/* Intel 80386/80486-specific support for 32-bit ELF
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+ 2003, 2004 Free Software Foundation, Inc.
-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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
-static reloc_howto_type *elf_i386_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void elf_i386_info_to_howto
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
-static void elf_i386_info_to_howto_rel
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
-static boolean elf_i386_is_local_label_name
- PARAMS ((bfd *, const char *));
-static boolean elf_i386_grok_prstatus
- PARAMS ((bfd *abfd, Elf_Internal_Note *note));
-static boolean elf_i386_grok_psinfo
- PARAMS ((bfd *abfd, Elf_Internal_Note *note));
-static struct bfd_hash_entry *link_hash_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static struct bfd_link_hash_table *elf_i386_link_hash_table_create
- PARAMS ((bfd *));
-static boolean create_got_section
- PARAMS((bfd *, struct bfd_link_info *));
-static boolean elf_i386_create_dynamic_sections
- PARAMS((bfd *, struct bfd_link_info *));
-static void elf_i386_copy_indirect_symbol
- PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *));
-static int elf_i386_tls_transition
- PARAMS ((struct bfd_link_info *, int, int));
-
-static boolean elf_i386_mkobject
- PARAMS((bfd *));
-static boolean elf_i386_object_p
- PARAMS((bfd *));
-static boolean elf_i386_check_relocs
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static asection *elf_i386_gc_mark_hook
- PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
- struct elf_link_hash_entry *, Elf_Internal_Sym *));
-static boolean elf_i386_gc_sweep_hook
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static boolean elf_i386_adjust_dynamic_symbol
- PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
-static boolean allocate_dynrelocs
- PARAMS ((struct elf_link_hash_entry *, PTR));
-static boolean readonly_dynrelocs
- PARAMS ((struct elf_link_hash_entry *, PTR));
-static boolean elf_i386_fake_sections
- PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
-static boolean elf_i386_size_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_vma dtpoff_base
- PARAMS ((struct bfd_link_info *));
-static bfd_vma tpoff
- PARAMS ((struct bfd_link_info *, bfd_vma));
-static boolean elf_i386_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-static boolean elf_i386_finish_dynamic_symbol
- PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
- Elf_Internal_Sym *));
-static enum elf_reloc_type_class elf_i386_reloc_type_class
- PARAMS ((const Elf_Internal_Rela *));
-static boolean elf_i386_finish_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-
-#define USE_REL 1 /* 386 uses REL relocations instead of RELA */
+/* 386 uses REL relocations instead of RELA. */
+#define USE_REL 1
#include "elf/i386.h"
static reloc_howto_type elf_howto_table[]=
{
- HOWTO(R_386_NONE, 0, 0, 0, false, 0, complain_overflow_bitfield,
+ HOWTO(R_386_NONE, 0, 0, 0, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_NONE",
- true, 0x00000000, 0x00000000, false),
- HOWTO(R_386_32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0x00000000, 0x00000000, FALSE),
+ HOWTO(R_386_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_PC32, 0, 2, 32, true, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_PC32",
- true, 0xffffffff, 0xffffffff, true),
- HOWTO(R_386_GOT32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, TRUE),
+ HOWTO(R_386_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_GOT32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_PLT32, 0, 2, 32, true, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_PLT32",
- true, 0xffffffff, 0xffffffff, true),
- HOWTO(R_386_COPY, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, TRUE),
+ HOWTO(R_386_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_COPY",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_GLOB_DAT, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_GLOB_DAT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_GLOB_DAT",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_JUMP_SLOT, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_JUMP_SLOT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_JUMP_SLOT",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_RELATIVE, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_RELATIVE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_RELATIVE",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_GOTOFF, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_GOTOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_GOTOFF",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_GOTPC, 0, 2, 32, true, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_GOTPC, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_GOTPC",
- true, 0xffffffff, 0xffffffff, true),
+ TRUE, 0xffffffff, 0xffffffff, TRUE),
/* We have a gap in the reloc numbers here.
R_386_standard counts the number up to this point, and
R_386_ext_offset is the value to subtract from a reloc type of
R_386_16 thru R_386_PC8 to form an index into this table. */
-#define R_386_standard ((unsigned int) R_386_GOTPC + 1)
-#define R_386_ext_offset ((unsigned int) R_386_TLS_LE - R_386_standard)
-
- /* The remaining relocs are a GNU extension. */
- HOWTO(R_386_TLS_LE, 0, 2, 32, false, 0, complain_overflow_bitfield,
+#define R_386_standard (R_386_GOTPC + 1)
+#define R_386_ext_offset (R_386_TLS_TPOFF - R_386_standard)
+
+ /* These relocs are a GNU extension. */
+ HOWTO(R_386_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_386_TLS_TPOFF",
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_IE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_386_TLS_IE",
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_GOTIE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_386_TLS_GOTIE",
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_LE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_LE",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_TLS_GD, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_GD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_GD",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_TLS_LDM, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_LDM, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_LDM",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_16, 0, 1, 16, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_16",
- true, 0xffff, 0xffff, false),
- HOWTO(R_386_PC16, 0, 1, 16, true, 0, complain_overflow_bitfield,
+ TRUE, 0xffff, 0xffff, FALSE),
+ HOWTO(R_386_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_PC16",
- true, 0xffff, 0xffff, true),
- HOWTO(R_386_8, 0, 0, 8, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffff, 0xffff, TRUE),
+ HOWTO(R_386_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_8",
- true, 0xff, 0xff, false),
- HOWTO(R_386_PC8, 0, 0, 8, true, 0, complain_overflow_signed,
+ TRUE, 0xff, 0xff, FALSE),
+ HOWTO(R_386_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_386_PC8",
- true, 0xff, 0xff, true),
+ TRUE, 0xff, 0xff, TRUE),
-#define R_386_ext ((unsigned int) R_386_PC8 + 1 - R_386_ext_offset)
-#define R_386_tls_offset ((unsigned int) R_386_TLS_LDO_32 - R_386_ext)
+#define R_386_ext (R_386_PC8 + 1 - R_386_ext_offset)
+#define R_386_tls_offset (R_386_TLS_LDO_32 - R_386_ext)
/* These are common with Solaris TLS implementation. */
- HOWTO(R_386_TLS_LDO_32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ HOWTO(R_386_TLS_LDO_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_LDO_32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_TLS_IE_32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_IE_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_IE_32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_TLS_LE_32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_LE_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_LE_32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_TLS_DTPMOD32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_DTPMOD32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_DTPMOD32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_TLS_DTPOFF32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_DTPOFF32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO(R_386_TLS_TPOFF32, 0, 2, 32, false, 0, complain_overflow_bitfield,
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(R_386_TLS_TPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_386_TLS_TPOFF32",
- true, 0xffffffff, 0xffffffff, false),
+ TRUE, 0xffffffff, 0xffffffff, FALSE),
/* Another gap. */
-#define R_386_tls ((unsigned int) R_386_TLS_TPOFF32 + 1 - R_386_tls_offset)
-#define R_386_vt_offset ((unsigned int) R_386_GNU_VTINHERIT - R_386_tls)
+#define R_386_tls (R_386_TLS_TPOFF32 + 1 - R_386_tls_offset)
+#define R_386_vt_offset (R_386_GNU_VTINHERIT - R_386_tls)
/* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_386_GNU_VTINHERIT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
NULL, /* special_function */
"R_386_GNU_VTINHERIT", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* GNU extension to record C++ vtable member usage. */
HOWTO (R_386_GNU_VTENTRY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
"R_386_GNU_VTENTRY", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false) /* pcrel_offset */
+ FALSE) /* pcrel_offset */
-#define R_386_vt ((unsigned int) R_386_GNU_VTENTRY + 1 - R_386_vt_offset)
