/*
* static boolean isDebuggingEnabled()
*
* Returns "true" if debugging is enabled.
*/
static void Dalvik_dalvik_system_VMDebug_isDebuggingEnabled(const u4* args,
JValue* pResult)
{
UNUSED_PARAMETER(args);
RETURN_BOOLEAN(gDvm.jdwpConfigured);
}
/*
* static boolean isDebuggerConnected()
*
* Returns "true" if a debugger is attached.
*/
static void Dalvik_dalvik_system_VMDebug_isDebuggerConnected(const u4* args,
JValue* pResult)
{
UNUSED_PARAMETER(args);
RETURN_BOOLEAN(dvmDbgIsDebuggerConnected());
}
/*
* public static boolean getRecentAllocationStatus()
*
* Returns "true" if allocation tracking is enabled.
*/
static void
Dalvik_org_apache_harmony_dalvik_ddmc_DdmVmInternal_getRecentAllocationStatus(
const u4* args, JValue* pResult)
{
UNUSED_PARAMETER(args);
RETURN_BOOLEAN(gDvm.allocRecords != NULL);
}
/*
* public static native boolean isInvoke(int opcode);
*/
static void Dalvik_dalvik_bytecode_OpcodeInfo_isInvoke(const u4 *args,
JValue *pResult) {
Opcode opcode = static_cast<Opcode>(args[0]);
int flags = dexGetFlagsFromOpcode(opcode);
bool result = (flags & kInstrInvoke) != 0;
RETURN_BOOLEAN(result);
}
/*
* static boolean isMethodTracingActive()
*
* Determine whether method tracing is currently active.
*/
static void Dalvik_dalvik_system_VMDebug_isMethodTracingActive(const u4* args,
JValue* pResult)
{
UNUSED_PARAMETER(args);
RETURN_BOOLEAN(dvmIsMethodTraceActive());
}
/*
* public static int heapInfoNotify(int what)
*
* Enable DDM heap notifications.
*/
static void Dalvik_org_apache_harmony_dalvik_ddmc_DdmVmInternal_heapInfoNotify(
const u4* args, JValue* pResult)
{
int when = args[0];
bool ret;
ret = dvmDdmHandleHpifChunk(when);
RETURN_BOOLEAN(ret);
}
/*
* static boolean isAnnotationPresent(
* Class declaringClass, int slot, Class annotationType);
*/
static void Dalvik_java_lang_reflect_Method_isAnnotationPresent(const u4* args,
JValue* pResult)
{
ClassObject* clazz = (ClassObject*) args[0];
int slot = args[1];
ClassObject* annotationClazz = (ClassObject*) args[2];
Method* meth = dvmSlotToMethod(clazz, slot);
RETURN_BOOLEAN(dvmIsMethodAnnotationPresent(clazz, meth, annotationClazz));
}
/*
* public static boolean heapSegmentNotify(int when, int what, bool native)
*
* Enable DDM heap notifications.
*/
static void
Dalvik_org_apache_harmony_dalvik_ddmc_DdmVmInternal_heapSegmentNotify(
const u4* args, JValue* pResult)
{
int when = args[0]; // 0=never (off), 1=during GC
int what = args[1]; // 0=merged objects, 1=distinct objects
bool native = (args[2] != 0); // false=virtual heap, true=native heap
bool ret;
ret = dvmDdmHandleHpsgNhsgChunk(when, what, native);
RETURN_BOOLEAN(ret);
}
/*
* static boolean interrupted()
*
* Determine if the current thread has been interrupted. Clears the flag.
*/
static void Dalvik_java_lang_VMThread_interrupted(const u4* args,
JValue* pResult)
{
Thread* self = dvmThreadSelf();
bool interrupted;
UNUSED_PARAMETER(args);
interrupted = self->interrupted;
self->interrupted = false;
RETURN_BOOLEAN(interrupted);
}
/*
* public native boolean compareAndSwapInt(Object obj, long offset,
* int expectedValue, int newValue);
*/
static void Dalvik_sun_misc_Unsafe_compareAndSwapInt(const u4 *args,
JValue *pResult) {
// We ignore the this pointer in args[0].
Object *obj = (Object *) args[1];
s8 offset = GET_ARG_LONG(args, 2);
s4 expectedValue = args[4];
s4 newValue = args[5];
volatile int32_t *address = (volatile int32_t *) (((u1 *) obj) + offset);
// Note: android_atomic_release_cas() returns 0 on success, not failure.
int result = android_atomic_release_cas(expectedValue, newValue, address);
RETURN_BOOLEAN(result == 0);
}
/*
* public native boolean compareAndSwapLong(Object obj, long offset,
* long expectedValue, long newValue);
*/
static void Dalvik_sun_misc_Unsafe_compareAndSwapLong(const u4 *args,
JValue *pResult) {
// We ignore the this pointer in args[0].
