/* ADI Blackfin BFD support for 32-bit ELF.
- Copyright 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2005-2018 Free Software Foundation, Inc.
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
+ 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,
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. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/bfin.h"
+#include "dwarf2.h"
+#include "hashtab.h"
/* FUNCTION : bfin_pltpc_reloc
ABSTRACT : TODO : figure out how to handle pltpc relocs. */
bfd *abfd ATTRIBUTE_UNUSED,
arelent *reloc_entry ATTRIBUTE_UNUSED,
asymbol *symbol ATTRIBUTE_UNUSED,
- PTR data ATTRIBUTE_UNUSED,
+ void * data ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
char **error_message ATTRIBUTE_UNUSED)
static bfd_reloc_status_type
bfin_pcrel24_reloc (bfd *abfd,
- arelent *reloc_entry,
- asymbol *symbol,
- PTR data,
- asection *input_section,
- bfd *output_bfd,
- char **error_message ATTRIBUTE_UNUSED)
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
bfd_size_type addr = reloc_entry->address;
/* if rightshift is 1 and the number odd, return error. */
if (howto->rightshift && (relocation & 0x01))
{
- fprintf(stderr, "relocation should be even number\n");
+ _bfd_error_handler (_("relocation should be even number"));
return bfd_reloc_overflow;
}
bfin_imm16_reloc (bfd *abfd,
arelent *reloc_entry,
asymbol *symbol,
- PTR data,
+ void * data,
asection *input_section,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
static bfd_reloc_status_type
bfin_byte4_reloc (bfd *abfd,
- arelent *reloc_entry,
- asymbol *symbol,
- PTR data,
- asection *input_section,
- bfd *output_bfd,
- char **error_message ATTRIBUTE_UNUSED)
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation, x;
bfd_size_type addr = reloc_entry->address;
bfin_bfd_reloc (bfd *abfd,
arelent *reloc_entry,
asymbol *symbol,
- PTR data,
+ void * data,
asection *input_section,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
/* Here the variable relocation holds the final address of the
symbol we are relocating against, plus any addend. */
- if (howto->pc_relative == TRUE)
+ if (howto->pc_relative)
{
relocation -= input_section->output_section->vma + input_section->output_offset;
- if (howto->pcrel_offset == TRUE)
- relocation -= reloc_entry->address;
+ if (howto->pcrel_offset)
+ relocation -= reloc_entry->address;
}
if (relocatable)
bfd_reloc_status_type status;
status = bfd_check_overflow (howto->complain_on_overflow,
- howto->bitsize,
- howto->rightshift,
- bfd_arch_bits_per_address(abfd),
- relocation);
+ howto->bitsize,
+ howto->rightshift,
+ bfd_arch_bits_per_address(abfd),
+ relocation);
if (status != bfd_reloc_ok)
return status;
}
/* If rightshift is 1 and the number odd, return error. */
if (howto->rightshift && (relocation & 0x01))
{
- fprintf(stderr, "relocation should be even number\n");
+ _bfd_error_handler (_("relocation should be even number"));
return bfd_reloc_overflow;
}
{
case 0:
{
- char x = bfd_get_8 (abfd, (char *) data + addr);
- DOIT (x);
- bfd_put_8 (abfd, x, (unsigned char *) data + addr);
+ char x = bfd_get_8 (abfd, (char *) data + addr);
+ DOIT (x);
+ bfd_put_8 (abfd, x, (unsigned char *) data + addr);
}
break;
case 1:
{
- unsigned short x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
- DOIT (x);
- bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + addr);
+ unsigned short x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
+ DOIT (x);
+ bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + addr);
}
break;
the relocation stack. . */
#define BFIN_RELOC_MIN 0
-#define BFIN_RELOC_MAX 0x13
+#define BFIN_RELOC_MAX 0x21
#define BFIN_GNUEXT_RELOC_MIN 0x40
#define BFIN_GNUEXT_RELOC_MAX 0x43
#define BFIN_ARELOC_MIN 0xE0
static reloc_howto_type bfin_howto_table [] =
{
/* This reloc does nothing. . */
- HOWTO (R_unused0, /* type. */
+ HOWTO (R_BFIN_UNUSED0, /* type. */
0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
+ 3, /* size (0 = byte, 1 = short, 2 = long). */
+ 0, /* bitsize. */
FALSE, /* pc_relative. */
0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
+ complain_overflow_dont, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
- "R_unused0", /* name. */
+ "R_BFIN_UNUSED0", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0, /* dst_mask. */
FALSE), /* pcrel_offset. */
- HOWTO (R_pcrel5m2, /* type. */
+ HOWTO (R_BFIN_PCREL5M2, /* type. */
1, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long).. */
4, /* bitsize. */
0, /* bitpos. */
complain_overflow_unsigned, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_pcrel5m2", /* name. */
+ "R_BFIN_PCREL5M2", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x0000000F, /* dst_mask. */
FALSE), /* pcrel_offset. */
- HOWTO (R_unused1, /* type. */
+ HOWTO (R_BFIN_UNUSED1, /* type. */
0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
+ 3, /* size (0 = byte, 1 = short, 2 = long). */
+ 0, /* bitsize. */
FALSE, /* pc_relative. */
0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
+ complain_overflow_dont, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
- "R_unused1", /* name. */
+ "R_BFIN_UNUSED1", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0, /* dst_mask. */
FALSE), /* pcrel_offset. */
- HOWTO (R_pcrel10, /* type. */
+ HOWTO (R_BFIN_PCREL10, /* type. */
1, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
10, /* bitsize. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_pcrel10", /* name. */
+ "R_BFIN_PCREL10", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x000003FF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_pcrel12_jump, /* type. */
+ HOWTO (R_BFIN_PCREL12_JUMP, /* type. */
1, /* rightshift. */
/* the offset is actually 13 bit
aligned on a word boundary so
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_pcrel12_jump", /* name. */
+ "R_BFIN_PCREL12_JUMP", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x0FFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_rimm16, /* type. */
+ HOWTO (R_BFIN_RIMM16, /* type. */
0, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
16, /* bitsize. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_imm16_reloc, /* special_function. */
- "R_rimm16", /* name. */
+ "R_BFIN_RIMM16", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x0000FFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_luimm16, /* type. */
+ HOWTO (R_BFIN_LUIMM16, /* type. */
0, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
16, /* bitsize. */
0, /* bitpos. */
complain_overflow_dont, /* complain_on_overflow. */
bfin_imm16_reloc, /* special_function. */
- "R_luimm16", /* name. */
+ "R_BFIN_LUIMM16", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x0000FFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_huimm16, /* type. */
+ HOWTO (R_BFIN_HUIMM16, /* type. */
16, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
16, /* bitsize. */
0, /* bitpos. */
complain_overflow_unsigned, /* complain_on_overflow. */
bfin_imm16_reloc, /* special_function. */
- "R_huimm16", /* name. */
+ "R_BFIN_HUIMM16", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x0000FFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_pcrel12_jump_s, /* type. */
+ HOWTO (R_BFIN_PCREL12_JUMP_S, /* type. */
1, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
12, /* bitsize. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_pcrel12_jump_s", /* name. */
+ "R_BFIN_PCREL12_JUMP_S", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x00000FFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_pcrel24_jump_x, /* type. */
- 1, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 24, /* bitsize. */
- TRUE, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_signed, /* complain_on_overflow. */
- bfin_pcrel24_reloc, /* special_function. */
- "R_pcrel24_jump_x", /* name. */
+ HOWTO (R_BFIN_PCREL24_JUMP_X, /* type. */
+ 1, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 24, /* bitsize. */
+ TRUE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_signed, /* complain_on_overflow. */
+ bfin_pcrel24_reloc, /* special_function. */
+ "R_BFIN_PCREL24_JUMP_X", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x00FFFFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_pcrel24, /* type. */
+ HOWTO (R_BFIN_PCREL24, /* type. */
1, /* rightshift. */
2, /* size (0 = byte, 1 = short, 2 = long). */
24, /* bitsize. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_pcrel24_reloc, /* special_function. */
- "R_pcrel24", /* name. */
+ "R_BFIN_PCREL24", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x00FFFFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_unusedb, /* type. */
+ HOWTO (R_BFIN_UNUSEDB, /* type. */
0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
+ 3, /* size (0 = byte, 1 = short, 2 = long). */
+ 0, /* bitsize. */
FALSE, /* pc_relative. */
0, /* bitpos. */
complain_overflow_dont, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
- "R_unusedb", /* name. */
+ "R_BFIN_UNUSEDB", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0, /* dst_mask. */
FALSE), /* pcrel_offset. */
- HOWTO (R_unusedc, /* type. */
+ HOWTO (R_BFIN_UNUSEDC, /* type. */
0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
+ 3, /* size (0 = byte, 1 = short, 2 = long). */
+ 0, /* bitsize. */
FALSE, /* pc_relative. */
0, /* bitpos. */
complain_overflow_dont, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
- "R_unusedc", /* name. */
+ "R_BFIN_UNUSEDC", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0, /* dst_mask. */
FALSE), /* pcrel_offset. */
- HOWTO (R_pcrel24_jump_l, /* type. */
+ HOWTO (R_BFIN_PCREL24_JUMP_L, /* type. */
1, /* rightshift. */
2, /* size (0 = byte, 1 = short, 2 = long). */
24, /* bitsize. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_pcrel24_reloc, /* special_function. */
- "R_pcrel24_jump_l", /* name. */
+ "R_BFIN_PCREL24_JUMP_L", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x00FFFFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_pcrel24_call_x, /* type. */
+ HOWTO (R_BFIN_PCREL24_CALL_X, /* type. */
1, /* rightshift. */
2, /* size (0 = byte, 1 = short, 2 = long). */
24, /* bitsize. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_pcrel24_reloc, /* special_function. */
- "R_pcrel24_call_x", /* name. */
+ "R_BFIN_PCREL24_CALL_X", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x00FFFFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_var_eq_symb, /* type. */
+ HOWTO (R_BFIN_VAR_EQ_SYMB, /* type. */
0, /* rightshift. */
2, /* size (0 = byte, 1 = short, 2 = long). */
32, /* bitsize. */
0, /* bitpos. */
complain_overflow_bitfield, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_var_eq_symb", /* name. */
+ "R_BFIN_VAR_EQ_SYMB", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0, /* dst_mask. */
FALSE), /* pcrel_offset. */
- HOWTO (R_byte_data, /* type. */
+ HOWTO (R_BFIN_BYTE_DATA, /* type. */
0, /* rightshift. */
0, /* size (0 = byte, 1 = short, 2 = long). */
8, /* bitsize. */
0, /* bitpos. */
complain_overflow_unsigned, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_byte_data", /* name. */
+ "R_BFIN_BYTE_DATA", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0xFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_byte2_data, /* type. */
+ HOWTO (R_BFIN_BYTE2_DATA, /* type. */
0, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
16, /* bitsize. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_byte2_data", /* name. */
+ "R_BFIN_BYTE2_DATA", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0xFFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_byte4_data, /* type. */
+ HOWTO (R_BFIN_BYTE4_DATA, /* type. */
0, /* rightshift. */
2, /* size (0 = byte, 1 = short, 2 = long). */
32, /* bitsize. */
0, /* bitpos. */
complain_overflow_unsigned, /* complain_on_overflow. */
bfin_byte4_reloc, /* special_function. */
- "R_byte4_data", /* name. */
+ "R_BFIN_BYTE4_DATA", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0xFFFFFFFF, /* dst_mask. */
TRUE), /* pcrel_offset. */
- HOWTO (R_pcrel11, /* type. */
+ HOWTO (R_BFIN_PCREL11, /* type. */
1, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
10, /* bitsize. */
0, /* bitpos. */
complain_overflow_unsigned, /* complain_on_overflow. */
bfin_bfd_reloc, /* special_function. */
- "R_pcrel11", /* name. */
+ "R_BFIN_PCREL11", /* name. */
FALSE, /* partial_inplace. */
0, /* src_mask. */
0x000003FF, /* dst_mask. */
FALSE), /* pcrel_offset. */
+
+
+ /* A 18-bit signed operand with the GOT offset for the address of
+ the symbol. */
+ HOWTO (R_BFIN_GOT17M4, /* type */
+ 2, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_GOT17M4", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The upper 16 bits of the GOT offset for the address of the
+ symbol. */
+ HOWTO (R_BFIN_GOTHI, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_GOTHI", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The lower 16 bits of the GOT offset for the address of the
+ symbol. */
+ HOWTO (R_BFIN_GOTLO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_GOTLO", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The 32-bit address of the canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_FUNCDESC", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 12-bit signed operand with the GOT offset for the address of
+ canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC_GOT17M4, /* type */
+ 2, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_FUNCDESC_GOT17M4", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The upper 16 bits of the GOT offset for the address of the
+ canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC_GOTHI, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_FUNCDESC_GOTHI", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The lower 16 bits of the GOT offset for the address of the
+ canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC_GOTLO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_FUNCDESC_GOTLO", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The 32-bit address of the canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC_VALUE, /* type */
+ 0, /* rightshift */
+ 2, /* 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_BFIN_FUNCDESC_VALUE", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 12-bit signed operand with the GOT offset for the address of
+ canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC_GOTOFF17M4, /* type */
+ 2, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_FUNCDESC_GOTOFF17M4", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The upper 16 bits of the GOT offset for the address of the
+ canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC_GOTOFFHI, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_FUNCDESC_GOTOFFHI", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The lower 16 bits of the GOT offset for the address of the
+ canonical descriptor of a function. */
+ HOWTO (R_BFIN_FUNCDESC_GOTOFFLO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_FUNCDESC_GOTOFFLO", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 12-bit signed operand with the GOT offset for the address of
+ the symbol. */
+ HOWTO (R_BFIN_GOTOFF17M4, /* type */
+ 2, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_GOTOFF17M4", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The upper 16 bits of the GOT offset for the address of the
+ symbol. */
+ HOWTO (R_BFIN_GOTOFFHI, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_GOTOFFHI", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* The lower 16 bits of the GOT offset for the address of the
+ symbol. */
+ HOWTO (R_BFIN_GOTOFFLO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_BFIN_GOTOFFLO", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
};
static reloc_howto_type bfin_gnuext_howto_table [] =
{
- HOWTO (R_pltpc, /* type. */
+ HOWTO (R_BFIN_PLTPC, /* type. */
0, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
16, /* bitsize. */
0, /* bitpos. */
complain_overflow_bitfield, /* complain_on_overflow. */
bfin_pltpc_reloc, /* special_function. */
- "R_pltpc", /* name. */
+ "R_BFIN_PLTPC", /* name. */
FALSE, /* partial_inplace. */
0xffff, /* src_mask. */
0xffff, /* dst_mask. */
FALSE), /* pcrel_offset. */
- HOWTO (R_got, /* type. */
+ HOWTO (R_BFIN_GOT, /* type. */
0, /* rightshift. */
1, /* size (0 = byte, 1 = short, 2 = long). */
16, /* bitsize. */
0, /* bitpos. */
complain_overflow_bitfield, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
- "R_got", /* name. */
+ "R_BFIN_GOT", /* name. */
FALSE, /* partial_inplace. */
0x7fff, /* src_mask. */
0x7fff, /* dst_mask. */
FALSE), /* pcrel_offset. */
/* GNU extension to record C++ vtable hierarchy. */
- HOWTO (R_BFIN_GNU_VTINHERIT, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 0, /* bitsize. */
- FALSE, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_dont, /* complain_on_overflow. */
- NULL, /* special_function. */
- "R_BFIN_GNU_VTINHERIT", /* name. */
- FALSE, /* partial_inplace. */
- 0, /* src_mask. */
- 0, /* dst_mask. */
- FALSE), /* pcrel_offset. */
+ HOWTO (R_BFIN_GNU_VTINHERIT, /* type. */
+ 0, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 0, /* bitsize. */
+ FALSE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_dont, /* complain_on_overflow. */
+ NULL, /* special_function. */
+ "R_BFIN_GNU_VTINHERIT", /* name. */
+ FALSE, /* partial_inplace. */
+ 0, /* src_mask. */
+ 0, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
/* GNU extension to record C++ vtable member usage. */
HOWTO (R_BFIN_GNU_VTENTRY, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 0, /* bitsize. */
- FALSE, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_dont, /* complain_on_overflow. */
- _bfd_elf_rel_vtable_reloc_fn, /* special_function. */
- "R_BFIN_GNU_VTENTRY", /* name. */
- FALSE, /* partial_inplace. */
- 0, /* src_mask. */
- 0, /* dst_mask. */
- FALSE) /* pcrel_offset. */
+ 0, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 0, /* bitsize. */
+ FALSE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_dont, /* complain_on_overflow. */
+ _bfd_elf_rel_vtable_reloc_fn, /* special_function. */
+ "R_BFIN_GNU_VTENTRY", /* name. */
+ FALSE, /* partial_inplace. */
+ 0, /* src_mask. */
+ 0, /* dst_mask. */
+ FALSE) /* pcrel_offset. */
};
struct bfin_reloc_map
{
- bfd_reloc_code_real_type bfd_reloc_val;
+ bfd_reloc_code_real_type bfd_reloc_val;
unsigned int bfin_reloc_val;
};
static const struct bfin_reloc_map bfin_reloc_map [] =
{
- { BFD_RELOC_NONE, R_unused0 },
- { BFD_RELOC_BFIN_5_PCREL, R_pcrel5m2 },
- { BFD_RELOC_NONE, R_unused1 },
- { BFD_RELOC_BFIN_10_PCREL, R_pcrel10 },
- { BFD_RELOC_BFIN_12_PCREL_JUMP, R_pcrel12_jump },
- { BFD_RELOC_BFIN_16_IMM, R_rimm16 },
- { BFD_RELOC_BFIN_16_LOW, R_luimm16 },
- { BFD_RELOC_BFIN_16_HIGH, R_huimm16 },
- { BFD_RELOC_BFIN_12_PCREL_JUMP_S, R_pcrel12_jump_s },
- { BFD_RELOC_24_PCREL, R_pcrel24 },
- { BFD_RELOC_24_PCREL, R_pcrel24 },
- { BFD_RELOC_BFIN_24_PCREL_JUMP_L, R_pcrel24_jump_l },
- { BFD_RELOC_NONE, R_unusedb },
- { BFD_RELOC_NONE, R_unusedc },
- { BFD_RELOC_BFIN_24_PCREL_CALL_X, R_pcrel24_call_x },
- { BFD_RELOC_8, R_byte_data },
- { BFD_RELOC_16, R_byte2_data },
- { BFD_RELOC_32, R_byte4_data },
- { BFD_RELOC_BFIN_11_PCREL, R_pcrel11 },
- { BFD_RELOC_BFIN_GOT, R_got },
- { BFD_RELOC_BFIN_PLTPC, R_pltpc },
+ { BFD_RELOC_NONE, R_BFIN_UNUSED0 },
+ { BFD_RELOC_BFIN_5_PCREL, R_BFIN_PCREL5M2 },
+ { BFD_RELOC_NONE, R_BFIN_UNUSED1 },
+ { BFD_RELOC_BFIN_10_PCREL, R_BFIN_PCREL10 },
+ { BFD_RELOC_BFIN_12_PCREL_JUMP, R_BFIN_PCREL12_JUMP },
+ { BFD_RELOC_BFIN_16_IMM, R_BFIN_RIMM16 },
+ { BFD_RELOC_BFIN_16_LOW, R_BFIN_LUIMM16 },
+ { BFD_RELOC_BFIN_16_HIGH, R_BFIN_HUIMM16 },
+ { BFD_RELOC_BFIN_12_PCREL_JUMP_S, R_BFIN_PCREL12_JUMP_S },
+ { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
+ { BFD_RELOC_24_PCREL, R_BFIN_PCREL24 },
+ { BFD_RELOC_BFIN_24_PCREL_JUMP_L, R_BFIN_PCREL24_JUMP_L },
+ { BFD_RELOC_NONE, R_BFIN_UNUSEDB },
+ { BFD_RELOC_NONE, R_BFIN_UNUSEDC },
+ { BFD_RELOC_BFIN_24_PCREL_CALL_X, R_BFIN_PCREL24_CALL_X },
+ { BFD_RELOC_8, R_BFIN_BYTE_DATA },
+ { BFD_RELOC_16, R_BFIN_BYTE2_DATA },
+ { BFD_RELOC_32, R_BFIN_BYTE4_DATA },
+ { BFD_RELOC_BFIN_11_PCREL, R_BFIN_PCREL11 },
+ { BFD_RELOC_BFIN_GOT, R_BFIN_GOT },
+ { BFD_RELOC_BFIN_PLTPC, R_BFIN_PLTPC },
+
+ { BFD_RELOC_BFIN_GOT17M4, R_BFIN_GOT17M4 },
+ { BFD_RELOC_BFIN_GOTHI, R_BFIN_GOTHI },
+ { BFD_RELOC_BFIN_GOTLO, R_BFIN_GOTLO },
+ { BFD_RELOC_BFIN_FUNCDESC, R_BFIN_FUNCDESC },
+ { BFD_RELOC_BFIN_FUNCDESC_GOT17M4, R_BFIN_FUNCDESC_GOT17M4 },
+ { BFD_RELOC_BFIN_FUNCDESC_GOTHI, R_BFIN_FUNCDESC_GOTHI },
+ { BFD_RELOC_BFIN_FUNCDESC_GOTLO, R_BFIN_FUNCDESC_GOTLO },
+ { BFD_RELOC_BFIN_FUNCDESC_VALUE, R_BFIN_FUNCDESC_VALUE },
+ { BFD_RELOC_BFIN_FUNCDESC_GOTOFF17M4, R_BFIN_FUNCDESC_GOTOFF17M4 },
+ { BFD_RELOC_BFIN_FUNCDESC_GOTOFFHI, R_BFIN_FUNCDESC_GOTOFFHI },
+ { BFD_RELOC_BFIN_FUNCDESC_GOTOFFLO, R_BFIN_FUNCDESC_GOTOFFLO },
+ { BFD_RELOC_BFIN_GOTOFF17M4, R_BFIN_GOTOFF17M4 },
+ { BFD_RELOC_BFIN_GOTOFFHI, R_BFIN_GOTOFFHI },
+ { BFD_RELOC_BFIN_GOTOFFLO, R_BFIN_GOTOFFLO },
+
{ BFD_RELOC_VTABLE_INHERIT, R_BFIN_GNU_VTINHERIT },
{ BFD_RELOC_VTABLE_ENTRY, R_BFIN_GNU_VTENTRY },
};
static void
bfin_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
- arelent *cache_ptr,
- Elf_Internal_Rela *dst)
+ arelent *cache_ptr,
+ Elf_Internal_Rela *dst)
{
unsigned int r_type;
else
cache_ptr->howto = (reloc_howto_type *) NULL;
-
}
+
/* Given a BFD reloc type, return the howto. */
static reloc_howto_type *
bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
- unsigned int r_type = BFIN_RELOC_MIN;
+ unsigned int r_type = (unsigned int) -1;
- for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); --i;)
+ for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); i--;)
if (bfin_reloc_map[i].bfd_reloc_val == code)
r_type = bfin_reloc_map[i].bfin_reloc_val;
- if (r_type <= BFIN_RELOC_MAX && r_type > BFIN_RELOC_MIN)
+ if (r_type <= BFIN_RELOC_MAX)
return &bfin_howto_table [r_type];
else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX)
return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
return (reloc_howto_type *) NULL;
+}
+
+static reloc_howto_type *
+bfin_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < (sizeof (bfin_howto_table)
+ / sizeof (bfin_howto_table[0]));
+ i++)
+ if (bfin_howto_table[i].name != NULL
+ && strcasecmp (bfin_howto_table[i].name, r_name) == 0)
+ return &bfin_howto_table[i];
+
+ for (i = 0;
+ i < (sizeof (bfin_gnuext_howto_table)
+ / sizeof (bfin_gnuext_howto_table[0]));
+ i++)
+ if (bfin_gnuext_howto_table[i].name != NULL
+ && strcasecmp (bfin_gnuext_howto_table[i].name, r_name) == 0)
+ return &bfin_gnuext_howto_table[i];
+ return NULL;
}
+
/* Given a bfin relocation type, return the howto. */
static reloc_howto_type *
bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
- unsigned int r_type)
+ unsigned int r_type)
{
if (r_type <= BFIN_RELOC_MAX)
return &bfin_howto_table [r_type];
return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
return (reloc_howto_type *) NULL;
+}
+
+/* Set by ld emulation if --code-in-l1. */
+bfd_boolean elf32_bfin_code_in_l1 = 0;
+/* Set by ld emulation if --data-in-l1. */
+bfd_boolean elf32_bfin_data_in_l1 = 0;
+
+static void
+elf32_bfin_final_write_processing (bfd *abfd,
+ bfd_boolean linker ATTRIBUTE_UNUSED)
+{
+ if (elf32_bfin_code_in_l1)
+ elf_elfheader (abfd)->e_flags |= EF_BFIN_CODE_IN_L1;
+ if (elf32_bfin_data_in_l1)
+ elf_elfheader (abfd)->e_flags |= EF_BFIN_DATA_IN_L1;
}
/* Return TRUE if the name is a local label.
