X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Felf64-mips.c;h=2f323c6d7fdffa8e35b26937b23ddb4b06ebcb80;hb=3f9034c204cf1845d2f2d94f906a8573183831ba;hp=e9e58df9cb4df227870279c8a54722abebae6c6a;hpb=5b175e562bea1d0899b2d870715784d09c087f5b;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf64-mips.c b/bfd/elf64-mips.c index e9e58df9cb..2f323c6d7f 100644 --- a/bfd/elf64-mips.c +++ b/bfd/elf64-mips.c @@ -1,7 +1,5 @@ /* MIPS-specific support for 64-bit ELF - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, - 2006, 2007, 2008, 2009, 2010 - Free Software Foundation, Inc. + Copyright (C) 1996-2014 Free Software Foundation, Inc. Ian Lance Taylor, Cygnus Support Linker support added by Mark Mitchell, CodeSourcery, LLC. @@ -130,8 +128,8 @@ static bfd_boolean elf64_mips_grok_prstatus static bfd_boolean elf64_mips_grok_psinfo (bfd *, Elf_Internal_Note *); -extern const bfd_target bfd_elf64_bigmips_vec; -extern const bfd_target bfd_elf64_littlemips_vec; +extern const bfd_target mips_elf64_be_vec; +extern const bfd_target mips_elf64_le_vec; /* In case we're on a 32-bit machine, construct a 64-bit "-1" value from smaller values. Start with zero, widen, *then* decrement. */ @@ -807,6 +805,100 @@ static reloc_howto_type mips_elf64_howto_table_rel[] = 0x0, /* src_mask */ 0xffffffff, /* dst_mask */ FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (52), + EMPTY_HOWTO (53), + EMPTY_HOWTO (54), + EMPTY_HOWTO (55), + EMPTY_HOWTO (56), + EMPTY_HOWTO (57), + EMPTY_HOWTO (58), + EMPTY_HOWTO (59), + + HOWTO (R_MIPS_PC21_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 21, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC21_S2", /* name */ + TRUE, /* partial_inplace */ + 0x001fffff, /* src_mask */ + 0x001fffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC26_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC26_S2", /* name */ + TRUE, /* partial_inplace */ + 0x03ffffff, /* src_mask */ + 0x03ffffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC18_S3, /* type */ + 3, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 18, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC18_S3", /* name */ + TRUE, /* partial_inplace */ + 0x0003ffff, /* src_mask */ + 0x0003ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC19_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 19, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC19_S2", /* name */ + TRUE, /* partial_inplace */ + 0x0007ffff, /* src_mask */ + 0x0007ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCHI16, /* type */ + 16, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCHI16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCLO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCLO16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + }; /* The relocation table used for SHT_RELA sections. */ @@ -1494,6 +1586,100 @@ static reloc_howto_type mips_elf64_howto_table_rela[] = 0x0, /* src_mask */ 0xffffffff, /* dst_mask */ FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (52), + EMPTY_HOWTO (53), + EMPTY_HOWTO (54), + EMPTY_HOWTO (55), + EMPTY_HOWTO (56), + EMPTY_HOWTO (57), + EMPTY_HOWTO (58), + EMPTY_HOWTO (59), + + HOWTO (R_MIPS_PC21_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 21, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC21_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x001fffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC26_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC26_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x03ffffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC18_S3, /* type */ + 3, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 18, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC18_S3", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0003ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC19_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 19, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC19_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0007ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCHI16, /* type */ + 16, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCHI16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCLO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCLO16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + }; static reloc_howto_type mips16_elf64_howto_table_rel[] = @@ -2622,6 +2808,23 @@ static reloc_howto_type elf_mips_gnu_rela16_s2 = 0, /* src_mask */ 0x0000ffff, /* dst_mask */ TRUE); /* pcrel_offset */ + +/* 32 bit pc-relative. Used for compact EH tables. */ +static reloc_howto_type elf_mips_gnu_pcrel32 = + HOWTO (R_MIPS_PC32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC32", /* name */ + TRUE, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + TRUE); /* pcrel_offset */ + /* Originally a VxWorks extension, but now used for other systems too. */ static reloc_howto_type elf_mips_copy_howto = @@ -2632,7 +2835,7 @@ static reloc_howto_type elf_mips_copy_howto = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ + _bfd_mips_elf_generic_reloc, /* special_function */ "R_MIPS_COPY", /* name */ FALSE, /* partial_inplace */ 0x0, /* src_mask */ @@ -2648,12 +2851,29 @@ static reloc_howto_type elf_mips_jump_slot_howto = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ + _bfd_mips_elf_generic_reloc, /* special_function */ "R_MIPS_JUMP_SLOT", /* name */ FALSE, /* partial_inplace */ 0x0, /* src_mask */ 0x0, /* dst_mask */ FALSE); /* pcrel_offset */ + +/* Used in EH tables. */ +static reloc_howto_type elf_mips_eh_howto = + HOWTO (R_MIPS_EH, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_EH", /* name */ + TRUE, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + FALSE); /* pcrel_offset */ + /* Swap in a MIPS 64-bit Rel reloc. */ @@ -3170,7 +3390,13 @@ static const struct elf_reloc_map mips_reloc_map[] = { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 }, { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 }, { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 }, - { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 } + { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }, + { BFD_RELOC_MIPS_21_PCREL_S2, R_MIPS_PC21_S2 }, + { BFD_RELOC_MIPS_26_PCREL_S2, R_MIPS_PC26_S2 }, + { BFD_RELOC_MIPS_18_PCREL_S3, R_MIPS_PC18_S3 }, + { BFD_RELOC_MIPS_19_PCREL_S2, R_MIPS_PC19_S2 }, + { BFD_RELOC_HI16_S_PCREL, R_MIPS_PCHI16 }, + { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 } }; static const struct elf_reloc_map mips16_reloc_map[] = @@ -3257,6 +3483,10 @@ bfd_elf64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, return &elf_mips_gnu_vtinherit_howto; case BFD_RELOC_VTABLE_ENTRY: return &elf_mips_gnu_vtentry_howto; + case BFD_RELOC_32_PCREL: + return &elf_mips_gnu_pcrel32; + case BFD_RELOC_MIPS_EH: + return &elf_mips_eh_howto; case BFD_RELOC_MIPS_COPY: return &elf_mips_copy_howto; case BFD_RELOC_MIPS_JUMP_SLOT: @@ -3304,6 +3534,10 @@ bfd_elf64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, return &elf_mips_gnu_rel16_s2; if (strcasecmp (elf_mips_gnu_rela16_s2.name, r_name) == 0) return &elf_mips_gnu_rela16_s2; + if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0) + return &elf_mips_gnu_pcrel32; + if (strcasecmp (elf_mips_eh_howto.name, r_name) == 0) + return &elf_mips_eh_howto; if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0) return &elf_mips_copy_howto; if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0) @@ -3328,6 +3562,10 @@ mips_elf64_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) return &elf_mips_gnu_rela16_s2; else return &elf_mips_gnu_rel16_s2; + case R_MIPS_PC32: + return &elf_mips_gnu_pcrel32; + case R_MIPS_EH: + return &elf_mips_eh_howto; case R_MIPS_COPY: return &elf_mips_copy_howto; case R_MIPS_JUMP_SLOT: @@ -3987,8 +4225,8 @@ mips_elf64_object_p (bfd *abfd) static irix_compat_t elf64_mips_irix_compat (bfd *abfd) { - if ((abfd->xvec == &bfd_elf64_bigmips_vec) - || (abfd->xvec == &bfd_elf64_littlemips_vec)) + if ((abfd->xvec == &mips_elf64_be_vec) + || (abfd->xvec == &mips_elf64_le_vec)) return ict_irix6; else return ict_none; @@ -4008,10 +4246,10 @@ elf64_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) case 480: /* Linux/MIPS - N64 kernel */ /* pr_cursig */ - elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); + elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); /* pr_pid */ - elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 32); + elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); /* pr_reg */ offset = 112; @@ -4034,9 +4272,9 @@ elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) return FALSE; case 136: /* Linux/MIPS - N64 kernel elf_prpsinfo */ - elf_tdata (abfd)->core_program + elf_tdata (abfd)->core->program = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); - elf_tdata (abfd)->core_command + elf_tdata (abfd)->core->command = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); } @@ -4045,7 +4283,7 @@ elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) implementations, so strip it off if it exists. */ { - char *command = elf_tdata (abfd)->core_command; + char *command = elf_tdata (abfd)->core->command; int n = strlen (command); if (0 < n && command[n - 1] == ' ') @@ -4141,6 +4379,8 @@ const struct elf_size_info mips_elf64_size_info = #define elf_backend_collect TRUE #define elf_backend_type_change_ok TRUE #define elf_backend_can_gc_sections TRUE +#define elf_backend_gc_mark_extra_sections \ + _bfd_mips_elf_gc_mark_extra_sections #define elf_info_to_howto mips_elf64_info_to_howto_rela #define elf_info_to_howto_rel mips_elf64_info_to_howto_rel #define elf_backend_object_p mips_elf64_object_p @@ -4256,9 +4496,9 @@ extern bfd_boolean bfd_elf64_archive_write_armap _bfd_archive_coff_update_armap_timestamp /* The SGI style (n)64 NewABI. */ -#define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec +#define TARGET_LITTLE_SYM mips_elf64_le_vec #define TARGET_LITTLE_NAME "elf64-littlemips" -#define TARGET_BIG_SYM bfd_elf64_bigmips_vec +#define TARGET_BIG_SYM mips_elf64_be_vec #define TARGET_BIG_NAME "elf64-bigmips" #define ELF_MAXPAGESIZE 0x10000 @@ -4275,9 +4515,9 @@ extern bfd_boolean bfd_elf64_archive_write_armap #undef ELF_MAXPAGESIZE #undef ELF_COMMONPAGESIZE -#define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_vec +#define TARGET_LITTLE_SYM mips_elf64_trad_le_vec #define TARGET_LITTLE_NAME "elf64-tradlittlemips" -#define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec +#define TARGET_BIG_SYM mips_elf64_trad_be_vec #define TARGET_BIG_NAME "elf64-tradbigmips" #define ELF_MAXPAGESIZE 0x10000 @@ -4295,26 +4535,14 @@ extern bfd_boolean bfd_elf64_archive_write_armap #undef TARGET_BIG_SYM #undef TARGET_BIG_NAME -#define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_freebsd_vec +#define TARGET_LITTLE_SYM mips_elf64_tradfbsd_le_vec #define TARGET_LITTLE_NAME "elf64-tradlittlemips-freebsd" -#define TARGET_BIG_SYM bfd_elf64_tradbigmips_freebsd_vec +#define TARGET_BIG_SYM mips_elf64_tradfbsd_be_vec #define TARGET_BIG_NAME "elf64-tradbigmips-freebsd" #undef ELF_OSABI #define ELF_OSABI ELFOSABI_FREEBSD -/* The kernel recognizes executables as valid only if they carry a - "FreeBSD" label in the ELF header. So we put this label on all - executables and (for simplicity) also all other object files. */ - -static void -elf_fbsd_post_process_headers (bfd *abfd, struct bfd_link_info *info) -{ - _bfd_elf_set_osabi (abfd, info); -} - -#undef elf_backend_post_process_headers -#define elf_backend_post_process_headers elf_fbsd_post_process_headers #undef elf64_bed #define elf64_bed elf64_fbsd_tradbed