Checking in vendor folder for ease of using go get.
This commit is contained in:
Renan DelValle
parent
7a1251853b
commit
cdb4b5a1d0
3554 changed files with 1270116 additions and 0 deletions
312
vendor/git.apache.org/thrift.git/contrib/parse_profiling.py
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vendored
Executable file
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vendor/git.apache.org/thrift.git/contrib/parse_profiling.py
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#!/usr/bin/env python
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#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the 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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# 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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This script can be used to make the output from
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apache::thrift::profile_print_info() more human-readable.
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It translates each executable file name and address into the corresponding
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source file name, line number, and function name. By default, it also
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demangles C++ symbol names.
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"""
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import optparse
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import os
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import re
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import subprocess
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import sys
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class AddressInfo(object):
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"""
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A class to store information about a particular address in an object file.
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"""
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def __init__(self, obj_file, address):
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self.objectFile = obj_file
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self.address = address
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self.sourceFile = None
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self.sourceLine = None
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self.function = None
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g_addrs_by_filename = {}
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def get_address(filename, address):
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"""
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Retrieve an AddressInfo object for the specified object file and address.
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Keeps a global list of AddressInfo objects. Two calls to get_address()
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with the same filename and address will always return the same AddressInfo
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object.
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"""
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global g_addrs_by_filename
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try:
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by_address = g_addrs_by_filename[filename]
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except KeyError:
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by_address = {}
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g_addrs_by_filename[filename] = by_address
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try:
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addr_info = by_address[address]
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except KeyError:
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addr_info = AddressInfo(filename, address)
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by_address[address] = addr_info
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return addr_info
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def translate_file_addresses(filename, addresses, options):
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"""
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Use addr2line to look up information for the specified addresses.
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All of the addresses must belong to the same object file.
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"""
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# Do nothing if we can't find the file
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if not os.path.isfile(filename):
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return
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args = ['addr2line']
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if options.printFunctions:
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args.append('-f')
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args.extend(['-e', filename])
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proc = subprocess.Popen(args, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE)
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for address in addresses:
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assert address.objectFile == filename
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proc.stdin.write(address.address + '\n')
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if options.printFunctions:
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function = proc.stdout.readline()
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function = function.strip()
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if not function:
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raise Exception('unexpected EOF from addr2line')
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address.function = function
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file_and_line = proc.stdout.readline()
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file_and_line = file_and_line.strip()
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if not file_and_line:
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raise Exception('unexpected EOF from addr2line')
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idx = file_and_line.rfind(':')
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if idx < 0:
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msg = 'expected file and line number from addr2line; got %r' % \
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(file_and_line,)
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msg += '\nfile=%r, address=%r' % (filename, address.address)
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raise Exception(msg)
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address.sourceFile = file_and_line[:idx]
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address.sourceLine = file_and_line[idx + 1:]
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(remaining_out, cmd_err) = proc.communicate()
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retcode = proc.wait()
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if retcode != 0:
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raise subprocess.CalledProcessError(retcode, args)
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def lookup_addresses(options):
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"""
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Look up source file information for all of the addresses currently stored
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in the global list of AddressInfo objects.
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"""
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global g_addrs_by_filename
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for (file, addresses) in g_addrs_by_filename.items():
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translate_file_addresses(file, addresses.values(), options)
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class Entry(object):
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"""
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An entry in the thrift profile output.
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Contains a header line, and a backtrace.
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"""
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def __init__(self, header):
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self.header = header
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self.bt = []
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def addFrame(self, filename, address):
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# If libc was able to determine the symbols names, the filename
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# argument will be of the form <filename>(<function>+<offset>)
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# So, strip off anything after the last '('
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idx = filename.rfind('(')
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if idx >= 0:
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filename = filename[:idx]
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addr = get_address(filename, address)
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self.bt.append(addr)
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def write(self, f, options):
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f.write(self.header)
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f.write('\n')
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n = 0
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for address in self.bt:
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f.write(' #%-2d %s:%s\n' % (n, address.sourceFile,
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address.sourceLine))
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n += 1
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if options.printFunctions:
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if address.function:
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f.write(' %s\n' % (address.function,))
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else:
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f.write(' ??\n')
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def process_file(in_file, out_file, options):
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"""
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Read thrift profile output from the specified input file, and print
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prettier information on the output file.
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"""
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#
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# A naive approach would be to read the input line by line,
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# and each time we come to a filename and address, pass it to addr2line
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# and print the resulting information. Unfortunately, addr2line can be
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# quite slow, especially with large executables.
