/*
* Get the named method.
*/
Object* dvmGetDeclaredConstructorOrMethod(ClassObject* clazz,
StringObject* nameObj, ArrayObject* args)
{
Object* result = NULL;
DexStringCache targetDescriptorCache;
char* name;
const char* targetDescriptor;
dexStringCacheInit(&targetDescriptorCache);
name = dvmCreateCstrFromString(nameObj);
createTargetDescriptor(args, &targetDescriptorCache);
targetDescriptor = targetDescriptorCache.value;
result = findConstructorOrMethodInArray(clazz->directMethodCount,
clazz->directMethods, name, targetDescriptor);
if (result == NULL) {
result = findConstructorOrMethodInArray(clazz->virtualMethodCount,
clazz->virtualMethods, name, targetDescriptor);
}
free(name);
dexStringCacheRelease(&targetDescriptorCache);
return result;
}
int
hprofStartup_StackFrame()
{
HashIter iter;
/* Cache the string "<unknown>" for use when the source file is
* unknown.
*/
hprofLookupStringId("<unknown>");
/* This will be called when a GC begins. */
for (dvmHashIterBegin(gStackFrameHashTable, &iter);
!dvmHashIterDone(&iter);
dvmHashIterNext(&iter)) {
StackFrameEntry *stackFrameEntry;
const Method *method;
/* Clear the 'live' bit at the start of the GC pass. */
stackFrameEntry = (StackFrameEntry *) dvmHashIterData(&iter);
stackFrameEntry->live = 0;
method = stackFrameEntry->frame.method;
if (method == NULL) {
continue;
}
/* Make sure the method name, descriptor, and source file are in
* the string table, and that the method class is in the class
* table. This is needed because strings and classes will be dumped
* before stack frames.
*/
if (method->name) {
hprofLookupStringId(method->name);
}
DexStringCache cache;
const char* descriptor;
dexStringCacheInit(&cache);
descriptor = dexProtoGetMethodDescriptor(&method->prototype, &cache);
hprofLookupStringId(descriptor);
dexStringCacheRelease(&cache);
const char* sourceFile = dvmGetMethodSourceFile(method);
if (sourceFile) {
hprofLookupStringId(sourceFile);
}
if (method->clazz) {
hprofLookupClassId(method->clazz);
}
}
return 0;
}
/*
* Create a new java/lang/reflect/Method object, using the contents of
* "meth" to construct it.
*
* The spec doesn't specify the constructor. We're going to use the
* one from our existing class libs:
*
* private Method(Class declaring, Class[] paramTypes, Class[] exceptTypes,
* Class returnType, String name, int slot)
*
* The caller must call dvmReleaseTrackedAlloc() on the result.
*/
Object* dvmCreateReflectMethodObject(const Method* meth)
{
Object* result = NULL;
ArrayObject* params = NULL;
ArrayObject* exceptions = NULL;
StringObject* nameObj = NULL;
Object* methObj;
ClassObject* returnType;
DexStringCache mangle;
char* cp;
int slot, method_idx;
if (dvmCheckException(dvmThreadSelf())) {
ALOGW("WARNING: dvmCreateReflectMethodObject called with "
"exception pending");
return NULL;
}
dexStringCacheInit(&mangle);
/* parent should guarantee init so we don't have to check on every call */
assert(dvmIsClassInitialized(gDvm.classJavaLangReflectMethod));
methObj = dvmAllocObject(gDvm.classJavaLangReflectMethod, ALLOC_DEFAULT);
if (methObj == NULL)
goto bail;
/*
* Convert the signature string into an array of classes representing
* the arguments, and a class for the return type.
*/
cp = dvmCopyDescriptorStringFromMethod(meth, &mangle);
params = convertSignatureToClassArray(&cp, meth->clazz);
if (params == NULL)
goto bail;
assert(*cp == ')');
cp++;
returnType = convertSignaturePartToClass(&cp, meth->clazz);
if (returnType == NULL)
goto bail;
/*
* Create an array with one entry for every exception that the class
* is declared to throw.
*/
exceptions = dvmGetMethodThrows(meth);
if (dvmCheckException(dvmThreadSelf()))
goto bail;
/* method name */
nameObj = dvmCreateStringFromCstr(meth->name);
if (nameObj == NULL)
goto bail;
slot = methodToSlot(meth);
method_idx = dvmGetMethodIdx(meth);
JValue unused;
dvmCallMethod(dvmThreadSelf(), gDvm.methJavaLangReflectMethod_init,
methObj, &unused, meth->clazz, params, exceptions, returnType,
nameObj, slot, method_idx);
if (dvmCheckException(dvmThreadSelf())) {
ALOGD("Method class init threw exception");
goto bail;
}
result = methObj;
bail:
dexStringCacheRelease(&mangle);
if (result == NULL) {
assert(dvmCheckException(dvmThreadSelf()));
}
dvmReleaseTrackedAlloc((Object*) nameObj, NULL);
dvmReleaseTrackedAlloc((Object*) params, NULL);
dvmReleaseTrackedAlloc((Object*) exceptions, NULL);
if (result == NULL)
dvmReleaseTrackedAlloc(methObj, NULL);
return result;
}
/*
* Create a new java/lang/reflect/Constructor object, using the contents of
* "meth" to construct it.
