configs/MPC8349EMDS_defconfig


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CONFIG_PPC=y
CONFIG_SYS_TEXT_BASE=0xFE000000
CONFIG_ENV_SIZE=0x2000
CONFIG_ENV_SECT_SIZE=0x20000
CONFIG_SYS_CLK_FREQ=66000000
CONFIG_MPC83xx=y
CONFIG_HIGH_BATS=y
CONFIG_TARGET_MPC8349EMDS=y
CONFIG_DDR_MC_CLOCK_MODE_1_1=y
CONFIG_SYSTEM_PLL_FACTOR_4_1=y
CONFIG_CORE_PLL_RATIO_2_1=y
CONFIG_PCI_HOST_MODE_ENABLE=y
CONFIG_PCI_INT_ARBITER1_ENABLE=y
CONFIG_PCI_INT_ARBITER2_ENABLE=y
CONFIG_BOOT_MEMORY_SPACE_LOW=y
CONFIG_BOOT_ROM_INTERFACE_GPCM_16BIT=y
CONFIG_TSEC1_MODE_GMII=y
CONFIG_TSEC2_MODE_GMII=y
CONFIG_BAT0=y
CONFIG_BAT0_NAME="SDRAM"
CONFIG_BAT0_BASE=0x00000000
CONFIG_BAT0_LENGTH_256_MBYTES=y
CONFIG_BAT0_ACCESS_RW=y
CONFIG_BAT0_ICACHE_MEMORYCOHERENCE=y
CONFIG_BAT0_DCACHE_MEMORYCOHERENCE=y
CONFIG_BAT0_USER_MODE_VALID=y
CONFIG_BAT0_SUPERVISOR_MODE_VALID=y
CONFIG_BAT5=y
CONFIG_BAT5_NAME="IMMR"
CONFIG_BAT5_BASE=0xE0000000
CONFIG_BAT5_LENGTH_256_MBYTES=y
CONFIG_BAT5_ACCESS_RW=y
CONFIG_BAT5_ICACHE_INHIBITED=y
CONFIG_BAT5_ICACHE_GUARDED=y
CONFIG_BAT5_DCACHE_INHIBITED=y
CONFIG_BAT5_DCACHE_GUARDED=y
CONFIG_BAT5_USER_MODE_VALID=y
CONFIG_BAT5_SUPERVISOR_MODE_VALID=y
CONFIG_BAT6=y
CONFIG_BAT6_NAME="STACK_IN_DCACHE"
CONFIG_BAT6_BASE=0xF0000000
CONFIG_BAT6_LENGTH_256_MBYTES=y
CONFIG_BAT6_ACCESS_RW=y
CONFIG_BAT6_ICACHE_MEMORYCOHERENCE=y
CONFIG_BAT6_ICACHE_GUARDED=y
CONFIG_BAT6_DCACHE_MEMORYCOHERENCE=y
CONFIG_BAT6_DCACHE_GUARDED=y
CONFIG_BAT6_USER_MODE_VALID=y
CONFIG_BAT6_SUPERVISOR_MODE_VALID=y
CONFIG_LBLAW0=y
CONFIG_LBLAW0_BASE=0xFE000000
CONFIG_LBLAW0_NAME="FLASH"
CONFIG_LBLAW0_LENGTH_32_MBYTES=y
CONFIG_LBLAW1=y
CONFIG_LBLAW1_BASE=0xE2400000
CONFIG_LBLAW1_NAME="BCSR"
