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Subject[PATCH 2/3] perf script: Add callchain to generic and tracepoint events
[PATCH 2/3]  perf script: Add callchain to generic and tracepoint events.  Since
this alters the interface for the python scripts, also adjust the script
generation and the provided scripts.

Signed-off-by: Joseph Schuchart <joseph.schuchart@tu-dresden.de>
Acked-by: Thomas Ilsche <thomas.ilsche@tu-dresden.de>
---
.../python/Perf-Trace-Util/lib/Perf/Trace/Core.py | 3 +-
tools/perf/scripts/python/check-perf-trace.py | 4 +-
.../perf/scripts/python/failed-syscalls-by-pid.py | 2 +-
tools/perf/scripts/python/futex-contention.py | 4 +-
tools/perf/scripts/python/net_dropmonitor.py | 2 +-
tools/perf/scripts/python/netdev-times.py | 26 ++---
tools/perf/scripts/python/sched-migration.py | 41 ++++----
tools/perf/scripts/python/sctop.py | 2 +-
tools/perf/scripts/python/syscall-counts-by-pid.py | 2 +-
tools/perf/scripts/python/syscall-counts.py | 2 +-
.../util/scripting-engines/trace-event-python.c | 106 ++++++++++++++++++++-
11 files changed, 146 insertions(+), 48 deletions(-)

diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
index de7211e..38dfb72 100644
--- a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
+++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
@@ -107,12 +107,13 @@ def taskState(state):

class EventHeaders:
def __init__(self, common_cpu, common_secs, common_nsecs,
- common_pid, common_comm):
+ common_pid, common_comm, common_callchain):
self.cpu = common_cpu
self.secs = common_secs
self.nsecs = common_nsecs
self.pid = common_pid
self.comm = common_comm
+ self.callchain = common_callchain

def ts(self):
return (self.secs * (10 ** 9)) + self.nsecs
diff --git a/tools/perf/scripts/python/check-perf-trace.py b/tools/perf/scripts/python/check-perf-trace.py
index 4647a76..334599c 100644
--- a/tools/perf/scripts/python/check-perf-trace.py
+++ b/tools/perf/scripts/python/check-perf-trace.py
@@ -27,7 +27,7 @@ def trace_end():

def irq__softirq_entry(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- vec):
+ common_callchain, vec):
print_header(event_name, common_cpu, common_secs, common_nsecs,
common_pid, common_comm)

@@ -38,7 +38,7 @@ def irq__softirq_entry(event_name, context, common_cpu,

def kmem__kmalloc(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- call_site, ptr, bytes_req, bytes_alloc,
+ common_callchain, call_site, ptr, bytes_req, bytes_alloc,
gfp_flags):
print_header(event_name, common_cpu, common_secs, common_nsecs,
common_pid, common_comm)
diff --git a/tools/perf/scripts/python/failed-syscalls-by-pid.py b/tools/perf/scripts/python/failed-syscalls-by-pid.py
index 266a836..cafeff3 100644
--- a/tools/perf/scripts/python/failed-syscalls-by-pid.py
+++ b/tools/perf/scripts/python/failed-syscalls-by-pid.py
@@ -39,7 +39,7 @@ def trace_end():

def raw_syscalls__sys_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- id, ret):
+ common_callchain, id, ret):
if (for_comm and common_comm != for_comm) or \
(for_pid and common_pid != for_pid ):
return
diff --git a/tools/perf/scripts/python/futex-contention.py b/tools/perf/scripts/python/futex-contention.py
index 11e70a3..0f5cf43 100644
--- a/tools/perf/scripts/python/futex-contention.py
+++ b/tools/perf/scripts/python/futex-contention.py
@@ -21,7 +21,7 @@ thread_blocktime = {}
lock_waits = {} # long-lived stats on (tid,lock) blockage elapsed time
process_names = {} # long-lived pid-to-execname mapping

-def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm,
+def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
nr, uaddr, op, val, utime, uaddr2, val3):
cmd = op & FUTEX_CMD_MASK
if cmd != FUTEX_WAIT:
@@ -31,7 +31,7 @@ def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm,
thread_thislock[tid] = uaddr
thread_blocktime[tid] = nsecs(s, ns)

-def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm,
+def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
nr, ret):
if thread_blocktime.has_key(tid):
elapsed = nsecs(s, ns) - thread_blocktime[tid]
diff --git a/tools/perf/scripts/python/net_dropmonitor.py b/tools/perf/scripts/python/net_dropmonitor.py
index b574059..0b6ce8c 100755
--- a/tools/perf/scripts/python/net_dropmonitor.py
+++ b/tools/perf/scripts/python/net_dropmonitor.py
@@ -66,7 +66,7 @@ def trace_end():
print_drop_table()

