/* Main program of GNU linker.
- Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002
- Free Software Foundation, Inc.
+ Copyright (C) 1991-2020 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, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, 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 "ctf-api.h"
#include "filenames.h"
#include "ld.h"
#include "ldwrite.h"
#include "ldexp.h"
#include "ldlang.h"
-#include "ldgram.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"
+#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>
-#ifdef HAVE_SBRK
-#ifdef NEED_DECLARATION_SBRK
-extern PTR sbrk ();
+#ifndef TARGET_SYSTEM_ROOT
+#define TARGET_SYSTEM_ROOT ""
#endif
-#endif
-
-int main PARAMS ((int, char **));
-
-static char *get_emulation PARAMS ((int, char **));
-static void set_scripts_dir PARAMS ((void));
/* 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;
-/* Set by -G argument, for MIPS ECOFF target. */
+/* The canonical representation of ld_sysroot. */
+char *ld_canon_sysroot;
+int ld_canon_sysroot_len;
+
+/* Set by -G argument, for targets like MIPS ELF. */
int g_switch_value = 8;
/* Nonzero means print names of input files as processed. */
-boolean trace_files;
+unsigned int trace_files;
-/* Nonzero means same, but note open failures, too. */
-boolean trace_file_tries;
+/* Nonzero means report actions taken by the linker, and describe the linker script in use. */
+bfd_boolean verbose;
/* Nonzero means version number was printed, so exit successfully
instead of complaining if no input files are given. */
-boolean version_printed;
-
-/* Nonzero means link in every member of an archive. */
-boolean whole_archive;
+bfd_boolean version_printed;
-/* True if we should demangle symbol names. */
-boolean demangling;
+/* TRUE if we should demangle symbol names. */
+bfd_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 *));
-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 *, 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, boolean));
-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 PARAMS ((struct bfd_link_info *, const char *,
- bfd *, asection *, bfd_vma));
-
-static struct bfd_link_callbacks link_callbacks = {
+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 void multiple_definition
+ (struct bfd_link_info *, struct bfd_link_hash_entry *,
+ bfd *, asection *, bfd_vma);
+static void multiple_common
+ (struct bfd_link_info *, struct bfd_link_hash_entry *,
+ bfd *, enum bfd_link_hash_type, bfd_vma);
+static void add_to_set
+ (struct bfd_link_info *, struct bfd_link_hash_entry *,
+ bfd_reloc_code_real_type, bfd *, asection *, bfd_vma);
+static void constructor_callback
+ (struct bfd_link_info *, bfd_boolean, const char *, bfd *,
+ asection *, bfd_vma);
+static void warning_callback
+ (struct bfd_link_info *, const char *, const char *, bfd *,
+ asection *, bfd_vma);
+static void warning_find_reloc
+ (bfd *, asection *, void *);
+static void undefined_symbol
+ (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma,
+ bfd_boolean);
+static void reloc_overflow
+ (struct bfd_link_info *, struct bfd_link_hash_entry *, const char *,
+ const char *, bfd_vma, bfd *, asection *, bfd_vma);
+static void reloc_dangerous
+ (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma);
+static void 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 *,
+ struct bfd_link_hash_entry *, bfd *, asection *, bfd_vma, flagword);
+
+static struct bfd_link_callbacks link_callbacks =
+{
add_archive_element,
multiple_definition,
multiple_common,
reloc_overflow,
reloc_dangerous,
unattached_reloc,
- notice
+ notice,
+ einfo,
+ info_msg,
+ minfo,
+ ldlang_override_segment_assignment,
+ ldlang_ctf_apply_strsym,
+ ldlang_write_ctf_late
};
+static bfd_assert_handler_type default_bfd_assert_handler;
+static bfd_error_handler_type default_bfd_error_handler;
+
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);
+}
+
+/* Hook to notice BFD assertions. */
+
+static void
+ld_bfd_assert_handler (const char *fmt, const char *bfdver,
