/* Main program of GNU linker.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005
+ 2002, 2003, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
- This file is part of GLD, the Gnu Linker.
+ This file is part of the GNU Binutils.
- GLD is free software; you can redistribute it and/or modify
+ 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, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
- GLD is distributed in the hope that it will be useful,
+ 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 GLD; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
-#include <stdio.h>
+#include "bfd.h"
#include "safe-ctype.h"
#include "libiberty.h"
#include "progress.h"
#include <string.h>
#ifdef HAVE_SBRK
-#ifdef NEED_DECLARATION_SBRK
+#if !HAVE_DECL_SBRK
extern void *sbrk ();
#endif
#endif
/* EXPORTS */
+FILE *saved_script_handle = NULL;
+FILE *previous_script_handle = NULL;
+bfd_boolean force_make_executable = FALSE;
+
char *default_target;
const char *output_filename = "a.out";
char * ld_canon_sysroot;
int ld_canon_sysroot_len;
-/* The file that we're creating. */
-bfd *output_bfd = 0;
-
/* Set by -G argument, for MIPS ECOFF target. */
int g_switch_value = 8;
reloc_overflow,
reloc_dangerous,
unattached_reloc,
- notice
+ notice,
+ einfo,
+ info_msg,
+ minfo,
+ ldlang_override_segment_assignment
};
struct bfd_link_info link_info;
{
if (output_filename)
{
- if (output_bfd)
- bfd_cache_close (output_bfd);
+ if (link_info.output_bfd)
+ bfd_cache_close (link_info.output_bfd);
if (delete_output_file_on_failure)
unlink_if_ordinary (output_filename);
}
START_PROGRESS (program_name, 0);
+ expandargv (&argc, &argv);
+
bfd_init ();
bfd_set_error_program_name (program_name);
{
if (*TARGET_SYSTEM_ROOT == 0)
{
- einfo ("%P%F: this linker was not configured to use sysroots");
+ einfo ("%P%F: this linker was not configured to use sysroots\n");
ld_sysroot = "";
}
else
}
#endif
- /* Initialize the data about options. */
- trace_files = trace_file_tries = version_printed = FALSE;
- whole_archive = FALSE;
config.build_constructors = TRUE;
- config.dynamic_link = FALSE;
- config.has_shared = FALSE;
+ config.rpath_separator = ':';
config.split_by_reloc = (unsigned) -1;
config.split_by_file = (bfd_size_type) -1;
- config.hash_table_size = 0;
- command_line.force_common_definition = FALSE;
- command_line.inhibit_common_definition = FALSE;
- command_line.interpreter = NULL;
- command_line.rpath = NULL;
+ config.make_executable = TRUE;
+ config.magic_demand_paged = TRUE;
+ config.text_read_only = TRUE;
+
command_line.warn_mismatch = TRUE;
+ command_line.warn_search_mismatch = TRUE;
command_line.check_section_addresses = TRUE;
- command_line.accept_unknown_input_arch = FALSE;
- command_line.reduce_memory_overheads = FALSE;
-
- sort_section = none;
/* We initialize DEMANGLING based on the environment variable
COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the
interface by default. */
demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL;
- link_info.relocatable = FALSE;
- link_info.emitrelocations = FALSE;
- link_info.task_link = FALSE;
- link_info.shared = FALSE;
- link_info.pie = FALSE;
- link_info.executable = FALSE;
- link_info.symbolic = FALSE;
- link_info.export_dynamic = FALSE;
- link_info.static_link = FALSE;
- link_info.traditional_format = FALSE;
- link_info.optimize = FALSE;
- link_info.unresolved_syms_in_objects = RM_NOT_YET_SET;
- link_info.unresolved_syms_in_shared_libs = RM_NOT_YET_SET;
- link_info.allow_multiple_definition = FALSE;
link_info.allow_undefined_version = TRUE;
- link_info.create_default_symver = FALSE;
- link_info.default_imported_symver = FALSE;
link_info.keep_memory = TRUE;
- link_info.notice_all = FALSE;
- link_info.nocopyreloc = FALSE;
- link_info.new_dtags = FALSE;
link_info.combreloc = TRUE;
- link_info.eh_frame_hdr = FALSE;
- link_info.relro = FALSE;
link_info.strip_discarded = TRUE;
- link_info.strip = strip_none;
- link_info.discard = discard_sec_merge;
- link_info.common_skip_ar_aymbols = bfd_link_common_skip_none;