+#define R_386_vt (R_386_GNU_VTENTRY + 1 - R_386_vt_offset)
};
#ifdef DEBUG_GEN_RELOC
-#define TRACE(str) fprintf (stderr, "i386 bfd reloc lookup %d (%s)\n", code, str)
+#define TRACE(str) \
+ fprintf (stderr, "i386 bfd reloc lookup %d (%s)\n", code, str)
#else
#define TRACE(str)
#endif
static reloc_howto_type *
-elf_i386_reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+elf_i386_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
switch (code)
{
case BFD_RELOC_NONE:
TRACE ("BFD_RELOC_NONE");
- return &elf_howto_table[(unsigned int) R_386_NONE ];
+ return &elf_howto_table[R_386_NONE];
case BFD_RELOC_32:
TRACE ("BFD_RELOC_32");
- return &elf_howto_table[(unsigned int) R_386_32 ];
+ return &elf_howto_table[R_386_32];
case BFD_RELOC_CTOR:
TRACE ("BFD_RELOC_CTOR");
- return &elf_howto_table[(unsigned int) R_386_32 ];
+ return &elf_howto_table[R_386_32];
case BFD_RELOC_32_PCREL:
TRACE ("BFD_RELOC_PC32");
- return &elf_howto_table[(unsigned int) R_386_PC32 ];
+ return &elf_howto_table[R_386_PC32];
case BFD_RELOC_386_GOT32:
TRACE ("BFD_RELOC_386_GOT32");
- return &elf_howto_table[(unsigned int) R_386_GOT32 ];
+ return &elf_howto_table[R_386_GOT32];
case BFD_RELOC_386_PLT32:
TRACE ("BFD_RELOC_386_PLT32");
- return &elf_howto_table[(unsigned int) R_386_PLT32 ];
+ return &elf_howto_table[R_386_PLT32];
case BFD_RELOC_386_COPY:
TRACE ("BFD_RELOC_386_COPY");
- return &elf_howto_table[(unsigned int) R_386_COPY ];
+ return &elf_howto_table[R_386_COPY];
case BFD_RELOC_386_GLOB_DAT:
TRACE ("BFD_RELOC_386_GLOB_DAT");
- return &elf_howto_table[(unsigned int) R_386_GLOB_DAT ];
+ return &elf_howto_table[R_386_GLOB_DAT];
case BFD_RELOC_386_JUMP_SLOT:
TRACE ("BFD_RELOC_386_JUMP_SLOT");
- return &elf_howto_table[(unsigned int) R_386_JUMP_SLOT ];
+ return &elf_howto_table[R_386_JUMP_SLOT];
case BFD_RELOC_386_RELATIVE:
TRACE ("BFD_RELOC_386_RELATIVE");
- return &elf_howto_table[(unsigned int) R_386_RELATIVE ];
+ return &elf_howto_table[R_386_RELATIVE];
case BFD_RELOC_386_GOTOFF:
TRACE ("BFD_RELOC_386_GOTOFF");
- return &elf_howto_table[(unsigned int) R_386_GOTOFF ];
+ return &elf_howto_table[R_386_GOTOFF];
case BFD_RELOC_386_GOTPC:
TRACE ("BFD_RELOC_386_GOTPC");
- return &elf_howto_table[(unsigned int) R_386_GOTPC ];
+ return &elf_howto_table[R_386_GOTPC];
+
+ /* These relocs are a GNU extension. */
+ case BFD_RELOC_386_TLS_TPOFF:
+ TRACE ("BFD_RELOC_386_TLS_TPOFF");
+ return &elf_howto_table[R_386_TLS_TPOFF - R_386_ext_offset];
+
+ case BFD_RELOC_386_TLS_IE:
+ TRACE ("BFD_RELOC_386_TLS_IE");
+ return &elf_howto_table[R_386_TLS_IE - R_386_ext_offset];
+
+ case BFD_RELOC_386_TLS_GOTIE:
+ TRACE ("BFD_RELOC_386_TLS_GOTIE");
+ return &elf_howto_table[R_386_TLS_GOTIE - R_386_ext_offset];
- /* The remaining relocs are a GNU extension. */
case BFD_RELOC_386_TLS_LE:
TRACE ("BFD_RELOC_386_TLS_LE");
- return &elf_howto_table[(unsigned int) R_386_TLS_LE - R_386_ext_offset];
+ return &elf_howto_table[R_386_TLS_LE - R_386_ext_offset];
case BFD_RELOC_386_TLS_GD:
TRACE ("BFD_RELOC_386_TLS_GD");
- return &elf_howto_table[(unsigned int) R_386_TLS_GD - R_386_ext_offset];
+ return &elf_howto_table[R_386_TLS_GD - R_386_ext_offset];
case BFD_RELOC_386_TLS_LDM:
TRACE ("BFD_RELOC_386_TLS_LDM");
- return &elf_howto_table[(unsigned int) R_386_TLS_LDM - R_386_ext_offset];
+ return &elf_howto_table[R_386_TLS_LDM - R_386_ext_offset];
case BFD_RELOC_16:
TRACE ("BFD_RELOC_16");
- return &elf_howto_table[(unsigned int) R_386_16 - R_386_ext_offset];
+ return &elf_howto_table[R_386_16 - R_386_ext_offset];
case BFD_RELOC_16_PCREL:
TRACE ("BFD_RELOC_16_PCREL");
- return &elf_howto_table[(unsigned int) R_386_PC16 - R_386_ext_offset];
+ return &elf_howto_table[R_386_PC16 - R_386_ext_offset];
case BFD_RELOC_8:
TRACE ("BFD_RELOC_8");
- return &elf_howto_table[(unsigned int) R_386_8 - R_386_ext_offset];
+ return &elf_howto_table[R_386_8 - R_386_ext_offset];
case BFD_RELOC_8_PCREL:
TRACE ("BFD_RELOC_8_PCREL");
- return &elf_howto_table[(unsigned int) R_386_PC8 - R_386_ext_offset];
+ return &elf_howto_table[R_386_PC8 - R_386_ext_offset];
/* Common with Sun TLS implementation. */
case BFD_RELOC_386_TLS_LDO_32:
TRACE ("BFD_RELOC_386_TLS_LDO_32");
- return &elf_howto_table[(unsigned int) R_386_TLS_LDO_32 - R_386_tls_offset];
+ return &elf_howto_table[R_386_TLS_LDO_32 - R_386_tls_offset];
case BFD_RELOC_386_TLS_IE_32:
TRACE ("BFD_RELOC_386_TLS_IE_32");
- return &elf_howto_table[(unsigned int) R_386_TLS_IE_32 - R_386_tls_offset];
+ return &elf_howto_table[R_386_TLS_IE_32 - R_386_tls_offset];
case BFD_RELOC_386_TLS_LE_32:
TRACE ("BFD_RELOC_386_TLS_LE_32");
- return &elf_howto_table[(unsigned int) R_386_TLS_LE_32 - R_386_tls_offset];
+ return &elf_howto_table[R_386_TLS_LE_32 - R_386_tls_offset];
case BFD_RELOC_386_TLS_DTPMOD32:
TRACE ("BFD_RELOC_386_TLS_DTPMOD32");
- return &elf_howto_table[(unsigned int) R_386_TLS_DTPMOD32 - R_386_tls_offset];
+ return &elf_howto_table[R_386_TLS_DTPMOD32 - R_386_tls_offset];
case BFD_RELOC_386_TLS_DTPOFF32:
TRACE ("BFD_RELOC_386_TLS_DTPOFF32");
- return &elf_howto_table[(unsigned int) R_386_TLS_DTPOFF32 - R_386_tls_offset];
+ return &elf_howto_table[R_386_TLS_DTPOFF32 - R_386_tls_offset];
case BFD_RELOC_386_TLS_TPOFF32:
TRACE ("BFD_RELOC_386_TLS_TPOFF32");
- return &elf_howto_table[(unsigned int) R_386_TLS_TPOFF32 - R_386_tls_offset];
+ return &elf_howto_table[R_386_TLS_TPOFF32 - R_386_tls_offset];
case BFD_RELOC_VTABLE_INHERIT:
TRACE ("BFD_RELOC_VTABLE_INHERIT");
- return &elf_howto_table[(unsigned int) R_386_GNU_VTINHERIT
- - R_386_vt_offset];
+ return &elf_howto_table[R_386_GNU_VTINHERIT - R_386_vt_offset];
case BFD_RELOC_VTABLE_ENTRY:
TRACE ("BFD_RELOC_VTABLE_ENTRY");
- return &elf_howto_table[(unsigned int) R_386_GNU_VTENTRY
- - R_386_vt_offset];
+ return &elf_howto_table[R_386_GNU_VTENTRY - R_386_vt_offset];
default:
break;
}
static void
-elf_i386_info_to_howto (abfd, cache_ptr, dst)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *cache_ptr ATTRIBUTE_UNUSED;
- Elf32_Internal_Rela *dst ATTRIBUTE_UNUSED;
-{
- abort ();
-}
-
-static void
-elf_i386_info_to_howto_rel (abfd, cache_ptr, dst)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *cache_ptr;
- Elf32_Internal_Rel *dst;
+elf_i386_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *cache_ptr,
+ Elf_Internal_Rela *dst)
{
unsigned int r_type = ELF32_R_TYPE (dst->r_info);
unsigned int indx;
{
(*_bfd_error_handler) (_("%s: invalid relocation type %d"),
bfd_archive_filename (abfd), (int) r_type);
- indx = (unsigned int) R_386_NONE;
+ indx = R_386_NONE;
}
cache_ptr->howto = &elf_howto_table[indx];
}
If so, we should move the .X recognition into
_bfd_elf_is_local_label_name. */
-static boolean
-elf_i386_is_local_label_name (abfd, name)
- bfd *abfd;
- const char *name;
+static bfd_boolean
+elf_i386_is_local_label_name (bfd *abfd, const char *name)
{
if (name[0] == '.' && name[1] == 'X')
- return true;
+ return TRUE;
return _bfd_elf_is_local_label_name (abfd, name);
}
\f
/* Support for core dump NOTE sections. */
-static boolean
-elf_i386_grok_prstatus (abfd, note)
- bfd *abfd;
- Elf_Internal_Note *note;
+
+static bfd_boolean
+elf_i386_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
{
int offset;
size_t raw_size;
- switch (note->descsz)
+ if (note->namesz == 8 && strcmp (note->namedata, "FreeBSD") == 0)
{
- default:
- return false;
+ int pr_version = bfd_get_32 (abfd, note->descdata);
- case 144: /* Linux/i386 */
- /* pr_cursig */
- elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+ if (pr_version != 1)
+ return FALSE;
- /* pr_pid */
- elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
+ /* pr_cursig */
+ elf_tdata (abfd)->core_signal = bfd_get_32 (abfd, note->descdata + 20);
- /* pr_reg */
- offset = 72;
- raw_size = 68;
+ /* pr_pid */
+ elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
- break;
+ /* pr_reg */
+ offset = 28;
+ raw_size = bfd_get_32 (abfd, note->descdata + 8);
+ }
+ else
+ {
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 144: /* Linux/i386 */
+ /* pr_cursig */
+ 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 + 24);
+
+ /* pr_reg */
+ offset = 72;
+ raw_size = 68;
+
+ break;
+ }
}
/* Make a ".reg/999" section. */
raw_size, note->descpos + offset);
}
-static boolean
-elf_i386_grok_psinfo (abfd, note)
- bfd *abfd;
- Elf_Internal_Note *note;
+static bfd_boolean
+elf_i386_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
{
- switch (note->descsz)
+ if (note->namesz == 8 && strcmp (note->namedata, "FreeBSD") == 0)
{
- default:
- return false;
-
- case 124: /* Linux/i386 elf_prpsinfo */
- elf_tdata (abfd)->core_program
- = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
- elf_tdata (abfd)->core_command
- = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ int pr_version = bfd_get_32 (abfd, note->descdata);
+
+ if (pr_version != 1)
+ return FALSE;
+
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 8, 17);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 25, 81);
+ }
+ else
+ {
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 124: /* Linux/i386 elf_prpsinfo. */
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ }
}
/* Note that for some reason, a spurious space is tacked
onto the end of the args in some (at least one anyway)
implementations, so strip it off if it exists. */
-
{
char *command = elf_tdata (abfd)->core_command;
int n = strlen (command);
command[n - 1] = '\0';
}
- return true;
+ return TRUE;
}
\f
/* Functions for the i386 ELF linker.
