/* BFD back-end for linux flavored m68k a.out binaries.
- Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002,
- 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1992-2016 Free Software Foundation, Inc.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#define TARGET_PAGE_SIZE 4096
#define ZMAGIC_DISK_BLOCK_SIZE 1024
#define SEGMENT_SIZE TARGET_PAGE_SIZE
#define TEXT_START_ADDR 0x0
-#define N_SHARED_LIB(x) 0
#define MACHTYPE_OK(mtype) ((mtype) == M_68020 || (mtype) == M_UNKNOWN)
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "aout/aout64.h"
#include "aout/stab_gnu.h"
/* Do not "beautify" the CONCAT* macro args. Traditional C will not
remove whitespace added here, and thus will fail to concatenate
the tokens. */
-#define MY(OP) CONCAT2 (m68klinux_,OP)
+#define MY(OP) CONCAT2 (m68k_aout_linux_,OP)
#define TARGETNAME "a.out-m68k-linux"
extern const bfd_target MY(vec);
becomes important. */
static void MY_final_link_callback
- PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *));
-static bfd_boolean m68klinux_bfd_final_link
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_boolean m68klinux_write_object_contents PARAMS ((bfd *));
+ (bfd *, file_ptr *, file_ptr *, file_ptr *);
static bfd_boolean
-m68klinux_bfd_final_link (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+m68klinux_bfd_final_link (bfd *abfd,
+ struct bfd_link_info *info)
{
obj_aout_subformat (abfd) = q_magic_format;
return NAME(aout,final_link) (abfd, info, MY_final_link_callback);
/* Set the machine type correctly. */
static bfd_boolean
-m68klinux_write_object_contents (abfd)
- bfd *abfd;
+m68klinux_write_object_contents (bfd *abfd)
{
struct external_exec exec_bytes;
struct internal_exec *execp = exec_hdr (abfd);
- N_SET_MACHTYPE (*execp, M_68020);
+ N_SET_MACHTYPE (execp, M_68020);
obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
- WRITE_HEADERS(abfd, execp);
+ WRITE_HEADERS (abfd, execp);
return TRUE;
}
#define GOT_REF_PREFIX "__GOT_"
#endif
-#define IS_GOT_SYM(name) \
- (strncmp (name, GOT_REF_PREFIX, sizeof GOT_REF_PREFIX - 1) == 0)
+#define IS_GOT_SYM(name) (CONST_STRNEQ (name, GOT_REF_PREFIX))
/* See if a symbol name is a reference to the procedure linkage table. */
#define PLT_REF_PREFIX "__PLT_"
#endif
-#define IS_PLT_SYM(name) \
- (strncmp (name, PLT_REF_PREFIX, sizeof PLT_REF_PREFIX - 1) == 0)
+#define IS_PLT_SYM(name) (CONST_STRNEQ (name, PLT_REF_PREFIX))
/* This string is used to generate specialized error messages. */
struct fixup *fixup_list;
};
-static struct bfd_hash_entry *linux_link_hash_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static struct bfd_link_hash_table *linux_link_hash_table_create
- PARAMS ((bfd *));
-static struct fixup *new_fixup
- PARAMS ((struct bfd_link_info *, struct linux_link_hash_entry *,
- bfd_vma, int));
-static bfd_boolean linux_link_create_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_boolean linux_add_one_symbol
- PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, asection *,
- bfd_vma, const char *, bfd_boolean, bfd_boolean,
- struct bfd_link_hash_entry **));
-static bfd_boolean linux_tally_symbols
- PARAMS ((struct linux_link_hash_entry *, PTR));
-static bfd_boolean linux_finish_dynamic_link
- PARAMS ((bfd *, struct bfd_link_info *));
-
/* Routine to create an entry in an Linux link hash table. */
static struct bfd_hash_entry *
-linux_link_hash_newfunc (entry, table, string)
- struct bfd_hash_entry *entry;
- struct bfd_hash_table *table;
- const char *string;
+linux_link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
{
struct linux_link_hash_entry *ret = (struct linux_link_hash_entry *) entry;
/* Create a Linux link hash table. */
static struct bfd_link_hash_table *
-linux_link_hash_table_create (abfd)
- bfd *abfd;
+linux_link_hash_table_create (bfd *abfd)
{
struct linux_link_hash_table *ret;
bfd_size_type amt = sizeof (struct linux_link_hash_table);
- ret = (struct linux_link_hash_table *) bfd_malloc (amt);
+ ret = (struct linux_link_hash_table *) bfd_zmalloc (amt);
if (ret == (struct linux_link_hash_table *) NULL)
{
bfd_set_error (bfd_error_no_memory);
return (struct bfd_link_hash_table *) NULL;
}
- if (! NAME(aout,link_hash_table_init) (&ret->root, abfd,
- linux_link_hash_newfunc))
+ if (!NAME(aout,link_hash_table_init) (&ret->root, abfd,
+ linux_link_hash_newfunc,
+ sizeof (struct linux_link_hash_entry)))
{
free (ret);
return (struct bfd_link_hash_table *) NULL;
}
- ret->dynobj = NULL;
- ret->fixup_count = 0;
- ret->local_builtins = 0;
- ret->fixup_list = NULL;
-
return &ret->root.root;
}
#define linux_link_hash_traverse(table, func, info) \
(aout_link_hash_traverse \
(&(table)->root, \
- (bfd_boolean (*) PARAMS ((struct aout_link_hash_entry *, PTR))) (func), \
+ (bfd_boolean (*) (struct aout_link_hash_entry *, void *)) (func), \
(info)))
/* Get the Linux link hash table from the info structure. This is
/* Store the information for a new fixup. */
static struct fixup *
-new_fixup (info, h, value, builtin)
- struct bfd_link_info *info;
- struct linux_link_hash_entry *h;
- bfd_vma value;
- int builtin;
+new_fixup (struct bfd_link_info *info,
+ struct linux_link_hash_entry *h,
+ bfd_vma value,
+ int builtin)
{
struct fixup *f;
create it for now. */
static bfd_boolean
-linux_link_create_dynamic_sections (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
+linux_link_create_dynamic_sections (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
flagword flags;
- register asection *s;
+ asection *s;
/* Note that we set the SEC_IN_MEMORY flag. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
/* We choose to use the name ".linux-dynamic" for the fixup table.
