/* MIPS-specific support for 64-bit ELF
- Copyright 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
Ian Lance Taylor, Cygnus Support
Linker support added by Mark Mitchell, CodeSourcery, LLC.
The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
overrides the usual ELF reloc handling, and handles reading and
- writing the relocations here.
-
- The MIPS 64-bit ELF ABI also uses an unusual archive map format. */
+ writing the relocations here. */
+
+/* TODO: Many things are unsupported, even if there is some code for it
+ . (which was mostly stolen from elf32-mips.c and slightly adapted).
+ .
+ . - Relocation handling for REL relocs is wrong in many cases and
+ . generally untested.
+ . - Relocation handling for RELA relocs related to GOT support are
+ . also likely to be wrong.
+ . - Support for MIPS16 is only partially implemented.
+ . - Embedded PIC is only partially implemented (is it needed?).
+ . - Combined relocs with RSS_* entries are unsupported.
+ . - The whole GOT handling for NewABI is missing, some parts of
+ . the OldABI version is still lying around and shold be removed.
+ */
#include "bfd.h"
#include "sysdep.h"
#define ECOFF_SIGNED_64
#include "ecoffswap.h"
+struct mips_elf64_link_hash_entry;
+
static void mips_elf64_swap_reloc_in
PARAMS ((bfd *, const Elf64_Mips_External_Rel *,
Elf64_Mips_Internal_Rel *));
PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rela *));
static void mips_elf64_be_swap_reloca_out
PARAMS ((bfd *, const Elf_Internal_Rela *, bfd_byte *));
+static bfd_vma mips_elf64_high PARAMS ((bfd_vma));
+static bfd_vma mips_elf64_higher PARAMS ((bfd_vma));
+static bfd_vma mips_elf64_highest PARAMS ((bfd_vma));
static reloc_howto_type *mips_elf64_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
+static void mips_elf64_info_to_howto_rel
+ PARAMS ((bfd *, arelent *, Elf64_Internal_Rel *));
+static void mips_elf64_info_to_howto_rela
+ PARAMS ((bfd *, arelent *, Elf64_Internal_Rela *));
static long mips_elf64_get_reloc_upper_bound PARAMS ((bfd *, asection *));
static boolean mips_elf64_slurp_one_reloc_table
PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *));
static boolean mips_elf64_slurp_reloc_table
PARAMS ((bfd *, asection *, asymbol **, boolean));
static void mips_elf64_write_relocs PARAMS ((bfd *, asection *, PTR));
-static boolean mips_elf64_slurp_armap PARAMS ((bfd *));
-static boolean mips_elf64_write_armap
- PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
+static void mips_elf64_write_rel
+ PARAMS((bfd *, asection *, Elf_Internal_Shdr *, int *, PTR));
+static void mips_elf64_write_rela
+ PARAMS((bfd *, asection *, Elf_Internal_Shdr *, int *, PTR));
+static struct bfd_hash_entry *mips_elf64_link_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+static bfd_reloc_status_type mips_elf64_hi16_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_higher_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_highest_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_gprel16_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_gprel16_reloca
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_literal_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_gprel32_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_shift6_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type mips_elf64_got16_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static boolean mips_elf64_assign_gp PARAMS ((bfd *, bfd_vma *));
+static bfd_reloc_status_type mips_elf64_final_gp
+ PARAMS ((bfd *, asymbol *, boolean, char **, bfd_vma *));
+static bfd_reloc_status_type gprel16_with_gp
+ PARAMS ((bfd *, asymbol *, arelent *, asection *, boolean, PTR, bfd_vma));
+static int mips_elf64_additional_program_headers PARAMS ((bfd *));
+static struct bfd_link_hash_table *mips_elf64_link_hash_table_create
+ PARAMS((bfd *));
+static bfd_vma mips_elf64_got_offset_from_index
+ PARAMS ((bfd *, bfd *, bfd_vma));
+static struct mips_elf64_got_info *_mips_elf64_got_info
+ PARAMS ((bfd *, asection **));
+static bfd_vma mips_elf64_sign_extend PARAMS ((bfd_vma, int));
+static boolean mips_elf64_overflow_p PARAMS ((bfd_vma, int));
+static bfd_vma mips_elf64_global_got_index
+ PARAMS ((bfd *, struct elf_link_hash_entry *));
+static boolean mips_elf64_sort_hash_table_f
+ PARAMS ((struct mips_elf64_link_hash_entry *, PTR));
+static boolean mips_elf64_sort_hash_table
+ PARAMS ((struct bfd_link_info *, unsigned long));
+static void mips_elf64_swap_msym_out
+ PARAMS ((bfd *, const Elf32_Internal_Msym *, Elf32_External_Msym *));
+static bfd_vma mips_elf64_create_local_got_entry
+ PARAMS ((bfd *abfd, struct mips_elf64_got_info *, asection *,
+ bfd_vma value));
+static bfd_vma mips_elf64_local_got_index
+ PARAMS ((bfd *, struct bfd_link_info *, bfd_vma));
+static bfd_vma mips_elf64_got_page
+ PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, bfd_vma *));
+static bfd_vma mips_elf64_got16_entry
+ PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, boolean));
+static boolean mips_elf64_local_relocation_p
+ PARAMS ((bfd *, const Elf_Internal_Rela *, asection **, boolean));
+static const Elf_Internal_Rela *mips_elf64_next_relocation
+ PARAMS ((unsigned int, const Elf_Internal_Rela *,
+ const Elf_Internal_Rela *));
+static boolean mips_elf64_create_dynamic_relocation
+ PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Rela *,
+ struct mips_elf64_link_hash_entry *, asection *, bfd_vma,
+ bfd_vma *, asection *));
+static bfd_reloc_status_type mips_elf64_calculate_relocation
+ PARAMS ((bfd *, bfd *, asection *, struct bfd_link_info *,
+ const Elf_Internal_Rela *, bfd_vma, reloc_howto_type *,
+ Elf_Internal_Sym *, asection **, bfd_vma *, const char **,
+ boolean *));
+static bfd_vma mips_elf64_obtain_contents
+ PARAMS ((reloc_howto_type *, const Elf_Internal_Rela *, bfd *, bfd_byte *));
+static boolean mips_elf64_perform_relocation
+ PARAMS ((struct bfd_link_info *, reloc_howto_type *,
+ const Elf_Internal_Rela *, bfd_vma,
+ bfd *, asection *, bfd_byte *, boolean));
+static boolean mips_elf64_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
+ Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+boolean mips_elf64_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+boolean mips_elf64_adjust_dynamic_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *h));
+boolean mips_elf64_always_size_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+static boolean mips_elf64_check_mips16_stubs
+ PARAMS ((struct mips_elf64_link_hash_entry *, PTR));
+boolean mips_elf64_size_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+boolean mips_elf64_finish_dynamic_symbol
+ PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
+ Elf_Internal_Sym *));
+boolean mips_elf64_finish_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *info));
+asection *mips_elf64_gc_mark_hook
+ PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
+boolean mips_elf64_gc_sweep_hook
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
+static boolean mips_elf64_create_got_section
+ PARAMS ((bfd *, struct bfd_link_info *));
+static boolean mips_elf64_record_global_got_symbol
+ PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *,
+ struct mips_elf64_got_info *));
+static asection *mips_elf64_create_msym_section PARAMS((bfd *));
+static void mips_elf64_allocate_dynamic_relocations
+ PARAMS ((bfd *, unsigned int));
+static boolean mips_elf64_stub_section_p PARAMS ((bfd *, asection *));
+boolean mips_elf64_check_relocs
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
+static boolean mips_elf64_output_extsym
+ PARAMS ((struct mips_elf64_link_hash_entry *, PTR));
+static void mips_elf64_swap_gptab_in
+ PARAMS ((bfd *, const Elf32_External_gptab *, Elf32_gptab *));
+static void mips_elf64_swap_gptab_out
+ PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *));
+static int gptab_compare PARAMS ((const PTR, const PTR));
+boolean mips_elf64_final_link PARAMS ((bfd *, struct bfd_link_info *));
+
+extern const bfd_target bfd_elf64_bigmips_vec;
+extern const bfd_target bfd_elf64_littlemips_vec;
+
+static bfd_vma prev_reloc_addend = 0;
+static bfd_size_type prev_reloc_address = 0;
+
+/* Whether we are trying to be compatible with IRIX6 (or little endianers
+ which are otherwise IRIX-ABI compliant). */
+#define SGI_COMPAT(abfd) \
+ ((abfd->xvec == &bfd_elf64_bigmips_vec) \
+ || (abfd->xvec == &bfd_elf64_littlemips_vec) ? true : false)
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
from smaller values. Start with zero, widen, *then* decrement. */
/* The number of local .got entries we reserve. */
#define MIPS_RESERVED_GOTNO (2)
+/* Instructions which appear in a stub. */
+#define ELF_MIPS_GP_OFFSET(abfd) 0x7ff0
+#define STUB_LW 0xdf998010 /* ld t9,0x8010(gp) */
+#define STUB_MOVE 0x03e07825 /* move t7,ra */
+#define STUB_JALR 0x0320f809 /* jal t9 */
+#define STUB_LI16 0x34180000 /* ori t8,zero,0 */
+#define MIPS_FUNCTION_STUB_SIZE (16)
+
/* The relocation table used for SHT_REL sections. */
+#define UNUSED_RELOC(num) { num, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+
static reloc_howto_type mips_elf64_howto_table_rel[] =
{
/* No relocation. */
/* 16 bit relocation. */
HOWTO (R_MIPS_16, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_16", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit relocation. */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_32", /* name */
true, /* partial_inplace */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_REL32", /* name */
true, /* partial_inplace */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
- /* 26 bit branch address. */
+ /* 26 bit jump address. */
HOWTO (R_MIPS_26, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
/* This needs complex overflow
- detection, because the upper four
+ detection, because the upper 36
bits must match the PC + 4. */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_26", /* name */
true, /* partial_inplace */
- 0x3ffffff, /* src_mask */
- 0x3ffffff, /* dst_mask */
+ 0x03ffffff, /* src_mask */
+ 0x03ffffff, /* dst_mask */
false), /* pcrel_offset */
/* High 16 bits of symbol value. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- _bfd_mips_elf_hi16_reloc, /* special_function */
+ bfd_elf_generic_reloc, /* special_function */
"R_MIPS_HI16", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Low 16 bits of symbol value. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- _bfd_mips_elf_lo16_reloc, /* special_function */
+ bfd_elf_generic_reloc, /* special_function */
"R_MIPS_LO16", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* GP relative reference. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- _bfd_mips_elf_gprel16_reloc, /* special_function */
+ mips_elf64_gprel16_reloc, /* special_function */
"R_MIPS_GPREL16", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Reference to literal section. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- _bfd_mips_elf_gprel16_reloc, /* special_function */
+ mips_elf64_literal_reloc, /* special_function */
"R_MIPS_LITERAL", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Reference to global offset table. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- _bfd_mips_elf_got16_reloc, /* special_function */
+ mips_elf64_got16_reloc, /* special_function */
"R_MIPS_GOT16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffff, /* dst_mask */
+ true, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* 16 bit PC relative reference. */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_PC16", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ true), /* pcrel_offset */
/* 16 bit call through global offset table. */
/* FIXME: This is not handled correctly. */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_CALL16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffff, /* dst_mask */
+ true, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit GP relative reference. */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- _bfd_mips_elf_gprel32_reloc, /* special_function */
+ complain_overflow_dont, /* complain_on_overflow */
+ mips_elf64_gprel32_reloc, /* special_function */
"R_MIPS_GPREL32", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
- { 13 },
- { 14 },
- { 15 },
+ UNUSED_RELOC (13),
+ UNUSED_RELOC (14),
+ UNUSED_RELOC (15),
/* A 5 bit shift field. */
HOWTO (R_MIPS_SHIFT5, /* type */
false), /* pcrel_offset */
/* A 6 bit shift field. */
- /* FIXME: This is not handled correctly; a special function is
- needed to put the most significant bit in the right place. */
HOWTO (R_MIPS_SHIFT6, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false, /* pc_relative */
6, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ mips_elf64_shift6_reloc, /* special_function */
"R_MIPS_SHIFT6", /* name */
true, /* partial_inplace */
0x000007c4, /* src_mask */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_64", /* name */
true, /* partial_inplace */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_DISP", /* name */
true, /* partial_inplace */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_PAGE", /* name */
true, /* partial_inplace */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_OFST", /* name */
true, /* partial_inplace */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_SUB", /* name */
true, /* partial_inplace */
/* FIXME: Not handled correctly. */
HOWTO (R_MIPS_INSERT_A, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 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_MIPS_INSERT_A", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Insert the addend as an instruction, and change all relocations
/* FIXME: Not handled correctly. */
HOWTO (R_MIPS_INSERT_B, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 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_MIPS_INSERT_B", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Delete a 32 bit instruction. */
/* FIXME: Not handled correctly. */
HOWTO (R_MIPS_DELETE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 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_MIPS_DELETE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Get the higher value of a 64 bit addend. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_HIGHER, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ mips_elf64_higher_reloc, /* special_function */
"R_MIPS_HIGHER", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Get the highest value of a 64 bit addend. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_HIGHEST, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ mips_elf64_highest_reloc, /* special_function */
"R_MIPS_HIGHEST", /* name */
true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* High 16 bits of displacement in global offset table. */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
- /* I'm not sure what the remaining relocs are, but they are defined
- on Irix 6. */
-
+ /* Section displacement, used by an associated event location section. */
+ /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_SCN_DISP, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 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_MIPS_SCN_DISP", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_MIPS_REL16, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_REL16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_MIPS_ADD_IMMEDIATE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
false), /* pcrel_offset */
- HOWTO (R_MIPS_PJUMP, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_MIPS_PJUMP", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
+ /* These two are obsolete. */
+ EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
+ EMPTY_HOWTO (R_MIPS_PJUMP),
+ /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
+ It must be used for multigot GOT's (and only there). */
HOWTO (R_MIPS_RELGOT, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 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_MIPS_RELGOT", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Protected jump conversion. This is an optimization hint. No
relocation is required for correctness. */
HOWTO (R_MIPS_JALR, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 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_MIPS_JALR", /* name */
false, /* partial_inplace */
- 0x00000000, /* src_mask */
+ 0, /* src_mask */
0x00000000, /* dst_mask */
false), /* pcrel_offset */
};
/* 16 bit relocation. */
HOWTO (R_MIPS_16, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit relocation. */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_32", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_REL32", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
- /* 26 bit branch address. */
+ /* 26 bit jump address. */
HOWTO (R_MIPS_26, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
/* This needs complex overflow
- detection, because the upper four
+ detection, because the upper 36
bits must match the PC + 4. */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_26", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0x3ffffff, /* dst_mask */
+ 0x03ffffff, /* dst_mask */
false), /* pcrel_offset */
+ /* R_MIPS_HI16 and R_MIPS_LO16 are unsupported for 64 bit REL. */
/* High 16 bits of symbol value. */
HOWTO (R_MIPS_HI16, /* type */
0, /* rightshift */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_HI16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Low 16 bits of symbol value. */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_LO16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* GP relative reference. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- _bfd_mips_elf_gprel16_reloc, /* special_function */
+ mips_elf64_gprel16_reloca, /* special_function */
"R_MIPS_GPREL16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Reference to literal section. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- _bfd_mips_elf_gprel16_reloc, /* special_function */
+ mips_elf64_literal_reloc, /* special_function */
"R_MIPS_LITERAL", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Reference to global offset table. */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT16", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* 16 bit PC relative reference. */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_PC16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
+ 0x0000ffff, /* dst_mask */
+ true), /* pcrel_offset */
/* 16 bit call through global offset table. */
/* FIXME: This is not handled correctly. */
"R_MIPS_CALL16", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit GP relative reference. */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- _bfd_mips_elf_gprel32_reloc, /* special_function */
+ complain_overflow_dont, /* complain_on_overflow */
+ mips_elf64_gprel32_reloc, /* special_function */
"R_MIPS_GPREL32", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
- { 13 },
- { 14 },
- { 15 },
+ UNUSED_RELOC (13),
+ UNUSED_RELOC (14),
+ UNUSED_RELOC (15),
/* A 5 bit shift field. */
HOWTO (R_MIPS_SHIFT5, /* type */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_SHIFT5", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x000007c0, /* dst_mask */
false), /* pcrel_offset */
/* A 6 bit shift field. */
- /* FIXME: This is not handled correctly; a special function is
- needed to put the most significant bit in the right place. */
HOWTO (R_MIPS_SHIFT6, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false, /* pc_relative */
6, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ mips_elf64_shift6_reloc, /* special_function */
"R_MIPS_SHIFT6", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x000007c4, /* dst_mask */
false), /* pcrel_offset */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_64", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
MINUS_ONE, /* dst_mask */
false), /* pcrel_offset */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_DISP", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_PAGE", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_OFST", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_HI16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_GOT_LO16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_SUB", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
MINUS_ONE, /* dst_mask */
false), /* pcrel_offset */
/* FIXME: Not handled correctly. */
HOWTO (R_MIPS_INSERT_A, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
"R_MIPS_INSERT_A", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0, /* dst_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Insert the addend as an instruction, and change all relocations
/* FIXME: Not handled correctly. */
HOWTO (R_MIPS_INSERT_B, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
"R_MIPS_INSERT_B", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0, /* dst_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Delete a 32 bit instruction. */
/* FIXME: Not handled correctly. */
HOWTO (R_MIPS_DELETE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
"R_MIPS_DELETE", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0, /* dst_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Get the higher value of a 64 bit addend. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_HIGHER, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ bfd_elf_generic_reloc, /* special_function */
"R_MIPS_HIGHER", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* Get the highest value of a 64 bit addend. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_HIGHEST, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ bfd_elf_generic_reloc, /* special_function */
"R_MIPS_HIGHEST", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
- 0xffff, /* dst_mask */
+ 0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* High 16 bits of displacement in global offset table. */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_CALL_HI16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_CALL_LO16", /* name */
- true, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
- /* I'm not sure what the remaining relocs are, but they are defined
- on Irix 6. */
-
+ /* Section displacement, used by an associated event location section. */
+ /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_SCN_DISP, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
"R_MIPS_SCN_DISP", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0, /* dst_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_MIPS_REL16, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MIPS_REL16", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_MIPS_ADD_IMMEDIATE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
+ 0xffff, /* dst_mask */
false), /* pcrel_offset */
- HOWTO (R_MIPS_PJUMP, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_MIPS_PJUMP", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
+ /* These two are obsolete. */
+ EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
+ EMPTY_HOWTO (R_MIPS_PJUMP),
+ /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
+ It must be used for multigot GOT's (and only there). */
HOWTO (R_MIPS_RELGOT, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
"R_MIPS_RELGOT", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0, /* dst_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Protected jump conversion. This is an optimization hint. No
relocation is required for correctness. */
HOWTO (R_MIPS_JALR, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
+ 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_MIPS_JALR", /* name */
false, /* partial_inplace */
- 0x00000000, /* src_mask */
+ 0, /* src_mask */
0x00000000, /* dst_mask */
false), /* pcrel_offset */
};
const Elf64_Mips_External_Rel *src;
Elf64_Mips_Internal_Rel *dst;
{
- dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset);
- dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym);
- dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym);
- dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3);
- dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2);
- dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type);
+ dst->r_offset = H_GET_64 (abfd, src->r_offset);
+ dst->r_sym = H_GET_32 (abfd, src->r_sym);
+ dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
+ dst->r_type3 = H_GET_8 (abfd, src->r_type3);
+ dst->r_type2 = H_GET_8 (abfd, src->r_type2);
+ dst->r_type = H_GET_8 (abfd, src->r_type);
}
/* Swap in a MIPS 64-bit Rela reloc. */
const Elf64_Mips_External_Rela *src;
Elf64_Mips_Internal_Rela *dst;
{
- dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset);
- dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym);
- dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym);
- dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3);
- dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2);
- dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type);
- dst->r_addend = bfd_h_get_signed_64 (abfd, (bfd_byte *) src->r_addend);
+ dst->r_offset = H_GET_64 (abfd, src->r_offset);
+ dst->r_sym = H_GET_32 (abfd, src->r_sym);
+ dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
+ dst->r_type3 = H_GET_8 (abfd, src->r_type3);
+ dst->r_type2 = H_GET_8 (abfd, src->r_type2);
+ dst->r_type = H_GET_8 (abfd, src->r_type);
+ dst->r_addend = H_GET_S64 (abfd, src->r_addend);
}
/* Swap out a MIPS 64-bit Rel reloc. */
const Elf64_Mips_Internal_Rel *src;
Elf64_Mips_External_Rel *dst;
{
- bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset);
- bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym);
- bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym);
- bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3);
- bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2);
- bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type);
+ H_PUT_64 (abfd, src->r_offset, dst->r_offset);
+ H_PUT_32 (abfd, src->r_sym, dst->r_sym);
+ H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
+ H_PUT_8 (abfd, src->r_type3, dst->r_type3);
+ H_PUT_8 (abfd, src->r_type2, dst->r_type2);
+ H_PUT_8 (abfd, src->r_type, dst->r_type);
}
/* Swap out a MIPS 64-bit Rela reloc. */
const Elf64_Mips_Internal_Rela *src;
Elf64_Mips_External_Rela *dst;
{
- bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset);
- bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym);
- bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym);
- bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3);
- bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2);
- bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type);
- bfd_h_put_64 (abfd, src->r_addend, (bfd_byte *) dst->r_addend);
+ H_PUT_64 (abfd, src->r_offset, dst->r_offset);
+ H_PUT_32 (abfd, src->r_sym, dst->r_sym);
+ H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
+ H_PUT_8 (abfd, src->r_type3, dst->r_type3);
+ H_PUT_8 (abfd, src->r_type2, dst->r_type2);
+ H_PUT_8 (abfd, src->r_type, dst->r_type);
+ H_PUT_S64 (abfd, src->r_addend, dst->r_addend);
}
/* Swap in a MIPS 64-bit Rel reloc. */
&mirel);
dst[0].r_offset = mirel.r_offset;
- dst[0].r_info = ELF32_R_INFO (mirel.r_sym, mirel.r_type);
+ dst[0].r_info = ELF64_R_INFO (mirel.r_sym, mirel.r_type);
dst[1].r_offset = mirel.r_offset;
- dst[1].r_info = ELF32_R_INFO (mirel.r_ssym, mirel.r_type2);
+ dst[1].r_info = ELF64_R_INFO (mirel.r_ssym, mirel.r_type2);
dst[2].r_offset = mirel.r_offset;
- dst[2].r_info = ELF32_R_INFO (STN_UNDEF, mirel.r_type3);
+ dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirel.r_type3);
}
/* Swap in a MIPS 64-bit Rela reloc. */
&mirela);
dst[0].r_offset = mirela.r_offset;
- dst[0].r_info = ELF32_R_INFO (mirela.r_sym, mirela.r_type);
+ dst[0].r_info = ELF64_R_INFO (mirela.r_sym, mirela.r_type);
dst[0].r_addend = mirela.r_addend;
dst[1].r_offset = mirela.r_offset;
- dst[1].r_info = ELF32_R_INFO (mirela.r_ssym, mirela.r_type2);
+ dst[1].r_info = ELF64_R_INFO (mirela.r_ssym, mirela.r_type2);
dst[1].r_addend = 0;
dst[2].r_offset = mirela.r_offset;
- dst[2].r_info = ELF32_R_INFO (STN_UNDEF, mirela.r_type3);
+ dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirela.r_type3);
dst[2].r_addend = 0;
}
{
Elf64_Mips_Internal_Rel mirel;
- mirel.r_offset = src->r_offset;
- mirel.r_type = ELF32_R_TYPE (src->r_info);
- mirel.r_sym = ELF32_R_SYM (src->r_info);
- mirel.r_type2 = R_MIPS_NONE;
- mirel.r_ssym = STN_UNDEF;
- mirel.r_type3 = R_MIPS_NONE;
+ mirel.r_offset = src[0].r_offset;
+ BFD_ASSERT(src[0].r_offset == src[1].r_offset);
+ BFD_ASSERT(src[0].r_offset == src[2].r_offset);
+
+ mirel.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
+ mirel.r_sym = ELF64_R_SYM (src[0].r_info);
+ mirel.r_type2 = ELF64_MIPS_R_TYPE2 (src[1].r_info);
+ mirel.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
+ mirel.r_type3 = ELF64_MIPS_R_TYPE3 (src[2].r_info);
mips_elf64_swap_reloc_out (abfd, &mirel,
(Elf64_Mips_External_Rel *) dst);
{
Elf64_Mips_Internal_Rela mirela;
- mirela.r_offset = src->r_offset;
- mirela.r_type = ELF32_R_TYPE (src->r_info);
- mirela.r_addend = src->r_addend;
- mirela.r_sym = ELF32_R_SYM (src->r_info);
- mirela.r_type2 = R_MIPS_NONE;
- mirela.r_ssym = STN_UNDEF;
- mirela.r_type3 = R_MIPS_NONE;
+ mirela.r_offset = src[0].r_offset;
+ BFD_ASSERT(src[0].r_offset == src[1].r_offset);
+ BFD_ASSERT(src[0].r_offset == src[2].r_offset);
+
+ mirela.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
+ mirela.r_sym = ELF64_R_SYM (src[0].r_info);
+ mirela.r_addend = src[0].r_addend;
+ BFD_ASSERT(src[1].r_addend == 0);
+ BFD_ASSERT(src[2].r_addend == 0);
+
+ mirela.r_type2 = ELF64_MIPS_R_TYPE2 (src[1].r_info);
+ mirela.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
+ mirela.r_type3 = ELF64_MIPS_R_TYPE3 (src[2].r_info);
mips_elf64_swap_reloca_out (abfd, &mirela,
(Elf64_Mips_External_Rela *) dst);
}
-/* A mapping from BFD reloc types to MIPS ELF reloc types. */
+/* Calculate the %high function. */
-struct elf_reloc_map
+static bfd_vma
+mips_elf64_high (value)
+ bfd_vma value;
{
- bfd_reloc_code_real_type bfd_reloc_val;
- enum elf_mips_reloc_type elf_reloc_val;
-};
+ return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
+}
-static CONST struct elf_reloc_map mips_reloc_map[] =
-{
- { BFD_RELOC_NONE, R_MIPS_NONE, },
- { BFD_RELOC_16, R_MIPS_16 },
- { BFD_RELOC_32, R_MIPS_32 },
- { BFD_RELOC_64, R_MIPS_64 },
- { BFD_RELOC_CTOR, R_MIPS_64 },
- { BFD_RELOC_32_PCREL, R_MIPS_REL32 },
- { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
- { BFD_RELOC_HI16_S, R_MIPS_HI16 },
- { BFD_RELOC_LO16, R_MIPS_LO16 },
- { BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 },
- { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
- { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
- { BFD_RELOC_16_PCREL, R_MIPS_PC16 },
- { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
- { BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 },
- { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
- { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
- { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
- { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
- { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
- { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
- { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
- { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP }
-};
+/* Calculate the %higher function. */
-/* Given a BFD reloc type, return a howto structure. */
+static bfd_vma
+mips_elf64_higher (value)
+ bfd_vma value;
+{
+ return ((value + (bfd_vma) 0x80008000) >> 32) & 0xffff;
+}
-static reloc_howto_type *
-mips_elf64_reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+/* Calculate the %highest function. */
+
+static bfd_vma
+mips_elf64_highest (value)
+ bfd_vma value;
{
- unsigned int i;
+ return ((value + (bfd_vma) 0x800080008000) >> 48) & 0xffff;
+}
+
+/* Do a R_MIPS_HI16 relocation. */
- for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++)
+bfd_reloc_status_type
+mips_elf64_hi16_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd,
+ error_message)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message ATTRIBUTE_UNUSED;
+{
+ /* If we're relocating, and this is an external symbol, we don't
+ want to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
{
- if (mips_reloc_map[i].bfd_reloc_val == code)
- {
- int v;
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
- v = (int) mips_reloc_map[i].elf_reloc_val;
- return &mips_elf64_howto_table_rel[v];
- }
+ if (((reloc_entry->addend & 0xffff) + 0x8000) & ~0xffff)
+ reloc_entry->addend += 0x8000;
+
+ return bfd_reloc_continue;
+}
+
+/* Do a R_MIPS_HIGHER relocation. */
+
+bfd_reloc_status_type
+mips_elf64_higher_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd,
+ error_message)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message ATTRIBUTE_UNUSED;
+{
+ /* If we're relocating, and this is an external symbol, we don't
+ want to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
}
- return NULL;
+ if (((reloc_entry->addend & 0xffffffff) + 0x80008000)
+ & ~0xffffffff)
+ reloc_entry->addend += 0x80008000;
+
+ return bfd_reloc_continue;
}
-/* Since each entry in an SHT_REL or SHT_RELA section can represent up
- to three relocs, we must tell the user to allocate more space. */
+/* Do a R_MIPS_HIGHEST relocation. */
-static long
-mips_elf64_get_reloc_upper_bound (abfd, sec)
+bfd_reloc_status_type
+mips_elf64_highest_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd,
+ error_message)
bfd *abfd ATTRIBUTE_UNUSED;
- asection *sec;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message ATTRIBUTE_UNUSED;
{
- return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
+ /* If we're relocating, and this is an external symbol, we don't
+ want to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (((reloc_entry->addend & 0xffffffffffff) + 0x800080008000)
+ & ~0xffffffffffff)
+ reloc_entry->addend += 0x800080008000;
+
+ return bfd_reloc_continue;
}
-/* Read the relocations from one reloc section. */
+/* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset
+ table used for PIC code. If the symbol is an external symbol, the
+ instruction is modified to contain the offset of the appropriate
+ entry in the global offset table. If the symbol is a section
+ symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit
+ addends are combined to form the real addend against the section
+ symbol; the GOT16 is modified to contain the offset of an entry in
+ the global offset table, and the LO16 is modified to offset it
+ appropriately. Thus an offset larger than 16 bits requires a
+ modified value in the global offset table.
