-/* Hitachi SH specific support for 32-bit ELF
- Copyright 1996, 1997, 1998, 1999, 2000, 2001
+/* Renesas / SuperH SH specific support for 32-bit ELF
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+ 2006, 2007, 2008, 2009, 2010, 2011, 2012
Free Software Foundation, Inc.
Contributed by Ian Lance Taylor, Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
+#include "elf-vxworks.h"
#include "elf/sh.h"
+#include "dwarf2.h"
+#include "libiberty.h"
+#include "../opcodes/sh-opc.h"
static bfd_reloc_status_type sh_elf_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_reloc_status_type sh_elf_ignore_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static reloc_howto_type *sh_elf_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void sh_elf_info_to_howto
- PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
-static boolean sh_elf_set_private_flags
- PARAMS ((bfd *, flagword));
-static boolean sh_elf_copy_private_data
- PARAMS ((bfd *, bfd *));
-static boolean sh_elf_merge_private_data
- PARAMS ((bfd *, bfd *));
-static boolean sh_elf_set_mach_from_flags
- PARAMS ((bfd *));
-static boolean sh_elf_relax_section
- PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
-static boolean sh_elf_relax_delete_bytes
- PARAMS ((bfd *, asection *, bfd_vma, int));
-static boolean sh_elf_align_loads
- PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, boolean *));
-static boolean sh_elf_swap_insns
- PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma));
-static boolean sh_elf_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-static bfd_byte *sh_elf_get_relocated_section_contents
- PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
- bfd_byte *, boolean, asymbol **));
-static boolean sh_elf_check_relocs
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static struct bfd_hash_entry *sh_elf_link_hash_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static struct bfd_link_hash_table *sh_elf_link_hash_table_create
- PARAMS ((bfd *));
-static boolean sh_elf_adjust_dynamic_symbol
- PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
-static boolean sh_elf_size_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean sh_elf_finish_dynamic_symbol
- PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
- Elf_Internal_Sym *));
-static boolean sh_elf_finish_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_reloc_status_type sh_elf_reloc_loop
- PARAMS ((int, bfd *, asection *, bfd_byte *, bfd_vma, asection *,
- bfd_vma, bfd_vma));
-static boolean sh_elf_create_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static asection * sh_elf_gc_mark_hook
- PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
- struct elf_link_hash_entry *, Elf_Internal_Sym *));
-static boolean sh_elf_gc_sweep_hook
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static enum elf_reloc_type_class sh_elf_reloc_type_class
- PARAMS ((int));
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_boolean sh_elf_relax_delete_bytes
+ (bfd *, asection *, bfd_vma, int);
+static bfd_boolean sh_elf_align_loads
+ (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
+#ifndef SH64_ELF
+static bfd_boolean sh_elf_swap_insns
+ (bfd *, asection *, void *, bfd_byte *, bfd_vma);
+#endif
+static int sh_elf_optimized_tls_reloc
+ (struct bfd_link_info *, int, int);
+static bfd_vma dtpoff_base
+ (struct bfd_link_info *);
+static bfd_vma tpoff
+ (struct bfd_link_info *, bfd_vma);
/* The name of the dynamic interpreter. This is put in the .interp
section. */
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
+/* FDPIC binaries have a default 128K stack. */
+#define DEFAULT_STACK_SIZE 0x20000
+
+#define MINUS_ONE ((bfd_vma) 0 - 1)
+
+/* Decide whether a reference to a symbol can be resolved locally or
+ not. If the symbol is protected, we want the local address, but
+ its function descriptor must be assigned by the dynamic linker. */
+#define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
+ (SYMBOL_REFERENCES_LOCAL (INFO, H) \
+ || ! elf_hash_table (INFO)->dynamic_sections_created)
+\f
+#define SH_PARTIAL32 TRUE
+#define SH_SRC_MASK32 0xffffffff
+#define SH_ELF_RELOC sh_elf_reloc
static reloc_howto_type sh_elf_howto_table[] =
{
- /* No relocation. */
- HOWTO (R_SH_NONE, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_NONE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 32 bit absolute relocation. Setting partial_inplace to true and
- src_mask to a non-zero value is similar to the COFF toolchain. */
- HOWTO (R_SH_DIR32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- sh_elf_reloc, /* special_function */
- "R_SH_DIR32", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 32 bit PC relative relocation. */
- HOWTO (R_SH_REL32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_REL32", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 8 bit PC relative branch divided by 2. */
- HOWTO (R_SH_DIR8WPN, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_DIR8WPN", /* name */
- true, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 12 bit PC relative branch divided by 2. */
- HOWTO (R_SH_IND12W, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 12, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- sh_elf_reloc, /* special_function */
- "R_SH_IND12W", /* name */
- true, /* partial_inplace */
- 0xfff, /* src_mask */
- 0xfff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 8 bit unsigned PC relative divided by 4. */
- HOWTO (R_SH_DIR8WPL, /* type */
- 2, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_DIR8WPL", /* name */
- true, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 8 bit unsigned PC relative divided by 2. */
- HOWTO (R_SH_DIR8WPZ, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_DIR8WPZ", /* name */
- true, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 8 bit GBR relative. FIXME: This only makes sense if we have some
- special symbol for the GBR relative area, and that is not
- implemented. */
- HOWTO (R_SH_DIR8BP, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_DIR8BP", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 8 bit GBR relative divided by 2. FIXME: This only makes sense if
- we have some special symbol for the GBR relative area, and that
- is not implemented. */
- HOWTO (R_SH_DIR8W, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_DIR8W", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 8 bit GBR relative divided by 4. FIXME: This only makes sense if
- we have some special symbol for the GBR relative area, and that
- is not implemented. */
- HOWTO (R_SH_DIR8L, /* type */
- 2, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_DIR8L", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- EMPTY_HOWTO (10),
- EMPTY_HOWTO (11),
- EMPTY_HOWTO (12),
- EMPTY_HOWTO (13),
- EMPTY_HOWTO (14),
- EMPTY_HOWTO (15),
- EMPTY_HOWTO (16),
- EMPTY_HOWTO (17),
- EMPTY_HOWTO (18),
- EMPTY_HOWTO (19),
- EMPTY_HOWTO (20),
- EMPTY_HOWTO (21),
- EMPTY_HOWTO (22),
- EMPTY_HOWTO (23),
- EMPTY_HOWTO (24),
-
- /* The remaining relocs are a GNU extension used for relaxing. The
- final pass of the linker never needs to do anything with any of
- these relocs. Any required operations are handled by the
- relaxation code. */
-
- /* A 16 bit switch table entry. This is generated for an expression
- such as ``.word L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_SH_SWITCH16, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_SWITCH16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* A 32 bit switch table entry. This is generated for an expression
- such as ``.long L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_SH_SWITCH32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_SWITCH32", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* Indicates a .uses pseudo-op. The compiler will generate .uses
- pseudo-ops when it finds a function call which can be relaxed.
- The offset field holds the PC relative offset to the instruction
- which loads the register used in the function call. */
- HOWTO (R_SH_USES, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_USES", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* The assembler will generate this reloc for addresses referred to
- by the register loads associated with USES relocs. The offset
- field holds the number of times the address is referenced in the
- object file. */
- HOWTO (R_SH_COUNT, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_COUNT", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* Indicates an alignment statement. The offset field is the power
- of 2 to which subsequent portions of the object file must be
- aligned. */
- HOWTO (R_SH_ALIGN, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_ALIGN", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* The assembler will generate this reloc before a block of
- instructions. A section should be processed as assumining it
- contains data, unless this reloc is seen. */
- HOWTO (R_SH_CODE, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_CODE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* The assembler will generate this reloc after a block of
- instructions when it sees data that is not instructions. */
- HOWTO (R_SH_DATA, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_DATA", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* The assembler generates this reloc for each label within a block
- of instructions. This permits the linker to avoid swapping
- instructions which are the targets of branches. */
- HOWTO (R_SH_LABEL, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_LABEL", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* An 8 bit switch table entry. This is generated for an expression
- such as ``.word L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_SH_SWITCH8, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_SWITCH8", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
-
- /* GNU extension to record C++ vtable hierarchy */
- HOWTO (R_SH_GNU_VTINHERIT, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- NULL, /* special_function */
- "R_SH_GNU_VTINHERIT", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
-
- /* GNU extension to record C++ vtable member usage */
- HOWTO (R_SH_GNU_VTENTRY, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- _bfd_elf_rel_vtable_reloc_fn, /* special_function */
- "R_SH_GNU_VTENTRY", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
- HOWTO (R_SH_LOOP_START, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_LOOP_START", /* name */
- true, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* 8 bit PC relative divided by 2 - but specified in a very odd way. */
- HOWTO (R_SH_LOOP_END, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- sh_elf_ignore_reloc, /* special_function */
- "R_SH_LOOP_END", /* name */
- true, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- true), /* pcrel_offset */
-
- EMPTY_HOWTO (38),
- EMPTY_HOWTO (39),
- EMPTY_HOWTO (40),
- EMPTY_HOWTO (41),
- EMPTY_HOWTO (42),
- EMPTY_HOWTO (43),
- EMPTY_HOWTO (44),
- EMPTY_HOWTO (45),
- EMPTY_HOWTO (46),
- EMPTY_HOWTO (47),
- EMPTY_HOWTO (48),
- EMPTY_HOWTO (49),
- EMPTY_HOWTO (50),
- EMPTY_HOWTO (51),
- EMPTY_HOWTO (52),
- EMPTY_HOWTO (53),
- EMPTY_HOWTO (54),
- EMPTY_HOWTO (55),
- EMPTY_HOWTO (56),
- EMPTY_HOWTO (57),
- EMPTY_HOWTO (58),
- EMPTY_HOWTO (59),
- EMPTY_HOWTO (60),
- EMPTY_HOWTO (61),
- EMPTY_HOWTO (62),
- EMPTY_HOWTO (63),
- EMPTY_HOWTO (64),
- EMPTY_HOWTO (65),
- EMPTY_HOWTO (66),
- EMPTY_HOWTO (67),
- EMPTY_HOWTO (68),
- EMPTY_HOWTO (69),
- EMPTY_HOWTO (70),
- EMPTY_HOWTO (71),
- EMPTY_HOWTO (72),
- EMPTY_HOWTO (73),
- EMPTY_HOWTO (74),
- EMPTY_HOWTO (75),
- EMPTY_HOWTO (76),
- EMPTY_HOWTO (77),
- EMPTY_HOWTO (78),
- EMPTY_HOWTO (79),
- EMPTY_HOWTO (80),
- EMPTY_HOWTO (81),
- EMPTY_HOWTO (82),
- EMPTY_HOWTO (83),
- EMPTY_HOWTO (84),
- EMPTY_HOWTO (85),
- EMPTY_HOWTO (86),
- EMPTY_HOWTO (87),
- EMPTY_HOWTO (88),
- EMPTY_HOWTO (89),
- EMPTY_HOWTO (90),
- EMPTY_HOWTO (91),
- EMPTY_HOWTO (92),
- EMPTY_HOWTO (93),
- EMPTY_HOWTO (94),
- EMPTY_HOWTO (95),
- EMPTY_HOWTO (96),
- EMPTY_HOWTO (97),
- EMPTY_HOWTO (98),
- EMPTY_HOWTO (99),
- EMPTY_HOWTO (100),
- EMPTY_HOWTO (101),
- EMPTY_HOWTO (102),
- EMPTY_HOWTO (103),
- EMPTY_HOWTO (104),
- EMPTY_HOWTO (105),
- EMPTY_HOWTO (106),
- EMPTY_HOWTO (107),
- EMPTY_HOWTO (108),
- EMPTY_HOWTO (109),
- EMPTY_HOWTO (110),
- EMPTY_HOWTO (111),
- EMPTY_HOWTO (112),
- EMPTY_HOWTO (113),
- EMPTY_HOWTO (114),
- EMPTY_HOWTO (115),
- EMPTY_HOWTO (116),
- EMPTY_HOWTO (117),
- EMPTY_HOWTO (118),
- EMPTY_HOWTO (119),
- EMPTY_HOWTO (120),
- EMPTY_HOWTO (121),
- EMPTY_HOWTO (122),
- EMPTY_HOWTO (123),
- EMPTY_HOWTO (124),
- EMPTY_HOWTO (125),
- EMPTY_HOWTO (126),
- EMPTY_HOWTO (127),
- EMPTY_HOWTO (128),
- EMPTY_HOWTO (129),
- EMPTY_HOWTO (130),
- EMPTY_HOWTO (131),
- EMPTY_HOWTO (132),
- EMPTY_HOWTO (133),
- EMPTY_HOWTO (134),
- EMPTY_HOWTO (135),
- EMPTY_HOWTO (136),
- EMPTY_HOWTO (137),
- EMPTY_HOWTO (138),
- EMPTY_HOWTO (139),
- EMPTY_HOWTO (140),
- EMPTY_HOWTO (141),
- EMPTY_HOWTO (142),
- EMPTY_HOWTO (143),
- EMPTY_HOWTO (144),
- EMPTY_HOWTO (145),
- EMPTY_HOWTO (146),
- EMPTY_HOWTO (147),
- EMPTY_HOWTO (148),
- EMPTY_HOWTO (149),
- EMPTY_HOWTO (150),
- EMPTY_HOWTO (151),
- EMPTY_HOWTO (152),
- EMPTY_HOWTO (153),
- EMPTY_HOWTO (154),
- EMPTY_HOWTO (155),
- EMPTY_HOWTO (156),
- EMPTY_HOWTO (157),
- EMPTY_HOWTO (158),
- EMPTY_HOWTO (159),
-
- HOWTO (R_SH_GOT32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_GOT32", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_SH_PLT32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_PLT32", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
-
- HOWTO (R_SH_COPY, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_COPY", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_SH_GLOB_DAT, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_GLOB_DAT", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_SH_JMP_SLOT, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_JMP_SLOT", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_SH_RELATIVE, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_RELATIVE", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_SH_GOTOFF, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_GOTOFF", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_SH_GOTPC, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* */
- "R_SH_GOTPC", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+#include "elf32-sh-relocs.h"
+};
+#define SH_PARTIAL32 FALSE
+#define SH_SRC_MASK32 0
+#define SH_ELF_RELOC bfd_elf_generic_reloc
+static reloc_howto_type sh_vxworks_howto_table[] =
+{
+#include "elf32-sh-relocs.h"
};
+\f
+/* Return true if OUTPUT_BFD is a VxWorks object. */
+
+static bfd_boolean
+vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED)
+{
+#if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
+ extern const bfd_target bfd_elf32_shlvxworks_vec;
+ extern const bfd_target bfd_elf32_shvxworks_vec;
+
+ return (abfd->xvec == &bfd_elf32_shlvxworks_vec
+ || abfd->xvec == &bfd_elf32_shvxworks_vec);
+#else
+ return FALSE;
+#endif
+}
+
+/* Return true if OUTPUT_BFD is an FDPIC object. */
+
+static bfd_boolean
+fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED)
+{
+#if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
+ extern const bfd_target bfd_elf32_shfd_vec;
+ extern const bfd_target bfd_elf32_shbfd_vec;
+
+ return (abfd->xvec == &bfd_elf32_shfd_vec
+ || abfd->xvec == &bfd_elf32_shbfd_vec);
+#else
+ return FALSE;
+#endif
+}
+
+/* Return the howto table for ABFD. */
+
+static reloc_howto_type *
+get_howto_table (bfd *abfd)
+{
+ if (vxworks_object_p (abfd))
+ return sh_vxworks_howto_table;
+ return sh_elf_howto_table;
+}
static bfd_reloc_status_type
-sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, addr,
- symbol_section, start, end)
- int r_type ATTRIBUTE_UNUSED;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- bfd_vma addr;
- asection *symbol_section;
- bfd_vma start, end;
+sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd,
+ asection *input_section, bfd_byte *contents,
+ bfd_vma addr, asection *symbol_section,
+ bfd_vma start, bfd_vma end)
{
static bfd_vma last_addr;
static asection *last_symbol_section;
- bfd_byte *free_contents = NULL;
bfd_byte *start_ptr, *ptr, *last_ptr;
int diff, cum_diff;
bfd_signed_vma x;
int insn;
/* Sanity check the address. */
- if (addr > input_section->_raw_size)
+ if (addr > bfd_get_section_limit (input_bfd, input_section))
return bfd_reloc_outofrange;
/* We require the start and end relocations to be processed consecutively -
contents = elf_section_data (symbol_section)->this_hdr.contents;
else
{
- contents = (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
- if (contents == NULL)
- return bfd_reloc_outofrange;
- free_contents = contents;
- if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
- (file_ptr) 0,
- symbol_section->_raw_size))
+ if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
+ &contents))
{
- free (contents);
+ if (contents != NULL)
+ free (contents);
return bfd_reloc_outofrange;
}
}
end = start0;
}
- if (free_contents)
- free (free_contents);
+ if (contents != NULL
+ && elf_section_data (symbol_section)->this_hdr.contents != contents)
+ free (contents);
insn = bfd_get_16 (input_bfd, contents + addr);
function, and is almost certainly incorrect for other ELF targets. */
static bfd_reloc_status_type
-sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
- error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol_in;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
+sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
+ void *data, asection *input_section, bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
{
unsigned long insn;
bfd_vma sym_value;
which the linker should otherwise ignore. */
static bfd_reloc_status_type
-sh_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *reloc_entry;
- asymbol *symbol ATTRIBUTE_UNUSED;
- PTR data ATTRIBUTE_UNUSED;
- asection *input_section;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
+sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
+ asymbol *symbol ATTRIBUTE_UNUSED,
+ void *data ATTRIBUTE_UNUSED, asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
{
if (output_bfd != NULL)
reloc_entry->address += input_section->output_offset;
{
{ BFD_RELOC_NONE, R_SH_NONE },
{ BFD_RELOC_32, R_SH_DIR32 },
+ { BFD_RELOC_16, R_SH_DIR16 },
+ { BFD_RELOC_8, R_SH_DIR8 },
{ BFD_RELOC_CTOR, R_SH_DIR32 },
{ BFD_RELOC_32_PCREL, R_SH_REL32 },
{ BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
{ BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
{ BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
{ BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
+ { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 },
+ { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 },
+ { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 },
+ { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 },
+ { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 },
+ { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 },
+ { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 },
+ { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 },
{ BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
{ BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
{ BFD_RELOC_SH_COPY, R_SH_COPY },
{ BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
{ BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
{ BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
+ { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
+ { BFD_RELOC_SH_GOT20, R_SH_GOT20 },
+ { BFD_RELOC_SH_GOTOFF20, R_SH_GOTOFF20 },
+ { BFD_RELOC_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC },
+ { BFD_RELOC_SH_GOTFUNCDESC20, R_SH_GOTFUNCDESC20 },
+ { BFD_RELOC_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC },
+ { BFD_RELOC_SH_GOTOFFFUNCDESC20, R_SH_GOTOFFFUNCDESC20 },
+ { BFD_RELOC_SH_FUNCDESC, R_SH_FUNCDESC },
+#ifdef INCLUDE_SHMEDIA
+ { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
+ { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
+ { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
+ { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
+ { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
+ { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
+ { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
+ { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
+ { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
+ { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
+ { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
+ { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
+ { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
+ { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
+ { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
+ { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
+ { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
+ { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
+ { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
+ { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
+ { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
+ { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
+ { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
+ { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
+ { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
+ { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
+ { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
+ { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
+ { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
+ { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
+ { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
+ { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
+ { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
+ { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
+ { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
+ { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
+ { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
+ { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
+ { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
+ { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
+ { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
+ { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
+ { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
+ { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
+ { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
+ { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
+ { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
+ { BFD_RELOC_64, R_SH_64 },
+ { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
+#endif /* not INCLUDE_SHMEDIA */
};
/* Given a BFD reloc code, return the howto structure for the
- corresponding SH ELf reloc. */
+ corresponding SH ELF reloc. */
static reloc_howto_type *
-sh_elf_reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
{
if (sh_reloc_map[i].bfd_reloc_val == code)
- return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
+ return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val;
+ }
+
+ return NULL;
+}
+
+static reloc_howto_type *
+sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name)
+{
+ unsigned int i;
+
+ if (vxworks_object_p (abfd))
+ {
+ for (i = 0;
+ i < (sizeof (sh_vxworks_howto_table)
+ / sizeof (sh_vxworks_howto_table[0]));
+ i++)
+ if (sh_vxworks_howto_table[i].name != NULL
+ && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0)
+ return &sh_vxworks_howto_table[i];
+ }
+ else
+ {
+ for (i = 0;
+ i < (sizeof (sh_elf_howto_table)
+ / sizeof (sh_elf_howto_table[0]));
+ i++)
+ if (sh_elf_howto_table[i].name != NULL
+ && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0)
+ return &sh_elf_howto_table[i];
}
return NULL;
/* Given an ELF reloc, fill in the howto field of a relent. */
static void
-sh_elf_info_to_howto (abfd, cache_ptr, dst)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *cache_ptr;
- Elf_Internal_Rela *dst;
+sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
{
unsigned int r;
BFD_ASSERT (r < (unsigned int) R_SH_max);
BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_2 || r > R_SH_LAST_INVALID_RELOC_2);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_LAST_INVALID_RELOC_3);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_5 || r > R_SH_LAST_INVALID_RELOC_5);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_6 || r > R_SH_LAST_INVALID_RELOC_6);
- cache_ptr->howto = &sh_elf_howto_table[r];
+ cache_ptr->howto = get_howto_table (abfd) + r;
}
\f
/* This function handles relaxing for SH ELF. See the corresponding
values; in coff-sh.c they come from include/coff/sh.h, whereas here
they come from enum elf_sh_reloc_type in include/elf/sh.h. */
-static boolean
-sh_elf_relax_section (abfd, sec, link_info, again)
- bfd *abfd;
- asection *sec;
- struct bfd_link_info *link_info;
- boolean *again;
+static bfd_boolean
+sh_elf_relax_section (bfd *abfd, asection *sec,
+ struct bfd_link_info *link_info, bfd_boolean *again)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *free_relocs = NULL;
- boolean have_code;
+ bfd_boolean have_code;
Elf_Internal_Rela *irel, *irelend;
bfd_byte *contents = NULL;
- bfd_byte *free_contents = NULL;
- Elf32_External_Sym *extsyms = NULL;
- Elf32_External_Sym *free_extsyms = NULL;
+ Elf_Internal_Sym *isymbuf = NULL;
- *again = false;
+ *again = FALSE;
- if (link_info->relocateable
+ if (link_info->relocatable
|| (sec->flags & SEC_RELOC) == 0
|| sec->reloc_count == 0)
- return true;
+ return TRUE;
- /* If this is the first time we have been called for this section,
- initialize the cooked size. */
- if (sec->_cooked_size == 0)
- sec->_cooked_size = sec->_raw_size;
+#ifdef INCLUDE_SHMEDIA
+ if (elf_section_data (sec)->this_hdr.sh_flags
+ & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED))
+ {
+ return TRUE;
+ }
+#endif
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ symtab_hdr = &elf_symtab_hdr (abfd);
- internal_relocs = (_bfd_elf32_link_read_relocs
- (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
+ internal_relocs = (_bfd_elf_link_read_relocs
+ (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
link_info->keep_memory));
if (internal_relocs == NULL)
goto error_return;
- if (! link_info->keep_memory)
- free_relocs = internal_relocs;
- have_code = false;
+ have_code = FALSE;
irelend = internal_relocs + sec->reloc_count;
for (irel = internal_relocs; irel < irelend; irel++)
bfd_signed_vma foff;
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
- have_code = true;
+ have_code = TRUE;
if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
continue;
contents = elf_section_data (sec)->this_hdr.contents;
else
{
- contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
- if (contents == NULL)
- goto error_return;
- free_contents = contents;
-
- if (! bfd_get_section_contents (abfd, sec, contents,
- (file_ptr) 0, sec->_raw_size))
+ if (!bfd_malloc_and_get_section (abfd, sec, &contents))
goto error_return;
}
}
/* The r_addend field of the R_SH_USES reloc will point us to
- the register load. The 4 is because the r_addend field is
- computed as though it were a jump offset, which are based
- from 4 bytes after the jump instruction. */
+ the register load. The 4 is because the r_addend field is
+ computed as though it were a jump offset, which are based
+ from 4 bytes after the jump instruction. */
laddr = irel->r_offset + 4 + irel->r_addend;
- if (laddr >= sec->_raw_size)
+ if (laddr >= sec->size)
{
- (*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
- bfd_archive_filename (abfd),
+ (*_bfd_error_handler) (_("%B: 0x%lx: warning: bad R_SH_USES offset"),
+ abfd,
(unsigned long) irel->r_offset);
continue;
}
insn = bfd_get_16 (abfd, contents + laddr);
/* If the instruction is not mov.l NN,rN, we don't know what to
- do. */
+ do. */
if ((insn & 0xf000) != 0xd000)
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
- bfd_archive_filename (abfd), (unsigned long) irel->r_offset, insn));
+ (_("%B: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
+ abfd, (unsigned long) irel->r_offset, insn));
continue;
}
paddr = insn & 0xff;
paddr *= 4;
paddr += (laddr + 4) &~ (bfd_vma) 3;
- if (paddr >= sec->_raw_size)
+ if (paddr >= sec->size)
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
- bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
+ (_("%B: 0x%lx: warning: bad R_SH_USES load offset"),
+ abfd, (unsigned long) irel->r_offset));
continue;
}
/* Get the reloc for the address from which the register is
- being loaded. This reloc will tell us which function is
- actually being called. */
+ being loaded. This reloc will tell us which function is
+ actually being called. */
for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
if (irelfn->r_offset == paddr
&& ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
if (irelfn >= irelend)
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: could not find expected reloc"),
- bfd_archive_filename (abfd), (unsigned long) paddr));
+ (_("%B: 0x%lx: warning: could not find expected reloc"),
+ abfd, (unsigned long) paddr));
continue;
}
/* Read this BFD's symbols if we haven't done so already. */
- if (extsyms == NULL)
+ if (isymbuf == NULL && symtab_hdr->sh_info != 0)
{
- if (symtab_hdr->contents != NULL)
- extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
- else
- {
- extsyms = (Elf32_External_Sym *) bfd_malloc (symtab_hdr->sh_size);
- if (extsyms == NULL)
- goto error_return;
- free_extsyms = extsyms;
- if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_bread (extsyms, symtab_hdr->sh_size, abfd)
- != symtab_hdr->sh_size))
- goto error_return;
- }
+ isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
+ if (isymbuf == NULL)
+ isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
+ symtab_hdr->sh_info, 0,
+ NULL, NULL, NULL);
+ if (isymbuf == NULL)
+ goto error_return;
}
/* Get the value of the symbol referred to by the reloc. */
if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
{
- Elf_Internal_Sym isym;
-
/* A local symbol. */
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irelfn->r_info),
- &isym);
+ Elf_Internal_Sym *isym;
- if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec))
+ isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
+ if (isym->st_shndx
+ != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: symbol in unexpected section"),
- bfd_archive_filename (abfd), (unsigned long) paddr));
+ (_("%B: 0x%lx: warning: symbol in unexpected section"),
+ abfd, (unsigned long) paddr));
continue;
}
- symval = (isym.st_value
+ symval = (isym->st_value
+ sec->output_section->vma
+ sec->output_offset);
}
&& h->root.type != bfd_link_hash_defweak)
{
/* This appears to be a reference to an undefined
- symbol. Just ignore it--it will be caught by the
- regular reloc processing. */
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
continue;
}
+ h->root.u.def.section->output_offset);
}
- symval += bfd_get_32 (abfd, contents + paddr);
+ if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
+ symval += bfd_get_32 (abfd, contents + paddr);
+ else
+ symval += irelfn->r_addend;
/* See if this function call can be shortened. */
foff = (symval
+ sec->output_section->vma
+ sec->output_offset
+ 4));
- if (foff < -0x1000 || foff >= 0x1000)
+ /* A branch to an address beyond ours might be increased by an
+ .align that doesn't move when bytes behind us are deleted.
