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binutils-gdb/bfd/elf32-tic6x.c
Joseph Myers 0547accfd9 bfd: 
* elf32-tic6x.c (elf32_tic6x_obj_attrs_handle_unknown): New.
	(elf32_tic6x_merge_attributes): Use
	_bfd_elf_merge_unknown_attribute_low and
	_bfd_elf_merge_unknown_attribute_list.
	(elf_backend_obj_attrs_handle_unknown): Define.

ld/testsuite:
	* ld-tic6x/attr-unknown-1.d, ld-tic6x/attr-unknown-1000-1.s,
	ld-tic6x/attr-unknown-1000-2.s, ld-tic6x/attr-unknown-1024-1.s,
	ld-tic6x/attr-unknown-2.d, ld-tic6x/attr-unknown-3.d,
	ld-tic6x/attr-unknown-4.d, ld-tic6x/attr-unknown-5.d,
	ld-tic6x/attr-unknown-54-1.s, ld-tic6x/attr-unknown-55-a.s,
	ld-tic6x/attr-unknown-6.d, ld-tic6x/attr-unknown-7.d,
	ld-tic6x/attr-unknown-71-a.s, ld-tic6x/attr-unknown-71-b.s: New
	tests.
2010-11-05 13:04:07 +00:00

2026 lines
55 KiB
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/* 32-bit ELF support for TI C6X
Copyright 2010
Free Software Foundation, Inc.
Contributed by Joseph Myers <joseph@codesourcery.com>
Bernd Schmidt <bernds@codesourcery.com>
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "libiberty.h"
#include "elf-bfd.h"
#include "elf/tic6x.h"
#include "elf32-tic6x.h"
struct elf32_tic6x_obj_tdata
{
struct elf_obj_tdata root;
/* Whether to use RELA relocations when generating relocations.
This is a per-object flag to allow the assembler to generate REL
relocations for use in linker testcases. */
bfd_boolean use_rela_p;
};
#define elf32_tic6x_tdata(abfd) \
((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
static reloc_howto_type elf32_tic6x_howto_table[] =
{
HOWTO (R_C6000_NONE, /* type */
0, /* rightshift */
0, /* 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_C6000_NONE", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS32", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS16", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS8", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x000000ff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S21, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
21, /* bitsize */
TRUE, /* pc_relative */
7, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S21", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x0fffff80, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S12, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
12, /* bitsize */
TRUE, /* pc_relative */
16, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S12", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x0fff0000, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S10, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
10, /* bitsize */
TRUE, /* pc_relative */
13, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S10", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fe000, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S7, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
7, /* bitsize */
TRUE, /* pc_relative */
16, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S7", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007f0000, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_ABS_S16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS_S16", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS_L16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS_L16", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS_H16, /* type */
16, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS_H16", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_U15_B, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_U15_B", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_U15_H, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_U15_H", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_U15_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_U15_W", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_S16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_S16", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_L16_B, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_L16_B", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_L16_H, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_L16_H", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_L16_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_L16_W", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_H16_B, /* type */
16, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_H16_B", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_H16_H, /* type */
17, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_H16_H", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_H16_W, /* type */
18, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_H16_W", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_GOT_U15_W",/* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_GOT_L16_W",/* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
18, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_GOT_H16_W",/* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_DSBT_INDEX, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_DSBT_INDEX", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_PREL31, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
31, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PREL31", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0x7fffffff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_COPY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_COPY", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (27),
EMPTY_HOWTO (28),
EMPTY_HOWTO (29),
EMPTY_HOWTO (30),
EMPTY_HOWTO (31),
EMPTY_HOWTO (32),
EMPTY_HOWTO (33),
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HOWTO (R_C6000_ALIGN, /* type */
0, /* rightshift */
0, /* 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_C6000_ALIGN", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_FPHEAD, /* type */
0, /* rightshift */
0, /* 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_C6000_FPHEAD", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_NOCMP, /* type */
0, /* rightshift */
0, /* 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_C6000_NOCMP", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE) /* pcrel_offset */
};
static reloc_howto_type elf32_tic6x_howto_table_rel[] =
{
HOWTO (R_C6000_NONE, /* type */
0, /* rightshift */
0, /* 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_C6000_NONE", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS32", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS16", /* name */
TRUE, /* partial_inplace */
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS8", /* name */
TRUE, /* partial_inplace */
0x000000ff, /* src_mask */
0x000000ff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S21, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
21, /* bitsize */
TRUE, /* pc_relative */
7, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S21", /* name */
TRUE, /* partial_inplace */
0x0fffff80, /* src_mask */
0x0fffff80, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S12, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
12, /* bitsize */
TRUE, /* pc_relative */
16, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S12", /* name */
TRUE, /* partial_inplace */
0x0fff0000, /* src_mask */
0x0fff0000, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S10, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
10, /* bitsize */
TRUE, /* pc_relative */
13, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S10", /* name */
TRUE, /* partial_inplace */
0x007fe000, /* src_mask */
0x007fe000, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_PCR_S7, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
7, /* bitsize */
TRUE, /* pc_relative */
16, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PCR_S7", /* name */
TRUE, /* partial_inplace */
0x007f0000, /* src_mask */
0x007f0000, /* dst_mask */
TRUE), /* pcrel_offset */
HOWTO (R_C6000_ABS_S16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS_S16", /* name */
TRUE, /* partial_inplace */
0x007fff80, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_ABS_L16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_ABS_L16", /* name */
TRUE, /* partial_inplace */
0x007fff80, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (R_C6000_ABS_H16),
HOWTO (R_C6000_SBR_U15_B, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_U15_B", /* name */
TRUE, /* partial_inplace */
0x007fff00, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_U15_H, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_U15_H", /* name */
TRUE, /* partial_inplace */
0x007fff00, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_U15_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_U15_W", /* name */
TRUE, /* partial_inplace */
0x007fff00, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_S16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_S16", /* name */
TRUE, /* partial_inplace */
0x007fff80, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_L16_B, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_L16_B", /* name */
TRUE, /* partial_inplace */
0x007fff80, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_L16_H, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_L16_H", /* name */
TRUE, /* partial_inplace */
0x007fff80, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_L16_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_L16_W", /* name */
TRUE, /* partial_inplace */
0x007fff80, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (R_C6000_SBR_H16_B),
EMPTY_HOWTO (R_C6000_SBR_H16_H),
EMPTY_HOWTO (R_C6000_SBR_H16_W),
HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_GOT_U15_W",/* name */
TRUE, /* partial_inplace */
0x007fff00, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
7, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_SBR_GOT_L16_W",/* name */
TRUE, /* partial_inplace */
0x007fff80, /* src_mask */
0x007fff80, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
HOWTO (R_C6000_DSBT_INDEX, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
15, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_DSBT_INDEX", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0x007fff00, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_PREL31, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
31, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_PREL31", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0x7fffffff, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_COPY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_C6000_COPY", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (27),
EMPTY_HOWTO (28),
EMPTY_HOWTO (29),
EMPTY_HOWTO (30),
EMPTY_HOWTO (31),
EMPTY_HOWTO (32),
EMPTY_HOWTO (33),
EMPTY_HOWTO (34),
EMPTY_HOWTO (35),
EMPTY_HOWTO (36),
EMPTY_HOWTO (37),
EMPTY_HOWTO (38),
EMPTY_HOWTO (39),
EMPTY_HOWTO (40),
EMPTY_HOWTO (41),
EMPTY_HOWTO (42),
EMPTY_HOWTO (43),
EMPTY_HOWTO (44),
EMPTY_HOWTO (45),
EMPTY_HOWTO (46),
EMPTY_HOWTO (47),
EMPTY_HOWTO (48),
EMPTY_HOWTO (49),
EMPTY_HOWTO (50),
EMPTY_HOWTO (51),
EMPTY_HOWTO (52),
EMPTY_HOWTO (53),
EMPTY_HOWTO (54),
EMPTY_HOWTO (55),
EMPTY_HOWTO (56),
EMPTY_HOWTO (57),
EMPTY_HOWTO (58),
EMPTY_HOWTO (59),
EMPTY_HOWTO (60),
EMPTY_HOWTO (61),
EMPTY_HOWTO (62),
EMPTY_HOWTO (63),
EMPTY_HOWTO (64),
EMPTY_HOWTO (65),
EMPTY_HOWTO (66),
EMPTY_HOWTO (67),
EMPTY_HOWTO (68),
EMPTY_HOWTO (69),
EMPTY_HOWTO (70),
EMPTY_HOWTO (71),
EMPTY_HOWTO (72),
EMPTY_HOWTO (73),
EMPTY_HOWTO (74),
EMPTY_HOWTO (75),
EMPTY_HOWTO (76),
EMPTY_HOWTO (77),
EMPTY_HOWTO (78),
EMPTY_HOWTO (79),
EMPTY_HOWTO (80),
EMPTY_HOWTO (81),
EMPTY_HOWTO (82),
EMPTY_HOWTO (83),
EMPTY_HOWTO (84),
EMPTY_HOWTO (85),
EMPTY_HOWTO (86),
EMPTY_HOWTO (87),
EMPTY_HOWTO (88),
EMPTY_HOWTO (89),
EMPTY_HOWTO (90),
EMPTY_HOWTO (91),
EMPTY_HOWTO (92),
EMPTY_HOWTO (93),
EMPTY_HOWTO (94),
EMPTY_HOWTO (95),
EMPTY_HOWTO (96),
EMPTY_HOWTO (97),
EMPTY_HOWTO (98),
EMPTY_HOWTO (99),
EMPTY_HOWTO (100),
EMPTY_HOWTO (101),
EMPTY_HOWTO (102),
EMPTY_HOWTO (103),
EMPTY_HOWTO (104),
EMPTY_HOWTO (105),
EMPTY_HOWTO (106),
EMPTY_HOWTO (107),
EMPTY_HOWTO (108),
EMPTY_HOWTO (109),
EMPTY_HOWTO (110),
EMPTY_HOWTO (111),
EMPTY_HOWTO (112),
EMPTY_HOWTO (113),
EMPTY_HOWTO (114),
EMPTY_HOWTO (115),
EMPTY_HOWTO (116),
EMPTY_HOWTO (117),
EMPTY_HOWTO (118),
EMPTY_HOWTO (119),
EMPTY_HOWTO (120),
EMPTY_HOWTO (121),
EMPTY_HOWTO (122),
EMPTY_HOWTO (123),
EMPTY_HOWTO (124),
EMPTY_HOWTO (125),
EMPTY_HOWTO (126),
EMPTY_HOWTO (127),
EMPTY_HOWTO (128),
EMPTY_HOWTO (129),
EMPTY_HOWTO (130),
EMPTY_HOWTO (131),
EMPTY_HOWTO (132),
EMPTY_HOWTO (133),
EMPTY_HOWTO (134),
EMPTY_HOWTO (135),
EMPTY_HOWTO (136),
EMPTY_HOWTO (137),
EMPTY_HOWTO (138),
EMPTY_HOWTO (139),
EMPTY_HOWTO (140),
EMPTY_HOWTO (141),
EMPTY_HOWTO (142),
EMPTY_HOWTO (143),