CONFIG_LBLAW1_LENGTH_32_KBYTES=y
CONFIG_ELBC_BR0_OR0=y
CONFIG_BR0_OR0_NAME="FLASH"
CONFIG_BR0_OR0_BASE=0xFE000000
CONFIG_BR0_PORTSIZE_16BIT=y
CONFIG_OR0_AM_32_MBYTES=y
CONFIG_OR0_XAM_SET=y
CONFIG_OR0_SCY_15=y
CONFIG_OR0_CSNT_EARLIER=y
CONFIG_OR0_ACS_HALF_CYCLE_EARLIER=y
CONFIG_OR0_XACS_EXTENDED=y
CONFIG_OR0_TRLX_RELAXED=y
CONFIG_OR0_EHTR_8_CYCLE=y
CONFIG_OR0_EAD_EXTRA=y
CONFIG_ELBC_BR1_OR1=y
CONFIG_BR1_OR1_NAME="BCSR"
CONFIG_BR1_OR1_BASE=0xE2400000
CONFIG_OR1_XAM_SET=y
CONFIG_OR1_SCY_15=y
CONFIG_OR1_CSNT_EARLIER=y
CONFIG_HID0_FINAL_EMCP=y
CONFIG_HID0_FINAL_ICE=y
CONFIG_HID2_HBE=y
CONFIG_ACR_PIPE_DEP_4=y
CONFIG_ACR_RPTCNT_4=y
CONFIG_SPCR_TSEC1EP_3=y
CONFIG_SPCR_TSEC2EP_3=y
CONFIG_LCRR_DBYP_PLL_BYPASSED=y
CONFIG_LCRR_CLKDIV_4=y
CONFIG_PCI_ONE_PCI1=y
CONFIG_OF_BOARD_SETUP=y
CONFIG_OF_STDOUT_VIA_ALIAS=y
CONFIG_BOOTDELAY=6
CONFIG_USE_PREBOOT=y
CONFIG_PREBOOT="echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo"
CONFIG_HUSH_PARSER=y
CONFIG_CMD_IMLS=y
CONFIG_CMD_I2C=y
# CONFIG_CMD_SETEXPR is not set
CONFIG_CMD_MII=y
CONFIG_CMD_PING=y
CONFIG_CMD_DATE=y
CONFIG_ENV_OVERWRITE=y
CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
CONFIG_ENV_ADDR=0xFE080000
CONFIG_ENV_ADDR_REDUND=0xFE0A0000
# CONFIG_MMC is not set
CONFIG_MTD_NOR_FLASH=y
CONFIG_FLASH_CFI_DRIVER=y
CONFIG_SYS_FLASH_PROTECTION=y
CONFIG_SYS_FLASH_CFI=y
CONFIG_PHY_ATHEROS=y
CONFIG_PHY_BROADCOM=y
CONFIG_PHY_DAVICOM=y
CONFIG_PHY_LXT=y
CONFIG_PHY_MARVELL=y
CONFIG_PHY_NATSEMI=y
CONFIG_PHY_REALTEK=y
CONFIG_PHY_SMSC=y
CONFIG_PHY_VITESSE=y
CONFIG_TSEC_ENET=y
CONFIG_SYS_NS16550=y
CONFIG_SPI=y
CONFIG_OF_LIBFDT=y
/* 32-bit ELF support for ARM
   Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

