diff options
Diffstat (limited to 'bfd/elf32-sh.c')
| -rw-r--r-- | bfd/elf32-sh.c | 4481 |
1 files changed, 0 insertions, 4481 deletions
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c deleted file mode 100644 index 9869704b49f..00000000000 --- a/bfd/elf32-sh.c +++ /dev/null @@ -1,4481 +0,0 @@ -/* Hitachi SH specific support for 32-bit ELF - Copyright 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - Contributed by Ian Lance Taylor, Cygnus Support. - -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 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. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/sh.h" - -static bfd_reloc_status_type sh_elf_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, 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 *)); - -/* The name of the dynamic interpreter. This is put in the .interp - section. */ - -#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" - -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 */ - -}; - -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; -{ - 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) - return bfd_reloc_outofrange; - - /* We require the start and end relocations to be processed consecutively - - although we allow then to be processed forwards or backwards. */ - if (! last_addr) - { - last_addr = addr; - last_symbol_section = symbol_section; - return bfd_reloc_ok; - } - if (last_addr != addr) - abort (); - last_addr = 0; - - if (! symbol_section || last_symbol_section != symbol_section || end < start) - return bfd_reloc_outofrange; - - /* Get the symbol_section contents. */ - if (symbol_section != input_section) - { - if (elf_section_data (symbol_section)->this_hdr.contents != NULL) - contents = elf_section_data (symbol_section)->this_hdr.contents; - else - { - free_contents = contents - = (bfd_byte *) bfd_malloc (symbol_section->_raw_size); - if (contents == NULL) - return bfd_reloc_outofrange; - if (! bfd_get_section_contents (input_bfd, symbol_section, contents, - (file_ptr) 0, - symbol_section->_raw_size)) - { - free (contents); - return bfd_reloc_outofrange; - } - } - } -#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800) - start_ptr = contents + start; - for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;) - { - for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);) - ptr -= 2; - ptr += 2; - diff = (last_ptr - ptr) >> 1; - cum_diff += diff & 1; - cum_diff += diff; - } - /* Calculate the start / end values to load into rs / re minus four - - so that will cancel out the four we would otherwise have to add to - addr to get the value to subtract in order to get relative addressing. */ - if (cum_diff >= 0) - { - start -= 4; - end = (ptr + cum_diff * 2) - contents; - } - else - { - bfd_vma start0 = start - 4; - - while (start0 && IS_PPI (contents + start0)) - start0 -= 2; - start0 = start - 2 - ((start - start0) & 2); - start = start0 - cum_diff - 2; - end = start0; - } - - if (free_contents) - free (free_contents); - - insn = bfd_get_16 (input_bfd, contents + addr); - - x = (insn & 0x200 ? end : start) - addr; - if (input_section != symbol_section) - x += ((symbol_section->output_section->vma + symbol_section->output_offset) - - (input_section->output_section->vma - + input_section->output_offset)); - x >>= 1; - if (x < -128 || x > 127) - return bfd_reloc_overflow; - - x = (insn & ~0xff) | (x & 0xff); - bfd_put_16 (input_bfd, x, contents + addr); - - return bfd_reloc_ok; -} - -/* This function is used for normal relocs. This used to be like the COFF - 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; -{ - unsigned long insn; - bfd_vma sym_value; - enum elf_sh_reloc_type r_type; - bfd_vma addr = reloc_entry->address; - bfd_byte *hit_data = addr + (bfd_byte *) data; - - r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; - - if (output_bfd != NULL) - { - /* Partial linking--do nothing. */ - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* Almost all relocs have to do with relaxing. If any work must be - done for them, it has been done in sh_relax_section. */ - if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0) - return bfd_reloc_ok; - - if (symbol_in != NULL - && bfd_is_und_section (symbol_in->section)) - return bfd_reloc_undefined; - - if (bfd_is_com_section (symbol_in->section)) - sym_value = 0; - else - sym_value = (symbol_in->value + - symbol_in->section->output_section->vma + - symbol_in->section->output_offset); - - switch (r_type) - { - case R_SH_DIR32: - insn = bfd_get_32 (abfd, hit_data); - insn += sym_value + reloc_entry->addend; - bfd_put_32 (abfd, insn, hit_data); - break; - case R_SH_IND12W: - insn = bfd_get_16 (abfd, hit_data); - sym_value += reloc_entry->addend; - sym_value -= (input_section->output_section->vma - + input_section->output_offset - + addr - + 4); - sym_value += (insn & 0xfff) << 1; - if (insn & 0x800) - sym_value -= 0x1000; - insn = (insn & 0xf000) | (sym_value & 0xfff); - bfd_put_16 (abfd, insn, hit_data); - if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000) - return bfd_reloc_overflow; - break; - default: - abort (); - break; - } - - return bfd_reloc_ok; -} - -/* This function is used for relocs which are only used for relaxing, - 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; -{ - if (output_bfd != NULL) - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; -} - -/* This structure is used to map BFD reloc codes to SH ELF relocs. */ - -struct elf_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -/* An array mapping BFD reloc codes to SH ELF relocs. */ - -static const struct elf_reloc_map sh_reloc_map[] = -{ - { BFD_RELOC_NONE, R_SH_NONE }, - { BFD_RELOC_32, R_SH_DIR32 }, - { BFD_RELOC_CTOR, R_SH_DIR32 }, - { BFD_RELOC_32_PCREL, R_SH_REL32 }, - { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN }, - { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W }, - { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ }, - { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL }, - { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, - { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, - { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, - { BFD_RELOC_SH_USES, R_SH_USES }, - { BFD_RELOC_SH_COUNT, R_SH_COUNT }, - { BFD_RELOC_SH_ALIGN, R_SH_ALIGN }, - { BFD_RELOC_SH_CODE, R_SH_CODE }, - { BFD_RELOC_SH_DATA, R_SH_DATA }, - { BFD_RELOC_SH_LABEL, R_SH_LABEL }, - { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, - { 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_32_GOT_PCREL, R_SH_GOT32 }, - { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 }, - { BFD_RELOC_SH_COPY, R_SH_COPY }, - { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT }, - { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT }, - { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE }, - { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF }, - { BFD_RELOC_SH_GOTPC, R_SH_GOTPC }, -}; - -/* Given a BFD reloc code, return the howto structure for the - 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; -{ - 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 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; -{ - unsigned int r; - - r = ELF32_R_TYPE (dst->r_info); - - 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); - - cache_ptr->howto = &sh_elf_howto_table[r]; -} - -/* This function handles relaxing for SH ELF. See the corresponding - function in coff-sh.c for a description of what this does. FIXME: - There is a lot of duplication here between this code and the COFF - specific code. The format of relocs and symbols is wound deeply - into this code, but it would still be better if the duplication - could be eliminated somehow. Note in particular that although both - functions use symbols like R_SH_CODE, those symbols have different - 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; -{ - Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Rela *internal_relocs; - Elf_Internal_Rela *free_relocs = NULL; - 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; - - *again = false; - - if (link_info->relocateable - || (sec->flags & SEC_RELOC) == 0 - || sec->reloc_count == 0) - 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; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - - internal_relocs = (_bfd_elf32_link_read_relocs - (abfd, sec, (PTR) 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; - - irelend = internal_relocs + sec->reloc_count; - for (irel = internal_relocs; irel < irelend; irel++) - { - bfd_vma laddr, paddr, symval; - unsigned short insn; - Elf_Internal_Rela *irelfn, *irelscan, *irelcount; - bfd_signed_vma foff; - - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE) - have_code = true; - - if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES) - continue; - - /* Get the section contents. */ - if (contents == NULL) - { - if (elf_section_data (sec)->this_hdr.