+ const char *file, int line)
+{
+ config.make_executable = FALSE;
+ (*default_bfd_assert_handler) (fmt, bfdver, file, line);
+}
+
+/* Hook the bfd error/warning handler for --fatal-warnings. */
+
+static void
+ld_bfd_error_handler (const char *fmt, va_list ap)
+{
+ if (config.fatal_warnings)
+ config.make_executable = FALSE;
+ (*default_bfd_error_handler) (fmt, ap);
}
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
char *emulation;
long start_time = get_run_time ();
START_PROGRESS (program_name, 0);
- bfd_init ();
+ expandargv (&argc, &argv);
+
+ if (bfd_init () != BFD_INIT_MAGIC)
+ einfo (_("%F%P: fatal error: libbfd ABI mismatch\n"));
bfd_set_error_program_name (program_name);
- xatexit (remove_output);
+ /* We want to notice and fail on those nasty BFD assertions which are
+ likely to signal incorrect output being generated but otherwise may
+ leave no trace. */
+ default_bfd_assert_handler = bfd_set_assert_handler (ld_bfd_assert_handler);
+
+ /* Also hook the bfd error/warning handler for --fatal-warnings. */
+ default_bfd_error_handler = bfd_set_error_handler (ld_bfd_error_handler);
+
+ xatexit (ld_cleanup);
+
+ /* Set up the sysroot directory. */
+ ld_sysroot = get_sysroot (argc, argv);
+ if (*ld_sysroot)
+ ld_canon_sysroot = lrealpath (ld_sysroot);
+ if (ld_canon_sysroot)
+ {
+ ld_canon_sysroot_len = strlen (ld_canon_sysroot);
+
+ /* is_sysrooted_pathname() relies on no trailing dirsep. */
+ if (ld_canon_sysroot_len > 0
+ && IS_DIR_SEPARATOR (ld_canon_sysroot [ld_canon_sysroot_len - 1]))
+ ld_canon_sysroot [--ld_canon_sysroot_len] = '\0';
+ }
+ 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))
+ if (!bfd_set_default_target (TARGET))
{
einfo (_("%X%P: can't set BFD default target to `%s': %E\n"), TARGET);
xexit (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.build_constructors = TRUE;
+ config.rpath_separator = ':';
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;
+ config.make_executable = TRUE;
+ config.magic_demand_paged = TRUE;
+ config.text_read_only = TRUE;
+ config.print_map_discarded = TRUE;
+ link_info.disable_target_specific_optimizations = -1;
+
+ command_line.warn_mismatch = TRUE;
+ command_line.warn_search_mismatch = TRUE;
+ command_line.check_section_addresses = -1;
/* We initialize DEMANGLING based on the environment variable
COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the
interface by default. */
demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL;
+ link_info.allow_undefined_version = TRUE;
+ link_info.keep_memory = TRUE;
+ link_info.combreloc = TRUE;
+ link_info.strip_discarded = TRUE;
+ link_info.prohibit_multiple_definition_absolute = FALSE;
+ link_info.emit_hash = DEFAULT_EMIT_SYSV_HASH;
+ link_info.emit_gnu_hash = DEFAULT_EMIT_GNU_HASH;
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_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;
+ 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.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.combreloc = false;
+ link_info.relax_pass = 1;
+ link_info.extern_protected_data = -1;
+ link_info.dynamic_undefined_weak = -1;
+ link_info.pei386_auto_import = -1;
link_info.spare_dynamic_tags = 5;
+ link_info.path_separator = ':';
+#ifdef DEFAULT_FLAG_COMPRESS_DEBUG
+ link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
+#endif
+#ifdef DEFAULT_NEW_DTAGS
+ link_info.new_dtags = DEFAULT_NEW_DTAGS;
+#endif
ldfile_add_arch ("");
-
- config.make_executable = true;
- force_make_executable = false;
- config.magic_demand_paged = true;
- config.text_read_only = true;
-
emulation = get_emulation (argc, argv);
ldemul_choose_mode (emulation);
default_target = ldemul_choose_target (argc, argv);
lang_init ();
+ ldexp_init ();
ldemul_before_parse ();
- lang_has_input_file = false;
+ lang_has_input_file = FALSE;
parse_args (argc, argv);
- ldemul_set_symbols ();
+ if (config.hash_table_size != 0)
+ bfd_hash_set_default_size (config.hash_table_size);
- if (link_info.relocateable)
- {
- 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"));
- }
+#ifdef ENABLE_PLUGINS
+ /* Now all the plugin arguments have been gathered, we can load them. */
+ plugin_load_plugins ();
+#endif /* ENABLE_PLUGINS */
- 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"));
- }
+ ldemul_set_symbols ();
- /* 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)
+ /* 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_sec_merge)
- link_info.discard = discard_all;
+ ldfile_open_script_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 we have not already opened and parsed a linker script
read the emulation's appropriate default script. */
if (saved_script_handle == NULL)
{
int isfile;
- char *s = ldemul_get_script (& isfile);
+ char *s = ldemul_get_script (&isfile);
if (isfile)
- ldfile_open_command_file (s);
+ ldfile_open_default_command_file (s);
else
- {
+ {
lex_string = s;
- lex_redirect (s);
+ lex_redirect (s, _("built in linker script"), 1);
}
parser_input = input_script;
yyparse ();
lex_string = NULL;
}
- if (trace_file_tries)
+ if (verbose)
{
if (saved_script_handle)
info_msg (_("using external linker script:"));
{
static const int ld_bufsz = 8193;
size_t n;
- char *buf = xmalloc (ld_bufsz);
+ 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);
+ buf[n] = 0;
+ info_msg ("%s", buf);
}
rewind (saved_script_handle);
free (buf);
{
int isfile;
- info_msg (ldemul_get_script (& isfile));
+ info_msg (ldemul_get_script (&isfile));
}
-
+
info_msg ("\n==================================================\n");
}
+ if (command_line.force_group_allocation
+ || !bfd_link_relocatable (&link_info))
+ link_info.resolve_section_groups = TRUE;
+ else
+ link_info.resolve_section_groups = FALSE;
+
+ if (command_line.print_output_format)
+ info_msg ("%s\n", lang_get_output_target ());
+
lang_final ();
- if (lang_has_input_file == false)
+ /* If the only command line argument has been -v or --version or --verbose
+ then ignore any input files provided by linker scripts and exit now.
+ We do not want to create an output file when the linker is just invoked
+ to provide version information. */
+ if (argc == 2 && version_printed)
+ xexit (0);
+
+ if (link_info.inhibit_common_definition && !bfd_link_dll (&link_info))
+ einfo (_("%F%P: --no-define-common may not be used without -shared\n"));
+
+ 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 (_("%F%P: no input files\n"));
}
- if (trace_files)
- {
- info_msg (_("%P: mode %s\n"), emulation);
- }
+ if (verbose)
+ info_msg (_("%P: mode %s\n"), emulation);
ldemul_after_parse ();
if (config.map_file == (FILE *) NULL)
{
bfd_set_error (bfd_error_system_call);
- einfo (_("%P%F: cannot open map file %s: %E\n"),
+ einfo (_("%F%P: cannot open map file %s: %E\n"),
config.map_filename);
}
}
+ link_info.has_map_file = TRUE;
}
lang_process ();
/* Print error messages for any missing symbols, for any warning
symbols, and possibly multiple definitions. */
-
- if (link_info.relocateable)
- output_bfd->flags &= ~EXEC_P;
+ if (bfd_link_relocatable (&link_info))
+ link_info.output_bfd->flags &= ~EXEC_P;
else
- output_bfd->flags |= EXEC_P;
+ link_info.output_bfd->flags |= EXEC_P;
+
+ if ((link_info.compress_debug & COMPRESS_DEBUG))
+ {
+ link_info.output_bfd->flags |= BFD_COMPRESS;
+ if (link_info.compress_debug == COMPRESS_DEBUG_GABI_ZLIB)
+ link_info.output_bfd->flags |= BFD_COMPRESS_GABI;
+ }
ldwrite ();
output_cref (config.map_file != NULL ? config.map_file : stdout);
if (nocrossref_list != NULL)
check_nocrossrefs ();
+ if (command_line.print_memory_usage)
+ lang_print_memory_usage ();
+#if 0
+ {
+ struct bfd_link_hash_entry *h;
- /* 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?) */
+ h = bfd_link_hash_lookup (link_info.hash, "__image_base__", 0,0,1);
+ fprintf (stderr, "lookup = %p val %lx\n", h, h ? h->u.def.value : 1);
+ }
+#endif
+ ldexp_finish ();
+ lang_finish ();
- if (config.make_executable == false && force_make_executable == false)
+ /* 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 == true)
- {
- einfo (_("%P: link errors found, deleting executable `%s'\n"),
- output_filename);
- }
-