Why not? */
- s = bfd_make_section (abfd, ".linux-dynamic");
+ s = bfd_make_section_with_flags (abfd, ".linux-dynamic", flags);
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags)
|| ! bfd_set_section_alignment (abfd, s, 2))
return FALSE;
s->size = 0;
tweaking needed for dynamic linking support. */
static bfd_boolean
-linux_add_one_symbol (info, abfd, name, flags, section, value, string,
- copy, collect, hashp)
- struct bfd_link_info *info;
- bfd *abfd;
- const char *name;
- flagword flags;
- asection *section;
- bfd_vma value;
- const char *string;
- bfd_boolean copy;
- bfd_boolean collect;
- struct bfd_link_hash_entry **hashp;
+linux_add_one_symbol (struct bfd_link_info *info,
+ bfd *abfd,
+ const char *name,
+ flagword flags,
+ asection *section,
+ bfd_vma value,
+ const char *string,
+ bfd_boolean copy,
+ bfd_boolean collect,
+ struct bfd_link_hash_entry **hashp)
{
struct linux_link_hash_entry *h;
bfd_boolean insert;
If we do, and the defining entry is from a shared library, we
need to create the dynamic sections.
- FIXME: What if abfd->xvec != info->hash->creator? We may want to
- be able to link Linux a.out and ELF objects together, but serious
- confusion is possible. */
+ FIXME: What if abfd->xvec != info->output_bfd->xvec? We may
+ want to be able to link Linux a.out and ELF objects together,
+ but serious confusion is possible. */
insert = FALSE;
- if (! info->relocatable
+ if (! bfd_link_relocatable (info)
&& linux_hash_table (info)->dynobj == NULL
&& strcmp (name, SHARABLE_CONFLICTS) == 0
&& (flags & BSF_CONSTRUCTOR) != 0
- && abfd->xvec == info->hash->creator)
+ && abfd->xvec == info->output_bfd->xvec)
{
if (! linux_link_create_dynamic_sections (abfd, info))
return FALSE;
}
if (bfd_is_abs_section (section)
- && abfd->xvec == info->hash->creator)
+ && abfd->xvec == info->output_bfd->xvec)
{
h = linux_link_hash_lookup (linux_hash_table (info), name, FALSE,
FALSE, FALSE);
This function is called via linux_link_hash_traverse. */
static bfd_boolean
-linux_tally_symbols (h, data)
- struct linux_link_hash_entry *h;
- PTR data;
+linux_tally_symbols (struct linux_link_hash_entry *h,
+ void * data)
{
struct bfd_link_info *info = (struct bfd_link_info *) data;
struct fixup *f, *f1;
struct linux_link_hash_entry *h1, *h2;
bfd_boolean exists;
- if (h->root.root.type == bfd_link_hash_warning)
- h = (struct linux_link_hash_entry *) h->root.root.u.i.link;
-
if (h->root.root.type == bfd_link_hash_undefined
- && strncmp (h->root.root.root.string, NEEDS_SHRLIB,
- sizeof NEEDS_SHRLIB - 1) == 0)
+ && CONST_STRNEQ (h->root.root.root.string, NEEDS_SHRLIB))
{
const char *name;
char *p;
are required. */
bfd_boolean
-bfd_m68klinux_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd;
- struct bfd_link_info *info;
+bfd_m68klinux_size_dynamic_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
{
struct fixup *f;
asection *s;
/* First find the fixups... */
linux_link_hash_traverse (linux_hash_table (info),
linux_tally_symbols,
- (PTR) info);
+ info);
/* If there are builtin fixups, leave room for a marker. This is
used by the dynamic linker so that it knows that all that follow
the stuff we need. */
static bfd_boolean
-linux_finish_dynamic_link (output_bfd, info)
- bfd *output_bfd;
- struct bfd_link_info *info;
+linux_finish_dynamic_link (bfd *output_bfd, struct bfd_link_info *info)
{
asection *s, *os, *is;
bfd_byte *fixup_table;
SEEK_SET) != 0)
return FALSE;
- if (bfd_bwrite ((PTR) s->contents, s->size, output_bfd) != s->size)
+ if (bfd_bwrite (s->contents, s->size, output_bfd) != s->size)
return FALSE;
return TRUE;