+
+ This implementation suffices for the assembler, but the linker does
+ not yet know how to create global offset tables. */
+
+bfd_reloc_status_type
+mips_elf64_got16_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ /* If we're relocating, and this an external symbol, we don't want
+ to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* If we're relocating, and this is a local symbol, we can handle it
+ just like HI16. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) != 0)
+ return mips_elf64_hi16_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+
+ abort ();
+}
+
+/* Set the GP value for OUTPUT_BFD. Returns false if this is a
+ dangerous relocation. */
static boolean
-mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, rel_hdr)
- bfd *abfd;
- asection *asect;
- asymbol **symbols;
- const Elf_Internal_Shdr *rel_hdr;
+mips_elf64_assign_gp (output_bfd, pgp)
+ bfd *output_bfd;
+ bfd_vma *pgp;
{
- PTR allocated = NULL;
- bfd_byte *native_relocs;
- arelent *relents;
- arelent *relent;
unsigned int count;
+ asymbol **sym;
unsigned int i;
- int entsize;
- reloc_howto_type *howto_table;
-
- allocated = (PTR) bfd_malloc (rel_hdr->sh_size);
- if (allocated == NULL)
- goto error_return;
- if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (allocated, 1, rel_hdr->sh_size, abfd) != rel_hdr->sh_size))
- goto error_return;
+ /* If we've already figured out what GP will be, just return it. */
+ *pgp = _bfd_get_gp_value (output_bfd);
+ if (*pgp)
+ return true;
- native_relocs = (bfd_byte *) allocated;
+ count = bfd_get_symcount (output_bfd);
+ sym = bfd_get_outsymbols (output_bfd);
- relents = asect->relocation + asect->reloc_count;
+ /* The linker script will have created a symbol named `_gp' with the
+ appropriate value. */
+ if (sym == (asymbol **) NULL)
+ i = count;
+ else
+ {
+ for (i = 0; i < count; i++, sym++)
+ {
+ register CONST char *name;
- entsize = rel_hdr->sh_entsize;
- BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel)
- || entsize == sizeof (Elf64_Mips_External_Rela));
+ name = bfd_asymbol_name (*sym);
+ if (*name == '_' && strcmp (name, "_gp") == 0)
+ {
+ *pgp = bfd_asymbol_value (*sym);
+ _bfd_set_gp_value (output_bfd, *pgp);
+ break;
+ }
+ }
+ }
- count = rel_hdr->sh_size / entsize;
+ if (i >= count)
+ {
+ /* Only get the error once. */
+ *pgp = 4;
+ _bfd_set_gp_value (output_bfd, *pgp);
+ return false;
+ }
- if (entsize == sizeof (Elf64_Mips_External_Rel))
- howto_table = mips_elf64_howto_table_rel;
- else
- howto_table = mips_elf64_howto_table_rela;
+ return true;
+}
- relent = relents;
- for (i = 0; i < count; i++, native_relocs += entsize)
+/* We have to figure out the gp value, so that we can adjust the
+ symbol value correctly. We look up the symbol _gp in the output
+ BFD. If we can't find it, we're stuck. We cache it in the ELF
+ target data. We don't need to adjust the symbol value for an
+ external symbol if we are producing relocateable output. */
+
+static bfd_reloc_status_type
+mips_elf64_final_gp (output_bfd, symbol, relocateable, error_message, pgp)
+ bfd *output_bfd;
+ asymbol *symbol;
+ boolean relocateable;
+ char **error_message;
+ bfd_vma *pgp;
+{
+ if (bfd_is_und_section (symbol->section)
+ && ! relocateable)
{
- Elf64_Mips_Internal_Rela rela;
- boolean used_sym, used_ssym;
- int ir;
+ *pgp = 0;
+ return bfd_reloc_undefined;
+ }
- if (entsize == sizeof (Elf64_Mips_External_Rela))
- mips_elf64_swap_reloca_in (abfd,
- (Elf64_Mips_External_Rela *) native_relocs,
- &rela);
- else
+ *pgp = _bfd_get_gp_value (output_bfd);
+ if (*pgp == 0
+ && (! relocateable
+ || (symbol->flags & BSF_SECTION_SYM) != 0))
+ {
+ if (relocateable)
{
- Elf64_Mips_Internal_Rel rel;
-
- mips_elf64_swap_reloc_in (abfd,
- (Elf64_Mips_External_Rel *) native_relocs,
- &rel);
- rela.r_offset = rel.r_offset;
- rela.r_sym = rel.r_sym;
- rela.r_ssym = rel.r_ssym;
- rela.r_type3 = rel.r_type3;
- rela.r_type2 = rel.r_type2;
- rela.r_type = rel.r_type;
- rela.r_addend = 0;
+ /* Make up a value. */
+ *pgp = symbol->section->output_section->vma + 0x4000;
+ _bfd_set_gp_value (output_bfd, *pgp);
+ }
+ else if (!mips_elf64_assign_gp (output_bfd, pgp))
+ {
+ *error_message =
+ (char *) _("GP relative relocation when _gp not defined");
+ return bfd_reloc_dangerous;
}
+ }
- /* Each entry represents up to three actual relocations. */
+ return bfd_reloc_ok;
+}
- used_sym = false;
- used_ssym = false;
- for (ir = 0; ir < 3; ir++)
- {
- enum elf_mips_reloc_type type;
+/* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
+ become the offset from the gp register. */
- switch (ir)
- {
- default:
- abort ();
- case 0:
- type = (enum elf_mips_reloc_type) rela.r_type;
- break;
- case 1:
- type = (enum elf_mips_reloc_type) rela.r_type2;
- break;
- case 2:
- type = (enum elf_mips_reloc_type) rela.r_type3;
- break;
- }
+bfd_reloc_status_type
+mips_elf64_gprel16_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ boolean relocateable;
+ bfd_reloc_status_type ret;
+ bfd_vma gp;
+
+ /* If we're relocating, and this is an external symbol with no
+ addend, we don't want to change anything. We will only have an
+ addend if this is a newly created reloc, not read from an ELF
+ file. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
- if (type == R_MIPS_NONE)
- {
- /* There are no more relocations in this entry. If this
- is the first entry, we need to generate a dummy
- relocation so that the generic linker knows that
- there has been a break in the sequence of relocations
- applying to a particular address. */
- if (ir == 0)
- {
- relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
- if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
- relent->address = rela.r_offset;
- else
- relent->address = rela.r_offset - asect->vma;
- relent->addend = 0;
- relent->howto = &howto_table[(int) R_MIPS_NONE];
- ++relent;
- }
- break;
- }
+ if (output_bfd != (bfd *) NULL)
+ relocateable = true;
+ else
+ {
+ relocateable = false;
+ output_bfd = symbol->section->output_section->owner;
+ }
- /* Some types require symbols, whereas some do not. */
- switch (type)
- {
- case R_MIPS_NONE:
- case R_MIPS_LITERAL:
- case R_MIPS_INSERT_A:
- case R_MIPS_INSERT_B:
- case R_MIPS_DELETE:
- relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
- break;
+ ret = mips_elf64_final_gp (output_bfd, symbol, relocateable, error_message,
+ &gp);
+ if (ret != bfd_reloc_ok)
+ return ret;
- default:
- if (! used_sym)
- {
- if (rela.r_sym == 0)
+ return gprel16_with_gp (abfd, symbol, reloc_entry, input_section,
+ relocateable, data, gp);
+}
+
+static bfd_reloc_status_type
+gprel16_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data,
+ gp)
+ bfd *abfd;
+ asymbol *symbol;
+ arelent *reloc_entry;
+ asection *input_section;
+ boolean relocateable;
+ PTR data;
+ bfd_vma gp;
+{
+ bfd_vma relocation;
+ unsigned long insn;
+ unsigned long val;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
+
+ /* Set val to the offset into the section or symbol. */
+ if (reloc_entry->howto->src_mask == 0)
+ {
+ /* This case occurs with the 64-bit MIPS ELF ABI. */
+ val = reloc_entry->addend;
+ }
+ else
+ {
+ val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
+ if (val & 0x8000)
+ val -= 0x10000;
+ }
+
+ /* Adjust val for the final section location and GP value. If we
+ are producing relocateable output, we don't want to do this for
+ an external symbol. */
+ if (! relocateable
+ || (symbol->flags & BSF_SECTION_SYM) != 0)
+ val += relocation - gp;
+
+ insn = (insn & ~0xffff) | (val & 0xffff);
+ bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
+
+ if (relocateable)
+ reloc_entry->address += input_section->output_offset;
+
+ else if ((long) val >= 0x8000 || (long) val < -0x8000)
+ return bfd_reloc_overflow;
+
+ return bfd_reloc_ok;
+}
+
+/* Do a R_MIPS_GPREL16 RELA relocation. */
+
+bfd_reloc_status_type
+mips_elf64_gprel16_reloca (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ boolean relocateable;
+ bfd_vma gp;
+
+ /* This works only for NewABI. */
+ BFD_ASSERT (reloc_entry->howto->src_mask == 0);
+
+ /* If we're relocating, and this is an external symbol with no
+ addend, we don't want to change anything. We will only have an
+ addend if this is a newly created reloc, not read from an ELF
+ file. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (output_bfd != (bfd *) NULL)
+ relocateable = true;
+ else
+ {
+ relocateable = false;
+ output_bfd = symbol->section->output_section->owner;
+ }
+
+ if (prev_reloc_address != reloc_entry->address)
+ prev_reloc_address = reloc_entry->address;
+ else
+ {
+ mips_elf64_final_gp (output_bfd, symbol, relocateable, error_message,
+ &gp);
+ prev_reloc_addend = reloc_entry->addend + reloc_entry->address - gp;
+ if (symbol->flags & BSF_LOCAL)
+ prev_reloc_addend += _bfd_get_gp_value (abfd);
+/*fprintf(stderr, "Addend: %lx, Next Addend: %lx\n", reloc_entry->addend, prev_reloc_addend);*/
+ }
+
+ return bfd_reloc_ok;
+}
+
+/* Do a R_MIPS_LITERAL relocation. */
+
+bfd_reloc_status_type
+mips_elf64_literal_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ /* If we're relocating, and this is an external symbol, we don't
+ want to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* FIXME: The entries in the .lit8 and .lit4 sections should be merged.
+ Currently we simply call mips_elf64_gprel16_reloc. */
+ return mips_elf64_gprel16_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+}
+
+/* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset
+ from the gp register? XXX */
+
+bfd_reloc_status_type
+mips_elf64_gprel32_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ boolean relocateable;
+ bfd_reloc_status_type ret;
+ bfd_vma gp;
+ bfd_vma relocation;
+ unsigned long val;
+
+ /* If we're relocating, and this is an external symbol with no
+ addend, we don't want to change anything. We will only have an
+ addend if this is a newly created reloc, not read from an ELF
+ file. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
+ {
+ *error_message = (char *)
+ _("32bits gp relative relocation occurs for an external symbol");
+ return bfd_reloc_outofrange;
+ }
+
+ if (output_bfd != (bfd *) NULL)
+ {
+ relocateable = true;
+ gp = _bfd_get_gp_value (output_bfd);
+ }
+ else
+ {
+ relocateable = false;
+ output_bfd = symbol->section->output_section->owner;
+
+ ret = mips_elf64_final_gp (output_bfd, symbol, relocateable,
+ error_message, &gp);
+ if (ret != bfd_reloc_ok)
+ return ret;
+ }
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ if (reloc_entry->howto->src_mask == 0)
+ {
+ /* This case arises with the 64-bit MIPS ELF ABI. */
+ val = 0;
+ }
+ else
+ val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
+
+ /* Set val to the offset into the section or symbol. */
+ val += reloc_entry->addend;
+
+ /* Adjust val for the final section location and GP value. If we
+ are producing relocateable output, we don't want to do this for
+ an external symbol. */
+ if (! relocateable
+ || (symbol->flags & BSF_SECTION_SYM) != 0)
+ val += relocation - gp;
+
+ bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
+
+ if (relocateable)
+ reloc_entry->address += input_section->output_offset;
+
+ return bfd_reloc_ok;
+}
+
+/* Do a R_MIPS_SHIFT6 relocation. The MSB of the shift is stored at bit 2,
+ the rest is at bits 6-10. The bitpos alredy got right by the howto. */
+
+bfd_reloc_status_type
+mips_elf64_shift6_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message ATTRIBUTE_UNUSED;
+{
+ /* If we're relocating, and this is an external symbol, we don't
+ want to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ reloc_entry->addend = (reloc_entry->addend & 0x00007c0)
+ | (reloc_entry->addend & 0x00000800) >> 9;
+
+ return bfd_reloc_continue;
+}
+
+static int
+mips_elf64_additional_program_headers (abfd)
+ bfd *abfd;
+{
+ int ret = 0;
+
+ /* See if we need a PT_MIPS_OPTIONS segment. */
+ if (bfd_get_section_by_name (abfd, ".MIPS.options"))
+ ++ret;
+
+ return ret;
+}
+
+/* Given a BFD reloc type, return a howto structure. */
+
+static reloc_howto_type *
+mips_elf64_reloc_type_lookup (abfd, code)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ bfd_reloc_code_real_type code;
+{
+ /* FIXME: We default to RELA here instead of choosing the right
+ relocation variant. */
+ reloc_howto_type *howto_table = mips_elf64_howto_table_rela;
+
+ switch (code)
+ {
+ case BFD_RELOC_NONE:
+ return &howto_table[R_MIPS_NONE];
+ case BFD_RELOC_16:
+ return &howto_table[R_MIPS_16];
+ case BFD_RELOC_32:
+ return &howto_table[R_MIPS_32];
+ case BFD_RELOC_64:
+ case BFD_RELOC_CTOR:
+ /* We need to handle these specially. Select the right
+ relocation (R_MIPS_32 or R_MIPS_64) based on the
+ size of addresses on this architecture. */
+ if (bfd_arch_bits_per_address (abfd) == 32)
+ return &howto_table[R_MIPS_32];
+ else
+ return &howto_table[R_MIPS_64];
+
+ case BFD_RELOC_16_PCREL:
+ return &howto_table[R_MIPS_PC16];
+ case BFD_RELOC_HI16_S:
+ return &howto_table[R_MIPS_HI16];
+ case BFD_RELOC_LO16:
+ return &howto_table[R_MIPS_LO16];
+ case BFD_RELOC_GPREL16:
+ return &howto_table[R_MIPS_GPREL16];
+ case BFD_RELOC_GPREL32:
+ return &howto_table[R_MIPS_GPREL32];
+ case BFD_RELOC_MIPS_JMP:
+ return &howto_table[R_MIPS_26];
+ case BFD_RELOC_MIPS_LITERAL:
+ return &howto_table[R_MIPS_LITERAL];
+ case BFD_RELOC_MIPS_GOT16:
+ return &howto_table[R_MIPS_GOT16];
+ case BFD_RELOC_MIPS_CALL16:
+ return &howto_table[R_MIPS_CALL16];
+ case BFD_RELOC_MIPS_SHIFT5:
+ return &howto_table[R_MIPS_SHIFT5];
+ case BFD_RELOC_MIPS_SHIFT6:
+ return &howto_table[R_MIPS_SHIFT6];
+ case BFD_RELOC_MIPS_GOT_DISP:
+ return &howto_table[R_MIPS_GOT_DISP];
+ case BFD_RELOC_MIPS_GOT_PAGE:
+ return &howto_table[R_MIPS_GOT_PAGE];
+ case BFD_RELOC_MIPS_GOT_OFST:
+ return &howto_table[R_MIPS_GOT_OFST];
+ case BFD_RELOC_MIPS_GOT_HI16:
+ return &howto_table[R_MIPS_GOT_HI16];
+ case BFD_RELOC_MIPS_GOT_LO16:
+ return &howto_table[R_MIPS_GOT_LO16];
+ case BFD_RELOC_MIPS_SUB:
+ return &howto_table[R_MIPS_SUB];
+ case BFD_RELOC_MIPS_INSERT_A:
+ return &howto_table[R_MIPS_INSERT_A];
+ case BFD_RELOC_MIPS_INSERT_B:
+ return &howto_table[R_MIPS_INSERT_B];
+ case BFD_RELOC_MIPS_DELETE:
+ return &howto_table[R_MIPS_DELETE];
+ case BFD_RELOC_MIPS_HIGHEST:
+ return &howto_table[R_MIPS_HIGHEST];
+ case BFD_RELOC_MIPS_HIGHER:
+ return &howto_table[R_MIPS_HIGHER];
+ case BFD_RELOC_MIPS_CALL_HI16:
+ return &howto_table[R_MIPS_CALL_HI16];
+ case BFD_RELOC_MIPS_CALL_LO16:
+ return &howto_table[R_MIPS_CALL_LO16];
+ case BFD_RELOC_MIPS_SCN_DISP:
+ return &howto_table[R_MIPS_SCN_DISP];
+ case BFD_RELOC_MIPS_REL16:
+ return &howto_table[R_MIPS_REL16];
+ /* Use of R_MIPS_ADD_IMMEDIATE and R_MIPS_PJUMP is deprecated. */
+ case BFD_RELOC_MIPS_RELGOT:
+ return &howto_table[R_MIPS_RELGOT];
+ case BFD_RELOC_MIPS_JALR:
+ return &howto_table[R_MIPS_JALR];
+/*
+ case BFD_RELOC_MIPS16_JMP:
+ return &elf_mips16_jump_howto;
+ case BFD_RELOC_MIPS16_GPREL:
+ return &elf_mips16_gprel_howto;
+ case BFD_RELOC_VTABLE_INHERIT:
+ return &elf_mips_gnu_vtinherit_howto;
+ case BFD_RELOC_VTABLE_ENTRY:
+ return &elf_mips_gnu_vtentry_howto;
+ case BFD_RELOC_PCREL_HI16_S:
+ return &elf_mips_gnu_rel_hi16;
+ case BFD_RELOC_PCREL_LO16:
+ return &elf_mips_gnu_rel_lo16;
+ case BFD_RELOC_16_PCREL_S2:
+ return &elf_mips_gnu_rel16_s2;
+ case BFD_RELOC_64_PCREL:
+ return &elf_mips_gnu_pcrel64;
+ case BFD_RELOC_32_PCREL:
+ return &elf_mips_gnu_pcrel32;
+*/
+ default:
+ bfd_set_error (bfd_error_bad_value);
+ return NULL;
+ }
+}
+
+/* Prevent relocation handling by bfd for MIPS ELF64. */
+
+static void
+mips_elf64_info_to_howto_rel (abfd, cache_ptr, dst)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *cache_ptr ATTRIBUTE_UNUSED;
+ Elf64_Internal_Rel *dst ATTRIBUTE_UNUSED;
+{
+ BFD_ASSERT (0);
+}
+
+static void
+mips_elf64_info_to_howto_rela (abfd, cache_ptr, dst)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *cache_ptr ATTRIBUTE_UNUSED;
+ Elf64_Internal_Rela *dst ATTRIBUTE_UNUSED;
+{
+ BFD_ASSERT (0);
+}
+
+/* Since each entry in an SHT_REL or SHT_RELA section can represent up
+ to three relocs, we must tell the user to allocate more space. */
+
+static long
+mips_elf64_get_reloc_upper_bound (abfd, sec)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *sec;
+{
+ return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
+}
+
+/* Read the relocations from one reloc section. */
+
+static boolean
+mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, rel_hdr)
+ bfd *abfd;
+ asection *asect;
+ asymbol **symbols;
+ const Elf_Internal_Shdr *rel_hdr;
+{
+ PTR allocated = NULL;
+ bfd_byte *native_relocs;
+ arelent *relents;
+ arelent *relent;
+ bfd_vma count;
+ bfd_vma i;
+ int entsize;
+ reloc_howto_type *howto_table;
+
+ allocated = (PTR) bfd_malloc (rel_hdr->sh_size);
+ if (allocated == NULL)
+ return false;
+
+ if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
+ || (bfd_bread (allocated, rel_hdr->sh_size, abfd) != rel_hdr->sh_size))
+ goto error_return;
+
+ native_relocs = (bfd_byte *) allocated;
+
+ relents = asect->relocation + asect->reloc_count;
+
+ entsize = rel_hdr->sh_entsize;
+ BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel)
+ || entsize == sizeof (Elf64_Mips_External_Rela));
+
+ count = rel_hdr->sh_size / entsize;
+
+ if (entsize == sizeof (Elf64_Mips_External_Rel))
+ howto_table = mips_elf64_howto_table_rel;
+ else
+ howto_table = mips_elf64_howto_table_rela;
+
+ relent = relents;
+ for (i = 0; i < count; i++, native_relocs += entsize)
+ {
+ Elf64_Mips_Internal_Rela rela;
+ boolean used_sym, used_ssym;
+ int ir;
+
+ if (entsize == sizeof (Elf64_Mips_External_Rela))
+ mips_elf64_swap_reloca_in (abfd,
+ (Elf64_Mips_External_Rela *) native_relocs,
+ &rela);
+ else
+ {
+ Elf64_Mips_Internal_Rel rel;
+
+ mips_elf64_swap_reloc_in (abfd,
+ (Elf64_Mips_External_Rel *) native_relocs,
+ &rel);
+ rela.r_offset = rel.r_offset;
+ rela.r_sym = rel.r_sym;
+ rela.r_ssym = rel.r_ssym;
+ rela.r_type3 = rel.r_type3;
+ rela.r_type2 = rel.r_type2;
+ rela.r_type = rel.r_type;
+ rela.r_addend = 0;
+ }
+
+ /* Each entry represents up to three actual relocations. */
+
+ used_sym = false;
+ used_ssym = false;
+ for (ir = 0; ir < 3; ir++)
+ {
+ enum elf_mips_reloc_type type;
+
+ switch (ir)
+ {
+ default:
+ abort ();
+ case 0:
+ type = (enum elf_mips_reloc_type) rela.r_type;
+ break;
+ case 1:
+ type = (enum elf_mips_reloc_type) rela.r_type2;
+ break;
+ case 2:
+ type = (enum elf_mips_reloc_type) rela.r_type3;
+ break;
+ }
+
+ if (type == R_MIPS_NONE)
+ {
+ /* There are no more relocations in this entry. If this
+ is the first entry, we need to generate a dummy
+ relocation so that the generic linker knows that
+ there has been a break in the sequence of relocations
+ applying to a particular address. */
+ if (ir == 0)
+ {
+ relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+ if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
+ relent->address = rela.r_offset;
+ else
+ relent->address = rela.r_offset - asect->vma;
+ relent->addend = 0;
+ relent->howto = &howto_table[(int) R_MIPS_NONE];
+ ++relent;
+ }
+ break;
+ }
+
+ /* Some types require symbols, whereas some do not. */
+ switch (type)
+ {
+ case R_MIPS_NONE:
+ case R_MIPS_LITERAL:
+ case R_MIPS_INSERT_A:
+ case R_MIPS_INSERT_B:
+ case R_MIPS_DELETE:
+ relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+ break;
+
+ default:
+ if (! used_sym)
+ {
+ if (rela.r_sym == 0)
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
else
{
asymbol **symbols;
boolean dynamic;
{
+ bfd_size_type amt;
struct bfd_elf_section_data * const d = elf_section_data (asect);
if (dynamic)
return true;
/* Allocate space for 3 arelent structures for each Rel structure. */
- asect->relocation = ((arelent *)
- bfd_alloc (abfd,
- asect->reloc_count * 3 * sizeof (arelent)));
+ amt = asect->reloc_count;
+ amt *= 3 * sizeof (arelent);
+ asect->relocation = (arelent *) bfd_alloc (abfd, amt);
if (asect->relocation == NULL)
return false;
- /* The slurp_one_reloc_table routine increments reloc_count. */
- asect->reloc_count = 0;
+ /* The slurp_one_reloc_table routine increments reloc_count. */
+ asect->reloc_count = 0;
+
+ if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, &d->rel_hdr))
+ return false;
+ if (d->rel_hdr2 != NULL)
+ {
+ if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols,
+ d->rel_hdr2))
+ return false;
+ }
+
+ return true;
+}
+
+/* Write out the relocations. */
+
+static void
+mips_elf64_write_relocs (abfd, sec, data)
+ bfd *abfd;
+ asection *sec;
+ PTR data;
+{
+ boolean *failedp = (boolean *) data;
+ int count;
+ Elf_Internal_Shdr *rel_hdr;
+ unsigned int idx;
+
+ /* If we have already failed, don't do anything. */
+ if (*failedp)
+ return;
+
+ if ((sec->flags & SEC_RELOC) == 0)
+ return;
+
+ /* The linker backend writes the relocs out itself, and sets the
+ reloc_count field to zero to inhibit writing them here. Also,
+ sometimes the SEC_RELOC flag gets set even when there aren't any
+ relocs. */
+ if (sec->reloc_count == 0)
+ return;
+
+ /* We can combine up to three relocs that refer to the same address
+ if the latter relocs have no associated symbol. */
+ count = 0;
+ for (idx = 0; idx < sec->reloc_count; idx++)
+ {
+ bfd_vma addr;
+ unsigned int i;
+
+ ++count;
+
+ addr = sec->orelocation[idx]->address;
+ for (i = 0; i < 2; i++)
+ {
+ arelent *r;
+
+ if (idx + 1 >= sec->reloc_count)
+ break;
+ r = sec->orelocation[idx + 1];
+ if (r->address != addr
+ || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
+ || (*r->sym_ptr_ptr)->value != 0)
+ break;
+
+ /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
+
+ ++idx;
+ }
+ }
+
+ rel_hdr = &elf_section_data (sec)->rel_hdr;
+
+ /* Do the actual relocation. */
+
+ if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rel))
+ mips_elf64_write_rel (abfd, sec, rel_hdr, &count, data);
+ else if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rela))
+ mips_elf64_write_rela (abfd, sec, rel_hdr, &count, data);
+ else
+ BFD_ASSERT (0);
+}
+
+static void
+mips_elf64_write_rel (abfd, sec, rel_hdr, count, data)
+ bfd *abfd;
+ asection *sec;
+ Elf_Internal_Shdr *rel_hdr;
+ int *count;
+ PTR data;
+{
+ boolean *failedp = (boolean *) data;
+ Elf64_Mips_External_Rel *ext_rel;
+ unsigned int idx;
+ asymbol *last_sym = 0;
+ int last_sym_idx = 0;
+
+ rel_hdr->sh_size = (bfd_vma)(rel_hdr->sh_entsize * *count);
+ rel_hdr->contents = (PTR) bfd_alloc (abfd, rel_hdr->sh_size);
+ if (rel_hdr->contents == NULL)
+ {
+ *failedp = true;
+ return;
+ }
+
+ ext_rel = (Elf64_Mips_External_Rel *) rel_hdr->contents;
+ for (idx = 0; idx < sec->reloc_count; idx++, ext_rel++)
+ {
+ arelent *ptr;
+ Elf64_Mips_Internal_Rel int_rel;
+ asymbol *sym;
+ int n;
+ unsigned int i;
+
+ ptr = sec->orelocation[idx];
+
+ /* The address of an ELF reloc is section relative for an object
+ file, and absolute for an executable file or shared library.
