Move platform abstraction to base library

src/base/platform/platform-solaris.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Platform-specific code for Solaris 10 goes here. For the POSIX-compatible
 // parts, the implementation is in platform-posix.cc.
 
 #ifdef __sparc
 # error "V8 does not support the SPARC CPU architecture."
 #endif
 
 #include <dlfcn.h>  // dladdr
 #include <errno.h>
 #include <ieeefp.h>  // finite()
 #include <pthread.h>
 #include <semaphore.h>
 #include <signal.h>  // sigemptyset(), etc
 #include <sys/mman.h>  // mmap()
 #include <sys/regset.h>
 #include <sys/stack.h>  // for stack alignment
 #include <sys/time.h>  // gettimeofday(), timeradd()
 #include <time.h>
 #include <ucontext.h>  // walkstack(), getcontext()
 #include <unistd.h>  // getpagesize(), usleep()
 
 #include <cmath>
 
 #undef MAP_TYPE
 
-#include "src/platform.h"
-#include "src/utils.h"
+#include "src/base/macros.h"
+#include "src/base/platform/platform.h"
 
 
 // It seems there is a bug in some Solaris distributions (experienced in
 // SunOS 5.10 Generic_141445-09) which make it difficult or impossible to
 // access signbit() despite the availability of other C99 math functions.
 #ifndef signbit
 namespace std {
 // Test sign - usually defined in math.h
 int signbit(double x) {
   // We need to take care of the special case of both positive and negative
   // versions of zero.
   if (x == 0) {
     return fpclass(x) & FP_NZERO;
   } else {
     // This won't detect negative NaN but that should be okay since we don't
     // assume that behavior.
     return x < 0;
   }
 }
 }  // namespace std
 #endif  // signbit
 
 namespace v8 {
-namespace internal {
+namespace base {
 
 
 const char* OS::LocalTimezone(double time, TimezoneCache* cache) {
   if (std::isnan(time)) return "";
   time_t tv = static_cast<time_t>(std::floor(time/msPerSecond));
   struct tm* t = localtime(&tv);
   if (NULL == t) return "";
   return tzname[0];  // The location of the timezone string on Solaris.
 }
 
@@ skipping 203 matching lines @@
 bool VirtualMemory::ReleaseRegion(void* base, size_t size) {
   return munmap(base, size) == 0;
 }
 
 
 bool VirtualMemory::HasLazyCommits() {
   // TODO(alph): implement for the platform.
   return false;
 }
 
-} }  // namespace v8::internal
+} }  // namespace v8::base