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342 lines
14 KiB
Python
Executable File
342 lines
14 KiB
Python
Executable File
#!/bin/env python
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# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is mozilla.org code.
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#
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# The Initial Developer of the Original Code is
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# The Mozilla Foundation
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# Portions created by the Initial Developer are Copyright (C) 2007
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Ted Mielczarek <ted.mielczarek@gmail.com>
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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#
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# Usage: symbolstore.py <params> <dump_syms path> <symbol store path>
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# <debug info files or dirs>
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# Runs dump_syms on each debug info file specified on the command line,
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# then places the resulting symbol file in the proper directory
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# structure in the symbol store path. Accepts multiple files
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# on the command line, so can be called as part of a pipe using
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# find <dir> | xargs symbolstore.pl <dump_syms> <storepath>
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# But really, you might just want to pass it <dir>.
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#
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# Parameters accepted:
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# -c : Copy debug info files to the same directory structure
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# as sym files
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# -a "<archs>" : Run dump_syms -a <arch> for each space separated
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# cpu architecture in <archs> (only on OS X)
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# -s <srcdir> : Use <srcdir> as the top source directory to
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# generate relative filenames.
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import sys
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import os
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import re
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import shutil
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from optparse import OptionParser
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# Utility functions
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def GetCVSRevision(file):
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"""Given a full path to a file, look in CVS/Entries
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for the CVS revision number"""
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(path, filename) = os.path.split(file)
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entries = os.path.join(path, "CVS", "Entries")
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if not os.path.isfile(entries):
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return None
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f = open(entries, "r")
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for line in f:
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parts = line.split("/")
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if len(parts) > 1 and parts[1] == filename:
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return parts[2]
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print >> sys.stderr, "Failed to get CVS Revision for %s" % filename
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return None
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def GetCVSRoot(file):
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"""Given a full path to a file, look in CVS/Root
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for the CVS Root"""
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(path, filename) = os.path.split(file)
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root = os.path.join(path, "CVS", "Root")
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if not os.path.isfile(root):
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return None
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f = open(root, "r")
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root_name = f.readline().strip()
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f.close()
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parts = root_name.split("@")
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if len(parts) > 1:
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# we don't want the extra colon
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return parts[1].replace(":","")
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print >> sys.stderr, "Failed to get CVS Root for %s" % filename
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return None
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def GetVCSFilename(file, srcdir):
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"""Given a full path to a file, and the top source directory,
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look for version control information about this file, and return
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a specially formatted filename that contains the VCS type,
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VCS location, relative filename, and revision number, formatted like:
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vcs:vcs location:filename:revision
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For example:
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cvs:cvs.mozilla.org/cvsroot:mozilla/browser/app/nsBrowserApp.cpp:1.36"""
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(path, filename) = os.path.split(file)
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if path == '' or filename == '':
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return file
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cvsdir = os.path.join(path, "CVS")
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if os.path.isdir(cvsdir):
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rev = GetCVSRevision(file)
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root = GetCVSRoot(file)
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if rev is not None and root is not None:
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if srcdir is not None:
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# strip the base path off
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# but we actually want the last dir in srcdir
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# also, we want forward slashes on win32 paths
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file = os.path.normpath(file)
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file = file.replace(srcdir, "", 1)
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(head, tail) = os.path.split(srcdir)
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if tail == "":
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tail = os.path.basename(head)
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file = tail + file
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file = file.replace("\\", "/")
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return "cvs:%s:%s:%s" % (root, file, rev)
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file = file.replace("\\", "/")
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return file
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def GetPlatformSpecificDumper(**kwargs):
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"""This function simply returns a instance of a subclass of Dumper
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that is appropriate for the current platform."""
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return {'win32': Dumper_Win32,
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'cygwin': Dumper_Win32,
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'linux2': Dumper_Linux,
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'darwin': Dumper_Mac}[sys.platform](**kwargs)
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class Dumper:
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"""This class can dump symbols from a file with debug info, and
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store the output in a directory structure that is valid for use as
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a Breakpad symbol server. Requires a path to a dump_syms binary--
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|dump_syms| and a directory to store symbols in--|symbol_path|.
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Optionally takes a list of processor architectures to process from
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each debug file--|archs|, the full path to the top source
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directory--|srcdir|, for generating relative source file names,
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and an option to copy debug info files alongside the dumped
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symbol files--|copy_debug|, mostly useful for creating a
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Microsoft Symbol Server from the resulting output.
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You don't want to use this directly if you intend to call
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ProcessDir. Instead, call GetPlatformSpecificDumper to
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get an instance of a subclass."""
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def __init__(self, dump_syms, symbol_path,
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archs=None, srcdir=None, copy_debug=False, vcsinfo=False):
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self.dump_syms = dump_syms
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self.symbol_path = symbol_path
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if archs is None:
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# makes the loop logic simpler
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self.archs = ['']
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else:
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self.archs = ['-a %s' % a for a in archs.split()]
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if srcdir is not None:
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self.srcdir = os.path.normpath(srcdir)
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else:
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self.srcdir = None
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self.copy_debug = copy_debug
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self.vcsinfo = vcsinfo
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# subclasses override this
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def ShouldProcess(self, file):
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return False
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def RunFileCommand(self, file):
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"""Utility function, returns the output of file(1)"""
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try:
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# we use -L to read the targets of symlinks,
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# and -b to print just the content, not the filename
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return os.popen("file -Lb " + file).read()
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except:
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return ""
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# This is a no-op except on Win32
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def FixFilenameCase(self, file):
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return file
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def Process(self, file_or_dir):
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"Process a file or all the (valid) files in a directory."
