/* Motorola 68k series support for 32-bit ELF
Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
0, /* src_mask */
0, /* dst_mask */
FALSE),
+
+ /* TLS general dynamic variable reference. */
+ HOWTO (R_68K_TLS_GD32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_GD32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_GD16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_GD16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_GD8, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_GD8", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x000000ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* TLS local dynamic variable reference. */
+ HOWTO (R_68K_TLS_LDM32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LDM32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_LDM16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LDM16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_LDM8, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LDM8", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x000000ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_LDO32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LDO32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_LDO16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LDO16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_LDO8, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LDO8", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x000000ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* TLS initial execution variable reference. */
+ HOWTO (R_68K_TLS_IE32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_IE32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_IE16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_IE16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_IE8, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_IE8", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x000000ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* TLS local execution variable reference. */
+ HOWTO (R_68K_TLS_LE32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LE32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_LE16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LE16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_LE8, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_LE8", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x000000ff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* TLS GD/LD dynamic relocations. */
+ HOWTO (R_68K_TLS_DTPMOD32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_DTPMOD32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_DTPREL32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_DTPREL32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_68K_TLS_TPREL32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_68K_TLS_TPREL32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
};
static void
{
bfd_reloc_code_real_type bfd_val;
int elf_val;
-} reloc_map[] = {
+}
+ reloc_map[] =
+{
{ BFD_RELOC_NONE, R_68K_NONE },
{ BFD_RELOC_32, R_68K_32 },
{ BFD_RELOC_16, R_68K_16 },
{ BFD_RELOC_CTOR, R_68K_32 },
{ BFD_RELOC_VTABLE_INHERIT, R_68K_GNU_VTINHERIT },
{ BFD_RELOC_VTABLE_ENTRY, R_68K_GNU_VTENTRY },
+ { BFD_RELOC_68K_TLS_GD32, R_68K_TLS_GD32 },
+ { BFD_RELOC_68K_TLS_GD16, R_68K_TLS_GD16 },
+ { BFD_RELOC_68K_TLS_GD8, R_68K_TLS_GD8 },
+ { BFD_RELOC_68K_TLS_LDM32, R_68K_TLS_LDM32 },
+ { BFD_RELOC_68K_TLS_LDM16, R_68K_TLS_LDM16 },
+ { BFD_RELOC_68K_TLS_LDM8, R_68K_TLS_LDM8 },
+ { BFD_RELOC_68K_TLS_LDO32, R_68K_TLS_LDO32 },
+ { BFD_RELOC_68K_TLS_LDO16, R_68K_TLS_LDO16 },
+ { BFD_RELOC_68K_TLS_LDO8, R_68K_TLS_LDO8 },
+ { BFD_RELOC_68K_TLS_IE32, R_68K_TLS_IE32 },
+ { BFD_RELOC_68K_TLS_IE16, R_68K_TLS_IE16 },
+ { BFD_RELOC_68K_TLS_IE8, R_68K_TLS_IE8 },
+ { BFD_RELOC_68K_TLS_LE32, R_68K_TLS_LE32 },
+ { BFD_RELOC_68K_TLS_LE16, R_68K_TLS_LE16 },
+ { BFD_RELOC_68K_TLS_LE8, R_68K_TLS_LE8 },
};
static reloc_howto_type *
/* Symbol index. Either local symbol index or h->got_entry_key. */
unsigned long symndx;
+
+ /* Type is one of R_68K_GOT{8, 16, 32}O, R_68K_TLS_GD{8, 16, 32},
+ R_68K_TLS_LDM{8, 16, 32} or R_68K_TLS_IE{8, 16, 32}.
+
+ From perspective of hashtable key, only elf_m68k_got_reloc_type (type)
+ matters. That is, we distinguish between, say, R_68K_GOT16O
+ and R_68K_GOT32O when allocating offsets, but they are considered to be
+ the same when searching got->entries. */
+ enum elf_m68k_reloc_type type;
};
+/* Size of the GOT offset suitable for relocation. */
+enum elf_m68k_got_offset_size { R_8, R_16, R_32, R_LAST };
+
/* Entry of the GOT. */
struct elf_m68k_got_entry
{
/* Number of times this entry is referenced. It is used to
filter out unnecessary GOT slots in elf_m68k_gc_sweep_hook. */
bfd_vma refcount;
-
- /* Type is one of R_68K_GOT8O, R_68K_GOT16O or R_68K_GOT32O. */
- int type;
} s1;
struct
} u;
};
+/* Return representative type for relocation R_TYPE.
+ This is used to avoid enumerating many relocations in comparisons,
+ switches etc. */
+
+static enum elf_m68k_reloc_type
+elf_m68k_reloc_got_type (enum elf_m68k_reloc_type r_type)
+{
+ switch (r_type)
+ {
+ /* In most cases R_68K_GOTx relocations require the very same
+ handling as R_68K_GOT32O relocation. In cases when we need
+ to distinguish between the two, we use explicitly compare against
+ r_type. */
+ case R_68K_GOT32:
+ case R_68K_GOT16:
+ case R_68K_GOT8:
+ case R_68K_GOT32O:
+ case R_68K_GOT16O:
+ case R_68K_GOT8O:
+ return R_68K_GOT32O;
+
+ case R_68K_TLS_GD32:
+ case R_68K_TLS_GD16:
+ case R_68K_TLS_GD8:
+ return R_68K_TLS_GD32;
+
+ case R_68K_TLS_LDM32:
+ case R_68K_TLS_LDM16:
+ case R_68K_TLS_LDM8:
+ return R_68K_TLS_LDM32;
+
+ case R_68K_TLS_IE32:
+ case R_68K_TLS_IE16:
+ case R_68K_TLS_IE8:
+ return R_68K_TLS_IE32;
+
+ default:
+ BFD_ASSERT (FALSE);
+ return 0;
+ }
+}
+
+/* Return size of the GOT entry offset for relocation R_TYPE. */
+
+static enum elf_m68k_got_offset_size
+elf_m68k_reloc_got_offset_size (enum elf_m68k_reloc_type r_type)
+{
+ switch (r_type)
+ {
+ case R_68K_GOT32: case R_68K_GOT16: case R_68K_GOT8:
+ case R_68K_GOT32O: case R_68K_TLS_GD32: case R_68K_TLS_LDM32:
+ case R_68K_TLS_IE32:
+ return R_32;
+
+ case R_68K_GOT16O: case R_68K_TLS_GD16: case R_68K_TLS_LDM16:
+ case R_68K_TLS_IE16:
+ return R_16;
+
+ case R_68K_GOT8O: case R_68K_TLS_GD8: case R_68K_TLS_LDM8:
+ case R_68K_TLS_IE8:
+ return R_8;
+
+ default:
+ BFD_ASSERT (FALSE);
+ return 0;
+ }
+}
+
+/* Return number of GOT entries we need to allocate in GOT for
+ relocation R_TYPE. */
+
+static bfd_vma
+elf_m68k_reloc_got_n_slots (enum elf_m68k_reloc_type r_type)
+{
+ switch (elf_m68k_reloc_got_type (r_type))
+ {
+ case R_68K_GOT32O:
+ case R_68K_TLS_IE32:
+ return 1;
+
+ case R_68K_TLS_GD32:
+ case R_68K_TLS_LDM32:
+ return 2;
+
+ default:
+ BFD_ASSERT (FALSE);
+ return 0;
+ }
+}
+
+/* Return TRUE if relocation R_TYPE is a TLS one. */
+
+static bfd_boolean
+elf_m68k_reloc_tls_p (enum elf_m68k_reloc_type r_type)
+{
+ switch (r_type)
+ {
+ case R_68K_TLS_GD32: case R_68K_TLS_GD16: case R_68K_TLS_GD8:
+ case R_68K_TLS_LDM32: case R_68K_TLS_LDM16: case R_68K_TLS_LDM8:
+ case R_68K_TLS_LDO32: case R_68K_TLS_LDO16: case R_68K_TLS_LDO8:
+ case R_68K_TLS_IE32: case R_68K_TLS_IE16: case R_68K_TLS_IE8:
+ case R_68K_TLS_LE32: case R_68K_TLS_LE16: case R_68K_TLS_LE8:
+ case R_68K_TLS_DTPMOD32: case R_68K_TLS_DTPREL32: case R_68K_TLS_TPREL32:
+ return TRUE;
+
+ default:
+ return FALSE;
+ }
+}
+
/* Data structure representing a single GOT. */
struct elf_m68k_got
{
R_68K_GOT8O entries. */
htab_t entries;
- /* Number of R_68K_GOT8O entries in this GOT.