typedef unsigned long int insn32;
typedef unsigned short int insn16;

static boolean elf32_arm_set_private_flags
  PARAMS ((bfd *, flagword));
static boolean elf32_arm_copy_private_bfd_data
  PARAMS ((bfd *, bfd *));
static boolean elf32_arm_merge_private_bfd_data
  PARAMS ((bfd *, bfd *));
static boolean elf32_arm_print_private_bfd_data
  PARAMS ((bfd *, PTR));
static int elf32_arm_get_symbol_type
  PARAMS (( Elf_Internal_Sym *, int));
static struct bfd_link_hash_table *elf32_arm_link_hash_table_create
  PARAMS ((bfd *));
static bfd_reloc_status_type elf32_arm_final_link_relocate
  PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *, bfd_byte *,
	   Elf_Internal_Rela *, bfd_vma, struct bfd_link_info *, asection *,
	   const char *, int, struct elf_link_hash_entry *));
static insn32 insert_thumb_branch
  PARAMS ((insn32, int));
static struct elf_link_hash_entry *find_thumb_glue
  PARAMS ((struct bfd_link_info *, const char *, bfd *));
static struct elf_link_hash_entry *find_arm_glue
  PARAMS ((struct bfd_link_info *, const char *, bfd *));
static void record_arm_to_thumb_glue
  PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
static void record_thumb_to_arm_glue
  PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
static void elf32_arm_post_process_headers
  PARAMS ((bfd *, struct bfd_link_info *));
static int elf32_arm_to_thumb_stub
  PARAMS ((struct bfd_link_info *, const char *, bfd *, bfd *, asection *,
	   bfd_byte *, asection *, bfd_vma, bfd_signed_vma, bfd_vma));
static int elf32_thumb_to_arm_stub
  PARAMS ((struct bfd_link_info *, const char *, bfd *, bfd *, asection *,
	   bfd_byte *, asection *, bfd_vma, bfd_signed_vma, bfd_vma));
static boolean elf32_arm_relocate_section
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
	   Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static asection * elf32_arm_gc_mark_hook
  PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
	   struct elf_link_hash_entry *, Elf_Internal_Sym *));
static boolean elf32_arm_gc_sweep_hook
  PARAMS ((bfd *, struct bfd_link_info *, asection *,
	   const Elf_Internal_Rela *));
static boolean elf32_arm_check_relocs
  PARAMS ((bfd *, struct bfd_link_info *, asection *,
	   const Elf_Internal_Rela *));
static boolean elf32_arm_find_nearest_line
  PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
	   const char **, unsigned int *));
static boolean elf32_arm_adjust_dynamic_symbol
  PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
static boolean elf32_arm_size_dynamic_sections
  PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf32_arm_finish_dynamic_symbol
  PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
	   Elf_Internal_Sym *));
static boolean elf32_arm_finish_dynamic_sections
  PARAMS ((bfd *, struct bfd_link_info *));
static struct bfd_hash_entry * elf32_arm_link_hash_newfunc
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
#ifdef USE_REL
static void arm_add_to_rel
  PARAMS ((bfd *, bfd_byte *, reloc_howto_type *, bfd_signed_vma));
#endif

boolean bfd_elf32_arm_allocate_interworking_sections
  PARAMS ((struct bfd_link_info *));
boolean bfd_elf32_arm_get_bfd_for_interworking
  PARAMS ((bfd *, struct bfd_link_info *));
boolean bfd_elf32_arm_process_before_allocation
  PARAMS ((bfd *, struct bfd_link_info *, int));
static enum elf_reloc_type_class elf32_arm_reloc_type_class
  PARAMS ((const Elf_Internal_Rela *));

#define INTERWORK_FLAG(abfd)   (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK)

/* The linker script knows the section names for placement.
   The entry_names are used to do simple name mangling on the stubs.
   Given a function name, and its type, the stub can be found. The
   name can be changed. The only requirement is the %s be present.  */
#define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t"
#define THUMB2ARM_GLUE_ENTRY_NAME   "__%s_from_thumb"

#define ARM2THUMB_GLUE_SECTION_NAME ".glue_7"
#define ARM2THUMB_GLUE_ENTRY_NAME   "__%s_from_arm"

/* The name of the dynamic interpreter.  This is put in the .interp
   section.  */
#define ELF_DYNAMIC_INTERPRETER     "/usr/lib/ld.so.1"

/* The size in bytes of an entry in the procedure linkage table.  */
#define PLT_ENTRY_SIZE 16

/* The first entry in a procedure linkage table looks like
   this.  It is set up so that any shared library function that is
   called before the relocation has been set up calls the dynamic
   linker first.  */
static const bfd_vma elf32_arm_plt0_entry [PLT_ENTRY_SIZE / 4] =
  {
    0xe52de004,	/* str   lr, [sp, #-4]!     */
    0xe59fe010,	/* ldr   lr, [pc, #16]      */
    0xe08fe00e,	/* add   lr, pc, lr         */
    0xe5bef008	/* ldr   pc, [lr, #8]!      */
  };

/* Subsequent entries in a procedure linkage table look like
   this.  */
static const bfd_vma elf32_arm_plt_entry [PLT_ENTRY_SIZE / 4] =
 {
   0xe59fc004,	/* ldr   ip, [pc, #4]       */
   0xe08fc00c,	/* add   ip, pc, ip         */
   0xe59cf000,	/* ldr   pc, [ip]           */
   0x00000000	/* offset to symbol in got  */
 };

