void trace(methodOop method, address bcp, uintptr_t tos, uintptr_t tos2) {
#ifndef PRODUCT
MutexLocker ml(BytecodeTrace_lock);
if (_current_method != method) {
// Note 1: This code will not work as expected with true MT/MP.
// Need an explicit lock or a different solution.
ResourceMark rm;
tty->cr();
tty->print("[%d] ", (int) Thread::current()->osthread()->thread_id());
method->print_name(tty);
tty->cr();
_current_method = method;
}
if (Verbose) {
const char* format;
switch (Bytecodes::length_at(bcp)) {
case 1: format = "%x %02x " ; break;
case 2: format = "%x %02x %02x " ; break;
case 3: format = "%x %02x %02x %02x "; break;
default: format = "%x %02x %02x %02x .."; break;
}
tty->print(format, bcp, *bcp, *(bcp+1), *(bcp+2));
}
Bytecodes::Code code;
if (_previous_bytecode == Bytecodes::_wide) {
code = Bytecodes::cast(*(bcp+1));
} else {
code = Bytecodes::cast(*bcp);
}
int bci = bcp - method->code_base();
const char* format = _previous_bytecode == Bytecodes::_wide ? Bytecodes::wide_format(code) : Bytecodes::format(code);
tty->print("[%d] ", (int) Thread::current()->osthread()->thread_id());
if (Verbose) {
tty->print("%8d %4d 0x%016lx 0x%016lx %s",
BytecodeCounter::counter_value(), bci, tos, tos2, Bytecodes::name(code));
} else {
tty->print("%8d %4d %s",
BytecodeCounter::counter_value(), bci, Bytecodes::name(code));
}
print_attributes(bcp, bci, format);
tty->cr();
_previous_bytecode = code;
#endif
}
