void PcDesc::print(nmethod* code) {
#ifndef PRODUCT
ResourceMark rm;
tty->print_cr("PcDesc(pc=0x%lx offset=%x bits=%x):", real_pc(code), pc_offset(), _flags);
if (scope_decode_offset() == DebugInformationRecorder::serialized_null) {
return;
}
for (ScopeDesc* sd = code->scope_desc_at(real_pc(code));
sd != NULL;
sd = sd->sender()) {
tty->print(" ");
sd->method()->print_short_name(tty);
tty->print(" @%d", sd->bci());
if (sd->should_reexecute())
tty->print(" reexecute=true");
tty->cr();
}
#endif
}
// create a C-heap allocated address location map for an nmethod
void JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nmethod *nm,
jvmtiAddrLocationMap** map_ptr,
jint *map_length_ptr)
{
ResourceMark rm;
jvmtiAddrLocationMap* map = NULL;
jint map_length = 0;
// Generate line numbers using PcDesc and ScopeDesc info
methodHandle mh(nm->method());
if (!mh->is_native()) {
PcDesc *pcd;
int pcds_in_method;
pcds_in_method = (nm->scopes_pcs_end() - nm->scopes_pcs_begin());
map = NEW_C_HEAP_ARRAY(jvmtiAddrLocationMap, pcds_in_method, mtInternal);
address scopes_data = nm->scopes_data_begin();
for( pcd = nm->scopes_pcs_begin(); pcd < nm->scopes_pcs_end(); ++pcd ) {
ScopeDesc sc0(nm, pcd->scope_decode_offset(), pcd->should_reexecute(), pcd->return_oop());
ScopeDesc *sd = &sc0;
while( !sd->is_top() ) {
sd = sd->sender();
}
int bci = sd->bci();
if (bci != InvocationEntryBci) {
assert(map_length < pcds_in_method, "checking");
map[map_length].start_address = (const void*)pcd->real_pc(nm);
map[map_length].location = bci;
++map_length;
}
}
}
*map_ptr = map;
*map_length_ptr = map_length;
}
