From 098abe2f2a811863cbfd595527d870b418ea0955 Mon Sep 17 00:00:00 2001
From: "David E. O'Brien" <obrien@FreeBSD.org>
Date: Tue, 26 Jun 2001 17:57:37 +0000
Subject: [PATCH] Merge rev 1.2 (teach `ld' how to access FreeBSD's ld ELF
 hints) into Binutils 2.11.2.

---
 contrib/binutils/ld/emultempl/elf32.em | 63 +++++++++++---------------
 1 file changed, 27 insertions(+), 36 deletions(-)

diff --git a/contrib/binutils/ld/emultempl/elf32.em b/contrib/binutils/ld/emultempl/elf32.em
index 79aa1c25bbf8..da7c4356f1e3 100644
--- a/contrib/binutils/ld/emultempl/elf32.em
+++ b/contrib/binutils/ld/emultempl/elf32.em
@@ -10,7 +10,7 @@ cat >e${EMULATION_NAME}.c <<EOF
 /* This file is is generated by a shell script.  DO NOT EDIT! */
 
 /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME}
-   Copyright (C) 1991, 93, 94, 95, 96, 97, 98, 99, 2000, 2001
+   Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
    Free Software Foundation, Inc.
    Written by Steve Chamberlain <sac@cygnus.com>
    ELF support by Ian Lance Taylor <ian@cygnus.com>
@@ -35,6 +35,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #include "bfd.h"
 #include "sysdep.h"
+#include "libiberty.h"
 
 #include <ctype.h>
 
@@ -133,7 +134,7 @@ static void
 gld${EMULATION_NAME}_vercheck (s)
      lang_input_statement_type *s;
 {
-  const char *soname, *f;
+  const char *soname;
   struct bfd_link_needed_list *l;
 
   if (global_vercheck_failed)
@@ -144,19 +145,13 @@ gld${EMULATION_NAME}_vercheck (s)
 
   soname = bfd_elf_get_dt_soname (s->the_bfd);
   if (soname == NULL)
-    soname = bfd_get_filename (s->the_bfd);
-
-  f = strrchr (soname, '/');
-  if (f != NULL)
-    ++f;
-  else
-    f = soname;
+    soname = basename (bfd_get_filename (s->the_bfd));
 
   for (l = global_vercheck_needed; l != NULL; l = l->next)
     {
       const char *suffix;
 
-      if (strcmp (f, l->name) == 0)
+      if (strcmp (soname, l->name) == 0)
 	{
 	  /* Probably can't happen, but it's an easy check.  */
 	  continue;
@@ -171,7 +166,7 @@ gld${EMULATION_NAME}_vercheck (s)
 
       suffix += sizeof ".so." - 1;
 
-      if (strncmp (f, l->name, suffix - l->name) == 0)
+      if (strncmp (soname, l->name, suffix - l->name) == 0)
 	{
 	  /* Here we know that S is a dynamic object FOO.SO.VER1, and
              the object we are considering needs a dynamic object
@@ -195,7 +190,6 @@ gld${EMULATION_NAME}_stat_needed (s)
   struct stat st;
   const char *suffix;
   const char *soname;
-  const char *f;
 
   if (global_found)
     return;
@@ -233,17 +227,12 @@ gld${EMULATION_NAME}_stat_needed (s)
 
   soname = bfd_elf_get_dt_soname (s->the_bfd);
   if (soname == NULL)
-    soname = s->filename;
+    soname = basename (s->filename);
 
-  f = strrchr (soname, '/');
-  if (f != NULL)
-    ++f;
-  else
-    f = soname;
-
-  if (strncmp (f, global_needed->name, suffix - global_needed->name) == 0)
+  if (strncmp (soname, global_needed->name,
+	       suffix - global_needed->name) == 0)
     einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
-	   global_needed->name, global_needed->by, f);
+	   global_needed->name, global_needed->by, soname);
 }
 
 
@@ -343,11 +332,7 @@ cat >>e${EMULATION_NAME}.c <<EOF
     einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
 
   /* First strip off everything before the last '/'.  */
-  soname = strrchr (abfd->filename, '/');
-  if (soname)
-    soname++;
-  else
-    soname = abfd->filename;
+  soname = basename (abfd->filename);
 
   if (trace_file_tries)
     info_msg (_("found %s at %s\n"), soname, name);
@@ -1020,20 +1005,13 @@ gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
   if (bfd_check_format (entry->the_bfd, bfd_object)
       && (entry->the_bfd->flags & DYNAMIC) != 0)
     {
-      char *needed_name;
-
       ASSERT (entry->is_archive && entry->search_dirs_flag);
 
       /* Rather than duplicating the logic above.  Just use the
-	 filename we recorded earlier.
+	 filename we recorded earlier.  */
 
-	 First strip off everything before the last '/'.  */
-      filename = strrchr (entry->filename, '/');
-      filename++;
-
-      needed_name = (char *) xmalloc (strlen (filename) + 1);
-      strcpy (needed_name, filename);
-      bfd_elf_set_dt_needed_name (entry->the_bfd, needed_name);
+      filename = xstrdup (basename (entry->filename));
+      bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
     }
 
   return true;
@@ -1408,6 +1386,7 @@ cat >>e${EMULATION_NAME}.c <<EOF
 
 #define OPTION_DISABLE_NEW_DTAGS	(400)
 #define OPTION_ENABLE_NEW_DTAGS		(OPTION_DISABLE_NEW_DTAGS + 1)
+#define OPTION_GROUP			(OPTION_ENABLE_NEW_DTAGS + 1)
 
 static struct option longopts[] =
 {
@@ -1421,6 +1400,8 @@ cat >>e${EMULATION_NAME}.c <<EOF
   {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
   {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
   {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
+  {"Bgroup", no_argument, NULL, OPTION_GROUP},
+  {"Bgroup", no_argument, NULL, OPTION_GROUP},
 EOF
 fi
 
@@ -1479,6 +1460,12 @@ cat >>e${EMULATION_NAME}.c <<EOF
       link_info.new_dtags = true;
       break;
 
+    case OPTION_GROUP:
+      link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
+      /* Groups must be self-contained.  */
+      link_info.no_undefined = true;
+      break;
+
     case 'z':
       if (strcmp (optarg, "initfirst") == 0)
 	link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
@@ -1504,6 +1491,8 @@ cat >>e${EMULATION_NAME}.c <<EOF
 	  link_info.flags |= (bfd_vma) DF_ORIGIN;
 	  link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
 	}
+      else if (strcmp (optarg, "defs") == 0)
+	link_info.no_undefined = true;
       /* What about the other Solaris -z options? FIXME.  */
       break;
 EOF
@@ -1537,8 +1526,10 @@ EOF
 
 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 cat >>e${EMULATION_NAME}.c <<EOF
+  fprintf (file, _("  -Bgroup\t\tSelects group name lookup rules for DSO\n"));
   fprintf (file, _("  --disable-new-dtags\tDisable new dynamic tags\n"));
   fprintf (file, _("  --enable-new-dtags\tEnable new dynamic tags\n"));
+  fprintf (file, _("  -z defs\t\tDisallows undefined symbols\n"));
   fprintf (file, _("  -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
   fprintf (file, _("  -z interpose\t\tMark object to interpose all DSOs but executable\n"));
   fprintf (file, _("  -z loadfltr\t\tMark object requiring immediate process\n"));