/* Main program of GNU linker.
- Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
+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. */
#include "bfd.h"
#include "sysdep.h"
#include <stdio.h>
+#include "safe-ctype.h"
#include "libiberty.h"
+#include "progress.h"
#include "bfdlink.h"
+#include "filenames.h"
-#include "config.h"
#include "ld.h"
#include "ldmain.h"
#include "ldmisc.h"
#include "ldgram.h"
#include "ldexp.h"
#include "ldlang.h"
-#include "ldemul.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
#include <string.h>
+#ifdef HAVE_SBRK
+#ifdef NEED_DECLARATION_SBRK
+extern PTR sbrk ();
+#endif
+#endif
+
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. */
instead of complaining if no input files are given. */
boolean version_printed;
+/* Nonzero means link in every member of an archive. */
+boolean whole_archive;
+
+/* True if we should demangle symbol names. */
+boolean demangling;
+
args_type command_line;
ld_config_type config;
+static void remove_output PARAMS ((void));
static boolean check_for_scripts_dir PARAMS ((char *dir));
static boolean add_archive_element PARAMS ((struct bfd_link_info *, bfd *,
const char *));
const char *name,
bfd *, asection *, bfd_vma));
static boolean warning_callback PARAMS ((struct bfd_link_info *,
- const char *));
+ const char *, const char *, bfd *,
+ asection *, bfd_vma));
+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 unattached_reloc PARAMS ((struct bfd_link_info *,
const char *, bfd *, asection *,
bfd_vma));
-static boolean notice_ysym PARAMS ((struct bfd_link_info *, const char *,
- 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,
reloc_overflow,
reloc_dangerous,
unattached_reloc,
- notice_ysym
+ notice
};
struct bfd_link_info link_info;
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);
}
char *emulation;
long start_time = get_run_time ();
+#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);
+
program_name = argv[0];
xmalloc_set_program_name (program_name);
+ START_PROGRESS (program_name, 0);
+
bfd_init ();
+ bfd_set_error_program_name (program_name);
+
xatexit (remove_output);
+ /* Set the default BFD target based on the configured target. Doing
+ this permits the linker to be configured for a particular target,
+ and linked against a shared BFD library which was configured for
+ a different target. The macro TARGET is defined by Makefile. */
+ if (! bfd_set_default_target (TARGET))
+ {
+ einfo (_("%X%P: can't set BFD default target to `%s': %E\n"), TARGET);
+ xexit (1);
+ }
+
+#if YYDEBUG
+ {
+ extern int yydebug;
+ yydebug = 1;
+ }
+#endif
+
/* Initialize the data about options. */
trace_files = trace_file_tries = version_printed = false;
- config.traditional_format = 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;
+ command_line.check_section_addresses = true;
+
+ /* We initialize DEMANGLING based on the environment variable
+ COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the
+ output of the linker, unless COLLECT_NO_DEMANGLE is set in the
+ environment. Acting the same way here lets us provide the same
+ interface by default. */
+ demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL;
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.strip = strip_none;
- link_info.discard = discard_none;
- link_info.lprefix_len = 1;
- link_info.lprefix = "L";
+ 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.hash = NULL;
link_info.keep_hash = NULL;
+ link_info.notice_all = false;
link_info.notice_hash = NULL;
+ link_info.wrap_hash = NULL;
+ link_info.mpc860c0 = 0;
+ /* 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.new_dtags = false;
+ link_info.flags = (bfd_vma) 0;
+ link_info.flags_1 = (bfd_vma) 0;
+ link_info.pei386_auto_import = false;
+ link_info.combreloc = false;
+ link_info.spare_dynamic_tags = 5;
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;
parse_args (argc, argv);
+ ldemul_set_symbols ();
+
if (link_info.relocateable)
{
- if (command_line.relax)
- einfo ("%P%F: -relax and -r may not be used together\n");
- if (config.dynamic_link)
- einfo ("%P%F: -r and -call_shared may not be used together\n");
- if (link_info.strip == strip_all)
- einfo ("%P%F: -r and -s may not be used together\n");
+ if (command_line.gc_sections)
+ einfo ("%P%F: --gc-sections and -r may not be used together\n");
+ if (link_info.mpc860c0)
+ einfo (_("%P%F: -r and --mpc860c0 may not be used together\n"));
+ else 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");
+ 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_sec_merge)
+ link_info.discard = discard_all;
}
/* This essentially adds another -L directory so this must be done after
