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8141616: Add new methods to the java Whitebox API

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Reviewed-by: kvn, dpochepk
This commit is contained in:
Konstantin Shefov 2016-02-20 11:44:14 +03:00
parent de01af89d8
commit 30e4522d2f
1 changed files with 39 additions and 0 deletions
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39
hotspot/src/share/vm/prims/whitebox.cpp
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@ -34,6 +34,7 @@
#include "memory/metadataFactory.hpp"
#include "memory/metaspaceShared.hpp"
#include "memory/universe.hpp"
#include "oops/constantPool.hpp"
#include "oops/oop.inline.hpp"
#include "prims/wbtestmethods/parserTests.hpp"
#include "prims/whitebox.hpp"
@ -1305,6 +1306,38 @@ WB_ENTRY(jlong, WB_GetConstantPool(JNIEnv* env, jobject wb, jclass klass))
return (jlong) ikh->constants();
WB_END
WB_ENTRY(jint, WB_GetConstantPoolCacheIndexTag(JNIEnv* env, jobject wb))
return ConstantPool::CPCACHE_INDEX_TAG;
WB_END
WB_ENTRY(jint, WB_GetConstantPoolCacheLength(JNIEnv* env, jobject wb, jclass klass))
instanceKlassHandle ikh(java_lang_Class::as_Klass(JNIHandles::resolve(klass)));
ConstantPool* cp = ikh->constants();
if (cp->cache() == NULL) {
return -1;
}
return cp->cache()->length();
WB_END
WB_ENTRY(jint, WB_ConstantPoolRemapInstructionOperandFromCache(JNIEnv* env, jobject wb, jclass klass, jint index))
instanceKlassHandle ikh(java_lang_Class::as_Klass(JNIHandles::resolve(klass)));
ConstantPool* cp = ikh->constants();
if (cp->cache() == NULL) {
THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(), "Constant pool does not have a cache");
}
jint cpci = index;
jint cpciTag = ConstantPool::CPCACHE_INDEX_TAG;
if (cpciTag > cpci || cpci >= cp->cache()->length() + cpciTag) {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Constant pool cache index is out of range");
}
jint cpi = cp->remap_instruction_operand_from_cache(cpci);
return cpi;
WB_END
WB_ENTRY(jint, WB_ConstantPoolEncodeIndyIndex(JNIEnv* env, jobject wb, jint index))
return ConstantPool::encode_invokedynamic_index(index);
WB_END
WB_ENTRY(void, WB_ClearInlineCaches(JNIEnv* env, jobject wb))
VM_ClearICs clear_ics;
VMThread::execute(&clear_ics);
@ -1620,6 +1653,12 @@ static JNINativeMethod methods[] = {
{CC"isMonitorInflated0", CC"(Ljava/lang/Object;)Z", (void*)&WB_IsMonitorInflated },
{CC"forceSafepoint", CC"()V", (void*)&WB_ForceSafepoint },
{CC"getConstantPool0", CC"(Ljava/lang/Class;)J", (void*)&WB_GetConstantPool },
{CC"getConstantPoolCacheIndexTag0", CC"()I", (void*)&WB_GetConstantPoolCacheIndexTag},
{CC"getConstantPoolCacheLength0", CC"(Ljava/lang/Class;)I", (void*)&WB_GetConstantPoolCacheLength},
{CC"remapInstructionOperandFromCPCache0",
CC"(Ljava/lang/Class;I)I", (void*)&WB_ConstantPoolRemapInstructionOperandFromCache},
{CC"encodeConstantPoolIndyIndex0",
CC"(I)I", (void*)&WB_ConstantPoolEncodeIndyIndex},
{CC"getMethodBooleanOption",
CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)Ljava/lang/Boolean;",
(void*)&WB_GetMethodBooleaneOption},