bfin local labels begin with L$. */
static bfd_boolean
-bfin_is_local_label_name (
- bfd *abfd ATTRIBUTE_UNUSED,
- const char *label)
+bfin_is_local_label_name (bfd *abfd, const char *label)
{
if (label[0] == 'L' && label[1] == '$' )
return TRUE;
return _bfd_elf_is_local_label_name (abfd, label);
}
-
-
+\f
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table or procedure linkage
table. */
bfin_check_relocs (bfd * abfd,
struct bfd_link_info *info,
asection *sec,
- const Elf_Internal_Rela *relocs)
+ const Elf_Internal_Rela *relocs)
{
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
const Elf_Internal_Rela *rel_end;
asection *sgot;
asection *srelgot;
- asection *sreloc;
- if (info->relocatable)
+
+ if (bfd_link_relocatable (info))
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
sgot = NULL;
srelgot = NULL;
- sreloc = NULL;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ }
switch (ELF32_R_TYPE (rel->r_info))
{
/* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_BFIN_GNU_VTINHERIT:
- if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return FALSE;
- break;
-
- /* This relocation describes which C++ vtable entries
- are actually used. Record for later use during GC. */
- case R_BFIN_GNU_VTENTRY:
- if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return FALSE;
- break;
-
- case R_got:
+ Reconstruct it for later use during GC. */
+ case R_BFIN_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries
+ are actually used. Record for later use during GC. */
+ case R_BFIN_GNU_VTENTRY:
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+
+ case R_BFIN_GOT:
if (h != NULL
- && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
break;
/* Fall through. */
return FALSE;
}
- if (sgot == NULL)
- {
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
-
- if (srelgot == NULL && (h != NULL || info->shared))
- {
- srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
- if (srelgot == NULL)
- {
- srelgot = bfd_make_section (dynobj, ".rela.got");
- if (srelgot == NULL
- || !bfd_set_section_flags (dynobj, srelgot,
- (SEC_ALLOC
- | SEC_LOAD
- | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY
- | SEC_LINKER_CREATED
- | SEC_READONLY))
- || !bfd_set_section_alignment (dynobj, srelgot, 2))
- return FALSE;
- }
- }
+ sgot = elf_hash_table (info)->sgot;
+ srelgot = elf_hash_table (info)->srelgot;
+ BFD_ASSERT (sgot != NULL);
if (h != NULL)
{
if (local_got_refcounts[r_symndx] == 0)
{
sgot->size += 4;
- if (info->shared)
+ if (bfd_link_pic (info))
{
/* If we are generating a shared object, we need to
- output a R_68K_RELATIVE reloc so that the dynamic
- linker can adjust this GOT entry. */
+ output a R_68K_RELATIVE reloc so that the dynamic
+ linker can adjust this GOT entry. */
srelgot->size += sizeof (Elf32_External_Rela);
}
}
}
static enum elf_reloc_type_class
-elf32_bfin_reloc_type_class (const Elf_Internal_Rela * rela)
+elf32_bfin_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const asection *rel_sec ATTRIBUTE_UNUSED,
+ const Elf_Internal_Rela * rela)
{
switch ((int) ELF32_R_TYPE (rela->r_info))
{
return reloc_class_normal;
}
}
+\f
+static bfd_reloc_status_type
+bfin_final_link_relocate (Elf_Internal_Rela *rel, reloc_howto_type *howto,
+ bfd *input_bfd, asection *input_section,
+ bfd_byte *contents, bfd_vma address,
+ bfd_vma value, bfd_vma addend)
+{
+ int r_type = ELF32_R_TYPE (rel->r_info);
+
+ if (r_type == R_BFIN_PCREL24 || r_type == R_BFIN_PCREL24_JUMP_L)
+ {
+ bfd_reloc_status_type r = bfd_reloc_ok;
+ bfd_vma x;
+
+ if (address > bfd_get_section_limit (input_bfd, input_section))
+ return bfd_reloc_outofrange;
+
+ value += addend;
+
+ /* Perform usual pc-relative correction. */
+ value -= input_section->output_section->vma + input_section->output_offset;
+ value -= address;
+
+ /* We are getting reloc_entry->address 2 byte off from
+ the start of instruction. Assuming absolute postion
+ of the reloc data. But, following code had been written assuming
+ reloc address is starting at begining of instruction.
+ To compensate that I have increased the value of
+ relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
+
+ value += 2;
+ address -= 2;
+
+ if ((value & 0xFF000000) != 0
+ && (value & 0xFF000000) != 0xFF000000)
+ r = bfd_reloc_overflow;
+
+ value >>= 1;
+
+ x = bfd_get_16 (input_bfd, contents + address);
+ x = (x & 0xff00) | ((value >> 16) & 0xff);
+ bfd_put_16 (input_bfd, x, contents + address);
+
+ x = bfd_get_16 (input_bfd, contents + address + 2);
+ x = value & 0xFFFF;
+ bfd_put_16 (input_bfd, x, contents + address + 2);
+ return r;
+ }
+
+ return _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
+ rel->r_offset, value, addend);
+
+}
static bfd_boolean
bfin_relocate_section (bfd * output_bfd,
struct elf_link_hash_entry **sym_hashes;
bfd_vma *local_got_offsets;
asection *sgot;
- asection *sreloc;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
int i = 0;
- if (info->relocatable)
- return TRUE;
-
dynobj = elf_hash_table (info)->dynobj;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
local_got_offsets = elf_local_got_offsets (input_bfd);
sgot = NULL;
- sreloc = NULL;
rel = relocs;
relend = relocs + input_section->reloc_count;
}
if (r_type == R_BFIN_GNU_VTENTRY
- || r_type == R_BFIN_GNU_VTINHERIT)
+ || r_type == R_BFIN_GNU_VTINHERIT)
continue;
howto = bfin_reloc_type_lookup (input_bfd, r_type);
}
else
{
- bfd_boolean warned;
- h = NULL;
+ bfd_boolean warned, ignored;
+
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
- unresolved_reloc, warned);
+ unresolved_reloc, warned, ignored);
}
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ if (bfd_link_relocatable (info))
+ continue;
+
address = rel->r_offset;
/* Then, process normally. */
case R_BFIN_GNU_VTENTRY:
return bfd_reloc_ok;
- case R_got:
+ case R_BFIN_GOT:
/* Relocation is to the address of the entry for this symbol
in the global offset table. */
if (h != NULL
- && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ && strcmp (h->root.root.string, "__GLOBAL_OFFSET_TABLE_") == 0)
goto do_default;
/* Fall through. */
/* Relocation is the offset of the entry for this symbol in
{
bfd_vma off;
- if (sgot == NULL)
+ if (dynobj == NULL)
{
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
+ /* Create the .got section. */
+ elf_hash_table (info)->dynobj = dynobj = output_bfd;
+ if (!_bfd_elf_create_got_section (dynobj, info))
+ return FALSE;
}
+ sgot = elf_hash_table (info)->sgot;
+ BFD_ASSERT (sgot != NULL);
+
if (h != NULL)
{
bfd_boolean dyn;
BFD_ASSERT (off != (bfd_vma) - 1);
dyn = elf_hash_table (info)->dynamic_sections_created;
- if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
- || (info->shared
+ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
+ bfd_link_pic (info),
+ h)
+ || (bfd_link_pic (info)
&& (info->symbolic
|| h->dynindx == -1
|| h->forced_local)
{
bfd_put_32 (output_bfd, relocation, sgot->contents + off);
- if (info->shared)
+ if (bfd_link_pic (info))
{
asection *s;
Elf_Internal_Rela outrel;
bfd_byte *loc;
- s = bfd_get_section_by_name (dynobj, ".rela.got");
+ s = elf_hash_table (info)->srelgot;
BFD_ASSERT (s != NULL);
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset + off);
outrel.r_info =
- ELF32_R_INFO (0, R_pcrel24);
+ ELF32_R_INFO (0, R_BFIN_PCREL24);
outrel.r_addend = relocation;
loc = s->contents;
loc +=
relocation = sgot->output_offset + off;
rel->r_addend = 0;
- /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */
- relocation /= 4;
+ /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */
+ relocation /= 4;
}
goto do_default;
- case R_pcrel24:
- case R_pcrel24_jump_l:
- {
- bfd_vma x;
-
- relocation += rel->r_addend;
-
- /* Perform usual pc-relative correction. */
- relocation -= input_section->output_section->vma + input_section->output_offset;
- relocation -= address;
-
- /* We are getting reloc_entry->address 2 byte off from
- the start of instruction. Assuming absolute postion
- of the reloc data. But, following code had been written assuming
- reloc address is starting at begining of instruction.
- To compensate that I have increased the value of
- relocation by 1 (effectively 2) and used the addr -2 instead of addr. */
-
- relocation += 2;
- address -= 2;
-
- relocation >>= 1;
-
- x = bfd_get_16 (input_bfd, contents + address);
- x = (x & 0xff00) | ((relocation >> 16) & 0xff);
- bfd_put_16 (input_bfd, x, contents + address);
-
- x = bfd_get_16 (input_bfd, contents + address + 2);
- x = relocation & 0xFFFF;
- bfd_put_16 (input_bfd, x, contents + address + 2);
- r = bfd_reloc_ok;
- }
- break;
-
default:
do_default:
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
contents, address,
relocation, rel->r_addend);
}
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
- because such sections are not SEC_ALLOC and thus ld.so will
- not process them. */
+ because such sections are not SEC_ALLOC and thus ld.so will
+ not process them. */
if (unresolved_reloc
- && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic))
+ && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic)
+ && _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset) != (bfd_vma) -1)
{
- (*_bfd_error_handler)
- (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"),
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%B(%A+%#Lx): unresolvable relocation against symbol `%s'"),
input_bfd,
- input_section, (long) rel->r_offset, h->root.root.string);
+ input_section, rel->r_offset, h->root.root.string);
return FALSE;
}
}
if (r == bfd_reloc_overflow)
- {
- if (!(info->callbacks->reloc_overflow
- (info, (h ? &h->root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section, rel->r_offset)))
- return FALSE;
- }
+ (*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
else
{
- (*_bfd_error_handler)
- (_("%B(%A+0x%lx): reloc against `%s': error %d"),
- input_bfd, input_section,
- (long) rel->r_offset, name, (int) r);
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%B(%A+%#Lx): reloc against `%s': error %d"),
+ input_bfd, input_section, rel->r_offset, name, (int) r);
return FALSE;
}
}
static asection *
bfin_gc_mark_hook (asection * sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
Elf_Internal_Rela * rel,
struct elf_link_hash_entry *h,
- Elf_Internal_Sym * sym)
+ Elf_Internal_Sym * sym)
{
if (h != NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
- {
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_BFIN_GNU_VTINHERIT:
+ case R_BFIN_GNU_VTENTRY:
+ return NULL;
+ }
- case R_BFIN_GNU_VTINHERIT:
- case R_BFIN_GNU_VTENTRY:
- break;
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
+}
+\f
+extern const bfd_target bfin_elf32_fdpic_vec;
+#define IS_FDPIC(bfd) ((bfd)->xvec == &bfin_elf32_fdpic_vec)
- default:
- switch (h->root.type)
- {
- default:
- break;
+/* An extension of the elf hash table data structure,
+ containing some additional Blackfin-specific data. */
+struct bfinfdpic_elf_link_hash_table
+{
+ struct elf_link_hash_table elf;
+
+ /* A pointer to the .rofixup section. */
+ asection *sgotfixup;
+ /* GOT base offset. */
+ bfd_vma got0;
+ /* Location of the first non-lazy PLT entry, i.e., the number of
+ bytes taken by lazy PLT entries. */
+ bfd_vma plt0;
+ /* A hash table holding information about which symbols were
+ referenced with which PIC-related relocations. */
+ struct htab *relocs_info;
+ /* Summary reloc information collected by
+ _bfinfdpic_count_got_plt_entries. */
+ struct _bfinfdpic_dynamic_got_info *g;
+};
+
+/* Get the Blackfin ELF linker hash table from a link_info structure. */
+
+#define bfinfdpic_hash_table(info) \
+ (elf_hash_table_id ((struct elf_link_hash_table *) ((info)->hash)) \
+ == BFIN_ELF_DATA ? ((struct bfinfdpic_elf_link_hash_table *) ((info)->hash)) : NULL)
+
+#define bfinfdpic_got_section(info) \
+ (bfinfdpic_hash_table (info)->elf.sgot)
+#define bfinfdpic_gotrel_section(info) \
+ (bfinfdpic_hash_table (info)->elf.srelgot)
+#define bfinfdpic_gotfixup_section(info) \
+ (bfinfdpic_hash_table (info)->sgotfixup)
+#define bfinfdpic_plt_section(info) \
+ (bfinfdpic_hash_table (info)->elf.splt)
+#define bfinfdpic_pltrel_section(info) \
+ (bfinfdpic_hash_table (info)->elf.srelplt)
+#define bfinfdpic_relocs_info(info) \
+ (bfinfdpic_hash_table (info)->relocs_info)
+#define bfinfdpic_got_initial_offset(info) \
+ (bfinfdpic_hash_table (info)->got0)
+#define bfinfdpic_plt_initial_offset(info) \
+ (bfinfdpic_hash_table (info)->plt0)
+#define bfinfdpic_dynamic_got_plt_info(info) \
+ (bfinfdpic_hash_table (info)->g)
+
+/* The name of the dynamic interpreter. This is put in the .interp
+ section. */
+
+#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
+
+#define DEFAULT_STACK_SIZE 0x20000
+
+/* This structure is used to collect the number of entries present in
+ each addressable range of the got. */
+struct _bfinfdpic_dynamic_got_info
+{
+ /* Several bits of information about the current link. */
+ struct bfd_link_info *info;
+ /* Total size needed for GOT entries within the 18- or 32-bit
+ ranges. */
+ bfd_vma got17m4, gothilo;
+ /* Total size needed for function descriptor entries within the 18-
+ or 32-bit ranges. */
+ bfd_vma fd17m4, fdhilo;
+ /* Total size needed function descriptor entries referenced in PLT
+ entries, that would be profitable to place in offsets close to
+ the PIC register. */
+ bfd_vma fdplt;
+ /* Total size needed by lazy PLT entries. */
+ bfd_vma lzplt;
+ /* Number of relocations carried over from input object files. */
+ unsigned long relocs;
+ /* Number of fixups introduced by relocations in input object files. */
+ unsigned long fixups;
+};
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
+/* Create a Blackfin ELF linker hash table. */
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
- }
- }
+static struct bfd_link_hash_table *
+bfinfdpic_elf_link_hash_table_create (bfd *abfd)
+{
+ struct bfinfdpic_elf_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct bfinfdpic_elf_link_hash_table);
+
+ ret = bfd_zmalloc (amt);
+ if (ret == NULL)
+ return NULL;
+
+ if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
+ _bfd_elf_link_hash_newfunc,
+ sizeof (struct elf_link_hash_entry),
+ BFIN_ELF_DATA))
+ {
+ free (ret);
+ return NULL;
}
- else
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
- return NULL;
+ return &ret->elf.root;
}
+/* Decide whether a reference to a symbol can be resolved locally or
+ not. If the symbol is protected, we want the local address, but
+ its function descriptor must be assigned by the dynamic linker. */
+#define BFINFDPIC_SYM_LOCAL(INFO, H) \
+ (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
+ || ! elf_hash_table (INFO)->dynamic_sections_created)
+#define BFINFDPIC_FUNCDESC_LOCAL(INFO, H) \
+ ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
+
+/* This structure collects information on what kind of GOT, PLT or
+ function descriptors are required by relocations that reference a
+ certain symbol. */
+struct bfinfdpic_relocs_info
+{
+ /* The index of the symbol, as stored in the relocation r_info, if
+ we have a local symbol; -1 otherwise. */
+ long symndx;
+ union
+ {
+ /* The input bfd in which the symbol is defined, if it's a local
+ symbol. */
+ bfd *abfd;
+ /* If symndx == -1, the hash table entry corresponding to a global
+ symbol (even if it turns out to bind locally, in which case it
+ should ideally be replaced with section's symndx + addend). */
+ struct elf_link_hash_entry *h;
+ } d;
+ /* The addend of the relocation that references the symbol. */
+ bfd_vma addend;
+
+ /* The fields above are used to identify an entry. The fields below
+ contain information on how an entry is used and, later on, which
+ locations it was assigned. */
+ /* The following 2 fields record whether the symbol+addend above was
+ ever referenced with a GOT relocation. The 17M4 suffix indicates a
+ GOT17M4 relocation; hilo is used for GOTLO/GOTHI pairs. */
+ unsigned got17m4;
+ unsigned gothilo;
+ /* Whether a FUNCDESC relocation references symbol+addend. */
+ unsigned fd;
+ /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
+ unsigned fdgot17m4;
+ unsigned fdgothilo;
+ /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
+ unsigned fdgoff17m4;
+ unsigned fdgoffhilo;
+ /* Whether symbol+addend is referenced with GOTOFF17M4, GOTOFFLO or
+ GOTOFFHI relocations. The addend doesn't really matter, since we
+ envision that this will only be used to check whether the symbol
+ is mapped to the same segment as the got. */
+ unsigned gotoff;
+ /* Whether symbol+addend is referenced by a LABEL24 relocation. */
+ unsigned call;
+ /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
+ relocation. */
+ unsigned sym;
+ /* Whether we need a PLT entry for a symbol. Should be implied by
+ something like:
+ (call && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)) */
+ unsigned plt:1;
+ /* Whether a function descriptor should be created in this link unit
+ for symbol+addend. Should be implied by something like:
+ (plt || fdgotoff17m4 || fdgotofflohi
+ || ((fd || fdgot17m4 || fdgothilo)
+ && (symndx != -1 || BFINFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
+ unsigned privfd:1;
+ /* Whether a lazy PLT entry is needed for this symbol+addend.
+ Should be implied by something like:
+ (privfd && symndx == -1 && ! BFINFDPIC_SYM_LOCAL (info, d.h)
+ && ! (info->flags & DF_BIND_NOW)) */
+ unsigned lazyplt:1;
+ /* Whether we've already emitted GOT relocations and PLT entries as
+ needed for this symbol. */
+ unsigned done:1;
+
+ /* The number of R_BFIN_BYTE4_DATA, R_BFIN_FUNCDESC and R_BFIN_FUNCDESC_VALUE
+ relocations referencing the symbol. */
+ unsigned relocs32, relocsfd, relocsfdv;
+
+ /* The number of .rofixups entries and dynamic relocations allocated
+ for this symbol, minus any that might have already been used. */
+ unsigned fixups, dynrelocs;
+
+ /* The offsets of the GOT entries assigned to symbol+addend, to the
+ function descriptor's address, and to a function descriptor,
+ respectively. Should be zero if unassigned. The offsets are
+ counted from the value that will be assigned to the PIC register,
+ not from the beginning of the .got section. */
+ bfd_signed_vma got_entry, fdgot_entry, fd_entry;
+ /* The offsets of the PLT entries assigned to symbol+addend,
+ non-lazy and lazy, respectively. If unassigned, should be
+ (bfd_vma)-1. */
+ bfd_vma plt_entry, lzplt_entry;
+};
-/* Update the got entry reference counts for the section being removed. */
-
-static bfd_boolean
-bfin_gc_sweep_hook (bfd * abfd,
- struct bfd_link_info *info,
- asection * sec,
- const Elf_Internal_Rela * relocs)
+/* Compute a hash with the key fields of an bfinfdpic_relocs_info entry. */
+static hashval_t
+bfinfdpic_relocs_info_hash (const void *entry_)
{
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- bfd_signed_vma *local_got_refcounts;
- const Elf_Internal_Rela *rel, *relend;
- bfd *dynobj;
- asection *sgot;
- asection *srelgot;
+ const struct bfinfdpic_relocs_info *entry = entry_;
- dynobj = elf_hash_table (info)->dynobj;
- if (dynobj == NULL)
- return TRUE;
+ return (entry->symndx == -1
+ ? (long) entry->d.h->root.root.hash
+ : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
+}
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (abfd);
- local_got_refcounts = elf_local_got_refcounts (abfd);
+/* Test whether the key fields of two bfinfdpic_relocs_info entries are
+ identical. */
+static int
+bfinfdpic_relocs_info_eq (const void *entry1, const void *entry2)
+{
+ const struct bfinfdpic_relocs_info *e1 = entry1;
+ const struct bfinfdpic_relocs_info *e2 = entry2;
- sgot = bfd_get_section_by_name (dynobj, ".got");
- srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
+ return e1->symndx == e2->symndx && e1->addend == e2->addend
+ && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
+}
- relend = relocs + sec->reloc_count;
- for (rel = relocs; rel < relend; rel++)
- {
- unsigned long r_symndx;
- struct elf_link_hash_entry *h;
+/* Find or create an entry in a hash table HT that matches the key
+ fields of the given ENTRY. If it's not found, memory for a new
+ entry is allocated in ABFD's obstack. */
+static struct bfinfdpic_relocs_info *
+bfinfdpic_relocs_info_find (struct htab *ht,
+ bfd *abfd,
+ const struct bfinfdpic_relocs_info *entry,
+ enum insert_option insert)
+{
+ struct bfinfdpic_relocs_info **loc;
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_got:
- 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;
- if (h->got.refcount == 0)
- {
- /* We don't need the .got entry any more. */
- sgot->size -= 4;
- srelgot->size -= sizeof (Elf32_External_Rela);
- }
- }
- }
- else if (local_got_refcounts != NULL)
- {
- if (local_got_refcounts[r_symndx] > 0)
- {
- --local_got_refcounts[r_symndx];
- if (local_got_refcounts[r_symndx] == 0)
- {
- /* We don't need the .got entry any more. */
- sgot->size -= 4;
- if (info->shared)
- srelgot->size -= sizeof (Elf32_External_Rela);
- }
- }
- }
- break;
- default:
- break;
- }
- }
+ if (!ht)
+ return NULL;
- return TRUE;
-}
+ loc = (struct bfinfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
+ if (! loc)
+ return NULL;
-/* Merge backend specific data from an object file to the output
- object file when linking. */
-static bfd_boolean
-elf32_bfin_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
-{
- flagword out_flags;
- flagword in_flags;
+ if (*loc)
+ return *loc;
- if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return TRUE;
+ *loc = bfd_zalloc (abfd, sizeof (**loc));
- in_flags = elf_elfheader (ibfd)->e_flags;
- out_flags = elf_elfheader (obfd)->e_flags;
+ if (! *loc)
+ return *loc;
- if (!elf_flags_init (obfd))
- {
- elf_flags_init (obfd) = TRUE;
- elf_elfheader (obfd)->e_flags = in_flags;
- }
+ (*loc)->symndx = entry->symndx;
+ (*loc)->d = entry->d;
+ (*loc)->addend = entry->addend;
+ (*loc)->plt_entry = (bfd_vma)-1;
+ (*loc)->lzplt_entry = (bfd_vma)-1;
- return TRUE;
+ return *loc;
}
+/* Obtain the address of the entry in HT associated with H's symbol +
+ addend, creating a new entry if none existed. ABFD is only used
+ for memory allocation purposes. */
+inline static struct bfinfdpic_relocs_info *
+bfinfdpic_relocs_info_for_global (struct htab *ht,
+ bfd *abfd,
+ struct elf_link_hash_entry *h,
+ bfd_vma addend,
+ enum insert_option insert)
+{
+ struct bfinfdpic_relocs_info entry;
-static bfd_boolean
-elf32_bfin_set_private_flags (bfd * abfd, flagword flags)
+ entry.symndx = -1;
+ entry.d.h = h;
+ entry.addend = addend;
+
+ return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
+}
+
+/* Obtain the address of the entry in HT associated with the SYMNDXth
+ local symbol of the input bfd ABFD, plus the addend, creating a new
+ entry if none existed. */
+inline static struct bfinfdpic_relocs_info *
+bfinfdpic_relocs_info_for_local (struct htab *ht,
+ bfd *abfd,
+ long symndx,
+ bfd_vma addend,
+ enum insert_option insert)
{
- elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = TRUE;
- return TRUE;
+ struct bfinfdpic_relocs_info entry;
+
+ entry.symndx = symndx;
+ entry.d.abfd = abfd;
+ entry.addend = addend;
+
+ return bfinfdpic_relocs_info_find (ht, abfd, &entry, insert);
}
+/* Merge fields set by check_relocs() of two entries that end up being
+ mapped to the same (presumably global) symbol. */
-/* Display the flags field. */
-static bfd_boolean
-elf32_bfin_print_private_bfd_data (bfd * abfd, PTR ptr)
+inline static void
+bfinfdpic_pic_merge_early_relocs_info (struct bfinfdpic_relocs_info *e2,
+ struct bfinfdpic_relocs_info const *e1)
{
- FILE *file = (FILE *) ptr;
+ e2->got17m4 |= e1->got17m4;
+ e2->gothilo |= e1->gothilo;
+ e2->fd |= e1->fd;
+ e2->fdgot17m4 |= e1->fdgot17m4;
+ e2->fdgothilo |= e1->fdgothilo;
+ e2->fdgoff17m4 |= e1->fdgoff17m4;
+ e2->fdgoffhilo |= e1->fdgoffhilo;
+ e2->gotoff |= e1->gotoff;
+ e2->call |= e1->call;
+ e2->sym |= e1->sym;
+}
- BFD_ASSERT (abfd != NULL && ptr != NULL);
+/* Every block of 65535 lazy PLT entries shares a single call to the
+ resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
+ 32767, counting from 0). All other lazy PLT entries branch to it
+ in a single instruction. */
- /* Print normal ELF private data. */
- _bfd_elf_print_private_bfd_data (abfd, ptr);
+#define LZPLT_RESOLVER_EXTRA 10
+#define LZPLT_NORMAL_SIZE 6
+#define LZPLT_ENTRIES 1362
- /* Ignore init flag - it may not be set, despite the flags field
- containing valid data. */
+#define BFINFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) LZPLT_NORMAL_SIZE * LZPLT_ENTRIES + LZPLT_RESOLVER_EXTRA)
+#define BFINFDPIC_LZPLT_RESOLV_LOC (LZPLT_NORMAL_SIZE * LZPLT_ENTRIES / 2)
- /* xgettext:c-format */
- fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
+/* Add a dynamic relocation to the SRELOC section. */
- fputc ('\n', file);
+inline static bfd_vma
+_bfinfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
+ int reloc_type, long dynindx, bfd_vma addend,
+ struct bfinfdpic_relocs_info *entry)
+{
+ Elf_Internal_Rela outrel;
+ bfd_vma reloc_offset;
+
+ outrel.r_offset = offset;
+ outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
+ outrel.r_addend = addend;
+
+ reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
+ BFD_ASSERT (reloc_offset < sreloc->size);
+ bfd_elf32_swap_reloc_out (output_bfd, &outrel,
+ sreloc->contents + reloc_offset);
+ sreloc->reloc_count++;
+
+ /* If the entry's index is zero, this relocation was probably to a
+ linkonce section that got discarded. We reserved a dynamic
+ relocation, but it was for another entry than the one we got at
+ the time of emitting the relocation. Unfortunately there's no
+ simple way for us to catch this situation, since the relocation
+ is cleared right before calling relocate_section, at which point
+ we no longer know what the relocation used to point to. */
+ if (entry->symndx)
+ {
+ BFD_ASSERT (entry->dynrelocs > 0);
+ entry->dynrelocs--;
+ }
- return TRUE;
+ return reloc_offset;
}
-/* bfin ELF linker hash entry. */
+/* Add a fixup to the ROFIXUP section. */
-struct bfin_link_hash_entry
+static bfd_vma
+_bfinfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
+ struct bfinfdpic_relocs_info *entry)
{
- struct elf_link_hash_entry root;
+ bfd_vma fixup_offset;
- /* Number of PC relative relocs copied for this symbol. */
- struct bfin_pcrel_relocs_copied *pcrel_relocs_copied;
-};
+ if (rofixup->flags & SEC_EXCLUDE)
+ return -1;
-/* bfin ELF linker hash table. */
+ fixup_offset = rofixup->reloc_count * 4;
+ if (rofixup->contents)
+ {
+ BFD_ASSERT (fixup_offset < rofixup->size);
+ bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
+ }
+ rofixup->reloc_count++;
-struct bfin_link_hash_table
-{
- struct elf_link_hash_table root;
+ if (entry && entry->symndx)
+ {
+ /* See discussion about symndx == 0 in _bfinfdpic_add_dyn_reloc
+ above. */
+ BFD_ASSERT (entry->fixups > 0);
+ entry->fixups--;
+ }
- /* Small local sym to section mapping cache. */
- struct sym_sec_cache sym_sec;
-};
+ return fixup_offset;
+}
-#define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent))
+/* Find the segment number in which OSEC, and output section, is
+ located. */
-static struct bfd_hash_entry *
-bfin_link_hash_newfunc (struct bfd_hash_entry *entry,
- struct bfd_hash_table *table, const char *string)
+static unsigned
+_bfinfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
{
- struct bfd_hash_entry *ret = entry;
+ Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
- /* Allocate the structure if it has not already been allocated by a
+ return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
+}
+
+inline static bfd_boolean
+_bfinfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
+{
+ unsigned seg = _bfinfdpic_osec_to_segment (output_bfd, osec);
+
+ return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
+}
+
+/* Generate relocations for GOT entries, function descriptors, and
+ code for PLT and lazy PLT entries. */
+
+inline static bfd_boolean
+_bfinfdpic_emit_got_relocs_plt_entries (struct bfinfdpic_relocs_info *entry,
+ bfd *output_bfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ Elf_Internal_Sym *sym,
+ bfd_vma addend)
+{
+ bfd_vma fd_lazy_rel_offset = (bfd_vma) -1;
+ int dynindx = -1;
+
+ if (entry->done)
+ return TRUE;
+ entry->done = 1;
+
+ if (entry->got_entry || entry->fdgot_entry || entry->fd_entry)
+ {
+ /* If the symbol is dynamic, consider it for dynamic
+ relocations, otherwise decay to section + offset. */
+ if (entry->symndx == -1 && entry->d.h->dynindx != -1)
+ dynindx = entry->d.h->dynindx;
+ else
+ {
+ if (sec
+ && sec->output_section
+ && ! bfd_is_abs_section (sec->output_section)
+ && ! bfd_is_und_section (sec->output_section))
+ dynindx = elf_section_data (sec->output_section)->dynindx;
+ else
+ dynindx = 0;
+ }
+ }
+
+ /* Generate relocation for GOT entry pointing to the symbol. */
+ if (entry->got_entry)
+ {
+ int idx = dynindx;
+ bfd_vma ad = addend;
+
+ /* If the symbol is dynamic but binds locally, use
+ section+offset. */
+ if (sec && (entry->symndx != -1
+ || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
+ {
+ if (entry->symndx == -1)
+ ad += entry->d.h->root.u.def.value;
+ else
+ ad += sym->st_value;
+ ad += sec->output_offset;
+ if (sec->output_section && elf_section_data (sec->output_section))
+ idx = elf_section_data (sec->output_section)->dynindx;
+ else
+ idx = 0;
+ }
+
+ /* If we're linking an executable at a fixed address, we can
+ omit the dynamic relocation as long as the symbol is local to
+ this module. */
+ if (bfd_link_pde (info)
+ && (entry->symndx != -1
+ || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
+ {
+ if (sec)
+ ad += sec->output_section->vma;
+ if (entry->symndx != -1
+ || entry->d.h->root.type != bfd_link_hash_undefweak)
+ _bfinfdpic_add_rofixup (output_bfd,
+ bfinfdpic_gotfixup_section (info),
+ bfinfdpic_got_section (info)->output_section
+ ->vma
+ + bfinfdpic_got_section (info)->output_offset
+ + bfinfdpic_got_initial_offset (info)
+ + entry->got_entry, entry);
+ }
+ else
+ _bfinfdpic_add_dyn_reloc (output_bfd, bfinfdpic_gotrel_section (info),
+ _bfd_elf_section_offset
+ (output_bfd, info,
+ bfinfdpic_got_section (info),
+ bfinfdpic_got_initial_offset (info)
+ + entry->got_entry)
+ + bfinfdpic_got_section (info)
+ ->output_section->vma
+ + bfinfdpic_got_section (info)->output_offset,
+ R_BFIN_BYTE4_DATA, idx, ad, entry);
+
+ bfd_put_32 (output_bfd, ad,
+ bfinfdpic_got_section (info)->contents
+ + bfinfdpic_got_initial_offset (info)
+ + entry->got_entry);
+ }
+
+ /* Generate relocation for GOT entry pointing to a canonical
+ function descriptor. */
+ if (entry->fdgot_entry)
+ {
+ int reloc, idx;
+ bfd_vma ad = 0;
+
+ if (! (entry->symndx == -1
+ && entry->d.h->root.type == bfd_link_hash_undefweak
+ && BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
+ {
+ /* If the symbol is dynamic and there may be dynamic symbol
+ resolution because we are, or are linked with, a shared
+ library, emit a FUNCDESC relocation such that the dynamic
+ linker will allocate the function descriptor. If the
+ symbol needs a non-local function descriptor but binds
+ locally (e.g., its visibility is protected, emit a
+ dynamic relocation decayed to section+offset. */
+ if (entry->symndx == -1
+ && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
+ && BFINFDPIC_SYM_LOCAL (info, entry->d.h)
+ && !bfd_link_pde (info))
+ {
+ reloc = R_BFIN_FUNCDESC;
+ idx = elf_section_data (entry->d.h->root.u.def.section
+ ->output_section)->dynindx;
+ ad = entry->d.h->root.u.def.section->output_offset
+ + entry->d.h->root.u.def.value;
+ }
+ else if (entry->symndx == -1
+ && ! BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
+ {
+ reloc = R_BFIN_FUNCDESC;
+ idx = dynindx;
+ ad = addend;
+ if (ad)
+ return FALSE;
+ }
+ else
+ {
+ /* Otherwise, we know we have a private function descriptor,
+ so reference it directly. */
+ if (elf_hash_table (info)->dynamic_sections_created)
+ BFD_ASSERT (entry->privfd);
+ reloc = R_BFIN_BYTE4_DATA;
+ idx = elf_section_data (bfinfdpic_got_section (info)
+ ->output_section)->dynindx;
+ ad = bfinfdpic_got_section (info)->output_offset
+ + bfinfdpic_got_initial_offset (info) + entry->fd_entry;
+ }
+
+ /* If there is room for dynamic symbol resolution, emit the
+ dynamic relocation. However, if we're linking an
+ executable at a fixed location, we won't have emitted a
+ dynamic symbol entry for the got section, so idx will be
+ zero, which means we can and should compute the address
+ of the private descriptor ourselves. */
+ if (bfd_link_pde (info)
+ && (entry->symndx != -1
+ || BFINFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
+ {
+ ad += bfinfdpic_got_section (info)->output_section->vma;
+ _bfinfdpic_add_rofixup (output_bfd,
+ bfinfdpic_gotfixup_section (info),
+ bfinfdpic_got_section (info)
+ ->output_section->vma
+ + bfinfdpic_got_section (info)
+ ->output_offset
+ + bfinfdpic_got_initial_offset (info)
+ + entry->fdgot_entry, entry);
+ }
+ else
+ _bfinfdpic_add_dyn_reloc (output_bfd,
+ bfinfdpic_gotrel_section (info),
+ _bfd_elf_section_offset
+ (output_bfd, info,
+ bfinfdpic_got_section (info),
+ bfinfdpic_got_initial_offset (info)
+ + entry->fdgot_entry)
+ + bfinfdpic_got_section (info)
+ ->output_section->vma
+ + bfinfdpic_got_section (info)
+ ->output_offset,
+ reloc, idx, ad, entry);
+ }
+
+ bfd_put_32 (output_bfd, ad,
+ bfinfdpic_got_section (info)->contents
+ + bfinfdpic_got_initial_offset (info)
+ + entry->fdgot_entry);
+ }
+
+ /* Generate relocation to fill in a private function descriptor in
+ the GOT. */
+ if (entry->fd_entry)
+ {
+ int idx = dynindx;
+ bfd_vma ad = addend;
+ bfd_vma ofst;
+ long lowword, highword;
+
+ /* If the symbol is dynamic but binds locally, use
+ section+offset. */
+ if (sec && (entry->symndx != -1
+ || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
+ {
+ if (entry->symndx == -1)
+ ad += entry->d.h->root.u.def.value;
+ else
+ ad += sym->st_value;
+ ad += sec->output_offset;
+ if (sec->output_section && elf_section_data (sec->output_section))
+ idx = elf_section_data (sec->output_section)->dynindx;
+ else
+ idx = 0;
+ }
+
+ /* If we're linking an executable at a fixed address, we can
+ omit the dynamic relocation as long as the symbol is local to
+ this module. */
+ if (bfd_link_pde (info)
+ && (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (info, entry->d.h)))
+ {
+ if (sec)
+ ad += sec->output_section->vma;
+ ofst = 0;
+ if (entry->symndx != -1
+ || entry->d.h->root.type != bfd_link_hash_undefweak)
+ {
+ _bfinfdpic_add_rofixup (output_bfd,
+ bfinfdpic_gotfixup_section (info),
+ bfinfdpic_got_section (info)
+ ->output_section->vma
+ + bfinfdpic_got_section (info)
+ ->output_offset
+ + bfinfdpic_got_initial_offset (info)
+ + entry->fd_entry, entry);
+ _bfinfdpic_add_rofixup (output_bfd,
+ bfinfdpic_gotfixup_section (info),
+ bfinfdpic_got_section (info)
+ ->output_section->vma
+ + bfinfdpic_got_section (info)
+ ->output_offset
+ + bfinfdpic_got_initial_offset (info)
+ + entry->fd_entry + 4, entry);
+ }
+ }
+ else
+ {
+ ofst
+ = _bfinfdpic_add_dyn_reloc (output_bfd,
+ entry->lazyplt
+ ? bfinfdpic_pltrel_section (info)
+ : bfinfdpic_gotrel_section (info),
+ _bfd_elf_section_offset
+ (output_bfd, info,
+ bfinfdpic_got_section (info),
+ bfinfdpic_got_initial_offset (info)
+ + entry->fd_entry)
+ + bfinfdpic_got_section (info)
+ ->output_section->vma
+ + bfinfdpic_got_section (info)
+ ->output_offset,
+ R_BFIN_FUNCDESC_VALUE, idx, ad, entry);
+ }
+
+ /* If we've omitted the dynamic relocation, just emit the fixed
+ addresses of the symbol and of the local GOT base offset. */
+ if (bfd_link_pde (info)
+ && sec
+ && sec->output_section)
+ {
+ lowword = ad;
+ highword = bfinfdpic_got_section (info)->output_section->vma
+ + bfinfdpic_got_section (info)->output_offset
+ + bfinfdpic_got_initial_offset (info);
+ }
+ else if (entry->lazyplt)
+ {
+ if (ad)
+ return FALSE;
+
+ fd_lazy_rel_offset = ofst;
+
+ /* A function descriptor used for lazy or local resolving is
+ initialized such that its high word contains the output
+ section index in which the PLT entries are located, and
+ the low word contains the address of the lazy PLT entry
+ entry point, that must be within the memory region
+ assigned to that section. */
+ lowword = entry->lzplt_entry + 4
+ + bfinfdpic_plt_section (info)->output_offset
+ + bfinfdpic_plt_section (info)->output_section->vma;
+ highword = _bfinfdpic_osec_to_segment
+ (output_bfd, bfinfdpic_plt_section (info)->output_section);
+ }
+ else
+ {
+ /* A function descriptor for a local function gets the index
+ of the section. For a non-local function, it's
+ disregarded. */
+ lowword = ad;
+ if (sec == NULL
+ || (entry->symndx == -1 && entry->d.h->dynindx != -1
+ && entry->d.h->dynindx == idx))
+ highword = 0;
+ else
+ highword = _bfinfdpic_osec_to_segment
+ (output_bfd, sec->output_section);
+ }
+
+ bfd_put_32 (output_bfd, lowword,
+ bfinfdpic_got_section (info)->contents
+ + bfinfdpic_got_initial_offset (info)
+ + entry->fd_entry);
+ bfd_put_32 (output_bfd, highword,
+ bfinfdpic_got_section (info)->contents
+ + bfinfdpic_got_initial_offset (info)
+ + entry->fd_entry + 4);
+ }
+
+ /* Generate code for the PLT entry. */
+ if (entry->plt_entry != (bfd_vma) -1)
+ {
+ bfd_byte *plt_code = bfinfdpic_plt_section (info)->contents
+ + entry->plt_entry;
+
+ BFD_ASSERT (entry->fd_entry);
+
+ /* Figure out what kind of PLT entry we need, depending on the
+ location of the function descriptor within the GOT. */
+ if (entry->fd_entry >= -(1 << (18 - 1))
+ && entry->fd_entry + 4 < (1 << (18 - 1)))
+ {
+ /* P1 = [P3 + fd_entry]; P3 = [P3 + fd_entry + 4] */
+ bfd_put_32 (output_bfd,
+ 0xe519 | ((entry->fd_entry << 14) & 0xFFFF0000),
+ plt_code);
+ bfd_put_32 (output_bfd,
+ 0xe51b | (((entry->fd_entry + 4) << 14) & 0xFFFF0000),
+ plt_code + 4);
+ plt_code += 8;
+ }
+ else
+ {
+ /* P1.L = fd_entry; P1.H = fd_entry;
+ P3 = P3 + P1;
+ P1 = [P3];
+ P3 = [P3 + 4]; */
+ bfd_put_32 (output_bfd,
+ 0xe109 | (entry->fd_entry << 16),
+ plt_code);
+ bfd_put_32 (output_bfd,
+ 0xe149 | (entry->fd_entry & 0xFFFF0000),
+ plt_code + 4);
+ bfd_put_16 (output_bfd, 0x5ad9, plt_code + 8);
+ bfd_put_16 (output_bfd, 0x9159, plt_code + 10);
+ bfd_put_16 (output_bfd, 0xac5b, plt_code + 12);
+ plt_code += 14;
+ }
+ /* JUMP (P1) */
+ bfd_put_16 (output_bfd, 0x0051, plt_code);
+ }
+
+ /* Generate code for the lazy PLT entry. */
+ if (entry->lzplt_entry != (bfd_vma) -1)
+ {
+ bfd_byte *lzplt_code = bfinfdpic_plt_section (info)->contents
+ + entry->lzplt_entry;
+ bfd_vma resolverStub_addr;
+
+ bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
+ lzplt_code += 4;
+
+ resolverStub_addr = entry->lzplt_entry / BFINFDPIC_LZPLT_BLOCK_SIZE
+ * BFINFDPIC_LZPLT_BLOCK_SIZE + BFINFDPIC_LZPLT_RESOLV_LOC;
+ if (resolverStub_addr >= bfinfdpic_plt_initial_offset (info))
+ resolverStub_addr = bfinfdpic_plt_initial_offset (info) - LZPLT_NORMAL_SIZE - LZPLT_RESOLVER_EXTRA;
+
+ if (entry->lzplt_entry == resolverStub_addr)
+ {
+ /* This is a lazy PLT entry that includes a resolver call.
+ P2 = [P3];
+ R3 = [P3 + 4];
+ JUMP (P2); */
+ bfd_put_32 (output_bfd,
+ 0xa05b915a,
+ lzplt_code);
+ bfd_put_16 (output_bfd, 0x0052, lzplt_code + 4);
+ }
+ else
+ {
+ /* JUMP.S resolverStub */
+ bfd_put_16 (output_bfd,
+ 0x2000
+ | (((resolverStub_addr - entry->lzplt_entry)
+ / 2) & (((bfd_vma)1 << 12) - 1)),
+ lzplt_code);
+ }
+ }
+
+ return TRUE;
+}
+\f
+/* Relocate an Blackfin ELF section.
+
+ The RELOCATE_SECTION function is called by the new ELF backend linker
+ to handle the relocations for a section.
+
+ The relocs are always passed as Rela structures; if the section
+ actually uses Rel structures, the r_addend field will always be
+ zero.
+
+ This function is responsible for adjusting the section contents as
+ necessary, and (if using Rela relocs and generating a relocatable
+ output file) adjusting the reloc addend as necessary.
+
+ This function does not have to worry about setting the reloc
+ address or the reloc symbol index.
+
+ LOCAL_SYMS is a pointer to the swapped in local symbols.
+
+ LOCAL_SECTIONS is an array giving the section in the input file
+ corresponding to the st_shndx field of each local symbol.
+
+ The global hash table entry for the global symbols can be found
+ via elf_sym_hashes (input_bfd).
+
+ When generating relocatable output, this function must handle
+ STB_LOCAL/STT_SECTION symbols specially. The output symbol is
+ going to be the section symbol corresponding to the output
+ section, which means that the addend must be adjusted
+ accordingly. */
+
+static bfd_boolean
+bfinfdpic_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)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+ unsigned isec_segment, got_segment, plt_segment,
+ check_segment[2];
+ int silence_segment_error = !bfd_link_pic (info);
+
+ symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (input_bfd);
+ relend = relocs + input_section->reloc_count;
+
+ isec_segment = _bfinfdpic_osec_to_segment (output_bfd,
+ input_section->output_section);
+ if (IS_FDPIC (output_bfd) && bfinfdpic_got_section (info))
+ got_segment = _bfinfdpic_osec_to_segment (output_bfd,
+ bfinfdpic_got_section (info)
+ ->output_section);
+ else
+ got_segment = -1;
+ if (IS_FDPIC (output_bfd) && elf_hash_table (info)->dynamic_sections_created)
+ plt_segment = _bfinfdpic_osec_to_segment (output_bfd,
+ bfinfdpic_plt_section (info)
+ ->output_section);
+ else
+ plt_segment = -1;
+
+ for (rel = relocs; rel < relend; rel ++)
+ {
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym *sym;
+ asection *sec;
+ struct elf_link_hash_entry *h;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char * name = NULL;
+ int r_type;
+ asection *osec;
+ struct bfinfdpic_relocs_info *picrel;
+ bfd_vma orig_addend = rel->r_addend;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+
+ if (r_type == R_BFIN_GNU_VTINHERIT
+ || r_type == R_BFIN_GNU_VTENTRY)
+ continue;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ howto = bfin_reloc_type_lookup (input_bfd, r_type);
+ if (howto == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ osec = sec = local_sections [r_symndx];
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+
+ name = bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name);
+ name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
+ }
+ else
+ {
+ bfd_boolean warned, ignored;
+ bfd_boolean unresolved_reloc;
+
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned, ignored);
+ osec = sec;
+ }
+
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ if (bfd_link_relocatable (info))
+ continue;
+
+ if (h != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && !BFINFDPIC_SYM_LOCAL (info, h))
+ {
+ osec = sec = NULL;
+ relocation = 0;
+ }
+
+ switch (r_type)
+ {
+ case R_BFIN_PCREL24:
+ case R_BFIN_PCREL24_JUMP_L:
+ case R_BFIN_BYTE4_DATA:
+ if (! IS_FDPIC (output_bfd))
+ goto non_fdpic;
+ /* Fall through. */
+
+ case R_BFIN_GOT17M4:
+ case R_BFIN_GOTHI:
+ case R_BFIN_GOTLO:
+ case R_BFIN_FUNCDESC_GOT17M4:
+ case R_BFIN_FUNCDESC_GOTHI:
+ case R_BFIN_FUNCDESC_GOTLO:
+ case R_BFIN_GOTOFF17M4:
+ case R_BFIN_GOTOFFHI:
+ case R_BFIN_GOTOFFLO:
+ case R_BFIN_FUNCDESC_GOTOFF17M4:
+ case R_BFIN_FUNCDESC_GOTOFFHI:
+ case R_BFIN_FUNCDESC_GOTOFFLO:
+ case R_BFIN_FUNCDESC:
+ case R_BFIN_FUNCDESC_VALUE:
+ if (h != NULL)
+ picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info
+ (info), input_bfd, h,
+ orig_addend, INSERT);
+ else
+ /* In order to find the entry we created before, we must
+ use the original addend, not the one that may have been
+ modified by _bfd_elf_rela_local_sym(). */
+ picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
+ (info), input_bfd, r_symndx,
+ orig_addend, INSERT);
+ if (! picrel)
+ return FALSE;
+
+ if (!_bfinfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
+ osec, sym,
+ rel->r_addend))
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%B: relocation at `%A+%#Lx' references symbol `%s' with nonzero addend"),
+ input_bfd, input_section, rel->r_offset, name);
+ return FALSE;
+
+ }
+
+ break;
+
+ default:
+ non_fdpic:
+ picrel = NULL;
+ if (h && ! BFINFDPIC_SYM_LOCAL (info, h)
+ && _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset) != (bfd_vma) -1)
+ {
+ info->callbacks->warning
+ (info, _("relocation references symbol not defined in the module"),
+ name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+ break;
+ }
+
+ switch (r_type)
+ {
+ case R_BFIN_PCREL24:
+ case R_BFIN_PCREL24_JUMP_L:
+ check_segment[0] = isec_segment;
+ if (! IS_FDPIC (output_bfd))
+ check_segment[1] = isec_segment;
+ else if (picrel->plt)
+ {
+ relocation = bfinfdpic_plt_section (info)->output_section->vma
+ + bfinfdpic_plt_section (info)->output_offset
+ + picrel->plt_entry;
+ check_segment[1] = plt_segment;
+ }
+ /* We don't want to warn on calls to undefined weak symbols,
+ as calls to them must be protected by non-NULL tests
+ anyway, and unprotected calls would invoke undefined
+ behavior. */
+ else if (picrel->symndx == -1
+ && picrel->d.h->root.type == bfd_link_hash_undefweak)
+ check_segment[1] = check_segment[0];
+ else
+ check_segment[1] = sec
+ ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
+ : (unsigned)-1;
+ break;
+
+ case R_BFIN_GOT17M4:
+ case R_BFIN_GOTHI:
+ case R_BFIN_GOTLO:
+ relocation = picrel->got_entry;
+ check_segment[0] = check_segment[1] = got_segment;
+ break;
+
+ case R_BFIN_FUNCDESC_GOT17M4:
+ case R_BFIN_FUNCDESC_GOTHI:
+ case R_BFIN_FUNCDESC_GOTLO:
+ relocation = picrel->fdgot_entry;
+ check_segment[0] = check_segment[1] = got_segment;
+ break;
+
+ case R_BFIN_GOTOFFHI:
+ case R_BFIN_GOTOFF17M4:
+ case R_BFIN_GOTOFFLO:
+ relocation -= bfinfdpic_got_section (info)->output_section->vma
+ + bfinfdpic_got_section (info)->output_offset
+ + bfinfdpic_got_initial_offset (info);
+ check_segment[0] = got_segment;
+ check_segment[1] = sec
+ ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
+ : (unsigned)-1;
+ break;
+
+ case R_BFIN_FUNCDESC_GOTOFF17M4:
+ case R_BFIN_FUNCDESC_GOTOFFHI:
+ case R_BFIN_FUNCDESC_GOTOFFLO:
+ relocation = picrel->fd_entry;
+ check_segment[0] = check_segment[1] = got_segment;
+ break;
+
+ case R_BFIN_FUNCDESC:
+ {
+ int dynindx;
+ bfd_vma addend = rel->r_addend;
+
+ if (! (h && h->root.type == bfd_link_hash_undefweak
+ && BFINFDPIC_SYM_LOCAL (info, h)))
+ {
+ /* If the symbol is dynamic and there may be dynamic
+ symbol resolution because we are or are linked with a
+ shared library, emit a FUNCDESC relocation such that
+ the dynamic linker will allocate the function
+ descriptor. If the symbol needs a non-local function
+ descriptor but binds locally (e.g., its visibility is
+ protected, emit a dynamic relocation decayed to
+ section+offset. */
+ if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h)
+ && BFINFDPIC_SYM_LOCAL (info, h)
+ && !bfd_link_pde (info))
+ {
+ dynindx = elf_section_data (h->root.u.def.section
+ ->output_section)->dynindx;
+ addend += h->root.u.def.section->output_offset
+ + h->root.u.def.value;
+ }
+ else if (h && ! BFINFDPIC_FUNCDESC_LOCAL (info, h))
+ {
+ if (addend)
+ {
+ info->callbacks->warning
+ (info, _("R_BFIN_FUNCDESC references dynamic symbol with nonzero addend"),
+ name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+ dynindx = h->dynindx;
+ }
+ else
+ {
+ /* Otherwise, we know we have a private function
+ descriptor, so reference it directly. */
+ BFD_ASSERT (picrel->privfd);
+ r_type = R_BFIN_BYTE4_DATA;
+ dynindx = elf_section_data (bfinfdpic_got_section (info)
+ ->output_section)->dynindx;
+ addend = bfinfdpic_got_section (info)->output_offset
+ + bfinfdpic_got_initial_offset (info)
+ + picrel->fd_entry;
+ }
+
+ /* If there is room for dynamic symbol resolution, emit
+ the dynamic relocation. However, if we're linking an
+ executable at a fixed location, we won't have emitted a
+ dynamic symbol entry for the got section, so idx will
+ be zero, which means we can and should compute the
+ address of the private descriptor ourselves. */
+ if (bfd_link_pde (info)
+ && (!h || BFINFDPIC_FUNCDESC_LOCAL (info, h)))
+ {
+ bfd_vma offset;
+
+ addend += bfinfdpic_got_section (info)->output_section->vma;
+ if ((bfd_get_section_flags (output_bfd,
+ input_section->output_section)
+ & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
+ {
+ if (_bfinfdpic_osec_readonly_p (output_bfd,
+ input_section
+ ->output_section))
+ {
+ info->callbacks->warning
+ (info,
+ _("cannot emit fixups in read-only section"),
+ name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+
+ offset = _bfd_elf_section_offset
+ (output_bfd, info,
+ input_section, rel->r_offset);
+
+ if (offset != (bfd_vma)-1)
+ _bfinfdpic_add_rofixup (output_bfd,
+ bfinfdpic_gotfixup_section
+ (info),
+ offset + input_section
+ ->output_section->vma
+ + input_section->output_offset,
+ picrel);
+ }
+ }
+ else if ((bfd_get_section_flags (output_bfd,
+ input_section->output_section)
+ & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
+ {
+ bfd_vma offset;
+
+ if (_bfinfdpic_osec_readonly_p (output_bfd,
+ input_section
+ ->output_section))
+ {
+ info->callbacks->warning
+ (info,
+ _("cannot emit dynamic relocations in read-only section"),
+ name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+ offset = _bfd_elf_section_offset (output_bfd, info,
+ input_section, rel->r_offset);
+
+ if (offset != (bfd_vma)-1)
+ _bfinfdpic_add_dyn_reloc (output_bfd,
+ bfinfdpic_gotrel_section (info),
+ offset + input_section
+ ->output_section->vma
+ + input_section->output_offset,
+ r_type,
+ dynindx, addend, picrel);
+ }
+ else
+ addend += bfinfdpic_got_section (info)->output_section->vma;
+ }
+
+ /* We want the addend in-place because dynamic
+ relocations are REL. Setting relocation to it should
+ arrange for it to be installed. */
+ relocation = addend - rel->r_addend;
+ }
+ check_segment[0] = check_segment[1] = got_segment;
+ break;
+
+ case R_BFIN_BYTE4_DATA:
+ if (! IS_FDPIC (output_bfd))
+ {
+ check_segment[0] = check_segment[1] = -1;
+ break;
+ }
+ /* Fall through. */
+ case R_BFIN_FUNCDESC_VALUE:
+ {
+ int dynindx;
+ bfd_vma addend = rel->r_addend;
+ bfd_vma offset;
+ offset = _bfd_elf_section_offset (output_bfd, info,
+ input_section, rel->r_offset);
+
+ /* If the symbol is dynamic but binds locally, use
+ section+offset. */
+ if (h && ! BFINFDPIC_SYM_LOCAL (info, h))
+ {
+ if (addend && r_type == R_BFIN_FUNCDESC_VALUE)
+ {
+ info->callbacks->warning
+ (info, _("R_BFIN_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
+ name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+ dynindx = h->dynindx;
+ }
+ else
+ {
+ if (h)
+ addend += h->root.u.def.value;
+ else
+ addend += sym->st_value;
+ if (osec)
+ addend += osec->output_offset;
+ if (osec && osec->output_section
+ && ! bfd_is_abs_section (osec->output_section)
+ && ! bfd_is_und_section (osec->output_section))
+ dynindx = elf_section_data (osec->output_section)->dynindx;
+ else
+ dynindx = 0;
+ }
+
+ /* If we're linking an executable at a fixed address, we
+ can omit the dynamic relocation as long as the symbol
+ is defined in the current link unit (which is implied
+ by its output section not being NULL). */
+ if (bfd_link_pde (info)
+ && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
+ {
+ if (osec)
+ addend += osec->output_section->vma;
+ if (IS_FDPIC (input_bfd)
+ && (bfd_get_section_flags (output_bfd,
+ input_section->output_section)
+ & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
+ {
+ if (_bfinfdpic_osec_readonly_p (output_bfd,
+ input_section
+ ->output_section))
+ {
+ info->callbacks->warning
+ (info,
+ _("cannot emit fixups in read-only section"),
+ name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+ if (!h || h->root.type != bfd_link_hash_undefweak)
+ {
+ if (offset != (bfd_vma)-1)
+ {
+ _bfinfdpic_add_rofixup (output_bfd,
+ bfinfdpic_gotfixup_section
+ (info),
+ offset + input_section
+ ->output_section->vma
+ + input_section->output_offset,
+ picrel);
+
+ if (r_type == R_BFIN_FUNCDESC_VALUE)
+ _bfinfdpic_add_rofixup
+ (output_bfd,
+ bfinfdpic_gotfixup_section (info),
+ offset + input_section->output_section->vma
+ + input_section->output_offset + 4, picrel);
+ }
+ }
+ }
+ }
+ else
+ {
+ if ((bfd_get_section_flags (output_bfd,
+ input_section->output_section)
+ & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
+ {
+ if (_bfinfdpic_osec_readonly_p (output_bfd,
+ input_section
+ ->output_section))
+ {
+ info->callbacks->warning
+ (info,
+ _("cannot emit dynamic relocations in read-only section"),
+ name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+
+ if (offset != (bfd_vma)-1)
+ _bfinfdpic_add_dyn_reloc (output_bfd,
+ bfinfdpic_gotrel_section (info),
+ offset
+ + input_section->output_section->vma
+ + input_section->output_offset,
+ r_type, dynindx, addend, picrel);
+ }
+ else if (osec)
+ addend += osec->output_section->vma;
+ /* We want the addend in-place because dynamic
+ relocations are REL. Setting relocation to it
+ should arrange for it to be installed. */
+ relocation = addend - rel->r_addend;
+ }
+
+ if (r_type == R_BFIN_FUNCDESC_VALUE)
+ {
+ /* If we've omitted the dynamic relocation, just emit
+ the fixed addresses of the symbol and of the local
+ GOT base offset. */
+ if (bfd_link_pde (info)
+ && (!h || BFINFDPIC_SYM_LOCAL (info, h)))
+ bfd_put_32 (output_bfd,
+ bfinfdpic_got_section (info)->output_section->vma
+ + bfinfdpic_got_section (info)->output_offset
+ + bfinfdpic_got_initial_offset (info),