/* The ARM 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.  */

/* This structure keeps track of the number of PC relative relocs we
   have copied for a given symbol.  */
struct elf32_arm_pcrel_relocs_copied
  {
    /* Next section.  */
    struct elf32_arm_pcrel_relocs_copied * next;
    /* A section in dynobj.  */
    asection * section;
    /* Number of relocs copied in this section.  */
    bfd_size_type count;
  };

/* Arm ELF linker hash entry.  */
struct elf32_arm_link_hash_entry
  {
    struct elf_link_hash_entry root;

    /* Number of PC relative relocs copied for this symbol.  */
    struct elf32_arm_pcrel_relocs_copied * pcrel_relocs_copied;
  };

/* Declare this now that the above structures are defined.  */
static boolean elf32_arm_discard_copies
  PARAMS ((struct elf32_arm_link_hash_entry *, PTR));

/* Traverse an arm ELF linker hash table.  */
#define elf32_arm_link_hash_traverse(table, func, info)			\
  (elf_link_hash_traverse						\
   (&(table)->root,							\
    (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func),	\
    (info)))

/* Get the ARM elf linker hash table from a link_info structure.  */
#define elf32_arm_hash_table(info) \
  ((struct elf32_arm_link_hash_table *) ((info)->hash))

/* ARM ELF linker hash table.  */
struct elf32_arm_link_hash_table
  {
    /* The main hash table.  */
    struct elf_link_hash_table root;

    /* The size in bytes of the section containg the Thumb-to-ARM glue.  */
    bfd_size_type thumb_glue_size;

    /* The size in bytes of the section containg the ARM-to-Thumb glue.  */
    bfd_size_type arm_glue_size;

    /* An arbitary input BFD chosen to hold the glue sections.  */
    bfd * bfd_of_glue_owner;

    /* A boolean indicating whether knowledge of the ARM's pipeline
       length should be applied by the linker.  */
    int no_pipeline_knowledge;
  };

/* Create an entry in an ARM ELF linker hash table.  */

static struct bfd_hash_entry *
elf32_arm_link_hash_newfunc (entry, table, string)
     struct bfd_hash_entry * entry;
     struct bfd_hash_table * table;
     const char * string;
{
  struct elf32_arm_link_hash_entry * ret =
    (struct elf32_arm_link_hash_entry *) entry;

  /* Allocate the structure if it has not already been allocated by a
     subclass.  */
  if (ret == (struct elf32_arm_link_hash_entry *) NULL)
    ret = ((struct elf32_arm_link_hash_entry *)
	   bfd_hash_allocate (table,
			      sizeof (struct elf32_arm_link_hash_entry)));
  if (ret == (struct elf32_arm_link_hash_entry *) NULL)
    return (struct bfd_hash_entry *) ret;

  /* Call the allocation method of the superclass.  */
  ret = ((struct elf32_arm_link_hash_entry *)
	 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
				     table, string));
  if (ret != (struct elf32_arm_link_hash_entry *) NULL)
    ret->pcrel_relocs_copied = NULL;

  return (struct bfd_hash_entry *) ret;
}

/* Create an ARM elf linker hash table.  */

static struct bfd_link_hash_table *
elf32_arm_link_hash_table_create (abfd)
     bfd *abfd;
{
  struct elf32_arm_link_hash_table *ret;
  bfd_size_type amt = sizeof (struct elf32_arm_link_hash_table);

  ret = (struct elf32_arm_link_hash_table *) bfd_alloc (abfd, amt);
  if (ret == (struct elf32_arm_link_hash_table *) NULL)
    return NULL;

  if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
				      elf32_arm_link_hash_newfunc))
    {
      bfd_release (abfd, ret);
      return NULL;
    }

  ret->thumb_glue_size = 0;
  ret->arm_glue_size = 0;
  ret->bfd_of_glue_owner = NULL;
  ret->no_pipeline_knowledge = 0;

  return &ret->root.root;
}

/* Locate the Thumb encoded calling stub for NAME.  */

static struct elf_link_hash_entry *
find_thumb_glue (link_info, name, input_bfd)
     struct bfd_link_info *link_info;
     const char *name;
     bfd *input_bfd;
{
  char *tmp_name;
  struct elf_link_hash_entry *hash;
  struct elf32_arm_link_hash_table *hash_table;