*
* The spec doesn't specify the constructor. We're going to use the
* one from our existing class libs:
*
* private Constructor (Class declaringClass, Class[] ptypes, Class[] extypes,
* int slot)
*/
static Object* createConstructorObject(Method* meth)
{
Object* result = NULL;
ArrayObject* params = NULL;
ArrayObject* exceptions = NULL;
Object* consObj;
DexStringCache mangle;
char* cp;
int slot, method_idx;
dexStringCacheInit(&mangle);
/* parent should guarantee init so we don't have to check on every call */
assert(dvmIsClassInitialized(gDvm.classJavaLangReflectConstructor));
consObj = dvmAllocObject(gDvm.classJavaLangReflectConstructor,
ALLOC_DEFAULT);
if (consObj == NULL)
goto bail;
/*
* Convert the signature string into an array of classes representing
* the arguments.
*/
cp = dvmCopyDescriptorStringFromMethod(meth, &mangle);
params = convertSignatureToClassArray(&cp, meth->clazz);
if (params == NULL)
goto bail;
assert(*cp == ')');
assert(*(cp+1) == 'V');
/*
* Create an array with one entry for every exception that the class
* is declared to throw.
*/
exceptions = dvmGetMethodThrows(meth);
if (dvmCheckException(dvmThreadSelf()))
goto bail;
slot = methodToSlot(meth);
method_idx = dvmGetMethodIdx(meth);
JValue unused;
dvmCallMethod(dvmThreadSelf(), gDvm.methJavaLangReflectConstructor_init,
consObj, &unused, meth->clazz, params, exceptions, slot, method_idx);
if (dvmCheckException(dvmThreadSelf())) {
ALOGD("Constructor class init threw exception");
goto bail;
}
result = consObj;
bail:
dexStringCacheRelease(&mangle);
dvmReleaseTrackedAlloc((Object*) params, NULL);
dvmReleaseTrackedAlloc((Object*) exceptions, NULL);
if (result == NULL) {
assert(dvmCheckException(dvmThreadSelf()));
dvmReleaseTrackedAlloc(consObj, NULL);
}
/* caller must dvmReleaseTrackedAlloc(result) */
return result;
}
int
hprofDumpStackFrames(hprof_context_t *ctx)
{
HashIter iter;
hprof_record_t *rec = &ctx->curRec;
dvmHashTableLock(gStackFrameHashTable);
for (dvmHashIterBegin(gStackFrameHashTable, &iter);
!dvmHashIterDone(&iter);
dvmHashIterNext(&iter))
{
const StackFrameEntry *stackFrameEntry;
const Method *method;
int pc;
const char *sourceFile;
ClassObject *clazz;
int lineNum;
hprofStartNewRecord(ctx, HPROF_TAG_STACK_FRAME, HPROF_TIME);
stackFrameEntry = (const StackFrameEntry *) dvmHashIterData(&iter);
assert(stackFrameEntry != NULL);
method = stackFrameEntry->frame.method;
pc = stackFrameEntry->frame.pc;
sourceFile = dvmGetMethodSourceFile(method);
if (sourceFile == NULL) {
sourceFile = "<unknown>";
lineNum = 0;
} else {
lineNum = dvmLineNumFromPC(method, pc);
}
clazz = (ClassObject *) hprofLookupClassId(method->clazz);
/* STACK FRAME format:
*
* ID: ID for this stack frame
* ID: ID for the method name
* ID: ID for the method descriptor
* ID: ID for the source file name
* u4: class serial number
* u4: line number, 0 = no line information
*
* We use the address of the stack frame as its ID.
*/
DexStringCache cache;
const char* descriptor;
dexStringCacheInit(&cache);
descriptor = dexProtoGetMethodDescriptor(&method->prototype, &cache);
hprofAddIdToRecord(rec, (u4) stackFrameEntry);
hprofAddIdToRecord(rec, hprofLookupStringId(method->name));
hprofAddIdToRecord(rec, hprofLookupStringId(descriptor));
hprofAddIdToRecord(rec, hprofLookupStringId(sourceFile));
hprofAddU4ToRecord(rec, (u4) clazz->serialNumber);
hprofAddU4ToRecord(rec, (u4) lineNum);
dexStringCacheRelease(&cache);
}
dvmHashTableUnlock(gStackFrameHashTable);
return 0;
}
