320b73818b
1. always output the wrap line when dump main heap memory node; 2. format the memdump.py; Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
225 lines
8.0 KiB
Python
225 lines
8.0 KiB
Python
############################################################################
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# tools/gdb/memdump.py
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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import gdb
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import utils
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from lists import list_for_each_entry, sq_for_every, sq_queue
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mempool_backtrace = utils.CachedType("struct mempool_backtrace_s")
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MM_ALLOC_BIT = 0x1
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MM_PREVFREE_BIT = 0x2
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MM_MASK_BIT = MM_ALLOC_BIT | MM_PREVFREE_BIT
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PID_MM_FREE = -4
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PID_MM_ALLOC = -3
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PID_MM_LEAK = -2
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PID_MM_MEMPOOL = -1
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def mm_foreach(heap):
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"""Iterate over a heap, yielding each node"""
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node = gdb.Value(heap["mm_heapstart"][0]).cast(
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gdb.lookup_type("struct mm_allocnode_s").pointer()
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)
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while 1:
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yield node
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next = gdb.Value(node).cast(gdb.lookup_type("char").pointer())
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next = gdb.Value(next + (node["size"] & ~MM_MASK_BIT)).cast(
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gdb.lookup_type("struct mm_allocnode_s").pointer()
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)
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if node >= heap["mm_heapend"].dereference() or next == node:
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break
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node = next
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def mempool_multiple_foreach(mpool):
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"""Iterate over all pools in a mempool, yielding each pool"""
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i = 0
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while i < mpool["npools"]:
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pool = mpool["pools"] + i
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yield pool
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i += 1
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class Nxmemdump(gdb.Command):
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"""Dump the heap and mempool memory"""
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def __init__(self):
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super(Nxmemdump, self).__init__("memdump", gdb.COMMAND_USER)
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def mempool_dump(self, mpool, pid, seqmin, seqmax):
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"""Dump the mempool memory"""
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for pool in mempool_multiple_foreach(mpool):
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if pid == PID_MM_FREE:
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entry = sq_queue.get_type().pointer()
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for entry in sq_for_every(pool["queue"], entry):
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gdb.write("%12u%#*x\n" % (pool["blocksize"], self.align, entry))
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self.aordblks += 1
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self.uordblks += pool["blocksize"]
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for entry in sq_for_every(pool["iqueue"], entry):
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gdb.write("%12u%#*x\n" % (pool["blocksize"], self.align, entry))
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self.aordblks += 1
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self.uordblks += pool["blocksize"]
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else:
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for node in list_for_each_entry(
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pool["alist"], mempool_backtrace.get_type().pointer(), "node"
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):
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if (pid == node["pid"] or pid == PID_MM_ALLOC) and (
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node["seqno"] >= seqmin and node["seqno"] < seqmax
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):
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charnode = gdb.Value(node).cast(
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gdb.lookup_type("char").pointer()
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)
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gdb.write(
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"%6d%12u%12u%#*x"
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% (
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node["pid"],
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pool["blocksize"] & ~MM_MASK_BIT,
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node["seqno"],
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self.align,
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(int)(charnode - pool["blocksize"]),
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)
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)
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if node.type.has_key("backtrace"):
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max = node["backtrace"].type.range()[1]
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for x in range(0, max):
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gdb.write(" ")
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gdb.write(
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node["backtrace"][x].format_string(
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raw=False, symbols=True, address=False
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)
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)
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gdb.write("\n")
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self.aordblks += 1
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self.uordblks += pool["blocksize"]
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def memdump(self, pid, seqmin, seqmax):
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"""Dump the heap memory"""
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if pid >= PID_MM_ALLOC:
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gdb.write("Dump all used memory node info:\n")
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gdb.write(
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"%6s%12s%12s%*s %s\n"
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% ("PID", "Size", "Sequence", self.align, "Address", "Callstack")
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)
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else:
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gdb.write("Dump all free memory node info:\n")
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gdb.write("%12s%*s\n" % ("Size", self.align, "Address"))
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heap = gdb.parse_and_eval("g_mmheap")
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if heap.type.has_key("mm_mpool"):
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self.mempool_dump(heap["mm_mpool"], pid, seqmin, seqmax)
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for node in mm_foreach(heap):
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if node["size"] & MM_ALLOC_BIT != 0:
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if (
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pid == node["pid"]
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or (pid == PID_MM_ALLOC and node["pid"] != PID_MM_MEMPOOL)
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) and (node["seqno"] >= seqmin and node["seqno"] < seqmax):
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charnode = gdb.Value(node).cast(gdb.lookup_type("char").pointer())
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gdb.write(
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"%6d%12u%12u%#*x"
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% (
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node["pid"],
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node["size"] & ~MM_MASK_BIT,
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node["seqno"],
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self.align,
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(int)(
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charnode
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+ gdb.lookup_type("struct mm_allocnode_s").sizeof
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),
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)
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)
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if node.type.has_key("backtrace"):
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max = node["backtrace"].type.range()[1]
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for x in range(0, max):
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gdb.write(" ")
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gdb.write(
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node["backtrace"][x].format_string(
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raw=False, symbols=True, address=False
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)
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)
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gdb.write("\n")
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self.aordblks += 1
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self.uordblks += node["size"] & ~MM_MASK_BIT
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else:
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if pid == PID_MM_FREE:
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charnode = gdb.Value(node).cast(gdb.lookup_type("char").pointer())
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gdb.write(
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"%12u%#*x\n"
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% (
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node["size"] & ~MM_MASK_BIT,
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self.align,
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(int)(
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charnode
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+ gdb.lookup_type("struct mm_allocnode_s").sizeof
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),
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)
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)
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self.aordblks += 1
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self.uordblks += node["size"] & ~MM_MASK_BIT
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gdb.write("%12s%12s\n" % ("Total Blks", "Total Size"))
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gdb.write("%12d%12d\n" % (self.aordblks, self.uordblks))
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def complete(self, text, word):
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return gdb.COMPLETE_SYMBOL
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def invoke(self, args, from_tty):
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if gdb.lookup_type("size_t").sizeof == 4:
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self.align = 11
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else:
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self.align = 19
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arg = args.split(" ")
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if arg[0] == "":
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pid = PID_MM_ALLOC
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elif arg[0] == "used":
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pid = PID_MM_ALLOC
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elif arg[0] == "free":
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pid = PID_MM_LEAK
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else:
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pid = int(arg[0])
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if len(arg) == 2:
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seqmin = int(arg[1])
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else:
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seqmin = 0
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if len(arg) == 3:
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seqmax = int(arg[2])
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else:
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seqmax = 0xFFFFFFFF
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self.aordblks = 0
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self.uordblks = 0
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self.memdump(pid, seqmin, seqmax)
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Nxmemdump()
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