670 lines
26 KiB
Python
670 lines
26 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (C) 2016 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""annotate.py: annotate source files based on perf.data.
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"""
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import argparse
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import os
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import os.path
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import shutil
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import subprocess
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import sys
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from simpleperf_report_lib import *
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from utils import *
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class SourceLine(object):
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def __init__(self, file, function, line):
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self.file = file
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self.function = function
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self.line = line
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@property
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def file_key(self):
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return self.file
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@property
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def function_key(self):
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return (self.file, self.function)
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@property
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def line_key(self):
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return (self.file, self.line)
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# TODO: using addr2line can't convert from function_start_address to
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# source_file:line very well for java code. Because in .debug_line section,
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# there is some distance between function_start_address and the address
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# of the first instruction which can be mapped to source line.
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class Addr2Line(object):
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"""collect information of how to map [dso_name,vaddr] to [source_file:line].
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"""
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def __init__(self, addr2line_path, symfs_dir=None):
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self.dso_dict = dict()
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if addr2line_path and is_executable_available(addr2line_path):
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self.addr2line_path = addr2line_path
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else:
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self.addr2line_path = find_tool_path('addr2line')
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if not self.addr2line_path:
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log_exit("Can't find addr2line.")
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self.symfs_dir = symfs_dir
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def add_addr(self, dso_name, addr):
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dso = self.dso_dict.get(dso_name)
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if dso is None:
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self.dso_dict[dso_name] = dso = dict()
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if addr not in dso:
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dso[addr] = None
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def convert_addrs_to_lines(self):
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# store a list of source files
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self.file_list = []
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# map from file to id with file_list[id] == file
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self.file_dict = {}
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self.file_list.append('')
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self.file_dict[''] = 0
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for dso_name in self.dso_dict.keys():
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self._convert_addrs_to_lines(dso_name, self.dso_dict[dso_name])
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self._combine_source_files()
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def _convert_addrs_to_lines(self, dso_name, dso):
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dso_path = self._find_dso_path(dso_name)
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if dso_path is None:
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log_warning("can't find dso '%s'" % dso_name)
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dso.clear()
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return
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addrs = sorted(dso.keys())
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addr_str = []
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for addr in addrs:
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addr_str.append('0x%x' % addr)
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addr_str = '\n'.join(addr_str)
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subproc = subprocess.Popen([self.addr2line_path, '-e', dso_path, '-aifC'],
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stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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(stdoutdata, _) = subproc.communicate(str_to_bytes(addr_str))
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stdoutdata = bytes_to_str(stdoutdata)
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stdoutdata = stdoutdata.strip().split('\n')
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if len(stdoutdata) < len(addrs):
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log_fatal("addr2line didn't output enough lines")
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addr_pos = 0
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out_pos = 0
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while addr_pos < len(addrs) and out_pos < len(stdoutdata):
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addr_line = stdoutdata[out_pos]
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out_pos += 1
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assert addr_line[:2] == "0x"
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assert out_pos < len(stdoutdata)
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source_lines = []
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while out_pos < len(stdoutdata) and stdoutdata[out_pos][:2] != "0x":
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function = stdoutdata[out_pos]
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out_pos += 1
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assert out_pos < len(stdoutdata)
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# Handle lines like "C:\Users\...\file:32".
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items = stdoutdata[out_pos].rsplit(':', 1)
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if len(items) != 2:
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continue
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(file, line) = items
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line = line.split()[0] # Remove comments after line number
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out_pos += 1
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if file.find('?') != -1:
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file = 0
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else:
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file = self._get_file_id(file)
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if line.find('?') != -1:
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line = 0
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else:
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line = int(line)
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source_lines.append(SourceLine(file, function, line))
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dso[addrs[addr_pos]] = source_lines
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addr_pos += 1
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assert addr_pos == len(addrs)
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def _get_file_id(self, file):
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id = self.file_dict.get(file)
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if id is None:
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id = len(self.file_list)
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self.file_list.append(file)
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self.file_dict[file] = id
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return id
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def _combine_source_files(self):
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"""It is possible that addr2line gives us different names for the same
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file, like:
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/usr/local/.../src/main/jni/sudo-game-jni.cpp
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sudo-game-jni.cpp
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We'd better combine these two files. We can do it by combining
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source files with no conflicts in path.
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"""
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# Collect files having the same filename.
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filename_dict = dict()
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for file in self.file_list:
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index = max(file.rfind('/'), file.rfind(os.sep))
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filename = file[index+1:]
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entry = filename_dict.get(filename)
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if entry is None:
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filename_dict[filename] = entry = []
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entry.append(file)
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# Combine files having the same filename and having no conflicts in path.