+ contents + rel->r_offset + 4);
+ else
+ /* A function descriptor used for lazy or local
+ resolving is initialized such that its high word
+ contains the output section index in which the
+ PLT entries are located, and the low word
+ contains the offset of the lazy PLT entry entry
+ point into that section. */
+ bfd_put_32 (output_bfd,
+ h && ! BFINFDPIC_SYM_LOCAL (info, h)
+ ? 0
+ : _bfinfdpic_osec_to_segment (output_bfd,
+ sec
+ ->output_section),
+ contents + rel->r_offset + 4);
+ }
+ }
+ check_segment[0] = check_segment[1] = got_segment;
+ break;
+
+ default:
+ check_segment[0] = isec_segment;
+ check_segment[1] = sec
+ ? _bfinfdpic_osec_to_segment (output_bfd, sec->output_section)
+ : (unsigned)-1;
+ break;
+ }
+
+ if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
+ {
+#if 1 /* If you take this out, remove the #error from fdpic-static-6.d
+ in the ld testsuite. */
+ /* This helps catch problems in GCC while we can't do more
+ than static linking. The idea is to test whether the
+ input file basename is crt0.o only once. */
+ if (silence_segment_error == 1)
+ silence_segment_error =
+ (strlen (input_bfd->filename) == 6
+ && filename_cmp (input_bfd->filename, "crt0.o") == 0)
+ || (strlen (input_bfd->filename) > 6
+ && filename_cmp (input_bfd->filename
+ + strlen (input_bfd->filename) - 7,
+ "/crt0.o") == 0)
+ ? -1 : 0;
+#endif
+ if (!silence_segment_error
+ /* We don't want duplicate errors for undefined
+ symbols. */
+ && !(picrel && picrel->symndx == -1
+ && picrel->d.h->root.type == bfd_link_hash_undefined))
+ info->callbacks->warning
+ (info,
+ bfd_link_pic (info)
+ ? _("relocations between different segments are not supported")
+ : _("warning: relocation references a different segment"),
+ name, input_bfd, input_section, rel->r_offset);
+ if (!silence_segment_error && bfd_link_pic (info))
+ return FALSE;
+ elf_elfheader (output_bfd)->e_flags |= EF_BFIN_PIC;
+ }
+
+ switch (r_type)
+ {
+ case R_BFIN_GOTOFFHI:
+ /* We need the addend to be applied before we shift the
+ value right. */
+ relocation += rel->r_addend;
+ /* Fall through. */
+ case R_BFIN_GOTHI:
+ case R_BFIN_FUNCDESC_GOTHI:
+ case R_BFIN_FUNCDESC_GOTOFFHI:
+ relocation >>= 16;
+ /* Fall through. */
+
+ case R_BFIN_GOTLO:
+ case R_BFIN_FUNCDESC_GOTLO:
+ case R_BFIN_GOTOFFLO:
+ case R_BFIN_FUNCDESC_GOTOFFLO:
+ relocation &= 0xffff;
+ break;
+
+ default:
+ break;
+ }
+
+ switch (r_type)
+ {
+ case R_BFIN_PCREL24:
+ case R_BFIN_PCREL24_JUMP_L:
+ if (! IS_FDPIC (output_bfd) || ! picrel->plt)
+ break;
+ /* Fall through. */
+
+ /* When referencing a GOT entry, a function descriptor or a
+ PLT, we don't want the addend to apply to the reference,
+ but rather to the referenced symbol. The actual entry
+ will have already been created taking the addend into
+ account, so cancel it out here. */
+ case R_BFIN_GOT17M4:
+ case R_BFIN_GOTHI:
+ case R_BFIN_GOTLO:
+ case R_BFIN_FUNCDESC_GOT17M4:
+ case R_BFIN_FUNCDESC_GOTHI:
+ case R_BFIN_FUNCDESC_GOTLO:
+ case R_BFIN_FUNCDESC_GOTOFF17M4:
+ case R_BFIN_FUNCDESC_GOTOFFHI:
+ case R_BFIN_FUNCDESC_GOTOFFLO:
+ /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF17M4
+ here, since we do want to apply the addend to the others.
+ Note that we've applied the addend to GOTOFFHI before we
+ shifted it right. */
+ case R_BFIN_GOTOFFHI:
+ relocation -= rel->r_addend;
+ break;
+
+ default:
+ break;
+ }
+
+ r = bfin_final_link_relocate (rel, howto, input_bfd, input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend);
+
+ if (r != bfd_reloc_ok)
+ {
+ const char * msg = (const char *) NULL;
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ (*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
+ break;
+
+ case bfd_reloc_undefined:
+ (*info->callbacks->undefined_symbol)
+ (info, name, input_bfd, input_section, rel->r_offset, TRUE);
+ break;
+
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ break;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ break;
+
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous relocation");
+ break;
+
+ default:
+ msg = _("internal error: unknown error");
+ break;
+ }
+
+ if (msg)
+ (*info->callbacks->warning) (info, msg, name, input_bfd,
+ input_section, rel->r_offset);
+ }
+ }
+
+ return TRUE;
+}
+
+/* We need dynamic symbols for every section, since segments can
+ relocate independently. */
+static bfd_boolean
+_bfinfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ asection *p)
+{
+ switch (elf_section_data (p)->this_hdr.sh_type)
+ {
+ case SHT_PROGBITS:
+ case SHT_NOBITS:
+ /* If sh_type is yet undecided, assume it could be
+ SHT_PROGBITS/SHT_NOBITS. */
+ case SHT_NULL:
+ return FALSE;
+
+ /* There shouldn't be section relative relocations
+ against any other section. */
+ default:
+ return TRUE;
+ }
+}
+
+/* Create a .got section, as well as its additional info field. This
+ is almost entirely copied from
+ elflink.c:_bfd_elf_create_got_section(). */
+
+static bfd_boolean
+_bfin_create_got_section (bfd *abfd, struct bfd_link_info *info)
+{
+ flagword flags, pltflags;
+ asection *s;
+ struct elf_link_hash_entry *h;
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ int ptralign;
+
+ /* This function may be called more than once. */
+ s = elf_hash_table (info)->sgot;
+ if (s != NULL)
+ return TRUE;
+
+ /* Machine specific: although pointers are 32-bits wide, we want the
+ GOT to be aligned to a 64-bit boundary, such that function
+ descriptors in it can be accessed with 64-bit loads and
+ stores. */
+ ptralign = 3;
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
+ pltflags = flags;
+
+ s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
+ elf_hash_table (info)->sgot = s;
+ if (s == NULL
+ || !bfd_set_section_alignment (abfd, s, ptralign))
+ return FALSE;
+
+ if (bed->want_got_sym)
+ {
+ /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
+ (or .got.plt) section. We don't do this in the linker script
+ because we don't want to define the symbol if we are not creating
+ a global offset table. */
+ h = _bfd_elf_define_linkage_sym (abfd, info, s, "__GLOBAL_OFFSET_TABLE_");
+ elf_hash_table (info)->hgot = h;
+ if (h == NULL)
+ return FALSE;
+
+ /* Machine-specific: we want the symbol for executables as
+ well. */
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ /* The first bit of the global offset table is the header. */
+ s->size += bed->got_header_size;
+
+ /* This is the machine-specific part. Create and initialize section
+ data for the got. */
+ if (IS_FDPIC (abfd))
+ {
+ bfinfdpic_relocs_info (info) = htab_try_create (1,
+ bfinfdpic_relocs_info_hash,
+ bfinfdpic_relocs_info_eq,
+ (htab_del) NULL);
+ if (! bfinfdpic_relocs_info (info))
+ return FALSE;
+
+ s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
+ (flags | SEC_READONLY));
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ bfinfdpic_gotrel_section (info) = s;
+
+ /* Machine-specific. */
+ s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
+ (flags | SEC_READONLY));
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, 2))
+ return FALSE;
+
+ bfinfdpic_gotfixup_section (info) = s;
+ }
+
+ pltflags |= SEC_CODE;
+ if (bed->plt_not_loaded)
+ pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
+ if (bed->plt_readonly)
+ pltflags |= SEC_READONLY;
+
+ s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
+ return FALSE;
+ /* Blackfin-specific: remember it. */
+ bfinfdpic_plt_section (info) = s;
+
+ if (bed->want_plt_sym)
+ {
+ /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
+ .plt section. */
+ struct bfd_link_hash_entry *bh = NULL;
+
+ if (! (_bfd_generic_link_add_one_symbol
+ (info, abfd, "__PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
+ FALSE, get_elf_backend_data (abfd)->collect, &bh)))
+ return FALSE;
+ h = (struct elf_link_hash_entry *) bh;
+ h->def_regular = 1;
+ h->type = STT_OBJECT;
+
+ if (! bfd_link_executable (info)
+ && ! bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ /* Blackfin-specific: we want rel relocations for the plt. */
+ s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
+ flags | SEC_READONLY);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
+ return FALSE;
+ /* Blackfin-specific: remember it. */
+ bfinfdpic_pltrel_section (info) = s;
+
+ return TRUE;
+}
+
+/* Make sure the got and plt sections exist, and that our pointers in
+ the link hash table point to them. */
+
+static bfd_boolean
+elf32_bfinfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
+{
+ /* This is mostly copied from
+ elflink.c:_bfd_elf_create_dynamic_sections(). */
+ flagword flags;
+ asection *s;
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
+
+ /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
+ .rel[a].bss sections. */
+
+ /* Blackfin-specific: we want to create the GOT in the Blackfin way. */
+ if (! _bfin_create_got_section (abfd, info))
+ return FALSE;
+
+ /* Blackfin-specific: make sure we created everything we wanted. */
+ BFD_ASSERT (bfinfdpic_got_section (info) && bfinfdpic_gotrel_section (info)
+ /* && bfinfdpic_gotfixup_section (info) */
+ && bfinfdpic_plt_section (info)
+ && bfinfdpic_pltrel_section (info));
+
+ if (bed->want_dynbss)
+ {
+ /* The .dynbss section is a place to put symbols which are defined
+ by dynamic objects, are referenced by regular objects, and are
+ not functions. We must allocate space for them in the process
+ image and use a R_*_COPY reloc to tell the dynamic linker to
+ initialize them at run time. The linker script puts the .dynbss
+ section into the .bss section of the final image. */
+ s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
+ SEC_ALLOC | SEC_LINKER_CREATED);
+ if (s == NULL)
+ return FALSE;
+
+ /* The .rel[a].bss section holds copy relocs. This section is not
+ normally needed. We need to create it here, though, so that the
+ linker will map it to an output section. We can't just create it
+ only if we need it, because we will not know whether we need it
+ until we have seen all the input files, and the first time the
+ main linker code calls BFD after examining all the input files
+ (size_dynamic_sections) the input sections have already been
+ mapped to the output sections. If the section turns out not to
+ be needed, we can discard it later. We will never need this
+ section when generating a shared object, since they do not use
+ copy relocs. */
+ if (! bfd_link_pic (info))
+ {
+ s = bfd_make_section_anyway_with_flags (abfd,
+ ".rela.bss",
+ flags | SEC_READONLY);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+/* Compute the total GOT size required by each symbol in each range.
+ Symbols may require up to 4 words in the GOT: an entry pointing to
+ the symbol, an entry pointing to its function descriptor, and a
+ private function descriptors taking two words. */
+
+static void
+_bfinfdpic_count_nontls_entries (struct bfinfdpic_relocs_info *entry,
+ struct _bfinfdpic_dynamic_got_info *dinfo)
+{
+ /* Allocate space for a GOT entry pointing to the symbol. */
+ if (entry->got17m4)
+ dinfo->got17m4 += 4;
+ else if (entry->gothilo)
+ dinfo->gothilo += 4;
+ else
+ entry->relocs32--;
+ entry->relocs32++;
+
+ /* Allocate space for a GOT entry pointing to the function
+ descriptor. */
+ if (entry->fdgot17m4)
+ dinfo->got17m4 += 4;
+ else if (entry->fdgothilo)
+ dinfo->gothilo += 4;
+ else
+ entry->relocsfd--;
+ entry->relocsfd++;
+
+ /* Decide whether we need a PLT entry, a function descriptor in the
+ GOT, and a lazy PLT entry for this symbol. */
+ entry->plt = entry->call
+ && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
+ && elf_hash_table (dinfo->info)->dynamic_sections_created;
+ entry->privfd = entry->plt
+ || entry->fdgoff17m4 || entry->fdgoffhilo
+ || ((entry->fd || entry->fdgot17m4 || entry->fdgothilo)
+ && (entry->symndx != -1
+ || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
+ entry->lazyplt = entry->privfd
+ && entry->symndx == -1 && ! BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
+ && ! (dinfo->info->flags & DF_BIND_NOW)
+ && elf_hash_table (dinfo->info)->dynamic_sections_created;
+
+ /* Allocate space for a function descriptor. */
+ if (entry->fdgoff17m4)
+ dinfo->fd17m4 += 8;
+ else if (entry->privfd && entry->plt)
+ dinfo->fdplt += 8;
+ else if (entry->privfd)
+ dinfo->fdhilo += 8;
+ else
+ entry->relocsfdv--;
+ entry->relocsfdv++;
+
+ if (entry->lazyplt)
+ dinfo->lzplt += LZPLT_NORMAL_SIZE;
+}
+
+/* Compute the number of dynamic relocations and fixups that a symbol
+ requires, and add (or subtract) from the grand and per-symbol
+ totals. */
+
+static void
+_bfinfdpic_count_relocs_fixups (struct bfinfdpic_relocs_info *entry,
+ struct _bfinfdpic_dynamic_got_info *dinfo,
+ bfd_boolean subtract)
+{
+ bfd_vma relocs = 0, fixups = 0;
+
+ if (!bfd_link_pde (dinfo->info))
+ relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv;
+ else
+ {
+ if (entry->symndx != -1 || BFINFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
+ {
+ if (entry->symndx != -1
+ || entry->d.h->root.type != bfd_link_hash_undefweak)
+ fixups += entry->relocs32 + 2 * entry->relocsfdv;
+ }
+ else
+ relocs += entry->relocs32 + entry->relocsfdv;
+
+ if (entry->symndx != -1
+ || BFINFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
+ {
+ if (entry->symndx != -1
+ || entry->d.h->root.type != bfd_link_hash_undefweak)
+ fixups += entry->relocsfd;
+ }
+ else
+ relocs += entry->relocsfd;
+ }
+
+ if (subtract)
+ {
+ relocs = - relocs;
+ fixups = - fixups;
+ }
+
+ entry->dynrelocs += relocs;
+ entry->fixups += fixups;
+ dinfo->relocs += relocs;
+ dinfo->fixups += fixups;
+}
+
+/* Compute the total GOT and PLT size required by each symbol in each range. *
+ Symbols may require up to 4 words in the GOT: an entry pointing to
+ the symbol, an entry pointing to its function descriptor, and a
+ private function descriptors taking two words. */
+
+static int
+_bfinfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
+{
+ struct bfinfdpic_relocs_info *entry = *entryp;
+ struct _bfinfdpic_dynamic_got_info *dinfo = dinfo_;
+
+ _bfinfdpic_count_nontls_entries (entry, dinfo);
+
+ _bfinfdpic_count_relocs_fixups (entry, dinfo, FALSE);
+
+ return 1;
+}
+
+/* This structure is used to assign offsets to got entries, function
+ descriptors, plt entries and lazy plt entries. */
+
+struct _bfinfdpic_dynamic_got_plt_info
+{
+ /* Summary information collected with _bfinfdpic_count_got_plt_entries. */
+ struct _bfinfdpic_dynamic_got_info g;
+
+ /* For each addressable range, we record a MAX (positive) and MIN
+ (negative) value. CUR is used to assign got entries, and it's
+ incremented from an initial positive value to MAX, then from MIN
+ to FDCUR (unless FDCUR wraps around first). FDCUR is used to
+ assign function descriptors, and it's decreased from an initial
+ non-positive value to MIN, then from MAX down to CUR (unless CUR
+ wraps around first). All of MIN, MAX, CUR and FDCUR always point
+ to even words. ODD, if non-zero, indicates an odd word to be
+ used for the next got entry, otherwise CUR is used and
+ incremented by a pair of words, wrapping around when it reaches
+ MAX. FDCUR is decremented (and wrapped) before the next function
+ descriptor is chosen. FDPLT indicates the number of remaining
+ slots that can be used for function descriptors used only by PLT
+ entries. */
+ struct _bfinfdpic_dynamic_got_alloc_data
+ {
+ bfd_signed_vma max, cur, odd, fdcur, min;
+ bfd_vma fdplt;
+ } got17m4, gothilo;
+};
+
+/* Determine the positive and negative ranges to be used by each
+ offset range in the GOT. FDCUR and CUR, that must be aligned to a
+ double-word boundary, are the minimum (negative) and maximum
+ (positive) GOT offsets already used by previous ranges, except for
+ an ODD entry that may have been left behind. GOT and FD indicate
+ the size of GOT entries and function descriptors that must be
+ placed within the range from -WRAP to WRAP. If there's room left,
+ up to FDPLT bytes should be reserved for additional function
+ descriptors. */
+
+inline static bfd_signed_vma
+_bfinfdpic_compute_got_alloc_data (struct _bfinfdpic_dynamic_got_alloc_data *gad,
+ bfd_signed_vma fdcur,
+ bfd_signed_vma odd,
+ bfd_signed_vma cur,
+ bfd_vma got,
+ bfd_vma fd,
+ bfd_vma fdplt,
+ bfd_vma wrap)
+{
+ bfd_signed_vma wrapmin = -wrap;
+
+ /* Start at the given initial points. */
+ gad->fdcur = fdcur;
+ gad->cur = cur;
+
+ /* If we had an incoming odd word and we have any got entries that
+ are going to use it, consume it, otherwise leave gad->odd at
+ zero. We might force gad->odd to zero and return the incoming
+ odd such that it is used by the next range, but then GOT entries
+ might appear to be out of order and we wouldn't be able to
+ shorten the GOT by one word if it turns out to end with an
+ unpaired GOT entry. */
+ if (odd && got)
+ {
+ gad->odd = odd;
+ got -= 4;
+ odd = 0;
+ }
+ else
+ gad->odd = 0;
+
+ /* If we're left with an unpaired GOT entry, compute its location
+ such that we can return it. Otherwise, if got doesn't require an
+ odd number of words here, either odd was already zero in the
+ block above, or it was set to zero because got was non-zero, or
+ got was already zero. In the latter case, we want the value of
+ odd to carry over to the return statement, so we don't want to
+ reset odd unless the condition below is true. */
+ if (got & 4)
+ {
+ odd = cur + got;
+ got += 4;
+ }
+
+ /* Compute the tentative boundaries of this range. */
+ gad->max = cur + got;
+ gad->min = fdcur - fd;
+ gad->fdplt = 0;
+
+ /* If function descriptors took too much space, wrap some of them
+ around. */
+ if (gad->min < wrapmin)
+ {
+ gad->max += wrapmin - gad->min;
+ gad->min = wrapmin;
+ }
+ /* If there is space left and we have function descriptors
+ referenced in PLT entries that could take advantage of shorter
+ offsets, place them here. */
+ else if (fdplt && gad->min > wrapmin)
+ {
+ bfd_vma fds;
+ if ((bfd_vma) (gad->min - wrapmin) < fdplt)
+ fds = gad->min - wrapmin;
+ else
+ fds = fdplt;
+
+ fdplt -= fds;
+ gad->min -= fds;
+ gad->fdplt += fds;
+ }
+
+ /* If GOT entries took too much space, wrap some of them around.