EMPTY_HOWTO (144),
EMPTY_HOWTO (145),
EMPTY_HOWTO (146),
EMPTY_HOWTO (147),
EMPTY_HOWTO (148),
EMPTY_HOWTO (149),
EMPTY_HOWTO (150),
EMPTY_HOWTO (151),
EMPTY_HOWTO (152),
EMPTY_HOWTO (153),
EMPTY_HOWTO (154),
EMPTY_HOWTO (155),
EMPTY_HOWTO (156),
EMPTY_HOWTO (157),
EMPTY_HOWTO (158),
EMPTY_HOWTO (159),
EMPTY_HOWTO (160),
EMPTY_HOWTO (161),
EMPTY_HOWTO (162),
EMPTY_HOWTO (163),
EMPTY_HOWTO (164),
EMPTY_HOWTO (165),
EMPTY_HOWTO (166),
EMPTY_HOWTO (167),
EMPTY_HOWTO (168),
EMPTY_HOWTO (169),
EMPTY_HOWTO (170),
EMPTY_HOWTO (171),
EMPTY_HOWTO (172),
EMPTY_HOWTO (173),
EMPTY_HOWTO (174),
EMPTY_HOWTO (175),
EMPTY_HOWTO (176),
EMPTY_HOWTO (177),
EMPTY_HOWTO (178),
EMPTY_HOWTO (179),
EMPTY_HOWTO (180),
EMPTY_HOWTO (181),
EMPTY_HOWTO (182),
EMPTY_HOWTO (183),
EMPTY_HOWTO (184),
EMPTY_HOWTO (185),
EMPTY_HOWTO (186),
EMPTY_HOWTO (187),
EMPTY_HOWTO (188),
EMPTY_HOWTO (189),
EMPTY_HOWTO (190),
EMPTY_HOWTO (191),
EMPTY_HOWTO (192),
EMPTY_HOWTO (193),
EMPTY_HOWTO (194),
EMPTY_HOWTO (195),
EMPTY_HOWTO (196),
EMPTY_HOWTO (197),
EMPTY_HOWTO (198),
EMPTY_HOWTO (199),
EMPTY_HOWTO (200),
EMPTY_HOWTO (201),
EMPTY_HOWTO (202),
EMPTY_HOWTO (203),
EMPTY_HOWTO (204),
EMPTY_HOWTO (205),
EMPTY_HOWTO (206),
EMPTY_HOWTO (207),
EMPTY_HOWTO (208),
EMPTY_HOWTO (209),
EMPTY_HOWTO (210),
EMPTY_HOWTO (211),
EMPTY_HOWTO (212),
EMPTY_HOWTO (213),
EMPTY_HOWTO (214),
EMPTY_HOWTO (215),
EMPTY_HOWTO (216),
EMPTY_HOWTO (217),
EMPTY_HOWTO (218),
EMPTY_HOWTO (219),
EMPTY_HOWTO (220),
EMPTY_HOWTO (221),
EMPTY_HOWTO (222),
EMPTY_HOWTO (223),
EMPTY_HOWTO (224),
EMPTY_HOWTO (225),
EMPTY_HOWTO (226),
EMPTY_HOWTO (227),
EMPTY_HOWTO (228),
EMPTY_HOWTO (229),
EMPTY_HOWTO (230),
EMPTY_HOWTO (231),
EMPTY_HOWTO (232),
EMPTY_HOWTO (233),
EMPTY_HOWTO (234),
EMPTY_HOWTO (235),
EMPTY_HOWTO (236),
EMPTY_HOWTO (237),
EMPTY_HOWTO (238),
EMPTY_HOWTO (239),
EMPTY_HOWTO (240),
EMPTY_HOWTO (241),
EMPTY_HOWTO (242),
EMPTY_HOWTO (243),
EMPTY_HOWTO (244),
EMPTY_HOWTO (245),
EMPTY_HOWTO (246),
EMPTY_HOWTO (247),
EMPTY_HOWTO (248),
EMPTY_HOWTO (249),
EMPTY_HOWTO (250),
EMPTY_HOWTO (251),
EMPTY_HOWTO (252),
HOWTO (R_C6000_ALIGN, /* type */
0, /* rightshift */
0, /* 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_C6000_ALIGN", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_FPHEAD, /* type */
0, /* rightshift */
0, /* 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_C6000_FPHEAD", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
HOWTO (R_C6000_NOCMP, /* type */
0, /* rightshift */
0, /* 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_C6000_NOCMP", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE) /* pcrel_offset */
};
/* Map BFD relocations to ELF relocations. */
typedef struct
{
bfd_reloc_code_real_type bfd_reloc_val;
enum elf_tic6x_reloc_type elf_reloc_val;
} tic6x_reloc_map;
static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
{
{ BFD_RELOC_NONE, R_C6000_NONE },
{ BFD_RELOC_32, R_C6000_ABS32 },
{ BFD_RELOC_16, R_C6000_ABS16 },
{ BFD_RELOC_8, R_C6000_ABS8 },
{ BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
{ BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
{ BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
{ BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
{ BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
{ BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
{ BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
{ BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
{ BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
{ BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
{ BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
{ BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
{ BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
{ BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
{ BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
{ BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
{ BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
{ BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
{ BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
{ BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
{ BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
{ BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
{ BFD_RELOC_C6000_COPY, R_C6000_COPY },
{ BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
{ BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
{ BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
};
static reloc_howto_type *
elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
{
enum elf_tic6x_reloc_type elf_reloc_val;
reloc_howto_type *howto;
elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
if (elf32_tic6x_tdata (abfd)->use_rela_p)
howto = &elf32_tic6x_howto_table[elf_reloc_val];
else
howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
/* Some relocations are RELA-only; do not return them for
REL. */
if (howto->name == NULL)
howto = NULL;
return howto;
}
return NULL;
}
static reloc_howto_type *
elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
{
if (elf32_tic6x_tdata (abfd)->use_rela_p)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
if (elf32_tic6x_howto_table[i].name != NULL
&& strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
return &elf32_tic6x_howto_table[i];
}
else
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
if (elf32_tic6x_howto_table_rel[i].name != NULL
&& strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
return &elf32_tic6x_howto_table_rel[i];
}
return NULL;
}
static void
elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
Elf_Internal_Rela *elf_reloc)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (elf_reloc->r_info);
if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
bfd_reloc->howto = NULL;
else
bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
}
static void
elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
Elf_Internal_Rela *elf_reloc)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (elf_reloc->r_info);
if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
bfd_reloc->howto = NULL;
else
bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
}
void
elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
{
elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
}
static bfd_boolean
elf32_tic6x_mkobject (bfd *abfd)
{
bfd_boolean ret;
ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
TIC6X_ELF_DATA);
if (ret)
elf32_tic6x_set_use_rela_p (abfd, TRUE);
return ret;
}
static bfd_boolean
elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
{
bfd_boolean ret;
ret = _bfd_elf_new_section_hook (abfd, sec);
sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
return ret;
}
/* Return true if relocation REL against section SEC is a REL rather
than RELA relocation. RELOCS is the first relocation in the
section and ABFD is the bfd that contains SEC. */
static bfd_boolean
elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
const Elf_Internal_Rela *relocs,
const Elf_Internal_Rela *rel)
{
Elf_Internal_Shdr *rel_hdr;
const struct elf_backend_data *bed;
/* To determine which flavor of relocation this is, we depend on the
fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
rel_hdr = elf_section_data (sec)->rel.hdr;
if (rel_hdr == NULL)
return FALSE;
bed = get_elf_backend_data (abfd);
return ((size_t) (rel - relocs)
< NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
}
static bfd_boolean
elf32_tic6x_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;
bfd_boolean ok = TRUE;
symtab_hdr = & elf_symtab_hdr (input_bfd);
sym_hashes = elf_sym_hashes (input_bfd);
relend = relocs + input_section->reloc_count;
for (rel = relocs; rel < relend; rel ++)
{
int r_type;
unsigned long r_symndx;
arelent bfd_reloc;
reloc_howto_type *howto;
Elf_Internal_Sym *sym;
asection *sec;
struct elf_link_hash_entry *h;
bfd_vma relocation;
bfd_boolean unresolved_reloc;
bfd_reloc_status_type r;
struct bfd_link_hash_entry *sbh;
bfd_boolean is_rel;
r_type = ELF32_R_TYPE (rel->r_info);
r_symndx = ELF32_R_SYM (rel->r_info);
is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
relocs, rel);
if (is_rel)
elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
else
elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
howto = bfd_reloc.howto;
if (howto == NULL)
{
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
h = NULL;
sym = NULL;
sec = NULL;
unresolved_reloc = FALSE;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
}
else
{
bfd_boolean warned;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
unresolved_reloc, warned);
}
if (sec != NULL && elf_discarded_section (sec))
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
rel, relend, howto, contents);
if (info->relocatable)
{
if (is_rel
&& sym != NULL
&& ELF_ST_TYPE (sym->st_info) == STT_SECTION)
{
rel->r_addend = 0;
relocation = sec->output_offset + sym->st_value;
r = _bfd_relocate_contents (howto, input_bfd, relocation,
contents + rel->r_offset);
goto done_reloc;
}
continue;
}
switch (r_type)
{
case R_C6000_NONE:
case R_C6000_ALIGN:
case R_C6000_FPHEAD:
case R_C6000_NOCMP:
/* No action needed. */
continue;
case R_C6000_PCR_S21:
case R_C6000_PCR_S12:
case R_C6000_PCR_S10:
case R_C6000_PCR_S7:
/* Generic PC-relative handling produces a value relative to
the exact location of the relocation. Adjust it to be
relative to the start of the fetch packet instead. */
relocation += (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset) & 0x1f;
/* Fall through. */
case R_C6000_ABS32:
case R_C6000_ABS16:
case R_C6000_ABS8:
case R_C6000_ABS_S16:
case R_C6000_ABS_L16:
case R_C6000_ABS_H16:
/* Generic logic OK. */
break;
case R_C6000_SBR_U15_B:
case R_C6000_SBR_U15_H:
case R_C6000_SBR_U15_W:
case R_C6000_SBR_S16:
case R_C6000_SBR_L16_B:
case R_C6000_SBR_L16_H:
case R_C6000_SBR_L16_W:
case R_C6000_SBR_H16_B:
case R_C6000_SBR_H16_H:
case R_C6000_SBR_H16_W:
sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
FALSE, FALSE, TRUE);
if (sbh != NULL
&& (sbh->type == bfd_link_hash_defined
|| sbh->type == bfd_link_hash_defweak))
relocation -= (sbh->u.def.value
+ sbh->u.def.section->output_section->vma
+ sbh->u.def.section->output_offset);
else
{
(*_bfd_error_handler) (_("%B: SB-relative relocation but "
"__c6xabi_DSBT_BASE not defined"),
input_bfd);
ok = FALSE;
continue;
}
break;
case R_C6000_SBR_GOT_U15_W:
case R_C6000_SBR_GOT_L16_W:
case R_C6000_SBR_GOT_H16_W:
case R_C6000_DSBT_INDEX:
case R_C6000_PREL31:
/* Shared libraries and exception handling support not
implemented. */
(*_bfd_error_handler) (_("%B: relocation type %d not implemented"),
input_bfd, r_type);
ok = FALSE;
continue;
case R_C6000_COPY:
/* Invalid in relocatable object. */
default:
/* Unknown relocation. */
(*_bfd_error_handler) (_("%B: invalid relocation type %d"),
input_bfd, r_type);
ok = FALSE;
continue;
}
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
relocation, rel->r_addend);
done_reloc:
if (r == bfd_reloc_ok
&& howto->complain_on_overflow == complain_overflow_bitfield)
{
/* Generic overflow handling accepts cases the ABI says
should be rejected for R_C6000_ABS16 and
R_C6000_ABS8. */
bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
bfd_vma sbit = 1 << (howto->bitsize - 1);
bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
bfd_vma value_sbits = value & sbits;
if (value_sbits != 0
&& value_sbits != sbit
&& value_sbits != sbits)
r = bfd_reloc_overflow;
}
if (r != bfd_reloc_ok)
{
const char *name;
const char *error_message;
if (h != NULL)
name = h->root.root.string;
else
{
name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
return FALSE;
if (*name == '\0')
name = bfd_section_name (input_bfd, sec);
}
switch (r)
{
case bfd_reloc_overflow:
/* If the overflowing reloc was to an undefined symbol,
we have already printed one error message and there
is no point complaining again. */
if ((! h ||
h->root.type != bfd_link_hash_undefined)
&& (!((*info->callbacks->reloc_overflow)
(info, (h ? &h->root : NULL), name, howto->name,
(bfd_vma) 0, input_bfd, input_section,
rel->r_offset))))
return FALSE;
break;
case bfd_reloc_undefined:
if (!((*info->callbacks->undefined_symbol)
(info, name, input_bfd, input_section,
rel->r_offset, TRUE)))
return FALSE;
break;
case bfd_reloc_outofrange:
error_message = _("out of range");
goto common_error;
case bfd_reloc_notsupported:
error_message = _("unsupported relocation");
goto common_error;
case bfd_reloc_dangerous:
error_message = _("dangerous relocation");
goto common_error;
default:
error_message = _("unknown error");
/* Fall through. */
common_error:
BFD_ASSERT (error_message != NULL);
if (!((*info->callbacks->reloc_dangerous)
(info, error_message, input_bfd, input_section,
rel->r_offset)))
return FALSE;
break;
}
}
}
return ok;
}
static int
