/*
* Show a relatively human-readable message describing the failure to
* resolve a class.
*
* TODO: this is somewhat misleading when resolution fails because of
* illegal access rather than nonexistent class.
*/
void dvmLogUnableToResolveClass(const char* missingClassDescr,
const Method* meth)
{
if (gDvm.optimizing)
return;
char* dotMissingClass = dvmDescriptorToDot(missingClassDescr);
char* dotFromClass = dvmDescriptorToDot(meth->clazz->descriptor);
//char* methodDescr = dexProtoCopyMethodDescriptor(&meth->prototype);
LOGE("Could not find class '%s', referenced from method %s.%s\n",
dotMissingClass, dotFromClass, meth->name/*, methodDescr*/);
free(dotMissingClass);
free(dotFromClass);
//free(methodDescr);
}
/*
* Throw the named exception using the dotted form of the class
* descriptor as the exception message, and with the specified cause.
*/
void dvmThrowChainedExceptionWithClassMessage(const char* exceptionDescriptor,
const char* messageDescriptor, Object* cause)
{
char* message = dvmDescriptorToDot(messageDescriptor);
dvmThrowChainedException(exceptionDescriptor, message, cause);
free(message);
}
/*
* private static String[] getClassNameList(int cookie)
*
* Returns a String array that holds the names of all classes in the
* specified DEX file.
*/
static void Dalvik_dalvik_system_DexFile_getClassNameList(const u4* args,
JValue* pResult)
{
int cookie = args[0];
DexOrJar* pDexOrJar = (DexOrJar*) cookie;
DvmDex* pDvmDex;
DexFile* pDexFile;
ArrayObject* stringArray;
Thread* self = dvmThreadSelf();
if (!validateCookie(cookie))
RETURN_VOID();
if (pDexOrJar->isDex)
pDvmDex = dvmGetRawDexFileDex(pDexOrJar->pRawDexFile);
else
pDvmDex = dvmGetJarFileDex(pDexOrJar->pJarFile);
assert(pDvmDex != NULL);
pDexFile = pDvmDex->pDexFile;
int count = pDexFile->pHeader->classDefsSize;
stringArray = dvmAllocObjectArray(gDvm.classJavaLangString, count,
ALLOC_DEFAULT);
if (stringArray == NULL) {
/* probably OOM */
ALOGD("Failed allocating array of %d strings\n", count);
assert(dvmCheckException(self));
RETURN_VOID();
}
int i;
for (i = 0; i < count; i++) {
const DexClassDef* pClassDef = dexGetClassDef(pDexFile, i);
const char* descriptor =
dexStringByTypeIdx(pDexFile, pClassDef->classIdx);
char* className = dvmDescriptorToDot(descriptor);
StringObject* str = dvmCreateStringFromCstr(className);
dvmSetObjectArrayElement(stringArray, i, (Object *)str);
dvmReleaseTrackedAlloc((Object *)str, self);
free(className);
}
dvmReleaseTrackedAlloc((Object*)stringArray, self);
RETURN_PTR(stringArray);
}
/*
* private static String[] getClassNameList(int cookie)
*
* Returns a String array that holds the names of all classes in the
* specified DEX file.
