/* MIPS-specific support for 64-bit ELF
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+ 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Ian Lance Taylor, Cygnus Support
Linker support added by Mark Mitchell, CodeSourcery, LLC.
<mark@codesourcery.com>
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
/* This file supports the 64-bit MIPS ELF ABI.
. the OldABI version is still lying around and should be removed.
*/
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "aout/ar.h"
#include "bfdlink.h"
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_reloc_status_type mips_elf64_shift6_reloc
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
-static bfd_reloc_status_type mips16_jump_reloc
- (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_reloc_status_type mips16_gprel_reloc
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
static bfd_boolean mips_elf64_assign_gp
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
+
+ /* 32 bit relocation with no addend. */
+ HOWTO (R_MIPS_GLOB_DAT, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_GLOB_DAT", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
};
/* The relocation table used for SHT_RELA sections. */
/* TLS relocations. */
EMPTY_HOWTO (R_MIPS_TLS_DTPMOD32),
EMPTY_HOWTO (R_MIPS_TLS_DTPREL32),
- EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64),
- EMPTY_HOWTO (R_MIPS_TLS_DTPREL64),
+
+ HOWTO (R_MIPS_TLS_DTPMOD64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_TLS_DTPMOD64", /* name */
+ FALSE, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_MIPS_TLS_DTPREL64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_TLS_DTPREL64", /* name */
+ FALSE, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* TLS general dynamic variable reference. */
HOWTO (R_MIPS_TLS_GD, /* type */
complain_overflow_signed, /* complain_on_overflow */
_bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_TLS_GD", /* name */
- TRUE, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
complain_overflow_signed, /* complain_on_overflow */
_bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_TLS_LDM", /* name */
- TRUE, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
complain_overflow_signed, /* complain_on_overflow */
_bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_TLS_DTPREL_HI16", /* name */
- TRUE, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
complain_overflow_signed, /* complain_on_overflow */
_bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_TLS_DTPREL_LO16", /* name */
- TRUE, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
complain_overflow_signed, /* complain_on_overflow */
_bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_TLS_GOTTPREL", /* name */
- TRUE, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
+ /* TLS IE dynamic relocations. */
EMPTY_HOWTO (R_MIPS_TLS_TPREL32),
- EMPTY_HOWTO (R_MIPS_TLS_TPREL64),
+
+ HOWTO (R_MIPS_TLS_TPREL64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_TLS_TPREL64", /* name */
+ FALSE, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* TLS thread pointer offset. */
HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
complain_overflow_signed, /* complain_on_overflow */
_bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_TLS_TPREL_HI16", /* name */
- TRUE, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
complain_overflow_signed, /* complain_on_overflow */
_bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_TLS_TPREL_LO16", /* name */
- TRUE, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
+
+ /* 32 bit relocation with no addend. */
+ HOWTO (R_MIPS_GLOB_DAT, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_GLOB_DAT", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
};
static reloc_howto_type mips16_elf64_howto_table_rel[] =
/* This needs complex overflow
detection, because the upper four
bits must match the PC. */
- mips16_jump_reloc, /* special_function */
+ _bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS16_26", /* name */
TRUE, /* partial_inplace */
0x3ffffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
- /* A placeholder for MIPS16 reference to global offset table. */
- EMPTY_HOWTO (R_MIPS16_GOT16),
+ /* A MIPS16 reference to the global offset table. */
