/* 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,
+ 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ 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
-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.
+ 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.
-GLD 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 GLD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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. */
-
-#include "bfd.h"
#include "sysdep.h"
-#include <stdio.h>
+#include "bfd.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 "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"
+#ifdef ENABLE_PLUGINS
+#include "plugin.h"
+#include "plugin-api.h"
+#include "libbfd.h"
+#endif /* ENABLE_PLUGINS */
-/* 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>
-/* Use sbrk() except on specific OS types */
-#if !defined(__amigados__) && !defined(WINDOWS_NT)
-#define HAVE_SBRK
+#ifdef HAVE_SBRK
+#if !HAVE_DECL_SBRK
+extern void *sbrk ();
+#endif
#endif
-static char *get_emulation PARAMS ((int, char **));
-static void set_scripts_dir PARAMS ((void));
+#ifndef TARGET_SYSTEM_ROOT
+#define TARGET_SYSTEM_ROOT ""
+#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";
/* Name this program was invoked by. */
char *program_name;
-/* The file that we're creating */
-bfd *output_bfd = 0;
+/* The prefix for system library directories. */
+const char *ld_sysroot;
+
+/* The canonical representation of ld_sysroot. */
+char * ld_canon_sysroot;
+int ld_canon_sysroot_len;
/* Set by -G argument, for MIPS ECOFF target. */
int g_switch_value = 8;
/* Nonzero means print names of input files as processed. */
-boolean trace_files;
+bfd_boolean trace_files;
/* Nonzero means same, but note open failures, too. */
-boolean trace_file_tries;
+bfd_boolean trace_file_tries;
/* Nonzero means version number was printed, so exit successfully
instead of complaining if no input files are given. */
-boolean version_printed;
+bfd_boolean version_printed;
/* Nonzero means link in every member of an archive. */
-boolean whole_archive;
+bfd_boolean whole_archive;
+
+/* True means only create DT_NEEDED entries for dynamic libraries
+ if they actually satisfy some reference in a regular object. */
+bfd_boolean add_DT_NEEDED_for_regular;
+
+/* True means create DT_NEEDED entries for dynamic libraries that
+ are DT_NEEDED by dynamic libraries specifically mentioned on
+ the command line. */
+bfd_boolean add_DT_NEEDED_for_dynamic;
+
+/* TRUE if we should demangle symbol names. */
+bfd_boolean demangling;
args_type command_line;
ld_config_type config;
-static boolean check_for_scripts_dir PARAMS ((char *dir));
-static boolean add_archive_element PARAMS ((struct bfd_link_info *, bfd *,
- const char *));
-static boolean multiple_definition PARAMS ((struct bfd_link_info *,
- const char *,
- bfd *, asection *, bfd_vma,
- bfd *, asection *, bfd_vma));
-static boolean multiple_common PARAMS ((struct bfd_link_info *,
- const char *, bfd *,
- enum bfd_link_hash_type, bfd_vma,
- bfd *, enum bfd_link_hash_type,
- bfd_vma));
-static boolean add_to_set PARAMS ((struct bfd_link_info *,
- struct bfd_link_hash_entry *,
- bfd_reloc_code_real_type,
- bfd *, asection *, bfd_vma));
-static boolean constructor_callback PARAMS ((struct bfd_link_info *,
- boolean constructor,
- const char *name,
- bfd *, asection *, bfd_vma));
-static boolean warning_callback PARAMS ((struct bfd_link_info *,
- const char *));
-static boolean undefined_symbol PARAMS ((struct bfd_link_info *,
- const char *, bfd *,
- asection *, bfd_vma));
-static boolean reloc_overflow PARAMS ((struct bfd_link_info *, const char *,
- const char *, bfd_vma,
- bfd *, asection *, bfd_vma));
-static boolean reloc_dangerous PARAMS ((struct bfd_link_info *, const char *,
- 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));
+sort_type sort_section;
+
+static const char *get_sysroot
+ (int, char **);
+static char *get_emulation
+ (int, char **);
+static bfd_boolean add_archive_element
+ (struct bfd_link_info *, bfd *, const char *, bfd **);
+static bfd_boolean multiple_definition
+ (struct bfd_link_info *, struct bfd_link_hash_entry *,
+ bfd *, asection *, bfd_vma);
+static bfd_boolean multiple_common
+ (struct bfd_link_info *, struct bfd_link_hash_entry *,
+ bfd *, enum bfd_link_hash_type, bfd_vma);
+static bfd_boolean add_to_set
+ (struct bfd_link_info *, struct bfd_link_hash_entry *,
+ bfd_reloc_code_real_type, bfd *, asection *, bfd_vma);
+static bfd_boolean constructor_callback
+ (struct bfd_link_info *, bfd_boolean, const char *, bfd *,
+ asection *, bfd_vma);
+static bfd_boolean warning_callback
+ (struct bfd_link_info *, const char *, const char *, bfd *,
+ asection *, bfd_vma);
+static void warning_find_reloc
+ (bfd *, asection *, void *);
+static bfd_boolean undefined_symbol
+ (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma,
+ bfd_boolean);
+static bfd_boolean reloc_overflow
+ (struct bfd_link_info *, struct bfd_link_hash_entry *, const char *,
+ const char *, bfd_vma, bfd *, asection *, bfd_vma);
+static bfd_boolean reloc_dangerous
+ (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma);
+static bfd_boolean unattached_reloc
+ (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma);
+static bfd_boolean notice
+ (struct bfd_link_info *, struct bfd_link_hash_entry *,
+ bfd *, asection *, bfd_vma, flagword, const char *);
static struct bfd_link_callbacks link_callbacks =
{
reloc_overflow,
reloc_dangerous,
unattached_reloc,
- notice_ysym
+ notice,
+ einfo,
+ info_msg,
+ minfo,
+ ldlang_override_segment_assignment
};
struct bfd_link_info link_info;
\f
static void
-remove_output ()
+ld_cleanup (void)
{
- if (output_filename)
- {
- if (output_bfd && output_bfd->iostream)
- fclose((FILE *)(output_bfd->iostream));
- if (delete_output_file_on_failure)
- unlink (output_filename);
- }
+ bfd_cache_close_all ();
+#ifdef ENABLE_PLUGINS
+ plugin_call_cleanup ();
+#endif
+ if (output_filename && delete_output_file_on_failure)
+ unlink_if_ordinary (output_filename);
}
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
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);
+ expandargv (&argc, &argv);
+
bfd_init ();
- xatexit (remove_output);
+ bfd_set_error_program_name (program_name);
- /* Initialize the data about options. */
- trace_files = trace_file_tries = version_printed = false;
- whole_archive = false;
- config.traditional_format = false;
- config.build_constructors = true;
- config.dynamic_link = false;
- command_line.force_common_definition = false;
- command_line.interpreter = NULL;
- command_line.rpath = NULL;
+ xatexit (ld_cleanup);
- link_info.callbacks = &link_callbacks;
- link_info.relocateable = false;
- link_info.shared = false;
- link_info.strip = strip_none;
- link_info.discard = discard_none;
- link_info.lprefix_len = 1;
- link_info.lprefix = "L";
- 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_hash = NULL;
- link_info.subsystem = console;
- link_info.stack_heap_parameters.stack_defined = false;
- link_info.stack_heap_parameters.heap_defined = false;
- link_info.stack_heap_parameters.stack_reserve = 0;
- link_info.stack_heap_parameters.stack_commit = 0;
- link_info.stack_heap_parameters.heap_reserve = 0;
- link_info.stack_heap_parameters.heap_commit = 0;
+ /* Set up the sysroot directory. */
+ ld_sysroot = get_sysroot (argc, argv);
+ if (*ld_sysroot)
+ {
+ if (*TARGET_SYSTEM_ROOT == 0)
+ {
+ einfo ("%P%F: this linker was not configured to use sysroots\n");
+ ld_sysroot = "";
+ }
+ else
+ ld_canon_sysroot = lrealpath (ld_sysroot);
+ }
+ if (ld_canon_sysroot)
+ ld_canon_sysroot_len = strlen (ld_canon_sysroot);
+ else
+ ld_canon_sysroot_len = -1;
+ /* 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);
+ }
- ldfile_add_arch ("");
+#if YYDEBUG
+ {
+ extern int yydebug;
+ yydebug = 1;
+ }
+#endif
- config.make_executable = true;
- force_make_executable = false;
- config.magic_demand_paged = true;
- config.text_read_only = true;
- config.make_executable = true;
+ config.build_constructors = TRUE;
+ config.rpath_separator = ':';
+ config.split_by_reloc = (unsigned) -1;
+ config.split_by_file = (bfd_size_type) -1;
+ 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 = -1;
+ command_line.disable_target_specific_optimizations = -1;
+
+ /* 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.allow_undefined_version = TRUE;
+ link_info.keep_memory = TRUE;
+ link_info.combreloc = TRUE;
+ link_info.strip_discarded = TRUE;
+ link_info.emit_hash = TRUE;
+ link_info.callbacks = &link_callbacks;
+ 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.spare_dynamic_tags = 5;
+ link_info.path_separator = ':';
+ ldfile_add_arch ("");
emulation = get_emulation (argc, argv);
ldemul_choose_mode (emulation);
- default_target = ldemul_choose_target ();
+ default_target = ldemul_choose_target (argc, argv);
+ config.maxpagesize = bfd_emul_get_maxpagesize (default_target);
+ config.commonpagesize = bfd_emul_get_commonpagesize (default_target);
lang_init ();
ldemul_before_parse ();
- lang_has_input_file = false;
+ lang_has_input_file = FALSE;
parse_args (argc, argv);
- 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.shared)
- einfo ("%P%F: -r and -shared may not be used together\n");
- }
+ if (config.hash_table_size != 0)
+ bfd_hash_set_default_size (config.hash_table_size);
+
+#ifdef ENABLE_PLUGINS
+ /* Now all the plugin arguments have been gathered, we can load them. */
+ if (plugin_load_plugins ())
+ einfo (_("%P%F: %s: error loading plugin\n"), plugin_error_plugin ());
+#endif /* ENABLE_PLUGINS */
- /* 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)
+ ldemul_set_symbols ();
+
+ /* 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)
{
- link_info.strip = strip_debugger;
- if (link_info.discard == discard_none)
- link_info.discard = discard_all;
+ ldfile_open_command_file (command_line.default_script);
+ parser_input = input_script;
+ yyparse ();
}
- /* 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);
if (isfile)
- ldfile_open_command_file (s);
+ ldfile_open_default_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);
}
parser_input = input_script;
yyparse ();
+ 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 = (char *) 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");
}
+ if (command_line.print_output_format)
+ info_msg ("%s\n", lang_get_output_target ());
+
lang_final ();
- if (lang_has_input_file == false)
+ if (!lang_has_input_file)
{
- if (version_printed)
+ if (version_printed || command_line.print_output_format)
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)
if (config.map_file == (FILE *) NULL)
{
bfd_set_error (bfd_error_system_call);
- einfo ("%P%F: cannot open map file %s: %E\n",
+ 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 */
-
-
- 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;
- }
- }
-
- if (link_info.relocateable)
- output_bfd->flags &= ~EXEC_P;
+ symbols, and possibly multiple definitions. */
+ if (link_info.relocatable)
+ link_info.output_bfd->flags &= ~EXEC_P;
else
- output_bfd->flags |= EXEC_P;
+ link_info.output_bfd->flags |= EXEC_P;
ldwrite ();
- /* 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 (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 ();
- if (config.make_executable == false && force_make_executable == false)
- {
- if (trace_files == true)
- {
- einfo ("%P: link errors found, deleting executable `%s'\n",
- output_filename);
- }
+ lang_finish ();
- if (output_bfd->iostream)
- fclose ((FILE *) (output_bfd->iostream));
+ /* 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?) */
+ if (!config.make_executable && !force_make_executable)
+ {
+ if (trace_files)
+ einfo (_("%P: link errors found, deleting executable `%s'\n"),
+ output_filename);
- unlink (output_filename);
+ /* The file will be removed by ld_cleanup. */
xexit (1);
}
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
+ which does. */
+ if (! link_info.relocatable && 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 = (char *) xmalloc (bsize);
+ int l;
+ char *dst_name = (char *) 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",
+ fflush (stdout);
+ fprintf (stderr, _("%s: total time in link: %ld.%06ld\n"),
program_name, run_time / 1000000, run_time % 1000000);
#ifdef HAVE_SBRK
- fprintf (stderr, "%s: data size %ld\n", program_name,
+ fprintf (stderr, _("%s: data size %ld\n"), program_name,
(long) (lim - (char *) &environ));
#endif
+ fflush (stderr);
}
- /* Prevent remove_output from doing anything, after a successful link. */
+ /* Prevent ld_cleanup from doing anything, after a successful link. */
output_filename = NULL;
xexit (0);
return 0;
}
+/* If the configured sysroot is relocatable, try relocating it based on
+ default prefix FROM. Return the relocated directory if it exists,
+ otherwise return null. */
+
+static char *
+get_relative_sysroot (const char *from ATTRIBUTE_UNUSED)
+{
+#ifdef TARGET_SYSTEM_ROOT_RELOCATABLE
+ char *path;
+ struct stat s;
+
+ path = make_relative_prefix (program_name, from, TARGET_SYSTEM_ROOT);
+ if (path)
+ {
+ if (stat (path, &s) == 0 && S_ISDIR (s.st_mode))
+ return path;
+ free (path);
+ }
+#endif
+ return 0;
+}
+
+/* Return the sysroot directory. Return "" if no sysroot is being used. */
+
+static const char *
+get_sysroot (int argc, char **argv)
+{
+ int i;
+ const char *path;
+
+ for (i = 1; i < argc; i++)
+ if (CONST_STRNEQ (argv[i], "--sysroot="))
+ return argv[i] + strlen ("--sysroot=");
+
+ path = get_relative_sysroot (BINDIR);
+ if (path)
+ return path;
+
+ path = get_relative_sysroot (TOOLBINDIR);
+ if (path)
+ return path;
+
+ return TARGET_SYSTEM_ROOT;
+}
+
/* We need to find any explicitly given emulation in order to initialize the
state that's needed by the lex&yacc argument parser (parse_args). */
static char *
-get_emulation (argc, argv)
- int argc;
- char **argv;
+get_emulation (int argc, char **argv)
{
char *emulation;
int i;
- emulation = (char *) getenv (EMULATION_ENVIRON);
+ emulation = getenv (EMULATION_ENVIRON);
if (emulation == NULL)
emulation = DEFAULT_EMULATION;
for (i = 1; i < argc; i++)
{
- if (!strncmp (argv[i], "-m", 2))
+ if (CONST_STRNEQ (argv[i], "-m"))
{
if (argv[i][2] == '\0')
{
i++;
}
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], "-mips4") == 0
+ || strcmp (argv[i], "-mips5") == 0
+ || strcmp (argv[i], "-mips32") == 0
+ || strcmp (argv[i], "-mips32r2") == 0
+ || strcmp (argv[i], "-mips64") == 0
+ || strcmp (argv[i], "-mips64r2") == 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
return emulation;
}
-/* If directory DIR contains an "ldscripts" subdirectory,
- add DIR to the library search path and return true,
- else return false. */
-
-static boolean
-check_for_scripts_dir (dir)
- char *dir;
+void
+add_ysym (const char *name)
{
- size_t dirlen;
- char *buf;
- struct stat s;
- boolean res;
-
- dirlen = strlen (dir);
- /* sizeof counts the terminating NUL. */
- buf = (char *) xmalloc (dirlen + sizeof("/ldscripts"));
- sprintf (buf, "%s/ldscripts", dir);
+ if (link_info.notice_hash == NULL)
+ {
+ link_info.notice_hash =
+ (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table));
+ 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"));
+ }
- res = stat (buf, &s) == 0 && S_ISDIR (s.st_mode);
- free (buf);
- if (res)
- ldfile_add_library_path (dir, false);
- return res;
+ if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL)
+ einfo (_("%P%F: bfd_hash_lookup failed: %E\n"));
}
-/* Set the default directory for finding script files.
- Libraries will be searched for here too, but that's ok.
