mirror of
https://github.com/rubyjs/therubyracer
synced 2023-03-27 23:21:42 -04:00
205c52c5bf
move v8 src to google dir moving v8 source into main extension move google upstream source dir into v8 ext dir include v8 library in generated bundle prep for 0.4.7 roll the upstream build into the main extension build Documentation was confusing the gem packager. simplify build instructions with bundled v8. Only install scons and build v8 if it has not been built already. Missing CVS.py from the scons library due to ignore patterns. Don't need libv8 anymore, only python 2.5 which is required to build it.
137 lines
4.9 KiB
Python
Executable file
137 lines
4.9 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Copyright 2008 the V8 project authors. All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Usage: process-ticks.py <binary> <logfile>
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#
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# Where <binary> is the binary program name (eg, v8_shell.exe) and
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# <logfile> is the log file name (eg, v8.log).
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#
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# This tick processor expects to find a map file for the binary named
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# binary.map if the binary is named binary.exe. The tick processor
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# only works for statically linked executables - no information about
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# shared libraries is logged from v8 on Windows.
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import os, re, sys, tickprocessor
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class WindowsTickProcessor(tickprocessor.TickProcessor):
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def Unmangle(self, name):
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"""Performs very simple unmangling of C++ names.
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Does not handle arguments and template arguments. The mangled names have
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the form:
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?LookupInDescriptor@JSObject@internal@v8@@...arguments info...
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"""
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# Name is mangled if it starts with a question mark.
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is_mangled = re.match("^\?(.*)", name)
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if is_mangled:
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substrings = is_mangled.group(1).split('@')
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try:
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# The function name is terminated by two @s in a row. Find the
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# substrings that are part of the function name.
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index = substrings.index('')
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substrings = substrings[0:index]
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except ValueError:
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# If we did not find two @s in a row, the mangled name is not in
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# the format we expect and we give up.
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return name
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substrings.reverse()
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function_name = "::".join(substrings)
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return function_name
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return name
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def ParseMapFile(self, filename):
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"""Parse map file and add symbol information to the cpp entries."""
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# Locate map file.
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has_dot = re.match('^([a-zA-F0-9_-]*)[\.]?.*$', filename)
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if has_dot:
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map_file_name = has_dot.group(1) + '.map'
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try:
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map_file = open(map_file_name, 'rb')
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except IOError:
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sys.exit("Could not open map file: " + map_file_name)
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else:
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sys.exit("Could not find map file for executable: " + filename)
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try:
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max_addr = 0
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min_addr = 2**30
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# Process map file and search for function entries.
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row_regexp = re.compile(' 0001:[0-9a-fA-F]{8}\s*([_\?@$0-9a-zA-Z]*)\s*([0-9a-fA-F]{8}).*')
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for line in map_file:
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row = re.match(row_regexp, line)
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if row:
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addr = int(row.group(2), 16)
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if addr > max_addr:
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max_addr = addr
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if addr < min_addr:
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min_addr = addr
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mangled_name = row.group(1)
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name = self.Unmangle(mangled_name)
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self.cpp_entries.Insert(addr, tickprocessor.CodeEntry(addr, name));
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i = min_addr
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# Mark the pages for which there are functions in the map file.
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while i < max_addr:
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page = i >> 12
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self.vm_extent[page] = 1
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i += 4096
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finally:
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map_file.close()
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class WindowsCmdLineProcessor(tickprocessor.CmdLineProcessor):
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def __init__(self):
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super(WindowsCmdLineProcessor, self).__init__()
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self.binary_file = None
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def GetRequiredArgsNames(self):
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return 'binary log_file'
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def ProcessRequiredArgs(self, args):
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if len(args) != 2:
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self.PrintUsageAndExit()
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else:
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self.binary_file = args[0]
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self.log_file = args[1]
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def Main():
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cmdline_processor = WindowsCmdLineProcessor()
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cmdline_processor.ProcessArguments()
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tickprocessor = WindowsTickProcessor()
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tickprocessor.ParseMapFile(cmdline_processor.binary_file)
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cmdline_processor.RunLogfileProcessing(tickprocessor)
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tickprocessor.PrintResults()
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if __name__ == '__main__':
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Main()
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