+ So, we add some slop in this calculation to allow for
+ that. */
+ if (foff < -0x1000 || foff >= 0x1000 - 8)
{
/* After all that work, we can't shorten this function call. */
continue;
the linker is run. */
elf_section_data (sec)->relocs = internal_relocs;
- free_relocs = NULL;
-
elf_section_data (sec)->this_hdr.contents = contents;
- free_contents = NULL;
-
- symtab_hdr->contents = (bfd_byte *) extsyms;
- free_extsyms = NULL;
+ symtab_hdr->contents = (unsigned char *) isymbuf;
/* Replace the jsr with a bsr. */
/* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
- replace the jsr with a bsr. */
+ replace the jsr with a bsr. */
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
- if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
- {
- /* If this needs to be changed because of future relaxing,
- it will be handled here like other internal IND12W
- relocs. */
- bfd_put_16 (abfd,
- (bfd_vma) 0xb000 | ((foff >> 1) & 0xfff),
- contents + irel->r_offset);
- }
- else
- {
- /* We can't fully resolve this yet, because the external
- symbol value may be changed by future relaxing. We let
- the final link phase handle it. */
- bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
- }
+ /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
+ here, but that only checks if the symbol is an external symbol,
+ not if the symbol is in a different section. Besides, we need
+ a consistent meaning for the relocation, so we just assume here that
+ the value of the symbol is not available. */
+
+ /* We can't fully resolve this yet, because the external
+ symbol value may be changed by future relaxing. We let
+ the final link phase handle it. */
+ bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
+
+ irel->r_addend = -4;
+
+ /* When we calculated the symbol "value" we had an offset in the
+ DIR32's word in memory (we read and add it above). However,
+ the jsr we create does NOT have this offset encoded, so we
+ have to add it to the addend to preserve it. */
+ irel->r_addend += bfd_get_32 (abfd, contents + paddr);
/* See if there is another R_SH_USES reloc referring to the same
- register load. */
+ register load. */
for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
&& laddr == irelscan->r_offset + 4 + irelscan->r_addend)
}
/* Look for a R_SH_COUNT reloc on the location where the
- function address is stored. Do this before deleting any
- bytes, to avoid confusion about the address. */
+ function address is stored. Do this before deleting any
+ bytes, to avoid confusion about the address. */
for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
if (irelcount->r_offset == paddr
&& ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
goto error_return;
/* That will change things, so, just in case it permits some
- other function call to come within range, we should relax
- again. Note that this is not required, and it may be slow. */
- *again = true;
+ other function call to come within range, we should relax
+ again. Note that this is not required, and it may be slow. */
+ *again = TRUE;
/* Now check whether we got a COUNT reloc. */
if (irelcount >= irelend)
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
- bfd_archive_filename (abfd), (unsigned long) paddr));
+ (_("%B: 0x%lx: warning: could not find expected COUNT reloc"),
+ abfd, (unsigned long) paddr));
continue;
}
/* The number of uses is stored in the r_addend field. We've
- just deleted one. */
+ just deleted one. */
if (irelcount->r_addend == 0)
{
- ((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
- bfd_archive_filename (abfd),
+ ((*_bfd_error_handler) (_("%B: 0x%lx: warning: bad count"),
+ abfd,
(unsigned long) paddr));
continue;
}
--irelcount->r_addend;
/* If there are no more uses, we can delete the address. Reload
- the address from irelfn, in case it was changed by the
- previous call to sh_elf_relax_delete_bytes. */
+ the address from irelfn, in case it was changed by the
+ previous call to sh_elf_relax_delete_bytes. */
if (irelcount->r_addend == 0)
{
if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
/* Look for load and store instructions that we can align on four
byte boundaries. */
- if (have_code)
+ if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4
+ && have_code)
{
- boolean swapped;
+ bfd_boolean swapped;
/* Get the section contents. */
if (contents == NULL)
contents = elf_section_data (sec)->this_hdr.contents;
else
{
- contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
- if (contents == NULL)
- goto error_return;
- free_contents = contents;
-
- if (! bfd_get_section_contents (abfd, sec, contents,
- (file_ptr) 0, sec->_raw_size))
+ if (!bfd_malloc_and_get_section (abfd, sec, &contents))
goto error_return;
}
}
if (swapped)
{
elf_section_data (sec)->relocs = internal_relocs;
- free_relocs = NULL;
-
elf_section_data (sec)->this_hdr.contents = contents;
- free_contents = NULL;
-
- symtab_hdr->contents = (bfd_byte *) extsyms;
- free_extsyms = NULL;
+ symtab_hdr->contents = (unsigned char *) isymbuf;
}
}
- if (free_relocs != NULL)
- {
- free (free_relocs);
- free_relocs = NULL;
- }
-
- if (free_contents != NULL)
+ if (isymbuf != NULL
+ && symtab_hdr->contents != (unsigned char *) isymbuf)
{
if (! link_info->keep_memory)
- free (free_contents);
+ free (isymbuf);
else
{
- /* Cache the section contents for elf_link_input_bfd. */
- elf_section_data (sec)->this_hdr.contents = contents;
+ /* Cache the symbols for elf_link_input_bfd. */
+ symtab_hdr->contents = (unsigned char *) isymbuf;
}
- free_contents = NULL;
}
- if (free_extsyms != NULL)
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != contents)
{
if (! link_info->keep_memory)
- free (free_extsyms);
+ free (contents);
else
{
- /* Cache the symbols for elf_link_input_bfd. */
- symtab_hdr->contents = extsyms;
+ /* Cache the section contents for elf_link_input_bfd. */
+ elf_section_data (sec)->this_hdr.contents = contents;
}
- free_extsyms = NULL;
}
- return true;
+ if (internal_relocs != NULL
+ && elf_section_data (sec)->relocs != internal_relocs)
+ free (internal_relocs);
+
+ return TRUE;
error_return:
- if (free_relocs != NULL)
- free (free_relocs);
- if (free_contents != NULL)
- free (free_contents);
- if (free_extsyms != NULL)
- free (free_extsyms);
- return false;
+ if (isymbuf != NULL
+ && symtab_hdr->contents != (unsigned char *) isymbuf)
+ free (isymbuf);
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != contents)
+ free (contents);
+ if (internal_relocs != NULL
+ && elf_section_data (sec)->relocs != internal_relocs)
+ free (internal_relocs);
+
+ return FALSE;
}
/* Delete some bytes from a section while relaxing. FIXME: There is a
lot of duplication between this function and sh_relax_delete_bytes
in coff-sh.c. */
-static boolean
-sh_elf_relax_delete_bytes (abfd, sec, addr, count)
- bfd *abfd;
- asection *sec;
- bfd_vma addr;
- int count;
+static bfd_boolean
+sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
+ int count)
{
Elf_Internal_Shdr *symtab_hdr;
- Elf32_External_Sym *extsyms;
- int shndx, index;
+ unsigned int sec_shndx;
bfd_byte *contents;
Elf_Internal_Rela *irel, *irelend;
Elf_Internal_Rela *irelalign;
bfd_vma toaddr;
- Elf32_External_Sym *esym, *esymend;
- struct elf_link_hash_entry *sym_hash;
+ Elf_Internal_Sym *isymbuf, *isym, *isymend;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_link_hash_entry **end_hashes;
+ unsigned int symcount;
asection *o;
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
+ symtab_hdr = &elf_symtab_hdr (abfd);
+ isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+ sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
contents = elf_section_data (sec)->this_hdr.contents;
power larger than the number of bytes we are deleting. */
irelalign = NULL;
- toaddr = sec->_cooked_size;
+ toaddr = sec->size;
irel = elf_section_data (sec)->relocs;
irelend = irel + sec->reloc_count;
memmove (contents + addr, contents + addr + count,
(size_t) (toaddr - addr - count));
if (irelalign == NULL)
- sec->_cooked_size -= count;
+ sec->size -= count;
else
{
int i;
bfd_vma nraddr, stop;
bfd_vma start = 0;
int insn = 0;
- Elf_Internal_Sym sym;
int off, adjust, oinsn;
bfd_signed_vma voff = 0;
- boolean overflow;
+ bfd_boolean overflow;
/* Get the new reloc address. */
nraddr = irel->r_offset;
(int) R_SH_NONE);
/* If this is a PC relative reloc, see if the range it covers
- includes the bytes we have deleted. */
+ includes the bytes we have deleted. */
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
{
default:
case R_SH_DIR32:
/* If this reloc is against a symbol defined in this
- section, and the symbol will not be adjusted below, we
- must check the addend to see it will put the value in
- range to be adjusted, and hence must be changed. */
+ section, and the symbol will not be adjusted below, we
+ must check the addend to see it will put the value in
+ range to be adjusted, and hence must be changed. */
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
{
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irel->r_info),
- &sym);
- if (sym.st_shndx == shndx
- && (sym.st_value <= addr
- || sym.st_value >= toaddr))
+ isym = isymbuf + ELF32_R_SYM (irel->r_info);
+ if (isym->st_shndx == sec_shndx
+ && (isym->st_value <= addr
+ || isym->st_value >= toaddr))
{
bfd_vma val;
- val = bfd_get_32 (abfd, contents + nraddr);
- val += sym.st_value;
- if (val > addr && val < toaddr)
- bfd_put_32 (abfd, val - count, contents + nraddr);
+ if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
+ {
+ val = bfd_get_32 (abfd, contents + nraddr);
+ val += isym->st_value;
+ if (val > addr && val < toaddr)
+ bfd_put_32 (abfd, val - count, contents + nraddr);
+ }
+ else
+ {
+ val = isym->st_value + irel->r_addend;
+ if (val > addr && val < toaddr)
+ irel->r_addend -= count;
+ }
}
}
start = stop = addr;
break;
case R_SH_IND12W:
- if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
- start = stop = addr;
+ off = insn & 0xfff;
+ if (! off)
+ {
+ /* This has been made by previous relaxation. Since the
+ relocation will be against an external symbol, the
+ final relocation will just do the right thing. */
+ start = stop = addr;
+ }
else
{
- off = insn & 0xfff;
if (off & 0x800)
off -= 0x1000;
stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
+
+ /* The addend will be against the section symbol, thus
+ for adjusting the addend, the relevant start is the
+ start of the section.
+ N.B. If we want to abandon in-place changes here and
+ test directly using symbol + addend, we have to take into
+ account that the addend has already been adjusted by -4. */
+ if (stop > addr && stop < toaddr)
+ irel->r_addend -= count;
}
break;
if (adjust != 0)
{
oinsn = insn;
- overflow = false;
+ overflow = FALSE;
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
{
default:
case R_SH_DIR8WPZ:
insn += adjust / 2;
if ((oinsn & 0xff00) != (insn & 0xff00))
- overflow = true;
+ overflow = TRUE;
bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
break;
case R_SH_IND12W:
insn += adjust / 2;
if ((oinsn & 0xf000) != (insn & 0xf000))
- overflow = true;
+ overflow = TRUE;
bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
break;
++insn;
}
if ((oinsn & 0xff00) != (insn & 0xff00))
- overflow = true;
+ overflow = TRUE;
bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
break;
case R_SH_SWITCH8:
voff += adjust;
if (voff < 0 || voff >= 0xff)
- overflow = true;
+ overflow = TRUE;
bfd_put_8 (abfd, voff, contents + nraddr);
break;
case R_SH_SWITCH16:
voff += adjust;
if (voff < - 0x8000 || voff >= 0x8000)
- overflow = true;
+ overflow = TRUE;
bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
break;
if (overflow)
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
- bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
+ (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
+ abfd, (unsigned long) irel->r_offset));
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
}
continue;
/* We always cache the relocs. Perhaps, if info->keep_memory is
- false, we should free them, if we are permitted to, when we
- leave sh_coff_relax_section. */
- internal_relocs = (_bfd_elf32_link_read_relocs
- (abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
- true));
+ FALSE, we should free them, if we are permitted to, when we
+ leave sh_coff_relax_section. */
+ internal_relocs = (_bfd_elf_link_read_relocs
+ (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
if (internal_relocs == NULL)
- return false;
+ return FALSE;
ocontents = NULL;
irelscanend = internal_relocs + o->reloc_count;
for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
{
- Elf_Internal_Sym sym;
-
/* Dwarf line numbers use R_SH_SWITCH32 relocs. */
if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
{
else
{
/* We always cache the section contents.
- Perhaps, if info->keep_memory is false, we
- should free them, if we are permitted to,
- when we leave sh_coff_relax_section. */
- ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
- if (ocontents == NULL)
- return false;
- if (! bfd_get_section_contents (abfd, o, ocontents,
- (file_ptr) 0,
- o->_raw_size))
- return false;
+ Perhaps, if info->keep_memory is FALSE, we
+ should free them, if we are permitted to,
+ when we leave sh_coff_relax_section. */
+ if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
+ {
+ if (ocontents != NULL)
+ free (ocontents);
+ return FALSE;
+ }
+
elf_section_data (o)->this_hdr.contents = ocontents;
}
}
if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
continue;
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irelscan->r_info),
- &sym);
- if (sym.st_shndx == shndx
- && (sym.st_value <= addr
- || sym.st_value >= toaddr))
+ isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
+ if (isym->st_shndx == sec_shndx
+ && (isym->st_value <= addr
+ || isym->st_value >= toaddr))
{
bfd_vma val;
else
{
/* We always cache the section contents.
- Perhaps, if info->keep_memory is false, we
- should free them, if we are permitted to,
- when we leave sh_coff_relax_section. */
- ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
- if (ocontents == NULL)
- return false;
- if (! bfd_get_section_contents (abfd, o, ocontents,
- (file_ptr) 0,
- o->_raw_size))
- return false;
+ Perhaps, if info->keep_memory is FALSE, we
+ should free them, if we are permitted to,
+ when we leave sh_coff_relax_section. */
+ if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
+ {
+ if (ocontents != NULL)
+ free (ocontents);
+ return FALSE;
+ }
+
elf_section_data (o)->this_hdr.contents = ocontents;
}
}
val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
- val += sym.st_value;
+ val += isym->st_value;
if (val > addr && val < toaddr)
bfd_put_32 (abfd, val - count,
ocontents + irelscan->r_offset);
}
/* Adjust the local symbols defined in this section. */
- esym = extsyms;
- esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; esym++)
+ isymend = isymbuf + symtab_hdr->sh_info;
+ for (isym = isymbuf; isym < isymend; isym++)
{
- Elf_Internal_Sym isym;
-
- bfd_elf32_swap_symbol_in (abfd, esym, &isym);
-
- if (isym.st_shndx == shndx
- && isym.st_value > addr
- && isym.st_value < toaddr)
- {
- isym.st_value -= count;
- bfd_elf32_swap_symbol_out (abfd, &isym, esym);
- }
+ if (isym->st_shndx == sec_shndx
+ && isym->st_value > addr
+ && isym->st_value < toaddr)
+ isym->st_value -= count;
}
/* Now adjust the global symbols defined in this section. */
- esym = extsyms + symtab_hdr->sh_info;
- esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
- for (index = 0; esym < esymend; esym++, index++)
+ symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info);
+ sym_hashes = elf_sym_hashes (abfd);
+ end_hashes = sym_hashes + symcount;
+ for (; sym_hashes < end_hashes; sym_hashes++)
{
- Elf_Internal_Sym isym;
-
- bfd_elf32_swap_symbol_in (abfd, esym, &isym);
- sym_hash = elf_sym_hashes (abfd)[index];
- if (isym.st_shndx == shndx
- && ((sym_hash)->root.type == bfd_link_hash_defined
- || (sym_hash)->root.type == bfd_link_hash_defweak)
- && (sym_hash)->root.u.def.section == sec
- && (sym_hash)->root.u.def.value > addr
- && (sym_hash)->root.u.def.value < toaddr)
+ struct elf_link_hash_entry *sym_hash = *sym_hashes;
+ if ((sym_hash->root.type == bfd_link_hash_defined
+ || sym_hash->root.type == bfd_link_hash_defweak)
+ && sym_hash->root.u.def.section == sec
+ && sym_hash->root.u.def.value > addr
+ && sym_hash->root.u.def.value < toaddr)
{
- (sym_hash)->root.u.def.value -= count;
+ sym_hash->root.u.def.value -= count;
}
}
}
}
- return true;
+ return TRUE;
}
/* Look for loads and stores which we can align to four byte
boundaries. This is like sh_align_loads in coff-sh.c. */
-static boolean
-sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped)
- bfd *abfd;
- asection *sec;
- Elf_Internal_Rela *internal_relocs;
- bfd_byte *contents;
- boolean *pswapped;
+static bfd_boolean
+sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
+ Elf_Internal_Rela *internal_relocs,
+ bfd_byte *contents ATTRIBUTE_UNUSED,
+ bfd_boolean *pswapped)
{
Elf_Internal_Rela *irel, *irelend;
bfd_vma *labels = NULL;
bfd_vma *label, *label_end;
bfd_size_type amt;
- *pswapped = false;
+ *pswapped = FALSE;
irelend = internal_relocs + sec->reloc_count;
if (irel < irelend)
stop = irel->r_offset;
else
- stop = sec->_cooked_size;
+ stop = sec->size;
if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
- (PTR) internal_relocs, &label,
+ internal_relocs, &label,
label_end, start, stop, pswapped))
goto error_return;
}
free (labels);
- return true;
+ return TRUE;
error_return:
if (labels != NULL)
free (labels);
- return false;
+ return FALSE;
}
+#ifndef SH64_ELF
/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
-static boolean
-sh_elf_swap_insns (abfd, sec, relocs, contents, addr)
- bfd *abfd;
- asection *sec;
- PTR relocs;
- bfd_byte *contents;
- bfd_vma addr;
+static bfd_boolean
+sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
+ bfd_byte *contents, bfd_vma addr)
{
Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
unsigned short i1, i2;
int add;
/* There are a few special types of relocs that we don't want to
- adjust. These relocs do not apply to the instruction itself,
- but are only associated with the address. */
+ adjust. These relocs do not apply to the instruction itself,
+ but are only associated with the address. */
type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
if (type == R_SH_ALIGN
|| type == R_SH_CODE
continue;
/* If an R_SH_USES reloc points to one of the addresses being
- swapped, we must adjust it. It would be incorrect to do this
- for a jump, though, since we want to execute both
- instructions after the jump. (We have avoided swapping
- around a label, so the jump will not wind up executing an
- instruction it shouldn't). */
+ swapped, we must adjust it. It would be incorrect to do this
+ for a jump, though, since we want to execute both
+ instructions after the jump. (We have avoided swapping
+ around a label, so the jump will not wind up executing an
+ instruction it shouldn't). */
if (type == R_SH_USES)
{
bfd_vma off;
{
bfd_byte *loc;
unsigned short insn, oinsn;
- boolean overflow;
+ bfd_boolean overflow;
loc = contents + irel->r_offset;
- overflow = false;
+ overflow = FALSE;
switch (type)
{
default:
oinsn = insn;
insn += add / 2;
if ((oinsn & 0xff00) != (insn & 0xff00))
- overflow = true;
+ overflow = TRUE;
bfd_put_16 (abfd, (bfd_vma) insn, loc);
break;
oinsn = insn;
insn += add / 2;
if ((oinsn & 0xf000) != (insn & 0xf000))
- overflow = true;
+ overflow = TRUE;
bfd_put_16 (abfd, (bfd_vma) insn, loc);
break;
case R_SH_DIR8WPL:
/* This reloc ignores the least significant 3 bits of
- the program counter before adding in the offset.
- This means that if ADDR is at an even address, the
- swap will not affect the offset. If ADDR is an at an
- odd address, then the instruction will be crossing a
- four byte boundary, and must be adjusted. */
+ the program counter before adding in the offset.
+ This means that if ADDR is at an even address, the
+ swap will not affect the offset. If ADDR is an at an
+ odd address, then the instruction will be crossing a
+ four byte boundary, and must be adjusted. */
if ((addr & 3) != 0)
{
insn = bfd_get_16 (abfd, loc);
oinsn = insn;
insn += add / 2;
if ((oinsn & 0xff00) != (insn & 0xff00))
- overflow = true;
+ overflow = TRUE;
bfd_put_16 (abfd, (bfd_vma) insn, loc);
}
if (overflow)
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
- bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
+ (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
+ abfd, (unsigned long) irel->r_offset));
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
}
}
- return true;
+ return TRUE;
}
+#endif /* defined SH64_ELF */
\f
+/* Describes one of the various PLT styles. */
+
+struct elf_sh_plt_info
+{
+ /* The template for the first PLT entry, or NULL if there is no special
+ first entry. */
+ const bfd_byte *plt0_entry;
+
+ /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
+ bfd_vma plt0_entry_size;
+
+ /* Index I is the offset into PLT0_ENTRY of a pointer to
+ _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
+ if there is no such pointer. */
+ bfd_vma plt0_got_fields[3];
+
+ /* The template for a symbol's PLT entry. */
+ const bfd_byte *symbol_entry;
+
+ /* The size of SYMBOL_ENTRY in bytes. */
+ bfd_vma symbol_entry_size;
+
+ /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
+ on all targets. The comments by each member indicate the value
+ that the field must hold. */
+ struct {
+ bfd_vma got_entry; /* the address of the symbol's .got.plt entry */
+ bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */
+ bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */
+ bfd_boolean got20; /* TRUE if got_entry points to a movi20
+ instruction (instead of a constant pool
+ entry). */
+ } symbol_fields;
+
+ /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
+ bfd_vma symbol_resolve_offset;
+
+ /* A different PLT layout which can be used for the first
+ MAX_SHORT_PLT entries. It must share the same plt0. NULL in
+ other cases. */
+ const struct elf_sh_plt_info *short_plt;
+};
+
+#ifdef INCLUDE_SHMEDIA
+
+/* The size in bytes of an entry in the procedure linkage table. */
+
+#define ELF_PLT_ENTRY_SIZE 64
+
+/* First entry in an absolute procedure linkage table look like this. */
+
+static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
+{
+ 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
+ 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
+ 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+};
+
+static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
+{
+ 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
+ 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
+ 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+};
+
+/* Sebsequent entries in an absolute procedure linkage table look like
+ this. */
+
+static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
+{
+ 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
+ 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
+ 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
+ 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
+ 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+};
+
+static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
+{
+ 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
+ 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
+ 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
+ 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
+ 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+};
+
+/* Entries in a PIC procedure linkage table look like this. */
+
+static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
+{
+ 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
+ 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
+ 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
+ 0x00, 0xc8, 0x45, 0x10, /* add.l r12, r17, r17 */
+ 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
+ 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
+ 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+};
+
+static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
+{
+ 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
+ 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
+ 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
+ 0x10, 0x45, 0xc8, 0x00, /* add.l r12, r17, r17 */
+ 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
+ 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
+ 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+};
+
+static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
+ {
+ {
+ /* Big-endian non-PIC. */
+ elf_sh_plt0_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { 0, MINUS_ONE, MINUS_ONE },
+ elf_sh_plt_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { 0, 32, 48, FALSE },
+ 33, /* includes ISA encoding */
+ NULL
+ },
+ {
+ /* Little-endian non-PIC. */
+ elf_sh_plt0_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { 0, MINUS_ONE, MINUS_ONE },
+ elf_sh_plt_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { 0, 32, 48, FALSE },
+ 33, /* includes ISA encoding */
+ NULL
+ },
+ },
+ {
+ {
+ /* Big-endian PIC. */
+ elf_sh_plt0_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ elf_sh_pic_plt_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { 0, MINUS_ONE, 52, FALSE },
+ 33, /* includes ISA encoding */
+ NULL
+ },
+ {
+ /* Little-endian PIC. */
+ elf_sh_plt0_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ elf_sh_pic_plt_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { 0, MINUS_ONE, 52, FALSE },
+ 33, /* includes ISA encoding */
+ NULL
+ },
+ }
+};
+
+/* Return offset of the linker in PLT0 entry. */
+#define elf_sh_plt0_gotplt_offset(info) 0
+
+/* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
+ VALUE is the field's value and CODE_P is true if VALUE refers to code,
+ not data.
