Drop platform-nullos stuff, which was already horribly out-of-date for a long time.

src/platform-nullos.cc

-// Copyright 2012 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
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Platform specific code for NULLOS goes here
-
-// Minimal include to get access to abort, fprintf and friends for bootstrapping
-// messages.
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "v8.h"
-
-#include "platform.h"
-#include "vm-state-inl.h"
-
-
-namespace v8 {
-namespace internal {
-
-// Give V8 the opportunity to override the default ceil behaviour.
-double ceiling(double x) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-// Give V8 the opportunity to override the default fmod behavior.
-double modulo(double x, double y) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-double fast_sin(double x) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-double fast_cos(double x) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-double fast_tan(double x) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-double fast_log(double x) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-// Initialize OS class early in the V8 startup.
-void OS::SetUp() {
-  // Seed the random number generator.
-  UNIMPLEMENTED();
-}
-
-
-void OS::PostSetUp() {
-  UNIMPLEMENTED();
-}
-
-
-void OS::TearDown() {
-  UNIMPLEMENTED();
-}
-
-
-// Returns the accumulated user time for thread.
-int OS::GetUserTime(uint32_t* secs,  uint32_t* usecs) {
-  UNIMPLEMENTED();
-  *secs = 0;
-  *usecs = 0;
-  return 0;
-}
-
-
-// Returns current time as the number of milliseconds since
-// 00:00:00 UTC, January 1, 1970.
-double OS::TimeCurrentMillis() {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-// Returns ticks in microsecond resolution.
-int64_t OS::Ticks() {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-// Returns a string identifying the current timezone taking into
-// account daylight saving.
-const char* OS::LocalTimezone(double time) {
-  UNIMPLEMENTED();
-  return "<none>";
-}
-
-
-// Returns the daylight savings offset in milliseconds for the given time.
-double OS::DaylightSavingsOffset(double time) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-int OS::GetLastError() {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-// Returns the local time offset in milliseconds east of UTC without
-// taking daylight savings time into account.
-double OS::LocalTimeOffset() {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-// Print (debug) message to console.
-void OS::Print(const char* format, ...) {
-  UNIMPLEMENTED();
-}
-
-
-// Print (debug) message to console.
-void OS::VPrint(const char* format, va_list args) {
-  // Minimalistic implementation for bootstrapping.
-  vfprintf(stdout, format, args);
-}
-
-
-void OS::FPrint(FILE* out, const char* format, ...) {
-  va_list args;
-  va_start(args, format);
-  VFPrint(out, format, args);
-  va_end(args);
-}
-
-
-void OS::VFPrint(FILE* out, const char* format, va_list args) {
-  vfprintf(out, format, args);
-}
-
-
-// Print error message to console.
-void OS::PrintError(const char* format, ...) {
-  // Minimalistic implementation for bootstrapping.
-  va_list args;
-  va_start(args, format);
-  VPrintError(format, args);
-  va_end(args);
-}
-
-
-// Print error message to console.
-void OS::VPrintError(const char* format, va_list args) {
-  // Minimalistic implementation for bootstrapping.
-  vfprintf(stderr, format, args);
-}
-
-
-int OS::SNPrintF(char* str, size_t size, const char* format, ...) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-int OS::VSNPrintF(char* str, size_t size, const char* format, va_list args) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-uint64_t OS::CpuFeaturesImpliedByPlatform() {
-  return 0;
-}
-
-
-double OS::nan_value() {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-bool OS::ArmUsingHardFloat() {
-  UNIMPLEMENTED();
-}
-
-
-bool OS::IsOutsideAllocatedSpace(void* address) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-size_t OS::AllocateAlignment() {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-void* OS::Allocate(const size_t requested,
-                   size_t* allocated,
-                   bool executable) {
-  UNIMPLEMENTED();
-  return NULL;
-}
-
-
-void OS::Free(void* buf, const size_t length) {
-  // TODO(1240712): potential system call return value which is ignored here.
-  UNIMPLEMENTED();
-}
-
-
-void OS::Guard(void* address, const size_t size) {
-  UNIMPLEMENTED();
-}
-
-
-void OS::Sleep(int milliseconds) {
-  UNIMPLEMENTED();
-}
-
-
-int OS::NumberOfCores() {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-void OS::Abort() {
-  // Minimalistic implementation for bootstrapping.
-  abort();
-}
-
-
-void OS::DebugBreak() {
-  UNIMPLEMENTED();
-}
-
-
-void OS::DumpBacktrace() {
-  // Currently unsupported.
