8282883: Use JVM_LEAF to avoid ThreadStateTransition for some simple …

…JVM entries

Reviewed-by: dholmes, shade

src/hotspot/share/prims/jvm.cpp

@@ -487,7 +487,7 @@ JVM_ENTRY_NO_ENV(jint, JVM_ActiveProcessorCount(void))
   return os::active_processor_count();
 JVM_END
 
-JVM_ENTRY_NO_ENV(jboolean, JVM_IsUseContainerSupport(void))
+JVM_LEAF(jboolean, JVM_IsUseContainerSupport(void))
 #ifdef LINUX
   if (UseContainerSupport) {
     return JNI_TRUE;
@@ -690,7 +690,7 @@ JVM_ENTRY(void, JVM_ReportFinalizationComplete(JNIEnv * env, jobject finalizee))
   MANAGEMENT_ONLY(FinalizerService::on_complete(JNIHandles::resolve_non_null(finalizee), THREAD);)
 JVM_END
 
-JVM_ENTRY(jboolean, JVM_IsFinalizationEnabled(JNIEnv * env))
+JVM_LEAF(jboolean, JVM_IsFinalizationEnabled(JNIEnv * env))
   return InstanceKlass::is_finalization_enabled();
 JVM_END
 
@@ -3035,7 +3035,7 @@ JVM_ENTRY(void, JVM_SetThreadPriority(JNIEnv* env, jobject jthread, jint prio))
 JVM_END
 
 
-JVM_ENTRY(void, JVM_Yield(JNIEnv *env, jclass threadClass))
+JVM_LEAF(void, JVM_Yield(JNIEnv *env, jclass threadClass))
   if (os::dont_yield()) return;
   HOTSPOT_THREAD_YIELD();
   os::naked_yield();
@@ -3643,11 +3643,11 @@ JVM_ENTRY(jclass, JVM_LookupLambdaProxyClassFromArchive(JNIEnv* env,
 #endif // INCLUDE_CDS
 JVM_END
 
-JVM_ENTRY(jboolean, JVM_IsCDSDumpingEnabled(JNIEnv* env))
+JVM_LEAF(jboolean, JVM_IsCDSDumpingEnabled(JNIEnv* env))
   return Arguments::is_dumping_archive();
 JVM_END
 
-JVM_ENTRY(jboolean, JVM_IsSharingEnabled(JNIEnv* env))
+JVM_LEAF(jboolean, JVM_IsSharingEnabled(JNIEnv* env))
   return UseSharedSpaces;
 JVM_END
 
@@ -3673,7 +3673,7 @@ JVM_ENTRY_NO_ENV(jlong, JVM_GetRandomSeedForDumping())
   }
 JVM_END
 
-JVM_ENTRY(jboolean, JVM_IsDumpingClassList(JNIEnv *env))
+JVM_LEAF(jboolean, JVM_IsDumpingClassList(JNIEnv *env))
 #if INCLUDE_CDS
   return ClassListWriter::is_enabled() || DynamicDumpSharedSpaces;
 #else
@@ -3782,7 +3782,7 @@ JVM_ENTRY(jobjectArray, JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobject
 JVM_END
 
 // JVM monitoring and management support
-JVM_ENTRY_NO_ENV(void*, JVM_GetManagement(jint version))
+JVM_LEAF(void*, JVM_GetManagement(jint version))
   return Management::get_jmm_interface(version);
 JVM_END
 
@@ -3871,7 +3871,7 @@ JVM_ENTRY(jobjectArray, JVM_GetVmArguments(JNIEnv *env))
   return (jobjectArray) JNIHandles::make_local(THREAD, result_h());
 JVM_END
 
-JVM_ENTRY_NO_ENV(jint, JVM_FindSignal(const char *name))
+JVM_LEAF(jint, JVM_FindSignal(const char *name))
   return os::get_signal_number(name);
 JVM_END