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);
+ char *s = ldemul_get_script (& isfile);
if (isfile)
ldfile_open_command_file (s);
else
- lex_redirect (s);
+ {
+ lex_string = s;
+ lex_redirect (s);
+ }
parser_input = input_script;
yyparse ();
+ lex_string = NULL;
+ }
+
+ if (trace_file_tries)
+ {
+ info_msg (_("using %s linker script:\n"),
+ saved_script_handle ? "external" : "internal");
+ info_msg ("==================================================\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 (version_printed)
xexit (0);
- einfo ("%P%F: no input files\n");
+ einfo (_("%P%F: no input files\n"));
}
if (trace_files)
{
- info_msg ("%P: mode %s\n", emulation);
+ info_msg (_("%P: mode %s\n"), emulation);
}
ldemul_after_parse ();
-
if (config.map_filename)
{
if (strcmp (config.map_filename, "-") == 0)
config.map_file = fopen (config.map_filename, FOPEN_WT);
if (config.map_file == (FILE *) NULL)
{
- einfo ("%P%F: cannot open map file %s: %E\n",
+ bfd_set_error (bfd_error_system_call);
+ einfo (_("%P%F: cannot open map file %s: %E\n"),
config.map_filename);
}
}
}
-
lang_process ();
/* Print error messages for any missing symbols, for any warning
- symbols, and possibly multiple definitions */
+ symbols, and possibly multiple definitions. */
-
- if (config.text_read_only)
+ if (! link_info.relocateable)
{
- /* Look for a text section and mark the readonly attribute in it */
+ /* Look for a text section and switch the readonly attribute in it. */
asection *found = bfd_get_section_by_name (output_bfd, ".text");
if (found != (asection *) NULL)
{
- found->flags |= SEC_READONLY;
+ if (config.text_read_only)
+ found->flags |= SEC_READONLY;
+ else
+ found->flags &= ~SEC_READONLY;
}
}
ldwrite ();
+ if (config.map_file != NULL)
+ lang_map ();
+ if (command_line.cref)
+ output_cref (config.map_file != NULL ? config.map_file : stdout);
+ if (nocrossref_list != NULL)
+ check_nocrossrefs ();
+
/* Even if we're producing relocateable output, some non-fatal errors should
be reported in the exit status. (What non-fatal errors, if any, do we
want to ignore for relocateable output?) */
{
if (trace_files == true)
{
- einfo ("%P: link errors found, deleting executable `%s'\n",
+ einfo (_("%P: link errors found, deleting executable `%s'\n"),
output_filename);
}
- if (output_bfd->iostream)
- fclose ((FILE *) (output_bfd->iostream));
+ /* The file will be removed by remove_output. */
- unlink (output_filename);
xexit (1);
}
else
{
if (! bfd_close (output_bfd))
- einfo ("%F%B: final close failed: %E\n", output_bfd);
+ 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. */
+ if (! link_info.relocateable && command_line.force_exe_suffix)
+ {
+ int len = strlen (output_filename);
+ if (len < 4
+ || (strcasecmp (output_filename + len - 4, ".exe") != 0
+ && strcasecmp (output_filename + len - 4, ".dll") != 0))
+ {
+ FILE *src;
+ FILE *dst;
+ const int bsize = 4096;
+ char *buf = xmalloc (bsize);
+ int l;
+ char *dst_name = xmalloc (len + 5);
+ strcpy (dst_name, output_filename);
+ strcat (dst_name, ".exe");
+ src = fopen (output_filename, FOPEN_RB);
+ dst = fopen (dst_name, FOPEN_WB);
+
+ if (!src)
+ einfo (_("%X%P: unable to open for source of copy `%s'\n"), output_filename);
+ if (!dst)
+ einfo (_("%X%P: unable to open for destination of copy `%s'\n"), dst_name);
+ while ((l = fread (buf, 1, bsize, src)) > 0)
+ {
+ int done = fwrite (buf, 1, l, dst);
+ if (done != l)
+ {
+ einfo (_("%P: Error writing file `%s'\n"), dst_name);
+ }
+ }
+ fclose (src);
+ if (fclose (dst) == EOF)
+ {
+ einfo (_("%P: Error closing file `%s'\n"), dst_name);
+ }
+ free (dst_name);
+ free (buf);
+ }
+ }
}
+ END_PROGRESS (program_name);
+
if (config.stats)
{
- extern char **environ;
+#ifdef HAVE_SBRK
char *lim = (char *) sbrk (0);
+#endif
long run_time = get_run_time () - start_time;
- fprintf (stderr, "%s: total time in link: %ld.%06ld\n",
+ fprintf (stderr, _("%s: total time in link: %ld.%06ld\n"),
program_name, run_time / 1000000, run_time % 1000000);
- fprintf (stderr, "%s: data size %ld\n", program_name,
+#ifdef HAVE_SBRK
+ fprintf (stderr, _("%s: data size %ld\n"), program_name,
(long) (lim - (char *) &environ));
+#endif
}
/* Prevent remove_output from doing anything, after a successful link. */
char *emulation;
int i;
- emulation = (char *) getenv (EMULATION_ENVIRON);
+ emulation = getenv (EMULATION_ENVIRON);
if (emulation == NULL)
emulation = DEFAULT_EMULATION;
}
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], "-mips3") == 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, '/');
- if (end)
- {
- dirlen = end - program_name;
- /* Make a copy of program_name in dir.