- /* The file will be removed by remove_output. */
+ if (verbose)
+ einfo (_("%P: link errors found, deleting executable `%s'\n"),
+ 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%P: %pB: 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.relocateable && command_line.force_exe_suffix)
+ if (!bfd_link_relocatable (&link_info)
+ && 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);
+ char *buf = (char *) xmalloc (bsize);
int l;
- char *dst_name = xmalloc (len + 5);
+ 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);
+ einfo (_("%F%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);
+ einfo (_("%F%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);
- }
+ einfo (_("%P: error writing file `%s'\n"), dst_name);
}
+
fclose (src);
if (fclose (dst) == EOF)
- {
- einfo (_("%P: Error closing file `%s'\n"), dst_name);
- }
+ einfo (_("%P: error closing file `%s'\n"), dst_name);
free (dst_name);
free (buf);
}
if (config.stats)
{
-#ifdef HAVE_SBRK
- char *lim = (char *) sbrk (0);
-#endif
long run_time = get_run_time () - start_time;
+ 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,
- (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 = NULL;
+
+ for (i = 1; i < argc; i++)
+ if (CONST_STRNEQ (argv[i], "--sysroot="))
+ path = argv[i] + strlen ("--sysroot=");
+
+ if (!path)
+ path = get_relative_sysroot (BINDIR);
+
+ if (!path)
+ path = get_relative_sysroot (TOOLBINDIR);
+
+ if (!path)
+ path = TARGET_SYSTEM_ROOT;
+
+ if (IS_DIR_SEPARATOR (*path) && path[1] == 0)
+ path = "";
+
+ return path;
+}
+
/* 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;
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 (_("%F%P: 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], "-mips5") == 0
|| strcmp (argv[i], "-mips32") == 0
+ || strcmp (argv[i], "-mips32r2") == 0
+ || strcmp (argv[i], "-mips32r6") == 0
|| strcmp (argv[i], "-mips64") == 0
- || strcmp (argv[i], "-mips4") == 0
- || strcmp (argv[i], "-mips5") == 0)
+ || strcmp (argv[i], "-mips64r2") == 0
+ || strcmp (argv[i], "-mips64r6") == 0)
{
/* FIXME: The arguments -mips1, -mips2, -mips3, etc. are
passed to the linker by some MIPS compilers. They
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;
-{
- 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);
-
- res = stat (buf, &s) == 0 && S_ISDIR (s.st_mode);
- free (buf);
- if (res)
- ldfile_add_library_path (dir, false);
- return res;
-}
-
-/* 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) */
-
-static void
-set_scripts_dir ()
+void
+add_ysym (const char *name)
{
- char *end, *dir;
- size_t dirlen;
-
- if (check_for_scripts_dir (SCRIPTDIR))
- /* 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)
+ if (link_info.notice_hash == NULL)
{
- /* Don't look for ldscripts in the current directory. There is
- too much potential for confusion. */
- return;
+ 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 (_("%F%P: bfd_hash_table_init failed: %E\n"));
}
- 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))
- /* 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;
-
- /* Well, we tried. */
- free (dir);
+ if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL)
+ einfo (_("%F%P: bfd_hash_lookup failed: %E\n"));
}
void
-add_ysym (name)
- const char *name;
+add_ignoresym (struct bfd_link_info *info, const char *name)
{
- if (link_info.notice_hash == (struct bfd_hash_table *) NULL)
+ if (info->ignore_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,
- 61))
- einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
+ info->ignore_hash = xmalloc (sizeof (struct bfd_hash_table));
+ if (!bfd_hash_table_init_n (info->ignore_hash,
+ bfd_hash_newfunc,
+ sizeof (struct bfd_hash_entry),
+ 61))
+ einfo (_("%F%P: 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 (info->ignore_hash, name, TRUE, TRUE) == NULL)
+ einfo (_("%F%P: bfd_hash_lookup failed: %E\n"));
}
/* Record a symbol to be wrapped, from the --wrap option. */
void
-add_wrap (name)
- const char *name;
+add_wrap (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"));