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)) - 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. */ - laddr = irel->r_offset + 4 + irel->r_addend; - if (laddr >= sec->_raw_size) - { - (*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"), - bfd_get_filename (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. */ - if ((insn & 0xf000) != 0xd000) - { - ((*_bfd_error_handler) - (_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"), - bfd_get_filename (abfd), (unsigned long) irel->r_offset, insn)); - continue; - } - - /* Get the address from which the register is being loaded. The - displacement in the mov.l instruction is quadrupled. It is a - displacement from four bytes after the movl instruction, but, - before adding in the PC address, two least significant bits - of the PC are cleared. We assume that the section is aligned - on a four byte boundary. */ - paddr = insn & 0xff; - paddr *= 4; - paddr += (laddr + 4) & ~3; - if (paddr >= sec->_raw_size) - { - ((*_bfd_error_handler) - (_("%s: 0x%lx: warning: bad R_SH_USES load offset"), - bfd_get_filename (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. */ - for (irelfn = internal_relocs; irelfn < irelend; irelfn++) - if (irelfn->r_offset == paddr - && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32) - break; - if (irelfn >= irelend) - { - ((*_bfd_error_handler) - (_("%s: 0x%lx: warning: could not find expected reloc"), - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - /* Read this BFD's symbols if we haven't done so already. */ - if (extsyms == NULL) - { - 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_read (extsyms, 1, symtab_hdr->sh_size, abfd) - != symtab_hdr->sh_size)) - 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); - - if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec)) - { - ((*_bfd_error_handler) - (_("%s: 0x%lx: warning: symbol in unexpected section"), - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - symval = (isym.st_value - + sec->output_section->vma - + sec->output_offset); - } - else - { - unsigned long indx; - struct elf_link_hash_entry *h; - - indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info; - h = elf_sym_hashes (abfd)[indx]; - BFD_ASSERT (h != NULL); - if (h->root.type != bfd_link_hash_defined - && 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. */ - continue; - } - - symval = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - } - - symval += bfd_get_32 (abfd, contents + paddr); - - /* See if this function call can be shortened. */ - foff = (symval - - (irel->r_offset - + sec->output_section->vma - + sec->output_offset - + 4)); - if (foff < -0x1000 || foff >= 0x1000) - { - /* After all that work, we can't shorten this function call. */ - continue; - } - - /* Shorten the function call. */ - - /* For simplicity of coding, we are going to modify the section - contents, the section relocs, and the BFD symbol table. We - must tell the rest of the code not to free up this - information. It would be possible to instead create a table - of changes which have to be made, as is done in coff-mips.c; - that would be more work, but would require less memory when - 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; - - /* 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. */ - 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, - 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, 0xb000, contents + irel->r_offset); - } - - /* See if there is another R_SH_USES reloc referring to the same - 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) - break; - if (irelscan < irelend) - { - /* Some other function call depends upon this register load, - and we have not yet converted that function call. - Indeed, we may never be able to convert it. There is - nothing else we can do at this point. */ - continue; - } - - /* 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. */ - for (irelcount = internal_relocs; irelcount < irelend; irelcount++) - if (irelcount->r_offset == paddr - && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT) - break; - - /* Delete the register load. */ - if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2)) - 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; - - /* 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_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - /* The number of uses is stored in the r_addend field. We've - just deleted one. */ - if (irelcount->r_addend == 0) - { - ((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"), - bfd_get_filename (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. */ - if (irelcount->r_addend == 0) - { - if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4)) - goto error_return; - } - - /* We've done all we can with that function call. */ - } - - /* Look for load and store instructions that we can align on four - byte boundaries. */ - if (have_code) - { - boolean swapped; - - /* Get the section contents. */ - if (contents == NULL) - { - if (elf_section_data (sec)->this_hdr.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)) - goto error_return; - } - } - - if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents, - &swapped)) - 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; - } - } - - if (free_relocs != NULL) - { - free (free_relocs); - free_relocs = NULL; - } - - if (free_contents != NULL) - { - if (! link_info->keep_memory) - free (free_contents); - else - { - /* Cache the section contents for elf_link_input_bfd. */ - elf_section_data (sec)->this_hdr.contents = contents; - } - free_contents = NULL; - } - - if (free_extsyms != NULL) - { - if (! link_info->keep_memory) - free (free_extsyms); - else - { - /* Cache the symbols for elf_link_input_bfd. */ - symtab_hdr->contents = extsyms; - } - free_extsyms = NULL; - } - - 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; -} - -/* 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; -{ - Elf_Internal_Shdr *symtab_hdr; - Elf32_External_Sym *extsyms; - int shndx, index; - 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; - asection *o; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - extsyms = (Elf32_External_Sym *) symtab_hdr->contents; - - shndx = _bfd_elf_section_from_bfd_section (abfd, sec); - - contents = elf_section_data (sec)->this_hdr.contents; - - /* The deletion must stop at the next ALIGN reloc for an aligment - power larger than the number of bytes we are deleting. */ - - irelalign = NULL; - toaddr = sec->_cooked_size; - - irel = elf_section_data (sec)->relocs; - irelend = irel + sec->reloc_count; - for (; irel < irelend; irel++) - { - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN - && irel->r_offset > addr - && count < (1 << irel->r_addend)) - { - irelalign = irel; - toaddr = irel->r_offset; - break; - } - } - - /* Actually delete the bytes. */ - memmove (contents + addr, contents + addr + count, toaddr - addr - count); - if (irelalign == NULL) - sec->_cooked_size -= count; - else - { - int i; - -#define NOP_OPCODE (0x0009) - - BFD_ASSERT ((count & 1) == 0); - for (i = 0; i < count; i += 2) - bfd_put_16 (abfd, NOP_OPCODE, contents + toaddr - count + i); - } - - /* Adjust all the relocs. */ - for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) - { - 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; - - /* Get the new reloc address. */ - nraddr = irel->r_offset; - if ((irel->r_offset > addr - && irel->r_offset < toaddr) - || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN - && irel->r_offset == toaddr)) - nraddr -= count; - - /* See if this reloc was for the bytes we have deleted, in which - case we no longer care about it. Don't delete relocs which - represent addresses, though. */ - if (irel->r_offset >= addr - && irel->r_offset < addr + count - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL) - irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), - (int) R_SH_NONE); - - /* If this is a PC relative reloc, see if the range it covers - includes the bytes we have deleted. */ - switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) - { - default: - break; - - case R_SH_DIR8WPN: - case R_SH_IND12W: - case R_SH_DIR8WPZ: - case R_SH_DIR8WPL: - start = irel->r_offset; - insn = bfd_get_16 (abfd, contents + nraddr); - break; - } - - switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) - { - default: - start = stop = addr; - break; - - 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. */ - 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)) - { - 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); - } - } - start = stop = addr; - break; - - case R_SH_DIR8WPN: - off = insn & 0xff; - if (off & 0x80) - off -= 0x100; - stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); - break; - - case R_SH_IND12W: - if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info) - start = stop = addr; - else - { - off = insn & 0xfff; - if (off & 0x800) - off -= 0x1000; - stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); - } - break; - - case R_SH_DIR8WPZ: - off = insn & 0xff; - stop = start + 4 + off * 2; - break; - - case R_SH_DIR8WPL: - off = insn & 0xff; - stop = (start & ~(bfd_vma) 3) + 4 + off * 4; - break; - - case R_SH_SWITCH8: - case R_SH_SWITCH16: - case R_SH_SWITCH32: - /* These relocs types represent - .word L2-L1 - The r_addend field holds the difference between the reloc - address and L1. That is the start of the reloc, and - adding in the contents gives us the top. We must adjust - both the r_offset field and the section contents. - N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset, - and the elf bfd r_offset is called r_vaddr. */ - - stop = irel->r_offset; - start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend); - - if (start > addr - && start < toaddr - && (stop <= addr || stop >= toaddr)) - irel->r_addend += count; - else if (stop > addr - && stop < toaddr - && (start <= addr || start >= toaddr)) - irel->r_addend -= count; - - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16) - voff = bfd_get_signed_16 (abfd, contents + nraddr); - else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8) - voff = bfd_get_8 (abfd, contents + nraddr); - else - voff = bfd_get_signed_32 (abfd, contents + nraddr); - stop = (bfd_vma) ((bfd_signed_vma) start + voff); - - break; - - case R_SH_USES: - start = irel->r_offset; - stop = (bfd_vma) ((bfd_signed_vma) start - + (long) irel->r_addend - + 4); - break; - } - - if (start > addr - && start < toaddr - && (stop <= addr || stop >= toaddr)) - adjust = count; - else if (stop > addr - && stop < toaddr - && (start <= addr || start >= toaddr)) - adjust = - count; - else - adjust = 0; - - if (adjust != 0) - { - oinsn = insn; - overflow = false; - switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) - { - default: - abort (); - break; - - case R_SH_DIR8WPN: - case R_SH_DIR8WPZ: - insn += adjust / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_IND12W: - insn += adjust / 2; - if ((oinsn & 0xf000) != (insn & 0xf000)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_DIR8WPL: - BFD_ASSERT (adjust == count || count >= 4); - if (count >= 4) - insn += adjust / 4; - else - { - if ((irel->r_offset & 3) == 0) - ++insn; - } - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_SWITCH8: - voff += adjust; - if (voff < 0 || voff >= 0xff) - overflow = true; - bfd_put_8 (abfd, voff, contents + nraddr); - break; - - case R_SH_SWITCH16: - voff += adjust; - if (voff < - 0x8000 || voff >= 0x8000) - overflow = true; - bfd_put_signed_16 (abfd, voff, contents + nraddr); - break; - - case R_SH_SWITCH32: - voff += adjust; - bfd_put_signed_32 (abfd, voff, contents + nraddr); - break; - - case R_SH_USES: - irel->r_addend += adjust; - break; - } - - if (overflow) - { - ((*_bfd_error_handler) - (_("%s: 0x%lx: fatal: reloc overflow while relaxing"), - bfd_get_filename (abfd), (unsigned long) irel->r_offset)); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - - irel->r_offset = nraddr; - } - - /* Look through all the other sections. If there contain any IMM32 - relocs against internal symbols which we are not going to adjust - below, we may need to adjust the addends. */ - for (o = abfd->sections; o != NULL; o = o->next) - { - Elf_Internal_Rela *internal_relocs; - Elf_Internal_Rela *irelscan, *irelscanend; - bfd_byte *ocontents; - - if (o == sec - || (o->flags & SEC_RELOC) == 0 - || o->reloc_count == 0) - 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)); - if (internal_relocs == NULL) - 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) - { - bfd_vma start, stop; - bfd_signed_vma voff; - - if (ocontents == NULL) - { - if (elf_section_data (o)->this_hdr.contents != NULL) - ocontents = elf_section_data (o)->this_hdr.contents; - 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; - elf_section_data (o)->this_hdr.contents = ocontents; - } - } - - stop = irelscan->r_offset; - start - = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend); - - /* STOP is in a different section, so it won't change. */ - if (start > addr && start < toaddr) - irelscan->r_addend += count; - - voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset); - stop = (bfd_vma) ((bfd_signed_vma) start + voff); - - if (start > addr - && start < toaddr - && (stop <= addr || stop >= toaddr)) - bfd_put_signed_32 (abfd, voff + count, - ocontents + irelscan->r_offset); - else if (stop > addr - && stop < toaddr - && (start <= addr || start >= toaddr)) - bfd_put_signed_32 (abfd, voff - count, - ocontents + irelscan->r_offset); - } - - if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32) - continue; - - 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)) - { - bfd_vma val; - - if (ocontents == NULL) - { - if (elf_section_data (o)->this_hdr.contents != NULL) - ocontents = elf_section_data (o)->this_hdr.contents; - 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; - elf_section_data (o)->this_hdr.contents = ocontents; - } - } - - val = bfd_get_32 (abfd, ocontents + irelscan->r_offset); - val += sym.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++) - { - 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); - } - } - - /* 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++) - { - 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) - { - (sym_hash)->root.u.def.value -= count; - } - } - - /* See if we can move the ALIGN reloc forward. We have adjusted - r_offset for it already. */ - if (irelalign != NULL) - { - bfd_vma alignto, alignaddr; - - alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend); - alignaddr = BFD_ALIGN (irelalign->r_offset, - 1 << irelalign->r_addend); - if (alignto != alignaddr) - { - /* Tail recursion. */ - return sh_elf_relax_delete_bytes (abfd, sec, alignaddr, - alignto - alignaddr); - } - } - - 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; -{ - Elf_Internal_Rela *irel, *irelend; - bfd_vma *labels = NULL; - bfd_vma *label, *label_end; - - *pswapped = false; - - irelend = internal_relocs + sec->reloc_count; - - /* Get all the addresses with labels on them. */ - labels = (bfd_vma *) bfd_malloc (sec->reloc_count * sizeof (bfd_vma)); - if (labels == NULL) - goto error_return; - label_end = labels; - for (irel = internal_relocs; irel < irelend; irel++) - { - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL) - { - *label_end = irel->r_offset; - ++label_end; - } - } - - /* Note that the assembler currently always outputs relocs in - address order. If that ever changes, this code will need to sort - the label values and the relocs. */ - - label = labels; - - for (irel = internal_relocs; irel < irelend; irel++) - { - bfd_vma start, stop; - - if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE) - continue; - - start = irel->r_offset; - - for (irel++; irel < irelend; irel++) - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA) - break; - if (irel < irelend) - stop = irel->r_offset; - else - stop = sec->_cooked_size; - - if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns, - (PTR) internal_relocs, &label, - label_end, start, stop, pswapped)) - goto error_return; - } - - free (labels); - - return true; - - error_return: - if (labels != NULL) - free (labels); - return false; -} - -/* 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; -{ - Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs; - unsigned short i1, i2; - Elf_Internal_Rela *irel, *irelend; - - /* Swap the instructions themselves. */ - i1 = bfd_get_16 (abfd, contents + addr); - i2 = bfd_get_16 (abfd, contents + addr + 2); - bfd_put_16 (abfd, i2, contents + addr); - bfd_put_16 (abfd, i1, contents + addr + 2); - - /* Adjust all reloc addresses. */ - irelend = internal_relocs + sec->reloc_count; - for (irel = internal_relocs; irel < irelend; irel++) - { - enum elf_sh_reloc_type type; - 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. */ - type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info); - if (type == R_SH_ALIGN - || type == R_SH_CODE - || type == R_SH_DATA - || type == R_SH_LABEL) - 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). */ - if (type == R_SH_USES) - { - bfd_vma off; - - off = irel->r_offset + 4 + irel->r_addend; - if (off == addr) - irel->r_offset += 2; - else if (off == addr + 2) - irel->r_offset -= 2; - } - - if (irel->r_offset == addr) - { - irel->r_offset += 2; - add = -2; - } - else if (irel->r_offset == addr + 2) - { - irel->r_offset -= 2; - add = 2; - } - else - add = 0; - - if (add != 0) - { - bfd_byte *loc; - unsigned short insn, oinsn; - boolean overflow; - - loc = contents + irel->r_offset; - overflow = false; - switch (type) - { - default: - break; - - case R_SH_DIR8WPN: - case R_SH_DIR8WPZ: - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - break; - - case R_SH_IND12W: - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xf000) != (insn & 0xf000)) - overflow = true; - bfd_put_16 (abfd, 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. */ - if ((addr & 3) != 0) - { - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - } - - break; - } - - if (overflow) - { - ((*_bfd_error_handler) - (_("%s: 0x%lx: fatal: reloc overflow while relaxing"), - bfd_get_filename (abfd), (unsigned long) irel->r_offset)); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - } - - return true; -} - -/* The size in bytes of an entry in the procedure linkage table. */ - -#define 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 - 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] = -{ - 0xd0, 0x05, /* mov.l 2f,r0 */ - 0x60, 0x02, /* mov.l @r0,r0 */ - 0x2f, 0x06, /* mov.l r0,@-r15 */ - 0xd0, 0x03, /* mov.l 1f,r0 */ - 0x60, 0x02, /* mov.l @r0,r0 */ - 0x40, 0x2b, /* jmp @r0 */ - 0x60, 0xf6, /* mov.l @r15+,r0 */ - 0x00, 0x09, /* nop */ - 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. */ -}; - -static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] = -{ - 0x05, 0xd0, /* mov.l 2f,r0 */ - 0x02, 0x60, /* mov.l @r0,r0 */ - 0x06, 0x2f, /* mov.l r0,@-r15 */ - 0x03, 0xd0, /* mov.l 1f,r0 */ - 0x02, 0x60, /* mov.l @r0,r0 */ - 0x2b, 0x40, /* jmp @r0 */ - 0xf6, 0x60, /* mov.l @r15+,r0 */ - 0x09, 0x00, /* nop */ - 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. */ -}; - -/* Sebsequent entries in an absolute procedure linkage table look like - this. */ - -static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] = -{ - 0xd0, 0x04, /* mov.l 1f,r0 */ - 0x60, 0x02, /* mov.l @r0,r0 */ - 0xd1, 0x02, /* mov.l 0f,r1 */ - 0x40, 0x2b, /* jmp @r0 */ - 0x60, 0x13, /* mov r1,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. */ -}; - -static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] = -{ - 0x04, 0xd0, /* mov.l 1f,r0 */ - 0x02, 0x60, /* mov.l @r0,r0 */ - 0x02, 0xd1, /* mov.l 0f,r1 */ - 0x2b, 0x40, /* jmp @r0 */ - 0x13, 0x60, /* mov r1,r0 */ - 0x03, 0xd1, /* mov.l 2f,r1 */ - 0x2b, 0x40, /* jmp @r0 */ - 0x09, 0x00, /* 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. */ -}; - -/* Entries in a PIC procedure linkage table look like this. */ - -static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] = -{ - 0xd0, 0x04, /* mov.l 1f,r0 */ - 0x00, 0xce, /* mov.l @(r0,r12),r0 */ - 0x40, 0x2b, /* jmp @r0 */ - 0x00, 0x09, /* nop */ - 0x50, 0xc2, /* mov.l @(8,r12),r0 */ - 0xd1, 0x03, /* mov.l 2f,r1 */ - 0x40, 0x2b, /* jmp @r0 */ - 0x50, 0xc1, /* mov.l @(4,r12),r0 */ - 0x00, 0x09, /* nop */ - 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. */ -}; - -static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] = -{ - 0x04, 0xd0, /* mov.l 1f,r0 */ - 0xce, 0x00, /* mov.l @(r0,r12),r0 */ - 0x2b, 0x40, /* jmp @r0 */ - 0x09, 0x00, /* nop */ - 0xc2, 0x50, /* mov.l @(8,r12),r0 */ - 0x03, 0xd1, /* mov.l 2f,r1 */ - 0x2b, 0x40, /* jmp @r0 */ - 0xc1, 0x50, /* mov.l @(4,r12),r0 */ - 0x09, 0x00, /* nop */ - 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. */ -}; - -#else /* These are the old style PLT entries. */ -static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_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 */ - 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. */ -}; - -static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_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 */ - 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. */ -}; - -/* Sebsequent entries in an absolute procedure linkage table look like - this. */ - -static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] = -{ - 0xd0, 0x04, /* mov.l 1f,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. */ -}; - -static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] = -{ - 0x04, 0xd0, /* mov.l 1f,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. */ -}; - -/* Entries in a PIC procedure linkage table look like this. */ - -static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] = -{ - 0xd0, 0x04, /* mov.l 1f,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. */ -}; - -static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] = -{ - 0x04, 0xd0, /* mov.l 1f,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. */ -}; -#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; - -/* Return size of a PLT entry. */ -#define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE - -/* Return offset of the PLT0 address in an absolute PLT entry. */ -#define elf_sh_plt_plt0_offset(info) 16 - -/* Return offset of the linker in PLT0 entry. */ -#define elf_sh_plt0_linker_offset(info) 20 - -/* Return offset of the GOT id in PLT0 entry. */ -#define elf_sh_plt0_gotid_offset(info) 24 - -/* Return offset of the tempoline in PLT entry */ -#define elf_sh_plt_temp_offset(info) 8 - -/* Return offset of the symbol in PLT entry. */ -#define elf_sh_plt_symbol_offset(info) 20 - -/* Return offset of the relocation in PLT entry. */ -#define elf_sh_plt_reloc_offset(info) 24 - -/* 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. */ - -/* This structure keeps track of the number of PC relative relocs we - have copied for a given symbol. */ - -struct elf_sh_pcrel_relocs_copied -{ - /* 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; -}; - -/* sh ELF linker hash entry. */ - -struct elf_sh_link_hash_entry -{ - struct elf_link_hash_entry root; - - /* Number of PC relative relocs copied for this symbol. */ - struct elf_sh_pcrel_relocs_copied *pcrel_relocs_copied; -}; - -/* sh ELF linker hash table. */ - -struct elf_sh_link_hash_table -{ - struct elf_link_hash_table root; -}; - -/* Declare this now that the above structures are defined. */ - -static boolean sh_elf_discard_copies - PARAMS ((struct elf_sh_link_hash_entry *, PTR)); - -/* 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), \ - (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)) - -/* 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; -{ - struct elf_sh_link_hash_entry *ret = - (struct elf_sh_link_hash_entry *) entry; - - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (ret == (struct elf_sh_link_hash_entry *) NULL) - ret = ((struct elf_sh_link_hash_entry *) - bfd_hash_allocate (table, - sizeof (struct elf_sh_link_hash_entry))); - if (ret == (struct elf_sh_link_hash_entry *) NULL) - return (struct bfd_hash_entry *) ret; - - /* Call the allocation method of the superclass. */ - ret = ((struct elf_sh_link_hash_entry *) - _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, - table, string)); - if (ret != (struct elf_sh_link_hash_entry *) NULL) - { - ret->pcrel_relocs_copied = NULL; - } - - 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; -{ - struct elf_sh_link_hash_table *ret; - - ret = ((struct elf_sh_link_hash_table *) - bfd_alloc (abfd, sizeof (struct elf_sh_link_hash_table))); - 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)) - { - bfd_release (abfd, ret); - return NULL; - } - - return &ret->root.root; -} - -/* 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; -{ - flagword flags, pltflags; - register asection *s; - struct elf_backend_data *bed = get_elf_backend_data (abfd); - int ptralign = 0; - - switch (bed->s->arch_size) - { - case 32: - ptralign = 2; - break; - - case 64: - ptralign = 3; - break; - - default: - bfd_set_error (bfd_error_bad_value); - return false; - } - - /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and - .rel[a].bss sections. */ - - flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY - | SEC_LINKER_CREATED); - - pltflags = flags; - pltflags |= SEC_CODE; - if (bed->plt_not_loaded) - pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); - if (bed->plt_readonly) - pltflags |= SEC_READONLY; - - s = bfd_make_section (abfd, ".plt"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, pltflags) - || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) - 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; - 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; - h->type = STT_OBJECT; - - if (info->shared - && ! _bfd_elf_link_record_dynamic_symbol (info, h)) - return false; - } - - s = bfd_make_section (abfd, - bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); - 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; - - 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 (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 (bed->want_dynbss) - { - /* The .dynbss section is a place to put symbols which are defined - by dynamic objects, are referenced by regular objects, and are - not functions. We must allocate space for them in the process - 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; - - /* The .rel[a].bss section holds copy relocs. This section is not - normally needed. We need to create it here, though, so that the - linker will map it to an output section. We can't just create it - only if we need it, because we will not know whether we need it - until we have seen all the input files, and the first time the - main linker code calls BFD after examining all the input files - (size_dynamic_sections) the input sections have already been - mapped to the output sections. If the section turns out not to - be needed, we can discard it later. We will never need this - section when generating a shared object, since they do not use - copy relocs. */ - if (! info->shared) - { - s = bfd_make_section (abfd, - (bed->default_use_rela_p - ? ".rela.bss" : ".rel.bss")); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) - || ! bfd_set_section_alignment (abfd, s, ptralign)) - return false; - } - } - - return true; -} - -/* Adjust a symbol defined by a dynamic object and referenced by a - regular object. The current definition is in some section of the - dynamic object, but we're not including those sections. We have to - change the definition to something the rest of the link can - understand. */ - -static boolean -sh_elf_adjust_dynamic_symbol (info, h) - struct bfd_link_info *info; - struct elf_link_hash_entry *h; -{ - bfd *dynobj; - asection *s; - unsigned int power_of_two; - - dynobj = elf_hash_table (info)->dynobj; - - /* Make sure we know what is going on here. */ - BFD_ASSERT (dynobj != NULL - && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) - || h->weakdef != NULL - || ((h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_DYNAMIC) != 0 - && (h->elf_link_hash_flags - & ELF_LINK_HASH_REF_REGULAR) != 0 - && (h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) == 0))); - - /* If this 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) - { - 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) - { - /* 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 = 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; - } - - /* If this is a weak symbol, and there is a real definition, the - processor independent code will have arranged for us to see the - real definition first, and we can just use the same value. */ - if (h->weakdef != NULL) - { - BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined - || h->weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->weakdef->root.u.def.section; - h->root.u.def.value = h->weakdef->root.u.def.value; - return true; - } - - /* This is a reference to a symbol defined by a dynamic object which - is not a function. */ - - /* If we are creating a shared library, we must presume that the - only references to the symbol are via the global offset table. - For such cases we need not do anything here; the relocations will - be handled correctly by relocate_section. */ - if (info->shared) - 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; - - /* We must allocate the symbol in our .dynbss section, which will - become part of the .bss section of the executable. There will be - an entry for this symbol in the .dynsym section. The dynamic - object will contain position independent code, so all references - from the dynamic object to this symbol will go through the global - offset table. The dynamic linker will use the .dynsym entry to - determine the address it must put in the global offset table, so - 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"); - 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) - { - asection *srel; - - srel = bfd_get_section_by_name (dynobj, ".rela.bss"); - BFD_ASSERT (srel != NULL); - srel->_raw_size += sizeof (Elf32_External_Rela); - h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; - } - - /* 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; - - /* 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)) - { - if (! bfd_set_section_alignment (dynobj, s, power_of_two)) - return false; - } - - /* 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; - - /* Increment the section size to make room for the symbol. */ - s->_raw_size += h->size; - - return true; -} - -/* Set the sizes of the dynamic sections. */ - -static boolean -sh_elf_size_dynamic_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; -{ - bfd *dynobj; - asection *s; - boolean plt; - boolean relocs; - boolean reltext; - - dynobj = elf_hash_table (info)->dynobj; - BFD_ASSERT (dynobj != NULL); - - if (elf_hash_table (info)->dynamic_sections_created) - { - /* Set the contents of the .interp section to the interpreter. */ - if (! info->shared) - { - s = bfd_get_section_by_name (dynobj, ".interp"); - BFD_ASSERT (s != NULL); - s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; - s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; - } - } - else - { - /* 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 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; - reltext = false; - for (s = dynobj->sections; s != NULL; s = s->next) - { - const char *name; - boolean strip; - - if ((s->flags & SEC_LINKER_CREATED) == 0) - continue; - - /* 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); - - strip = false; - - if (strcmp (name, ".plt") == 0) - { - if (s->_raw_size == 0) - { - /* Strip this section if we don't need it; see the - comment below. */ - strip = true; - } - else - { - /* Remember whether there is a PLT. */ - plt = true; - } - } - else if (strncmp (name, ".rela", 5) == 0) - { - if (s->_raw_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. */ - strip = true; - } - else - { - asection *target; - - /* Remember whether there are any reloc sections other - than .rela.plt. */ - if (strcmp (name, ".rela.plt") != 0) - { - const char *outname; - - relocs = true; - - /* If this relocation section applies to a read only - section, then we probably need a DT_TEXTREL - entry. The entries in the .rela.plt section - really apply to the .got section, which we - created ourselves and so know is not readonly. */ - outname = bfd_get_section_name (output_bfd, - s->output_section); - target = bfd_get_section_by_name (output_bfd, outname + 5); - if (target != NULL - && (target->flags & SEC_READONLY) != 0 - && (target->flags & SEC_ALLOC) != 0) - reltext = 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 if (strncmp (name, ".got", 4) != 0) - { - /* It's not one of our sections, so don't allocate space. */ - continue; - } - - if (strip) - { - _bfd_strip_section_from_output (info, s); - continue; - } - - /* Allocate memory for the section contents. */ - s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); - if (s->contents == NULL && s->_raw_size != 0) - return false; - } - - if (elf_hash_table (info)->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. */ - if (! info->shared) - { - if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) - return false; - } - - if (plt) - { - if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA) - || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) - return false; - } - - if (relocs) - { - if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT, - sizeof (Elf32_External_Rela))) - return false; - } - - if (reltext) - { - if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) - return false; - } - } - - 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; - - for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) - s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela); - - return true; -} - -/* 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; -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - Elf_Internal_Rela *rel, *relend; - bfd *dynobj; - bfd_vma *local_got_offsets; - asection *sgot; - asection *splt; - asection *sreloc; - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - 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; - - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) - { - int r_type; - reloc_howto_type *howto; - unsigned long r_symndx; - Elf_Internal_Sym *sym; - asection *sec; - struct elf_link_hash_entry *h; - bfd_vma relocation; - bfd_vma addend = (bfd_vma) 0; - bfd_reloc_status_type r; - - 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) - continue; - if (r_type == (int) R_SH_NONE) - continue; - - if (r_type < 0 - || r_type >= R_SH_max - || (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)) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - - howto = sh_elf_howto_table + r_type; - - /* This is a final link. */ - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); - - if (info->relocateable) - { - /* This is a relocateable 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; - - continue; - } - } - 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; - - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - 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; - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - 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 - && h->plt.offset != (bfd_vma) -1) - || (r_type == R_SH_GOT32 - && elf_hash_table (info)->dynamic_sections_created - && (! info->shared - || (! info->symbolic && h->dynindx != -1) - || (h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) == 0)) - /* 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 - to run-time, because we can't resolve absolute - addresses when creating a shared library. */ - || (info->shared - && ((! info->symbolic && h->dynindx != -1) - || (h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) == 0) - && ((r_type == R_SH_DIR32 - && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL - || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)) - || r_type == R_SH_REL32) - && ((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) - { - (*_bfd_error_handler) - (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"), - bfd_get_filename (input_bfd), h->root.root.string, - bfd_get_section_name (input_bfd, input_section)); - relocation = 0; - } - 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->no_undefined) - relocation = 0; - else - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, rel->r_offset, true))) - return false; - relocation = 0; - } - } - - switch ((int) r_type) - { - final_link_relocate: - /* COFF relocs don't use the addend. The addend is used for - R_SH_DIR32 to be compatible with other compilers. */ - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, addend); - break; - - case R_SH_IND12W: - relocation -= 4; - goto final_link_relocate; - - case R_SH_DIR8WPN: - case R_SH_DIR8WPZ: - case R_SH_DIR8WPL: - /* If the reloc is against the start of this section, then - the assembler has already taken care of it and the reloc - is here only to assist in relaxing. If the reloc is not - against the start of this section, then it's against an - external symbol and we must deal with it ourselves. */ - if (input_section->output_section->vma + input_section->output_offset - != relocation) - { - int disp = (relocation - - input_section->output_section->vma - - input_section->output_offset - - rel->r_offset); - int mask = 0; - switch (r_type) - { - case R_SH_DIR8WPN: - case R_SH_DIR8WPZ: mask = 1; break; - case R_SH_DIR8WPL: mask = 3; break; - default: mask = 0; break; - } - if (disp & mask) - { - ((*_bfd_error_handler) - (_("%s: 0x%lx: fatal: unaligned branch target for relax-support relocation"), - bfd_get_filename (input_section->owner), - (unsigned long) rel->r_offset)); - bfd_set_error (bfd_error_bad_value); - return false; - } - relocation -= 4; - goto final_link_relocate; - } - r = bfd_reloc_ok; - break; - - default: - bfd_set_error (bfd_error_bad_value); - 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. */ - - 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); - } - - skip = false; - - if (elf_section_data (input_section)->stab_info == NULL) - outrel.r_offset = rel->r_offset; - else - { - 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; - } - - outrel.r_offset += (input_section->output_section->vma - + input_section->output_offset); - - if (skip) - { - memset (&outrel, 0, sizeof outrel); - relocate = false; - } - 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; - } - else - { - /* h->dynindx may be -1 if this symbol was marked to - become local. */ - if (h == NULL - || ((info->symbolic || h->dynindx == -1) - && (h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) != 0)) - { - relocate = true; - 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; - } - } - - bfd_elf32_swap_reloca_out (output_bfd, &outrel, - (((Elf32_External_Rela *) - sreloc->contents) - + sreloc->reloc_count)); - ++sreloc->reloc_count; - - /* If this reloc is against an external symbol, we do - not want to fiddle with the addend. Otherwise, we - need to include the symbol value so that it becomes - an addend for the dynamic reloc. */ - if (! relocate) - continue; - } - else if (r_type == R_SH_DIR32) - addend = rel->r_addend; - goto final_link_relocate; - - case R_SH_GOT32: - /* 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); - } - - if (h != NULL) - { - bfd_vma off; - - off = h->got.offset; - BFD_ASSERT (off != (bfd_vma) -1); - - if (! elf_hash_table (info)->dynamic_sections_created - || (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))) - { - /* This is actually a static link, or it is a - -Bsymbolic link and the symbol is defined - locally, or the symbol was forced to be local - because of a version file. We must initialize - this entry in the global offset table. Since the - offset must always be a multiple of 4, we use the - least significant bit to record whether we have - initialized it already. - - When doing a dynamic link, we create a .rela.got - relocation entry to initialize the value. This - is done in the finish_dynamic_symbol routine. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, - sgot->contents + off); - h->got.offset |= 1; - } - } - - relocation = sgot->output_offset + off; - } - else - { - bfd_vma off; - - BFD_ASSERT (local_got_offsets != NULL - && local_got_offsets[r_symndx] != (bfd_vma) -1); - - off = local_got_offsets[r_symndx]; - - /* The offset must always be a multiple of 4. We use - the least significant bit to record whether we have - already generated the necessary reloc. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, sgot->contents + off); - - if (info->shared) - { - asection *srelgot; - Elf_Internal_Rela outrel; - - srelgot = bfd_get_section_by_name (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; - } - - local_got_offsets[r_symndx] |= 1; - } - - relocation = sgot->output_offset + off; - } - - goto final_link_relocate; - - case R_SH_GOTOFF: - /* Relocation is relative to the start of the global offset - table. */ - - if (sgot == NULL) - { - sgot = bfd_get_section_by_name (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - } - - /* 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_GOTPC: - /* Use global offset table as symbol value. */ - - if (sgot == NULL) - { - sgot = bfd_get_section_by_name (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - } - - relocation = sgot->output_section->vma; - - goto final_link_relocate; - - case R_SH_PLT32: - /* Relocation is to the entry for this symbol in the - procedure linkage table. */ - - /* Resolve a PLT reloc against a local symbol directly, - without using 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) - goto final_link_relocate; - - if (h->plt.offset == (bfd_vma) -1) - { - /* We didn't make a PLT entry for this symbol. This - happens when statically linking PIC code, or when - using -Bsymbolic. */ - goto final_link_relocate; - } - - if (splt == NULL) - { - splt = bfd_get_section_by_name (dynobj, ".plt"); - BFD_ASSERT (splt != NULL); - } - - relocation = (splt->output_section->vma - + splt->output_offset - + h->plt.offset); - - 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; - } - } - - if (r != bfd_reloc_ok) - { - switch (r) - { - default: - case bfd_reloc_outofrange: - abort (); - case bfd_reloc_overflow: - { - const char *name; - - if (h != NULL) - name = h->root.root.string; - else - { - name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name)); - if (name == NULL) - return false; - if (*name == '\0') - name = bfd_section_name (input_bfd, sec); - } - if (! ((*info->callbacks->reloc_overflow) - (info, 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 (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; - - /* 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); - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - - memcpy (data, elf_section_data (input_section)->this_hdr.contents, - input_section->_raw_size); - - if ((input_section->flags & SEC_RELOC) != 0 - && input_section->reloc_count > 0) - { - Elf_Internal_Sym *isymp; - asection **secpp; - Elf32_External_Sym *esym, *esymend; - - if (symtab_hdr->contents != NULL) - external_syms = (Elf32_External_Sym *) symtab_hdr->contents; - else - { - external_syms = ((Elf32_External_Sym *) - bfd_malloc (symtab_hdr->sh_info - * sizeof (Elf32_External_Sym))); - if (external_syms == NULL && symtab_hdr->sh_info > 0) - goto error_return; - if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_read (external_syms, sizeof (Elf32_External_Sym), - symtab_hdr->sh_info, input_bfd) - != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)))) - goto error_return; - } - - 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; - - internal_syms = ((Elf_Internal_Sym *) - bfd_malloc (symtab_hdr->sh_info - * sizeof (Elf_Internal_Sym))); - if (internal_syms == NULL && symtab_hdr->sh_info > 0) - goto error_return; - - sections = (asection **) bfd_malloc (symtab_hdr->sh_info - * sizeof (asection *)); - if (sections == NULL && symtab_hdr->sh_info > 0) - goto error_return; - - isymp = internal_syms; - secpp = sections; - esym = external_syms; - esymend = esym + symtab_hdr->sh_info; - for (; esym < esymend; ++esym, ++isymp, ++secpp) - { - asection *isec; - - bfd_elf32_swap_symbol_in (input_bfd, esym, isymp); - - 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; - } - - *secpp = isec; - } - - if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd, - input_section, data, internal_relocs, - internal_syms, sections)) - goto error_return; - - 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; - } - - return data; - - 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; -} -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; - - default: - switch (h->root.type) - { - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - return h->root.u.def.section; - - case bfd_link_hash_common: - return h->root.u.c.p->section; - - default: - break; - } - } - } - else - { - 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); - } - return NULL; -} - -/* 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; -{ - /* 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; -} - -/* 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; -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - bfd *dynobj; - bfd_vma *local_got_offsets; - asection *sgot; - asection *srelgot; - asection *sreloc; - - sgot = NULL; - srelgot = NULL; - sreloc = NULL; - - if (info->relocateable) - return true; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - 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); - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - struct elf_link_hash_entry *h; - unsigned long r_symndx; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - h = NULL; - else - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - - /* Some relocs require a global offset table. */ - if (dynobj == NULL) - { - switch (ELF32_R_TYPE (rel->r_info)) - { - 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; - - default: - break; - } - } - - 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; - break; - - case R_SH_GOT32: - /* This symbol requires a global offset table entry. */ - - if (sgot == NULL) - { - sgot = bfd_get_section_by_name (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - } - - if (srelgot == NULL - && (h != NULL || info->shared)) - { - 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; - } - } - - if (h != NULL) - { - if (h->got.offset != (bfd_vma) -1) - { - /* We have already allocated space in the .got. */ - break; - } - h->got.offset = sgot->_raw_size; - - /* 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; - } - - srelgot->_raw_size += sizeof (Elf32_External_Rela); - } - else - { - /* This is a global offset table entry for a local - symbol. */ - if (local_got_offsets == NULL) - { - size_t size; - register unsigned int i; - - size = symtab_hdr->sh_info * 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) - { - /* 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); - } - } - - sgot->_raw_size += 4; - - break; - - case R_SH_PLT32: - /* 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 - never referenced by a dynamic object, in which case we - don't need to generate a procedure linkage table entry - after all. */ - - /* If this is a local symbol, we resolve it directly without - creating a procedure linkage table entry. */ - if (h == NULL) - continue; - - if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL - || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) - break; - - h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; - - break; - - case R_SH_DIR32: - case R_SH_REL32: - if (h != NULL) - h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; - - /* If we are creating a shared library, and this is a reloc - against a global symbol, or a non PC relative reloc - against a local symbol, then we need to copy the reloc - into the shared library. However, if we are linking with - -Bsymbolic, we do not need to copy a reloc against a - global symbol which is defined in an object we are - including in the link (i.e., DEF_REGULAR is set). At - this point we have not seen all the input files, so it