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
+/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
+ copying dynamic variables from a shared lib into an app's dynbss
+ section, and instead use a dynamic relocation to point into the
+ shared lib. */
+#define ELIMINATE_COPY_RELOCS 1
+
/* The size in bytes of an entry in the procedure linkage table. */
#define PLT_ENTRY_SIZE 16
/* Track dynamic relocs copied for this symbol. */
struct elf_i386_dyn_relocs *dyn_relocs;
- enum {
- GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE
- } tls_type;
+#define GOT_UNKNOWN 0
+#define GOT_NORMAL 1
+#define GOT_TLS_GD 2
+#define GOT_TLS_IE 4
+#define GOT_TLS_IE_POS 5
+#define GOT_TLS_IE_NEG 6
+#define GOT_TLS_IE_BOTH 7
+ unsigned char tls_type;
};
#define elf_i386_hash_entry(ent) ((struct elf_i386_link_hash_entry *)(ent))
#define elf_i386_local_got_tls_type(abfd) \
(elf_i386_tdata (abfd)->local_got_tls_type)
-static boolean
-elf_i386_mkobject (abfd)
- bfd *abfd;
+static bfd_boolean
+elf_i386_mkobject (bfd *abfd)
{
bfd_size_type amt = sizeof (struct elf_i386_obj_tdata);
abfd->tdata.any = bfd_zalloc (abfd, amt);
if (abfd->tdata.any == NULL)
- return false;
- return true;
-}
-
-static boolean
-elf_i386_object_p (abfd)
- bfd *abfd;
-{
- /* Allocate our special target data. */
- struct elf_i386_obj_tdata *new_tdata;
- bfd_size_type amt = sizeof (struct elf_i386_obj_tdata);
- new_tdata = bfd_zalloc (abfd, amt);
- if (new_tdata == NULL)
- return false;
- new_tdata->root = *abfd->tdata.elf_obj_data;
- abfd->tdata.any = new_tdata;
- return true;
+ return FALSE;
+ return TRUE;
}
/* i386 ELF linker hash table. */
/* Create an entry in an i386 ELF linker hash table. */
static struct bfd_hash_entry *
-link_hash_newfunc (entry, table, string)
- struct bfd_hash_entry *entry;
- struct bfd_hash_table *table;
- const char *string;
+link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
{
/* Allocate the structure if it has not already been allocated by a
subclass. */
/* Create an i386 ELF linker hash table. */
static struct bfd_link_hash_table *
-elf_i386_link_hash_table_create (abfd)
- bfd *abfd;
+elf_i386_link_hash_table_create (bfd *abfd)
{
struct elf_i386_link_hash_table *ret;
bfd_size_type amt = sizeof (struct elf_i386_link_hash_table);
- ret = (struct elf_i386_link_hash_table *) bfd_malloc (amt);
+ ret = bfd_malloc (amt);
if (ret == NULL)
return NULL;
ret->srelplt = NULL;
ret->sdynbss = NULL;
ret->srelbss = NULL;
+ ret->tls_ldm_got.refcount = 0;
ret->sym_sec.abfd = NULL;
return &ret->elf.root;
/* Create .got, .gotplt, and .rel.got sections in DYNOBJ, and set up
shortcuts to them in our hash table. */
-static boolean
-create_got_section (dynobj, info)
- bfd *dynobj;
- struct bfd_link_info *info;
+static bfd_boolean
+create_got_section (bfd *dynobj, struct bfd_link_info *info)
{
struct elf_i386_link_hash_table *htab;
if (! _bfd_elf_create_got_section (dynobj, info))
- return false;
+ return FALSE;
htab = elf_i386_hash_table (info);
htab->sgot = bfd_get_section_by_name (dynobj, ".got");
| SEC_IN_MEMORY | SEC_LINKER_CREATED
| SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
- return false;
- return true;
+ return FALSE;
+ return TRUE;
}
/* Create .plt, .rel.plt, .got, .got.plt, .rel.got, .dynbss, and
.rel.bss sections in DYNOBJ, and set up shortcuts to them in our
hash table. */
-static boolean
-elf_i386_create_dynamic_sections (dynobj, info)
- bfd *dynobj;
- struct bfd_link_info *info;
+static bfd_boolean
+elf_i386_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
{
struct elf_i386_link_hash_table *htab;
htab = elf_i386_hash_table (info);
if (!htab->sgot && !create_got_section (dynobj, info))
- return false;
+ return FALSE;
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
- return false;
+ return FALSE;
htab->splt = bfd_get_section_by_name (dynobj, ".plt");
htab->srelplt = bfd_get_section_by_name (dynobj, ".rel.plt");
|| (!info->shared && !htab->srelbss))
abort ();
- return true;
+ return TRUE;
}
/* Copy the extra info we tack onto an elf_link_hash_entry. */
static void
-elf_i386_copy_indirect_symbol (dir, ind)
- struct elf_link_hash_entry *dir, *ind;
+elf_i386_copy_indirect_symbol (const struct elf_backend_data *bed,
+ struct elf_link_hash_entry *dir,
+ struct elf_link_hash_entry *ind)
{
struct elf_i386_link_hash_entry *edir, *eind;
eind->dyn_relocs = NULL;
}
- _bfd_elf_link_hash_copy_indirect (dir, ind);
+ if (ind->root.type == bfd_link_hash_indirect
+ && dir->got.refcount <= 0)
+ {
+ edir->tls_type = eind->tls_type;
+ eind->tls_type = GOT_UNKNOWN;
+ }
+
+ if (ELIMINATE_COPY_RELOCS
+ && ind->root.type != bfd_link_hash_indirect
+ && (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
+ /* If called to transfer flags for a weakdef during processing
+ of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
+ We clear it ourselves for ELIMINATE_COPY_RELOCS. */
+ dir->elf_link_hash_flags |=
+ (ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
+ | ELF_LINK_HASH_REF_REGULAR
+ | ELF_LINK_HASH_REF_REGULAR_NONWEAK
+ | ELF_LINK_HASH_NEEDS_PLT
+ | ELF_LINK_POINTER_EQUALITY_NEEDED));
+ else
+ _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
}
static int
-elf_i386_tls_transition (info, r_type, is_local)
- struct bfd_link_info *info;
- int r_type;
- int is_local;
+elf_i386_tls_transition (struct bfd_link_info *info, int r_type, int is_local)
{
if (info->shared)
return r_type;
if (is_local)
return R_386_TLS_LE_32;
return R_386_TLS_IE_32;
+ case R_386_TLS_IE:
+ case R_386_TLS_GOTIE:
+ if (is_local)
+ return R_386_TLS_LE_32;
+ return r_type;
case R_386_TLS_LDM:
return R_386_TLS_LE_32;
}
calculate needed space in the global offset table, procedure linkage
table, and dynamic reloc sections. */
-static boolean
-elf_i386_check_relocs (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
+static bfd_boolean
+elf_i386_check_relocs (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela *relocs)
{
struct elf_i386_link_hash_table *htab;
Elf_Internal_Shdr *symtab_hdr;
const Elf_Internal_Rela *rel_end;
asection *sreloc;
- if (info->relocateable)
- return true;
+ if (info->relocatable)
+ return TRUE;
htab = elf_i386_hash_table (info);
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
(*_bfd_error_handler) (_("%s: bad symbol index: %d"),
bfd_archive_filename (abfd),
r_symndx);
- return false;
+ return FALSE;
}
if (r_symndx < symtab_hdr->sh_info)
switch (r_type)
{
+ case R_386_TLS_LDM:
+ htab->tls_ldm_got.refcount += 1;
+ goto create_got;
+
+ case R_386_PLT32:
+ /* This symbol requires a procedure linkage table entry. We
+ actually build the entry in adjust_dynamic_symbol,
+ because this might be a case of linking PIC code which is
+ never referenced by a dynamic object, in which case we
+ don't need to generate a procedure linkage table entry
+ after all. */
+
+ /* If this is a local symbol, we resolve it directly without
+ creating a procedure linkage table entry. */
+ if (h == NULL)
+ continue;
+
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ h->plt.refcount += 1;
+ break;
+
case R_386_TLS_IE_32:
+ case R_386_TLS_IE:
+ case R_386_TLS_GOTIE:
if (info->shared)
info->flags |= DF_STATIC_TLS;
- /* FALLTHROUGH */
+ /* Fall through */
+
case R_386_GOT32:
case R_386_TLS_GD:
/* This symbol requires a global offset table entry. */
default:
case R_386_GOT32: tls_type = GOT_NORMAL; break;
case R_386_TLS_GD: tls_type = GOT_TLS_GD; break;
- case R_386_TLS_IE_32: tls_type = GOT_TLS_IE; break;
+ case R_386_TLS_IE_32:
+ if (ELF32_R_TYPE (rel->r_info) == r_type)
+ tls_type = GOT_TLS_IE_NEG;
+ else
+ /* If this is a GD->IE transition, we may use either of
+ R_386_TLS_TPOFF and R_386_TLS_TPOFF32. */
+ tls_type = GOT_TLS_IE;
+ break;
+ case R_386_TLS_IE:
+ case R_386_TLS_GOTIE:
+ tls_type = GOT_TLS_IE_POS; break;
}
if (h != NULL)
size = symtab_hdr->sh_info;
size *= (sizeof (bfd_signed_vma) + sizeof(char));
- local_got_refcounts = ((bfd_signed_vma *)
- bfd_zalloc (abfd, size));
+ local_got_refcounts = bfd_zalloc (abfd, size);
if (local_got_refcounts == NULL)
- return false;
+ return FALSE;
elf_local_got_refcounts (abfd) = local_got_refcounts;
elf_i386_local_got_tls_type (abfd)
= (char *) (local_got_refcounts + symtab_hdr->sh_info);
old_tls_type = elf_i386_local_got_tls_type (abfd) [r_symndx];
}
+ if ((old_tls_type & GOT_TLS_IE) && (tls_type & GOT_TLS_IE))
+ tls_type |= old_tls_type;
/* If a TLS symbol is accessed using IE at least once,
there is no point to use dynamic model for it. */
- if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
- && (old_tls_type != GOT_TLS_GD || tls_type != GOT_TLS_IE))