- Leave room for later "/../lib". */
- dir = (char *) xmalloc (dirlen + 8);
- strncpy (dir, program_name, dirlen);
- dir[dirlen] = '\0';
- }
- else
+#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)
{
- dirlen = 1;
- dir = (char *) xmalloc (dirlen + 8);
- strcpy (dir, ".");
+ /* Don't look for ldscripts in the current directory. There is
+ too much potential for confusion. */
+ return;
}
+ dirlen = end - program_name;
+ /* Make a copy of program_name in dir.
+ Leave room for later "/../lib". */
+ dir = (char *) xmalloc (dirlen + 8);
+ strncpy (dir, program_name, dirlen);
+ 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
if (! bfd_hash_table_init_n (link_info.notice_hash,
bfd_hash_newfunc,
61))
- einfo ("%P%F: bfd_hash_table_init failed: %E\n");
- }
+ 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)
- einfo ("%P%F: bfd_hash_lookup failed: %E\n");
+ einfo (_("%P%F: bfd_hash_lookup failed: %E\n"));
+}
+
+/* Record a symbol to be wrapped, from the --wrap option. */
+
+void
+add_wrap (name)
+ const char *name;
+{
+ if (link_info.wrap_hash == NULL)
+ {
+ link_info.wrap_hash = ((struct bfd_hash_table *)
+ xmalloc (sizeof (struct bfd_hash_table)));
+ if (! bfd_hash_table_init_n (link_info.wrap_hash,
+ bfd_hash_newfunc,
+ 61))
+ einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
+ }
+ if (bfd_hash_lookup (link_info.wrap_hash, name, true, true) == NULL)
+ einfo (_("%P%F: bfd_hash_lookup failed: %E\n"));
}
/* Handle the -retain-symbols-file option. */
int c;
if (link_info.strip == strip_some)
- einfo ("%X%P: error: duplicate retain-symbols-file\n");
+ einfo (_("%X%P: error: duplicate retain-symbols-file\n"));
file = fopen (filename, "r");
if (file == (FILE *) NULL)
{
bfd_set_error (bfd_error_system_call);
- einfo ("%X%P: %s: %E", filename);
+ einfo ("%X%P: %s: %E\n", filename);
return;
}
link_info.keep_hash = ((struct bfd_hash_table *)
xmalloc (sizeof (struct bfd_hash_table)));
if (! bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc))
- einfo ("%P%F: bfd_hash_table_init failed: %E\n");
+ einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
bufsize = 100;
buf = (char *) xmalloc (bufsize);
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;
if (bfd_hash_lookup (link_info.keep_hash, buf, true, true)
== (struct bfd_hash_entry *) NULL)
- einfo ("%P%F: bfd_hash_lookup for insertion failed: %E");
+ einfo (_("%P%F: bfd_hash_lookup for insertion failed: %E\n"));
}
}
if (link_info.strip != strip_none)
- einfo ("%P: `-retain-symbols-file' overrides `-s' and `-S'\n");
+ einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n"));
link_info.strip = strip_some;
}
/* 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;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
