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Diffstat (limited to 'binutils-2.24/bfd/elf32-cr16.c')
-rw-r--r--binutils-2.24/bfd/elf32-cr16.c2992
1 files changed, 0 insertions, 2992 deletions
diff --git a/binutils-2.24/bfd/elf32-cr16.c b/binutils-2.24/bfd/elf32-cr16.c
deleted file mode 100644
index 8ed5af1c..00000000
--- a/binutils-2.24/bfd/elf32-cr16.c
+++ /dev/null
@@ -1,2992 +0,0 @@
-/* BFD back-end for National Semiconductor's CR16 ELF
- Copyright 2007, 2008, 2009, 2010, 2012 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"
-
-/* The cr16 linker needs to keep track of the number of relocs that
- it decides to copy in check_relocs for each symbol. This is so
- that it can discard PC relative relocs if it doesn't need them when
- linking with -Bsymbolic. We store the information in a field
- extending the regular ELF linker hash table. */
-
-struct elf32_cr16_link_hash_entry
-{
- /* The basic elf link hash table entry. */
- struct elf_link_hash_entry root;
-
- /* For function symbols, the number of times this function is
- called directly (ie by name). */
- unsigned int direct_calls;
-
- /* For function symbols, the size of this function's stack
- (if <= 255 bytes). We stuff this into "call" instructions
- to this target when it's valid and profitable to do so.
-
- This does not include stack allocated by movm! */
- unsigned char stack_size;
-
- /* For function symbols, arguments (if any) for movm instruction
- in the prologue. We stuff this value into "call" instructions
- to the target when it's valid and profitable to do so. */
- unsigned char movm_args;
-
- /* For function symbols, the amount of stack space that would be allocated
- by the movm instruction. This is redundant with movm_args, but we
- add it to the hash table to avoid computing it over and over. */
- unsigned char movm_stack_size;
-
-/* Used to mark functions which have had redundant parts of their
- prologue deleted. */
-#define CR16_DELETED_PROLOGUE_BYTES 0x1
- unsigned char flags;
-
- /* Calculated value. */
- bfd_vma value;
-};
-
-/* 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},
- {BFD_RELOC_CR16_GOT_REGREL20, R_CR16_GOT_REGREL20},
- {BFD_RELOC_CR16_GOTC_REGREL20, R_CR16_GOTC_REGREL20},
- {BFD_RELOC_CR16_GLOB_DAT, R_CR16_GLOB_DAT}
-};
-
-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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* 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 */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- TRUE), /* pcrel_offset */
-
- HOWTO (R_CR16_GOT_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_GOT_REGREL20", /* name */
- TRUE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xfffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_GOTC_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_GOTC_REGREL20", /* name */
- TRUE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xfffff, /* dst_mask */
- FALSE), /* pcrel_offset */
-
- HOWTO (R_CR16_GLOB_DAT, /* 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_GLOB_DAT", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- TRUE) /* pcrel_offset */
-};
-
-
-/* Create the GOT section. */
-
-static bfd_boolean
-_bfd_cr16_elf_create_got_section (bfd * abfd, struct bfd_link_info * info)
-{
- flagword flags;
- asection * s;
- struct elf_link_hash_entry * h;
- const struct elf_backend_data * bed = get_elf_backend_data (abfd);
- int ptralign;
-
- /* This function may be called more than once. */
- if (bfd_get_linker_section (abfd, ".got") != NULL)
- return TRUE;
-
- switch (bed->s->arch_size)
- {
- case 16:
- ptralign = 1;
- break;
-
- case 32:
- ptralign = 2;
- break;
-
- default:
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
-
- flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
- | SEC_LINKER_CREATED);
-
- s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
- if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, ptralign))
- return FALSE;
-
- if (bed->want_got_plt)
- {
- s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
- if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, ptralign))
- return FALSE;
- }
-
- /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
- (or .got.plt) section. We don't do this in the linker script
- because we don't want to define the symbol if we are not creating
- a global offset table. */
- h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
- elf_hash_table (info)->hgot = h;
- if (h == NULL)
- return FALSE;
-
- /* The first bit of the global offset table is the header. */
- s->size += bed->got_header_size;
-
- return TRUE;
-}
-
-
-/* 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;
-}
-
-/* Look through the relocs for a section during the first phase.
