diff options
Diffstat (limited to 'bfd/elf32-ppc.c')
| -rw-r--r-- | bfd/elf32-ppc.c | 1970 |
1 files changed, 1461 insertions, 509 deletions
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index 3540d40..57ede6a 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -27,9 +27,78 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "sysdep.h" #include "bfdlink.h" #include "libbfd.h" -#include "libelf.h" +#include "elf-bfd.h" #include "elf/ppc.h" +#define USE_RELA /* we want RELA relocations, not REL */ + +/* PowerPC relocations defined by the ABIs */ +enum ppc_reloc_type +{ + R_PPC_NONE = 0, + R_PPC_ADDR32 = 1, + R_PPC_ADDR24 = 2, + R_PPC_ADDR16 = 3, + R_PPC_ADDR16_LO = 4, + R_PPC_ADDR16_HI = 5, + R_PPC_ADDR16_HA = 6, + R_PPC_ADDR14 = 7, + R_PPC_ADDR14_BRTAKEN = 8, + R_PPC_ADDR14_BRNTAKEN = 9, + R_PPC_REL24 = 10, + R_PPC_REL14 = 11, + R_PPC_REL14_BRTAKEN = 12, + R_PPC_REL14_BRNTAKEN = 13, + R_PPC_GOT16 = 14, + R_PPC_GOT16_LO = 15, + R_PPC_GOT16_HI = 16, + R_PPC_GOT16_HA = 17, + R_PPC_PLTREL24 = 18, + R_PPC_COPY = 19, + R_PPC_GLOB_DAT = 20, + R_PPC_JMP_SLOT = 21, + R_PPC_RELATIVE = 22, + R_PPC_LOCAL24PC = 23, + R_PPC_UADDR32 = 24, + R_PPC_UADDR16 = 25, + R_PPC_REL32 = 26, + R_PPC_PLT32 = 27, + R_PPC_PLTREL32 = 28, + R_PPC_PLT16_LO = 29, + R_PPC_PLT16_HI = 30, + R_PPC_PLT16_HA = 31, + R_PPC_SDAREL16 = 32, + R_PPC_SECTOFF = 33, + R_PPC_SECTOFF_LO = 34, + R_PPC_SECTOFF_HI = 35, + R_PPC_SECTOFF_HA = 36, + + /* The remaining relocs are from the Embedded ELF ABI, and are not + in the SVR4 ELF ABI. */ + R_PPC_EMB_NADDR32 = 101, + R_PPC_EMB_NADDR16 = 102, + R_PPC_EMB_NADDR16_LO = 103, + R_PPC_EMB_NADDR16_HI = 104, + R_PPC_EMB_NADDR16_HA = 105, + R_PPC_EMB_SDAI16 = 106, + R_PPC_EMB_SDA2I16 = 107, + R_PPC_EMB_SDA2REL = 108, + R_PPC_EMB_SDA21 = 109, + R_PPC_EMB_MRKREF = 110, + R_PPC_EMB_RELSEC16 = 111, + R_PPC_EMB_RELST_LO = 112, + R_PPC_EMB_RELST_HI = 113, + R_PPC_EMB_RELST_HA = 114, + R_PPC_EMB_BIT_FLD = 115, + R_PPC_EMB_RELSDA = 116, + + /* This is a phony reloc to handle any old fashioned TOC16 references + that may still be in object files. */ + R_PPC_TOC16 = 255, + + R_PPC_max +}; + static bfd_reloc_status_type ppc_elf_unsupported_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); static bfd_reloc_status_type ppc_elf_std_reloc @@ -41,6 +110,12 @@ static bfd_reloc_status_type ppc_elf_addr16_ha_reloc static bfd_vma ppc_elf_got16_inner PARAMS ((asection *sec)); static bfd_reloc_status_type ppc_elf_got16_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static bfd_vma ppc_elf_toc16_inner PARAMS ((asection *sec)); +static bfd_reloc_status_type ppc_elf_toc16_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static bfd_vma ppc_elf_brtaken_inner PARAMS ((bfd_vma, enum ppc_reloc_type)); +static bfd_reloc_status_type ppc_elf_brtaken_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); static reloc_howto_type *ppc_elf_reloc_type_lookup PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); static void ppc_elf_info_to_howto @@ -50,6 +125,18 @@ static boolean ppc_elf_set_private_flags PARAMS ((bfd *, flagword)); static boolean ppc_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *)); static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *)); +static boolean ppc_elf_check_relocs PARAMS ((bfd *, + struct bfd_link_info *, + asection *, + const Elf_Internal_Rela *)); + +static boolean ppc_elf_adjust_dynamic_symbol PARAMS ((struct bfd_link_info *, + struct elf_link_hash_entry *)); + +static boolean ppc_elf_adjust_dynindx PARAMS ((struct elf_link_hash_entry *, PTR)); + +static boolean ppc_elf_size_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *)); + static boolean ppc_elf_relocate_section PARAMS ((bfd *, struct bfd_link_info *info, bfd *, @@ -59,70 +146,19 @@ static boolean ppc_elf_relocate_section PARAMS ((bfd *, Elf_Internal_Sym *local_syms, asection **)); -#define USE_RELA +static boolean ppc_elf_finish_dynamic_symbol PARAMS ((bfd *, + struct bfd_link_info *, + struct elf_link_hash_entry *, + Elf_Internal_Sym *)); -enum reloc_type -{ - R_PPC_NONE = 0, /* 0 */ - R_PPC_ADDR32, /* 1 */ - R_PPC_ADDR24, /* 2 */ - R_PPC_ADDR16, /* 3 */ - R_PPC_ADDR16_LO, /* 4 */ - R_PPC_ADDR16_HI, /* 5 */ - R_PPC_ADDR16_HA, /* 6 */ - R_PPC_ADDR14, /* 7 */ - R_PPC_ADDR14_BRTAKEN, /* 8 */ - R_PPC_ADDR14_BRNTAKEN, /* 9 */ - R_PPC_REL24, /* 10 */ - R_PPC_REL14, /* 11 */ - R_PPC_REL14_BRTAKEN, /* 12 */ - R_PPC_REL14_BRNTAKEN, /* 13 */ - R_PPC_GOT16, /* 14 */ - R_PPC_GOT16_LO, /* 15 */ - R_PPC_GOT16_HI, /* 16 */ - R_PPC_GOT16_HA, /* 17 */ - R_PPC_PLTREL24, /* 18 */ - R_PPC_COPY, /* 19 */ - R_PPC_GLOB_DAT, /* 20 */ - R_PPC_JMP_SLOT, /* 21 */ - R_PPC_RELATIVE, /* 22 */ - R_PPC_LOCAL24PC, /* 23 */ - R_PPC_UADDR32, /* 24 */ - R_PPC_UADDR16, /* 25 */ - R_PPC_REL32, /* 26 */ - R_PPC_PLT32, /* 27 */ - R_PPC_PLTREL32, /* 28 */ - R_PPC_PLT16_LO, /* 29 */ - R_PPC_PLT16_HI, /* 30 */ - R_PPC_PLT16_HA, /* 31 */ - R_PPC_SDAREL16, /* 32 */ - - /* Relocations added by Sun. */ - R_PPC_SECTOFF, /* 33 */ - R_PPC_SECTOFF_LO, /* 34 */ - R_PPC_SECTOFF_HI, /* 35 */ - R_PPC_SECTOFF_HA, /* 36 */ +static boolean ppc_elf_finish_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *)); - /* The remaining relocs are from the Embedded ELF ABI, and are not - in the SVR4 ELF ABI. */ - R_PPC_EMB_NADDR32 = 101, /* 101 */ - R_PPC_EMB_NADDR16, /* 102 */ - R_PPC_EMB_NADDR16_LO, /* 103 */ - R_PPC_EMB_NADDR16_HI, /* 104 */ - R_PPC_EMB_NADDR16_HA, /* 105 */ - R_PPC_EMB_SDAI16, /* 106 */ - R_PPC_EMB_SDA2I16, /* 107 */ - R_PPC_EMB_SDA2REL, /* 108 */ - R_PPC_EMB_SDA21, /* 109 */ - R_PPC_EMB_MRKREF, /* 110 */ - R_PPC_EMB_RELSEC16, /* 111 */ - R_PPC_EMB_RELST_LO, /* 112 */ - R_PPC_EMB_RELST_HI, /* 113 */ - R_PPC_EMB_RELST_HA, /* 114 */ - R_PPC_EMB_BIT_FLD, /* 115 */ - R_PPC_EMB_RELSDA, /* 116 */ - R_PPC_max -}; +#define BRANCH_PREDICT_BIT 0x200000 + +/* The name of the dynamic interpreter. This is put in the .interp + section. */ + +#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" static reloc_howto_type *ppc_elf_howto_table[ (int)R_PPC_max ]; @@ -130,671 +166,686 @@ static reloc_howto_type *ppc_elf_howto_table[ (int)R_PPC_max ]; static reloc_howto_type ppc_elf_howto_raw[] = { /* This reloc does nothing. */ - HOWTO (R_PPC_NONE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_NONE, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ - "R_PPC_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + "R_PPC_NONE", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ /* A standard 32 bit relocation. */ - HOWTO (R_PPC_ADDR32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_ADDR32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_ADDR32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ /* An absolute 26 bit branch; the lower two bits must be zero. FIXME: we don't check that, we just clear them. */ - HOWTO (R_PPC_ADDR24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_ADDR24, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_ADDR24", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x3fffffc, /* dst_mask */ + false), /* pcrel_offset */ /* A standard 16 bit relocation. */ - HOWTO (R_PPC_ADDR16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_ADDR16, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_ADDR16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* A 16 bit relocation without overflow. */ - HOWTO (R_PPC_ADDR16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_ADDR16_LO, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_dont,/* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_ADDR16_LO", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* The high order 16 bits of an address. */ - HOWTO (R_PPC_ADDR16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_ADDR16_HI, /* type */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_ADDR16_HI", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* The high order 16 bits of an address, plus 1 if the contents of - the low 16 bits, treated as a signed number, is negative. */ - HOWTO (R_PPC_ADDR16_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + the low 16 bits, treated as a signed number, is negative. */ + HOWTO (R_PPC_ADDR16_HA, /* type */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ ppc_elf_addr16_ha_reloc, /* special_function */ "R_PPC_ADDR16_HA", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* An absolute 16 bit branch; the lower two bits must be zero. FIXME: we don't check that, we just clear them. */ - HOWTO (R_PPC_ADDR14, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_ADDR14, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_ADDR14", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xfffc, /* dst_mask */ + false), /* pcrel_offset */ /* An absolute 16 bit branch, for which bit 10 should be set to - indicate that the branch is expected to be taken. The lower two - bits must be zero. */ - HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + indicate that the branch is expected to be taken. The lower two + bits must be zero. */ + HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ - ppc_elf_unsupported_reloc, /* special_function */ + ppc_elf_brtaken_reloc, /* special_function */ "R_PPC_ADDR14_BRTAKEN",/* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xfffc, /* dst_mask */ + false), /* pcrel_offset */ /* An absolute 16 bit branch, for which bit 10 should be set to indicate that the branch is not expected to be taken. The lower two bits must be zero. */ HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ - ppc_elf_unsupported_reloc, /* special_function */ + ppc_elf_brtaken_reloc, /* special_function */ "R_PPC_ADDR14_BRNTAKEN",/* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - false), /* pcrel_offset */ - - /* A relative 26 bit branch; the lower two bits must be zero. */ - HOWTO (R_PPC_REL24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xfffc, /* dst_mask */ + false), /* pcrel_offset */ + + /* A relative 26 bit branch; the lower two bits must be zero. */ + HOWTO (R_PPC_REL24, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_REL24", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - true), /* pcrel_offset */ - - /* A relative 16 bit branch; the lower two bits must be zero. */ - HOWTO (R_PPC_REL14, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x3fffffc, /* dst_mask */ + true), /* pcrel_offset */ + + /* A relative 16 bit branch; the lower two bits must be zero. */ + HOWTO (R_PPC_REL14, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_REL14", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - true), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xfffc, /* dst_mask */ + true), /* pcrel_offset */ - /* A relative 16 bit branch. Bit 10 should be set to indicate that + /* A relative 16 bit branch. Bit 10 should be set to indicate that the branch is expected to be taken. The lower two bits must be zero. */ - HOWTO (R_PPC_REL14_BRTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_REL14_BRTAKEN, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_std_reloc, /* special_function */ + ppc_elf_brtaken_reloc, /* special_function */ "R_PPC_REL14_BRTAKEN", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - true), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xfffc, /* dst_mask */ + true), /* pcrel_offset */ - /* A relative 16 bit branch. Bit 10 should be set to indicate that + /* A relative 16 bit branch. Bit 10 should be set to indicate that the branch is not expected to be taken. The lower two bits must be zero. */ - HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_std_reloc, /* special_function */ + ppc_elf_brtaken_reloc, /* special_function */ "R_PPC_REL14_BRNTAKEN",/* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - true), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xfffc, /* dst_mask */ + true), /* pcrel_offset */ /* Like R_PPC_ADDR16, but referring to the GOT table entry for the symbol. */ - HOWTO (R_PPC_GOT16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_GOT16, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ ppc_elf_got16_reloc, /* special_function */ "R_PPC_GOT16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for the symbol. */ - HOWTO (R_PPC_GOT16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_GOT16_LO, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_got16_reloc, /* special_function */ "R_PPC_GOT16_LO", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for the symbol. */ - HOWTO (R_PPC_GOT16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_GOT16_HI, /* type */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_got16_reloc, /* special_function */ "R_PPC_GOT16_HI", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for - the symbol. FIXME: Not supported. */ - HOWTO (R_PPC_GOT16_HA, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + the symbol. FIXME: Not supported. */ + HOWTO (R_PPC_GOT16_HA, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_GOT16_HA", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_REL24, but referring to the procedure linkage table entry for the symbol. FIXME: Not supported. */ HOWTO (R_PPC_PLTREL24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_std_reloc, /* special_function */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_PLTREL24", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - true), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x3fffffc, /* dst_mask */ + true), /* pcrel_offset */ /* This is used only by the dynamic linker. The symbol should exist both in the object being run and in some shared library. The dynamic linker copies the data addressed by the symbol from the shared library into the object. I have no idea what the purpose of this is. */ - HOWTO (R_PPC_COPY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_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 */ - ppc_elf_std_reloc, /* special_function */ + ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_COPY", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_ADDR32, but used when setting global offset table entries. */ - HOWTO (R_PPC_GLOB_DAT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_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 */ - ppc_elf_std_reloc, /* special_function */ + ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_GLOB_DAT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ /* Marks a procedure linkage table entry for a symbol. */ - HOWTO (R_PPC_JMP_SLOT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_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 */ - ppc_elf_std_reloc, /* special_function */ + ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_JMP_SLOT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ /* Used only by the dynamic linker. When the object is run, this longword is set to the load address of the object, plus the addend. */ - HOWTO (R_PPC_RELATIVE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_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 */ - ppc_elf_std_reloc, /* special_function */ + ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_RELATIVE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_REL24, but uses the value of the symbol within the object rather than the final value. Normally used for _GLOBAL_OFFSET_TABLE_. FIXME: Not supported. */ - HOWTO (R_PPC_LOCAL24PC, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_LOCAL24PC, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_LOCAL24PC", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - true), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x3fffffc, /* dst_mask */ + true), /* pcrel_offset */ /* Like R_PPC_ADDR32, but may be unaligned. */ - HOWTO (R_PPC_UADDR32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_UADDR32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_UADDR32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_ADDR16, but may be unaligned. */ - HOWTO (R_PPC_UADDR16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_UADDR16, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_UADDR16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* 32-bit PC relative */ HOWTO (R_PPC_REL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_std_reloc, /* special_function */ "R_PPC_REL32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ true), /* pcrel_offset */ /* 32-bit relocation to the symbol's procedure linkage table. FIXEME: not supported. */ HOWTO (R_PPC_PLT32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_PLT32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ /* 32-bit PC relative relocation to the symbol's procedure linkage table. FIXEME: not supported. */ HOWTO (R_PPC_PLTREL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_PLTREL32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ true), /* pcrel_offset */ /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for the symbol. */ - HOWTO (R_PPC_PLT16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_PLT16_LO, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_PLT16_LO", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for the symbol. */ - HOWTO (R_PPC_PLT16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_PLT16_HI, /* type */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_PLT16_HI", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for - the symbol. FIXME: Not supported. */ - HOWTO (R_PPC_PLT16_HA, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + the symbol. FIXME: Not supported. */ + HOWTO (R_PPC_PLT16_HA, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_PLT16_HA", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* A sign-extended 16 bit value relative to _SDA_BASE, for use with - small data items. */ + small data items. */ HOWTO (R_PPC_SDAREL16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ ppc_elf_got16_reloc, /* special_function */ "R_PPC_SDAREL16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* These next 4 relocations were added by Sun. */ /* 32-bit section relative relocation. FIXME: not supported. */ HOWTO (R_PPC_SECTOFF, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_SECTOFF", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ true), /* pcrel_offset */ /* 16-bit lower half section relative relocation. FIXME: not supported. */ - HOWTO (R_PPC_SECTOFF_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + HOWTO (R_PPC_SECTOFF_LO, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_SECTOFF_LO", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* 16-bit upper half section relative relocation. FIXME: not supported. */ HOWTO (R_PPC_SECTOFF_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_SECTOFF_HI", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* 16-bit upper half adjusted section relative relocation. FIXME: not supported. */ HOWTO (R_PPC_SECTOFF_HA, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_SECTOFF_HA", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* The remaining relocs are from the Embedded ELF ABI, and are not in the SVR4 ELF ABI. */ /* 32 bit value resulting from the addend minus the symbol */ HOWTO (R_PPC_EMB_NADDR32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_EMB_NADDR32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ - /* 16 bit value resulting from the addend minus the symbol */ +/* 16 bit value resulting from the addend minus the symbol */ HOWTO (R_PPC_EMB_NADDR16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_EMB_NADDR16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* 16 bit value resulting from the addend minus the symbol */ HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_dont,/* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_EMB_ADDR16_LO", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* The high order 16 bits of the addend minus the symbol */ HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_EMB_NADDR16_HI", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ /* The high order 16 bits of the result of the addend minus the address, plus 1 if the contents of the low 16 bits, treated as a signed number, is negative. */ HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ ppc_elf_unsupported_reloc, /* special_function */ "R_PPC_EMB_NADDR16_HA", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* Phony reloc to handle AIX style TOC entries */ + HOWTO (R_PPC_TOC16, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + ppc_elf_toc16_reloc, /* special_function */ + "R_PPC_TOC16", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ }; @@ -819,7 +870,7 @@ ppc_elf_reloc_type_lookup (abfd, code) bfd *abfd; bfd_reloc_code_real_type code; { - enum reloc_type ppc_reloc = R_PPC_NONE; + enum ppc_reloc_type ppc_reloc = R_PPC_NONE; if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */ ppc_elf_howto_init (); @@ -843,7 +894,7 @@ ppc_elf_reloc_type_lookup (abfd, code) case BFD_RELOC_PPC_B16: ppc_reloc = R_PPC_REL14; break; case BFD_RELOC_PPC_B16_BRTAKEN: ppc_reloc = R_PPC_REL14_BRTAKEN; break; case BFD_RELOC_PPC_B16_BRNTAKEN: ppc_reloc = R_PPC_REL14_BRNTAKEN; break; - case BFD_RELOC_PPC_TOC16: ppc_reloc = R_PPC_GOT16; break; + case BFD_RELOC_16_GOTOFF: ppc_reloc = R_PPC_GOT16; break; case BFD_RELOC_LO16_GOTOFF: ppc_reloc = R_PPC_GOT16_LO; break; case BFD_RELOC_HI16_GOTOFF: ppc_reloc = R_PPC_GOT16_HI; break; case BFD_RELOC_HI16_S_GOTOFF: ppc_reloc = R_PPC_GOT16_HA; break; @@ -863,6 +914,7 @@ ppc_elf_reloc_type_lookup (abfd, code) case BFD_RELOC_HI16_BASEREL: ppc_reloc = R_PPC_SECTOFF_HI; break; case BFD_RELOC_HI16_S_BASEREL: ppc_reloc = R_PPC_SECTOFF_HA; break; case BFD_RELOC_CTOR: ppc_reloc = R_PPC_ADDR32; break; + case BFD_RELOC_PPC_TOC16: ppc_reloc = R_PPC_TOC16; break; } return ppc_elf_howto_table[ (int)ppc_reloc ]; @@ -927,15 +979,16 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd) { flagword old_flags; flagword new_flags; + boolean error; /* Check if we have the same endianess */ - if (ibfd->xvec->byteorder_big_p != obfd->xvec->byteorder_big_p) + if (ibfd->xvec->byteorder != obfd->xvec->byteorder) { (*_bfd_error_handler) ("%s: compiled for a %s endian system and target is %s endian.