+
+ On SH64, each 32-bit field is loaded by a movi/shori pair. */
+
+inline static void
+install_plt_field (bfd *output_bfd, bfd_boolean code_p,
+ unsigned long value, bfd_byte *addr)
+{
+ value |= code_p;
+ bfd_put_32 (output_bfd,
+ bfd_get_32 (output_bfd, addr)
+ | ((value >> 6) & 0x3fffc00),
+ addr);
+ bfd_put_32 (output_bfd,
+ bfd_get_32 (output_bfd, addr + 4)
+ | ((value << 10) & 0x3fffc00),
+ addr + 4);
+}
+
+/* Return the type of PLT associated with ABFD. PIC_P is true if
+ the object is position-independent. */
+
+static const struct elf_sh_plt_info *
+get_plt_info (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean pic_p)
+{
+ return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
+}
+#else
/* The size in bytes of an entry in the procedure linkage table. */
-#define PLT_ENTRY_SIZE 28
+#define ELF_PLT_ENTRY_SIZE 28
/* First entry in an absolute procedure linkage table look like this. */
-#if 1
/* Note - this code has been "optimised" not to use r2. r2 is used by
- GCC to return the address of large strutcures, so it should not be
+ GCC to return the address of large structures, so it should not be
corrupted here. This does mean however, that this PLT does not conform
to the SH PIC ABI. That spec says that r0 contains the type of the PLT
and r2 contains the GOT id. This version stores the GOT id in r0 and
ignores the type. Loaders can easily detect this difference however,
since the type will always be 0 or 8, and the GOT ids will always be
greater than or equal to 12. */
-static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
+static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
{
0xd0, 0x05, /* mov.l 2f,r0 */
0x60, 0x02, /* mov.l @r0,r0 */
0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
};
-static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
+static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
{
0x05, 0xd0, /* mov.l 2f,r0 */
0x02, 0x60, /* mov.l @r0,r0 */
/* Sebsequent entries in an absolute procedure linkage table look like
this. */
-static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
+static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
{
0xd0, 0x04, /* mov.l 1f,r0 */
- 0x60, 0x02, /* mov.l @r0,r0 */
+ 0x60, 0x02, /* mov.l @(r0,r12),r0 */
0xd1, 0x02, /* mov.l 0f,r1 */
0x40, 0x2b, /* jmp @r0 */
0x60, 0x13, /* mov r1,r0 */
0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
};
-static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
+static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
{
0x04, 0xd0, /* mov.l 1f,r0 */
0x02, 0x60, /* mov.l @r0,r0 */
/* Entries in a PIC procedure linkage table look like this. */
-static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
+static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
{
0xd0, 0x04, /* mov.l 1f,r0 */
0x00, 0xce, /* mov.l @(r0,r12),r0 */
0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
};
-static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
+static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
{
0x04, 0xd0, /* mov.l 1f,r0 */
0xce, 0x00, /* mov.l @(r0,r12),r0 */
0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
};
-#else /* These are the old style PLT entries. */
-static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
+static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
+ {
+ {
+ /* Big-endian non-PIC. */
+ elf_sh_plt0_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { MINUS_ONE, 24, 20 },
+ elf_sh_plt_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { 20, 16, 24, FALSE },
+ 8,
+ NULL
+ },
+ {
+ /* Little-endian non-PIC. */
+ elf_sh_plt0_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { MINUS_ONE, 24, 20 },
+ elf_sh_plt_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { 20, 16, 24, FALSE },
+ 8,
+ NULL
+ },
+ },
+ {
+ {
+ /* Big-endian PIC. */
+ elf_sh_plt0_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ elf_sh_pic_plt_entry_be,
+ ELF_PLT_ENTRY_SIZE,
+ { 20, MINUS_ONE, 24, FALSE },
+ 8,
+ NULL
+ },
+ {
+ /* Little-endian PIC. */
+ elf_sh_plt0_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ elf_sh_pic_plt_entry_le,
+ ELF_PLT_ENTRY_SIZE,
+ { 20, MINUS_ONE, 24, FALSE },
+ 8,
+ NULL
+ },
+ }
+};
+
+#define VXWORKS_PLT_HEADER_SIZE 12
+#define VXWORKS_PLT_ENTRY_SIZE 24
+
+static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] =
{
- 0xd0, 0x04, /* mov.l 1f,r0 */
- 0xd2, 0x05, /* mov.l 2f,r2 */
- 0x60, 0x02, /* mov.l @r0,r0 */
- 0x62, 0x22, /* mov.l @r2,r2 */
- 0x40, 0x2b, /* jmp @r0 */
- 0xe0, 0x00, /* mov #0,r0 */
- 0x00, 0x09, /* nop */
- 0x00, 0x09, /* nop */
+ 0xd1, 0x01, /* mov.l @(8,pc),r1 */
+ 0x61, 0x12, /* mov.l @r1,r1 */
+ 0x41, 0x2b, /* jmp @r1 */
0x00, 0x09, /* nop */
- 0x00, 0x09, /* nop */
- 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
- 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+ 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
};
-static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
+static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] =
{
- 0x04, 0xd0, /* mov.l 1f,r0 */
- 0x05, 0xd2, /* mov.l 2f,r2 */
- 0x02, 0x60, /* mov.l @r0,r0 */
- 0x22, 0x62, /* mov.l @r2,r2 */
- 0x2b, 0x40, /* jmp @r0 */
- 0x00, 0xe0, /* mov #0,r0 */
- 0x09, 0x00, /* nop */
- 0x09, 0x00, /* nop */
+ 0x01, 0xd1, /* mov.l @(8,pc),r1 */
+ 0x12, 0x61, /* mov.l @r1,r1 */
+ 0x2b, 0x41, /* jmp @r1 */
0x09, 0x00, /* nop */
- 0x09, 0x00, /* nop */
- 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
- 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+ 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
};
-/* Sebsequent entries in an absolute procedure linkage table look like
- this. */
-
-static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
+static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
{
- 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0xd0, 0x01, /* mov.l @(8,pc),r0 */
0x60, 0x02, /* mov.l @r0,r0 */
- 0xd2, 0x02, /* mov.l 0f,r2 */
- 0x40, 0x2b, /* jmp @r0 */
- 0x60, 0x23, /* mov r2,r0 */
- 0xd1, 0x03, /* mov.l 2f,r1 */
0x40, 0x2b, /* jmp @r0 */
0x00, 0x09, /* nop */
- 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
- 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
- 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+ 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
+ 0xd0, 0x01, /* mov.l @(8,pc),r0 */
+ 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
};
-static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
+static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
{
- 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0x01, 0xd0, /* mov.l @(8,pc),r0 */
0x02, 0x60, /* mov.l @r0,r0 */
- 0x02, 0xd2, /* mov.l 0f,r2 */
- 0x2b, 0x40, /* jmp @r0 */
- 0x23, 0x60, /* mov r2,r0 */
- 0x03, 0xd1, /* mov.l 2f,r1 */
0x2b, 0x40, /* jmp @r0 */
- 0x09, 0x00, /* nop */
- 0, 0, 0, 0, /* 0: replaced with address of .PLT. */
- 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
- 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
+ 0x01, 0xd0, /* mov.l @(8,pc),r0 */
+ 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
};
-/* Entries in a PIC procedure linkage table look like this. */
-
-static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
+static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
{
- 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0xd0, 0x01, /* mov.l @(8,pc),r0 */
0x00, 0xce, /* mov.l @(r0,r12),r0 */
0x40, 0x2b, /* jmp @r0 */
- 0x00, 0x09, /* nop */
- 0x50, 0xc2, /* 0: mov.l @(8,r12),r0 */
- 0x52, 0xc1, /* 1: mov.l @(4,r12),r2 */
- 0xd1, 0x02, /* mov.l 2f,r1 */
- 0x40, 0x2b, /* jmp @r0 */
- 0xe0, 0x00, /* mov #0,r0 ! shows the type of PLT. */
0x00, 0x09, /* nop */
- 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
- 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+ 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
+ 0xd0, 0x01, /* mov.l @(8,pc),r0 */
+ 0x51, 0xc2, /* mov.l @(8,r12),r1 */
+ 0x41, 0x2b, /* jmp @r1 */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
};
-static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
+static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
{
- 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0x01, 0xd0, /* mov.l @(8,pc),r0 */
0xce, 0x00, /* mov.l @(r0,r12),r0 */
0x2b, 0x40, /* jmp @r0 */
- 0x09, 0x00, /* nop */
- 0xc2, 0x50, /* 0: mov.l @(8,r12),r0 */
- 0xc1, 0x52, /* 1: mov.l @(4,r12),r2 */
- 0x02, 0xd1, /* mov.l 2f,r1 */
- 0x2b, 0x40, /* jmp @r0 */
- 0x00, 0xe0, /* mov #0,r0 ! shows the type of PLT. */
0x09, 0x00, /* nop */
- 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
- 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+ 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
+ 0x01, 0xd0, /* mov.l @(8,pc),r0 */
+ 0xc2, 0x51, /* mov.l @(8,r12),r1 */
+ 0x2b, 0x41, /* jmp @r1 */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
};
-#endif /* old style PLT entries. */
-static const bfd_byte *elf_sh_plt0_entry;
-static const bfd_byte *elf_sh_plt_entry;
-static const bfd_byte *elf_sh_pic_plt_entry;
+static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = {
+ {
+ {
+ /* Big-endian non-PIC. */
+ vxworks_sh_plt0_entry_be,
+ VXWORKS_PLT_HEADER_SIZE,
+ { MINUS_ONE, MINUS_ONE, 8 },
+ vxworks_sh_plt_entry_be,
+ VXWORKS_PLT_ENTRY_SIZE,
+ { 8, 14, 20, FALSE },
+ 12,
+ NULL
+ },
+ {
+ /* Little-endian non-PIC. */
+ vxworks_sh_plt0_entry_le,
+ VXWORKS_PLT_HEADER_SIZE,
+ { MINUS_ONE, MINUS_ONE, 8 },
+ vxworks_sh_plt_entry_le,
+ VXWORKS_PLT_ENTRY_SIZE,
+ { 8, 14, 20, FALSE },
+ 12,
+ NULL
+ },
+ },
+ {
+ {
+ /* Big-endian PIC. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ vxworks_sh_pic_plt_entry_be,
+ VXWORKS_PLT_ENTRY_SIZE,
+ { 8, MINUS_ONE, 20, FALSE },
+ 12,
+ NULL
+ },
+ {
+ /* Little-endian PIC. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ vxworks_sh_pic_plt_entry_le,
+ VXWORKS_PLT_ENTRY_SIZE,
+ { 8, MINUS_ONE, 20, FALSE },
+ 12,
+ NULL
+ },
+ }
+};
-/* Return size of a PLT entry. */
-#define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
+/* FDPIC PLT entries. Two unimplemented optimizations for lazy
+ binding are to omit the lazy binding stub when linking with -z now
+ and to move lazy binding stubs into a separate region for better
+ cache behavior. */
-/* Return offset of the PLT0 address in an absolute PLT entry. */
-#define elf_sh_plt_plt0_offset(info) 16
+#define FDPIC_PLT_ENTRY_SIZE 28
+#define FDPIC_PLT_LAZY_OFFSET 20
-/* Return offset of the linker in PLT0 entry. */
-#define elf_sh_plt0_linker_offset(info) 20
+/* FIXME: The lazy binding stub requires a plt0 - which may need to be
+ duplicated if it is out of range, or which can be inlined. So
+ right now it is always inlined, which wastes a word per stub. It
+ might be easier to handle the duplication if we put the lazy
+ stubs separately. */
-/* Return offset of the GOT id in PLT0 entry. */
-#define elf_sh_plt0_gotid_offset(info) 24
+static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x02, /* mov.l @(12,pc),r0 */
+ 0x01, 0xce, /* mov.l @(r0,r12),r1 */
+ 0x70, 0x04, /* add #4, r0 */
+ 0x41, 0x2b, /* jmp @r1 */
+ 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
+ 0x60, 0xc2, /* mov.l @r12,r0 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x53, 0xc1, /* mov.l @(4,r12),r3 */
+ 0x00, 0x09, /* nop */
+};
-/* Return offset of the tempoline in PLT entry */
-#define elf_sh_plt_temp_offset(info) 8
+static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] =
+{
+ 0x02, 0xd0, /* mov.l @(12,pc),r0 */
+ 0xce, 0x01, /* mov.l @(r0,r12),r1 */
+ 0x04, 0x70, /* add #4, r0 */
+ 0x2b, 0x41, /* jmp @r1 */
+ 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
+ 0xc2, 0x60, /* mov.l @r12,r0 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0xc1, 0x53, /* mov.l @(4,r12),r3 */
+ 0x09, 0x00, /* nop */
+};
-/* Return offset of the symbol in PLT entry. */
-#define elf_sh_plt_symbol_offset(info) 20
+static const struct elf_sh_plt_info fdpic_sh_plts[2] = {
+ {
+ /* Big-endian PIC. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ fdpic_sh_plt_entry_be,
+ FDPIC_PLT_ENTRY_SIZE,
+ { 12, MINUS_ONE, 16, FALSE },
+ FDPIC_PLT_LAZY_OFFSET,
+ NULL
+ },
+ {
+ /* Little-endian PIC. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ fdpic_sh_plt_entry_le,
+ FDPIC_PLT_ENTRY_SIZE,
+ { 12, MINUS_ONE, 16, FALSE },
+ FDPIC_PLT_LAZY_OFFSET,
+ NULL
+ },
+};
-/* Return offset of the relocation in PLT entry. */
-#define elf_sh_plt_reloc_offset(info) 24
+/* On SH2A, we can use the movi20 instruction to generate shorter PLT
+ entries for the first 64K slots. We use the normal FDPIC PLT entry
+ past that point; we could also use movi20s, which might be faster,
+ but would not be any smaller. */
-/* The sh linker needs to keep track of the number of relocs that it
- decides to copy in check_relocs for each symbol. This is so that
- it can discard PC relative relocs if it doesn't need them when
- linking with -Bsymbolic. We store the information in a field
- extending the regular ELF linker hash table. */
+#define FDPIC_SH2A_PLT_ENTRY_SIZE 24
+#define FDPIC_SH2A_PLT_LAZY_OFFSET 16
-/* This structure keeps track of the number of PC relative relocs we
- have copied for a given symbol. */
+static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] =
+{
+ 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
+ 0x01, 0xce, /* mov.l @(r0,r12),r1 */
+ 0x70, 0x04, /* add #4, r0 */
+ 0x41, 0x2b, /* jmp @r1 */
+ 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
+ 0x60, 0xc2, /* mov.l @r12,r0 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x53, 0xc1, /* mov.l @(4,r12),r3 */
+ 0x00, 0x09, /* nop */
+};
-struct elf_sh_pcrel_relocs_copied
+static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] =
{
- /* Next section. */
- struct elf_sh_pcrel_relocs_copied *next;
- /* A section in dynobj. */
- asection *section;
- /* Number of relocs copied in this section. */
- bfd_size_type count;
+ 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
+ 0xce, 0x01, /* mov.l @(r0,r12),r1 */
+ 0x04, 0x70, /* add #4, r0 */
+ 0x2b, 0x41, /* jmp @r1 */
+ 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
+ 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
+ 0xc2, 0x60, /* mov.l @r12,r0 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0xc1, 0x53, /* mov.l @(4,r12),r3 */
+ 0x09, 0x00, /* nop */
};
-/* sh ELF linker hash entry. */
+static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = {
+ /* Big-endian FDPIC, max index 64K. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ fdpic_sh2a_plt_entry_be,
+ FDPIC_SH2A_PLT_ENTRY_SIZE,
+ { 0, MINUS_ONE, 12, TRUE },
+ FDPIC_SH2A_PLT_LAZY_OFFSET,
+ NULL
+};
-struct elf_sh_link_hash_entry
-{
- struct elf_link_hash_entry root;
+static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = {
+ /* Little-endian FDPIC, max index 64K. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ fdpic_sh2a_plt_entry_le,
+ FDPIC_SH2A_PLT_ENTRY_SIZE,
+ { 0, MINUS_ONE, 12, TRUE },
+ FDPIC_SH2A_PLT_LAZY_OFFSET,
+ NULL
+};
- /* Number of PC relative relocs copied for this symbol. */
- struct elf_sh_pcrel_relocs_copied *pcrel_relocs_copied;
+static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = {
+ {
+ /* Big-endian PIC. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ fdpic_sh_plt_entry_be,
+ FDPIC_PLT_ENTRY_SIZE,
+ { 12, MINUS_ONE, 16, FALSE },
+ FDPIC_PLT_LAZY_OFFSET,
+ &fdpic_sh2a_short_plt_be
+ },
+ {
+ /* Little-endian PIC. */
+ NULL,
+ 0,
+ { MINUS_ONE, MINUS_ONE, MINUS_ONE },
+ fdpic_sh_plt_entry_le,
+ FDPIC_PLT_ENTRY_SIZE,
+ { 12, MINUS_ONE, 16, FALSE },
+ FDPIC_PLT_LAZY_OFFSET,
+ &fdpic_sh2a_short_plt_le
+ },
};
-/* sh ELF linker hash table. */
+/* Return the type of PLT associated with ABFD. PIC_P is true if
+ the object is position-independent. */
-struct elf_sh_link_hash_table
+static const struct elf_sh_plt_info *
+get_plt_info (bfd *abfd, bfd_boolean pic_p)
{
- struct elf_link_hash_table root;
-};
+ if (fdpic_object_p (abfd))
+ {
+ /* If any input file requires SH2A we can use a shorter PLT
+ sequence. */
+ if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base)
+ return &fdpic_sh2a_plts[!bfd_big_endian (abfd)];
+ else
+ return &fdpic_sh_plts[!bfd_big_endian (abfd)];
+ }
+ if (vxworks_object_p (abfd))
+ return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)];
+ return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
+}
-/* Declare this now that the above structures are defined. */
+/* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
+ VALUE is the field's value and CODE_P is true if VALUE refers to code,
+ not data. */
-static boolean sh_elf_discard_copies
- PARAMS ((struct elf_sh_link_hash_entry *, PTR));
+inline static void
+install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED,
+ unsigned long value, bfd_byte *addr)
+{
+ bfd_put_32 (output_bfd, value, addr);
+}
+#endif
-/* Traverse an sh ELF linker hash table. */
+/* The number of PLT entries which can use a shorter PLT, if any.
+ Currently always 64K, since only SH-2A FDPIC uses this; a
+ 20-bit movi20 can address that many function descriptors below
+ _GLOBAL_OFFSET_TABLE_. */
+#define MAX_SHORT_PLT 65536
-#define sh_elf_link_hash_traverse(table, func, info) \
- (elf_link_hash_traverse \
+/* Return the index of the PLT entry at byte offset OFFSET. */
+
+static bfd_vma
+get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset)
+{
+ bfd_vma plt_index = 0;
+
+ offset -= info->plt0_entry_size;
+ if (info->short_plt != NULL)
+ {
+ if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size)
+ {
+ plt_index = MAX_SHORT_PLT;
+ offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
+ }
+ else
+ info = info->short_plt;
+ }
+ return plt_index + offset / info->symbol_entry_size;
+}
+
+/* Do the inverse operation. */
+
+static bfd_vma
+get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index)
+{
+ bfd_vma offset = 0;
+
+ if (info->short_plt != NULL)
+ {
+ if (plt_index > MAX_SHORT_PLT)
+ {
+ offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
+ plt_index -= MAX_SHORT_PLT;
+ }
+ else
+ info = info->short_plt;
+ }
+ return (offset + info->plt0_entry_size
+ + (plt_index * info->symbol_entry_size));
+}
+
+/* The sh linker needs to keep track of the number of relocs that it
+ decides to copy as dynamic relocs in check_relocs for each symbol.
+ This is so that it can later discard them if they are found to be
+ unnecessary. We store the information in a field extending the
+ regular ELF linker hash table. */
+
+struct elf_sh_dyn_relocs
+{
+ struct elf_sh_dyn_relocs *next;
+
+ /* The input section of the reloc. */
+ asection *sec;
+
+ /* Total number of relocs copied for the input section. */
+ bfd_size_type count;
+
+ /* Number of pc-relative relocs copied for the input section. */
+ bfd_size_type pc_count;
+};
+
+union gotref
+{
+ bfd_signed_vma refcount;
+ bfd_vma offset;
+};
+
+/* sh ELF linker hash entry. */
+
+struct elf_sh_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+
+#ifdef INCLUDE_SHMEDIA
+ union
+ {
+ bfd_signed_vma refcount;
+ bfd_vma offset;
+ } datalabel_got;
+#endif
+
+ /* Track dynamic relocs copied for this symbol. */
+ struct elf_sh_dyn_relocs *dyn_relocs;
+
+ bfd_signed_vma gotplt_refcount;
+
+ /* A local function descriptor, for FDPIC. The refcount counts
+ R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
+ relocations; the PLT and GOT entry are accounted
+ for separately. After adjust_dynamic_symbol, the offset is
+ MINUS_ONE if there is no local descriptor (dynamic linker
+ managed and no PLT entry, or undefined weak non-dynamic).
+ During check_relocs we do not yet know whether the local
+ descriptor will be canonical. */
+ union gotref funcdesc;
+
+ /* How many of the above refcounted relocations were R_SH_FUNCDESC,
+ and thus require fixups or relocations. */
+ bfd_signed_vma abs_funcdesc_refcount;
+
+ enum got_type {
+ GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC
+ } got_type;
+};
+
+#define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
+
+struct sh_elf_obj_tdata
+{
+ struct elf_obj_tdata root;
+
+ /* got_type for each local got entry. */
+ char *local_got_type;
+
+ /* Function descriptor refcount and offset for each local symbol. */
+ union gotref *local_funcdesc;
+};
+
+#define sh_elf_tdata(abfd) \
+ ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
+
+#define sh_elf_local_got_type(abfd) \
+ (sh_elf_tdata (abfd)->local_got_type)
+
+#define sh_elf_local_funcdesc(abfd) \
+ (sh_elf_tdata (abfd)->local_funcdesc)
+
+#define is_sh_elf(bfd) \
+ (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
+ && elf_tdata (bfd) != NULL \
+ && elf_object_id (bfd) == SH_ELF_DATA)
+
+/* Override the generic function because we need to store sh_elf_obj_tdata
+ as the specific tdata. */
+
+static bfd_boolean
+sh_elf_mkobject (bfd *abfd)
+{
+ return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata),
+ SH_ELF_DATA);
+}
+
+/* sh ELF linker hash table. */
+
+struct elf_sh_link_hash_table
+{
+ struct elf_link_hash_table root;
+
+ /* Short-cuts to get to dynamic linker sections. */
+ asection *sgot;
+ asection *sgotplt;
+ asection *srelgot;
+ asection *splt;
+ asection *srelplt;
+ asection *sdynbss;
+ asection *srelbss;
+ asection *sfuncdesc;
+ asection *srelfuncdesc;
+ asection *srofixup;
+
+ /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
+ asection *srelplt2;
+
+ /* Small local sym cache. */
+ struct sym_cache sym_cache;
+
+ /* A counter or offset to track a TLS got entry. */
+ union
+ {
+ bfd_signed_vma refcount;
+ bfd_vma offset;
+ } tls_ldm_got;
+
+ /* The type of PLT to use. */
+ const struct elf_sh_plt_info *plt_info;
+
+ /* True if the target system is VxWorks. */
+ bfd_boolean vxworks_p;
+
+ /* True if the target system uses FDPIC. */
+ bfd_boolean fdpic_p;
+};
+
+/* Traverse an sh ELF linker hash table. */
+
+#define sh_elf_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
(&(table)->root, \
- (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
(info)))
/* Get the sh ELF linker hash table from a link_info structure. */
#define sh_elf_hash_table(p) \
- ((struct elf_sh_link_hash_table *) ((p)->hash))
+ (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
+ == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
/* Create an entry in an sh ELF linker hash table. */
static struct bfd_hash_entry *
-sh_elf_link_hash_newfunc (entry, table, string)
- struct bfd_hash_entry *entry;
- struct bfd_hash_table *table;
- const char *string;
+sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
{
struct elf_sh_link_hash_entry *ret =
(struct elf_sh_link_hash_entry *) entry;
table, string));
if (ret != (struct elf_sh_link_hash_entry *) NULL)
{
- ret->pcrel_relocs_copied = NULL;
+ ret->dyn_relocs = NULL;
+ ret->gotplt_refcount = 0;
+#ifdef INCLUDE_SHMEDIA
+ ret->datalabel_got.refcount = ret->root.got.refcount;
+#endif
+ ret->funcdesc.refcount = 0;
+ ret->abs_funcdesc_refcount = 0;
+ ret->got_type = GOT_UNKNOWN;
}
return (struct bfd_hash_entry *) ret;
/* Create an sh ELF linker hash table. */
static struct bfd_link_hash_table *
-sh_elf_link_hash_table_create (abfd)
- bfd *abfd;
+sh_elf_link_hash_table_create (bfd *abfd)
{
struct elf_sh_link_hash_table *ret;
bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
- ret = (struct elf_sh_link_hash_table *) bfd_alloc (abfd, amt);
+ ret = (struct elf_sh_link_hash_table *) bfd_malloc (amt);
if (ret == (struct elf_sh_link_hash_table *) NULL)
return NULL;
- if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
- sh_elf_link_hash_newfunc))
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ sh_elf_link_hash_newfunc,
+ sizeof (struct elf_sh_link_hash_entry),
+ SH_ELF_DATA))
{
- bfd_release (abfd, ret);
+ free (ret);
return NULL;
}
+ ret->sgot = NULL;
+ ret->sgotplt = NULL;
+ ret->srelgot = NULL;
+ ret->splt = NULL;
+ ret->srelplt = NULL;
+ ret->sdynbss = NULL;
+ ret->srelbss = NULL;
+ ret->srelplt2 = NULL;
+ ret->sym_cache.abfd = NULL;
+ ret->tls_ldm_got.refcount = 0;
+ ret->plt_info = NULL;
+ ret->vxworks_p = vxworks_object_p (abfd);
+ ret->fdpic_p = fdpic_object_p (abfd);
+
return &ret->root.root;
}
+static bfd_boolean
+sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info, asection *p)
+{
+ struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
+
+ /* Non-FDPIC binaries do not need dynamic symbols for sections. */
+ if (!htab->fdpic_p)
+ return TRUE;
+
+ /* We need dynamic symbols for every section, since segments can
+ relocate independently. */
+ switch (elf_section_data (p)->this_hdr.sh_type)
+ {
+ case SHT_PROGBITS:
+ case SHT_NOBITS:
+ /* If sh_type is yet undecided, assume it could be
+ SHT_PROGBITS/SHT_NOBITS. */
+ case SHT_NULL:
+ return FALSE;
+
+ /* There shouldn't be section relative relocations
+ against any other section. */
+ default:
+ return TRUE;
+ }
+}
+
+/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
+ shortcuts to them in our hash table. */
+
+static bfd_boolean
+create_got_section (bfd *dynobj, struct bfd_link_info *info)
+{
+ struct elf_sh_link_hash_table *htab;
+
+ if (! _bfd_elf_create_got_section (dynobj, info))
+ return FALSE;
+
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ htab->sgot = bfd_get_linker_section (dynobj, ".got");
+ htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
+ htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
+ if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
+ abort ();
+
+ htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc",
+ (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED));
+ if (htab->sfuncdesc == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->sfuncdesc, 2))
+ return FALSE;
+
+ htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj,
+ ".rela.got.funcdesc",
+ (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY));
+ if (htab->srelfuncdesc == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->srelfuncdesc, 2))
+ return FALSE;
+
+ /* Also create .rofixup. */
+ htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup",
+ (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY));
+ if (htab->srofixup == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->srofixup, 2))
+ return FALSE;
+
+ return TRUE;
+}
+
/* Create dynamic sections when linking against a dynamic object. */
-static boolean
-sh_elf_create_dynamic_sections (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+static bfd_boolean
+sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
{
+ struct elf_sh_link_hash_table *htab;
flagword flags, pltflags;
- register asection *s;
- struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ asection *s;
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
int ptralign = 0;
switch (bed->s->arch_size)
default:
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ if (htab->root.dynamic_sections_created)
+ return TRUE;
+
/* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
.rel[a].bss sections. */
if (bed->plt_readonly)
pltflags |= SEC_READONLY;
- s = bfd_make_section (abfd, ".plt");
+ s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
+ htab->splt = s;
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, pltflags)
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
- return false;
+ return FALSE;
if (bed->want_plt_sym)
{
/* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
.plt section. */
- struct elf_link_hash_entry *h = NULL;
+ struct elf_link_hash_entry *h;
+ struct bfd_link_hash_entry *bh = NULL;
+
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, "_PROCEDURE_LINKAGE_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_HASH_DEF_REGULAR;
+ (bfd_vma) 0, (const char *) NULL, FALSE,
+ get_elf_backend_data (abfd)->collect, &bh)))
+ return FALSE;
+
+ h = (struct elf_link_hash_entry *) bh;
+ h->def_regular = 1;
h->type = STT_OBJECT;
+ htab->root.hplt = h;
if (info->shared
- && ! _bfd_elf_link_record_dynamic_symbol (info, h))
- return false;
+ && ! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
}
- s = bfd_make_section (abfd,
- bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
+ s = bfd_make_section_anyway_with_flags (abfd,
+ bed->default_use_rela_p
+ ? ".rela.plt" : ".rel.plt",
+ flags | SEC_READONLY);
+ htab->srelplt = s;
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, ptralign))
- return false;
-
- if (! _bfd_elf_create_got_section (abfd, info))
- return false;
-
- {
- const char *secname;
- char *relname;
- flagword secflags;
- asection *sec;
+ return FALSE;
- for (sec = abfd->sections; sec; sec = sec->next)
- {
- secflags = bfd_get_section_flags (abfd, sec);
- if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
- || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
- continue;
- secname = bfd_get_section_name (abfd, sec);
- relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6);
- strcpy (relname, ".rela");
- strcat (relname, secname);
- s = bfd_make_section (abfd, relname);
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
- || ! bfd_set_section_alignment (abfd, s, ptralign))
- return false;
- }
- }
+ if (htab->sgot == NULL
+ && !create_got_section (abfd, info))
+ return FALSE;
if (bed->want_dynbss)
{
image and use a R_*_COPY reloc to tell the dynamic linker to
initialize them at run time. The linker script puts the .dynbss
section into the .bss section of the final image. */
- s = bfd_make_section (abfd, ".dynbss");
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
- return false;
+ s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
+ SEC_ALLOC | SEC_LINKER_CREATED);
+ htab->sdynbss = s;
+ if (s == NULL)
+ return FALSE;
/* The .rel[a].bss section holds copy relocs. This section is not
normally needed. We need to create it here, though, so that the
copy relocs. */
if (! info->shared)
{
- s = bfd_make_section (abfd,
- (bed->default_use_rela_p
- ? ".rela.bss" : ".rel.bss"));
+ s = bfd_make_section_anyway_with_flags (abfd,
+ (bed->default_use_rela_p
+ ? ".rela.bss" : ".rel.bss"),
+ flags | SEC_READONLY);
+ htab->srelbss = s;
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|| ! bfd_set_section_alignment (abfd, s, ptralign))
- return false;
+ return FALSE;
}
}
- return true;
+ if (htab->vxworks_p)
+ {
+ if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
+ return FALSE;
+ }
+
+ return TRUE;
}
\f
/* Adjust a symbol defined by a dynamic object and referenced by a
change the definition to something the rest of the link can
understand. */
-static boolean
-sh_elf_adjust_dynamic_symbol (info, h)
- struct bfd_link_info *info;
- struct elf_link_hash_entry *h;
+static bfd_boolean
+sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h)
{
- bfd *dynobj;
+ struct elf_sh_link_hash_table *htab;
+ struct elf_sh_link_hash_entry *eh;
+ struct elf_sh_dyn_relocs *p;
asection *s;
- unsigned int power_of_two;
- dynobj = elf_hash_table (info)->dynobj;
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
/* 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)));
+ BFD_ASSERT (htab->root.dynobj != NULL
+ && (h->needs_plt
+ || h->u.weakdef != NULL
+ || (h->def_dynamic
+ && h->ref_regular
+ && !h->def_regular)));
/* If this is a function, put it in the procedure linkage table. We
will fill in the contents of the procedure linkage table later,
when we know the address of the .got section. */
if (h->type == STT_FUNC
- || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ || h->needs_plt)
{
- if (! info->shared
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
- && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
+ if (h->plt.refcount <= 0
+ || SYMBOL_CALLS_LOCAL (info, h)
+ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak))
{
/* This case can occur if we saw a PLT reloc in an input
file, but the symbol was never referred to by a dynamic
object. In such a case, we don't actually need to build
a procedure linkage table, and we can just do a REL32
reloc instead. */
- BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
- return true;
- }
-
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
- {
- if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
- }
-
- s = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (s != NULL);
-
- /* If this is the first .plt entry, make room for the special
- first entry. */
- if (s->_raw_size == 0)
- s->_raw_size += PLT_ENTRY_SIZE;
-
- /* If this symbol is not defined in a regular file, and we are
- not generating a shared library, then set the symbol to this
- location in the .plt. This is required to make function
- pointers compare as equal between the normal executable and
- the shared library. */
- if (! info->shared
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
- {
- h->root.u.def.section = s;
- h->root.u.def.value = s->_raw_size;
+ h->plt.offset = (bfd_vma) -1;
+ h->needs_plt = 0;
}
- h->plt.offset = s->_raw_size;
-
- /* Make room for this entry. */
- s->_raw_size += elf_sh_sizeof_plt (info);
-
- /* We also need to make an entry in the .got.plt section, which
- will be placed in the .got section by the linker script. */
-
- s = bfd_get_section_by_name (dynobj, ".got.plt");
- BFD_ASSERT (s != NULL);
- s->_raw_size += 4;
-
- /* We also need to make an entry in the .rela.plt section. */
-
- s = bfd_get_section_by_name (dynobj, ".rela.plt");
- BFD_ASSERT (s != NULL);
- s->_raw_size += sizeof (Elf32_External_Rela);
-
- return true;
+ return TRUE;
}
+ else
+ h->plt.offset = (bfd_vma) -1;
/* 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)
+ if (h->u.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;
+ BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
+ || h->u.weakdef->root.type == bfd_link_hash_defweak);
+ h->root.u.def.section = h->u.weakdef->root.u.def.section;
+ h->root.u.def.value = h->u.weakdef->root.u.def.value;
+ if (info->nocopyreloc)
+ h->non_got_ref = h->u.weakdef->non_got_ref;
+ return TRUE;
}
/* This is a reference to a symbol defined by a dynamic object which
For such cases we need not do anything here; the relocations will
be handled correctly by relocate_section. */
if (info->shared)
- return true;
+ return TRUE;
/* If there are no references to this symbol that do not use the
GOT, we don't need to generate a copy reloc. */
- if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
- return true;
+ if (!h->non_got_ref)
+ return TRUE;
+
+ /* If -z nocopyreloc was given, we won't generate them either. */
+ if (info->nocopyreloc)
+ {
+ h->non_got_ref = 0;
+ return TRUE;
+ }
+
+ eh = (struct elf_sh_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ s = p->sec->output_section;
+ if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
+ break;
+ }
+
+ /* If we didn't find any dynamic relocs in sections which needs the
+ copy reloc, then we'll be keeping the dynamic relocs and avoiding
+ the copy reloc. */
+ if (p == NULL)
+ {
+ h->non_got_ref = 0;
+ return TRUE;
+ }
/* We must allocate the symbol in our .dynbss section, which will
become part of the .bss section of the executable. There will be
both the dynamic object and the regular object will refer to the
same memory location for the variable. */
- s = bfd_get_section_by_name (dynobj, ".dynbss");
+ s = htab->sdynbss;
BFD_ASSERT (s != NULL);
/* We must generate a R_SH_COPY reloc to tell the dynamic linker to
copy the initial value out of the dynamic object and into the
runtime process image. We need to remember the offset into the
.rela.bss section we are going to use. */
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
{
asection *srel;
- srel = bfd_get_section_by_name (dynobj, ".rela.bss");
+ srel = htab->srelbss;
BFD_ASSERT (srel != NULL);
- srel->_raw_size += sizeof (Elf32_External_Rela);
- h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
+ srel->size += sizeof (Elf32_External_Rela);
+ h->needs_copy = 1;
}
- /* We need to figure out the alignment required for this symbol. I
- have no idea how ELF linkers handle this. */
- power_of_two = bfd_log2 (h->size);
- if (power_of_two > 3)
- power_of_two = 3;
+ return _bfd_elf_adjust_dynamic_copy (h, s);
+}
+
+/* Allocate space in .plt, .got and associated reloc sections for
+ dynamic relocs. */
- /* Apply the required alignment. */
- s->_raw_size = BFD_ALIGN (s->_raw_size,
- (bfd_size_type) (1 << power_of_two));
- if (power_of_two > bfd_get_section_alignment (dynobj, s))
+static bfd_boolean
+allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
+{
+ struct bfd_link_info *info;
+ struct elf_sh_link_hash_table *htab;
+ struct elf_sh_link_hash_entry *eh;
+ struct elf_sh_dyn_relocs *p;
+
+ if (h->root.type == bfd_link_hash_indirect)
+ return TRUE;
+
+ info = (struct bfd_link_info *) inf;
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ eh = (struct elf_sh_link_hash_entry *) h;
+ if ((h->got.refcount > 0
+ || h->forced_local)
+ && eh->gotplt_refcount > 0)
{
- if (! bfd_set_section_alignment (dynobj, s, power_of_two))
- return false;
+ /* The symbol has been forced local, or we have some direct got refs,
+ so treat all the gotplt refs as got refs. */
+ h->got.refcount += eh->gotplt_refcount;
+ if (h->plt.refcount >= eh->gotplt_refcount)
+ h->plt.refcount -= eh->gotplt_refcount;
}
- /* Define the symbol as being at this point in the section. */
- h->root.u.def.section = s;
- h->root.u.def.value = s->_raw_size;
+ if (htab->root.dynamic_sections_created
+ && h->plt.refcount > 0
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && !h->forced_local)
+ {
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
- /* Increment the section size to make room for the symbol. */
- s->_raw_size += h->size;
+ if (info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
+ {
+ asection *s = htab->splt;
+ const struct elf_sh_plt_info *plt_info;
+
+ /* If this is the first .plt entry, make room for the special
+ first entry. */
+ if (s->size == 0)
+ s->size += htab->plt_info->plt0_entry_size;
+
+ h->plt.offset = s->size;
+
+ /* If this symbol is not defined in a regular file, and we are
+ not generating a shared library, then set the symbol to this
+ location in the .plt. This is required to make function
+ pointers compare as equal between the normal executable and
+ the shared library. Skip this for FDPIC, since the
+ function's address will be the address of the canonical
+ function descriptor. */
+ if (!htab->fdpic_p && !info->shared && !h->def_regular)
+ {
+ h->root.u.def.section = s;
+ h->root.u.def.value = h->plt.offset;
+ }
- return true;
-}
+ /* Make room for this entry. */
+ plt_info = htab->plt_info;
+ if (plt_info->short_plt != NULL
+ && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
+ plt_info = plt_info->short_plt;
+ s->size += plt_info->symbol_entry_size;
+
+ /* We also need to make an entry in the .got.plt section, which
+ will be placed in the .got section by the linker script. */
+ if (!htab->fdpic_p)
+ htab->sgotplt->size += 4;
+ else
+ htab->sgotplt->size += 8;
-/* Set the sizes of the dynamic sections. */
+ /* We also need to make an entry in the .rel.plt section. */
+ htab->srelplt->size += sizeof (Elf32_External_Rela);
-static boolean
-sh_elf_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info;
-{
- bfd *dynobj;
- asection *s;
- boolean plt;
- boolean relocs;
+ if (htab->vxworks_p && !info->shared)
+ {
+ /* VxWorks executables have a second set of relocations
+ for each PLT entry. They go in a separate relocation
+ section, which is processed by the kernel loader. */
+
+ /* There is a relocation for the initial PLT entry:
+ an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
+ if (h->plt.offset == htab->plt_info->plt0_entry_size)
+ htab->srelplt2->size += sizeof (Elf32_External_Rela);
+
+ /* There are two extra relocations for each subsequent
+ PLT entry: an R_SH_DIR32 relocation for the GOT entry,
+ and an R_SH_DIR32 relocation for the PLT entry. */
+ htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
+ }
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->needs_plt = 0;
+ }
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->needs_plt = 0;
+ }
- dynobj = elf_hash_table (info)->dynobj;
- BFD_ASSERT (dynobj != NULL);
+ if (h->got.refcount > 0)
+ {
+ asection *s;
+ bfd_boolean dyn;
+ enum got_type got_type = sh_elf_hash_entry (h)->got_type;
+
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && !h->forced_local)
+ {
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ s = htab->sgot;
+ h->got.offset = s->size;
+ s->size += 4;
+ /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
+ if (got_type == GOT_TLS_GD)
+ s->size += 4;
+ dyn = htab->root.dynamic_sections_created;
+ if (!dyn)
+ {
+ /* No dynamic relocations required. */
+ if (htab->fdpic_p && !info->shared
+ && h->root.type != bfd_link_hash_undefweak
+ && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
+ htab->srofixup->size += 4;
+ }
+ /* No dynamic relocations required when IE->LE conversion happens. */
+ else if (got_type == GOT_TLS_IE && !h->def_dynamic && !info->shared)
+ ;
+ /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
+ R_SH_TLS_GD needs one if local symbol and two if global. */
+ else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
+ || got_type == GOT_TLS_IE)
+ htab->srelgot->size += sizeof (Elf32_External_Rela);
+ else if (got_type == GOT_TLS_GD)
+ htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
+ else if (got_type == GOT_FUNCDESC)
+ {
+ if (!info->shared && SYMBOL_FUNCDESC_LOCAL (info, h))
+ htab->srofixup->size += 4;
+ else
+ htab->srelgot->size += sizeof (Elf32_External_Rela);
+ }
+ else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
+ && (info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
+ htab->srelgot->size += sizeof (Elf32_External_Rela);
+ else if (htab->fdpic_p && !info->shared && got_type == GOT_NORMAL
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
+ htab->srofixup->size += 4;
+ }
+ else
+ h->got.offset = (bfd_vma) -1;
- if (elf_hash_table (info)->dynamic_sections_created)
+#ifdef INCLUDE_SHMEDIA
+ if (eh->datalabel_got.refcount > 0)
{
- /* Set the contents of the .interp section to the interpreter. */
- if (! info->shared)
+ asection *s;
+ bfd_boolean dyn;
+
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && !h->forced_local)
{
- s = bfd_get_section_by_name (dynobj, ".interp");
- BFD_ASSERT (s != NULL);
- s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
- s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
}
+
+ s = htab->sgot;
+ eh->datalabel_got.offset = s->size;
+ s->size += 4;
+ dyn = htab->root.dynamic_sections_created;
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
+ htab->srelgot->size += sizeof (Elf32_External_Rela);
}
else
+ eh->datalabel_got.offset = (bfd_vma) -1;
+#endif
+
+ /* Allocate space for any dynamic relocations to function
+ descriptors, canonical or otherwise. We need to relocate the
+ reference unless it resolves to zero, which only happens for
+ undefined weak symbols (either non-default visibility, or when
+ static linking). Any GOT slot is accounted for elsewhere. */
+ if (eh->abs_funcdesc_refcount > 0
+ && (h->root.type != bfd_link_hash_undefweak
+ || (htab->root.dynamic_sections_created
+ && ! SYMBOL_CALLS_LOCAL (info, h))))
{
- /* We may have created entries in the .rela.got section.
