/* Main program of GNU linker.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
/* Nonzero means print names of input files as processed. */
bfd_boolean trace_files;
-/* Nonzero means same, but note open failures, too. */
-bfd_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. */
bfd_boolean version_printed;
-/* Nonzero means link in every member of an 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;
ldlang_override_segment_assignment
};
+static bfd_assert_handler_type default_bfd_assert_handler;
+
struct bfd_link_info link_info;
\f
static void
unlink_if_ordinary (output_filename);
}
+/* If there's a BFD assertion, we'll notice and exit with an error
+ unless otherwise instructed. */
+
+static void
+ld_bfd_assert_handler (const char *fmt, const char *bfdver,
+ const char *file, int line)
+{
+ (*default_bfd_assert_handler) (fmt, bfdver, file, line);
+ config.make_executable = FALSE;
+}
+
int
main (int argc, char **argv)
{
char *emulation;
long start_time = get_run_time ();
+#ifdef HAVE_SBRK
+ char *start_sbrk = (char *) sbrk (0);
+#endif
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
bfd_set_error_program_name (program_name);
+ /* 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);
+
xatexit (ld_cleanup);
/* Set up the sysroot directory. */
config.make_executable = TRUE;
config.magic_demand_paged = TRUE;
config.text_read_only = 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;
- 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
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:"));
program_name, run_time / 1000000, run_time % 1000000);
#ifdef HAVE_SBRK
fprintf (stderr, _("%s: data size %ld\n"), program_name,
- (long) (lim - (char *) &environ));
+ (long) (lim - start_sbrk));
#endif
fflush (stderr);
}
einfo (_("%P%F: bfd_hash_lookup failed: %E\n"));
}
+void
+add_ignoresym (struct bfd_link_info *info, const char *name)
+{
+ if (info->ignore_hash == NULL)
+ {
+ 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 (_("%P%F: bfd_hash_table_init failed: %E\n"));
+ }
+
+ if (bfd_hash_lookup (info->ignore_hash, name, TRUE, TRUE) == NULL)
+ einfo (_("%P%F: bfd_hash_lookup failed: %E\n"));
+}
+
/* Record a symbol to be wrapped, from the --wrap option. */
void
file.filesize = arelt_size (abfd);
file.fd = fd;
plugin_maybe_claim (&file, input);
- if (input->claimed)
+ if (input->flags.claimed)
{
- input->claim_archive = TRUE;
+ input->flags.claim_archive = TRUE;
*subsbfd = input->the_bfd;
}
}
minfo ("(%s)\n", name);
}
- if (trace_files || trace_file_tries)
+ if (trace_files || verbose)
info_msg ("%I\n", &orig_input);
return TRUE;
}
if (RELAXATION_ENABLED)
{
einfo (_("%P: Disabling relaxation: it will not work with multiple definitions\n"));
- command_line.disable_target_specific_optimizations = -1;
+ link_info.disable_target_specific_optimizations = -1;
}
return TRUE;
/* Ensure that BFD_RELOC_CTOR exists now, so that we can give a
useful error message. */
- if (bfd_reloc_type_lookup (link_info.output_bfd, BFD_RELOC_CTOR) == NULL
+ if (bfd_reloc_type_lookup (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"));
/* This is called when an undefined symbol is found. */
static bfd_boolean
-undefined_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+undefined_symbol (struct bfd_link_info *info,
const char *name,
bfd *abfd,
asection *section,
#define MAX_ERRORS_IN_A_ROW 5
+ if (info->ignore_hash != NULL
+ && bfd_hash_lookup (info->ignore_hash, name, FALSE, FALSE) != NULL)
+ return TRUE;
+
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,
- 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, 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
/* This is called when a reloc overflows. */
static bfd_boolean
-reloc_overflow (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+reloc_overflow (struct bfd_link_info *info,
struct bfd_link_hash_entry *entry,
const char *name,
const char *reloc_name,
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);
+ ? info->output_bfd : entry->u.def.section->owner);
break;
default:
abort ();
projects / deliverable / binutils-gdb.git / blobdiff