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7148488: Whitebox tests for the Diagnostic Framework Parser

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Reviewed-by: brutisso, sla, mgerdin
This commit is contained in:
Nils Loodin 2012-03-15 13:37:13 +01:00
parent 3693f0fe43
commit 2c07f4154e
16 changed files with 515 additions and 13 deletions
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66
hotspot/src/share/vm/prims/whitebox.cpp
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@ -24,11 +24,14 @@
#include "precompiled.hpp"
#include "jni.h"
#include "memory/universe.hpp"
#include "oops/oop.inline.hpp"
#include "classfile/symbolTable.hpp"
#include "prims/whitebox.hpp"
#include "prims/wbtestmethods/parserTests.hpp"
#include "runtime/interfaceSupport.hpp"
#include "runtime/os.hpp"
#include "utilities/debug.hpp"
@ -41,13 +44,6 @@
bool WhiteBox::_used = false;
// Entry macro to transition from JNI to VM state.
#define WB_ENTRY(result_type, header) JNI_ENTRY(result_type, header)
#define WB_END JNI_END
// Definitions of functions exposed via Whitebox API
WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj))
return (jlong)(void*)JNIHandles::resolve(obj);
WB_END
@ -81,11 +77,63 @@ WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o))
WB_END
#endif // !SERIALGC
//Some convenience methods to deal with objects from java
int WhiteBox::offset_for_field(const char* field_name, oop object,
Symbol* signature_symbol) {
assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid");
Thread* THREAD = Thread::current();
//Get the class of our object
klassOop arg_klass = object->klass();
//Turn it into an instance-klass
instanceKlass* ik = instanceKlass::cast(arg_klass);
//Create symbols to look for in the class
TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name),
THREAD);
//To be filled in with an offset of the field we're looking for
fieldDescriptor fd;
klassOop res = ik->find_field(name_symbol, signature_symbol, &fd);
if (res == NULL) {
tty->print_cr("Invalid layout of %s at %s", ik->external_name(),
name_symbol->as_C_string());
fatal("Invalid layout of preloaded class");
}
//fetch the field at the offset we've found
int dest_offset = fd.offset();
return dest_offset;
}
const char* WhiteBox::lookup_jstring(const char* field_name, oop object) {
int offset = offset_for_field(field_name, object,
vmSymbols::string_signature());
oop string = object->obj_field(offset);
const char* ret = java_lang_String::as_utf8_string(string);
return ret;
}
bool WhiteBox::lookup_bool(const char* field_name, oop object) {
int offset =
offset_for_field(field_name, object, vmSymbols::bool_signature());
bool ret = (object->bool_field(offset) == JNI_TRUE);
return ret;
}
#define CC (char*)
static JNINativeMethod methods[] = {
{CC"getObjectAddress", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectAddress },
{CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize },
{CC "parseCommandLine",
CC "(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;",
(void*) &WB_ParseCommandLine
},
#ifndef SERIALGC
{CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark},
{CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous },