--- /dev/null
+/* ALPHA-specific support for 64-bit ELF
+ Copyright 1996 Free Software Foundation, Inc.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+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. */
+
+/* We need a published ABI spec for this. Until one comes out, don't
+ assume this'll remain unchanged forever. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+
+#include "elf/alpha.h"
+
+#define ALPHAECOFF
+
+#define NO_COFF_RELOCS
+#define NO_COFF_SYMBOLS
+#define NO_COFF_LINENOS
+
+/* Get the ECOFF swapping routines. Needed for the debug information. */
+#include "coff/internal.h"
+#include "coff/sym.h"
+#include "coff/symconst.h"
+#include "coff/ecoff.h"
+#include "coff/alpha.h"
+#include "aout/ar.h"
+#include "libcoff.h"
+#include "libecoff.h"
+#define ECOFF_64
+#include "ecoffswap.h"
+
+static struct bfd_hash_entry * elf64_alpha_link_hash_newfunc
+ PARAMS((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+static struct bfd_link_hash_table * elf64_alpha_bfd_link_hash_table_create
+ PARAMS((bfd *));
+
+static bfd_reloc_status_type elf64_alpha_reloc_nil
+ PARAMS((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type elf64_alpha_do_reloc_gpdisp
+ PARAMS((bfd *, bfd_vma, bfd_byte *, bfd_byte *));
+static bfd_reloc_status_type elf64_alpha_reloc_gpdisp
+ PARAMS((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type elf64_alpha_reloc_op_push
+ PARAMS((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type elf64_alpha_reloc_op_store
+ PARAMS((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type elf64_alpha_reloc_op_psub
+ PARAMS((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type elf64_alpha_reloc_op_prshift
+ PARAMS((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+
+static reloc_howto_type * elf64_alpha_bfd_reloc_type_lookup
+ PARAMS((bfd *, bfd_reloc_code_real_type));
+static void elf64_alpha_info_to_howto
+ PARAMS((bfd *, arelent *, Elf64_Internal_Rela *));
+
+static boolean elf64_alpha_object_p
+ PARAMS((bfd *));
+static boolean elf64_alpha_section_from_shdr
+ PARAMS((bfd *, Elf64_Internal_Shdr *, char *));
+static boolean elf64_alpha_fake_sections
+ PARAMS((bfd *, Elf64_Internal_Shdr *, asection *));
+static int elf64_alpha_additional_program_headers
+ PARAMS((bfd *));
+static boolean elf64_alpha_create_got_section
+ PARAMS((bfd *, struct bfd_link_info *));
+static boolean elf64_alpha_create_dynamic_sections
+ PARAMS((bfd *, struct bfd_link_info *));
+
+static boolean elf64_alpha_read_ecoff_info
+ PARAMS((bfd *, asection *, struct ecoff_debug_info *));
+static boolean elf64_alpha_is_local_label
+ PARAMS((bfd *, asymbol *));
+static boolean elf64_alpha_find_nearest_line
+ PARAMS((bfd *, asection *, asymbol **, bfd_vma, const char **,
+ const char **, unsigned int *));
+
+struct alpha_elf_link_hash_entry;
+static boolean elf64_alpha_output_extsym
+ PARAMS((struct alpha_elf_link_hash_entry *, PTR));
+
+static boolean elf64_alpha_check_relocs
+ PARAMS((bfd *, struct bfd_link_info *, asection *sec,
+ const Elf_Internal_Rela *));
+static boolean elf64_alpha_adjust_dynamic_symbol
+ PARAMS((struct bfd_link_info *, struct elf_link_hash_entry *));
+static boolean elf64_alpha_size_dynamic_sections
+ PARAMS((bfd *, struct bfd_link_info *));
+static boolean elf64_alpha_adjust_dynindx
+ PARAMS((struct elf_link_hash_entry *, PTR));
+static boolean elf64_alpha_relocate_section
+ PARAMS((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
+ Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+static boolean elf64_alpha_finish_dynamic_symbol
+ PARAMS((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
+ Elf_Internal_Sym *));
+static boolean elf64_alpha_finish_dynamic_sections
+ PARAMS((bfd *, struct bfd_link_info *));
+static boolean elf64_alpha_final_link
+ PARAMS((bfd *, struct bfd_link_info *));
+
+\f
+#define alpha_elf_tdata(bfd) \
+ ((struct alpha_elf_obj_tdata *)elf_tdata(bfd)->tdata)
+
+struct alpha_elf_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+
+ /* External symbol information. */
+ EXTR esym;
+};
+
+/* Alpha ELF linker hash table. */
+
+struct alpha_elf_link_hash_table
+{
+ struct elf_link_hash_table root;
+};
+
+/* Look up an entry in a Alpha ELF linker hash table. */
+
+#define alpha_elf_link_hash_lookup(table, string, create, copy, follow) \
+ ((struct alpha_elf_link_hash_entry *) \
+ elf_link_hash_lookup (&(table)->root, (string), (create), \
+ (copy), (follow)))
+
+/* Traverse a Alpha ELF linker hash table. */
+
+#define alpha_elf_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the Alpha ELF linker hash table from a link_info structure. */
+
+#define alpha_elf_hash_table(p) \
+ ((struct alpha_elf_link_hash_table *) ((p)->hash))
+
+/* Create an entry in a Alpha ELF linker hash table. */
+
+static struct bfd_hash_entry *
+elf64_alpha_link_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct alpha_elf_link_hash_entry *ret =
+ (struct alpha_elf_link_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == (struct alpha_elf_link_hash_entry *) NULL)
+ ret = ((struct alpha_elf_link_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct alpha_elf_link_hash_entry)));
+ if (ret == (struct alpha_elf_link_hash_entry *) NULL)
+ return (struct bfd_hash_entry *) ret;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct alpha_elf_link_hash_entry *)
+ _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
+ table, string));
+ if (ret != (struct alpha_elf_link_hash_entry *) NULL)
+ {
+ /* Set local fields. */
+ memset (&ret->esym, 0, sizeof (EXTR));
+ /* We use -2 as a marker to indicate that the information has
+ not been set. -1 means there is no associated ifd. */
+ ret->esym.ifd = -2;
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Create a Alpha ELF linker hash table. */
+
+static struct bfd_link_hash_table *
+elf64_alpha_bfd_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct alpha_elf_link_hash_table *ret;
+
+ ret = ((struct alpha_elf_link_hash_table *)
+ bfd_zalloc (abfd, sizeof (struct alpha_elf_link_hash_table)));
+ if (ret == (struct alpha_elf_link_hash_table *) NULL)
+ return NULL;
+
+ if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
+ elf64_alpha_link_hash_newfunc))
+ {
+ bfd_release (abfd, ret);
+ return NULL;
+ }
+
+ return &ret->root.root;
+}
+\f
+
+/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
+ from smaller values. Start with zero, widen, *then* decrement. */
+#define MINUS_ONE (((bfd_vma)0) - 1)
+
+static reloc_howto_type elf64_alpha_howto_table[] =
+{
+ HOWTO (R_ALPHA_NONE, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ elf64_alpha_reloc_nil, /* special_function */
+ "NONE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A 32 bit reference to a symbol. */
+ HOWTO (R_ALPHA_REFLONG, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* special_function */
+ "REFLONG", /* name */
+ false, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 64 bit reference to a symbol. */
+ HOWTO (R_ALPHA_REFQUAD, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* special_function */
+ "REFQUAD", /* name */
+ false, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 32 bit GP relative offset. This is just like REFLONG except
+ that when the value is used the value of the gp register will be
+ added in. */
+ HOWTO (R_ALPHA_GPREL32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* special_function */
+ "GPREL32", /* name */
+ false, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used for an instruction that refers to memory off the GP register. */
+ HOWTO (R_ALPHA_LITERAL, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "LITERAL", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* This reloc only appears immediately following a LITERAL reloc.
+ It identifies a use of the literal. The symbol index is special:
+ 1 means the literal address is in the base register of a memory
+ format instruction; 2 means the literal address is in the byte
+ offset register of a byte-manipulation instruction; 3 means the
+ literal address is in the target register of a jsr instruction.
+ This does not actually do any relocation. */
+ HOWTO (R_ALPHA_LITUSE, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ elf64_alpha_reloc_nil, /* special_function */
+ "LITUSE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Load the gp register. This is always used for a ldah instruction
+ which loads the upper 16 bits of the gp register. The symbol
+ index of the GPDISP instruction is an offset in bytes to the lda
+ instruction that loads the lower 16 bits. The value to use for
+ the relocation is the difference between the GP value and the
+ current location; the load will always be done against a register
+ holding the current address.