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if os.path.isdir(file_or_dir):
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return self.ProcessDir(file_or_dir)
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elif os.path.isfile(file_or_dir):
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return self.ProcessFile(file_or_dir)
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# maybe it doesn't exist?
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return False
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def ProcessDir(self, dir):
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"""Process all the valid files in this directory. Valid files
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are determined by calling ShouldProcess."""
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result = True
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for root, dirs, files in os.walk(dir):
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for f in files:
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fullpath = os.path.join(root, f)
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if self.ShouldProcess(fullpath):
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if not self.ProcessFile(fullpath):
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result = False
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return result
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def ProcessFile(self, file):
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"""Dump symbols from this file into a symbol file, stored
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in the proper directory structure in |symbol_path|."""
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result = False
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for arch in self.archs:
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try:
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cmd = os.popen("%s %s %s" % (self.dump_syms, arch, file), "r")
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module_line = cmd.next()
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if module_line.startswith("MODULE"):
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# MODULE os cpu guid debug_file
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(guid, debug_file) = (module_line.split())[3:5]
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# strip off .pdb extensions, and append .sym
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sym_file = re.sub("\.pdb$", "", debug_file) + ".sym"
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# we do want forward slashes here
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rel_path = os.path.join(debug_file,
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guid,
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sym_file).replace("\\", "/")
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full_path = os.path.normpath(os.path.join(self.symbol_path,
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rel_path))
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try:
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os.makedirs(os.path.dirname(full_path))
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except OSError: # already exists
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pass
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f = open(full_path, "w")
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f.write(module_line)
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# now process the rest of the output
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for line in cmd:
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if line.startswith("FILE"):
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# FILE index filename
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(x, index, filename) = line.split(None, 2)
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filename = self.FixFilenameCase(filename.rstrip())
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if self.vcsinfo:
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filename = GetVCSFilename(filename, self.srcdir)
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f.write("FILE %s %s\n" % (index, filename))
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else:
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# pass through all other lines unchanged
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f.write(line)
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f.close()
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cmd.close()
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# we output relative paths so callers can get a list of what
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# was generated
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print rel_path
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if self.copy_debug:
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rel_path = os.path.join(debug_file,
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guid,
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debug_file).replace("\\", "/")
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print rel_path
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full_path = os.path.normpath(os.path.join(self.symbol_path,
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rel_path))
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shutil.copyfile(file, full_path)
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result = True
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except StopIteration:
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pass
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except:
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print >> sys.stderr, "Unexpected error: ", sys.exc_info()[0]
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raise
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return result
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# Platform-specific subclasses. For the most part, these just have
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# logic to determine what files to extract symbols from.
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class Dumper_Win32(Dumper):
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def ShouldProcess(self, file):
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"""This function will allow processing of pdb files that have dll
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or exe files with the same base name next to them."""
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if file.endswith(".pdb"):
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(path,ext) = os.path.splitext(file)
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if os.path.isfile(path + ".exe") or os.path.isfile(path + ".dll"):
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return True
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return False
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def FixFilenameCase(self, file):
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"""Recent versions of Visual C++ put filenames into
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PDB files as all lowercase. If the file exists
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on the local filesystem, fix it."""
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(path, filename) = os.path.split(file)
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if not os.path.isdir(path):
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return file
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lc_filename = filename.lower()
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for f in os.listdir(path):
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if f.lower() == lc_filename:
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return os.path.join(path, f)
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return file
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class Dumper_Linux(Dumper):
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def ShouldProcess(self, file):
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"""This function will allow processing of files that are
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executable, or end with the .so extension, and additionally
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file(1) reports as being ELF files. It expects to find the file
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command in PATH."""
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if file.endswith(".so") or os.access(file, os.X_OK):
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return self.RunFileCommand(file).startswith("ELF")
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return False
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class Dumper_Mac(Dumper):
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def ShouldProcess(self, file):
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"""This function will allow processing of files that are
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executable, or end with the .dylib extension, and additionally
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file(1) reports as being Mach-O files. It expects to find the file
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command in PATH."""
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if file.endswith(".dylib") or os.access(file, os.X_OK):
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return self.RunFileCommand(file).startswith("Mach-O")
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return False
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# Entry point if called as a standalone program
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def main():
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parser = OptionParser(usage="usage: %prog [options] <dump_syms binary> <symbol store path> <debug info files>")
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parser.add_option("-c", "--copy",
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action="store_true", dest="copy_debug", default=False,
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help="Copy debug info files into the same directory structure as symbol files")
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parser.add_option("-a", "--archs",
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action="store", dest="archs",
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help="Run dump_syms -a <arch> for each space separated cpu architecture in ARCHS (only on OS X)")
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parser.add_option("-s", "--srcdir",
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action="store", dest="srcdir",
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help="Use SRCDIR to determine relative paths to source files")
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parser.add_option("-v", "--vcs-info",
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action="store_true", dest="vcsinfo",
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help="Try to retrieve VCS info for each FILE listed in the output")
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(options, args) = parser.parse_args()
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if len(args) < 3:
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parser.error("not enough arguments")
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exit(1)
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dumper = GetPlatformSpecificDumper(dump_syms=args[0],
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symbol_path=args[1],
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copy_debug=options.copy_debug,
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archs=options.archs,
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srcdir=options.srcdir,
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vcsinfo=options.vcsinfo)
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for arg in args[2:]:
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dumper.Process(arg)
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# run main if run directly
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if __name__ == "__main__":
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main()
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