- This is used to detect the overflow of number of such entries. */
- bfd_vma rel_8o_n_entries;
+ /* Number of R_x slots in this GOT. Some (e.g., TLS) entries require
+ several GOT slots.
- /* Cumulative count of R_68K_GOT8O and R_68K_GOT16O entries in this GOT.
- This is used to detect the overflow of number of such entries. */
- bfd_vma rel_8o_16o_n_entries;
+ n_slots[R_8] is the count of R_8 slots in this GOT.
+ n_slots[R_16] is the cumulative count of R_8 and R_16 slots
+ in this GOT.
+ n_slots[R_32] is the cumulative count of R_8, R_16 and R_32 slots
+ in this GOT. This is the total number of slots. */
+ bfd_vma n_slots[R_LAST];
- /* Number of local (entry->key_.h == NULL) entries in this GOT.
+ /* Number of local (entry->key_.h == NULL) slots in this GOT.
This is only used to properly calculate size of .rela.got section;
see elf_m68k_partition_multi_got. */
- bfd_vma local_n_entries;
+ bfd_vma local_n_slots;
/* Offset of this GOT relative to beginning of .got section. */
bfd_vma offset;
Notes:
- GOT entry type: We have 3 types of GOT entries.
- * R_68K_GOT8O type is used in entries for symbols that have
- at least one R_68K_GOT8O relocation. We can have at most 0x40
+ GOT entry type: We have several types of GOT entries.
+ * R_8 type is used in entries for symbols that have at least one
+ R_68K_GOT8O or R_68K_TLS_*8 relocation. We can have at most 0x40
such entries in one GOT.
- * R_68K_GOT16O type is used in entries for symbols that have
- at least one R_68K_GOT16O relocation and no R_68K_GOT8O relocations.
+ * R_16 type is used in entries for symbols that have at least one
+ R_68K_GOT16O or R_68K_TLS_*16 relocation and no R_8 relocations.
We can have at most 0x4000 such entries in one GOT.
- * R_68K_GOT32O type is used in all other cases. We can have as many
- such entries in one GOT as we like.
+ * R_32 type is used in all other cases. We can have as many
+ such entries in one GOT as we'd like.
When counting relocations we have to include the count of the smaller
ranged relocations in the counts of the larger ranged ones in order
to correctly detect overflow.
Sorting the GOT: In each GOT starting offsets are assigned to
- R_68K_GOT8O entries, which are followed by R_68K_GOT16O entries, and
- R_68K_GOT32O entries go at the end. See finalize_got_offsets for details.
+ R_8 entries, which are followed by R_16 entries, and
+ R_32 entries go at the end. See finalize_got_offsets for details.
Negative GOT offsets: To double usable offset range of GOTs we use
negative offsets. As we assign entries with GOT offsets relative to
/* Initialize GOT. */
static void
-elf_m68k_init_got (struct elf_m68k_got *got,
- htab_t entries,
- bfd_vma rel_8o_n_entries,
- bfd_vma rel_8o_16o_n_entries,
- bfd_vma local_n_entries,
- bfd_vma offset)
-{
- got->entries = entries;
- got->rel_8o_n_entries = rel_8o_n_entries;
- got->rel_8o_16o_n_entries = rel_8o_16o_n_entries;
- got->local_n_entries = local_n_entries;
- got->offset = offset;
+elf_m68k_init_got (struct elf_m68k_got *got)
+{
+ got->entries = NULL;
+ got->n_slots[R_8] = 0;
+ got->n_slots[R_16] = 0;
+ got->n_slots[R_32] = 0;
+ got->local_n_slots = 0;
+ got->offset = (bfd_vma) -1;
}
/* Destruct GOT. */
if (got == NULL)
return NULL;
- elf_m68k_init_got (got, NULL, 0, 0, 0, (bfd_vma) -1);
+ elf_m68k_init_got (got);
return got;
}
static void
elf_m68k_init_got_entry_key (struct elf_m68k_got_entry_key *key,
struct elf_link_hash_entry *h,
- const bfd *abfd, unsigned long symndx)
+ const bfd *abfd, unsigned long symndx,
+ enum elf_m68k_reloc_type reloc_type)
{
- if (h != NULL)
+ if (elf_m68k_reloc_got_type (reloc_type) == R_68K_TLS_LDM32)
+ /* All TLS_LDM relocations share a single GOT entry. */
+ {
+ key->bfd = NULL;
+ key->symndx = 0;
+ }
+ else if (h != NULL)
+ /* Global symbols are identified with their got_entry_key. */
{
key->bfd = NULL;
key->symndx = elf_m68k_hash_entry (h)->got_entry_key;
BFD_ASSERT (key->symndx != 0);
}
else
+ /* Local symbols are identified by BFD they appear in and symndx. */
{
key->bfd = abfd;
key->symndx = symndx;
}
+
+ key->type = reloc_type;
}
/* Calculate hash of got_entry.
key = &((const struct elf_m68k_got_entry *) _entry)->key_;
- return key->symndx + (key->bfd != NULL
- ? (int) key->bfd->id
- : -1);
+ return (key->symndx
+ + (key->bfd != NULL ? (int) key->bfd->id : -1)
+ + elf_m68k_reloc_got_type (key->type));
}
/* Check if two got entries are equal. */
key2 = &((const struct elf_m68k_got_entry *) _entry2)->key_;
return (key1->bfd == key2->bfd
- && key1->symndx == key2->symndx);
+ && key1->symndx == key2->symndx
+ && (elf_m68k_reloc_got_type (key1->type)
+ == elf_m68k_reloc_got_type (key2->type)));
}
-/* Maximal number of R_68K_GOT8O entries in a single GOT. */
-#define ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT(INFO) \
+/* When using negative offsets, we allocate one extra R_8, one extra R_16
+ and one extra R_32 slots to simplify handling of 2-slot entries during
+ offset allocation -- hence -1 for R_8 slots and -2 for R_16 slots. */
+
+/* Maximal number of R_8 slots in a single GOT. */
+#define ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT(INFO) \
(elf_m68k_hash_table (INFO)->use_neg_got_offsets_p \
- ? 0x40 \
+ ? (0x40 - 1) \
: 0x20)
-/* Maximal number of R_68K_GOT8O and R_68K_GOT16O entries in a single GOT. */
-#define ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT(INFO) \
+/* Maximal number of R_8 and R_16 slots in a single GOT. */
+#define ELF_M68K_R_8_16_MAX_N_SLOTS_IN_GOT(INFO) \
(elf_m68k_hash_table (INFO)->use_neg_got_offsets_p \
- ? 0x4000 \
+ ? (0x4000 - 2) \
: 0x2000)
/* SEARCH - simply search the hashtable, don't insert new entries or fail when
if (howto == SEARCH)
return NULL;
- got->entries = htab_try_create (ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT
+ got->entries = htab_try_create (ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT
(info),
elf_m68k_got_entry_hash,
elf_m68k_got_entry_eq, NULL);
entry->key_ = *key;
entry->u.s1.refcount = 0;
- entry->u.s1.type = R_68K_GOT32O;
+
+ /* Mark the entry as not initialized. */
+ entry->key_.type = R_68K_max;
*ptr = entry;
}
/* Update GOT counters when merging entry of WAS type with entry of NEW type.