+ 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 (_("%F%P: 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"));
+
+ if (bfd_hash_lookup (link_info.wrap_hash, name, TRUE, TRUE) == NULL)
+ einfo (_("%F%P: 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;
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\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 (_("%F%P: bfd_hash_table_init failed: %E\n"));
bufsize = 100;
buf = (char *) xmalloc (bufsize);
{
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\n"));
+ if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL)
+ einfo (_("%F%P: bfd_hash_lookup for insertion failed: %E\n"));
}
}
if (link_info.strip != strip_none)
einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n"));
+ free (buf);
link_info.strip = strip_some;
+ fclose (file);
}
\f
/* Callbacks from the BFD linker routines. */
/* This is called when BFD has decided to include an archive member in
a link. */
-static boolean
-add_archive_element (info, abfd, name)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- 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 *parent;
+ lang_input_statement_type orig_input;
- input = ((lang_input_statement_type *)
- xmalloc (sizeof (lang_input_statement_type)));
+ input = (lang_input_statement_type *)
+ xcalloc (1, sizeof (lang_input_statement_type));
+ input->header.type = lang_input_statement_enum;
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. This bit of code is
- from the old decode_library_subfile function. I don't know
- whether any of those fields matters. */
+
+ parent = bfd_usrdata (abfd->my_archive);
+ if (parent != NULL && !parent->flags.reload)
+ parent->next = input;
+
+ /* 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 (link_info.lto_plugin_active)
+ {
+ /* We must offer this archive member to the plugins to claim. */
+ plugin_maybe_claim (input);
+ if (input->flags.claimed)
+ {
+ if (no_more_claiming)
+ {
+ /* Don't claim new IR symbols after all IR symbols have
+ been claimed. */
+ if (verbose)
+ info_msg ("%pI: no new IR symbols to claimi\n",
+ &orig_input);
+ input->flags.claimed = 0;
+ return FALSE;
+ }
+ input->flags.claim_archive = TRUE;
+ *subsbfd = input->the_bfd;
+ }
+ }
+#endif /* ENABLE_PLUGINS */
ldlang_add_file (input);
- if (config.map_file != (FILE *) NULL)
+ if (config.map_file != NULL)
{
- static boolean header_printed;
+ static bfd_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);
+ h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
+ if (h == NULL
+ && info->pei386_auto_import
+ && CONST_STRNEQ (name, "__imp_"))
+ h = bfd_link_hash_lookup (info->hash, name + 6, FALSE, FALSE, TRUE);
if (h == NULL)
from = NULL;
}
}
- if (! header_printed)
+ if (!header_printed)
{
- char buf[100];
-
- sprintf (buf, _("Archive member included because of file (symbol)\n\n"));
- minfo ("%s", buf);
- header_printed = true;
+ minfo (_("Archive member included to satisfy reference by file (symbol)\n\n"));
+ header_printed = TRUE;
}
- if (bfd_my_archive (abfd) == NULL)
+ if (abfd->my_archive == NULL
+ || bfd_is_thin_archive (abfd->my_archive))
{
minfo ("%s", bfd_get_filename (abfd));
len = strlen (bfd_get_filename (abfd));
}
else
{
- minfo ("%s(%s)", bfd_get_filename (bfd_my_archive (abfd)),
+ minfo ("%s(%s)", bfd_get_filename (abfd->my_archive),
bfd_get_filename (abfd));
- len = (strlen (bfd_get_filename (bfd_my_archive (abfd)))
+ len = (strlen (bfd_get_filename (abfd->my_archive))
+ strlen (bfd_get_filename (abfd))
+ 2);
}
}
if (from != NULL)
- minfo ("%B ", from);
+ minfo ("%pB ", from);
if (h != NULL)
- minfo ("(%T)\n", h->root.string);
+ minfo ("(%pT)\n", h->root.string);
else
minfo ("(%s)\n", name);
}
- if (trace_files || trace_file_tries)
- info_msg ("%I\n", input);
-
- return true;
+ if (verbose
+ || trace_files > 1
+ || (trace_files && bfd_is_thin_archive (orig_input.the_bfd->my_archive)))
+ info_msg ("%pI\n", &orig_input);
+ return TRUE;
}
/* This is called when BFD has discovered a symbol which is defined
multiple times. */
