static StackTraceElement[] backTrace2stackTrace(Object[] backtrace) {
final VmStackFrame[] vm_trace = (VmStackFrame[]) backtrace;
final int length = vm_trace.length;
final StackTraceElement[] trace = new StackTraceElement[length];
for (int i = length; i-- > 0; ) {
final VmStackFrame frame = vm_trace[i];
final String location = frame.getLocationInfo();
final int lineNumber = "?".equals(location) ? -1 : Integer.parseInt(location);
final VmMethod method = frame.getMethod();
final VmType<?> vmClass = (method == null) ? null : method.getDeclaringClass();
final String fname = (vmClass == null) ? null : vmClass.getSourceFile();
final String cname = (vmClass == null) ? "<unknown class>" : vmClass.getName();
final String mname = (method == null) ? "<unknown method>" : method.getName();
trace[i] =
new StackTraceElement(
cname, mname, fname, method == null || method.isNative() ? -2 : lineNumber);
}
return trace;
}
private static StackTraceElement getStackTraceElement(Throwable instance, int index) {
final VmStackFrame frame =
(VmStackFrame)
((Object[])
ObjectReference.fromObject(instance)
.toAddress()
.add(BACKTRACE_OFFSET)
.loadObjectReference()
.toObject())
[index];
final String location = frame.getLocationInfo();
final int lineNumber = "?".equals(location) ? -1 : Integer.parseInt(location);
final VmMethod method = frame.getMethod();
final VmType<?> vmClass = (method == null) ? null : method.getDeclaringClass();
final String fname = (vmClass == null) ? null : vmClass.getSourceFile();
final String cname = (vmClass == null) ? "<unknown class>" : vmClass.getName();
final String mname = (method == null) ? "<unknown method>" : method.getName();
return new StackTraceElement(
cname, mname, fname, method == null || method.isNative() ? -2 : lineNumber);
}