\n", bfd_get_filename (ibfd), - (ibfd->xvec->byteorder_big_p) ? "big" : "little", - (obfd->xvec->byteorder_big_p) ? "big" : "little"); + bfd_big_endian (ibfd) ? "big" : "little", + bfd_big_endian (obfd) ? "big" : "little"); bfd_set_error (bfd_error_wrong_format); return false; @@ -962,9 +1015,11 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd) { /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib to be linked with either. */ + error = false; if ((new_flags & EF_PPC_RELOCATABLE) != 0 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) { + error = true; (*_bfd_error_handler) ("%s: compiled with -mrelocatable and linked with modules compiled normally\n", bfd_get_filename (ibfd)); @@ -972,6 +1027,7 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd) else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 && (old_flags & EF_PPC_RELOCATABLE) != 0) { + error = true; (*_bfd_error_handler) ("%s: compiled normally and linked with modules compiled with -mrelocatable\n", bfd_get_filename (ibfd)); @@ -986,6 +1042,7 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd) if ((new_flags & EF_PPC_EMB) != 0 && (old_flags & EF_PPC_EMB) == 0) { new_flags &= ~EF_PPC_EMB; + error = true; (*_bfd_error_handler) ("%s: compiled for the eabi and linked with modules compiled for System V\n", bfd_get_filename (ibfd)); @@ -993,6 +1050,7 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd) else if ((new_flags & EF_PPC_EMB) == 0 && (old_flags & EF_PPC_EMB) != 0) { old_flags &= ~EF_PPC_EMB; + error = true; (*_bfd_error_handler) ("%s: compiled for System V and linked with modules compiled for eabi\n", bfd_get_filename (ibfd)); @@ -1000,12 +1058,18 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd) /* Warn about any other mismatches */ if (new_flags != old_flags) - (*_bfd_error_handler) - ("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)\n", - bfd_get_filename (ibfd), (long)new_flags, (long)old_flags); + { + error = true; + (*_bfd_error_handler) + ("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)\n", + bfd_get_filename (ibfd), (long)new_flags, (long)old_flags); + } - bfd_set_error (bfd_error_bad_value); - return false; + if (error) + { + bfd_set_error (bfd_error_bad_value); + return false; + } } return true; @@ -1126,6 +1190,46 @@ static bfd_vma ppc_elf_got16_inner (sec) asection *sec; { +#ifdef DEBUG + fprintf (stderr, "ppc_elf_got16_inner called for %s\n", sec->name); +#endif + return -(sec->output_section->vma + 0x8000); +} + +/* Handle the GOT16 reloc. We want to use the offset within the .got + section, not the actual VMA. */ + +/*ARGSUSED*/ +static bfd_reloc_status_type +ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section, + output_bfd, error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message; +{ + if (output_bfd != (bfd *) NULL) + return ppc_elf_std_reloc (abfd, reloc_entry, symbol, data, + input_section, output_bfd, error_message); + +#ifdef DEBUG + fprintf (stderr, "ppc_elf_got16_reloc called for %s in %s\n", (*reloc_entry->sym_ptr_ptr)->name, input_section->name); +#endif + reloc_entry->addend += ppc_elf_got16_inner (bfd_get_section (*reloc_entry->sym_ptr_ptr)); + return bfd_reloc_continue; +} + +/* Internal function to return the addjustment to the addend for TOC16 + entries */ + +INLINE +static bfd_vma +ppc_elf_toc16_inner (sec) + asection *sec; +{ BFD_ASSERT (bfd_is_und_section (sec) || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0 @@ -1135,15 +1239,14 @@ ppc_elf_got16_inner (sec) return -(sec->output_section->vma + 0x8000); } -/* Handle the GOT16 reloc. We want to use the offset within the .got +/* Handle the TOC16 reloc. We want to use the offset within the .got section, not the actual VMA. This is appropriate when generating an embedded ELF object, for which the .got section acts like the - AIX .toc section. When and if we support PIC code, we will have to - change this, perhaps by switching off on the e_type field. */ + AIX .toc section. */ /*ARGSUSED*/ static bfd_reloc_status_type -ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section, +ppc_elf_toc16_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message) bfd *abfd; arelent *reloc_entry; @@ -1157,11 +1260,832 @@ ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section, return ppc_elf_std_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message); - reloc_entry->addend += ppc_elf_got16_inner (bfd_get_section (*reloc_entry->sym_ptr_ptr)); + reloc_entry->addend += ppc_elf_toc16_inner (bfd_get_section (*reloc_entry->sym_ptr_ptr)); + return bfd_reloc_continue; +} + +/* Internal function to return the adjustment for relocations that set the + branch taken bit or branch not taken in B0 for conditional branches. + The dst_mask for these relocations allows this bit to be set as part + of the addend. */ + +INLINE +static bfd_vma +ppc_elf_brtaken_inner (relocation, ppc_reloc) + bfd_vma relocation; + enum ppc_reloc_type ppc_reloc; +{ + if (ppc_reloc == R_PPC_ADDR14_BRTAKEN || ppc_reloc == R_PPC_REL14_BRTAKEN) + return (relocation & 0x8000) ? 0 : BRANCH_PREDICT_BIT; /* branch taken */ + else + return (relocation & 0x8000) ? BRANCH_PREDICT_BIT : 0; /* branch not taken */ +} + +/* Handle the R_PPC_{ADDR,REL}14_BR{,N}TAKEN relocs by setting bit 10 to indicate + whether the branch is taken or not. */ + +/*ARGSUSED*/ +static bfd_reloc_status_type +ppc_elf_brtaken_reloc (abfd, reloc_entry, symbol, data, input_section, + output_bfd, error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message; +{ + bfd_vma relocation; + asection *sec; + long insn; + + if (output_bfd != (bfd *) NULL) + return ppc_elf_std_reloc (abfd, reloc_entry, symbol, data, + input_section, output_bfd, error_message); + + sec = symbol->section; + relocation = (((bfd_is_com_section (sec)) ? 