*/
static void Dalvik_dalvik_system_DexFile_getClassNameList(const u4* args,
JValue* pResult)
{
int cookie = args[0];
DexOrJar* pDexOrJar = (DexOrJar*) cookie;
DvmDex* pDvmDex;
DexFile* pDexFile;
ArrayObject* stringArray;
if (!validateCookie(cookie))
RETURN_VOID();
if (pDexOrJar->isDex)
pDvmDex = dvmGetRawDexFileDex(pDexOrJar->pRawDexFile);
else
pDvmDex = dvmGetJarFileDex(pDexOrJar->pJarFile);
assert(pDvmDex != NULL);
pDexFile = pDvmDex->pDexFile;
int count = pDexFile->pHeader->classDefsSize;
stringArray = dvmAllocObjectArray(gDvm.classJavaLangString, count,
ALLOC_DEFAULT);
if (stringArray == NULL)
RETURN_VOID(); // should be an OOM pending
StringObject** contents = (StringObject**) stringArray->contents;
int i;
for (i = 0; i < count; i++) {
const DexClassDef* pClassDef = dexGetClassDef(pDexFile, i);
const char* descriptor =
dexStringByTypeIdx(pDexFile, pClassDef->classIdx);
char* className = dvmDescriptorToDot(descriptor);
contents[i] = dvmCreateStringFromCstr(className, ALLOC_DEFAULT);
dvmReleaseTrackedAlloc((Object*) contents[i], NULL);
free(className);
}
dvmReleaseTrackedAlloc((Object*)stringArray, NULL);
RETURN_PTR(stringArray);
}
/*
* Dump the contents of a raw stack trace to the log.
*/
void dvmLogRawStackTrace(const int* intVals, int stackDepth)
{
int i;
/*
* Run through the array of stack frame data.
*/
for (i = 0; i < stackDepth; i++) {
Method* meth;
int lineNumber, pc;
const char* sourceFile;
char* dotName;
meth = (Method*) *intVals++;
pc = *intVals++;
if (pc == -1) // broken top frame?
lineNumber = 0;
else
lineNumber = dvmLineNumFromPC(meth, pc);
// probably don't need to do this, but it looks nicer
dotName = dvmDescriptorToDot(meth->clazz->descriptor);
if (dvmIsNativeMethod(meth)) {
LOGI("\tat %s.%s(Native Method)\n", dotName, meth->name);
} else {
LOGI("\tat %s.%s(%s:%d)\n",
dotName, meth->name, dvmGetMethodSourceFile(meth),
dvmLineNumFromPC(meth, pc));
}
free(dotName);
sourceFile = dvmGetMethodSourceFile(meth);
}
}
/*
* Dump stack frames, starting from the specified frame and moving down.
*
* Each frame holds a pointer to the currently executing method, and the
* saved program counter from the caller ("previous" frame). This means
* we don't have the PC for the current method on the stack, which is
* pretty reasonable since it's in the "PC register" for the VM. Because
* exceptions need to show the correct line number we actually *do* have
* an updated version in the fame's "xtra.currentPc", but it's unreliable.
*
* Note "framePtr" could be NULL in rare circumstances.
*/
static void dumpFrames(const DebugOutputTarget* target, void* framePtr,
Thread* thread)
{
const StackSaveArea* saveArea;
const Method* method;
int checkCount = 0;
const u2* currentPc = NULL;
bool first = true;
/*
* The "currentPc" is updated whenever we execute an instruction that
* might throw an exception. Show it here.
*/
if (framePtr != NULL && !dvmIsBreakFrame(framePtr)) {
saveArea = SAVEAREA_FROM_FP(framePtr);
if (saveArea->xtra.currentPc != NULL)
currentPc = saveArea->xtra.currentPc;
}
while (framePtr != NULL) {
saveArea = SAVEAREA_FROM_FP(framePtr);
method = saveArea->method;
if (dvmIsBreakFrame(framePtr)) {
//dvmPrintDebugMessage(target, " (break frame)\n");
} else {
int relPc;
if (currentPc != NULL)
relPc = currentPc - saveArea->method->insns;
else
relPc = -1;
char* className = dvmDescriptorToDot(method->clazz->descriptor);
if (dvmIsNativeMethod(method))
dvmPrintDebugMessage(target,
" at %s.%s(Native Method)\n", className, method->name);
else {
dvmPrintDebugMessage(target,
" at %s.%s(%s:%s%d)\n",
className, method->name, dvmGetMethodSourceFile(method),
(relPc >= 0 && first) ? "~" : "",
relPc < 0 ? -1 : dvmLineNumFromPC(method, relPc));
}
free(className);
if (first) {
/*
* Decorate WAIT and MONITOR threads with some detail on
* the first frame.