+ else if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
+ && (old_tls_type != GOT_TLS_GD
+ || (tls_type & GOT_TLS_IE) == 0))
{
- if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
- tls_type = GOT_TLS_IE;
+ if ((old_tls_type & GOT_TLS_IE) && tls_type == GOT_TLS_GD)
+ tls_type = old_tls_type;
else
{
(*_bfd_error_handler)
- (_("%s: `%s' accessed both as normal and thread local symbol"),
- bfd_archive_filename (abfd), h->root.root.string);
- return false;
+ (_("%s: `%s' accessed both as normal and "
+ "thread local symbol"),
+ bfd_archive_filename (abfd),
+ h ? h->root.root.string : "<local>");
+ return FALSE;
}
}
if (htab->elf.dynobj == NULL)
htab->elf.dynobj = abfd;
if (!create_got_section (htab->elf.dynobj, info))
- return false;
+ return FALSE;
}
- break;
-
- case R_386_TLS_LDM:
- htab->tls_ldm_got.refcount += 1;
- goto create_got;
-
- case R_386_PLT32:
- /* This symbol requires a procedure linkage table entry. We
- actually build the entry in adjust_dynamic_symbol,
- because this might be a case of linking PIC code which is
- never referenced by a dynamic object, in which case we
- don't need to generate a procedure linkage table entry
- after all. */
-
- /* If this is a local symbol, we resolve it directly without
- creating a procedure linkage table entry. */
- if (h == NULL)
- continue;
+ if (r_type != R_386_TLS_IE)
+ break;
+ /* Fall through */
- h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
- h->plt.refcount += 1;
- break;
+ case R_386_TLS_LE_32:
+ case R_386_TLS_LE:
+ if (!info->shared)
+ break;
+ info->flags |= DF_STATIC_TLS;
+ /* Fall through */
case R_386_32:
case R_386_PC32:
/* We may need a .plt entry if the function this reloc
refers to is in a shared lib. */
h->plt.refcount += 1;
+ if (r_type != R_386_PC32)
+ h->elf_link_hash_flags |= ELF_LINK_POINTER_EQUALITY_NEEDED;
}
/* If we are creating a shared library, and this is a reloc
|| h->root.type == bfd_link_hash_defweak
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))))
- || (!info->shared
+ || (ELIMINATE_COPY_RELOCS
+ && !info->shared
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
if (name == NULL)
- return false;
+ return FALSE;
if (strncmp (name, ".rel", 4) != 0
|| strcmp (bfd_get_section_name (abfd, sec),
if (sreloc == NULL
|| ! bfd_set_section_flags (dynobj, sreloc, flags)
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
- return false;
+ return FALSE;
}
elf_section_data (sec)->sreloc = sreloc;
}
s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
sec, r_symndx);
if (s == NULL)
- return false;
+ return FALSE;
head = ((struct elf_i386_dyn_relocs **)
&elf_section_data (s)->local_dynrel);
if (p == NULL || p->sec != sec)
{
bfd_size_type amt = sizeof *p;
- p = ((struct elf_i386_dyn_relocs *)
- bfd_alloc (htab->elf.dynobj, amt));
+ p = bfd_alloc (htab->elf.dynobj, amt);
if (p == NULL)
- return false;
+ return FALSE;
p->next = *head;
*head = p;
p->sec = sec;
Reconstruct it for later use during GC. */
case R_386_GNU_VTINHERIT:
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return false;
+ return FALSE;
break;
/* This relocation describes which C++ vtable entries are actually
used. Record for later use during GC. */
case R_386_GNU_VTENTRY:
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
- return false;
- break;
-
- case R_386_TLS_LE_32:
- case R_386_TLS_LE:
- if (info->shared)
- {
- (*_bfd_error_handler) (_("%s: TLS local exec code cannot be linked into shared objects"),
- bfd_archive_filename (abfd));
- return false;
- }
+ return FALSE;
break;
default:
}
}
- return true;
+ return TRUE;
}
/* Return the section that should be marked against GC for a given
relocation. */
static asection *
-elf_i386_gc_mark_hook (sec, info, rel, h, sym)
- asection *sec;
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- Elf_Internal_Rela *rel;
- struct elf_link_hash_entry *h;
- Elf_Internal_Sym *sym;
+elf_i386_gc_mark_hook (asection *sec,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ Elf_Internal_Rela *rel,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
{
if (h != NULL)
{
/* Update the got entry reference counts for the section being removed. */
-static boolean
-elf_i386_gc_sweep_hook (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
+static bfd_boolean
+elf_i386_gc_sweep_hook (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela *relocs)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_signed_vma *local_got_refcounts;
const Elf_Internal_Rela *rel, *relend;
- unsigned long r_symndx;
- struct elf_link_hash_entry *h;
elf_section_data (sec)->local_dynrel = NULL;
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; rel++)
- switch (elf_i386_tls_transition (info, ELF32_R_TYPE (rel->r_info),
- ELF32_R_SYM (rel->r_info)
- >= symtab_hdr->sh_info))
- {
- case R_386_TLS_LDM:
- if (elf_i386_hash_table (info)->tls_ldm_got.refcount > 0)
- elf_i386_hash_table (info)->tls_ldm_got.refcount -= 1;
- break;
-
- case R_386_TLS_GD:
- case R_386_TLS_IE_32:
- case R_386_GOT32:
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- if (h->got.refcount > 0)
- h->got.refcount -= 1;
- }
- else if (local_got_refcounts != NULL)
- {
- if (local_got_refcounts[r_symndx] > 0)
- local_got_refcounts[r_symndx] -= 1;
- }
- break;
+ {
+ unsigned long r_symndx;
+ unsigned int r_type;
+ struct elf_link_hash_entry *h = NULL;
- case R_386_32:
- case R_386_PC32:
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- struct elf_i386_link_hash_entry *eh;
- struct elf_i386_dyn_relocs **pp;
- struct elf_i386_dyn_relocs *p;
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ struct elf_i386_link_hash_entry *eh;
+ struct elf_i386_dyn_relocs **pp;
+ struct elf_i386_dyn_relocs *p;
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ eh = (struct elf_i386_link_hash_entry *) h;
- if (!info->shared && h->plt.refcount > 0)
- h->plt.refcount -= 1;
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+ if (p->sec == sec)
+ {
+ /* Everything must go for SEC. */
+ *pp = p->next;
+ break;
+ }
+ }
- eh = (struct elf_i386_link_hash_entry *) h;
+ r_type = ELF32_R_TYPE (rel->r_info);
+ r_type = elf_i386_tls_transition (info, r_type, h != NULL);
+ switch (r_type)
+ {
+ case R_386_TLS_LDM:
+ if (elf_i386_hash_table (info)->tls_ldm_got.refcount > 0)
+ elf_i386_hash_table (info)->tls_ldm_got.refcount -= 1;
+ break;
- for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
- if (p->sec == sec)
- {
- if (ELF32_R_TYPE (rel->r_info) == R_386_PC32)
- p->pc_count -= 1;
- p->count -= 1;
- if (p->count == 0)
- *pp = p->next;
- break;
- }
- }
- break;
+ case R_386_TLS_GD:
+ case R_386_TLS_IE_32:
+ case R_386_TLS_IE:
+ case R_386_TLS_GOTIE:
+ case R_386_GOT32:
+ if (h != NULL)
+ {
+ if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ }
+ else if (local_got_refcounts != NULL)
+ {
+ if (local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx] -= 1;
+ }
+ break;
- case R_386_PLT32:
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- if (h->plt.refcount > 0)
- h->plt.refcount -= 1;
- }
- break;
+ case R_386_32:
+ case R_386_PC32:
+ if (info->shared)
+ break;
+ /* Fall through */
+
+ case R_386_PLT32:
+ if (h != NULL)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ break;
- default:
- break;
- }
+ default:
+ break;
+ }
+ }
- return true;
+ return TRUE;
}
/* Adjust a symbol defined by a dynamic object and referenced by a
change the definition to something the rest of the link can
understand. */
-static boolean
-elf_i386_adjust_dynamic_symbol (info, h)
- struct bfd_link_info *info;
- struct elf_link_hash_entry *h;
+static bfd_boolean
+elf_i386_adjust_dynamic_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h)
{
struct elf_i386_link_hash_table *htab;
- struct elf_i386_link_hash_entry * eh;
- struct elf_i386_dyn_relocs *p;
asection *s;
unsigned int power_of_two;
|| (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
{
if (h->plt.refcount <= 0
- || (! info->shared
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
- && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
- && h->root.type != bfd_link_hash_undefweak
- && h->root.type != bfd_link_hash_undefined))
+ || SYMBOL_CALLS_LOCAL (info, h)
+ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak))
{
/* This case can occur if we saw a PLT32 reloc in an input
file, but the symbol was never referred to by a dynamic
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
}
- return true;
+ return TRUE;
}
else
/* It's possible that we incorrectly decided a .plt reloc was
|| h->weakdef->root.type == bfd_link_hash_defweak);