-static boolean
-multiple_definition (info, name, obfd, osec, oval, nbfd, nsec, nval)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- const char *name;
- bfd *obfd;
- asection *osec;
- bfd_vma oval;
- bfd *nbfd;
- asection *nsec;
- bfd_vma nval;
+static void
+multiple_definition (struct bfd_link_info *info,
+ struct bfd_link_hash_entry *h,
+ bfd *nbfd,
+ asection *nsec,
+ bfd_vma nval)
{
+ const char *name;
+ bfd *obfd;
+ asection *osec;
+ bfd_vma oval;
+
+ if (info->allow_multiple_definition)
+ return;
+
+ 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;
+
/* 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);
+ if (!info->prohibit_multiple_definition_absolute
+ && ((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;
- if (command_line.relax)
+ name = h->root.string;
+ if (nbfd == NULL)
{
- einfo (_("%P: Disabling relaxation: it will not work with multiple definitions\n"));
- command_line.relax = 0;
+ nbfd = obfd;
+ nsec = osec;
+ nval = oval;
+ obfd = NULL;
}
+ einfo (_("%X%P: %C: multiple definition of `%pT'"),
+ nbfd, nsec, nval, name);
+ if (obfd != NULL)
+ einfo (_("; %D: first defined here"), obfd, osec, oval);
+ einfo ("\n");
- return true;
+ if (RELAXATION_ENABLED_BY_USER)
+ {
+ einfo (_("%P: disabling relaxation; it will not work with multiple definitions\n"));
+ DISABLE_RELAXATION;
+ }
}
/* 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. */
-static boolean
-multiple_common (info, name, obfd, otype, osize, nbfd, ntype, nsize)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- 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 void
+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;
+
+ 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"),
- nbfd, name);
if (obfd != NULL)
- einfo (_("%B: warning: common is here\n"), obfd);
+ einfo (_("%P: %pB: warning: definition of `%pT' overriding common"
+ " from %pB\n"),
+ nbfd, name, obfd);
+ else
+ einfo (_("%P: %pB: warning: definition of `%pT' overriding common\n"),
+ nbfd, name);
}
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"),
- nbfd, name);
if (obfd != NULL)
- einfo (_("%B: warning: defined here\n"), obfd);
+ einfo (_("%P: %pB: warning: common of `%pT' overridden by definition"
+ " from %pB\n"),
+ nbfd, name, obfd);
+ else
+ einfo (_("%P: %pB: warning: common of `%pT' overridden by definition\n"),
+ nbfd, name);
}
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"),
- nbfd, name);
if (obfd != NULL)
- einfo (_("%B: warning: larger common is here\n"), obfd);
+ einfo (_("%P: %pB: warning: common of `%pT' overridden"
+ " by larger common from %pB\n"),
+ nbfd, name, obfd);
+ else
+ einfo (_("%P: %pB: warning: common of `%pT' overridden"
+ " by larger common\n"),
+ nbfd, name);
}
else if (nsize > osize)
{
- 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 (_("%P: %pB: warning: common of `%pT' overriding"
+ " smaller common from %pB\n"),
+ nbfd, name, obfd);
+ else
+ einfo (_("%P: %pB: warning: common of `%pT' overriding"
+ " smaller common\n"),
+ nbfd, name);
}
else
{
- einfo (_("%B: warning: multiple common of `%T'\n"), nbfd, name);
if (obfd != NULL)
- einfo (_("%B: warning: previous common is here\n"), obfd);
+ einfo (_("%P: %pB and %pB: warning: multiple common of `%pT'\n"),
+ nbfd, obfd, name);
+ else
+ einfo (_("%P: %pB: warning: multiple common of `%pT'\n"),
+ nbfd, name);
}
}
-
- 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. */
-static boolean
-add_to_set (info, h, reloc, abfd, section, value)
- 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;
+static void
+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;
+ if (!config.build_constructors)
+ return;
- ldctor_add_set_entry (h, reloc, (const char *) NULL, section, value);
+ ldctor_add_set_entry (h, reloc, NULL, section, value);
if (h->type == bfd_link_hash_new)
{
undefined symbols because we are going to define it
ourselves. */
}
-
- 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 void
+constructor_callback (struct bfd_link_info *info,
+ bfd_boolean constructor,
+ const char *name,