Object *obj = (Object *) args[1];
s8 offset = GET_ARG_LONG(args, 2);
s8 expectedValue = GET_ARG_LONG(args, 4);
s8 newValue = GET_ARG_LONG(args, 6);
volatile int64_t *address = (volatile int64_t *) (((u1 *) obj) + offset);
// Note: android_atomic_cmpxchg() returns 0 on success, not failure.
int result =
dvmQuasiAtomicCas64(expectedValue, newValue, address);
RETURN_BOOLEAN(result == 0);
}
/*
* public native boolean compareAndSwapObject(Object obj, long offset,
* Object expectedValue, Object newValue);
*/
static void Dalvik_sun_misc_Unsafe_compareAndSwapObject(const u4 *args,
JValue *pResult) {
// We ignore the this pointer in args[0].
Object *obj = (Object *) args[1];
s8 offset = GET_ARG_LONG(args, 2);
Object *expectedValue = (Object *) args[4];
Object *newValue = (Object *) args[5];
int32_t *address = (int32_t *) (((u1 *) obj) + offset);
// Note: android_atomic_cmpxchg() returns 0 on success, not failure.
int result = android_atomic_release_cas((int32_t) expectedValue,
(int32_t) newValue, address);
dvmWriteBarrierField(obj, address);
RETURN_BOOLEAN(result == 0);
}
/*
* public static boolean isDexOptNeeded(String apkName)
* throws FileNotFoundException, IOException
*
* Returns true if the VM believes that the apk/jar file is out of date
* and should be passed through "dexopt" again.
*
* @param fileName the absolute path to the apk/jar file to examine.
* @return true if dexopt should be called on the file, false otherwise.
* @throws java.io.FileNotFoundException if fileName is not readable,
* not a file, or not present.
* @throws java.io.IOException if fileName is not a valid apk/jar file or
* if problems occur while parsing it.
* @throws java.lang.NullPointerException if fileName is null.
* @throws dalvik.system.StaleDexCacheError if the optimized dex file
* is stale but exists on a read-only partition.
*/
static void Dalvik_dalvik_system_DexFile_isDexOptNeeded(const u4* args,
JValue* pResult)
{
StringObject* nameObj = (StringObject*) args[0];
char* name;
DexCacheStatus status;
int result;
name = dvmCreateCstrFromString(nameObj);
if (name == NULL) {
dvmThrowException("Ljava/lang/NullPointerException;", NULL);
RETURN_VOID();
}
if (access(name, R_OK) != 0) {
dvmThrowException("Ljava/io/FileNotFoundException;", name);
free(name);
RETURN_VOID();
}
status = dvmDexCacheStatus(name);
LOGV("dvmDexCacheStatus(%s) returned %d\n", name, status);
result = true;
switch (status) {
default: //FALLTHROUGH
case DEX_CACHE_BAD_ARCHIVE:
dvmThrowException("Ljava/io/IOException;", name);
result = -1;
break;
case DEX_CACHE_OK:
result = false;
break;
case DEX_CACHE_STALE:
result = true;
break;
case DEX_CACHE_STALE_ODEX:
dvmThrowException("Ldalvik/system/StaleDexCacheError;", name);
result = -1;
break;
}
free(name);
if (result >= 0) {
RETURN_BOOLEAN(result);
} else {
RETURN_VOID();
}
}
/*
* public native boolean trackExternalAllocation(long size)
*
* Asks the VM if <size> bytes can be allocated in an external heap.
* This information may be used to limit the amount of memory available
* to Dalvik threads. Returns false if the VM would rather that the caller
* did not allocate that much memory. If the call returns false, the VM
* will not update its internal counts.
*/
static void Dalvik_dalvik_system_VMRuntime_trackExternalAllocation(
const u4* args, JValue* pResult)
{
s8 longSize = GET_ARG_LONG(args, 1);
/* Fit in 32 bits. */
if (longSize < 0) {
dvmThrowException("Ljava/lang/IllegalArgumentException;",
"size must be positive");
RETURN_VOID();
} else if (longSize > INT_MAX) {
dvmThrowException("Ljava/lang/UnsupportedOperationException;",
"size must fit in 32 bits");
RETURN_VOID();
}
RETURN_BOOLEAN(dvmTrackExternalAllocation((size_t)longSize));
}
/*
* boolean isInterrupted()
*
* Determine if the specified thread has been interrupted. Does not clear
* the flag.
*/
static void Dalvik_java_lang_VMThread_isInterrupted(const u4* args,
JValue* pResult)
{
Object* thisPtr = (Object*) args[0];
Thread* thread;
bool interrupted;
dvmLockThreadList(NULL);
thread = dvmGetThreadFromThreadObject(thisPtr);
if (thread != NULL)
interrupted = thread->interrupted;
else
interrupted = false;
dvmUnlockThreadList();
RETURN_BOOLEAN(interrupted);
}
/*
* boolean holdsLock(Object object)
*
* Returns whether the current thread has a monitor lock on the specific
* object.