+ This may well cause gad->min to become lower than wrapmin. This
+ will cause a relocation overflow later on, so we don't have to
+ report it here . */
+ if ((bfd_vma) gad->max > wrap)
+ {
+ gad->min -= gad->max - wrap;
+ gad->max = wrap;
+ }
+ /* If there is more space left, try to place some more function
+ descriptors for PLT entries. */
+ else if (fdplt && (bfd_vma) gad->max < wrap)
+ {
+ bfd_vma fds;
+ if ((bfd_vma) (wrap - gad->max) < fdplt)
+ fds = wrap - gad->max;
+ else
+ fds = fdplt;
+
+ fdplt -= fds;
+ gad->max += fds;
+ gad->fdplt += fds;
+ }
+
+ /* If odd was initially computed as an offset past the wrap point,
+ wrap it around. */
+ if (odd > gad->max)
+ odd = gad->min + odd - gad->max;
+
+ /* _bfinfdpic_get_got_entry() below will always wrap gad->cur if needed
+ before returning, so do it here too. This guarantees that,
+ should cur and fdcur meet at the wrap point, they'll both be
+ equal to min. */
+ if (gad->cur == gad->max)
+ gad->cur = gad->min;
+
+ return odd;
+}
+
+/* Compute the location of the next GOT entry, given the allocation
+ data for a range. */
+
+inline static bfd_signed_vma
+_bfinfdpic_get_got_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
+{
+ bfd_signed_vma ret;
+
+ if (gad->odd)
+ {
+ /* If there was an odd word left behind, use it. */
+ ret = gad->odd;
+ gad->odd = 0;
+ }
+ else
+ {
+ /* Otherwise, use the word pointed to by cur, reserve the next
+ as an odd word, and skip to the next pair of words, possibly
+ wrapping around. */
+ ret = gad->cur;
+ gad->odd = gad->cur + 4;
+ gad->cur += 8;
+ if (gad->cur == gad->max)
+ gad->cur = gad->min;
+ }
+
+ return ret;
+}
+
+/* Compute the location of the next function descriptor entry in the
+ GOT, given the allocation data for a range. */
+
+inline static bfd_signed_vma
+_bfinfdpic_get_fd_entry (struct _bfinfdpic_dynamic_got_alloc_data *gad)
+{
+ /* If we're at the bottom, wrap around, and only then allocate the
+ next pair of words. */
+ if (gad->fdcur == gad->min)
+ gad->fdcur = gad->max;
+ return gad->fdcur -= 8;
+}
+
+/* Assign GOT offsets for every GOT entry and function descriptor.
+ Doing everything in a single pass is tricky. */
+
+static int
+_bfinfdpic_assign_got_entries (void **entryp, void *info_)
+{
+ struct bfinfdpic_relocs_info *entry = *entryp;
+ struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
+
+ if (entry->got17m4)
+ entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
+ else if (entry->gothilo)
+ entry->got_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
+
+ if (entry->fdgot17m4)
+ entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->got17m4);
+ else if (entry->fdgothilo)
+ entry->fdgot_entry = _bfinfdpic_get_got_entry (&dinfo->gothilo);
+
+ if (entry->fdgoff17m4)
+ entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
+ else if (entry->plt && dinfo->got17m4.fdplt)
+ {
+ dinfo->got17m4.fdplt -= 8;
+ entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
+ }
+ else if (entry->plt)
+ {
+ dinfo->gothilo.fdplt -= 8;
+ entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
+ }
+ else if (entry->privfd)
+ entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
+
+ return 1;
+}
+
+/* Assign GOT offsets to private function descriptors used by PLT
+ entries (or referenced by 32-bit offsets), as well as PLT entries
+ and lazy PLT entries. */
+
+static int
+_bfinfdpic_assign_plt_entries (void **entryp, void *info_)
+{
+ struct bfinfdpic_relocs_info *entry = *entryp;
+ struct _bfinfdpic_dynamic_got_plt_info *dinfo = info_;
+
+ /* If this symbol requires a local function descriptor, allocate
+ one. */
+ if (entry->privfd && entry->fd_entry == 0)
+ {
+ if (dinfo->got17m4.fdplt)
+ {
+ entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->got17m4);
+ dinfo->got17m4.fdplt -= 8;
+ }
+ else
+ {
+ BFD_ASSERT (dinfo->gothilo.fdplt);
+ entry->fd_entry = _bfinfdpic_get_fd_entry (&dinfo->gothilo);
+ dinfo->gothilo.fdplt -= 8;
+ }
+ }
+
+ if (entry->plt)
+ {
+ int size;
+
+ /* We use the section's raw size to mark the location of the
+ next PLT entry. */
+ entry->plt_entry = bfinfdpic_plt_section (dinfo->g.info)->size;
+
+ /* Figure out the length of this PLT entry based on the
+ addressing mode we need to reach the function descriptor. */
+ BFD_ASSERT (entry->fd_entry);
+ if (entry->fd_entry >= -(1 << (18 - 1))
+ && entry->fd_entry + 4 < (1 << (18 - 1)))
+ size = 10;
+ else
+ size = 16;
+
+ bfinfdpic_plt_section (dinfo->g.info)->size += size;
+ }
+
+ if (entry->lazyplt)
+ {
+ entry->lzplt_entry = dinfo->g.lzplt;
+ dinfo->g.lzplt += LZPLT_NORMAL_SIZE;
+ /* If this entry is the one that gets the resolver stub, account
+ for the additional instruction. */
+ if (entry->lzplt_entry % BFINFDPIC_LZPLT_BLOCK_SIZE
+ == BFINFDPIC_LZPLT_RESOLV_LOC)
+ dinfo->g.lzplt += LZPLT_RESOLVER_EXTRA;
+ }
+
+ return 1;
+}
+
+/* Cancel out any effects of calling _bfinfdpic_assign_got_entries and
+ _bfinfdpic_assign_plt_entries. */
+
+static int
+_bfinfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
+{
+ struct bfinfdpic_relocs_info *entry = *entryp;
+
+ entry->got_entry = 0;
+ entry->fdgot_entry = 0;
+ entry->fd_entry = 0;
+ entry->plt_entry = (bfd_vma)-1;
+ entry->lzplt_entry = (bfd_vma)-1;
+
+ return 1;
+}
+
+/* Follow indirect and warning hash entries so that each got entry
+ points to the final symbol definition. P must point to a pointer
+ to the hash table we're traversing. Since this traversal may
+ modify the hash table, we set this pointer to NULL to indicate
+ we've made a potentially-destructive change to the hash table, so
+ the traversal must be restarted. */
+static int
+_bfinfdpic_resolve_final_relocs_info (void **entryp, void *p)
+{
+ struct bfinfdpic_relocs_info *entry = *entryp;
+ htab_t *htab = p;
+
+ if (entry->symndx == -1)
+ {
+ struct elf_link_hash_entry *h = entry->d.h;
+ struct bfinfdpic_relocs_info *oentry;
+
+ 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;
+
+ if (entry->d.h == h)
+ return 1;
+
+ oentry = bfinfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
+ NO_INSERT);
+
+ if (oentry)
+ {
+ /* Merge the two entries. */
+ bfinfdpic_pic_merge_early_relocs_info (oentry, entry);
+ htab_clear_slot (*htab, entryp);
+ return 1;
+ }
+
+ entry->d.h = h;
+
+ /* If we can't find this entry with the new bfd hash, re-insert
+ it, and get the traversal restarted. */
+ if (! htab_find (*htab, entry))
+ {
+ htab_clear_slot (*htab, entryp);
+ entryp = htab_find_slot (*htab, entry, INSERT);
+ if (! *entryp)
+ *entryp = entry;
+ /* Abort the traversal, since the whole table may have
+ moved, and leave it up to the parent to restart the
+ process. */
+ *(htab_t *)p = NULL;
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+/* Compute the total size of the GOT, the PLT, the dynamic relocations
+ section and the rofixup section. Assign locations for GOT and PLT
+ entries. */
+
+static bfd_boolean
+_bfinfdpic_size_got_plt (bfd *output_bfd,
+ struct _bfinfdpic_dynamic_got_plt_info *gpinfop)
+{
+ bfd_signed_vma odd;
+ bfd_vma limit;
+ struct bfd_link_info *info = gpinfop->g.info;
+ bfd *dynobj = elf_hash_table (info)->dynobj;
+
+ memcpy (bfinfdpic_dynamic_got_plt_info (info), &gpinfop->g,
+ sizeof (gpinfop->g));
+
+ odd = 12;
+ /* Compute the total size taken by entries in the 18-bit range,
+ to tell how many PLT function descriptors we can bring into it
+ without causing it to overflow. */
+ limit = odd + gpinfop->g.got17m4 + gpinfop->g.fd17m4;
+ if (limit < (bfd_vma)1 << 18)
+ limit = ((bfd_vma)1 << 18) - limit;
+ else
+ limit = 0;
+ if (gpinfop->g.fdplt < limit)
+ limit = gpinfop->g.fdplt;
+
+ /* Determine the ranges of GOT offsets that we can use for each
+ range of addressing modes. */
+ odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->got17m4,
+ 0,
+ odd,
+ 16,
+ gpinfop->g.got17m4,
+ gpinfop->g.fd17m4,
+ limit,
+ (bfd_vma)1 << (18-1));
+ odd = _bfinfdpic_compute_got_alloc_data (&gpinfop->gothilo,
+ gpinfop->got17m4.min,
+ odd,
+ gpinfop->got17m4.max,
+ gpinfop->g.gothilo,
+ gpinfop->g.fdhilo,
+ gpinfop->g.fdplt - gpinfop->got17m4.fdplt,
+ (bfd_vma)1 << (32-1));
+
+ /* Now assign (most) GOT offsets. */
+ htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_got_entries,
+ gpinfop);
+
+ bfinfdpic_got_section (info)->size = gpinfop->gothilo.max
+ - gpinfop->gothilo.min
+ /* If an odd word is the last word of the GOT, we don't need this
+ word to be part of the GOT. */
+ - (odd + 4 == gpinfop->gothilo.max ? 4 : 0);
+ if (bfinfdpic_got_section (info)->size == 0)
+ bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
+ else if (bfinfdpic_got_section (info)->size == 12
+ && ! elf_hash_table (info)->dynamic_sections_created)
+ {
+ bfinfdpic_got_section (info)->flags |= SEC_EXCLUDE;
+ bfinfdpic_got_section (info)->size = 0;
+ }
+ else
+ {
+ bfinfdpic_got_section (info)->contents =
+ (bfd_byte *) bfd_zalloc (dynobj,
+ bfinfdpic_got_section (info)->size);
+ if (bfinfdpic_got_section (info)->contents == NULL)
+ return FALSE;
+ }
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ /* Subtract the number of lzplt entries, since those will generate
+ relocations in the pltrel section. */
+ bfinfdpic_gotrel_section (info)->size =
+ (gpinfop->g.relocs - gpinfop->g.lzplt / LZPLT_NORMAL_SIZE)
+ * get_elf_backend_data (output_bfd)->s->sizeof_rel;
+ else
+ BFD_ASSERT (gpinfop->g.relocs == 0);
+ if (bfinfdpic_gotrel_section (info)->size == 0)
+ bfinfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
+ else
+ {
+ bfinfdpic_gotrel_section (info)->contents =
+ (bfd_byte *) bfd_zalloc (dynobj,
+ bfinfdpic_gotrel_section (info)->size);
+ if (bfinfdpic_gotrel_section (info)->contents == NULL)
+ return FALSE;
+ }
+
+ bfinfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
+ if (bfinfdpic_gotfixup_section (info)->size == 0)
+ bfinfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
+ else
+ {
+ bfinfdpic_gotfixup_section (info)->contents =
+ (bfd_byte *) bfd_zalloc (dynobj,
+ bfinfdpic_gotfixup_section (info)->size);
+ if (bfinfdpic_gotfixup_section (info)->contents == NULL)
+ return FALSE;
+ }
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ bfinfdpic_pltrel_section (info)->size =
+ gpinfop->g.lzplt / LZPLT_NORMAL_SIZE * get_elf_backend_data (output_bfd)->s->sizeof_rel;
+ if (bfinfdpic_pltrel_section (info)->size == 0)
+ bfinfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
+ else
+ {
+ bfinfdpic_pltrel_section (info)->contents =
+ (bfd_byte *) bfd_zalloc (dynobj,
+ bfinfdpic_pltrel_section (info)->size);
+ if (bfinfdpic_pltrel_section (info)->contents == NULL)
+ return FALSE;
+ }
+
+ /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
+ such that there's room for the additional instruction needed to
+ call the resolver. Since _bfinfdpic_assign_got_entries didn't
+ account for them, our block size is 4 bytes smaller than the real
+ block size. */
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ bfinfdpic_plt_section (info)->size = gpinfop->g.lzplt
+ + ((gpinfop->g.lzplt + (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) - LZPLT_NORMAL_SIZE)
+ / (BFINFDPIC_LZPLT_BLOCK_SIZE - 4) * LZPLT_RESOLVER_EXTRA);
+ }
+
+ /* Reset it, such that _bfinfdpic_assign_plt_entries() can use it to
+ actually assign lazy PLT entries addresses. */
+ gpinfop->g.lzplt = 0;
+
+ /* Save information that we're going to need to generate GOT and PLT
+ entries. */
+ bfinfdpic_got_initial_offset (info) = -gpinfop->gothilo.min;
+
+ if (get_elf_backend_data (output_bfd)->want_got_sym)
+ elf_hash_table (info)->hgot->root.u.def.value
+ = bfinfdpic_got_initial_offset (info);
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ bfinfdpic_plt_initial_offset (info) =
+ bfinfdpic_plt_section (info)->size;
+
+ htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_assign_plt_entries,
+ gpinfop);
+
+ /* Allocate the PLT section contents only after
+ _bfinfdpic_assign_plt_entries has a chance to add the size of the
+ non-lazy PLT entries. */
+ if (bfinfdpic_plt_section (info)->size == 0)
+ bfinfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
+ else
+ {
+ bfinfdpic_plt_section (info)->contents =
+ (bfd_byte *) bfd_zalloc (dynobj,
+ bfinfdpic_plt_section (info)->size);
+ if (bfinfdpic_plt_section (info)->contents == NULL)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* Set the sizes of the dynamic sections. */
+
+static bfd_boolean
+elf32_bfinfdpic_size_dynamic_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
+{
+ struct elf_link_hash_table *htab;
+ bfd *dynobj;
+ asection *s;
+ struct _bfinfdpic_dynamic_got_plt_info gpinfo;
+
+ htab = elf_hash_table (info);
+ dynobj = htab->dynobj;
+ BFD_ASSERT (dynobj != NULL);
+
+ if (htab->dynamic_sections_created)
+ {
+ /* Set the contents of the .interp section to the interpreter. */
+ if (bfd_link_executable (info) && !info->nointerp)
+ {
+ s = bfd_get_linker_section (dynobj, ".interp");
+ BFD_ASSERT (s != NULL);
+ s->size = sizeof ELF_DYNAMIC_INTERPRETER;
+ s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
+ }
+ }
+
+ memset (&gpinfo, 0, sizeof (gpinfo));
+ gpinfo.g.info = info;
+
+ for (;;)
+ {
+ htab_t relocs = bfinfdpic_relocs_info (info);
+
+ htab_traverse (relocs, _bfinfdpic_resolve_final_relocs_info, &relocs);
+
+ if (relocs == bfinfdpic_relocs_info (info))
+ break;
+ }
+
+ htab_traverse (bfinfdpic_relocs_info (info), _bfinfdpic_count_got_plt_entries,
+ &gpinfo.g);
+
+ /* Allocate space to save the summary information, we're going to
+ use it if we're doing relaxations. */
+ bfinfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
+
+ if (!_bfinfdpic_size_got_plt (output_bfd, &gpinfo))
+ return FALSE;
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ if (bfinfdpic_got_section (info)->size)
+ if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
+ return FALSE;
+
+ if (bfinfdpic_pltrel_section (info)->size)
+ if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
+ || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
+ || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
+ return FALSE;
+
+ if (bfinfdpic_gotrel_section (info)->size)
+ if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
+ || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
+ || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
+ sizeof (Elf32_External_Rel)))
+ return FALSE;
+ }
+
+ s = bfd_get_linker_section (dynobj, ".dynbss");
+ if (s && s->size == 0)
+ s->flags |= SEC_EXCLUDE;
+
+ s = bfd_get_linker_section (dynobj, ".rela.bss");
+ if (s && s->size == 0)
+ s->flags |= SEC_EXCLUDE;
+
+ return TRUE;
+}
+
+static bfd_boolean
+elf32_bfinfdpic_always_size_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
+{
+ if (!bfd_link_relocatable (info)
+ && !bfd_elf_stack_segment_size (output_bfd, info,
+ "__stacksize", DEFAULT_STACK_SIZE))
+ return FALSE;
+
+ return TRUE;
+}
+
+/* Check whether any of the relocations was optimized away, and
+ subtract it from the relocation or fixup count. */
+static bfd_boolean
+_bfinfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
+ struct bfd_link_info *info,
+ bfd_boolean *changed)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
+ Elf_Internal_Rela *rel, *erel;
+
+ if ((sec->flags & SEC_RELOC) == 0
+ || sec->reloc_count == 0)
+ return TRUE;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
+ if (!elf_bad_symtab (abfd))
+ sym_hashes_end -= symtab_hdr->sh_info;
+
+ rel = elf_section_data (sec)->relocs;
+
+ /* Now examine each relocation. */
+ for (erel = rel + sec->reloc_count; rel < erel; rel++)
+ {
+ struct elf_link_hash_entry *h;
+ unsigned long r_symndx;
+ struct bfinfdpic_relocs_info *picrel;
+ struct _bfinfdpic_dynamic_got_info *dinfo;
+
+ if (ELF32_R_TYPE (rel->r_info) != R_BFIN_BYTE4_DATA
+ && ELF32_R_TYPE (rel->r_info) != R_BFIN_FUNCDESC)
+ continue;
+
+ if (_bfd_elf_section_offset (sec->output_section->owner,
+ info, sec, rel->r_offset)
+ != (bfd_vma)-1)
+ continue;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx < symtab_hdr->sh_info)
+ h = NULL;
+ 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;
+ }
+
+ if (h != NULL)
+ picrel = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
+ abfd, h,
+ rel->r_addend, NO_INSERT);
+ else
+ picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info (info),
+ abfd, r_symndx,
+ rel->r_addend, NO_INSERT);
+
+ if (! picrel)
+ return FALSE;
+
+ *changed = TRUE;
+ dinfo = bfinfdpic_dynamic_got_plt_info (info);
+
+ _bfinfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
+ if (ELF32_R_TYPE (rel->r_info) == R_BFIN_BYTE4_DATA)
+ picrel->relocs32--;
+ else /* we know (ELF32_R_TYPE (rel->r_info) == R_BFIN_FUNCDESC) */
+ picrel->relocsfd--;
+ _bfinfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
+ }
+
+ return TRUE;
+}
+
+static bfd_boolean
+bfinfdpic_elf_discard_info (bfd *ibfd,
+ struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
+{
+ bfd_boolean changed = FALSE;
+ asection *s;
+ bfd *obfd = NULL;
+
+ /* Account for relaxation of .eh_frame section. */
+ for (s = ibfd->sections; s; s = s->next)
+ if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
+ {
+ if (!_bfinfdpic_check_discarded_relocs (ibfd, s, info, &changed))
+ return FALSE;
+ obfd = s->output_section->owner;
+ }
+
+ if (changed)
+ {
+ struct _bfinfdpic_dynamic_got_plt_info gpinfo;
+
+ memset (&gpinfo, 0, sizeof (gpinfo));
+ memcpy (&gpinfo.g, bfinfdpic_dynamic_got_plt_info (info),
+ sizeof (gpinfo.g));
+
+ /* Clear GOT and PLT assignments. */
+ htab_traverse (bfinfdpic_relocs_info (info),
+ _bfinfdpic_reset_got_plt_entries,
+ NULL);
+
+ if (!_bfinfdpic_size_got_plt (obfd, &gpinfo))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static bfd_boolean
+elf32_bfinfdpic_finish_dynamic_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
+{
+ bfd *dynobj;
+ asection *sdyn;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ if (bfinfdpic_got_section (info))
+ {
