gdb/linux/slab.py

9 import gdb
34     track_type = gdb.lookup_type('struct track')
35     track_alloc = int(gdb.parse_and_eval('TRACK_ALLOC'))
36     track_free = int(gdb.parse_and_eval('TRACK_FREE'))
39     return slab.cast(gdb.lookup_type("struct folio").pointer())
56         return cache['inuse'] + gdb.lookup_type("void").pointer().sizeof
64         p += gdb.lookup_type('struct track').sizeof * 2
118     jiffies = gdb.parse_and_eval("jiffies_64")
158         while p != gdb.Value(0):
173                 track = gdb.Value(p).cast(track_type.pointer())
181     slab_caches = gdb.parse_and_eval("slab_caches")
183         nr_node_ids = int(gdb.parse_and_eval("nr_node_ids"))
205         raise gdb.GdbError("SLAB_STORE_USER is not set in %s" % target_cache['name'].string())
210             gdb.write("%d %s" % (loc['count'], str(addr).split(' ')[-1]))
212             gdb.write("%d <not-available>" % loc['count'])
215             gdb.write(" waste=%d/%d" % (loc['count'] * loc['waste'], loc['waste']))
218             gdb.write(" age=%d/%d/%d" % (loc['min_time'], loc['sum_time']/loc['count'], loc['max_time']))
220             gdb.write(" age=%d" % loc['min_time'])
223             gdb.write(" pid=%d-%d" % (loc['min_pid'], loc['max_pid']))
225             gdb.write(" pid=%d" % loc['min_pid'])
228             nr_cpu = gdb.parse_and_eval('__num_online_cpus')['counter']
230                 gdb.write(" cpus=")
231                 gdb.write(','.join(str(cpu) for cpu in loc['cpus']))
232         gdb.write("\n")
236         gdb.write("\n")
248     gdb.write("Unrecognized command\n")
249     raise gdb.GdbError(t)
251 class LxSlabTrace(gdb.Command):
255         super(LxSlabTrace, self).__init__("lx-slabtrace", gdb.COMMAND_DATA)
259             raise gdb.GdbError("CONFIG_SLUB_DEBUG is not enabled")
261         argv = gdb.string_to_argv(arg)
281         raise gdb.GdbError("CONFIG_SLUB_DEBUG is not enabled")
289     gdb.write("{:^18} | {:^20} | {:^12} | {:^12} | {:^8} | {:^11} | {:^13}\n".format('Pointer', 'name', 'active_objs', 'num_objs', 'objsize', 'objperslab', 'pagesperslab'))
290     gdb.write("{:-^18} | {:-^20} | {:-^12} | {:-^12} | {:-^8} | {:-^11} | {:-^13}\n".format('', '', '', '', '', '', ''))
292     slab_caches = gdb.parse_and_eval("slab_caches")
294         nr_node_ids = int(gdb.parse_and_eval("nr_node_ids"))
309                 raise gdb.GdbError(traceback.format_exc())
315         gdb.write("{:18s} | {:20.19s} | {:12} | {:12} | {:8} | {:11} | {:13}\n".format(hex(cache), cache['name'].string(), str(active_objs), str(num_objs), str(cache['size']), str(objects_per_slab), str(1 << cache_order)))
317 class LxSlabInfo(gdb.Command):
321         super(LxSlabInfo, self).__init__("lx-slabinfo", gdb.COMMAND_DATA)