Update pnacl binutils DEPS and enable mips support in binutils

pnacl/build.sh

 #!/bin/bash
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 #@                 PNaCl toolchain build script
 #@-------------------------------------------------------------------
 #@ This script builds the ARM and PNaCl untrusted toolchains.
 #@ It MUST be run from the native_client/ directory.
 ######################################################################
@@ skipping 1841 matching lines @@
 }
 
 #+ binutils-configure- Configure binutils for ARM
 binutils-configure() {
   StepBanner "BINUTILS" "Configure"
 
   local srcdir="${TC_SRC_BINUTILS}"
   local objdir="${TC_BUILD_BINUTILS}"
 
   # enable multiple targets so that we can use the same ar with all .o files
-  local targ="arm-pc-nacl,i686-pc-nacl,x86_64-pc-nacl"
+  local targ="arm-pc-nacl,i686-pc-nacl,x86_64-pc-nacl,mipsel-pc-nacl"
   mkdir -p "${objdir}"
   spushd "${objdir}"
 
   # The linux escaping is horrible but apparently the only way of doing this:
   # c.f.:  http://sourceware.org/ml/binutils/2009-05/msg00252.html
   # all we try to do here is to add "$ORIGIN/../lib to "rpath".
   # If you ever touch this please make sure that rpath is correct via:
   # objdump -p toolchain/${TOOLCHAIN_LABEL}/host/bin/arm-pc-nacl-ld.gold
   # objdump -p toolchain/${TOOLCHAIN_LABEL}/host/bin/arm-pc-nacl-objdump
   if ${BUILD_PLATFORM_LINUX} ; then
       local flags='-Xlinker -rpath -Xlinker '"'"'$\\$$\$$\\$$\$$ORIGIN/../lib'"'"
       local shared='yes'
       local zlib='--without-zlib'
   else
       # The shared build for binutils on mac is currently disabled.
       # A mac-expert needs to look at this but
       # It seems that on mac the linker is storing "full" library paths into
       # the dynamic image, e.g, for the llc dynamic image we see  paths like:
       # @executable_path/../lib/libLLVM-3.3svn.dylib
       # This only works if at linktime the libraries are already at
       # @executable_path/../lib which is not the case for mac
       #local flags="-Xlinker -rpath -Xlinker '@executable_path/../lib'"
       local flags=''
       local shared='no'
       local zlib=''
   fi
   # The --enable-gold and --enable-plugins options are on so that we
-  # can use gold's support for plugin to link PNaCl modules.
+  # can use gold's support for plugin to link PNaCl modules, and use
+  # gold as the final linker. We do not use bfd ld, and it is disabled
+  # in part because we do not have its MIPS support downstream.
 
   # We llvm's mc for assembly so we no longer build gas
-  # TODO(robertm): We no longer use ld and should really use
-  #                --enable-ld=no but the binutils build setup is buggy
   RunWithLog binutils.configure \
       env -i \
       PATH="${PATH}" \
       CC="${CC}" \
       CXX="${CXX}" \
       LDFLAGS="${flags}" \
       ${srcdir}/configure \
           --prefix="${BINUTILS_INSTALL_DIR}" \
           --target=${BINUTILS_TARGET} \
           --enable-targets=${targ} \
           --enable-shared=${shared} \
-          --enable-gold=yes \
-          --enable-ld=yes \
+          --enable-gold=default \
+          --enable-ld=no \
           --disable-nls \
           --enable-plugins \
           --disable-werror \
           --without-gas \
           ${zlib} \
           --with-sysroot="${NONEXISTENT_PATH}"
   # There's no point in setting the correct path as sysroot, because we
   # want the toolchain to be relocatable. The driver will use ld command-line
   # option --sysroot= to override this value and set it to the correct path.
   # However, we need to include --with-sysroot during configure to get this
@@ skipping 1884 matching lines @@
 
 if [ "$(type -t $1)" != "function" ]; then
   #Usage
   echo "ERROR: unknown function '$1'." >&2
   echo "For help, try:"
   echo "    $0 help"
   exit 1
 fi
 
 "$@"