+ BFD_ASSERT (bfinfdpic_gotrel_section (info)->size
+ /* PR 17334: It appears that the GOT section can end up
+ being bigger than the number of relocs. Presumably
+ because some relocs have been deleted. A test case has
+ yet to be generated for verify this, but in the meantime
+ the test below has been changed from == to >= so that
+ applications can continue to be built. */
+ >= (bfinfdpic_gotrel_section (info)->reloc_count
+ * sizeof (Elf32_External_Rel)));
+
+ if (bfinfdpic_gotfixup_section (info))
+ {
+ struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
+ bfd_vma got_value = hgot->root.u.def.value
+ + hgot->root.u.def.section->output_section->vma
+ + hgot->root.u.def.section->output_offset;
+
+ _bfinfdpic_add_rofixup (output_bfd, bfinfdpic_gotfixup_section (info),
+ got_value, 0);
+
+ if (bfinfdpic_gotfixup_section (info)->size
+ != (bfinfdpic_gotfixup_section (info)->reloc_count * 4))
+ {
+ _bfd_error_handler
+ ("LINKER BUG: .rofixup section size mismatch");
+ return FALSE;
+ }
+ }
+ }
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ BFD_ASSERT (bfinfdpic_pltrel_section (info)->size
+ == (bfinfdpic_pltrel_section (info)->reloc_count
+ * sizeof (Elf32_External_Rel)));
+ }
+
+ sdyn = bfd_get_linker_section (dynobj, ".dynamic");
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ Elf32_External_Dyn * dyncon;
+ Elf32_External_Dyn * dynconend;
+
+ BFD_ASSERT (sdyn != NULL);
+
+ dyncon = (Elf32_External_Dyn *) sdyn->contents;
+ dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
+
+ for (; dyncon < dynconend; dyncon++)
+ {
+ Elf_Internal_Dyn dyn;
+
+ bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
+
+ switch (dyn.d_tag)
+ {
+ default:
+ break;
+
+ case DT_PLTGOT:
+ dyn.d_un.d_ptr = bfinfdpic_got_section (info)->output_section->vma
+ + bfinfdpic_got_section (info)->output_offset
+ + bfinfdpic_got_initial_offset (info);
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
+
+ case DT_JMPREL:
+ dyn.d_un.d_ptr = bfinfdpic_pltrel_section (info)
+ ->output_section->vma
+ + bfinfdpic_pltrel_section (info)->output_offset;
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
+
+ case DT_PLTRELSZ:
+ dyn.d_un.d_val = bfinfdpic_pltrel_section (info)->size;
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+/* Adjust a symbol defined by a dynamic object and referenced by a
+ regular object. */
+
+static bfd_boolean
+elf32_bfinfdpic_adjust_dynamic_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h)
+{
+ bfd * dynobj;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ /* Make sure we know what is going on here. */
+ BFD_ASSERT (dynobj != NULL
+ && (h->is_weakalias
+ || (h->def_dynamic
+ && h->ref_regular
+ && !h->def_regular)));
+
+ /* If this is a weak symbol, and there is a real definition, the
+ processor independent code will have arranged for us to see the
+ real definition first, and we can just use the same value. */
+ if (h->is_weakalias)
+ {
+ struct elf_link_hash_entry *def = weakdef (h);
+ BFD_ASSERT (def->root.type == bfd_link_hash_defined);
+ h->root.u.def.section = def->root.u.def.section;
+ h->root.u.def.value = def->root.u.def.value;
+ }
+
+ return TRUE;
+}
+
+/* Perform any actions needed for dynamic symbols. */
+
+static bfd_boolean
+elf32_bfinfdpic_finish_dynamic_symbol
+(bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
+ Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+/* Decide whether to attempt to turn absptr or lsda encodings in
+ shared libraries into pcrel within the given input section. */
+
+static bfd_boolean
+bfinfdpic_elf_use_relative_eh_frame
+(bfd *input_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ asection *eh_frame_section ATTRIBUTE_UNUSED)
+{
+ /* We can't use PC-relative encodings in FDPIC binaries, in general. */
+ return FALSE;
+}
+
+/* Adjust the contents of an eh_frame_hdr section before they're output. */
+
+static bfd_byte
+bfinfdpic_elf_encode_eh_address (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *osec, bfd_vma offset,
+ asection *loc_sec, bfd_vma loc_offset,
+ bfd_vma *encoded)
+{
+ struct elf_link_hash_entry *h;
+
+ h = elf_hash_table (info)->hgot;
+ BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
+
+ if (! h || (_bfinfdpic_osec_to_segment (abfd, osec)
+ == _bfinfdpic_osec_to_segment (abfd, loc_sec->output_section)))
+ return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
+ loc_sec, loc_offset, encoded);
+
+ BFD_ASSERT (_bfinfdpic_osec_to_segment (abfd, osec)
+ == (_bfinfdpic_osec_to_segment
+ (abfd, h->root.u.def.section->output_section)));
+
+ *encoded = osec->vma + offset
+ - (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+
+ return DW_EH_PE_datarel | DW_EH_PE_sdata4;
+}
+
+
+
+/* Look through the relocs for a section during the first phase.
+
+ Besides handling virtual table relocs for gc, we have to deal with
+ all sorts of PIC-related relocations. We describe below the
+ general plan on how to handle such relocations, even though we only
+ collect information at this point, storing them in hash tables for
+ perusal of later passes.
+
+ 32 relocations are propagated to the linker output when creating
+ position-independent output. LO16 and HI16 relocations are not
+ supposed to be encountered in this case.
+
+ LABEL16 should always be resolvable by the linker, since it's only
+ used by branches.
+
+ LABEL24, on the other hand, is used by calls. If it turns out that
+ the target of a call is a dynamic symbol, a PLT entry must be
+ created for it, which triggers the creation of a private function
+ descriptor and, unless lazy binding is disabled, a lazy PLT entry.
+
+ GPREL relocations require the referenced symbol to be in the same
+ segment as _gp, but this can only be checked later.
+
+ All GOT, GOTOFF and FUNCDESC relocations require a .got section to
+ exist. LABEL24 might as well, since it may require a PLT entry,
+ that will require a got.
+
+ Non-FUNCDESC GOT relocations require a GOT entry to be created
+ regardless of whether the symbol is dynamic. However, since a
+ global symbol that turns out to not be exported may have the same
+ address of a non-dynamic symbol, we don't assign GOT entries at
+ this point, such that we can share them in this case. A relocation
+ for the GOT entry always has to be created, be it to offset a
+ private symbol by the section load address, be it to get the symbol
+ resolved dynamically.
+
+ FUNCDESC GOT relocations require a GOT entry to be created, and
+ handled as if a FUNCDESC relocation was applied to the GOT entry in
+ an object file.
+
+ FUNCDESC relocations referencing a symbol that turns out to NOT be
+ dynamic cause a private function descriptor to be created. The
+ FUNCDESC relocation then decays to a 32 relocation that points at
+ the private descriptor. If the symbol is dynamic, the FUNCDESC
+ relocation is propagated to the linker output, such that the
+ dynamic linker creates the canonical descriptor, pointing to the
+ dynamically-resolved definition of the function.
+
+ Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
+ symbols that are assigned to the same segment as the GOT, but we
+ can only check this later, after we know the complete set of
+ symbols defined and/or exported.
+
+ FUNCDESC GOTOFF relocations require a function descriptor to be
+ created and, unless lazy binding is disabled or the symbol is not
+ dynamic, a lazy PLT entry. Since we can't tell at this point
+ whether a symbol is going to be dynamic, we have to decide later
+ whether to create a lazy PLT entry or bind the descriptor directly
+ to the private function.
+
+ FUNCDESC_VALUE relocations are not supposed to be present in object
+ files, but they may very well be simply propagated to the linker
+ output, since they have no side effect.
+
+
+ A function descriptor always requires a FUNCDESC_VALUE relocation.
+ Whether it's in .plt.rel or not depends on whether lazy binding is
+ enabled and on whether the referenced symbol is dynamic.
+
+ The existence of a lazy PLT requires the resolverStub lazy PLT
+ entry to be present.
+
+
+ As for assignment of GOT, PLT and lazy PLT entries, and private
+ descriptors, we might do them all sequentially, but we can do
+ better than that. For example, we can place GOT entries and
+ private function descriptors referenced using 12-bit operands
+ closer to the PIC register value, such that these relocations don't
+ overflow. Those that are only referenced with LO16 relocations
+ could come next, but we may as well place PLT-required function
+ descriptors in the 12-bit range to make them shorter. Symbols
+ referenced with LO16/HI16 may come next, but we may place
+ additional function descriptors in the 16-bit range if we can
+ reliably tell that we've already placed entries that are ever
+ referenced with only LO16. PLT entries are therefore generated as
+ small as possible, while not introducing relocation overflows in
+ GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
+ generated before or after PLT entries, but not intermingled with
+ them, such that we can have more lazy PLT entries in range for a
+ branch to the resolverStub. The resolverStub should be emitted at
+ the most distant location from the first lazy PLT entry such that
+ it's still in range for a branch, or closer, if there isn't a need
+ for so many lazy PLT entries. Additional lazy PLT entries may be
+ emitted after the resolverStub, as long as branches are still in
+ range. If the branch goes out of range, longer lazy PLT entries
+ are emitted.
+
+ We could further optimize PLT and lazy PLT entries by giving them
+ priority in assignment to closer-to-gr17 locations depending on the
+ number of occurrences of references to them (assuming a function
+ that's called more often is more important for performance, so its
+ PLT entry should be faster), or taking hints from the compiler.
+ Given infinite time and money... :-) */
+
+static bfd_boolean
+bfinfdpic_check_relocs (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;
+ const Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *rel_end;
+ bfd *dynobj;
+ struct bfinfdpic_relocs_info *picrel;
+
+ if (bfd_link_relocatable (info))
+ return TRUE;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+
+ dynobj = elf_hash_table (info)->dynobj;
+ rel_end = relocs + sec->reloc_count;
+ for (rel = relocs; rel < rel_end; rel++)
+ {
+ struct elf_link_hash_entry *h;
+ unsigned long r_symndx;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx < symtab_hdr->sh_info)
+ h = NULL;
+ else
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_BFIN_GOT17M4:
+ case R_BFIN_GOTHI:
+ case R_BFIN_GOTLO:
+ case R_BFIN_FUNCDESC_GOT17M4:
+ case R_BFIN_FUNCDESC_GOTHI:
+ case R_BFIN_FUNCDESC_GOTLO:
+ case R_BFIN_GOTOFF17M4:
+ case R_BFIN_GOTOFFHI:
+ case R_BFIN_GOTOFFLO:
+ case R_BFIN_FUNCDESC_GOTOFF17M4:
+ case R_BFIN_FUNCDESC_GOTOFFHI:
+ case R_BFIN_FUNCDESC_GOTOFFLO:
+ case R_BFIN_FUNCDESC:
+ case R_BFIN_FUNCDESC_VALUE:
+ if (! IS_FDPIC (abfd))
+ goto bad_reloc;
+ /* Fall through. */
+ case R_BFIN_PCREL24:
+ case R_BFIN_PCREL24_JUMP_L:
+ case R_BFIN_BYTE4_DATA:
+ if (IS_FDPIC (abfd) && ! dynobj)
+ {
+ elf_hash_table (info)->dynobj = dynobj = abfd;
+ if (! _bfin_create_got_section (abfd, info))
+ return FALSE;
+ }
+ if (! IS_FDPIC (abfd))
+ {
+ picrel = NULL;
+ break;
+ }
+ if (h != NULL)
+ {
+ if (h->dynindx == -1)
+ switch (ELF_ST_VISIBILITY (h->other))
+ {
+ case STV_INTERNAL:
+ case STV_HIDDEN:
+ break;
+ default:
+ bfd_elf_link_record_dynamic_symbol (info, h);
+ break;
+ }
+ picrel
+ = bfinfdpic_relocs_info_for_global (bfinfdpic_relocs_info (info),
+ abfd, h,
+ rel->r_addend, INSERT);
+ }
+ else
+ picrel = bfinfdpic_relocs_info_for_local (bfinfdpic_relocs_info
+ (info), abfd, r_symndx,
+ rel->r_addend, INSERT);
+ if (! picrel)
+ return FALSE;
+ break;
+
+ default:
+ picrel = NULL;
+ break;
+ }
+
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_BFIN_PCREL24:
+ case R_BFIN_PCREL24_JUMP_L:
+ if (IS_FDPIC (abfd))
+ picrel->call++;
+ break;
+
+ case R_BFIN_FUNCDESC_VALUE:
+ picrel->relocsfdv++;
+ if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
+ picrel->relocs32--;
+ /* Fall through. */
+
+ case R_BFIN_BYTE4_DATA:
+ if (! IS_FDPIC (abfd))
+ break;
+
+ picrel->sym++;
+ if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
+ picrel->relocs32++;
+ break;
+
+ case R_BFIN_GOT17M4:
+ picrel->got17m4++;
+ break;
+
+ case R_BFIN_GOTHI:
+ case R_BFIN_GOTLO:
+ picrel->gothilo++;
+ break;
+
+ case R_BFIN_FUNCDESC_GOT17M4:
+ picrel->fdgot17m4++;
+ break;
+
+ case R_BFIN_FUNCDESC_GOTHI:
+ case R_BFIN_FUNCDESC_GOTLO:
+ picrel->fdgothilo++;
+ break;
+
+ case R_BFIN_GOTOFF17M4:
+ case R_BFIN_GOTOFFHI:
+ case R_BFIN_GOTOFFLO:
+ picrel->gotoff++;
+ break;
+
+ case R_BFIN_FUNCDESC_GOTOFF17M4:
+ picrel->fdgoff17m4++;
+ break;
+
+ case R_BFIN_FUNCDESC_GOTOFFHI:
+ case R_BFIN_FUNCDESC_GOTOFFLO:
+ picrel->fdgoffhilo++;
+ break;
+
+ case R_BFIN_FUNCDESC:
+ picrel->fd++;
+ picrel->relocsfd++;
+ break;
+
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_BFIN_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_BFIN_GNU_VTENTRY:
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+
+ case R_BFIN_HUIMM16:
+ case R_BFIN_LUIMM16:
+ case R_BFIN_PCREL12_JUMP_S:
+ case R_BFIN_PCREL10:
+ break;
+
+ default:
+ bad_reloc:
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%B: unsupported relocation type %d"),
+ abfd, (int) ELF32_R_TYPE (rel->r_info));
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+/* Set the right machine number for a Blackfin ELF file. */
+
+static bfd_boolean
+elf32_bfin_object_p (bfd *abfd)
+{
+ bfd_default_set_arch_mach (abfd, bfd_arch_bfin, 0);
+ return (((elf_elfheader (abfd)->e_flags & EF_BFIN_FDPIC) != 0)
+ == (IS_FDPIC (abfd)));
+}
+
+static bfd_boolean
+elf32_bfin_set_private_flags (bfd * abfd, flagword flags)
+{
+ elf_elfheader (abfd)->e_flags = flags;
+ elf_flags_init (abfd) = TRUE;
+ return TRUE;
+}
+
+/* Display the flags field. */
+static bfd_boolean
+elf32_bfin_print_private_bfd_data (bfd * abfd, void * ptr)
+{
+ FILE *file = (FILE *) ptr;
+ flagword flags;
+
+ BFD_ASSERT (abfd != NULL && ptr != NULL);
+
+ /* Print normal ELF private data. */
+ _bfd_elf_print_private_bfd_data (abfd, ptr);
+
+ flags = elf_elfheader (abfd)->e_flags;
+
+ /* xgettext:c-format */
+ fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
+
+ if (flags & EF_BFIN_PIC)
+ fprintf (file, " -fpic");
+
+ if (flags & EF_BFIN_FDPIC)
+ fprintf (file, " -mfdpic");
+
+ fputc ('\n', file);
+
+ return TRUE;
+}
+
+/* Merge backend specific data from an object file to the output
+ object file when linking. */
+
+static bfd_boolean
+elf32_bfin_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
+{
+ bfd *obfd = info->output_bfd;
+ flagword old_flags, new_flags;
+ bfd_boolean error = FALSE;
+
+ new_flags = elf_elfheader (ibfd)->e_flags;
+ old_flags = elf_elfheader (obfd)->e_flags;
+
+ if (new_flags & EF_BFIN_FDPIC)
+ new_flags &= ~EF_BFIN_PIC;
+
+#ifndef DEBUG
+ if (0)
+#endif
+ _bfd_error_handler
+ ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %B",
+ old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no", ibfd);
+
+ if (!elf_flags_init (obfd)) /* First call, no flags set. */
+ {
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = new_flags;
+ }
+
+ if (((new_flags & EF_BFIN_FDPIC) == 0) != (! IS_FDPIC (obfd)))
+ {
+ error = TRUE;
+ if (IS_FDPIC (obfd))
+ _bfd_error_handler
+ (_("%B: cannot link non-fdpic object file into fdpic executable"),
+ ibfd);
+ else
+ _bfd_error_handler
+ (_("%B: cannot link fdpic object file into non-fdpic executable"),
+ ibfd);
+ }
+
+ if (error)
+ bfd_set_error (bfd_error_bad_value);
+
+ return !error;
+}
+\f
+/* bfin ELF linker hash entry. */
+
+struct bfin_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+
+ /* Number of PC relative relocs copied for this symbol. */
+ struct bfin_pcrel_relocs_copied *pcrel_relocs_copied;
+};
+
+/* bfin ELF linker hash table. */
+
+struct bfin_link_hash_table
+{
+ struct elf_link_hash_table root;
+
+ /* Small local sym cache. */
+ struct sym_cache sym_cache;
+};
+
+#define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent))
+
+static struct bfd_hash_entry *
+bfin_link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table, const char *string)
+{
+ struct bfd_hash_entry *ret = entry;
+
+ /* Allocate the structure if it has not already been allocated by a
subclass. */
if (ret == NULL)
ret = bfd_hash_allocate (table, sizeof (struct bfin_link_hash_entry));
struct bfin_link_hash_table *ret;
bfd_size_type amt = sizeof (struct bfin_link_hash_table);
- ret = (struct bfin_link_hash_table *) bfd_malloc (amt);
- if (ret == (struct bfin_link_hash_table *) NULL)
+ ret = bfd_zmalloc (amt);
+ if (ret == NULL)
return NULL;
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
bfin_link_hash_newfunc,
- sizeof (struct bfin_link_hash_entry)))
+ sizeof (struct elf_link_hash_entry),
+ BFIN_ELF_DATA))
{
free (ret);
return NULL;
}
- ret->sym_sec.abfd = NULL;
+ ret->sym_cache.abfd = NULL;
return &ret->root.root;
}
static bfd_boolean
bfin_finish_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
+ struct bfd_link_info *info)
{
bfd *dynobj;
asection *sdyn;
dynobj = elf_hash_table (info)->dynobj;
- sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+ sdyn = bfd_get_linker_section (dynobj, ".dynamic");
if (elf_hash_table (info)->dynamic_sections_created)
{
static bfd_boolean
bfin_finish_dynamic_symbol (bfd * output_bfd,
- struct bfd_link_info *info,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym * sym)
+ struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym * sym)
{
- bfd *dynobj;
-
- dynobj = elf_hash_table (info)->dynobj;
-
if (h->got.offset != (bfd_vma) - 1)
{
asection *sgot;
bfd_byte *loc;
/* This symbol has an entry in the global offset table.