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for filename in filename_dict.keys():
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files = filename_dict[filename]
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if len(files) == 1:
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continue
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for file in files:
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to_file = file
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# Test if we can merge files[i] with another file having longer
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# path.
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for f in files:
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if len(f) > len(to_file) and f.find(file) != -1:
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to_file = f
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if to_file != file:
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from_id = self.file_dict[file]
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to_id = self.file_dict[to_file]
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self.file_list[from_id] = self.file_list[to_id]
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def get_sources(self, dso_name, addr):
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dso = self.dso_dict.get(dso_name)
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if dso is None:
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return []
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item = dso.get(addr, [])
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source_lines = []
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for source in item:
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source_lines.append(SourceLine(self.file_list[source.file],
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source.function, source.line))
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return source_lines
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def _find_dso_path(self, dso):
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if dso[0] != '/' or dso == '//anon':
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return None
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if self.symfs_dir:
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dso_path = os.path.join(self.symfs_dir, dso[1:])
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if os.path.isfile(dso_path):
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return dso_path
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if os.path.isfile(dso):
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return dso
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return None
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class Period(object):
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"""event count information. It can be used to represent event count
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of a line, a function, a source file, or a binary. It contains two
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parts: period and acc_period.
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When used for a line, period is the event count occurred when running
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that line, acc_period is the accumulated event count occurred when
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running that line and functions called by that line. Same thing applies
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when it is used for a function, a source file, or a binary.
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"""
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def __init__(self, period=0, acc_period=0):
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self.period = period
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self.acc_period = acc_period
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def __iadd__(self, other):
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self.period += other.period
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self.acc_period += other.acc_period
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return self
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class DsoPeriod(object):
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"""Period for each shared library"""
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def __init__(self, dso_name):
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self.dso_name = dso_name
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self.period = Period()
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def add_period(self, period):
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self.period += period
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class FilePeriod(object):
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"""Period for each source file"""
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def __init__(self, file):
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self.file = file
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self.period = Period()
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# Period for each line in the file.
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self.line_dict = {}
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# Period for each function in the source file.
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self.function_dict = {}
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def add_period(self, period):
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self.period += period
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def add_line_period(self, line, period):
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a = self.line_dict.get(line)
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if a is None:
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self.line_dict[line] = a = Period()
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a += period
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def add_function_period(self, function_name, function_start_line, period):
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a = self.function_dict.get(function_name)
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if not a:
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if function_start_line is None:
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function_start_line = -1
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self.function_dict[function_name] = a = [function_start_line, Period()]
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a[1] += period
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class SourceFileAnnotator(object):
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"""group code for annotating source files"""
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def __init__(self, config):
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# check config variables
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config_names = ['perf_data_list', 'source_dirs', 'comm_filters',
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'pid_filters', 'tid_filters', 'dso_filters', 'addr2line_path']
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for name in config_names:
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if name not in config:
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log_exit('config [%s] is missing' % name)
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symfs_dir = 'binary_cache'
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if not os.path.isdir(symfs_dir):
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symfs_dir = None
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kallsyms = 'binary_cache/kallsyms'
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if not os.path.isfile(kallsyms):
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kallsyms = None
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source_dirs = config['source_dirs']
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for dir in source_dirs:
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if not os.path.isdir(dir):
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log_exit('[source_dirs] "%s" is not a dir' % dir)
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if not config['source_dirs']:
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log_exit('Please set source directories.')
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# init member variables
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self.config = config
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self.symfs_dir = symfs_dir
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self.kallsyms = kallsyms
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self.comm_filter = set(config['comm_filters']) if config.get('comm_filters') else None
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if config.get('pid_filters'):
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self.pid_filter = {int(x) for x in config['pid_filters']}
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else:
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self.pid_filter = None
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if config.get('tid_filters'):
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self.tid_filter = {int(x) for x in config['tid_filters']}
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else:
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self.tid_filter = None
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self.dso_filter = set(config['dso_filters']) if config.get('dso_filters') else None
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config['annotate_dest_dir'] = 'annotated_files'
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output_dir = config['annotate_dest_dir']
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if os.path.isdir(output_dir):
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shutil.rmtree(output_dir)
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os.makedirs(output_dir)
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self.addr2line = Addr2Line(self.config['addr2line_path'], symfs_dir)
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def annotate(self):
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self._collect_addrs()
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self._convert_addrs_to_lines()
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self._generate_periods()
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self._write_summary()
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self._collect_source_files()
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self._annotate_files()
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def _collect_addrs(self):
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"""Read perf.data, collect all addresses we need to convert to
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source file:line.
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"""
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for perf_data in self.config['perf_data_list']:
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lib = ReportLib()
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lib.SetRecordFile(perf_data)
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if self.symfs_dir:
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lib.SetSymfs(self.symfs_dir)
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if self.kallsyms:
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lib.SetKallsymsFile(self.kallsyms)
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while True:
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sample = lib.GetNextSample()
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if sample is None:
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lib.Close()
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break
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if not self._filter_sample(sample):
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continue
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symbols = []
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symbols.append(lib.GetSymbolOfCurrentSample())
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callchain = lib.GetCallChainOfCurrentSample()
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for i in range(callchain.nr):
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symbols.append(callchain.entries[i].symbol)
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for symbol in symbols:
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if self._filter_symbol(symbol):
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self.addr2line.add_addr(symbol.dso_name, symbol.vaddr_in_file)
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self.addr2line.add_addr(symbol.dso_name, symbol.symbol_addr)
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def _filter_sample(self, sample):
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"""Return true if the sample can be used."""
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if self.comm_filter:
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if sample.thread_comm not in self.comm_filter:
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return False
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if self.pid_filter:
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if sample.pid not in self.pid_filter:
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return False
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if self.tid_filter:
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if sample.tid not in self.tid_filter:
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return False
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return True
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def _filter_symbol(self, symbol):
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if not self.dso_filter or symbol.dso_name in self.dso_filter:
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return True
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return False
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def _convert_addrs_to_lines(self):
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self.addr2line.convert_addrs_to_lines()
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def _generate_periods(self):
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"""read perf.data, collect Period for all types:
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binaries, source files, functions, lines.
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"""
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self.period = 0
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self.dso_periods = dict()
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self.file_periods = dict()
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for perf_data in self.config['perf_data_list']:
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lib = ReportLib()
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lib.SetRecordFile(perf_data)
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if self.symfs_dir:
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lib.SetSymfs(self.symfs_dir)
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if self.kallsyms:
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lib.SetKallsymsFile(self.kallsyms)
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while True:
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sample = lib.GetNextSample()
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if sample is None:
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lib.Close()
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break
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if not self._filter_sample(sample):
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continue
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symbols = []
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symbols.append(lib.GetSymbolOfCurrentSample())
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callchain = lib.GetCallChainOfCurrentSample()
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for i in range(callchain.nr):
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symbols.append(callchain.entries[i].symbol)
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# Each sample has a callchain, but its period is only used once
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# to add period for each function/source_line/source_file/binary.
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# For example, if more than one entry in the callchain hits a
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# function, the event count of that function is only increased once.
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# Otherwise, we may get periods > 100%.
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is_sample_used = False
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used_dso_dict = dict()
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used_file_dict = dict()
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used_function_dict = dict()
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used_line_dict = dict()
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period = Period(sample.period, sample.period)
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for i in range(len(symbols)):
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symbol = symbols[i]
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if i == 1:
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period = Period(0, sample.period)
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if not self._filter_symbol(symbol):
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continue
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is_sample_used = True
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# Add period to dso.
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self._add_dso_period(symbol.dso_name, period, used_dso_dict)
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# Add period to source file.
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sources = self.addr2line.get_sources(symbol.dso_name, symbol.vaddr_in_file)
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for source in sources:
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if source.file:
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self._add_file_period(source, period, used_file_dict)
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# Add period to line.
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if source.line:
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self._add_line_period(source, period, used_line_dict)
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# Add period to function.