*/
static void Dalvik_java_lang_VMThread_holdsLock(const u4* args, JValue* pResult)
{
Object* thisPtr = (Object*) args[0];
Object* object = (Object*) args[1];
Thread* thread;
if (object == NULL) {
dvmThrowNullPointerException("object == null");
RETURN_VOID();
}
dvmLockThreadList(NULL);
thread = dvmGetThreadFromThreadObject(thisPtr);
int result = dvmHoldsLock(thread, object);
dvmUnlockThreadList();
RETURN_BOOLEAN(result);
}
jbool fastiva_Dalvik_dalvik_system_VMRuntime_isDebuggerActive(dalvik_system_VMRuntime_p self) {
#endif
RETURN_BOOLEAN(gDvm.debuggerActive || gDvm.nativeDebuggerActive);
}
static void Dalvik_dalvik_system_VMRuntime_isDebuggerActive(
const u4* args, JValue* pResult)
{
RETURN_BOOLEAN(gDvm.debuggerActive || gDvm.nativeDebuggerActive);
}
/*
* static boolean cacheRegisterMap(String classAndMethodDescr)
*
* If the specified class is loaded, and the named method exists, ensure
* that the method's register map is ready for use. If the class/method
* cannot be found, nothing happens.
*
* This can improve the zygote's sharing of compressed register maps. Do
* this after class preloading.
*
* Returns true if the register map is cached and ready, either as a result
* of this call or earlier activity. Returns false if the class isn't loaded,
* if the method couldn't be found, or if the method has no register map.
*
* (Uncomment logs in dvmGetExpandedRegisterMap0() to gather stats.)
*/
static void Dalvik_dalvik_system_VMDebug_cacheRegisterMap(const u4* args,
JValue* pResult)
{
StringObject* classAndMethodDescStr = (StringObject*) args[0];
ClassObject* clazz;
bool result = false;
if (classAndMethodDescStr == NULL) {
dvmThrowNullPointerException("classAndMethodDesc == null");
RETURN_VOID();
}
char* classAndMethodDesc = NULL;
/*
* Pick the string apart. We have a local copy, so just modify it
* in place.
*/
classAndMethodDesc = dvmCreateCstrFromString(classAndMethodDescStr);
char* methodName = strchr(classAndMethodDesc, '.');
if (methodName == NULL) {
dvmThrowRuntimeException("method name not found in string");
RETURN_VOID();
}
*methodName++ = '\0';
char* methodDescr = strchr(methodName, ':');
if (methodDescr == NULL) {
dvmThrowRuntimeException("method descriptor not found in string");
RETURN_VOID();
}
*methodDescr++ = '\0';
//ALOGD("GOT: %s %s %s", classAndMethodDesc, methodName, methodDescr);
/*
* Find the class, but only if it's already loaded.
*/
clazz = dvmLookupClass(classAndMethodDesc, NULL, false);
if (clazz == NULL) {
ALOGD("Class %s not found in bootstrap loader", classAndMethodDesc);
goto bail;
}
Method* method;
/*
* Find the method, which could be virtual or direct, defined directly
* or inherited.
*/
if (methodName[0] == '<') {
/*
* Constructor or class initializer. Only need to examine the
* "direct" list, and don't need to search up the class hierarchy.
*/
method = dvmFindDirectMethodByDescriptor(clazz, methodName,
methodDescr);
} else {
/*
* Try both lists, and scan up the tree.
*/
method = dvmFindVirtualMethodHierByDescriptor(clazz, methodName,
methodDescr);
if (method == NULL) {
method = dvmFindDirectMethodHierByDescriptor(clazz, methodName,
methodDescr);
}
}
if (method != NULL) {
/*
* Got it. See if there's a register map here.
*/
const RegisterMap* pMap;
pMap = dvmGetExpandedRegisterMap(method);
if (pMap == NULL) {
ALOGV("No map for %s.%s %s",
classAndMethodDesc, methodName, methodDescr);
} else {
ALOGV("Found map %s.%s %s",
classAndMethodDesc, methodName, methodDescr);
result = true;
}
} else {
ALOGV("Unable to find %s.%s %s",
classAndMethodDesc, methodName, methodDescr);
}
bail:
free(classAndMethodDesc);
RETURN_BOOLEAN(result);
}
/*
* private static native boolean VMSupportsCS8();
*/
static void Dalvik_java_util_concurrent_atomic_AtomicLong_VMSupportsCS8(
const u4* args, JValue* pResult)
{
UNUSED_PARAMETER(args);
RETURN_BOOLEAN(1);
}