+ The address of a BFD reloc is always section relative. */
+ if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
+ int_rel.r_offset = ptr->address;
+ else
+ int_rel.r_offset = ptr->address + sec->vma;
+
+ sym = *ptr->sym_ptr_ptr;
+ if (sym == last_sym)
+ n = last_sym_idx;
+ else
+ {
+ last_sym = sym;
+ n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
+ if (n < 0)
+ {
+ *failedp = true;
+ return;
+ }
+ last_sym_idx = n;
+ }
+
+ int_rel.r_sym = n;
+ int_rel.r_ssym = RSS_UNDEF;
+
+ if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
+ && ! _bfd_elf_validate_reloc (abfd, ptr))
+ {
+ *failedp = true;
+ return;
+ }
+
+ int_rel.r_type = ptr->howto->type;
+ int_rel.r_type2 = (int) R_MIPS_NONE;
+ int_rel.r_type3 = (int) R_MIPS_NONE;
+
+ for (i = 0; i < 2; i++)
+ {
+ arelent *r;
+
+ if (idx + 1 >= sec->reloc_count)
+ break;
+ r = sec->orelocation[idx + 1];
+ if (r->address != ptr->address
+ || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
+ || (*r->sym_ptr_ptr)->value != 0)
+ break;
+
+ /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
+
+ if (i == 0)
+ int_rel.r_type2 = r->howto->type;
+ else
+ int_rel.r_type3 = r->howto->type;
+
+ ++idx;
+ }
+
+ mips_elf64_swap_reloc_out (abfd, &int_rel, ext_rel);
+ }
+
+ BFD_ASSERT (ext_rel - (Elf64_Mips_External_Rel *) rel_hdr->contents
+ == *count);
+}
+
+static void
+mips_elf64_write_rela (abfd, sec, rela_hdr, count, data)
+ bfd *abfd;
+ asection *sec;
+ Elf_Internal_Shdr *rela_hdr;
+ int *count;
+ PTR data;
+{
+ boolean *failedp = (boolean *) data;
+ Elf64_Mips_External_Rela *ext_rela;
+ unsigned int idx;
+ asymbol *last_sym = 0;
+ int last_sym_idx = 0;
+
+ rela_hdr->sh_size = (bfd_vma)(rela_hdr->sh_entsize * *count);
+ rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
+ if (rela_hdr->contents == NULL)
+ {
+ *failedp = true;
+ return;
+ }
+
+ ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
+ for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
+ {
+ arelent *ptr;
+ Elf64_Mips_Internal_Rela int_rela;
+ asymbol *sym;
+ int n;
+ unsigned int i;
+
+ ptr = sec->orelocation[idx];
+
+ /* The address of an ELF reloc is section relative for an object
+ file, and absolute for an executable file or shared library.
+ The address of a BFD reloc is always section relative. */
+ if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
+ int_rela.r_offset = ptr->address;
+ else
+ int_rela.r_offset = ptr->address + sec->vma;
+
+ sym = *ptr->sym_ptr_ptr;
+ if (sym == last_sym)
+ n = last_sym_idx;
+ else
+ {
+ last_sym = sym;
+ n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
+ if (n < 0)
+ {
+ *failedp = true;
+ return;
+ }
+ last_sym_idx = n;
+ }
+
+ int_rela.r_sym = n;
+ int_rela.r_addend = ptr->addend;
+ int_rela.r_ssym = RSS_UNDEF;
+
+ if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
+ && ! _bfd_elf_validate_reloc (abfd, ptr))
+ {
+ *failedp = true;
+ return;
+ }
+
+ int_rela.r_type = ptr->howto->type;
+ int_rela.r_type2 = (int) R_MIPS_NONE;
+ int_rela.r_type3 = (int) R_MIPS_NONE;
+
+ for (i = 0; i < 2; i++)
+ {
+ arelent *r;
+
+ if (idx + 1 >= sec->reloc_count)
+ break;
+ r = sec->orelocation[idx + 1];
+ if (r->address != ptr->address
+ || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
+ || (*r->sym_ptr_ptr)->value != 0)
+ break;
+
+ /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
+
+ if (i == 0)
+ int_rela.r_type2 = r->howto->type;
+ else
+ int_rela.r_type3 = r->howto->type;
+
+ ++idx;
+ }
+
+ mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
+ }
+
+ BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
+ == *count);
+}
+\f
+/* This structure is used to hold .got information when linking. It
+ is stored in the tdata field of the bfd_elf_section_data structure. */
+
+struct mips_elf64_got_info
+{
+ /* The global symbol in the GOT with the lowest index in the dynamic
+ symbol table. */
+ struct elf_link_hash_entry *global_gotsym;
+ /* The number of global .got entries. */
+ unsigned int global_gotno;
+ /* The number of local .got entries. */
+ unsigned int local_gotno;
+ /* The number of local .got entries we have used. */
+ unsigned int assigned_gotno;
+};
+
+/* The MIPS ELF64 linker needs additional information for each symbol in
+ the global hash table. */
+
+struct mips_elf64_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+
+ /* External symbol information. */
+ EXTR esym;
+
+ /* Number of R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 relocs against
+ this symbol. */
+ unsigned int possibly_dynamic_relocs;
+
+ /* If the R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 reloc is against
+ a readonly section. */
+ boolean readonly_reloc;
+
+ /* The index of the first dynamic relocation (in the .rel.dyn
+ section) against this symbol. */
+ unsigned int min_dyn_reloc_index;
+
+ /* We must not create a stub for a symbol that has relocations
+ related to taking the function's address, i.e. any but
+ R_MIPS_CALL*16 ones -- see "MIPS ABI Supplement, 3rd Edition",
+ p. 4-20. */
+ boolean no_fn_stub;
+
+ /* If there is a stub that 32 bit functions should use to call this
+ 16 bit function, this points to the section containing the stub. */
+ asection *fn_stub;
+
+ /* Whether we need the fn_stub; this is set if this symbol appears
+ in any relocs other than a 16 bit call. */
+ boolean need_fn_stub;
+
+ /* If there is a stub that 16 bit functions should use to call this
+ 32 bit function, this points to the section containing the stub. */
+ asection *call_stub;
+
+ /* This is like the call_stub field, but it is used if the function
+ being called returns a floating point value. */
+ asection *call_fp_stub;
+};
+\f
+ /* The mips16 compiler uses a couple of special sections to handle
+ floating point arguments.
+
+ Section names that look like .mips16.fn.FNNAME contain stubs that
+ copy floating point arguments from the fp regs to the gp regs and
+ then jump to FNNAME. If any 32 bit function calls FNNAME, the
+ call should be redirected to the stub instead. If no 32 bit
+ function calls FNNAME, the stub should be discarded. We need to
+ consider any reference to the function, not just a call, because
+ if the address of the function is taken we will need the stub,
+ since the address might be passed to a 32 bit function.
+
+ Section names that look like .mips16.call.FNNAME contain stubs
+ that copy floating point arguments from the gp regs to the fp
+ regs and then jump to FNNAME. If FNNAME is a 32 bit function,
+ then any 16 bit function that calls FNNAME should be redirected
+ to the stub instead. If FNNAME is not a 32 bit function, the
+ stub should be discarded.
+
+ .mips16.call.fp.FNNAME sections are similar, but contain stubs
+ which call FNNAME and then copy the return value from the fp regs
+ to the gp regs. These stubs store the return value in $18 while
+ calling FNNAME; any function which might call one of these stubs
+ must arrange to save $18 around the call. (This case is not
+ needed for 32 bit functions that call 16 bit functions, because
+ 16 bit functions always return floating point values in both
+ $f0/$f1 and $2/$3.)
+
+ Note that in all cases FNNAME might be defined statically.
+ Therefore, FNNAME is not used literally. Instead, the relocation
+ information will indicate which symbol the section is for.
+
+ We record any stubs that we find in the symbol table. */
+
+#define FN_STUB ".mips16.fn."
+#define CALL_STUB ".mips16.call."
+#define CALL_FP_STUB ".mips16.call.fp."
+
+/* MIPS ELF64 linker hash table. */
+
+struct mips_elf64_link_hash_table
+{
+ struct elf_link_hash_table root;
+ /* This is set if we see any mips16 stub sections. */
+ boolean mips16_stubs_seen;
+};
+
+/* Look up an entry in a MIPS ELF64 linker hash table. */
+
+#define mips_elf64_link_hash_lookup(table, string, create, copy, follow) \
+ ((struct mips_elf64_link_hash_entry *) \
+ elf_link_hash_lookup (&(table)->root, (string), (create), \
+ (copy), (follow)))
+
+/* Traverse a MIPS ELF linker hash table. */
+
+#define mips_elf64_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the MIPS ELF64 linker hash table from a link_info structure. */
+
+#define mips_elf64_hash_table(p) \
+ ((struct mips_elf64_link_hash_table *) ((p)->hash))
+
+/* Create an entry in a MIPS ELF64 linker hash table. */
+
+static struct bfd_hash_entry *
+mips_elf64_link_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct mips_elf64_link_hash_entry *ret =
+ (struct mips_elf64_link_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == (struct mips_elf64_link_hash_entry *) NULL)
+ ret = ((struct mips_elf64_link_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct mips_elf64_link_hash_entry)));
+ if (ret == (struct mips_elf64_link_hash_entry *) NULL)
+ return (struct bfd_hash_entry *) ret;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct mips_elf64_link_hash_entry *)
+ _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
+ table, string));
+ if (ret != (struct mips_elf64_link_hash_entry *) NULL)
+ {
+ /* Set local fields. */
+ memset (&ret->esym, 0, sizeof (EXTR));
+ /* We use -2 as a marker to indicate that the information has
+ not been set. -1 means there is no associated ifd. */
+ ret->esym.ifd = -2;
+ ret->possibly_dynamic_relocs = 0;
+ ret->readonly_reloc = false;
+ ret->min_dyn_reloc_index = 0;
+ ret->no_fn_stub = false;
+ ret->fn_stub = NULL;
+ ret->need_fn_stub = false;
+ ret->call_stub = NULL;
+ ret->call_fp_stub = NULL;
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Create a MIPS ELF64 linker hash table. */
+
+struct bfd_link_hash_table *
+mips_elf64_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct mips_elf64_link_hash_table *ret;
+
+ ret = ((struct mips_elf64_link_hash_table *)
+ bfd_alloc (abfd, sizeof (struct mips_elf64_link_hash_table)));
+ if (ret == (struct mips_elf64_link_hash_table *) NULL)
+ return NULL;
+
+ if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
+ mips_elf64_link_hash_newfunc))
+ {
+ bfd_release (abfd, ret);
+ return NULL;
+ }
+
+ ret->mips16_stubs_seen = false;
+
+ return &ret->root.root;
+}
+\f
+/* Returns the offset for the entry at the INDEXth position
+ in the GOT. */
+
+static bfd_vma
+mips_elf64_got_offset_from_index (dynobj, output_bfd, index)
+ bfd *dynobj;
+ bfd *output_bfd;
+ bfd_vma index;
+{
+ asection *sgot;
+ bfd_vma gp;
+
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ gp = _bfd_get_gp_value (output_bfd);
+ return (sgot->output_section->vma + sgot->output_offset + index -
+ gp);
+}
+
+/* Returns the GOT information associated with the link indicated by
+ INFO. If SGOTP is non-NULL, it is filled in with the GOT
+ section. */
+
+static struct mips_elf64_got_info *
+_mips_elf64_got_info (abfd, sgotp)
+ bfd *abfd;
+ asection **sgotp;
+{
+ asection *sgot;
+ struct mips_elf64_got_info *g;
+
+ sgot = bfd_get_section_by_name (abfd, ".got");
+ BFD_ASSERT (sgot != NULL);
+ BFD_ASSERT (elf_section_data (sgot) != NULL);
+ g = (struct mips_elf64_got_info *) elf_section_data (sgot)->tdata;
+ BFD_ASSERT (g != NULL);
+
+ if (sgotp)
+ *sgotp = sgot;
+ return g;
+}
+
+/* Sign-extend VALUE, which has the indicated number of BITS. */
+
+static bfd_vma
+mips_elf64_sign_extend (value, bits)
+ bfd_vma value;
+ int bits;
+{
+ if (value & ((bfd_vma)1 << (bits - 1)))
+ /* VALUE is negative. */
+ value |= ((bfd_vma) - 1) << bits;
+
+ return value;
+}
+
+/* Return non-zero if the indicated VALUE has overflowed the maximum
+ range expressable by a signed number with the indicated number of
+ BITS. */
+
+static boolean
+mips_elf64_overflow_p (value, bits)
+ bfd_vma value;
+ int bits;
+{
+ bfd_signed_vma svalue = (bfd_signed_vma) value;
+
+ if (svalue > (1 << (bits - 1)) - 1)
+ /* The value is too big. */
+ return true;
+ else if (svalue < -(1 << (bits - 1)))
+ /* The value is too small. */
+ return true;
+
+ /* All is well. */
+ return false;
+}
+\f
+/* Returns the GOT index for the global symbol indicated by H. */
+
+static bfd_vma
+mips_elf64_global_got_index (abfd, h)
+ bfd *abfd;
+ struct elf_link_hash_entry *h;
+{
+ bfd_vma index;
+ asection *sgot;
+ struct mips_elf64_got_info *g;
+
+ g = _mips_elf64_got_info (abfd, &sgot);
+
+ /* Once we determine the global GOT entry with the lowest dynamic
+ symbol table index, we must put all dynamic symbols with greater
+ indices into the GOT. That makes it easy to calculate the GOT
+ offset. */
+ BFD_ASSERT (h->dynindx >= g->global_gotsym->dynindx);
+ index = ((h->dynindx - g->global_gotsym->dynindx + g->local_gotno)
+ * (get_elf_backend_data (abfd)->s->arch_size / 8));
+ BFD_ASSERT (index < sgot->_raw_size);
+
+ return index;
+}
+
+struct mips_elf64_hash_sort_data
+{
+ /* The symbol in the global GOT with the lowest dynamic symbol table
+ index. */
+ struct elf_link_hash_entry *low;
+ /* The least dynamic symbol table index corresponding to a symbol
+ with a GOT entry. */
+ long min_got_dynindx;
+ /* The greatest dynamic symbol table index not corresponding to a
+ symbol without a GOT entry. */
+ long max_non_got_dynindx;
+};
+
+/* If H needs a GOT entry, assign it the highest available dynamic
+ index. Otherwise, assign it the lowest available dynamic
+ index. */
+
+static boolean
+mips_elf64_sort_hash_table_f (h, data)
+ struct mips_elf64_link_hash_entry *h;
+ PTR data;
+{
+ struct mips_elf64_hash_sort_data *hsd
+ = (struct mips_elf64_hash_sort_data *) data;
+
+ /* Symbols without dynamic symbol table entries aren't interesting
+ at all. */
+ if (h->root.dynindx == -1)
+ return true;
+
+ if (h->root.got.offset != 1)
+ h->root.dynindx = hsd->max_non_got_dynindx++;
+ else
+ {
+ h->root.dynindx = --hsd->min_got_dynindx;
+ hsd->low = (struct elf_link_hash_entry *) h;
+ }
+
+ return true;
+}
+
+/* Sort the dynamic symbol table so that symbols that need GOT entries
+ appear towards the end. This reduces the amount of GOT space
+ required. MAX_LOCAL is used to set the number of local symbols
+ known to be in the dynamic symbol table. During
+ mips_elf64_size_dynamic_sections, this value is 1. Afterward, the
+ section symbols are added and the count is higher. */
+
+static boolean
+mips_elf64_sort_hash_table (info, max_local)
+ struct bfd_link_info *info;
+ unsigned long max_local;
+{
+ struct mips_elf64_hash_sort_data hsd;
+ struct mips_elf64_got_info *g;
+ bfd *dynobj;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ hsd.low = NULL;
+ hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount;
+ hsd.max_non_got_dynindx = max_local;
+ mips_elf64_link_hash_traverse (((struct mips_elf64_link_hash_table *)
+ elf_hash_table (info)),
+ mips_elf64_sort_hash_table_f,
+ &hsd);
+
+ /* There shoud have been enough room in the symbol table to
+ accomodate both the GOT and non-GOT symbols. */
+ BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
+
+ /* Now we know which dynamic symbol has the lowest dynamic symbol
+ table index in the GOT. */
+ g = _mips_elf64_got_info (dynobj, NULL);
+ g->global_gotsym = hsd.low;
+
+ return true;
+}
+\f
+#if 0
+/* Swap in an MSYM entry. */
+
+static void
+mips_elf64_swap_msym_in (abfd, ex, in)
+ bfd *abfd;
+ const Elf32_External_Msym *ex;
+ Elf32_Internal_Msym *in;
+{
+ in->ms_hash_value = H_GET_32 (abfd, ex->ms_hash_value);
+ in->ms_info = H_GET_32 (abfd, ex->ms_info);
+}
+#endif
+/* Swap out an MSYM entry. */
+
+static void
+mips_elf64_swap_msym_out (abfd, in, ex)
+ bfd *abfd;
+ const Elf32_Internal_Msym *in;
+ Elf32_External_Msym *ex;
+{
+ H_PUT_32 (abfd, in->ms_hash_value, ex->ms_hash_value);
+ H_PUT_32 (abfd, in->ms_info, ex->ms_info);
+}
+\f
+/* Create a local GOT entry for VALUE. Return the index of the entry,
+ or -1 if it could not be created. */
+
+static bfd_vma
+mips_elf64_create_local_got_entry (abfd, g, sgot, value)
+ bfd *abfd;
+ struct mips_elf64_got_info *g;
+ asection *sgot;
+ bfd_vma value;
+{
+ CONST bfd_vma got_size = get_elf_backend_data (abfd)->s->arch_size / 8;
+
+ if (g->assigned_gotno >= g->local_gotno)
+ {
+ /* We didn't allocate enough space in the GOT. */
+ (*_bfd_error_handler)
+ (_("not enough GOT space for local GOT entries"));
+ bfd_set_error (bfd_error_bad_value);
+ return (bfd_vma) -1;
+ }
+
+ bfd_put_64 (abfd, value, (sgot->contents + got_size * g->assigned_gotno));
+ return got_size * g->assigned_gotno++;
+}
+
+/* Returns the GOT offset at which the indicated address can be found.