elf32_tic6x_obj_attrs_arg_type (int tag)
{
if (tag == Tag_ABI_compatibility)
return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
else if (tag & 1)
return ATTR_TYPE_FLAG_STR_VAL;
else
return ATTR_TYPE_FLAG_INT_VAL;
}
static int
elf32_tic6x_obj_attrs_order (int num)
{
if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
return Tag_ABI_conformance;
if ((num - 1) < Tag_ABI_conformance)
return num - 1;
return num;
}
static bfd_boolean
elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
{
if ((tag & 127) < 64)
{
_bfd_error_handler
(_("%B: error: unknown mandatory EABI object attribute %d"),
abfd, tag);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
else
{
_bfd_error_handler
(_("%B: warning: unknown EABI object attribute %d"),
abfd, tag);
return TRUE;
}
}
/* Merge the Tag_ISA attribute values ARCH1 and ARCH2
and return the merged value. At present, all merges succeed, so no
return value for errors is defined. */
int
elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
{
int min_arch, max_arch;
min_arch = (arch1 < arch2 ? arch1 : arch2);
max_arch = (arch1 > arch2 ? arch1 : arch2);
/* In most cases, the numerically greatest value is the correct
merged value, but merging C64 and C67 results in C674X. */
if ((min_arch == C6XABI_Tag_ISA_C67X
|| min_arch == C6XABI_Tag_ISA_C67XP)
&& (max_arch == C6XABI_Tag_ISA_C64X
|| max_arch == C6XABI_Tag_ISA_C64XP))
return C6XABI_Tag_ISA_C674X;
return max_arch;
}
/* Convert a Tag_ABI_array_object_alignment or
Tag_ABI_array_object_align_expected tag value TAG to a
corresponding alignment value; return the alignment, or -1 for an
unknown tag value. */
static int
elf32_tic6x_tag_to_array_alignment (int tag)
{
switch (tag)
{
case 0:
return 8;
case 1:
return 4;
case 2:
return 16;
default:
return -1;
}
}
/* Convert a Tag_ABI_array_object_alignment or
Tag_ABI_array_object_align_expected alignment ALIGN to a
corresponding tag value; return the tag value. */
static int
elf32_tic6x_array_alignment_to_tag (int align)
{
switch (align)
{
case 8:
return 0;
case 4:
return 1;
case 16:
return 2;
default:
abort ();
}
}
/* Merge attributes from IBFD and OBFD, returning TRUE if the merge
succeeded, FALSE otherwise. */
static bfd_boolean
elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd)
{
bfd_boolean result = TRUE;
obj_attribute *in_attr;
obj_attribute *out_attr;
int i;
int array_align_in, array_align_out, array_expect_in, array_expect_out;
if (!elf_known_obj_attributes_proc (obfd)[0].i)
{
/* This is the first object. Copy the attributes. */
_bfd_elf_copy_obj_attributes (ibfd, obfd);
out_attr = elf_known_obj_attributes_proc (obfd);
/* Use the Tag_null value to indicate the attributes have been
initialized. */
out_attr[0].i = 1;
return TRUE;
}
in_attr = elf_known_obj_attributes_proc (ibfd);
out_attr = elf_known_obj_attributes_proc (obfd);
/* No specification yet for handling of unknown attributes, so just
ignore them and handle known ones. */
if (out_attr[Tag_ABI_stack_align_preserved].i
< in_attr[Tag_ABI_stack_align_needed].i)
{
_bfd_error_handler
(_("error: %B requires more stack alignment than %B preserves"),
ibfd, obfd);
result = FALSE;
}
if (in_attr[Tag_ABI_stack_align_preserved].i
< out_attr[Tag_ABI_stack_align_needed].i)
{
_bfd_error_handler
(_("error: %B requires more stack alignment than %B preserves"),
obfd, ibfd);
result = FALSE;
}
array_align_in = elf32_tic6x_tag_to_array_alignment
(in_attr[Tag_ABI_array_object_alignment].i);
if (array_align_in == -1)
{
_bfd_error_handler
(_("error: unknown Tag_ABI_array_object_alignment value in %B"),
ibfd);
result = FALSE;
}
array_align_out = elf32_tic6x_tag_to_array_alignment
(out_attr[Tag_ABI_array_object_alignment].i);
if (array_align_out == -1)
{
_bfd_error_handler
(_("error: unknown Tag_ABI_array_object_alignment value in %B"),
obfd);
result = FALSE;
}
array_expect_in = elf32_tic6x_tag_to_array_alignment
(in_attr[Tag_ABI_array_object_align_expected].i);
if (array_expect_in == -1)
{
_bfd_error_handler
(_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
ibfd);
result = FALSE;
}
array_expect_out = elf32_tic6x_tag_to_array_alignment
(out_attr[Tag_ABI_array_object_align_expected].i);
if (array_expect_out == -1)
{
_bfd_error_handler
(_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
