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14bc264f47
I wrote this patch to address two problems:
1. if I do `mach run` from a directory other than $topsrcdir, $objdir, or
$objdir/dist/bin, then .gdbinit will not be loaded.
2. Debugging the firefox binary will never load the JS prettyprinters in any
case.
I believe this patch fixes other problems as well, such as .gdbinit_python not being found, and the gdbpp pretty-printers not getting loaded in various situations.
The main changes of this patch are:
1. Move .gdbinit into build/ (and $objdir/build/) to delay it from getting
loaded until the search path is configured.
2. Move libxul.so-gdb.py into the correct directory.
3. Use either libxul.so-gdb.py or js-gdb.py to configure the correct
search path then load .gdbinit, and have .gdbinit load all of the
pretty-printers (Gecko and JS).
4. Use a single preprocessed file to configure the source directory. Use
relative paths within the objdir for everything else.
Differential Revision: https://phabricator.services.mozilla.com/D77589
41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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""" GDB Python customization auto-loader for libxul """
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import re
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from os.path import (
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abspath,
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dirname,
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exists
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)
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# Add the toplevel objdir to the gdb source search path.
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# In development builds, $objdir/dist/bin/libxul.so is a symlink to
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# $objdir/toolkit/library/build/libxul.so, and the latter path is what gdb uses
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# to search for gdb scripts.
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#
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# For artifact builds, libxul.so will be a regular file in $objdir/dist/bin.
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# Look both places.
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libxul_dir = dirname(__file__)
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objdir = None
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for relpath in ("../../..", "../.."):
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objdir = abspath(libxul_dir + "/" + relpath)
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if exists(objdir + "/build/.gdbinit"):
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break
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else:
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gdb.write("Warning: Gecko objdir not found\n")
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if objdir is not None:
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m = re.search(r'[\w ]+: (.*)', gdb.execute("show dir", False, True))
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if m and objdir not in m.group(1).split(":"):
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gdb.execute("set dir {}:{}".format(objdir, m.group(1)))
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# When running from a random directory, the toplevel Gecko .gdbinit may
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# not have been loaded. Load it now.
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gdb.execute("source -s build/.gdbinit.loader")
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