+ bfd *abfd,
+ asection *section,
+ bfd_vma value)
{
char *s;
struct bfd_link_hash_entry *h;
if (config.warn_constructors)
einfo (_("%P: warning: global constructor %s used\n"), name);
- if (! config.build_constructors)
- return true;
+ if (!config.build_constructors)
+ return;
/* Ensure that BFD_RELOC_CTOR exists now, so that we can give a
useful error message. */
- if (bfd_reloc_type_lookup (output_bfd, BFD_RELOC_CTOR) == NULL
- && (link_info.relocateable
+ if (bfd_reloc_type_lookup (info->output_bfd, BFD_RELOC_CTOR) == NULL
+ && (bfd_link_relocatable (info)
|| bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL))
- einfo (_("%P%F: BFD backend error: BFD_RELOC_CTOR unsupported\n"));
+ einfo (_("%F%P: BFD backend error: BFD_RELOC_CTOR unsupported\n"));
s = set_name;
if (bfd_get_symbol_leading_char (abfd) != '\0')
else
strcpy (s, "__DTOR_LIST__");
- 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\n"));
+ einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n"));
if (h->type == bfd_link_hash_new)
{
h->type = bfd_link_hash_undefined;
}
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;
+struct warning_callback_info
+{
+ bfd_boolean found;
const char *warning;
const char *symbol;
asymbol **asymbols;
};
+/* Look through the relocs to see if we can find a plausible address
+ for SYMBOL in ABFD. Return TRUE if found. Otherwise return FALSE. */
+
+static bfd_boolean
+symbol_warning (const char *warning, const char *symbol, bfd *abfd)
+{
+ struct warning_callback_info cinfo;
+
+ if (!bfd_generic_link_read_symbols (abfd))
+ einfo (_("%F%P: %pB: 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);
+ return cinfo.found;
+}
+
/* This is called when there is a reference to a warning symbol. */
-static boolean
-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;
+static void
+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
+ if (!config.warn_multiple_gp
&& strcmp (warning, "using multiple gp values") == 0)
- return true;
+ return;
if (section != NULL)
- einfo ("%C: %s\n", abfd, section, address, warning);
+ einfo ("%P: %C: %s%s\n", abfd, section, address, _("warning: "), warning);
else if (abfd == NULL)
- einfo ("%P: %s\n", warning);
+ einfo ("%P: %s%s\n", _("warning: "), warning);
else if (symbol == NULL)
- einfo ("%B: %s\n", abfd, warning);
- else
+ einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning);
+ else if (!symbol_warning (warning, symbol, abfd))
{
- 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);
+ bfd *b;
+ /* Search all input files for a reference to SYMBOL. */
+ for (b = info->input_bfds; b; b = b->link.next)
+ if (b != abfd && symbol_warning (warning, symbol, b))
+ return;
+ einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning);
}
-
- return true;
}
/* This is called by warning_callback for each section. It checks the
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;
+warning_find_reloc (bfd *abfd, asection *sec, void *iarg)
{
struct warning_callback_info *info = (struct warning_callback_info *) iarg;
long relsize;
relsize = bfd_get_reloc_upper_bound (abfd, sec);
if (relsize < 0)
- einfo (_("%B%F: could not read relocs: %E\n"), abfd);
+ einfo (_("%F%P: %pB: 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);
+ einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd);
p = relpp;
pend = p + relcount;
&& 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;
+ einfo ("%P: %C: %s%s\n", abfd, sec, q->address, _("warning: "),
+ info->warning);
+ info->found = TRUE;
break;
}
}
/* This is called when an undefined symbol is found. */
-static boolean
-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 void
+undefined_symbol (struct bfd_link_info *info,
+ const char *name,
+ bfd *abfd,
+ asection *section,
+ bfd_vma address,
+ bfd_boolean error)
{
static char *error_name;
static unsigned int error_count;
#define MAX_ERRORS_IN_A_ROW 5
+ if (info->ignore_hash != NULL
+ && bfd_hash_lookup (info->ignore_hash, name, FALSE, FALSE) != NULL)
+ return;
+
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"));