bfd *abfd;
const char *name;
{
lang_input_statement_type *input;
input = ((lang_input_statement_type *)
- xmalloc ((bfd_size_type) sizeof (lang_input_statement_type)));
+ xmalloc (sizeof (lang_input_statement_type)));
input->filename = abfd->filename;
input->local_sym_name = abfd->filename;
input->the_bfd = abfd;
/* FIXME: The following fields are not set: header.next,
header.type, closed, passive_position, symbol_count,
- next_real_file, is_archive, target, real, common_section,
- common_output_section, complained. This bit of code is from the
- old decode_library_subfile function. I don't know whether any of
- those fields matters. */
+ next_real_file, is_archive, target, real. This bit of code is
+ from the old decode_library_subfile function. I don't know
+ whether any of those fields matters. */
ldlang_add_file (input);
if (config.map_file != (FILE *) NULL)
- minfo ("%s needed due to %T\n", abfd->filename, name);
+ {
+ static boolean header_printed;
+ struct bfd_link_hash_entry *h;
+ bfd *from;
+ int len;
+
+ h = bfd_link_hash_lookup (link_info.hash, name, false, false, true);
+
+ if (h == NULL)
+ from = NULL;
+ else
+ {
+ switch (h->type)
+ {
+ default:
+ from = NULL;
+ break;
+
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ from = h->u.def.section->owner;
+ break;
+
+ case bfd_link_hash_undefined:
+ case bfd_link_hash_undefweak:
+ from = h->u.undef.abfd;
+ break;
+
+ case bfd_link_hash_common:
+ from = h->u.c.p->section->owner;
+ break;
+ }
+ }
+
+ if (! header_printed)
+ {
+ char buf[100];
+
+ sprintf (buf, "%-29s %s\n\n", _("Archive member included"),
+ _("because of file (symbol)"));
+ minfo ("%s", buf);
+ header_printed = true;
+ }
+
+ if (bfd_my_archive (abfd) == NULL)
+ {
+ minfo ("%s", bfd_get_filename (abfd));
+ len = strlen (bfd_get_filename (abfd));
+ }
+ else
+ {
+ minfo ("%s(%s)", bfd_get_filename (bfd_my_archive (abfd)),
+ bfd_get_filename (abfd));
+ len = (strlen (bfd_get_filename (bfd_my_archive (abfd)))
+ + strlen (bfd_get_filename (abfd))
+ + 2);
+ }
+
+ if (len >= 29)
+ {
+ print_nl ();
+ len = 0;
+ }
+ while (len < 30)
+ {
+ print_space ();
+ ++len;
+ }
+
+ if (from != NULL)
+ minfo ("%B ", from);
+ if (h != NULL)
+ minfo ("(%T)\n", h->root.string);
+ else
+ minfo ("(%s)\n", name);
+ }
if (trace_files || trace_file_tries)
info_msg ("%I\n", input);
/* 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;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *name;
bfd *obfd;
asection *osec;
asection *nsec;
bfd_vma nval;
{
- einfo ("%X%C: multiple definition of `%T'\n",
+ /* If either section has the output_section field set to
+ bfd_abs_section_ptr, it means that the section is being
+ discarded, and this is not really a multiple definition at all.