+ If there is not yet a GOT entry for this value, create one. Returns
+ -1 if no satisfactory GOT offset can be found. */
+
+static bfd_vma
+mips_elf64_local_got_index (abfd, info, value)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ bfd_vma value;
+{
+ CONST bfd_vma got_size = get_elf_backend_data (abfd)->s->arch_size / 8;
+ asection *sgot;
+ struct mips_elf64_got_info *g;
+ bfd_byte *entry;
+
+ g = _mips_elf64_got_info (elf_hash_table (info)->dynobj, &sgot);
+
+ /* Look to see if we already have an appropriate entry. */
+ for (entry = (sgot->contents + got_size * MIPS_RESERVED_GOTNO);
+ entry != sgot->contents + got_size * g->assigned_gotno;
+ entry += got_size)
+ {
+ bfd_vma address = bfd_get_64 (abfd, entry);
+ if (address == value)
+ return entry - sgot->contents;
+ }
+
+ return mips_elf64_create_local_got_entry (abfd, g, sgot, value);
+}
+
+/* Find a GOT entry that is within 32KB of the VALUE. These entries
+ are supposed to be placed at small offsets in the GOT, i.e.,
+ within 32KB of GP. Return the index into the GOT for this page,
+ and store the offset from this entry to the desired address in
+ OFFSETP, if it is non-NULL. */
+
+static bfd_vma
+mips_elf64_got_page (abfd, info, value, offsetp)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ bfd_vma value;
+ bfd_vma *offsetp;
+{
+ CONST bfd_vma got_size = get_elf_backend_data (abfd)->s->arch_size / 8;
+ asection *sgot;
+ struct mips_elf64_got_info *g;
+ bfd_byte *entry;
+ bfd_byte *last_entry;
+ bfd_vma index = 0;
+ bfd_vma address;
+
+ g = _mips_elf64_got_info (elf_hash_table (info)->dynobj, &sgot);
+
+ /* Look to see if we aleady have an appropriate entry. */
+ last_entry = sgot->contents + got_size * g->assigned_gotno;
+ for (entry = (sgot->contents + got_size * MIPS_RESERVED_GOTNO);
+ entry != last_entry;
+ entry += got_size)
+ {
+ address = bfd_get_64 (abfd, entry);
+
+ if (!mips_elf64_overflow_p (value - address, 16))
+ {
+ /* This entry will serve as the page pointer. We can add a
+ 16-bit number to it to get the actual address. */
+ index = entry - sgot->contents;
+ break;
+ }
+ }
+
+ /* If we didn't have an appropriate entry, we create one now. */
+ if (entry == last_entry)
+ index = mips_elf64_create_local_got_entry (abfd, g, sgot, value);
+
+ if (offsetp)
+ {
+ address = bfd_get_64 (abfd, entry);
+ *offsetp = value - address;
+ }
+
+ return index;
+}
+
+/* Find a GOT entry whose higher-order 16 bits are the same as those
+ for value. Return the index into the GOT for this entry. */
+
+static bfd_vma
+mips_elf64_got16_entry (abfd, info, value, external)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ bfd_vma value;
+ boolean external;
+{
+ CONST bfd_vma got_size = get_elf_backend_data (abfd)->s->arch_size / 8;
+ asection *sgot;
+ struct mips_elf64_got_info *g;
+ bfd_byte *entry;
+ bfd_byte *last_entry;
+ bfd_vma index = 0;
+ bfd_vma address;
+
+ if (! external)
+ {
+ /* Although the ABI says that it is "the high-order 16 bits" that we
+ want, it is really the %high value. The complete value is
+ calculated with a `addiu' of a LO16 relocation, just as with a
+ HI16/LO16 pair. */
+ value = mips_elf64_high (value) << 16;
+ }
+
+ g = _mips_elf64_got_info (elf_hash_table (info)->dynobj, &sgot);
+
+ /* Look to see if we already have an appropriate entry. */
+ last_entry = sgot->contents + got_size * g->assigned_gotno;
+ for (entry = (sgot->contents + got_size * MIPS_RESERVED_GOTNO);
+ entry != last_entry;
+ entry += got_size)
+ {
+ address = bfd_get_64 (abfd, entry);
+ if (address == value)
+ {
+ /* This entry has the right high-order 16 bits, and the low-order
+ 16 bits are set to zero. */
+ index = entry - sgot->contents;
+ break;
+ }
+ }
+
+ /* If we didn't have an appropriate entry, we create one now. */
+ if (entry == last_entry)
+ index = mips_elf64_create_local_got_entry (abfd, g, sgot, value);
+
+ return index;
+}
+\f
+/* Return whether a relocation is against a local symbol. */
+
+static boolean
+mips_elf64_local_relocation_p (input_bfd, relocation, local_sections,
+ check_forced)
+ bfd *input_bfd;
+ const Elf_Internal_Rela *relocation;
+ asection **local_sections;
+ boolean check_forced;
+{
+ unsigned long r_symndx;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct mips_elf64_link_hash_entry* h;
+ size_t extsymoff;
+
+ r_symndx = ELF64_R_SYM (relocation->r_info);
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
+
+ if (r_symndx < extsymoff)
+ return true;
+ if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL)
+ return true;
+
+ if (check_forced)
+ {
+ /* Look up the hash table to check whether the symbol
+ was forced local. */
+ h = (struct mips_elf64_link_hash_entry *)
+ elf_sym_hashes (input_bfd) [r_symndx - extsymoff];
+ /* Find the real hash-table entry for this symbol. */
+ while (h->root.root.type == bfd_link_hash_indirect
+ || h->root.root.type == bfd_link_hash_warning)
+ h = (struct mips_elf64_link_hash_entry *) h->root.root.u.i.link;
+ if ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
+ return true;
+ }
+
+ return false;
+}
+\f
+/* Returns the first relocation of type r_type found, beginning with
+ RELOCATION. RELEND is one-past-the-end of the relocation table. */
+
+static const Elf_Internal_Rela *
+mips_elf64_next_relocation (r_type, relocation, relend)
+ unsigned int r_type;
+ const Elf_Internal_Rela *relocation;
+ const Elf_Internal_Rela *relend;
+{
+ /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
+ immediately following. However, for the IRIX6 ABI, the next
+ relocation may be a composed relocation consisting of several
+ relocations for the same address. In that case, the R_MIPS_LO16
+ relocation may occur as one of these. We permit a similar
+ extension in general, as that is useful for GCC. */
+ while (relocation < relend)
+ {
+ if (ELF64_MIPS_R_TYPE (relocation->r_info) == r_type)
+ return relocation;
+
+ ++relocation;
+ }
+
+ /* We didn't find it. */
+ bfd_set_error (bfd_error_bad_value);
+ return NULL;
+}
+
+/* Create a rel.dyn relocation for the dynamic linker to resolve. REL
+ is the original relocation, which is now being transformed into a
+ dynamic relocation. The ADDENDP is adjusted if necessary; the
+ caller should store the result in place of the original addend. */
+
+static boolean
+mips_elf64_create_dynamic_relocation (output_bfd, info, rel, h, sec,
+ symbol, addendp, input_section)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ const Elf_Internal_Rela *rel;
+ struct mips_elf64_link_hash_entry *h;
+ asection *sec;
+ bfd_vma symbol;
+ bfd_vma *addendp;
+ asection *input_section;
+{
+ Elf_Internal_Rel outrel[3];
+ boolean skip;
+ asection *sreloc;
+ bfd *dynobj;
+ int r_type;
+
+ r_type = ELF64_MIPS_R_TYPE (rel->r_info);
+ dynobj = elf_hash_table (info)->dynobj;
+ sreloc = bfd_get_section_by_name (dynobj, ".rel.dyn");
+ BFD_ASSERT (sreloc != NULL);
+ BFD_ASSERT (sreloc->contents != NULL);
+ BFD_ASSERT ((sreloc->reloc_count
+ * get_elf_backend_data (output_bfd)->s->sizeof_rel)
+ < sreloc->_raw_size);
+
+ skip = false;
+ outrel[0].r_offset = _bfd_elf_section_offset (output_bfd, info,
+ input_section,
+ rel[0].r_offset);
+
+ /* We begin by assuming that the offset for the dynamic relocation
+ is the same as for the original relocation. We'll adjust this
+ later to reflect the correct output offsets. */
+ if (elf_section_data (input_section)->sec_info_type != ELF_INFO_TYPE_STABS)
+ {
+ outrel[1].r_offset = rel[1].r_offset;
+ outrel[2].r_offset = rel[2].r_offset;
+ }
+ else
+ {
+ /* Except that in a stab section things are more complex.
+ Because we compress stab information, the offset given in the
+ relocation may not be the one we want; we must let the stabs
+ machinery tell us the offset. */
+ outrel[1].r_offset = outrel[0].r_offset;
+ outrel[2].r_offset = outrel[0].r_offset;
+ /* If we didn't need the relocation at all, this value will be
+ -1. */
+ if (outrel[0].r_offset == (bfd_vma) -1)
+ skip = true;
+ }
+
+ /* If we've decided to skip this relocation, just output an empty
+ record. Note that R_MIPS_NONE == 0, so that this call to memset
+ is a way of setting R_TYPE to R_MIPS_NONE. */
+ if (skip)
+ memset (outrel, 0, sizeof (Elf_Internal_Rel) * 3);
+ else
+ {
+ long indx;
+ bfd_vma section_offset;
+
+ /* We must now calculate the dynamic symbol table index to use
+ in the relocation. */
+ if (h != NULL
+ && (! info->symbolic || (h->root.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ {
+ indx = h->root.dynindx;
+ /* h->root.dynindx may be -1 if this symbol was marked to
+ become local. */
+ if (indx == -1)
+ indx = 0;
+ }
+ else
+ {
+ if (sec != NULL && bfd_is_abs_section (sec))
+ indx = 0;
+ else if (sec == NULL || sec->owner == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ else
+ {
+ indx = elf_section_data (sec->output_section)->dynindx;
+ if (indx == 0)
+ abort ();
+ }
+
+ /* Figure out how far the target of the relocation is from
+ the beginning of its section. */
+ section_offset = symbol - sec->output_section->vma;
+ /* The relocation we're building is section-relative.
+ Therefore, the original addend must be adjusted by the
+ section offset. */
+ *addendp += section_offset;
+ /* Now, the relocation is just against the section. */
+ symbol = sec->output_section->vma;
+ }
+
+ /* If the relocation was previously an absolute relocation and
+ this symbol will not be referred to by the relocation, we must
+ adjust it by the value we give it in the dynamic symbol table.
+ Otherwise leave the job up to the dynamic linker. */
+ if (!indx && r_type != R_MIPS_REL32)
+ *addendp += symbol;
+
+ /* The relocation is always an REL32 relocation because we don't
+ know where the shared library will wind up at load-time. */
+ outrel[0].r_info = ELF64_R_INFO (indx, R_MIPS_REL32);
+
+ /* Adjust the output offset of the relocation to reference the
+ correct location in the output file. */
+ outrel[0].r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+ outrel[1].r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+ outrel[2].r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+ }
+
+ /* Put the relocation back out. */
+ mips_elf64_be_swap_reloc_out (output_bfd, outrel,
+ (sreloc->contents
+ + sreloc->reloc_count
+ * sizeof (Elf64_Mips_External_Rel)));
+
+ /* Record the index of the first relocation referencing H. This
+ information is later emitted in the .msym section. */
+ if (h != NULL
+ && (h->min_dyn_reloc_index == 0
+ || sreloc->reloc_count < h->min_dyn_reloc_index))
+ h->min_dyn_reloc_index = sreloc->reloc_count;
+
+ /* We've now added another relocation. */
+ ++sreloc->reloc_count;
+
+ /* Make sure the output section is writable. The dynamic linker
+ will be writing to it. */
+ elf_section_data (input_section->output_section)->this_hdr.sh_flags
+ |= SHF_WRITE;
+
+ return true;
+}
+
+/* Calculate the value produced by the RELOCATION (which comes from
+ the INPUT_BFD). The ADDEND is the addend to use for this
+ RELOCATION; RELOCATION->R_ADDEND is ignored.
+
+ The result of the relocation calculation is stored in VALUEP.
+ REQUIRE_JALXP indicates whether or not the opcode used with this
+ relocation must be JALX.
+
+ This function returns bfd_reloc_continue if the caller need take no
+ further action regarding this relocation, bfd_reloc_notsupported if
+ something goes dramatically wrong, bfd_reloc_overflow if an
+ overflow occurs, and bfd_reloc_ok to indicate success. */
+
+static bfd_reloc_status_type
+mips_elf64_calculate_relocation (abfd, input_bfd, input_section, info,
+ relocation, addend, howto, local_syms,
+ local_sections, valuep, namep, require_jalxp)
+ bfd *abfd;
+ bfd *input_bfd;
+ asection *input_section;
+ struct bfd_link_info *info;
+ const Elf_Internal_Rela *relocation;
+ bfd_vma addend;
+ reloc_howto_type *howto;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
+ bfd_vma *valuep;
+ const char **namep;
+ boolean *require_jalxp;
+{
+ /* The eventual value we will return. */
+ bfd_vma value;
+ /* The address of the symbol against which the relocation is
+ occurring. */
+ bfd_vma symbol = 0;
+ /* The final GP value to be used for the relocatable, executable, or
+ shared object file being produced. */
+ bfd_vma gp = (bfd_vma) - 1;
+ /* The place (section offset or address) of the storage unit being
+ relocated. */
+ bfd_vma p;
+ /* The value of GP used to create the relocatable object. */
+ bfd_vma gp0 = (bfd_vma) - 1;
+ /* The offset into the global offset table at which the address of
+ the relocation entry symbol, adjusted by the addend, resides
+ during execution. */
+ bfd_vma g = (bfd_vma) - 1;
+ /* The section in which the symbol referenced by the relocation is
+ located. */
+ asection *sec = NULL;
+ struct mips_elf64_link_hash_entry* h = NULL;
+ /* True if the symbol referred to by this relocation is a local
+ symbol. */
+ boolean local_p;
+ Elf_Internal_Shdr *symtab_hdr;
+ size_t extsymoff;
+ unsigned long r_symndx;
+ int r_type;
+ /* True if overflow occurred during the calculation of the
+ relocation value. */
+ boolean overflowed_p;
+ /* True if this relocation refers to a MIPS16 function. */
+ boolean target_is_16_bit_code_p = false;
+
+ /* Parse the relocation. */
+ r_symndx = ELF64_R_SYM (relocation->r_info);
+ r_type = ELF64_MIPS_R_TYPE (relocation->r_info);
+ p = (input_section->output_section->vma
+ + input_section->output_offset
+ + relocation->r_offset);
+
+ /* Assume that there will be no overflow. */
+ overflowed_p = false;
+
+ /* Figure out whether or not the symbol is local, and get the offset
+ used in the array of hash table entries. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ local_p = mips_elf64_local_relocation_p (input_bfd, relocation,
+ local_sections, false);
+ if (! elf_bad_symtab (input_bfd))
+ extsymoff = symtab_hdr->sh_info;
+ else
+ {
+ /* The symbol table does not follow the rule that local symbols
+ must come before globals. */
+ extsymoff = 0;
+ }
+
+ /* Figure out the value of the symbol. */
+ if (local_p)
+ {
+ Elf_Internal_Sym *sym;
+
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+
+ symbol = sec->output_section->vma + sec->output_offset;
+ if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
+ symbol += sym->st_value;
+
+ /* MIPS16 text labels should be treated as odd. */
+ if (sym->st_other == STO_MIPS16)
+ ++symbol;
+
+ /* Record the name of this symbol, for our caller. */
+ *namep = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (*namep == '\0')
+ *namep = bfd_section_name (input_bfd, sec);
+
+ target_is_16_bit_code_p = (sym->st_other == STO_MIPS16);
+ }
+ else
+ {
+ /* For global symbols we look up the symbol in the hash-table. */
+ h = ((struct mips_elf64_link_hash_entry *)
+ elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
+ /* Find the real hash-table entry for this symbol. */
+ while (h->root.root.type == bfd_link_hash_indirect
+ || h->root.root.type == bfd_link_hash_warning)
+ h = (struct mips_elf64_link_hash_entry *) h->root.root.u.i.link;
+
+ /* Record the name of this symbol, for our caller. */
+ *namep = h->root.root.root.string;
+
+ /* If this symbol is defined, calculate its address. */
+ if ((h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ && h->root.root.u.def.section)
+ {
+ sec = h->root.root.u.def.section;
+ if (sec->output_section)
+ symbol = (h->root.root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ else
+ symbol = h->root.root.u.def.value;
+ }
+ else if (h->root.root.type == bfd_link_hash_undefweak)
+ /* We allow relocations against undefined weak symbols, giving
+ it the value zero, so that you can undefined weak functions
+ and check to see if they exist by looking at their
+ addresses. */
+ symbol = 0;
+ else if (info->shared
+ && (!info->symbolic || info->allow_shlib_undefined)
+ && !info->no_undefined
+ && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
+ symbol = 0;
+ else if (strcmp (h->root.root.root.string, "_DYNAMIC_LINK") == 0 ||
+ strcmp (h->root.root.root.string, "_DYNAMIC_LINKING") == 0)
+ {
+ /* If this is a dynamic link, we should have created a
+ _DYNAMIC_LINK symbol or _DYNAMIC_LINKING(for normal mips) symbol
+ in in mips_elf64_create_dynamic_sections.
+ Otherwise, we should define the symbol with a value of 0.
+ FIXME: It should probably get into the symbol table
+ somehow as well. */
+ BFD_ASSERT (! info->shared);
+ BFD_ASSERT (bfd_get_section_by_name (abfd, ".dynamic") == NULL);
+ symbol = 0;
+ }
+ else
+ {
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, h->root.root.root.string, input_bfd,
+ input_section, relocation->r_offset,
+ (!info->shared || info->no_undefined
+ || ELF_ST_VISIBILITY (h->root.other)))))
+ return bfd_reloc_undefined;
+ symbol = 0;
+ }
+
+ target_is_16_bit_code_p = (h->root.other == STO_MIPS16);
+ }
+
+ /* If this is a 64-bit call to a 16-bit function with a stub, we
+ need to redirect the call to the stub, unless we're already *in*
+ a stub. */
+ if (r_type != R_MIPS16_26 && !info->relocateable
+ && ((h != NULL && h->fn_stub != NULL)
+ || (local_p && elf_tdata (input_bfd)->local_stubs != NULL
+ && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL))
+ && !mips_elf64_stub_section_p (input_bfd, input_section))
+ {
+ /* This is a 64-bit call to a 16-bit function. We should
+ have already noticed that we were going to need the
+ stub. */
+ if (local_p)
+ sec = elf_tdata (input_bfd)->local_stubs[r_symndx];
+ else
+ {
+ BFD_ASSERT (h->need_fn_stub);
+ sec = h->fn_stub;
+ }
+
+ symbol = sec->output_section->vma + sec->output_offset;
+ }
+ /* If this is a 16-bit call to a 64-bit function with a stub, we
+ need to redirect the call to the stub. */
+ else if (r_type == R_MIPS16_26 && !info->relocateable
+ && h != NULL
+ && (h->call_stub != NULL || h->call_fp_stub != NULL)
+ && !target_is_16_bit_code_p)
+ {
+ /* If both call_stub and call_fp_stub are defined, we can figure
+ out which one to use by seeing which one appears in the input
+ file. */
+ if (h->call_stub != NULL && h->call_fp_stub != NULL)
+ {
+ asection *o;
+
+ sec = NULL;
+ for (o = input_bfd->sections; o != NULL; o = o->next)
+ {
+ if (strncmp (bfd_get_section_name (input_bfd, o),
+ CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
+ {
+ sec = h->call_fp_stub;
+ break;
+ }
+ }
+ if (sec == NULL)
+ sec = h->call_stub;
+ }
+ else if (h->call_stub != NULL)
+ sec = h->call_stub;
+ else
+ sec = h->call_fp_stub;
+
+ BFD_ASSERT (sec->_raw_size > 0);
+ symbol = sec->output_section->vma + sec->output_offset;
+ }
+
+ /* Calls from 16-bit code to 32-bit code and vice versa require the
+ special jalx instruction. */
+ *require_jalxp = (!info->relocateable
+ && ((r_type == R_MIPS16_26) != target_is_16_bit_code_p));
+
+ local_p = mips_elf64_local_relocation_p (input_bfd, relocation,
+ local_sections, true);
+
+ /* If we haven't already determined the GOT offset, or the GP value,
+ and we're going to need it, get it now. */
+ switch (r_type)
+ {
+ case R_MIPS_CALL16:
+ case R_MIPS_GOT16:
+ case R_MIPS_GOT_DISP:
+ case R_MIPS_GOT_HI16:
+ case R_MIPS_CALL_HI16:
+ case R_MIPS_GOT_LO16:
+ case R_MIPS_CALL_LO16:
+ /* Find the index into the GOT where this value is located. */
+ if (!local_p)
+ {
+ BFD_ASSERT (addend == 0);
+ g = mips_elf64_global_got_index (elf_hash_table (info)->dynobj,
+ (struct elf_link_hash_entry*) h);
+ if (! elf_hash_table(info)->dynamic_sections_created
+ || (info->shared
+ && (info->symbolic || h->root.dynindx == -1)
+ && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ {
+ /* This is a static link or a -Bsymbolic link. The
+ symbol is defined locally, or was forced to be local.
+ We must initialize this entry in the GOT. */
+ bfd *tmpbfd = elf_hash_table (info)->dynobj;
+
+ asection *sgot = bfd_get_section_by_name (tmpbfd, ".got");
+ bfd_put_64 (tmpbfd, symbol + addend, sgot->contents + g);
+ }
+ }
+ else if (r_type == R_MIPS_GOT16 || r_type == R_MIPS_CALL16)
+ /* There's no need to create a local GOT entry here; the
+ calculation for a local GOT16 entry does not involve G. */
+ break;
+ else
+ {
+ g = mips_elf64_local_got_index (abfd, info, symbol + addend);
+ if (g == (bfd_vma) -1)
+ return false;
+ }
+
+ /* Convert GOT indices to actual offsets. */
+ g = mips_elf64_got_offset_from_index (elf_hash_table (info)->dynobj,
+ abfd, g);
+ break;
+
+ case R_MIPS_HI16:
+ case R_MIPS_LO16:
+ case R_MIPS_GPREL16:
+ case R_MIPS_GPREL32:
+ case R_MIPS_LITERAL:
+ gp0 = _bfd_get_gp_value (input_bfd);
+ gp = _bfd_get_gp_value (abfd);
+ break;
+
+ default:
+ break;
+ }
+
+ /* Figure out what kind of relocation is being performed. */
+ switch (r_type)
+ {
+ case R_MIPS_NONE:
+ return bfd_reloc_continue;
+
+ case R_MIPS_16:
+ value = symbol + mips_elf64_sign_extend (addend, 16);
+ overflowed_p = mips_elf64_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_32:
+ case R_MIPS_REL32:
+ case R_MIPS_64:
+ if ((info->shared
+ || (elf_hash_table (info)->dynamic_sections_created
+ && h != NULL
+ && ((h->root.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_DYNAMIC) != 0)
+ && ((h->root.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)))
+ && r_symndx != 0
+ && (input_section->flags & SEC_ALLOC) != 0)
+ {
+ /* If we're creating a shared library, or this relocation is
+ against a symbol in a shared library, then we can't know
+ where the symbol will end up. So, we create a relocation
+ record in the output, and leave the job up to the dynamic
+ linker. */
+ value = addend;
+ if (!mips_elf64_create_dynamic_relocation (abfd, info, relocation,
+ h, sec, symbol, &value,
+ input_section))
+ return false;
+ }
+ else
+ {
+ if (r_type != R_MIPS_REL32)
+ value = symbol + addend;
+ else
+ value = addend;
+ }
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PC32:
+ case R_MIPS_PC64:
+ case R_MIPS_GNU_REL_LO16:
+ value = symbol + addend - p;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_GNU_REL16_S2:
+ value = symbol + mips_elf64_sign_extend (addend << 2, 18) - p;
+ overflowed_p = mips_elf64_overflow_p (value, 18);
+ value = (value >> 2) & howto->dst_mask;
+ break;
+
+ case R_MIPS_GNU_REL_HI16:
+ value = mips_elf64_high (addend + symbol - p);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS16_26:
+ /* The calculation for R_MIPS16_26 is just the same as for an
+ R_MIPS_26. It's only the storage of the relocated field into
+ the output file that's different. That's handled in
+ mips_elf_perform_relocation. So, we just fall through to the
+ R_MIPS_26 case here. */
+ case R_MIPS_26:
+ if (local_p)
+ value = (((addend << 2) | ((p + 4) & 0xf0000000)) + symbol) >> 2;
+ else
+ value = (mips_elf64_sign_extend (addend << 2, 28) + symbol) >> 2;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_HI16:
+ value = mips_elf64_high (addend + symbol);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_LO16:
+ value = (addend + symbol) & 0xffff;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_LITERAL:
+ /* Because we don't merge literal sections, we can handle this
+ just like R_MIPS_GPREL16. In the long run, we should merge
+ shared literals, and then we will need to additional work
+ here. */
+
+ /* Fall through. */
+
+ case R_MIPS_GPREL16:
+ if (local_p)
+ value = mips_elf64_sign_extend (addend, 16) + symbol + gp0 - gp;
+ else
+ value = mips_elf64_sign_extend (addend, 16) + symbol - gp;
+ overflowed_p = mips_elf64_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_PC16:
+ value = mips_elf64_sign_extend (addend, 16) + symbol - p;
+ overflowed_p = mips_elf64_overflow_p (value, 16);
+ value = (bfd_vma) ((bfd_signed_vma) value / 4);
+ break;
+
+ case R_MIPS_GOT16:
+ case R_MIPS_CALL16:
+ if (local_p)
+ {
+ boolean forced;
+
+ /* The special case is when the symbol is forced to be local. We
+ need the full address in the GOT since no R_MIPS_LO16 relocation
+ follows. */
+ forced = ! mips_elf64_local_relocation_p (input_bfd, relocation,
+ local_sections, false);
+ value = mips_elf64_got16_entry (abfd, info, symbol + addend, forced);
+ if (value == (bfd_vma) -1)
+ return false;
+ value
+ = mips_elf64_got_offset_from_index (elf_hash_table (info)->dynobj,
+ abfd,
+ value);
+ overflowed_p = mips_elf64_overflow_p (value, 16);
+ break;
+ }
+
+ /* Fall through. */
+
+ case R_MIPS_GOT_DISP:
+ value = g;
+ overflowed_p = mips_elf64_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_GPREL32:
+ value = (addend + symbol + gp0 - gp) & howto->dst_mask;
+ break;
+
+ case R_MIPS_GOT_HI16:
+ case R_MIPS_CALL_HI16:
+ /* We're allowed to handle these two relocations identically.
