/*
* Return a new Object[] array with the contents of "args". We determine
* the number and types of values in "args" based on the method signature.
* Primitive types are boxed.
*
* Returns NULL if the method takes no arguments.
*
* The caller must call dvmReleaseTrackedAlloc() on the return value.
*
* On failure, returns with an appropriate exception raised.
*/
static ArrayObject* boxMethodArgs(const Method* method, const u4* args)
{
const char* desc = &method->shorty[1]; // [0] is the return type.
ArrayObject* argArray = NULL;
int argCount;
Object** argObjects;
bool failed = true;
/* count args */
argCount = dexProtoGetParameterCount(&method->prototype);
/* allocate storage */
argArray = dvmAllocArray(gDvm.classJavaLangObjectArray, argCount,
kObjectArrayRefWidth, ALLOC_DEFAULT);
if (argArray == NULL)
goto bail;
argObjects = (Object**) argArray->contents;
/*
* Fill in the array.
*/
int srcIndex = 0;
argCount = 0;
while (*desc != '\0') {
char descChar = *(desc++);
JValue value;
switch (descChar) {
case 'Z':
case 'C':
case 'F':
case 'B':
case 'S':
case 'I':
value.i = args[srcIndex++];
argObjects[argCount] = (Object*) dvmWrapPrimitive(value,
dvmFindPrimitiveClass(descChar));
/* argObjects is tracked, don't need to hold this too */
dvmReleaseTrackedAlloc(argObjects[argCount], NULL);
argCount++;
break;
case 'D':
case 'J':
value.j = dvmGetArgLong(args, srcIndex);
srcIndex += 2;
argObjects[argCount] = (Object*) dvmWrapPrimitive(value,
dvmFindPrimitiveClass(descChar));
dvmReleaseTrackedAlloc(argObjects[argCount], NULL);
argCount++;
break;
case '[':
case 'L':
argObjects[argCount++] = (Object*) args[srcIndex++];
break;
}
}
failed = false;
bail:
if (failed) {
dvmReleaseTrackedAlloc((Object*)argArray, NULL);
argArray = NULL;
}
return argArray;
}
/*
* Generate an array of StackTraceElement objects from the raw integer
* data encoded by dvmFillInStackTrace().
*
* "intVals" points to the first {method,pc} pair.
*
* The returned array is not added to the "local refs" list.
*/
ArrayObject* dvmGetStackTraceRaw(const int* intVals, int stackDepth)
{
ArrayObject* steArray = NULL;
int i;
/* init this if we haven't yet */
if (!dvmIsClassInitialized(gDvm.classJavaLangStackTraceElement))
dvmInitClass(gDvm.classJavaLangStackTraceElement);
/* allocate a StackTraceElement array */
steArray = dvmAllocArray(gDvm.classJavaLangStackTraceElementArray,
stackDepth, kObjectArrayRefWidth, ALLOC_DEFAULT);
if (steArray == NULL)
goto bail;
/*
* Allocate and initialize a StackTraceElement for each stack frame.
* We use the standard constructor to configure the object.
*/
for (i = 0; i < stackDepth; i++) {
Object* ste;
Method* meth;
StringObject* className;
StringObject* methodName;
StringObject* fileName;
int lineNumber, pc;
const char* sourceFile;
char* dotName;
ste = dvmAllocObject(gDvm.classJavaLangStackTraceElement,ALLOC_DEFAULT);
if (ste == NULL)
goto bail;
meth = (Method*) *intVals++;
pc = *intVals++;
if (pc == -1) // broken top frame?
lineNumber = 0;
else
lineNumber = dvmLineNumFromPC(meth, pc);
dotName = dvmDescriptorToDot(meth->clazz->descriptor);
className = dvmCreateStringFromCstr(dotName);
free(dotName);
methodName = dvmCreateStringFromCstr(meth->name);
sourceFile = dvmGetMethodSourceFile(meth);
if (sourceFile != NULL)
fileName = dvmCreateStringFromCstr(sourceFile);
else
fileName = NULL;
/*
* Invoke:
* public StackTraceElement(String declaringClass, String methodName,
* String fileName, int lineNumber)
* (where lineNumber==-2 means "native")
*/
JValue unused;
dvmCallMethod(dvmThreadSelf(), gDvm.methJavaLangStackTraceElement_init,
ste, &unused, className, methodName, fileName, lineNumber);
dvmReleaseTrackedAlloc(ste, NULL);
dvmReleaseTrackedAlloc((Object*) className, NULL);
dvmReleaseTrackedAlloc((Object*) methodName, NULL);
dvmReleaseTrackedAlloc((Object*) fileName, NULL);
if (dvmCheckException(dvmThreadSelf()))
goto bail;
dvmSetObjectArrayElement(steArray, i, ste);
}
bail:
dvmReleaseTrackedAlloc((Object*) steArray, NULL);
return steArray;
}