MIPS: port ARM: Changed the handling of compiletime CPU feature detection

src/platform-linux.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 112 matching lines @@
     PrintF("ERROR: Binary not compiled with -mfloat-abi=hard but with "
            "-DUSE_EABI_HARDFLOAT\n");
     exit(1);
 #endif
   }
 #endif
 }
 
 
 uint64_t OS::CpuFeaturesImpliedByPlatform() {
-#if(defined(__mips_hard_float) && __mips_hard_float != 0)
-    // Here gcc is telling us that we are on an MIPS and gcc is assuming that we
-    // have FPU instructions.  If gcc can assume it then so can we.
-    return 1u << FPU;
-#else
   return 0;  // Linux runs on anything.
-#endif
 }
 
 
 #ifdef __arm__
 static bool CPUInfoContainsString(const char * search_string) {
   const char* file_name = "/proc/cpuinfo";
   // This is written as a straight shot one pass parser
   // and not using STL string and ifstream because,
   // on Linux, it's reading from a (non-mmap-able)
   // character special device.
@@ skipping 993 matching lines @@
 
 
 void Sampler::Stop() {
   ASSERT(IsActive());
   SignalSender::RemoveActiveSampler(this);
   SetActive(false);
 }
 
 
 } }  // namespace v8::internal