- We look for the "ldscripts" directory in:
-
- SCRIPTDIR (passed from Makefile)
- the dir where this program is (for using it from the build tree)
- the dir where this program is/../lib (for installing the tool suite elsewhere) */
+/* Record a symbol to be wrapped, from the --wrap option. */
-static void
-set_scripts_dir ()
+void
+add_wrap (const char *name)
{
- char *end, *dir;
- size_t dirlen;
-
- if (check_for_scripts_dir (SCRIPTDIR))
- return; /* We've been installed normally. */
-
- /* 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
+ if (link_info.wrap_hash == NULL)
{
- dirlen = 1;
- dir = (char *) xmalloc (dirlen + 8);
- strcpy (dir, ".");
+ 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,
+ sizeof (struct bfd_hash_entry),
+ 61))
+ einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
}
- if (check_for_scripts_dir (dir))
- return; /* Don't free dir. */
-
- /* 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. */
-}
-
-void
-add_ysym (name)
- const char *name;
-{
- if (link_info.notice_hash == (struct bfd_hash_table *) NULL)
- {
- link_info.notice_hash = ((struct bfd_hash_table *)
- xmalloc (sizeof (struct bfd_hash_table)));
- if (! bfd_hash_table_init_n (link_info.notice_hash,
- 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)
- einfo ("%P%F: bfd_hash_lookup 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. */
void
-add_keepsyms_file (filename)
- const char *filename;
+add_keepsyms_file (const char *filename)
{
FILE *file;
char *buf;
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)
+ if (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");
+ 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,
+ sizeof (struct bfd_hash_entry)))
+ 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 (len >= bufsize)
{
bufsize *= 2;
- buf = xrealloc (buf, bufsize);
+ buf = (char *) xrealloc (buf, bufsize);
}
c = getc (file);
}
buf[len] = '\0';
- 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");
+ if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL)
+ 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"));
+ free (buf);
link_info.strip = strip_some;
}
\f
/* 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;
- bfd *abfd;
- const char *name;
+static bfd_boolean
+add_archive_element (struct bfd_link_info *info,
+ bfd *abfd,
+ const char *name,
+ bfd **subsbfd ATTRIBUTE_UNUSED)
{
lang_input_statement_type *input;
+ lang_input_statement_type orig_input;
- input = ((lang_input_statement_type *)
- xmalloc ((bfd_size_type) sizeof (lang_input_statement_type)));
+ input = (lang_input_statement_type *)
+ xcalloc (1, sizeof (lang_input_statement_type));
input->filename = abfd->filename;
input->local_sym_name = abfd->filename;
input->the_bfd = abfd;
- input->asymbols = NULL;
- input->next = NULL;
- input->just_syms_flag = false;
- input->loaded = false;
- input->search_dirs_flag = false;
-
- /* 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. */
+
+ /* Save the original data for trace files/tries below, as plugins
+ (if enabled) may possibly alter it to point to a replacement
+ BFD, but we still want to output the original BFD filename. */
+ orig_input = *input;
+#ifdef ENABLE_PLUGINS
+ if (plugin_active_plugins_p () && !no_more_claiming)
+ {
+ /* We must offer this archive member to the plugins to claim. */
+ const char *filename = (bfd_my_archive (abfd) != NULL
+ ? bfd_my_archive (abfd)->filename : abfd->filename);
+ int fd = open (filename, O_RDONLY | O_BINARY);
+ if (fd >= 0)
+ {
+ struct ld_plugin_input_file file;
+
+ /* Offset and filesize must refer to the individual archive
+ member, not the whole file, and must exclude the header.
+ Fortunately for us, that is how the data is stored in the
+ origin field of the bfd and in the arelt_data. */
+ file.name = filename;
+ file.offset = abfd->origin;
+ file.filesize = arelt_size (abfd);
+ file.fd = fd;
+ plugin_maybe_claim (&file, input);
+ if (input->claimed)
+ {
+ input->claim_archive = TRUE;
+ *subsbfd = input->the_bfd;
+ }
+ }
+ }
+#endif /* ENABLE_PLUGINS */
ldlang_add_file (input);
- if (config.map_file != (FILE *) NULL)
- minfo ("%s needed due to %T\n", abfd->filename, name);
+ if (config.map_file != NULL)
+ {
+ static bfd_boolean header_printed;
+ struct bfd_link_hash_entry *h;
+ bfd *from;
+ int len;