*
* warning: wait status not stable, even in suspend
*/
if (thread->status == THREAD_WAIT ||
thread->status == THREAD_TIMED_WAIT)
{
Monitor* mon = thread->waitMonitor;
Object* obj = dvmGetMonitorObject(mon);
if (obj != NULL) {
className = dvmDescriptorToDot(obj->clazz->descriptor);
dvmPrintDebugMessage(target,
" - waiting on <%p> (a %s)\n", obj, className);
free(className);
}
} else if (thread->status == THREAD_MONITOR) {
Object* obj;
Thread* owner;
if (extractMonitorEnterObject(thread, &obj, &owner)) {
className = dvmDescriptorToDot(obj->clazz->descriptor);
if (owner != NULL) {
char* threadName = dvmGetThreadName(owner);
dvmPrintDebugMessage(target,
" - waiting to lock <%p> (a %s) held by threadid=%d (%s)\n",
obj, className, owner->threadId, threadName);
free(threadName);
} else {
dvmPrintDebugMessage(target,
" - waiting to lock <%p> (a %s) held by ???\n",
obj, className);
}
free(className);
}
}
}
}
/*
* Get saved PC for previous frame. There's no savedPc in a "break"
* frame, because that represents native or interpreted code
* invoked by the VM. The saved PC is sitting in the "PC register",
* a local variable on the native stack.
*/
currentPc = saveArea->savedPc;
first = false;
if (saveArea->prevFrame != NULL && saveArea->prevFrame <= framePtr) {
LOGW("Warning: loop in stack trace at frame %d (%p -> %p)\n",
checkCount, framePtr, saveArea->prevFrame);
break;
}
framePtr = saveArea->prevFrame;
checkCount++;
if (checkCount > 300) {
dvmPrintDebugMessage(target,
" ***** printed %d frames, not showing any more\n",
checkCount);
break;
}
}
dvmPrintDebugMessage(target, "\n");
}
static int
getPrettyClassNameId(const char *descriptor)
{
hprof_string_id classNameId;
char *dotName = dvmDescriptorToDot(descriptor);
/* Hprof suggests that array class names be converted from, e.g.,
* "[[[I" to "int[][][]" and "[Lorg.blort.Spaz;" to
* "org.blort.Spaz[]".
*/
if (dotName[0] == '[') {
const char *c;
char *newName;
char *nc;
size_t dim;
size_t newLen;
c = dotName;
dim = 0;
while (*c == '[') {
dim++;
c++;
}
if (*c == 'L') {
c++;
} else {
/* It's a primitive type; we should use a pretty name.
* Add semicolons to make all strings have the format
* of object class names.
*/
switch (*c) {
case 'Z': c = "boolean;"; break;
case 'C': c = "char;"; break;
case 'F': c = "float;"; break;
case 'D': c = "double;"; break;
case 'B': c = "byte;"; break;
case 'S': c = "short;"; break;
case 'I': c = "int;"; break;
case 'J': c = "long;"; break;
default: assert(false); c = "UNKNOWN;"; break;
}
}
/* We have a string of the form "name;" and
* we want to replace the semicolon with as many
* "[]" pairs as is in dim.
*/
newLen = strlen(c)-1 + dim*2;
newName = malloc(newLen + 1);
if (newName == NULL) {
return -1;
}
strcpy(newName, c);
newName[newLen] = '\0';
/* Point nc to the semicolon.
*/
nc = newName + newLen - dim*2;
assert(*nc == ';');
while (dim--) {
*nc++ = '[';
*nc++ = ']';
}
assert(*nc == '\0');
classNameId = hprofLookupStringId(newName);
free(newName);
} else {
classNameId = hprofLookupStringId(dotName);
}
free(dotName);
return classNameId;
}
/*
* 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;
}