- However, if we are not creating the dynamic sections, we will
- not actually use these entries. Reset the size of .rela.got,
- which will cause it to get stripped from the output file
- below. */
- s = bfd_get_section_by_name (dynobj, ".rela.got");
- if (s != NULL)
- s->_raw_size = 0;
+ if (!info->shared && SYMBOL_FUNCDESC_LOCAL (info, h))
+ htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
+ else
+ htab->srelgot->size
+ += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
}
- /* If this is a -Bsymbolic shared link, then we need to discard all
- PC relative relocs against symbols defined in a regular object.
- We allocated space for them in the check_relocs routine, but we
- will not fill them in in the relocate_section routine. */
- if (info->shared && info->symbolic)
- sh_elf_link_hash_traverse (sh_elf_hash_table (info),
- sh_elf_discard_copies,
- (PTR) NULL);
-
- /* The check_relocs and adjust_dynamic_symbol entry points have
- determined the sizes of the various dynamic sections. Allocate
- memory for them. */
- plt = false;
- relocs = false;
- for (s = dynobj->sections; s != NULL; s = s->next)
+ /* We must allocate a function descriptor if there are references to
+ a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
+ the dynamic linker isn't going to allocate it. None of this
+ applies if we already created one in .got.plt, but if the
+ canonical function descriptor can be in this object, there
+ won't be a PLT entry at all. */
+ if ((eh->funcdesc.refcount > 0
+ || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
+ && h->root.type != bfd_link_hash_undefweak
+ && SYMBOL_FUNCDESC_LOCAL (info, h))
{
- const char *name;
- boolean strip;
-
- if ((s->flags & SEC_LINKER_CREATED) == 0)
- continue;
+ /* Make room for this function descriptor. */
+ eh->funcdesc.offset = htab->sfuncdesc->size;
+ htab->sfuncdesc->size += 8;
+
+ /* We will need a relocation or two fixups to initialize the
+ function descriptor, so allocate those too. */
+ if (!info->shared && SYMBOL_CALLS_LOCAL (info, h))
+ htab->srofixup->size += 8;
+ else
+ htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
+ }
- /* 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 (eh->dyn_relocs == NULL)
+ return TRUE;
- strip = false;
+ /* In the shared -Bsymbolic case, discard space allocated for
+ dynamic pc-relative relocs against symbols which turn out to be
+ defined in regular objects. For the normal shared case, discard
+ space for pc-relative relocs that have become local due to symbol
+ visibility changes. */
- if (strcmp (name, ".plt") == 0)
+ if (info->shared)
+ {
+ if (SYMBOL_CALLS_LOCAL (info, h))
{
- if (s->_raw_size == 0)
- {
- /* Strip this section if we don't need it; see the
- comment below. */
- strip = true;
- }
- else
+ struct elf_sh_dyn_relocs **pp;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
{
- /* Remember whether there is a PLT. */
- plt = true;
+ p->count -= p->pc_count;
+ p->pc_count = 0;
+ if (p->count == 0)
+ *pp = p->next;
+ else
+ pp = &p->next;
}
}
- else if (strncmp (name, ".rela", 5) == 0)
+
+ if (htab->vxworks_p)
{
- if (s->_raw_size == 0)
+ struct elf_sh_dyn_relocs **pp;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
{
- /* If we don't need this section, strip it from the
- output file. This is mostly to handle .rela.bss and
- .rela.plt. We must create both sections in
- create_dynamic_sections, because they must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
- strip = true;
+ if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
+ *pp = p->next;
+ else
+ pp = &p->next;
}
- else
+ }
+
+ /* Also discard relocs on undefined weak syms with non-default
+ visibility. */
+ if (eh->dyn_relocs != NULL
+ && h->root.type == bfd_link_hash_undefweak)
+ {
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
+ eh->dyn_relocs = NULL;
+
+ /* Make sure undefined weak symbols are output as a dynamic
+ symbol in PIEs. */
+ else if (h->dynindx == -1
+ && !h->forced_local)
{
- /* Remember whether there are any reloc sections other
- than .rela.plt. */
- if (strcmp (name, ".rela.plt") != 0)
- relocs = true;
-
- /* We use the reloc_count field as a counter if we need
- to copy relocs into the output file. */
- s->reloc_count = 0;
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
}
}
- else if (strncmp (name, ".got", 4) != 0)
+ }
+ else
+ {
+ /* For the non-shared case, discard space for relocs against
+ symbols which turn out to need copy relocs or are not
+ dynamic. */
+
+ if (!h->non_got_ref
+ && ((h->def_dynamic
+ && !h->def_regular)
+ || (htab->root.dynamic_sections_created
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_undefined))))
{
- /* It's not one of our sections, so don't allocate space. */
- continue;
- }
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && !h->forced_local)
+ {
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
- if (strip)
- {
- _bfd_strip_section_from_output (info, s);
- continue;
+ /* If that succeeded, we know we'll be keeping all the
+ relocs. */
+ if (h->dynindx != -1)
+ goto keep;
}
- /* Allocate memory for the section contents. */
- s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
- if (s->contents == NULL && s->_raw_size != 0)
- return false;
+ eh->dyn_relocs = NULL;
+
+ keep: ;
}
- if (elf_hash_table (info)->dynamic_sections_created)
+ /* Finally, allocate space. */
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
- /* Add some entries to the .dynamic section. We fill in the
- values later, in sh_elf_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. */
-#define add_dynamic_entry(TAG, VAL) \
- bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
+ asection *sreloc = elf_section_data (p->sec)->sreloc;
+ sreloc->size += p->count * sizeof (Elf32_External_Rela);
- if (! info->shared)
- {
- if (!add_dynamic_entry (DT_DEBUG, 0))
- return false;
- }
+ /* If we need relocations, we do not need fixups. */
+ if (htab->fdpic_p && !info->shared)
+ htab->srofixup->size -= 4 * (p->count - p->pc_count);
+ }
- if (plt)
- {
- if (!add_dynamic_entry (DT_PLTGOT, 0)
- || !add_dynamic_entry (DT_PLTRELSZ, 0)
- || !add_dynamic_entry (DT_PLTREL, DT_RELA)
- || !add_dynamic_entry (DT_JMPREL, 0))
- return false;
- }
+ return TRUE;
+}
- if (relocs)
- {
- if (!add_dynamic_entry (DT_RELA, 0)
- || !add_dynamic_entry (DT_RELASZ, 0)
- || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
- return false;
- }
+/* Find any dynamic relocs that apply to read-only sections. */
+
+static bfd_boolean
+readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
+{
+ struct elf_sh_link_hash_entry *eh;
+ struct elf_sh_dyn_relocs *p;
- if ((info->flags & DF_TEXTREL) != 0)
+ eh = (struct elf_sh_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *s = p->sec->output_section;
+
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
{
- if (!add_dynamic_entry (DT_TEXTREL, 0))
- return false;
+ struct bfd_link_info *info = (struct bfd_link_info *) inf;
+
+ info->flags |= DF_TEXTREL;
+
+ /* Not an error, just cut short the traversal. */
+ return FALSE;
}
}
-#undef add_dynamic_entry
-
- return true;
+ return TRUE;
}
-/* This function is called via sh_elf_link_hash_traverse if we are
- creating a shared object with -Bsymbolic. It discards the space
- allocated to copy PC relative relocs against symbols which are
- defined in regular objects. We allocated space for them in the
- check_relocs routine, but we won't fill them in in the
- relocate_section routine. */
-
-static boolean
-sh_elf_discard_copies (h, ignore)
- struct elf_sh_link_hash_entry *h;
- PTR ignore ATTRIBUTE_UNUSED;
-{
- struct elf_sh_pcrel_relocs_copied *s;
-
- /* We only discard relocs for symbols defined in a regular object. */
- if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
- return true;
+/* This function is called after all the input files have been read,
+ and the input sections have been assigned to output sections.
+ It's a convenient place to determine the PLT style. */
- for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
- s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
+static bfd_boolean
+sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
+{
+ sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd, info->shared);
- return true;
+ if (sh_elf_hash_table (info)->fdpic_p && !info->relocatable
+ && !bfd_elf_stack_segment_size (output_bfd, info,
+ "__stacksize", DEFAULT_STACK_SIZE))
+ return FALSE;
+ return TRUE;
}
-\f
-/* Relocate an SH ELF section. */
-static boolean
-sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd *output_bfd ATTRIBUTE_UNUSED;
- 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;
+/* Set the sizes of the dynamic sections. */
+
+static bfd_boolean
+sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
{
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- Elf_Internal_Rela *rel, *relend;
+ struct elf_sh_link_hash_table *htab;
bfd *dynobj;
- bfd_vma *local_got_offsets;
- asection *sgot;
- asection *splt;
- asection *sreloc;
+ asection *s;
+ bfd_boolean relocs;
+ bfd *ibfd;
+
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ dynobj = htab->root.dynobj;
+ BFD_ASSERT (dynobj != NULL);
+
+ if (htab->root.dynamic_sections_created)
+ {
+ /* Set the contents of the .interp section to the interpreter. */
+ if (info->executable)
+ {
+ s = bfd_get_linker_section (dynobj, ".interp");
+ BFD_ASSERT (s != NULL);
+ s->size = sizeof ELF_DYNAMIC_INTERPRETER;
+ s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
+ }
+ }
+
+ /* Set up .got offsets for local syms, and space for local dynamic
+ relocs. */
+ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
+ {
+ bfd_signed_vma *local_got;
+ bfd_signed_vma *end_local_got;
+ union gotref *local_funcdesc, *end_local_funcdesc;
+ char *local_got_type;
+ bfd_size_type locsymcount;
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *srel;
+
+ if (! is_sh_elf (ibfd))
+ continue;
+
+ for (s = ibfd->sections; s != NULL; s = s->next)
+ {
+ struct elf_sh_dyn_relocs *p;
+
+ for (p = ((struct elf_sh_dyn_relocs *)
+ elf_section_data (s)->local_dynrel);
+ p != NULL;
+ p = p->next)
+ {
+ if (! bfd_is_abs_section (p->sec)
+ && bfd_is_abs_section (p->sec->output_section))
+ {
+ /* Input section has been discarded, either because
+ it is a copy of a linkonce section or due to
+ linker script /DISCARD/, so we'll be discarding
+ the relocs too. */
+ }
+ else if (htab->vxworks_p
+ && strcmp (p->sec->output_section->name,
+ ".tls_vars") == 0)
+ {
+ /* Relocations in vxworks .tls_vars sections are
+ handled specially by the loader. */
+ }
+ else if (p->count != 0)
+ {
+ srel = elf_section_data (p->sec)->sreloc;
+ srel->size += p->count * sizeof (Elf32_External_Rela);
+ if ((p->sec->output_section->flags & SEC_READONLY) != 0)
+ info->flags |= DF_TEXTREL;
+
+ /* If we need relocations, we do not need fixups. */
+ if (htab->fdpic_p && !info->shared)
+ htab->srofixup->size -= 4 * (p->count - p->pc_count);
+ }
+ }
+ }
+
+ symtab_hdr = &elf_symtab_hdr (ibfd);
+ locsymcount = symtab_hdr->sh_info;
+#ifdef INCLUDE_SHMEDIA
+ /* Count datalabel local GOT. */
+ locsymcount *= 2;
+#endif
+ s = htab->sgot;
+ srel = htab->srelgot;
+
+ local_got = elf_local_got_refcounts (ibfd);
+ if (local_got)
+ {
+ end_local_got = local_got + locsymcount;
+ local_got_type = sh_elf_local_got_type (ibfd);
+ local_funcdesc = sh_elf_local_funcdesc (ibfd);
+ for (; local_got < end_local_got; ++local_got)
+ {
+ if (*local_got > 0)
+ {
+ *local_got = s->size;
+ s->size += 4;
+ if (*local_got_type == GOT_TLS_GD)
+ s->size += 4;
+ if (info->shared)
+ srel->size += sizeof (Elf32_External_Rela);
+ else
+ htab->srofixup->size += 4;
+
+ if (*local_got_type == GOT_FUNCDESC)
+ {
+ if (local_funcdesc == NULL)
+ {
+ bfd_size_type size;
+
+ size = locsymcount * sizeof (union gotref);
+ local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
+ size);
+ if (local_funcdesc == NULL)
+ return FALSE;
+ sh_elf_local_funcdesc (ibfd) = local_funcdesc;
+ local_funcdesc += (local_got
+ - elf_local_got_refcounts (ibfd));
+ }
+ local_funcdesc->refcount++;
+ ++local_funcdesc;
+ }
+ }
+ else
+ *local_got = (bfd_vma) -1;
+ ++local_got_type;
+ }
+ }
+
+ local_funcdesc = sh_elf_local_funcdesc (ibfd);
+ if (local_funcdesc)
+ {
+ end_local_funcdesc = local_funcdesc + locsymcount;
+
+ for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
+ {
+ if (local_funcdesc->refcount > 0)
+ {
+ local_funcdesc->offset = htab->sfuncdesc->size;
+ htab->sfuncdesc->size += 8;
+ if (!info->shared)
+ htab->srofixup->size += 8;
+ else
+ htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
+ }
+ else
+ local_funcdesc->offset = MINUS_ONE;
+ }
+ }
+
+ }
+
+ if (htab->tls_ldm_got.refcount > 0)
+ {
+ /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
+ relocs. */
+ htab->tls_ldm_got.offset = htab->sgot->size;
+ htab->sgot->size += 8;
+ htab->srelgot->size += sizeof (Elf32_External_Rela);
+ }
+ else
+ htab->tls_ldm_got.offset = -1;
+
+ /* Only the reserved entries should be present. For FDPIC, they go at
+ the end of .got.plt. */
+ if (htab->fdpic_p)
+ {
+ BFD_ASSERT (htab->sgotplt && htab->sgotplt->size == 12);
+ htab->sgotplt->size = 0;
+ }
+
+ /* Allocate global sym .plt and .got entries, and space for global
+ sym dynamic relocs. */
+ elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
+
+ /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
+ end of the FDPIC .got.plt. */
+ if (htab->fdpic_p)
+ {
+ htab->root.hgot->root.u.def.value = htab->sgotplt->size;
+ htab->sgotplt->size += 12;
+ }
+
+ /* At the very end of the .rofixup section is a pointer to the GOT. */
+ if (htab->fdpic_p && htab->srofixup != NULL)
+ htab->srofixup->size += 4;
+
+ /* We now have determined the sizes of the various dynamic sections.
+ Allocate memory for them. */
+ relocs = FALSE;
+ for (s = dynobj->sections; s != NULL; s = s->next)
+ {
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
+ continue;
+
+ if (s == htab->splt
+ || s == htab->sgot
+ || s == htab->sgotplt
+ || s == htab->sfuncdesc
+ || s == htab->srofixup
+ || s == htab->sdynbss)
+ {
+ /* Strip this section if we don't need it; see the
+ comment below. */
+ }
+ else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
+ {
+ if (s->size != 0 && s != htab->srelplt && s != htab->srelplt2)
+ relocs = TRUE;
+
+ /* We use the reloc_count field as a counter if we need
+ to copy relocs into the output file. */
+ s->reloc_count = 0;
+ }
+ else
+ {
+ /* It's not one of our sections, so don't allocate space. */
+ continue;
+ }
+
+ if (s->size == 0)
+ {
+ /* If we don't need this section, strip it from the
+ output file. This is mostly to handle .rela.bss and
+ .rela.plt. We must create both sections in
+ create_dynamic_sections, because they must be created
+ before the linker maps input sections to output
+ sections. The linker does that before
+ adjust_dynamic_symbol is called, and it is that
+ function which decides whether anything needs to go
+ into these sections. */
+
+ s->flags |= SEC_EXCLUDE;
+ continue;
+ }
+
+ if ((s->flags & SEC_HAS_CONTENTS) == 0)
+ continue;
+
+ /* Allocate memory for the section contents. We use bfd_zalloc
+ here in case unused entries are not reclaimed before the
+ section's contents are written out. This should not happen,
+ but this way if it does, we get a R_SH_NONE reloc instead
+ of garbage. */
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
+ if (s->contents == NULL)
+ return FALSE;
+ }
+
+ if (htab->root.dynamic_sections_created)
+ {
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in sh_elf_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. */
+#define add_dynamic_entry(TAG, VAL) \
+ _bfd_elf_add_dynamic_entry (info, TAG, VAL)
+
+ if (info->executable)
+ {
+ if (! add_dynamic_entry (DT_DEBUG, 0))
+ return FALSE;
+ }
+
+ if (htab->splt->size != 0)
+ {
+ if (! add_dynamic_entry (DT_PLTGOT, 0)
+ || ! add_dynamic_entry (DT_PLTRELSZ, 0)
+ || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
+ || ! add_dynamic_entry (DT_JMPREL, 0))
+ return FALSE;
+ }
+ else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC)
+ && htab->sgot->size != 0)
+ {
+ if (! add_dynamic_entry (DT_PLTGOT, 0))
+ return FALSE;
+ }
+
+ if (relocs)
+ {
+ if (! add_dynamic_entry (DT_RELA, 0)
+ || ! add_dynamic_entry (DT_RELASZ, 0)
+ || ! add_dynamic_entry (DT_RELAENT,
+ sizeof (Elf32_External_Rela)))
+ return FALSE;
+
+ /* If any dynamic relocs apply to a read-only section,
+ then we need a DT_TEXTREL entry. */
+ if ((info->flags & DF_TEXTREL) == 0)
+ elf_link_hash_traverse (&htab->root, readonly_dynrelocs, info);
+
+ if ((info->flags & DF_TEXTREL) != 0)
+ {
+ if (! add_dynamic_entry (DT_TEXTREL, 0))
+ return FALSE;
+ }
+ }
+ if (htab->vxworks_p
+ && !elf_vxworks_add_dynamic_entries (output_bfd, info))
+ return FALSE;
+ }
+#undef add_dynamic_entry
+
+ return TRUE;
+}
+\f
+/* Add a dynamic relocation to the SRELOC section. */
+
+inline static bfd_vma
+sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
+ int reloc_type, long dynindx, bfd_vma addend)
+{
+ Elf_Internal_Rela outrel;
+ bfd_vma reloc_offset;
+
+ outrel.r_offset = offset;
+ outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
+ outrel.r_addend = addend;
+
+ reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
+ BFD_ASSERT (reloc_offset < sreloc->size);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ sreloc->contents + reloc_offset);
+ sreloc->reloc_count++;
+
+ return reloc_offset;
+}
+
+/* Add an FDPIC read-only fixup. */
+
+inline static void
+sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
+{
+ bfd_vma fixup_offset;
+
+ fixup_offset = srofixup->reloc_count++ * 4;
+ BFD_ASSERT (fixup_offset < srofixup->size);
+ bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
+}
+
+/* Return the offset of the generated .got section from the
+ _GLOBAL_OFFSET_TABLE_ symbol. */
+
+static bfd_signed_vma
+sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
+{
+ return (htab->sgot->output_offset - htab->sgotplt->output_offset
+ - htab->root.hgot->root.u.def.value);
+}
+
+/* Find the segment number in which OSEC, and output section, is
+ located. */
+
+static unsigned
+sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
+{
+ Elf_Internal_Phdr *p = NULL;
+
+ if (output_bfd->xvec->flavour == bfd_target_elf_flavour)
+ p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
+
+ /* FIXME: Nothing ever says what this index is relative to. The kernel
+ supplies data in terms of the number of load segments but this is
+ a phdr index and the first phdr may not be a load segment. */
+ return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
+}
+
+static bfd_boolean
+sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
+{
+ unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
+
+ return (seg != (unsigned) -1
+ && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
+}
+
+/* Generate the initial contents of a local function descriptor, along
+ with any relocations or fixups required. */
+static bfd_boolean
+sh_elf_initialize_funcdesc (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
+ bfd_vma offset,
+ asection *section,
+ bfd_vma value)
+{
+ struct elf_sh_link_hash_table *htab;
+ int dynindx;
+ bfd_vma addr, seg;
+
+ htab = sh_elf_hash_table (info);
+
+ /* FIXME: The ABI says that the offset to the function goes in the
+ descriptor, along with the segment index. We're RELA, so it could
+ go in the reloc instead... */
+
+ if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
+ {
+ section = h->root.u.def.section;
+ value = h->root.u.def.value;
+ }
+
+ if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
+ {
+ dynindx = elf_section_data (section->output_section)->dynindx;
+ addr = value + section->output_offset;
+ seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
+ }
+ else
+ {
+ BFD_ASSERT (h->dynindx != -1);
+ dynindx = h->dynindx;
+ addr = seg = 0;
+ }
+
+ if (!info->shared && SYMBOL_CALLS_LOCAL (info, h))
+ {
+ if (h == NULL || h->root.type != bfd_link_hash_undefweak)
+ {
+ sh_elf_add_rofixup (output_bfd, htab->srofixup,
+ offset
+ + htab->sfuncdesc->output_section->vma
+ + htab->sfuncdesc->output_offset);
+ sh_elf_add_rofixup (output_bfd, htab->srofixup,
+ offset + 4
+ + htab->sfuncdesc->output_section->vma
+ + htab->sfuncdesc->output_offset);
+ }
+
+ /* There are no dynamic relocations so fill in the final
+ address and gp value (barring fixups). */
+ addr += section->output_section->vma;
+ seg = htab->root.hgot->root.u.def.value
+ + htab->root.hgot->root.u.def.section->output_section->vma
+ + htab->root.hgot->root.u.def.section->output_offset;
+ }
+ else
+ sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
+ offset
+ + htab->sfuncdesc->output_section->vma
+ + htab->sfuncdesc->output_offset,
+ R_SH_FUNCDESC_VALUE, dynindx, 0);
+
+ bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
+ bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
+
+ return TRUE;
+}
+
+/* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
+ VALUE is the field's value. Return bfd_reloc_ok if successful or an error
+ otherwise. */
+
+static bfd_reloc_status_type
+install_movi20_field (bfd *output_bfd, unsigned long relocation,
+ bfd *input_bfd, asection *input_section,
+ bfd_byte *contents, bfd_vma offset)
+{
+ unsigned long cur_val;
+ bfd_byte *addr;
+ bfd_reloc_status_type r;
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (offset > bfd_get_section_limit (input_bfd, input_section))
+ return bfd_reloc_outofrange;
+
+ r = bfd_check_overflow (complain_overflow_signed, 20, 0,
+ bfd_arch_bits_per_address (input_bfd), relocation);
+ if (r != bfd_reloc_ok)
+ return r;
+
+ addr = contents + offset;
+ cur_val = bfd_get_16 (output_bfd, addr);
+ bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
+ bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
+
+ return bfd_reloc_ok;
+}
+
+/* Relocate an SH ELF section. */
+
+static bfd_boolean
+sh_elf_relocate_section (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)
+{
+ struct elf_sh_link_hash_table *htab;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel, *relend;
+ bfd *dynobj = NULL;
+ bfd_vma *local_got_offsets;
+ asection *sgot = NULL;
+ asection *sgotplt = NULL;
+ asection *splt = NULL;
+ asection *sreloc = NULL;
+ asection *srelgot = NULL;
+ bfd_boolean is_vxworks_tls;
+ unsigned isec_segment, got_segment, plt_segment, check_segment[2];
+ bfd_boolean fdpic_p = FALSE;
+
+ BFD_ASSERT (is_sh_elf (input_bfd));
+
+ htab = sh_elf_hash_table (info);
+ if (htab != NULL)
+ {
+ dynobj = htab->root.dynobj;
+ sgot = htab->sgot;
+ sgotplt = htab->sgotplt;
+ splt = htab->splt;
+ fdpic_p = htab->fdpic_p;
+ }
+ symtab_hdr = &elf_symtab_hdr (input_bfd);
sym_hashes = elf_sym_hashes (input_bfd);
- dynobj = elf_hash_table (info)->dynobj;
local_got_offsets = elf_local_got_offsets (input_bfd);
- sgot = NULL;
- splt = NULL;
- sreloc = NULL;
+ isec_segment = sh_elf_osec_to_segment (output_bfd,
+ input_section->output_section);
+ if (fdpic_p && sgot)
+ got_segment = sh_elf_osec_to_segment (output_bfd,
+ sgot->output_section);
+ else
+ got_segment = -1;
+ if (fdpic_p && splt)
+ plt_segment = sh_elf_osec_to_segment (output_bfd,
+ splt->output_section);
+ else
+ plt_segment = -1;
+
+ /* We have to handle relocations in vxworks .tls_vars sections
+ specially, because the dynamic loader is 'weird'. */
+ is_vxworks_tls = (htab && htab->vxworks_p && info->shared
+ && !strcmp (input_section->output_section->name,
+ ".tls_vars"));
rel = relocs;
relend = relocs + input_section->reloc_count;
bfd_vma relocation;
bfd_vma addend = (bfd_vma) 0;
bfd_reloc_status_type r;
+ int seen_stt_datalabel = 0;
+ bfd_vma off;
+ enum got_type got_type;
+ const char *symname = NULL;
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
/* Many of the relocs are only used for relaxing, and are
- handled entirely by the relaxation code. */
- if (r_type > (int) R_SH_LAST_INVALID_RELOC
- && r_type < (int) R_SH_LOOP_START)
+ handled entirely by the relaxation code. */
+ if (r_type >= (int) R_SH_GNU_VTINHERIT
+ && r_type <= (int) R_SH_LABEL)
continue;
if (r_type == (int) R_SH_NONE)
continue;
|| (r_type >= (int) R_SH_FIRST_INVALID_RELOC
&& r_type <= (int) R_SH_LAST_INVALID_RELOC)
|| (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
- && r_type <= (int) R_SH_LAST_INVALID_RELOC_2))
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
+ || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
+ || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
+ || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
+ || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
{
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
- howto = sh_elf_howto_table + r_type;
+ howto = get_howto_table (output_bfd) + r_type;
+
+ /* For relocs that aren't partial_inplace, we get the addend from
+ the relocation. */
+ if (! howto->partial_inplace)
+ addend = rel->r_addend;
- /* This is a final link. */
h = NULL;
sym = NULL;
sec = NULL;
+ check_segment[0] = -1;
+ check_segment[1] = -1;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
+
+ symname = bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name);
+ if (symname == NULL || *symname == '\0')
+ symname = bfd_section_name (input_bfd, sec);
+
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
-
- if (info->relocateable)
+ /* A local symbol never has STO_SH5_ISA32, so we don't need
+ datalabel processing here. Make sure this does not change
+ without notice. */
+ if ((sym->st_other & STO_SH5_ISA32) != 0)
+ ((*info->callbacks->reloc_dangerous)
+ (info,
+ _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
+ input_bfd, input_section, rel->r_offset));
+
+ if (sec != NULL && discarded_section (sec))
+ /* Handled below. */
+ ;
+ else if (info->relocatable)
{
- /* This is a relocateable link. We don't have to change
+ /* This is a relocatable link. We don't have to change
anything, unless the reloc is against a section symbol,
in which case we have to adjust according to where the
section symbol winds up in the output section. */
- sym = local_syms + r_symndx;
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- goto final_link_relocate;
+ {
+ if (! howto->partial_inplace)
+ {
+ /* For relocations with the addend in the
+ relocation, we need just to update the addend.
