Add upstream binutils-2.25 snapshot 4/4 2014

For MIPS -mmsa support

Change-Id: I08c4f002fa7b33dec85ed75956e6ab551bb03c96

1 files changed, 250 insertions, 0 deletions

diff --git a/binutils-2.25/ld/emultempl/m68kelf.em b/binutils-2.25/ld/emultempl/m68kelf.em
new file mode 100644
index 00000000..48a50bcf
--- /dev/null
+++ b/binutils-2.25/ld/emultempl/m68kelf.em
@@ -0,0 +1,250 @@
+# This shell script emits a C file. -*- C -*-
+#   Copyright 2000, 2001, 2003, 2005, 2007, 2008, 2009
+#   Free Software Foundation, Inc.
+#   Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on armelf.em
+#
+# This file is part of the GNU Binutils.
+#
+# 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.
+#
+# 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 this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+
+# This file is sourced from elf32.em, and defines some extra routines for m68k
+# embedded systems using ELF and for some other systems using m68k ELF.  While
+# it is sourced from elf32.em for all m68k ELF configurations, here we include
+# only the features we want depending on the configuration.
+
+case ${target} in
+  m68*-*-elf)
+    echo "#define SUPPORT_EMBEDDED_RELOCS" >>e${EMULATION_NAME}.c
+    ;;
+esac
+
+case ${target} in
+  *-linux*)
+# Don't use multi-GOT by default due to glibc linker's assumption
+# that GOT pointer points to GOT[0].
+#   got_handling_target_default=GOT_HANDLING_MULTIGOT
+    got_handling_target_default=GOT_HANDLING_SINGLE
+    ;;
+  *)
+    got_handling_target_default=GOT_HANDLING_SINGLE
+    ;;
+esac
+
+fragment <<EOF
+
+#define GOT_HANDLING_SINGLE   (0)
+#define GOT_HANDLING_NEGATIVE (1)
+#define GOT_HANDLING_MULTIGOT (2)
+#define GOT_HANDLING_TARGET_DEFAULT ${got_handling_target_default}
+
+/* How to generate GOT.  */
+static int got_handling = GOT_HANDLING_DEFAULT;
+
+#ifdef SUPPORT_EMBEDDED_RELOCS
+static void check_sections (bfd *, asection *, void *);
+#endif
+
+/* This function is run after all the input files have been opened.  */
+
+static void
+m68k_elf_after_open (void)
+{
+  /* Call the standard elf routine.  */
+  gld${EMULATION_NAME}_after_open ();
+
+#ifdef SUPPORT_EMBEDDED_RELOCS
+  if (command_line.embedded_relocs
+      && (! link_info.relocatable))
+    {
+      bfd *abfd;
+
+      /* In the embedded relocs mode we create a .emreloc section for each
+	 input file with a nonzero .data section.  The BFD backend will fill in
+	 these sections with magic numbers which can be used to relocate the
+	 data section at run time.  */
+      for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
+	{
+	  asection *datasec;
+
+	  /* As first-order business, make sure that each input BFD is either
+	     COFF or ELF.  We need to call a special BFD backend function to
+	     generate the embedded relocs, and we have such functions only for
+	     COFF and ELF.  */
+	  if (bfd_get_flavour (abfd) != bfd_target_coff_flavour
+	      && bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+	    einfo ("%F%B: all input objects must be COFF or ELF for --embedded-relocs\n");
+
+	  datasec = bfd_get_section_by_name (abfd, ".data");
+
+	  /* Note that we assume that the reloc_count field has already
+	     been set up.  We could call bfd_get_reloc_upper_bound, but
+	     that returns the size of a memory buffer rather than a reloc
+	     count.  We do not want to call bfd_canonicalize_reloc,
+	     because although it would always work it would force us to
+	     read in the relocs into BFD canonical form, which would waste
+	     a significant amount of time and memory.  */
+	  if (datasec != NULL && datasec->reloc_count > 0)
+	    {
+	      asection *relsec;
+
+	      relsec = bfd_make_section_with_flags (abfd, ".emreloc",
+						    (SEC_ALLOC
+						    | SEC_LOAD
+						    | SEC_HAS_CONTENTS
+						    | SEC_IN_MEMORY));
+	      if (relsec == NULL
+		  || ! bfd_set_section_alignment (abfd, relsec, 2)
+		  || ! bfd_set_section_size (abfd, relsec,
+					     datasec->reloc_count * 12))