-}
-
-
-OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
-  UNIMPLEMENTED();
-  return NULL;
-}
-
-
-OS::MemoryMappedFile* OS::MemoryMappedFile::create(const char* name, int size,
-    void* initial) {
-  UNIMPLEMENTED();
-  return NULL;
-}
-
-
-void OS::LogSharedLibraryAddresses() {
-  UNIMPLEMENTED();
-}
-
-
-void OS::SignalCodeMovingGC() {
-  UNIMPLEMENTED();
-}
-
-
-int OS::StackWalk(Vector<OS::StackFrame> frames) {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-
-VirtualMemory::VirtualMemory() {
-  UNIMPLEMENTED();
-}
-
-
-VirtualMemory::VirtualMemory(size_t size) {
-  UNIMPLEMENTED();
-}
-
-
-VirtualMemory::VirtualMemory(size_t size, void* address_hint) {
-  UNIMPLEMENTED();
-}
-
-
-VirtualMemory::~VirtualMemory() {
-  UNIMPLEMENTED();
-}
-
-
-bool VirtualMemory::IsReserved() {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-void VirtualMemory::Reset() {
-  UNIMPLEMENTED();
-}
-
-
-bool VirtualMemory::Commit(void* address, size_t size, bool executable) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-bool VirtualMemory::Uncommit(void* address, size_t size) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-bool VirtualMemory::Guard(void* address) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-void* VirtualMemory::ReserveRegion(size_t size) {
-  UNIMPLEMENTED();
-  return NULL;
-}
-
-
-bool VirtualMemory::CommitRegion(void* base, size_t size, bool is_executable) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-bool VirtualMemory::UncommitRegion(void* base, size_t size) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-bool VirtualMemory::ReleaseRegion(void* base, size_t size) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-bool VirtualMemory::HasLazyCommits() {
-  // TODO(alph): implement for the platform.
-  return false;
-}
-
-
-class Thread::PlatformData : public Malloced {
- public:
-  PlatformData() {
-    UNIMPLEMENTED();
-  }
-
-  void* pd_data_;
-};
-
-
-Thread::Thread(const Options& options)
-    : data_(new PlatformData()),
-      stack_size_(options.stack_size),
-      start_semaphore_(NULL) {
-  set_name(options.name);
-  UNIMPLEMENTED();
-}
-
-
-Thread::Thread(const char* name)
-    : data_(new PlatformData()),
-      stack_size_(0) {
-  set_name(name);
-  UNIMPLEMENTED();
-}
-
-
-Thread::~Thread() {
-  delete data_;
-  UNIMPLEMENTED();
-}
-
-
-void Thread::set_name(const char* name) {
-  strncpy(name_, name, sizeof(name_));
-  name_[sizeof(name_) - 1] = '\0';
-}
-
-
-void Thread::Start() {
-  UNIMPLEMENTED();
-}
-
-
-void Thread::Join() {
-  UNIMPLEMENTED();
-}
-
-
-Thread::LocalStorageKey Thread::CreateThreadLocalKey() {
-  UNIMPLEMENTED();
-  return static_cast<LocalStorageKey>(0);
-}
-
-
-void Thread::DeleteThreadLocalKey(LocalStorageKey key) {
-  UNIMPLEMENTED();
-}
-
-
-void* Thread::GetThreadLocal(LocalStorageKey key) {
-  UNIMPLEMENTED();
-  return NULL;
-}
-
-
-void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
-  UNIMPLEMENTED();
-}
-
-
-void Thread::YieldCPU() {
-  UNIMPLEMENTED();
-}
-
-
-class NullMutex : public Mutex {
- public:
-  NullMutex() : data_(NULL) {
-    UNIMPLEMENTED();
-  }
-
-  virtual ~NullMutex() {
-    UNIMPLEMENTED();
-  }
-
-  virtual int Lock() {
-    UNIMPLEMENTED();
-    return 0;
-  }
-
-  virtual int Unlock() {
-    UNIMPLEMENTED();
-    return 0;
-  }
-
- private:
-  void* data_;
-};
-
-
-Mutex* OS::CreateMutex() {
-  UNIMPLEMENTED();
-  return new NullMutex();
-}
-
-
-class NullSemaphore : public Semaphore {
- public:
-  explicit NullSemaphore(int count) : data_(NULL) {
-    UNIMPLEMENTED();
-  }
-
-  virtual ~NullSemaphore() {
-    UNIMPLEMENTED();
-  }
-
-  virtual void Wait() {
-    UNIMPLEMENTED();
-  }
-
-  virtual void Signal() {
-    UNIMPLEMENTED();
-  }
- private:
-  void* data_;
-};
-
-
-Semaphore* OS::CreateSemaphore(int count) {
-  UNIMPLEMENTED();
-  return new NullSemaphore(count);
-}
-
-
-class ProfileSampler::PlatformData  : public Malloced {
- public:
-  PlatformData() {
-    UNIMPLEMENTED();
-  }
-};
-
-
-ProfileSampler::ProfileSampler(int interval) {
-  UNIMPLEMENTED();
-  // Shared setup follows.
-  data_ = new PlatformData();
-  interval_ = interval;
-  active_ = false;
-}
-
-
-ProfileSampler::~ProfileSampler() {
-  UNIMPLEMENTED();
-  // Shared tear down follows.
-  delete data_;
-}
-
-
-void ProfileSampler::Start() {
-  UNIMPLEMENTED();
-}
-
-
-void ProfileSampler::Stop() {
-  UNIMPLEMENTED();
-}
-
-
-} }  // namespace v8::internal