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b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
135 lines
4.8 KiB
Python
Executable File
135 lines
4.8 KiB
Python
Executable File
#!/usr/bin/python
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#----------------------------------------------------------------------
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# This module will enable GDB remote packet logging when the
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# 'start_gdb_log' command is called with a filename to log to. When the
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# 'stop_gdb_log' command is called, it will disable the logging and
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# print out statistics about how long commands took to execute and also
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# will primnt ou
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# Be sure to add the python path that points to the LLDB shared library.
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#
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# To use this in the embedded python interpreter using "lldb" just
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# import it with the full path using the "command script import"
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# command. This can be done from the LLDB command line:
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# (lldb) command script import /path/to/gdbremote.py
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# Or it can be added to your ~/.lldbinit file so this module is always
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# available.
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#----------------------------------------------------------------------
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import commands
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import optparse
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import os
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import shlex
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import re
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import tempfile
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def start_gdb_log(debugger, command, result, dict):
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'''Start logging GDB remote packets by enabling logging with timestamps and
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thread safe logging. Follow a call to this function with a call to "stop_gdb_log"
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in order to dump out the commands.'''
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global log_file
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if log_file:
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result.PutCString(
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'error: logging is already in progress with file "%s"',
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log_file)
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else:
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args_len = len(args)
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if args_len == 0:
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log_file = tempfile.mktemp()
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elif len(args) == 1:
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log_file = args[0]
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if log_file:
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debugger.HandleCommand(
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'log enable --threadsafe --timestamp --file "%s" gdb-remote packets' %
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log_file)
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result.PutCString(
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"GDB packet logging enable with log file '%s'\nUse the 'stop_gdb_log' command to stop logging and show packet statistics." %
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log_file)
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return
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result.PutCString('error: invalid log file path')
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result.PutCString(usage)
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def parse_time_log(debugger, command, result, dict):
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# Any commands whose names might be followed by more valid C identifier
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# characters must be listed here
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command_args = shlex.split(command)
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parse_time_log_args(command_args)
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def parse_time_log_args(command_args):
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usage = "usage: parse_time_log [options] [<LOGFILEPATH>]"
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description = '''Parse a log file that contains timestamps and convert the timestamps to delta times between log lines.'''
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parser = optparse.OptionParser(
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description=description,
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prog='parse_time_log',
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usage=usage)
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parser.add_option(
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'-v',
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'--verbose',
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action='store_true',
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dest='verbose',
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help='display verbose debug info',
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default=False)
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try:
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(options, args) = parser.parse_args(command_args)
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except:
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return
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for log_file in args:
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parse_log_file(log_file, options)
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def parse_log_file(file, options):
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'''Parse a log file that was contains timestamps. These logs are typically
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generated using:
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(lldb) log enable --threadsafe --timestamp --file <FILE> ....
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This log file will contain timestamps and this function will then normalize
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those packets to be relative to the first value timestamp that is found and
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show delta times between log lines and also keep track of how long it takes
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for GDB remote commands to make a send/receive round trip. This can be
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handy when trying to figure out why some operation in the debugger is taking
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a long time during a preset set of debugger commands.'''
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print '#----------------------------------------------------------------------'
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print "# Log file: '%s'" % file
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print '#----------------------------------------------------------------------'
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timestamp_regex = re.compile('(\s*)([1-9][0-9]+\.[0-9]+)([^0-9].*)$')
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base_time = 0.0
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last_time = 0.0
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file = open(file)
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lines = file.read().splitlines()
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for line in lines:
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match = timestamp_regex.match(line)
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if match:
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curr_time = float(match.group(2))
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delta = 0.0
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if base_time:
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delta = curr_time - last_time
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else:
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base_time = curr_time
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print '%s%.6f %+.6f%s' % (match.group(1), curr_time - base_time, delta, match.group(3))
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last_time = curr_time
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else:
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print line
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if __name__ == '__main__':
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import sys
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parse_time_log_args(sys.argv[1:])
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else:
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import lldb
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if lldb.debugger:
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# This initializer is being run from LLDB in the embedded command interpreter
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# Add any commands contained in this module to LLDB
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lldb.debugger.HandleCommand(
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'command script add -f delta.parse_time_log parse_time_log')
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print 'The "parse_time_log" command is now installed and ready for use, type "parse_time_log --help" for more information'
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