h->root.u.def.section = h->weakdef->root.u.def.section;
h->root.u.def.value = h->weakdef->root.u.def.value;
- return true;
+ if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
+ h->elf_link_hash_flags
+ = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
+ | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
+ return TRUE;
}
/* This is a reference to a symbol defined by a dynamic object which
For such cases we need not do anything here; the relocations will
be handled correctly by relocate_section. */
if (info->shared)
- return true;
+ return TRUE;
/* If there are no references to this symbol that do not use the
GOT, we don't need to generate a copy reloc. */
if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
- return true;
+ return TRUE;
/* If -z nocopyreloc was given, we won't generate them either. */
if (info->nocopyreloc)
{
h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
- return true;
+ return TRUE;
}
- eh = (struct elf_i386_link_hash_entry *) h;
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ if (ELIMINATE_COPY_RELOCS)
{
- s = p->sec->output_section;
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- break;
- }
+ struct elf_i386_link_hash_entry * eh;
+ struct elf_i386_dyn_relocs *p;
- /* If we didn't find any dynamic relocs in read-only sections, then
- we'll be keeping the dynamic relocs and avoiding the copy reloc. */
- if (p == NULL)
- {
- h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
- return true;
+ eh = (struct elf_i386_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ s = p->sec->output_section;
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ break;
+ }
+
+ /* If we didn't find any dynamic relocs in read-only sections, then
+ we'll be keeping the dynamic relocs and avoiding the copy reloc. */
+ if (p == NULL)
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
+ return TRUE;
+ }
}
/* We must allocate the symbol in our .dynbss section, which will
if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
{
if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
- return false;
+ return FALSE;
}
/* Define the symbol as being at this point in the section. */
/* Increment the section size to make room for the symbol. */
s->_raw_size += h->size;
- return true;
+ return TRUE;
}
/* This is the condition under which elf_i386_finish_dynamic_symbol
will be called from elflink.h. If elflink.h doesn't call our
finish_dynamic_symbol routine, we'll need to do something about
initializing any .plt and .got entries in elf_i386_relocate_section. */
-#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
+#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
((DYN) \
- && ((INFO)->shared \
+ && ((SHARED) \
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
&& ((H)->dynindx != -1 \
|| ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
/* Allocate space in .plt, .got and associated reloc sections for
dynamic relocs. */
-static boolean
-allocate_dynrelocs (h, inf)
- struct elf_link_hash_entry *h;
- PTR inf;
+static bfd_boolean
+allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
{
struct bfd_link_info *info;
struct elf_i386_link_hash_table *htab;
struct elf_i386_dyn_relocs *p;
if (h->root.type == bfd_link_hash_indirect)
- return true;
+ return TRUE;
if (h->root.type == bfd_link_hash_warning)
/* When warning symbols are created, they **replace** the "real"
&& (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
+ return FALSE;
}
- if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
+ if (info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
{
asection *s = htab->splt;
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
}
- /* If R_386_TLS_IE_32 symbol is now local to the binary,
+ /* If R_386_TLS_{IE_32,IE,GOTIE} symbol is now local to the binary,
make it a R_386_TLS_LE_32 requiring no TLS entry. */
if (h->got.refcount > 0
&& !info->shared
&& h->dynindx == -1
- && elf_i386_hash_entry(h)->tls_type == GOT_TLS_IE)
+ && (elf_i386_hash_entry(h)->tls_type & GOT_TLS_IE))
h->got.offset = (bfd_vma) -1;
else if (h->got.refcount > 0)
{
asection *s;
- boolean dyn;
+ bfd_boolean dyn;
int tls_type = elf_i386_hash_entry(h)->tls_type;
/* Make sure this symbol is output as a dynamic symbol.
&& (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
+ return FALSE;
}
s = htab->sgot;
h->got.offset = s->_raw_size;
s->_raw_size += 4;
/* R_386_TLS_GD needs 2 consecutive GOT slots. */
- if (tls_type == GOT_TLS_GD)
+ if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE_BOTH)
s->_raw_size += 4;
dyn = htab->elf.dynamic_sections_created;
/* R_386_TLS_IE_32 needs one dynamic relocation,
- R_386_TLS_GD needs one if local symbol and two if global. */
- if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
- || tls_type == GOT_TLS_IE)
+ R_386_TLS_IE resp. R_386_TLS_GOTIE needs one dynamic relocation,
+ (but if both R_386_TLS_IE_32 and R_386_TLS_IE is present, we
+ need two), R_386_TLS_GD needs one if local symbol and two if
+ global. */
+ if (tls_type == GOT_TLS_IE_BOTH)
+ htab->srelgot->_raw_size += 2 * sizeof (Elf32_External_Rel);
+ else if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
+ || (tls_type & GOT_TLS_IE))
htab->srelgot->_raw_size += sizeof (Elf32_External_Rel);
else if (tls_type == GOT_TLS_GD)
htab->srelgot->_raw_size += 2 * sizeof (Elf32_External_Rel);
- else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h))
+ else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
+ && (info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
htab->srelgot->_raw_size += sizeof (Elf32_External_Rel);
}
else
eh = (struct elf_i386_link_hash_entry *) h;
if (eh->dyn_relocs == NULL)
- return true;
+ return TRUE;
/* In the shared -Bsymbolic case, discard space allocated for
dynamic pc-relative relocs against symbols which turn out to be
if (info->shared)
{
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
- && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
- || info->symbolic))
+ /* The only reloc that uses pc_count is R_386_PC32, which will
+ appear on a call or on something like ".long foo - .". We
+ want calls to protected symbols to resolve directly to the
+ function rather than going via the plt. If people want
+ function pointer comparisons to work as expected then they
+ should avoid writing assembly like ".long foo - .". */
+ if (SYMBOL_CALLS_LOCAL (info, h))
{
struct elf_i386_dyn_relocs **pp;
pp = &p->next;
}
}
+
+ /* Also discard relocs on undefined weak syms with non-default
+ visibility. */
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak)
+ eh->dyn_relocs = NULL;
}
- else
+ else if (ELIMINATE_COPY_RELOCS)
{
/* For the non-shared case, discard space for relocs against
symbols which turn out to need copy relocs or are not
&& (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
+ return FALSE;
}
/* If that succeeded, we know we'll be keeping all the
sreloc->_raw_size += p->count * sizeof (Elf32_External_Rel);
}
- return true;
+ return TRUE;
}
/* Find any dynamic relocs that apply to read-only sections. */
-static boolean
-readonly_dynrelocs (h, inf)
- struct elf_link_hash_entry *h;
- PTR inf;
+static bfd_boolean
+readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
{
struct elf_i386_link_hash_entry *eh;
struct elf_i386_dyn_relocs *p;
info->flags |= DF_TEXTREL;
/* Not an error, just cut short the traversal. */
- return false;
+ return FALSE;
}
}
- return true;
+ return TRUE;
}
/* Set the sizes of the dynamic sections. */
-static boolean
-elf_i386_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info;
+static bfd_boolean
+elf_i386_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
{
struct elf_i386_link_hash_table *htab;
bfd *dynobj;
asection *s;
- boolean relocs;
+ bfd_boolean relocs;
bfd *ibfd;
htab = elf_i386_hash_table (info);
if (htab->elf.dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
- if (! info->shared)
+ if (info->executable)
{
s = bfd_get_section_by_name (dynobj, ".interp");
if (s == NULL)
{
*local_got = s->_raw_size;
s->_raw_size += 4;
- if (*local_tls_type == GOT_TLS_GD)
+ if (*local_tls_type == GOT_TLS_GD
+ || *local_tls_type == GOT_TLS_IE_BOTH)
s->_raw_size += 4;
if (info->shared
|| *local_tls_type == GOT_TLS_GD
- || *local_tls_type == GOT_TLS_IE)
- srel->_raw_size += sizeof (Elf32_External_Rel);
+ || (*local_tls_type & GOT_TLS_IE))
+ {
+ if (*local_tls_type == GOT_TLS_IE_BOTH)
+ srel->_raw_size += 2 * sizeof (Elf32_External_Rel);
+ else
+ srel->_raw_size += sizeof (Elf32_External_Rel);
+ }
}
else
*local_got = (bfd_vma) -1;
/* We now have determined the sizes of the various dynamic sections.