+ FIXME: It would be cleaner to somehow ignore symbols defined in
+ sections which are being discarded. */
+ if ((osec->output_section != NULL
+ && ! bfd_is_abs_section (osec)
+ && bfd_is_abs_section (osec->output_section))
+ || (nsec->output_section != NULL
+ && ! bfd_is_abs_section (nsec)
+ && bfd_is_abs_section (nsec->output_section)))
+ return true;
+
+ einfo (_("%X%C: multiple definition of `%T'\n"),
nbfd, nsec, nval, name);
if (obfd != (bfd *) NULL)
- einfo ("%D: first defined here\n", obfd, osec, oval);
+ 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;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *name;
bfd *obfd;
enum bfd_link_hash_type otype;
if (! config.warn_common)
return true;
- if (ntype == bfd_link_hash_defined)
+ if (ntype == bfd_link_hash_defined
+ || ntype == bfd_link_hash_defweak
+ || ntype == bfd_link_hash_indirect)
{
ASSERT (otype == bfd_link_hash_common);
- einfo ("%B: warning: definition of `%T' overriding common\n",
+ einfo (_("%B: warning: definition of `%T' overriding common\n"),
nbfd, name);
- einfo ("%B: warning: common is here\n", obfd);
+ if (obfd != NULL)
+ einfo (_("%B: warning: common is here\n"), obfd);
}
- else if (otype == bfd_link_hash_defined)
+ else if (otype == bfd_link_hash_defined
+ || otype == bfd_link_hash_defweak
+ || otype == bfd_link_hash_indirect)
{
ASSERT (ntype == bfd_link_hash_common);
- einfo ("%B: warning: common of `%T' overridden by definition\n",
+ einfo (_("%B: warning: common of `%T' overridden by definition\n"),
nbfd, name);
- einfo ("%B: warning: defined here\n", obfd);
+ if (obfd != NULL)
+ einfo (_("%B: warning: defined here\n"), obfd);
}
else
{
ASSERT (otype == bfd_link_hash_common && ntype == bfd_link_hash_common);
if (osize > nsize)
{
- einfo ("%B: warning: common of `%T' overridden by larger common\n",
+ einfo (_("%B: warning: common of `%T' overridden by larger common\n"),
nbfd, name);
- einfo ("%B: warning: larger common is here\n", obfd);
+ if (obfd != NULL)
+ einfo (_("%B: warning: larger common is here\n"), obfd);
}
else if (nsize > osize)
{
- einfo ("%B: warning: common of `%T' overriding smaller common\n",
+ einfo (_("%B: warning: common of `%T' overriding smaller common\n"),
nbfd, name);
- einfo ("%B: warning: smaller common is here\n", obfd);
+ if (obfd != NULL)
+ einfo (_("%B: warning: smaller common is here\n"), obfd);
}
else
{
- einfo ("%B: warning: multiple common of `%T'\n", nbfd, name);
- einfo ("%B: warning: previous common is here\n", obfd);
+ einfo (_("%B: warning: multiple common of `%T'\n"), nbfd, name);
+ if (obfd != NULL)
+ einfo (_("%B: warning: previous common is here\n"), obfd);
}
}
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;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
struct bfd_link_hash_entry *h;
bfd_reloc_code_real_type reloc;
bfd *abfd;
asection *section;
bfd_vma value;
{
+ if (config.warn_constructors)
+ einfo (_("%P: warning: global constructor %s used\n"),
+ h->root.string);
+
if (! config.build_constructors)
return true;
- ldctor_add_set_entry (h, reloc, section, value);
+ ldctor_add_set_entry (h, reloc, (const char *) NULL, section, value);
if (h->type == bfd_link_hash_new)
{
asection *section;
bfd_vma value;
{
- char *set_name;
char *s;
struct bfd_link_hash_entry *h;
+ char set_name[1 + sizeof "__CTOR_LIST__"];
+
+ if (config.warn_constructors)
+ einfo (_("%P: warning: global constructor %s used\n"), name);
if (! config.build_constructors)
return true;
/* 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)
- einfo ("%P%F: BFD backend error: BFD_RELOC_CTOR unsupported");
+ if (bfd_reloc_type_lookup (output_bfd, BFD_RELOC_CTOR) == NULL
+ && (link_info.relocateable
+ || bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL))
+ einfo (_("%P%F: BFD backend error: BFD_RELOC_CTOR unsupported\n"));
- set_name = (char *) alloca (1 + sizeof "__CTOR_LIST__");
s = set_name;
if (bfd_get_symbol_leading_char (abfd) != '\0')
*s++ = bfd_get_symbol_leading_char (abfd);
else