- if (trace_files || trace_file_tries)
- info_msg ("%I\n", input);
+ h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
- return 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, _("Archive member included because of file (symbol)\n\n"));
+ 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", &orig_input);
+ return 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;
- const char *name;
- bfd *obfd;
- asection *osec;
- bfd_vma oval;
- bfd *nbfd;
- asection *nsec;
- bfd_vma nval;
+static bfd_boolean
+multiple_definition (struct bfd_link_info *info,
+ struct bfd_link_hash_entry *h,
+ bfd *nbfd,
+ asection *nsec,
+ bfd_vma nval)
{
- einfo ("%X%C: multiple definition of `%T'\n",
+ const char *name;
+ bfd *obfd;
+ asection *osec;
+ bfd_vma oval;
+
+ if (info->allow_multiple_definition)
+ return TRUE;
+
+ switch (h->type)
+ {
+ case bfd_link_hash_defined:
+ osec = h->u.def.section;
+ oval = h->u.def.value;
+ obfd = h->u.def.section->owner;
+ break;
+ case bfd_link_hash_indirect:
+ osec = bfd_ind_section_ptr;
+ oval = 0;
+ obfd = NULL;
+ break;
+ default:
+ abort ();
+ }
+
+ /* Ignore a redefinition of an absolute symbol to the
+ same value; it's harmless. */
+ if (h->type == bfd_link_hash_defined
+ && bfd_is_abs_section (osec)
+ && bfd_is_abs_section (nsec)
+ && nval == oval)
+ return TRUE;
+
+ /* 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;
+
+ name = h->root.string;
+ if (nbfd == NULL)
+ {
+ nbfd = obfd;
+ nsec = osec;
+ nval = oval;
+ obfd = NULL;
+ }
+ 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);
- return true;
+ if (obfd != NULL)
+ einfo (_("%D: first defined here\n"), obfd, osec, oval);
+
+ if (RELAXATION_ENABLED)
+ {
+ einfo (_("%P: Disabling relaxation: it will not work with multiple definitions\n"));
+ command_line.disable_target_specific_optimizations = -1;
+ }
+
+ return TRUE;
}
/* This is called when there is a definition of a common symbol, or
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;
- const char *name;
- bfd *obfd;
- enum bfd_link_hash_type otype;
- bfd_vma osize;
- bfd *nbfd;
- enum bfd_link_hash_type ntype;
- bfd_vma nsize;
+static bfd_boolean
+multiple_common (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_hash_entry *h,
+ bfd *nbfd,
+ enum bfd_link_hash_type ntype,
+ bfd_vma nsize)
{
- if (! config.warn_common)
- return true;
+ const char *name;
+ bfd *obfd;
+ enum bfd_link_hash_type otype;
+ bfd_vma osize;
+
+ if (!config.warn_common)
+ return TRUE;
+
+ name = h->root.string;
+ otype = h->type;
+ if (otype == bfd_link_hash_common)
+ {
+ obfd = h->u.c.p->section->owner;
+ osize = h->u.c.size;
+ }
+ else if (otype == bfd_link_hash_defined
+ || otype == bfd_link_hash_defweak)
+ {
+ obfd = h->u.def.section->owner;
+ osize = 0;
+ }
+ else
+ {
+ /* FIXME: It would nice if we could report the BFD which defined
+ an indirect symbol, but we don't have anywhere to store the
+ information. */
+ obfd = NULL;
+ osize = 0;
+ }
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);
if (obfd != NULL)
- einfo ("%B: warning: common is here\n", obfd);
+ einfo (_("%B: warning: common is here\n"), obfd);
}
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);
if (obfd != NULL)
- einfo ("%B: warning: defined here\n", obfd);
+ 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);
if (obfd != NULL)
- einfo ("%B: warning: larger common is here\n", obfd);
+ 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);
if (obfd != NULL)
- einfo ("%B: warning: smaller common is here\n", obfd);
+ einfo (_("%B: warning: smaller common is here\n"), obfd);
}
else
{
- einfo ("%B: warning: multiple common of `%T'\n", nbfd, name);
+ einfo (_("%B: warning: multiple common of `%T'\n"), nbfd, name);
if (obfd != NULL)
- einfo ("%B: warning: previous common is here\n", obfd);
+ einfo (_("%B: warning: previous common is here\n"), obfd);
}
}
- return true;
+ return TRUE;
}
/* This is called when BFD has discovered a set element. H is the
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_hash_entry *h;
- bfd_reloc_code_real_type reloc;
- bfd *abfd;
- asection *section;
- bfd_vma value;
+static bfd_boolean
+add_to_set (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;
+ return TRUE;
- ldctor_add_set_entry (h, reloc, section, value);
+ ldctor_add_set_entry (h, reloc, NULL, section, value);
