Update copyright dates.

[deliverable/binutils-gdb.git] / ld / ldemul.c

diff --git a/ld/ldemul.c b/ld/ldemul.c
index 10cb07c27d57d07f14241c5e833f93093f34ac85..c6ba73003d590b9810db306e8b07f0566e66dc7c 100644 (file)
--- a/ld/ldemul.c
+++ b/ld/ldemul.c
@@ -1,28 +1,27 @@
 /* ldemul.c -- clearing house for ld emulation states
    Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-   2001, 2002, 2003, 2005
+   2001, 2002, 2003, 2005, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
-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 "config.h"
-#include "bfd.h"
 #include "sysdep.h"
+#include "bfd.h"
 #include "getopt.h"
 #include "bfdlink.h"
 
@@ -88,8 +87,7 @@ ldemul_set_output_arch (void)
 void
 ldemul_finish (void)
 {
-  if (ld_emulation->finish)
-    ld_emulation->finish ();
+  ld_emulation->finish ();
 }
 
 void
@@ -121,12 +119,12 @@ ldemul_open_dynamic_archive (const char *arch, search_dirs_type *search,
   return FALSE;
 }
 
-bfd_boolean
-ldemul_place_orphan (lang_input_statement_type *file, asection *s)
+lang_output_section_statement_type *
+ldemul_place_orphan (asection *s, const char *name, int constraint)
 {
   if (ld_emulation->place_orphan)
-    return (*ld_emulation->place_orphan) (file, s);
-  return FALSE;
+    return (*ld_emulation->place_orphan) (s, name, constraint);
+  return NULL;
 }
 
 void
@@ -194,9 +192,35 @@ ldemul_default_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
   return ld_emulation->target_name;
 }
 
+/* If the entry point was not specified as an address, then add the
+   symbol as undefined.  This will cause ld to extract an archive
+   element defining the entry if ld is linking against such an archive.
+
+   We don't do this when generating shared libraries unless given -e
+   on the command line, because most shared libs are not designed to
+   be run as an executable.  However, some are, eg. glibc ld.so and
+   may rely on the default linker script supplying ENTRY.  So we can't
+   remove the ENTRY from the script, but would rather not insert
+   undefined _start syms.  */
+
 void
 after_parse_default (void)
 {
+  if (entry_symbol.name != NULL
+      && (link_info.executable || entry_from_cmdline))
+    {
+      bfd_boolean is_vma = FALSE;
+
+      if (entry_from_cmdline)
+       {
+         const char *send;
+
+         bfd_scan_vma (entry_symbol.name, &send, 0);
+         is_vma = *send == '\0';
+       }
+      if (!is_vma)
+       ldlang_add_undef (entry_symbol.name, entry_from_cmdline);
+    }
 }
 
 void
@@ -207,6 +231,7 @@ after_open_default (void)
 void
 after_allocation_default (void)
 {
+  lang_relax_sections (FALSE);
 }
 
 void
@@ -216,12 +241,22 @@ before_allocation_default (void)
     strip_excluded_output_sections ();
 }
 
+void
+finish_default (void)
+{
+  if (!link_info.relocatable)
+    _bfd_fix_excluded_sec_syms (link_info.output_bfd, &link_info);
+}
+
 void
 set_output_arch_default (void)
 {
   /* Set the output architecture and machine if possible.  */
-  bfd_set_arch_mach (output_bfd,
+  bfd_set_arch_mach (link_info.output_bfd,
                     ldfile_output_architecture, ldfile_output_machine);
+
+  bfd_emul_set_maxpagesize (output_target, config.maxpagesize);
+  bfd_emul_set_commonpagesize (output_target, config.commonpagesize);
 }
 
 void