obfd);
result = FALSE;
}
if (array_align_out < array_expect_in)
{
_bfd_error_handler
(_("error: %B requires more array alignment than %B preserves"),
ibfd, obfd);
result = FALSE;
}
if (array_align_in < array_expect_out)
{
_bfd_error_handler
(_("error: %B requires more array alignment than %B preserves"),
obfd, ibfd);
result = FALSE;
}
for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
{
switch (i)
{
case Tag_ISA:
out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
out_attr[i].i);
break;
case Tag_ABI_wchar_t:
if (out_attr[i].i == 0)
out_attr[i].i = in_attr[i].i;
if (out_attr[i].i != 0
&& in_attr[i].i != 0
&& out_attr[i].i != in_attr[i].i)
{
_bfd_error_handler
(_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
}
break;
case Tag_ABI_stack_align_needed:
if (out_attr[i].i < in_attr[i].i)
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_stack_align_preserved:
if (out_attr[i].i > in_attr[i].i)
out_attr[i].i = in_attr[i].i;
break;
case Tag_ABI_DSBT:
if (out_attr[i].i != in_attr[i].i)
{
_bfd_error_handler
(_("warning: %B and %B differ in whether code is "
"compiled for DSBT"),
obfd, ibfd);
}
break;
case Tag_ABI_PID:
if (out_attr[i].i != in_attr[i].i)
{
_bfd_error_handler
(_("warning: %B and %B differ in position-dependence of "
"data addressing"),
obfd, ibfd);
}
break;
case Tag_ABI_PIC:
if (out_attr[i].i != in_attr[i].i)
{
_bfd_error_handler
(_("warning: %B and %B differ in position-dependence of "
"code addressing"),
obfd, ibfd);
}
break;
case Tag_ABI_array_object_alignment:
if (array_align_out != -1
&& array_align_in != -1
&& array_align_out > array_align_in)
out_attr[i].i
= elf32_tic6x_array_alignment_to_tag (array_align_in);
break;
case Tag_ABI_array_object_align_expected:
if (array_expect_out != -1
&& array_expect_in != -1
&& array_expect_out < array_expect_in)
out_attr[i].i
= elf32_tic6x_array_alignment_to_tag (array_expect_in);
break;
case Tag_ABI_conformance:
/* Merging for this attribute is not specified. As on ARM,
treat a missing attribute as no claim to conform and only
merge identical values. */
if (out_attr[i].s == NULL
|| in_attr[i].s == NULL
|| strcmp (out_attr[i].s,
in_attr[i].s) != 0)
out_attr[i].s = NULL;
break;
case Tag_ABI_compatibility:
/* Merged in _bfd_elf_merge_object_attributes. */
break;
default:
result
= result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
break;
}
if (in_attr[i].type && !out_attr[i].type)
out_attr[i].type = in_attr[i].type;
}
/* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
if (!_bfd_elf_merge_object_attributes (ibfd, obfd))
return FALSE;
result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
return result;
}
static bfd_boolean
elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
{
if (!_bfd_generic_verify_endian_match (ibfd, obfd))
return FALSE;
if (!elf32_tic6x_merge_attributes (ibfd, obfd))
return FALSE;
return TRUE;
}
#define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec
#define TARGET_LITTLE_NAME "elf32-tic6x-le"
#define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec
#define TARGET_BIG_NAME "elf32-tic6x-be"
#define ELF_ARCH bfd_arch_tic6x
#define ELF_TARGET_ID TIC6X_ELF_DATA
#define ELF_MACHINE_CODE EM_TI_C6000
#define ELF_MAXPAGESIZE 1
#define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
#define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
#define bfd_elf32_mkobject elf32_tic6x_mkobject
#define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
#define elf_backend_can_gc_sections 1
#define elf_backend_default_use_rela_p 1
#define elf_backend_may_use_rel_p 1
#define elf_backend_may_use_rela_p 1
#define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
#define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
#define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
#define elf_backend_obj_attrs_section ".c6xabi.attributes"
#define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
#define elf_backend_obj_attrs_vendor "c6xabi"
#define elf_backend_rela_normal 1
#define elf_backend_relocate_section elf32_tic6x_relocate_section
#define elf_info_to_howto elf32_tic6x_info_to_howto
#define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
#include "elf32-target.h"
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