strcpy (s, "__DTOR_LIST__");
- if (config.map_file != (FILE *) NULL)
- fprintf (config.map_file,
- "Adding %s to constructor/destructor set %s\n", name, set_name);
-
h = bfd_link_hash_lookup (info->hash, set_name, true, true, true);
if (h == (struct bfd_link_hash_entry *) NULL)
- einfo ("%P%F: bfd_link_hash_lookup failed: %E");
+ einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
if (h->type == bfd_link_hash_new)
{
h->type = bfd_link_hash_undefined;
ourselves. */
}
- ldctor_add_set_entry (h, BFD_RELOC_CTOR, section, value);
+ ldctor_add_set_entry (h, BFD_RELOC_CTOR, name, section, value);
return true;
}
+/* A structure used by warning_callback to pass information through
+ bfd_map_over_sections. */
+
+struct warning_callback_info {
+ boolean found;
+ const char *warning;
+ const char *symbol;
+ asymbol **asymbols;
+};
+
/* This is called when there is a reference to a warning symbol. */
-/*ARGSUSED*/
static boolean
-warning_callback (info, warning)
- struct bfd_link_info *info;
+warning_callback (info, warning, symbol, abfd, section, address)
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *warning;
+ const char *symbol;
+ bfd *abfd;
+ asection *section;
+ bfd_vma address;
{
- einfo ("%P: %s\n", warning);
+ /* This is a hack to support warn_multiple_gp. FIXME: This should
+ have a cleaner interface, but what? */
+ if (! config.warn_multiple_gp
+ && strcmp (warning, "using multiple gp values") == 0)
+ return true;
+
+ if (section != NULL)
+ einfo ("%C: %s\n", abfd, section, address, warning);
+ else if (abfd == NULL)
+ einfo ("%P: %s\n", warning);
+ else if (symbol == NULL)
+ einfo ("%B: %s\n", abfd, warning);
+ else
+ {
+ lang_input_statement_type *entry;
+ asymbol **asymbols;
+ struct warning_callback_info info;
+
+ /* Look through the relocs to see if we can find a plausible
+ address. */
+
+ entry = (lang_input_statement_type *) abfd->usrdata;
+ if (entry != NULL && entry->asymbols != NULL)
+ asymbols = entry->asymbols;
+ else
+ {
+ long symsize;
+ long symbol_count;
+
+ symsize = bfd_get_symtab_upper_bound (abfd);
+ if (symsize < 0)
+ einfo (_("%B%F: could not read symbols: %E\n"), abfd);
+ asymbols = (asymbol **) xmalloc (symsize);
+ symbol_count = bfd_canonicalize_symtab (abfd, asymbols);
+ if (symbol_count < 0)
+ einfo (_("%B%F: could not read symbols: %E\n"), abfd);
+ if (entry != NULL)
+ {
+ entry->asymbols = asymbols;
+ entry->symbol_count = symbol_count;
+ }
+ }
+
+ info.found = false;
+ info.warning = warning;
+ info.symbol = symbol;
+ info.asymbols = asymbols;
+ bfd_map_over_sections (abfd, warning_find_reloc, (PTR) &info);
+
+ if (! info.found)
+ einfo ("%B: %s\n", abfd, warning);
+
+ if (entry == NULL)
+ free (asymbols);
+ }
+
return true;
}
+/* This is called by warning_callback for each section. It checks the
+ relocs of the section to see if it can find a reference to the
+ symbol which triggered the warning. If it can, it uses the reloc
+ to give an error message with a file and line number. */
+
+static void
+warning_find_reloc (abfd, sec, iarg)
+ bfd *abfd;
+ asection *sec;
+ PTR iarg;
+{
+ struct warning_callback_info *info = (struct warning_callback_info *) iarg;
+ long relsize;
+ arelent **relpp;
+ long relcount;
+ arelent **p, **pend;
+
+ if (info->found)
+ return;
+
+ relsize = bfd_get_reloc_upper_bound (abfd, sec);
+ if (relsize < 0)
+ einfo (_("%B%F: could not read relocs: %E\n"), abfd);
+ if (relsize == 0)
+ return;
+
+ relpp = (arelent **) xmalloc (relsize);
+ relcount = bfd_canonicalize_reloc (abfd, sec, relpp, info->asymbols);
+ if (relcount < 0)
+ einfo (_("%B%F: could not read relocs: %E\n"), abfd);
+
+ p = relpp;
+ pend = p + relcount;
+ for (; p < pend && *p != NULL; p++)
+ {
+ arelent *q = *p;
+
+ if (q->sym_ptr_ptr != NULL
+ && *q->sym_ptr_ptr != NULL
+ && strcmp (bfd_asymbol_name (*q->sym_ptr_ptr), info->symbol) == 0)
+ {
+ /* We found a reloc for the symbol we are looking for. */
+ einfo ("%C: %s\n", abfd, sec, q->address, info->warning);
+ info->found = true;
