF linker hash table. */
struct elf_m32r_link_hash_table
(elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
== M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
-/* Create an entry in an m32r ELF linker hash table. */
-
-static struct bfd_hash_entry *
-m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
- struct bfd_hash_table *table,
- const char *string)
-{
- struct elf_m32r_link_hash_entry *ret =
- (struct elf_m32r_link_hash_entry *) entry;
-
- /* Allocate the structure if it has not already been allocated by a
- subclass. */
- if (ret == NULL)
- ret = bfd_hash_allocate (table,
- sizeof (struct elf_m32r_link_hash_entry));
- if (ret == NULL)
- return NULL;
-
- /* Call the allocation method of the superclass. */
- ret = ((struct elf_m32r_link_hash_entry *)
- _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
- table, string));
- if (ret != NULL)
- {
- struct elf_m32r_link_hash_entry *eh;
-
- eh = (struct elf_m32r_link_hash_entry *) ret;
- eh->dyn_relocs = NULL;
- }
-
- return (struct bfd_hash_entry *) ret;
-}
-
/* Create an m32r ELF linker hash table. */
static struct bfd_link_hash_table *
m32r_elf_link_hash_table_create (bfd *abfd)
{
struct elf_m32r_link_hash_table *ret;
- bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
+ size_t amt = sizeof (struct elf_m32r_link_hash_table);
ret = bfd_zmalloc (amt);
if (ret == NULL)
return NULL;
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
- m32r_elf_link_hash_newfunc,
- sizeof (struct elf_m32r_link_hash_entry),
+ _bfd_elf_link_hash_newfunc,
+ sizeof (struct elf_link_hash_entry),
M32R_ELF_DATA))
{
free (ret);
s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
htab->root.splt = s;
if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
+ || !bfd_set_section_alignment (s, bed->plt_alignment))
return FALSE;
if (bed->want_plt_sym)
flags | SEC_READONLY);
htab->root.srelplt = s;
if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, ptralign))
+ || !bfd_set_section_alignment (s, ptralign))
return FALSE;
if (htab->root.sgot == NULL
flags | SEC_READONLY);
htab->srelbss = s;
if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, ptralign))
+ || !bfd_set_section_alignment (s, ptralign))
return FALSE;
}
}
return TRUE;
}
-/* Copy the extra info we tack onto an elf_link_hash_entry. */
-
-static void
-m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
- struct elf_link_hash_entry *dir,
- struct elf_link_hash_entry *ind)
-{
- struct elf_m32r_link_hash_entry * edir;
- struct elf_m32r_link_hash_entry * eind;
-
- edir = (struct elf_m32r_link_hash_entry *) dir;
- eind = (struct elf_m32r_link_hash_entry *) ind;
-
- if (eind->dyn_relocs != NULL)
- {
- if (edir->dyn_relocs != NULL)
- {
- struct elf_dyn_relocs **pp;
- struct elf_dyn_relocs *p;
-
- /* Add reloc counts against the indirect sym to the direct sym
- list. Merge any entries against the same section. */
- for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
- {
- struct elf_dyn_relocs *q;
-
- for (q = edir->dyn_relocs; q != NULL; q = q->next)
- if (q->sec == p->sec)
- {
- q->pc_count += p->pc_count;
- q->count += p->count;
- *pp = p->next;
- break;
- }
- if (q == NULL)
- pp = &p->next;
- }
- *pp = edir->dyn_relocs;
- }
-
- edir->dyn_relocs = eind->dyn_relocs;
- eind->dyn_relocs = NULL;
- }
-
- _bfd_elf_link_hash_copy_indirect (info, dir, ind);
-}
-
\f
-/* Find dynamic relocs for H that apply to read-only sections. */
-
-static asection *
-readonly_dynrelocs (struct elf_link_hash_entry *h)
-{
- struct elf_dyn_relocs *p;
- struct elf_m32r_link_hash_entry *eh = (struct elf_m32r_link_hash_entry *) h;
-
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- asection *s = p->sec->output_section;
-
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- return p->sec;
- }
- return NULL;
-}
-
/* 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
/* If we don't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
- if (0 && !readonly_dynrelocs (h))
+ if (0 && !_bfd_elf_readonly_dynrelocs (h))
{
h->non_got_ref = 0;
return TRUE;
{
struct bfd_link_info *info;
struct elf_m32r_link_hash_table *htab;
- struct elf_m32r_link_hash_entry *eh;
struct elf_dyn_relocs *p;
if (h->root.type == bfd_link_hash_indirect)
if (htab == NULL)
return FALSE;
- eh = (struct elf_m32r_link_hash_entry *) h;
-
if (htab->root.dynamic_sections_created
&& h->plt.refcount > 0)
{
else
h->got.offset = (bfd_vma) -1;
- if (eh->dyn_relocs == NULL)
+ if (h->dyn_relocs == NULL)
return TRUE;
/* In the shared -Bsymbolic case, discard space allocated for
{
struct elf_dyn_relocs **pp;
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
+ for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