- Set it up. */
+ Set it up. */
- sgot = bfd_get_section_by_name (dynobj, ".got");
- srela = bfd_get_section_by_name (dynobj, ".rela.got");
+ sgot = elf_hash_table (info)->sgot;
+ srela = elf_hash_table (info)->srelgot;
BFD_ASSERT (sgot != NULL && srela != NULL);
rela.r_offset = (sgot->output_section->vma
+ (h->got.offset & ~(bfd_vma) 1));
/* If this is a -Bsymbolic link, and the symbol is defined
- locally, we just want to emit a RELATIVE reloc. Likewise if
- the symbol was forced to be local because of a version file.
- The entry in the global offset table will already have been
- initialized in the relocate_section function. */
- if (info->shared
+ locally, we just want to emit a RELATIVE reloc. Likewise if
+ the symbol was forced to be local because of a version file.
+ The entry in the global offset table will already have been
+ initialized in the relocate_section function. */
+ if (bfd_link_pic (info)
&& (info->symbolic
|| h->dynindx == -1 || h->forced_local) && h->def_regular)
{
-fprintf(stderr, "*** check this relocation %s\n", __FUNCTION__);
- rela.r_info = ELF32_R_INFO (0, R_pcrel24);
+ _bfd_error_handler (_("*** check this relocation %s"),
+ __FUNCTION__);
+ rela.r_info = ELF32_R_INFO (0, R_BFIN_PCREL24);
rela.r_addend = bfd_get_signed_32 (output_bfd,
(sgot->contents
+
{
bfd_put_32 (output_bfd, (bfd_vma) 0,
sgot->contents + (h->got.offset & ~(bfd_vma) 1));
- rela.r_info = ELF32_R_INFO (h->dynindx, R_got);
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_BFIN_GOT);
rela.r_addend = 0;
}
BFD_ASSERT (0);
}
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
- if (strcmp (h->root.root.string, "_DYNAMIC") == 0
+ if (strcmp (h->root.root.string, "__DYNAMIC") == 0
|| h == elf_hash_table (info)->hgot)
sym->st_shndx = SHN_ABS;
static bfd_boolean
bfin_adjust_dynamic_symbol (struct bfd_link_info *info,
- struct elf_link_hash_entry *h)
+ struct elf_link_hash_entry *h)
{
bfd *dynobj;
asection *s;
/* Make sure we know what is going on here. */
BFD_ASSERT (dynobj != NULL
&& (h->needs_plt
- || h->u.weakdef != NULL
+ || h->is_weakalias
|| (h->def_dynamic && h->ref_regular && !h->def_regular)));
/* If this is a function, put it in the procedure linkage table. We
/* If this is a weak symbol, and there is a real definition, the
processor independent code will have arranged for us to see the
real definition first, and we can just use the same value. */
- if (h->u.weakdef != NULL)
+ if (h->is_weakalias)
{
- BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
- || h->u.weakdef->root.type == bfd_link_hash_defweak);
- h->root.u.def.section = h->u.weakdef->root.u.def.section;
- h->root.u.def.value = h->u.weakdef->root.u.def.value;
+ struct elf_link_hash_entry *def = weakdef (h);
+ BFD_ASSERT (def->root.type == bfd_link_hash_defined);
+ h->root.u.def.section = def->root.u.def.section;
+ h->root.u.def.value = def->root.u.def.value;
return TRUE;
}
only references to the symbol are via the global offset table.
For such cases we need not do anything here; the relocations will
be handled correctly by relocate_section. */
- if (info->shared)
+ if (bfd_link_pic (info))
return TRUE;
/* We must allocate the symbol in our .dynbss section, which will
both the dynamic object and the regular object will refer to the
same memory location for the variable. */
- s = bfd_get_section_by_name (dynobj, ".dynbss");
+ s = bfd_get_linker_section (dynobj, ".dynbss");
BFD_ASSERT (s != NULL);
- /* We must generate a R_68K_COPY reloc to tell the dynamic linker to
+#if 0 /* Bfin does not currently have a COPY reloc. */
+ /* We must generate a R_BFIN_COPY reloc to tell the dynamic linker to
copy the initial value out of the dynamic object and into the
runtime process image. We need to remember the offset into the
.rela.bss section we are going to use. */
{
asection *srel;
- srel = bfd_get_section_by_name (dynobj, ".rela.bss");
+ srel = bfd_get_linker_section (dynobj, ".rela.bss");
BFD_ASSERT (srel != NULL);
srel->size += sizeof (Elf32_External_Rela);
h->needs_copy = 1;
}
-
+#else
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+ {
+ _bfd_error_handler (_("the bfin target does not currently support the generation of copy relocations"));
+ return FALSE;
+ }
+#endif
/* We need to figure out the alignment required for this symbol. I
have no idea how ELF linkers handle this. */
power_of_two = bfd_log2 (h->size);
case. */
static bfd_boolean
-bfin_discard_copies (struct elf_link_hash_entry *h, PTR inf)
+bfin_discard_copies (struct elf_link_hash_entry *h, void * inf)
{
struct bfd_link_info *info = (struct bfd_link_info *) inf;
struct bfin_pcrel_relocs_copied *s;
- if (h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
if (!h->def_regular || (!info->symbolic && !h->forced_local))
{
if ((info->flags & DF_TEXTREL) == 0)
return TRUE;
}
-/* Set the sizes of the dynamic sections. */
-#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
-
static bfd_boolean
bfin_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
+ struct bfd_link_info *info)
{
bfd *dynobj;
asection *s;
if (elf_hash_table (info)->dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
- if (info->executable)
+ if (bfd_link_executable (info) && !info->nointerp)
{
- s = bfd_get_section_by_name (dynobj, ".interp");
+ s = bfd_get_linker_section (dynobj, ".interp");
BFD_ASSERT (s != NULL);
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
else
{
/* We may have created entries in the .rela.got section.
- However, if we are not creating the dynamic sections, we will
- not actually use these entries. Reset the size of .rela.got,
- which will cause it to get stripped from the output file
- below. */
- s = bfd_get_section_by_name (dynobj, ".rela.got");
+ However, if we are not creating the dynamic sections, we will
+ not actually use these entries. Reset the size of .rela.got,
+ which will cause it to get stripped from the output file
+ below. */
+ s = elf_hash_table (info)->srelgot;
if (s != NULL)
s->size = 0;
}
against symbols that have become local due to visibility changes.
We allocated space for them in the check_relocs routine, but we
will not fill them in in the relocate_section routine. */
- if (info->shared)
+ if (bfd_link_pic (info))
elf_link_hash_traverse (elf_hash_table (info),
- bfin_discard_copies, (PTR) info);
+ bfin_discard_copies, info);
/* The check_relocs and adjust_dynamic_symbol entry points have
determined the sizes of the various dynamic sections. Allocate
continue;
/* It's OK to base decisions on the section name, because none
- of the dynobj section names depend upon the input files. */
+ of the dynobj section names depend upon the input files. */
name = bfd_get_section_name (dynobj, s);
strip = FALSE;
- if (strncmp (name, ".rela", 5) == 0)
+ if (CONST_STRNEQ (name, ".rela"))
{
if (s->size == 0)
{
/* If we don't need this section, strip it from the
- output file. This is mostly to handle .rela.bss and
- .rela.plt. We must create both sections in
- create_dynamic_sections, because they must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
+ output file. This is mostly to handle .rela.bss and
+ .rela.plt. We must create both sections in
+ create_dynamic_sections, because they must be created
+ before the linker maps input sections to output
+ sections. The linker does that before
+ adjust_dynamic_symbol is called, and it is that
+ function which decides whether anything needs to go
+ into these sections. */
strip = TRUE;
}
else
relocs = TRUE;
/* We use the reloc_count field as a counter if we need
- to copy relocs into the output file. */
+ to copy relocs into the output file. */
s->reloc_count = 0;
}
}
- else if (strncmp (name, ".got", 4) != 0)
+ else if (! CONST_STRNEQ (name, ".got"))
{
/* It's not one of our sections, so don't allocate space. */
continue;
/* Allocate memory for the section contents. */
/* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
- Unused entries should be reclaimed before the section's contents
- are written out, but at the moment this does not happen. Thus in
- order to prevent writing out garbage, we initialise the section's
- contents to zero. */
+ Unused entries should be reclaimed before the section's contents
+ are written out, but at the moment this does not happen. Thus in
+ order to prevent writing out garbage, we initialise the section's
+ contents to zero. */
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
if (s->contents == NULL && s->size != 0)
return FALSE;
if (elf_hash_table (info)->dynamic_sections_created)
{
/* Add some entries to the .dynamic section. We fill in the
- values later, in bfin_finish_dynamic_sections, but we
- must add the entries now so that we get the correct size for
- the .dynamic section. The DT_DEBUG entry is filled in by the
- dynamic linker and used by the debugger. */
+ values later, in bfin_finish_dynamic_sections, but we
+ must add the entries now so that we get the correct size for
+ 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_elf_add_dynamic_entry (info, TAG, VAL)
- if (!info->shared)
+ if (!bfd_link_pic (info))
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
return TRUE;
}
-
+\f
/* Given a .data section and a .emreloc in-memory section, store
relocation information into the .emreloc section which can be
used at runtime to relocate the section. This is called by the
after the add_symbols entry point has been called for all the
objects, and before the final_link entry point is called. */
-bfd_boolean bfd_bfin_elf32_create_embedded_relocs
- PARAMS ((bfd *, struct bfd_link_info *, asection *, asection *, char **));
-
bfd_boolean
-bfd_bfin_elf32_create_embedded_relocs (
- bfd *abfd,
- struct bfd_link_info *info,
- asection *datasec,
- asection *relsec,
- char **errmsg)
+bfd_bfin_elf32_create_embedded_relocs (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *datasec,
+ asection *relsec,
+ char **errmsg)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Sym *isymbuf = NULL;
bfd_byte *p;
bfd_size_type amt;
- BFD_ASSERT (! info->relocatable);
+ BFD_ASSERT (! bfd_link_relocatable (info));
*errmsg = NULL;
/* Get a copy of the native relocations. */
internal_relocs = (_bfd_elf_link_read_relocs
- (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
+ (abfd, datasec, NULL, (Elf_Internal_Rela *) NULL,
info->keep_memory));
if (internal_relocs == NULL)
goto error_return;
characters. */
/* We can only relocate absolute longword relocs at run time. */
- if (ELF32_R_TYPE (irel->r_info) != (int) R_byte4_data)
+ if (ELF32_R_TYPE (irel->r_info) != (int) R_BFIN_BYTE4_DATA)
{
*errmsg = _("unsupported reloc type");
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
-#define TARGET_LITTLE_SYM bfd_elf32_bfin_vec
+struct bfd_elf_special_section const elf32_bfin_special_sections[] =
+{
+ { ".l1.text", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
+ { ".l1.data", 8, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
+};
+
+\f
+#define TARGET_LITTLE_SYM bfin_elf32_vec
#define TARGET_LITTLE_NAME "elf32-bfin"
#define ELF_ARCH bfd_arch_bfin
+#define ELF_TARGET_ID BFIN_ELF_DATA
#define ELF_MACHINE_CODE EM_BLACKFIN
#define ELF_MAXPAGESIZE 0x1000
#define elf_symbol_leading_char '_'
#define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup \
+ bfin_bfd_reloc_name_lookup
#define elf_info_to_howto bfin_info_to_howto
#define elf_info_to_howto_rel 0
+#define elf_backend_object_p elf32_bfin_object_p
#define bfd_elf32_bfd_is_local_label_name \
- bfin_is_local_label_name
+ bfin_is_local_label_name
#define bfin_hash_table(p) \
((struct bfin_link_hash_table *) (p)->hash)
#define elf_backend_create_dynamic_sections \
- _bfd_elf_create_dynamic_sections
+ _bfd_elf_create_dynamic_sections
#define bfd_elf32_bfd_link_hash_table_create \
- bfin_link_hash_table_create
-#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
+ bfin_link_hash_table_create
+#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
-#define elf_backend_check_relocs bfin_check_relocs
+#define elf_backend_check_relocs bfin_check_relocs
#define elf_backend_adjust_dynamic_symbol \
- bfin_adjust_dynamic_symbol
+ bfin_adjust_dynamic_symbol
#define elf_backend_size_dynamic_sections \
- bfin_size_dynamic_sections
-#define elf_backend_relocate_section bfin_relocate_section
+ bfin_size_dynamic_sections
+#define elf_backend_relocate_section bfin_relocate_section
#define elf_backend_finish_dynamic_symbol \
- bfin_finish_dynamic_symbol
+ bfin_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
- bfin_finish_dynamic_sections
-#define elf_backend_gc_mark_hook bfin_gc_mark_hook
-#define elf_backend_gc_sweep_hook bfin_gc_sweep_hook
+ bfin_finish_dynamic_sections
+#define elf_backend_gc_mark_hook bfin_gc_mark_hook
#define bfd_elf32_bfd_merge_private_bfd_data \
- elf32_bfin_merge_private_bfd_data
+ elf32_bfin_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags \
- elf32_bfin_set_private_flags
+ elf32_bfin_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data \
- elf32_bfin_print_private_bfd_data
-#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
+ elf32_bfin_print_private_bfd_data
+#define elf_backend_final_write_processing \
+ elf32_bfin_final_write_processing
+#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
+#define elf_backend_stack_align 8
#define elf_backend_can_gc_sections 1
+#define elf_backend_special_sections elf32_bfin_special_sections
#define elf_backend_can_refcount 1
#define elf_backend_want_got_plt 0
#define elf_backend_plt_readonly 1
#define elf_backend_want_plt_sym 0
-#define elf_backend_got_header_size 12
-#define elf_backend_rela_normal 1
+#define elf_backend_got_header_size 12
+#define elf_backend_rela_normal 1
+
+#include "elf32-target.h"
+
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfin_elf32_fdpic_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-bfinfdpic"
+#undef elf32_bed
+#define elf32_bed elf32_bfinfdpic_bed
+
+#undef elf_backend_got_header_size
+#define elf_backend_got_header_size 0
+#undef elf_backend_relocate_section
+#define elf_backend_relocate_section bfinfdpic_relocate_section
+#undef elf_backend_check_relocs
+#define elf_backend_check_relocs bfinfdpic_check_relocs
+
+#undef bfd_elf32_bfd_link_hash_table_create
+#define bfd_elf32_bfd_link_hash_table_create \
+ bfinfdpic_elf_link_hash_table_create
+#undef elf_backend_always_size_sections
+#define elf_backend_always_size_sections \
+ elf32_bfinfdpic_always_size_sections
+
+#undef elf_backend_create_dynamic_sections
+#define elf_backend_create_dynamic_sections \
+ elf32_bfinfdpic_create_dynamic_sections
+#undef elf_backend_adjust_dynamic_symbol
+#define elf_backend_adjust_dynamic_symbol \
+ elf32_bfinfdpic_adjust_dynamic_symbol
+#undef elf_backend_size_dynamic_sections
+#define elf_backend_size_dynamic_sections \
+ elf32_bfinfdpic_size_dynamic_sections
+#undef elf_backend_finish_dynamic_symbol
+#define elf_backend_finish_dynamic_symbol \
+ elf32_bfinfdpic_finish_dynamic_symbol
+#undef elf_backend_finish_dynamic_sections
+#define elf_backend_finish_dynamic_sections \
+ elf32_bfinfdpic_finish_dynamic_sections
+
+#undef elf_backend_discard_info
+#define elf_backend_discard_info \
+ bfinfdpic_elf_discard_info
+#undef elf_backend_can_make_relative_eh_frame
+#define elf_backend_can_make_relative_eh_frame \
+ bfinfdpic_elf_use_relative_eh_frame
+#undef elf_backend_can_make_lsda_relative_eh_frame
+#define elf_backend_can_make_lsda_relative_eh_frame \
+ bfinfdpic_elf_use_relative_eh_frame
+#undef elf_backend_encode_eh_address
+#define elf_backend_encode_eh_address \
+ bfinfdpic_elf_encode_eh_address
+
+#undef elf_backend_may_use_rel_p
+#define elf_backend_may_use_rel_p 1
+#undef elf_backend_may_use_rela_p
+#define elf_backend_may_use_rela_p 1
+/* We use REL for dynamic relocations only. */
+#undef elf_backend_default_use_rela_p
+#define elf_backend_default_use_rela_p 1
+
+#undef elf_backend_omit_section_dynsym
+#define elf_backend_omit_section_dynsym _bfinfdpic_link_omit_section_dynsym
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff