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elf64-alpha.c (89862) elf64-alpha.c (91049)
1/* Alpha specific support for 64-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4 Contributed by Richard Henderson <rth@tamu.edu>.
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify

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14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
1/* Alpha specific support for 64-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4 Contributed by Richard Henderson <rth@tamu.edu>.
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify

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14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22/* $FreeBSD: head/contrib/binutils/bfd/elf64-alpha.c 89862 2002-01-27 12:08:15Z obrien $ */
22/* $FreeBSD: head/contrib/binutils/bfd/elf64-alpha.c 91049 2002-02-22 04:46:20Z obrien $ */
23
24/* We need a published ABI spec for this. Until one comes out, don't
25 assume this'll remain unchanged forever. */
26
27#include "bfd.h"
28#include "sysdep.h"
29#include "libbfd.h"
30#include "elf-bfd.h"

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729 false,
730 0,
731 complain_overflow_dont,
732 bfd_elf_generic_reloc,
733 "RELATIVE",
734 false,
735 0,
736 0,
23
24/* We need a published ABI spec for this. Until one comes out, don't
25 assume this'll remain unchanged forever. */
26
27#include "bfd.h"
28#include "sysdep.h"
29#include "libbfd.h"
30#include "elf-bfd.h"

--- 698 unchanged lines hidden (view full) ---

729 false,
730 0,
731 complain_overflow_dont,
732 bfd_elf_generic_reloc,
733 "RELATIVE",
734 false,
735 0,
736 0,
737 true)
737 true),
738
739 /* A 21 bit branch that adjusts for gp loads. */
740 HOWTO (R_ALPHA_BRSGP, /* type */
741 2, /* rightshift */
742 2, /* size (0 = byte, 1 = short, 2 = long) */
743 21, /* bitsize */
744 true, /* pc_relative */
745 0, /* bitpos */
746 complain_overflow_signed, /* complain_on_overflow */
747 0, /* special_function */
748 "BRSGP", /* name */
749 false, /* partial_inplace */
750 0x1fffff, /* src_mask */
751 0x1fffff, /* dst_mask */
752 true), /* pcrel_offset */
738};
739
740/* A relocation function which doesn't do anything. */
741
742static bfd_reloc_status_type
743elf64_alpha_reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message)
744 bfd *abfd ATTRIBUTE_UNUSED;
745 arelent *reloc;

--- 137 unchanged lines hidden (view full) ---

883 {BFD_RELOC_23_PCREL_S2, R_ALPHA_BRADDR},
884 {BFD_RELOC_ALPHA_HINT, R_ALPHA_HINT},
885 {BFD_RELOC_16_PCREL, R_ALPHA_SREL16},
886 {BFD_RELOC_32_PCREL, R_ALPHA_SREL32},
887 {BFD_RELOC_64_PCREL, R_ALPHA_SREL64},
888 {BFD_RELOC_ALPHA_GPREL_HI16, R_ALPHA_GPRELHIGH},
889 {BFD_RELOC_ALPHA_GPREL_LO16, R_ALPHA_GPRELLOW},
890 {BFD_RELOC_GPREL16, R_ALPHA_GPREL16},
753};
754
755/* A relocation function which doesn't do anything. */
756
757static bfd_reloc_status_type
758elf64_alpha_reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message)
759 bfd *abfd ATTRIBUTE_UNUSED;
760 arelent *reloc;

--- 137 unchanged lines hidden (view full) ---

898 {BFD_RELOC_23_PCREL_S2, R_ALPHA_BRADDR},
899 {BFD_RELOC_ALPHA_HINT, R_ALPHA_HINT},
900 {BFD_RELOC_16_PCREL, R_ALPHA_SREL16},
901 {BFD_RELOC_32_PCREL, R_ALPHA_SREL32},
902 {BFD_RELOC_64_PCREL, R_ALPHA_SREL64},
903 {BFD_RELOC_ALPHA_GPREL_HI16, R_ALPHA_GPRELHIGH},
904 {BFD_RELOC_ALPHA_GPREL_LO16, R_ALPHA_GPRELLOW},
905 {BFD_RELOC_GPREL16, R_ALPHA_GPREL16},
906 {BFD_RELOC_ALPHA_BRSGP, R_ALPHA_BRSGP},
891};
892
893/* Given a BFD reloc type, return a HOWTO structure. */
894
895static reloc_howto_type *
896elf64_alpha_bfd_reloc_type_lookup (abfd, code)
897 bfd *abfd ATTRIBUTE_UNUSED;
898 bfd_reloc_code_real_type code;

--- 1514 unchanged lines hidden (view full) ---

2413 }
2414 /* FALLTHRU */
2415
2416 case R_ALPHA_GPDISP:
2417 case R_ALPHA_GPREL16:
2418 case R_ALPHA_GPREL32:
2419 case R_ALPHA_GPRELHIGH:
2420 case R_ALPHA_GPRELLOW:
907};
908
909/* Given a BFD reloc type, return a HOWTO structure. */
910
911static reloc_howto_type *
912elf64_alpha_bfd_reloc_type_lookup (abfd, code)
913 bfd *abfd ATTRIBUTE_UNUSED;
914 bfd_reloc_code_real_type code;