Return the value to which ENTRY's type should be set. */
-static int
-elf_m68k_update_got_entry_type (struct elf_m68k_got *got, int was, int new)
+static enum elf_m68k_reloc_type
+elf_m68k_update_got_entry_type (struct elf_m68k_got *got,
+ enum elf_m68k_reloc_type was,
+ enum elf_m68k_reloc_type new)
{
- if (new == R_68K_GOT8O && was != R_68K_GOT8O)
- /* NEW overrides WAS. */
+ enum elf_m68k_got_offset_size was_size;
+ enum elf_m68k_got_offset_size new_size;
+ bfd_vma n_slots;
+
+ if (was == R_68K_max)
+ /* The type of the entry is not initialized yet. */
{
- ++got->rel_8o_n_entries;
+ /* Update all got->n_slots counters, including n_slots[R_32]. */
+ was_size = R_LAST;
- if (was != R_68K_GOT16O)
- /* Update this counter too. */
- ++got->rel_8o_16o_n_entries;
+ was = new;
}
- else if (new == R_68K_GOT16O && was != R_68K_GOT8O && was != R_68K_GOT16O)
- /* NEW overrides WAS. */
- ++got->rel_8o_16o_n_entries;
else
- /* NEW doesn't override WAS. */
- new = was;
+ {
+ /* !!! We, probably, should emit an error rather then fail on assert
+ in such a case. */
+ BFD_ASSERT (elf_m68k_reloc_got_type (was)
+ == elf_m68k_reloc_got_type (new));
+
+ was_size = elf_m68k_reloc_got_offset_size (was);
+ }
- return new;
+ new_size = elf_m68k_reloc_got_offset_size (new);
+ n_slots = elf_m68k_reloc_got_n_slots (new);
+
+ while (was_size > new_size)
+ {
+ --was_size;
+ got->n_slots[was_size] += n_slots;
+ }
+
+ if (new > was)
+ /* Relocations are ordered from bigger got offset size to lesser,
+ so choose the relocation type with lesser offset size. */
+ was = new;
+
+ return was;
}
/* Update GOT counters when removing an entry of type TYPE. */
static void
-elf_m68k_remove_got_entry_type (struct elf_m68k_got *got, int type)
+elf_m68k_remove_got_entry_type (struct elf_m68k_got *got,
+ enum elf_m68k_reloc_type type)
{
- switch (type)
- {
- case R_68K_GOT8O:
- BFD_ASSERT (got->rel_8o_n_entries > 0);
-
- --got->rel_8o_n_entries;
- /* FALLTHRU */
-
- case R_68K_GOT16O:
- BFD_ASSERT (got->rel_8o_16o_n_entries >= got->rel_8o_n_entries);
+ enum elf_m68k_got_offset_size os;
+ bfd_vma n_slots;
- --got->rel_8o_16o_n_entries;
- /* FALLTHRU */
+ n_slots = elf_m68k_reloc_got_n_slots (type);
- case R_68K_GOT32O:
- break;
+ /* Decrese counter of slots with offset size corresponding to TYPE
+ and all greater offset sizes. */
+ for (os = elf_m68k_reloc_got_offset_size (type); os <= R_32; ++os)
+ {
+ BFD_ASSERT (got->n_slots[os] >= n_slots);
- default:
- BFD_ASSERT (FALSE);
+ got->n_slots[os] -= n_slots;
}
}
elf_m68k_add_entry_to_got (struct elf_m68k_got *got,
struct elf_link_hash_entry *h,
const bfd *abfd,
- int type, unsigned long symndx,
+ enum elf_m68k_reloc_type reloc_type,
+ unsigned long symndx,
struct bfd_link_info *info)
{
struct elf_m68k_got_entry_key key_;
elf_m68k_hash_entry (h)->got_entry_key
= elf_m68k_multi_got (info)->global_symndx++;
- elf_m68k_init_got_entry_key (&key_, h, abfd, symndx);
+ elf_m68k_init_got_entry_key (&key_, h, abfd, symndx, reloc_type);
entry = elf_m68k_get_got_entry (got, &key_, FIND_OR_CREATE, info);
if (entry == NULL)
return NULL;
+ /* Determine entry's type and update got->n_slots counters. */
+ entry->key_.type = elf_m68k_update_got_entry_type (got,
+ entry->key_.type,
+ reloc_type);
+
/* Update refcount. */
++entry->u.s1.refcount;
/* We see this entry for the first time. */
{
if (entry->key_.bfd != NULL)
- ++got->local_n_entries;
+ got->local_n_slots += elf_m68k_reloc_got_n_slots (entry->key_.type);
}
- /* Determine entry's type and update got->rel_*_n_entries counters. */
- entry->u.s1.type = elf_m68k_update_got_entry_type (got, entry->u.s1.type,
- type);
+ BFD_ASSERT (got->n_slots[R_32] >= got->local_n_slots);
- if ((got->rel_8o_n_entries
- > ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT (info))
- || (got->rel_8o_16o_n_entries
- > ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT (info)))
+ if ((got->n_slots[R_8]
+ > ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info))
+ || (got->n_slots[R_16]
+ > ELF_M68K_R_8_16_MAX_N_SLOTS_IN_GOT (info)))
/* This BFD has too many relocation. */
{
- if (got->rel_8o_n_entries
- > ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT (info))
+ if (got->n_slots[R_8] > ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info))
(*_bfd_error_handler) (_("%B: GOT overflow: "
- "Number of R_68K_GOT8O relocations > %d"),
+ "Number of relocations with 8-bit "
+ "offset > %d"),
abfd,
- ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT (info));
+ ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info));
else
(*_bfd_error_handler) (_("%B: GOT overflow: "
- "Number of R_68K_GOT8O and R_68K_GOT16O "
- "relocations > %d"),
+ "Number of relocations with 8- or 16-bit "
+ "offset > %d"),
abfd,
- ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT (info));
+ ELF_M68K_R_8_16_MAX_N_SLOTS_IN_GOT (info));
return NULL;
}
const struct elf_m68k_got_entry *entry1;
struct elf_m68k_can_merge_gots_arg *arg;
const struct elf_m68k_got_entry *entry2;
- int type;
+ enum elf_m68k_reloc_type type;
entry1 = (const struct elf_m68k_got_entry *) *_entry_ptr;
arg = (struct elf_m68k_can_merge_gots_arg *) _arg;
entry2 = elf_m68k_get_got_entry (arg->big, &entry1->key_, SEARCH, NULL);
if (entry2 != NULL)
+ /* We found an existing entry. Check if we should update it. */
{
- type = elf_m68k_update_got_entry_type (arg->diff, entry2->u.s1.type,
- entry1->u.s1.type);
+ type = elf_m68k_update_got_entry_type (arg->diff,
+ entry2->key_.type,
+ entry1->key_.type);
- if (type == entry2->u.s1.type)
+ if (type == entry2->key_.type)
/* ENTRY1 doesn't update data in ENTRY2. Skip it.