  /* We need a pointer to the armelf specific hash table.  */
  hash_table = elf32_arm_hash_table (link_info);

  tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
				  + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1);

  BFD_ASSERT (tmp_name);

  sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);

  hash = elf_link_hash_lookup
    (&(hash_table)->root, tmp_name, false, false, true);

  if (hash == NULL)
    /* xgettext:c-format */
    (*_bfd_error_handler) (_("%s: unable to find THUMB glue '%s' for `%s'"),
			   bfd_archive_filename (input_bfd), tmp_name, name);

  free (tmp_name);

  return hash;
}

/* Locate the ARM encoded calling stub for NAME.  */

static struct elf_link_hash_entry *
find_arm_glue (link_info, name, input_bfd)
     struct bfd_link_info *link_info;
     const char *name;
     bfd *input_bfd;
{
  char *tmp_name;
  struct elf_link_hash_entry *myh;
  struct elf32_arm_link_hash_table *hash_table;

  /* We need a pointer to the elfarm specific hash table.  */
  hash_table = elf32_arm_hash_table (link_info);

  tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
				  + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1);

  BFD_ASSERT (tmp_name);

  sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);

  myh = elf_link_hash_lookup
    (&(hash_table)->root, tmp_name, false, false, true);

  if (myh == NULL)
    /* xgettext:c-format */
    (*_bfd_error_handler) (_("%s: unable to find ARM glue '%s' for `%s'"),
			   bfd_archive_filename (input_bfd), tmp_name, name);

  free (tmp_name);

  return myh;
}

/* ARM->Thumb glue:

   .arm
   __func_from_arm:
   ldr r12, __func_addr
   bx  r12
   __func_addr:
   .word func    @ behave as if you saw a ARM_32 reloc.  */

#define ARM2THUMB_GLUE_SIZE 12
static const insn32 a2t1_ldr_insn = 0xe59fc000;
static const insn32 a2t2_bx_r12_insn = 0xe12fff1c;
static const insn32 a2t3_func_addr_insn = 0x00000001;

/* Thumb->ARM:                          Thumb->(non-interworking aware) ARM

   .thumb                               .thumb
   .align 2                             .align 2
   __func_from_thumb:              __func_from_thumb:
   bx pc                                push {r6, lr}
   nop                                  ldr  r6, __func_addr
   .arm                                         mov  lr, pc
   __func_change_to_arm:                        bx   r6
   b func                       .arm
   __func_back_to_thumb:
   ldmia r13! {r6, lr}
   bx    lr
   __func_addr:
   .word        func  */

#define THUMB2ARM_GLUE_SIZE 8
static const insn16 t2a1_bx_pc_insn = 0x4778;
static const insn16 t2a2_noop_insn = 0x46c0;
static const insn32 t2a3_b_insn = 0xea000000;

static const insn16 t2a1_push_insn = 0xb540;
static const insn16 t2a2_ldr_insn = 0x4e03;
static const insn16 t2a3_mov_insn = 0x46fe;
static const insn16 t2a4_bx_insn = 0x4730;
static const insn32 t2a5_pop_insn = 0xe8bd4040;
static const insn32 t2a6_bx_insn = 0xe12fff1e;

boolean
bfd_elf32_arm_allocate_interworking_sections (info)
     struct bfd_link_info * info;
{
  asection * s;
  bfd_byte * foo;
  struct elf32_arm_link_hash_table * globals;

  globals = elf32_arm_hash_table (info);

  BFD_ASSERT (globals != NULL);

  if (globals->arm_glue_size != 0)
    {
      BFD_ASSERT (globals->bfd_of_glue_owner != NULL);

      s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
				   ARM2THUMB_GLUE_SECTION_NAME);

      BFD_ASSERT (s != NULL);

      foo = (bfd_byte *) bfd_alloc (globals->bfd_of_glue_owner,
				    globals->arm_glue_size);

      s->_raw_size = s->_cooked_size = globals->arm_glue_size;
      s->contents = foo;
    }

  if (globals->thumb_glue_size != 0)
    {
      BFD_ASSERT (globals->bfd_of_glue_owner != NULL);

      s = bfd_get_section_by_name
	(globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);