if (h->type == bfd_link_hash_new)
{
ourselves. */
}
- return true;
+ return TRUE;
}
/* This is called when BFD has discovered a constructor. This is only
constructors in some more clever fashion. This is similar to
adding an element to a set, but less general. */
-static boolean
-constructor_callback (info, constructor, name, abfd, section, value)
- struct bfd_link_info *info;
- boolean constructor;
- const char *name;
- bfd *abfd;
- asection *section;
- bfd_vma value;
+static bfd_boolean
+constructor_callback (struct bfd_link_info *info,
+ bfd_boolean constructor,
+ const char *name,
+ bfd *abfd,
+ 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;
+ 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 (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"));
- 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);
+ 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);
- return true;
+ 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
+{
+ bfd_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;
- const char *warning;
+static bfd_boolean
+warning_callback (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const char *warning,
+ const char *symbol,
+ bfd *abfd,
+ asection *section,
+ bfd_vma address)
+{
+ /* 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%s\n", abfd, section, address, _("warning: "), warning);
+ else if (abfd == NULL)
+ einfo ("%P: %s%s\n", _("warning: "), warning);
+ else if (symbol == NULL)
+ einfo ("%B: %s%s\n", abfd, _("warning: "), warning);
+ else
+ {
+ struct warning_callback_info cinfo;
+
+ /* Look through the relocs to see if we can find a plausible
+ address. */
+
+ if (!bfd_generic_link_read_symbols (abfd))
+ einfo (_("%B%F: could not read symbols: %E\n"), abfd);
+
+ cinfo.found = FALSE;
+ cinfo.warning = warning;
+ cinfo.symbol = symbol;
+ cinfo.asymbols = bfd_get_outsymbols (abfd);
+ bfd_map_over_sections (abfd, warning_find_reloc, &cinfo);
+
+ if (! cinfo.found)
+ einfo ("%B: %s%s\n", abfd, _("warning: "), warning);
+ }
+
+ 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 (bfd *abfd, asection *sec, void *iarg)
{
- einfo ("%P: %s\n", warning);
- return true;
+ 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%s\n", abfd, sec, q->address, _("warning: "),
+ 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;
- const char *name;
- bfd *abfd;
- asection *section;
- bfd_vma address;
+static bfd_boolean
+undefined_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const char *name,
+ bfd *abfd,
+ asection *section,
+ bfd_vma address,
+ bfd_boolean error)
{
static char *error_name;
static unsigned int error_count;
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");
+ hash = (struct bfd_hash_table *)
+ xmalloc (sizeof (struct bfd_hash_table));
+ 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 (bfd_hash_lookup (hash, name, false, false) != NULL)
- return true;
+ 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");
+ 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
+ if (error_name != NULL
&& strcmp (name, error_name) == 0)
++error_count;
else
{
error_count = 0;
- if (error_name != (char *) NULL)
+ if (error_name != 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);
+ {
+ if (error)
+ einfo (_("%X%C: undefined reference to `%T'\n"),
+ abfd, section, address, name);
+ else
+ einfo (_("%C: warning: 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 (error)
+ einfo (_("%X%D: more undefined references to `%T' follow\n"),
+ abfd, section, address, name);
+ else
+ einfo (_("%D: warning: more undefined references to `%T' follow\n"),
+ abfd, section, address, name);
+ }
+ else if (error)
+ einfo ("%X");
}
else
{
if (error_count < MAX_ERRORS_IN_A_ROW)
- einfo ("%X%B: undefined reference to `%T'\n",
- abfd, name);
+ {
+ if (error)
+ einfo (_("%X%B: undefined reference to `%T'\n"),
+ abfd, name);
+ else
+ einfo (_("%B: warning: undefined reference to `%T'\n"),
+ abfd, name);
+ }
else if (error_count == MAX_ERRORS_IN_A_ROW)
- einfo ("%B: more undefined references to `%T' follow\n",
- abfd, name);
+ {
+ if (error)
+ einfo (_("%X%B: more undefined references to `%T' follow\n"),
+ abfd, name);
+ else
+ einfo (_("%B: warning: more undefined references to `%T' follow\n"),
+ abfd, name);
+ }
+ else if (error)
