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authorDan Albert <danalbert@google.com>2015-06-17 15:33:58 -0700
committerDan Albert <danalbert@google.com>2015-06-17 15:33:58 -0700
commit7a1d76c6c5b354abbba43308d5061eb6ff96d3ea (patch)
tree78a639d039e517565afa35d7af021a6967bec0d9 /binutils-2.19/bfd/elf32-cr16.c
parentc39479f4ab4d372b518957871e1f205a03e7c3d6 (diff)
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Remove old versions of binutils.
Change-Id: If634d8d30cfa8c88ca3ba59691a0df4ee5596f85
Diffstat (limited to 'binutils-2.19/bfd/elf32-cr16.c')
-rw-r--r--binutils-2.19/bfd/elf32-cr16.c1588
1 files changed, 0 insertions, 1588 deletions
diff --git a/binutils-2.19/bfd/elf32-cr16.c b/binutils-2.19/bfd/elf32-cr16.c
deleted file mode 100644
index 84130b0..0000000
--- a/binutils-2.19/bfd/elf32-cr16.c
+++ /dev/null
@@ -1,1588 +0,0 @@
-/* BFD back-end for National Semiconductor's CR16 ELF
- Copyright 2007 Free Software Foundation, Inc.
- Written by M R Swami Reddy.
-
- 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 "bfdlink.h"
-#include "libbfd.h"
-#include "libiberty.h"
-#include "elf-bfd.h"
-#include "elf/cr16.h"
-
-/* cr16_reloc_map array maps BFD relocation enum into a CRGAS relocation type. */
-
-struct cr16_reloc_map
-{
- bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */
- unsigned short cr16_reloc_type; /* CR16 relocation type. */
-};
-
-static const struct cr16_reloc_map cr16_reloc_map[R_CR16_MAX] =
-{
- {BFD_RELOC_NONE, R_CR16_NONE},
- {BFD_RELOC_CR16_NUM8, R_CR16_NUM8},
- {BFD_RELOC_CR16_NUM16, R_CR16_NUM16},
- {BFD_RELOC_CR16_NUM32, R_CR16_NUM32},
- {BFD_RELOC_CR16_NUM32a, R_CR16_NUM32a},
- {BFD_RELOC_CR16_REGREL4, R_CR16_REGREL4},
- {BFD_RELOC_CR16_REGREL4a, R_CR16_REGREL4a},
- {BFD_RELOC_CR16_REGREL14, R_CR16_REGREL14},
- {BFD_RELOC_CR16_REGREL14a, R_CR16_REGREL14a},
- {BFD_RELOC_CR16_REGREL16, R_CR16_REGREL16},
- {BFD_RELOC_CR16_REGREL20, R_CR16_REGREL20},
- {BFD_RELOC_CR16_REGREL20a, R_CR16_REGREL20a},
- {BFD_RELOC_CR16_ABS20, R_CR16_ABS20},
- {BFD_RELOC_CR16_ABS24, R_CR16_ABS24},
- {BFD_RELOC_CR16_IMM4, R_CR16_IMM4},
- {BFD_RELOC_CR16_IMM8, R_CR16_IMM8},
- {BFD_RELOC_CR16_IMM16, R_CR16_IMM16},
- {BFD_RELOC_CR16_IMM20, R_CR16_IMM20},
- {BFD_RELOC_CR16_IMM24, R_CR16_IMM24},
- {BFD_RELOC_CR16_IMM32, R_CR16_IMM32},
- {BFD_RELOC_CR16_IMM32a, R_CR16_IMM32a},
- {BFD_RELOC_CR16_DISP4, R_CR16_DISP4},
- {BFD_RELOC_CR16_DISP8, R_CR16_DISP8},
- {BFD_RELOC_CR16_DISP16, R_CR16_DISP16},
- {BFD_RELOC_CR16_DISP24, R_CR16_DISP24},
- {BFD_RELOC_CR16_DISP24a, R_CR16_DISP24a},
- {BFD_RELOC_CR16_SWITCH8, R_CR16_SWITCH8},
- {BFD_RELOC_CR16_SWITCH16, R_CR16_SWITCH16},
- {BFD_RELOC_CR16_SWITCH32, R_CR16_SWITCH32}
-};
-
-static reloc_howto_type cr16_elf_howto_table[] =
-{
- HOWTO (R_CR16_NONE, /* type */
- 0, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_NONE", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_NUM8, /* type */
- 0, /* rightshift */
- 0, /* size */
- 8, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_NUM8", /* name */
- FALSE, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_NUM16, /* type */
- 0, /* rightshift */
- 1, /* size */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_NUM16", /* name */
- FALSE, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_NUM32, /* type */
- 0, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_NUM32", /* name */
- FALSE, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_NUM32a, /* type */
- 1, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_NUM32a", /* name */
- FALSE, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_REGREL4, /* type */
- 0, /* rightshift */
- 0, /* size */
- 4, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_REGREL4", /* name */
- FALSE, /* partial_inplace */
- 0xf, /* src_mask */
- 0xf, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_REGREL4a, /* type */
- 0, /* rightshift */
- 0, /* size */
- 4, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_REGREL4a", /* name */
- FALSE, /* partial_inplace */
- 0xf, /* src_mask */
- 0xf, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_REGREL14, /* type */
- 0, /* rightshift */
- 1, /* size */
- 14, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_REGREL14", /* name */
- FALSE, /* partial_inplace */
- 0x3fff, /* src_mask */
- 0x3fff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_REGREL14a, /* type */
- 0, /* rightshift */
- 1, /* size */
- 14, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_REGREL14a", /* name */
- FALSE, /* partial_inplace */
- 0x3fff, /* src_mask */
- 0x3fff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_REGREL16, /* type */
- 0, /* rightshift */
- 1, /* size */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_REGREL16", /* name */