{
p->count -= p->pc_count;
p->pc_count = 0;
/* Also discard relocs on undefined weak syms with non-default
visibility. */
- if (eh->dyn_relocs != NULL
+ if (h->dyn_relocs != NULL
&& h->root.type == bfd_link_hash_undefweak)
{
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
- eh->dyn_relocs = NULL;
+ h->dyn_relocs = NULL;
/* Make sure undefined weak symbols are output as a dynamic
symbol in PIEs. */
goto keep;
}
- eh->dyn_relocs = NULL;
+ h->dyn_relocs = NULL;
keep: ;
}
/* Finally, allocate space. */
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ for (p = h->dyn_relocs; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->sec)->sreloc;
sreloc->size += p->count * sizeof (Elf32_External_Rela);
return TRUE;
}
-/* Set DF_TEXTREL if we find any dynamic relocs that apply to
- read-only sections. */
-
-static bfd_boolean
-maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
-{
- asection *sec;
-
- if (h->root.type == bfd_link_hash_indirect)
- return TRUE;
-
- sec = readonly_dynrelocs (h);
- if (sec != NULL)
- {
- struct bfd_link_info *info = (struct bfd_link_info *) info_p;
-
- info->flags |= DF_TEXTREL;
- info->callbacks->minfo
- (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
- sec->owner, h->root.root.string, sec);
-
- /* Not an error, just cut short the traversal. */
- return FALSE;
- }
- return TRUE;
-}
-
/* Set the sizes of the dynamic sections. */
static bfd_boolean
/* Strip this section if we don't need it; see the
comment below. */
}
- else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
+ else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
{
if (s->size != 0 && s != htab->root.srelplt)
relocs = TRUE;
/* If any dynamic relocs apply to a read-only section,
then we need a DT_TEXTREL entry. */
if ((info->flags & DF_TEXTREL) == 0)
- elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
+ elf_link_hash_traverse (&htab->root,
+ _bfd_elf_maybe_set_textrel, info);
if ((info->flags & DF_TEXTREL) != 0)
{
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
;
else if (!bfd_link_relocatable (info))
- (*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, offset,
- (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
- || ELF_ST_VISIBILITY (h->other)));
- }
+ info->callbacks->undefined_symbol
+ (info, h->root.root.string, input_bfd, input_section, offset,
+ (info->unresolved_syms_in_objects == RM_DIAGNOSE
+ && !info->warn_unresolved_syms)
+ || ELF_ST_VISIBILITY (h->other));
+ }
if (sec != NULL && discarded_section (sec))
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
const char *name;
BFD_ASSERT (sec != NULL);
- name = bfd_get_section_name (sec->owner, sec);
+ name = bfd_section_name (sec);
if ( strcmp (name, ".sdata") == 0
|| strcmp (name, ".sbss") == 0
name = (bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name));
if (name == NULL || *name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ name = bfd_section_name (sec);
}
if (errmsg != NULL)
/* Store the machine number in the flags field. */
-static void
-m32r_elf_final_write_processing (bfd *abfd,
- bfd_boolean linker ATTRIBUTE_UNUSED)
+static bfd_boolean
+m32r_elf_final_write_processing (bfd *abfd)
{
unsigned long val;
elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
elf_elfheader (abfd)->e_flags |= val;
+ return _bfd_elf_final_write_processing (abfd);
}
/* Function to keep M32R specific file flags. */
/* If this is a global symbol, we count the number of
relocations we need for this symbol. */
if (h != NULL)
- head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
+ head = &h->dyn_relocs;
else
{
/* Track dynamic relocs needed for local syms too. */
p = *head;
if (p == NULL || p->sec != sec)
{
- bfd_size_type amt = sizeof (*p);
+ size_t amt = sizeof (*p);
p = bfd_alloc (dynobj, amt);
if (p == NULL)
{ NULL, 0, 0, 0, 0 }
};
+static bfd_boolean
+m32r_elf_section_flags (const Elf_Internal_Shdr *hdr)
+{
+ const char *name = hdr->bfd_section->name;
+
+ if (strncmp (name, ".sbss", 5) == 0
+ || strncmp (name, ".sdata", 6) == 0)
+ hdr->bfd_section->flags |= SEC_SMALL_DATA;
+
+ return TRUE;
+}
+
static enum elf_reloc_type_class
m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
const asection *rel_sec ATTRIBUTE_UNUSED,
#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
-#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
#define elf_backend_can_gc_sections 1
/*#if !USE_REL
#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
#define elf_backend_special_sections m32r_elf_special_sections
+#define elf_backend_section_flags m32r_elf_section_flags
#define elf_backend_linux_prpsinfo32_ugid16 TRUE
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