To skip creation of difference entry we use the type,
which we won't see in GOT entries for sure. */
- type = R_68K_32;
+ type = R_68K_max;
}
else
+ /* We didn't find the entry. Add entry1 to DIFF. */
{
- BFD_ASSERT (entry1->u.s1.type != R_68K_32);
+ BFD_ASSERT (entry1->key_.type != R_68K_max);
- type = elf_m68k_update_got_entry_type (arg->diff, R_68K_GOT32O,
- entry1->u.s1.type);
+ type = elf_m68k_update_got_entry_type (arg->diff,
+ R_68K_max, entry1->key_.type);
- /* Update local counter. */
if (entry1->key_.bfd != NULL)
- ++arg->diff->local_n_entries;
+ arg->diff->local_n_slots += elf_m68k_reloc_got_n_slots (type);
}
- if (type != R_68K_32)
+ if (type != R_68K_max)
/* Create an entry in DIFF. */
{
struct elf_m68k_got_entry *entry;
return 0;
}
- entry->u.s1.type = type;
+ entry->key_.type = type;
}
return 1;
}
/* Check for overflow. */
- if ((big->rel_8o_n_entries + arg_.diff->rel_8o_n_entries
- > ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT (info))
- || (big->rel_8o_16o_n_entries + arg_.diff->rel_8o_16o_n_entries
- > ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT (info)))
+ if ((big->n_slots[R_8] + arg_.diff->n_slots[R_8]
+ > ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info))
+ || (big->n_slots[R_16] + arg_.diff->n_slots[R_16]
+ > ELF_M68K_R_8_16_MAX_N_SLOTS_IN_GOT (info)))
return FALSE;
return TRUE;
BFD_ASSERT (to->u.s1.refcount == 0);
/* All we need to merge is TYPE. */
- to->u.s1.type = from->u.s1.type;
+ to->key_.type = from->key_.type;
return 1;
}
return FALSE;
/* Merge counters. */
- big->rel_8o_n_entries += diff->rel_8o_n_entries;
- big->rel_8o_16o_n_entries += diff->rel_8o_16o_n_entries;
- big->local_n_entries += diff->local_n_entries;
+ big->n_slots[R_8] += diff->n_slots[R_8];
+ big->n_slots[R_16] += diff->n_slots[R_16];
+ big->n_slots[R_32] += diff->n_slots[R_32];
+ big->local_n_slots += diff->local_n_slots;
}
else
/* DIFF is empty. */
{
- BFD_ASSERT (diff->rel_8o_n_entries == 0);
- BFD_ASSERT (diff->rel_8o_16o_n_entries == 0);
- BFD_ASSERT (diff->local_n_entries == 0);
+ BFD_ASSERT (diff->n_slots[R_8] == 0);
+ BFD_ASSERT (diff->n_slots[R_16] == 0);
+ BFD_ASSERT (diff->n_slots[R_32] == 0);
+ BFD_ASSERT (diff->local_n_slots == 0);
}
BFD_ASSERT (!elf_m68k_hash_table (info)->allow_multigot_p
- || ((big->rel_8o_n_entries
- <= ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT (info))
- && (big->rel_8o_16o_n_entries
- <= ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT (info))));
+ || ((big->n_slots[R_8]
+ <= ELF_M68K_R_8_MAX_N_SLOTS_IN_GOT (info))
+ && (big->n_slots[R_16]
+ <= ELF_M68K_R_8_16_MAX_N_SLOTS_IN_GOT (info))));
return TRUE;
}
struct elf_m68k_finalize_got_offsets_arg
{
- /* Offset for the next R_68K_GOT8O entry. */
- bfd_vma rel_8o_offset;
-
- /* Offset for the next R_68K_GOT16O entry. */
- bfd_vma rel_16o_offset;
-
- /* Offset for the next R_68K_GOT32O entry. */
- bfd_vma rel_32o_offset;
-
- /* Should we use negative (relative to GP) offsets for GOT entries. */
- bfd_boolean use_neg_got_offsets_p;
-
- /* Offset of this GOT relative to .got section. */
- bfd_vma got_offset;
+ /* Ranges of the offsets for GOT entries.
+ R_x entries receive offsets between offset1[R_x] and offset2[R_x].
+ R_x is R_8, R_16 and R_32. */
+ bfd_vma *offset1;
+ bfd_vma *offset2;
/* Mapping from global symndx to global symbols.
This is used to build lists of got entries for global symbols. */
struct elf_m68k_link_hash_entry **symndx2h;
+
+ bfd_vma n_ldm_entries;
};
/* Assign ENTRY an offset. Build list of GOT entries for global symbols
struct elf_m68k_got_entry *entry;
struct elf_m68k_finalize_got_offsets_arg *arg;
+ enum elf_m68k_got_offset_size got_offset_size;
+ bfd_vma entry_size;
+
entry = (struct elf_m68k_got_entry *) *entry_ptr;
arg = (struct elf_m68k_finalize_got_offsets_arg *) _arg;
/* This should be a fresh entry created in elf_m68k_can_merge_gots. */
BFD_ASSERT (entry->u.s1.refcount == 0);
- switch (entry->u.s1.type)
- {
- case R_68K_GOT8O:
- entry->u.s2.offset = arg->rel_8o_offset;
-
- if (arg->use_neg_got_offsets_p)
- {
- if (arg->rel_8o_offset >= arg->got_offset)
- /* We've assigned a positive offset to this entry,
- next entry should get (-abs(offset) - 4). */
- arg->rel_8o_offset = (arg->got_offset
- - (arg->rel_8o_offset - arg->got_offset)
- - 4);
- else
- /* We've assigned a negative offset to this entry,
- next entry should get (+abs(offset) + 0). */
- arg->rel_8o_offset = (arg->got_offset
- + (arg->got_offset - arg->rel_8o_offset));
- }
- else
- /* Next entry will simply get next offset. */
- arg->rel_8o_offset += 4;
+ /* Get GOT offset size for the entry . */
+ got_offset_size = elf_m68k_reloc_got_offset_size (entry->key_.type);
- break;
-
- case R_68K_GOT16O:
- entry->u.s2.offset = arg->rel_16o_offset;
+ /* Calculate entry size in bytes. */
+ entry_size = 4 * elf_m68k_reloc_got_n_slots (entry->key_.type);
- if (arg->use_neg_got_offsets_p)
- {
- if (arg->rel_16o_offset >= arg->got_offset)
- /* We've assigned a positive offset to this entry,
- next entry should get (-abs(offset) - 4). */
- arg->rel_16o_offset = (arg->got_offset
- - (arg->rel_16o_offset - arg->got_offset)
- - 4);
- else
- /* We've assigned a negative offset to this entry,
- next entry should get (+abs(offset) + 0). */
- arg->rel_16o_offset = (arg->got_offset
- + (arg->got_offset - arg->rel_16o_offset));
- }
- else
- /* Next entry will simply get next offset. */
- arg->rel_16o_offset += 4;
-
- break;
-
- case R_68K_GOT32O:
- entry->u.s2.offset = arg->rel_32o_offset;
-
- if (arg->use_neg_got_offsets_p)
- {
- if (arg->rel_32o_offset >= arg->got_offset)
- /* We've assigned a positive offset to this entry,
- next entry should get (-abs(offset) - 4). */
- arg->rel_32o_offset = (arg->got_offset
- - (arg->rel_32o_offset - arg->got_offset)
- - 4);
- else
- /* We've assigned a negative offset to this entry,
- next entry should get (+abs(offset) + 0). */
- arg->rel_32o_offset = (arg->got_offset
- + (arg->got_offset - arg->rel_32o_offset));
- }
- else
- /* Next entry will simply get next offset. */
- arg->rel_32o_offset += 4;
-
- break;
-
- default:
- BFD_ASSERT (FALSE);
- break;
+ /* Check if we should switch to negative range of the offsets. */
+ if (arg->offset1[got_offset_size] + entry_size
+ > arg->offset2[got_offset_size])
+ {
+ /* Verify that this is the only switch to negative range for
+ got_offset_size. If this assertion fails, then we've miscalculated
+ range for got_offset_size entries in
+ elf_m68k_finalize_got_offsets. */
+ BFD_ASSERT (arg->offset2[got_offset_size]
+ != arg->offset2[-(int) got_offset_size - 1]);
+
+ /* Switch. */
+ arg->offset1[got_offset_size] = arg->offset1[-(int) got_offset_size - 1];
+ arg->offset2[got_offset_size] = arg->offset2[-(int) got_offset_size - 1];
+
+ /* Verify that now we have enough room for the entry. */
+ BFD_ASSERT (arg->offset1[got_offset_size] + entry_size
+ <= arg->offset2[got_offset_size]);
}
+ /* Assign offset to entry. */
+ entry->u.s2.offset = arg->offset1[got_offset_size];
+ arg->offset1[got_offset_size] += entry_size;
+
if (entry->key_.bfd == NULL)
/* Hook up this entry into the list of got_entries of H. */
{
struct elf_m68k_link_hash_entry *h;
- BFD_ASSERT (entry->key_.symndx != 0);
h = arg->symndx2h[entry->key_.symndx];
- BFD_ASSERT (h != NULL);
+ if (h != NULL)
+ {
+ entry->u.s2.next = h->glist;
+ h->glist = entry;
+ }
+ else
+ /* This should be the entry for TLS_LDM relocation then. */
+ {
+ BFD_ASSERT ((elf_m68k_reloc_got_type (entry->key_.type)
+ == R_68K_TLS_LDM32)
+ && entry->key_.symndx == 0);
- entry->u.s2.next = h->glist;
- h->glist = entry;
+ ++arg->n_ldm_entries;
+ }
}
else
/* This entry is for local symbol. */
should use negative offsets.
