* elf64-alpha.c (elf64_alpha_howto): Add R_ALPHA_BRSGP.
(elf64_alpha_reloc_map, elf64_alpha_check_relocs): Likewise.
(elf64_alpha_relocate_section): Likewise.
* reloc.c (BFD_RELOC_ALPHA_BRSGP): New.
* bfd-in2.h, libbfd.h: Rebuild.
This commit is contained in:
Richard Henderson
parent
da966255a5
commit
7793f4d007
5 changed files with 103 additions and 1 deletions
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@ -1,3 +1,11 @@
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2002-02-09 Richard Henderson <rth@redhat.com>
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* elf64-alpha.c (elf64_alpha_howto): Add R_ALPHA_BRSGP.
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(elf64_alpha_reloc_map, elf64_alpha_check_relocs): Likewise.
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(elf64_alpha_relocate_section): Likewise.
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* reloc.c (BFD_RELOC_ALPHA_BRSGP): New.
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* bfd-in2.h, libbfd.h: Rebuild.
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2002-02-09 Hans-Peter Nilsson <hp@bitrange.com>
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* elf64-mmix.c (_bfd_mmix_finalize_linker_allocated_gregs): Check
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@ -2136,6 +2136,11 @@ GP register. */
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BFD_RELOC_ALPHA_GPREL_HI16,
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BFD_RELOC_ALPHA_GPREL_LO16,
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/* Like BFD_RELOC_23_PCREL_S2, except that the source and target must
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share a common GP, and the target address is adjusted for
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STO_ALPHA_STD_GPLOAD. */
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BFD_RELOC_ALPHA_BRSGP,
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/* Bits 27..2 of the relocation address shifted right 2 bits;
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simple reloc otherwise. */
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BFD_RELOC_MIPS_JMP,
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@ -732,7 +732,22 @@ static reloc_howto_type elf64_alpha_howto_table[] =
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false,
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0,
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0,
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true)
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true),
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/* A 21 bit branch that adjusts for gp loads. */
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HOWTO (R_ALPHA_BRSGP, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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21, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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0, /* special_function */
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"BRSGP", /* name */
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false, /* partial_inplace */
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0x1fffff, /* src_mask */
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0x1fffff, /* dst_mask */
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true), /* pcrel_offset */
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};
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/* A relocation function which doesn't do anything. */
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@ -886,6 +901,7 @@ static const struct elf_reloc_map elf64_alpha_reloc_map[] =
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{BFD_RELOC_ALPHA_GPREL_HI16, R_ALPHA_GPRELHIGH},
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{BFD_RELOC_ALPHA_GPREL_LO16, R_ALPHA_GPRELLOW},
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{BFD_RELOC_GPREL16, R_ALPHA_GPREL16},
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{BFD_RELOC_ALPHA_BRSGP, R_ALPHA_BRSGP},
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};
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/* Given a BFD reloc type, return a HOWTO structure. */
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@ -2414,6 +2430,7 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs)
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case R_ALPHA_GPREL32:
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case R_ALPHA_GPRELHIGH:
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case R_ALPHA_GPRELLOW:
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case R_ALPHA_BRSGP:
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/* We don't actually use the .got here, but the sections must
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be created before the linker maps input sections to output
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sections. */
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@ -3555,6 +3572,70 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section,
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addend -= 4;
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goto default_reloc;
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case R_ALPHA_BRSGP:
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{
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int other;
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const char *name;
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/* The regular PC-relative stuff measures from the start of
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the instruction rather than the end. */
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addend -= 4;
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/* The source and destination gp must be the same. */
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if (h != NULL
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&& gotobj != alpha_elf_tdata (sec->owner)->gotobj)
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{
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if (h != NULL)
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name = h->root.root.root.string;
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else
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{
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name = (bfd_elf_string_from_elf_section
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(input_bfd, symtab_hdr->sh_link, sym->st_name));
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if (name == NULL)
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name = _("<unknown>");
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else if (name[0] == 0)
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name = bfd_section_name (input_bfd, sec);
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}
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(*_bfd_error_handler)
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(_("%s: change in gp: BRSGP %s"),
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bfd_archive_filename (input_bfd), name);
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ret_val = false;
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}
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/* The symbol should be marked either NOPV or STD_GPLOAD. */
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if (h != NULL)
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other = h->root.other;
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else
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other = sym->st_other;
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switch (other & STO_ALPHA_STD_GPLOAD)
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{
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case STO_ALPHA_NOPV:
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break;
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case STO_ALPHA_STD_GPLOAD:
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addend += 8;
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break;
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default:
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if (h != NULL)
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name = h->root.root.root.string;
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else
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{
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name = (bfd_elf_string_from_elf_section
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(input_bfd, symtab_hdr->sh_link, sym->st_name));
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if (name == NULL)
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name = _("<unknown>");
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else if (name[0] == 0)
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name = bfd_section_name (input_bfd, sec);
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}
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(*_bfd_error_handler)
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(_("%s: !samegp reloc against symbol without .prologue: %s"),
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bfd_archive_filename (input_bfd), name);
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ret_val = false;
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break;
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}
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goto default_reloc;
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}
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case R_ALPHA_REFLONG:
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case R_ALPHA_REFQUAD:
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{
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@ -721,6 +721,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
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"BFD_RELOC_ALPHA_CODEADDR",
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"BFD_RELOC_ALPHA_GPREL_HI16",
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"BFD_RELOC_ALPHA_GPREL_LO16",
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"BFD_RELOC_ALPHA_BRSGP",
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"BFD_RELOC_MIPS_JMP",
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"BFD_RELOC_MIPS16_JMP",
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"BFD_RELOC_MIPS16_GPREL",
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@ -1955,6 +1955,13 @@ ENUMDOC
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The GPREL_HI/LO relocations together form a 32-bit offset from the
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GP register.
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ENUM
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BFD_RELOC_ALPHA_BRSGP
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ENUMDOC
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Like BFD_RELOC_23_PCREL_S2, except that the source and target must
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share a common GP, and the target address is adjusted for
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STO_ALPHA_STD_GPLOAD.
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ENUM
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BFD_RELOC_MIPS_JMP
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ENUMDOC
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