+ HOWTO (R_MIPS16_GOT16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_got16_reloc, /* special_function */
+ "R_MIPS16_GOT16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
- /* A placeholder for MIPS16 16 bit call through global offset table. */
- EMPTY_HOWTO (R_MIPS16_CALL16),
+ /* A MIPS16 call through the global offset table. */
+ HOWTO (R_MIPS16_CALL16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS16_CALL16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* MIPS16 high 16 bits of symbol value. */
HOWTO (R_MIPS16_HI16, /* type */
/* This needs complex overflow
detection, because the upper four
bits must match the PC. */
- mips16_jump_reloc, /* special_function */
+ _bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS16_26", /* name */
FALSE, /* partial_inplace */
0x3ffffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
- /* A placeholder for MIPS16 reference to global offset table. */
- EMPTY_HOWTO (R_MIPS16_GOT16),
+ /* A MIPS16 reference to the global offset table. */
+ HOWTO (R_MIPS16_GOT16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_got16_reloc, /* special_function */
+ "R_MIPS16_GOT16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
- /* A placeholder for MIPS16 16 bit call through global offset table. */
- EMPTY_HOWTO (R_MIPS16_CALL16),
+ /* A MIPS16 call through the global offset table. */
+ HOWTO (R_MIPS16_CALL16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS16_CALL16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* MIPS16 high 16 bits of symbol value. */
HOWTO (R_MIPS16_HI16, /* type */
0x0000ffff, /* dst_mask */
TRUE); /* pcrel_offset */
\f
+/* Originally a VxWorks extension, but now used for other systems too. */
+static reloc_howto_type elf_mips_copy_howto =
+ HOWTO (R_MIPS_COPY, /* type */
+ 0, /* rightshift */
+ 0, /* this one is variable size */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_MIPS_COPY", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x0, /* dst_mask */
+ FALSE); /* pcrel_offset */
+
+/* Originally a VxWorks extension, but now used for other systems too. */
+static reloc_howto_type elf_mips_jump_slot_howto =
+ HOWTO (R_MIPS_JUMP_SLOT, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_MIPS_JUMP_SLOT", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x0, /* dst_mask */
+ FALSE); /* pcrel_offset */
+\f
/* Swap in a MIPS 64-bit Rel reloc. */
static void
error_message);
}
-/* Handle a mips16 jump. */
-
-static bfd_reloc_status_type
-mips16_jump_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
- asymbol *symbol, void *data ATTRIBUTE_UNUSED,
- asection *input_section, bfd *output_bfd,
- char **error_message ATTRIBUTE_UNUSED)
-{
- if (output_bfd != NULL
- && (symbol->flags & BSF_SECTION_SYM) == 0
- && (! reloc_entry->howto->partial_inplace
- || reloc_entry->addend == 0))
- {
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
-
- /* FIXME. */
- {
- static bfd_boolean warned;
-
- if (! warned)
- (*_bfd_error_handler)
- (_("Linking mips16 objects into %s format is not supported"),
- bfd_get_target (input_section->output_section->owner));
- warned = TRUE;
- }
-
- return bfd_reloc_undefined;
-}
-
/* Handle a mips16 GP relative reloc. */
static bfd_reloc_status_type
{
{ BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
{ BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
+ { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min },
+ { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min },
{ BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
{ BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
};
return &elf_mips_gnu_vtinherit_howto;
case BFD_RELOC_VTABLE_ENTRY:
return &elf_mips_gnu_vtentry_howto;
+ case BFD_RELOC_MIPS_COPY:
+ return &elf_mips_copy_howto;
+ case BFD_RELOC_MIPS_JUMP_SLOT:
+ return &elf_mips_jump_slot_howto;
default:
bfd_set_error (bfd_error_bad_value);
return NULL;
}
}
+static reloc_howto_type *
+bfd_elf64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < (sizeof (mips_elf64_howto_table_rela)
+ / sizeof (mips_elf64_howto_table_rela[0])); i++)
+ if (mips_elf64_howto_table_rela[i].name != NULL
+ && strcasecmp (mips_elf64_howto_table_rela[i].name, r_name) == 0)
+ return &mips_elf64_howto_table_rela[i];
+
+ for (i = 0;
+ i < (sizeof (mips16_elf64_howto_table_rela)
+ / sizeof (mips16_elf64_howto_table_rela[0]));
+ i++)
