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author | alexv-smirnov <alex@ydb.tech> | 2023-03-15 19:59:12 +0300 |
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committer | alexv-smirnov <alex@ydb.tech> | 2023-03-15 19:59:12 +0300 |
commit | 056bb284ccf8dd6793ec3a54ffa36c4fb2b9ad11 (patch) | |
tree | 4740980126f32e3af7937ba0ca5f83e59baa4ab0 /contrib/tools/cython/Cython/Debugger/Cygdb.py | |
parent | 269126dcced1cc8b53eb4398b4a33e5142f10290 (diff) | |
download | ydb-056bb284ccf8dd6793ec3a54ffa36c4fb2b9ad11.tar.gz |
add library/cpp/actors, ymake build to ydb oss export
Diffstat (limited to 'contrib/tools/cython/Cython/Debugger/Cygdb.py')
-rw-r--r-- | contrib/tools/cython/Cython/Debugger/Cygdb.py | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/contrib/tools/cython/Cython/Debugger/Cygdb.py b/contrib/tools/cython/Cython/Debugger/Cygdb.py new file mode 100644 index 0000000000..45f31ce6f7 --- /dev/null +++ b/contrib/tools/cython/Cython/Debugger/Cygdb.py @@ -0,0 +1,158 @@ +#!/usr/bin/env python + +""" +The Cython debugger + +The current directory should contain a directory named 'cython_debug', or a +path to the cython project directory should be given (the parent directory of +cython_debug). + +Additional gdb args can be provided only if a path to the project directory is +given. +""" + +import os +import sys +import glob +import tempfile +import textwrap +import subprocess +import optparse +import logging + +logger = logging.getLogger(__name__) + +def make_command_file(path_to_debug_info, prefix_code='', no_import=False): + if not no_import: + pattern = os.path.join(path_to_debug_info, + 'cython_debug', + 'cython_debug_info_*') + debug_files = glob.glob(pattern) + + if not debug_files: + sys.exit('%s.\nNo debug files were found in %s. Aborting.' % ( + usage, os.path.abspath(path_to_debug_info))) + + fd, tempfilename = tempfile.mkstemp() + f = os.fdopen(fd, 'w') + try: + f.write(prefix_code) + f.write(textwrap.dedent('''\ + # This is a gdb command file + # See https://sourceware.org/gdb/onlinedocs/gdb/Command-Files.html + + set breakpoint pending on + set print pretty on + + python + # Activate virtualenv, if we were launched from one + import os + virtualenv = os.getenv('VIRTUAL_ENV') + if virtualenv: + path_to_activate_this_py = os.path.join(virtualenv, 'bin', 'activate_this.py') + print("gdb command file: Activating virtualenv: %s; path_to_activate_this_py: %s" % ( + virtualenv, path_to_activate_this_py)) + with open(path_to_activate_this_py) as f: + exec(f.read(), dict(__file__=path_to_activate_this_py)) + + from Cython.Debugger import libcython, libpython + end + ''')) + + if no_import: + # don't do this, this overrides file command in .gdbinit + # f.write("file %s\n" % sys.executable) + pass + else: + path = os.path.join(path_to_debug_info, "cython_debug", "interpreter") + interpreter_file = open(path) + try: + interpreter = interpreter_file.read() + finally: + interpreter_file.close() + f.write("file %s\n" % interpreter) + f.write('\n'.join('cy import %s\n' % fn for fn in debug_files)) + f.write(textwrap.dedent('''\ + python + import sys + try: + gdb.lookup_type('PyModuleObject') + except RuntimeError: + sys.stderr.write( + 'Python was not compiled with debug symbols (or it was ' + 'stripped). Some functionality may not work (properly).\\n') + end + + source .cygdbinit + ''')) + finally: + f.close() + + return tempfilename + +usage = "Usage: cygdb [options] [PATH [-- GDB_ARGUMENTS]]" + +def main(path_to_debug_info=None, gdb_argv=None, no_import=False): + """ + Start the Cython debugger. This tells gdb to import the Cython and Python + extensions (libcython.py and libpython.py) and it enables gdb's pending + breakpoints. + + path_to_debug_info is the path to the Cython build directory + gdb_argv is the list of options to gdb + no_import tells cygdb whether it should import debug information + """ + parser = optparse.OptionParser(usage=usage) + parser.add_option("--gdb-executable", + dest="gdb", default='gdb', + help="gdb executable to use [default: gdb]") + parser.add_option("--verbose", "-v", + dest="verbosity", action="count", default=0, + help="Verbose mode. Multiple -v options increase the verbosity") + + (options, args) = parser.parse_args() + if path_to_debug_info is None: + if len(args) > 1: + path_to_debug_info = args[0] + else: + path_to_debug_info = os.curdir + + if gdb_argv is None: + gdb_argv = args[1:] + + if path_to_debug_info == '--': + no_import = True + + logging_level = logging.WARN + if options.verbosity == 1: + logging_level = logging.INFO + if options.verbosity >= 2: + logging_level = logging.DEBUG + logging.basicConfig(level=logging_level) + + logger.info("verbosity = %r", options.verbosity) + logger.debug("options = %r; args = %r", options, args) + logger.debug("Done parsing command-line options. path_to_debug_info = %r, gdb_argv = %r", + path_to_debug_info, gdb_argv) + + tempfilename = make_command_file(path_to_debug_info, no_import=no_import) + logger.info("Launching %s with command file: %s and gdb_argv: %s", + options.gdb, tempfilename, gdb_argv) + with open(tempfilename) as tempfile: + logger.debug('Command file (%s) contains: """\n%s"""', tempfilename, tempfile.read()) + logger.info("Spawning %s...", options.gdb) + p = subprocess.Popen([options.gdb, '-command', tempfilename] + gdb_argv) + logger.info("Spawned %s (pid %d)", options.gdb, p.pid) + while True: + try: + logger.debug("Waiting for gdb (pid %d) to exit...", p.pid) + ret = p.wait() + logger.debug("Wait for gdb (pid %d) to exit is done. Returned: %r", p.pid, ret) + except KeyboardInterrupt: + pass + else: + break + logger.debug("Closing temp command file with fd: %s", tempfile.fileno()) + logger.debug("Removing temp command file: %s", tempfilename) + os.remove(tempfilename) + logger.debug("Removed temp command file: %s", tempfilename) |