Allocate memory for them. */
- relocs = false;
+ relocs = FALSE;
for (s = dynobj->sections; s != NULL; s = s->next)
{
if ((s->flags & SEC_LINKER_CREATED) == 0)
else if (strncmp (bfd_get_section_name (dynobj, s), ".rel", 4) == 0)
{
if (s->_raw_size != 0 && s != htab->srelplt)
- relocs = true;
+ relocs = TRUE;
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */
section's contents are written out. This should not happen,
but this way if it does, we get a R_386_NONE reloc instead
of garbage. */
- s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
+ s->contents = bfd_zalloc (dynobj, s->_raw_size);
if (s->contents == NULL)
- return false;
+ return FALSE;
}
if (htab->elf.dynamic_sections_created)
the .dynamic section. The DT_DEBUG entry is filled in by the
dynamic linker and used by the debugger. */
#define add_dynamic_entry(TAG, VAL) \
- bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
+ bfd_elf32_add_dynamic_entry (info, (TAG), (VAL))
- if (! info->shared)
+ if (info->executable)
{
if (!add_dynamic_entry (DT_DEBUG, 0))
- return false;
+ return FALSE;
}
if (htab->splt->_raw_size != 0)
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|| !add_dynamic_entry (DT_PLTREL, DT_REL)
|| !add_dynamic_entry (DT_JMPREL, 0))
- return false;
+ return FALSE;
}
if (relocs)
if (!add_dynamic_entry (DT_REL, 0)
|| !add_dynamic_entry (DT_RELSZ, 0)
|| !add_dynamic_entry (DT_RELENT, sizeof (Elf32_External_Rel)))
- return false;
+ return FALSE;
/* If any dynamic relocs apply to a read-only section,
then we need a DT_TEXTREL entry. */
if ((info->flags & DF_TEXTREL) != 0)
{
if (!add_dynamic_entry (DT_TEXTREL, 0))
- return false;
+ return FALSE;
}
}
}
#undef add_dynamic_entry
- return true;
+ return TRUE;
}
/* Set the correct type for an x86 ELF section. We do this by the
section name, which is a hack, but ought to work. */
-static boolean
-elf_i386_fake_sections (abfd, hdr, sec)
- bfd *abfd ATTRIBUTE_UNUSED;
- Elf32_Internal_Shdr *hdr;
- asection *sec;
+static bfd_boolean
+elf_i386_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
+ Elf_Internal_Shdr *hdr,
+ asection *sec)
{
register const char *name;
if (strcmp (name, ".reloc") == 0)
hdr->sh_type = SHT_PROGBITS;
- return true;
+ return TRUE;
}
/* Return the base VMA address which should be subtracted from real addresses
This is PT_TLS segment p_vaddr. */
static bfd_vma
-dtpoff_base (info)
- struct bfd_link_info *info;
+dtpoff_base (struct bfd_link_info *info)
{
- BFD_ASSERT (elf_hash_table (info)->tls_segment != NULL);
- return elf_hash_table (info)->tls_segment->start;
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_sec == NULL)
+ return 0;
+ return elf_hash_table (info)->tls_sec->vma;
}
/* Return the relocation value for @tpoff relocation
if STT_TLS virtual address is ADDRESS. */
static bfd_vma
-tpoff (info, address)
- struct bfd_link_info *info;
- bfd_vma address;
+tpoff (struct bfd_link_info *info, bfd_vma address)
{
- struct elf_link_tls_segment *tls_segment
- = elf_hash_table (info)->tls_segment;
+ struct elf_link_hash_table *htab = elf_hash_table (info);
- BFD_ASSERT (tls_segment != NULL);
- return (align_power (tls_segment->size, tls_segment->align)
- + tls_segment->start - address);
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (htab->tls_sec == NULL)
+ return 0;
+ return htab->tls_size + htab->tls_sec->vma - address;
}
/* Relocate an i386 ELF section. */
-static boolean
-elf_i386_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd *output_bfd;
- struct bfd_link_info *info;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- Elf_Internal_Rela *relocs;
- Elf_Internal_Sym *local_syms;
- asection **local_sections;
+static bfd_boolean
+elf_i386_relocate_section (bfd *output_bfd,
+ struct bfd_link_info *info,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ Elf_Internal_Rela *relocs,
+ Elf_Internal_Sym *local_syms,
+ asection **local_sections)
{
struct elf_i386_link_hash_table *htab;
Elf_Internal_Shdr *symtab_hdr;
asection *sec;
bfd_vma off;
bfd_vma relocation;
- boolean unresolved_reloc;
+ bfd_boolean unresolved_reloc;
bfd_reloc_status_type r;
unsigned int indx;
int tls_type;
r_type = ELF32_R_TYPE (rel->r_info);
- if (r_type == (int) R_386_GNU_VTINHERIT
- || r_type == (int) R_386_GNU_VTENTRY)
+ if (r_type == R_386_GNU_VTINHERIT
+ || r_type == R_386_GNU_VTENTRY)
continue;
- if ((indx = (unsigned) r_type) >= R_386_standard
+ if ((indx = r_type) >= R_386_standard
&& ((indx = r_type - R_386_ext_offset) - R_386_standard
>= R_386_ext - R_386_standard)
&& ((indx = r_type - R_386_tls_offset) - R_386_ext
>= R_386_tls - R_386_ext))
{
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
howto = elf_howto_table + indx;
r_symndx = ELF32_R_SYM (rel->r_info);
- if (info->relocateable)
+ if (info->relocatable)
{
bfd_vma val;
bfd_byte *where;
h = NULL;
sym = NULL;
sec = NULL;
- unresolved_reloc = false;
+ unresolved_reloc = FALSE;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
}
else
{
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ bfd_boolean warned;
- relocation = 0;
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sec = h->root.u.def.section;
- if (sec->output_section == NULL)
- /* Set a flag that will be cleared later if we find a
- relocation value for this symbol. output_section
- is typically NULL for symbols satisfied by a shared
- library. */
- unresolved_reloc = true;
- else
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- ;
- else if (info->shared
- && (!info->symbolic || info->allow_shlib_undefined)
- && !info->no_undefined
- && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
- ;
- else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset,
- (!info->shared || info->no_undefined
- || ELF_ST_VISIBILITY (h->other)))))
- return false;
- }
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned);
}
switch (r_type)
if (h != NULL)
{
- boolean dyn;
+ bfd_boolean dyn;
off = h->got.offset;
dyn = htab->elf.dynamic_sections_created;
- if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|| (info->shared
- && (info->symbolic
- || h->dynindx == -1
- || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ && SYMBOL_REFERENCES_LOCAL (info, h))
+ || (ELF_ST_VISIBILITY (h->other)
+ && h->root.type == bfd_link_hash_undefweak))
{
/* This is actually a static link, or it is a
-Bsymbolic link and the symbol is defined
}
}
else
- unresolved_reloc = false;
+ unresolved_reloc = FALSE;
}
else
{
if (info->shared)
{
- asection *srelgot;
- Elf_Internal_Rel outrel;
- Elf32_External_Rel *loc;
+ asection *s;
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
- srelgot = htab->srelgot;
- if (srelgot == NULL)
+ s = htab->srelgot;
+ if (s == NULL)
abort ();
outrel.r_offset = (htab->sgot->output_section->vma
+ htab->sgot->output_offset
+ off);
outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE);
- loc = (Elf32_External_Rel *) srelgot->contents;
- loc += srelgot->reloc_count++;
+ loc = s->contents;
+ loc += s->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
}
case R_386_GOTPC:
/* Use global offset table as symbol value. */
relocation = htab->sgot->output_section->vma;
- unresolved_reloc = false;
+ unresolved_reloc = FALSE;
break;
case R_386_PLT32:
relocation = (htab->splt->output_section->vma
+ htab->splt->output_offset
+ h->plt.offset);
- unresolved_reloc = false;
+ unresolved_reloc = FALSE;
break;
case R_386_32:
break;
if ((info->shared
+ && (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
&& (r_type != R_386_PC32
- || (h != NULL
- && h->dynindx != -1
- && (! info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))))
- || (!info->shared
+ || !SYMBOL_CALLS_LOCAL (info, h)))
+ || (ELIMINATE_COPY_RELOCS
+ && !info->shared
&& h != NULL
&& h->dynindx != -1
&& (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
|| h->root.type == bfd_link_hash_undefweak
|| h->root.type == bfd_link_hash_undefined)))
{
- Elf_Internal_Rel outrel;
- boolean skip, relocate;
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+ bfd_boolean skip, relocate;
asection *sreloc;
- Elf32_External_Rel *loc;
/* When generating a shared object, these relocations
are copied into the output file to be resolved at run
time. */
- skip = false;
- relocate = false;
+ skip = FALSE;
+ relocate = FALSE;
outrel.r_offset =
_bfd_elf_section_offset (output_bfd, info, input_section,
rel->r_offset);
if (outrel.r_offset == (bfd_vma) -1)
- skip = true;
+ skip = TRUE;
else if (outrel.r_offset == (bfd_vma) -2)
- skip = true, relocate = true;
+ skip = TRUE, relocate = TRUE;
outrel.r_offset += (input_section->output_section->vma
+ input_section->output_offset);
else
{
/* This symbol is local, or marked to become local. */
- relocate = true;
+ relocate = TRUE;
outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE);
}
if (sreloc == NULL)
abort ();
- loc = (Elf32_External_Rel *) sreloc->contents;
