/* Main program of GNU linker.
- Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 1999
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002
Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
#include "bfd.h"
#include "sysdep.h"
#include <stdio.h>
-#include <ctype.h>
+#include "safe-ctype.h"
#include "libiberty.h"
#include "progress.h"
#include "bfdlink.h"
+#include "filenames.h"
#include "ld.h"
#include "ldmain.h"
#include "ldmisc.h"
#include "ldwrite.h"
-#include "ldgram.h"
#include "ldexp.h"
#include "ldlang.h"
-#include "ldemul.h"
+#include "ldgram.h"
#include "ldlex.h"
#include "ldfile.h"
+#include "ldemul.h"
#include "ldctor.h"
-/* Somewhere above, sys/stat.h got included . . . . */
+/* Somewhere above, sys/stat.h got included . . . . */
#if !defined(S_ISDIR) && defined(S_IFDIR)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#endif
#endif
+int main PARAMS ((int, char **));
+
static char *get_emulation PARAMS ((int, char **));
static void set_scripts_dir PARAMS ((void));
/* Name this program was invoked by. */
char *program_name;
-/* The file that we're creating */
+/* The file that we're creating. */
bfd *output_bfd = 0;
/* Set by -G argument, for MIPS ECOFF target. */
static void warning_find_reloc PARAMS ((bfd *, asection *, PTR));
static boolean undefined_symbol PARAMS ((struct bfd_link_info *,
const char *, bfd *,
- asection *, bfd_vma));
+ asection *, bfd_vma, boolean));
static boolean reloc_overflow PARAMS ((struct bfd_link_info *, const char *,
const char *, bfd_vma,
bfd *, asection *, bfd_vma));
static boolean notice PARAMS ((struct bfd_link_info *, const char *,
bfd *, asection *, bfd_vma));
-static struct bfd_link_callbacks link_callbacks =
-{
+static struct bfd_link_callbacks link_callbacks = {
add_archive_element,
multiple_definition,
multiple_common,
static void
remove_output ()
{
- if (output_filename)
+ if (output_filename)
{
if (output_bfd && output_bfd->iostream)
- fclose((FILE *)(output_bfd->iostream));
+ fclose ((FILE *) (output_bfd->iostream));
if (delete_output_file_on_failure)
unlink (output_filename);
}
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
+#endif
+#if defined (HAVE_SETLOCALE)
+ setlocale (LC_CTYPE, "");
#endif
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
xexit (1);
}
+#if YYDEBUG
+ {
+ extern int yydebug;
+ yydebug = 1;
+ }
+#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.split_by_reloc = (unsigned) -1;
+ config.split_by_file = (bfd_size_type) -1;
command_line.force_common_definition = false;
+ command_line.inhibit_common_definition = false;
command_line.interpreter = NULL;
command_line.rpath = NULL;
command_line.warn_mismatch = true;
link_info.callbacks = &link_callbacks;
link_info.relocateable = false;
+ link_info.emitrelocations = false;
link_info.shared = 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.no_undefined = false;
+ link_info.allow_shlib_undefined = false;
+ link_info.allow_multiple_definition = false;
+ link_info.allow_undefined_version = true;
link_info.strip = strip_none;
- link_info.discard = discard_none;
+ link_info.discard = discard_sec_merge;
link_info.keep_memory = true;
link_info.input_bfds = NULL;
link_info.create_object_symbols_section = NULL;
+ link_info.gc_sym_list = NULL;
link_info.hash = NULL;
link_info.keep_hash = NULL;
link_info.notice_all = false;
and _fini symbols. We are compatible. */
link_info.init_function = "_init";
link_info.fini_function = "_fini";
+ link_info.new_dtags = false;
+ link_info.eh_frame_hdr = false;
+ link_info.flags = (bfd_vma) 0;
+ link_info.flags_1 = (bfd_vma) 0;
+ link_info.pei386_auto_import = false;
+ link_info.pei386_auto_import = -1;
+ link_info.combreloc = true;
+ link_info.spare_dynamic_tags = 5;
+ link_info.common_skip_ar_aymbols = bfd_link_common_skip_none;
ldfile_add_arch ("");
force_make_executable = false;
config.magic_demand_paged = true;
config.text_read_only = true;
- config.make_executable = true;
emulation = get_emulation (argc, argv);
ldemul_choose_mode (emulation);
- default_target = ldemul_choose_target ();
+ default_target = ldemul_choose_target (argc, argv);
lang_init ();
ldemul_before_parse ();
lang_has_input_file = false;
einfo (_("%P%F: -r and -shared may not be used together\n"));
}
+ if (! link_info.shared)
+ {
+ if (command_line.filter_shlib)
+ einfo (_("%P%F: -F may not be used without -shared\n"));
+ if (command_line.auxiliary_filters)
+ einfo (_("%P%F: -f may not be used without -shared\n"));