+ add_ignoresym (info, name);
}
/* 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 = xstrdup (name);
}
{
if (error_count < MAX_ERRORS_IN_A_ROW)
{
- einfo (_("%C: undefined reference to `%T'\n"),
- abfd, section, address, name);
- if (fatal)
- einfo ("%X");
+ if (error)
+ einfo (_("%X%P: %C: undefined reference to `%pT'\n"),
+ abfd, section, address, name);
+ else
+ einfo (_("%P: %C: warning: undefined reference to `%pT'\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%P: %D: more undefined references to `%pT' follow\n"),
+ abfd, section, address, name);
+ else
+ einfo (_("%P: %D: warning: more undefined references to `%pT' follow\n"),
+ abfd, section, address, name);
+ }
+ else if (error)
+ einfo ("%X");
}
else
{
if (error_count < MAX_ERRORS_IN_A_ROW)
{
- einfo (_("%B: undefined reference to `%T'\n"),
- abfd, name);
- if (fatal)
- einfo ("%X");
+ if (error)
+ einfo (_("%X%P: %pB: undefined reference to `%pT'\n"),
+ abfd, name);
+ else
+ einfo (_("%P: %pB: warning: undefined reference to `%pT'\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%P: %pB: more undefined references to `%pT' follow\n"),
+ abfd, name);
+ else
+ einfo (_("%P: %pB: warning: more undefined references to `%pT' follow\n"),
+ abfd, name);
+ }
+ else if (error)
+ einfo ("%X");
}
-
- 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. */
-static boolean
-reloc_overflow (info, name, reloc_name, addend, abfd, section, address)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- const char *name;
- const char *reloc_name;
- bfd_vma addend;
- bfd *abfd;
- asection *section;
- bfd_vma address;
+static void
+reloc_overflow (struct bfd_link_info *info,
+ 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;
+
+ 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;
+ }
+
+ 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 `%pT'"),
+ reloc_name, entry->root.string);
+ break;
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ einfo (_(" relocation truncated to fit: "
+ "%s against symbol `%pT' defined in %pA section in %pB"),
+ reloc_name, entry->root.string,
+ entry->u.def.section,
+ entry->u.def.section == bfd_abs_section_ptr
+ ? 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 `%pT'"),
+ reloc_name, name);
if (addend != 0)
einfo ("+%v", addend);
einfo ("\n");
- return true;
}
/* This is called when a dangerous relocation is made. */
-static boolean
-reloc_dangerous (info, message, abfd, section, address)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- const char *message;
- bfd *abfd;
- asection *section;
- bfd_vma address;
+static void
+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);
}
/* This is called when a reloc is being generated attached to a symbol
that is not being output. */
-static boolean
-unattached_reloc (info, name, abfd, section, address)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- const char *name;
- bfd *abfd;
- asection *section;
- bfd_vma address;
+static void
+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 `%pT' which is not being output\n"),
+ abfd, section, address, name);
}
/* 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. */
-
-static boolean
-notice (info, name, abfd, section, value)
- struct bfd_link_info *info;
- const char *name;
- bfd *abfd;
- asection *section;
- bfd_vma value;
+ 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,
+ struct bfd_link_hash_entry *inh ATTRIBUTE_UNUSED,
+ bfd *abfd,
+ asection *section,
+ bfd_vma value,
+ flagword flags ATTRIBUTE_UNUSED)
{
- if (! info->notice_all
- || (info->notice_hash != NULL
- && bfd_hash_lookup (info->notice_hash, name, false, false) != NULL))
+ 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);
+ einfo (_("%P: %pB: reference to %s\n"), abfd, name);
else
- einfo ("%B: definition of %s\n", abfd, name);
+ einfo (_("%P: %pB: definition of %s\n"), abfd, name);
}
if (command_line.cref || nocrossref_list != NULL)
add_cref (name, abfd, section, value);
- return true;
+ return TRUE;
}
projects / deliverable / binutils-gdb.git / blobdiff