Build list of GOT entries for global symbols along the way.
SYMNDX2H is mapping from global symbol indices to actual
- global symbols. */
+ global symbols.
+ Return offset at which next GOT should start. */
static void
elf_m68k_finalize_got_offsets (struct elf_m68k_got *got,
bfd_boolean use_neg_got_offsets_p,
- struct elf_m68k_link_hash_entry **symndx2h)
+ struct elf_m68k_link_hash_entry **symndx2h,
+ bfd_vma *final_offset, bfd_vma *n_ldm_entries)
{
struct elf_m68k_finalize_got_offsets_arg arg_;
+ bfd_vma offset1_[2 * R_LAST];
+ bfd_vma offset2_[2 * R_LAST];
+ int i;
+ bfd_vma start_offset;
BFD_ASSERT (got->offset != (bfd_vma) -1);
/* We set entry offsets relative to the .got section (and not the
start of a particular GOT), so that we can use them in
- finish_dynamic_symbol without needing to know the GOT they come
+ finish_dynamic_symbol without needing to know the GOT which they come
from. */
+ /* Put offset1 in the middle of offset1_, same for offset2. */
+ arg_.offset1 = offset1_ + R_LAST;
+ arg_.offset2 = offset2_ + R_LAST;
+
+ start_offset = got->offset;
+
if (use_neg_got_offsets_p)
+ /* Setup both negative and positive ranges for R_8, R_16 and R_32. */
+ i = -(int) R_32 - 1;
+ else
+ /* Setup positives ranges for R_8, R_16 and R_32. */
+ i = (int) R_8;
+
+ for (; i <= (int) R_32; ++i)
{
+ int j;
size_t n;
- /* Put GOT pointer in the middle of GOT. */
- n = htab_elements (got->entries);
- if ((n & 1) == 0)
- /* Even number of GOT entries. */
- got->offset += 2 * n;
- else
- /* Odd number of GOT entries. */
- got->offset += 2 * (n - 1);
-
- /* R_68K_GOT8O entries shall start at GOT offset. */
- arg_.rel_8o_offset = got->offset;
-
- n = got->rel_8o_n_entries;
- if ((n & 1) == 0)
- /* Even number of R_68K_GOT8O entries.
- The last R_68K_GOT8O entry will be at
- (got->offset - 2 * n). Hence the first R_68K_GOT16O
- entry will be at offset ... */
- arg_.rel_16o_offset = got->offset + 2 * n;
- else
- /* Odd number of R_68K_GOT8O entries.
- The last R_68K_GOT8O entry will be at
- (got->offset + 2 * (n - 1)). Hence the first R_68K_GOT16O
- entry will be at offset ... */
- arg_.rel_16o_offset = got->offset - 2 * (n - 1) - 4;
-
- n = got->rel_8o_16o_n_entries;
- if ((n & 1) == 0)
- /* Even number of R_68K_GOT8O and R_68K_GOT16O entries.
- The last R_68K_GOT8O entry will be at
- (got->offset - 2 * n). Hence the first R_68K_GOT32O
- entry will be at offset ... */
- arg_.rel_32o_offset = got->offset + 2 * n;
- else
- /* Odd number of R_68K_GOT8O and R_68K_GOT16O entries.
- The last R_68K_GOT16O entry will be at
- (got->offset + 2 * (n - 1)). Hence the first R_68K_GOT32O
- entry will be at offset ... */
- arg_.rel_32o_offset = got->offset - 2 * (n - 1) - 4;
+ /* Set beginning of the range of offsets I. */
+ arg_.offset1[i] = start_offset;
- arg_.use_neg_got_offsets_p = TRUE;
+ /* Calculate number of slots that require I offsets. */
+ j = (i >= 0) ? i : -i - 1;
+ n = (j >= 1) ? got->n_slots[j - 1] : 0;
+ n = got->n_slots[j] - n;
- arg_.got_offset = got->offset;
- }
- else
- {
- arg_.rel_8o_offset = got->offset;
- arg_.rel_16o_offset = 4 * got->rel_8o_n_entries + got->offset;
- arg_.rel_32o_offset = 4 * got->rel_8o_16o_n_entries + got->offset;
+ if (use_neg_got_offsets_p && n != 0)
+ {
+ if (i < 0)
+ /* We first fill the positive side of the range, so we might
+ end up with one empty slot at that side when we can't fit
+ whole 2-slot entry. Account for that at negative side of
+ the interval with one additional entry. */
+ n = n / 2 + 1;
+ else
+ /* When the number of slots is odd, make positive side of the
+ range one entry bigger. */
+ n = (n + 1) / 2;
+ }
- arg_.use_neg_got_offsets_p = FALSE;
+ /* N is the number of slots that require I offsets.
+ Calculate length of the range for I offsets. */
+ n = 4 * n;
- /* This shouldn't be used. */
- arg_.got_offset = (bfd_vma) -1;
+ /* Set end of the range. */
+ arg_.offset2[i] = start_offset + n;
+
+ start_offset = arg_.offset2[i];
}
- arg_.symndx2h = symndx2h;
+ if (!use_neg_got_offsets_p)
+ /* Make sure that if we try to switch to negative offsets in
+ elf_m68k_finalize_got_offsets_1, the assert therein will catch
+ the bug. */
+ for (i = R_8; i <= R_32; ++i)
+ arg_.offset2[-i - 1] = arg_.offset2[i];
- htab_traverse (got->entries, elf_m68k_finalize_got_offsets_1, &arg_);
+ /* Setup got->offset. offset1[R_8] is either in the middle or at the
+ beginning of GOT depending on use_neg_got_offsets_p. */
+ got->offset = arg_.offset1[R_8];
- /* Calculate offset ranges we have actually assigned. */
- if (use_neg_got_offsets_p)
- {
- if (arg_.rel_8o_offset == (bfd_vma) -4
- || arg_.rel_8o_offset < got->offset)
- arg_.rel_8o_offset = 2 * (got->offset - arg_.rel_8o_offset) - 4;
- else
- arg_.rel_8o_offset = 2 * (arg_.rel_8o_offset - got->offset);
+ arg_.symndx2h = symndx2h;
+ arg_.n_ldm_entries = 0;
- if (arg_.rel_16o_offset == (bfd_vma) -4
- || arg_.rel_16o_offset < got->offset)
- arg_.rel_16o_offset = 2 * (got->offset - arg_.rel_16o_offset) - 4;
- else
- arg_.rel_16o_offset = 2 * (arg_.rel_16o_offset - got->offset);
+ /* Assign offsets. */
+ htab_traverse (got->entries, elf_m68k_finalize_got_offsets_1, &arg_);
- if (arg_.rel_32o_offset == (bfd_vma) -4
- || arg_.rel_32o_offset < got->offset)
- arg_.rel_32o_offset = 2 * (got->offset - arg_.rel_32o_offset) - 4;
- else
- arg_.rel_32o_offset = 2 * (arg_.rel_32o_offset - got->offset);
- }
- else
- {
- arg_.rel_8o_offset -= got->offset;
- arg_.rel_16o_offset -= got->offset;
- arg_.rel_32o_offset -= got->offset;
- }
+ /* Check offset ranges we have actually assigned. */
+ for (i = (int) R_8; i <= (int) R_32; ++i)
+ BFD_ASSERT (arg_.offset2[i] - arg_.offset1[i] <= 4);
- /* These asserts check that we got counting of entries right. */
- BFD_ASSERT (arg_.rel_8o_offset == 4 * got->rel_8o_n_entries);
- BFD_ASSERT (arg_.rel_16o_offset == 4 * got->rel_8o_16o_n_entries);
- BFD_ASSERT (arg_.rel_32o_offset == 4 * htab_elements (got->entries));
+ *final_offset = start_offset;
+ *n_ldm_entries = arg_.n_ldm_entries;
}
struct elf_m68k_partition_multi_got_arg
/* Context where memory should be allocated. */
struct bfd_link_info *info;
- /* Total number of entries in the .got section.
+ /* Total number of slots in the .got section.
This is used to calculate size of the .got and .rela.got sections. */
- bfd_vma n_entries;
+ bfd_vma n_slots;
- /* Total number of local entries in the .got section.
+ /* Difference in numbers of allocated slots in the .got section
+ and necessary relocations in the .rela.got section.
This is used to calculate size of the .rela.got section. */
- bfd_vma local_n_entries;
+ bfd_vma slots_relas_diff;
/* Error flag. */
bfd_boolean error_p;
struct elf_m68k_link_hash_entry **symndx2h;
};
+static void
+elf_m68k_partition_multi_got_2 (struct elf_m68k_partition_multi_got_arg *arg)
+{
+ bfd_vma n_ldm_entries;
+
+ elf_m68k_finalize_got_offsets (arg->current_got,
+ (elf_m68k_hash_table (arg->info)
+ ->use_neg_got_offsets_p),
+ arg->symndx2h,
+ &arg->offset, &n_ldm_entries);
+
+ arg->n_slots += arg->current_got->n_slots[R_32];
+
+ if (!arg->info->shared)
+ /* 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
+ don't need space in .rela.got for local symbols. */
+ arg->slots_relas_diff += arg->current_got->local_n_slots;
+
+ /* @LDM relocations require a 2-slot GOT entry, but only
+ one relocation. Account for that. */
+ arg->slots_relas_diff += n_ldm_entries;
+
+ BFD_ASSERT (arg->slots_relas_diff <= arg->n_slots);
+}
+
+
/* Process a single BFD2GOT entry and either merge GOT to CURRENT_GOT
or start a new CURRENT_GOT. */
struct elf_m68k_bfd2got_entry *entry;
struct elf_m68k_partition_multi_got_arg *arg;
struct elf_m68k_got *got;
- struct elf_m68k_got *current_got;
struct elf_m68k_got diff_;
struct elf_m68k_got *diff;
/* Construct diff. */
{
diff = &diff_;
- elf_m68k_init_got (diff, NULL, 0, 0, 0, (bfd_vma) -1);
+ elf_m68k_init_got (diff);
if (!elf_m68k_can_merge_gots (arg->current_got, got, arg->info, diff))
{
if (elf_m68k_hash_table (arg->info)->allow_multigot_p)
{
elf_m68k_clear_got (diff);
- /* Schedule to finish up CURRENT_GOT and start new one. */
+ /* Schedule to finish up current_got and start new one. */
diff = NULL;
}
/* else
else
/* Diff of got against empty current_got is got itself. */
{
- /* Create empty CURRENT_GOT to subsequent GOTs to. */
+ /* Create empty current_got to put subsequent GOTs to. */
arg->current_got = elf_m68k_create_empty_got (arg->info);
if (arg->current_got == NULL)
{
diff = got;
}
- current_got = arg->current_got;
-
if (diff != NULL)
{
- if (!elf_m68k_merge_gots (current_got, diff, arg->info))
+ if (!elf_m68k_merge_gots (arg->current_got, diff, arg->info))
{
arg->error_p = TRUE;
goto final_return;
/* Now we can free GOT. */
elf_m68k_clear_got (got);
- entry->got = current_got;
+ entry->got = arg->current_got;
}
else
{
- /* Schedule to start a new current_got. */
- arg->current_got = NULL;
- arg->offset = (current_got->offset
- + 4 * htab_elements (current_got->entries));
-
/* Finish up current_got. */
- {
- elf_m68k_finalize_got_offsets (current_got,
- elf_m68k_hash_table (arg->info)
- ->use_neg_got_offsets_p,
- arg->symndx2h);
+ elf_m68k_partition_multi_got_2 (arg);
- arg->n_entries += htab_elements (current_got->entries);
- arg->local_n_entries += current_got->local_n_entries;
-
- BFD_ASSERT (arg->local_n_entries <= arg->n_entries);
- }
+ /* Schedule to start a new current_got. */
+ arg->current_got = NULL;
/* Retry. */
if (!elf_m68k_partition_multi_got_1 (_entry, _arg))
arg_.current_got = NULL;
arg_.offset = 0;
arg_.info = info;
- arg_.n_entries = 0;
- arg_.local_n_entries = 0;
+ arg_.n_slots = 0;
+ arg_.slots_relas_diff = 0;
arg_.error_p = FALSE;
if (multi_got->bfd2got != NULL)
}
/* Finish up last current_got. */
- {
- elf_m68k_finalize_got_offsets (arg_.current_got,
- elf_m68k_hash_table (info)
- ->use_neg_got_offsets_p, arg_.symndx2h);
-
- arg_.n_entries += htab_elements (arg_.current_got->entries);
- arg_.local_n_entries += arg_.current_got->local_n_entries;
-
- BFD_ASSERT (arg_.local_n_entries <= arg_.n_entries);
- }
+ elf_m68k_partition_multi_got_2 (&arg_);
free (arg_.symndx2h);
}
s = bfd_get_section_by_name (elf_hash_table (info)->dynobj, ".got");
if (s != NULL)
- s->size = arg_.n_entries * 4;
+ s->size = arg_.offset;
else
- BFD_ASSERT (arg_.n_entries == 0);
+ BFD_ASSERT (arg_.offset == 0);
- /* 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
- don't need space in .rela.got for local symbols. */
- if (!info->shared)
- {
- BFD_ASSERT (arg_.local_n_entries <= arg_.n_entries);
- arg_.n_entries -= arg_.local_n_entries;
- }
+ BFD_ASSERT (arg_.slots_relas_diff <= arg_.n_slots);
+ arg_.n_slots -= arg_.slots_relas_diff;
s = bfd_get_section_by_name (elf_hash_table (info)->dynobj, ".rela.got");
if (s != NULL)
- s->size = arg_.n_entries * sizeof (Elf32_External_Rela);
+ s->size = arg_.n_slots * sizeof (Elf32_External_Rela);
else
- BFD_ASSERT (arg_.n_entries == 0);
+ BFD_ASSERT (arg_.n_slots == 0);
}
else
BFD_ASSERT (multi_got->bfd2got == NULL);
/* Check that this entry is indeed unused. */
BFD_ASSERT (entry->u.s1.refcount == 0);
- elf_m68k_remove_got_entry_type (got, entry->u.s1.type);
+ elf_m68k_remove_got_entry_type (got, entry->key_.type);
if (entry->key_.bfd != NULL)
- --got->local_n_entries;
+ got->local_n_slots -= elf_m68k_reloc_got_n_slots (entry->key_.type);
+
+ BFD_ASSERT (got->n_slots[R_32] >= got->local_n_slots);
htab_clear_slot (got->entries, (void **) entry_ptr);
}
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
break;
/* Fall through. */
+
+ /* Relative GOT relocations. */
case R_68K_GOT8O:
case R_68K_GOT16O:
case R_68K_GOT32O:
+ /* Fall through. */
+
+ /* TLS relocations. */
+ case R_68K_TLS_GD8:
+ case R_68K_TLS_GD16:
+ case R_68K_TLS_GD32:
+ case R_68K_TLS_LDM8:
+ case R_68K_TLS_LDM16:
+ case R_68K_TLS_LDM32:
+ case R_68K_TLS_IE8:
+ case R_68K_TLS_IE16:
+ case R_68K_TLS_IE32:
+
/* This symbol requires a global offset table entry. */
if (dynobj == NULL)
if (!bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
}
-
- /* Allocate space in the .got section. */
- sgot->size += 4;
-
- /* Allocate relocation space. */
- if (h != NULL
- || info->shared)
- srelgot->size += sizeof (Elf32_External_Rela);
}
}
case R_68K_GOT8O:
case R_68K_GOT16O:
case R_68K_GOT32O:
+ /* Fall through. */
+
+ /* TLS relocations. */
+ case R_68K_TLS_GD8:
+ case R_68K_TLS_GD16:
+ case R_68K_TLS_GD32:
+ case R_68K_TLS_LDM8:
+ case R_68K_TLS_LDM16:
+ case R_68K_TLS_LDM32:
+ case R_68K_TLS_IE8:
+ case R_68K_TLS_IE16:
+ case R_68K_TLS_IE32:
+
if (got == NULL)
{
got = elf_m68k_get_bfd2got_entry (elf_m68k_multi_got (info),
struct elf_m68k_got_entry **got_entry_ptr;
struct elf_m68k_got_entry *got_entry;
- elf_m68k_init_got_entry_key (&key_, h, abfd, r_symndx);
+ elf_m68k_init_got_entry_key (&key_, h, abfd, r_symndx,
+ ELF32_R_TYPE (rel->r_info));
got_entry_ptr = elf_m68k_find_got_entry_ptr (got, &key_);
got_entry = *got_entry_ptr;
return TRUE;
}
+
+/* Install relocation RELA. */
+
+static void
+elf_m68k_install_rela (bfd *output_bfd,
+ asection *srela,
+ Elf_Internal_Rela *rela)
+{
+ bfd_byte *loc;
+
+ loc = srela->contents;
+ loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
+}
+
+/* Return the base VMA address which should be subtracted from real addresses
+ when resolving @dtpoff relocation.
+ This is PT_TLS segment p_vaddr. */
+
+static bfd_vma
+dtpoff_base (struct bfd_link_info *info)
+{
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_sec == NULL)
+ return 0;
+ return elf_hash_table (info)->tls_sec->vma;
+}
+
+/* Return the relocation value for @tpoff relocation
+ if STT_TLS virtual address is ADDRESS. */
+
+static bfd_vma
+tpoff (struct bfd_link_info *info, bfd_vma address)
+{
+ struct elf_link_hash_table *htab = elf_hash_table (info);
+ bfd_vma base;
+
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (htab->tls_sec == NULL)
+ return 0;
+ base = align_power ((bfd_vma) 8, htab->tls_sec->alignment_power);
+ return address - htab->tls_sec->vma + base;
+}
+
/* Relocate an M68K ELF section. */
static bfd_boolean
case R_68K_GOT8O:
case R_68K_GOT16O:
case R_68K_GOT32O:
+
+ case R_68K_TLS_LDM32:
+ case R_68K_TLS_LDM16:
+ case R_68K_TLS_LDM8:
+
+ case R_68K_TLS_GD8:
+ case R_68K_TLS_GD16:
+ case R_68K_TLS_GD32:
+
+ case R_68K_TLS_IE8:
+ case R_68K_TLS_IE16:
+ case R_68K_TLS_IE32:
+
/* Relocation is the offset of the entry for this symbol in
the global offset table. */
}
/* Get GOT offset for this symbol. */
- elf_m68k_init_got_entry_key (&key_, h, input_bfd, r_symndx);
+ elf_m68k_init_got_entry_key (&key_, h, input_bfd, r_symndx,
+ r_type);
off_ptr = &elf_m68k_get_got_entry (got, &key_, MUST_FIND,
NULL)->u.s2.offset;
off = *off_ptr;
- if (h != NULL)
+ /* The offset must always be a multiple of 4. We use
+ the least significant bit to record whether we have
+ already generated the necessary reloc. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
{
- bfd_boolean dyn;
-
- 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))
- || (ELF_ST_VISIBILITY (h->other)
- && h->root.type == bfd_link_hash_undefweak))
+ if (h != NULL
+ /* @TLSLDM relocations are bounded to the module, in
+ which the symbol is defined -- not to the symbol
+ itself. */
+ && elf_m68k_reloc_got_type (r_type) != R_68K_TLS_LDM32)
{
- /* This is actually a static link, or it is a
- -Bsymbolic link and the symbol is defined
- locally, or 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_boolean dyn;
+
+ 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))
+ || (ELF_ST_VISIBILITY (h->other)
+ && h->root.type == bfd_link_hash_undefweak))
{
- bfd_put_32 (output_bfd, relocation,
- sgot->contents + off);
+ /* This is actually a static link, or it is a
+ -Bsymbolic link and the symbol is defined
+ locally, or 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 (elf_m68k_reloc_got_type (r_type) == R_68K_GOT32O)
+ bfd_put_32 (output_bfd, relocation,
+ sgot->contents + off);
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_GD32)
+ /* Mark it as belonging to module 1,
+ the executable. */
+ {
+ bfd_put_32 (output_bfd, 1,
+ sgot->contents + off);
+ bfd_put_32 (output_bfd, (relocation
+ - dtpoff_base (info)),
+ sgot->contents + off + 4);
+ }
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_IE32)
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ sgot->contents + off);
+ else
+ BFD_ASSERT (FALSE);
+
*off_ptr |= 1;
}
+ else
+ unresolved_reloc = FALSE;
}
- else
- unresolved_reloc = FALSE;
- }
- else
- {
- /* The offset must always be a multiple of 4. We use
- the least significant bit to record whether we have
- already generated the necessary reloc. */
- if ((off & 1) != 0)
- off &= ~1;
- else
+ else if (info->shared) /* && h == NULL */
{
- bfd_put_32 (output_bfd, relocation, sgot->contents + off);
+ asection *srela;
+ Elf_Internal_Rela outrel;
+
+ srela = bfd_get_section_by_name (dynobj, ".rela.got");
+ BFD_ASSERT (srela != NULL);
- if (info->shared)
+ if (elf_m68k_reloc_got_type (r_type) == R_68K_GOT32O)
{
- asection *s;
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
+ /* Emit RELATIVE relocation to initialize GOT slot
+ at run-time. */
+ outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
+ outrel.r_addend = relocation;
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + off);
- s = bfd_get_section_by_name (dynobj, ".rela.got");
- BFD_ASSERT (s != NULL);
+ elf_m68k_install_rela (output_bfd, srela, &outrel);
+ }
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_LDM32)
+ {
+ /* If we don't know the module number, create
+ a relocation for it. */
+ outrel.r_info = ELF32_R_INFO (0, R_68K_TLS_DTPMOD32);
+ outrel.r_addend = 0;
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + off);
+ elf_m68k_install_rela (output_bfd, srela, &outrel);
+ }
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_GD32)
+ {
+ /* If we don't know the module number, create
+ a relocation for it. */
+ outrel.r_info = ELF32_R_INFO (0, R_68K_TLS_DTPMOD32);
+ outrel.r_addend = 0;
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ off);
- outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
- outrel.r_addend = relocation;
- loc = s->contents;
- loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+
+ elf_m68k_install_rela (output_bfd, srela, &outrel);
+