+ The dynamic linker is allowed to handle the CALL relocations
+ differently by creating a lazy evaluation stub. */
+ value = g;
+ value = mips_elf64_high (value);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_GOT_LO16:
+ case R_MIPS_CALL_LO16:
+ value = g & howto->dst_mask;
+ break;
+
+ case R_MIPS_GOT_PAGE:
+ value = mips_elf64_got_page (abfd, info, symbol + addend, NULL);
+ if (value == (bfd_vma) -1)
+ return false;
+ value = mips_elf64_got_offset_from_index (elf_hash_table (info)->dynobj,
+ abfd,
+ value);
+ overflowed_p = mips_elf64_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_GOT_OFST:
+ mips_elf64_got_page (abfd, info, symbol + addend, &value);
+ overflowed_p = mips_elf64_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_SUB:
+ value = symbol - addend;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_HIGHER:
+ value = mips_elf64_higher (addend + symbol);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_HIGHEST:
+ value = mips_elf64_highest (addend + symbol);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_SCN_DISP:
+ value = symbol + addend - sec->output_offset;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PJUMP:
+ case R_MIPS_JALR:
+ /* Both of these may be ignored. R_MIPS_JALR is an optimization
+ hint; we could improve performance by honoring that hint. */
+ return bfd_reloc_continue;
+
+ case R_MIPS_GNU_VTINHERIT:
+ case R_MIPS_GNU_VTENTRY:
+ /* We don't do anything with these at present. */
+ return bfd_reloc_continue;
+
+ default:
+ /* An unrecognized relocation type. */
+ return bfd_reloc_notsupported;
+ }
+
+ /* Store the VALUE for our caller. */
+ *valuep = value;
+ return overflowed_p ? bfd_reloc_overflow : bfd_reloc_ok;
+}
+\f
+/* Obtain the field relocated by RELOCATION. */
+
+static bfd_vma
+mips_elf64_obtain_contents (howto, relocation, input_bfd, contents)
+ reloc_howto_type *howto;
+ const Elf_Internal_Rela *relocation;
+ bfd *input_bfd;
+ bfd_byte *contents;
+{
+ bfd_byte *location = contents + relocation->r_offset;
+
+ /* Obtain the bytes. */
+ return bfd_get (8 * bfd_get_reloc_size (howto), input_bfd, location);
+}
+
+/* It has been determined that the result of the RELOCATION is the
+ VALUE. Use HOWTO to place VALUE into the output file at the
+ appropriate position. The SECTION is the section to which the
+ relocation applies. If REQUIRE_JALX is true, then the opcode used
+ for the relocation must be either JAL or JALX, and it is
+ unconditionally converted to JALX.
+
+ Returns false if anything goes wrong. */
+
+static boolean
+mips_elf64_perform_relocation (info, howto, relocation, value,
+ input_bfd, input_section,
+ contents, require_jalx)
+ struct bfd_link_info *info;
+ reloc_howto_type *howto;
+ const Elf_Internal_Rela *relocation;
+ bfd_vma value;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ boolean require_jalx;
+{
+ bfd_vma x;
+ bfd_byte *location;
+ int r_type = ELF32_R_TYPE (relocation->r_info);
+
+ /* Figure out where the relocation is occurring. */
+ location = contents + relocation->r_offset;
+
+ /* Obtain the current value. */
+ x = mips_elf64_obtain_contents (howto, relocation, input_bfd, contents);
+
+ /* Clear the field we are setting. */
+ x &= ~howto->dst_mask;
+
+ /* If this is the R_MIPS16_26 relocation, we must store the
+ value in a funny way. */
+ if (r_type == R_MIPS16_26)
+ {
+ /* R_MIPS16_26 is used for the mips16 jal and jalx instructions.
+ Most mips16 instructions are 16 bits, but these instructions
+ are 32 bits.
+
+ The format of these instructions is:
+
+ +--------------+--------------------------------+
+ ! JALX ! X! Imm 20:16 ! Imm 25:21 !
+ +--------------+--------------------------------+
+ ! Immediate 15:0 !
+ +-----------------------------------------------+
+
+ JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx.
+ Note that the immediate value in the first word is swapped.
+
+ When producing a relocateable object file, R_MIPS16_26 is
+ handled mostly like R_MIPS_26. In particular, the addend is
+ stored as a straight 26-bit value in a 32-bit instruction.
+ (gas makes life simpler for itself by never adjusting a
+ R_MIPS16_26 reloc to be against a section, so the addend is
+ always zero). However, the 32 bit instruction is stored as 2
+ 16-bit values, rather than a single 32-bit value. In a
+ big-endian file, the result is the same; in a little-endian
+ file, the two 16-bit halves of the 32 bit value are swapped.
+ This is so that a disassembler can recognize the jal
+ instruction.
+
+ When doing a final link, R_MIPS16_26 is treated as a 32 bit
+ instruction stored as two 16-bit values. The addend A is the
+ contents of the targ26 field. The calculation is the same as
+ R_MIPS_26. When storing the calculated value, reorder the
+ immediate value as shown above, and don't forget to store the
+ value as two 16-bit values.
+
+ To put it in MIPS ABI terms, the relocation field is T-targ26-16,
+ defined as
+
+ big-endian:
+ +--------+----------------------+
+ | | |
+ | | targ26-16 |
+ |31 26|25 0|
+ +--------+----------------------+
+
+ little-endian:
+ +----------+------+-------------+
+ | | | |
+ | sub1 | | sub2 |
+ |0 9|10 15|16 31|
+ +----------+--------------------+
+ where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is
+ ((sub1 << 16) | sub2)).
+
+ When producing a relocateable object file, the calculation is
+ (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
+ When producing a fully linked file, the calculation is
+ let R = (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
+ ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */
+
+ if (!info->relocateable)
+ /* Shuffle the bits according to the formula above. */
+ value = (((value & 0x1f0000) << 5)
+ | ((value & 0x3e00000) >> 5)
+ | (value & 0xffff));
+ }
+ else if (r_type == R_MIPS16_GPREL)
+ {
+ /* R_MIPS16_GPREL is used for GP-relative addressing in mips16
+ mode. A typical instruction will have a format like this:
+
+ +--------------+--------------------------------+
+ ! EXTEND ! Imm 10:5 ! Imm 15:11 !
+ +--------------+--------------------------------+
+ ! Major ! rx ! ry ! Imm 4:0 !
+ +--------------+--------------------------------+
+
+ EXTEND is the five bit value 11110. Major is the instruction
+ opcode.
+
+ This is handled exactly like R_MIPS_GPREL16, except that the
+ addend is retrieved and stored as shown in this diagram; that
+ is, the Imm fields above replace the V-rel16 field.
+
+ All we need to do here is shuffle the bits appropriately. As
+ above, the two 16-bit halves must be swapped on a
+ little-endian system. */
+ value = (((value & 0x7e0) << 16)
+ | ((value & 0xf800) << 5)
+ | (value & 0x1f));
+ }
+
+ /* Set the field. */
+ x |= (value & howto->dst_mask);
+
+ /* If required, turn JAL into JALX. */
+ if (require_jalx)
+ {
+ boolean ok;
+ bfd_vma opcode = x >> 26;
+ bfd_vma jalx_opcode;
+
+ /* Check to see if the opcode is already JAL or JALX. */
+ if (r_type == R_MIPS16_26)
+ {
+ ok = ((opcode == 0x6) || (opcode == 0x7));
+ jalx_opcode = 0x7;
+ }
+ else
+ {
+ ok = ((opcode == 0x3) || (opcode == 0x1d));
+ jalx_opcode = 0x1d;
+ }
+
+ /* If the opcode is not JAL or JALX, there's a problem. */
+ if (!ok)
+ {
+ (*_bfd_error_handler)
+ (_("%s: %s+0x%lx: jump to stub routine which is not jal"),
+ bfd_archive_filename (input_bfd),
+ input_section->name,
+ (unsigned long) relocation->r_offset);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ /* Make this the JALX opcode. */
+ x = (x & ~(0x3f << 26)) | (jalx_opcode << 26);
+ }
+
+ /* Swap the high- and low-order 16 bits on little-endian systems
+ when doing a MIPS16 relocation. */
+ if ((r_type == R_MIPS16_GPREL || r_type == R_MIPS16_26)
+ && bfd_little_endian (input_bfd))
+ x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
+
+ /* Put the value into the output. */
+ bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location);
+ return true;
+}
+
+/* Returns true if SECTION is a MIPS16 stub section. */
+
+static boolean
+mips_elf64_stub_section_p (abfd, section)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section;
+{
+ const char *name = bfd_get_section_name (abfd, section);
+
+ return (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0
+ || strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
+ || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0);
+}
+
+/* Relocate a MIPS ELF64 section. */
+
+static boolean
+mips_elf64_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ Elf_Internal_Rela *relocs;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
+{
+ Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *relend;
+ bfd_vma addend = 0;
+ boolean use_saved_addend_p = false;
+ struct elf_backend_data *bed;
+
+ bed = get_elf_backend_data (output_bfd);
+ relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
+ for (rel = relocs; rel < relend; ++rel)
+ {
+ const char *name;
+ bfd_vma value;
+ reloc_howto_type *howto;
+ boolean require_jalx;
+ /* True if the relocation is a RELA relocation, rather than a
+ REL relocation. */
+ boolean rela_relocation_p = true;
+ int r_type = ELF64_MIPS_R_TYPE (rel->r_info);
+ const char *msg = (const char *) NULL;
+
+ /* Find the relocation howto for this relocation. */
+ howto = &mips_elf64_howto_table_rela[r_type];
+
+ if (!use_saved_addend_p)
+ {
+ Elf_Internal_Shdr *rel_hdr;
+
+ /* If these relocations were originally of the REL variety,
+ we must pull the addend out of the field that will be
+ relocated. Otherwise, we simply use the contents of the
+ RELA relocation. To determine which flavor or relocation
+ this is, we depend on the fact that the INPUT_SECTION's
+ REL_HDR is read before its REL_HDR2. */
+ rel_hdr = &elf_section_data (input_section)->rel_hdr;
+ if ((size_t) (rel - relocs)
+ >= (NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel))
+ rel_hdr = elf_section_data (input_section)->rel_hdr2;
+ if (rel_hdr->sh_entsize
+ == (get_elf_backend_data (input_bfd)->s->sizeof_rel))
+ {
+ /* Note that this is a REL relocation. */
+ rela_relocation_p = false;
+
+ /* Find the relocation howto for this relocation. */
+ howto = &mips_elf64_howto_table_rel[r_type];
+
+ /* Get the addend, which is stored in the input file. */
+ addend = mips_elf64_obtain_contents (howto,
+ rel,
+ input_bfd,
+ contents);
+ addend &= howto->src_mask;
+
+ /* For some kinds of relocations, the ADDEND is a
+ combination of the addend stored in two different
+ relocations. */
+ if (r_type == R_MIPS_HI16
+ || r_type == R_MIPS_GNU_REL_HI16
+ || (r_type == R_MIPS_GOT16
+ && mips_elf64_local_relocation_p (input_bfd, rel,
+ local_sections, false)))
+ {
+ bfd_vma l;
+ const Elf_Internal_Rela *lo16_relocation;
+ reloc_howto_type *lo16_howto;
+ int lo;
+
+ /* The combined value is the sum of the HI16 addend,
+ left-shifted by sixteen bits, and the LO16
+ addend, sign extended. (Usually, the code does
+ a `lui' of the HI16 value, and then an `addiu' of
+ the LO16 value.)
+
+ Scan ahead to find a matching LO16 relocation. */
+ if (r_type == R_MIPS_GNU_REL_HI16)
+ lo = R_MIPS_GNU_REL_LO16;
+ else
+ lo = R_MIPS_LO16;
+ lo16_relocation
+ = mips_elf64_next_relocation (lo, rel, relend);
+ if (lo16_relocation == NULL)
+ return false;
+
+ /* Obtain the addend kept there. */
+ if (rela_relocation_p == false)
+ lo16_howto = &mips_elf64_howto_table_rel[lo];
+ else
+ lo16_howto = &mips_elf64_howto_table_rela[lo];
+ l = mips_elf64_obtain_contents (lo16_howto,
+ lo16_relocation,
+ input_bfd, contents);
+ l &= lo16_howto->src_mask;
+ l = mips_elf64_sign_extend (l, 16);
+
+ addend <<= 16;
+
+ /* Compute the combined addend. */
+ addend += l;
+ }
+ }
+ else
+ addend = rel->r_addend;
+ }
+
+ if (info->relocateable)
+ {
+ Elf_Internal_Sym *sym;
+ unsigned long r_symndx;
+
+ /* Since we're just relocating, all we need to do is copy
+ the relocations back out to the object file, unless
+ they're against a section symbol, in which case we need
+ to adjust by the section offset, or unless they're GP
+ relative in which case we need to adjust by the amount
+ that we're adjusting GP in this relocateable object. */
+
+ if (!mips_elf64_local_relocation_p (input_bfd, rel, local_sections,
+ false))
+ /* There's nothing to do for non-local relocations. */
+ continue;
+
+ if (r_type == R_MIPS_GPREL16
+ || r_type == R_MIPS_GPREL32
+ || r_type == R_MIPS_LITERAL)
+ addend -= (_bfd_get_gp_value (output_bfd)
+ - _bfd_get_gp_value (input_bfd));
+ else if (r_type == R_MIPS_26 || r_type == R_MIPS_GNU_REL16_S2)
+ /* The addend is stored without its two least
+ significant bits (which are always zero.) In a
+ non-relocateable link, calculate_relocation will do
+ this shift; here, we must do it ourselves. */
+ addend <<= 2;
+
+ r_symndx = ELF64_R_SYM (rel->r_info);
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ /* Adjust the addend appropriately. */
+ addend += local_sections[r_symndx]->output_offset;
+
+#if 0
+ /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16,
+ then we only want to write out the high-order 16 bits.
+ The subsequent R_MIPS_LO16 will handle the low-order bits. */
+ if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16
+ || r_type == R_MIPS_GNU_REL_HI16)
+ addend = mips_elf64_high (addend);
+ else if (r_type == R_MIPS_HIGHER)
+ addend = mips_elf64_higher (addend);
+ else if (r_type == R_MIPS_HIGHEST)
+ addend = mips_elf64_highest (addend);
+#endif
+ /* If the relocation is for an R_MIPS_26 relocation, then
+ the two low-order bits are not stored in the object file;
+ they are implicitly zero. */
+ if (r_type == R_MIPS_26 || r_type == R_MIPS_GNU_REL16_S2)
+ addend >>= 2;
+
+ if (rela_relocation_p)
+ /* If this is a RELA relocation, just update the addend.
+ We have to cast away constness for REL. */
+ rel->r_addend = addend;
+ else
+ {
+ /* Otherwise, we have to write the value back out. Note
+ that we use the source mask, rather than the
+ destination mask because the place to which we are
+ writing will be source of the addend in the final
+ link. */
+ addend &= howto->src_mask;
+
+ if (!mips_elf64_perform_relocation (info, howto, rel, addend,
+ input_bfd, input_section,
+ contents, false))
+ return false;
+ }
+
+ /* Go on to the next relocation. */
+ continue;
+ }
+
+ /* In the N32 and 64-bit ABIs there may be multiple consecutive
+ relocations for the same offset. In that case we are
+ supposed to treat the output of each relocation as the addend
+ for the next. */
+ if (rel + 1 < relend
+ && rel->r_offset == rel[1].r_offset
+ && ELF64_MIPS_R_TYPE (rel[1].r_info) != R_MIPS_NONE)
+ use_saved_addend_p = true;
+ else
+ use_saved_addend_p = false;
+
+ /* Figure out what value we are supposed to relocate. */
+ switch (mips_elf64_calculate_relocation (output_bfd, input_bfd,
+ input_section, info, rel,
+ addend, howto, local_syms,
+ local_sections, &value, &name,
+ &require_jalx))
+ {
+ case bfd_reloc_continue:
+ /* There's nothing to do. */
+ continue;
+
+ case bfd_reloc_undefined:
+ /* mips_elf64_calculate_relocation already called the
+ undefined_symbol callback. There's no real point in
+ trying to perform the relocation at this point, so we
+ just skip ahead to the next relocation. */
+ continue;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ info->callbacks->warning
+ (info, msg, name, input_bfd, input_section, rel->r_offset);
+ return false;
+
+ case bfd_reloc_overflow:
+ if (use_saved_addend_p)
+ /* Ignore overflow until we reach the last relocation for
+ a given location. */
+ ;
+ else
+ {
+ BFD_ASSERT (name != NULL);
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
+ }
+ break;
+
+ case bfd_reloc_ok:
+ break;
+
+ default:
+ abort ();
+ break;
+ }
+
+ /* If we've got another relocation for the address, keep going
+ until we reach the last one. */
+ if (use_saved_addend_p)
+ {
+ addend = value;
+ continue;
+ }
+
+ /* Actually perform the relocation. */
+ if (!mips_elf64_perform_relocation (info, howto, rel, value, input_bfd,
+ input_section, contents,
+ require_jalx))
+ return false;
+ }
+
+ return true;
+}
+
+/* Create dynamic sections when linking against a dynamic object. */
+
+boolean
+mips_elf64_create_dynamic_sections (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ flagword flags;
+ register asection *s;
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED | SEC_READONLY);
+
+ /* Mips ABI requests the .dynamic section to be read only. */
+ s = bfd_get_section_by_name (abfd, ".dynamic");
+ if (s != NULL)
+ {
+ if (! bfd_set_section_flags (abfd, s, flags))
+ return false;
+ }
+
+ /* We need to create .got section. */
+ if (! mips_elf64_create_got_section (abfd, info))
+ return false;
+
+ /* Create the .msym section on IRIX6. It is used by the dynamic
+ linker to speed up dynamic relocations, and to avoid computing
+ the ELF hash for symbols. */
+ if (!mips_elf64_create_msym_section (abfd))
+ return false;
+
+ /* Create .stub section. */
+ if (bfd_get_section_by_name (abfd, ".MIPS.stubs") == NULL)
+ {
+ s = bfd_make_section (abfd, ".MIPS.stubs");
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
+ || ! bfd_set_section_alignment (abfd, s, 3))
+ return false;
+ }
+
+ 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
+ change the definition to something the rest of the link can
+ understand. */
+
+boolean
+mips_elf64_adjust_dynamic_symbol (info, h)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+{
+ bfd *dynobj;
+ struct mips_elf64_link_hash_entry *hmips;
+ asection *s;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ /* Make sure we know what is going on here. */
+ BFD_ASSERT (dynobj != NULL
+ && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
+ || h->weakdef != NULL
+ || ((h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_REF_REGULAR) != 0
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)));
+
+ /* If this symbol is defined in a dynamic object, we need to copy
+ any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output
+ file. */
+ hmips = (struct mips_elf64_link_hash_entry *) h;
+ if (! info->relocateable
+ && hmips->possibly_dynamic_relocs != 0
+ && (h->root.type == bfd_link_hash_defweak
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ {
+ mips_elf64_allocate_dynamic_relocations (dynobj,
+ hmips->possibly_dynamic_relocs);
+ if (hmips->readonly_reloc)
+ /* We tell the dynamic linker that there are relocations
+ against the text segment. */
+ info->flags |= DF_TEXTREL;
+ }
+
+ /* For a function, create a stub, if allowed. */
+ if (! hmips->no_fn_stub
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ {
+ if (! elf_hash_table (info)->dynamic_sections_created)
+ return true;
+
+ /* If this symbol is not defined in a regular file, then set
+ the symbol to the stub location. This is required to make
+ function pointers compare as equal between the normal
+ executable and the shared library. */
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ {
+ /* We need .stub section. */
+ s = bfd_get_section_by_name (dynobj, ".MIPS.stubs");
+ BFD_ASSERT (s != NULL);
+
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->_raw_size;
+
+ /* XXX Write this stub address somewhere. */
+ h->plt.offset = s->_raw_size;
+
+ /* Make room for this stub code. */
+ s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
+
+ /* The last half word of the stub will be filled with the index
+ of this symbol in .dynsym section. */
+ return true;
+ }
+ }
+ else if ((h->type == STT_FUNC)
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) == 0)
+ {
+ /* This will set the entry for this symbol in the GOT to 0, and
+ the dynamic linker will take care of this. */
+ h->root.u.def.value = 0;
+ return true;
+ }
+
+ /* 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->weakdef != NULL)
+ {
+ BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
+ || h->weakdef->root.type == bfd_link_hash_defweak);
+ h->root.u.def.section = h->weakdef->root.u.def.section;
+ h->root.u.def.value = h->weakdef->root.u.def.value;
+ return true;
+ }
+
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. */
+
+ return true;
+}
+
+/* This function is called after all the input files have been read,
+ and the input sections have been assigned to output sections. */
+
+boolean
+mips_elf64_always_size_sections (output_bfd, info)
+ bfd *output_bfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+{
+ if (info->relocateable
+ || ! mips_elf64_hash_table (info)->mips16_stubs_seen)
+ return true;
+
+ mips_elf64_link_hash_traverse (mips_elf64_hash_table (info),
+ mips_elf64_check_mips16_stubs,
+ (PTR) NULL);
+
+ return true;
+}
+
+/* Check the mips16 stubs for a particular symbol, and see if we can
+ discard them. */
+
+static boolean
+mips_elf64_check_mips16_stubs (h, data)
+ struct mips_elf64_link_hash_entry *h;
+ PTR data ATTRIBUTE_UNUSED;
+{
+ if (h->fn_stub != NULL
+ && ! h->need_fn_stub)
+ {
+ /* We don't need the fn_stub; the only references to this symbol
+ are 16 bit calls. Clobber the size to 0 to prevent it from
+ being included in the link. */
+ h->fn_stub->_raw_size = 0;
+ h->fn_stub->_cooked_size = 0;
+ h->fn_stub->flags &= ~SEC_RELOC;
+ h->fn_stub->reloc_count = 0;
+ h->fn_stub->flags |= SEC_EXCLUDE;
+ }
+
+ if (h->call_stub != NULL
+ && h->root.other == STO_MIPS16)
+ {
+ /* We don't need the call_stub; this is a 16 bit function, so
+ calls from other 16 bit functions are OK. Clobber the size
+ to 0 to prevent it from being included in the link. */
+ h->call_stub->_raw_size = 0;
+ h->call_stub->_cooked_size = 0;
+ h->call_stub->flags &= ~SEC_RELOC;
+ h->call_stub->reloc_count = 0;
+ h->call_stub->flags |= SEC_EXCLUDE;
+ }
+
+ if (h->call_fp_stub != NULL
+ && h->root.other == STO_MIPS16)
+ {
+ /* We don't need the call_stub; this is a 16 bit function, so
+ calls from other 16 bit functions are OK. Clobber the size
+ to 0 to prevent it from being included in the link. */
+ h->call_fp_stub->_raw_size = 0;
+ h->call_fp_stub->_cooked_size = 0;
+ h->call_fp_stub->flags &= ~SEC_RELOC;
+ h->call_fp_stub->reloc_count = 0;
+ h->call_fp_stub->flags |= SEC_EXCLUDE;
+ }
+
+ return true;
+}
+
+/* Set the sizes of the dynamic sections. */
+
+boolean
+mips_elf64_size_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ bfd *dynobj;
+ asection *s;
+ boolean reltext;
+ struct mips_elf64_got_info *g = NULL;
+
+ dynobj = elf_hash_table (info)->dynobj;
+ BFD_ASSERT (dynobj != NULL);
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ /* Set the contents of the .interp section to the interpreter. */
+ if (! info->shared)
+ {
+ s = bfd_get_section_by_name (dynobj, ".interp");
+ BFD_ASSERT (s != NULL);
+ s->_raw_size = strlen ("/usr/lib64/libc.so.1") + 1;
+ s->contents = (bfd_byte *) "/usr/lib64/libc.so.1";
+ }
+ }
+
+ /* The check_relocs and adjust_dynamic_symbol entry points have
+ determined the sizes of the various dynamic sections. Allocate
+ memory for them. */
+ reltext = false;
+ for (s = dynobj->sections; s != NULL; s = s->next)
+ {
+ const char *name;
+ boolean strip;
+
+ /* 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);
+
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
+ continue;
+
+ strip = false;
+
+ if (strncmp (name, ".rel", 4) == 0)
+ {
+ if (s->_raw_size == 0)
+ {
+ /* We only strip the section if the output section name
+ has the same name. Otherwise, there might be several
+ input sections for this output section. FIXME: This
+ code is probably not needed these days anyhow, since
+ the linker now does not create empty output sections. */
+ if (s->output_section != NULL
+ && strcmp (name,
+ bfd_get_section_name (s->output_section->owner,
+ s->output_section)) == 0)
+ strip = true;
+ }
+ else
+ {
+ const char *outname;
+ asection *target;
+
+ /* If this relocation section applies to a read only
+ section, then we probably need a DT_TEXTREL entry.