0 : symbol->value) + + sec->output_section->vma + + sec->output_offset + + reloc_entry->addend); + + /* Set the branch prediction bit */ + insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); + insn &= ~BRANCH_PREDICT_BIT; + insn |= ppc_elf_brtaken_inner (relocation - reloc_entry->address, + (enum ppc_reloc_type)reloc_entry->howto->type); + bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); + return bfd_reloc_continue; } +/* 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 +ppc_elf_adjust_dynamic_symbol (info, h) + struct bfd_link_info *info; + struct elf_link_hash_entry *h; +{ +#ifdef DEBUG + fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called\n"); +#endif + return true; +} + + +/* Increment the index of a dynamic symbol by a given amount. Called + via elf_link_hash_traverse. */ + +static boolean +ppc_elf_adjust_dynindx (h, cparg) + struct elf_link_hash_entry *h; + PTR cparg; +{ + int *cp = (int *) cparg; + +#ifdef DEBUG + fprintf (stderr, "ppc_elf_adjust_dynindx called, h->dynindx = %d, *cp = %d\n", h->dynindx, *cp); +#endif + + if (h->dynindx != -1) + h->dynindx += *cp; + + return true; +} + + +/* Set the sizes of the dynamic sections. */ + +static boolean +ppc_elf_size_dynamic_sections (output_bfd, info) + bfd *output_bfd; + struct bfd_link_info *info; +{ + bfd *dynobj; + asection *s; + boolean reltext; + boolean relplt; + +#ifdef DEBUG + fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); +#endif + + 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; + } + + /* Make space for the trailing nop in .plt. */ + s = bfd_get_section_by_name (dynobj, ".plt"); + BFD_ASSERT (s != NULL); + if (s->_raw_size > 0) + s->_raw_size += 4; + } + 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; + } + + /* The check_relocs and adjust_dynamic_symbol entry points have + determined the sizes of the various dynamic sections. Allocate + memory for them. */ + reltext = false; + relplt = false; + for (s = dynobj->sections; s != NULL; s = s->next) + { + const char *name; + boolean strip; + + if ((s->flags & SEC_IN_MEMORY) == 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 (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 to handle .rela.bss and + .rel.plt. We must create it in + create_dynamic_sections, because it 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; + + /* If this relocation section applies to a read only + section, then we probably need a DT_TEXTREL entry. */ + target = bfd_get_section_by_name (output_bfd, name + 5); + if (target != NULL + && (target->flags & SEC_READONLY) != 0) + reltext = true; + + if (strcmp (name, ".rela.plt") == 0) + relplt = 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 (strcmp (name, ".plt") != 0 + && strcmp (name, ".got") != 0) + { + /* It's not one of our sections, so don't allocate space. */ + continue; + } + + if (strip) + { + asection **spp; + + for (spp = &s->output_section->owner->sections; + *spp != s->output_section; + spp = &(*spp)->next) + ; + *spp = s->output_section->next; + --s->output_section->owner->section_count; + + 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 ppc_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 (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) + return false; + + if (relplt) + { + if (! 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 (! 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; + } + } + + /* If we are generating a shared library, we generate a section + symbol for each output section. These are local symbols, which + means that they must come first in the dynamic symbol table. + That means we must increment the dynamic symbol index of every + other dynamic symbol. */ + if (info->shared) + { + int c, i; + + c = bfd_count_sections (output_bfd); + elf_link_hash_traverse (elf_hash_table (info), + ppc_elf_adjust_dynindx, + (PTR) &c); + elf_hash_table (info)->dynsymcount += c; + + for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++) + { + elf_section_data (s)->dynindx = i; + /* These symbols will have no names, so we don't need to + fiddle with dynstr_index. */ + } + } + + return true; +} + + +/* Look through the relocs for a section during the first phase, and + allocate space in the global offset table or procedure linkage + table. */ + +static boolean +ppc_elf_check_relocs (abfd, info, sec, relocs) + bfd *abfd; + struct bfd_link_info *info; + asection *sec; + const Elf_Internal_Rela *relocs; +{ + bfd *dynobj; + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + bfd_vma *local_got_offsets; + const Elf_Internal_Rela *rel; + const Elf_Internal_Rela *rel_end; + asection *sgot; + asection *srelgot; + asection *sreloc; + + if (info->relocateable) + return true; + +#ifdef DEBUG + fprintf (stderr, "ppc_elf_check_relocs called for section %s\n", sec->name); +#endif + + dynobj = elf_hash_table (info)->dynobj; + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (abfd); + local_got_offsets = elf_local_got_offsets (abfd); + + sgot = NULL; + srelgot = NULL; + sreloc = NULL; + + rel_end = relocs + sec->reloc_count; + for (rel = relocs; rel < rel_end; rel++) + { + unsigned long r_symndx; + struct elf_link_hash_entry *h; + + 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]; + + switch (ELF32_R_TYPE (rel->r_info)) + { + case R_PPC_GOT16: + case R_PPC_GOT16_LO: + case R_PPC_GOT16_HI: + case R_PPC_GOT16_HA: +#ifdef DEBUG + fprintf (stderr, "Reloc requires a GOT entry\n"); +#endif + /* This symbol requires a global offset table entry. */ + + if (dynobj == NULL) + { + /* Create the .got section. */ + elf_hash_table (info)->dynobj = dynobj = abfd; + if (! _bfd_elf_create_got_section (dynobj, info)) + return false; + } + + 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_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_SPARC_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_PPC_PLT32: + case R_PPC_PLTREL24: + case R_PPC_PLT16_LO: + case R_PPC_PLT16_HI: + case R_PPC_PLT16_HA: +#ifdef DEBUG + fprintf (stderr, "Reloc requires a PLT entry\n"); +#endif + /* This symbol requires a procedure linkage table entry. We + actually build the entry in adjust_dynamic_symbol, + because this might be a case of linking PIC code without + linking in any dynamic objects, in which case we don't + need to generate a procedure linkage table after all. */ + + if (h == NULL) + { + /* It does not make sense to have a procedure linkage + table entry for a local symbol. */ + bfd_set_error (bfd_error_bad_value); + return false; + } + + /* 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; + } + + h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; + break; + +#if 0 + case R_SPARC_PC10: + case R_SPARC_PC22: + if (h != NULL + && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) + break; + /* Fall through. */ + case R_SPARC_DISP8: + case R_SPARC_DISP16: + case R_SPARC_DISP32: + case R_SPARC_WDISP30: + case R_SPARC_WDISP22: + if (h == NULL) + break; + /* Fall through. */ + case R_SPARC_8: + case R_SPARC_16: + case R_SPARC_32: + case R_SPARC_HI22: + case R_SPARC_22: + case R_SPARC_13: + case R_SPARC_LO10: + case R_SPARC_UA32: + if (info->shared + && (sec->flags & SEC_ALLOC) != 0) + { + /* When creating a shared object, we must copy these + relocs into the output file. We create a reloc + section in dynobj and make room for the 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) + { + sreloc = bfd_make_section (dynobj, name); + if (sreloc == NULL + || ! bfd_set_section_flags (dynobj, sreloc, + (SEC_ALLOC + | SEC_LOAD + | SEC_HAS_CONTENTS + | SEC_IN_MEMORY + | SEC_READONLY)) + || ! bfd_set_section_alignment (dynobj, sreloc, 2)) + return false; + } + } + + sreloc->_raw_size += sizeof (Elf32_External_Rela); + } + + break; +#endif + + default: + break; + } + } + + return true; +} + + +/* Finish up dynamic symbol handling. We set the contents of various + dynamic sections here. */ + +static boolean +ppc_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; + +#ifdef DEBUG + fprintf (stderr, "ppc_elf_finish_dynamic_symbol called\n"); +#endif + + dynobj = elf_hash_table (info)->dynobj; + + if (h->plt_offset != (bfd_vma) -1) + { + asection *splt; + asection *srela; + Elf_Internal_Rela rela; + + /* 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"); + srela = bfd_get_section_by_name (dynobj, ".rela.plt"); + BFD_ASSERT (splt != NULL && srela != NULL); + + /* Fill in the entry in the procedure linkage table. */ +#if 0 + bfd_put_32 (output_bfd, + PLT_ENTRY_WORD0 + h->plt_offset, + splt->contents + h->plt_offset); + bfd_put_32 (output_bfd, + (PLT_ENTRY_WORD1 + + (((- (h->plt_offset + 4)) >> 2) & 0x3fffff)), + splt->contents + h->plt_offset + 4); + bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, + splt->contents + h->plt_offset + 8); + + /* Fill in the entry in the .rela.plt section. */ + rela.r_offset = (splt->output_section->vma + + splt->output_offset + + h->plt_offset); + rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); + rela.r_addend = 0; + bfd_elf32_swap_reloca_out (output_bfd, &rela, + ((Elf32_External_Rela *) srela->contents + + h->plt_offset / PLT_ENTRY_SIZE - 4)); +#endif + + 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 *srela; + Elf_Internal_Rela rela; + + /* This symbol has an entry in the global offset table. Set it + up. */ + + BFD_ASSERT (h->dynindx != -1); + + sgot = bfd_get_section_by_name (dynobj, ".got"); + srela = bfd_get_section_by_name (dynobj, ".rela.got"); + BFD_ASSERT (sgot != NULL && srela != NULL); + + rela.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. The entry in + the global offset table will already have been initialized in + the relocate_section function. */ + if (info->shared + && info->symbolic + && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) + rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); + else + { + bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got_offset); + rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_GLOB_DAT); + } + + rela.r_addend = 0; + bfd_elf32_swap_reloca_out (output_bfd, &rela, + ((Elf32_External_Rela *) srela->contents + + srela->reloc_count)); + ++srela->reloc_count; + } + + if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) + { + asection *s; + Elf_Internal_Rela rela; + + /* This symbols needs a copy reloc. Set it up. */ + + BFD_ASSERT (h->dynindx != -1); + + s = bfd_get_section_by_name (h->root.u.def.section->owner, + ".rela.bss"); + BFD_ASSERT (s != NULL); + + rela.r_offset = (h->root.u.def.value + + h->root.u.def.section->output_section->vma + + h->root.u.def.section->output_offset); + rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); + rela.r_addend = 0; + bfd_elf32_swap_reloca_out (output_bfd, &rela, + ((Elf32_External_Rela *) s->contents + + s->reloc_count)); + ++s->reloc_count; + } + + /* Mark some specially defined symbols as absolute. */ + if (strcmp (h->root.root.string, "_DYNAMIC") == 0 + || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 + || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) + sym->st_shndx = SHN_ABS; + + return true; +} + + +/* Finish up the dynamic sections. */ + +static boolean +ppc_elf_finish_dynamic_sections (output_bfd, info) + bfd *output_bfd; + struct bfd_link_info *info; +{ + bfd *dynobj; + asection *sdyn; + asection *sgot; + +#ifdef DEBUG + fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); +#endif + + dynobj = elf_hash_table (info)->dynobj; + + sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); + + if (elf_hash_table (info)->dynamic_sections_created) + { + asection *splt; + Elf32_External_Dyn *dyncon, *dynconend; + + splt = bfd_get_section_by_name (dynobj, ".plt"); + BFD_ASSERT (splt != NULL && 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; + boolean size; + + bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); + + switch (dyn.d_tag) + { + case DT_PLTGOT: name = ".plt"; size = false; break; + case DT_PLTRELSZ: name = ".rela.plt"; size = true; break; + case DT_JMPREL: name = ".rela.plt"; size = false; break; + default: name = NULL; size = false; break; + } + + if (name != NULL) + { + asection *s; + + s = bfd_get_section_by_name (output_bfd, name); + if (s == NULL) + dyn.d_un.d_val = 0; + else + { + if (! size) + dyn.d_un.d_ptr = s->vma; + else + { + 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); + } + } + + /* Clear the first four entries in the procedure linkage table, + and put a nop in the last four bytes. */ +#if 0 + if (splt->_raw_size > 0) + { + memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE); + bfd_put_32 (output_bfd, SPARC_NOP, + splt->contents + splt->_raw_size - 4); + } + + elf_section_data (splt->output_section)->this_hdr.sh_entsize = + PLT_ENTRY_SIZE; +#endif + } + + /* Set the first entry in the global offset table to the address of + the dynamic section. */ + sgot = bfd_get_section_by_name (dynobj, ".got"); + BFD_ASSERT (sgot != NULL); + 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); + } + + elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; + + if (info->shared) + { + asection *sdynsym; + asection *s; + Elf_Internal_Sym sym; + + /* Set up the section symbols for the output sections. */ + + sdynsym = bfd_get_section_by_name (dynobj, ".dynsym"); + BFD_ASSERT (sdynsym != NULL); + + sym.st_size = 0; + sym.st_name = 0; + sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); + sym.st_other = 0; + + for (s = output_bfd->sections; s != NULL; s = s->next) + { + int indx; + + sym.st_value = s->vma; + + indx = elf_section_data (s)->this_idx; + BFD_ASSERT (indx > 0); + sym.st_shndx = indx; + + bfd_elf32_swap_symbol_out (output_bfd, &sym, + (PTR) (((Elf32_External_Sym *) + sdynsym->contents) + + elf_section_data (s)->dynindx)); + } + + /* Set the sh_info field of the output .dynsym section to the + index of the first global symbol. */ + elf_section_data (sdynsym->output_section)->this_hdr.sh_info = + bfd_count_sections (output_bfd) + 1; + } + + return true; +} + + /* The RELOCATE_SECTION function is called by the ELF backend linker to handle the relocations for a section. @@ -1203,11 +2127,17 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, Elf_Internal_Sym *local_syms; asection **local_sections; { - Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; + Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); + bfd *dynobj = elf_hash_table (info)->dynobj; + bfd_vma *local_got_offsets = elf_local_got_offsets (input_bfd); + asection *sgot; + asection *splt; + asection *sreloc; Elf_Internal_Rela *rel = relocs; Elf_Internal_Rela *relend = relocs + input_section->reloc_count; boolean ret = true; + long insn; #ifdef DEBUG fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, %ld relocations%s\n", @@ -1222,7 +2152,7 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, for (; rel < relend; rel++) { - enum reloc_type r_type = (enum reloc_type)ELF32_R_TYPE (rel->r_info); + enum ppc_reloc_type r_type = (enum ppc_reloc_type)ELF32_R_TYPE (rel->r_info); bfd_vma offset = rel->r_offset; bfd_vma addend = rel->r_addend; bfd_reloc_status_type r = bfd_reloc_other; @@ -1332,7 +2262,18 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, default: break; - case (int)R_PPC_GOT16: /* GOT16 relocations */ + case (int)R_PPC_ADDR14_BRTAKEN: /* branch prediction relocations */ + case (int)R_PPC_ADDR14_BRNTAKEN: + case (int)R_PPC_REL14_BRTAKEN: + case (int)R_PPC_REL14_BRNTAKEN: + BFD_ASSERT (sec != (asection *)0); + insn = bfd_get_32 (output_bfd, contents + offset); + insn &= ~BRANCH_PREDICT_BIT; + insn |= ppc_elf_brtaken_inner (relocation - offset, r_type); + bfd_put_32 (output_bfd, insn, contents + offset); + break; + + case (int)R_PPC_GOT16: /* GOT16 relocations */ case (int)R_PPC_GOT16_LO: case (int)R_PPC_GOT16_HI: case (int)R_PPC_SDAREL16: @@ -1340,7 +2281,12 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, addend += ppc_elf_got16_inner (sec); break; - case (int)R_PPC_ADDR16_HA: /* arithmetic adjust relocations */ + case (int)R_PPC_TOC16: /* phony GOT16 relocations */ + BFD_ASSERT (sec != (asection *)0); + addend += ppc_elf_toc16_inner (sec); + break; + + case (int)R_PPC_ADDR16_HA: /* arithmetic adjust relocations */ BFD_ASSERT (sec != (asection *)0); addend += ppc_elf_addr16_ha_inner (relocation + addend); break; @@ -1434,5 +2380,11 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup #define elf_backend_relocate_section ppc_elf_relocate_section +#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections +#define elf_backend_check_relocs ppc_elf_check_relocs +#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol +#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections +#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol +#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections #include "elf32-target.h" |