+ All real relocs are of type partial_inplace; this
+ code is mostly for completeness. */
+ rel->r_addend += sec->output_offset;
+
+ continue;
+ }
+
+ /* Relocs of type partial_inplace need to pick up the
+ contents in the contents and add the offset resulting
+ from the changed location of the section symbol.
+ Using _bfd_final_link_relocate (e.g. goto
+ final_link_relocate) here would be wrong, because
+ relocations marked pc_relative would get the current
+ location subtracted, and we must only do that at the
+ final link. */
+ r = _bfd_relocate_contents (howto, input_bfd,
+ sec->output_offset
+ + sym->st_value,
+ contents + rel->r_offset);
+ goto relocation_done;
+ }
continue;
}
+ else if (! howto->partial_inplace)
+ {
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+ addend = rel->r_addend;
+ }
+ else if ((sec->flags & SEC_MERGE)
+ && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ asection *msec;
+
+ if (howto->rightshift || howto->src_mask != 0xffffffff)
+ {
+ (*_bfd_error_handler)
+ (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
+ input_bfd, input_section,
+ (long) rel->r_offset, howto->name);
+ return FALSE;
+ }
+
+ addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
+ msec = sec;
+ addend =
+ _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
+ - relocation;
+ addend += msec->output_section->vma + msec->output_offset;
+ bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
+ addend = 0;
+ }
}
else
{
- /* Section symbol are never (?) placed in the hash table, so
- we can just ignore hash relocations when creating a
- relocateable object file. */
- if (info->relocateable)
- continue;
+ /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
+ relocation = 0;
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ symname = h->root.root.string;
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ {
+#ifdef INCLUDE_SHMEDIA
+ /* If the reference passes a symbol marked with
+ STT_DATALABEL, then any STO_SH5_ISA32 on the final value
+ doesn't count. */
+ seen_stt_datalabel |= h->type == STT_DATALABEL;
+#endif
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ }
if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
+ bfd_boolean dyn;
+
+ dyn = htab ? htab->root.dynamic_sections_created : FALSE;
sec = h->root.u.def.section;
/* In these cases, we don't need the relocation value.
We check specially because in some obscure cases
sec->output_section will be NULL. */
if (r_type == R_SH_GOTPC
- || (r_type == R_SH_PLT32
+ || r_type == R_SH_GOTPC_LOW16
+ || r_type == R_SH_GOTPC_MEDLOW16
+ || r_type == R_SH_GOTPC_MEDHI16
+ || r_type == R_SH_GOTPC_HI16
+ || ((r_type == R_SH_PLT32
+ || r_type == R_SH_PLT_LOW16
+ || r_type == R_SH_PLT_MEDLOW16
+ || r_type == R_SH_PLT_MEDHI16
+ || r_type == R_SH_PLT_HI16)
&& h->plt.offset != (bfd_vma) -1)
- || (r_type == R_SH_GOT32
- && elf_hash_table (info)->dynamic_sections_created
+ || ((r_type == R_SH_GOT32
+ || r_type == R_SH_GOT20
+ || r_type == R_SH_GOTFUNCDESC
+ || r_type == R_SH_GOTFUNCDESC20
+ || r_type == R_SH_GOTOFFFUNCDESC
+ || r_type == R_SH_GOTOFFFUNCDESC20
+ || r_type == R_SH_FUNCDESC
+ || r_type == R_SH_GOT_LOW16
+ || r_type == R_SH_GOT_MEDLOW16
+ || r_type == R_SH_GOT_MEDHI16
+ || r_type == R_SH_GOT_HI16)
+ && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
&& (! info->shared
|| (! info->symbolic && h->dynindx != -1)
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ || !h->def_regular))
/* The cases above are those in which relocation is
overwritten in the switch block below. The cases
below are those in which we must defer relocation
addresses when creating a shared library. */
|| (info->shared
&& ((! info->symbolic && h->dynindx != -1)
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ || !h->def_regular)
&& ((r_type == R_SH_DIR32
- && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
- || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
- || r_type == R_SH_REL32)
+ && !h->forced_local)
+ || (r_type == R_SH_REL32
+ && !SYMBOL_CALLS_LOCAL (info, h)))
&& ((input_section->flags & SEC_ALLOC) != 0
/* DWARF will emit R_SH_DIR32 relocations in its
sections against symbols defined externally
in shared libraries. We can't do anything
with them here. */
- || (input_section->flags & SEC_DEBUGGING) != 0)))
- relocation = 0;
- else if (sec->output_section == NULL)
+ || ((input_section->flags & SEC_DEBUGGING) != 0
+ && h->def_dynamic)))
+ /* Dynamic relocs are not propagated for SEC_DEBUGGING
+ sections because such sections are not SEC_ALLOC and
+ thus ld.so will not process them. */
+ || (sec->output_section == NULL
+ && ((input_section->flags & SEC_DEBUGGING) != 0
+ && h->def_dynamic))
+ || (sec->output_section == NULL
+ && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
+ || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
+ ;
+ else if (sec->output_section != NULL)
+ relocation = ((h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset)
+ /* A STO_SH5_ISA32 causes a "bitor 1" to the
+ symbol value, unless we've seen
+ STT_DATALABEL on the way to it. */
+ | ((h->other & STO_SH5_ISA32) != 0
+ && ! seen_stt_datalabel));
+ else if (!info->relocatable
+ && (_bfd_elf_section_offset (output_bfd, info,
+ input_section,
+ rel->r_offset)
+ != (bfd_vma) -1))
{
(*_bfd_error_handler)
- (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
- bfd_archive_filename (input_bfd), h->root.root.string,
- bfd_get_section_name (input_bfd, input_section));
- relocation = 0;
+ (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
+ input_bfd,
+ input_section,
+ (long) rel->r_offset,
+ howto->name,
+ h->root.root.string);
+ return FALSE;
}
- else
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
}
else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
- else if (info->shared
- && (!info->symbolic || info->allow_shlib_undefined)
- && !info->no_undefined)
- relocation = 0;
- else
+ ;
+ else if (info->unresolved_syms_in_objects == RM_IGNORE
+ && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
+ ;
+ else if (!info->relocatable)
{
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset, true)))
- return false;
- relocation = 0;
+ if (! info->callbacks->undefined_symbol
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset,
+ (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
+ || ELF_ST_VISIBILITY (h->other))))
+ return FALSE;
}
}
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ if (info->relocatable)
+ continue;
+
+ /* Check for inter-segment relocations in FDPIC files. Most
+ relocations connect the relocation site to the location of
+ the target symbol, but there are some exceptions below. */
+ check_segment[0] = isec_segment;
+ if (sec != NULL)
+ check_segment[1] = sh_elf_osec_to_segment (output_bfd,
+ sec->output_section);
+ else
+ check_segment[1] = -1;
+
switch ((int) r_type)
{
final_link_relocate:
break;
case R_SH_IND12W:
- relocation -= 4;
goto final_link_relocate;
case R_SH_DIR8WPN:
if (disp & mask)
{
((*_bfd_error_handler)
- (_("%s: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
- bfd_archive_filename (input_section->owner),
+ (_("%B: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
+ input_section->owner,
(unsigned long) rel->r_offset));
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
relocation -= 4;
goto final_link_relocate;
break;
default:
+#ifdef INCLUDE_SHMEDIA
+ if (shmedia_prepare_reloc (info, input_bfd, input_section,
+ contents, rel, &relocation))
+ goto final_link_relocate;
+#endif
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
- case R_SH_DIR32:
- case R_SH_REL32:
- if (info->shared
- && (input_section->flags & SEC_ALLOC) != 0
- && (r_type != R_SH_REL32
- || (h != NULL
- && h->dynindx != -1
- && (! info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))))
- {
- Elf_Internal_Rela outrel;
- boolean skip, relocate;
-
- /* When generating a shared object, these relocations
- are copied into the output file to be resolved at run
- time. */
+ case R_SH_DIR16:
+ case R_SH_DIR8:
+ case R_SH_DIR8U:
+ case R_SH_DIR8S:
+ case R_SH_DIR4U:
+ goto final_link_relocate;
- if (sreloc == NULL)
- {
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (input_bfd,
- elf_elfheader (input_bfd)->e_shstrndx,
- elf_section_data (input_section)->rel_hdr.sh_name));
- if (name == NULL)
- return false;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (input_bfd,
- input_section),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
- BFD_ASSERT (sreloc != NULL);
- }
+ case R_SH_DIR8UL:
+ case R_SH_DIR4UL:
+ if (relocation & 3)
+ {
+ ((*_bfd_error_handler)
+ (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
+ input_section->owner,
+ (unsigned long) rel->r_offset, howto->name,
+ (unsigned long) relocation));
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ goto final_link_relocate;
- skip = false;
+ case R_SH_DIR8UW:
+ case R_SH_DIR8SW:
+ case R_SH_DIR4UW:
+ if (relocation & 1)
+ {
+ ((*_bfd_error_handler)
+ (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
+ input_section->owner,
+ (unsigned long) rel->r_offset, howto->name,
+ (unsigned long) relocation));
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ goto final_link_relocate;
- if (elf_section_data (input_section)->stab_info == NULL)
- outrel.r_offset = rel->r_offset;
- else
+ case R_SH_PSHA:
+ if ((signed int)relocation < -32
+ || (signed int)relocation > 32)
+ {
+ ((*_bfd_error_handler)
+ (_("%B: 0x%lx: fatal: R_SH_PSHA relocation %d not in range -32..32"),
+ input_section->owner,
+ (unsigned long) rel->r_offset,
+ (unsigned long) relocation));
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ goto final_link_relocate;
+
+ case R_SH_PSHL:
+ if ((signed int)relocation < -16
+ || (signed int)relocation > 16)
+ {
+ ((*_bfd_error_handler)
+ (_("%B: 0x%lx: fatal: R_SH_PSHL relocation %d not in range -32..32"),
+ input_section->owner,
+ (unsigned long) rel->r_offset,
+ (unsigned long) relocation));
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ goto final_link_relocate;
+
+ case R_SH_DIR32:
+ case R_SH_REL32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_IMM_LOW16_PCREL:
+ case R_SH_IMM_MEDLOW16_PCREL:
+ case R_SH_IMM_MEDHI16_PCREL:
+ case R_SH_IMM_HI16_PCREL:
+#endif
+ if (info->shared
+ && (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
+ && r_symndx != STN_UNDEF
+ && (input_section->flags & SEC_ALLOC) != 0
+ && !is_vxworks_tls
+ && (r_type == R_SH_DIR32
+ || !SYMBOL_CALLS_LOCAL (info, h)))
+ {
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+ bfd_boolean skip, relocate;
+
+ /* When generating a shared object, these relocations
+ are copied into the output file to be resolved at run
+ time. */
+
+ if (sreloc == NULL)
{
- bfd_vma off;
-
- off = (_bfd_stab_section_offset
- (output_bfd, &elf_hash_table (info)->stab_info,
- input_section,
- &elf_section_data (input_section)->stab_info,
- rel->r_offset));
- if (off == (bfd_vma) -1)
- skip = true;
- outrel.r_offset = off;
+ sreloc = _bfd_elf_get_dynamic_reloc_section
+ (input_bfd, input_section, /*rela?*/ TRUE);
+ if (sreloc == NULL)
+ return FALSE;
}
+ skip = FALSE;
+ relocate = FALSE;
+
+ outrel.r_offset =
+ _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset);
+ if (outrel.r_offset == (bfd_vma) -1)
+ skip = TRUE;
+ else if (outrel.r_offset == (bfd_vma) -2)
+ skip = TRUE, relocate = TRUE;
outrel.r_offset += (input_section->output_section->vma
+ input_section->output_offset);
if (skip)
- {
- memset (&outrel, 0, sizeof outrel);
- relocate = false;
- }
+ memset (&outrel, 0, sizeof outrel);
else if (r_type == R_SH_REL32)
{
BFD_ASSERT (h != NULL && h->dynindx != -1);
- relocate = false;
outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
- outrel.r_addend = rel->r_addend;
+ outrel.r_addend
+ = (howto->partial_inplace
+ ? bfd_get_32 (input_bfd, contents + rel->r_offset)
+ : addend);
+ }
+#ifdef INCLUDE_SHMEDIA
+ else if (r_type == R_SH_IMM_LOW16_PCREL
+ || r_type == R_SH_IMM_MEDLOW16_PCREL
+ || r_type == R_SH_IMM_MEDHI16_PCREL
+ || r_type == R_SH_IMM_HI16_PCREL)
+ {
+ BFD_ASSERT (h != NULL && h->dynindx != -1);
+ outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
+ outrel.r_addend = addend;
+ }
+#endif
+ else if (fdpic_p
+ && (h == NULL
+ || ((info->symbolic || h->dynindx == -1)
+ && h->def_regular)))
+ {
+ int dynindx;
+
+ BFD_ASSERT (sec != NULL);
+ BFD_ASSERT (sec->output_section != NULL);
+ dynindx = elf_section_data (sec->output_section)->dynindx;
+ outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
+ outrel.r_addend = relocation;
+ outrel.r_addend
+ += (howto->partial_inplace
+ ? bfd_get_32 (input_bfd, contents + rel->r_offset)
+ : addend);
+ outrel.r_addend -= sec->output_section->vma;
}
else
{
become local. */
if (h == NULL
|| ((info->symbolic || h->dynindx == -1)
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) != 0))
+ && h->def_regular))
{
- relocate = true;
+ relocate = howto->partial_inplace;
outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
- outrel.r_addend = relocation + rel->r_addend;
}
else
{
BFD_ASSERT (h->dynindx != -1);
- relocate = false;
outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
- outrel.r_addend = relocation + rel->r_addend;
}
+ outrel.r_addend = relocation;
+ outrel.r_addend
+ += (howto->partial_inplace
+ ? bfd_get_32 (input_bfd, contents + rel->r_offset)
+ : addend);
}
- bfd_elf32_swap_reloca_out (output_bfd, &outrel,
- (((Elf32_External_Rela *)
- sreloc->contents)
- + sreloc->reloc_count));
- ++sreloc->reloc_count;
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+
+ check_segment[0] = check_segment[1] = -1;
/* If this reloc is against an external symbol, we do
not want to fiddle with the addend. Otherwise, we
if (! relocate)
continue;
}
- else if (r_type == R_SH_DIR32)
- addend = rel->r_addend;
+ else if (fdpic_p && !info->shared
+ && r_type == R_SH_DIR32
+ && (input_section->flags & SEC_ALLOC) != 0)
+ {
+ bfd_vma offset;
+
+ BFD_ASSERT (htab);
+
+ if (sh_elf_osec_readonly_p (output_bfd,
+ input_section->output_section))
+ {
+ (*_bfd_error_handler)
+ (_("%B(%A+0x%lx): cannot emit fixup to `%s' in read-only section"),
+ input_bfd,
+ input_section,
+ (long) rel->r_offset,
+ symname);
+ return FALSE;
+ }
+
+ offset = _bfd_elf_section_offset (output_bfd, info,
+ input_section, rel->r_offset);
+ if (offset != (bfd_vma)-1)
+ sh_elf_add_rofixup (output_bfd, htab->srofixup,
+ input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset);
+
+ check_segment[0] = check_segment[1] = -1;
+ }
+ goto final_link_relocate;
+
+ case R_SH_GOTPLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPLT_LOW16:
+ case R_SH_GOTPLT_MEDLOW16:
+ case R_SH_GOTPLT_MEDHI16:
+ case R_SH_GOTPLT_HI16:
+ case R_SH_GOTPLT10BY4:
+ case R_SH_GOTPLT10BY8:
+#endif
+ /* Relocation is to the entry for this symbol in the
+ procedure linkage table. */
+
+ if (h == NULL
+ || h->forced_local
+ || ! info->shared
+ || info->symbolic
+ || h->dynindx == -1
+ || h->plt.offset == (bfd_vma) -1
+ || h->got.offset != (bfd_vma) -1)
+ goto force_got;
+
+ /* Relocation is to the entry for this symbol in the global
+ offset table extension for the procedure linkage table. */
+
+ BFD_ASSERT (htab);
+ BFD_ASSERT (sgotplt != NULL);
+ relocation = (sgotplt->output_offset
+ + (get_plt_index (htab->plt_info, h->plt.offset)
+ + 3) * 4);
+
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
+
goto final_link_relocate;
+ force_got:
case R_SH_GOT32:
+ case R_SH_GOT20:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOT_LOW16:
+ case R_SH_GOT_MEDLOW16:
+ case R_SH_GOT_MEDHI16:
+ case R_SH_GOT_HI16:
+ case R_SH_GOT10BY4:
+ case R_SH_GOT10BY8:
+#endif
/* Relocation is to the entry for this symbol in the global
offset table. */
- if (sgot == NULL)
- {
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
+
+ BFD_ASSERT (htab);
+ BFD_ASSERT (sgot != NULL);
+ check_segment[0] = check_segment[1] = -1;
if (h != NULL)
{
- bfd_vma off;
+ bfd_boolean dyn;
off = h->got.offset;
+#ifdef INCLUDE_SHMEDIA
+ if (seen_stt_datalabel)
+ {
+ struct elf_sh_link_hash_entry *hsh;
+
+ hsh = (struct elf_sh_link_hash_entry *)h;
+ off = hsh->datalabel_got.offset;
+ }
+#endif
BFD_ASSERT (off != (bfd_vma) -1);
- if (! elf_hash_table (info)->dynamic_sections_created
+ dyn = htab->root.dynamic_sections_created;
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|| (info->shared
- && (info->symbolic || h->dynindx == -1
- || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
- || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ && SYMBOL_REFERENCES_LOCAL (info, h))
+ || (ELF_ST_VISIBILITY (h->other)
+ && h->root.type == bfd_link_hash_undefweak))
{
/* This is actually a static link, or it is a
-Bsymbolic link and the symbol is defined
{
bfd_put_32 (output_bfd, relocation,
sgot->contents + off);
- h->got.offset |= 1;
+#ifdef INCLUDE_SHMEDIA
+ if (seen_stt_datalabel)
+ {
+ struct elf_sh_link_hash_entry *hsh;
+
+ hsh = (struct elf_sh_link_hash_entry *)h;
+ hsh->datalabel_got.offset |= 1;
+ }
+ else
+#endif
+ h->got.offset |= 1;
+
+ /* If we initialize the GOT entry here with a valid
+ symbol address, also add a fixup. */
+ if (fdpic_p && !info->shared
+ && sh_elf_hash_entry (h)->got_type == GOT_NORMAL
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
+ sh_elf_add_rofixup (output_bfd, htab->srofixup,
+ sgot->output_section->vma
+ + sgot->output_offset
+ + off);
}
}
- relocation = sgot->output_offset + off;
+ relocation = sh_elf_got_offset (htab) + off;
}
else
{
- bfd_vma off;
+#ifdef INCLUDE_SHMEDIA
+ if (rel->r_addend)
+ {
+ BFD_ASSERT (local_got_offsets != NULL
+ && (local_got_offsets[symtab_hdr->sh_info
+ + r_symndx]
+ != (bfd_vma) -1));
+ off = local_got_offsets[symtab_hdr->sh_info
+ + r_symndx];
+ }
+ else
+ {
+#endif
BFD_ASSERT (local_got_offsets != NULL
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
off = local_got_offsets[r_symndx];
+#ifdef INCLUDE_SHMEDIA
+ }
+#endif
/* The offset must always be a multiple of 4. We use
the least significant bit to record whether we have
if (info->shared)
{
- asection *srelgot;
Elf_Internal_Rela outrel;
+ bfd_byte *loc;
- srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
- BFD_ASSERT (srelgot != NULL);
+ if (srelgot == NULL)
+ {
+ srelgot = bfd_get_linker_section (dynobj,
+ ".rela.got");
+ BFD_ASSERT (srelgot != NULL);
+ }
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ off);
- outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
- outrel.r_addend = relocation;
- bfd_elf32_swap_reloca_out (output_bfd, &outrel,
- (((Elf32_External_Rela *)
- srelgot->contents)
- + srelgot->reloc_count));
- ++srelgot->reloc_count;
+ if (fdpic_p)
+ {
+ int dynindx
+ = elf_section_data (sec->output_section)->dynindx;
+ outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
+ outrel.r_addend = relocation;
+ outrel.r_addend -= sec->output_section->vma;
+ }
+ else
+ {
+ outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
+ outrel.r_addend = relocation;
+ }
+ loc = srelgot->contents;
+ loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
}
-
- local_got_offsets[r_symndx] |= 1;
+ else if (fdpic_p
+ && (sh_elf_local_got_type (input_bfd) [r_symndx]
+ == GOT_NORMAL))
+ sh_elf_add_rofixup (output_bfd, htab->srofixup,
+ sgot->output_section->vma
+ + sgot->output_offset
+ + off);
+
+#ifdef INCLUDE_SHMEDIA
+ if (rel->r_addend)
+ local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
+ else
+#endif
+ local_got_offsets[r_symndx] |= 1;
}
- relocation = sgot->output_offset + off;
+ relocation = sh_elf_got_offset (htab) + off;
}
- goto final_link_relocate;
-
- case R_SH_GOTOFF:
- /* Relocation is relative to the start of the global offset
- table. */
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
- if (sgot == NULL)
+ if (r_type == R_SH_GOT20)
{
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
+ r = install_movi20_field (output_bfd, relocation + addend,
+ input_bfd, input_section, contents,
+ rel->r_offset);
+ break;
}
+ else
+ goto final_link_relocate;
- /* Note that sgot->output_offset is not involved in this
- calculation. We always want the start of .got. If we
- defined _GLOBAL_OFFSET_TABLE in a different way, as is
- permitted by the ABI, we might have to change this
- calculation. */
- relocation -= sgot->output_section->vma;
-
- goto final_link_relocate;
+ case R_SH_GOTOFF:
+ case R_SH_GOTOFF20:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTOFF_LOW16:
+ case R_SH_GOTOFF_MEDLOW16:
+ case R_SH_GOTOFF_MEDHI16:
+ case R_SH_GOTOFF_HI16:
+#endif
+ /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
+ we place at the start of the .got.plt section. This is the same
+ as the start of the output .got section, unless there are function
+ descriptors in front of it. */
+ BFD_ASSERT (htab);
+ BFD_ASSERT (sgotplt != NULL);
+ check_segment[0] = got_segment;
+ relocation -= sgotplt->output_section->vma + sgotplt->output_offset
+ + htab->root.hgot->root.u.def.value;
+
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
+
+ addend = rel->r_addend;
+
+ if (r_type == R_SH_GOTOFF20)
+ {
+ r = install_movi20_field (output_bfd, relocation + addend,
+ input_bfd, input_section, contents,
+ rel->r_offset);
+ break;
+ }
+ else
+ goto final_link_relocate;
case R_SH_GOTPC:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPC_LOW16:
+ case R_SH_GOTPC_MEDLOW16:
+ case R_SH_GOTPC_MEDHI16:
+ case R_SH_GOTPC_HI16:
+#endif
/* Use global offset table as symbol value. */
- if (sgot == NULL)
- {
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
+ BFD_ASSERT (sgotplt != NULL);
+ relocation = sgotplt->output_section->vma + sgotplt->output_offset;
- relocation = sgot->output_section->vma;
+#ifdef GOT_BIAS
+ relocation += GOT_BIAS;
+#endif
+
+ addend = rel->r_addend;
goto final_link_relocate;
case R_SH_PLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_PLT_LOW16:
+ case R_SH_PLT_MEDLOW16:
+ case R_SH_PLT_MEDHI16:
+ case R_SH_PLT_HI16:
+#endif
/* Relocation is to the entry for this symbol in the
procedure linkage table. */
if (h == NULL)
goto final_link_relocate;
- if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
- || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
+ /* We don't want to warn on calls to undefined weak symbols,
+ as calls to them must be protected by non-NULL tests
+ anyway, and unprotected calls would invoke undefined
+ behavior. */
+ if (h->root.type == bfd_link_hash_undefweak)
+ check_segment[0] = check_segment[1] = -1;
+
+ if (h->forced_local)
goto final_link_relocate;
if (h->plt.offset == (bfd_vma) -1)
goto final_link_relocate;
}
- if (splt == NULL)
- {
- splt = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (splt != NULL);
- }
-
+ BFD_ASSERT (splt != NULL);
+ check_segment[1] = plt_segment;
relocation = (splt->output_section->vma
+ splt->output_offset
+ h->plt.offset);
+#ifdef INCLUDE_SHMEDIA
+ relocation++;
+#endif
+
+ addend = rel->r_addend;
+
goto final_link_relocate;
- case R_SH_LOOP_START:
+ /* Relocation is to the canonical function descriptor for this
+ symbol, possibly via the GOT. Initialize the GOT
+ entry and function descriptor if necessary. */
+ case R_SH_GOTFUNCDESC:
+ case R_SH_GOTFUNCDESC20:
+ case R_SH_FUNCDESC:
{
- static bfd_vma start, end;
+ int dynindx = -1;
+ asection *reloc_section;
+ bfd_vma reloc_offset;
+ int reloc_type = R_SH_FUNCDESC;
- start = (relocation + rel->r_addend
- - (sec->output_section->vma + sec->output_offset));
- r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
- rel->r_offset, sec, start, end);
- break;
+ BFD_ASSERT (htab);
- case R_SH_LOOP_END:
- end = (relocation + rel->r_addend
- - (sec->output_section->vma + sec->output_offset));
- r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
- rel->r_offset, sec, start, end);
- break;
- }
- }
+ check_segment[0] = check_segment[1] = -1;
- if (r != bfd_reloc_ok)
- {
- switch (r)
- {
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
+ /* FIXME: See what FRV does for global symbols in the
+ executable, with --export-dynamic. Do they need ld.so
+ to allocate official descriptors? See what this code
+ does. */
+
+ relocation = 0;
+ addend = 0;
+
+ if (r_type == R_SH_FUNCDESC)
{
- const char *name;
+ reloc_section = input_section;
+ reloc_offset = rel->r_offset;
+ }
+ else
+ {
+ reloc_section = sgot;
if (h != NULL)
- name = h->root.root.string;
+ reloc_offset = h->got.offset;
else
{
- name = (bfd_elf_string_from_elf_section
- (input_bfd, symtab_hdr->sh_link, sym->st_name));
- if (name == NULL)
- return false;
- if (*name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ BFD_ASSERT (local_got_offsets != NULL);
+ reloc_offset = local_got_offsets[r_symndx];
+ }
+ BFD_ASSERT (reloc_offset != MINUS_ONE);
+
+ if (reloc_offset & 1)
+ {
+ reloc_offset &= ~1;
+ goto funcdesc_done_got;
}
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return false;
}
- break;
- }
- }
- }
- return true;
-}
+ if (h && h->root.type == bfd_link_hash_undefweak
+ && (SYMBOL_CALLS_LOCAL (info, h)
+ || !htab->root.dynamic_sections_created))
+ /* Undefined weak symbol which will not be dynamically
+ resolved later; leave it at zero. */
+ goto funcdesc_leave_zero;
+ else if (SYMBOL_CALLS_LOCAL (info, h)
+ && ! SYMBOL_FUNCDESC_LOCAL (info, h))
+ {
+ /* If the symbol needs a non-local function descriptor
+ but binds locally (i.e., its visibility is
+ protected), emit a dynamic relocation decayed to
+ section+offset. This is an optimization; the dynamic
+ linker would resolve our function descriptor request
+ to our copy of the function anyway. */
+ dynindx = elf_section_data (h->root.u.def.section
+ ->output_section)->dynindx;
+ relocation += h->root.u.def.section->output_offset
+ + h->root.u.def.value;
+ }
+ else if (! SYMBOL_FUNCDESC_LOCAL (info, h))
+ {
+ /* If the symbol is dynamic and there will be dynamic
+ symbol resolution because we are or are linked with a
+ shared library, emit a FUNCDESC relocation such that
+ the dynamic linker will allocate the function
+ descriptor. */
+ BFD_ASSERT (h->dynindx != -1);
+ dynindx = h->dynindx;
+ }
+ else
+ {
+ bfd_vma offset;
-/* This is a version of bfd_generic_get_relocated_section_contents
- which uses sh_elf_relocate_section. */
+ /* Otherwise, we know we have a private function
+ descriptor, so reference it directly. */
+ reloc_type = R_SH_DIR32;
+ dynindx = elf_section_data (htab->sfuncdesc
+ ->output_section)->dynindx;
-static bfd_byte *
-sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
- data, relocateable, symbols)
- bfd *output_bfd;
- struct bfd_link_info *link_info;
- struct bfd_link_order *link_order;
- bfd_byte *data;
- boolean relocateable;
- asymbol **symbols;
-{
- Elf_Internal_Shdr *symtab_hdr;
- asection *input_section = link_order->u.indirect.section;
- bfd *input_bfd = input_section->owner;
- asection **sections = NULL;
- Elf_Internal_Rela *internal_relocs = NULL;
- Elf32_External_Sym *external_syms = NULL;
- Elf_Internal_Sym *internal_syms = NULL;
+ if (h)
+ {
+ offset = sh_elf_hash_entry (h)->funcdesc.offset;
+ BFD_ASSERT (offset != MINUS_ONE);
+ if ((offset & 1) == 0)
+ {
+ if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
+ offset, NULL, 0))
+ return FALSE;
+ sh_elf_hash_entry (h)->funcdesc.offset |= 1;
+ }
+ }
+ else
+ {
+ union gotref *local_funcdesc;
+
+ local_funcdesc = sh_elf_local_funcdesc (input_bfd);
+ offset = local_funcdesc[r_symndx].offset;
+ BFD_ASSERT (offset != MINUS_ONE);
+ if ((offset & 1) == 0)
+ {
+ if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
+ offset, sec,
+ sym->st_value))
+ return FALSE;
+ local_funcdesc[r_symndx].offset |= 1;
+ }
+ }
- /* We only need to handle the case of relaxing, or of having a
- particular set of section contents, specially. */
- if (relocateable
- || elf_section_data (input_section)->this_hdr.contents == NULL)
- return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
- link_order, data,
- relocateable,
- symbols);
+ relocation = htab->sfuncdesc->output_offset + (offset & ~1);
+ }
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (!info->shared && SYMBOL_FUNCDESC_LOCAL (info, h))
+ {
+ bfd_vma offset;
- memcpy (data, elf_section_data (input_section)->this_hdr.contents,
- (size_t) input_section->_raw_size);
+ if (sh_elf_osec_readonly_p (output_bfd,
+ reloc_section->output_section))
+ {
+ (*_bfd_error_handler)
+ (_("%B(%A+0x%lx): cannot emit fixup to `%s' in read-only section"),
+ input_bfd,
+ input_section,
+ (long) rel->r_offset,
+ symname);
+ return FALSE;
+ }
- if ((input_section->flags & SEC_RELOC) != 0
- && input_section->reloc_count > 0)
- {
- Elf_Internal_Sym *isymp;
- asection **secpp;
- Elf32_External_Sym *esym, *esymend;
- bfd_size_type size;
+ offset = _bfd_elf_section_offset (output_bfd, info,
+ reloc_section, reloc_offset);
- if (symtab_hdr->contents != NULL)