      BFD_ASSERT (s != NULL);

      foo = (bfd_byte *) bfd_alloc (globals->bfd_of_glue_owner,
				    globals->thumb_glue_size);

      s->_raw_size = s->_cooked_size = globals->thumb_glue_size;
      s->contents = foo;
    }

  return true;
}

static void
record_arm_to_thumb_glue (link_info, h)
     struct bfd_link_info * link_info;
     struct elf_link_hash_entry * h;
{
  const char * name = h->root.root.string;
  asection * s;
  char * tmp_name;
  struct elf_link_hash_entry * myh;
  struct elf32_arm_link_hash_table * globals;
  bfd_vma val;

  globals = elf32_arm_hash_table (link_info);

  BFD_ASSERT (globals != NULL);
  BFD_ASSERT (globals->bfd_of_glue_owner != NULL);

  s = bfd_get_section_by_name
    (globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);

  BFD_ASSERT (s != NULL);

  tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
				  + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1);

  BFD_ASSERT (tmp_name);

  sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);

  myh = elf_link_hash_lookup
    (&(globals)->root, tmp_name, false, false, true);

  if (myh != NULL)
    {
      /* We've already seen this guy.  */
      free (tmp_name);
      return;
    }

  /* The only trick here is using hash_table->arm_glue_size as the value. Even
     though the section isn't allocated yet, this is where we will be putting
     it.  */
  val = globals->arm_glue_size + 1;
  _bfd_generic_link_add_one_symbol (link_info, globals->bfd_of_glue_owner,
				    tmp_name, BSF_GLOBAL, s, val,
				    NULL, true, false,
				    (struct bfd_link_hash_entry **) &myh);

  free (tmp_name);

  globals->arm_glue_size += ARM2THUMB_GLUE_SIZE;

  return;
}

static void
record_thumb_to_arm_glue (link_info, h)
     struct bfd_link_info *link_info;
     struct elf_link_hash_entry *h;
{
  const char *name = h->root.root.string;
  asection *s;
  char *tmp_name;
  struct elf_link_hash_entry *myh;
  struct elf32_arm_link_hash_table *hash_table;
  char bind;
  bfd_vma val;

  hash_table = elf32_arm_hash_table (link_info);

  BFD_ASSERT (hash_table != NULL);
  BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL);

  s = bfd_get_section_by_name
    (hash_table->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);

  BFD_ASSERT (s != NULL);

  tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
				  + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1);

  BFD_ASSERT (tmp_name);

  sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);

  myh = elf_link_hash_lookup
    (&(hash_table)->root, tmp_name, false, false, true);

  if (myh != NULL)
    {
      /* We've already seen this guy.  */
      free (tmp_name);
      return;
    }

  val = hash_table->thumb_glue_size + 1;
  _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner,
				    tmp_name, BSF_GLOBAL, s, val,
				    NULL, true, false,
				    (struct bfd_link_hash_entry **) &myh);

  /* If we mark it 'Thumb', the disassembler will do a better job.  */
  bind = ELF_ST_BIND (myh->type);
  myh->type = ELF_ST_INFO (bind, STT_ARM_TFUNC);

  free (tmp_name);

#define CHANGE_TO_ARM "__%s_change_to_arm"
#define BACK_FROM_ARM "__%s_back_from_arm"

  /* Allocate another symbol to mark where we switch to Arm mode.  */
  tmp_name = (char *) bfd_malloc ((bfd_size_type) strlen (name)
				  + strlen (CHANGE_TO_ARM) + 1);

  BFD_ASSERT (tmp_name);

  sprintf (tmp_name, CHANGE_TO_ARM, name);

  myh = NULL;

  val = hash_table->thumb_glue_size + 4,
  _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner,
				    tmp_name, BSF_LOCAL, s, val,
				    NULL, true, false,
				    (struct bfd_link_hash_entry **) &myh);

  free (tmp_name);

  hash_table->thumb_glue_size += THUMB2ARM_GLUE_SIZE;

  return;
}

/* Select a BFD to be used to hold the sections used by the glue code.
   This function is called from the linker scripts in ld/emultempl/
   {armelf/pe}.em  */

boolean
bfd_elf32_arm_get_bfd_for_interworking (abfd, info)
     bfd *abfd;
     struct bfd_link_info *info;
{
  struct elf32_arm_link_hash_table *globals;
  flagword flags;
  asection *sec;

