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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import logging
import yatest.common
logger = logging.getLogger(__name__)
SHORT_DUMP_COMMAND = "{gdb} {executable} {core_file} --eval-command='backtrace full' --batch -q"
LONG_DUMP_COMMAND = "{gdb} {executable} {core_file} --eval-command='thread apply all bt full' --batch -q"
def get_gdb():
return yatest.common.gdb_path()
def run_gdb_command(command, stdout_file, stderr_file):
logger.debug("Running gdb command %s" % command)
with open(stdout_file, "w") as out, open(stderr_file, "w") as err:
yatest.common.process.execute(
command,
check_exit_code=True,
wait=True,
shell=True,
stdout=out,
stderr=err
)
def dump_traceback(executable, core_file, output_file):
"""
Dumps traceback if its possible
:param executable: binary for gdb
:param core_file: core file for gdb
:param output_file: file to dump traceback to, also dump full traceback to <output_file + ".full">
:return: string tuple (short_backtrace, full_backtrace)
"""
try:
gdb = get_gdb()
short_dump_command = SHORT_DUMP_COMMAND.format(gdb=gdb, executable=executable, core_file=core_file)
long_dump_command = LONG_DUMP_COMMAND.format(gdb=gdb, executable=executable, core_file=core_file)
run_gdb_command(short_dump_command, output_file, output_file + '.err')
output_file_full = output_file + ".full"
output_file_full_err = output_file_full + '.err'
run_gdb_command(long_dump_command, output_file_full, output_file_full_err)
except Exception:
logger.exception("Failed to print trace")
return '', ''
short_backtrace = ''
full_backtrace = ''
with open(output_file) as o, open(output_file_full) as e:
short_backtrace = o.read()
full_backtrace = e.read()
return short_backtrace, full_backtrace
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