+ break;
+ }
+ }
+
+ free (relpp);
+}
+
/* This is called when an undefined symbol is found. */
-/*ARGSUSED*/
static boolean
-undefined_symbol (info, name, abfd, section, address)
- struct bfd_link_info *info;
+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;
#define MAX_ERRORS_IN_A_ROW 5
+ if (config.warn_once)
+ {
+ static struct bfd_hash_table *hash;
+
+ /* Only warn once about a particular undefined symbol. */
+
+ if (hash == NULL)
+ {
+ hash = ((struct bfd_hash_table *)
+ xmalloc (sizeof (struct bfd_hash_table)));
+ if (! bfd_hash_table_init (hash, bfd_hash_newfunc))
+ einfo (_("%F%P: bfd_hash_table_init failed: %E\n"));
+ }
+
+ if (bfd_hash_lookup (hash, name, false, false) != NULL)
+ return true;
+
+ if (bfd_hash_lookup (hash, name, true, true) == NULL)
+ einfo (_("%F%P: bfd_hash_lookup failed: %E\n"));
+ }
+
/* We never print more than a reasonable number of errors in a row
for a single symbol. */
if (error_name != (char *) NULL
error_count = 0;
if (error_name != (char *) NULL)
free (error_name);
- error_name = buystring (name);
+ error_name = xstrdup (name);
}
- if (error_count < MAX_ERRORS_IN_A_ROW)
- einfo ("%X%C: undefined reference to `%T'\n",
- abfd, section, address, name);
- else if (error_count == MAX_ERRORS_IN_A_ROW)
- einfo ("%D: more undefined references to `%T' follow\n",
- abfd, section, address, name);
+ if (section != NULL)
+ {
+ if (error_count < MAX_ERRORS_IN_A_ROW)
+ {
+ 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 (_("%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);
+ }
return true;
}
/* 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;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *name;
const char *reloc_name;
bfd_vma addend;
bfd_vma address;
{
if (abfd == (bfd *) NULL)
- einfo ("%P%X: generated");
+ einfo (_("%P%X: generated"));
else
einfo ("%X%C:", abfd, section, address);
- einfo (" relocation truncated to fit: %s %T", reloc_name, name);
+ einfo (_(" relocation truncated to fit: %s %T"), reloc_name, name);
if (addend != 0)
einfo ("+%v", addend);
einfo ("\n");
/* This is called when a dangerous relocation is made. */
-/*ARGSUSED*/
static boolean
reloc_dangerous (info, message, abfd, section, address)
- struct bfd_link_info *info;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *message;
bfd *abfd;
asection *section;
bfd_vma address;
{
if (abfd == (bfd *) NULL)
- einfo ("%P%X: generated");
+ einfo (_("%P%X: generated"));
else
einfo ("%X%C:", abfd, section, address);
- einfo ("dangerous relocation: %s\n", message);
+ einfo (_("dangerous relocation: %s\n"), message);
return true;
}
/* 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;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *name;
bfd *abfd;
asection *section;
bfd_vma address;
{
if (abfd == (bfd *) NULL)
- einfo ("%P%X: generated");
+ 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 (_(" reloc refers to symbol `%T' which is not being output\n"), name);
return true;
}
-/* This is called when a symbol in notice_hash is found. Symbols are
- put in notice_hash using the -y option. */
+/* This is called if link_info.notice_all is set, or when a symbol in
+ link_info.notice_hash is found. Symbols are put in notice_hash
+ using the -y option. */
-/*ARGSUSED*/
static boolean
-notice_ysym (info, name, abfd, section, value)
+notice (info, name, abfd, section, value)
struct bfd_link_info *info;
const char *name;
bfd *abfd;
asection *section;
bfd_vma value;
{
- einfo ("%B: %s %s\n", abfd,
- bfd_is_und_section (section) ? "reference to" : "definition of",
- name);
+ if (! info->notice_all
+ || (info->notice_hash != NULL
+ && bfd_hash_lookup (info->notice_hash, name, false, false) != NULL))
+ {
+ if (bfd_is_und_section (section))
+ einfo ("%B: reference to %s\n", abfd, name);
+ else
+ einfo ("%B: definition of %s\n", abfd, name);
+ }
+
+ if (command_line.cref || nocrossref_list != NULL)
+ add_cref (name, abfd, section, value);
+
return true;
}
projects / binutils.git / blobdiff