inline void vframeStreamCommon::fill_from_compiled_frame(int decode_offset) {
_mode = compiled_mode;
// Range check to detect ridiculous offsets.
if (decode_offset == DebugInformationRecorder::serialized_null ||
decode_offset < 0 ||
decode_offset >= nm()->scopes_data_size()) {
// 6379830 AsyncGetCallTrace sometimes feeds us wild frames.
// If we attempt to read nmethod::scopes_data at serialized_null (== 0),
// or if we read some at other crazy offset,
// we will decode garbage and make wild references into the heap,
// leading to crashes in product mode.
// (This isn't airtight, of course, since there are internal
// offsets which are also crazy.)
#ifdef ASSERT
if (WizardMode) {
tty->print_cr("Error in fill_from_frame: pc_desc for "
INTPTR_FORMAT " not found or invalid at %d",
_frame.pc(), decode_offset);
nm()->print();
nm()->method()->print_codes();
nm()->print_code();
nm()->print_pcs();
}
#endif
// Provide a cheap fallback in product mode. (See comment above.)
found_bad_method_frame();
fill_from_compiled_native_frame();
return;
}
// Decode first part of scopeDesc
DebugInfoReadStream buffer(nm(), decode_offset);
_sender_decode_offset = buffer.read_int();
_method = methodOop(buffer.read_oop());
_bci = buffer.read_bci();
assert(_method->is_method(), "checking type of decoded method");
}
// Set operations
void set(methodOop method) {
assert(method->is_method(), "must be method");
_result = oop(method);
}