+ bfd_put_32 (output_bfd, (relocation
+ - dtpoff_base (info)),
+ sgot->contents + off + 4);
+ }
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_IE32)
+ {
+ outrel.r_info = ELF32_R_INFO (0, R_68K_TLS_TPREL32);
+ outrel.r_addend = relocation - dtpoff_base (info);
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + off);
+
+ elf_m68k_install_rela (output_bfd, srela, &outrel);
}
+ else
+ BFD_ASSERT (FALSE);
+
+ bfd_put_32 (output_bfd, outrel.r_addend,
+ sgot->contents + off);
+
+ *off_ptr |= 1;
+ }
+ else /* h == NULL && !info->shared */
+ {
+ if (elf_m68k_reloc_got_type (r_type) == R_68K_GOT32O)
+ bfd_put_32 (output_bfd, relocation,
+ sgot->contents + off);
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_LDM32)
+ /* If this is a static link, put the number of the
+ only module in the GOT slot. */
+ bfd_put_32 (output_bfd, 1, sgot->contents + off);
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_GD32)
+ {
+ /* If we are not emitting relocations for a
+ general dynamic reference, then we must be in a
+ static link or an executable link with the
+ symbol binding locally. Mark it as belonging
+ to module 1, the executable. */
+ bfd_put_32 (output_bfd, 1, sgot->contents + off);
+ bfd_put_32 (output_bfd, (relocation
+ - dtpoff_base (info)),
+ sgot->contents + off + 4);
+ }
+ else if (elf_m68k_reloc_got_type (r_type)
+ == R_68K_TLS_IE32)
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ sgot->contents + off);
+ else
+ BFD_ASSERT (FALSE);
*off_ptr |= 1;
}
}
- if (r_type == R_68K_GOT8O
+ /* We don't use elf_m68k_reloc_got_type in the condition below
+ because this is the only place where difference between
+ R_68K_GOTx and R_68K_GOTxO relocations matters. */
+ if (r_type == R_68K_GOT32O
|| r_type == R_68K_GOT16O
- || r_type == R_68K_GOT32O)
+ || r_type == R_68K_GOT8O
+ || elf_m68k_reloc_got_type (r_type) == R_68K_TLS_GD32
+ || elf_m68k_reloc_got_type (r_type) == R_68K_TLS_LDM32
+ || elf_m68k_reloc_got_type (r_type) == R_68K_TLS_IE32)
{
/* GOT pointer is adjusted to point to the start/middle
of local GOT. Adjust the offset accordingly. */
}
break;
+ case R_68K_TLS_LDO32:
+ case R_68K_TLS_LDO16:
+ case R_68K_TLS_LDO8:
+ relocation -= dtpoff_base (info);
+ break;
+
+ case R_68K_TLS_LE32:
+ case R_68K_TLS_LE16:
+ case R_68K_TLS_LE8:
+ if (info->shared)
+ {
+ (*_bfd_error_handler)
+ (_("%B(%A+0x%lx): R_68K_TLS_LE32 relocation not permitted "
+ "in shared object"),
+ input_bfd, input_section, (long) rel->r_offset, howto->name);
+
+ return FALSE;
+ }
+ else
+ relocation = tpoff (info, relocation);
+
+ break;
+
case R_68K_PLT8:
case R_68K_PLT16:
case R_68K_PLT32:
return FALSE;
}
+ if (r_symndx != 0
+ && r_type != R_68K_NONE
+ && (h == NULL
+ || h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
+ {
+ char sym_type;
+
+ sym_type = (sym != NULL) ? ELF32_ST_TYPE (sym->st_info) : h->type;
+
+ if (elf_m68k_reloc_tls_p (r_type) != (sym_type == STT_TLS))
+ {
+ const char *name;
+
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+ 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);
+ }
+
+ (*_bfd_error_handler)
+ ((sym_type == STT_TLS
+ ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
+ : _("%B(%A+0x%lx): %s used with non-TLS symbol %s")),
+ input_bfd,
+ input_section,
+ (long) rel->r_offset,
+ howto->name,
+ name);
+ }
+ }
+
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
relocation, rel->r_addend);
while (got_entry != NULL)
{
Elf_Internal_Rela rela;
- bfd_byte *loc;
+ bfd_vma got_entry_offset;
+
+ got_entry_offset = got_entry->u.s2.offset &~ (bfd_vma) 1;
rela.r_offset = (sgot->output_section->vma
+ sgot->output_offset
- + (got_entry->u.s2.offset &~ (bfd_vma) 1));
+ + got_entry_offset);
/* If this is a -Bsymbolic link, and the symbol is defined
locally, we just want to emit a RELATIVE reloc. Likewise if
the symbol was forced to be local because of a version file.
- The entry in the global offset table will already have been
+ The entry in the global offset table already have been
initialized in the relocate_section function. */
if (info->shared
&& SYMBOL_REFERENCES_LOCAL (info, h))
{
- rela.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
rela.r_addend = bfd_get_signed_32 (output_bfd,
(sgot->contents
- + (got_entry->u.s2.offset
- &~ (bfd_vma) 1)));
+ + got_entry_offset));
+
+ switch (elf_m68k_reloc_got_type (got_entry->key_.type))
+ {
+ case R_68K_GOT32O:
+ rela.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
+ break;
+
+ case R_68K_TLS_GD32:
+ rela.r_info = ELF32_R_INFO (0, R_68K_TLS_DTPMOD32);
+ break;
+
+ case R_68K_TLS_IE32:
+ rela.r_info = ELF32_R_INFO (0, R_68K_TLS_TPREL32);
+ break;
+
+ default:
+ BFD_ASSERT (FALSE);
+ break;
+ }
+
+ elf_m68k_install_rela (output_bfd, srela, &rela);
}
else
{
- bfd_put_32 (output_bfd, (bfd_vma) 0,
- sgot->contents + (got_entry->u.s2.offset
- &~ (bfd_vma) 1));
- rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_GLOB_DAT);
+ /* Put zeros to GOT slots that will be initialized
+ at run-time. */
+ {
+ bfd_vma n_slots;
+
+ n_slots = elf_m68k_reloc_got_n_slots (got_entry->key_.type);
+ while (n_slots--)
+ bfd_put_32 (output_bfd, (bfd_vma) 0,
+ (sgot->contents + got_entry_offset
+ + 4 * n_slots));
+ }
+
rela.r_addend = 0;
- }
- loc = srela->contents;
- loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
+ switch (elf_m68k_reloc_got_type (got_entry->key_.type))
+ {
+ case R_68K_GOT32O:
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_GLOB_DAT);
+ elf_m68k_install_rela (output_bfd, srela, &rela);
+ break;
+
+ case R_68K_TLS_GD32:
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_TLS_DTPMOD32);
+ elf_m68k_install_rela (output_bfd, srela, &rela);
+
+ rela.r_offset += 4;
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_TLS_DTPREL32);
+ elf_m68k_install_rela (output_bfd, srela, &rela);
+ break;
+
+ case R_68K_TLS_IE32:
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_TLS_TPREL32);
+ elf_m68k_install_rela (output_bfd, srela, &rela);
+ break;
+
+ default:
+ BFD_ASSERT (FALSE);
+ break;
+ }
+ }
got_entry = got_entry->u.s2.next;
}
OSDN Git Service