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sources = self.addr2line.get_sources(symbol.dso_name, symbol.symbol_addr)
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for source in sources:
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if source.file:
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self._add_file_period(source, period, used_file_dict)
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if source.function:
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self._add_function_period(source, period, used_function_dict)
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if is_sample_used:
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self.period += sample.period
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def _add_dso_period(self, dso_name, period, used_dso_dict):
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if dso_name not in used_dso_dict:
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used_dso_dict[dso_name] = True
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dso_period = self.dso_periods.get(dso_name)
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if dso_period is None:
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dso_period = self.dso_periods[dso_name] = DsoPeriod(dso_name)
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dso_period.add_period(period)
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def _add_file_period(self, source, period, used_file_dict):
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if source.file_key not in used_file_dict:
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used_file_dict[source.file_key] = True
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file_period = self.file_periods.get(source.file)
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if file_period is None:
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file_period = self.file_periods[source.file] = FilePeriod(source.file)
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file_period.add_period(period)
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def _add_line_period(self, source, period, used_line_dict):
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if source.line_key not in used_line_dict:
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used_line_dict[source.line_key] = True
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file_period = self.file_periods[source.file]
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file_period.add_line_period(source.line, period)
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def _add_function_period(self, source, period, used_function_dict):
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if source.function_key not in used_function_dict:
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used_function_dict[source.function_key] = True
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file_period = self.file_periods[source.file]
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file_period.add_function_period(source.function, source.line, period)
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def _write_summary(self):
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summary = os.path.join(self.config['annotate_dest_dir'], 'summary')
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with open(summary, 'w') as f:
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f.write('total period: %d\n\n' % self.period)
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dso_periods = sorted(self.dso_periods.values(),
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key=lambda x: x.period.acc_period, reverse=True)
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for dso_period in dso_periods:
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f.write('dso %s: %s\n' % (dso_period.dso_name,
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self._get_percentage_str(dso_period.period)))
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f.write('\n')
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file_periods = sorted(self.file_periods.values(),
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key=lambda x: x.period.acc_period, reverse=True)
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for file_period in file_periods:
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f.write('file %s: %s\n' % (file_period.file,
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self._get_percentage_str(file_period.period)))
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for file_period in file_periods:
|
|
f.write('\n\n%s: %s\n' % (file_period.file,
|
|
self._get_percentage_str(file_period.period)))
|
|
values = []
|
|
for func_name in file_period.function_dict.keys():
|
|
func_start_line, period = file_period.function_dict[func_name]
|
|
values.append((func_name, func_start_line, period))
|
|
values = sorted(values, key=lambda x: x[2].acc_period, reverse=True)
|
|
for value in values:
|
|
f.write('\tfunction (%s): line %d, %s\n' % (
|
|
value[0], value[1], self._get_percentage_str(value[2])))
|
|
f.write('\n')
|
|
for line in sorted(file_period.line_dict.keys()):
|
|
f.write('\tline %d: %s\n' % (
|
|
line, self._get_percentage_str(file_period.line_dict[line])))
|
|
|
|
|
|
def _get_percentage_str(self, period, short=False):
|
|
s = 'acc_p: %f%%, p: %f%%' if short else 'accumulated_period: %f%%, period: %f%%'
|
|
return s % self._get_percentage(period)
|
|
|
|
|
|
def _get_percentage(self, period):
|
|
if self.period == 0:
|
|
return (0, 0)
|
|
acc_p = 100.0 * period.acc_period / self.period
|
|
p = 100.0 * period.period / self.period
|
|
return (acc_p, p)
|
|
|
|
|
|
def _collect_source_files(self):
|
|
self.source_file_dict = dict()
|
|
source_file_suffix = ['h', 'c', 'cpp', 'cc', 'java', 'kt']
|
|
for source_dir in self.config['source_dirs']:
|
|
for root, _, files in os.walk(source_dir):
|
|
for file in files:
|
|
if file[file.rfind('.')+1:] in source_file_suffix:
|
|
entry = self.source_file_dict.get(file)
|
|
if entry is None:
|
|
entry = self.source_file_dict[file] = []
|
|
entry.append(os.path.join(root, file))
|
|
|
|
|
|
def _find_source_file(self, file):
|
|
filename = file[file.rfind(os.sep)+1:]
|
|
source_files = self.source_file_dict.get(filename)
|
|
if source_files is None:
|
|
return None
|
|
match_count = 0
|
|
result = None
|
|
for path in source_files:
|
|
if path.find(file) != -1:
|
|
match_count += 1
|
|
result = path
|
|
if match_count > 1:
|
|
log_warning('multiple source for %s, select %s' % (file, result))
|
|
return result
|
|
|
|
|
|
def _annotate_files(self):
|
|
"""Annotate Source files: add acc_period/period for each source file.
|
|
1. Annotate java source files, which have $JAVA_SRC_ROOT prefix.
|
|
2. Annotate c++ source files.
|
|
"""
|
|
dest_dir = self.config['annotate_dest_dir']
|
|
for key in self.file_periods.keys():
|
|
is_java = False
|
|
if key.startswith('$JAVA_SRC_ROOT/'):
|
|
path = key[len('$JAVA_SRC_ROOT/'):]
|
|
items = path.split('/')
|
|
path = os.sep.join(items)
|
|
from_path = self._find_source_file(path)
|
|
to_path = os.path.join(dest_dir, 'java', path)
|
|
is_java = True
|
|
elif key.startswith('/') and os.path.isfile(key):
|
|
path = key
|
|
from_path = path
|
|
to_path = os.path.join(dest_dir, path[1:])
|
|
elif is_windows() and key.find(':\\') != -1 and os.path.isfile(key):
|
|
from_path = key
|
|
to_path = os.path.join(dest_dir, key.replace(':\\', '\\'))
|
|
else:
|
|
path = key[1:] if key.startswith('/') else key
|
|
# Change path on device to path on host
|
|
path = os.sep.join(path.split('/'))
|
|
from_path = self._find_source_file(path)
|
|
to_path = os.path.join(dest_dir, path)
|
|
if from_path is None:
|
|
log_warning("can't find source file for path %s" % key)
|
|
continue
|
|
self._annotate_file(from_path, to_path, self.file_periods[key], is_java)
|
|
|
|
|
|
def _annotate_file(self, from_path, to_path, file_period, is_java):
|
|
"""Annotate a source file.