- Since we don't do .gots or .plts, we just need to consider the
- virtual table relocs for gc. */
-
-static bfd_boolean
-cr16_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
- const Elf_Internal_Rela *relocs)
-{
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Sym * isymbuf = NULL;
- struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
- const Elf_Internal_Rela *rel;
- const Elf_Internal_Rela *rel_end;
- bfd * dynobj;
- bfd_vma * local_got_offsets;
- asection * sgot;
- asection * srelgot;
-
- sgot = NULL;
- srelgot = NULL;
- bfd_boolean result = FALSE;
-
- if (info->relocatable)
- return TRUE;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (abfd);
- sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
- if (!elf_bad_symtab (abfd))
- sym_hashes_end -= symtab_hdr->sh_info;
-
- dynobj = elf_hash_table (info)->dynobj;
- local_got_offsets = elf_local_got_offsets (abfd);
- rel_end = relocs + sec->reloc_count;
- for (rel = relocs; rel < rel_end; rel++)
- {
- struct elf_link_hash_entry *h;
- unsigned long r_symndx;
-
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
- else
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
- /* PR15323, ref flags aren't set for references in the same
- object. */
- h->root.non_ir_ref = 1;
- }
-
- /* Some relocs require a global offset table. */
- if (dynobj == NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_CR16_GOT_REGREL20:
- case R_CR16_GOTC_REGREL20:
- elf_hash_table (info)->dynobj = dynobj = abfd;
- if (! _bfd_cr16_elf_create_got_section (dynobj, info))
- goto fail;
- break;
-
- default:
- break;
- }
- }
-
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_CR16_GOT_REGREL20:
- case R_CR16_GOTC_REGREL20:
- /* This symbol requires a global offset table entry. */
-
- if (sgot == NULL)
- {
- sgot = bfd_get_linker_section (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
-
- if (srelgot == NULL
- && (h != NULL || info->executable))
- {
- srelgot = bfd_get_linker_section (dynobj, ".rela.got");
- if (srelgot == NULL)
- {
- flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY | SEC_LINKER_CREATED
- | SEC_READONLY);
- srelgot = bfd_make_section_anyway_with_flags (dynobj,
- ".rela.got",
- flags);
- if (srelgot == NULL
- || ! bfd_set_section_alignment (dynobj, srelgot, 2))
- goto fail;
- }
- }
-
- if (h != NULL)
- {
- if (h->got.offset != (bfd_vma) -1)
- /* We have already allocated space in the .got. */
- break;
-
- h->got.offset = sgot->size;
-
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- goto fail;
- }
-
- srelgot->size += sizeof (Elf32_External_Rela);
- }
- else
- {
- /* This is a global offset table entry for a local
- symbol. */
- if (local_got_offsets == NULL)
- {
- size_t size;
- unsigned int i;
-
- size = symtab_hdr->sh_info * sizeof (bfd_vma);
- local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
-
- if (local_got_offsets == NULL)
- goto fail;
-
- elf_local_got_offsets (abfd) = local_got_offsets;
-
- for (i = 0; i < symtab_hdr->sh_info; i++)
- local_got_offsets[i] = (bfd_vma) -1;
- }
-
- if (local_got_offsets[r_symndx] != (bfd_vma) -1)
- /* We have already allocated space in the .got. */
- break;
-
- local_got_offsets[r_symndx] = sgot->size;
-
- if (info->executable)
- /* If we are generating a shared object, we need to
- output a R_CR16_RELATIVE reloc so that the dynamic
- linker can adjust this GOT entry. */
- srelgot->size += sizeof (Elf32_External_Rela);
- }
-
- sgot->size += 4;
- break;
-
- }
- }
-
- result = TRUE;
- fail:
- if (isymbuf != NULL)
- free (isymbuf);
-
- return result;
-}
-
-/* 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 elf_link_hash_entry * h,
- unsigned long symndx ATTRIBUTE_UNUSED,
- 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;
- bfd * dynobj;
-
- dynobj = elf_hash_table (info)->dynobj;
-
- 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_REGREL20a:
- case R_CR16_GOT_REGREL20:
- case R_CR16_GOTC_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;
-
- /* For GOT and GOTC relocs no boundary checks applied. */
- if (!((r_type == R_CR16_GOT_REGREL20)
- || (r_type == R_CR16_GOTC_REGREL20)))
- {
- 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));
- }
- if (r_type == R_CR16_IMM16)
- {
- Rvalue1 = bfd_get_16 (input_bfd, hit_data);
-
- /* Add or subtract the offset value. */
- if (Rvalue1 & 0x8000)
- Rvalue -= (~Rvalue1 + 1) & 0xffff;
- else
- Rvalue += Rvalue1;
-
- /* Check for range. */
- if ((long) Rvalue > 0xffff || (long) Rvalue < 0x0)
- return bfd_reloc_overflow;
- }
-
- bfd_put_16 (input_bfd, Rvalue, hit_data);
- break;
-
- case 2:
- if ((r_type == R_CR16_ABS20) || (r_type == R_CR16_IMM20))
- {
- Rvalue1 = (bfd_get_16 (input_bfd, hit_data + 2)
- | (((bfd_get_16 (input_bfd, hit_data) & 0xf) <<16)));
-
- /* Add or subtract the offset value. */
- if (Rvalue1 & 0x80000)
- Rvalue -= (~Rvalue1 + 1) & 0xfffff;
- else
- Rvalue += Rvalue1;
-
- /* Check for range. */
- if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
- return bfd_reloc_overflow;
-
- bfd_put_16 (input_bfd, ((bfd_get_16 (input_bfd, hit_data) & 0xfff0)
- | ((Rvalue >> 16) & 0xf)), hit_data);
- bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
- }
- else if (r_type == R_CR16_GOT_REGREL20)
- {
- asection * sgot = bfd_get_linker_section (dynobj, ".got");
-
- if (h != NULL)
- {
- bfd_vma off;
-
- off = h->got.offset;
- BFD_ASSERT (off != (bfd_vma) -1);
-
- if (! elf_hash_table (info)->dynamic_sections_created
- || SYMBOL_REFERENCES_LOCAL (info, h))
- /* This is actually a static link, or it is a
- -Bsymbolic link and the symbol is defined
- locally, or the symbol was forced to be local
- because of a version file. We must initialize
- this entry in the global offset table.
- When doing a dynamic link, we create a .rela.got
- relocation entry to initialize the value. This
- is done in the finish_dynamic_symbol routine. */
- bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
-
- Rvalue = sgot->output_offset + off;
- }
- else
- {
- bfd_vma off;
-
- off = elf_local_got_offsets (input_bfd)[symndx];
- bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
-
- Rvalue = sgot->output_offset + off;
- }
-
- Rvalue += addend;
-
- /* REVISIT: if ((long) Rvalue > 0xffffff ||
- (long) Rvalue < -0x800000). */
- if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
- return bfd_reloc_overflow;
-
-
- bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
- | (((Rvalue >> 16) & 0xf) << 8), hit_data);
- bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
-
- }
- else if (r_type == R_CR16_GOTC_REGREL20)
- {
- asection * sgot;
- sgot = bfd_get_linker_section (dynobj, ".got");
-
- if (h != NULL)
- {
- bfd_vma off;
-
- off = h->got.offset;
- BFD_ASSERT (off != (bfd_vma) -1);
-
- Rvalue >>=1; /* For code symbols. */
-
- if (! elf_hash_table (info)->dynamic_sections_created
- || SYMBOL_REFERENCES_LOCAL (info, h))
- /* This is actually a static link, or it is a
- -Bsymbolic link and the symbol is defined
- locally, or the symbol was forced to be local
- because of a version file. We must initialize
- this entry in the global offset table.
- When doing a dynamic link, we create a .rela.got
- relocation entry to initialize the value. This
- is done in the finish_dynamic_symbol routine. */
- bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
-
- Rvalue = sgot->output_offset + off;
- }
- else
- {
- bfd_vma off;
-
- off = elf_local_got_offsets (input_bfd)[symndx];
- Rvalue >>= 1;
- bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
- Rvalue = sgot->output_offset + off;
- }
-
- Rvalue += addend;
-
- /* Check if any value in DISP. */
- Rvalue1 =((bfd_get_32 (input_bfd, hit_data) >>16)
- | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
-
- /* Add or subtract the offset value. */
- if (Rvalue1 & 0x80000)
- Rvalue -= (~Rvalue1 + 1) & 0xfffff;
- else
- Rvalue += Rvalue1;
-
- /* Check for range. */
- /* REVISIT: if ((long) Rvalue > 0xffffff
- || (long) Rvalue < -0x800000). */
- if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
- return bfd_reloc_overflow;
-
- bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
- | (((Rvalue >> 16) & 0xf) << 8), hit_data);
- bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
- }
- else
- {
- if (r_type == R_CR16_ABS24)
- {
- Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
- | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16)
- | (((bfd_get_32 (input_bfd, hit_data) & 0xf) <<20)));
-
- /* Add or subtract the offset value. */
- if (Rvalue1 & 0x800000)
- Rvalue -= (~Rvalue1 + 1) & 0xffffff;
- else
- Rvalue += Rvalue1;
-
- /* Check for Range. */
- if ((long) Rvalue > 0xffffff || (long) Rvalue < 0x0)
- return bfd_reloc_overflow;
-
- Rvalue = ((((Rvalue >> 20) & 0xf) | (((Rvalue >> 16) & 0xf)<<8)
- | (bfd_get_32 (input_bfd, hit_data) & 0xf0f0))
- | ((Rvalue & 0xffff) << 16));
- }
- else 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))
- {
- Rvalue1 =((((bfd_get_32 (input_bfd, hit_data)) >> 16) &0xffff)
- | (((bfd_get_32 (input_bfd, hit_data)) &0xffff)) << 16);
-
- /* Add or subtract the offset value. */
- if (Rvalue1 & 0x80000000)
- Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
- else
- Rvalue += Rvalue1;
-
- /* Check for range. */
- if (Rvalue > 0xffffffff || (long) Rvalue < 0x0)
- return bfd_reloc_overflow;
-
- Rvalue = (((Rvalue >> 16)& 0xffff) | (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));
- }
- else if ((r_type == R_CR16_REGREL20)
- || (r_type == R_CR16_REGREL20a))
- {
- Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
- | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
- /* Add or subtract the offset value. */
- if (Rvalue1 & 0x80000)
- Rvalue -= (~Rvalue1 + 1) & 0xfffff;
- else
- Rvalue += Rvalue1;
-
- /* Check for range. */
- if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
- return bfd_reloc_overflow;
-
- Rvalue = (((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8)
- | ((Rvalue & 0xffff) << 16)))
- | (bfd_get_32 (input_bfd, hit_data) & 0xf0ff));
-
- }
- else if (r_type == R_CR16_NUM32)
- {
- Rvalue1 = (bfd_get_32 (input_bfd, hit_data));
-
- /* Add or subtract the offset value */
- if (Rvalue1 & 0x80000000)
- Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
- else
- Rvalue += Rvalue1;
-
- /* Check for Ranga */
- if (Rvalue > 0xffffffff)
- return bfd_reloc_overflow;
- }
-
- 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;
- 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;
-
- 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. */
-#if 0
- 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;
- }
-#endif
-
- 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;
-
- 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);
- }
-
- if (sec != NULL && discarded_section (sec))
- RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
- rel, 1, relend, howto, 0, contents);
-
- if (info->relocatable)
- continue;
-
- r = cr16_elf_final_link_relocate (howto, input_bfd, output_bfd,
- input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend,
- (struct elf_link_hash_entry *) h,
- r_symndx,
- 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;
-}
-
-/* Assorted hash table functions. */
-
-/* Initialize an entry in the link hash table. */
-
-/* Create an entry in an CR16 ELF linker hash table. */
-
-static struct bfd_hash_entry *
-elf32_cr16_link_hash_newfunc (struct bfd_hash_entry *entry,
- struct bfd_hash_table *table,
- const char *string)
-{
- struct elf32_cr16_link_hash_entry *ret =
- (struct elf32_cr16_link_hash_entry *) entry;
-
- /* Allocate the structure if it has not already been allocated by a
- subclass. */
- if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
- ret = ((struct elf32_cr16_link_hash_entry *)
- bfd_hash_allocate (table,
- sizeof (struct elf32_cr16_link_hash_entry)));
- if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
- return (struct bfd_hash_entry *) ret;
-
- /* Call the allocation method of the superclass. */
- ret = ((struct elf32_cr16_link_hash_entry *)
- _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
- table, string));
- if (ret != (struct elf32_cr16_link_hash_entry *) NULL)
- {
- ret->direct_calls = 0;
- ret->stack_size = 0;
- ret->movm_args = 0;
- ret->movm_stack_size = 0;
- ret->flags = 0;
- ret->value = 0;
- }
-
- return (struct bfd_hash_entry *) ret;
-}
-
-/* Create an cr16 ELF linker hash table. */
-
-static struct bfd_link_hash_table *
-elf32_cr16_link_hash_table_create (bfd *abfd)
-{
- struct elf_link_hash_table *ret;
- bfd_size_type amt = sizeof (struct elf_link_hash_table);
-
- ret = (struct elf_link_hash_table *) bfd_zmalloc (amt);
- if (ret == (struct elf_link_hash_table *) NULL)
- return NULL;
-
- if (!_bfd_elf_link_hash_table_init (ret, abfd,
- elf32_cr16_link_hash_newfunc,
- sizeof (struct elf32_cr16_link_hash_entry),
- GENERIC_ELF_DATA))
- {
- free (ret);
- return NULL;
- }
-
- return &ret->root;
-}
-
-static unsigned long
-elf_cr16_mach (flagword flags)
-{
- switch (flags)
- {
- case EM_CR16:
- default:
- return bfd_mach_cr16;
- }
-}
-
-/* The final processing done just before writing out a CR16 ELF object
- file. This gets the CR16 architecture right based on the machine
- number. */
-
-static void
-_bfd_cr16_elf_final_write_processing (bfd *abfd,
- bfd_boolean linker ATTRIBUTE_UNUSED)
-{
- unsigned long val;
- switch (bfd_get_mach (abfd))
- {
- default:
- case bfd_mach_cr16:
- val = EM_CR16;
- break;
- }
-
-
- elf_elfheader (abfd)->e_flags |= val;
-}
-
-
-static bfd_boolean
-_bfd_cr16_elf_object_p (bfd *abfd)
-{
- bfd_default_set_arch_mach (abfd, bfd_arch_cr16,
- elf_cr16_mach (elf_elfheader (abfd)->e_flags));
- return TRUE;
-}
-
-/* Merge backend specific data from an object file to the output
- object file when linking. */
-
-static bfd_boolean
-_bfd_cr16_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
-{
- if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return TRUE;
-
- if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
- && bfd_get_mach (obfd) < bfd_get_mach (ibfd))
- {
- if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
- bfd_get_mach (ibfd)))
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/* This function handles relaxing for the CR16.
-
- There's quite a few relaxing opportunites available on the CR16:
-
- * bcond:24 -> bcond:16 1 byte
- * bcond:16 -> bcond:8 1 byte
- * arithmetic imm32 -> arithmetic imm20 12 bits
- * arithmetic imm20/imm16 -> arithmetic imm4 12/16 bits
-
- 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);
- 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 16bit pc-relative branch into an
- 8bit 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 < 0x1fa && (long) value > -0x100) REVISIT:range */
- if ((long) value < 0xfa && (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' and fix the opcode. */
- if ((code & 0xff0f) == 0x1800)
- bfd_put_16 (abfd, (code & 0xf0f0), contents + irel->r_offset);
- 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 32-bit IMM address into a 20/16-bit IMM address */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM32)
- {
- bfd_vma value = symval;
- unsigned short is_add_mov = 0;
- bfd_vma value1 = 0;
-
- /* Get the existing value from the mcode */
- value1 = ((bfd_get_32 (abfd, contents + irel->r_offset + 2) >> 16)
- |(((bfd_get_32 (abfd, contents + irel->r_offset + 2) & 0xffff) << 16)));
-
- /* See if the value will fit in 20 bits. */
- if ((long) (value + value1) < 0xfffff && (long) (value + value1) > 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);
-
- /* If existing value is nagavive adjust approriately
- place the 16-20bits (ie 4 bit) in new opcode,
- as the 0xffffxxxx, the higher 2 byte values removed. */
- if (value1 & 0x80000000)
- bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
- else
- bfd_put_8 (abfd, (((value1 >> 16)&0xf) | (bfd_get_8(abfd, contents + irel->r_offset))), 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 + value1) < 0x7fff && (long)(value + value1) > 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);
-
- /* If existing value is nagavive adjust approriately
- place the 12-16bits (ie 4 bit) in new opcode,
- as the 0xfffffxxx, the higher 2 byte values removed. */
- if (value1 & 0x80000000)
- bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
- else
- bfd_put_16 (abfd, value1, contents + irel->r_offset + 2);
-
-
- /* 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;
- }
- }
-
-#if 0
- /* Try to turn a 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;
- bfd_vma value1 = 0;
-
- /* Get the existing value from the mcode */
- value1 = ((bfd_get_16 (abfd, contents + irel->r_offset + 2) & 0xffff));
-
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
- {
- value1 |= ((bfd_get_16 (abfd, contents + irel->r_offset + 1) & 0xf000) << 0x4);
- }
-
- /* See if the value will fit in 4 bits. */
- if ((((long) (value + value1)) < 0xf)
- && (((long) (value + value1)) > 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) == 0x3Cb0) /* For subcb imm16. */
- bfd_put_8 (abfd, 0x3C, contents + irel->r_offset);
- else if ((code & 0xfff0) == 0x3Fb0) /* For subcw imm16. */
- bfd_put_8 (abfd, 0x3F, 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;
- }
- }
-#endif
- }
-
- 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,
- Elf_Internal_Rela *rel,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym *sym)
-{
- return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
-}
-
-/* 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;
-}
-
-/* Create dynamic sections when linking against a dynamic object. */
-
-static bfd_boolean
-_bfd_cr16_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
-{
- flagword flags;
- asection * s;
- const struct elf_backend_data * bed = get_elf_backend_data (abfd);
- int ptralign = 0;
-
- switch (bed->s->arch_size)
- {
- case 16:
- ptralign = 1;
- break;
-
- case 32:
- ptralign = 2;
- break;
-
- default:
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
-
- /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
- .rel[a].bss sections. */
-
- flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
- | SEC_LINKER_CREATED);
-
- s = bfd_make_section_anyway_with_flags (abfd,
- (bed->default_use_rela_p
- ? ".rela.plt" : ".rel.plt"),
- flags | SEC_READONLY);
- if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, ptralign))
- return FALSE;
-
- if (! _bfd_cr16_elf_create_got_section (abfd, info))
- return FALSE;
-
- if (bed->want_dynbss)
- {
- /* The .dynbss section is a place to put symbols which are defined
- by dynamic objects, are referenced by regular objects, and are
- not functions. We must allocate space for them in the process
- image and use a R_*_COPY reloc to tell the dynamic linker to
- initialize them at run time. The linker script puts the .dynbss
- section into the .bss section of the final image. */
- s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
- SEC_ALLOC | SEC_LINKER_CREATED);
- if (s == NULL)
- return FALSE;
-
- /* The .rel[a].bss section holds copy relocs. This section is not
- normally needed. We need to create it here, though, so that the
- linker will map it to an output section. We can't just create it
- only if we need it, because we will not know whether we need it
- until we have seen all the input files, and the first time the
- main linker code calls BFD after examining all the input files
- (size_dynamic_sections) the input sections have already been
- mapped to the output sections. If the section turns out not to
- be needed, we can discard it later. We will never need this
- section when generating a shared object, since they do not use
- copy relocs. */
- if (! info->executable)
- {
- s = bfd_make_section_anyway_with_flags (abfd,
- (bed->default_use_rela_p
- ? ".rela.bss" : ".rel.bss"),
- flags | SEC_READONLY);
- if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, ptralign))
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-/* Adjust a symbol defined by a dynamic object and referenced by a
- regular object. The current definition is in some section of the
- dynamic object, but we're not including those sections. We have to
- change the definition to something the rest of the link can
- understand. */
-
-static bfd_boolean
-_bfd_cr16_elf_adjust_dynamic_symbol (struct bfd_link_info * info,
- struct elf_link_hash_entry * h)
-{
- bfd * dynobj;
- asection * s;
-
- dynobj = elf_hash_table (info)->dynobj;
-
- /* Make sure we know what is going on here. */
- BFD_ASSERT (dynobj != NULL
- && (h->needs_plt
- || h->u.weakdef != NULL
- || (h->def_dynamic
- && h->ref_regular
- && !h->def_regular)));
-
- /* If this is a function, put it in the procedure linkage table. We
- will fill in the contents of the procedure linkage table later,
- when we know the address of the .got section. */
- if (h->type == STT_FUNC
- || h->needs_plt)
- {
- if (! info->executable
- && !h->def_dynamic
- && !h->ref_dynamic)
- {
- /* This case can occur if we saw a PLT reloc in an input
- file, but the symbol was never referred to by a dynamic
- object. In such a case, we don't actually need to build
- a procedure linkage table, and we can just do a REL32
- reloc instead. */
- BFD_ASSERT (h->needs_plt);
- return TRUE;
- }
-
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
-
- /* We also need to make an entry in the .got.plt section, which
- will be placed in the .got section by the linker script. */
-
- s = bfd_get_linker_section (dynobj, ".got.plt");
- BFD_ASSERT (s != NULL);
- s->size += 4;
-
- /* We also need to make an entry in the .rela.plt section. */
-
- s = bfd_get_linker_section (dynobj, ".rela.plt");
- BFD_ASSERT (s != NULL);
- s->size += sizeof (Elf32_External_Rela);
-
- return TRUE;
- }
-
- /* If this is a weak symbol, and there is a real definition, the
- processor independent code will have arranged for us to see the
- real definition first, and we can just use the same value. */
- if (h->u.weakdef != NULL)
- {
- BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
- || h->u.weakdef->root.type == bfd_link_hash_defweak);
- h->root.u.def.section = h->u.weakdef->root.u.def.section;
- h->root.u.def.value = h->u.weakdef->root.u.def.value;
- return TRUE;
- }
-
- /* This is a reference to a symbol defined by a dynamic object which
- is not a function. */
-
- /* If we are creating a shared library, we must presume that the
- only references to the symbol are via the global offset table.
- For such cases we need not do anything here; the relocations will
- be handled correctly by relocate_section. */
- if (info->executable)
- return TRUE;
-
- /* If there are no references to this symbol that do not use the
- GOT, we don't need to generate a copy reloc. */
- if (!h->non_got_ref)
- return TRUE;
-
- /* We must allocate the symbol in our .dynbss section, which will
- become part of the .bss section of the executable. There will be
- an entry for this symbol in the .dynsym section. The dynamic
- object will contain position independent code, so all references
- from the dynamic object to this symbol will go through the global
- offset table. The dynamic linker will use the .dynsym entry to
- determine the address it must put in the global offset table, so
- both the dynamic object and the regular object will refer to the
- same memory location for the variable. */
-
- s = bfd_get_linker_section (dynobj, ".dynbss");
- BFD_ASSERT (s != NULL);
-
- /* We must generate a R_CR16_COPY reloc to tell the dynamic linker to
- copy the initial value out of the dynamic object and into the
- runtime process image. We need to remember the offset into the
- .rela.bss section we are going to use. */
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
- {
- asection * srel;
-
- srel = bfd_get_linker_section (dynobj, ".rela.bss");
- BFD_ASSERT (srel != NULL);
- srel->size += sizeof (Elf32_External_Rela);
- h->needs_copy = 1;
- }
-
- return _bfd_elf_adjust_dynamic_copy (h, s);
-}
-
-/* Set the sizes of the dynamic sections. */
-
-static bfd_boolean
-_bfd_cr16_elf_size_dynamic_sections (bfd * output_bfd,
- struct bfd_link_info * info)
-{
- bfd * dynobj;
- asection * s;
- bfd_boolean plt;
- bfd_boolean relocs;
- bfd_boolean reltext;
-
- dynobj = elf_hash_table (info)->dynobj;
- BFD_ASSERT (dynobj != NULL);
-
- if (elf_hash_table (info)->dynamic_sections_created)
- {
- /* Set the contents of the .interp section to the interpreter. */
- if (info->executable)
- {
-#if 0
- s = bfd_get_linker_section (dynobj, ".interp");
- BFD_ASSERT (s != NULL);
- s->size = sizeof ELF_DYNAMIC_INTERPRETER;
- s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
-#endif
- }
- }
- else
- {
- /* We may have created entries in the .rela.got section.
- However, if we are not creating the dynamic sections, we will
- not actually use these entries. Reset the size of .rela.got,
- which will cause it to get stripped from the output file
- below. */
- s = bfd_get_linker_section (dynobj, ".rela.got");
- if (s != NULL)
- s->size = 0;
- }
-
- /* The check_relocs and adjust_dynamic_symbol entry points have
- determined the sizes of the various dynamic sections. Allocate
- memory for them. */
- plt = FALSE;
- relocs = FALSE;
- reltext = FALSE;
- for (s = dynobj->sections; s != NULL; s = s->next)
- {
- const char * name;
-
- if ((s->flags & SEC_LINKER_CREATED) == 0)
- continue;
-
- /* It's OK to base decisions on the section name, because none
- of the dynobj section names depend upon the input files. */
- name = bfd_get_section_name (dynobj, s);
-
- if (strcmp (name, ".plt") == 0)
- {
- /* Remember whether there is a PLT. */
- plt = s->size != 0;
- }
- else if (CONST_STRNEQ (name, ".rela"))
- {
- if (s->size != 0)
- {
- asection * target;
-
- /* Remember whether there are any reloc sections other
- than .rela.plt. */
- if (strcmp (name, ".rela.plt") != 0)
- {
- const char * outname;
-
- relocs = TRUE;
-
- /* If this relocation section applies to a read only
- section, then we probably need a DT_TEXTREL
- entry. The entries in the .rela.plt section
- really apply to the .got section, which we
- created ourselves and so know is not readonly. */
- outname = bfd_get_section_name (output_bfd,
- s->output_section);
- target = bfd_get_section_by_name (output_bfd, outname + 5);
- if (target != NULL
- && (target->flags & SEC_READONLY) != 0
- && (target->flags & SEC_ALLOC) != 0)
- reltext = TRUE;
- }
-
- /* We use the reloc_count field as a counter if we need
- to copy relocs into the output file. */
- s->reloc_count = 0;
- }
- }
- else if (! CONST_STRNEQ (name, ".got")
- && strcmp (name, ".dynbss") != 0)
- /* It's not one of our sections, so don't allocate space. */
- continue;
-
- if (s->size == 0)
- {
- /* If we don't need this section, strip it from the
- output file. This is mostly to handle .rela.bss and
- .rela.plt. We must create both sections in
- create_dynamic_sections, because they must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
- s->flags |= SEC_EXCLUDE;
- continue;
- }
-
- if ((s->flags & SEC_HAS_CONTENTS) == 0)
- continue;
-
- /* Allocate memory for the section contents. We use bfd_zalloc
- here in case unused entries are not reclaimed before the
- section's contents are written out. This should not happen,
- but this way if it does, we get a R_CR16_NONE reloc
- instead of garbage. */
- s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
- if (s->contents == NULL)
- return FALSE;
- }
-
- if (elf_hash_table (info)->dynamic_sections_created)
- {
- /* Add some entries to the .dynamic section. We fill in the
- values later, in _bfd_cr16_elf_finish_dynamic_sections,
- but we must add the entries now so that we get the correct
- size for the .dynamic section. The DT_DEBUG entry is filled
- in by the dynamic linker and used by the debugger. */
- if (! info->executable)
- {
- if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
- return FALSE;
- }
-
- if (plt)
- {
- if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
- || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
- || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
- || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
- return FALSE;
- }
-
- if (relocs)
- {
- if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
- || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
- || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
- sizeof (Elf32_External_Rela)))
- return FALSE;
- }
-
- if (reltext)
- {
- if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-/* Finish up dynamic symbol handling. We set the contents of various
- dynamic sections here. */
-
-static bfd_boolean
-_bfd_cr16_elf_finish_dynamic_symbol (bfd * output_bfd,
- struct bfd_link_info * info,
- struct elf_link_hash_entry * h,
- Elf_Internal_Sym * sym)
-{
- bfd * dynobj;
-
- dynobj = elf_hash_table (info)->dynobj;
-
- if (h->got.offset != (bfd_vma) -1)
- {
- asection * sgot;
- asection * srel;
- Elf_Internal_Rela rel;
-
- /* This symbol has an entry in the global offset table. Set it up. */
-
- sgot = bfd_get_linker_section (dynobj, ".got");
- srel = bfd_get_linker_section (dynobj, ".rela.got");
- BFD_ASSERT (sgot != NULL && srel != NULL);
-
- rel.r_offset = (sgot->output_section->vma
- + sgot->output_offset
- + (h->got.offset & ~1));
-
- /* If this is a -Bsymbolic link, and the symbol is defined
- locally, we just want to emit a RELATIVE reloc. Likewise if
- the symbol was forced to be local because of a version file.
- The entry in the global offset table will already have been
- initialized in the relocate_section function. */
- if (info->executable
- && (info->symbolic || h->dynindx == -1)
- && h->def_regular)
- {
- rel.r_info = ELF32_R_INFO (0, R_CR16_GOT_REGREL20);
- rel.r_addend = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- }
- else
- {
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
- rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
- rel.r_addend = 0;
- }
-
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- (bfd_byte *) ((Elf32_External_Rela *) srel->contents
- + srel->reloc_count));
- ++ srel->reloc_count;
- }
-
- if (h->needs_copy)
- {
- asection * s;
- Elf_Internal_Rela rel;
-
- /* This symbol needs a copy reloc. Set it up. */
- BFD_ASSERT (h->dynindx != -1
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak));
-
- s = bfd_get_linker_section (dynobj, ".rela.bss");
- BFD_ASSERT (s != NULL);
-
- rel.r_offset = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
- rel.r_addend = 0;
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- (bfd_byte *) ((Elf32_External_Rela *) s->contents
- + s->reloc_count));
- ++ s->reloc_count;
- }
-
- /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
- if (h == elf_hash_table (info)->hdynamic
- || h == elf_hash_table (info)->hgot)
- sym->st_shndx = SHN_ABS;
-
- return TRUE;
-}
-
-/* Finish up the dynamic sections. */
-
-static bfd_boolean
-_bfd_cr16_elf_finish_dynamic_sections (bfd * output_bfd,
- struct bfd_link_info * info)
-{
- bfd * dynobj;
- asection * sgot;
- asection * sdyn;
-
- dynobj = elf_hash_table (info)->dynobj;
-
- sgot = bfd_get_linker_section (dynobj, ".got.plt");
- BFD_ASSERT (sgot != NULL);
- sdyn = bfd_get_linker_section (dynobj, ".dynamic");
-
- if (elf_hash_table (info)->dynamic_sections_created)
- {
- Elf32_External_Dyn * dyncon;
- Elf32_External_Dyn * dynconend;
-
- BFD_ASSERT (sdyn != NULL);
-
- dyncon = (Elf32_External_Dyn *) sdyn->contents;
- dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
-
- for (; dyncon < dynconend; dyncon++)
- {
- Elf_Internal_Dyn dyn;
- const char * name;
- asection * s;
-
- bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
-
- switch (dyn.d_tag)
- {
- default:
- break;
-
- case DT_PLTGOT:
- name = ".got";
- goto get_vma;
-
- case DT_JMPREL:
- name = ".rela.plt";
- get_vma:
- s = bfd_get_section_by_name (output_bfd, name);
- BFD_ASSERT (s != NULL);
- dyn.d_un.d_ptr = s->vma;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
- break;
-
- case DT_PLTRELSZ:
- s = bfd_get_section_by_name (output_bfd, ".rela.plt");
- BFD_ASSERT (s != NULL);
- dyn.d_un.d_val = s->size;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
- break;
-
- case DT_RELASZ:
- /* My reading of the SVR4 ABI indicates that the
- procedure linkage table relocs (DT_JMPREL) should be
- included in the overall relocs (DT_RELA). This is
- what Solaris does. However, UnixWare can not handle
- that case. Therefore, we override the DT_RELASZ entry
- here to make it not include the JMPREL relocs. Since
- the linker script arranges for .rela.plt to follow all
- other relocation sections, we don't have to worry
- about changing the DT_RELA entry. */
- s = bfd_get_section_by_name (output_bfd, ".rela.plt");
- if (s != NULL)
- dyn.d_un.d_val -= s->size;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
