* tui/tui-file.c:

[deliverable/binutils-gdb.git] / ld / emultempl / ppc32elf.em

diff --git a/ld/emultempl/ppc32elf.em b/ld/emultempl/ppc32elf.em
index 46145932c3dacd902fca56303e5f249ad625934d..10f91074dfecbc4e192d2c89b41d8de5a0184c5e 100644 (file)
--- a/ld/emultempl/ppc32elf.em
+++ b/ld/emultempl/ppc32elf.em
@@ -1,5 +1,5 @@
 # This shell script emits a C file. -*- C -*-
-#   Copyright 2003 Free Software Foundation, Inc.
+#   Copyright 2003, 2005 Free Software Foundation, Inc.
 #
 # This file is part of GLD, the Gnu Linker.
 #
@@ -15,10 +15,10 @@
 #
 # 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
 #
 
-# This file is sourced from elf32.em, and defines extra powerpc64-elf
+# This file is sourced from elf32.em, and defines extra powerpc32-elf
 # specific routines.
 #
 cat >>e${EMULATION_NAME}.c <<EOF
@@ -26,17 +26,89 @@ cat >>e${EMULATION_NAME}.c <<EOF
 #include "libbfd.h"
 #include "elf32-ppc.h"
 
+extern const bfd_target bfd_elf32_powerpc_vec;
+extern const bfd_target bfd_elf32_powerpcle_vec;
+extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
+
+static inline int
+is_ppc_elf32_vec(const bfd_target * vec)
+{
+  return (vec == &bfd_elf32_powerpc_vec
+         || vec == &bfd_elf32_powerpc_vxworks_vec
+         || vec == &bfd_elf32_powerpcle_vec);
+}
+
 /* Whether to run tls optimization.  */
 static int notlsopt = 0;
 
+/* Whether to emit symbols for stubs.  */
+static int emit_stub_syms = 0;
+
+/* Chooses the correct place for .plt and .got.  */
+static int old_plt = 0;
+static int old_got = 0;
+
 static void
-ppc_before_allocation (void)
+ppc_after_open (void)
 {
-  extern const bfd_target bfd_elf32_powerpc_vec;
-  extern const bfd_target bfd_elf32_powerpcle_vec;
+  if (is_ppc_elf32_vec (link_info.hash->creator))
+    {
+      int new_plt;
+      int keep_new;
+      unsigned int num_plt;
+      unsigned int num_got;
+      lang_output_section_statement_type *os;
+      lang_output_section_statement_type *plt_os[2];
+      lang_output_section_statement_type *got_os[2];
+
+      emit_stub_syms |= link_info.emitrelocations;
+      new_plt = ppc_elf_select_plt_layout (output_bfd, &link_info, old_plt,
+                                          emit_stub_syms);
+      if (new_plt < 0)
+       einfo ("%X%P: select_plt_layout problem %E\n");
 
-  if (link_info.hash->creator == &bfd_elf32_powerpc_vec
-      || link_info.hash->creator == &bfd_elf32_powerpcle_vec)
+      num_got = 0;
+      num_plt = 0;
+      for (os = &lang_output_section_statement.head->output_section_statement;
+          os != NULL;
+          os = os->next)
+       {
+         if (os->constraint == SPECIAL && strcmp (os->name, ".plt") == 0)
+           {
+             if (num_plt < 2)
+               plt_os[num_plt] = os;
+             ++num_plt;
+           }
+         if (os->constraint == SPECIAL && strcmp (os->name, ".got") == 0)
+           {
+             if (num_got < 2)
+               got_os[num_got] = os;
+             ++num_got;
+           }
+       }
+
+      keep_new = new_plt == 1 ? 0 : -1;
+      if (num_plt == 2)
+       {
+         plt_os[0]->constraint = keep_new;
+         plt_os[1]->constraint = ~keep_new;
+       }
+      if (num_got == 2)
+       {
+         if (old_got)
+           keep_new = -1;
+         got_os[0]->constraint = keep_new;
+         got_os[1]->constraint = ~keep_new;
+       }
+    }
+
+  gld${EMULATION_NAME}_after_open ();
+}
+
+static void
+ppc_before_allocation (void)
+{
+  if (is_ppc_elf32_vec (link_info.hash->creator))
     {
       if (ppc_elf_tls_setup (output_bfd, &link_info) && !notlsopt)
        {
@@ -57,24 +129,46 @@ EOF
 #
 PARSE_AND_LIST_PROLOGUE='
 #define OPTION_NO_TLS_OPT              301
+#define OPTION_OLD_PLT                 302
+#define OPTION_OLD_GOT                 303
+#define OPTION_STUBSYMS                        304
 '
 
 PARSE_AND_LIST_LONGOPTS='
+  { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS },
   { "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT },
+  { "bss-plt", no_argument, NULL, OPTION_OLD_PLT },
+  { "sdata-got", no_argument, NULL, OPTION_OLD_GOT },
 '
 
 PARSE_AND_LIST_OPTIONS='
   fprintf (file, _("\
-  --no-tls-optimize     Don'\''t try to optimize TLS accesses.\n"
+  --emit-stub-syms      Label linker stubs with a symbol.\n\
+  --no-tls-optimize     Don'\''t try to optimize TLS accesses.\n\
+  --bss-plt             Force old-style BSS PLT.\n\
+  --sdata-got           Force GOT location just before .sdata.\n"
                   ));
 '
 
 PARSE_AND_LIST_ARGS_CASES='
+    case OPTION_STUBSYMS:
+      emit_stub_syms = 1;
+      break;
+
     case OPTION_NO_TLS_OPT:
       notlsopt = 1;
       break;
+
+    case OPTION_OLD_PLT:
+      old_plt = 1;
+      break;
+
+    case OPTION_OLD_GOT:
+      old_got = 1;
+      break;
 '
 
-# Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation
+# Put these extra ppc32elf routines in ld_${EMULATION_NAME}_emulation
 #
+LDEMUL_AFTER_OPEN=ppc_after_open
 LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation