[MIPS] Implementation of sel_ldr for MIPS architecture.

src/trusted/service_runtime/arch/mips/sel_addrspace_mips.c

Index: src/trusted/service_runtime/arch/mips/sel_addrspace_mips.c
diff --git a/src/trusted/service_runtime/arch/arm/sel_addrspace_arm.c b/src/trusted/service_runtime/arch/mips/sel_addrspace_mips.c
similarity index 81%
copy from src/trusted/service_runtime/arch/arm/sel_addrspace_arm.c
copy to src/trusted/service_runtime/arch/mips/sel_addrspace_mips.c
index 4c81d2919d6812d83c3b4f0314bfa02903601e8f..a41fcfe7ca020c8aedc2ece7695791e9c9e99d72 100644
--- a/src/trusted/service_runtime/arch/arm/sel_addrspace_arm.c
+++ b/src/trusted/service_runtime/arch/mips/sel_addrspace_mips.c
@@ -1,7 +1,7 @@
 /*
- * 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.
+ * Copyright 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.
  */
 
 #include "native_client/src/include/nacl_platform.h"
@@ -22,8 +22,8 @@ NaClErrorCode NaClAllocateSpace(void **mem, size_t addrsp_size) {
   CHECK(NULL != mem);
 
   /*
-   * On ARM, we cheat slightly: we add two pages to the requested
-   * allocation!  This accomodates the guard region we require at the
+   * On Mips, we also cheat slightly: we add two pages to the requested
+   * allocation! This accomodates the guard region we require at the
    * top end of untrusted memory.
    */
   addrsp_size += NACL_ADDRSPACE_UPPER_GUARD_SIZE;
@@ -33,18 +33,19 @@ NaClErrorCode NaClAllocateSpace(void **mem, size_t addrsp_size) {
   /*
    * On 32 bit Linux, a 1 gigabyte block of address space may be reserved at
    * the zero-end of the address space during process creation, to address
-   * sandbox layout requirements on ARM and performance issues on Intel ATOM.
-   * Look for this prereserved block and if found, pass its address to the
+   * sandbox layout requirements on Mips and performance issues on Intel ATOM.
+   * Look for this pre-reserved block and if found, pass its address to the
    * page allocation function.
    */
   if (!NaClFindPrereservedSandboxMemory(mem, addrsp_size)) {
-    /* On ARM, we should always have prereserved sandbox memory. */
+    /* On Mips, we should always have prereserved sandbox memory. */
     NaClLog(LOG_ERROR, "NaClAllocateSpace:"
             " Could not find correct amount of prereserved memory"
             " (looked for 0x%016"NACL_PRIxS" bytes).\n",
             addrsp_size);
     return LOAD_NO_MEMORY;
   }
+
   /*
    * When creating a zero-based sandbox, we do not allocate the first 64K of
    * pages beneath the trampolines, because -- on Linux at least -- we cannot.