static void m2n_pop_local_handles() {
assert(!hythread_is_suspend_enabled());
if (exn_raised()) {
exn_rethrow();
}
M2nFrame * m2n = m2n_get_last_frame();
free_local_object_handles2(m2n->local_object_handles);
}
static IDATA rt_jthread_monitor_enter(ManagedObject* monitor) {
const unsigned handles_size = (unsigned)(sizeof(ObjectHandlesNew)+sizeof(ManagedObject*)*4);
ObjectHandlesNew* handels = (ObjectHandlesNew *)STD_ALLOCA(handles_size);
handels->capacity = 4;
handels->size = 0;
handels->next = NULL;
m2n_set_local_handles(m2n_get_last_frame(), (ObjectHandles *) handels);
ObjectHandle monitorJavaObj = oh_allocate_local_handle();
monitorJavaObj->object = monitor;
IDATA result = jthread_monitor_enter(monitorJavaObj);
free_local_object_handles2(m2n_get_local_handles(m2n_get_last_frame()));
m2n_set_local_handles(m2n_get_last_frame(), NULL);
return result;
}
// function can be safe point & should be called with disable reqursion = 1
void exn_athrow_regs(Registers * regs, Class_Handle exn_class, bool java_code, bool transfer_control)
{
assert(!hythread_is_suspend_enabled());
assert(exn_class);
#ifndef _IPF_
M2nFrame *cur_m2nf = (M2nFrame *) STD_ALLOCA(m2n_get_size());
M2nFrame *unw_m2nf;
ManagedObject *exn_obj = NULL;
StackIterator *si;
DebugUtilsTI* ti = VM_Global_State::loader_env->TI;
VM_thread* vmthread = p_TLS_vmthread;
if (java_code)
m2n_push_suspended_frame(vmthread, cur_m2nf, regs);
else
// Gregory -
// Initialize cur_m2nf pointer in case we've crashed in native code that is unwindable,
// e.g. in the code that sets non-unwindable state for the native code area
cur_m2nf = m2n_get_last_frame();
BEGIN_RAISE_AREA;
si = (StackIterator*) STD_ALLOCA(si_size());
si_fill_from_native(si);
ManagedObject *local_exn_obj = NULL;
exn_obj = exn_propagate_exception(si, &local_exn_obj, exn_class, NULL, NULL, NULL);
//free local handles
ObjectHandles* last_m2n_frame_handles = m2n_get_local_handles(cur_m2nf);
if (last_m2n_frame_handles) {
free_local_object_handles2(last_m2n_frame_handles);
}
if (ti->get_global_capability(DebugUtilsTI::TI_GC_ENABLE_EXCEPTION_EVENT)) {
VM_thread *thread = p_TLS_vmthread;
NativeCodePtr callback = (NativeCodePtr)
jvmti_exception_catch_callback;
si_copy_to_registers(si, regs);
vm_set_exception_registers(thread, *regs);
si_set_callback(si, &callback);
} else if (p_TLS_vmthread->restore_guard_page) {
VM_thread *thread = p_TLS_vmthread;
NativeCodePtr callback = (NativeCodePtr)
exception_catch_callback;
si_copy_to_registers(si, regs);
vm_set_exception_registers(thread, *regs);
si_set_callback(si, &callback);
}
si_copy_to_registers(si, regs);
if (transfer_control) {
// Let NCAI to continue single stepping in exception handler
ncai_setup_signal_step(&vmthread->jvmti_thread, (NativeCodePtr)regs->get_ip());
set_exception_object_internal(exn_obj);
si_transfer_control(si);
assert(!"si_transfer_control should not return");
}
unw_m2nf = si_get_m2n(si);
//si_free(si);
END_RAISE_AREA;
set_exception_object_internal(exn_obj);
m2n_set_last_frame(unw_m2nf);
#endif
} //exn_athrow_regs
// function can be safe point & should be called with disable reqursion = 1
void exn_throw_for_JIT(ManagedObject* exn_obj, Class_Handle exn_class,
Method_Handle exn_constr, U_8* jit_exn_constr_args, jvalue* vm_exn_constr_args)
{
/*
* !!!! NO LOGGER IS ALLOWED IN THIS FUNCTION !!!
* !!!! RELEASE BUILD WILL BE BROKEN !!!
* !!!! NO TRACE2, INFO, WARN, ECHO, ASSERT, ...
*/
assert(!hythread_is_suspend_enabled());
if(exn_raised()) {
return;
}
ASSERT_NO_INTERPRETER
ASSERT_RAISE_AREA;
if ((exn_obj == NULL) && (exn_class == NULL)) {
exn_class = VM_Global_State::loader_env->java_lang_NullPointerException_Class;
}
ManagedObject* local_exn_obj = exn_obj;
StackIterator* si = (StackIterator*) STD_ALLOCA(si_size());
si_fill_from_native(si);
if (exn_raised()) {
return;
}
#ifndef _IPF_
assert(is_gc_frame_before_m2n_frame());
#endif // _IPF_
assert(!exn_raised());
if (si_is_past_end(si)) {
//FIXME LAZY EXCEPTION (2006.05.12)
// should be replaced by lazy version
set_exception_object_internal(local_exn_obj);
return;
}
si_transfer_all_preserved_registers(si);
assert(!exn_raised());
DebugUtilsTI* ti = VM_Global_State::loader_env->TI;
exn_obj = exn_propagate_exception(si, &local_exn_obj, exn_class, exn_constr,
jit_exn_constr_args, vm_exn_constr_args);
if (exn_raised()) {
//si_free(si);
return;
}
M2nFrame* m2nFrame = m2n_get_last_frame();
ObjectHandles* last_m2n_frame_handles = m2n_get_local_handles(m2nFrame);
if (last_m2n_frame_handles) {
free_local_object_handles2(last_m2n_frame_handles);
}
set_exception_object_internal(exn_obj);
if (ti->get_global_capability(DebugUtilsTI::TI_GC_ENABLE_EXCEPTION_EVENT)) {
Registers regs = {0};
VM_thread *thread = p_TLS_vmthread;
NativeCodePtr callback = (NativeCodePtr)
jvmti_exception_catch_callback;
si_copy_to_registers(si, ®s);
vm_set_exception_registers(thread, regs);
si_set_callback(si, &callback);
} else if (p_TLS_vmthread->restore_guard_page) {
Registers regs = {0};
VM_thread *thread = p_TLS_vmthread;
NativeCodePtr callback = (NativeCodePtr)
exception_catch_callback;
si_copy_to_registers(si, ®s);
vm_set_exception_registers(thread, regs);
si_set_callback(si, &callback);
}
// don't put any call here
si_transfer_control(si);
} //exn_throw_for_JIT
