deps: update V8 to 8.4.371.19

PR-URL: https://github.com/nodejs/node/pull/33579
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Shelley Vohr <codebytere@gmail.com>

5 files changed, 35 insertions, 36 deletions

diff --git a/deps/v8/src/base/platform/mutex.h b/deps/v8/src/base/platform/mutex.h
index 5b3b31ec1e..c3144f7ceb 100644
--- a/deps/v8/src/base/platform/mutex.h
+++ b/deps/v8/src/base/platform/mutex.h
@@ -67,7 +67,8 @@ class V8_BASE_EXPORT Mutex final {
     return native_handle_;
   }
 
-  V8_INLINE void AssertHeld() { DCHECK_EQ(1, level_); }
+  V8_INLINE void AssertHeld() const { DCHECK_EQ(1, level_); }
+  V8_INLINE void AssertUnheld() const { DCHECK_EQ(0, level_); }
 
  private:
   NativeHandle native_handle_;
diff --git a/deps/v8/src/base/platform/platform-aix.cc b/deps/v8/src/base/platform/platform-aix.cc
index e3d7c426b4..e1ccda2ab0 100644
--- a/deps/v8/src/base/platform/platform-aix.cc
+++ b/deps/v8/src/base/platform/platform-aix.cc
@@ -129,5 +129,34 @@ void OS::SignalCodeMovingGC() {}
 
 void OS::AdjustSchedulingParams() {}
 
+// static
+void* Stack::GetStackStart() {
+  // pthread_getthrds_np creates 3 values:
+  // __pi_stackaddr, __pi_stacksize, __pi_stackend
+
+  // higher address ----- __pi_stackend, stack base
+  //
+  //   |
+  //   |  __pi_stacksize, stack grows downwards
+  //   |
+  //   V
+  //
+  // lower address -----  __pi_stackaddr, current sp
+
+  pthread_t tid = pthread_self();
+  struct __pthrdsinfo buf;
+  // clear buf
+  memset(&buf, 0, sizeof(buf));
+  char regbuf[1];
+  int regbufsize = sizeof(regbuf);
+  const int rc = pthread_getthrds_np(&tid, PTHRDSINFO_QUERY_ALL, &buf,
+                                     sizeof(buf), regbuf, &regbufsize);
+  CHECK(!rc);
+  if (buf.__pi_stackend == NULL || buf.__pi_stackaddr == NULL) {
+    return nullptr;
+  }
+  return reinterpret_cast<void*>(buf.__pi_stackend);
+}
+
 }  // namespace base
 }  // namespace v8
diff --git a/deps/v8/src/base/platform/platform-posix.cc b/deps/v8/src/base/platform/platform-posix.cc
index 54f72e04e6..c3f0b08ddd 100644
--- a/deps/v8/src/base/platform/platform-posix.cc
+++ b/deps/v8/src/base/platform/platform-posix.cc
@@ -970,7 +970,7 @@ void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
 // pthread_getattr_np used below is non portable (hence the _np suffix). We
 // keep this version in POSIX as most Linux-compatible derivatives will
 // support it. MacOS and FreeBSD are different here.
-#if !defined(V8_OS_FREEBSD) && !defined(V8_OS_MACOSX) && !defined(V8_OS_SOLARIS)
+#if !defined(V8_OS_FREEBSD) && !defined(V8_OS_MACOSX) && !defined(_AIX)
 
 // static
 void* Stack::GetStackStart() {
@@ -996,7 +996,7 @@ void* Stack::GetStackStart() {
   return nullptr;
 }
 
-#endif  // !defined(V8_OS_FREEBSD) && !defined(V8_OS_MACOSX) && !defined(V8_OS_SOLARIS)
+#endif  // !defined(V8_OS_FREEBSD) && !defined(V8_OS_MACOSX) && !defined(_AIX)
 
 // static
 void* Stack::GetCurrentStackPosition() { return __builtin_frame_address(0); }
diff --git a/deps/v8/src/base/platform/platform-solaris.cc b/deps/v8/src/base/platform/platform-solaris.cc
index b4ac98ce73..b5b16dac56 100644
--- a/deps/v8/src/base/platform/platform-solaris.cc
+++ b/deps/v8/src/base/platform/platform-solaris.cc
@@ -65,23 +65,5 @@ void OS::SignalCodeMovingGC() {}
 
 void OS::AdjustSchedulingParams() {}
 
-// static
-void* Stack::GetStackStart() {
-  pthread_attr_t attr;
-  int error;
-  pthread_attr_init(&attr);
-  error = pthread_attr_get_np(pthread_self(), &attr);
-  if (!error) {
-    void* base;
-    size_t size;
-    error = pthread_attr_getstack(&attr, &base, &size);
-    CHECK(!error);
-    pthread_attr_destroy(&attr);
-    return reinterpret_cast<uint8_t*>(base) + size;
-  }
-  pthread_attr_destroy(&attr);
-  return nullptr;
-}
-
 }  // namespace base
 }  // namespace v8
diff --git a/deps/v8/src/base/platform/time.cc b/deps/v8/src/base/platform/time.cc
index f07fd8e595..a12a5b0d0a 100644
--- a/deps/v8/src/base/platform/time.cc
+++ b/deps/v8/src/base/platform/time.cc
@@ -125,12 +125,6 @@ V8_INLINE bool IsHighResolutionTimer(clockid_t clk_id) {
 }
 
 #elif V8_OS_WIN
-V8_INLINE bool IsQPCReliable() {
-  v8::base::CPU cpu;
-  // On Athlon X2 CPUs (e.g. model 15) QueryPerformanceCounter is unreliable.
-  return strcmp(cpu.vendor(), "AuthenticAMD") == 0 && cpu.family() == 15;
-}
-
 // Returns the current value of the performance counter.
 V8_INLINE uint64_t QPCNowRaw() {
   LARGE_INTEGER perf_counter_now = {};
@@ -645,11 +639,6 @@ TimeDelta QPCValueToTimeDelta(LONGLONG qpc_value) {
 
 TimeTicks QPCNow() { return TimeTicks() + QPCValueToTimeDelta(QPCNowRaw()); }
 
-bool IsBuggyAthlon(const CPU& cpu) {
-  // On Athlon X2 CPUs (e.g. model 15) QueryPerformanceCounter is unreliable.
-  return strcmp(cpu.vendor(), "AuthenticAMD") == 0 && cpu.family() == 15;
-}
-
 void InitializeTimeTicksNowFunctionPointer() {
   LARGE_INTEGER ticks_per_sec = {};
   if (!QueryPerformanceFrequency(&ticks_per_sec)) ticks_per_sec.QuadPart = 0;
@@ -667,8 +656,7 @@ void InitializeTimeTicksNowFunctionPointer() {
   // ~72% of users fall within this category.
   TimeTicksNowFunction now_function;
   CPU cpu;
-  if (ticks_per_sec.QuadPart <= 0 || !cpu.has_non_stop_time_stamp_counter() ||
-      IsBuggyAthlon(cpu)) {
+  if (ticks_per_sec.QuadPart <= 0 || !cpu.has_non_stop_time_stamp_counter()) {
     now_function = &RolloverProtectedNow;
   } else {
     now_function = &QPCNow;
@@ -800,8 +788,7 @@ ThreadTicks ThreadTicks::GetForThread(const HANDLE& thread_handle) {
 
 // static
 bool ThreadTicks::IsSupportedWin() {
-  static bool is_supported = base::CPU().has_non_stop_time_stamp_counter() &&
-                             !IsQPCReliable();
+  static bool is_supported = base::CPU().has_non_stop_time_stamp_counter();
   return is_supported;
 }