is - 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)))) - { - /* 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; - - 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; - } - } - - 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) - { - struct elf_sh_link_hash_entry *eh; - struct elf_sh_pcrel_relocs_copied *p; - - eh = (struct elf_sh_link_hash_entry *) h; - - for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) - if (p->section == sreloc) - break; - - if (p == NULL) - { - p = ((struct elf_sh_pcrel_relocs_copied *) - bfd_alloc (dynobj, sizeof *p)); - if (p == NULL) - return false; - p->next = eh->pcrel_relocs_copied; - eh->pcrel_relocs_copied = p; - p->section = sreloc; - p->count = 0; - } - - ++p->count; - } - } - - break; - } - } - - return true; -} - -static boolean -sh_elf_set_mach_from_flags (abfd) - bfd *abfd; -{ - flagword flags = elf_elfheader (abfd)->e_flags; - - 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; -} - -/* Function to keep SH specific file flags. */ - -static boolean -sh_elf_set_private_flags (abfd, 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; - return sh_elf_set_mach_from_flags (abfd); -} - -/* Copy backend specific data from one object module to another */ - -static boolean -sh_elf_copy_private_data (ibfd, obfd) - bfd * ibfd; - bfd * obfd; -{ - if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); -} - -/* This routine checks for linking big and little endian objects - together, and for linking sh-dsp with sh3e / sh4 objects. */ - -static boolean -sh_elf_merge_private_data (ibfd, obfd) - bfd *ibfd; - bfd *obfd; -{ - flagword old_flags, new_flags; - - if (_bfd_generic_verify_endian_match (ibfd, obfd) == false) - return false; - - if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - 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; - } - 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))) - { - (*_bfd_error_handler) - ("%s: uses %s instructions while previous modules use %s instructions", - bfd_get_filename (ibfd), - EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point", - EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp"); - bfd_set_error (bfd_error_bad_value); - return false; - } - elf_elfheader (obfd)->e_flags = EF_SH_MERGE_MACH (old_flags, new_flags); - - return sh_elf_set_mach_from_flags (obfd); -} - -/* 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; -{ - bfd *dynobj; - - dynobj = elf_hash_table (info)->dynobj; - - if (h->plt.offset != (bfd_vma) -1) - { - asection *splt; - asection *sgot; - asection *srel; - - bfd_vma plt_index; - bfd_vma got_offset; - Elf_Internal_Rela rel; - - /* 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); - - /* 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; - - /* 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; - - /* Fill in the entry in the procedure linkage table. */ - if (! info->shared) - { - if (elf_sh_plt_entry == NULL) - { - elf_sh_plt_entry = (bfd_big_endian (output_bfd) ? - elf_sh_plt_entry_be : elf_sh_plt_entry_le); - } - 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 - { - if (elf_sh_pic_plt_entry == NULL) - { - elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ? - elf_sh_pic_plt_entry_be : - elf_sh_pic_plt_entry_le); - } - 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))); - } - - bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), - (splt->contents + h->plt.offset - + elf_sh_plt_reloc_offset (info))); - - /* 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); - - /* Fill in the entry in the .rela.plt section. */ - rel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + got_offset); - 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)); - - if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) - { - /* Mark the symbol as undefined, rather than as defined in - the .plt section. Leave the value alone. */ - sym->st_shndx = SHN_UNDEF; - } - } - - if (h->got.offset != (bfd_vma) -1) - { - asection *sgot; - asection *srel; - Elf_Internal_Rela rel; - - /* 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); - - rel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + (h->got.offset &~ 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. - 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)) - { - 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 + h->got.offset); - rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT); - rel.r_addend = 0; - } - - bfd_elf32_swap_reloca_out (output_bfd, &rel, - ((Elf32_External_Rela *) srel->contents - + srel->reloc_count)); - ++srel->reloc_count; - } - - if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) - { - asection *s; - Elf_Internal_Rela rel; - - /* This symbol needs a copy reloc. Set it up. */ - - BFD_ASSERT (h->dynindx != -1 - && (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"); - BFD_ASSERT (s != NULL); - - rel.r_offset = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + 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; - } - - /* 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) - sym->st_shndx = SHN_ABS; - - 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; -{ - bfd *dynobj; - asection *sgot; - asection *sdyn; - - dynobj = elf_hash_table (info)->dynobj; - - sgot = bfd_get_section_by_name (dynobj, ".got.plt"); - BFD_ASSERT (sgot != NULL); - sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); - - if (elf_hash_table (info)->dynamic_sections_created) - { - asection *splt; - Elf32_External_Dyn *dyncon, *dynconend; - - BFD_ASSERT (sdyn != NULL); - - dyncon = (Elf32_External_Dyn *) sdyn->contents; - dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); - for (; dyncon < dynconend; dyncon++) - { - Elf_Internal_Dyn dyn; - const char *name; - asection *s; - - bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); - - switch (dyn.d_tag) - { - default: - break; - - case DT_PLTGOT: - name = ".got"; - goto get_vma; - - case DT_JMPREL: - name = ".rela.plt"; - get_vma: - s = bfd_get_section_by_name (output_bfd, name); - 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"); - 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; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_RELASZ: - /* My reading of the SVR4 ABI indicates that the - procedure linkage table relocs (DT_JMPREL) should be - included in the overall relocs (DT_RELA). This is - what Solaris does. However, UnixWare can not handle - that case. Therefore, we override the DT_RELASZ entry - here to make it not include the JMPREL relocs. Since - 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 (s->_cooked_size != 0) - dyn.d_un.d_val -= s->_cooked_size; - else - dyn.d_un.d_val -= s->_raw_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) - { - if (info->shared) - { - if (elf_sh_pic_plt_entry == NULL) - { - elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ? - elf_sh_pic_plt_entry_be : - elf_sh_pic_plt_entry_le); - } - 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 - really seem like the right value. */ - elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; - } - } - - /* Fill in the first three entries in the global offset table. */ - if (sgot->_raw_size > 0) - { - if (sdyn == NULL) - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->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); - } - - elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; - - return true; -} - -#ifndef ELF_ARCH -#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" -#define ELF_ARCH bfd_arch_sh -#define ELF_MACHINE_CODE EM_SH -#define ELF_MAXPAGESIZE 128 - -#define elf_symbol_leading_char '_' -#endif /* ELF_ARCH */ - -#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_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_bfd_set_private_bfd_flags \ - sh_elf_set_private_flags -#define bfd_elf32_bfd_copy_private_bfd_data \ - sh_elf_copy_private_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_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_size_dynamic_sections \ - sh_elf_size_dynamic_sections -#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_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 -#include "elf32-target.h" |