+ }
+
/* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
don't see how else this can be handled, since in this case we
must preserve all externally visible symbols. */
if (link_info.relocateable && link_info.strip == strip_all)
{
link_info.strip = strip_debugger;
- if (link_info.discard == discard_none)
+ if (link_info.discard == discard_sec_merge)
link_info.discard = discard_all;
}
the -L's in argv have been processed. */
set_scripts_dir ();
- if (had_script == false)
+ /* If we have not already opened and parsed a linker script
+ read the emulation's appropriate default script. */
+ if (saved_script_handle == NULL)
{
- /* Read the emulation's appropriate default script. */
int isfile;
char *s = ldemul_get_script (&isfile);
ldfile_open_command_file (s);
else
{
- if (trace_file_tries)
- {
- info_msg (_("using internal linker script:\n"));
- info_msg ("==================================================\n");
- info_msg (s);
- info_msg ("\n==================================================\n");
- }
lex_string = s;
lex_redirect (s);
}
lex_string = NULL;
}
+ if (trace_file_tries)
+ {
+ if (saved_script_handle)
+ info_msg (_("using external linker script:"));
+ else
+ info_msg (_("using internal linker script:"));
+ info_msg ("\n==================================================\n");
+
+ if (saved_script_handle)
+ {
+ static const int ld_bufsz = 8193;
+ size_t n;
+ char *buf = xmalloc (ld_bufsz);
+
+ rewind (saved_script_handle);
+ while ((n = fread (buf, 1, ld_bufsz - 1, saved_script_handle)) > 0)
+ {
+ buf[n] = 0;
+ info_msg (buf);
+ }
+ rewind (saved_script_handle);
+ free (buf);
+ }
+ else
+ {
+ int isfile;
+
+ info_msg (ldemul_get_script (&isfile));
+ }
+
+ info_msg ("\n==================================================\n");
+ }
+
lang_final ();
if (lang_has_input_file == false)
ldemul_after_parse ();
-
if (config.map_filename)
{
if (strcmp (config.map_filename, "-") == 0)
}
}
-
lang_process ();
/* Print error messages for any missing symbols, for any warning
- symbols, and possibly multiple definitions */
-
-
- if (config.text_read_only)
- {
- /* Look for a text section and mark the readonly attribute in it */
- asection *found = bfd_get_section_by_name (output_bfd, ".text");
-
- if (found != (asection *) NULL)
- {
- found->flags |= SEC_READONLY;
- }
- }
+ symbols, and possibly multiple definitions. */
if (link_info.relocateable)
output_bfd->flags &= ~EXEC_P;
einfo (_("%F%B: final close failed: %E\n"), 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 which does. */
-
+ executable file and it doesn't end in .exe, copy it to one
+ which does. */
if (! link_info.relocateable && command_line.force_exe_suffix)
{
int len = strlen (output_filename);
- if (len < 4
+ if (len < 4
|| (strcasecmp (output_filename + len - 4, ".exe") != 0
&& strcasecmp (output_filename + len - 4, ".dll") != 0))
{
}
else
{
- einfo(_("%P%F: missing argument to -m\n"));
+ einfo (_("%P%F: missing argument to -m\n"));
}
}
else if (strcmp (argv[i], "-mips1") == 0
|| strcmp (argv[i], "-mips2") == 0
|| strcmp (argv[i], "-mips3") == 0
- || strcmp (argv[i], "-mips4") == 0)
+ || strcmp (argv[i], "-mips32") == 0
+ || strcmp (argv[i], "-mips64") == 0
+ || strcmp (argv[i], "-mips4") == 0
+ || strcmp (argv[i], "-mips5") == 0)
{
- /* FIXME: The arguments -mips1, -mips2 and -mips3 are
+ /* FIXME: The arguments -mips1, -mips2, -mips3, etc. are
passed to the linker by some MIPS compilers. They
generally tell the linker to use a slightly different
library path. Perhaps someday these should be
dirlen = strlen (dir);
/* sizeof counts the terminating NUL. */
- buf = (char *) xmalloc (dirlen + sizeof("/ldscripts"));
+ buf = (char *) xmalloc (dirlen + sizeof ("/ldscripts"));
sprintf (buf, "%s/ldscripts", dir);
res = stat (buf, &s) == 0 && S_ISDIR (s.st_mode);
size_t dirlen;
if (check_for_scripts_dir (SCRIPTDIR))
- return; /* We've been installed normally. */
+ /* We've been installed normally. */
+ return;
/* Look for "ldscripts" in the dir where our binary is. */
end = strrchr (program_name, '/');
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ {
+ /* We could have \foo\bar, or /foo\bar. */
+ char *bslash = strrchr (program_name, '\\');
+ if (end == NULL || (bslash != NULL && bslash > end))
+ end = bslash;
+ }
+#endif
if (end == NULL)
{
dir[dirlen] = '\0';
if (check_for_scripts_dir (dir))
- return; /* Don't free dir. */
+ /* Don't free dir. */
+ return;
