diff options
Diffstat (limited to 'bfd/elf64-alpha.c')
| -rw-r--r-- | bfd/elf64-alpha.c | 83 |
1 files changed, 82 insertions, 1 deletions
diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c index ef6e853..6df126a 100644 --- a/bfd/elf64-alpha.c +++ b/bfd/elf64-alpha.c @@ -732,7 +732,22 @@ static reloc_howto_type elf64_alpha_howto_table[] = false, 0, 0, - true) + true), + + /* A 21 bit branch that adjusts for gp loads. */ + HOWTO (R_ALPHA_BRSGP, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 21, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "BRSGP", /* name */ + false, /* partial_inplace */ + 0x1fffff, /* src_mask */ + 0x1fffff, /* dst_mask */ + true), /* pcrel_offset */ }; /* A relocation function which doesn't do anything. */ @@ -886,6 +901,7 @@ static const struct elf_reloc_map elf64_alpha_reloc_map[] = {BFD_RELOC_ALPHA_GPREL_HI16, R_ALPHA_GPRELHIGH}, {BFD_RELOC_ALPHA_GPREL_LO16, R_ALPHA_GPRELLOW}, {BFD_RELOC_GPREL16, R_ALPHA_GPREL16}, + {BFD_RELOC_ALPHA_BRSGP, R_ALPHA_BRSGP}, }; /* Given a BFD reloc type, return a HOWTO structure. */ @@ -2414,6 +2430,7 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) case R_ALPHA_GPREL32: case R_ALPHA_GPRELHIGH: case R_ALPHA_GPRELLOW: + case R_ALPHA_BRSGP: /* We don't actually use the .got here, but the sections must be created before the linker maps input sections to output sections. */ @@ -3555,6 +3572,70 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, addend -= 4; goto default_reloc; + case R_ALPHA_BRSGP: + { + int other; + const char *name; + + /* The regular PC-relative stuff measures from the start of + the instruction rather than the end. */ + addend -= 4; + + /* The source and destination gp must be the same. */ + if (h != NULL + && gotobj != alpha_elf_tdata (sec->owner)->gotobj) + { + if (h != NULL) + name = h->root.root.root.string; + else + { + name = (bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name)); + if (name == NULL) + name = _("<unknown>"); + else if (name[0] == 0) + name = bfd_section_name (input_bfd, sec); + } + (*_bfd_error_handler) + (_("%s: change in gp: BRSGP %s"), + bfd_archive_filename (input_bfd), name); + ret_val = false; + } + + /* The symbol should be marked either NOPV or STD_GPLOAD. */ + if (h != NULL) + other = h->root.other; + else + other = sym->st_other; + switch (other & STO_ALPHA_STD_GPLOAD) + { + case STO_ALPHA_NOPV: + break; + case STO_ALPHA_STD_GPLOAD: + addend += 8; + break; + default: + if (h != NULL) + name = h->root.root.root.string; + else + { + name = (bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name)); + if (name == NULL) + name = _("<unknown>"); + else if (name[0] == 0) + name = bfd_section_name (input_bfd, sec); + } + (*_bfd_error_handler) + (_("%s: !samegp reloc against symbol without .prologue: %s"), + bfd_archive_filename (input_bfd), name); + ret_val = false; + break; + } + + goto default_reloc; + } + case R_ALPHA_REFLONG: case R_ALPHA_REFQUAD: { |