+
+ NOTE: Unlike ECOFF, partial inplace relocation is not done. If
+ any offset is present in the instructions, it is an offset from
+ the register to the ldah instruction. This lets us avoid any
+ stupid hackery like inventing a gp value to do partial relocation
+ against. Also unlike ECOFF, we do the whole relocation off of
+ the GPDISP rather than a GPDISP_HI16/GPDISP_LO16 pair. An odd,
+ space consuming bit, that, since all the information was present
+ in the GPDISP_HI16 reloc. */
+ HOWTO (R_ALPHA_GPDISP, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ elf64_alpha_reloc_gpdisp, /* special_function */
+ "GPDISP", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A 21 bit branch. */
+ HOWTO (R_ALPHA_BRADDR, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 21, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "BRADDR", /* name */
+ false, /* partial_inplace */
+ 0x1fffff, /* src_mask */
+ 0x1fffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A hint for a jump to a register. */
+ HOWTO (R_ALPHA_HINT, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 14, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "HINT", /* name */
+ false, /* partial_inplace */
+ 0x3fff, /* src_mask */
+ 0x3fff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* 16 bit PC relative offset. */
+ HOWTO (R_ALPHA_SREL16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "SREL16", /* name */
+ false, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* 32 bit PC relative offset. */
+ HOWTO (R_ALPHA_SREL32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "SREL32", /* name */
+ false, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 64 bit PC relative offset. */
+ HOWTO (R_ALPHA_SREL64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "SREL64", /* name */
+ false, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Push a value on the reloc evaluation stack. */
+ HOWTO (ALPHA_R_OP_PUSH, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ elf64_alpha_reloc_op_push, /* special_function */
+ "OP_PUSH", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Store the value from the stack at the given address. Store it in
+ a bitfield of size r_size starting at bit position r_offset. */
+ HOWTO (ALPHA_R_OP_STORE, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ elf64_alpha_reloc_op_store, /* special_function */
+ "OP_STORE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Subtract the reloc address from the value on the top of the
+ relocation stack. */
+ HOWTO (ALPHA_R_OP_PSUB, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ elf64_alpha_reloc_op_psub, /* special_function */
+ "OP_PSUB", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Shift the value on the top of the relocation stack right by the
+ given value. */
+ HOWTO (ALPHA_R_OP_PRSHIFT, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ elf64_alpha_reloc_op_prshift, /* special_function */
+ "OP_PRSHIFT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Misc ELF relocations. */
+ HOWTO (R_ALPHA_COPY,
+ 0,
+ 0,
+ 0,
+ false,
+ 0,
+ complain_overflow_dont,
+ bfd_elf_generic_reloc,
+ "COPY",
+ false,
+ 0,
+ 0,
+ true),
+
+ HOWTO (R_ALPHA_GLOB_DAT,
+ 0,
+ 0,
+ 0,
+ false,
+ 0,
+ complain_overflow_dont,
+ bfd_elf_generic_reloc,
+ "GLOB_DAT",
+ false,
+ 0,
+ 0,
+ true),
+
+ HOWTO (R_ALPHA_JMP_SLOT,
+ 0,
+ 0,
+ 0,
+ false,
+ 0,
+ complain_overflow_dont,
+ bfd_elf_generic_reloc,
+ "JMP_SLOT",
+ false,
+ 0,
+ 0,
+ true),
+
+ HOWTO (R_ALPHA_RELATIVE,
+ 0,
+ 0,
+ 0,
+ false,
+ 0,
+ complain_overflow_dont,
+ bfd_elf_generic_reloc,
+ "RELATIVE",
+ false,
+ 0,
+ 0,
+ true)
+};
+
+static bfd_reloc_status_type
+elf64_alpha_reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message)
+ bfd *abfd;
+ arelent *reloc;
+ asymbol *sym;
+ PTR data;
+ asection *sec;
+ bfd *output_bfd;
+ char **error_message;
+{
+ if (output_bfd)
+ reloc->address += sec->output_offset;
+ return bfd_reloc_ok;
+}
+
+static bfd_reloc_status_type
+elf64_alpha_do_reloc_gpdisp (abfd, gpdisp, p_ldah, p_lda)
+ bfd *abfd;
+ bfd_vma gpdisp;
+ bfd_byte *p_ldah, *p_lda;
+{
+ bfd_reloc_status_type ret = bfd_reloc_ok;
+ bfd_vma addend;
+ unsigned long i_ldah, i_lda;
+
+ i_ldah = bfd_get_32(abfd, p_ldah);
+ i_lda = bfd_get_32(abfd, p_lda);
+
+ /* Complain if the instructions are not correct. */
+ if (((i_ldah >> 26) & 0x3f) != 0x09
+ || ((i_lda >> 26) & 0x3f) != 0x08)
+ ret = bfd_reloc_dangerous;
+
+ /* Extract the user-supplied offset, mirroring the sign extensions
+ that the instructions perform. */
+ addend = ((i_ldah & 0xffff) << 16) | (i_lda & 0xffff);
+ addend = (addend ^ 0x80008000) - 0x80008000;
+
+ gpdisp += addend;
+
+ if ((bfd_signed_vma)gpdisp < -(bfd_signed_vma)0x80000000
+ || gpdisp >= 0x7fff8000)
+ ret = bfd_reloc_overflow;
+
+ /* compensate for the sign extension again. */
+ i_ldah = ((i_ldah & 0xffff0000)
+ | (((gpdisp >> 16) + ((gpdisp >> 15) & 1)) & 0xffff));
+ i_lda = (i_lda & 0xffff0000) | (gpdisp & 0xffff);
+
+ bfd_put_32 (abfd, i_ldah, p_ldah);
+ bfd_put_32 (abfd, i_lda, p_lda);
+
+ return ret;
+}
+
+static bfd_reloc_status_type
+elf64_alpha_reloc_gpdisp (abfd, reloc_entry, sym, data, input_section,
+ output_bfd, err_msg)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *sym;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **err_msg;
+{
+ bfd_reloc_status_type ret;
+ bfd_vma gp, relocation;
+ bfd_byte *p_ldah, *p_lda;
+
+ /* Don't do anything if we're not doing a final link. */
+ if (output_bfd)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (reloc_entry->address > input_section->_cooked_size ||
+ reloc_entry->address + reloc_entry->addend > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ /* The gp used in the portion of the output object to which this
+ input object belongs is cached on the input bfd. */
+ gp = _bfd_get_gp_value (abfd);
+
+ relocation = (input_section->output_section->vma
+ + input_section->output_offset
+ + reloc_entry->address);
+
+ p_ldah = (bfd_byte *)data + reloc_entry->address;
+ p_lda = p_ldah + reloc_entry->addend;
+
+ ret = elf64_alpha_do_reloc_gpdisp (abfd, gp - relocation, p_ldah, p_lda);
+
+ /* Complain if the instructions are not correct. */
+ if (ret == bfd_reloc_dangerous)
+ {
+ *err_msg = "GPDISP relocation did not find ldah and lda instructions";
+ }
+
+ return ret;
+}
+
+/* Due to the nature of the stack operations, I don't think more
+ that one entry is useful. Test this theory by setting the
+ stack size to a minimum. */
+/* FIXME: BFD should not use static variables. */
+#define OP_STACK_SIZE 1
+static bfd_vma elf64_alpha_op_stack[OP_STACK_SIZE];
+static int elf64_alpha_op_tos;
+
+static bfd_reloc_status_type
+elf64_alpha_reloc_op_push (abfd, reloc_entry, sym, data, input_section,
+ output_bfd, err_msg)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *sym;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **err_msg;
+{
+ bfd_reloc_status_type r = bfd_reloc_ok;
+ bfd_vma value;
+
+ /* Don't do anything if we're not doing a final link. */
+ if (output_bfd)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (elf64_alpha_op_tos >= OP_STACK_SIZE)
+ {
+ *err_msg = "operation stack overflow";
+ return bfd_reloc_dangerous;
+ }
+
+ /* Get the symbol value. */
+ /* FIXME: We should fail if this is a dynamic symbol. Check on that. */
+ if (bfd_is_und_section (sym->section))
+ r = bfd_reloc_undefined;
+ if (bfd_is_com_section (sym->section))
+ value = 0;
+ else
+ value = sym->value;
+ value += sym->section->output_section->vma;
+ value += sym->section->output_offset;
+ value += reloc_entry->addend;
+
+ elf64_alpha_op_stack[elf64_alpha_op_tos++] = value;
+
+ return r;
+}
+
+static bfd_reloc_status_type
+elf64_alpha_reloc_op_store (abfd, reloc_entry, sym, data, input_section,
+ output_bfd, err_msg)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *sym;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **err_msg;
+{
+ int size, offset;
+ bfd_vma value;
+
+ /* Don't do anything before the final link. */
+ if (output_bfd)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (elf64_alpha_op_tos <= 0)
+ {
+ *err_msg = "operation stack underflow";
+ return bfd_reloc_dangerous;
+ }
+
+ /* The offset and size for this reloc are encoded into the addend
+ field by alpha_adjust_reloc_in. */
+ offset = (reloc_entry->addend >> 8) & 0xff;
+ size = reloc_entry->addend & 0xff;
+
+ value = bfd_get_64 (abfd, data + reloc_entry->address);
+ value &= ~((((bfd_vma)1 << size) - 1) << offset);
+ value |= (elf64_alpha_op_stack[--elf64_alpha_op_tos]
+ & (((bfd_vma)1 << size) - 1)) << offset;
+ bfd_put_64 (abfd, value, data + reloc_entry->address);
+
+ return bfd_reloc_ok;
+}
+
+static bfd_reloc_status_type
+elf64_alpha_reloc_op_psub (abfd, reloc_entry, sym, data, input_section,
+ output_bfd, err_msg)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *sym;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **err_msg;
+{
+ bfd_reloc_status_type r;
+ bfd_vma value;
+
+ /* Don't do anything before the final link. */
+ if (output_bfd)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (elf64_alpha_op_tos <= 0)
+ {
+ *err_msg = "operation stack underflow";
+ return bfd_reloc_dangerous;
+ }
+
+ if (bfd_is_und_section (sym->section))
+ r = bfd_reloc_undefined;
+ if (bfd_is_com_section (sym->section))
+ value = 0;
+ else
+ value = sym->value;
+ value += sym->section->output_section->vma;
+ value += sym->section->output_offset;
+ value += reloc_entry->addend;
+
+ elf64_alpha_op_stack[elf64_alpha_op_tos-1] -= value;
+
+ return r;
+}
+
+static bfd_reloc_status_type
+elf64_alpha_reloc_op_prshift (abfd, reloc_entry, sym, data, input_section,
+ output_bfd, err_msg)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *sym;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **err_msg;
+{
+ /* Don't do anything before the final link. */
+ if (output_bfd)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (elf64_alpha_op_tos <= 0)
+ {
+ *err_msg = "operation stack underflow";
+ return bfd_reloc_dangerous;
+ }
+
+ elf64_alpha_op_stack[elf64_alpha_op_tos-1] >>= reloc_entry->addend;
+
+ return bfd_reloc_ok;
+}
+
+/* A mapping from BFD reloc types to Alpha ELF reloc types. */
+
+struct elf_reloc_map
+{
+ bfd_reloc_code_real_type bfd_reloc_val;
+ int elf_reloc_val;
+};
+
+static const struct elf_reloc_map elf64_alpha_reloc_map[] =
+{
+ {BFD_RELOC_NONE, R_ALPHA_NONE},
+ {BFD_RELOC_32, R_ALPHA_REFLONG},
+ {BFD_RELOC_64, R_ALPHA_REFQUAD},
+ {BFD_RELOC_CTOR, R_ALPHA_REFQUAD},
+ {BFD_RELOC_GPREL32, R_ALPHA_GPREL32},
+ {BFD_RELOC_ALPHA_LITERAL, R_ALPHA_LITERAL},
+ {BFD_RELOC_ALPHA_LITUSE, R_ALPHA_LITUSE},
+ {BFD_RELOC_ALPHA_GPDISP, R_ALPHA_GPDISP},
+ {BFD_RELOC_23_PCREL_S2, R_ALPHA_BRADDR},
+ {BFD_RELOC_ALPHA_HINT, R_ALPHA_HINT},
+ {BFD_RELOC_16_PCREL, R_ALPHA_SREL16},
+ {BFD_RELOC_32_PCREL, R_ALPHA_SREL32},
+ {BFD_RELOC_64_PCREL, R_ALPHA_SREL64},
+#if 0
+ {BFD_RELOC_ALPHA_OP_PUSH, R_ALPHA_OP_PUSH},
+ {BFD_RELOC_ALPHA_OP_STORE, R_ALPHA_OP_STORE},
+ {BFD_RELOC_ALPHA_OP_PSUB, R_ALPHA_OP_PSUB},
+ {BFD_RELOC_ALPHA_OP_PRSHIFT, R_ALPHA_OP_PRSHIFT}
+#endif
+};
+
+/* Given a BFD reloc type, return a HOWTO structure. */
+
+static reloc_howto_type *
+elf64_alpha_bfd_reloc_type_lookup (abfd, code)
+ bfd *abfd;
+ bfd_reloc_code_real_type code;
+{
+ const struct elf_reloc_map *i, *e;
+ i = e = elf64_alpha_reloc_map;
+ e += sizeof (elf64_alpha_reloc_map) / sizeof (struct elf_reloc_map);
+ for (; i != e; ++i)
+ {
+ if (i->bfd_reloc_val == code)
+ return &elf64_alpha_howto_table[i->elf_reloc_val];
+ }
+ return 0;
+}
+
+/* Given an Alpha ELF reloc type, fill in an arelent structure. */
+
+static void
+elf64_alpha_info_to_howto (abfd, cache_ptr, dst)
+ bfd *abfd;
+ arelent *cache_ptr;
+ Elf64_Internal_Rela *dst;
+{
+ unsigned r_type;
+
+ r_type = ELF64_R_TYPE(dst->r_info);
+ BFD_ASSERT (r_type < (unsigned int) R_ALPHA_max);
+ cache_ptr->howto = &elf64_alpha_howto_table[r_type];
+}
+\f
+/* PLT/GOT Stuff */
+#define PLT_HEADER_SIZE 32
+#define PLT_HEADER_WORD1 0xc3600000 /* br $27,.+4 */
+#define PLT_HEADER_WORD2 0xa77b000c /* ldq $27,12($27) */
+#define PLT_HEADER_WORD3 0x47ff041f /* nop */
+#define PLT_HEADER_WORD4 0x6b7b0000 /* jmp $27,($27) */
+
+#define PLT_ENTRY_SIZE 12
+#define PLT_ENTRY_WORD1 0x279f0000 /* ldah $28, 0($31) */
+#define PLT_ENTRY_WORD2 0x239c0000 /* lda $28, 0($28) */
+#define PLT_ENTRY_WORD3 0xc3e00000 /* br $31, plt0 */
+
+#define RESERVED_GOT_ENTRIES 1
+
+#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so"
+\f
+/* Set the right machine number for an Alpha ELF file. */
+
+static boolean
+elf64_alpha_object_p (abfd)
+ bfd *abfd;
+{
+ return bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
+}
+\f
+/* Handle a alpha specific section when reading an object file. This
+ is called when elfcode.h finds a section with an unknown type.
+ FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure
+ how to. */
+
+static boolean
+elf64_alpha_section_from_shdr (abfd, hdr, name)
+ bfd *abfd;
+ Elf64_Internal_Shdr *hdr;
+ char *name;
+{
+ asection *newsect;
+
+ /* There ought to be a place to keep ELF backend specific flags, but
+ at the moment there isn't one. We just keep track of the
+ sections by their name, instead. Fortunately, the ABI gives
+ suggested names for all the MIPS specific sections, so we will
+ probably get away with this. */
+ switch (hdr->sh_type)
+ {
+ case SHT_ALPHA_DEBUG:
+ if (strcmp (name, ".mdebug") != 0)
+ return false;
+ break;
+#ifdef ERIC_neverdef
+ case SHT_ALPHA_REGINFO:
+ if (strcmp (name, ".reginfo") != 0
+ || hdr->sh_size != sizeof (Elf64_External_RegInfo))
+ return false;
+ break;
+#endif
+ default:
+ return false;
+ }
+
+ if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
+ return false;
+ newsect = hdr->bfd_section;
+
+ if (hdr->sh_type == SHT_ALPHA_DEBUG)
+ {
+ if (! bfd_set_section_flags (abfd, newsect,
+ (bfd_get_section_flags (abfd, newsect)
+ | SEC_DEBUGGING)))
+ return false;
+ }
+
+#ifdef ERIC_neverdef
+ /* For a .reginfo section, set the gp value in the tdata information
+ from the contents of this section. We need the gp value while
+ processing relocs, so we just get it now. */
+ if (hdr->sh_type == SHT_ALPHA_REGINFO)
+ {
+ Elf64_External_RegInfo ext;
+ Elf64_RegInfo s;
+
+ if (! bfd_get_section_contents (abfd, newsect, (PTR) &ext,
+ (file_ptr) 0, sizeof ext))
+ return false;
+ bfd_alpha_elf64_swap_reginfo_in (abfd, &ext, &s);
+ elf_gp (abfd) = s.ri_gp_value;
+ }
+#endif
+
+ return true;
+}
+
+/* Set the correct type for an Alpha ELF section. We do this by the
+ section name, which is a hack, but ought to work. */
+
+static boolean
+elf64_alpha_fake_sections (abfd, hdr, sec)
+ bfd *abfd;
+ Elf64_Internal_Shdr *hdr;
+ asection *sec;
+{
+ register const char *name;
+
+ name = bfd_get_section_name (abfd, sec);
+
+ if (strcmp (name, ".mdebug") == 0)
+ {
+ hdr->sh_type = SHT_ALPHA_DEBUG;
+ /* In a shared object on Irix 5.3, the .mdebug section has an
+ entsize of 0. FIXME: Does this matter? */
+ if ((abfd->flags & DYNAMIC) != 0 )
+ hdr->sh_entsize = 0;
+ else
+ hdr->sh_entsize = 1;
+ }
+#ifdef ERIC_neverdef
+ else if (strcmp (name, ".reginfo") == 0)
+ {
+ hdr->sh_type = SHT_ALPHA_REGINFO;
+ /* In a shared object on Irix 5.3, the .reginfo section has an
+ entsize of 0x18. FIXME: Does this matter? */
+ if ((abfd->flags & DYNAMIC) != 0)
+ hdr->sh_entsize = sizeof (Elf64_External_RegInfo);
+ else
+ hdr->sh_entsize = 1;
+
+ /* Force the section size to the correct value, even if the
+ linker thinks it is larger. The link routine below will only
+ write out this much data for .reginfo. */
+ hdr->sh_size = sec->_raw_size = sizeof (Elf64_External_RegInfo);
+ }
+ else if (strcmp (name, ".hash") == 0
+ || strcmp (name, ".dynamic") == 0
+ || strcmp (name, ".dynstr") == 0)
+ {
+ hdr->sh_entsize = 0;
+ hdr->sh_info = SIZEOF_ALPHA_DYNSYM_SECNAMES;
+ }
+ else if (strcmp (name, ".sdata") == 0
+ || strcmp (name, ".sbss") == 0
+ || strcmp (name, ".lit4") == 0
+ || strcmp (name, ".lit8") == 0)
+ hdr->sh_flags |= SHF_ALPHA_GPREL;
+#endif
+
+ return true;
+}
+
+static int
+elf64_alpha_additional_program_headers (abfd)
+ bfd *abfd;
+{
+ asection *s;
+ int ret;
+
+ ret = 0;
+
+ s = bfd_get_section_by_name (abfd, ".reginfo");
+ if (s != NULL && (s->flags & SEC_LOAD) != 0)
+ {
+ /* We need a PT_ALPHA_REGINFO segment. */
+ ++ret;
+ }
+
+ if (bfd_get_section_by_name (abfd, ".dynamic") != NULL
+ && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
+ {
+ /* We need a PT_ALPHA_RTPROC segment. */
+ ++ret;
+ }
+
+ return ret;
+}
+
+static boolean
+elf64_alpha_create_got_section(abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ asection *s;
+ struct elf_link_hash_entry *h;
+
+ if (bfd_get_section_by_name (abfd, ".got"))
+ return true;
+
+ s = bfd_make_section(abfd, ".rela.got");
+ if (s == NULL
+ || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_READONLY))
+ || !bfd_set_section_alignment (abfd, s, 3))
+ return false;
+
+ s = bfd_make_section(abfd, ".got");
+ if (s == NULL
+ || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY))
+ || !bfd_set_section_alignment (abfd, s, 3))
+ return false;
+
+ s->_raw_size = RESERVED_GOT_ENTRIES * 8;
+
+ /* 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 = NULL;
+ if (!(_bfd_generic_link_add_one_symbol
+ (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
+ (const char *) NULL, false, get_elf_backend_data (abfd)->collect,
+ (struct bfd_link_hash_entry **) &h)))
+ return false;
+ h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
+ h->type = STT_OBJECT;
+
+ if (info->shared
+ && ! _bfd_elf_link_record_dynamic_symbol (info, h))
+ return false;
+
+ elf_hash_table (info)->hgot = h;
+
+ return true;
+}
+
+static boolean
+elf64_alpha_create_dynamic_sections (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ register asection *s;
+ struct elf_link_hash_entry *h;
+
+ /* We need to create .plt, .rela.plt, .got, and .rela.got sections. */
+
+ s = bfd_make_section (abfd, ".plt");
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_CODE))
+ || ! bfd_set_section_alignment (abfd, s, 3))
+ return false;
+
+ /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
+ .plt section. */
+ h = NULL;
+ if (! (_bfd_generic_link_add_one_symbol
+ (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
+ (bfd_vma) 0, (const char *) NULL, false,
+ get_elf_backend_data (abfd)->collect,
+ (struct bfd_link_hash_entry **) &h)))
+ return false;
+ h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
+ h->type = STT_OBJECT;
+
+ if (info->shared
+ && ! _bfd_elf_link_record_dynamic_symbol (info, h))
+ return false;
+
+ s = bfd_make_section (abfd, ".rela.plt");
+ if (s == NULL
+ || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_READONLY))
+ || ! bfd_set_section_alignment (abfd, s, 3))
+ return false;
+
+ if (!elf64_alpha_create_got_section (abfd, info))
+ return false;
+
+ return true;
+}
+
+/* The structure of the runtile procedure descriptor created by the
+ loader for use by the static exception system. */
+
+/* FIXME */
+\f
+/* Read ECOFF debugging information from a .mdebug section into a
+ ecoff_debug_info structure. */
+
+static boolean
+elf64_alpha_read_ecoff_info (abfd, section, debug)
+ bfd *abfd;
+ asection *section;
+ struct ecoff_debug_info *debug;
+{
+ HDRR *symhdr;
+ const struct ecoff_debug_swap *swap;
+ char *ext_hdr = NULL;
+
+ swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
+
+ ext_hdr = (char *) bfd_malloc ((size_t) swap->external_hdr_size);
+ if (ext_hdr == NULL && swap->external_hdr_size != 0)
+ goto error_return;
+
+ if (bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0,
+ swap->external_hdr_size)
+ == false)
+ goto error_return;
+
+ symhdr = &debug->symbolic_header;
+ (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr);
+
+ /* The symbolic header contains absolute file offsets and sizes to
+ read. */
+#define READ(ptr, offset, count, size, type) \
+ if (symhdr->count == 0) \
+ debug->ptr = NULL; \
+ else \
+ { \
+ debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \
+ if (debug->ptr == NULL) \
+ goto error_return; \
+ if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
+ || (bfd_read (debug->ptr, size, symhdr->count, \
+ abfd) != size * symhdr->count)) \
+ goto error_return; \
+ }
+
+ READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *);
+ READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
+ READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
+ READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
+ READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
+ READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
+ union aux_ext *);
+ READ (ss, cbSsOffset, issMax, sizeof (char), char *);
+ READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *);
+ READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
+ READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
+ READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR);
+#undef READ
+
+ debug->fdr = NULL;
+ debug->adjust = NULL;
+
+ return true;
+
+ error_return:
+ if (ext_hdr != NULL)
+ free (ext_hdr);
+ if (debug->line != NULL)
+ free (debug->line);
+ if (debug->external_dnr != NULL)
+ free (debug->external_dnr);
+ if (debug->external_pdr != NULL)
+ free (debug->external_pdr);
+ if (debug->external_sym != NULL)
+ free (debug->external_sym);
+ if (debug->external_opt != NULL)
+ free (debug->external_opt);
+ if (debug->external_aux != NULL)
+ free (debug->external_aux);
+ if (debug->ss != NULL)
+ free (debug->ss);
+ if (debug->ssext != NULL)
+ free (debug->ssext);
+ if (debug->external_fdr != NULL)
+ free (debug->external_fdr);
+ if (debug->external_rfd != NULL)
+ free (debug->external_rfd);
+ if (debug->external_ext != NULL)
+ free (debug->external_ext);
+ return false;
+}
+
+/* Alpha ELF local labels start with '$'. */
+
+static boolean
+elf64_alpha_is_local_label (abfd, symbol)
+ bfd *abfd;
+ asymbol *symbol;
+{
+ return symbol->name[0] == '$';
+}
+
+/* Alpha ELF follows MIPS ELF in using a special find_nearest_line
+ routine in order to handle the ECOFF debugging information. We
+ still call this mips_elf_find_line because of the slot
+ find_line_info in elf_obj_tdata is declared that way. */
+
+struct mips_elf_find_line
+{
+ struct ecoff_debug_info d;
+ struct ecoff_find_line i;
+};
+
+static boolean
+elf64_alpha_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
+ functionname_ptr, line_ptr)
+ bfd *abfd;
+ asection *section;
+ asymbol **symbols;
+ bfd_vma offset;
+ const char **filename_ptr;
+ const char **functionname_ptr;
+ unsigned int *line_ptr;
+{
+ asection *msec;
+
+ msec = bfd_get_section_by_name (abfd, ".mdebug");
+ if (msec != NULL)
+ {
+ flagword origflags;
+ struct mips_elf_find_line *fi;
+ const struct ecoff_debug_swap * const swap =
+ get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
+
+ /* If we are called during a link, alpha_elf_final_link may have
+ cleared the SEC_HAS_CONTENTS field. We force it back on here
+ if appropriate (which it normally will be). */
+ origflags = msec->flags;
+ if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS)
+ msec->flags |= SEC_HAS_CONTENTS;
+
+ fi = elf_tdata (abfd)->find_line_info;
+ if (fi == NULL)
+ {
+ bfd_size_type external_fdr_size;
+ char *fraw_src;
+ char *fraw_end;
+ struct fdr *fdr_ptr;
+
+ fi = ((struct mips_elf_find_line *)
+ bfd_zalloc (abfd, sizeof (struct mips_elf_find_line)));
+ if (fi == NULL)
+ {
+ msec->flags = origflags;
+ return false;
+ }
+
+ if (!elf64_alpha_read_ecoff_info (abfd, msec, &fi->d))
+ {
+ msec->flags = origflags;
+ return false;
+ }
+
+ /* Swap in the FDR information. */
+ fi->d.fdr = ((struct fdr *)
+ bfd_alloc (abfd,
+ (fi->d.symbolic_header.ifdMax *
+ sizeof (struct fdr))));
+ if (fi->d.fdr == NULL)
+ {
+ msec->flags = origflags;
+ return false;
+ }
+ external_fdr_size = swap->external_fdr_size;
+ fdr_ptr = fi->d.fdr;
+ fraw_src = (char *) fi->d.external_fdr;
+ fraw_end = (fraw_src
+ + fi->d.symbolic_header.ifdMax * external_fdr_size);
+ for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
+ (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
+
+ elf_tdata (abfd)->find_line_info = fi;
+
+ /* Note that we don't bother to ever free this information.