- external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
- else
- {
- size = symtab_hdr->sh_info;
- size *= sizeof (Elf32_External_Sym);
- external_syms = (Elf32_External_Sym *) bfd_malloc (size);
- if (external_syms == NULL && size != 0)
- goto error_return;
- if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || bfd_bread (external_syms, size, input_bfd) != size)
- goto error_return;
- }
+ if (offset != (bfd_vma)-1)
+ sh_elf_add_rofixup (output_bfd, htab->srofixup,
+ offset
+ + reloc_section->output_section->vma
+ + reloc_section->output_offset);
+ }
+ else if ((reloc_section->output_section->flags
+ & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
+ {
+ bfd_vma offset;
- internal_relocs = (_bfd_elf32_link_read_relocs
- (input_bfd, input_section, (PTR) NULL,
- (Elf_Internal_Rela *) NULL, false));
- if (internal_relocs == NULL)
- goto error_return;
+ if (sh_elf_osec_readonly_p (output_bfd,
+ reloc_section->output_section))
+ {
+ info->callbacks->warning
+ (info,
+ _("cannot emit dynamic relocations in read-only section"),
+ symname, input_bfd, reloc_section, reloc_offset);
+ return FALSE;
+ }
- size = symtab_hdr->sh_info;
- size *= sizeof (Elf_Internal_Sym);
- internal_syms = (Elf_Internal_Sym *) bfd_malloc (size);
- if (internal_syms == NULL && symtab_hdr->sh_info > 0)
- goto error_return;
+ if (srelgot == NULL)
+ {
+ srelgot = bfd_get_linker_section (dynobj, ".rela.got");
+ BFD_ASSERT (srelgot != NULL);
+ }
- size = symtab_hdr->sh_info;
- size *= sizeof (asection *);
- sections = (asection **) bfd_malloc (size);
- if (sections == NULL && symtab_hdr->sh_info > 0)
- goto error_return;
+ offset = _bfd_elf_section_offset (output_bfd, info,
+ reloc_section, reloc_offset);
- isymp = internal_syms;
- secpp = sections;
- esym = external_syms;
- esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; ++esym, ++isymp, ++secpp)
- {
- asection *isec;
+ if (offset != (bfd_vma)-1)
+ sh_elf_add_dyn_reloc (output_bfd, srelgot,
+ offset
+ + reloc_section->output_section->vma
+ + reloc_section->output_offset,
+ reloc_type, dynindx, relocation);
- bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
+ if (r_type == R_SH_FUNCDESC)
+ {
+ r = bfd_reloc_ok;
+ break;
+ }
+ else
+ {
+ relocation = 0;
+ goto funcdesc_leave_zero;
+ }
+ }
- if (isymp->st_shndx == SHN_UNDEF)
- isec = bfd_und_section_ptr;
- else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
- isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
- else if (isymp->st_shndx == SHN_ABS)
- isec = bfd_abs_section_ptr;
- else if (isymp->st_shndx == SHN_COMMON)
- isec = bfd_com_section_ptr;
- else
- {
- /* Who knows? */
- isec = NULL;
- }
+ if (SYMBOL_FUNCDESC_LOCAL (info, h))
+ relocation += htab->sfuncdesc->output_section->vma;
+ funcdesc_leave_zero:
+ if (r_type != R_SH_FUNCDESC)
+ {
+ bfd_put_32 (output_bfd, relocation,
+ reloc_section->contents + reloc_offset);
+ if (h != NULL)
+ h->got.offset |= 1;
+ else
+ local_got_offsets[r_symndx] |= 1;
- *secpp = isec;
- }
+ funcdesc_done_got:
- if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
- input_section, data, internal_relocs,
- internal_syms, sections))
- goto error_return;
+ relocation = sh_elf_got_offset (htab) + reloc_offset;
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
+ }
+ if (r_type == R_SH_GOTFUNCDESC20)
+ {
+ r = install_movi20_field (output_bfd, relocation + addend,
+ input_bfd, input_section, contents,
+ rel->r_offset);
+ break;
+ }
+ else
+ goto final_link_relocate;
+ }
+ break;
- if (sections != NULL)
- free (sections);
- sections = NULL;
- if (internal_syms != NULL)
- free (internal_syms);
- internal_syms = NULL;
- if (external_syms != NULL && symtab_hdr->contents == NULL)
- free (external_syms);
- external_syms = NULL;
- if (internal_relocs != elf_section_data (input_section)->relocs)
- free (internal_relocs);
- internal_relocs = NULL;
- }
+ case R_SH_GOTOFFFUNCDESC:
+ case R_SH_GOTOFFFUNCDESC20:
+ /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
+ executable and --export-dynamic. If such symbols get
+ ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
+ for them. */
+ BFD_ASSERT (htab);
- return data;
+ check_segment[0] = check_segment[1] = -1;
+ relocation = 0;
+ addend = rel->r_addend;
- error_return:
- if (internal_relocs != NULL
- && internal_relocs != elf_section_data (input_section)->relocs)
- free (internal_relocs);
- if (external_syms != NULL && symtab_hdr->contents == NULL)
- free (external_syms);
- if (internal_syms != NULL)
- free (internal_syms);
- if (sections != NULL)
- free (sections);
- return NULL;
-}
+ if (h && (h->root.type == bfd_link_hash_undefweak
+ || !SYMBOL_FUNCDESC_LOCAL (info, h)))
+ {
+ _bfd_error_handler
+ (_("%B(%A+0x%lx): %s relocation against external symbol \"%s\""),
+ input_bfd, input_section, (long) rel->r_offset, howto->name,
+ h->root.root.string);
+ return FALSE;
+ }
+ else
+ {
+ bfd_vma offset;
-static asection *
-sh_elf_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 (ELF32_R_TYPE (rel->r_info))
- {
- case R_SH_GNU_VTINHERIT:
- case R_SH_GNU_VTENTRY:
- break;
+ /* Otherwise, we know we have a private function
+ descriptor, so reference it directly. */
+ if (h)
+ {
+ offset = sh_elf_hash_entry (h)->funcdesc.offset;
+ BFD_ASSERT (offset != MINUS_ONE);
+ if ((offset & 1) == 0)
+ {
+ if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
+ offset, NULL, 0))
+ return FALSE;
+ sh_elf_hash_entry (h)->funcdesc.offset |= 1;
+ }
+ }
+ else
+ {
+ union gotref *local_funcdesc;
- default:
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
+ local_funcdesc = sh_elf_local_funcdesc (input_bfd);
+ offset = local_funcdesc[r_symndx].offset;
+ BFD_ASSERT (offset != MINUS_ONE);
+ if ((offset & 1) == 0)
+ {
+ if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
+ offset, sec,
+ sym->st_value))
+ return FALSE;
+ local_funcdesc[r_symndx].offset |= 1;
+ }
+ }
+
+ relocation = htab->sfuncdesc->output_offset + (offset & ~1);
+ }
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
+ relocation -= (htab->root.hgot->root.u.def.value
+ + sgotplt->output_offset);
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
- default:
+ if (r_type == R_SH_GOTOFFFUNCDESC20)
+ {
+ r = install_movi20_field (output_bfd, relocation + addend,
+ input_bfd, input_section, contents,
+ rel->r_offset);
break;
}
- }
- }
- else
- {
- if (!(elf_bad_symtab (abfd)
- && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
- && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
- && sym->st_shndx != SHN_COMMON))
- return bfd_section_from_elf_index (abfd, sym->st_shndx);
- }
+ else
+ goto final_link_relocate;
+
+ case R_SH_LOOP_START:
+ {
+ static bfd_vma start, end;
+
+ start = (relocation + rel->r_addend
+ - (sec->output_section->vma + sec->output_offset));
+ r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
+ rel->r_offset, sec, start, end);
+ break;
+
+ case R_SH_LOOP_END:
+ end = (relocation + rel->r_addend
+ - (sec->output_section->vma + sec->output_offset));
+ r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
+ rel->r_offset, sec, start, end);
+ break;
+ }
+
+ case R_SH_TLS_GD_32:
+ case R_SH_TLS_IE_32:
+ BFD_ASSERT (htab);
+ check_segment[0] = check_segment[1] = -1;
+ r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
+ got_type = GOT_UNKNOWN;
+ if (h == NULL && local_got_offsets)
+ got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
+ else if (h != NULL)
+ {
+ got_type = sh_elf_hash_entry (h)->got_type;
+ if (! info->shared
+ && (h->dynindx == -1
+ || h->def_regular))
+ r_type = R_SH_TLS_LE_32;
+ }
+
+ if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
+ r_type = R_SH_TLS_IE_32;
+
+ if (r_type == R_SH_TLS_LE_32)
+ {
+ bfd_vma offset;
+ unsigned short insn;
+
+ if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
+ {
+ /* GD->LE transition:
+ mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
+ jsr @r1; add r12,r4; bra 3f; nop; .align 2;
+ 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
+ We change it into:
+ mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
+ nop; nop; ...
+ 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
+
+ offset = rel->r_offset;
+ BFD_ASSERT (offset >= 16);
+ /* Size of GD instructions is 16 or 18. */
+ offset -= 16;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ if ((insn & 0xff00) == 0xc700)
+ {
+ BFD_ASSERT (offset >= 2);
+ offset -= 2;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ }
+
+ BFD_ASSERT ((insn & 0xff00) == 0xd400);
+ insn = bfd_get_16 (input_bfd, contents + offset + 2);
+ BFD_ASSERT ((insn & 0xff00) == 0xc700);
+ insn = bfd_get_16 (input_bfd, contents + offset + 4);
+ BFD_ASSERT ((insn & 0xff00) == 0xd100);
+ insn = bfd_get_16 (input_bfd, contents + offset + 6);
+ BFD_ASSERT (insn == 0x310c);
+ insn = bfd_get_16 (input_bfd, contents + offset + 8);
+ BFD_ASSERT (insn == 0x410b);
+ insn = bfd_get_16 (input_bfd, contents + offset + 10);
+ BFD_ASSERT (insn == 0x34cc);
+
+ bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
+ bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
+ }
+ else
+ {
+ int target;
+
+ /* IE->LE transition:
+ mov.l 1f,r0; stc gbr,rN; mov.l @(r0,r12),rM;
+ bra 2f; add ...; .align 2; 1: x@GOTTPOFF; 2:
+ We change it into:
+ mov.l .Ln,rM; stc gbr,rN; nop; ...;
+ 1: x@TPOFF; 2:. */
+
+ offset = rel->r_offset;
+ BFD_ASSERT (offset >= 16);
+ /* Size of IE instructions is 10 or 12. */
+ offset -= 10;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ if ((insn & 0xf0ff) == 0x0012)
+ {
+ BFD_ASSERT (offset >= 2);
+ offset -= 2;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ }
+
+ BFD_ASSERT ((insn & 0xff00) == 0xd000);
+ target = insn & 0x00ff;
+ insn = bfd_get_16 (input_bfd, contents + offset + 2);
+ BFD_ASSERT ((insn & 0xf0ff) == 0x0012);
+ insn = bfd_get_16 (input_bfd, contents + offset + 4);
+ BFD_ASSERT ((insn & 0xf0ff) == 0x00ce);
+ insn = 0xd000 | (insn & 0x0f00) | target;
+ bfd_put_16 (output_bfd, insn, contents + offset + 0);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
+ }
+
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ contents + rel->r_offset);
+ continue;
+ }
+
+ if (sgot == NULL || sgotplt == NULL)
+ abort ();
+
+ if (h != NULL)
+ off = h->got.offset;
+ else
+ {
+ if (local_got_offsets == NULL)
+ abort ();
+
+ off = local_got_offsets[r_symndx];
+ }
+
+ /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
+ if (r_type == R_SH_TLS_IE_32
+ && ! htab->root.dynamic_sections_created)
+ {
+ off &= ~1;
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ sgot->contents + off);
+ bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
+ contents + rel->r_offset);
+ continue;
+ }
+
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+ int dr_type, indx;
+
+ if (srelgot == NULL)
+ {
+ srelgot = bfd_get_linker_section (dynobj, ".rela.got");
+ BFD_ASSERT (srelgot != NULL);
+ }
+
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset + off);
+
+ if (h == NULL || h->dynindx == -1)
+ indx = 0;
+ else
+ indx = h->dynindx;
+
+ dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
+ R_SH_TLS_TPOFF32);
+ if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
+ outrel.r_addend = relocation - dtpoff_base (info);
+ else
+ outrel.r_addend = 0;
+ outrel.r_info = ELF32_R_INFO (indx, dr_type);
+ loc = srelgot->contents;
+ loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+
+ if (r_type == R_SH_TLS_GD_32)
+ {
+ if (indx == 0)
+ {
+ bfd_put_32 (output_bfd,
+ relocation - dtpoff_base (info),
+ sgot->contents + off + 4);
+ }
+ else
+ {
+ outrel.r_info = ELF32_R_INFO (indx,
+ R_SH_TLS_DTPOFF32);
+ outrel.r_offset += 4;
+ outrel.r_addend = 0;
+ srelgot->reloc_count++;
+ loc += sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ }
+
+ if (h != NULL)
+ h->got.offset |= 1;
+ else
+ local_got_offsets[r_symndx] |= 1;
+ }
+
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ if (r_type == (int) ELF32_R_TYPE (rel->r_info))
+ relocation = sh_elf_got_offset (htab) + off;
+ else
+ {
+ bfd_vma offset;
+ unsigned short insn;
+
+ /* GD->IE transition:
+ mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
+ jsr @r1; add r12,r4; bra 3f; nop; .align 2;
+ 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
+ We change it into:
+ mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
+ nop; nop; bra 3f; nop; .align 2;
+ 1: .long x@TPOFF; 2:...; 3:. */
+
+ offset = rel->r_offset;
+ BFD_ASSERT (offset >= 16);
+ /* Size of GD instructions is 16 or 18. */
+ offset -= 16;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ if ((insn & 0xff00) == 0xc700)
+ {
+ BFD_ASSERT (offset >= 2);
+ offset -= 2;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ }
+
+ BFD_ASSERT ((insn & 0xff00) == 0xd400);
+
+ /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
+ bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
+
+ insn = bfd_get_16 (input_bfd, contents + offset + 2);
+ BFD_ASSERT ((insn & 0xff00) == 0xc700);
+ insn = bfd_get_16 (input_bfd, contents + offset + 4);
+ BFD_ASSERT ((insn & 0xff00) == 0xd100);
+ insn = bfd_get_16 (input_bfd, contents + offset + 6);
+ BFD_ASSERT (insn == 0x310c);
+ insn = bfd_get_16 (input_bfd, contents + offset + 8);
+ BFD_ASSERT (insn == 0x410b);
+ insn = bfd_get_16 (input_bfd, contents + offset + 10);
+ BFD_ASSERT (insn == 0x34cc);
+
+ bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
+ bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
+ bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
+
+ bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
+ contents + rel->r_offset);
+
+ continue;
+ }
+
+ addend = rel->r_addend;
+
+ goto final_link_relocate;
+
+ case R_SH_TLS_LD_32:
+ BFD_ASSERT (htab);
+ check_segment[0] = check_segment[1] = -1;
+ if (! info->shared)
+ {
+ bfd_vma offset;
+ unsigned short insn;
+
+ /* LD->LE transition:
+ mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
+ jsr @r1; add r12,r4; bra 3f; nop; .align 2;
+ 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
+ We change it into:
+ stc gbr,r0; nop; nop; nop;
+ nop; nop; bra 3f; ...; 3:. */
+
+ offset = rel->r_offset;
+ BFD_ASSERT (offset >= 16);
+ /* Size of LD instructions is 16 or 18. */
+ offset -= 16;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ if ((insn & 0xff00) == 0xc700)
+ {
+ BFD_ASSERT (offset >= 2);
+ offset -= 2;
+ insn = bfd_get_16 (input_bfd, contents + offset + 0);
+ }
+
+ BFD_ASSERT ((insn & 0xff00) == 0xd400);
+ insn = bfd_get_16 (input_bfd, contents + offset + 2);
+ BFD_ASSERT ((insn & 0xff00) == 0xc700);
+ insn = bfd_get_16 (input_bfd, contents + offset + 4);
+ BFD_ASSERT ((insn & 0xff00) == 0xd100);
+ insn = bfd_get_16 (input_bfd, contents + offset + 6);
+ BFD_ASSERT (insn == 0x310c);
+ insn = bfd_get_16 (input_bfd, contents + offset + 8);
+ BFD_ASSERT (insn == 0x410b);
+ insn = bfd_get_16 (input_bfd, contents + offset + 10);
+ BFD_ASSERT (insn == 0x34cc);
+
+ bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
+ bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
+
+ continue;
+ }
+
+ if (sgot == NULL || sgotplt == NULL)
+ abort ();
+
+ off = htab->tls_ldm_got.offset;
+ if (off & 1)
+ off &= ~1;
+ else
+ {
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+
+ srelgot = htab->srelgot;
+ if (srelgot == NULL)
+ abort ();
+
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset + off);
+ outrel.r_addend = 0;
+ outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
+ loc = srelgot->contents;
+ loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ htab->tls_ldm_got.offset |= 1;
+ }
+
+ relocation = sh_elf_got_offset (htab) + off;
+ addend = rel->r_addend;
+
+ goto final_link_relocate;
+
+ case R_SH_TLS_LDO_32:
+ check_segment[0] = check_segment[1] = -1;
+ if (! info->shared)
+ relocation = tpoff (info, relocation);
+ else
+ relocation -= dtpoff_base (info);
+
+ addend = rel->r_addend;
+ goto final_link_relocate;
+
+ case R_SH_TLS_LE_32:
+ {
+ int indx;
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+
+ check_segment[0] = check_segment[1] = -1;
+
+ if (! info->shared || info->pie)
+ {
+ relocation = tpoff (info, relocation);
+ addend = rel->r_addend;
+ goto final_link_relocate;
+ }
+
+ if (sreloc == NULL)
+ {
+ sreloc = _bfd_elf_get_dynamic_reloc_section
+ (input_bfd, input_section, /*rela?*/ TRUE);
+ if (sreloc == NULL)
+ return FALSE;
+ }
+
+ if (h == NULL || h->dynindx == -1)
+ indx = 0;
+ else
+ indx = h->dynindx;
+
+ outrel.r_offset = (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset);
+ outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
+ if (indx == 0)
+ outrel.r_addend = relocation - dtpoff_base (info);
+ else
+ outrel.r_addend = 0;
+
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ continue;
+ }
+ }
+
+ relocation_done:
+ if (fdpic_p && check_segment[0] != (unsigned) -1
+ && check_segment[0] != check_segment[1])
+ {
+ /* We don't want duplicate errors for undefined symbols. */
+ if (!h || h->root.type != bfd_link_hash_undefined)
+ {
+ if (info->shared)
+ {
+ info->callbacks->einfo
+ (_("%X%C: relocation to \"%s\" references a different segment\n"),
+ input_bfd, input_section, rel->r_offset, symname);
+ return FALSE;
+ }
+ else
+ info->callbacks->einfo
+ (_("%C: warning: relocation to \"%s\" references a different segment\n"),
+ input_bfd, input_section, rel->r_offset, symname);
+ }
+
+ elf_elfheader (output_bfd)->e_flags &= ~EF_SH_PIC;
+ }
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ case bfd_reloc_overflow:
+ {
+ const char *name;
+
+ if (h != NULL)
+ name = NULL;
+ else
+ {
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name));
+ if (name == NULL)
+ return FALSE;
+ if (*name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ }
+ break;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+/* This is a version of bfd_generic_get_relocated_section_contents
+ which uses sh_elf_relocate_section. */
+
+static bfd_byte *
+sh_elf_get_relocated_section_contents (bfd *output_bfd,
+ struct bfd_link_info *link_info,
+ struct bfd_link_order *link_order,
+ bfd_byte *data,
+ bfd_boolean relocatable,
+ asymbol **symbols)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *input_section = link_order->u.indirect.section;
+ bfd *input_bfd = input_section->owner;
+ asection **sections = NULL;
+ Elf_Internal_Rela *internal_relocs = NULL;
+ Elf_Internal_Sym *isymbuf = NULL;
+
+ /* We only need to handle the case of relaxing, or of having a
+ particular set of section contents, specially. */
+ if (relocatable
+ || elf_section_data (input_section)->this_hdr.contents == NULL)
+ return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
+ link_order, data,
+ relocatable,
+ symbols);
+
+ symtab_hdr = &elf_symtab_hdr (input_bfd);
+
+ memcpy (data, elf_section_data (input_section)->this_hdr.contents,
+ (size_t) input_section->size);
+
+ if ((input_section->flags & SEC_RELOC) != 0
+ && input_section->reloc_count > 0)
+ {
+ asection **secpp;
+ Elf_Internal_Sym *isym, *isymend;
+ bfd_size_type amt;
+
+ internal_relocs = (_bfd_elf_link_read_relocs
+ (input_bfd, input_section, NULL,
+ (Elf_Internal_Rela *) NULL, FALSE));
+ if (internal_relocs == NULL)
+ goto error_return;
+
+ if (symtab_hdr->sh_info != 0)
+ {
+ isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
+ if (isymbuf == NULL)
+ isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
+ symtab_hdr->sh_info, 0,
+ NULL, NULL, NULL);
+ if (isymbuf == NULL)
+ goto error_return;
+ }
+
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (asection *);
+ sections = (asection **) bfd_malloc (amt);
+ if (sections == NULL && amt != 0)
+ goto error_return;
+
+ isymend = isymbuf + symtab_hdr->sh_info;
+ for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
+ {
+ asection *isec;
+
+ if (isym->st_shndx == SHN_UNDEF)
+ isec = bfd_und_section_ptr;
+ else if (isym->st_shndx == SHN_ABS)
+ isec = bfd_abs_section_ptr;
+ else if (isym->st_shndx == SHN_COMMON)
+ isec = bfd_com_section_ptr;
+ else
+ isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
+
+ *secpp = isec;
+ }
+
+ if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
+ input_section, data, internal_relocs,
+ isymbuf, sections))
+ goto error_return;
+
+ if (sections != NULL)
+ free (sections);
+ if (isymbuf != NULL
+ && symtab_hdr->contents != (unsigned char *) isymbuf)
+ free (isymbuf);
+ if (elf_section_data (input_section)->relocs != internal_relocs)
+ free (internal_relocs);
+ }
+
+ return data;
+
+ error_return:
+ if (sections != NULL)
+ free (sections);
+ if (isymbuf != NULL
+ && symtab_hdr->contents != (unsigned char *) isymbuf)
+ free (isymbuf);
+ if (internal_relocs != NULL
+ && elf_section_data (input_section)->relocs != internal_relocs)
+ free (internal_relocs);
return NULL;
}
+/* Return the base VMA address which should be subtracted from real addresses
+ when resolving @dtpoff relocation.
+ This is PT_TLS segment p_vaddr. */
+
+static bfd_vma
+dtpoff_base (struct bfd_link_info *info)
+{
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_sec == NULL)
+ return 0;
+ return elf_hash_table (info)->tls_sec->vma;
+}
+
+/* Return the relocation value for R_SH_TLS_TPOFF32.. */
+
+static bfd_vma
+tpoff (struct bfd_link_info *info, bfd_vma address)
+{
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_sec == NULL)
+ return 0;
+ /* SH TLS ABI is variant I and static TLS block start just after tcbhead
+ structure which has 2 pointer fields. */
+ return (address - elf_hash_table (info)->tls_sec->vma
+ + align_power ((bfd_vma) 8,
+ elf_hash_table (info)->tls_sec->alignment_power));
+}
+
+static asection *
+sh_elf_gc_mark_hook (asection *sec,
+ struct bfd_link_info *info,
+ Elf_Internal_Rela *rel,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
+{
+ if (h != NULL)
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_SH_GNU_VTINHERIT:
+ case R_SH_GNU_VTENTRY:
+ return NULL;
+ }
+
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
+}
+
/* Update the got entry reference counts for the section being removed. */
-static boolean
-sh_elf_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;
+static bfd_boolean
+sh_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
+ asection *sec, const Elf_Internal_Rela *relocs)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ bfd_signed_vma *local_got_refcounts;
+ union gotref *local_funcdesc;
+ const Elf_Internal_Rela *rel, *relend;
+
+ if (info->relocatable)
+ return TRUE;
+
+ elf_section_data (sec)->local_dynrel = NULL;
+
+ symtab_hdr = &elf_symtab_hdr (abfd);
+ sym_hashes = elf_sym_hashes (abfd);
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ local_funcdesc = sh_elf_local_funcdesc (abfd);
+
+ relend = relocs + sec->reloc_count;
+ for (rel = relocs; rel < relend; rel++)
+ {
+ unsigned long r_symndx;
+ unsigned int r_type;
+ struct elf_link_hash_entry *h = NULL;
+#ifdef INCLUDE_SHMEDIA
+ int seen_stt_datalabel = 0;
+#endif
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ struct elf_sh_link_hash_entry *eh;
+ struct elf_sh_dyn_relocs **pp;
+ struct elf_sh_dyn_relocs *p;
+
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ {
+#ifdef INCLUDE_SHMEDIA
+ seen_stt_datalabel |= h->type == STT_DATALABEL;
+#endif
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ }
+ eh = (struct elf_sh_link_hash_entry *) h;
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+ if (p->sec == sec)
+ {
+ /* Everything must go for SEC. */
+ *pp = p->next;
+ break;
+ }
+ }
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ switch (sh_elf_optimized_tls_reloc (info, r_type, h != NULL))
+ {
+ case R_SH_TLS_LD_32:
+ if (sh_elf_hash_table (info)->tls_ldm_got.refcount > 0)
+ sh_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
+ break;
+
+ case R_SH_GOT32:
+ case R_SH_GOT20:
+ case R_SH_GOTOFF:
+ case R_SH_GOTOFF20:
+ case R_SH_GOTPC:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOT_LOW16:
+ case R_SH_GOT_MEDLOW16:
+ case R_SH_GOT_MEDHI16:
+ case R_SH_GOT_HI16:
+ case R_SH_GOT10BY4:
+ case R_SH_GOT10BY8:
+ case R_SH_GOTOFF_LOW16:
+ case R_SH_GOTOFF_MEDLOW16:
+ case R_SH_GOTOFF_MEDHI16:
+ case R_SH_GOTOFF_HI16:
+ case R_SH_GOTPC_LOW16:
+ case R_SH_GOTPC_MEDLOW16:
+ case R_SH_GOTPC_MEDHI16:
+ case R_SH_GOTPC_HI16:
+#endif
+ case R_SH_TLS_GD_32:
+ case R_SH_TLS_IE_32:
+ case R_SH_GOTFUNCDESC:
+ case R_SH_GOTFUNCDESC20:
+ if (h != NULL)
+ {
+#ifdef INCLUDE_SHMEDIA
+ if (seen_stt_datalabel)
+ {
+ struct elf_sh_link_hash_entry *eh;
+ eh = (struct elf_sh_link_hash_entry *) h;
+ if (eh->datalabel_got.refcount > 0)
+ eh->datalabel_got.refcount -= 1;
+ }
+ else
+#endif
+ if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ }
+ else if (local_got_refcounts != NULL)
+ {
+#ifdef INCLUDE_SHMEDIA
+ if (rel->r_addend & 1)
+ {
+ if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
+ local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
+ }
+ else
+#endif
+ if (local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx] -= 1;
+ }
+ break;
+
+ case R_SH_FUNCDESC:
+ if (h != NULL)
+ sh_elf_hash_entry (h)->abs_funcdesc_refcount -= 1;
+ else if (sh_elf_hash_table (info)->fdpic_p && !info->shared)
+ sh_elf_hash_table (info)->srofixup->size -= 4;
+
+ /* Fall through. */
+
+ case R_SH_GOTOFFFUNCDESC:
+ case R_SH_GOTOFFFUNCDESC20:
+ if (h != NULL)
+ sh_elf_hash_entry (h)->funcdesc.refcount -= 1;
+ else
+ local_funcdesc[r_symndx].refcount -= 1;
+ break;
+
+ case R_SH_DIR32:
+ if (sh_elf_hash_table (info)->fdpic_p && !info->shared
+ && (sec->flags & SEC_ALLOC) != 0)
+ sh_elf_hash_table (info)->srofixup->size -= 4;
+ /* Fall thru */
+
+ case R_SH_REL32:
+ if (info->shared)
+ break;
+ /* Fall thru */
+
+ case R_SH_PLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_PLT_LOW16:
+ case R_SH_PLT_MEDLOW16:
+ case R_SH_PLT_MEDHI16:
+ case R_SH_PLT_HI16:
+#endif
+ if (h != NULL)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ break;
+
+ case R_SH_GOTPLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPLT_LOW16:
+ case R_SH_GOTPLT_MEDLOW16:
+ case R_SH_GOTPLT_MEDHI16:
+ case R_SH_GOTPLT_HI16:
+ case R_SH_GOTPLT10BY4:
+ case R_SH_GOTPLT10BY8:
+#endif
+ if (h != NULL)
+ {
+ struct elf_sh_link_hash_entry *eh;
+ eh = (struct elf_sh_link_hash_entry *) h;
+ if (eh->gotplt_refcount > 0)
+ {
+ eh->gotplt_refcount -= 1;
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+#ifdef INCLUDE_SHMEDIA
+ else if (seen_stt_datalabel)
+ {
+ if (eh->datalabel_got.refcount > 0)
+ eh->datalabel_got.refcount -= 1;
+ }
+#endif
+ else if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ }
+ else if (local_got_refcounts != NULL)
+ {
+#ifdef INCLUDE_SHMEDIA
+ if (rel->r_addend & 1)
+ {
+ if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
+ local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
+ }
+ else
+#endif
+ if (local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx] -= 1;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return TRUE;
+}
+
+/* Copy the extra info we tack onto an elf_link_hash_entry. */
+
+static void
+sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *dir,
+ struct elf_link_hash_entry *ind)
{
- /* We use got and plt entries for sh, but it would seem that the
- existing SH 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. */
- return true;
+ struct elf_sh_link_hash_entry *edir, *eind;
+
+ edir = (struct elf_sh_link_hash_entry *) dir;
+ eind = (struct elf_sh_link_hash_entry *) ind;
+
+ if (eind->dyn_relocs != NULL)
+ {
+ if (edir->dyn_relocs != NULL)
+ {
+ struct elf_sh_dyn_relocs **pp;
+ struct elf_sh_dyn_relocs *p;
+
+ /* Add reloc counts against the indirect sym to the direct sym
+ list. Merge any entries against the same section. */
+ for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
+ {
+ struct elf_sh_dyn_relocs *q;
+
+ for (q = edir->dyn_relocs; q != NULL; q = q->next)
+ if (q->sec == p->sec)
+ {
+ q->pc_count += p->pc_count;
+ q->count += p->count;
+ *pp = p->next;
+ break;
+ }
+ if (q == NULL)
+ pp = &p->next;
+ }
+ *pp = edir->dyn_relocs;
+ }
+
+ edir->dyn_relocs = eind->dyn_relocs;
+ eind->dyn_relocs = NULL;
+ }
+ edir->gotplt_refcount = eind->gotplt_refcount;
+ eind->gotplt_refcount = 0;
+#ifdef INCLUDE_SHMEDIA
+ edir->datalabel_got.refcount += eind->datalabel_got.refcount;
+ eind->datalabel_got.refcount = 0;
+#endif
+ edir->funcdesc.refcount += eind->funcdesc.refcount;
+ eind->funcdesc.refcount = 0;
+ edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
+ eind->abs_funcdesc_refcount = 0;
+
+ if (ind->root.type == bfd_link_hash_indirect
+ && dir->got.refcount <= 0)
+ {
+ edir->got_type = eind->got_type;
+ eind->got_type = GOT_UNKNOWN;
+ }
+
+ if (ind->root.type != bfd_link_hash_indirect
+ && dir->dynamic_adjusted)
+ {
+ /* If called to transfer flags for a weakdef during processing
+ of elf_adjust_dynamic_symbol, don't copy non_got_ref.