+ einfo ("%X");
}
- return true;
+ return TRUE;
}
+/* Counter to limit the number of relocation overflow error messages
+ to print. Errors are printed as it is decremented. When it's
+ called and the counter is zero, a final message is printed
+ indicating more relocations were omitted. When it gets to -1, no
+ such errors are printed. If it's initially set to a value less
+ than -1, all such errors will be printed (--verbose does this). */
+
+int overflow_cutoff_limit = 10;
+
/* 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;
- const char *name;
- const char *reloc_name;
- bfd_vma addend;
- bfd *abfd;
- asection *section;
- bfd_vma address;
+static bfd_boolean
+reloc_overflow (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_hash_entry *entry,
+ const char *name,
+ const char *reloc_name,
+ bfd_vma addend,
+ bfd *abfd,
+ asection *section,
+ bfd_vma address)
{
- if (abfd == (bfd *) NULL)
- einfo ("%P%X: generated");
+ if (overflow_cutoff_limit == -1)
+ return TRUE;
+
+ einfo ("%X%H:", abfd, section, address);
+
+ if (overflow_cutoff_limit >= 0
+ && overflow_cutoff_limit-- == 0)
+ {
+ einfo (_(" additional relocation overflows omitted from the output\n"));
+ return TRUE;
+ }
+
+ if (entry)
+ {
+ while (entry->type == bfd_link_hash_indirect
+ || entry->type == bfd_link_hash_warning)
+ entry = entry->u.i.link;
+ switch (entry->type)
+ {
+ case bfd_link_hash_undefined:
+ case bfd_link_hash_undefweak:
+ einfo (_(" relocation truncated to fit: %s against undefined symbol `%T'"),
+ reloc_name, entry->root.string);
+ break;
+ case bfd_link_hash_defined:
+ 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 == bfd_abs_section_ptr
+ ? link_info.output_bfd : entry->u.def.section->owner);
+ break;
+ default:
+ abort ();
+ break;
+ }
+ }
else
- einfo ("%X%C:", abfd, section, address);
- einfo (" relocation truncated to fit: %s %T", reloc_name, name);
+ einfo (_(" relocation truncated to fit: %s against `%T'"),
+ reloc_name, name);
if (addend != 0)
einfo ("+%v", addend);
einfo ("\n");
- return true;
+ return TRUE;
}
/* This is called when a dangerous relocation is made. */
-/*ARGSUSED*/
-static boolean
-reloc_dangerous (info, message, abfd, section, address)
- struct bfd_link_info *info;
- const char *message;
- bfd *abfd;
- asection *section;
- bfd_vma address;
+static bfd_boolean
+reloc_dangerous (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");
- else
- einfo ("%X%C:", abfd, section, address);
- einfo ("dangerous relocation: %s\n", message);
- return true;
+ einfo (_("%X%H: dangerous relocation: %s\n"),
+ abfd, section, address, 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;
- const char *name;
- bfd *abfd;
- asection *section;
- bfd_vma address;
+static bfd_boolean
+unattached_reloc (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");
- else
- einfo ("%X%C:", abfd, section, address);
- einfo (" reloc refers to symbol `%T' which is not being output\n", name);
- return true;
+ einfo (_("%X%H: reloc refers to symbol `%T' which is not being output\n"),
+ abfd, section, address, name);
+ return TRUE;
}
-/* This is called when a symbol in notice_hash is found. Symbols are
- put in notice_hash using the -y option. */
-
-/*ARGSUSED*/
-static boolean
-notice_ysym (info, name, abfd, section, value)
- struct bfd_link_info *info;
- const char *name;
- bfd *abfd;
- asection *section;
- bfd_vma value;
+/* 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, while notice_all is set if the --cref option
+ has been supplied, or if there are any NOCROSSREFS sections in the
+ linker script; and if plugins are active, since they need to monitor
+ all references from non-IR files. */
+
+static bfd_boolean
+notice (struct bfd_link_info *info,
+ struct bfd_link_hash_entry *h,
+ bfd *abfd,
+ asection *section,
+ bfd_vma value,
+ flagword flags ATTRIBUTE_UNUSED,
+ const char *string ATTRIBUTE_UNUSED)
{
- einfo ("%B: %s %s\n", abfd,
- bfd_is_und_section (section) ? "reference to" : "definition of",
- name);
- return true;
+ const char *name;
+
+ if (h == NULL)
+ {
+ if (command_line.cref || nocrossref_list != NULL)
+ return handle_asneeded_cref (abfd, (enum notice_asneeded_action) value);
+ return TRUE;
+ }
+
+ name = h->root.string;
+ if (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;
}