+ link_info.emit_hash = TRUE;
link_info.callbacks = &link_callbacks;
- link_info.hash = NULL;
- link_info.keep_hash = NULL;
- link_info.notice_hash = NULL;
- link_info.wrap_hash = NULL;
- link_info.input_bfds = NULL;
- link_info.create_object_symbols_section = NULL;
- link_info.gc_sym_list = NULL;
- link_info.base_file = NULL;
+ link_info.input_bfds_tail = &link_info.input_bfds;
/* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init
and _fini symbols. We are compatible. */
link_info.init_function = "_init";
link_info.fini_function = "_fini";
+ link_info.relax_pass = 1;
link_info.pei386_auto_import = -1;
- link_info.pei386_runtime_pseudo_reloc = FALSE;
link_info.spare_dynamic_tags = 5;
- link_info.flags = 0;
- link_info.flags_1 = 0;
- link_info.need_relax_finalize = FALSE;
- link_info.warn_shared_textrel = FALSE;
- link_info.gc_sections = FALSE;
+ link_info.path_separator = ':';
ldfile_add_arch ("");
-
- config.make_executable = TRUE;
- force_make_executable = FALSE;
- config.magic_demand_paged = TRUE;
- config.text_read_only = TRUE;
-
emulation = get_emulation (argc, argv);
ldemul_choose_mode (emulation);
default_target = ldemul_choose_target (argc, argv);
if (link_info.relocatable)
{
- if (link_info.gc_sections)
- einfo ("%P%F: --gc-sections and -r may not be used together\n");
- else if (command_line.relax)
+ if (command_line.relax)
einfo (_("%P%F: --relax and -r may not be used together\n"));
if (link_info.shared)
einfo (_("%P%F: -r and -shared may not be used together\n"));
}
- if (!config.dynamic_link && link_info.shared)
- einfo (_("%P%F: -static and -shared may not be used together\n"));
+ /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data,
+ --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and
+ --dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are
+ for shared libraries. -Bsymbolic overrides all others and vice
+ versa. */
+ switch (command_line.symbolic)
+ {
+ case symbolic_unset:
+ break;
+ case symbolic:
+ /* -Bsymbolic is for shared library only. */
+ if (link_info.shared)
+ {
+ link_info.symbolic = TRUE;
+ /* Should we free the unused memory? */
+ link_info.dynamic_list = NULL;
+ command_line.dynamic_list = dynamic_list_unset;
+ }
+ break;
+ case symbolic_functions:
+ /* -Bsymbolic-functions is for shared library only. */
+ if (link_info.shared)
+ command_line.dynamic_list = dynamic_list_data;
+ break;
+ }
+
+ switch (command_line.dynamic_list)
+ {
+ case dynamic_list_unset:
+ break;
+ case dynamic_list_data:
+ link_info.dynamic_data = TRUE;
+ case dynamic_list:
+ link_info.dynamic = TRUE;
+ break;
+ }
if (! link_info.shared)
{
the -L's in argv have been processed. */
set_scripts_dir ();
+ /* If we have not already opened and parsed a linker script,
+ try the default script from command line first. */
+ if (saved_script_handle == NULL
+ && command_line.default_script != NULL)
+ {
+ ldfile_open_command_file (command_line.default_script);
+ parser_input = input_script;
+ yyparse ();
+ }
+
/* If we have not already opened and parsed a linker script
read the emulation's appropriate default script. */
if (saved_script_handle == NULL)
/* Print error messages for any missing symbols, for any warning
symbols, and possibly multiple definitions. */
if (link_info.relocatable)
- output_bfd->flags &= ~EXEC_P;
+ link_info.output_bfd->flags &= ~EXEC_P;
else
- output_bfd->flags |= EXEC_P;
+ link_info.output_bfd->flags |= EXEC_P;
ldwrite ();
if (nocrossref_list != NULL)
check_nocrossrefs ();
+ lang_finish ();
+
/* Even if we're producing relocatable output, some non-fatal errors should
be reported in the exit status. (What non-fatal errors, if any, do we
want to ignore for relocatable output?) */
}
else
{
- if (! bfd_close (output_bfd))
- einfo (_("%F%B: final close failed: %E\n"), output_bfd);
+ if (! bfd_close (link_info.output_bfd))
+ einfo (_("%F%B: final close failed: %E\n"), link_info.output_bfd);
/* If the --force-exe-suffix is enabled, and we're making an
executable file and it doesn't end in .exe, copy it to one