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#
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# This approach is much faster. We read in all of the input, storing
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# the addresses in each file that need to be resolved. We then call
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# addr2line just once for each file. This is much faster than calling
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# addr2line once per address.
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#
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virt_call_regex = re.compile(r'^\s*T_VIRTUAL_CALL: (\d+) calls on (.*):$')
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gen_prot_regex = re.compile(
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r'^\s*T_GENERIC_PROTOCOL: (\d+) calls to (.*) with a (.*):$')
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bt_regex = re.compile(r'^\s*#(\d+)\s*(.*) \[(0x[0-9A-Za-z]+)\]$')
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# Parse all of the input, and store it as Entry objects
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entries = []
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current_entry = None
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while True:
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line = in_file.readline()
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if not line:
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break
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if line == '\n' or line.startswith('Thrift virtual call info:'):
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continue
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virt_call_match = virt_call_regex.match(line)
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if virt_call_match:
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num_calls = int(virt_call_match.group(1))
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type_name = virt_call_match.group(2)
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if options.cxxfilt:
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# Type names reported by typeid() are internal names.
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# By default, c++filt doesn't demangle internal type names.
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# (Some versions of c++filt have a "-t" option to enable this.
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# Other versions don't have this argument, but demangle type
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# names passed as an argument, but not on stdin.)
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#
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# If the output is being filtered through c++filt, prepend
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# "_Z" to the type name to make it look like an external name.
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type_name = '_Z' + type_name
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header = 'T_VIRTUAL_CALL: %d calls on "%s"' % \
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(num_calls, type_name)
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if current_entry is not None:
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entries.append(current_entry)
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current_entry = Entry(header)
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continue
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gen_prot_match = gen_prot_regex.match(line)
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if gen_prot_match:
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num_calls = int(gen_prot_match.group(1))
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type_name1 = gen_prot_match.group(2)
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type_name2 = gen_prot_match.group(3)
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if options.cxxfilt:
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type_name1 = '_Z' + type_name1
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type_name2 = '_Z' + type_name2
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header = 'T_GENERIC_PROTOCOL: %d calls to "%s" with a "%s"' % \
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(num_calls, type_name1, type_name2)
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if current_entry is not None:
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entries.append(current_entry)
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current_entry = Entry(header)
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continue
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bt_match = bt_regex.match(line)
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if bt_match:
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if current_entry is None:
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raise Exception('found backtrace frame before entry header')
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frame_num = int(bt_match.group(1))
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filename = bt_match.group(2)
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address = bt_match.group(3)
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current_entry.addFrame(filename, address)
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continue
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raise Exception('unexpected line in input: %r' % (line,))
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# Add the last entry we were processing to the list
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if current_entry is not None:
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entries.append(current_entry)
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current_entry = None
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# Look up all of the addresses
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lookup_addresses(options)
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# Print out the entries, now that the information has been translated
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for entry in entries:
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entry.write(out_file, options)
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out_file.write('\n')
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def start_cppfilt():
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(read_pipe, write_pipe) = os.pipe()
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# Fork. Run c++filt in the parent process,
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# and then continue normal processing in the child.
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pid = os.fork()
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if pid == 0:
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# child
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os.dup2(write_pipe, sys.stdout.fileno())
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os.close(read_pipe)
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os.close(write_pipe)
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return
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else:
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# parent
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os.dup2(read_pipe, sys.stdin.fileno())
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os.close(read_pipe)
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os.close(write_pipe)
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cmd = ['c++filt']
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os.execvp(cmd[0], cmd)
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def main(argv):
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parser = optparse.OptionParser(usage='%prog [options] [<file>]')
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parser.add_option('--no-functions', help='Don\'t print function names',
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dest='printFunctions', action='store_false',
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default=True)
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parser.add_option('--no-demangle',
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help='Don\'t demangle C++ symbol names',
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dest='cxxfilt', action='store_false',
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default=True)
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(options, args) = parser.parse_args(argv[1:])
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num_args = len(args)
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if num_args == 0:
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in_file = sys.stdin
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elif num_args == 1:
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in_file = open(argv[1], 'r')
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else:
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parser.print_usage(sys.stderr)
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print >> sys.stderr, 'trailing arguments: %s' % (' '.join(args[1:],))
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return 1
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if options.cxxfilt:
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start_cppfilt()
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process_file(in_file, sys.stdout, options)
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if __name__ == '__main__':
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rc = main(sys.argv)
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sys.exit(rc)
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