  /* If we are only performing a partial link do not bother
     getting a bfd to hold the glue.  */
  if (info->relocateable)
    return true;

  globals = elf32_arm_hash_table (info);

  BFD_ASSERT (globals != NULL);

  if (globals->bfd_of_glue_owner != NULL)
    return true;

  sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME);

  if (sec == NULL)
    {
      /* Note: we do not include the flag SEC_LINKER_CREATED, as this
	 will prevent elf_link_input_bfd() from processing the contents
	 of this section.  */
      flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_CODE | SEC_READONLY;

      sec = bfd_make_section (abfd, ARM2THUMB_GLUE_SECTION_NAME);

      if (sec == NULL
	  || !bfd_set_section_flags (abfd, sec, flags)
	  || !bfd_set_section_alignment (abfd, sec, 2))
	return false;

      /* Set the gc mark to prevent the section from being removed by garbage
	 collection, despite the fact that no relocs refer to this section.  */
      sec->gc_mark = 1;
    }

  sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME);

  if (sec == NULL)
    {
      flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_CODE | SEC_READONLY;

      sec = bfd_make_section (abfd, THUMB2ARM_GLUE_SECTION_NAME);

      if (sec == NULL
	  || !bfd_set_section_flags (abfd, sec, flags)
	  || !bfd_set_section_alignment (abfd, sec, 2))
	return false;

      sec->gc_mark = 1;
    }

  /* Save the bfd for later use.  */
  globals->bfd_of_glue_owner = abfd;

  return true;
}

boolean
bfd_elf32_arm_process_before_allocation (abfd, link_info, no_pipeline_knowledge)
     bfd *abfd;
     struct bfd_link_info *link_info;
     int no_pipeline_knowledge;
{
  Elf_Internal_Shdr *symtab_hdr;
  Elf_Internal_Rela *free_relocs = NULL;
  Elf_Internal_Rela *irel, *irelend;
  bfd_byte *contents = NULL;
  bfd_byte *free_contents = NULL;
  Elf32_External_Sym *extsyms = NULL;
  Elf32_External_Sym *free_extsyms = NULL;

  asection *sec;
  struct elf32_arm_link_hash_table *globals;

  /* If we are only performing a partial link do not bother
     to construct any glue.  */
  if (link_info->relocateable)
    return true;

  /* Here we have a bfd that is to be included on the link.  We have a hook
     to do reloc rummaging, before section sizes are nailed down.  */
  globals = elf32_arm_hash_table (link_info);

  BFD_ASSERT (globals != NULL);
  BFD_ASSERT (globals->bfd_of_glue_owner != NULL);

  globals->no_pipeline_knowledge = no_pipeline_knowledge;

  /* Rummage around all the relocs and map the glue vectors.  */
  sec = abfd->sections;

  if (sec == NULL)
    return true;

  for (; sec != NULL; sec = sec->next)
    {
      if (sec->reloc_count == 0)
	continue;

      symtab_hdr = &elf_tdata (abfd)->symtab_hdr;

      /* Load the relocs.  */
      irel = (_bfd_elf32_link_read_relocs (abfd, sec, (PTR) NULL,
					   (Elf_Internal_Rela *) NULL, false));

      BFD_ASSERT (irel != 0);

      irelend = irel + sec->reloc_count;
      for (; irel < irelend; irel++)
	{
	  long r_type;
	  unsigned long r_index;

	  struct elf_link_hash_entry *h;

	  r_type = ELF32_R_TYPE (irel->r_info);
	  r_index = ELF32_R_SYM (irel->r_info);

	  /* These are the only relocation types we care about.  */
	  if (   r_type != R_ARM_PC24
	      && r_type != R_ARM_THM_PC22)
	    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;
	      else
		{