+ We clear it ourselves for ELIMINATE_COPY_RELOCS. */
+ dir->ref_dynamic |= ind->ref_dynamic;
+ dir->ref_regular |= ind->ref_regular;
+ dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
+ dir->needs_plt |= ind->needs_plt;
+ }
+ else
+ _bfd_elf_link_hash_copy_indirect (info, dir, ind);
+}
+
+static int
+sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
+ int is_local)
+{
+ if (info->shared)
+ return r_type;
+
+ switch (r_type)
+ {
+ case R_SH_TLS_GD_32:
+ case R_SH_TLS_IE_32:
+ if (is_local)
+ return R_SH_TLS_LE_32;
+ return R_SH_TLS_IE_32;
+ case R_SH_TLS_LD_32:
+ return R_SH_TLS_LE_32;
+ }
+
+ return r_type;
}
/* Look through the relocs for a section during the first phase.
Since we don't do .gots or .plts, we just need to consider the
virtual table relocs for gc. */
-static boolean
-sh_elf_check_relocs (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
+static bfd_boolean
+sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
+ const Elf_Internal_Rela *relocs)
{
Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_sh_link_hash_table *htab;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
- bfd *dynobj;
- bfd_vma *local_got_offsets;
- asection *sgot;
- asection *srelgot;
asection *sreloc;
+ unsigned int r_type;
+ enum got_type got_type, old_got_type;
- sgot = NULL;
- srelgot = NULL;
sreloc = NULL;
- if (info->relocateable)
- return true;
+ if (info->relocatable)
+ return TRUE;
+
+ BFD_ASSERT (is_sh_elf (abfd));
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ symtab_hdr = &elf_symtab_hdr (abfd);
sym_hashes = elf_sym_hashes (abfd);
- sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
- if (!elf_bad_symtab (abfd))
- sym_hashes_end -= symtab_hdr->sh_info;
- dynobj = elf_hash_table (info)->dynobj;
- local_got_offsets = elf_local_got_offsets (abfd);
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
struct elf_link_hash_entry *h;
unsigned long r_symndx;
+#ifdef INCLUDE_SHMEDIA
+ int seen_stt_datalabel = 0;
+#endif
r_symndx = ELF32_R_SYM (rel->r_info);
+ r_type = ELF32_R_TYPE (rel->r_info);
+
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ {
+#ifdef INCLUDE_SHMEDIA
+ seen_stt_datalabel |= h->type == STT_DATALABEL;
+#endif
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ }
+ }
+
+ r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
+ if (! info->shared
+ && r_type == R_SH_TLS_IE_32
+ && h != NULL
+ && h->root.type != bfd_link_hash_undefined
+ && h->root.type != bfd_link_hash_undefweak
+ && (h->dynindx == -1
+ || h->def_regular))
+ r_type = R_SH_TLS_LE_32;
+
+ if (htab->fdpic_p)
+ switch (r_type)
+ {
+ case R_SH_GOTOFFFUNCDESC:
+ case R_SH_GOTOFFFUNCDESC20:
+ case R_SH_FUNCDESC:
+ case R_SH_GOTFUNCDESC:
+ case R_SH_GOTFUNCDESC20:
+ if (h != NULL)
+ {
+ if (h->dynindx == -1)
+ switch (ELF_ST_VISIBILITY (h->other))
+ {
+ case STV_INTERNAL:
+ case STV_HIDDEN:
+ break;
+ default:
+ bfd_elf_link_record_dynamic_symbol (info, h);
+ break;
+ }
+ }
+ break;
+ }
/* Some relocs require a global offset table. */
- if (dynobj == NULL)
+ if (htab->sgot == NULL)
+ {
+ switch (r_type)
+ {
+ case R_SH_DIR32:
+ /* This may require an rofixup. */
+ if (!htab->fdpic_p)
+ break;
+ case R_SH_GOTPLT32:
+ case R_SH_GOT32:
+ case R_SH_GOT20:
+ case R_SH_GOTOFF:
+ case R_SH_GOTOFF20:
+ case R_SH_FUNCDESC:
+ case R_SH_GOTFUNCDESC:
+ case R_SH_GOTFUNCDESC20:
+ case R_SH_GOTOFFFUNCDESC:
+ case R_SH_GOTOFFFUNCDESC20:
+ case R_SH_GOTPC:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPLT_LOW16:
+ case R_SH_GOTPLT_MEDLOW16:
+ case R_SH_GOTPLT_MEDHI16:
+ case R_SH_GOTPLT_HI16:
+ case R_SH_GOTPLT10BY4:
+ case R_SH_GOTPLT10BY8:
+ case R_SH_GOT_LOW16:
+ case R_SH_GOT_MEDLOW16:
+ case R_SH_GOT_MEDHI16:
+ case R_SH_GOT_HI16:
+ case R_SH_GOT10BY4:
+ case R_SH_GOT10BY8:
+ case R_SH_GOTOFF_LOW16:
+ case R_SH_GOTOFF_MEDLOW16:
+ case R_SH_GOTOFF_MEDHI16:
+ case R_SH_GOTOFF_HI16:
+ case R_SH_GOTPC_LOW16:
+ case R_SH_GOTPC_MEDLOW16:
+ case R_SH_GOTPC_MEDHI16:
+ case R_SH_GOTPC_HI16:
+#endif
+ case R_SH_TLS_GD_32:
+ case R_SH_TLS_LD_32:
+ case R_SH_TLS_IE_32:
+ if (htab->root.dynobj == NULL)
+ htab->root.dynobj = abfd;
+ if (!create_got_section (htab->root.dynobj, info))
+ return FALSE;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ switch (r_type)
{
- switch (ELF32_R_TYPE (rel->r_info))
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_SH_GNU_VTINHERIT:
+ if (!bfd_elf_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_SH_GNU_VTENTRY:
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+
+ case R_SH_TLS_IE_32:
+ if (info->shared)
+ info->flags |= DF_STATIC_TLS;
+
+ /* FALLTHROUGH */
+ force_got:
+ case R_SH_TLS_GD_32:
+ case R_SH_GOT32:
+ case R_SH_GOT20:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOT_LOW16:
+ case R_SH_GOT_MEDLOW16:
+ case R_SH_GOT_MEDHI16:
+ case R_SH_GOT_HI16:
+ case R_SH_GOT10BY4:
+ case R_SH_GOT10BY8:
+#endif
+ case R_SH_GOTFUNCDESC:
+ case R_SH_GOTFUNCDESC20:
+ switch (r_type)
+ {
+ default:
+ got_type = GOT_NORMAL;
+ break;
+ case R_SH_TLS_GD_32:
+ got_type = GOT_TLS_GD;
+ break;
+ case R_SH_TLS_IE_32:
+ got_type = GOT_TLS_IE;
+ break;
+ case R_SH_GOTFUNCDESC:
+ case R_SH_GOTFUNCDESC20:
+ got_type = GOT_FUNCDESC;
+ break;
+ }
+
+ if (h != NULL)
+ {
+#ifdef INCLUDE_SHMEDIA
+ if (seen_stt_datalabel)
+ {
+ struct elf_sh_link_hash_entry *eh
+ = (struct elf_sh_link_hash_entry *) h;
+
+ eh->datalabel_got.refcount += 1;
+ }
+ else
+#endif
+ h->got.refcount += 1;
+ old_got_type = sh_elf_hash_entry (h)->got_type;
+ }
+ else
+ {
+ bfd_signed_vma *local_got_refcounts;
+
+ /* This is a global offset table entry for a local
+ symbol. */
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ if (local_got_refcounts == NULL)
+ {
+ bfd_size_type size;
+
+ size = symtab_hdr->sh_info;
+ size *= sizeof (bfd_signed_vma);
+#ifdef INCLUDE_SHMEDIA
+ /* Reserve space for both the datalabel and
+ codelabel local GOT offsets. */
+ size *= 2;
+#endif
+ size += symtab_hdr->sh_info;
+ local_got_refcounts = ((bfd_signed_vma *)
+ bfd_zalloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return FALSE;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+#ifdef INCLUDE_SHMEDIA
+ /* Take care of both the datalabel and codelabel local
+ GOT offsets. */
+ sh_elf_local_got_type (abfd)
+ = (char *) (local_got_refcounts + 2 * symtab_hdr->sh_info);
+#else
+ sh_elf_local_got_type (abfd)
+ = (char *) (local_got_refcounts + symtab_hdr->sh_info);
+#endif
+ }
+#ifdef INCLUDE_SHMEDIA
+ if (rel->r_addend & 1)
+ local_got_refcounts[symtab_hdr->sh_info + r_symndx] += 1;
+ else
+#endif
+ local_got_refcounts[r_symndx] += 1;
+ old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
+ }
+
+ /* If a TLS symbol is accessed using IE at least once,
+ there is no point to use dynamic model for it. */
+ if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
+ && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
{
- case R_SH_GOT32:
- case R_SH_GOTOFF:
- case R_SH_GOTPC:
- elf_hash_table (info)->dynobj = dynobj = abfd;
- if (! _bfd_elf_create_got_section (dynobj, info))
- return false;
- break;
+ if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
+ got_type = GOT_TLS_IE;
+ else
+ {
+ if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
+ && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
+ (*_bfd_error_handler)
+ (_("%B: `%s' accessed both as normal and FDPIC symbol"),
+ abfd, h->root.root.string);
+ else if (old_got_type == GOT_FUNCDESC
+ || got_type == GOT_FUNCDESC)
+ (*_bfd_error_handler)
+ (_("%B: `%s' accessed both as FDPIC and thread local symbol"),
+ abfd, h->root.root.string);
+ else
+ (*_bfd_error_handler)
+ (_("%B: `%s' accessed both as normal and thread local symbol"),
+ abfd, h->root.root.string);
+ return FALSE;
+ }
+ }
- default:
- break;
+ if (old_got_type != got_type)
+ {
+ if (h != NULL)
+ sh_elf_hash_entry (h)->got_type = got_type;
+ else
+ sh_elf_local_got_type (abfd) [r_symndx] = got_type;
}
- }
- switch (ELF32_R_TYPE (rel->r_info))
- {
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_SH_GNU_VTINHERIT:
- if (!_bfd_elf32_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_SH_GNU_VTENTRY:
- if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return false;
+ case R_SH_TLS_LD_32:
+ sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
break;
- case R_SH_GOT32:
- /* This symbol requires a global offset table entry. */
-
- if (sgot == NULL)
+ case R_SH_FUNCDESC:
+ case R_SH_GOTOFFFUNCDESC:
+ case R_SH_GOTOFFFUNCDESC20:
+ if (rel->r_addend)
{
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
+ (*_bfd_error_handler)
+ (_("%B: Function descriptor relocation with non-zero addend"),
+ abfd);
+ return FALSE;
}
- if (srelgot == NULL
- && (h != NULL || info->shared))
+ if (h == NULL)
{
- srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
- if (srelgot == NULL)
- {
- srelgot = bfd_make_section (dynobj, ".rela.got");
- if (srelgot == NULL
- || ! bfd_set_section_flags (dynobj, srelgot,
- (SEC_ALLOC
- | SEC_LOAD
- | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY
- | SEC_LINKER_CREATED
- | SEC_READONLY))
- || ! bfd_set_section_alignment (dynobj, srelgot, 2))
- return false;
- }
- }
+ union gotref *local_funcdesc;
- if (h != NULL)
- {
- if (h->got.offset != (bfd_vma) -1)
+ /* We need a function descriptor for a local symbol. */
+ local_funcdesc = sh_elf_local_funcdesc (abfd);
+ if (local_funcdesc == NULL)
{
- /* We have already allocated space in the .got. */
- break;
+ bfd_size_type size;
+
+ size = symtab_hdr->sh_info * sizeof (union gotref);
+#ifdef INCLUDE_SHMEDIA
+ /* Count datalabel local GOT. */
+ size *= 2;
+#endif
+ local_funcdesc = (union gotref *) bfd_zalloc (abfd, size);
+ if (local_funcdesc == NULL)
+ return FALSE;
+ sh_elf_local_funcdesc (abfd) = local_funcdesc;
}
- h->got.offset = sgot->_raw_size;
+ local_funcdesc[r_symndx].refcount += 1;
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
+ if (r_type == R_SH_FUNCDESC)
{
- if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
+ if (!info->shared)
+ htab->srofixup->size += 4;
+ else
+ htab->srelgot->size += sizeof (Elf32_External_Rela);
}
-
- srelgot->_raw_size += sizeof (Elf32_External_Rela);
}
else
{
- /* This is a global offset table entry for a local
- symbol. */
- if (local_got_offsets == NULL)
- {
- bfd_size_type size;
- register unsigned int i;
-
- size = symtab_hdr->sh_info;
- size *= sizeof (bfd_vma);
- local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
- if (local_got_offsets == NULL)
- return false;
- elf_local_got_offsets (abfd) = local_got_offsets;
- for (i = 0; i < symtab_hdr->sh_info; i++)
- local_got_offsets[i] = (bfd_vma) -1;
- }
- if (local_got_offsets[r_symndx] != (bfd_vma) -1)
- {
- /* We have already allocated space in the .got. */
- break;
- }
- local_got_offsets[r_symndx] = sgot->_raw_size;
-
- if (info->shared)
+ sh_elf_hash_entry (h)->funcdesc.refcount++;
+ if (r_type == R_SH_FUNCDESC)
+ sh_elf_hash_entry (h)->abs_funcdesc_refcount++;
+
+ /* If there is a function descriptor reference, then
+ there should not be any non-FDPIC references. */
+ old_got_type = sh_elf_hash_entry (h)->got_type;
+ if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN)
{
- /* If we are generating a shared object, we need to
- output a R_SH_RELATIVE reloc so that the dynamic
- linker can adjust this GOT entry. */
- srelgot->_raw_size += sizeof (Elf32_External_Rela);
+ if (old_got_type == GOT_NORMAL)
+ (*_bfd_error_handler)
+ (_("%B: `%s' accessed both as normal and FDPIC symbol"),
+ abfd, h->root.root.string);
+ else
+ (*_bfd_error_handler)
+ (_("%B: `%s' accessed both as FDPIC and thread local symbol"),
+ abfd, h->root.root.string);
}
}
+ break;
+
+ case R_SH_GOTPLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPLT_LOW16:
+ case R_SH_GOTPLT_MEDLOW16:
+ case R_SH_GOTPLT_MEDHI16:
+ case R_SH_GOTPLT_HI16:
+ case R_SH_GOTPLT10BY4:
+ case R_SH_GOTPLT10BY8:
+#endif
+ /* If this is a local symbol, we resolve it directly without
+ creating a procedure linkage table entry. */
+
+ if (h == NULL
+ || h->forced_local
+ || ! info->shared
+ || info->symbolic
+ || h->dynindx == -1)
+ goto force_got;
- sgot->_raw_size += 4;
+ h->needs_plt = 1;
+ h->plt.refcount += 1;
+ ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
break;
case R_SH_PLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_PLT_LOW16:
+ case R_SH_PLT_MEDLOW16:
+ case R_SH_PLT_MEDHI16:
+ case R_SH_PLT_HI16:
+#endif
/* This symbol requires a procedure linkage table entry. We
actually build the entry in adjust_dynamic_symbol,
because this might be a case of linking PIC code which is
if (h == NULL)
continue;
- if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
- || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
+ if (h->forced_local)
break;
- h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
-
+ h->needs_plt = 1;
+ h->plt.refcount += 1;
break;
case R_SH_DIR32:
case R_SH_REL32:
- if (h != NULL)
- h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_IMM_LOW16_PCREL:
+ case R_SH_IMM_MEDLOW16_PCREL:
+ case R_SH_IMM_MEDHI16_PCREL:
+ case R_SH_IMM_HI16_PCREL:
+#endif
+ if (h != NULL && ! info->shared)
+ {
+ h->non_got_ref = 1;
+ h->plt.refcount += 1;
+ }
/* If we are creating a shared library, and this is a reloc
against a global symbol, or a non PC relative reloc
possible that DEF_REGULAR is not set now but will be set
later (it is never cleared). We account for that
possibility below by storing information in the
- pcrel_relocs_copied field of the hash table entry. */
- if (info->shared
- && (sec->flags & SEC_ALLOC) != 0
- && (ELF32_R_TYPE (rel->r_info) != R_SH_REL32
- || (h != NULL
- && (! info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ dyn_relocs field of the hash table entry. A similar
+ situation occurs when creating shared libraries and symbol
+ visibility changes render the symbol local.
+
+ If on the other hand, we are creating an executable, we
+ may need to keep relocations for symbols satisfied by a
+ dynamic library if we manage to avoid copy relocs for the
+ symbol. */
+ if ((info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && (r_type != R_SH_REL32
+ || (h != NULL
+ && (! info->symbolic
+ || h->root.type == bfd_link_hash_defweak
+ || !h->def_regular))))
+ || (! info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && h != NULL
+ && (h->root.type == bfd_link_hash_defweak
+ || !h->def_regular)))
{
+ struct elf_sh_dyn_relocs *p;
+ struct elf_sh_dyn_relocs **head;
+
+ if (htab->root.dynobj == NULL)
+ htab->root.dynobj = abfd;
+
/* When creating a shared object, we must copy these
reloc types into the output file. We create a reloc
section in dynobj and make room for this reloc. */
if (sreloc == NULL)
{
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (abfd,
- elf_elfheader (abfd)->e_shstrndx,
- elf_section_data (sec)->rel_hdr.sh_name));
- if (name == NULL)
- return false;
+ sreloc = _bfd_elf_make_dynamic_reloc_section
+ (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (abfd, sec),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
if (sreloc == NULL)
- {
- flagword flags;
-
- sreloc = bfd_make_section (dynobj, name);
- flags = (SEC_HAS_CONTENTS | SEC_READONLY
- | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- if ((sec->flags & SEC_ALLOC) != 0)
- flags |= SEC_ALLOC | SEC_LOAD;
- if (sreloc == NULL
- || ! bfd_set_section_flags (dynobj, sreloc, flags)
- || ! bfd_set_section_alignment (dynobj, sreloc, 2))
- return false;
- }
- if (sec->flags & SEC_READONLY)
- info->flags |= DF_TEXTREL;
+ return FALSE;
}
- sreloc->_raw_size += sizeof (Elf32_External_Rela);
-
- /* If we are linking with -Bsymbolic, and this is a
- global symbol, we count the number of PC relative
- relocations we have entered for this symbol, so that
- we can discard them again if the symbol is later
- defined by a regular object. Note that this function
- is only called if we are using an elf_sh linker
- hash table, which means that h is really a pointer to
- an elf_sh_link_hash_entry. */
- if (h != NULL && info->symbolic
- && ELF32_R_TYPE (rel->r_info) == R_SH_REL32)
+ /* If this is a global symbol, we count the number of
+ relocations we need for this symbol. */
+ if (h != NULL)
+ head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
+ else
{
- struct elf_sh_link_hash_entry *eh;
- struct elf_sh_pcrel_relocs_copied *p;
+ /* Track dynamic relocs needed for local syms too. */
+ asection *s;
+ void *vpp;
+ Elf_Internal_Sym *isym;
+
+ isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ abfd, r_symndx);
+ if (isym == NULL)
+ return FALSE;
+
+ s = bfd_section_from_elf_index (abfd, isym->st_shndx);
+ if (s == NULL)
+ s = sec;
+
+ vpp = &elf_section_data (s)->local_dynrel;
+ head = (struct elf_sh_dyn_relocs **) vpp;
+ }
- eh = (struct elf_sh_link_hash_entry *) h;
+ p = *head;
+ if (p == NULL || p->sec != sec)
+ {
+ bfd_size_type amt = sizeof (*p);
+ p = bfd_alloc (htab->root.dynobj, amt);
+ if (p == NULL)
+ return FALSE;
+ p->next = *head;
+ *head = p;
+ p->sec = sec;
+ p->count = 0;
+ p->pc_count = 0;
+ }
- for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
- if (p->section == sreloc)
- break;
+ p->count += 1;
+ if (r_type == R_SH_REL32
+#ifdef INCLUDE_SHMEDIA
+ || r_type == R_SH_IMM_LOW16_PCREL
+ || r_type == R_SH_IMM_MEDLOW16_PCREL
+ || r_type == R_SH_IMM_MEDHI16_PCREL
+ || r_type == R_SH_IMM_HI16_PCREL
+#endif
+ )
+ p->pc_count += 1;
+ }
- if (p == NULL)
- {
- p = ((struct elf_sh_pcrel_relocs_copied *)
- bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
- if (p == NULL)
- return false;
- p->next = eh->pcrel_relocs_copied;
- eh->pcrel_relocs_copied = p;
- p->section = sreloc;
- p->count = 0;
- }
+ /* Allocate the fixup regardless of whether we need a relocation.
+ If we end up generating the relocation, we'll unallocate the
+ fixup. */
+ if (htab->fdpic_p && !info->shared
+ && r_type == R_SH_DIR32
+ && (sec->flags & SEC_ALLOC) != 0)
+ htab->srofixup->size += 4;
+ break;
- ++p->count;
- }
+ case R_SH_TLS_LE_32:
+ if (info->shared && !info->pie)
+ {
+ (*_bfd_error_handler)
+ (_("%B: TLS local exec code cannot be linked into shared objects"),
+ abfd);
+ return FALSE;
}
break;
+
+ case R_SH_TLS_LDO_32:
+ /* Nothing to do. */
+ break;
+
+ default:
+ break;
}
}
- return true;
+ return TRUE;
}
-static boolean
-sh_elf_set_mach_from_flags (abfd)
- bfd *abfd;
+#ifndef sh_elf_set_mach_from_flags
+static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
+
+static bfd_boolean
+sh_elf_set_mach_from_flags (bfd *abfd)
{
- flagword flags = elf_elfheader (abfd)->e_flags;
+ flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
- switch (flags & EF_SH_MACH_MASK)
- {
- case EF_SH1:
- bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh);
- break;
- case EF_SH2:
- bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh2);
- break;
- case EF_SH_DSP:
- bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh_dsp);
- break;
- case EF_SH3:
- bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3);
- break;
- case EF_SH3_DSP:
- bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3_dsp);
- break;
- case EF_SH3E:
- bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3e);
- break;
- case EF_SH_UNKNOWN:
- case EF_SH4:
- bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh4);
- break;
- default:
- return false;
- }
- return true;
+ if (flags >= sizeof(sh_ef_bfd_table))
+ return FALSE;
+
+ if (sh_ef_bfd_table[flags] == 0)
+ return FALSE;
+
+ bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
+
+ return TRUE;
+}
+
+
+/* Reverse table lookup for sh_ef_bfd_table[].
+ Given a bfd MACH value from archures.c
+ return the equivalent ELF flags from the table.
+ Return -1 if no match is found. */
+
+int
+sh_elf_get_flags_from_mach (unsigned long mach)
+{
+ int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
+
+ for (; i>0; i--)
+ if (sh_ef_bfd_table[i] == mach)
+ return i;
+
+ /* shouldn't get here */
+ BFD_FAIL();
+
+ return -1;
}
+#endif /* not sh_elf_set_mach_from_flags */
+#ifndef sh_elf_set_private_flags
/* Function to keep SH specific file flags. */
-static boolean
-sh_elf_set_private_flags (abfd, flags)
- bfd *abfd;
- flagword flags;
+static bfd_boolean
+sh_elf_set_private_flags (bfd *abfd, flagword flags)
{
BFD_ASSERT (! elf_flags_init (abfd)
|| elf_elfheader (abfd)->e_flags == flags);
elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = true;
+ elf_flags_init (abfd) = TRUE;
return sh_elf_set_mach_from_flags (abfd);
}
+#endif /* not sh_elf_set_private_flags */
+#ifndef sh_elf_copy_private_data
/* Copy backend specific data from one object module to another */
-static boolean
-sh_elf_copy_private_data (ibfd, obfd)
- bfd * ibfd;
- bfd * obfd;
+static bfd_boolean
+sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
{
- if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
+ /* Copy object attributes. */
+ _bfd_elf_copy_obj_attributes (ibfd, obfd);
+
+ if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
+ return TRUE;
return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
}
+#endif /* not sh_elf_copy_private_data */
+
+#ifndef sh_elf_merge_private_data
-/* This routine checks for linking big and little endian objects
- together, and for linking sh-dsp with sh3e / sh4 objects. */
+/* This function returns the ELF architecture number that
+ corresponds to the given arch_sh* flags. */
-static boolean
-sh_elf_merge_private_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
+int
+sh_find_elf_flags (unsigned int arch_set)
{
- flagword old_flags, new_flags;
+ extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
+ unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
+
+ return sh_elf_get_flags_from_mach (bfd_mach);
+}
- if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
- return false;
+/* This routine initialises the elf flags when required and
+ calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
- if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
+static bfd_boolean
+sh_elf_merge_private_data (bfd *ibfd, bfd *obfd)
+{
+ extern bfd_boolean sh_merge_bfd_arch (bfd *, bfd *);
+
+ if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
+ return TRUE;
if (! elf_flags_init (obfd))
{
/* This happens when ld starts out with a 'blank' output file. */
- elf_flags_init (obfd) = true;
- elf_elfheader (obfd)->e_flags = EF_SH1;
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
+ sh_elf_set_mach_from_flags (obfd);
+ if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
+ elf_elfheader (obfd)->e_flags |= EF_SH_PIC;
+ }
+
+ if (! sh_merge_bfd_arch (ibfd, obfd))
+ {
+ _bfd_error_handler ("%B: uses instructions which are incompatible "
+ "with instructions used in previous modules",
+ ibfd);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
}
- old_flags = elf_elfheader (obfd)->e_flags;
- new_flags = elf_elfheader (ibfd)->e_flags;
- if ((EF_SH_HAS_DSP (old_flags) && EF_SH_HAS_FP (new_flags))
- || (EF_SH_HAS_DSP (new_flags) && EF_SH_HAS_FP (old_flags)))
+
+ elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
+ elf_elfheader (obfd)->e_flags |=
+ sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
+
+ if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
{
- (*_bfd_error_handler)
- ("%s: uses %s instructions while previous modules use %s instructions",
- bfd_archive_filename (ibfd),
- EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point",
- EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp");
+ _bfd_error_handler ("%B: attempt to mix FDPIC and non-FDPIC objects",
+ ibfd);
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
- elf_elfheader (obfd)->e_flags = EF_SH_MERGE_MACH (old_flags, new_flags);
- return sh_elf_set_mach_from_flags (obfd);
+ return TRUE;
+}
+#endif /* not sh_elf_merge_private_data */
+
+/* Override the generic function because we need to store sh_elf_obj_tdata
+ as the specific tdata. We set also the machine architecture from flags
+ here. */
+
+static bfd_boolean
+sh_elf_object_p (bfd *abfd)
+{
+ if (! sh_elf_set_mach_from_flags (abfd))
+ return FALSE;
+
+ return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0)
+ == fdpic_object_p (abfd));
}
/* Finish up dynamic symbol handling. We set the contents of various
dynamic sections here. */
-static boolean
-sh_elf_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;
+static bfd_boolean
+sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
{
- bfd *dynobj;
+ struct elf_sh_link_hash_table *htab;
- dynobj = elf_hash_table (info)->dynobj;
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
if (h->plt.offset != (bfd_vma) -1)
{
asection *splt;
- asection *sgot;
- asection *srel;
+ asection *sgotplt;
+ asection *srelplt;
bfd_vma plt_index;
bfd_vma got_offset;
Elf_Internal_Rela rel;
+ bfd_byte *loc;
+ const struct elf_sh_plt_info *plt_info;
/* This symbol has an entry in the procedure linkage table. Set
it up. */
BFD_ASSERT (h->dynindx != -1);
- splt = bfd_get_section_by_name (dynobj, ".plt");
- sgot = bfd_get_section_by_name (dynobj, ".got.plt");
- srel = bfd_get_section_by_name (dynobj, ".rela.plt");
- BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
+ splt = htab->splt;
+ sgotplt = htab->sgotplt;
+ srelplt = htab->srelplt;
+ BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
/* Get the index in the procedure linkage table which
corresponds to this symbol. This is the index of this symbol
in all the symbols for which we are making plt entries. The
first entry in the procedure linkage table is reserved. */
- plt_index = h->plt.offset / elf_sh_sizeof_plt (info) - 1;
+ plt_index = get_plt_index (htab->plt_info, h->plt.offset);
+
+ plt_info = htab->plt_info;
+ if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT)
+ plt_info = plt_info->short_plt;
/* Get the offset into the .got table of the entry that
- corresponds to this function. Each .got entry is 4 bytes.
- The first three are reserved. */
- got_offset = (plt_index + 3) * 4;
+ corresponds to this function. */
+ if (htab->fdpic_p)
+ /* The offset must be relative to the GOT symbol, twelve bytes
+ before the end of .got.plt. Each descriptor is eight
+ bytes. */
+ got_offset = plt_index * 8 + 12 - sgotplt->size;
+ else
+ /* Each .got entry is 4 bytes. The first three are
+ reserved. */
+ got_offset = (plt_index + 3) * 4;
+
+#ifdef GOT_BIAS
+ if (info->shared)
+ got_offset -= GOT_BIAS;
+#endif
/* Fill in the entry in the procedure linkage table. */
- if (! info->shared)
+ memcpy (splt->contents + h->plt.offset,
+ plt_info->symbol_entry,
+ plt_info->symbol_entry_size);
+
+ if (info->shared || htab->fdpic_p)
{
- if (elf_sh_plt_entry == NULL)
+ if (plt_info->symbol_fields.got20)
{
- elf_sh_plt_entry = (bfd_big_endian (output_bfd) ?
- elf_sh_plt_entry_be : elf_sh_plt_entry_le);
+ bfd_reloc_status_type r;
+ r = install_movi20_field (output_bfd, got_offset,
+ splt->owner, splt, splt->contents,
+ h->plt.offset
+ + plt_info->symbol_fields.got_entry);
+ BFD_ASSERT (r == bfd_reloc_ok);
}
- memcpy (splt->contents + h->plt.offset, elf_sh_plt_entry,
- elf_sh_sizeof_plt (info));
- bfd_put_32 (output_bfd,
- (sgot->output_section->vma
- + sgot->output_offset
- + got_offset),
- (splt->contents + h->plt.offset
- + elf_sh_plt_symbol_offset (info)));
-
- bfd_put_32 (output_bfd,
- (splt->output_section->vma + splt->output_offset),
- (splt->contents + h->plt.offset
- + elf_sh_plt_plt0_offset (info)));
+ else
+ install_plt_field (output_bfd, FALSE, got_offset,
+ (splt->contents
+ + h->plt.offset
+ + plt_info->symbol_fields.got_entry));
}
else
{
- if (elf_sh_pic_plt_entry == NULL)
+ BFD_ASSERT (!plt_info->symbol_fields.got20);
+
+ install_plt_field (output_bfd, FALSE,
+ (sgotplt->output_section->vma
+ + sgotplt->output_offset
+ + got_offset),
+ (splt->contents
+ + h->plt.offset
+ + plt_info->symbol_fields.got_entry));
+ if (htab->vxworks_p)
{
- elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
- elf_sh_pic_plt_entry_be :
- elf_sh_pic_plt_entry_le);
+ unsigned int reachable_plts, plts_per_4k;
+ int distance;
+
+ /* Divide the PLT into groups. The first group contains
+ REACHABLE_PLTS entries and the other groups contain
+ PLTS_PER_4K entries. Entries in the first group can
+ branch directly to .plt; those in later groups branch
+ to the last element of the previous group. */
+ /* ??? It would be better to create multiple copies of
+ the common resolver stub. */
+ reachable_plts = ((4096
+ - plt_info->plt0_entry_size
+ - (plt_info->symbol_fields.plt + 4))
+ / plt_info->symbol_entry_size) + 1;
+ plts_per_4k = (4096 / plt_info->symbol_entry_size);
+ if (plt_index < reachable_plts)
+ distance = -(h->plt.offset
+ + plt_info->symbol_fields.plt);
+ else
+ distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
+ * plt_info->symbol_entry_size);
+
+ /* Install the 'bra' with this offset. */
+ bfd_put_16 (output_bfd,
+ 0xa000 | (0x0fff & ((distance - 4) / 2)),
+ (splt->contents
+ + h->plt.offset
+ + plt_info->symbol_fields.plt));
}
- memcpy (splt->contents + h->plt.offset, elf_sh_pic_plt_entry,
- elf_sh_sizeof_plt (info));
- bfd_put_32 (output_bfd, got_offset,
- (splt->contents + h->plt.offset
- + elf_sh_plt_symbol_offset (info)));
+ else
+ install_plt_field (output_bfd, TRUE,
+ splt->output_section->vma + splt->output_offset,
+ (splt->contents
+ + h->plt.offset
+ + plt_info->symbol_fields.plt));
}
- bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
- (splt->contents + h->plt.offset
- + elf_sh_plt_reloc_offset (info)));
+ /* Make got_offset relative to the start of .got.plt. */
+#ifdef GOT_BIAS
+ if (info->shared)
+ got_offset += GOT_BIAS;
+#endif
+ if (htab->fdpic_p)
+ got_offset = plt_index * 8;
+
+ if (plt_info->symbol_fields.reloc_offset != MINUS_ONE)
+ install_plt_field (output_bfd, FALSE,
+ plt_index * sizeof (Elf32_External_Rela),
+ (splt->contents
+ + h->plt.offset
+ + plt_info->symbol_fields.reloc_offset));
/* Fill in the entry in the global offset table. */
bfd_put_32 (output_bfd,
(splt->output_section->vma
+ splt->output_offset
+ h->plt.offset
- + elf_sh_plt_temp_offset (info)),
- sgot->contents + got_offset);
+ + plt_info->symbol_resolve_offset),
+ sgotplt->contents + got_offset);
+ if (htab->fdpic_p)
+ bfd_put_32 (output_bfd,
+ sh_elf_osec_to_segment (output_bfd,
+ htab->splt->output_section),
+ sgotplt->contents + got_offset + 4);
/* Fill in the entry in the .rela.plt section. */
- rel.r_offset = (sgot->output_section->vma
- + sgot->output_offset
+ rel.r_offset = (sgotplt->output_section->vma
+ + sgotplt->output_offset
+ got_offset);
- rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
+ if (htab->fdpic_p)
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE);
+ else
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
rel.r_addend = 0;
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- ((Elf32_External_Rela *) srel->contents
- + plt_index));
+#ifdef GOT_BIAS
+ rel.r_addend = GOT_BIAS;
+#endif
+ loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+
+ if (htab->vxworks_p && !info->shared)
+ {
+ /* Create the .rela.plt.unloaded relocations for this PLT entry.
+ Begin by pointing LOC to the first such relocation. */
+ loc = (htab->srelplt2->contents
+ + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela));
+
+ /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
+ for the PLT entry's pointer to the .got.plt entry. */
+ rel.r_offset = (htab->splt->output_section->vma
+ + htab->splt->output_offset
+ + h->plt.offset
+ + plt_info->symbol_fields.got_entry);
+ rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
+ rel.r_addend = got_offset;
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ loc += sizeof (Elf32_External_Rela);
+
+ /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
+ the .got.plt entry, which initially points to .plt. */
+ rel.r_offset = (sgotplt->output_section->vma
+ + sgotplt->output_offset
+ + got_offset);
+ rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32);
+ rel.r_addend = 0;
+ bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
+ }
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ if (!h->def_regular)
{
/* Mark the symbol as undefined, rather than as defined in
the .plt section. Leave the value alone. */
}
}
- if (h->got.offset != (bfd_vma) -1)
+ if (h->got.offset != (bfd_vma) -1
+ && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD
+ && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE
+ && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC)
{
asection *sgot;
- asection *srel;
+ asection *srelgot;
Elf_Internal_Rela rel;
+ bfd_byte *loc;
/* This symbol has an entry in the global offset table. Set it
up. */
- sgot = bfd_get_section_by_name (dynobj, ".got");
- srel = bfd_get_section_by_name (dynobj, ".rela.got");
- BFD_ASSERT (sgot != NULL && srel != NULL);
+ sgot = htab->sgot;
+ srelgot = htab->srelgot;
+ BFD_ASSERT (sgot != NULL && srelgot != NULL);
rel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ (h->got.offset &~ (bfd_vma) 1));
- /* If this is a -Bsymbolic link, and the symbol is defined
- locally, we just want to emit a RELATIVE reloc. Likewise if
- the symbol was forced to be local because of a version file.
+ /* If this is a static link, or it is a -Bsymbolic link and the
+ symbol is defined locally or was forced to be local because
+ of a version file, we just want to emit a RELATIVE reloc.
The entry in the global offset table will already have been
initialized in the relocate_section function. */
if (info->shared
- && (info->symbolic || h->dynindx == -1)
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ && SYMBOL_REFERENCES_LOCAL (info, h))
{
- rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
- rel.r_addend = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
+ if (htab->fdpic_p)
+ {
+ asection *sec = h->root.u.def.section;
+ int dynindx
+ = elf_section_data (sec->output_section)->dynindx;
+
+ rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
+ rel.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_offset);
+ }
+ else
+ {
+ rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
+ rel.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
}
else
{
rel.r_addend = 0;
}
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- ((Elf32_External_Rela *) srel->contents
- + srel->reloc_count));
- ++srel->reloc_count;
+ loc = srelgot->contents;
+ loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
}
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
+#ifdef INCLUDE_SHMEDIA
+ {
+ struct elf_sh_link_hash_entry *eh;
+
+ eh = (struct elf_sh_link_hash_entry *) h;
+ if (eh->datalabel_got.offset != (bfd_vma) -1)
+ {
+ asection *sgot;
+ asection *srelgot;
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
+
+ /* This symbol has a datalabel entry in the global offset table.
+ Set it up. */
+
+ sgot = htab->sgot;
+ srelgot = htab->srelgot;
+ BFD_ASSERT (sgot != NULL && srelgot != NULL);
+
+ rel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + (eh->datalabel_got.offset &~ (bfd_vma) 1));
+
+ /* If this is a static link, or it is a -Bsymbolic link and the
+ symbol is defined locally or was forced to be local because
+ of a version file, we just want to emit a RELATIVE reloc.
+ The entry in the global offset table will already have been
+ initialized in the relocate_section function. */
+ if (info->shared
+ && SYMBOL_REFERENCES_LOCAL (info, h))
+ {
+ if (htab->fdpic_p)
+ {
+ asection *sec = h->root.u.def.section;
+ int dynindx
+ = elf_section_data (sec->output_section)->dynindx;
+
+ rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
+ rel.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_offset);
+ }
+ else
+ {
+ rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
+ rel.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+ }
+ else
+ {
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents
+ + eh->datalabel_got.offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
+ rel.r_addend = 0;
+ }
+
+ loc = srelgot->contents;
+ loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ }
+ }
+#endif
+
+ if (h->needs_copy)
{
asection *s;
Elf_Internal_Rela rel;
+ bfd_byte *loc;
/* This symbol needs a copy reloc. Set it up. */
&& (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak));
- s = bfd_get_section_by_name (h->root.u.def.section->owner,
- ".rela.bss");
+ s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
BFD_ASSERT (s != NULL);
rel.r_offset = (h->root.u.def.value
+ h->root.u.def.section->output_offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
rel.r_addend = 0;
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- ((Elf32_External_Rela *) s->contents
- + s->reloc_count));
- ++s->reloc_count;
+ loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
}
- /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
- if (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
+ _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
+ ".got" section. */
+ if (h == htab->root.hdynamic
+ || (!htab->vxworks_p && h == htab->root.hgot))
sym->st_shndx = SHN_ABS;
- return true;
+ return TRUE;
}
/* Finish up the dynamic sections. */
-static boolean
-sh_elf_finish_dynamic_sections (output_bfd, info)
- bfd *output_bfd;
- struct bfd_link_info *info;
+static bfd_boolean
+sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
{
- bfd *dynobj;
- asection *sgot;
+ struct elf_sh_link_hash_table *htab;
+ asection *sgotplt;
asection *sdyn;
- dynobj = elf_hash_table (info)->dynobj;
+ htab = sh_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
- sgot = bfd_get_section_by_name (dynobj, ".got.plt");
- BFD_ASSERT (sgot != NULL);
- sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+ sgotplt = htab->sgotplt;
+ sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
- if (elf_hash_table (info)->dynamic_sections_created)
+ if (htab->root.dynamic_sections_created)
{
asection *splt;
Elf32_External_Dyn *dyncon, *dynconend;
- BFD_ASSERT (sdyn != NULL);
+ BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
dyncon = (Elf32_External_Dyn *) sdyn->contents;
- dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
+ dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
for (; dyncon < dynconend; dyncon++)
{
Elf_Internal_Dyn dyn;
- const char *name;
asection *s;
+#ifdef INCLUDE_SHMEDIA
+ const char *name;
+#endif
- bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
+ bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
switch (dyn.d_tag)
{
default:
+ if (htab->vxworks_p
+ && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
+
+#ifdef INCLUDE_SHMEDIA
+ case DT_INIT:
+ name = info->init_function;
+ goto get_sym;
+
+ case DT_FINI:
+ name = info->fini_function;
+ get_sym:
+ if (dyn.d_un.d_val != 0)
+ {
+ struct elf_link_hash_entry *h;
+
+ h = elf_link_hash_lookup (&htab->root, name,
+ FALSE, FALSE, TRUE);
+ if (h != NULL && (h->other & STO_SH5_ISA32))
+ {
+ dyn.d_un.d_val |= 1;
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ }
+ }
break;
+#endif
case DT_PLTGOT:
- name = ".got";
- goto get_vma;
+ BFD_ASSERT (htab->root.hgot != NULL);
+ s = htab->root.hgot->root.u.def.section;
+ dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value
+ + s->output_section->vma + s->output_offset;
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
case DT_JMPREL:
- name = ".rela.plt";
- get_vma:
- s = bfd_get_section_by_name (output_bfd, name);
+ s = htab->srelplt->output_section;
BFD_ASSERT (s != NULL);
dyn.d_un.d_ptr = s->vma;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_PLTRELSZ:
- s = bfd_get_section_by_name (output_bfd, ".rela.plt");
+ s = htab->srelplt->output_section;
BFD_ASSERT (s != NULL);
- if (s->_cooked_size != 0)
- dyn.d_un.d_val = s->_cooked_size;
- else
- dyn.d_un.d_val = s->_raw_size;
+ dyn.d_un.d_val = s->size;
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
the linker script arranges for .rela.plt to follow all
other relocation sections, we don't have to worry
about changing the DT_RELA entry. */
- s = bfd_get_section_by_name (output_bfd, ".rela.plt");
- if (s != NULL)
+ if (htab->srelplt != NULL)
{
- if (s->_cooked_size != 0)
- dyn.d_un.d_val -= s->_cooked_size;
- else
- dyn.d_un.d_val -= s->_raw_size;
+ s = htab->srelplt->output_section;
+ dyn.d_un.d_val -= s->size;
}
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
}
/* Fill in the first entry in the procedure linkage table. */
- splt = bfd_get_section_by_name (dynobj, ".plt");
- if (splt && splt->_raw_size > 0)
+ splt = htab->splt;
+ if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
{
- if (info->shared)
+ unsigned int i;
+
+ memcpy (splt->contents,
+ htab->plt_info->plt0_entry,
+ htab->plt_info->plt0_entry_size);
+ for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++)
+ if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE)
+ install_plt_field (output_bfd, FALSE,
+ (sgotplt->output_section->vma
+ + sgotplt->output_offset
+ + (i * 4)),
+ (splt->contents
+ + htab->plt_info->plt0_got_fields[i]));
+
+ if (htab->vxworks_p)
{
- if (elf_sh_pic_plt_entry == NULL)
+ /* Finalize the .rela.plt.unloaded contents. */
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
+
+ /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
+ first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
+ loc = htab->srelplt2->contents;
+ rel.r_offset = (splt->output_section->vma
+ + splt->output_offset
+ + htab->plt_info->plt0_got_fields[2]);
+ rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
+ rel.r_addend = 8;
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ loc += sizeof (Elf32_External_Rela);
+
+ /* Fix up the remaining .rela.plt.unloaded relocations.
+ They may have the wrong symbol index for _G_O_T_ or
+ _P_L_T_ depending on the order in which symbols were
+ output. */
+ while (loc < htab->srelplt2->contents + htab->srelplt2->size)
{
- elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
- elf_sh_pic_plt_entry_be :
- elf_sh_pic_plt_entry_le);
+ /* The PLT entry's pointer to the .got.plt slot. */
+ bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
+ rel.r_info = ELF32_R_INFO (htab->root.hgot->indx,
+ R_SH_DIR32);
+ bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
+ loc += sizeof (Elf32_External_Rela);
+
+ /* The .got.plt slot's pointer to .plt. */
+ bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
+ rel.r_info = ELF32_R_INFO (htab->root.hplt->indx,
+ R_SH_DIR32);
+ bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
+ loc += sizeof (Elf32_External_Rela);
}
- memcpy (splt->contents, elf_sh_pic_plt_entry,
- elf_sh_sizeof_plt (info));
- }
- else
- {
- if (elf_sh_plt0_entry == NULL)
- {
- elf_sh_plt0_entry = (bfd_big_endian (output_bfd) ?
- elf_sh_plt0_entry_be :
- elf_sh_plt0_entry_le);
- }
- memcpy (splt->contents, elf_sh_plt0_entry, PLT_ENTRY_SIZE);
- bfd_put_32 (output_bfd,
- sgot->output_section->vma + sgot->output_offset + 4,
- splt->contents + elf_sh_plt0_gotid_offset (info));
- bfd_put_32 (output_bfd,
- sgot->output_section->vma + sgot->output_offset + 8,
- splt->contents + elf_sh_plt0_linker_offset (info));
}
/* UnixWare sets the entsize of .plt to 4, although that doesn't
}
/* Fill in the first three entries in the global offset table. */
- if (sgot->_raw_size > 0)
+ if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
{
if (sdyn == NULL)
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
else
bfd_put_32 (output_bfd,
sdyn->output_section->vma + sdyn->output_offset,
- sgot->contents);
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
+ sgotplt->contents);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8);
+ }
+
+ if (sgotplt && sgotplt->size > 0)
+ elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
+
+ /* At the very end of the .rofixup section is a pointer to the GOT. */
+ if (htab->fdpic_p && htab->srofixup != NULL)
+ {
+ struct elf_link_hash_entry *hgot = htab->root.hgot;
+ bfd_vma got_value = hgot->root.u.def.value
+ + hgot->root.u.def.section->output_section->vma
+ + hgot->root.u.def.section->output_offset;
+
+ sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value);
+
+ /* Make sure we allocated and generated the same number of fixups. */
+ BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size);
}
- elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
+ if (htab->srelfuncdesc)
+ BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
+ == htab->srelfuncdesc->size);
+
+ if (htab->srelgot)
+ BFD_ASSERT (htab->srelgot->reloc_count * sizeof (Elf32_External_Rela)
+ == htab->srelgot->size);
- return true;
+ return TRUE;
}
static enum elf_reloc_type_class
-sh_elf_reloc_type_class (type)
- int type;
+sh_elf_reloc_type_class (const Elf_Internal_Rela *rela)
{
- switch (type)
+ switch ((int) ELF32_R_TYPE (rela->r_info))
{
case R_SH_RELATIVE:
return reloc_class_relative;
}
}
-#ifndef ELF_ARCH
+#if !defined SH_TARGET_ALREADY_DEFINED
+/* Support for Linux core dump NOTE sections. */
+
+static bfd_boolean
+elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
+{
+ int offset;
+ unsigned int size;
+
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 168: /* Linux/SH */
+ /* pr_cursig */
+ elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+
+ /* pr_pid */
+ elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
+
+ /* pr_reg */
+ offset = 72;
+ size = 92;
+
+ break;
+ }
+
+ /* Make a ".reg/999" section. */
+ return _bfd_elfcore_make_pseudosection (abfd, ".reg",
+ size, note->descpos + offset);
+}
+
+static bfd_boolean
+elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
+{
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 124: /* Linux/SH elf_prpsinfo */
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ }
+
+ /* Note that for some reason, a spurious space is tacked
+ onto the end of the args in some (at least one anyway)
+ implementations, so strip it off if it exists. */
+
+ {
+ char *command = elf_tdata (abfd)->core_command;
+ int n = strlen (command);
+
+ if (0 < n && command[n - 1] == ' ')
+ command[n - 1] = '\0';
+ }
+
+ return TRUE;
+}
+#endif /* not SH_TARGET_ALREADY_DEFINED */
+
+
+/* Return address for Ith PLT stub in section PLT, for relocation REL
+ or (bfd_vma) -1 if it should not be included. */
+
+static bfd_vma
+sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
+ const arelent *rel ATTRIBUTE_UNUSED)
+{
+ const struct elf_sh_plt_info *plt_info;
+
+ plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0);
+ return plt->vma + get_plt_offset (plt_info, i);
+}
+
+/* Decide whether to attempt to turn absptr or lsda encodings in
+ shared libraries into pcrel within the given input section. */
+
+static bfd_boolean
+sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
+ asection *eh_frame_section ATTRIBUTE_UNUSED)
+{
+ struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
+
+ /* We can't use PC-relative encodings in FDPIC binaries, in general. */
+ if (htab->fdpic_p)
+ return FALSE;
+
+ return TRUE;
+}
+
+/* Adjust the contents of an eh_frame_hdr section before they're output. */
+
+static bfd_byte
+sh_elf_encode_eh_address (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *osec, bfd_vma offset,
+ asection *loc_sec, bfd_vma loc_offset,
+ bfd_vma *encoded)
+{
+ struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
+ struct elf_link_hash_entry *h;
+
+ if (!htab->fdpic_p)
+ return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec,
+ loc_offset, encoded);
+
+ h = htab->root.hgot;
+ BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
+
+ if (! h || (sh_elf_osec_to_segment (abfd, osec)
+ == sh_elf_osec_to_segment (abfd, loc_sec->output_section)))
+ return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
+ loc_sec, loc_offset, encoded);
+
+ BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec)
+ == (sh_elf_osec_to_segment
+ (abfd, h->root.u.def.section->output_section)));
+
+ *encoded = osec->vma + offset
+ - (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+
+ return DW_EH_PE_datarel | DW_EH_PE_sdata4;
+}
+
+#if !defined SH_TARGET_ALREADY_DEFINED
#define TARGET_BIG_SYM bfd_elf32_sh_vec
#define TARGET_BIG_NAME "elf32-sh"
#define TARGET_LITTLE_SYM bfd_elf32_shl_vec
#define TARGET_LITTLE_NAME "elf32-shl"
+#endif
+
#define ELF_ARCH bfd_arch_sh
+#define ELF_TARGET_ID SH_ELF_DATA
#define ELF_MACHINE_CODE EM_SH
-#define ELF_MAXPAGESIZE 128
+#ifdef __QNXTARGET__
+#define ELF_MAXPAGESIZE 0x1000
+#else
+#define ELF_MAXPAGESIZE 0x80
+#endif
#define elf_symbol_leading_char '_'
-#endif /* ELF_ARCH */
#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup \
+ sh_elf_reloc_name_lookup
#define elf_info_to_howto sh_elf_info_to_howto
#define bfd_elf32_bfd_relax_section sh_elf_relax_section
#define elf_backend_relocate_section sh_elf_relocate_section
#define bfd_elf32_bfd_get_relocated_section_contents \
sh_elf_get_relocated_section_contents
-#define elf_backend_object_p sh_elf_set_mach_from_flags
+#define bfd_elf32_mkobject sh_elf_mkobject
+#define elf_backend_object_p sh_elf_object_p
#define bfd_elf32_bfd_set_private_bfd_flags \
sh_elf_set_private_flags
#define bfd_elf32_bfd_copy_private_bfd_data \
#define bfd_elf32_bfd_merge_private_bfd_data \
sh_elf_merge_private_data
-#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
-#define elf_backend_check_relocs sh_elf_check_relocs
-
-#define elf_backend_can_gc_sections 1
+#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
+#define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
+#define elf_backend_check_relocs sh_elf_check_relocs
+#define elf_backend_copy_indirect_symbol \
+ sh_elf_copy_indirect_symbol
#define elf_backend_create_dynamic_sections \
sh_elf_create_dynamic_sections
#define bfd_elf32_bfd_link_hash_table_create \
sh_elf_link_hash_table_create
#define elf_backend_adjust_dynamic_symbol \
sh_elf_adjust_dynamic_symbol
+#define elf_backend_always_size_sections \
+ sh_elf_always_size_sections
#define elf_backend_size_dynamic_sections \
sh_elf_size_dynamic_sections
+#define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
#define elf_backend_finish_dynamic_symbol \
sh_elf_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
sh_elf_finish_dynamic_sections
#define elf_backend_reloc_type_class sh_elf_reloc_type_class
-
+#define elf_backend_plt_sym_val sh_elf_plt_sym_val
+#define elf_backend_can_make_relative_eh_frame \
+ sh_elf_use_relative_eh_frame
+#define elf_backend_can_make_lsda_relative_eh_frame \
+ sh_elf_use_relative_eh_frame
+#define elf_backend_encode_eh_address \
+ sh_elf_encode_eh_address
+
+#define elf_backend_stack_align 8
+#define elf_backend_can_gc_sections 1
+#define elf_backend_can_refcount 1
#define elf_backend_want_got_plt 1
#define elf_backend_plt_readonly 1
#define elf_backend_want_plt_sym 0
#define elf_backend_got_header_size 12
-#define elf_backend_plt_header_size PLT_ENTRY_SIZE
+
+#if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
+
#include "elf32-target.h"
+
+/* NetBSD support. */
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM bfd_elf32_shnbsd_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-sh-nbsd"
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf32_shlnbsd_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-shl-nbsd"
+#undef ELF_MAXPAGESIZE
+#define ELF_MAXPAGESIZE 0x10000
+#undef ELF_COMMONPAGESIZE
+#undef elf_symbol_leading_char
+#define elf_symbol_leading_char 0
+#undef elf32_bed
+#define elf32_bed elf32_sh_nbsd_bed
+
+#include "elf32-target.h"
+
+
+/* Linux support. */
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM bfd_elf32_shblin_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-shbig-linux"
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf32_shlin_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-sh-linux"
+#undef ELF_COMMONPAGESIZE
+#define ELF_COMMONPAGESIZE 0x1000
+
+#undef elf_backend_grok_prstatus
+#define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
+#undef elf_backend_grok_psinfo
+#define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
+#undef elf32_bed
+#define elf32_bed elf32_sh_lin_bed
+
+#include "elf32-target.h"
+
+
+/* FDPIC support. */
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM bfd_elf32_shbfd_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-shbig-fdpic"
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf32_shfd_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-sh-fdpic"
+
+#undef elf32_bed
+#define elf32_bed elf32_sh_fd_bed
+
+#include "elf32-target.h"
+
+#undef elf_backend_modify_program_headers
+
+/* VxWorks support. */
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM bfd_elf32_shvxworks_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-sh-vxworks"
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf32_shlvxworks_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-shl-vxworks"
+#undef elf32_bed
+#define elf32_bed elf32_sh_vxworks_bed
+
+#undef elf_backend_want_plt_sym
+#define elf_backend_want_plt_sym 1
+#undef elf_symbol_leading_char
+#define elf_symbol_leading_char '_'
+#define elf_backend_want_got_underscore 1
+#undef elf_backend_grok_prstatus
+#undef elf_backend_grok_psinfo
+#undef elf_backend_add_symbol_hook
+#define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
+#undef elf_backend_link_output_symbol_hook
+#define elf_backend_link_output_symbol_hook \
+ elf_vxworks_link_output_symbol_hook
+#undef elf_backend_emit_relocs
+#define elf_backend_emit_relocs elf_vxworks_emit_relocs
+#undef elf_backend_final_write_processing
+#define elf_backend_final_write_processing \
+ elf_vxworks_final_write_processing
+#undef ELF_MAXPAGESIZE
+#define ELF_MAXPAGESIZE 0x1000
+#undef ELF_COMMONPAGESIZE
+
+#include "elf32-target.h"
+
+#endif /* neither INCLUDE_SHMEDIA nor SH_TARGET_ALREADY_DEFINED */
projects / deliverable / binutils-gdb.git / blobdiff