[MIPS] Adding binutils changes for MIPS/NaCl architecture.

binutils-2.20/bfd/elf32-mips.c

Index: binutils-2.20/bfd/elf32-mips.c
===================================================================
--- a/binutils-2.20/bfd/elf32-mips.c
+++ b/binutils-2.20/bfd/elf32-mips.c
@@ -1823,3 +1823,42 @@
 /* NOTE: elf_backend_rela_normal is not defined for MIPS.  */
 
 #include "elf32-target.h"
+
+/* Native Client targets. */
+
+#undef  TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM               bfd_elf32_tradlittlemips_nacl_vec
+#undef  TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME              "elf32-tradlittlemips-nacl"
+#undef  TARGET_BIG_SYM
+#define TARGET_BIG_SYM                  bfd_elf32_tradbigmips_nacl_vec
+#undef  TARGET_BIG_NAME
+#define TARGET_BIG_NAME                 "elf32-tradbigmips-nacl"
+
+#include "elf/nacl.h"
+
+#undef ELF_OSABI
+#define ELF_OSABI  ELFOSABI_NACL
+
+static void
+elf32_mips_nacl_final_write_processing (bfd *abfd, bfd_boolean linker)
+{
+  _bfd_mips_elf_final_write_processing (abfd, linker);
+
+  elf_elfheader (abfd)->e_ident[EI_OSABI] = ELFOSABI_NACL;
+  elf_elfheader (abfd)->e_ident[EI_ABIVERSION] = EF_NACL_ABIVERSION;
+  elf_elfheader (abfd)->e_flags |= EF_NACL_ALIGN_16;
+}
+
+#undef  elf32_bed
+#define elf32_bed elf32_mips_nacl_bed
+
+#undef  elf_backend_final_write_processing
+#define elf_backend_final_write_processing      elf32_mips_nacl_final_write_processing
+
+#undef  ELF_MAXPAGESIZE
+#define ELF_MAXPAGESIZE                 0x10000
+
+#include "elf32-target.h"
+
+