- FALSE, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_REGREL20, /* type */
- 0, /* rightshift */
- 2, /* size */
- 20, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_REGREL20", /* name */
- FALSE, /* partial_inplace */
- 0xfffff, /* src_mask */
- 0xfffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_REGREL20a, /* type */
- 0, /* rightshift */
- 2, /* size */
- 20, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_REGREL20a", /* name */
- FALSE, /* partial_inplace */
- 0xfffff, /* src_mask */
- 0xfffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_ABS20, /* type */
- 0, /* rightshift */
- 2, /* size */
- 20, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_ABS20", /* name */
- FALSE, /* partial_inplace */
- 0xfffff, /* src_mask */
- 0xfffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_ABS24, /* type */
- 0, /* rightshift */
- 2, /* size */
- 24, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_ABS24", /* name */
- FALSE, /* partial_inplace */
- 0xffffff, /* src_mask */
- 0xffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_IMM4, /* type */
- 0, /* rightshift */
- 0, /* size */
- 4, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_IMM4", /* name */
- FALSE, /* partial_inplace */
- 0xf, /* src_mask */
- 0xf, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_IMM8, /* type */
- 0, /* rightshift */
- 0, /* size */
- 8, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_IMM8", /* name */
- FALSE, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_IMM16, /* type */
- 0, /* rightshift */
- 1, /* size */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_IMM16", /* name */
- FALSE, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_IMM20, /* type */
- 0, /* rightshift */
- 2, /* size */
- 20, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_IMM20", /* name */
- FALSE, /* partial_inplace */
- 0xfffff, /* src_mask */
- 0xfffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_IMM24, /* type */
- 0, /* rightshift */
- 2, /* size */
- 24, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_IMM24", /* name */
- FALSE, /* partial_inplace */
- 0xffffff, /* src_mask */
- 0xffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_IMM32, /* type */
- 0, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_IMM32", /* name */
- FALSE, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_IMM32a, /* type */
- 1, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_IMM32a", /* name */
- FALSE, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_DISP4, /* type */
- 1, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 4, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_DISP4", /* name */
- FALSE, /* partial_inplace */
- 0xf, /* src_mask */
- 0xf, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_DISP8, /* type */
- 1, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_DISP8", /* name */
- FALSE, /* partial_inplace */
- 0x1ff, /* src_mask */
- 0x1ff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_DISP16, /* type */
- 0, /* rightshift REVIITS: To sync with WinIDEA*/
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_DISP16", /* name */
- FALSE, /* partial_inplace */
- 0x1ffff, /* src_mask */
- 0x1ffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- /* REVISIT: DISP24 should be left-shift by 2 as per ISA doc
- but its not done, to sync with WinIDEA and CR16 4.1 tools */
- HOWTO (R_CR16_DISP24, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 24, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_DISP24", /* name */
- FALSE, /* partial_inplace */
- 0x1ffffff, /* src_mask */
- 0x1ffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_DISP24a, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 24, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_DISP24a", /* name */
- FALSE, /* partial_inplace */
- 0xffffff, /* src_mask */
- 0xffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- /* An 8 bit switch table entry. This is generated for an expression
- such as ``.byte L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_CR16_SWITCH8, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_SWITCH8", /* name */
- FALSE, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- TRUE), /* pcrel_offset */
-
- /* A 16 bit switch table entry. This is generated for an expression
- such as ``.word L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_CR16_SWITCH16, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_SWITCH16", /* name */
- FALSE, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- TRUE), /* pcrel_offset */
-
- /* A 32 bit switch table entry. This is generated for an expression
- such as ``.long L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_CR16_SWITCH32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CR16_SWITCH32", /* name */
- FALSE, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- TRUE) /* pcrel_offset */
-};
-
-/* Retrieve a howto ptr using a BFD reloc_code. */
-
-static reloc_howto_type *
-elf_cr16_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- bfd_reloc_code_real_type code)
-{
- unsigned int i;
-
- for (i = 0; i < R_CR16_MAX; i++)
- if (code == cr16_reloc_map[i].bfd_reloc_enum)
- return &cr16_elf_howto_table[cr16_reloc_map[i].cr16_reloc_type];
-
- _bfd_error_handler ("Unsupported CR16 relocation type: 0x%x\n", code);
- return NULL;
-}
-
-static reloc_howto_type *
-elf_cr16_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- const char *r_name)
-{
- unsigned int i;
-
- for (i = 0; ARRAY_SIZE (cr16_elf_howto_table); i++)
- if (cr16_elf_howto_table[i].name != NULL
- && strcasecmp (cr16_elf_howto_table[i].name, r_name) == 0)
- return cr16_elf_howto_table + i;
-
- return NULL;
-}
-
-/* Retrieve a howto ptr using an internal relocation entry. */
-
-static void
-elf_cr16_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
- Elf_Internal_Rela *dst)
-{
- unsigned int r_type = ELF32_R_TYPE (dst->r_info);
-
- BFD_ASSERT (r_type < (unsigned int) R_CR16_MAX);
- cache_ptr->howto = &cr16_elf_howto_table[r_type];
-}
-
-/* Perform a relocation as part of a final link. */
-
-static bfd_reloc_status_type
-cr16_elf_final_link_relocate (reloc_howto_type *howto,
- bfd *input_bfd,
- bfd *output_bfd ATTRIBUTE_UNUSED,
- asection *input_section,
- bfd_byte *contents,
- bfd_vma offset,
- bfd_vma Rvalue,
- bfd_vma addend,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- int is_local ATTRIBUTE_UNUSED)
-{
- unsigned short r_type = howto->type;
- bfd_byte *hit_data = contents + offset;
- bfd_vma reloc_bits, check, Rvalue1;
-
- switch (r_type)
- {
- case R_CR16_IMM4:
- case R_CR16_IMM20:
- case R_CR16_ABS20:
- break;
-
- case R_CR16_IMM8:
- case R_CR16_IMM16:
- case R_CR16_IMM32:
- case R_CR16_IMM32a:
- case R_CR16_REGREL4:
- case R_CR16_REGREL4a:
- case R_CR16_REGREL14:
- case R_CR16_REGREL14a:
- case R_CR16_REGREL16:
- case R_CR16_REGREL20:
- case R_CR16_ABS24:
- case R_CR16_DISP16:
- case R_CR16_DISP24:
- /* 'hit_data' is relative to the start of the instruction, not the
- relocation offset. Advance it to account for the exact offset. */
- hit_data += 2;
- break;
-
- case R_CR16_NONE:
- return bfd_reloc_ok;
- break;
-
- case R_CR16_DISP4:
- if (is_local)
- Rvalue += -1;
- break;
-
- case R_CR16_DISP8:
- case R_CR16_DISP24a:
- if (is_local)
- Rvalue -= -1;
- break;
-
- case R_CR16_SWITCH8:
- case R_CR16_SWITCH16:
- case R_CR16_SWITCH32:
- /* We only care about the addend, where the difference between
- expressions is kept. */
- Rvalue = 0;
-
- default:
- break;
- }
-
- if (howto->pc_relative)
- {
- /* Subtract the address of the section containing the location. */
- Rvalue -= (input_section->output_section->vma
- + input_section->output_offset);
- /* Subtract the position of the location within the section. */
- Rvalue -= offset;
- }
-
- /* Add in supplied addend. */
- Rvalue += addend;
-
- /* Complain if the bitfield overflows, whether it is considered
- as signed or unsigned. */
- check = Rvalue >> howto->rightshift;
-
- /* Assumes two's complement. This expression avoids
- overflow if howto->bitsize is the number of bits in
- bfd_vma. */
- reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
-
- if (((bfd_vma) check & ~reloc_bits) != 0
- && (((bfd_vma) check & ~reloc_bits)
- != (-(bfd_vma) 1 & ~reloc_bits)))
- {
- /* The above right shift is incorrect for a signed
- value. See if turning on the upper bits fixes the
- overflow. */
- if (howto->rightshift && (bfd_signed_vma) Rvalue < 0)
- {
- check |= ((bfd_vma) - 1
- & ~((bfd_vma) - 1
- >> howto->rightshift));
-
- if (((bfd_vma) check & ~reloc_bits)
- != (-(bfd_vma) 1 & ~reloc_bits))
- return bfd_reloc_overflow;
- }
- else
- return bfd_reloc_overflow;
- }
-
- /* Drop unwanted bits from the value we are relocating to. */
- Rvalue >>= (bfd_vma) howto->rightshift;
-
- /* Apply dst_mask to select only relocatable part of the insn. */
- Rvalue &= howto->dst_mask;
-
- switch (howto->size)
- {
- case 0:
- if (r_type == R_CR16_DISP8)
- {
- Rvalue1 = bfd_get_16 (input_bfd, hit_data);
- Rvalue = ((Rvalue1 & 0xf000) | ((Rvalue << 4) & 0xf00)
- | (Rvalue1 & 0x00f0) | (Rvalue & 0xf));
- bfd_put_16 (input_bfd, Rvalue, hit_data);
- }
- else if (r_type == R_CR16_IMM4)
- {
- Rvalue1 = bfd_get_16 (input_bfd, hit_data);
- Rvalue = (((Rvalue1 & 0xff) << 8) | ((Rvalue << 4) & 0xf0)
- | ((Rvalue1 & 0x0f00) >> 8));
- bfd_put_16 (input_bfd, Rvalue, hit_data);
- }
- else if (r_type == R_CR16_DISP4)
- {
- Rvalue1 = bfd_get_16 (input_bfd, hit_data);
- Rvalue = (Rvalue1 | ((Rvalue & 0xf) << 4));
- bfd_put_16 (input_bfd, Rvalue, hit_data);
- }
- else
- {
- bfd_put_8 (input_bfd, (unsigned char) Rvalue, hit_data);
- }
- break;
-
- case 1:
- if (r_type == R_CR16_DISP16)
- {
- Rvalue |= (bfd_get_16 (input_bfd, hit_data));
- Rvalue = ((Rvalue & 0xfffe) | ((Rvalue >> 16) & 0x1));
- }
-
- bfd_put_16 (input_bfd, Rvalue, hit_data);
- break;
-
- case 2:
- if ((r_type == R_CR16_ABS20) || (r_type == R_CR16_IMM20))
- {
- bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
- | ((Rvalue >> 16) & 0xf), hit_data);
- bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
- }
- else
- {
- if (r_type == R_CR16_ABS24)
- {
- Rvalue = ((((Rvalue >> 20)& 0xf) | (((Rvalue >> 16) & 0xf) << 8)
- | (bfd_get_16 (input_bfd, hit_data)))
- | ((Rvalue & 0xffff) << 16));
- }
- if (r_type == R_CR16_DISP24)
- {
- Rvalue = ((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf) << 8)
- | (bfd_get_16 (input_bfd, hit_data)))
- | (((Rvalue & 0xfffe)
- | ((Rvalue >> 24) & 0x1)) << 16));
- }
- else if ((r_type == R_CR16_IMM32) ||(r_type == R_CR16_IMM32a))
- {
- Rvalue = (((Rvalue >> 16)& 0xffff)
- | (bfd_get_16 (input_bfd, hit_data)))
- | ((Rvalue & 0xffff) << 16);
- }
- else if (r_type == R_CR16_DISP24a)
- {
- Rvalue = (((Rvalue & 0xfffffe) | (Rvalue >> 23)));
- Rvalue = ((Rvalue >> 16) & 0xff) | ((Rvalue & 0xffff) << 16)
- | (bfd_get_32 (input_bfd, hit_data));
- }
-
- bfd_put_32 (input_bfd, Rvalue, hit_data);
- }
- break;
-
- default:
- return bfd_reloc_notsupported;
- }
-
- return bfd_reloc_ok;
-}
-
-/* Delete some bytes from a section while relaxing. */
-
-static bfd_boolean
-elf32_cr16_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd,
- asection *sec, bfd_vma addr, int count)
-{
- Elf_Internal_Shdr *symtab_hdr;
- unsigned int sec_shndx;
- bfd_byte *contents;
- Elf_Internal_Rela *irel, *irelend;
- Elf_Internal_Rela *irelalign;
- bfd_vma toaddr;
- Elf_Internal_Sym *isym;
- Elf_Internal_Sym *isymend;
- struct elf_link_hash_entry **sym_hashes;
- struct elf_link_hash_entry **end_hashes;
- struct elf_link_hash_entry **start_hashes;
- unsigned int symcount;
-
- sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
-
- contents = elf_section_data (sec)->this_hdr.contents;
-
- /* The deletion must stop at the next ALIGN reloc for an aligment
- power larger than the number of bytes we are deleting. */
- irelalign = NULL;
- toaddr = sec->size;
-
- irel = elf_section_data (sec)->relocs;
- irelend = irel + sec->reloc_count;
-
- /* Actually delete the bytes. */
- memmove (contents + addr, contents + addr + count,
- (size_t) (toaddr - addr - count));
- sec->size -= count;
-
- /* Adjust all the relocs. */
- for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
- /* Get the new reloc address. */
- if ((irel->r_offset > addr && irel->r_offset < toaddr))
- irel->r_offset -= count;
-
- /* Adjust the local symbols defined in this section. */
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- isym = (Elf_Internal_Sym *) symtab_hdr->contents;
- for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
- {
- if (isym->st_shndx == sec_shndx
- && isym->st_value > addr
- && isym->st_value < toaddr)
- {
- /* Adjust the addend of SWITCH relocations in this section,
- which reference this local symbol. */
- for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
- {
- unsigned long r_symndx;
- Elf_Internal_Sym *rsym;
- bfd_vma addsym, subsym;
-
- /* Skip if not a SWITCH relocation. */
- if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH8
- && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH16
- && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH32)
- continue;
-
- r_symndx = ELF32_R_SYM (irel->r_info);
- rsym = (Elf_Internal_Sym *) symtab_hdr->contents + r_symndx;
-
- /* Skip if not the local adjusted symbol. */
- if (rsym != isym)
- continue;
-
- addsym = isym->st_value;
- subsym = addsym - irel->r_addend;
-
- /* Fix the addend only when -->> (addsym > addr >= subsym). */
- if (subsym <= addr)
- irel->r_addend -= count;
- else
- continue;
- }
-
- isym->st_value -= count;
- }
- }
-
- /* Now adjust the global symbols defined in this section. */
- symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- - symtab_hdr->sh_info);
- sym_hashes = start_hashes = elf_sym_hashes (abfd);
- end_hashes = sym_hashes + symcount;
-
- for (; sym_hashes < end_hashes; sym_hashes++)
- {
- struct elf_link_hash_entry *sym_hash = *sym_hashes;
-
- /* The '--wrap SYMBOL' option is causing a pain when the object file,
- containing the definition of __wrap_SYMBOL, includes a direct
- call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference
- the same symbol (which is __wrap_SYMBOL), but still exist as two
- different symbols in 'sym_hashes', we don't want to adjust
- the global symbol __wrap_SYMBOL twice.
- This check is only relevant when symbols are being wrapped. */
- if (link_info->wrap_hash != NULL)
- {
- struct elf_link_hash_entry **cur_sym_hashes;
-
- /* Loop only over the symbols whom been already checked. */
- for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes;
- cur_sym_hashes++)
- /* If the current symbol is identical to 'sym_hash', that means
- the symbol was already adjusted (or at least checked). */
- if (*cur_sym_hashes == sym_hash)
- break;
-
- /* Don't adjust the symbol again. */
- if (cur_sym_hashes < sym_hashes)
- continue;
- }
-
- if ((sym_hash->root.type == bfd_link_hash_defined
- || sym_hash->root.type == bfd_link_hash_defweak)
- && sym_hash->root.u.def.section == sec
- && sym_hash->root.u.def.value > addr
- && sym_hash->root.u.def.value < toaddr)
- sym_hash->root.u.def.value -= count;
- }
-
- return TRUE;
-}
-
-/* Relocate a CR16 ELF section. */
-
-static bfd_boolean
-elf32_cr16_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, *relend;
-
- if (info->relocatable)
- return TRUE;
-
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (input_bfd);
-
- rel = relocs;
- relend = relocs + input_section->reloc_count;
- for (; rel < relend; rel++)
- {
- int r_type;
- 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;
-
- r_symndx = ELF32_R_SYM (rel->r_info);
- r_type = ELF32_R_TYPE (rel->r_info);
- howto = cr16_elf_howto_table + (r_type);
-
- h = NULL;
- sym = NULL;
- sec = NULL;
- 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 unresolved_reloc, warned;
-
- RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
- r_symndx, symtab_hdr, sym_hashes,
- h, sec, relocation,
- unresolved_reloc, warned);
- }
-
- r = cr16_elf_final_link_relocate (howto, input_bfd, output_bfd,
- input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend,
- info, sec, h == NULL);
-
- if (r != bfd_reloc_ok)
- {
- const char *name;
- const char *msg = NULL;
-
- 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 || *name == '\0')
- name = bfd_section_name (input_bfd, sec);
- }
-
- switch (r)
- {
- case 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;
- 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:
- msg = _("internal error: out of range error");
- goto common_error;
-
- case bfd_reloc_notsupported:
- msg = _("internal error: unsupported relocation error");
- goto common_error;
-
- case bfd_reloc_dangerous:
- msg = _("internal error: dangerous error");
- goto common_error;
-
- default:
- msg = _("internal error: unknown error");
- /* Fall through. */
-
- common_error:
- if (!((*info->callbacks->warning)
- (info, msg, name, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
- break;
- }
- }
- }
-
- return TRUE;
-}
-
-/* This is a version of bfd_generic_get_relocated_section_contents
- which uses elf32_cr16_relocate_section. */
-
-static bfd_byte *
-elf32_cr16_get_relocated_section_contents (bfd *output_bfd,
- struct bfd_link_info *link_info,
- struct bfd_link_order *link_order,
- bfd_byte *data,
- bfd_boolean relocatable,
- asymbol **symbols)
-{
- Elf_Internal_Shdr *symtab_hdr;
- asection *input_section = link_order->u.indirect.section;
- bfd *input_bfd = input_section->owner;
- asection **sections = NULL;
- Elf_Internal_Rela *internal_relocs = NULL;
- Elf_Internal_Sym *isymbuf = NULL;
-
- /* We only need to handle the case of relaxing, or of having a
- particular set of section contents, specially. */
- if (relocatable
- || elf_section_data (input_section)->this_hdr.contents == NULL)
- return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
- link_order, data,
- relocatable,
- symbols);
-
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
-
- memcpy (data, elf_section_data (input_section)->this_hdr.contents,
- (size_t) input_section->size);
-
- if ((input_section->flags & SEC_RELOC) != 0
- && input_section->reloc_count > 0)
- {
- Elf_Internal_Sym *isym;
- Elf_Internal_Sym *isymend;
- asection **secpp;
- bfd_size_type amt;
-
- internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section,
- NULL, NULL, FALSE);
- if (internal_relocs == NULL)
- goto error_return;
-
- if (symtab_hdr->sh_info != 0)
- {
- isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- if (isymbuf == NULL)
- isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
- symtab_hdr->sh_info, 0,
- NULL, NULL, NULL);
- if (isymbuf == NULL)
- goto error_return;
- }
-
- amt = symtab_hdr->sh_info;
- amt *= sizeof (asection *);
- sections = bfd_malloc (amt);
- if (sections == NULL && amt != 0)
- goto error_return;
-
- isymend = isymbuf + symtab_hdr->sh_info;
- for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
- {
- asection *isec;
-
- if (isym->st_shndx == SHN_UNDEF)
- isec = bfd_und_section_ptr;
- else if (isym->st_shndx == SHN_ABS)
- isec = bfd_abs_section_ptr;
- else if (isym->st_shndx == SHN_COMMON)
- isec = bfd_com_section_ptr;
- else
- isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
-
- *secpp = isec;
- }
-
- if (! elf32_cr16_relocate_section (output_bfd, link_info, input_bfd,
- input_section, data, internal_relocs,
- isymbuf, sections))
- goto error_return;
-
- if (sections != NULL)
- free (sections);
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (elf_section_data (input_section)->relocs != internal_relocs)
- free (internal_relocs);
- }
-
- return data;
-
- error_return:
- if (sections != NULL)
- free (sections);
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (internal_relocs != NULL
- && elf_section_data (input_section)->relocs != internal_relocs)
- free (internal_relocs);
- return NULL;
-}
-
-/* This function handles relaxing for the CR16.
-
- There's quite a few relaxing opportunites available on the CR16:
-
- * bcond:24 -> bcond:16 2 bytes
- * bcond:16 -> bcond:8 2 bytes
- * arithmetic imm32 -> arithmetic imm20/imm16 2 bytes
- * arithmetic imm20/imm16 -> arithmetic imm4 2 bytes
-
- Symbol- and reloc-reading infrastructure copied from elf-m10200.c. */
-
-static bfd_boolean
-elf32_cr16_relax_section (bfd *abfd, asection *sec,
- struct bfd_link_info *link_info, bfd_boolean *again)
-{
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *irel, *irelend;
- bfd_byte *contents = NULL;
- Elf_Internal_Sym *isymbuf = NULL;
-
- /* Assume nothing changes. */
- *again = FALSE;
-
- /* We don't have to do anything for a relocatable link, if
- this section does not have relocs, or if this is not a
- code section. */
- if (link_info->relocatable
- || (sec->flags & SEC_RELOC) == 0
- || sec->reloc_count == 0
- || (sec->flags & SEC_CODE) == 0)
- return TRUE;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
-
- /* Get a copy of the native relocations. */
- internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
- link_info->keep_memory);
- if (internal_relocs == NULL)
- goto error_return;
-
- /* Walk through them looking for relaxing opportunities. */
- irelend = internal_relocs + sec->reloc_count;
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- bfd_vma symval;
-
- /* If this isn't something that can be relaxed, then ignore
- this reloc. */
- if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP16
- && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP24
- && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM32
- && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM20
- && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM16)
- continue;
-
- /* Get the section contents if we haven't done so already. */
- if (contents == NULL)
- {
- /* Get cached copy if it exists. */
- if (elf_section_data (sec)->this_hdr.contents != NULL)
- contents = elf_section_data (sec)->this_hdr.contents;
- /* Go get them off disk. */
- else if (!bfd_malloc_and_get_section (abfd, sec, &contents))
- goto error_return;
- }
-
- /* Read this BFD's local symbols if we haven't done so already. */
- if (isymbuf == NULL && symtab_hdr->sh_info != 0)
- {
- isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- if (isymbuf == NULL)
- isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
- symtab_hdr->sh_info, 0,
- NULL, NULL, NULL);
- if (isymbuf == NULL)
- goto error_return;
- }
-
- /* Get the value of the symbol referred to by the reloc. */
- if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
- {
- /* A local symbol. */
- Elf_Internal_Sym *isym;
- asection *sym_sec;
-
- isym = isymbuf + ELF32_R_SYM (irel->r_info);
- if (isym->st_shndx == SHN_UNDEF)
- sym_sec = bfd_und_section_ptr;
- else if (isym->st_shndx == SHN_ABS)
- sym_sec = bfd_abs_section_ptr;
- else if (isym->st_shndx == SHN_COMMON)
- sym_sec = bfd_com_section_ptr;
- else
- sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
- symval = (isym->st_value
- + sym_sec->output_section->vma
- + sym_sec->output_offset);
- }
- else
- {
- unsigned long indx;
- struct elf_link_hash_entry *h;
-
- /* An external symbol. */
- indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
- h = elf_sym_hashes (abfd)[indx];
- BFD_ASSERT (h != NULL);
-
- if (h->root.type != bfd_link_hash_defined
- && h->root.type != bfd_link_hash_defweak)
- /* This appears to be a reference to an undefined
- symbol. Just ignore it--it will be caught by the
- regular reloc processing. */
- continue;
-
- symval = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- }
-
- /* For simplicity of coding, we are going to modify the section
- contents, the section relocs, and the BFD symbol table. We
- must tell the rest of the code not to free up this
- information. It would be possible to instead create a table
- of changes which have to be made, as is done in coff-mips.c;
- that would be more work, but would require less memory when
- the linker is run. */
-
- /* Try to turn a 24 branch/call into a 16bit relative
- branch/call. */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP24)
- {
- bfd_vma value = symval;
-
- /* Deal with pc-relative gunk. */
- value -= (sec->output_section->vma + sec->output_offset);
- value -= irel->r_offset;
- value += irel->r_addend;
-
- /* See if the value will fit in 16 bits, note the high value is
- 0xfffe + 2 as the target will be two bytes closer if we are
- able to relax. */
- if ((long) value < 0x10000 && (long) value > -0x10002)
- {
- unsigned int code;
-
- /* Get the opcode. */
- code = (unsigned int) bfd_get_32 (abfd, contents + irel->r_offset);
-
- /* Verify it's a 'bcond' and fix the opcode. */
- if ((code & 0xffff) == 0x0010)
- {
- bfd_put_16 (abfd, 0x1800 | ((0xf & (code >> 20)) << 4), contents + irel->r_offset);
- bfd_put_16 (abfd, value, contents + irel->r_offset + 2);
- }
- else
- continue;
-
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
-
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CR16_DISP16);
-
- /* Delete two bytes of data. */
- if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
-
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
-
- /* Try to turn a 16-bit pc-relative branch into an
- 8-bit pc-relative branch. */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP16)
- {
- bfd_vma value = symval;
-
- /* Deal with pc-relative gunk. */
- value -= (sec->output_section->vma + sec->output_offset);
- value -= irel->r_offset;
- value += irel->r_addend;
-
- /* See if the value will fit in 8 bits, note the high value is
- 0xfc + 2 as the target will be two bytes closer if we are
- able to relax. */
- if ((long) value < 0xfe && (long) value > -0x100)
- {
- unsigned short code;
-
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
-
- /* Verify it's a 'bcond' opcode. */
- if ((code & 0xff00) == 0x1800)
- {
- bfd_put_8 (abfd, 0x1 | ((0xf & (code >> 4)) << 4), contents + irel->r_offset);
- bfd_put_8 (abfd, value, contents + irel->r_offset + 2);
- }
- else
- continue;
-
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
-
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CR16_DISP8);
-
- /* Delete two bytes of data. */
- if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
-
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
-
- /* Try to turn a 32bit immediate address into
- a 20/16bit immediate address. */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM32)
- {
- bfd_vma value = symval;
- unsigned short is_add_mov = 0;
-
- /* See if the value will fit in 20 bits. */
- if ((long) value < 0xfffff && (long) value > 0)
- {
- unsigned short code;
-
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
-
- /* Verify it's a arithmetic ADDD or MOVD instruction.
- For ADDD and MOVD only, convert to IMM32 -> IMM20. */
- if (((code & 0xfff0) == 0x0070) || ((code & 0xfff0) == 0x0020))
- is_add_mov = 1;
-
- if (is_add_mov)
- {
- /* Note that we've changed the relocs, section contents,
- etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
-
- /* Fix the opcode. */
- if ((code & 0xfff0) == 0x0070) /* For movd. */
- bfd_put_8 (abfd, 0x05, contents + irel->r_offset + 1);
- else /* code == 0x0020 for addd. */
- bfd_put_8 (abfd, 0x04, contents + irel->r_offset + 1);
-
- bfd_put_8 (abfd, (code & 0xf) << 4, contents + irel->r_offset);
-
-
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CR16_IMM20);
- /* Delete two bytes of data. */
- if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
-
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
- /* See if the value will fit in 16 bits. */
- if ((!is_add_mov) && ((long) value < 0x7fff && (long) value > 0))
- {
- unsigned short code;
-
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
-
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
-
- /* Fix the opcode. */
- if ((code & 0xf0) == 0x70) /* For movd. */
- bfd_put_8 (abfd, 0x54, contents + irel->r_offset + 1);
- else if ((code & 0xf0) == 0x20) /* For addd. */
- bfd_put_8 (abfd, 0x60, contents + irel->r_offset + 1);
- else if ((code & 0xf0) == 0x90) /* For cmpd. */
- bfd_put_8 (abfd, 0x56, contents + irel->r_offset + 1);
- else
- continue;
-
- bfd_put_8 (abfd, 0xb0 | (code & 0xf), contents + irel->r_offset);
-
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CR16_IMM16);
-
- /* Delete two bytes of data. */
- if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
-
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
-
- /* Try to turn a 20/16bit immediate address into
- a 4bit immediate address. */
- if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
- || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM16))
- {
- bfd_vma value = symval;
-
- /* See if the value will fit in 4 bits. */
- if ((long) value < 0xf && (long) value > 0)
- {
- unsigned short code;
-
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
-
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
-
- /* Fix the opcode. */
- if (((code & 0x0f00) == 0x0400) || ((code & 0x0f00) == 0x0500))
- {
- if ((code & 0x0f00) == 0x0400) /* For movd imm20. */
- bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
- else /* For addd imm20. */
- bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
- bfd_put_8 (abfd, (code & 0xf0) >> 4, contents + irel->r_offset + 1);
- }
- else
- {
- if ((code & 0xfff0) == 0x56b0) /* For cmpd imm16. */
- bfd_put_8 (abfd, 0x56, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x54b0) /* For movd imm16. */
- bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x58b0) /* For movb imm16. */
- bfd_put_8 (abfd, 0x58, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x5Ab0) /* For movw imm16. */
- bfd_put_8 (abfd, 0x5A, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x60b0) /* For addd imm16. */
- bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x30b0) /* For addb imm16. */
- bfd_put_8 (abfd, 0x30, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x2Cb0) /* For addub imm16. */
- bfd_put_8 (abfd, 0x2C, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x32b0) /* For adduw imm16. */
- bfd_put_8 (abfd, 0x32, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x38b0) /* For subb imm16. */
- bfd_put_8 (abfd, 0x38, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x3Ab0) /* For subw imm16. */
- bfd_put_8 (abfd, 0x3A, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x50b0) /* For cmpb imm16. */
- bfd_put_8 (abfd, 0x50, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x52b0) /* For cmpw imm16. */
- bfd_put_8 (abfd, 0x52, contents + irel->r_offset);
- else
- continue;
-
- bfd_put_8 (abfd, (code & 0xf), contents + irel->r_offset + 1);
- }
-
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CR16_IMM4);
-
- /* Delete two bytes of data. */
- if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
-
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
- }
-
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- {
- if (! link_info->keep_memory)
- free (isymbuf);
- else
- /* Cache the symbols for elf_link_input_bfd. */
- symtab_hdr->contents = (unsigned char *) isymbuf;
- }
-
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- {
- if (! link_info->keep_memory)
- free (contents);
- else
- /* Cache the section contents for elf_link_input_bfd. */
- elf_section_data (sec)->this_hdr.contents = contents;
- }
-
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
- free (internal_relocs);
-
- return TRUE;
-
- error_return:
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- free (contents);
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
- free (internal_relocs);
-
- return FALSE;
-}
-
-static asection *
-elf32_cr16_gc_mark_hook (asection *sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- Elf_Internal_Rela *rel ATTRIBUTE_UNUSED,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym *sym)
-{
- if (h == NULL)
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
-
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
-
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
-
- default:
- return NULL;
- }
-}
-
-/* Update the got entry reference counts for the section being removed. */
-
-static bfd_boolean
-elf32_cr16_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
-{
- /* We don't support garbage collection of GOT and PLT relocs yet. */
- return TRUE;
-}
-
-/* Definitions for setting CR16 target vector. */
-#define TARGET_LITTLE_SYM bfd_elf32_cr16_vec
-#define TARGET_LITTLE_NAME "elf32-cr16"
-#define ELF_ARCH bfd_arch_cr16
-#define ELF_MACHINE_CODE EM_CR16
-#define ELF_MACHINE_ALT1 EM_CR16_OLD
-#define ELF_MAXPAGESIZE 0x1
-#define elf_symbol_leading_char '_'
-
-#define bfd_elf32_bfd_reloc_type_lookup elf_cr16_reloc_type_lookup
-#define bfd_elf32_bfd_reloc_name_lookup elf_cr16_reloc_name_lookup
-#define elf_info_to_howto elf_cr16_info_to_howto
-#define elf_info_to_howto_rel 0
-#define elf_backend_relocate_section elf32_cr16_relocate_section
-#define bfd_elf32_bfd_relax_section elf32_cr16_relax_section
-#define bfd_elf32_bfd_get_relocated_section_contents \
- elf32_cr16_get_relocated_section_contents
-#define elf_backend_gc_mark_hook elf32_cr16_gc_mark_hook
-#define elf_backend_gc_sweep_hook elf32_cr16_gc_sweep_hook
-#define elf_backend_can_gc_sections 1
-#define elf_backend_rela_normal 1
-
-#include "elf32-target.h"