mirror of https://github.com/pwndbg/pwndbg
116 lines
3.9 KiB
Python
116 lines
3.9 KiB
Python
import cProfile
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import glob
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import locale
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import os
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import sys
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import time
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from os import environ
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from os import path
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import pkg_resources
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_profiler = cProfile.Profile()
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_start_time = None
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if environ.get("PWNDBG_PROFILE") == "1":
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_start_time = time.time()
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_profiler.enable()
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# Allow users to use packages from a virtualenv
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# That's not 100% supported, but they do it on their own,
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# so we will warn them if the GDB's Python is not virtualenv's Python
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virtual_env = environ.get("VIRTUAL_ENV")
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if virtual_env:
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py_exe_matches = sys.executable.startswith(virtual_env)
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if not py_exe_matches:
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venv_warning = int(environ.get("PWNDBG_VENV_WARNING", 1))
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if venv_warning:
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print(
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f"""WARNING: Pwndbg/GDB run in virtualenv with which it may not work correctly ***
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Detected Python virtual environment: VIRTUAL_ENV='{virtual_env}'
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while GDB is built with different Python binary: {sys.executable}
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Assuming that you installed Pwndbg dependencies into the virtual environment
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If this is not true, this may cause import errors or other issues in Pwndbg
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If all works for you, you can suppress this warning and all further prints
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by setting `export PWNDBG_VENV_WARNING=0` (e.g. in ~/.bashrc or ~/.zshrc etc.)"""
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)
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venv_warn = print
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else:
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venv_warn = lambda *a, **kw: None
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possible_site_packages = glob.glob(
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path.join(virtual_env, "lib", "python*", "site-packages")
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)
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if len(possible_site_packages) > 1:
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venv_warn("*** Found multiple site packages in virtualenv:")
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for site_pkg in possible_site_packages:
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venv_warn(" - %s" % site_pkg)
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virtualenv_site_packages = possible_site_packages[-1]
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venv_warn("*** Using the last one: %s" % virtualenv_site_packages)
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elif len(possible_site_packages) == 1:
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virtualenv_site_packages = possible_site_packages[-1]
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venv_warn("*** Using the only site packages dir found: %s" % virtualenv_site_packages)
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else:
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guessed_python_directory = "python%s.%s" % (
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sys.version_info.major,
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sys.version_info.minor,
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)
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virtualenv_site_packages = path.join(
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virtual_env, "lib", guessed_python_directory, "site-packages"
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)
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venv_warn(
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"*** Not found site-packages in virtualenv, using guessed site packages Python dir: %s"
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% virtualenv_site_packages
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)
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venv_warn(" Added detected virtualenv's Python site packages to sys.path")
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venv_warn("")
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sys.path.append(virtualenv_site_packages)
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directory, file = path.split(__file__)
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directory = path.expanduser(directory)
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directory = path.abspath(directory)
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# Add gdb-pt-dump directory to sys.path so it can be imported
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gdbpt = path.join(directory, "gdb-pt-dump")
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sys.path.append(directory)
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sys.path.append(gdbpt)
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# Add the dir where Pwntools binaries might be into PATH
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pwntools_bin_dir = os.path.join(pkg_resources.get_distribution("pwntools").location, "bin")
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os.environ["PATH"] = os.environ.get("PATH") + os.pathsep + pwntools_bin_dir
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# warn if the user has different encoding than utf-8
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encoding = locale.getpreferredencoding()
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if encoding != "UTF-8":
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print("******")
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print(
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"Your encoding ({}) is different than UTF-8. pwndbg might not work properly.".format(
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encoding
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)
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)
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print("You might try launching GDB with:")
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print(" LC_CTYPE=C.UTF-8 gdb")
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print(
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"If that does not work, make sure that en_US.UTF-8 is uncommented in /etc/locale.gen and that you called `locale-gen` command"
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)
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print("******")
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environ["PWNLIB_NOTERM"] = "1"
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import pwndbg # noqa: F401
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import pwndbg.profiling
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pwndbg.profiling.init(_profiler, _start_time)
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if environ.get("PWNDBG_PROFILE") == "1":
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pwndbg.profiling.profiler.stop("pwndbg-load.pstats")
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pwndbg.profiling.profiler.start()
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