[MIPS] Implementation of sel_ldr for MIPS architecture.

src/include/nacl_base.h

 /*
  * Copyright (c) 2011 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.
  */
 
 /*
  * NaCl Basic Common Definitions.
  */
 #ifndef NATIVE_CLIENT_SRC_INCLUDE_NACL_BASE_H_
 #define NATIVE_CLIENT_SRC_INCLUDE_NACL_BASE_H_ 1
 
 /*
+ * The following part is necessary for Mips because Mips compilers by default
+ * preprocess "mips" string and replace it with character '1'. To allow using
+ * "NACL_mips" macro, we need to undefine "mips" macro.
+ */
+
+#ifdef mips
+# undef mips
+#endif
+
+/*
  * putting extern "C" { } in header files make emacs want to indent
  * everything, which looks odd.  rather than putting in fancy syntax
  * recognition in c-mode, we just use the following macros.
  *
  * TODO: before releasing code, we should provide a defintion of a
  * function to be called from c-mode-hook that will make it easy to
  * follow our coding style (which we also need to document).
  */
 #ifdef __cplusplus
 # define EXTERN_C_BEGIN  extern "C" {
@@ skipping 28 matching lines @@
  * NACL_ARCH or NACL_arm, you need to include this header.
  */
 #define NACL_MERGE(x, y) x ## y
 #define NACL_ARCH(x) NACL_MERGE(NACL_, x)
 /*
  * Avoid using 0, because "#if FOO == 0" is true if FOO is undefined, and does
  * not produce a warning or error.
  */
 #define NACL_x86  1
 #define NACL_arm  2
+#define NACL_mips 3
 
 /*****************************************************************************
  * Architecture name encodings.
  *
  * NACL_ARCH_NAME(name, arch) - Name specific to the given architecture,
  * NACL_SUBARCH_NAME(name, arch, subarch) - Name specific to the
  *    given architecture and subarchitecture.
  */
 #define NACL_MERGE_ARCH_NAME(name, arch) NaCl_ ## name ## _ ## arch
 #define NACL_ARCH_NAME(name, arch) NACL_MERGE_ARCH_NAME(name, arch)
 #define NACL_MERGE_SUBARCH_NAME(name, arch, subarch) \
   NaCl_ ## name ## _ ## arch ## _ ## subarch
 #define NACL_SUBARCH_NAME(name, arch, subarch) \
   NACL_MERGE_SUBARCH_NAME(name, arch, subarch)
 
 #endif  /* NATIVE_CLIENT_SRC_INCLUDE_NACL_BASE_H_ */