const char *path;
for (i = 1; i < argc; i++)
- if (strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")) == 0)
+ if (CONST_STRNEQ (argv[i], "--sysroot="))
return argv[i] + strlen ("--sysroot=");
path = get_relative_sysroot (BINDIR);
for (i = 1; i < argc; i++)
{
- if (!strncmp (argv[i], "-m", 2))
+ if (CONST_STRNEQ (argv[i], "-m"))
{
if (argv[i][2] == '\0')
{
if (link_info.notice_hash == NULL)
{
link_info.notice_hash = xmalloc (sizeof (struct bfd_hash_table));
- if (! bfd_hash_table_init_n (link_info.notice_hash,
- bfd_hash_newfunc,
- 61))
+ if (!bfd_hash_table_init_n (link_info.notice_hash,
+ bfd_hash_newfunc,
+ sizeof (struct bfd_hash_entry),
+ 61))
einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
}
if (link_info.wrap_hash == NULL)
{
link_info.wrap_hash = xmalloc (sizeof (struct bfd_hash_table));
- if (! bfd_hash_table_init_n (link_info.wrap_hash,
- bfd_hash_newfunc,
- 61))
+ if (!bfd_hash_table_init_n (link_info.wrap_hash,
+ bfd_hash_newfunc,
+ sizeof (struct bfd_hash_entry),
+ 61))
einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
}
}
link_info.keep_hash = xmalloc (sizeof (struct bfd_hash_table));
- if (! bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc))
+ if (!bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc,
+ sizeof (struct bfd_hash_entry)))
einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
bufsize = 100;
a link. */
static bfd_boolean
-add_archive_element (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+add_archive_element (struct bfd_link_info *info,
bfd *abfd,
const char *name)
{
bfd *from;
int len;
- h = bfd_link_hash_lookup (link_info.hash, name, FALSE, FALSE, TRUE);
+ h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
if (h == NULL)
from = NULL;
/* Ensure that BFD_RELOC_CTOR exists now, so that we can give a
useful error message. */
- if (bfd_reloc_type_lookup (output_bfd, BFD_RELOC_CTOR) == NULL
- && (link_info.relocatable
+ if (bfd_reloc_type_lookup (link_info.output_bfd, BFD_RELOC_CTOR) == NULL
+ && (info->relocatable
|| bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL))
einfo (_("%P%F: BFD backend error: BFD_RELOC_CTOR unsupported\n"));
if (hash == NULL)
{
hash = xmalloc (sizeof (struct bfd_hash_table));
- if (! bfd_hash_table_init (hash, bfd_hash_newfunc))
+ if (!bfd_hash_table_init (hash, bfd_hash_newfunc,
+ sizeof (struct bfd_hash_entry)))
einfo (_("%F%P: bfd_hash_table_init failed: %E\n"));
}
if (overflow_cutoff_limit == -1)
return TRUE;
- if (abfd == NULL)
- einfo (_("%P%X: generated"));
- else
- einfo ("%X%C:", abfd, section, address);
+ einfo ("%X%C:", abfd, section, address);
if (overflow_cutoff_limit >= 0
&& overflow_cutoff_limit-- == 0)
case bfd_link_hash_defweak:
einfo (_(" relocation truncated to fit: %s against symbol `%T' defined in %A section in %B"),
reloc_name, entry->root.string,
- entry->u.def.section, entry->u.def.section->owner);
+ entry->u.def.section,
+ entry->u.def.section == bfd_abs_section_ptr
+ ? link_info.output_bfd : entry->u.def.section->owner);
break;
default:
abort ();
asection *section,
bfd_vma address)
{
- if (abfd == NULL)
- einfo (_("%P%X: generated"));
- else
- einfo ("%X%C:", abfd, section, address);
- einfo (_("dangerous relocation: %s\n"), message);
+ einfo (_("%X%C: dangerous relocation: %s\n"),
+ abfd, section, address, message);
return TRUE;
}
asection *section,
bfd_vma address)
{
- if (abfd == NULL)
- einfo (_("%P%X: generated"));
- else
- einfo ("%X%C:", abfd, section, address);
- einfo (_(" reloc refers to symbol `%T' which is not being output\n"), name);
+ einfo (_("%X%C: reloc refers to symbol `%T' which is not being output\n"),
+ abfd, section, address, name);
return TRUE;
}
asection *section,
bfd_vma value)
{
+ if (name == NULL)
+ {
+ if (command_line.cref || nocrossref_list != NULL)
+ return handle_asneeded_cref (abfd, value);
+ return TRUE;
+ }
+
if (! info->notice_all
|| (info->notice_hash != NULL
&& bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE) != NULL))
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