- loc += sreloc->reloc_count++;
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
/* If this reloc is against an external symbol, we do
}
break;
+ case R_386_TLS_IE:
+ if (info->shared)
+ {
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+ asection *sreloc;
+
+ outrel.r_offset = rel->r_offset
+ + input_section->output_section->vma
+ + input_section->output_offset;
+ outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE);
+ sreloc = elf_section_data (input_section)->sreloc;
+ if (sreloc == NULL)
+ abort ();
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel);
+ bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
+ }
+ /* Fall through */
+
case R_386_TLS_GD:
case R_386_TLS_IE_32:
+ case R_386_TLS_GOTIE:
r_type = elf_i386_tls_transition (info, r_type, h == NULL);
tls_type = GOT_UNKNOWN;
if (h == NULL && local_got_offsets)
else if (h != NULL)
{
tls_type = elf_i386_hash_entry(h)->tls_type;
- if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
+ if (!info->shared && h->dynindx == -1 && (tls_type & GOT_TLS_IE))
r_type = R_386_TLS_LE_32;
}
- if (r_type == R_386_TLS_GD && tls_type == GOT_TLS_IE)
- r_type = R_386_TLS_IE_32;
+ if (tls_type == GOT_TLS_IE)
+ tls_type = GOT_TLS_IE_NEG;
+ if (r_type == R_386_TLS_GD)
+ {
+ if (tls_type == GOT_TLS_IE_POS)
+ r_type = R_386_TLS_GOTIE;
+ else if (tls_type & GOT_TLS_IE)
+ r_type = R_386_TLS_IE_32;
+ }
if (r_type == R_386_TLS_LE_32)
{
rel++;
continue;
}
- else
+ else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_IE)
{
unsigned int val, type;
/* IE->LE transition:
- Originally it can be either:
+ Originally it can be one of:
+ movl foo, %eax
+ movl foo, %reg
+ addl foo, %reg
+ We change it into:
+ movl $foo, %eax
+ movl $foo, %reg
+ addl $foo, %reg. */
+ BFD_ASSERT (rel->r_offset >= 1);
+ val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1);
+ BFD_ASSERT (rel->r_offset + 4 <= input_section->_raw_size);
+ if (val == 0xa1)
+ {
+ /* movl foo, %eax. */
+ bfd_put_8 (output_bfd, 0xb8,
+ contents + rel->r_offset - 1);
+ }
+ else
+ {
+ BFD_ASSERT (rel->r_offset >= 2);
+ type = bfd_get_8 (input_bfd,
+ contents + rel->r_offset - 2);
+ switch (type)
+ {
+ case 0x8b:
+ /* movl */
+ BFD_ASSERT ((val & 0xc7) == 0x05);
+ bfd_put_8 (output_bfd, 0xc7,
+ contents + rel->r_offset - 2);
+ bfd_put_8 (output_bfd,
+ 0xc0 | ((val >> 3) & 7),
+ contents + rel->r_offset - 1);
+ break;
+ case 0x03:
+ /* addl */
+ BFD_ASSERT ((val & 0xc7) == 0x05);
+ bfd_put_8 (output_bfd, 0x81,
+ contents + rel->r_offset - 2);
+ bfd_put_8 (output_bfd,
+ 0xc0 | ((val >> 3) & 7),
+ contents + rel->r_offset - 1);
+ break;
+ default:
+ BFD_FAIL ();
+ break;
+ }
+ }
+ bfd_put_32 (output_bfd, -tpoff (info, relocation),
+ contents + rel->r_offset);
+ continue;
+ }
+ else
+ {
+ unsigned int val, type;
+
+ /* {IE_32,GOTIE}->LE transition:
+ Originally it can be one of:
subl foo(%reg1), %reg2
- or
movl foo(%reg1), %reg2
+ addl foo(%reg1), %reg2
We change it into:
subl $foo, %reg2
- or
- movl $foo, %reg2 (6 byte form) */
+ movl $foo, %reg2 (6 byte form)
+ addl $foo, %reg2. */
BFD_ASSERT (rel->r_offset >= 2);
type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2);
val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1);
BFD_ASSERT (rel->r_offset + 4 <= input_section->_raw_size);
+ BFD_ASSERT ((val & 0xc0) == 0x80 && (val & 7) != 4);
if (type == 0x8b)
{
/* movl */
- BFD_ASSERT ((val & 0xc0) == 0x80 && (val & 7) != 4);
bfd_put_8 (output_bfd, 0xc7,
contents + rel->r_offset - 2);
bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7),
else if (type == 0x2b)
{
/* subl */
- BFD_ASSERT ((val & 0xc0) == 0x80 && (val & 7) != 4);
bfd_put_8 (output_bfd, 0x81,
contents + rel->r_offset - 2);
bfd_put_8 (output_bfd, 0xe8 | ((val >> 3) & 7),
contents + rel->r_offset - 1);
}
+ else if (type == 0x03)
+ {
+ /* addl */
+ bfd_put_8 (output_bfd, 0x81,
+ contents + rel->r_offset - 2);
+ bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7),
+ contents + rel->r_offset - 1);
+ }
else
BFD_FAIL ();
- bfd_put_32 (output_bfd, tpoff (info, relocation),
- contents + rel->r_offset);
+ if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GOTIE)
+ bfd_put_32 (output_bfd, -tpoff (info, relocation),
+ contents + rel->r_offset);
+ else
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ contents + rel->r_offset);
continue;
}
}
if ((off & 1) != 0)
off &= ~1;
- else
+ else
{
- Elf_Internal_Rel outrel;
- Elf32_External_Rel *loc;
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
int dr_type, indx;
if (htab->srelgot == NULL)
outrel.r_offset = (htab->sgot->output_section->vma
+ htab->sgot->output_offset + off);
- bfd_put_32 (output_bfd, 0,
- htab->sgot->contents + off);
indx = h && h->dynindx != -1 ? h->dynindx : 0;
if (r_type == R_386_TLS_GD)
dr_type = R_386_TLS_DTPMOD32;
+ else if (tls_type == GOT_TLS_IE_POS)
+ dr_type = R_386_TLS_TPOFF;
else
dr_type = R_386_TLS_TPOFF32;
+ if (dr_type == R_386_TLS_TPOFF && indx == 0)
+ bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
+ htab->sgot->contents + off);
+ else if (dr_type == R_386_TLS_TPOFF32 && indx == 0)
+ bfd_put_32 (output_bfd, dtpoff_base (info) - relocation,
+ htab->sgot->contents + off);
+ else
+ bfd_put_32 (output_bfd, 0,
+ htab->sgot->contents + off);
outrel.r_info = ELF32_R_INFO (indx, dr_type);
- loc = (Elf32_External_Rel *) htab->srelgot->contents;
- loc += htab->srelgot->reloc_count++;
+ loc = htab->srelgot->contents;
+ loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
if (r_type == R_386_TLS_GD)
R_386_TLS_DTPOFF32);
outrel.r_offset += 4;
htab->srelgot->reloc_count++;
- loc++;
- bfd_elf32_swap_reloc_out (output_bfd, &outrel,
- loc);
+ loc += sizeof (Elf32_External_Rel);
+ bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
}
}
+ else if (tls_type == GOT_TLS_IE_BOTH)
+ {
+ bfd_put_32 (output_bfd,
+ indx == 0 ? relocation - dtpoff_base (info) : 0,
+ htab->sgot->contents + off + 4);
+ outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF);
+ outrel.r_offset += 4;
+ htab->srelgot->reloc_count++;
+ loc += sizeof (Elf32_External_Rel);
+ bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
+ }
if (h != NULL)
h->got.offset |= 1;
if (r_type == ELF32_R_TYPE (rel->r_info))
{
relocation = htab->sgot->output_offset + off;
- unresolved_reloc = false;
+ if ((r_type == R_386_TLS_IE || r_type == R_386_TLS_GOTIE)
+ && tls_type == GOT_TLS_IE_BOTH)
+ relocation += 4;
+ if (r_type == R_386_TLS_IE)
+ relocation += htab->sgot->output_section->vma;
+ unresolved_reloc = FALSE;
}
else
{
memcpy (contents + roff,
"\x65\xa1\0\0\0\0\x2b\x80\0\0\0", 12);
contents[roff + 7] = 0x80 | (val & 7);
+ /* If foo is used only with foo@gotntpoff(%reg) and
+ foo@indntpoff, but not with foo@gottpoff(%reg), change
+ subl $foo@gottpoff(%reg), %eax
+ into:
+ addl $foo@gotntpoff(%reg), %eax. */
+ if (r_type == R_386_TLS_GOTIE)
+ {
+ contents[roff + 6] = 0x03;
+ if (tls_type == GOT_TLS_IE_BOTH)
+ off += 4;
+ }
bfd_put_32 (output_bfd, htab->sgot->output_offset + off,
contents + roff + 8);
/* Skip R_386_PLT32. */
off &= ~1;
else
{
- Elf_Internal_Rel outrel;
- Elf32_External_Rel *loc;
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
if (htab->srelgot == NULL)
abort ();
bfd_put_32 (output_bfd, 0,
htab->sgot->contents + off + 4);
outrel.r_info = ELF32_R_INFO (0, R_386_TLS_DTPMOD32);
- loc = (Elf32_External_Rel *) htab->srelgot->contents;
- loc += htab->srelgot->reloc_count++;
+ loc = htab->srelgot->contents;
+ loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
htab->tls_ldm_got.offset |= 1;
}
relocation = htab->sgot->output_offset + off;
- unresolved_reloc = false;
+ unresolved_reloc = FALSE;
break;
case R_386_TLS_LDO_32:
- if (info->shared)
+ if (info->shared || (input_section->flags & SEC_CODE) == 0)
relocation -= dtpoff_base (info);
else
/* When converting LDO to LE, we must negate. */
break;
case R_386_TLS_LE_32:
- relocation = tpoff (info, relocation);
- break;
-
case R_386_TLS_LE:
- relocation = -tpoff (info, relocation);
+ if (info->shared)
+ {
+ Elf_Internal_Rela outrel;
+ asection *sreloc;
+ bfd_byte *loc;
+ int indx;
+
+ outrel.r_offset = rel->r_offset
+ + input_section->output_section->vma
+ + input_section->output_offset;
+ if (h != NULL && h->dynindx != -1)
+ indx = h->dynindx;
+ else
+ indx = 0;
+ if (r_type == R_386_TLS_LE_32)
+ outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF32);
+ else
+ outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF);
+ sreloc = elf_section_data (input_section)->sreloc;
+ if (sreloc == NULL)
+ abort ();
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel);
+ bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc);
+ if (indx)
+ continue;
+ else if (r_type == R_386_TLS_LE_32)
+ relocation = dtpoff_base (info) - relocation;
+ else
+ relocation -= dtpoff_base (info);
+ }
+ else if (r_type == R_386_TLS_LE_32)
+ relocation = tpoff (info, relocation);
+ else
