Rename TARGET_OS_* to HOST_OS_*.

runtime/vm/os_macos.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
-#if defined(TARGET_OS_MACOS)
+#if defined(HOST_OS_MACOS)
 
 #include "vm/os.h"
 
 #include <errno.h>           // NOLINT
 #include <limits.h>          // NOLINT
 #include <mach/mach.h>       // NOLINT
 #include <mach/clock.h>      // NOLINT
 #include <mach/mach_time.h>  // NOLINT
 #include <sys/time.h>        // NOLINT
 #include <sys/resource.h>    // NOLINT
 #include <unistd.h>          // NOLINT
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
 #include <sys/sysctl.h>  // NOLINT
 #include <syslog.h>      // NOLINT
 #endif
 
 #include "platform/utils.h"
 #include "vm/isolate.h"
 #include "vm/zone.h"
 
 namespace dart {
 
 const char* OS::Name() {
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
   return "ios";
 #else
   return "macos";
 #endif
 }
 
 
 intptr_t OS::ProcessId() {
   return static_cast<intptr_t>(getpid());
 }
@@ skipping 42 matching lines @@
   // gettimeofday has microsecond resolution.
   struct timeval tv;
   if (gettimeofday(&tv, NULL) < 0) {
     UNREACHABLE();
     return 0;
   }
   return (static_cast<int64_t>(tv.tv_sec) * 1000000) + tv.tv_usec;
 }
 
 
-#if !TARGET_OS_IOS
+#if !HOST_OS_IOS
 static mach_timebase_info_data_t timebase_info;
 #endif
 
 
 int64_t OS::GetCurrentMonotonicTicks() {
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
   // On iOS mach_absolute_time stops while the device is sleeping. Instead use
   // now - KERN_BOOTTIME to get a time difference that is not impacted by clock
   // changes. KERN_BOOTTIME will be updated by the system whenever the system
   // clock change.
   struct timeval boottime;
   int mib[2] = {CTL_KERN, KERN_BOOTTIME};
   size_t size = sizeof(boottime);
   int kr = sysctl(mib, sizeof(mib) / sizeof(mib[0]), &boottime, &size, NULL, 0);
   ASSERT(KERN_SUCCESS == kr);
   int64_t now = GetCurrentTimeMicros();
   int64_t origin = boottime.tv_sec * kMicrosecondsPerSecond;
   origin += boottime.tv_usec;
   return now - origin;
 #else
   if (timebase_info.denom == 0) {
     kern_return_t kr = mach_timebase_info(&timebase_info);
     ASSERT(KERN_SUCCESS == kr);
   }
   ASSERT(timebase_info.denom != 0);
   // timebase_info converts absolute time tick units into nanoseconds.
   int64_t result = mach_absolute_time();
   result *= timebase_info.numer;
   result /= timebase_info.denom;
   return result;
-#endif  // TARGET_OS_IOS
+#endif  // HOST_OS_IOS
 }
 
 
 int64_t OS::GetCurrentMonotonicFrequency() {
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
   return kMicrosecondsPerSecond;
 #else
   return kNanosecondsPerSecond;
-#endif  // TARGET_OS_IOS
+#endif  // HOST_OS_IOS
 }
 
 
 int64_t OS::GetCurrentMonotonicMicros() {
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
   ASSERT(GetCurrentMonotonicFrequency() == kMicrosecondsPerSecond);
   return GetCurrentMonotonicTicks();
 #else
   ASSERT(GetCurrentMonotonicFrequency() == kNanosecondsPerSecond);
   return GetCurrentMonotonicTicks() / kNanosecondsPerMicrosecond;
-#endif  // TARGET_OS_IOS
+#endif  // HOST_OS_IOS
 }
 
 
 int64_t OS::GetCurrentThreadCPUMicros() {
   mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
   thread_basic_info_data_t info_data;
   thread_basic_info_t info = &info_data;
   mach_port_t thread_port = mach_thread_self();
   if (thread_port == MACH_PORT_NULL) {
     return -1;
   }
   kern_return_t r =
       thread_info(thread_port, THREAD_BASIC_INFO, (thread_info_t)info, &count);
   mach_port_deallocate(mach_task_self(), thread_port);
   ASSERT(r == KERN_SUCCESS);
   int64_t thread_cpu_micros =
       (info->system_time.seconds + info->user_time.seconds);
   thread_cpu_micros *= kMicrosecondsPerSecond;
   thread_cpu_micros += info->user_time.microseconds;
   thread_cpu_micros += info->system_time.microseconds;
   return thread_cpu_micros;
 }
 
 
 intptr_t OS::ActivationFrameAlignment() {
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
 #if TARGET_ARCH_ARM
   // Even if we generate code that maintains a stronger alignment, we cannot
   // assert the stronger stack alignment because C++ code will not maintain it.
   return 8;
 #elif TARGET_ARCH_ARM64
   return 16;
 #elif TARGET_ARCH_IA32
   return 16;  // iOS simulator
 #elif TARGET_ARCH_X64
   return 16;  // iOS simulator
 #elif TARGET_ARCH_DBC
   return 16;
 #else
 #error Unimplemented
 #endif
-#else   // TARGET_OS_IOS
+#else   // HOST_OS_IOS
   // OS X activation frames must be 16 byte-aligned; see "Mac OS X ABI
   // Function Call Guide".
   return 16;
-#endif  // TARGET_OS_IOS
+#endif  // HOST_OS_IOS
 }
 
 
 intptr_t OS::PreferredCodeAlignment() {
 #if defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64) ||                   \
     defined(TARGET_ARCH_ARM64) || defined(TARGET_ARCH_DBC)
   const int kMinimumAlignment = 32;
 #elif defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS)
   const int kMinimumAlignment = 16;
 #else
@@ skipping 106 matching lines @@
     len++;
   }
   return len;
 #else   // !defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) || ...
   return strnlen(s, n);
 #endif  // !defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) || ...
 }
 
 
 void OS::Print(const char* format, ...) {
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
   va_list args;
   va_start(args, format);
   vsyslog(LOG_INFO, format, args);
   va_end(args);
 #else
   va_list args;
   va_start(args, format);
   VFPrint(stdout, format, args);
   va_end(args);
 #endif
@@ skipping 72 matching lines @@
   errno = 0;
   *value = strtoll(str, &endptr, base);
   return ((errno == 0) && (endptr != str) && (*endptr == 0));
 }
 
 
 void OS::RegisterCodeObservers() {}
 
 
 void OS::PrintErr(const char* format, ...) {
-#if TARGET_OS_IOS
+#if HOST_OS_IOS
   va_list args;
   va_start(args, format);
   vsyslog(LOG_ERR, format, args);
   va_end(args);
 #else
   va_list args;
   va_start(args, format);
   VFPrint(stderr, format, args);
   va_end(args);
 #endif
@@ skipping 17 matching lines @@
   abort();
 }
 
 
 void OS::Exit(int code) {
   exit(code);
 }
 
 }  // namespace dart
 
-#endif  // defined(TARGET_OS_MACOS)
+#endif  // defined(HOST_OS_MACOS)