- break;
- }
- }
-
- }
-
- /* Fill in the first three entries in the global offset table. */
- if (sgot->size > 0)
- {
- if (sdyn == NULL)
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
- else
- bfd_put_32 (output_bfd,
- sdyn->output_section->vma + sdyn->output_offset,
- sgot->contents);
- }
-
- elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
-
- return TRUE;
-}
-
-/* Given a .data.rel section and a .emreloc in-memory section, store
- relocation information into the .emreloc section which can be
- used at runtime to relocate the section. This is called by the
- linker when the --embedded-relocs switch is used. This is called
- after the add_symbols entry point has been called for all the
- objects, and before the final_link entry point is called. */
-
-bfd_boolean
-bfd_cr16_elf32_create_embedded_relocs (bfd *abfd,
- struct bfd_link_info *info,
- asection *datasec,
- asection *relsec,
- char **errmsg)
-{
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Sym *isymbuf = NULL;
- Elf_Internal_Rela *internal_relocs = NULL;
- Elf_Internal_Rela *irel, *irelend;
- bfd_byte *p;
- bfd_size_type amt;
-
- BFD_ASSERT (! info->relocatable);
-
- *errmsg = NULL;
-
- if (datasec->reloc_count == 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, datasec, NULL, NULL, info->keep_memory));
- if (internal_relocs == NULL)
- goto error_return;
-
- amt = (bfd_size_type) datasec->reloc_count * 8;
- relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
- if (relsec->contents == NULL)
- goto error_return;
-
- p = relsec->contents;
-
- irelend = internal_relocs + datasec->reloc_count;
- for (irel = internal_relocs; irel < irelend; irel++, p += 8)
- {
- asection *targetsec;
-
- /* We are going to write a four byte longword into the runtime
- reloc section. The longword will be the address in the data
- section which must be relocated. It is followed by the name
- of the target section NUL-padded or truncated to 8
- characters. */
-
- /* We can only relocate absolute longword relocs at run time. */
- if (!((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
- || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32)))
- {
- *errmsg = _("unsupported reloc type");
- bfd_set_error (bfd_error_bad_value);
- goto error_return;
- }
-
- /* Get the target section referred to by the reloc. */
- if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
- {
- /* A local symbol. */
- Elf_Internal_Sym *isym;
-
- /* Read this BFD's local symbols if we haven't done so already. */
- if (isymbuf == NULL)
- {
- 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;
- }
-
- isym = isymbuf + ELF32_R_SYM (irel->r_info);
- targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
- }
- 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)
- targetsec = h->root.u.def.section;
- else
- targetsec = NULL;
- }
-
- bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
- memset (p + 4, 0, 4);
- if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
- && (targetsec != NULL) )
- strncpy ((char *) p + 4, targetsec->output_section->name, 4);
- }
-
- if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (internal_relocs != NULL
- && elf_section_data (datasec)->relocs != internal_relocs)
- free (internal_relocs);
- return TRUE;
-
-error_return:
- if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (internal_relocs != NULL
- && elf_section_data (datasec)->relocs != internal_relocs)
- free (internal_relocs);
- return FALSE;
-}
-
-
-/* Classify relocation types, such that combreloc can sort them
- properly. */
-
-static enum elf_reloc_type_class
-_bfd_cr16_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
- const asection *rel_sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela *rela)
-{
- switch ((int) ELF32_R_TYPE (rela->r_info))
- {
- case R_CR16_GOT_REGREL20:
- case R_CR16_GOTC_REGREL20:
- return reloc_class_relative;
- default:
- return reloc_class_normal;
- }
-}
-
-/* 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
-#define elf_backend_check_relocs cr16_elf_check_relocs
-/* So we can set bits in e_flags. */
-#define elf_backend_final_write_processing \
- _bfd_cr16_elf_final_write_processing
-#define elf_backend_object_p _bfd_cr16_elf_object_p
-
-#define bfd_elf32_bfd_merge_private_bfd_data \
- _bfd_cr16_elf_merge_private_bfd_data
-
-
-#define bfd_elf32_bfd_link_hash_table_create \
- elf32_cr16_link_hash_table_create
-
-#define elf_backend_create_dynamic_sections \
- _bfd_cr16_elf_create_dynamic_sections
-#define elf_backend_adjust_dynamic_symbol \
- _bfd_cr16_elf_adjust_dynamic_symbol
-#define elf_backend_size_dynamic_sections \
- _bfd_cr16_elf_size_dynamic_sections
-#define elf_backend_omit_section_dynsym \
- ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
-#define elf_backend_finish_dynamic_symbol \
- _bfd_cr16_elf_finish_dynamic_symbol
-#define elf_backend_finish_dynamic_sections \
- _bfd_cr16_elf_finish_dynamic_sections
-
-#define elf_backend_reloc_type_class _bfd_cr16_elf_reloc_type_class
-
-
-#define elf_backend_want_got_plt 1
-#define elf_backend_plt_readonly 1
-#define elf_backend_want_plt_sym 0
-#define elf_backend_got_header_size 12
-
-#include "elf32-target.h"