|
|
|
|
Annotate a source file in three steps:
|
|
1. In the first line, show periods of this file.
|
|
2. For each function, show periods of this function.
|
|
3. For each line not hitting the same line as functions, show
|
|
line periods.
|
|
"""
|
|
log_info('annotate file %s' % from_path)
|
|
with open(from_path, 'r') as rf:
|
|
lines = rf.readlines()
|
|
|
|
annotates = dict()
|
|
for line in file_period.line_dict.keys():
|
|
annotates[line] = self._get_percentage_str(file_period.line_dict[line], True)
|
|
for func_name in file_period.function_dict.keys():
|
|
func_start_line, period = file_period.function_dict[func_name]
|
|
if func_start_line == -1:
|
|
continue
|
|
line = func_start_line - 1 if is_java else func_start_line
|
|
annotates[line] = '[func] ' + self._get_percentage_str(period, True)
|
|
annotates[1] = '[file] ' + self._get_percentage_str(file_period.period, True)
|
|
|
|
max_annotate_cols = 0
|
|
for key in annotates.keys():
|
|
max_annotate_cols = max(max_annotate_cols, len(annotates[key]))
|
|
|
|
empty_annotate = ' ' * (max_annotate_cols + 6)
|
|
|
|
dirname = os.path.dirname(to_path)
|
|
if not os.path.isdir(dirname):
|
|
os.makedirs(dirname)
|
|
with open(to_path, 'w') as wf:
|
|
for line in range(1, len(lines) + 1):
|
|
annotate = annotates.get(line)
|
|
if annotate is None:
|
|
if not lines[line-1].strip():
|
|
annotate = ''
|
|
else:
|
|
annotate = empty_annotate
|
|
else:
|
|
annotate = '/* ' + annotate + (
|
|
' ' * (max_annotate_cols - len(annotate))) + ' */'
|
|
wf.write(annotate)
|
|
wf.write(lines[line-1])
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description=
|
|
"""Annotate source files based on profiling data. It reads line information from
|
|
binary_cache generated by app_profiler.py or binary_cache_builder.py, and
|
|
generate annotated source files in annotated_files directory.""")
|
|
parser.add_argument('-i', '--perf_data_list', nargs='+', action='append', help=
|
|
"""The paths of profiling data. Default is perf.data.""")
|
|
parser.add_argument('-s', '--source_dirs', nargs='+', action='append', help=
|
|
"""Directories to find source files.""")
|
|
parser.add_argument('--comm', nargs='+', action='append', help=
|
|
"""Use samples only in threads with selected names.""")
|
|
parser.add_argument('--pid', nargs='+', action='append', help=
|
|
"""Use samples only in processes with selected process ids.""")
|
|
parser.add_argument('--tid', nargs='+', action='append', help=
|
|
"""Use samples only in threads with selected thread ids.""")
|
|
parser.add_argument('--dso', nargs='+', action='append', help=
|
|
"""Use samples only in selected binaries.""")
|
|
parser.add_argument('--addr2line', help=
|
|
"""Set the path of addr2line.""")
|
|
|
|
args = parser.parse_args()
|
|
config = {}
|
|
config['perf_data_list'] = flatten_arg_list(args.perf_data_list)
|
|
if not config['perf_data_list']:
|
|
config['perf_data_list'].append('perf.data')
|
|
config['source_dirs'] = flatten_arg_list(args.source_dirs)
|
|
config['comm_filters'] = flatten_arg_list(args.comm)
|
|
config['pid_filters'] = flatten_arg_list(args.pid)
|
|
config['tid_filters'] = flatten_arg_list(args.tid)
|
|
config['dso_filters'] = flatten_arg_list(args.dso)
|
|
config['addr2line_path'] = args.addr2line
|
|
|
|
annotator = SourceFileAnnotator(config)
|
|
annotator.annotate()
|
|
log_info('annotate finish successfully, please check result in annotated_files/.')
|
|
|
|
if __name__ == '__main__':
|
|
main()
|