1996-06-25 17:55:31 +02:00
|
|
|
|
/* 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 *));
|
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
#if defined(__STDC__) || defined(ALMOST_STDC)
|
1996-06-25 17:55:31 +02:00
|
|
|
|
struct alpha_elf_link_hash_entry;
|
1996-08-15 02:03:50 +02:00
|
|
|
|
#endif
|
|
|
|
|
|
1996-06-25 17:55:31 +02:00
|
|
|
|
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 *));
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#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;
|
1996-08-15 02:03:50 +02:00
|
|
|
|
|
|
|
|
|
unsigned char flags;
|
|
|
|
|
/* Contexts (LITUSE) in which a literal was referenced. */
|
|
|
|
|
#define ALPHA_ELF_LINK_HASH_LU_ADDR 01
|
|
|
|
|
#define ALPHA_ELF_LINK_HASH_LU_MEM 02
|
|
|
|
|
#define ALPHA_ELF_LINK_HASH_LU_FUNC 04
|
1996-06-25 17:55:31 +02:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* 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;
|
1996-08-15 02:03:50 +02:00
|
|
|
|
ret->flags = 0;
|
1996-06-25 17:55:31 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* 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];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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"
|
|
|
|
|
|
|
|
|
|
/* 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);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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 */
|
|
|
|
|
|
|
|
|
|
/* 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);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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;
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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;
|
1996-08-15 02:03:50 +02:00
|
|
|
|
struct alpha_elf_link_hash_entry *h;
|
1996-06-25 17:55:31 +02:00
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
r_symndx = ELF64_R_SYM (rel->r_info);
|
1996-06-25 17:55:31 +02:00
|
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
|
|
|
h = NULL;
|
|
|
|
|
else
|
1996-08-15 02:03:50 +02:00
|
|
|
|
h = ((struct alpha_elf_link_hash_entry *)
|
|
|
|
|
sym_hashes[r_symndx - symtab_hdr->sh_info]);
|
1996-06-25 17:55:31 +02:00
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
switch (ELF64_R_TYPE (rel->r_info))
|
1996-06-25 17:55:31 +02:00
|
|
|
|
{
|
|
|
|
|
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.
|
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
Furthermore, the .plt trampoline does not give constant
|
|
|
|
|
function addresses, so if we ever see a function's address
|
|
|
|
|
taken, we cannot do lazy binding on that function. */
|
|
|
|
|
|
|
|
|
|
if (h)
|
1996-06-25 17:55:31 +02:00
|
|
|
|
{
|
1996-08-15 02:03:50 +02:00
|
|
|
|
if (rel+1 < relend
|
|
|
|
|
&& ELF64_R_TYPE (rel[1].r_info) == R_ALPHA_LITUSE)
|
|
|
|
|
{
|
|
|
|
|
switch (rel[1].r_addend)
|
|
|
|
|
{
|
|
|
|
|
case 1: /* Memory reference */
|
|
|
|
|
h->flags |= ALPHA_ELF_LINK_HASH_LU_MEM;
|
|
|
|
|
break;
|
|
|
|
|
case 3: /* Call reference */
|
|
|
|
|
h->flags |= ALPHA_ELF_LINK_HASH_LU_FUNC;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
h->flags |= ALPHA_ELF_LINK_HASH_LU_ADDR;
|
|
|
|
|
|
|
|
|
|
if (h->root.root.type != bfd_link_hash_undefweak
|
|
|
|
|
&& (info->shared
|
|
|
|
|
|| !(h->root.elf_link_hash_flags
|
|
|
|
|
& ELF_LINK_HASH_DEF_REGULAR))
|
|
|
|
|
&& (h->root.type == STT_FUNC
|
|
|
|
|
|| (h->root.type == STT_NOTYPE
|
|
|
|
|
&& (h->flags & ALPHA_ELF_LINK_HASH_LU_FUNC))))
|
|
|
|
|
{
|
|
|
|
|
h->root.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
|
|
|
|
|
}
|
1996-06-25 17:55:31 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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)
|
|
|
|
|
{
|
1996-08-15 02:03:50 +02:00
|
|
|
|
if (h->root.got_offset != MINUS_ONE)
|
1996-06-25 17:55:31 +02:00
|
|
|
|
{
|
|
|
|
|
/* We have already allocated space in this .got. */
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Make sure this becomes a dynamic symbol. */
|
1996-08-15 02:03:50 +02:00
|
|
|
|
if (h->root.dynindx == -1
|
|
|
|
|
&& ! _bfd_elf_link_record_dynamic_symbol (info, &h->root))
|
1996-06-25 17:55:31 +02:00
|
|
|
|
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 */
|
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
h->root.got_offset = sgot->_raw_size;
|
1996-06-25 17:55:31 +02:00
|
|
|
|
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
|
1996-08-15 02:03:50 +02:00
|
|
|
|
|| (h != NULL
|
|
|
|
|
&& !(h->root.elf_link_hash_flags
|
|
|
|
|
& ELF_LINK_HASH_DEF_REGULAR)))
|
1996-06-25 17:55:31 +02:00
|
|
|
|
{
|
|
|
|
|
/* 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;
|
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
|
|
|
|
&& strcmp (bfd_get_section_name (abfd, sec),
|
|
|
|
|
name+5) == 0);
|
1996-06-25 17:55:31 +02:00
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
1996-06-25 17:55:31 +02:00
|
|
|
|
if (sreloc == NULL)
|
|
|
|
|
{
|
1996-08-15 02:03:50 +02:00
|
|
|
|
sreloc = bfd_make_section (dynobj, name);
|
1996-06-25 17:55:31 +02:00
|
|
|
|
if (sreloc == NULL
|
1996-08-15 02:03:50 +02:00
|
|
|
|
|| !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))
|
1996-06-25 17:55:31 +02:00
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
1996-08-15 02:03:50 +02:00
|
|
|
|
sreloc->_raw_size += sizeof (Elf64_External_Rela);
|
1996-06-25 17:55:31 +02:00
|
|
|
|
}
|
|
|
|
|
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)
|
|
|
|
|
{
|
1996-08-15 02:03:50 +02:00
|
|
|
|
/* We hadn't seen all of the input symbols or all of the relocations
|
|
|
|
|
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))
|
|
|
|
|
|| (((struct alpha_elf_link_hash_entry *) h)->flags
|
|
|
|
|
& ALPHA_ELF_LINK_HASH_LU_ADDR))
|
1996-06-25 17:55:31 +02:00
|
|
|
|
{
|
|
|
|
|
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];
|
|
|
|
|
|
1996-08-15 02:03:50 +02:00
|
|
|
|
for (i = 1, p = output_bfd->sections;
|
1996-06-25 17:55:31 +02:00
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#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"
|