Initial implementation of GetStackSample sampling profiler API.

test/cctest/cctest.status

 # 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 235 matching lines @@
 
 }],  # 'system == windows'
 
 ##############################################################################
 ['system == macos', {
 
   # BUG(3125).
   'test-debug/DebugGetLoadedScripts': [PASS, FLAKY],
   'test-debug/DebugStepLinear': [PASS, FLAKY],
   'test-debug/DebuggerClearMessageHandler': [PASS, FLAKY],
+
+  # TODO(alph): add support for MacOS.
+  'test-sampler-api/*': [SKIP],
+
 }],  # 'system == macos'
 
 ##############################################################################
 ['arch == arm', {
 
   # BUG(355): Test crashes on ARM.
   'test-log/ProfLazyMode': [SKIP],
 
   # BUG(1075): Unresolved crashes.
   'test-serialize/Deserialize': [SKIP],
@@ skipping 67 matching lines @@
   # Tests crash as there is no /tmp directory in Android.
   'test-log/LogAccessorCallbacks': [SKIP],
   'test-log/LogCallbacks': [SKIP],
   'test-log/ProfLazyMode': [SKIP],
 
   # platform-tls.h does not contain an ANDROID-related header.
   'test-platform-tls/FastTLS': [SKIP],
 
   # This test times out.
   'test-threads/ThreadJoinSelf': [SKIP],
+
+  # TODO(alph): Android doesn't seem to support getcontext, so disable the test.
+  # The test could be implemented with POSIX signals.
+  'test-sampler-api/*': [SKIP],
+
 }],  # 'arch == android_arm or arch == android_ia32'
 
 ##############################################################################
 ['arch == nacl_ia32 or arch == nacl_x64', {
 
   # NaCl builds have problems with threaded tests since Pepper_28.
   # V8 Issue 2786
   'test-api/Threading1': [SKIP],
   'test-lockers/MultithreadedParallelIsolates': [SKIP],
   'test-lockers/ExtensionsRegistration': [SKIP],
@@ skipping 88 matching lines @@
   'test-api/Float32Array' : [SKIP],
   'test-api/Float64Array' : [SKIP],
   'test-api/Regress2333' : [SKIP],
   'test-alloc/StressHandles' : [SKIP],
   'test-alloc/StressJS' : [SKIP],
   'test-accessors/HandleScopePop' : [SKIP],
   'test-accessors/Gc' : [SKIP],
 
 }],  # 'arch == nacl_ia32 or arch == nacl_x64'
 ]