libxul.so-gdb.py - mozsearch

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# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

""" GDB Python customization auto-loader for libxul """

import re

from os.path import abspath, dirname, exists

# Add the toplevel objdir to the gdb source search path.

# In development builds, $objdir/dist/bin/libxul.so is a symlink to

# $objdir/toolkit/library/build/libxul.so, and the latter path is what gdb uses

# to search for gdb scripts.

# For artifact builds, libxul.so will be a regular file in $objdir/dist/bin.

# Look both places.

libxul_dir = dirname(__file__)

objdir = None

for relpath in ("../../..", "../.."):

    objdir = abspath(libxul_dir + "/" + relpath)

    if exists(objdir + "/build/.gdbinit"):

        break

else:

    gdb.write("Warning: Gecko objdir not found\n")

if objdir is not None:

    m = re.search(r"[\w ]+: (.*)", gdb.execute("show dir", False, True))

    if m and objdir not in m.group(1).split(":"):

        gdb.execute("set dir {}:{}".format(objdir, m.group(1)))

    # When running from a random directory, the toplevel Gecko .gdbinit may

    # not have been loaded. Load it now.

    gdb.execute("source -s build/.gdbinit.loader")