+ relocation = -tpoff (info, relocation);
break;
default:
if (unresolved_reloc
&& !((input_section->flags & SEC_DEBUGGING) != 0
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
- (*_bfd_error_handler)
- (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
- bfd_archive_filename (input_bfd),
- bfd_get_section_name (input_bfd, input_section),
- (long) rel->r_offset,
- h->root.root.string);
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
+ bfd_archive_filename (input_bfd),
+ bfd_get_section_name (input_bfd, input_section),
+ (long) rel->r_offset,
+ h->root.root.string);
+ return FALSE;
+ }
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
- relocation, (bfd_vma) 0);
+ relocation, 0);
if (r != bfd_reloc_ok)
{
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
- return false;
+ return FALSE;
if (*name == '\0')
name = bfd_section_name (input_bfd, sec);
}
if (r == bfd_reloc_overflow)
{
if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0,
+ (info, name, howto->name, 0,
input_bfd, input_section, rel->r_offset)))
- return false;
+ return FALSE;
}
else
{
bfd_archive_filename (input_bfd),
bfd_get_section_name (input_bfd, input_section),
(long) rel->r_offset, name, (int) r);
- return false;
+ return FALSE;
}
}
}
- return true;
+ return TRUE;
}
/* Finish up dynamic symbol handling. We set the contents of various
dynamic sections here. */
-static boolean
-elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym)
- bfd *output_bfd;
- struct bfd_link_info *info;
- struct elf_link_hash_entry *h;
- Elf_Internal_Sym *sym;
+static bfd_boolean
+elf_i386_finish_dynamic_symbol (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
{
struct elf_i386_link_hash_table *htab;
{
bfd_vma plt_index;
bfd_vma got_offset;
- Elf_Internal_Rel rel;
- Elf32_External_Rel *loc;
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
/* This symbol has an entry in the procedure linkage table. Set
it up. */
+ htab->sgotplt->output_offset
+ got_offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_386_JUMP_SLOT);
- loc = (Elf32_External_Rel *) htab->srelplt->contents + plt_index;
+ loc = htab->srelplt->contents + plt_index * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
{
/* Mark the symbol as undefined, rather than as defined in
- the .plt section. Leave the value alone. This is a clue
+ the .plt section. Leave the value if there were any
+ relocations where pointer equality matters (this is a clue
for the dynamic linker, to make function pointer
comparisons work between an application and shared
- library. */
+ library), otherwise set it to zero. If a function is only
+ called from a binary, there is no need to slow down
+ shared libraries because of that. */
sym->st_shndx = SHN_UNDEF;
+ if ((h->elf_link_hash_flags & ELF_LINK_POINTER_EQUALITY_NEEDED) == 0)
+ sym->st_value = 0;
}
}
if (h->got.offset != (bfd_vma) -1
&& elf_i386_hash_entry(h)->tls_type != GOT_TLS_GD
- && elf_i386_hash_entry(h)->tls_type != GOT_TLS_IE)
+ && (elf_i386_hash_entry(h)->tls_type & GOT_TLS_IE) == 0)
{
- Elf_Internal_Rel rel;
- Elf32_External_Rel *loc;
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
/* This symbol has an entry in the global offset table. Set it
up. */
The entry in the global offset table will already have been
initialized in the relocate_section function. */
if (info->shared
- && (info->symbolic
- || h->dynindx == -1
- || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ && SYMBOL_REFERENCES_LOCAL (info, h))
{
BFD_ASSERT((h->got.offset & 1) != 0);
rel.r_info = ELF32_R_INFO (0, R_386_RELATIVE);
rel.r_info = ELF32_R_INFO (h->dynindx, R_386_GLOB_DAT);
}
- loc = (Elf32_External_Rel *) htab->srelgot->contents;
- loc += htab->srelgot->reloc_count++;
+ loc = htab->srelgot->contents;
+ loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
}
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
{
- Elf_Internal_Rel rel;
- Elf32_External_Rel *loc;
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
/* This symbol needs a copy reloc. Set it up. */
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_386_COPY);
- loc = (Elf32_External_Rel *) htab->srelbss->contents;
- loc += htab->srelbss->reloc_count++;
+ loc = htab->srelbss->contents;
+ loc += htab->srelbss->reloc_count++ * sizeof (Elf32_External_Rel);
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
}
|| strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
sym->st_shndx = SHN_ABS;
- return true;
+ return TRUE;
}
/* Used to decide how to sort relocs in an optimal manner for the
dynamic linker, before writing them out. */
static enum elf_reloc_type_class
-elf_i386_reloc_type_class (rela)
- const Elf_Internal_Rela *rela;
+elf_i386_reloc_type_class (const Elf_Internal_Rela *rela)
{
- switch ((int) ELF32_R_TYPE (rela->r_info))
+ switch (ELF32_R_TYPE (rela->r_info))
{
case R_386_RELATIVE:
return reloc_class_relative;
/* Finish up the dynamic sections. */
-static boolean
-elf_i386_finish_dynamic_sections (output_bfd, info)
- bfd *output_bfd;
- struct bfd_link_info *info;
+static bfd_boolean
+elf_i386_finish_dynamic_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
{
struct elf_i386_link_hash_table *htab;
bfd *dynobj;
break;
case DT_JMPREL:
- dyn.d_un.d_ptr = htab->srelplt->output_section->vma;
+ s = htab->srelplt;
+ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
break;
case DT_PLTRELSZ:
- s = htab->srelplt->output_section;
- if (s->_cooked_size != 0)
- dyn.d_un.d_val = s->_cooked_size;
- else
- dyn.d_un.d_val = s->_raw_size;
+ s = htab->srelplt;
+ dyn.d_un.d_val = s->_raw_size;
break;
case DT_RELSZ:
included in the overall relocs (DT_REL). This is
what Solaris does. However, UnixWare can not handle
that case. Therefore, we override the DT_RELSZ entry
- here to make it not include the JMPREL relocs. Since
- the linker script arranges for .rel.plt to follow all
- other relocation sections, we don't have to worry
- about changing the DT_REL entry. */
- if (htab->srelplt != NULL)
- {
- s = htab->srelplt->output_section;
- if (s->_cooked_size != 0)
- dyn.d_un.d_val -= s->_cooked_size;
- else
- dyn.d_un.d_val -= s->_raw_size;
- }
+ here to make it not include the JMPREL relocs. */
+ s = htab->srelplt;
+ if (s == NULL)
+ continue;
+ dyn.d_un.d_val -= s->_raw_size;
+ break;
+
+ case DT_REL:
+ /* We may not be using the standard ELF linker script.
+ If .rel.plt is the first .rel section, we adjust
+ DT_REL to not include it. */
+ s = htab->srelplt;
+ if (s == NULL)
+ continue;
+ if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
+ continue;
+ dyn.d_un.d_ptr += s->_raw_size;
break;
}
if (htab->sgotplt->_raw_size > 0)
{
bfd_put_32 (output_bfd,
- (sdyn == NULL ? (bfd_vma) 0
+ (sdyn == NULL ? 0
: sdyn->output_section->vma + sdyn->output_offset),
htab->sgotplt->contents);
- bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 4);
- bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 8);
+ bfd_put_32 (output_bfd, 0, htab->sgotplt->contents + 4);
+ bfd_put_32 (output_bfd, 0, htab->sgotplt->contents + 8);
}
elf_section_data (htab->sgotplt->output_section)->this_hdr.sh_entsize = 4;
}
- return true;
+ return TRUE;
}
#define TARGET_LITTLE_SYM bfd_elf32_i386_vec
#define elf_backend_plt_readonly 1
#define elf_backend_want_plt_sym 0
#define elf_backend_got_header_size 12
-#define elf_backend_plt_header_size PLT_ENTRY_SIZE
-#define elf_info_to_howto elf_i386_info_to_howto
+/* Support RELA for objdump of prelink objects. */
+#define elf_info_to_howto elf_i386_info_to_howto_rel
#define elf_info_to_howto_rel elf_i386_info_to_howto_rel
#define bfd_elf32_mkobject elf_i386_mkobject
-#define elf_backend_object_p elf_i386_object_p
#define bfd_elf32_bfd_is_local_label_name elf_i386_is_local_label_name
#define bfd_elf32_bfd_link_hash_table_create elf_i386_link_hash_table_create
#define elf_backend_relocate_section elf_i386_relocate_section
#define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections
-#ifndef ELF32_I386_C_INCLUDED
#include "elf32-target.h"
+
+/* FreeBSD support. */
+
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf32_i386_freebsd_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-i386-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_i386_post_process_headers (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+ Elf_Internal_Ehdr *i_ehdrp;
+
+ i_ehdrp = elf_elfheader (abfd);
+
+ /* Put an ABI label supported by FreeBSD >= 4.1. */
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
+#ifdef OLD_FREEBSD_ABI_LABEL
+ /* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */
+ memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8);
#endif
+}
+
+#undef elf_backend_post_process_headers
+#define elf_backend_post_process_headers elf_i386_post_process_headers
+#undef elf32_bed
+#define elf32_bed elf32_i386_fbsd_bed
+
+#include "elf32-target.h"
projects / binutils.git / blobdiff