--- 1514 unchanged lines hidden (view full) ---

2429 }
2430 /* FALLTHRU */
2431
2432 case R_ALPHA_GPDISP:
2433 case R_ALPHA_GPREL16:
2434 case R_ALPHA_GPREL32:
2435 case R_ALPHA_GPRELHIGH:
2436 case R_ALPHA_GPRELLOW:
2437 case R_ALPHA_BRSGP:
2421 /* We don't actually use the .got here, but the sections must
2422 be created before the linker maps input sections to output
2423 sections. */
2424 if (!got_created)
2425 {
2426 if (!elf64_alpha_create_got_section (abfd, info))
2427 return false;
2428

--- 1125 unchanged lines hidden (view full) ---

3554 /* FALLTHRU */
3555
3556 case R_ALPHA_BRADDR:
3557 /* The regular PC-relative stuff measures from the start of
3558 the instruction rather than the end. */
3559 addend -= 4;
3560 goto default_reloc;
3561
2438 /* We don't actually use the .got here, but the sections must
2439 be created before the linker maps input sections to output
2440 sections. */
2441 if (!got_created)
2442 {
2443 if (!elf64_alpha_create_got_section (abfd, info))
2444 return false;
2445

--- 1125 unchanged lines hidden (view full) ---

3571 /* FALLTHRU */
3572
3573 case R_ALPHA_BRADDR:
3574 /* The regular PC-relative stuff measures from the start of
3575 the instruction rather than the end. */
3576 addend -= 4;
3577 goto default_reloc;
3578
3579 case R_ALPHA_BRSGP:
3580 {
3581 int other;
3582 const char *name;
3583
3584 /* The regular PC-relative stuff measures from the start of
3585 the instruction rather than the end. */
3586 addend -= 4;
3587
3588 /* The source and destination gp must be the same. Note that
3589 the source will always have an assigned gp, since we forced
3590 one in check_relocs, but that the destination may not, as
3591 it might not have had any relocations at all. Also take
3592 care not to crash if H is an undefined symbol. */
3593 if (h != NULL && sec != NULL
3594 && alpha_elf_tdata (sec->owner)->gotobj
3595 && gotobj != alpha_elf_tdata (sec->owner)->gotobj)
3596 {
3597 (*_bfd_error_handler)
3598 (_("%s: change in gp: BRSGP %s"),
3599 bfd_archive_filename (input_bfd), h->root.root.root.string);
3600 ret_val = false;
3601 }
3602
3603 /* The symbol should be marked either NOPV or STD_GPLOAD. */
3604 if (h != NULL)
3605 other = h->root.other;
3606 else
3607 other = sym->st_other;
3608 switch (other & STO_ALPHA_STD_GPLOAD)
3609 {
3610 case STO_ALPHA_NOPV:
3611 break;
3612 case STO_ALPHA_STD_GPLOAD:
3613 addend += 8;
3614 break;
3615 default:
3616 if (h != NULL)
3617 name = h->root.root.root.string;
3618 else
3619 {
3620 name = (bfd_elf_string_from_elf_section
3621 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3622 if (name == NULL)
3623 name = _("<unknown>");
3624 else if (name[0] == 0)
3625 name = bfd_section_name (input_bfd, sec);
3626 }
3627 (*_bfd_error_handler)
3628 (_("%s: !samegp reloc against symbol without .prologue: %s"),
3629 bfd_archive_filename (input_bfd), name);
3630 ret_val = false;
3631 break;
3632 }
3633
3634 goto default_reloc;
3635 }
3636
3562 case R_ALPHA_REFLONG:
3563 case R_ALPHA_REFQUAD:
3564 {
3565 Elf_Internal_Rela outrel;
3566
3567 /* Careful here to remember RELATIVE relocations for global
3568 variables for symbolic shared objects. */
3569

--- 25 unchanged lines hidden (view full) ---

3595
3596 srel = bfd_get_section_by_name (dynobj, name);
3597 BFD_ASSERT(srel != NULL);
3598 }
3599
3600 outrel.r_offset =
3601 _bfd_elf_section_offset (output_bfd, info, input_section,
3602 rel->r_offset);
3637 case R_ALPHA_REFLONG:
3638 case R_ALPHA_REFQUAD:
3639 {
3640 Elf_Internal_Rela outrel;
3641
3642 /* Careful here to remember RELATIVE relocations for global
3643 variables for symbolic shared objects. */
3644

--- 25 unchanged lines hidden (view full) ---

3670
3671 srel = bfd_get_section_by_name (dynobj, name);
3672 BFD_ASSERT(srel != NULL);
3673 }
3674
3675 outrel.r_offset =
3676 _bfd_elf_section_offset (output_bfd, info, input_section,
3677 rel->r_offset);
3603 if (outrel.r_offset != (bfd_vma) -1)
3678 if ((outrel.r_offset | 1) != (bfd_vma) -1)
3604 outrel.r_offset += (input_section->output_section->vma
3605 + input_section->output_offset);
3606 else
3607 memset (&outrel, 0, sizeof outrel);
3608
3609 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
3610 ((Elf64_External_Rela *)
3611 srel->contents)

--- 737 unchanged lines hidden --- 		3679 outrel.r_offset += (input_section->output_section->vma
3680 + input_section->output_offset);
3681 else
3682 memset (&outrel, 0, sizeof outrel);
3683
3684 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
3685 ((Elf64_External_Rela *)
3686 srel->contents)

--- 737 unchanged lines hidden ---