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8032970: Add stack size check methods to WhiteBox API

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Reviewed-by: twisti, kvn, iignatyev
This commit is contained in:
Kirill Shirokov 2014-05-24 00:04:21 +04:00 • committed by Igor Ignatyev
parent 71d4460883
commit 20674a667a
4 changed files with 138 additions and 1 deletions
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13
hotspot/src/share/vm/prims/whitebox.cpp
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@ -33,9 +33,11 @@
#include "prims/whitebox.hpp"
#include "prims/wbtestmethods/parserTests.hpp"
#include "runtime/thread.hpp"
#include "runtime/arguments.hpp"
#include "runtime/interfaceSupport.hpp"
#include "runtime/os.hpp"
#include "utilities/debug.hpp"
#include "utilities/macros.hpp"
#include "utilities/exceptions.hpp"
@ -576,6 +578,15 @@ WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jbo
WB_END
WB_ENTRY(jlong, WB_GetThreadStackSize(JNIEnv* env, jobject o))
return (jlong) Thread::current()->stack_size();
WB_END
WB_ENTRY(jlong, WB_GetThreadRemainingStackSize(JNIEnv* env, jobject o))
JavaThread* t = JavaThread::current();
return (jlong) t->stack_available(os::current_stack_pointer()) - (jlong) StackShadowPages * os::vm_page_size();
WB_END
//Some convenience methods to deal with objects from java
int WhiteBox::offset_for_field(const char* field_name, oop object,
Symbol* signature_symbol) {
@ -690,6 +701,8 @@ static JNINativeMethod methods[] = {
{CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures },
{CC"getNMethod", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;",
(void*)&WB_GetNMethod },
{CC"getThreadStackSize", CC"()J", (void*)&WB_GetThreadStackSize },
{CC"getThreadRemainingStackSize", CC"()J", (void*)&WB_GetThreadRemainingStackSize },
};
#undef CC