+ If the relocation section is .rel.dyn, we always
+ assert a DT_TEXTREL entry rather than testing whether
+ there exists a relocation to a read only section or
+ not. */
+ outname = bfd_get_section_name (output_bfd,
+ s->output_section);
+ target = bfd_get_section_by_name (output_bfd, outname + 4);
+ if ((target != NULL
+ && (target->flags & SEC_READONLY) != 0
+ && (target->flags & SEC_ALLOC) != 0)
+ || strcmp (outname, "rel.dyn") == 0)
+ reltext = true;
+
+ /* We use the reloc_count field as a counter if we need
+ to copy relocs into the output file. */
+ if (strcmp (name, "rel.dyn") != 0)
+ s->reloc_count = 0;
+ }
+ }
+ else if (strncmp (name, ".got", 4) == 0)
+ {
+ int i;
+ bfd_size_type loadable_size = 0;
+ bfd_size_type local_gotno;
+ bfd *sub;
+
+ BFD_ASSERT (elf_section_data (s) != NULL);
+ g = (struct mips_elf64_got_info *) elf_section_data (s)->tdata;
+ BFD_ASSERT (g != NULL);
+
+ /* Calculate the total loadable size of the output. That
+ will give us the maximum number of GOT_PAGE entries
+ required. */
+ for (sub = info->input_bfds; sub; sub = sub->link_next)
+ {
+ asection *subsection;
+
+ for (subsection = sub->sections;
+ subsection;
+ subsection = subsection->next)
+ {
+ if ((subsection->flags & SEC_ALLOC) == 0)
+ continue;
+ loadable_size += (subsection->_raw_size + 0xf) & ~0xf;
+ }
+ }
+ loadable_size += MIPS_FUNCTION_STUB_SIZE;
+
+ /* Assume there are two loadable segments consisting of
+ contiguous sections. Is 5 enough? */
+ local_gotno = (loadable_size >> 16) + 5;
+ /* It's possible we will need GOT_PAGE entries as well as
+ GOT16 entries. Often, these will be able to share GOT
+ entries, but not always. */
+ local_gotno *= 2;
+
+ g->local_gotno += local_gotno;
+ s->_raw_size += local_gotno * 8;
+
+ /* There has to be a global GOT entry for every symbol with
+ a dynamic symbol table index of DT_MIPS_GOTSYM or
+ higher. Therefore, it make sense to put those symbols
+ that need GOT entries at the end of the symbol table. We
+ do that here. */
+ if (!mips_elf64_sort_hash_table (info, 1))
+ return false;
+
+ if (g->global_gotsym != NULL)
+ i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
+ else
+ /* If there are no global symbols, or none requiring
+ relocations, then GLOBAL_GOTSYM will be NULL. */
+ i = 0;
+ g->global_gotno = i;
+ s->_raw_size += i * 8;
+ }
+ else if (strcmp (name, ".MIPS.stubs") == 0)
+ {
+ /* Irix rld assumes that the function stub isn't at the end
+ of .text section. So put a dummy. XXX */
+ s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
+ }
+ else if (strcmp (name, ".msym")
+ == 0)
+ s->_raw_size = (sizeof (Elf32_External_Msym)
+ * (elf_hash_table (info)->dynsymcount
+ + bfd_count_sections (output_bfd)));
+ else if (strncmp (name, ".init", 5) != 0)
+ {
+ /* It's not one of our sections, so don't allocate space. */
+ continue;
+ }
+
+ if (strip)
+ {
+ _bfd_strip_section_from_output (info, s);
+ continue;
+ }
+
+ /* Allocate memory for the section contents. */
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
+ if (s->contents == NULL && s->_raw_size != 0)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return false;
+ }
+ }
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in elf_mips_finish_dynamic_sections, but we
+ must add the entries now so that we get the correct size for
+ the .dynamic section. The DT_DEBUG entry is filled in by the
+ dynamic linker and used by the debugger. */
+ if (! info->shared)
+ {
+ /* SGI object has the equivalence of DT_DEBUG in the
+ DT_MIPS_RLD_MAP entry. */
+ if (!bfd_elf64_add_dynamic_entry (info, DT_MIPS_RLD_MAP, 0))
+ return false;
+ if (!SGI_COMPAT (output_bfd))
+ {
+ if (!bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0))
+ return false;
+ }
+ }
+ else
+ {
+ /* Shared libraries on traditional mips have DT_DEBUG. */
+ if (!SGI_COMPAT (output_bfd))
+ {
+ if (!bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0))
+ return false;
+ }
+ }
+
+ if (reltext && SGI_COMPAT (output_bfd))
+ info->flags |= DF_TEXTREL;
+
+ if ((info->flags & DF_TEXTREL) != 0)
+ {
+ if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0))
+ return false;
+ }
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0))
+ return false;
+
+ if (bfd_get_section_by_name (dynobj, "rel.dyn"))
+ {
+ if (! bfd_elf64_add_dynamic_entry (info, DT_REL, 0))
+ return false;
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_RELSZ, 0))
+ return false;
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_RELENT, 0))
+ return false;
+ }
+
+ if (SGI_COMPAT (output_bfd))
+ {
+ if (!bfd_elf64_add_dynamic_entry (info, DT_MIPS_CONFLICTNO, 0))
+ return false;
+ }
+
+ if (SGI_COMPAT (output_bfd))
+ {
+ if (!bfd_elf64_add_dynamic_entry (info, DT_MIPS_LIBLISTNO, 0))
+ return false;
+ }
+
+ if (bfd_get_section_by_name (dynobj, ".conflict") != NULL)
+ {
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_CONFLICT, 0))
+ return false;
+
+ s = bfd_get_section_by_name (dynobj, ".liblist");
+ BFD_ASSERT (s != NULL);
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_LIBLIST, 0))
+ return false;
+ }
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_RLD_VERSION, 0))
+ return false;
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_FLAGS, 0))
+ return false;
+
+#if 0
+ /* Time stamps in executable files are a bad idea. */
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_TIME_STAMP, 0))
+ return false;
+#endif
+
+#if 0 /* FIXME */
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_ICHECKSUM, 0))
+ return false;
+#endif
+
+#if 0 /* FIXME */
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_IVERSION, 0))
+ return false;
+#endif
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_BASE_ADDRESS, 0))
+ return false;
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_LOCAL_GOTNO, 0))
+ return false;
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_SYMTABNO, 0))
+ return false;
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_UNREFEXTNO, 0))
+ return false;
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_MIPS_GOTSYM, 0))
+ return false;
+
+ if ((bfd_get_section_by_name(dynobj, ".MIPS.options"))
+ && !bfd_elf64_add_dynamic_entry (info, DT_MIPS_OPTIONS, 0))
+ return false;
+
+ if (bfd_get_section_by_name (dynobj, ".msym")
+ && !bfd_elf64_add_dynamic_entry (info, DT_MIPS_MSYM, 0))
+ return false;
+ }
+
+ return true;
+}
+
+/* Finish up dynamic symbol handling. We set the contents of various
+ dynamic sections here. */
+
+boolean
+mips_elf64_finish_dynamic_symbol (output_bfd, info, h, sym)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+{
+ bfd *dynobj;
+ bfd_vma gval;
+ asection *sgot;
+ asection *smsym;
+ struct mips_elf64_got_info *g;
+ const char *name;
+ struct mips_elf64_link_hash_entry *mh;
+
+ dynobj = elf_hash_table (info)->dynobj;
+ gval = sym->st_value;
+ mh = (struct mips_elf64_link_hash_entry *) h;
+
+ if (h->plt.offset != (bfd_vma) -1)
+ {
+ asection *s;
+ bfd_byte stub[MIPS_FUNCTION_STUB_SIZE];
+
+ /* This symbol has a stub. Set it up. */
+
+ BFD_ASSERT (h->dynindx != -1);
+
+ s = bfd_get_section_by_name (dynobj, ".MIPS.stubs");
+ BFD_ASSERT (s != NULL);
+
+ /* FIXME: Can h->dynindex be more than 64K? */
+ if (h->dynindx & 0xffff0000)
+ return false;
+
+ /* Fill the stub. */
+ bfd_put_32 (output_bfd, STUB_LW, stub);
+ bfd_put_32 (output_bfd, STUB_MOVE, stub + 4);
+ bfd_put_32 (output_bfd, STUB_JALR, stub + 8);
+ bfd_put_32 (output_bfd, STUB_LI16 + h->dynindx, stub + 12);
+
+ BFD_ASSERT (h->plt.offset <= s->_raw_size);
+ memcpy (s->contents + h->plt.offset, stub, MIPS_FUNCTION_STUB_SIZE);
+
+ /* Mark the symbol as undefined. plt.offset != -1 occurs
+ only for the referenced symbol. */
+ sym->st_shndx = SHN_UNDEF;
+
+ /* The run-time linker uses the st_value field of the symbol
+ to reset the global offset table entry for this external
+ to its stub address when unlinking a shared object. */
+ gval = s->output_section->vma + s->output_offset + h->plt.offset;
+ sym->st_value = gval;
+ }
+
+ BFD_ASSERT (h->dynindx != -1
+ || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0);
+
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
+ BFD_ASSERT (elf_section_data (sgot) != NULL);
+ g = (struct mips_elf64_got_info *) elf_section_data (sgot)->tdata;
+ BFD_ASSERT (g != NULL);
+
+ /* Run through the global symbol table, creating GOT entries for all
+ the symbols that need them. */
+ if (g->global_gotsym != NULL
+ && h->dynindx >= g->global_gotsym->dynindx)
+ {
+ bfd_vma offset;
+ bfd_vma value;
+
+ if (sym->st_value)
+ value = sym->st_value;
+ else
+ {
+ /* For an entity defined in a shared object, this will be
+ NULL. (For functions in shared objects for
+ which we have created stubs, ST_VALUE will be non-NULL.
+ That's because such the functions are now no longer defined
+ in a shared object.) */
+
+ if (info->shared && h->root.type == bfd_link_hash_undefined)
+ value = 0;
+ else
+ value = h->root.u.def.value;
+ }
+ offset = mips_elf64_global_got_index (dynobj, h);
+ bfd_put_64 (output_bfd, value, sgot->contents + offset);
+ }
+
+ /* Create a .msym entry, if appropriate. */
+ smsym = bfd_get_section_by_name (dynobj, ".msym");
+ if (smsym)
+ {
+ Elf32_Internal_Msym msym;
+
+ msym.ms_hash_value = bfd_elf_hash (h->root.root.string);
+ /* It is undocumented what the `1' indicates, but IRIX6 uses
+ this value. */
+ msym.ms_info = ELF32_MS_INFO (mh->min_dyn_reloc_index, 1);
+ mips_elf64_swap_msym_out
+ (dynobj, &msym,
+ ((Elf32_External_Msym *) smsym->contents) + h->dynindx);
+ }
+
+ /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
+ name = h->root.root.string;
+ if (strcmp (name, "_DYNAMIC") == 0
+ || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
+ sym->st_shndx = SHN_ABS;
+ else if (strcmp (name, "_DYNAMIC_LINK") == 0
+ || strcmp (name, "_DYNAMIC_LINKING") == 0)
+ {
+ sym->st_shndx = SHN_ABS;
+ sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
+ sym->st_value = 1;
+ }
+ else if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS)
+ {
+ if (h->type == STT_FUNC)
+ sym->st_shndx = SHN_MIPS_TEXT;
+ else if (h->type == STT_OBJECT)
+ sym->st_shndx = SHN_MIPS_DATA;
+ }
+
+ /* Handle the IRIX6-specific symbols. */
+
+ {
+ /* The linker script takes care of providing names and values for
+ these, but we must place them into the right sections. */
+ static const char* const text_section_symbols[] = {
+ "_ftext",
+ "_etext",
+ "__dso_displacement",
+ "__elf_header",
+ "__program_header_table",
+ NULL
+ };
+
+ static const char* const data_section_symbols[] = {
+ "_fdata",
+ "_edata",
+ "_end",
+ "_fbss",
+ NULL
+ };
+
+ const char* const *p;
+ int i;
+
+ for (i = 0; i < 2; ++i)
+ for (p = (i == 0) ? text_section_symbols : data_section_symbols;
+ *p;
+ ++p)
+ if (strcmp (*p, name) == 0)
+ {
+ /* All of these symbols are given type STT_SECTION by the
+ IRIX6 linker. */
+ sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
+
+ /* The IRIX linker puts these symbols in special sections. */
+ if (i == 0)
+ sym->st_shndx = SHN_MIPS_TEXT;
+ else
+ sym->st_shndx = SHN_MIPS_DATA;
+
+ break;
+ }
+ }
+
+ return true;
+}
+
+/* Finish up the dynamic sections. */
+
+boolean
+mips_elf64_finish_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ bfd *dynobj;
+ asection *sdyn;
+ asection *sgot;
+ struct mips_elf64_got_info *g;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ if (sgot == NULL)
+ g = NULL;
+ else
+ {
+ BFD_ASSERT (elf_section_data (sgot) != NULL);
+ g = (struct mips_elf64_got_info *) elf_section_data (sgot)->tdata;
+ BFD_ASSERT (g != NULL);
+ }
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ bfd_byte *b;
+
+ BFD_ASSERT (sdyn != NULL);
+ BFD_ASSERT (g != NULL);
+
+ for (b = sdyn->contents;
+ b < sdyn->contents + sdyn->_raw_size;
+ b += get_elf_backend_data (dynobj)->s->sizeof_dyn)
+ {
+ Elf_Internal_Dyn dyn;
+ const char *name;
+ size_t elemsize;
+ asection *s;
+ boolean swap_out_p;
+
+ /* Read in the current dynamic entry. */
+ (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
+
+ /* Assume that we're going to modify it and write it out. */
+ swap_out_p = true;
+
+ switch (dyn.d_tag)
+ {
+ case DT_RELENT:
+ s = bfd_get_section_by_name(dynobj, "rel.dyn");
+ BFD_ASSERT (s != NULL);
+ dyn.d_un.d_val = get_elf_backend_data (dynobj)->s->sizeof_rel;
+ break;
+
+ case DT_STRSZ:
+ /* Rewrite DT_STRSZ. */
+ dyn.d_un.d_val =
+ _bfd_elf_strtab_size (elf_hash_table (info)->dynstr);
+ break;
+
+ case DT_PLTGOT:
+ name = ".got";
+ goto get_vma;
+ case DT_MIPS_CONFLICT:
+ name = ".conflict";
+ goto get_vma;
+ case DT_MIPS_LIBLIST:
+ name = ".liblist";
+ get_vma:
+ s = bfd_get_section_by_name (output_bfd, name);
+ BFD_ASSERT (s != NULL);
+ dyn.d_un.d_ptr = s->vma;
+ break;
+
+ case DT_MIPS_RLD_VERSION:
+ dyn.d_un.d_val = 1; /* XXX */
+ break;
+
+ case DT_MIPS_FLAGS:
+ dyn.d_un.d_val = RHF_NOTPOT; /* XXX */
+ break;
+
+ case DT_MIPS_CONFLICTNO:
+ name = ".conflict";
+ elemsize = sizeof (Elf32_Conflict);
+ goto set_elemno;
+
+ case DT_MIPS_LIBLISTNO:
+ name = ".liblist";
+ elemsize = sizeof (Elf32_Lib);
+ set_elemno:
+ s = bfd_get_section_by_name (output_bfd, name);
+ if (s != NULL)
+ {
+ if (s->_cooked_size != 0)
+ dyn.d_un.d_val = s->_cooked_size / elemsize;
+ else
+ dyn.d_un.d_val = s->_raw_size / elemsize;
+ }
+ else
+ dyn.d_un.d_val = 0;
+ break;
+
+ case DT_MIPS_TIME_STAMP:
+ time ((time_t *) &dyn.d_un.d_val);
+ break;
+
+ case DT_MIPS_ICHECKSUM:
+ /* XXX FIXME: */
+ swap_out_p = false;
+ break;
+
+ case DT_MIPS_IVERSION:
+ /* XXX FIXME: */
+ swap_out_p = false;
+ break;
+
+ case DT_MIPS_BASE_ADDRESS:
+ s = output_bfd->sections;
+ BFD_ASSERT (s != NULL);
+ dyn.d_un.d_ptr = s->vma & ~(0xffff);
+ break;
+
+ case DT_MIPS_LOCAL_GOTNO:
+ dyn.d_un.d_val = g->local_gotno;
+ break;
+
+ case DT_MIPS_UNREFEXTNO:
+ /* The index into the dynamic symbol table which is the
+ entry of the first external symbol that is not
+ referenced within the same object. */
+ dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
+ break;
+
+ case DT_MIPS_GOTSYM:
+ if (g->global_gotsym)
+ {
+ dyn.d_un.d_val = g->global_gotsym->dynindx;
+ break;
+ }
+ /* In case if we don't have global got symbols we default
+ to setting DT_MIPS_GOTSYM to the same value as
+ DT_MIPS_SYMTABNO, so we just fall through. */
+
+ case DT_MIPS_SYMTABNO:
+ name = ".dynsym";
+ elemsize = get_elf_backend_data (output_bfd)->s->sizeof_sym;
+ s = bfd_get_section_by_name (output_bfd, name);
+ BFD_ASSERT (s != NULL);
+
+ if (s->_cooked_size != 0)
+ dyn.d_un.d_val = s->_cooked_size / elemsize;
+ else
+ dyn.d_un.d_val = s->_raw_size / elemsize;
+ break;
+
+ case DT_MIPS_HIPAGENO:
+ dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO;
+ break;
+
+ case DT_MIPS_OPTIONS:
+ s = bfd_get_section_by_name(output_bfd, ".MIPS.options");
+ dyn.d_un.d_ptr = s->vma;
+ break;
+
+ case DT_MIPS_MSYM:
+ s = bfd_get_section_by_name(output_bfd, ".msym");
+ dyn.d_un.d_ptr = s->vma;
+ break;
+
+ default:
+ swap_out_p = false;
+ break;
+ }
+
+ if (swap_out_p)
+ (*get_elf_backend_data (dynobj)->s->swap_dyn_out)
+ (dynobj, &dyn, b);
+ }
+ }
+
+ /* The first entry of the global offset table will be filled at
+ runtime. The second entry will be used by some runtime loaders.
+ This isn't the case of Irix rld. */
+ if (sgot != NULL && sgot->_raw_size > 0)
+ {
+ bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
+ bfd_put_64 (output_bfd, (bfd_vma) 0x80000000, sgot->contents + 8);
+ }
+
+ if (sgot != NULL)
+ elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
+
+ {
+ asection *smsym;
+ asection *s;
+
+ /* ??? The section symbols for the output sections were set up in
+ _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these
+ symbols. Should we do so? */
+
+ smsym = bfd_get_section_by_name (dynobj, ".msym");
+ if (smsym != NULL)
+ {
+ Elf32_Internal_Msym msym;
+
+ msym.ms_hash_value = 0;
+ msym.ms_info = ELF32_MS_INFO (0, 1);
+
+ for (s = output_bfd->sections; s != NULL; s = s->next)
+ {
+ long dynindx = elf_section_data (s)->dynindx;
+
+ mips_elf64_swap_msym_out
+ (output_bfd, &msym,
+ (((Elf32_External_Msym *) smsym->contents)
+ + dynindx));
+ }
+ }
+
+ /* Clean up a first relocation in .rel.dyn. */
+ s = bfd_get_section_by_name (dynobj, "rel.dyn");
+ if (s != NULL && s->_raw_size > 0)
+ memset (s->contents, 0, get_elf_backend_data (dynobj)->s->sizeof_rel);
+ }
+
+ return true;
+}
+
+/* Return the section that should be marked against GC for a given
+ relocation. */
+
+asection *
+mips_elf64_gc_mark_hook (abfd, info, rel, h, sym)
+ bfd *abfd;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ Elf_Internal_Rela *rel;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+{
+ if (h != NULL)
+ {
+ switch (ELF64_R_TYPE (rel->r_info))
+ {
+ case R_MIPS_GNU_VTINHERIT:
+ case R_MIPS_GNU_VTENTRY:
+ break;
+
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
+
+ case bfd_link_hash_common:
+ return h->root.u.c.p->section;
+
+ default:
+ break;
+ }
+ }
+ }
+ else
+ {
+ return bfd_section_from_elf_index (abfd, sym->st_shndx);
+ }
+
+ return NULL;
+}
+
+/* Update the got entry reference counts for the section being removed. */
+
+boolean
+mips_elf64_gc_sweep_hook (abfd, info, sec, relocs)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ asection *sec ATTRIBUTE_UNUSED;
+ const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
+{
+#if 0
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ bfd_signed_vma *local_got_refcounts;
+ const Elf_Internal_Rela *rel, *relend;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+
+ relend = relocs + sec->reloc_count;
+ for (rel = relocs; rel < relend; rel++)
+ switch (ELF64_R_TYPE (rel->r_info))
+ {
+ case R_MIPS_GOT16:
+ case R_MIPS_CALL16:
+ case R_MIPS_CALL_HI16:
+ case R_MIPS_CALL_LO16:
+ case R_MIPS_GOT_HI16:
+ case R_MIPS_GOT_LO16:
+ /* ??? It would seem that the existing MIPS code does no sort
+ of reference counting or whatnot on its GOT and PLT entries,
+ so it is not possible to garbage collect them at this time. */
+ break;
+
+ default:
+ break;
+ }
+#endif
+
+ return true;
+}
+\f
+/* Create the .got section to hold the global offset table. */
+
+static boolean
+mips_elf64_create_got_section (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ flagword flags;
+ register asection *s;
+ struct elf_link_hash_entry *h;
+ struct mips_elf64_got_info *g;
+
+ /* This function may be called more than once. */
+ if (bfd_get_section_by_name (abfd, ".got"))
+ return true;
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
+
+ s = bfd_make_section (abfd, ".got");
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, flags)
+ || ! bfd_set_section_alignment (abfd, s, 4))
+ return false;
+
+ /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
+ linker script because we don't want to define the symbol if we
+ are not creating a global offset table. */
+ h = NULL;
+ if (! (_bfd_generic_link_add_one_symbol
+ (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
+ (bfd_vma) 0, (const char *) NULL, false,
+ get_elf_backend_data (abfd)->collect,
+ (struct bfd_link_hash_entry **) &h)))
+ return false;
+ h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
+ h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
+ h->type = STT_OBJECT;
+
+ if (info->shared
+ && ! bfd_elf64_link_record_dynamic_symbol (info, h))
+ return false;
+
+ /* The first several global offset table entries are reserved. */
+ s->_raw_size = MIPS_RESERVED_GOTNO * (get_elf_backend_data (abfd)->s->arch_size / 8);
+
+ g = (struct mips_elf64_got_info *) bfd_alloc (abfd,
+ sizeof (struct mips_elf64_got_info));
+ if (g == NULL)
+ return false;
+ g->global_gotsym = NULL;
+ g->local_gotno = MIPS_RESERVED_GOTNO;
+ g->assigned_gotno = MIPS_RESERVED_GOTNO;
+ if (elf_section_data (s) == NULL)
+ {
+ s->used_by_bfd =
+ (PTR) bfd_zalloc (abfd, sizeof (struct bfd_elf_section_data));
+ if (elf_section_data (s) == NULL)
+ return false;
+ }
+ elf_section_data (s)->tdata = (PTR) g;
+ elf_section_data (s)->this_hdr.sh_flags
+ |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
+
+ return true;
+}
+
+/* If H is a symbol that needs a global GOT entry, but has a dynamic
+ symbol table index lower than any we've seen to date, record it for
+ posterity. */
+
+static boolean
+mips_elf64_record_global_got_symbol (h, info, g)
+ struct elf_link_hash_entry *h;
+ struct bfd_link_info *info;
+ struct mips_elf64_got_info *g ATTRIBUTE_UNUSED;
+{
+ /* A global symbol in the GOT must also be in the dynamic symbol
+ table. */
+ if (h->dynindx == -1
+ && !bfd_elf64_link_record_dynamic_symbol (info, h))
+ return false;
+
+ /* If we've already marked this entry as needing GOT space, we don't
+ need to do it again. */
+ if (h->got.offset != (bfd_vma) - 1)
+ return true;
+
+ /* By setting this to a value other than -1, we are indicating that
+ there needs to be a GOT entry for H. Avoid using zero, as the
+ generic ELF copy_indirect_symbol tests for <= 0. */
+ h->got.offset = 1;
+
+ return true;
+}
+
+/* Returns the .msym section for ABFD, creating it if it does not
+ already exist. Returns NULL to indicate error. */
+
+static asection *
+mips_elf64_create_msym_section (abfd)
+ bfd *abfd;
+{
+ asection *s;
+
+ s = bfd_get_section_by_name (abfd, ".msym");
+ if (!s)
+ {
+ s = bfd_make_section (abfd, ".msym");
+ if (!s
+ || !bfd_set_section_flags (abfd, s,
+ SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_LINKER_CREATED
+ | SEC_READONLY)
+ || !bfd_set_section_alignment (abfd, s, 3))
+ return NULL;
+ }
+
+ return s;
+}
+
+/* Add room for N relocations to the .rel.dyn section in ABFD. */
+
+static void
+mips_elf64_allocate_dynamic_relocations (abfd, n)
+ bfd *abfd;
+ unsigned int n;
+{
+ asection *s;
+
+ s = bfd_get_section_by_name (abfd, ".rel.dyn");
+ BFD_ASSERT (s != NULL);
+
+ if (s->_raw_size == 0)
+ {
+ /* Make room for a null element. */
+ s->_raw_size += get_elf_backend_data (abfd)->s->sizeof_rel;
+ ++s->reloc_count;
+ }
+ s->_raw_size += n * get_elf_backend_data (abfd)->s->sizeof_rel;
+}
+
+/* Look through the relocs for a section during the first phase, and
+ allocate space in the global offset table. */
+
+boolean
+mips_elf64_check_relocs (abfd, info, sec, relocs)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
+{
+ const char *name;
+ bfd *dynobj;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ struct mips_elf64_got_info *g;
+ size_t extsymoff;
+ const Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *rel_end;
+ asection *sgot;
+ asection *sreloc;
+ struct elf_backend_data *bed;
+
+ if (info->relocateable)
+ return true;
+
+ dynobj = elf_hash_table (info)->dynobj;
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
+
+ /* Check for the mips16 stub sections. */
+
+ name = bfd_get_section_name (abfd, sec);
+ if (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0)
+ {
+ unsigned long r_symndx;
+
+ /* Look at the relocation information to figure out which symbol
+ this is for. */
+
+ r_symndx = ELF64_R_SYM (relocs->r_info);
+
+ if (r_symndx < extsymoff
+ || sym_hashes[r_symndx - extsymoff] == NULL)
+ {
+ asection *o;
+
+ /* This stub is for a local symbol. This stub will only be
+ needed if there is some relocation in this BFD, other
+ than a 16 bit function call, which refers to this symbol. */
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ Elf_Internal_Rela *sec_relocs;
+ const Elf_Internal_Rela *r, *rend;
+
+ /* We can ignore stub sections when looking for relocs. */
+ if ((o->flags & SEC_RELOC) == 0
+ || o->reloc_count == 0
+ || strncmp (bfd_get_section_name (abfd, o), FN_STUB,
+ sizeof FN_STUB - 1) == 0
+ || strncmp (bfd_get_section_name (abfd, o), CALL_STUB,
+ sizeof CALL_STUB - 1) == 0
+ || strncmp (bfd_get_section_name (abfd, o), CALL_FP_STUB,
+ sizeof CALL_FP_STUB - 1) == 0)
+ continue;
+
+ sec_relocs = (_bfd_elf64_link_read_relocs
+ (abfd, o, (PTR) NULL,
+ (Elf_Internal_Rela *) NULL,
+ info->keep_memory));
+ if (sec_relocs == NULL)
+ return false;
+
+ rend = sec_relocs + o->reloc_count;
+ for (r = sec_relocs; r < rend; r++)
+ if (ELF64_R_SYM (r->r_info) == r_symndx
+ && ELF64_R_TYPE (r->r_info) != R_MIPS16_26)
+ break;
+
+ if (! info->keep_memory)
+ free (sec_relocs);
+
+ if (r < rend)
+ break;
+ }
+
+ if (o == NULL)
+ {
+ /* There is no non-call reloc for this stub, so we do
+ not need it. Since this function is called before
+ the linker maps input sections to output sections, we
+ can easily discard it by setting the SEC_EXCLUDE
+ flag. */
+ sec->flags |= SEC_EXCLUDE;
+ return true;
+ }
+
+ /* Record this stub in an array of local symbol stubs for
+ this BFD. */
+ if (elf_tdata (abfd)->local_stubs == NULL)
+ {
+ unsigned long symcount;
+ asection **n;
+ bfd_size_type amt;
+
+ if (elf_bad_symtab (abfd))
+ symcount = NUM_SHDR_ENTRIES (symtab_hdr);
+ else
+ symcount = symtab_hdr->sh_info;
+ amt = symcount * sizeof (asection *);
+ n = (asection **) bfd_zalloc (abfd, amt);
+ if (n == NULL)
+ return false;
+ elf_tdata (abfd)->local_stubs = n;
+ }
+
+ elf_tdata (abfd)->local_stubs[r_symndx] = sec;
+
+ /* We don't need to set mips16_stubs_seen in this case.
