def _helper(self, node: drgn.Object, offset: int) -> Iterable[drgn.Object]:
if node == drgn.NULL(sdb.prog, node.type_):
return
lchild = node.avl_child[0]
yield from self._helper(lchild, offset)
obj = drgn.Object(sdb.prog, type="void *", value=int(node) - offset)
yield obj
rchild = node.avl_child[1]
yield from self._helper(rchild, offset)
def pretty_print(self, metaslabs, indent=0):
first_time = True
for msp in metaslabs:
if not self.args.histogram and not self.args.weight:
Metaslab.print_metaslab(msp, first_time, indent)
if self.args.histogram:
spacemap = msp.ms_sm
if spacemap != drgn.NULL(sdb.prog, spacemap.type_):
histogram = spacemap.sm_phys.smp_histogram
print_histogram(histogram, 32, spacemap.sm_shift)
if self.args.weight:
Metaslab.metaslab_weight_print(msp, first_time, indent)
first_time = False
def print_metaslab(msp, print_header, indent):
spacemap = msp.ms_sm
if print_header:
print(
"".ljust(indent),
"ADDR".ljust(18),
"ID".rjust(4),
"OFFSET".rjust(16),
"FREE".rjust(8),
"FRAG".rjust(5),
"UCMU".rjust(8),
)
print("".ljust(indent), "-" * 65)
free = msp.ms_size
if spacemap != drgn.NULL(sdb.prog, spacemap.type_):
free -= spacemap.sm_phys.smp_alloc
ufrees = msp.ms_unflushed_frees.rt_space
uallocs = msp.ms_unflushed_allocs.rt_space
free = free + ufrees - uallocs
uchanges_free_mem = msp.ms_unflushed_frees.rt_root.bt_num_nodes
uchanges_free_mem *= BTREE_LEAF_SIZE
uchanges_alloc_mem = msp.ms_unflushed_allocs.rt_root.bt_num_nodes
uchanges_alloc_mem *= BTREE_LEAF_SIZE
uchanges_mem = uchanges_free_mem + uchanges_alloc_mem
print(
"".ljust(indent),
hex(msp).ljust(16),
str(int(msp.ms_id)).rjust(4),
hex(msp.ms_start).rjust(16),
nicenum(free).rjust(8),
end="",
)
if msp.ms_fragmentation == -1:
print("-".rjust(6), end="")
else:
print((str(int(msp.ms_fragmentation)) + "%").rjust(6), end="")
print(nicenum(uchanges_mem).rjust(9))
def get_typed_null(type_name: str) -> drgn.Object:
global prog
return drgn.NULL(prog, type_name)
def is_null(obj: drgn.Object) -> bool:
global prog
return bool(obj == drgn.NULL(prog, obj.type_))