import signal
import os
-import pexpect
+import sys
import traceback
-from log import *
+from log import RED, single_line_delim, double_line_delim
+from debug import spawn_gdb
+from subprocess import check_output, CalledProcessError
+from util import check_core_path
class Hook(object):
self.testcase = testcase
self.logger = testcase.logger
- def spawn_gdb(self, gdb_path, core_path):
- gdb_cmdline = gdb_path + ' ' + self.testcase.vpp_bin + ' ' + core_path
- gdb = pexpect.spawn(gdb_cmdline)
- gdb.interact()
- try:
- gdb.terminate(True)
- except:
- pass
- if gdb.isalive():
- raise Exception("GDB refused to die...")
-
def on_crash(self, core_path):
if self.testcase.debug_core:
- gdb_path = '/usr/bin/gdb'
- if os.path.isfile(gdb_path) and os.access(gdb_path, os.X_OK):
- # automatically attach gdb
- self.spawn_gdb(gdb_path, core_path)
- return
- else:
+ # notify parent process that we're handling a core file
+ open('%s/_core_handled' % self.testcase.tempdir, 'a').close()
+ spawn_gdb(self.testcase.vpp_bin, core_path, self.logger)
+ else:
+ self.logger.error("Core file present, debug with: gdb %s %s" %
+ (self.testcase.vpp_bin, core_path))
+ check_core_path(self.logger, core_path)
+ self.logger.error("Running `file %s':" % core_path)
+ try:
+ info = check_output(["file", core_path])
+ self.logger.error(info)
+ except CalledProcessError as e:
self.logger.error(
- "Debugger '%s' does not exist or is not an executable.." %
- gdb_path)
-
- self.logger.critical('core file present, debug with: gdb ' +
- self.testcase.vpp_bin + ' ' + core_path)
+ "Could not run `file' utility on core-file, "
+ "rc=%s" % e.returncode)
+ pass
def poll_vpp(self):
"""
signaldict = dict(
(k, v) for v, k in reversed(sorted(signal.__dict__.items()))
if v.startswith('SIG') and not v.startswith('SIG_'))
- msg = "VPP subprocess died unexpectedly with returncode %d [%s]" % (
- self.testcase.vpp.returncode,
- signaldict[abs(self.testcase.vpp.returncode)])
+
+ if self.testcase.vpp.returncode in signaldict:
+ s = signaldict[abs(self.testcase.vpp.returncode)]
+ else:
+ s = "unknown"
+ msg = "VPP subprocess died unexpectedly with returncode %d [%s]" %\
+ (self.testcase.vpp.returncode, s)
self.logger.critical(msg)
core_path = self.testcase.tempdir + '/core'
if os.path.isfile(core_path):
self.testcase.vpp_dead = True
raise VppDiedError(msg)
- def after_api(self, api_name, api_args):
+ def before_api(self, api_name, api_args):
"""
- Check if VPP died after executing an API
+ Check if VPP died before executing an API
:param api_name: name of the API
:param api_args: tuple containing the API arguments
:raises VppDiedError: exception if VPP is not running anymore
"""
- super(PollHook, self).after_api(api_name, api_args)
+ super(PollHook, self).before_api(api_name, api_args)
self.poll_vpp()
- def after_cli(self, cli):
+ def before_cli(self, cli):
"""
- Check if VPP died after executing a CLI
+ Check if VPP died before executing a CLI
:param cli: CLI string
:raises Exception: exception if VPP is not running anymore
"""
- super(PollHook, self).after_cli(cli)
+ super(PollHook, self).before_cli(cli)
self.poll_vpp()
print("Calls in/below that stack frame will be not be stepped anymore")
print(single_line_delim)
while True:
- choice = raw_input("Enter your choice, if any, and press ENTER to "
- "continue running the testcase...")
+ choice = sys.stdin.readline(
+ "Enter your choice, if any, and press ENTER to continue "
+ "running the testcase...")
if choice == "":
choice = None
try:
if choice is not None:
num = int(choice)
- except:
+ except TypeError:
print("Invalid input")
continue
if choice is not None and (num < 0 or num >= len(stack)):