+ find_nearest_line is either called all the time, as in
+ objdump -l, so the information should be saved, or it is
+ rarely called, as in ld error messages, so the memory
+ wasted is unimportant. Still, it would probably be a
+ good idea for free_cached_info to throw it away. */
+ }
+
+ if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap,
+ &fi->i, filename_ptr, functionname_ptr,
+ line_ptr))
+ {
+ msec->flags = origflags;
+ return true;
+ }
+
+ msec->flags = origflags;
+ }
+
+ /* Fall back on the generic ELF find_nearest_line routine. */
+
+ return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr,
+ line_ptr);
+}
+\f
+/* Structure used to pass information to alpha_elf_output_extsym. */
+
+struct extsym_info
+{
+ bfd *abfd;
+ struct bfd_link_info *info;
+ struct ecoff_debug_info *debug;
+ const struct ecoff_debug_swap *swap;
+ boolean failed;
+};
+
+static boolean
+elf64_alpha_output_extsym (h, data)
+ struct alpha_elf_link_hash_entry *h;
+ PTR data;
+{
+ struct extsym_info *einfo = (struct extsym_info *) data;
+ boolean strip;
+ asection *sec, *output_section;
+
+ if (h->root.indx == -2)
+ strip = false;
+ else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)
+ && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
+ && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
+ strip = true;
+ else if (einfo->info->strip == strip_all
+ || (einfo->info->strip == strip_some
+ && bfd_hash_lookup (einfo->info->keep_hash,
+ h->root.root.root.string,
+ false, false) == NULL))
+ strip = true;
+ else
+ strip = false;
+
+ if (strip)
+ return true;
+
+ if (h->esym.ifd == -2)
+ {
+ h->esym.jmptbl = 0;
+ h->esym.cobol_main = 0;
+ h->esym.weakext = 0;
+ h->esym.reserved = 0;
+ h->esym.ifd = ifdNil;
+ h->esym.asym.value = 0;
+ h->esym.asym.st = stGlobal;
+
+ if (h->root.root.type != bfd_link_hash_defined
+ && h->root.root.type != bfd_link_hash_defweak)
+ h->esym.asym.sc = scAbs;
+ else
+ {
+ const char *name;
+
+ sec = h->root.root.u.def.section;
+ output_section = sec->output_section;
+
+ /* When making a shared library and symbol h is the one from
+ the another shared library, OUTPUT_SECTION may be null. */
+ if (output_section == NULL)
+ h->esym.asym.sc = scUndefined;
+ else
+ {
+ name = bfd_section_name (output_section->owner, output_section);
+
+ if (strcmp (name, ".text") == 0)
+ h->esym.asym.sc = scText;
+ else if (strcmp (name, ".data") == 0)
+ h->esym.asym.sc = scData;
+ else if (strcmp (name, ".sdata") == 0)
+ h->esym.asym.sc = scSData;
+ else if (strcmp (name, ".rodata") == 0
+ || strcmp (name, ".rdata") == 0)
+ h->esym.asym.sc = scRData;
+ else if (strcmp (name, ".bss") == 0)
+ h->esym.asym.sc = scBss;
+ else if (strcmp (name, ".sbss") == 0)
+ h->esym.asym.sc = scSBss;
+ else if (strcmp (name, ".init") == 0)
+ h->esym.asym.sc = scInit;
+ else if (strcmp (name, ".fini") == 0)
+ h->esym.asym.sc = scFini;
+ else
+ h->esym.asym.sc = scAbs;
+ }
+ }
+
+ h->esym.asym.reserved = 0;
+ h->esym.asym.index = indexNil;
+ }
+
+ if (h->root.root.type == bfd_link_hash_common)
+ h->esym.asym.value = h->root.root.u.c.size;
+ else if (h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ {
+ if (h->esym.asym.sc == scCommon)
+ h->esym.asym.sc = scBss;
+ else if (h->esym.asym.sc == scSCommon)
+ h->esym.asym.sc = scSBss;
+
+ sec = h->root.root.u.def.section;
+ output_section = sec->output_section;
+ if (output_section != NULL)
+ h->esym.asym.value = (h->root.root.u.def.value
+ + sec->output_offset
+ + output_section->vma);
+ else
+ h->esym.asym.value = 0;
+ }
+ else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ {
+ /* Set type and value for a symbol with a function stub. */
+ h->esym.asym.st = stProc;
+ sec = h->root.root.u.def.section;
+ if (sec == NULL)
+ h->esym.asym.value = 0;
+ else
+ {
+ output_section = sec->output_section;
+ if (output_section != NULL)
+ h->esym.asym.value = (h->root.plt_offset
+ + sec->output_offset
+ + output_section->vma);
+ else
+ h->esym.asym.value = 0;
+ }
+#if 0 /* FIXME? */
+ h->esym.ifd = 0;
+#endif
+ }
+
+ if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
+ h->root.root.root.string,
+ &h->esym))
+ {
+ einfo->failed = true;
+ return false;
+ }
+
+ return true;
+}
+
+/* FIXME: Create a runtime procedure table from the .mdebug section.
+
+static boolean
+mips_elf_create_procedure_table (handle, abfd, info, s, debug)
+ PTR handle;
+ bfd *abfd;
+ struct bfd_link_info *info;
+ asection *s;
+ struct ecoff_debug_info *debug;
+ */
+
+\f
+static boolean
+elf64_alpha_check_relocs (abfd, info, sec, relocs)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
+{
+ bfd *dynobj;
+ asection *sgot;
+ asection *srelgot;
+ asection *sreloc;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ const Elf_Internal_Rela *rel, *relend;
+
+ if (info->relocateable)
+ return true;
+
+ sgot = srelgot = sreloc = NULL;
+ symtab_hdr = &elf_tdata(abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes(abfd);
+ dynobj = elf_hash_table(info)->dynobj;
+ if (dynobj)
+ {
+ sgot = bfd_get_section_by_name(dynobj, ".got");
+ srelgot = bfd_get_section_by_name(dynobj, ".rela.got");
+ }
+
+ relend = relocs + sec->reloc_count;
+ for (rel = relocs; rel < relend; ++rel)
+ {
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+
+ r_symndx = ELF64_R_SYM(rel->r_info);
+ if (r_symndx < symtab_hdr->sh_info)
+ h = NULL;
+ else
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+
+ switch (ELF64_R_TYPE(rel->r_info))
+ {
+ case R_ALPHA_LITERAL:
+ /* If this is a load of a function symbol and we are building a
+ shared library or calling a shared library, then we need a
+ .plt entry as well.
+
+ We can tell if it is a function either by noticing the
+ type of the symbol, or, if the type is undefined, by
+ noticing that we have a LITUSE(3) reloc next.
+
+ Note that it is not fatal to be wrong guessing that a symbol
+ is an object, but it is fatal to be wrong guessing that a
+ symbol is a function.