+ That flag is used to see whether we need to look through
+ the global symbol table for stubs. We don't need to set
+ it here, because we just have a local stub. */
+ }
+ else
+ {
+ struct mips_elf64_link_hash_entry *h;
+
+ h = ((struct mips_elf64_link_hash_entry *)
+ sym_hashes[r_symndx - extsymoff]);
+
+ /* H is the symbol this stub is for. */
+
+ h->fn_stub = sec;
+ mips_elf64_hash_table (info)->mips16_stubs_seen = true;
+ }
+ }
+ else if (strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
+ || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
+ {
+ unsigned long r_symndx;
+ struct mips_elf64_link_hash_entry *h;
+ asection **loc;
+
+ /* Look at the relocation information to figure out which symbol
+ this is for. */
+
+ r_symndx = ELF64_R_SYM (relocs->r_info);
+
+ if (r_symndx < extsymoff
+ || sym_hashes[r_symndx - extsymoff] == NULL)
+ {
+ /* This stub was actually built for a static symbol defined
+ in the same file. We assume that all static symbols in
+ mips16 code are themselves mips16, so we can simply
+ discard this stub. Since this function is called before
+ the linker maps input sections to output sections, we can
+ easily discard it by setting the SEC_EXCLUDE flag. */
+ sec->flags |= SEC_EXCLUDE;
+ return true;
+ }
+
+ h = ((struct mips_elf64_link_hash_entry *)
+ sym_hashes[r_symndx - extsymoff]);
+
+ /* H is the symbol this stub is for. */
+
+ if (strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
+ loc = &h->call_fp_stub;
+ else
+ loc = &h->call_stub;
+
+ /* If we already have an appropriate stub for this function, we
+ don't need another one, so we can discard this one. Since
+ this function is called before the linker maps input sections
+ to output sections, we can easily discard it by setting the
+ SEC_EXCLUDE flag. We can also discard this section if we
+ happen to already know that this is a mips16 function; it is
+ not necessary to check this here, as it is checked later, but
+ it is slightly faster to check now. */
+ if (*loc != NULL || h->root.other == STO_MIPS16)
+ {
+ sec->flags |= SEC_EXCLUDE;
+ return true;
+ }
+
+ *loc = sec;
+ mips_elf64_hash_table (info)->mips16_stubs_seen = true;
+ }
+
+ if (dynobj == NULL)
+ {
+ sgot = NULL;
+ g = NULL;
+ }
+ else
+ {
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ if (sgot == NULL)
+ g = NULL;
+ else
+ {
+ BFD_ASSERT (elf_section_data (sgot) != NULL);
+ g = (struct mips_elf64_got_info *) elf_section_data (sgot)->tdata;
+ BFD_ASSERT (g != NULL);
+ }
+ }
+
+ sreloc = NULL;
+ bed = get_elf_backend_data (abfd);
+ rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
+ for (rel = relocs; rel < rel_end; ++rel)
+ {
+ unsigned long r_symndx;
+ int r_type;
+ struct elf_link_hash_entry *h;
+
+ r_symndx = ELF64_R_SYM (rel->r_info);
+ r_type = ELF64_MIPS_R_TYPE (rel->r_info);
+
+ if (r_symndx < extsymoff)
+ h = NULL;
+ else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr))
+ {
+ (*_bfd_error_handler)
+ (_("%s: Malformed reloc detected for section %s"),
+ bfd_archive_filename (abfd), name);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ else
+ {
+ h = sym_hashes[r_symndx - extsymoff];
+
+ /* This may be an indirect symbol created because of a version. */
+ if (h != NULL)
+ {
+ while (h->root.type == bfd_link_hash_indirect)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ }
+ }
+
+ /* Some relocs require a global offset table. */
+ if (dynobj == NULL || sgot == NULL)
+ {
+ switch (r_type)
+ {
+ case R_MIPS_GOT16:
+ case R_MIPS_CALL16:
+ case R_MIPS_CALL_HI16:
+ case R_MIPS_CALL_LO16:
+ case R_MIPS_GOT_HI16:
+ case R_MIPS_GOT_LO16:
+ case R_MIPS_GOT_PAGE:
+ case R_MIPS_GOT_OFST:
+ case R_MIPS_GOT_DISP:
+ if (dynobj == NULL)
+ elf_hash_table (info)->dynobj = dynobj = abfd;
+ if (! mips_elf64_create_got_section (dynobj, info))
+ return false;
+ g = _mips_elf64_got_info (dynobj, &sgot);
+ break;
+
+ case R_MIPS_32:
+ case R_MIPS_REL32:
+ case R_MIPS_64:
+ if (dynobj == NULL
+ && (info->shared || h != NULL)
+ && (sec->flags & SEC_ALLOC) != 0)
+ elf_hash_table (info)->dynobj = dynobj = abfd;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if (!h && (r_type == R_MIPS_CALL_LO16
+ || r_type == R_MIPS_GOT_LO16
+ || r_type == R_MIPS_GOT_DISP))
+ {
+ /* We may need a local GOT entry for this relocation. We
+ don't count R_MIPS_GOT_PAGE because we can estimate the
+ maximum number of pages needed by looking at the size of
+ the segment. Similar comments apply to R_MIPS_GOT16 and
+ R_MIPS_CALL16. We don't count R_MIPS_GOT_HI16, or
+ R_MIPS_CALL_HI16 because these are always followed by an
+ R_MIPS_GOT_LO16 or R_MIPS_CALL_LO16.
+
+ This estimation is very conservative since we can merge
+ duplicate entries in the GOT. In order to be less
+ conservative, we could actually build the GOT here,
+ rather than in relocate_section. */
+ g->local_gotno++;
+ sgot->_raw_size += get_elf_backend_data (dynobj)->s->arch_size / 8;
+ }
+
+ switch (r_type)
+ {
+ case R_MIPS_CALL16:
+ if (h == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("%s: CALL16 reloc at 0x%lx not against global symbol"),
+ bfd_archive_filename (abfd), (unsigned long) rel->r_offset);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ /* Fall through. */
+
+ case R_MIPS_CALL_HI16:
+ case R_MIPS_CALL_LO16:
+ if (h != NULL)
+ {
+ /* This symbol requires a global offset table entry. */
+ if (!mips_elf64_record_global_got_symbol (h, info, g))
+ return false;
+
+ /* We need a stub, not a plt entry for the undefined
+ function. But we record it as if it needs plt. See
+ elf_adjust_dynamic_symbol in elflink.h. */
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ h->type = STT_FUNC;
+ }
+ break;
+
+ case R_MIPS_GOT16:
+ case R_MIPS_GOT_HI16:
+ case R_MIPS_GOT_LO16:
+ case R_MIPS_GOT_DISP:
+ /* This symbol requires a global offset table entry. */
+ if (h && !mips_elf64_record_global_got_symbol (h, info, g))
+ return false;
+ break;
+
+ case R_MIPS_32:
+ case R_MIPS_REL32:
+ case R_MIPS_64:
+ if ((info->shared || h != NULL)
+ && (sec->flags & SEC_ALLOC) != 0)
+ {
+ if (sreloc == NULL)
+ {
+ const char *name = ".rel.dyn";
+
+ sreloc = bfd_get_section_by_name (dynobj, name);
+ if (sreloc == NULL)
+ {
+ sreloc = bfd_make_section (dynobj, name);
+ if (sreloc == NULL
+ || ! bfd_set_section_flags (dynobj, sreloc,
+ (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY))
+ || ! bfd_set_section_alignment (dynobj, sreloc,
+ 4))
+ return false;
+ }
+ }
+#define MIPS_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
+ if (info->shared)
+ {
+ /* When creating a shared object, we must copy these
+ reloc types into the output file as R_MIPS_REL32
+ relocs. We make room for this reloc in the
+ .rel.dyn reloc section. */
+ mips_elf64_allocate_dynamic_relocations (dynobj, 1);
+ if ((sec->flags & MIPS_READONLY_SECTION)
+ == MIPS_READONLY_SECTION)
+ /* We tell the dynamic linker that there are
+ relocations against the text segment. */
+ info->flags |= DF_TEXTREL;
+ }
+ else
+ {
+ struct mips_elf64_link_hash_entry *hmips;
+
+ /* We only need to copy this reloc if the symbol is
+ defined in a dynamic object. */
+ hmips = (struct mips_elf64_link_hash_entry *) h;
+ ++hmips->possibly_dynamic_relocs;
+ if ((sec->flags & MIPS_READONLY_SECTION)
+ == MIPS_READONLY_SECTION)
+ /* We need it to tell the dynamic linker if there
+ are relocations against the text segment. */
+ hmips->readonly_reloc = true;
+ }
+
+ /* Even though we don't directly need a GOT entry for
+ this symbol, a symbol must have a dynamic symbol
+ table index greater that DT_MIPS_GOTSYM if there are
+ dynamic relocations against it. */
+ if (h != NULL
+ && !mips_elf64_record_global_got_symbol (h, info, g))
+ return false;
+ }
+ break;
+
+ case R_MIPS_26:
+ case R_MIPS_GPREL16:
+ case R_MIPS_LITERAL:
+ case R_MIPS_GPREL32:
+ break;
+
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_MIPS_GNU_VTINHERIT:
+ if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return false;
+ break;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_MIPS_GNU_VTENTRY:
+ if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+ return false;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return true;
+}
+
+/* Structure used to pass information to mips_elf64_output_extsym. */
+
+struct extsym_info
+{
+ bfd *abfd;
+ struct bfd_link_info *info;
+ struct ecoff_debug_info *debug;
+ const struct ecoff_debug_swap *swap;
+ boolean failed;
+};
+
+/* This routine is used to write out ECOFF debugging external symbol
+ information. It is called via mips_elf64_link_hash_traverse. The
+ ECOFF external symbol information must match the ELF external
+ symbol information. Unfortunately, at this point we don't know
+ whether a symbol is required by reloc information, so the two
+ tables may wind up being different. We must sort out the external
+ symbol information before we can set the final size of the .mdebug
+ section, and we must set the size of the .mdebug section before we
+ can relocate any sections, and we can't know which symbols are
+ required by relocation until we relocate the sections.
+ Fortunately, it is relatively unlikely that any symbol will be
+ stripped but required by a reloc. In particular, it can not happen
+ when generating a final executable. */
+
+static boolean
+mips_elf64_output_extsym (h, data)
+ struct mips_elf64_link_hash_entry *h;
+ PTR data;
+{
+ struct extsym_info *einfo = (struct extsym_info *) data;
+ boolean strip;
+ asection *sec, *output_section;
+
+ if (h->root.indx == -2)
+ strip = false;
+ else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)
+ && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
+ && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
+ strip = true;
+ else if (einfo->info->strip == strip_all
+ || (einfo->info->strip == strip_some
+ && bfd_hash_lookup (einfo->info->keep_hash,
+ h->root.root.root.string,
+ false, false) == NULL))
+ strip = true;
+ else
+ strip = false;
+
+ if (strip)
+ return true;
+
+ if (h->esym.ifd == -2)
+ {
+ h->esym.jmptbl = 0;
+ h->esym.cobol_main = 0;
+ h->esym.weakext = 0;
+ h->esym.reserved = 0;
+ h->esym.ifd = ifdNil;
+ h->esym.asym.value = 0;
+ h->esym.asym.st = stGlobal;
+
+ if (h->root.root.type == bfd_link_hash_undefined
+ || h->root.root.type == bfd_link_hash_undefweak)
+ {
+ const char *name;
+
+ /* Use undefined class. Also, set class and type for some
+ special symbols. */
+ name = h->root.root.root.string;
+ h->esym.asym.sc = scUndefined;
+ }
+ else if (h->root.root.type != bfd_link_hash_defined
+ && h->root.root.type != bfd_link_hash_defweak)
+ h->esym.asym.sc = scAbs;
+ else
+ {
+ const char *name;
+
+ sec = h->root.root.u.def.section;
+ output_section = sec->output_section;
+
+ /* When making a shared library and symbol h is the one from
+ the another shared library, OUTPUT_SECTION may be null. */
+ if (output_section == NULL)
+ h->esym.asym.sc = scUndefined;
+ else
+ {
+ name = bfd_section_name (output_section->owner, output_section);
+
+ if (strcmp (name, ".text") == 0)
+ h->esym.asym.sc = scText;
+ else if (strcmp (name, ".data") == 0)
+ h->esym.asym.sc = scData;
+ else if (strcmp (name, ".sdata") == 0)
+ h->esym.asym.sc = scSData;
+ else if (strcmp (name, ".rodata") == 0
+ || strcmp (name, ".rdata") == 0)
+ h->esym.asym.sc = scRData;
+ else if (strcmp (name, ".bss") == 0)
+ h->esym.asym.sc = scBss;
+ else if (strcmp (name, ".sbss") == 0)
+ h->esym.asym.sc = scSBss;
+ else if (strcmp (name, ".init") == 0)
+ h->esym.asym.sc = scInit;
+ else if (strcmp (name, ".fini") == 0)
+ h->esym.asym.sc = scFini;
+ else
+ h->esym.asym.sc = scAbs;
+ }
+ }
+
+ h->esym.asym.reserved = 0;
+ h->esym.asym.index = indexNil;
+ }
+
+ if (h->root.root.type == bfd_link_hash_common)
+ h->esym.asym.value = h->root.root.u.c.size;
+ else if (h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ {
+ if (h->esym.asym.sc == scCommon)
+ h->esym.asym.sc = scBss;
+ else if (h->esym.asym.sc == scSCommon)
+ h->esym.asym.sc = scSBss;
+
+ sec = h->root.root.u.def.section;
+ output_section = sec->output_section;
+ if (output_section != NULL)
+ h->esym.asym.value = (h->root.root.u.def.value
+ + sec->output_offset
+ + output_section->vma);
+ else
+ h->esym.asym.value = 0;
+ }
+ else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ {
+ struct mips_elf64_link_hash_entry *hd = h;
+ boolean no_fn_stub = h->no_fn_stub;
+
+ while (hd->root.root.type == bfd_link_hash_indirect)
+ {
+ hd = (struct mips_elf64_link_hash_entry *)h->root.root.u.i.link;
+ no_fn_stub = no_fn_stub || hd->no_fn_stub;
+ }
+
+ if (!no_fn_stub)
+ {
+ /* Set type and value for a symbol with a function stub. */
+ h->esym.asym.st = stProc;
+ sec = hd->root.root.u.def.section;
+ if (sec == NULL)
+ h->esym.asym.value = 0;
+ else
+ {
+ output_section = sec->output_section;
+ if (output_section != NULL)
+ h->esym.asym.value = (hd->root.plt.offset
+ + sec->output_offset
+ + output_section->vma);
+ else
+ h->esym.asym.value = 0;
+ }
+#if 0 /* FIXME? */
+ h->esym.ifd = 0;
+#endif
+ }
+ }
- if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, &d->rel_hdr))
- return false;
- if (d->rel_hdr2 != NULL)
+ if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
+ h->root.root.root.string,
+ &h->esym))
{
- if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols,
- d->rel_hdr2))
- return false;
+ einfo->failed = true;
+ return false;
}
return true;
}
-/* Write out the relocations. */
+/* Swap an entry in a .gptab section. Note that these routines rely
+ on the equivalence of the two elements of the union. */
static void
-mips_elf64_write_relocs (abfd, sec, data)
+mips_elf64_swap_gptab_in (abfd, ex, in)
bfd *abfd;
- asection *sec;
- PTR data;
+ const Elf32_External_gptab *ex;
+ Elf32_gptab *in;
{
- boolean *failedp = (boolean *) data;
- unsigned int count;
- Elf_Internal_Shdr *rela_hdr;
- Elf64_Mips_External_Rela *ext_rela;
- unsigned int idx;
- asymbol *last_sym = 0;
- int last_sym_idx = 0;
-
- /* If we have already failed, don't do anything. */
- if (*failedp)
- return;
-
- if ((sec->flags & SEC_RELOC) == 0)
- return;
-
- /* The linker backend writes the relocs out itself, and sets the
- reloc_count field to zero to inhibit writing them here. Also,
- sometimes the SEC_RELOC flag gets set even when there aren't any
- relocs. */
- if (sec->reloc_count == 0)
- return;
+ in->gt_entry.gt_g_value = H_GET_32 (abfd, ex->gt_entry.gt_g_value);
+ in->gt_entry.gt_bytes = H_GET_32 (abfd, ex->gt_entry.gt_bytes);
+}
- /* We can combine up to three relocs that refer to the same address
- if the latter relocs have no associated symbol. */
- count = 0;
- for (idx = 0; idx < sec->reloc_count; idx++)
- {
- bfd_vma addr;
- unsigned int i;
+static void
+mips_elf64_swap_gptab_out (abfd, in, ex)
+ bfd *abfd;
+ const Elf32_gptab *in;
+ Elf32_External_gptab *ex;
+{
+ H_PUT_32 (abfd, (bfd_vma) in->gt_entry.gt_g_value,
+ ex->gt_entry.gt_g_value);
+ H_PUT_32 (abfd, (bfd_vma) in->gt_entry.gt_bytes,
+ ex->gt_entry.gt_bytes);
+}
- ++count;
+/* A comparison routine used to sort .gptab entries. */
- addr = sec->orelocation[idx]->address;
- for (i = 0; i < 2; i++)
- {
- arelent *r;
+static int
+gptab_compare (p1, p2)
+ const PTR p1;
+ const PTR p2;
+{
+ const Elf32_gptab *a1 = (const Elf32_gptab *) p1;
+ const Elf32_gptab *a2 = (const Elf32_gptab *) p2;
- if (idx + 1 >= sec->reloc_count)
- break;
- r = sec->orelocation[idx + 1];
- if (r->address != addr
- || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
- || (*r->sym_ptr_ptr)->value != 0)
- break;
+ return a1->gt_entry.gt_g_value - a2->gt_entry.gt_g_value;
+}
- /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
+/* We need to use a special link routine to handle the .mdebug section.
+ We need to merge all instances of this section together, not write
+ them all out sequentially. */
- ++idx;
- }
+boolean
+mips_elf64_final_link (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ asection **secpp;
+ asection *o;
+ struct bfd_link_order *p;
+ asection *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
+ struct ecoff_debug_info debug;
+ const struct ecoff_debug_swap *swap
+ = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
+ HDRR *symhdr = &debug.symbolic_header;
+ PTR mdebug_handle = NULL;
+ asection *s;
+ EXTR esym;
+ unsigned int i;
+ static const char * const secname[] =
+ { ".text", ".init", ".fini", ".data",
+ ".rodata", ".sdata", ".sbss", ".bss" };
+ static const int sc[] = { scText, scInit, scFini, scData,
+ scRData, scSData, scSBss, scBss };
+
+ /* If all the things we linked together were PIC, but we're
+ producing an executable (rather than a shared object), then the
+ resulting file is CPIC (i.e., it calls PIC code.) */
+ if (!info->shared
+ && !info->relocateable
+ && elf_elfheader (abfd)->e_flags & EF_MIPS_PIC)
+ {
+ elf_elfheader (abfd)->e_flags &= ~EF_MIPS_PIC;
+ elf_elfheader (abfd)->e_flags |= EF_MIPS_CPIC;
}
- rela_hdr = &elf_section_data (sec)->rel_hdr;
-
- rela_hdr->sh_size = rela_hdr->sh_entsize * count;
- rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
- if (rela_hdr->contents == NULL)
+ /* We'd carefully arranged the dynamic symbol indices, and then the
+ generic size_dynamic_sections renumbered them out from under us.
+ Rather than trying somehow to prevent the renumbering, just do
+ the sort again. */
+ if (elf_hash_table (info)->dynamic_sections_created)
{
- *failedp = true;
- return;
+ bfd *dynobj;
+ asection *got;
+ struct mips_elf64_got_info *g;
+
+ /* When we resort, we must tell mips_elf64_sort_hash_table what
+ the lowest index it may use is. That's the number of section
+ symbols we're going to add. The generic ELF linker only
+ adds these symbols when building a shared object. Note that
+ we count the sections after (possibly) removing the .options
+ section above. */
+ if (!mips_elf64_sort_hash_table (info, (info->shared
+ ? bfd_count_sections (abfd) + 1
+ : 1)))
+ return false;
+
+ /* Make sure we didn't grow the global .got region. */
+ dynobj = elf_hash_table (info)->dynobj;
+ got = bfd_get_section_by_name (dynobj, ".got");
+ g = (struct mips_elf64_got_info *) elf_section_data (got)->tdata;
+
+ if (g->global_gotsym != NULL)
+ BFD_ASSERT ((elf_hash_table (info)->dynsymcount
+ - g->global_gotsym->dynindx)
+ <= g->global_gotno);
}
- ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
- for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
+ /* We include .MIPS.options, even though we don't process it quite right.
+ (Some entries are supposed to be merged.) At IRIX6 empirically we seem
+ to be better off including it than not. */
+ for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next)
{
- arelent *ptr;
- Elf64_Mips_Internal_Rela int_rela;
- asymbol *sym;
- int n;
- unsigned int i;
+ if (strcmp ((*secpp)->name, ".MIPS.options") == 0)
+ {
+ for (p = (*secpp)->link_order_head; p != NULL; p = p->next)
+ if (p->type == bfd_indirect_link_order)
+ p->u.indirect.section->flags &=~ SEC_HAS_CONTENTS;
+ (*secpp)->link_order_head = NULL;
+ bfd_section_list_remove (abfd, secpp);
+ --abfd->section_count;
+
+ break;
+ }
+ }
- ptr = sec->orelocation[idx];
+ /* Get a value for the GP register. */
+ if (elf_gp (abfd) == 0)
+ {
+ struct bfd_link_hash_entry *h;
+
+ h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
+ if (h != (struct bfd_link_hash_entry *) NULL
+ && h->type == bfd_link_hash_defined)
+ elf_gp (abfd) = (h->u.def.value
+ + h->u.def.section->output_section->vma
+ + h->u.def.section->output_offset);
+ else if (info->relocateable)
+ {
+ bfd_vma lo = MINUS_ONE;
- /* The address of an ELF reloc is section relative for an object
- file, and absolute for an executable file or shared library.
- The address of a BFD reloc is always section relative. */
- if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
- int_rela.r_offset = ptr->address;
- else
- int_rela.r_offset = ptr->address + sec->vma;
+ /* Find the GP-relative section with the lowest offset. */
+ for (o = abfd->sections; o != NULL; o = o->next)
+ if (o->vma < lo
+ && (elf_section_data (o)->this_hdr.sh_flags & SHF_MIPS_GPREL))
+ lo = o->vma;
- sym = *ptr->sym_ptr_ptr;
- if (sym == last_sym)
- n = last_sym_idx;
+ /* And calculate GP relative to that. */
+ elf_gp (abfd) = (lo + 0x7ff0);
+ }
else
{
- last_sym = sym;
- n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
- if (n < 0)
- {
- *failedp = true;
- return;
- }
- last_sym_idx = n;
+ /* If the relocate_section function needs to do a reloc
+ involving the GP value, it should make a reloc_dangerous
+ callback to warn that GP is not defined. */
}
+ }
- int_rela.r_sym = n;
+ /* Go through the sections and collect the .mdebug information. */
+ mdebug_sec = NULL;
+ gptab_data_sec = NULL;
+ gptab_bss_sec = NULL;
+ for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ {
+ if (strcmp (o->name, ".mdebug") == 0)
+ {
+ struct extsym_info einfo;
+ bfd_vma last;
+
+ /* We have found the .mdebug section in the output file.
