srs-enb: adds support to the malloc interceptor.

Adds support to the malloc interceptor for the SRS eNodeB. This interceptor will generate a log file that lists the mallocs, reallocs and frees produced by the srsenb.

Change-Id: I0078020468f58bdd70b0b5de879eb58192f947a6
changes/84/24284/3
AlaiaL 2 years ago committed by Alejandro Leal Conejos
parent 18cd26f58d
commit 855e712bc0
  1. 29
      src/osmo_gsm_tester/obj/enb_srs.py
  2. 10
      src/osmo_gsm_tester/obj/run_node.py
  3. 3
      sysmocom/scenarios/cfg-enb-malloc-interceptor.conf

@ -37,6 +37,7 @@ def on_register_schemas():
schema.register_resource_schema('enb', resource_schema)
config_schema = {
'enable_malloc_interceptor': schema.BOOL_STR,
'enable_pcap': schema.BOOL_STR,
'enable_tracing': schema.BOOL_STR,
'enable_ul_qam64': schema.BOOL_STR,
@ -60,6 +61,7 @@ class srsENB(enb.eNodeB, srslte_common):
S1AP_PCAPFILE = 'srsenb_s1ap.pcap'
TRACINGFILE = 'srsenb_tracing.log'
METRICSFILE = 'srsenb_metrics.csv'
INTERCEPTORFILE = 'srsenb_minterceptor.log'
def __init__(self, testenv, conf):
super().__init__(testenv, conf, srsENB.BINFILE)
@ -72,6 +74,7 @@ class srsENB(enb.eNodeB, srslte_common):
self.config_rr_file = None
self.config_drb_file = None
self.tracing_file = None
self.interceptor_file = None
self.log_file = None
self.pcap_file = None
self.s1ap_pcap_file = None
@ -87,9 +90,11 @@ class srsENB(enb.eNodeB, srslte_common):
self.remote_s1ap_pcap_file = None
self.remote_tracing_file = None
self.remote_metrics_file = None
self.remote_interceptor_file = None
self.enable_pcap = False
self.enable_ul_qam64 = False
self.enable_tracing = False
self.enable_malloc_interceptor = False
self.metrics_file = None
self.have_metrics_file = False
self.stop_sleep_time = 6 # We require at most 5s to stop
@ -134,6 +139,12 @@ class srsENB(enb.eNodeB, srslte_common):
except Exception as e:
self.log(repr(e))
if self.enable_malloc_interceptor:
try:
self.rem_host.scpfrom('scp-back-interceptor', self.remote_interceptor_file, self.interceptor_file)
except Exception as e:
self.log(repr(e))
# Collect KPIs for each TC
self.testenv.test().set_kpis(self.get_kpi_tree())
# Clean up for parent class:
@ -244,10 +255,23 @@ class srsENB(enb.eNodeB, srslte_common):
def start_remotely(self):
remote_env = { 'LD_LIBRARY_PATH': self.remote_inst.child('lib') }
# Add the malloc interceptor env variable when it's required.
if self.enable_malloc_interceptor:
path = self._run_node.lib_path_malloc_interceptor()
if not path:
raise log.Error('Could not get the environment variables. Aborting')
self.log(f'Setting LD_PRELOAD var to value: {path}')
remote_env['LD_PRELOAD'] = path
remote_binary = self.remote_inst.child('bin', srsENB.BINFILE)
args = (remote_binary, self.remote_config_file)
args += tuple(self._additional_args)
# Force the output of the malloc interceptor to the interceptor_file.
if self.enable_malloc_interceptor:
args += tuple([f" 2> {self.remote_interceptor_file}"])
self.process = self.rem_host.RemoteProcessSafeExit(srsENB.BINFILE, self.remote_run_dir, args, remote_env=remote_env, wait_time_sec=7)
self.testenv.remember_to_stop(self.process)
self.process.launch()
@ -287,6 +311,7 @@ class srsENB(enb.eNodeB, srslte_common):
self.s1ap_pcap_file = self.run_dir.child(srsENB.S1AP_PCAPFILE)
self.metrics_file = self.run_dir.child(srsENB.METRICSFILE)
self.tracing_file = self.run_dir.child(srsENB.TRACINGFILE)
self.interceptor_file = self.run_dir.child(srsENB.INTERCEPTORFILE)
if not self._run_node.is_local():
self.rem_host = remote.RemoteHost(self.run_dir, self._run_node.ssh_user(), self._run_node.ssh_addr())
@ -310,6 +335,7 @@ class srsENB(enb.eNodeB, srslte_common):
self.remote_s1ap_pcap_file = self.remote_run_dir.child(srsENB.S1AP_PCAPFILE)
self.remote_metrics_file = self.remote_run_dir.child(srsENB.METRICSFILE)
self.remote_tracing_file = self.remote_run_dir.child(srsENB.TRACINGFILE)
self.remote_interceptor_file = self.remote_run_dir.child(srsENB.INTERCEPTORFILE)
values = super().configure(['srsenb'])
@ -331,6 +357,9 @@ class srsENB(enb.eNodeB, srslte_common):
s1ap_pcap_filename=s1ap_pcapfile,
)))
# Retrieve the malloc interceptor option.
self.enable_malloc_interceptor = util.str2bool(values['enb'].get('enable_malloc_interceptor', 'false'))
# Convert parsed boolean string to Python boolean:
self.enable_pcap = util.str2bool(values['enb'].get('enable_pcap', 'false'))
config.overlay(values, dict(enb={'enable_pcap': self.enable_pcap}))

@ -30,7 +30,7 @@ class RunNode(log.Origin):
T_LOCAL = 'local'
T_REM_SSH = 'ssh'
def __init__(self, type=None, run_addr=None, ssh_user=None, ssh_addr=None, run_label=None, label=None, ssh_port=None, adb_serial_id=None):
def __init__(self, type=None, run_addr=None, ssh_user=None, ssh_addr=None, run_label=None, label=None, ssh_port=None, adb_serial_id=None, lib_path_malloc_interceptor=None):
super().__init__(log.C_RUN, 'runnode')
self._type = type
self._run_addr = run_addr
@ -40,6 +40,7 @@ class RunNode(log.Origin):
self._label = label
self._ssh_port = ssh_port
self._adb_serial_id = adb_serial_id
self._lib_path_malloc_interceptor = lib_path_malloc_interceptor
if not self._type:
raise log.Error('run_type not set')
if not self._run_addr:
@ -59,7 +60,8 @@ class RunNode(log.Origin):
return cls(conf.get('run_type', None), conf.get('run_addr', None),
conf.get('ssh_user', None), conf.get('ssh_addr', None),
conf.get('run_label', None), conf.get('label', None),
conf.get('ssh_port', None), conf.get('adb_serial_id', None))
conf.get('ssh_port', None), conf.get('adb_serial_id', None),
conf.get('lib_path_malloc_interceptor', None))
@classmethod
def schema(cls):
@ -72,6 +74,7 @@ class RunNode(log.Origin):
'label': schema.STR,
'ssh_port': schema.STR,
'adb_serial_id': schema.STR,
'lib_path_malloc_interceptor': schema.STR,
}
return resource_schema
@ -105,4 +108,7 @@ class RunNode(log.Origin):
def adb_serial_id(self):
return self._adb_serial_id
def lib_path_malloc_interceptor(self):
return self._lib_path_malloc_interceptor
# vim: expandtab tabstop=4 shiftwidth=4

@ -0,0 +1,3 @@
config:
enb:
enable_malloc_interceptor: true
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