+
+ Furthermore, the .plt trampoline cannot abide by weak
+ symbols that turn out to be undefined. */
+
+ if (h
+ && h->root.type != bfd_link_hash_undefweak
+ && (info->shared
+ || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ && (h->type == STT_FUNC
+ || (h->type == STT_NOTYPE
+ && rel+1 < relend
+ && ELF64_R_TYPE(rel[1].r_info) == R_ALPHA_LITUSE
+ && rel[1].r_addend == 3)))
+ {
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ }
+
+ if (dynobj == NULL)
+ {
+ elf_hash_table(info)->dynobj = dynobj = abfd;
+
+ /* Create the .got section. */
+ if (!elf64_alpha_create_got_section(dynobj, info))
+ return false;
+
+ sgot = bfd_get_section_by_name(dynobj, ".got");
+ srelgot = bfd_get_section_by_name(dynobj, ".rela.got");
+ }
+
+ if (h != NULL)
+ {
+ if (h->got_offset != MINUS_ONE)
+ {
+ /* We have already allocated space in this .got. */
+ break;
+ }
+
+ /* Make sure this becomes a dynamic symbol. */
+ if (h->dynindx == -1
+ && !_bfd_elf_link_record_dynamic_symbol(info, h))
+ return false;
+
+ /* Reserve space for a reloc even if we won't use it. */
+ srelgot->_raw_size += sizeof(Elf64_External_Rela);
+
+ /* Create the relocation in adjust_dynamic_symbol */
+
+ h->got_offset = sgot->_raw_size;
+ sgot->_raw_size += 8;
+ }
+ else
+ {
+ bfd_vma *lgotoff = elf_local_got_offsets(abfd);
+ if (lgotoff == NULL)
+ {
+ size_t size;
+
+ size = elf_tdata(abfd)->symtab_hdr.sh_info * sizeof(bfd_vma);
+ lgotoff = (bfd_vma *)bfd_alloc(abfd, size);
+ if (lgotoff == NULL)
+ return false;
+
+ elf_local_got_offsets(abfd) = lgotoff;
+ memset(lgotoff, -1, size);
+ }
+
+ if (lgotoff[ELF64_R_SYM(rel->r_info)] != MINUS_ONE)
+ {
+ /* We have already allocated space in the .got. */
+ break;
+ }
+ lgotoff[ELF64_R_SYM(rel->r_info)] = sgot->_raw_size;
+ sgot->_raw_size += 8;
+
+ if (info->shared)
+ {
+ /* If we are generating a shared object, we need to
+ output a R_ALPHA_RELATIVE reloc so that the dynamic
+ linker can adjust this GOT entry. */
+ srelgot->_raw_size += sizeof(Elf64_External_Rela);
+ }
+ }
+ break;
+
+ case R_ALPHA_SREL16:
+ case R_ALPHA_SREL32:
+ case R_ALPHA_SREL64:
+ if (h == NULL)
+ break;
+ /* FALLTHRU */
+
+ case R_ALPHA_REFLONG:
+ case R_ALPHA_REFQUAD:
+ if (info->shared
+ || (h && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ {
+ /* When creating a shared object or referring to a symbol in
+ a shared object, we must copy these relocs into the
+ object file. We create a reloc section in dynobj and
+ make room for the reloc. */
+ if (sreloc == NULL)
+ {
+ const char *name;
+ name = (bfd_elf_string_from_elf_section
+ (abfd, elf_elfheader(abfd)->e_shstrndx,
+ elf_section_data(sec)->rel_hdr.sh_name));
+ if (name == NULL)
+ return false;
+
+ BFD_ASSERT(strncmp(name, ".rela", 5) == 0
+ && strcmp(bfd_get_section_name(abfd, sec),
+ name+5) == 0);
+
+ sreloc = bfd_get_section_by_name(dynobj, name);
+ if (sreloc == NULL)
+ {
+ sreloc = bfd_make_section(dynobj, name);
+ if (sreloc == NULL
+ || !bfd_set_section_flags(dynobj, sreloc,
+ (SEC_ALLOC|SEC_LOAD
+ |SEC_HAS_CONTENTS
+ |SEC_IN_MEMORY
+ |SEC_READONLY))
+ || !bfd_set_section_alignment(dynobj, sreloc, 3))
+ return false;
+ }
+ }
+ sreloc->_raw_size += sizeof(Elf64_External_Rela);
+ }
+ break;
+ }
+ }
+
+ 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 boolean
+elf64_alpha_adjust_dynamic_symbol (info, h)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+{
+ bfd *dynobj;
+ asection *s;
+
+ dynobj = elf_hash_table(info)->dynobj;
+
+ /* If this is a function, put it in the procedure linkage table. We
+ will fill in the contents of the procedure linkage table later,
+ though we could actually do it here. */
+
+ if (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
+ {
+ /* We hadn't seen all of the input symbols when we guessed that we
+ needed a .plt entry. Revise our decision. */
+ if (!info->shared
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ return true;
+ }
+
+ s = bfd_get_section_by_name(dynobj, ".plt");
+ BFD_ASSERT(s != NULL);
+
+ /* The first bit of the .plt is reserved. */
+ if (s->_raw_size == 0)
+ s->_raw_size = PLT_HEADER_SIZE;
+
+ h->plt_offset = s->_raw_size;
+
+ /* If this symbol is not defined in a regular file, and we are not
+ generating a shared library, then set the symbol to the location
+ in the .plt. This is required to make function pointers compare
+ equal between the normal executable and the shared library. */
+ if (!info->shared)
+ {
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->_raw_size;
+ }
+
+ s->_raw_size += PLT_ENTRY_SIZE;
+
+ /* We also need an entry in the .rela.plt section. */
+ s = bfd_get_section_by_name(dynobj, ".rela.plt");
+ BFD_ASSERT(s != NULL);
+ s->_raw_size += sizeof(Elf64_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->weakdef != NULL)
+ {
+ BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
+ || h->weakdef->root.type == bfd_link_hash_defweak);
+ h->root.u.def.section = h->weakdef->root.u.def.section;
+ h->root.u.def.value = h->weakdef->root.u.def.value;
+ return true;
+ }
+
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. The Alpha, since it uses .got entries for
+ symbols even in regular objects, does not need the hackery of a
+ .dynbss section and COPY dynamic relocations. */
+
+ return true;
+}
+
+/* Set the sizes of the dynamic sections. */
+
+static boolean
+elf64_alpha_size_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ bfd *dynobj;
+ asection *s;
+ boolean reltext;
+ boolean relplt;
+
+ 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->shared)
+ {
+ s = bfd_get_section_by_name(dynobj, ".interp");
+ BFD_ASSERT(s != NULL);
+ s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
+ s->contents = (unsigned char *)ELF_DYNAMIC_INTERPRETER;
+ }
+ }
+ else
+ {
+ /* We may have created entries in the .rela.got section.
+ However, if we are not creating the dynamic sections, we will
+ not actually use these entries. Reset the size of .rel.got,
+ which will cause it to get stripped from the output file
+ below. */
+ s = bfd_get_section_by_name (dynobj, ".rela.got");
+ if (s != NULL)
+ s->_raw_size = 0;
+ }
+
+ /* The check_relocs and adjust_dynamic_symbol entry points have
+ determined the sizes of the various dynamic sections. Allocate
+ memory for them. */
+ reltext = false;
+ relplt = false;
+ for (s = dynobj->sections; s != NULL; s = s->next)
+ {
+ const char *name;
+ boolean strip;
+
+ if (!(s->flags & SEC_IN_MEMORY))
+ 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 we don't need this section, strip it from the output file.
+ This is to handle .rela.bss and .rela.plt. We must create it
+ in create_dynamic_sections, because it must be created before
+ the linker maps input sections to output sections. The
+ linker does that before adjust_dynamic_symbol is called, and
+ it is that function which decides whether anything needs to
+ go into these sections. */
+
+ strip = false;
+
+ if (strncmp(name, ".rela", 5) == 0)
+ {
+ strip = (s->_raw_size == 0);
+
+ if (!strip)
+ {
+ asection *target;
+
+ /* If this relocation section applies to a read only
+ section, then we probably need a DT_TEXTREL entry. */
+ target = bfd_get_section_by_name (output_bfd, name + 5);
+ if (target != NULL
+ && (target->flags & SEC_READONLY) != 0)
+ reltext = true;
+
+ if (strcmp(name, ".rela.plt") == 0)
+ relplt = 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 (strcmp(name, ".got") == 0)
+ {
+ /* If we are generating a shared library, we generate a
+ section symbol for each output section. These are local
+ symbols, which means that they must come first in the
+ dynamic symbol table. That means we must increment the
+ dynamic symbol index of every other dynamic symbol. */
+ if (info->shared)
+ {
+ long c[2], i;
+ asection *p;
+
+ c[0] = 0;
+ c[1] = bfd_count_sections(output_bfd);
+
+ elf_link_hash_traverse (elf_hash_table(info),
+ elf64_alpha_adjust_dynindx,
+ (PTR)c);
+ elf_hash_table (info)->dynsymcount += c[1];
+
+ for (i = 3, p = output_bfd->sections;
+ p != NULL;
+ p = p->next, i++)
+ {
+ elf_section_data (p)->dynindx = i;
+ /* These symbols will have no names, so we don't need to
+ fiddle with dynstr_index. */
+ }
+ }
+ }
+ else if (strcmp (name, ".plt") != 0)
+ {
+ /* It's not one of our sections, so don't allocate space. */
+ continue;
+ }
+
+ if (strip)
+ {
+ asection **spp;
+
+ for (spp = &s->output_section->owner->sections;
+ *spp != s->output_section;
+ spp = &(*spp)->next)
+ continue;
+ *spp = s->output_section->next;
+ --s->output_section->owner->section_count;
+
+ continue;
+ }
+
+ /* Allocate memory for the section contents. */
+ s->contents = (bfd_byte *) bfd_zalloc(dynobj, s->_raw_size);
+ if (s->contents == NULL && s->_raw_size != 0)
+ return false;
+ }
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in elf64_alpha_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->shared)
+ {
+ if (!bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0))
+ return false;
+ }
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0))
+ return false;
+
+ if (relplt)
+ {
+ if (! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0)
+ || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
+ || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0))
+ return false;
+ }
+
+ if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0)
+ || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0)
+ || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT,
+ sizeof(Elf64_External_Rela)))
+ return false;
+
+ if (reltext)
+ {
+ if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0))
+ return false;
+ }
+ }
+
+ return true;
+}
+
+/* Increment the index of a dynamic symbol by a given amount. Called
+ via elf_link_hash_traverse. */
+
+static boolean
+elf64_alpha_adjust_dynindx (h, cparg)
+ struct elf_link_hash_entry *h;
+ PTR cparg;
+{
+ long *cp = (long *)cparg;
+
+ if (h->dynindx >= cp[0])
+ h->dynindx += cp[1];
+
+ return true;
+}
+
+/* Relocate an Alpha ELF section. */
+
+static boolean
+elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ 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;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+ asection *sec, *sgot, *splt;
+ bfd *dynobj;
+ bfd_vma gp;
+
+ symtab_hdr = &elf_tdata(input_bfd)->symtab_hdr;
+
+ /* Find the gp value for this input bfd. */
+ sgot = NULL;
+ gp = 0;
+ dynobj = elf_hash_table(info)->dynobj;
+ if (dynobj)
+ {
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+
+ gp = _bfd_get_gp_value(dynobj);
+ if (gp == 0)
+ {
+ gp = (sgot->output_section->vma
+ + sgot->output_offset
+ + 0x8000);
+ _bfd_set_gp_value(dynobj, gp);
+ }
+ }
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ int r_type;
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+ bfd_vma relocation;
+ bfd_vma addend;
+ bfd_reloc_status_type r;
+
+ r_type = ELF64_R_TYPE(rel->r_info);
+ if (r_type < 0 || r_type >= (int) R_ALPHA_max)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ howto = elf64_alpha_howto_table + r_type;
+
+ r_symndx = ELF64_R_SYM(rel->r_info);
+
+ if (info->relocateable)
+ {
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
+ {
+ sec = local_sections[r_symndx];
+ rel->r_addend += sec->output_offset + sym->st_value;
+ }
+ }
+
+ continue;
+ }
+
+ /* This is a final link. */
+
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+ relocation = (sec->output_section->vma
+ + sec->output_offset
+ + sym->st_value);
+ }
+ else
+ {
+ h = elf_sym_hashes(input_bfd)[r_symndx - symtab_hdr->sh_info];
+
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *)h->root.u.i.link;
+
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ sec = h->root.u.def.section;
+
+ /* If the symbol was defined as a common symbol in a
+ regular object file, and there was no definition in
+ any dynamic object, then the linker will have
+ allocated space for the symbol in a common section
+ but the ELF_LINK_HASH_DEF_REGULAR flag will not have
+ been set. This is done for dynamic symbols in
+ elf_adjust_dynamic_symbol but this is not done for
+ non-dynamic symbols, somehow. */
+ if ((h->elf_link_hash_flags
+ & (ELF_LINK_HASH_DEF_REGULAR
+ | ELF_LINK_HASH_REF_REGULAR
+ | ELF_LINK_HASH_DEF_DYNAMIC))
+ == ELF_LINK_HASH_REF_REGULAR
+ && !(sec->owner->flags & DYNAMIC))
+ h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
+
+#if rth_notdef
+ if ((r_type == R_ALPHA_LITERAL
+ && elf_hash_table(info)->dynamic_sections_created
+ && (!info->shared
+ || !info->symbolic
+ || !(h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR)))
+ || (info->shared
+ && (!info->symbolic
+ || !(h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR))
+ && (input_section->flags & SEC_ALLOC)
+ && (r_type == R_ALPHA_REFLONG
+ || r_type == R_ALPHA_REFQUAD
+ || r_type == R_ALPHA_LITERAL)))
+ {
+ /* In these cases, we don't need the relocation value.
