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diff --git a/meta-oe/classes/socorro-syms.bbclass b/meta-oe/classes/socorro-syms.bbclass
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+# Inherit this class when you want to allow Mozilla Socorro to link Breakpad's
+# stack trace information to the correct source code revision.
+# This class creates a new version of the symbol file (.sym) created by
+# Breakpad. The absolute file paths in the symbol file will be replaced by VCS,
+# branch, file and revision of the source file. That information facilitates the
+# lookup of a particular source code line in the stack trace.
+#
+# Use example:
+#
+# BREAKPAD_BIN = "YourBinary"
+# inherit socorro-syms
+#
+
+# We depend on Breakpad creating the original symbol file.
+inherit breakpad
+
+PACKAGE_PREPROCESS_FUNCS += "symbol_file_preprocess"
+PACKAGES =+ "${PN}-socorro-syms"
+FILES_${PN}-socorro-syms = "/usr/share/socorro-syms"
+
+
+python symbol_file_preprocess() {
+
+    package_dir = d.getVar("PKGD", True)
+    breakpad_bin = d.getVar("BREAKPAD_BIN", True)
+    if not breakpad_bin:
+        package_name = d.getVar("PN", True)
+        bb.error("Package %s depends on Breakpad via socorro-syms. See "
+            "breakpad.bbclass for instructions on setting up the Breakpad "
+            "configuration." % package_name)
+        raise ValueError("BREAKPAD_BIN not defined in %s." % package_name)
+
+    sym_file_name = breakpad_bin + ".sym"
+
+    breakpad_syms_dir = os.path.join(
+        package_dir, "usr", "share", "breakpad-syms")
+    socorro_syms_dir = os.path.join(
+        package_dir, "usr", "share", "socorro-syms")
+    if not os.path.exists(socorro_syms_dir):
+        os.makedirs(socorro_syms_dir)
+
+    breakpad_sym_file_path = os.path.join(breakpad_syms_dir, sym_file_name)
+    socorro_sym_file_path = os.path.join(socorro_syms_dir, sym_file_name)
+
+    # In the symbol file, all source files are referenced like the following.
+    # FILE 123 /path/to/some/File.cpp
+    # Go through all references and replace the file paths with repository
+    # paths.
+    with open(breakpad_sym_file_path, 'r') as breakpad_sym_file, \
+            open(socorro_sym_file_path, 'w') as socorro_sym_file:
+
+        for line in breakpad_sym_file:
+            if line.startswith("FILE "):
+                socorro_sym_file.write(socorro_file_reference(line))
+            else:
+                socorro_sym_file.write(line)
+
+    return
+}
+
+
+def socorro_file_reference(line):
+
+    # The 3rd position is the file path. See example above.
+    source_file_path = line.split()[2]
+    source_file_repo_path = repository_path(os.path.normpath(source_file_path))
+
+    # If the file could be found in any repository then replace it with the
+    # repository's path.
+    if source_file_repo_path:
+        return line.replace(source_file_path, source_file_repo_path)
+
+    return line
+
+
+def repository_path(source_file_path):
+
+    if not os.path.isfile(source_file_path):
+        return None
+
+    # Check which VCS is used and use that to extract repository information.
+    (output, error) = bb.process.run("git status",
+        cwd=os.path.dirname(source_file_path))
+    if not error:
+        return git_repository_path(source_file_path)
+
+    # Here we can add support for other VCSs like hg, svn, cvs, etc.
+
+    # The source file isn't under any VCS so we leave it be.
+    return None
+
+
+def run_command(command, directory):
+
+    (output, error) = bb.process.run(command, cwd=directory)
+    if error:
+        raise bb.process.ExecutionError(command, error)
+
+    return output.rstrip()
+
+
+def git_repository_path(source_file_path):
+
+    import re
+
+    # We need to extract the following.
+    # (1): VCS URL, (2): branch, (3): repo root directory name, (4): repo file,
+    # (5): revision.
+
+    source_file_dir = os.path.dirname(source_file_path)
+
+    # (1) Get the VCS URL and extract the server part, i.e. change the URL from
+    # gitolite@git.someserver.com:SomeRepo.git to just git.someserver.com.
+    source_long_url = run_command(
+        "git config --get remote.origin.url", source_file_dir)
+
+    # The URL could be a local download directory. If so, get the URL again
+    # using the local directory's config file.
+    if os.path.isdir(source_long_url):
+        git_config_file = os.path.join(source_long_url, "config")
+        source_long_url = run_command(
+            "git config --file %s --get remote.origin.url" % git_config_file,
+            source_file_dir)
+
+    # The URL can have several formats. A full list can be found using
+    # git help clone. Extract the server part with a regex.
+    url_match = re.search(".*(://|@)([^:/]*).*", source_long_url)
+    source_server = url_match.group(2)
+
+    # (2) Get the branch for this file. If it's detached and just shows HEAD
+    # then set it to master and hope we can get the correct revision from there.
+    source_branch = run_command(
+        "git rev-parse --abbrev-ref HEAD", source_file_dir)
+    if source_branch == "HEAD":
+        source_branch = "master"
+
+    # (3) Since the repo root directory name can be changed without affecting
+    # git, we need to extract the name from something more reliable.
+    # The git URL has a repo name that we could use. We just need to strip off
+    # everything around it - from gitolite@git.someserver.com:SomeRepo.git/ to
+    # SomeRepo.
+    source_repo_dir = re.sub("/$", "", source_long_url)
+    source_repo_dir = re.sub("\.git$", "", source_repo_dir)
+    source_repo_dir = re.sub(".*[:/]", "", source_repo_dir)
+
+    # (4) We know the file but want to remove all of the build system dependent
+    # path up to and including the repository's root directory, e.g. remove
+    # /home/someuser/dev/repo/projectx/
+    source_toplevel = run_command(
+        "git rev-parse --show-toplevel", source_file_dir)
+    source_toplevel = source_toplevel + os.path.sep
+    source_file = source_file_path.replace(source_toplevel, "")
+
+    # (5) Get the source revision this file is part of.
+    source_revision = run_command("git rev-parse HEAD", source_file_dir)
+
+    # Assemble the repository path according to the Socorro format.
+    socorro_reference = "git:%s/%s:%s/%s:%s" % \
+        (source_server, source_branch,
+        source_repo_dir, source_file,
+        source_revision)
+
+    return socorro_reference
+