+		einfo ("%F%B: can not create .emreloc section: %E\n");
+	    }
+
+	  /* Double check that all other data sections are empty, as is
+	     required for embedded PIC code.  */
+	  bfd_map_over_sections (abfd, check_sections, datasec);
+	}
+    }
+#endif /* SUPPORT_EMBEDDED_RELOCS */
+}
+
+#ifdef SUPPORT_EMBEDDED_RELOCS
+/* Check that of the data sections, only the .data section has
+   relocs.  This is called via bfd_map_over_sections.  */
+
+static void
+check_sections (bfd *abfd, asection *sec, void *datasec)
+{
+  if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
+      && sec != datasec
+      && sec->reloc_count != 0)
+    einfo ("%B%X: section %s has relocs; can not use --embedded-relocs\n",
+	   abfd, bfd_get_section_name (abfd, sec));
+}
+
+#endif /* SUPPORT_EMBEDDED_RELOCS */
+
+/* This function is called after the section sizes and offsets have
+   been set.  */
+
+static void
+m68k_elf_after_allocation (void)
+{
+  /* Call the standard elf routine.  */
+  gld${EMULATION_NAME}_after_allocation ();
+
+#ifdef SUPPORT_EMBEDDED_RELOCS
+  if (command_line.embedded_relocs
+      && (! link_info.relocatable))
+    {
+      bfd *abfd;
+
+      /* If we are generating embedded relocs, call a special BFD backend
+	 routine to do the work.  */
+      for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
+	{
+	  asection *datasec, *relsec;
+	  char *errmsg;
+
+	  datasec = bfd_get_section_by_name (abfd, ".data");
+
+	  if (datasec == NULL || datasec->reloc_count == 0)
+	    continue;
+
+	  relsec = bfd_get_section_by_name (abfd, ".emreloc");
+	  ASSERT (relsec != NULL);
+
+	  if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
+	    {
+	      if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
+							  datasec, relsec,
+							  &errmsg))
+		{
+		  if (errmsg == NULL)
+		    einfo ("%B%X: can not create runtime reloc information: %E\n",
+			   abfd);
+		  else
+		    einfo ("%X%B: can not create runtime reloc information: %s\n",
+			   abfd, errmsg);
+		}
+	    }
+	  else if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+	    {
+	      if (! bfd_m68k_elf32_create_embedded_relocs (abfd, &link_info,
+							   datasec, relsec,
+							   &errmsg))
+		{
+		  if (errmsg == NULL)
+		    einfo ("%B%X: can not create runtime reloc information: %E\n",
+			   abfd);
+		  else
+		    einfo ("%X%B: can not create runtime reloc information: %s\n",
+			   abfd, errmsg);
+		}
+	    }
+	  else
+	    abort ();
+	}
+    }
+#endif /* SUPPORT_EMBEDDED_RELOCS */
+}
+
+/* This is a convenient point to tell BFD about target specific flags.
+   After the output has been created, but before inputs are read.  */
+
+static void
+elf_m68k_create_output_section_statements (void)
+{
+  bfd_elf_m68k_set_target_options (&link_info, got_handling);
+}
+
+EOF
+
+# Define some shell vars to insert bits of code into the standard elf
+# parse_args and list_options functions.
+#
+PARSE_AND_LIST_PROLOGUE='
+#define OPTION_GOT	301
+'
+
+PARSE_AND_LIST_LONGOPTS='
+  { "got", required_argument, NULL, OPTION_GOT},
+'
+
+PARSE_AND_LIST_OPTIONS='
+  fprintf (file, _("  --got=<type>                Specify GOT handling scheme\n"));
+'
+
+PARSE_AND_LIST_ARGS_CASES='
+    case OPTION_GOT:
+      if (strcmp (optarg, "target") == 0)
+        got_handling = GOT_HANDLING_TARGET_DEFAULT;
+      else if (strcmp (optarg, "single") == 0)
+        got_handling = 0;
+      else if (strcmp (optarg, "negative") == 0)
+        got_handling = 1;
+      else if (strcmp (optarg, "multigot") == 0)
+        got_handling = 2;
+      else
+        einfo (_("Unrecognized --got argument '\''%s'\''.\n"), optarg);
+      break;
+'
+
+# We have our own after_open and after_allocation functions, but they call
+# the standard routines, so give them a different name.
+LDEMUL_AFTER_OPEN=m68k_elf_after_open
+LDEMUL_AFTER_ALLOCATION=m68k_elf_after_allocation
+LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=elf_m68k_create_output_section_statements