+ We check specially because in some obscure cases
+ sec->output_section will be NULL. */
+ relocation = 0;
+ }
+#else
+ /* FIXME: Are not these obscure cases simply bugs? Let's
+ get something working and come back to this. */
+ if (sec->output_section == NULL)
+ relocation = 0;
+#endif /* rth_notdef */
+ else
+ {
+ relocation = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ }
+ }
+ else if (h->root.type == bfd_link_hash_undefweak)
+ relocation = 0;
+ else if (info->shared && !info->symbolic)
+ relocation = 0;
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset)))
+ return false;
+ relocation = 0;
+ }
+ }
+ addend = rel->r_addend;
+
+ switch (r_type)
+ {
+ case R_ALPHA_GPDISP:
+ {
+ bfd_byte *p_ldah, *p_lda;
+
+ relocation = (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset);
+
+ p_ldah = contents + rel->r_offset - input_section->vma;
+ p_lda = p_ldah + rel->r_addend;
+
+ r = elf64_alpha_do_reloc_gpdisp (input_bfd, gp - relocation,
+ p_ldah, p_lda);
+ }
+ break;
+
+ case R_ALPHA_OP_PUSH:
+ case R_ALPHA_OP_STORE:
+ case R_ALPHA_OP_PSUB:
+ case R_ALPHA_OP_PRSHIFT:
+ /* FIXME */
+ abort();
+
+ case R_ALPHA_LITERAL:
+ {
+ bfd_vma gotoff;
+
+ BFD_ASSERT(gp != 0);
+ BFD_ASSERT(sgot != NULL);
+ if (h != NULL)
+ {
+ gotoff = h->got_offset;
+ }
+ else
+ {
+ gotoff = elf_local_got_offsets (input_bfd)[r_symndx];
+
+ /* Use the lsb as a flag indicating that we've already
+ output the relocation entry. */
+ if (info->shared)
+ if (gotoff & 1)
+ gotoff &= ~(bfd_vma)1;
+ else
+ {
+ asection *srel;
+ Elf_Internal_Rela outrel;
+
+ srel = bfd_get_section_by_name (dynobj, ".rela.got");
+ BFD_ASSERT(srel != NULL);
+
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset + gotoff);
+ outrel.r_info = ELF64_R_INFO(0, R_ALPHA_RELATIVE);
+ outrel.r_addend = 0;
+
+ bfd_elf64_swap_reloca_out (output_bfd, &outrel,
+ ((Elf64_External_Rela *)
+ srel->contents)
+ + srel->reloc_count++);
+
+ elf_local_got_offsets (input_bfd)[r_symndx] |= 1;
+ }
+ }
+
+ /* Initialize the .got entry. */
+ bfd_put_64 (output_bfd, relocation, sgot->contents + gotoff);
+
+ /* Figure the gprel relocation. */
+ addend = 0;
+ relocation = (sgot->output_section->vma
+ + sgot->output_offset
+ + gotoff);
+ relocation -= gp;
+ }
+ /* overflow handled by _bfd_final_link_relocate */
+ goto default_reloc;
+
+ case R_ALPHA_GPREL32:
+ BFD_ASSERT(gp != 0);
+ relocation -= gp;
+ goto default_reloc;
+
+ case R_ALPHA_BRADDR:
+ case R_ALPHA_HINT:
+ /* The regular PC-relative stuff measures from the start of
+ the instruction rather than the end. */
+ addend -= 4;
+ goto default_reloc;
+
+ case R_ALPHA_REFLONG:
+ case R_ALPHA_REFQUAD:
+ if (info->shared
+ || (h && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ {
+ asection *srel;
+ const char *name;
+ Elf_Internal_Rela outrel;
+
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd, elf_elfheader(input_bfd)->e_shstrndx,
+ elf_section_data(input_section)->rel_hdr.sh_name));
+ BFD_ASSERT(name != NULL);
+
+ srel = bfd_get_section_by_name(dynobj, name);
+ BFD_ASSERT(srel != NULL);
+
+ outrel.r_offset = (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset);
+ outrel.r_addend = 0;
+ if (h)
+ {
+ BFD_ASSERT(h->dynindx != -1);
+ outrel.r_info = ELF64_R_INFO(h->dynindx, r_type);
+ relocation = 0;
+ }
+ else
+ {
+ outrel.r_info = ELF64_R_INFO(0, R_ALPHA_RELATIVE);
+ }
+
+ bfd_elf64_swap_reloca_out (output_bfd, &outrel,
+ ((Elf64_External_Rela *)
+ srel->contents)
+ + srel->reloc_count++);
+ }
+ goto default_reloc;
+
+ default:
+ default_reloc:
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset, relocation,
+ addend);
+ break;
+ }
+
+ switch (r)
+ {
+ case bfd_reloc_ok:
+ break;
+
+ case bfd_reloc_overflow:
+ {
+ const char *name;
+
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name));
+ if (name == NULL)
+ return false;
+ if (*name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
+ }
+ break;
+
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ }
+ }
+
+ return true;
+}
+
+/* Finish up dynamic symbol handling. We set the contents of various
+ dynamic sections here. */
+
+static boolean
+elf64_alpha_finish_dynamic_symbol (output_bfd, info, h, sym)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+{
+ bfd *dynobj = elf_hash_table(info)->dynobj;
+
+ if (h->plt_offset != MINUS_ONE)
+ {
+ asection *splt, *sgot, *srel;
+ Elf_Internal_Rela outrel;
+ bfd_vma got_addr, plt_addr;
+ bfd_vma plt_index;
+
+ /* This symbol has an entry in the procedure linkage table. */
+
+ BFD_ASSERT(h->dynindx != -1);
+ BFD_ASSERT(h->got_offset != MINUS_ONE);
+
+ splt = bfd_get_section_by_name(dynobj, ".plt");
+ BFD_ASSERT(splt != NULL);
+ srel = bfd_get_section_by_name(dynobj, ".rela.plt");
+ BFD_ASSERT(srel != NULL);
+ sgot = bfd_get_section_by_name(dynobj, ".got");
+ BFD_ASSERT(sgot != NULL);
+
+ got_addr = (sgot->output_section->vma
+ + sgot->output_offset
+ + h->got_offset);
+ plt_addr = (splt->output_section->vma
+ + splt->output_offset
+ + h->plt_offset);
+
+ plt_index = (h->plt_offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
+
+ /* Fill in the entry in the procedure linkage table. */
+ {
+ unsigned insn1, insn2, insn3;
+ long hi, lo;
+
+ /* decompose the reloc offset for the plt for ldah+lda */
+ hi = plt_index * sizeof(Elf64_External_Rela);
+ lo = ((hi & 0xffff) ^ 0x8000) - 0x8000;
+ hi = (hi - lo) >> 16;
+
+ insn1 = PLT_ENTRY_WORD1 | (hi & 0xffff);
+ insn2 = PLT_ENTRY_WORD2 | (lo & 0xffff);
+ insn3 = PLT_ENTRY_WORD3 | ((-(h->plt_offset + 12) >> 2) & 0x1fffff);
+
+ bfd_put_32 (output_bfd, insn1, splt->contents + h->plt_offset);
+ bfd_put_32 (output_bfd, insn2, splt->contents + h->plt_offset + 4);
+ bfd_put_32 (output_bfd, insn3, splt->contents + h->plt_offset + 8);
+ }
+
+ /* Fill in the entry in the .rela.plt section. */
+ outrel.r_offset = got_addr;
+ outrel.r_info = ELF64_R_INFO(h->dynindx, R_ALPHA_JMP_SLOT);
+ outrel.r_addend = 0;
+
+ bfd_elf64_swap_reloca_out (output_bfd, &outrel,
+ ((Elf64_External_Rela *)srel->contents
+ + plt_index));
+
+ if (!(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ {
+ /* Mark the symbol as undefined, rather than as defined in the
+ .plt section. Leave the value alone. */
+ sym->st_shndx = SHN_UNDEF;
+ }
+
+ /* Fill in the entry in the global offset table. */
+ bfd_put_64 (output_bfd, plt_addr, sgot->contents + h->got_offset);
+ }
+ else if (h->got_offset != MINUS_ONE)
+ {
+ asection *sgot, *srel;
+ Elf_Internal_Rela outrel;
+
+ BFD_ASSERT(h->dynindx != -1);
+
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
+ srel = bfd_get_section_by_name (dynobj, ".rela.got");
+ BFD_ASSERT (srel != NULL);
+
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + h->got_offset);
+ outrel.r_addend = 0;
+ if (info->shared
+ && info->symbolic
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ outrel.r_info = ELF64_R_INFO(0, R_ALPHA_RELATIVE);
+ else
+ {
+ bfd_put_64(output_bfd, (bfd_vma)0, sgot->contents + h->got_offset);
+ outrel.r_info = ELF64_R_INFO(h->dynindx, R_ALPHA_GLOB_DAT);
+ }
+
+ bfd_elf64_swap_reloca_out (output_bfd, &outrel,
+ ((Elf64_External_Rela *)srel->contents
+ + srel->reloc_count++));
+ }
+
+ /* Mark some specially defined symbols as absolute. */
+ if (strcmp (h->root.root.string, "_DYNAMIC") == 0
+ || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
+ || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
+ sym->st_shndx = SHN_ABS;
+
+ return true;
+}
+
+/* Finish up the dynamic sections. */
+
+static boolean
+elf64_alpha_finish_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ bfd *dynobj;
+ asection *sdyn;
+ asection *sgot;
+
+ dynobj = elf_hash_table (info)->dynobj;
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ asection *splt;
+ Elf64_External_Dyn *dyncon, *dynconend;
+
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (splt != NULL && sdyn != NULL);
+
+ dyncon = (Elf64_External_Dyn *) sdyn->contents;
+ dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
+ for (; dyncon < dynconend; dyncon++)
+ {
+ Elf_Internal_Dyn dyn;
+ const char *name;
+ asection *s;
+
+ bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
+
+ switch (dyn.d_tag)
+ {
+ case DT_PLTGOT:
+ name = ".plt";
+ goto get_vma;
+ case DT_PLTRELSZ:
+ name = ".rela.plt";
+ goto get_size;
+ case DT_JMPREL:
+ name = ".rela.plt";
+ goto get_vma;
+
+ case DT_RELASZ:
+ /* My interpretation of the TIS v1.1 ELF document indicates
+ that RELASZ should not include JMPREL. This is not what
+ the rest of the BFD does. It is, however, what the
+ glibc ld.so wants. Do this fixup here until we found
+ out who is right. */
+ s = bfd_get_section_by_name (output_bfd, ".rela.plt");
+ if (s)
+ {
+ dyn.d_un.d_val -=
+ (s->_cooked_size ? s->_cooked_size : s->_raw_size);
+ }
+ break;
+
+ get_vma:
+ s = bfd_get_section_by_name (output_bfd, name);
+ dyn.d_un.d_ptr = (s ? s->vma : 0);
+ break;
+
+ get_size:
+ s = bfd_get_section_by_name (output_bfd, name);
+ dyn.d_un.d_val =
+ (s->_cooked_size ? s->_cooked_size : s->_raw_size);
+ break;
+ }
+
+ bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
+ }
+
+ /* Initialize the PLT0 entry */
+ if (splt->_raw_size > 0)
+ {
+ bfd_put_32 (output_bfd, PLT_HEADER_WORD1, splt->contents);
+ bfd_put_32 (output_bfd, PLT_HEADER_WORD2, splt->contents + 4);
+ bfd_put_32 (output_bfd, PLT_HEADER_WORD3, splt->contents + 8);
+ bfd_put_32 (output_bfd, PLT_HEADER_WORD4, splt->contents + 12);
+
+ /* The next two words will be filled in by ld.so */
+ bfd_put_64 (output_bfd, 0, splt->contents + 16);
+ bfd_put_64 (output_bfd, 0, splt->contents + 24);
+
+ elf_section_data (splt->output_section)->this_hdr.sh_entsize =
+ PLT_HEADER_SIZE;
+ }
+ }
+
+ /* Set the first entry in the global offset table to the address of
+ the dynamic section. */
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ if (sgot && sgot->_raw_size > 0)
+ {
+ if (sdyn == NULL)
+ bfd_put_64 (output_bfd, (bfd_vma)0, sgot->contents);
+ else
+ bfd_put_64 (output_bfd,
+ sdyn->output_section->vma + sdyn->output_offset,
+ sgot->contents);
+
+ elf_section_data (sgot->output_section)->this_hdr.sh_entsize =
+ 8 * RESERVED_GOT_ENTRIES;
+ }
+
+ if (info->shared)
+ {
+ asection *sdynsym;
+ asection *s;
+ Elf_Internal_Sym sym;
+
+ /* Set up the section symbols for the output sections. */
+
+ sdynsym = bfd_get_section_by_name (dynobj, ".dynsym");
+ BFD_ASSERT (sdynsym != NULL);
+
+ sym.st_size = 0;
+ sym.st_name = 0;
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
+ sym.st_other = 0;
+
+ for (s = output_bfd->sections; s != NULL; s = s->next)
+ {
+ int indx;
+
+ sym.st_value = s->vma;
+
+ indx = elf_section_data (s)->this_idx;
+ BFD_ASSERT (indx > 0);
+ sym.st_shndx = indx;
+
+ bfd_elf64_swap_symbol_out (output_bfd, &sym,
+ (PTR) (((Elf64_External_Sym *)
+ sdynsym->contents)
+ + elf_section_data (s)->dynindx));
+ }
+
+ /* Set the sh_info field of the output .dynsym section to the
+ index of the first global symbol. */
+ elf_section_data (sdynsym->output_section)->this_hdr.sh_info =
+ bfd_count_sections (output_bfd) + 1;
+ }
+
+ return true;
+}
+
+/* We need to use a special link routine to handle the .reginfo and
+ the .mdebug sections. We need to merge all instances of these
+ sections together, not write them all out sequentially. */
+
+static boolean
+elf64_alpha_final_link (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ asection *o;
+ struct bfd_link_order *p;
+ asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
+ struct ecoff_debug_info debug;
+ const struct ecoff_debug_swap *swap
+ = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
+ HDRR *symhdr = &debug.symbolic_header;
+ PTR mdebug_handle = NULL;
+
+ /* Go through the sections and collect the .reginfo and .mdebug
+ information. */
+ reginfo_sec = NULL;
+ mdebug_sec = NULL;
+ gptab_data_sec = NULL;
+ gptab_bss_sec = NULL;
+ for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ {
+#ifdef ERIC_neverdef
+ if (strcmp (o->name, ".reginfo") == 0)
+ {
+ memset (®info, 0, sizeof reginfo);
+
+ /* We have found the .reginfo section in the output file.
+ Look through all the link_orders comprising it and merge
+ the information together. */
+ for (p = o->link_order_head;
+ p != (struct bfd_link_order *) NULL;
+ p = p->next)
+ {
+ asection *input_section;
+ bfd *input_bfd;
+ Elf64_External_RegInfo ext;
+ Elf64_RegInfo sub;
+
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_fill_link_order)
+ continue;
+ abort ();
+ }
+
+ input_section = p->u.indirect.section;
+ input_bfd = input_section->owner;
+
+ /* The linker emulation code has probably clobbered the
+ size to be zero bytes. */
+ if (input_section->_raw_size == 0)
+ input_section->_raw_size = sizeof (Elf64_External_RegInfo);
+
+ if (! bfd_get_section_contents (input_bfd, input_section,
+ (PTR) &ext,
+ (file_ptr) 0,
+ sizeof ext))
+ return false;
+
+ bfd_alpha_elf64_swap_reginfo_in (input_bfd, &ext, &sub);
+
+ reginfo.ri_gprmask |= sub.ri_gprmask;
+ reginfo.ri_cprmask[0] |= sub.ri_cprmask[0];
+ reginfo.ri_cprmask[1] |= sub.ri_cprmask[1];
+ reginfo.ri_cprmask[2] |= sub.ri_cprmask[2];
+ reginfo.ri_cprmask[3] |= sub.ri_cprmask[3];
+
+ /* ri_gp_value is set by the function
+ alpha_elf_section_processing when the section is
+ finally written out. */
+
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &=~ SEC_HAS_CONTENTS;
+ }
+
+ /* Force the section size to the value we want. */
+ o->_raw_size = sizeof (Elf64_External_RegInfo);
+
+ /* Skip this section later on (I don't think this currently
+ matters, but someday it might). */
+ o->link_order_head = (struct bfd_link_order *) NULL;
+
+ reginfo_sec = o;
+ }
+#endif
+
+ if (strcmp (o->name, ".mdebug") == 0)
+ {
+ struct extsym_info einfo;
+
+ /* We have found the .mdebug section in the output file.
+ Look through all the link_orders comprising it and merge
+ the information together. */
+ symhdr->magic = swap->sym_magic;
+ /* FIXME: What should the version stamp be? */
+ symhdr->vstamp = 0;
+ symhdr->ilineMax = 0;
+ symhdr->cbLine = 0;
+ symhdr->idnMax = 0;
+ symhdr->ipdMax = 0;
+ symhdr->isymMax = 0;
+ symhdr->ioptMax = 0;
+ symhdr->iauxMax = 0;
+ symhdr->issMax = 0;
+ symhdr->issExtMax = 0;
+ symhdr->ifdMax = 0;
+ symhdr->crfd = 0;
+ symhdr->iextMax = 0;
+
+ /* We accumulate the debugging information itself in the
+ debug_info structure. */
+ debug.line = NULL;
+ debug.external_dnr = NULL;
+ debug.external_pdr = NULL;
+ debug.external_sym = NULL;
+ debug.external_opt = NULL;
+ debug.external_aux = NULL;
+ debug.ss = NULL;
+ debug.ssext = debug.ssext_end = NULL;
+ debug.external_fdr = NULL;
+ debug.external_rfd = NULL;
+ debug.external_ext = debug.external_ext_end = NULL;
+
+ mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
+ if (mdebug_handle == (PTR) NULL)
+ return false;
+
+ if (1)
+ {
+ asection *s;
+ EXTR esym;
+ bfd_vma last;
+ unsigned int i;
+ static const char * const name[] =
+ {
+ ".text", ".init", ".fini", ".data",
+ ".rodata", ".sdata", ".sbss", ".bss"
+ };
+ static const int sc[] = { scText, scInit, scFini, scData,
+ scRData, scSData, scSBss, scBss };
+
+ esym.jmptbl = 0;
+ esym.cobol_main = 0;
+ esym.weakext = 0;
+ esym.reserved = 0;
+ esym.ifd = ifdNil;
+ esym.asym.iss = issNil;
+ esym.asym.st = stLocal;
+ esym.asym.reserved = 0;
+ esym.asym.index = indexNil;
+ for (i = 0; i < 8; i++)
+ {
+ esym.asym.sc = sc[i];
+ s = bfd_get_section_by_name (abfd, name[i]);
+ if (s != NULL)
+ {
+ esym.asym.value = s->vma;
+ last = s->vma + s->_raw_size;
+ }
+ else
+ esym.asym.value = last;
+
+ if (! bfd_ecoff_debug_one_external (abfd, &debug, swap,
+ name[i], &esym))
+ return false;
+ }
+ }
+
+ for (p = o->link_order_head;
+ p != (struct bfd_link_order *) NULL;
+ p = p->next)
+ {
+ asection *input_section;
+ bfd *input_bfd;
+ const struct ecoff_debug_swap *input_swap;
+ struct ecoff_debug_info input_debug;
+ char *eraw_src;
+ char *eraw_end;
+
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_fill_link_order)
+ continue;
+ abort ();
+ }
+
+ input_section = p->u.indirect.section;
+ input_bfd = input_section->owner;
+
+ if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
+ || (get_elf_backend_data (input_bfd)
+ ->elf_backend_ecoff_debug_swap) == NULL)
+ {
+ /* I don't know what a non ALPHA ELF bfd would be
+ doing with a .mdebug section, but I don't really
+ want to deal with it. */
+ continue;
+ }
+
+ input_swap = (get_elf_backend_data (input_bfd)
+ ->elf_backend_ecoff_debug_swap);
+
+ BFD_ASSERT (p->size == input_section->_raw_size);
+
+ /* The ECOFF linking code expects that we have already
+ read in the debugging information and set up an
+ ecoff_debug_info structure, so we do that now. */
+ if (!elf64_alpha_read_ecoff_info (input_bfd, input_section,
+ &input_debug))
+ return false;
+
+ if (! (bfd_ecoff_debug_accumulate
+ (mdebug_handle, abfd, &debug, swap, input_bfd,
+ &input_debug, input_swap, info)))
+ return false;
+
+ /* Loop through the external symbols. For each one with
+ interesting information, try to find the symbol in
+ the linker global hash table and save the information
+ for the output external symbols. */
+ eraw_src = input_debug.external_ext;
+ eraw_end = (eraw_src
+ + (input_debug.symbolic_header.iextMax
+ * input_swap->external_ext_size));
+ for (;
+ eraw_src < eraw_end;
+ eraw_src += input_swap->external_ext_size)
+ {
+ EXTR ext;
+ const char *name;
+ struct alpha_elf_link_hash_entry *h;
+
+ (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
+ if (ext.asym.sc == scNil
+ || ext.asym.sc == scUndefined
+ || ext.asym.sc == scSUndefined)
+ continue;
+
+ name = input_debug.ssext + ext.asym.iss;
+ h = alpha_elf_link_hash_lookup (alpha_elf_hash_table (info),
+ name, false, false, true);
+ if (h == NULL || h->esym.ifd != -2)
+ continue;
+
+ if (ext.ifd != -1)
+ {
+ BFD_ASSERT (ext.ifd
+ < input_debug.symbolic_header.ifdMax);
+ ext.ifd = input_debug.ifdmap[ext.ifd];
+ }
+
+ h->esym = ext;
+ }
+
+ /* Free up the information we just read. */
+ free (input_debug.line);
+ free (input_debug.external_dnr);
+ free (input_debug.external_pdr);
+ free (input_debug.external_sym);
+ free (input_debug.external_opt);
+ free (input_debug.external_aux);
+ free (input_debug.ss);
+ free (input_debug.ssext);
+ free (input_debug.external_fdr);
+ free (input_debug.external_rfd);
+ free (input_debug.external_ext);
+
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &=~ SEC_HAS_CONTENTS;
+ }
+
+#ifdef ERIC_neverdef
+ if (info->shared)
+ {
+ /* Create .rtproc section. */
+ rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
+ if (rtproc_sec == NULL)
+ {
+ flagword flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_READONLY);
+
+ rtproc_sec = bfd_make_section (abfd, ".rtproc");
+ if (rtproc_sec == NULL
+ || ! bfd_set_section_flags (abfd, rtproc_sec, flags)
+ || ! bfd_set_section_alignment (abfd, rtproc_sec, 12))
+ return false;
+ }
+
+ if (! alpha_elf_create_procedure_table (mdebug_handle, abfd,
+ info, rtproc_sec, &debug))
+ return false;
+ }
+#endif
+
+
+ /* Build the external symbol information. */
+ einfo.abfd = abfd;
+ einfo.info = info;
+ einfo.debug = &debug;
+ einfo.swap = swap;
+ einfo.failed = false;
+ elf_link_hash_traverse (elf_hash_table (info),
+ elf64_alpha_output_extsym,
+ (PTR) &einfo);
+ if (einfo.failed)
+ return false;
+
+ /* Set the size of the .mdebug section. */
+ o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap);
+
+ /* Skip this section later on (I don't think this currently
+ matters, but someday it might). */
+ o->link_order_head = (struct bfd_link_order *) NULL;
+
+ mdebug_sec = o;
+ }
+
+#ifdef ERIC_neverdef
+ if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0)
+ {
+ const char *subname;
+ unsigned int c;
+ Elf64_gptab *tab;
+ Elf64_External_gptab *ext_tab;
+ unsigned int i;
+
+ /* The .gptab.sdata and .gptab.sbss sections hold
+ information describing how the small data area would
+ change depending upon the -G switch. These sections
+ not used in executables files. */
+ if (! info->relocateable)
+ {
+ asection **secpp;
+
+ for (p = o->link_order_head;
+ p != (struct bfd_link_order *) NULL;
+ p = p->next)
+ {
+ asection *input_section;
+
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_fill_link_order)
+ continue;
+ abort ();
+ }
+
+ input_section = p->u.indirect.section;
+
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &=~ SEC_HAS_CONTENTS;
+ }
+
+ /* Skip this section later on (I don't think this
+ currently matters, but someday it might). */
+ o->link_order_head = (struct bfd_link_order *) NULL;
+
+ /* Really remove the section. */
+ for (secpp = &abfd->sections;