+ Look through all the link_orders comprising it and merge
+ the information together. */
+ symhdr->magic = swap->sym_magic;
+ /* FIXME: What should the version stamp be? */
+ symhdr->vstamp = 0;
+ symhdr->ilineMax = 0;
+ symhdr->cbLine = 0;
+ symhdr->idnMax = 0;
+ symhdr->ipdMax = 0;
+ symhdr->isymMax = 0;
+ symhdr->ioptMax = 0;
+ symhdr->iauxMax = 0;
+ symhdr->issMax = 0;
+ symhdr->issExtMax = 0;
+ symhdr->ifdMax = 0;
+ symhdr->crfd = 0;
+ symhdr->iextMax = 0;
+
+ /* We accumulate the debugging information itself in the
+ debug_info structure. */
+ debug.line = NULL;
+ debug.external_dnr = NULL;
+ debug.external_pdr = NULL;
+ debug.external_sym = NULL;
+ debug.external_opt = NULL;
+ debug.external_aux = NULL;
+ debug.ss = NULL;
+ debug.ssext = debug.ssext_end = NULL;
+ debug.external_fdr = NULL;
+ debug.external_rfd = NULL;
+ debug.external_ext = debug.external_ext_end = NULL;
+
+ mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
+ if (mdebug_handle == (PTR) NULL)
+ return false;
- int_rela.r_addend = ptr->addend;
+ esym.jmptbl = 0;
+ esym.cobol_main = 0;
+ esym.weakext = 0;
+ esym.reserved = 0;
+ esym.ifd = ifdNil;
+ esym.asym.iss = issNil;
+ esym.asym.st = stLocal;
+ esym.asym.reserved = 0;
+ esym.asym.index = indexNil;
+ last = 0;
+ for (i = 0; i < sizeof (secname) / sizeof (secname[0]); i++)
+ {
+ esym.asym.sc = sc[i];
+ s = bfd_get_section_by_name (abfd, secname[i]);
+ if (s != NULL)
+ {
+ esym.asym.value = s->vma;
+ last = s->vma + s->_raw_size;
+ }
+ else
+ esym.asym.value = last;
+ if (!bfd_ecoff_debug_one_external (abfd, &debug, swap,
+ secname[i], &esym))
+ return false;
+ }
+
+ for (p = o->link_order_head;
+ p != (struct bfd_link_order *) NULL;
+ p = p->next)
+ {
+ asection *input_section;
+ bfd *input_bfd;
+ const struct ecoff_debug_swap *input_swap;
+ struct ecoff_debug_info input_debug;
+ char *eraw_src;
+ char *eraw_end;
+
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_fill_link_order)
+ continue;
+ abort ();
+ }
- int_rela.r_ssym = RSS_UNDEF;
+ input_section = p->u.indirect.section;
+ input_bfd = input_section->owner;
- if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
- && ! _bfd_elf_validate_reloc (abfd, ptr))
- {
- *failedp = true;
- return;
- }
+ if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
+ || (get_elf_backend_data (input_bfd)
+ ->elf_backend_ecoff_debug_swap) == NULL)
+ {
+ /* I don't know what a non MIPS ELF bfd would be
+ doing with a .mdebug section, but I don't really
+ want to deal with it. */
+ continue;
+ }
- int_rela.r_type = ptr->howto->type;
- int_rela.r_type2 = (int) R_MIPS_NONE;
- int_rela.r_type3 = (int) R_MIPS_NONE;
+ input_swap = (get_elf_backend_data (input_bfd)
+ ->elf_backend_ecoff_debug_swap);
+
+ BFD_ASSERT (p->size == input_section->_raw_size);
+
+ /* The ECOFF linking code expects that we have already
+ read in the debugging information and set up an
+ ecoff_debug_info structure, so we do that now. */
+ if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section,
+ &input_debug))
+ return false;
+
+ if (! (bfd_ecoff_debug_accumulate
+ (mdebug_handle, abfd, &debug, swap, input_bfd,
+ &input_debug, input_swap, info)))
+ return false;
+
+ /* Loop through the external symbols. For each one with
+ interesting information, try to find the symbol in
+ the linker global hash table and save the information
+ for the output external symbols. */
+ eraw_src = input_debug.external_ext;
+ eraw_end = (eraw_src
+ + (input_debug.symbolic_header.iextMax
+ * input_swap->external_ext_size));
+ for (;
+ eraw_src < eraw_end;
+ eraw_src += input_swap->external_ext_size)
+ {
+ EXTR ext;
+ const char *name;
+ struct mips_elf64_link_hash_entry *h;
+
+ (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
+ if (ext.asym.sc == scNil
+ || ext.asym.sc == scUndefined
+ || ext.asym.sc == scSUndefined)
+ continue;
+
+ name = input_debug.ssext + ext.asym.iss;
+ h = mips_elf64_link_hash_lookup (mips_elf64_hash_table (info),
+ name, false, false, true);
+ if (h == NULL || h->esym.ifd != -2)
+ continue;
+
+ if (ext.ifd != -1)
+ {
+ BFD_ASSERT (ext.ifd
+ < input_debug.symbolic_header.ifdMax);
+ ext.ifd = input_debug.ifdmap[ext.ifd];
+ }
- for (i = 0; i < 2; i++)
- {
- arelent *r;
+ h->esym = ext;
+ }
- if (idx + 1 >= sec->reloc_count)
- break;
- r = sec->orelocation[idx + 1];
- if (r->address != ptr->address
- || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
- || (*r->sym_ptr_ptr)->value != 0)
- break;
+ /* Free up the information we just read. */
+ free (input_debug.line);
+ free (input_debug.external_dnr);
+ free (input_debug.external_pdr);
+ free (input_debug.external_sym);
+ free (input_debug.external_opt);
+ free (input_debug.external_aux);
+ free (input_debug.ss);
+ free (input_debug.ssext);
+ free (input_debug.external_fdr);
+ free (input_debug.external_rfd);
+ free (input_debug.external_ext);
+
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &=~ SEC_HAS_CONTENTS;
+ }
- /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
+ /* Build the external symbol information. */
+ einfo.abfd = abfd;
+ einfo.info = info;
+ einfo.debug = &debug;
+ einfo.swap = swap;
+ einfo.failed = false;
+ mips_elf64_link_hash_traverse (mips_elf64_hash_table (info),
+ mips_elf64_output_extsym,
+ (PTR) &einfo);
+ if (einfo.failed)
+ return false;
- if (i == 0)
- int_rela.r_type2 = r->howto->type;
- else
- int_rela.r_type3 = r->howto->type;
+ /* Set the size of the .mdebug section. */
+ o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap);
- ++idx;
- }
+ /* Skip this section later on (I don't think this currently
+ matters, but someday it might). */
+ o->link_order_head = (struct bfd_link_order *) NULL;
- mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
- }
+ mdebug_sec = o;
+ }
- BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
- == count);
-}
-\f
-/* Irix 6 defines a brand new archive map format, so that they can
- have archives more than 4 GB in size. */
+ if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0)
+ {
+ const char *subname;
+ unsigned int c;
+ Elf32_gptab *tab;
+ Elf32_External_gptab *ext_tab;
+ unsigned int i;
+
+ /* The .gptab.sdata and .gptab.sbss sections hold
+ information describing how the small data area would
+ change depending upon the -G switch. These sections
+ not used in executables files. */
+ if (! info->relocateable)
+ {
+ asection **secpp;
-/* Read an Irix 6 armap. */
+ for (p = o->link_order_head;
+ p != (struct bfd_link_order *) NULL;
+ p = p->next)
+ {
+ asection *input_section;
-static boolean
-mips_elf64_slurp_armap (abfd)
- bfd *abfd;
-{
- struct artdata *ardata = bfd_ardata (abfd);
- char nextname[17];
- file_ptr arhdrpos;
- bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
- struct areltdata *mapdata;
- bfd_byte int_buf[8];
- char *stringbase;
- bfd_byte *raw_armap = NULL;
- carsym *carsyms;
-
- ardata->symdefs = NULL;
-
- /* Get the name of the first element. */
- arhdrpos = bfd_tell (abfd);
- i = bfd_read ((PTR) nextname, 1, 16, abfd);
- if (i == 0)
- return true;
- if (i != 16)
- return false;
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_fill_link_order)
+ continue;
+ abort ();
+ }
- if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
- return false;
+ input_section = p->u.indirect.section;
- /* Archives with traditional armaps are still permitted. */
- if (strncmp (nextname, "/ ", 16) == 0)
- return bfd_slurp_armap (abfd);
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &=~ SEC_HAS_CONTENTS;
+ }
- if (strncmp (nextname, "/SYM64/ ", 16) != 0)
- {
- bfd_has_map (abfd) = false;
- return true;
- }
+ /* Skip this section later on (I don't think this
+ currently matters, but someday it might). */
+ o->link_order_head = (struct bfd_link_order *) NULL;
- mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
- if (mapdata == NULL)
- return false;
- parsed_size = mapdata->parsed_size;
- bfd_release (abfd, (PTR) mapdata);
+ /* Really remove the section. */
+ for (secpp = &abfd->sections;
+ *secpp != o;
+ secpp = &(*secpp)->next)
+ ;
+ bfd_section_list_remove (abfd, secpp);
+ --abfd->section_count;
- if (bfd_read (int_buf, 1, 8, abfd) != 8)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_malformed_archive);
- return false;
- }
+ continue;
+ }
- nsymz = bfd_getb64 (int_buf);
- stringsize = parsed_size - 8 * nsymz - 8;
+ /* There is one gptab for initialized data, and one for
+ uninitialized data. */
+ if (strcmp (o->name, ".gptab.sdata") == 0)
+ gptab_data_sec = o;
+ else if (strcmp (o->name, ".gptab.sbss") == 0)
+ gptab_bss_sec = o;
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%s: illegal section name `%s'"),
+ bfd_archive_filename (abfd), o->name);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return false;
+ }
- carsym_size = nsymz * sizeof (carsym);
- ptrsize = 8 * nsymz;
+ /* The linker script always combines .gptab.data and
+ .gptab.sdata into .gptab.sdata, and likewise for
+ .gptab.bss and .gptab.sbss. It is possible that there is
+ no .sdata or .sbss section in the output file, in which
+ case we must change the name of the output section. */
+ subname = o->name + sizeof ".gptab" - 1;
+ if (bfd_get_section_by_name (abfd, subname) == NULL)
+ {
+ if (o == gptab_data_sec)
+ o->name = ".gptab.data";
+ else
+ o->name = ".gptab.bss";
+ subname = o->name + sizeof ".gptab" - 1;
+ BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL);
+ }
- ardata->symdefs = (carsym *) bfd_zalloc (abfd, carsym_size + stringsize + 1);
- if (ardata->symdefs == NULL)
- return false;
- carsyms = ardata->symdefs;
- stringbase = ((char *) ardata->symdefs) + carsym_size;
+ /* Set up the first entry. */
+ c = 1;
+ tab = (Elf32_gptab *) bfd_malloc (c * sizeof (Elf32_gptab));
+ if (tab == NULL)
+ return false;
+ tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd);
+ tab[0].gt_header.gt_unused = 0;
- raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize);
- if (raw_armap == NULL)
- goto error_return;
+ /* Combine the input sections. */
+ for (p = o->link_order_head;
+ p != (struct bfd_link_order *) NULL;
+ p = p->next)
+ {
+ asection *input_section;
+ bfd *input_bfd;
+ bfd_size_type size;
+ unsigned long last;
+ bfd_size_type gpentry;
- if (bfd_read (raw_armap, 1, ptrsize, abfd) != ptrsize
- || bfd_read (stringbase, 1, stringsize, abfd) != stringsize)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_malformed_archive);
- goto error_return;
- }
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_fill_link_order)
+ continue;
+ abort ();
+ }
- for (i = 0; i < nsymz; i++)
- {
- carsyms->file_offset = bfd_getb64 (raw_armap + i * 8);
- carsyms->name = stringbase;
- stringbase += strlen (stringbase) + 1;
- ++carsyms;
- }
- *stringbase = '\0';
+ input_section = p->u.indirect.section;
+ input_bfd = input_section->owner;
+
+ /* Combine the gptab entries for this input section one
+ by one. We know that the input gptab entries are
+ sorted by ascending -G value. */
+ size = bfd_section_size (input_bfd, input_section);
+ last = 0;
+ for (gpentry = sizeof (Elf32_External_gptab);
+ gpentry < size;
+ gpentry += sizeof (Elf32_External_gptab))
+ {
+ Elf32_External_gptab ext_gptab;
+ Elf32_gptab int_gptab;
+ unsigned long val;
+ unsigned long add;
+ boolean exact;
+ unsigned int look;
+
+ if (! (bfd_get_section_contents
+ (input_bfd, input_section, (PTR) &ext_gptab,
+ gpentry, sizeof (Elf32_External_gptab))))
+ {
+ free (tab);
+ return false;
+ }
- ardata->symdef_count = nsymz;
- ardata->first_file_filepos = arhdrpos + sizeof (struct ar_hdr) + parsed_size;
+ mips_elf64_swap_gptab_in (input_bfd, &ext_gptab,
+ &int_gptab);
+ val = int_gptab.gt_entry.gt_g_value;
+ add = int_gptab.gt_entry.gt_bytes - last;
- bfd_has_map (abfd) = true;
- bfd_release (abfd, raw_armap);
+ exact = false;
+ for (look = 1; look < c; look++)
+ {
+ if (tab[look].gt_entry.gt_g_value >= val)
+ tab[look].gt_entry.gt_bytes += add;
- return true;
+ if (tab[look].gt_entry.gt_g_value == val)
+ exact = true;
+ }
- error_return:
- if (raw_armap != NULL)
- bfd_release (abfd, raw_armap);
- if (ardata->symdefs != NULL)
- bfd_release (abfd, ardata->symdefs);
- return false;
-}
+ if (! exact)
+ {
+ Elf32_gptab *new_tab;
+ unsigned int max;
+
+ /* We need a new table entry. */
+ new_tab = ((Elf32_gptab *)
+ bfd_realloc ((PTR) tab,
+ (c + 1) * sizeof (Elf32_gptab)));
+ if (new_tab == NULL)
+ {
+ free (tab);
+ return false;
+ }
+ tab = new_tab;
+ tab[c].gt_entry.gt_g_value = val;
+ tab[c].gt_entry.gt_bytes = add;
+
+ /* Merge in the size for the next smallest -G
+ value, since that will be implied by this new
+ value. */
+ max = 0;
+ for (look = 1; look < c; look++)
+ {
+ if (tab[look].gt_entry.gt_g_value < val
+ && (max == 0
+ || (tab[look].gt_entry.gt_g_value
+ > tab[max].gt_entry.gt_g_value)))
+ max = look;
+ }
+ if (max != 0)
+ tab[c].gt_entry.gt_bytes +=
+ tab[max].gt_entry.gt_bytes;
+
+ ++c;
+ }
-/* Write out an Irix 6 armap. The Irix 6 tools are supposed to be
- able to handle ordinary ELF armaps, but at least on Irix 6.2 the
- linker crashes. */
+ last = int_gptab.gt_entry.gt_bytes;
+ }
-static boolean
-mips_elf64_write_armap (arch, elength, map, symbol_count, stridx)
- bfd *arch;
- unsigned int elength;
- struct orl *map;
- unsigned int symbol_count;
- int stridx;
-{
- unsigned int ranlibsize = (symbol_count * 8) + 8;
- unsigned int stringsize = stridx;
- unsigned int mapsize = stringsize + ranlibsize;
- file_ptr archive_member_file_ptr;
- bfd *current = arch->archive_head;
- unsigned int count;
- struct ar_hdr hdr;
- unsigned int i;
- int padding;
- bfd_byte buf[8];
-
- padding = BFD_ALIGN (mapsize, 8) - mapsize;
- mapsize += padding;
-
- /* work out where the first object file will go in the archive */
- archive_member_file_ptr = (mapsize
- + elength
- + sizeof (struct ar_hdr)
- + SARMAG);
-
- memset ((char *) (&hdr), 0, sizeof (struct ar_hdr));
- strcpy (hdr.ar_name, "/SYM64/");
- sprintf (hdr.ar_size, "%-10d", (int) mapsize);
- sprintf (hdr.ar_date, "%ld", (long) time (NULL));
- /* This, at least, is what Intel coff sets the values to.: */
- sprintf ((hdr.ar_uid), "%d", 0);
- sprintf ((hdr.ar_gid), "%d", 0);
- sprintf ((hdr.ar_mode), "%-7o", (unsigned) 0);
- strncpy (hdr.ar_fmag, ARFMAG, 2);
-
- for (i = 0; i < sizeof (struct ar_hdr); i++)
- if (((char *) (&hdr))[i] == '\0')
- (((char *) (&hdr))[i]) = ' ';
-
- /* Write the ar header for this item and the number of symbols */
-
- if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), arch)
- != sizeof (struct ar_hdr))
- return false;
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &=~ SEC_HAS_CONTENTS;
+ }
- bfd_putb64 (symbol_count, buf);
- if (bfd_write (buf, 1, 8, arch) != 8)
- return false;
+ /* The table must be sorted by -G value. */
+ if (c > 2)
+ qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare);
- /* Two passes, first write the file offsets for each symbol -
- remembering that each offset is on a two byte boundary. */
+ /* Swap out the table. */
+ ext_tab = ((Elf32_External_gptab *)
+ bfd_alloc (abfd, c * sizeof (Elf32_External_gptab)));
+ if (ext_tab == NULL)
+ {
+ free (tab);
+ return false;
+ }
- /* Write out the file offset for the file associated with each
- symbol, and remember to keep the offsets padded out. */
+ for (i = 0; i < c; i++)
+ mips_elf64_swap_gptab_out (abfd, tab + i, ext_tab + i);
+ free (tab);
- current = arch->archive_head;
- count = 0;
- while (current != (bfd *) NULL && count < symbol_count)
- {
- /* For each symbol which is used defined in this object, write out
- the object file's address in the archive */
+ o->_raw_size = c * sizeof (Elf32_External_gptab);
+ o->contents = (bfd_byte *) ext_tab;
- while (((bfd *) (map[count]).pos) == current)
- {
- bfd_putb64 (archive_member_file_ptr, buf);
- if (bfd_write (buf, 1, 8, arch) != 8)
- return false;
- count++;
+ /* Skip this section later on (I don't think this currently
+ matters, but someday it might). */
+ o->link_order_head = (struct bfd_link_order *) NULL;
}
- /* Add size of this archive entry */
- archive_member_file_ptr += (arelt_size (current)
- + sizeof (struct ar_hdr));
- /* remember about the even alignment */
- archive_member_file_ptr += archive_member_file_ptr % 2;
- current = current->next;
}
- /* now write the strings themselves */
- for (count = 0; count < symbol_count; count++)
+ /* Invoke the regular ELF backend linker to do all the work. */
+ if (!bfd_elf64_bfd_final_link (abfd, info))
+ return false;
+
+ /* Now write out the computed sections. */
+ if (mdebug_sec != (asection *) NULL)
{
- size_t len = strlen (*map[count].name) + 1;
+ BFD_ASSERT (abfd->output_has_begun);
+ if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
+ swap, info,
+ mdebug_sec->filepos))
+ return false;
- if (bfd_write (*map[count].name, 1, len, arch) != len)
+ bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
+ }
+ if (gptab_data_sec != (asection *) NULL)
+ {
+ if (! bfd_set_section_contents (abfd, gptab_data_sec,
+ gptab_data_sec->contents,
+ (file_ptr) 0,
+ gptab_data_sec->_raw_size))
return false;
}
- /* The spec says that this should be padded to an 8 byte boundary.
- However, the Irix 6.2 tools do not appear to do this. */
- while (padding != 0)
+ if (gptab_bss_sec != (asection *) NULL)
{
- if (bfd_write ("", 1, 1, arch) != 1)
+ if (! bfd_set_section_contents (abfd, gptab_bss_sec,
+ gptab_bss_sec->contents,
+ (file_ptr) 0,
+ gptab_bss_sec->_raw_size))
return false;
- --padding;
}
return true;
mips_elf64_be_swap_reloca_out
};
-#define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec
-#define TARGET_LITTLE_NAME "elf64-littlemips"
-#define TARGET_BIG_SYM bfd_elf64_bigmips_vec
-#define TARGET_BIG_NAME "elf64-bigmips"
#define ELF_ARCH bfd_arch_mips
#define ELF_MACHINE_CODE EM_MIPS
#define elf_backend_collect true
#define elf_backend_type_change_ok true
#define elf_backend_can_gc_sections true
-#define elf_backend_size_info mips_elf64_size_info
+#define elf_info_to_howto mips_elf64_info_to_howto_rela
+#define elf_info_to_howto_rel mips_elf64_info_to_howto_rel
#define elf_backend_object_p _bfd_mips_elf_object_p
+#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
+#define elf_backend_section_processing _bfd_mips_elf_section_processing
#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
#define elf_backend_section_from_bfd_section \
_bfd_mips_elf_section_from_bfd_section
-#define elf_backend_section_processing _bfd_mips_elf_section_processing
-#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
-#define elf_backend_additional_program_headers \
- _bfd_mips_elf_additional_program_headers
-#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
-#define elf_backend_final_write_processing \
- _bfd_mips_elf_final_write_processing
-#define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
+#define elf_backend_link_output_symbol_hook \
+ _bfd_mips_elf_link_output_symbol_hook
#define elf_backend_create_dynamic_sections \
- _bfd_mips_elf_create_dynamic_sections
-#define elf_backend_check_relocs _bfd_mips_elf_check_relocs
+ mips_elf64_create_dynamic_sections
+#define elf_backend_check_relocs mips_elf64_check_relocs
#define elf_backend_adjust_dynamic_symbol \
- _bfd_mips_elf_adjust_dynamic_symbol
+ mips_elf64_adjust_dynamic_symbol
#define elf_backend_always_size_sections \
- _bfd_mips_elf_always_size_sections
+ mips_elf64_always_size_sections
#define elf_backend_size_dynamic_sections \
- _bfd_mips_elf_size_dynamic_sections
-#define elf_backend_relocate_section _bfd_mips_elf_relocate_section
-#define elf_backend_link_output_symbol_hook \
- _bfd_mips_elf_link_output_symbol_hook
+ mips_elf64_size_dynamic_sections
+#define elf_backend_relocate_section mips_elf64_relocate_section
#define elf_backend_finish_dynamic_symbol \
- _bfd_mips_elf_finish_dynamic_symbol
+ mips_elf64_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
- _bfd_mips_elf_finish_dynamic_sections
-#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
-#define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO)
+ mips_elf64_finish_dynamic_sections
+#define elf_backend_final_write_processing \
+ _bfd_mips_elf_final_write_processing
+#define elf_backend_additional_program_headers \
+ mips_elf64_additional_program_headers
+#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
+#define elf_backend_gc_mark_hook mips_elf64_gc_mark_hook
+#define elf_backend_gc_sweep_hook mips_elf64_gc_sweep_hook
+#define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
+#define elf_backend_size_info mips_elf64_size_info
+
+#define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
#define elf_backend_plt_header_size 0
-#define elf_backend_may_use_rel_p 1
+
+/* MIPS ELF64 can use a mixture of REL and RELA, but some Relocations
+ * work better/work only in RELA, so we default to this. */
+#define elf_backend_may_use_rel_p 1
+#define elf_backend_may_use_rela_p 1
+#define elf_backend_default_use_rela_p 1
/* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit
MIPS-specific function only applies to IRIX5, which had no 64-bit
#define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line
#define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents
#define bfd_elf64_bfd_link_hash_table_create \
- _bfd_mips_elf_link_hash_table_create
-#define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link
-#define bfd_elf64_bfd_copy_private_bfd_data \
- _bfd_mips_elf_copy_private_bfd_data
+ mips_elf64_link_hash_table_create
+#define bfd_elf64_bfd_final_link mips_elf64_final_link
#define bfd_elf64_bfd_merge_private_bfd_data \
_bfd_mips_elf_merge_private_bfd_data
#define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags
#define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound
#define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup
#define bfd_elf64_archive_functions
-#define bfd_elf64_archive_slurp_armap mips_elf64_slurp_armap
+extern boolean bfd_elf64_archive_slurp_armap
+ PARAMS((bfd *));
+extern boolean bfd_elf64_archive_write_armap
+ PARAMS((bfd *, unsigned int, struct orl *, unsigned int, int));
#define bfd_elf64_archive_slurp_extended_name_table \
_bfd_archive_coff_slurp_extended_name_table
#define bfd_elf64_archive_construct_extended_name_table \
_bfd_archive_coff_construct_extended_name_table
#define bfd_elf64_archive_truncate_arname \
_bfd_archive_coff_truncate_arname
-#define bfd_elf64_archive_write_armap mips_elf64_write_armap
#define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr
#define bfd_elf64_archive_openr_next_archived_file \
_bfd_archive_coff_openr_next_archived_file
#define bfd_elf64_archive_update_armap_timestamp \
_bfd_archive_coff_update_armap_timestamp
-#include "elf64-target.h"
+/* The SGI style (n)64 NewABI. */
+#define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec
+#define TARGET_LITTLE_NAME "elf64-littlemips"
+#define TARGET_BIG_SYM bfd_elf64_bigmips_vec
+#define TARGET_BIG_NAME "elf64-bigmips"
-/* Support for traditional mips targets */
+#include "elf64-target.h"
-#define INCLUDED_TARGET_FILE /* More a type of flag */
+#define INCLUDED_TARGET_FILE /* More a type of flag. */
+/* The SYSV-style 'traditional' (n)64 NewABI. */
#undef TARGET_LITTLE_SYM
#undef TARGET_LITTLE_NAME
#undef TARGET_BIG_SYM
#define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec
#define TARGET_BIG_NAME "elf64-tradbigmips"
-/* Include the target file again for this target */
+/* Include the target file again for this target. */
#include "elf64-target.h"
projects / deliverable / binutils-gdb.git / blobdiff