+ if (mips16_elf64_howto_table_rela[i].name != NULL
+ && strcasecmp (mips16_elf64_howto_table_rela[i].name, r_name) == 0)
+ return &mips16_elf64_howto_table_rela[i];
+
+ if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
+ return &elf_mips_gnu_vtinherit_howto;
+ if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
+ return &elf_mips_gnu_vtentry_howto;
+ if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
+ 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_copy_howto.name, r_name) == 0)
+ return &elf_mips_copy_howto;
+ if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
+ return &elf_mips_jump_slot_howto;
+
+ return NULL;
+}
+
/* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
static reloc_howto_type *
return &elf_mips_gnu_rela16_s2;
else
return &elf_mips_gnu_rel16_s2;
+ case R_MIPS_COPY:
+ return &elf_mips_copy_howto;
+ case R_MIPS_JUMP_SLOT:
+ return &elf_mips_jump_slot_howto;
default:
if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
{
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
- elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
+ elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 32);
/* pr_reg */
offset = 112;
EV_CURRENT,
bfd_elf64_write_out_phdrs,
bfd_elf64_write_shdrs_and_ehdr,
+ bfd_elf64_checksum_contents,
mips_elf64_write_relocs,
bfd_elf64_swap_symbol_in,
bfd_elf64_swap_symbol_out,
};
#define ELF_ARCH bfd_arch_mips
+#define ELF_TARGET_ID MIPS_ELF_DATA
#define ELF_MACHINE_CODE EM_MIPS
#define elf_backend_collect TRUE
#define elf_backend_create_dynamic_sections \
_bfd_mips_elf_create_dynamic_sections
#define elf_backend_check_relocs _bfd_mips_elf_check_relocs
+#define elf_backend_merge_symbol_attribute \
+ _bfd_mips_elf_merge_symbol_attribute
+#define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag
#define elf_backend_adjust_dynamic_symbol \
_bfd_mips_elf_adjust_dynamic_symbol
#define elf_backend_always_size_sections \
_bfd_mips_elf_always_size_sections
#define elf_backend_size_dynamic_sections \
_bfd_mips_elf_size_dynamic_sections
+#define elf_backend_init_index_section _bfd_elf_init_1_index_section
#define elf_backend_relocate_section _bfd_mips_elf_relocate_section
#define elf_backend_finish_dynamic_symbol \
_bfd_mips_elf_finish_dynamic_symbol
#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
#define elf_backend_copy_indirect_symbol \
_bfd_mips_elf_copy_indirect_symbol
-#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
#define elf_backend_ignore_discarded_relocs \
_bfd_mips_elf_ignore_discarded_relocs
#define elf_backend_mips_irix_compat elf64_mips_irix_compat
#define elf_backend_may_use_rel_p 1
#define elf_backend_may_use_rela_p 1
#define elf_backend_default_use_rela_p 1
+#define elf_backend_rela_plts_and_copies_p 0
+#define elf_backend_plt_readonly 1
+#define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val
+
+#define elf_backend_sign_extend_vma TRUE
#define elf_backend_write_section _bfd_mips_elf_write_section
#define bfd_elf64_archive_truncate_arname \
_bfd_archive_coff_truncate_arname
#define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr
+#define bfd_elf64_archive_write_ar_hdr _bfd_archive_coff_write_ar_hdr
#define bfd_elf64_archive_openr_next_archived_file \
_bfd_archive_coff_openr_next_archived_file
#define bfd_elf64_archive_get_elt_at_index \
#define TARGET_BIG_SYM bfd_elf64_bigmips_vec
#define TARGET_BIG_NAME "elf64-bigmips"
-/* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
- a value of 0x1000, and we are compatible.
- FIXME: How does this affect NewABI? */
-#define ELF_MAXPAGESIZE 0x1000
+#define ELF_MAXPAGESIZE 0x10000
+#define ELF_COMMONPAGESIZE 0x1000
#include "elf64-target.h"
#undef TARGET_BIG_NAME
#undef ELF_MAXPAGESIZE
+#undef ELF_COMMONPAGESIZE
#define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_vec
#define TARGET_LITTLE_NAME "elf64-tradlittlemips"
#define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec
#define TARGET_BIG_NAME "elf64-tradbigmips"
-/* The SVR4 MIPS ABI says that this should be 0x10000, and Linux uses
- page sizes of up to that limit, so we need to respect it. */
#define ELF_MAXPAGESIZE 0x10000
+#define ELF_COMMONPAGESIZE 0x1000
#define elf64_bed elf64_tradbed
/* Include the target file again for this target. */
projects / deliverable / binutils-gdb.git / blobdiff