+ *secpp != o;
+ secpp = &(*secpp)->next)
+ ;
+ *secpp = (*secpp)->next;
+ --abfd->section_count;
+
+ continue;
+ }
+
+ /* There is one gptab for initialized data, and one for
+ uninitialized data. */
+ if (strcmp (o->name, ".gptab.sdata") == 0)
+ gptab_data_sec = o;
+ else if (strcmp (o->name, ".gptab.sbss") == 0)
+ gptab_bss_sec = o;
+ else
+ {
+ (*_bfd_error_handler)
+ ("%s: illegal section name `%s'",
+ bfd_get_filename (abfd), o->name);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return false;
+ }
+
+ /* The linker script always combines .gptab.data and
+ .gptab.sdata into .gptab.sdata, and likewise for
+ .gptab.bss and .gptab.sbss. It is possible that there is
+ no .sdata or .sbss section in the output file, in which
+ case we must change the name of the output section. */
+ subname = o->name + sizeof ".gptab" - 1;
+ if (bfd_get_section_by_name (abfd, subname) == NULL)
+ {
+ if (o == gptab_data_sec)
+ o->name = ".gptab.data";
+ else
+ o->name = ".gptab.bss";
+ subname = o->name + sizeof ".gptab" - 1;
+ BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL);
+ }
+
+ /* Set up the first entry. */
+ c = 1;
+ tab = (Elf64_gptab *) bfd_malloc (c * sizeof (Elf64_gptab));
+ if (tab == NULL)
+ return false;
+ tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd);
+ tab[0].gt_header.gt_unused = 0;
+
+ /* Combine the input sections. */
+ for (p = o->link_order_head;
+ p != (struct bfd_link_order *) NULL;
+ p = p->next)
+ {
+ asection *input_section;
+ bfd *input_bfd;
+ bfd_size_type size;
+ unsigned long last;
+ bfd_size_type gpentry;
+
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_fill_link_order)
+ continue;
+ abort ();
+ }
+
+ input_section = p->u.indirect.section;
+ input_bfd = input_section->owner;
+
+ /* Combine the gptab entries for this input section one
+ by one. We know that the input gptab entries are
+ sorted by ascending -G value. */
+ size = bfd_section_size (input_bfd, input_section);
+ last = 0;
+ for (gpentry = sizeof (Elf64_External_gptab);
+ gpentry < size;
+ gpentry += sizeof (Elf64_External_gptab))
+ {
+ Elf64_External_gptab ext_gptab;
+ Elf64_gptab int_gptab;
+ unsigned long val;
+ unsigned long add;
+ boolean exact;
+ unsigned int look;
+
+ if (! (bfd_get_section_contents
+ (input_bfd, input_section, (PTR) &ext_gptab,
+ gpentry, sizeof (Elf64_External_gptab))))
+ {
+ free (tab);
+ return false;
+ }
+
+ bfd_alpha_elf64_swap_gptab_in (input_bfd, &ext_gptab,
+ &int_gptab);
+ val = int_gptab.gt_entry.gt_g_value;
+ add = int_gptab.gt_entry.gt_bytes - last;
+
+ exact = false;
+ for (look = 1; look < c; look++)
+ {
+ if (tab[look].gt_entry.gt_g_value >= val)
+ tab[look].gt_entry.gt_bytes += add;
+
+ if (tab[look].gt_entry.gt_g_value == val)
+ exact = true;
+ }
+
+ if (! exact)
+ {
+ Elf64_gptab *new_tab;
+ unsigned int max;
+
+ /* We need a new table entry. */
+ new_tab = ((Elf64_gptab *)
+ bfd_realloc ((PTR) tab,
+ (c + 1) * sizeof (Elf64_gptab)));
+ if (new_tab == NULL)
+ {
+ free (tab);
+ return false;
+ }
+ tab = new_tab;
+ tab[c].gt_entry.gt_g_value = val;
+ tab[c].gt_entry.gt_bytes = add;
+
+ /* Merge in the size for the next smallest -G
+ value, since that will be implied by this new
+ value. */
+ max = 0;
+ for (look = 1; look < c; look++)
+ {
+ if (tab[look].gt_entry.gt_g_value < val
+ && (max == 0
+ || (tab[look].gt_entry.gt_g_value
+ > tab[max].gt_entry.gt_g_value)))
+ max = look;
+ }
+ if (max != 0)
+ tab[c].gt_entry.gt_bytes +=
+ tab[max].gt_entry.gt_bytes;
+
+ ++c;
+ }
+
+ last = int_gptab.gt_entry.gt_bytes;
+ }
+
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &=~ SEC_HAS_CONTENTS;
+ }
+
+ /* The table must be sorted by -G value. */
+ if (c > 2)
+ qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare);
+
+ /* Swap out the table. */
+ ext_tab = ((Elf64_External_gptab *)
+ bfd_alloc (abfd, c * sizeof (Elf64_External_gptab)));
+ if (ext_tab == NULL)
+ {
+ free (tab);
+ return false;
+ }
+
+ for (i = 0; i < c; i++)
+ bfd_alpha_elf64_swap_gptab_out (abfd, tab + i, ext_tab + i);
+ free (tab);
+
+ o->_raw_size = c * sizeof (Elf64_External_gptab);
+ o->contents = (bfd_byte *) ext_tab;
+
+ /* Skip this section later on (I don't think this currently
+ matters, but someday it might). */
+ o->link_order_head = (struct bfd_link_order *) NULL;
+ }
+#endif
+
+ }
+
+ /* Invoke the regular ELF backend linker to do all the work. */
+ if (! bfd_elf64_bfd_final_link (abfd, info))
+ return false;
+
+ /* Now write out the computed sections. */
+
+#ifdef ERIC_neverdef
+ if (reginfo_sec != (asection *) NULL)
+ {
+ Elf64_External_RegInfo ext;
+
+ bfd_alpha_elf64_swap_reginfo_out (abfd, ®info, &ext);
+ if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext,
+ (file_ptr) 0, sizeof ext))
+ return false;
+ }
+#endif
+
+ if (mdebug_sec != (asection *) NULL)
+ {
+ BFD_ASSERT (abfd->output_has_begun);
+ if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
+ swap, info,
+ mdebug_sec->filepos))
+ return false;
+
+ bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
+ }
+
+ if (gptab_data_sec != (asection *) NULL)
+ {
+ if (! bfd_set_section_contents (abfd, gptab_data_sec,
+ gptab_data_sec->contents,
+ (file_ptr) 0,
+ gptab_data_sec->_raw_size))
+ return false;
+ }
+
+ if (gptab_bss_sec != (asection *) NULL)
+ {
+ if (! bfd_set_section_contents (abfd, gptab_bss_sec,
+ gptab_bss_sec->contents,
+ (file_ptr) 0,
+ gptab_bss_sec->_raw_size))
+ return false;
+ }
+
+ return true;
+}
+\f
+/* ECOFF swapping routines. These are used when dealing with the
+ .mdebug section, which is in the ECOFF debugging format. Copied
+ from elf32-mips.c. */
+static const struct ecoff_debug_swap
+elf64_alpha_ecoff_debug_swap =
+{
+ /* Symbol table magic number. */
+ magicSym2,
+ /* Alignment of debugging information. E.g., 4. */
+ 8,
+ /* Sizes of external symbolic information. */
+ sizeof (struct hdr_ext),
+ sizeof (struct dnr_ext),
+ sizeof (struct pdr_ext),
+ sizeof (struct sym_ext),
+ sizeof (struct opt_ext),
+ sizeof (struct fdr_ext),
+ sizeof (struct rfd_ext),
+ sizeof (struct ext_ext),
+ /* Functions to swap in external symbolic data. */
+ ecoff_swap_hdr_in,
+ ecoff_swap_dnr_in,
+ ecoff_swap_pdr_in,
+ ecoff_swap_sym_in,
+ ecoff_swap_opt_in,
+ ecoff_swap_fdr_in,
+ ecoff_swap_rfd_in,
+ ecoff_swap_ext_in,
+ _bfd_ecoff_swap_tir_in,
+ _bfd_ecoff_swap_rndx_in,
+ /* Functions to swap out external symbolic data. */
+ ecoff_swap_hdr_out,
+ ecoff_swap_dnr_out,
+ ecoff_swap_pdr_out,
+ ecoff_swap_sym_out,
+ ecoff_swap_opt_out,
+ ecoff_swap_fdr_out,
+ ecoff_swap_rfd_out,
+ ecoff_swap_ext_out,
+ _bfd_ecoff_swap_tir_out,
+ _bfd_ecoff_swap_rndx_out,
+ /* Function to read in symbolic data. */
+ elf64_alpha_read_ecoff_info
+};
+\f
+#define TARGET_LITTLE_SYM bfd_elf64_alpha_vec
+#define TARGET_LITTLE_NAME "elf64-alpha"
+#define ELF_ARCH bfd_arch_alpha
+#define ELF_MACHINE_CODE EM_ALPHA
+#define ELF_MAXPAGESIZE 0x100000
+
+#define bfd_elf64_bfd_link_hash_table_create \
+ elf64_alpha_bfd_link_hash_table_create
+
+#define bfd_elf64_bfd_reloc_type_lookup \
+ elf64_alpha_bfd_reloc_type_lookup
+#define elf_info_to_howto \
+ elf64_alpha_info_to_howto
+
+#define elf_backend_object_p \
+ elf64_alpha_object_p
+#define elf_backend_section_from_shdr \
+ elf64_alpha_section_from_shdr
+#define elf_backend_fake_sections \
+ elf64_alpha_fake_sections
+#define elf_backend_additional_program_headers \
+ elf64_alpha_additional_program_headers
+
+#define bfd_elf64_bfd_is_local_label \
+ elf64_alpha_is_local_label
+#define bfd_elf64_find_nearest_line \
+ elf64_alpha_find_nearest_line
+
+#define elf_backend_check_relocs \
+ elf64_alpha_check_relocs
+#define elf_backend_create_dynamic_sections \
+ elf64_alpha_create_dynamic_sections
+#define elf_backend_adjust_dynamic_symbol \
+ elf64_alpha_adjust_dynamic_symbol
+#define elf_backend_size_dynamic_sections \
+ elf64_alpha_size_dynamic_sections
+#define elf_backend_relocate_section \
+ elf64_alpha_relocate_section
+#define elf_backend_finish_dynamic_symbol \
+ elf64_alpha_finish_dynamic_symbol
+#define elf_backend_finish_dynamic_sections \
+ elf64_alpha_finish_dynamic_sections
+#define bfd_elf64_bfd_final_link \
+ elf64_alpha_final_link
+
+#define elf_backend_ecoff_debug_swap \
+ &elf64_alpha_ecoff_debug_swap
+
+/*
+ * A few constants that determine how the .plt section is set up.
+ */
+#define elf_backend_want_got_plt 0
+#define elf_backend_plt_readonly 0
+#define elf_backend_want_plt_sym 1
+
+#include "elf64-target.h"
projects / binutils-gdb.git / commitdiff