/* Look for "ldscripts" in <the dir where our binary is>/../lib. */
strcpy (dir + dirlen, "/../lib");
if (check_for_scripts_dir (dir))
return;
- free (dir); /* Well, we tried. */
+ /* Well, we tried. */
+ free (dir);
}
void
bfd_hash_newfunc,
61))
einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
- }
+ }
if (bfd_hash_lookup (link_info.notice_hash, name, true, true)
== (struct bfd_hash_entry *) NULL)
c = getc (file);
while (c != EOF)
{
- while (isspace (c))
+ while (ISSPACE (c))
c = getc (file);
if (c != EOF)
{
size_t len = 0;
- while (! isspace (c) && c != EOF)
+ while (! ISSPACE (c) && c != EOF)
{
buf[len] = c;
++len;
/* This is called when BFD has decided to include an archive member in
a link. */
-/*ARGSUSED*/
static boolean
add_archive_element (info, abfd, name)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
{
char buf[100];
- sprintf (buf, "%-29s %s\n\n", _("Archive member included"),
- _("because of file (symbol)"));
+ sprintf (buf, _("Archive member included because of file (symbol)\n\n"));
minfo ("%s", buf);
header_printed = true;
}
/* This is called when BFD has discovered a symbol which is defined
multiple times. */
-/*ARGSUSED*/
static boolean
multiple_definition (info, name, obfd, osec, oval, nbfd, nsec, nval)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
nbfd, nsec, nval, name);
if (obfd != (bfd *) NULL)
einfo (_("%D: first defined here\n"), obfd, osec, oval);
+
+ if (command_line.relax)
+ {
+ einfo (_("%P: Disabling relaxation: it will not work with multiple definitions\n"));
+ command_line.relax = 0;
+ }
+
return true;
}
or when two common symbols are found. We only do something if
-warn-common was used. */
-/*ARGSUSED*/
static boolean
multiple_common (info, name, obfd, otype, osize, nbfd, ntype, nsize)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
entry in the linker hash table for the set. SECTION and VALUE
represent a value which should be added to the set. */
-/*ARGSUSED*/
static boolean
add_to_set (info, h, reloc, abfd, section, value)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
/* A structure used by warning_callback to pass information through
bfd_map_over_sections. */
-struct warning_callback_info
-{
+struct warning_callback_info {
boolean found;
const char *warning;
const char *symbol;
/* This is called when there is a reference to a warning symbol. */
-/*ARGSUSED*/
static boolean
warning_callback (info, warning, symbol, abfd, section, address)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
/* This is called when an undefined symbol is found. */
-/*ARGSUSED*/
static boolean
-undefined_symbol (info, name, abfd, section, address)
+undefined_symbol (info, name, abfd, section, address, fatal)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *name;
bfd *abfd;
asection *section;
bfd_vma address;
+ boolean fatal ATTRIBUTE_UNUSED;
{
static char *error_name;
static unsigned int error_count;
error_count = 0;
if (error_name != (char *) NULL)
free (error_name);
- error_name = buystring (name);
+ error_name = xstrdup (name);
}
if (section != NULL)
{
if (error_count < MAX_ERRORS_IN_A_ROW)
- einfo (_("%X%C: undefined reference to `%T'\n"),
- abfd, section, address, name);
+ {
+ einfo (_("%C: undefined reference to `%T'\n"),
+ abfd, section, address, name);
+ if (fatal)
+ einfo ("%X");
+ }
else if (error_count == MAX_ERRORS_IN_A_ROW)
einfo (_("%D: more undefined references to `%T' follow\n"),
abfd, section, address, name);
else
{
if (error_count < MAX_ERRORS_IN_A_ROW)
- einfo (_("%X%B: undefined reference to `%T'\n"),
- abfd, name);
+ {
+ einfo (_("%B: undefined reference to `%T'\n"),
+ abfd, name);
+ if (fatal)
+ einfo ("%X");
+ }
else if (error_count == MAX_ERRORS_IN_A_ROW)
einfo (_("%B: more undefined references to `%T' follow\n"),
abfd, name);
/* This is called when a reloc overflows. */
-/*ARGSUSED*/
static boolean
reloc_overflow (info, name, reloc_name, addend, abfd, section, address)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
/* This is called when a dangerous relocation is made. */
-/*ARGSUSED*/
static boolean
reloc_dangerous (info, message, abfd, section, address)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
/* This is called when a reloc is being generated attached to a symbol
that is not being output. */
-/*ARGSUSED*/
static boolean
unattached_reloc (info, name, abfd, section, address)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
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