# called from perf, when it finds a correspoinding event
-def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm,
+def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, location, protocol):
slocation = str(location)
try:
diff --git a/tools/perf/scripts/python/netdev-times.py b/tools/perf/scripts/python/netdev-times.py
index 9aa0a32..4d21ef2 100644
--- a/tools/perf/scripts/python/netdev-times.py
+++ b/tools/perf/scripts/python/netdev-times.py
@@ -224,75 +224,75 @@ def trace_end():
(len(rx_skb_list), of_count_rx_skb_list)

# called from perf, when it finds a correspoinding event
-def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, vec):
+def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, callchain, vec):
if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX":
return
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
all_event_list.append(event_info)

-def irq__softirq_exit(name, context, cpu, sec, nsec, pid, comm, vec):
+def irq__softirq_exit(name, context, cpu, sec, nsec, pid, comm, callchain, vec):
if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX":
return
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
all_event_list.append(event_info)

-def irq__softirq_raise(name, context, cpu, sec, nsec, pid, comm, vec):
+def irq__softirq_raise(name, context, cpu, sec, nsec, pid, comm, callchain, vec):
if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX":
return
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
all_event_list.append(event_info)

def irq__irq_handler_entry(name, context, cpu, sec, nsec, pid, comm,
- irq, irq_name):
+ callchain, irq, irq_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
irq, irq_name)
all_event_list.append(event_info)

-def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, irq, ret):
+def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, callchain, irq, ret):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, irq, ret)
all_event_list.append(event_info)

-def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, napi, dev_name):
+def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, callchain, napi, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
napi, dev_name)
all_event_list.append(event_info)

-def net__netif_receive_skb(name, context, cpu, sec, nsec, pid, comm, skbaddr,
+def net__netif_receive_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr,
skblen, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, dev_name)
all_event_list.append(event_info)

-def net__netif_rx(name, context, cpu, sec, nsec, pid, comm, skbaddr,
+def net__netif_rx(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr,
skblen, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, dev_name)
all_event_list.append(event_info)

-def net__net_dev_queue(name, context, cpu, sec, nsec, pid, comm,
+def net__net_dev_queue(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, skblen, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, dev_name)
all_event_list.append(event_info)

-def net__net_dev_xmit(name, context, cpu, sec, nsec, pid, comm,
+def net__net_dev_xmit(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, skblen, rc, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, rc ,dev_name)
all_event_list.append(event_info)

-def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm,
+def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, protocol, location):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, protocol, location)
all_event_list.append(event_info)

-def skb__consume_skb(name, context, cpu, sec, nsec, pid, comm, skbaddr):
+def skb__consume_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr)
all_event_list.append(event_info)

-def skb__skb_copy_datagram_iovec(name, context, cpu, sec, nsec, pid, comm,
+def skb__skb_copy_datagram_iovec(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, skblen):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen)
diff --git a/tools/perf/scripts/python/sched-migration.py b/tools/perf/scripts/python/sched-migration.py
index 74d55ec..de66cb3 100644
--- a/tools/perf/scripts/python/sched-migration.py
+++ b/tools/perf/scripts/python/sched-migration.py
@@ -369,93 +369,92 @@ def trace_end():

def sched__sched_stat_runtime(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, runtime, vruntime):
+ common_callchain, comm, pid, runtime, vruntime):
pass

def sched__sched_stat_iowait(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, delay):
+ common_callchain, comm, pid, delay):
pass

def sched__sched_stat_sleep(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, delay):
+ common_callchain, comm, pid, delay):
pass

def sched__sched_stat_wait(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, delay):
+ common_callchain, comm, pid, delay):
pass

def sched__sched_process_fork(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- parent_comm, parent_pid, child_comm, child_pid):
+ common_callchain, parent_comm, parent_pid, child_comm, child_pid):
pass

def sched__sched_process_wait(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, prio):
+ common_callchain, comm, pid, prio):
pass

def sched__sched_process_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, prio):
+ common_callchain, comm, pid, prio):
pass

def sched__sched_process_free(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, prio):
+ common_callchain, comm, pid, prio):
pass

def sched__sched_migrate_task(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, prio, orig_cpu,
+ common_callchain, comm, pid, prio, orig_cpu,
dest_cpu):
headers = EventHeaders(common_cpu, common_secs, common_nsecs,
- common_pid, common_comm)
+ common_pid, common_comm, common_callchain)
parser.migrate(headers, pid, prio, orig_cpu, dest_cpu)

def sched__sched_switch(event_name, context, common_cpu,
- common_secs, common_nsecs, common_pid, common_comm,
+ common_secs, common_nsecs, common_pid, common_comm, common_callchain,
prev_comm, prev_pid, prev_prio, prev_state,
next_comm, next_pid, next_prio):

headers = EventHeaders(common_cpu, common_secs, common_nsecs,
- common_pid, common_comm)
+ common_pid, common_comm, common_callchain)
parser.sched_switch(headers, prev_comm, prev_pid, prev_prio, prev_state,
next_comm, next_pid, next_prio)

def sched__sched_wakeup_new(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, prio, success,
+ common_callchain, comm, pid, prio, success,
target_cpu):
headers = EventHeaders(common_cpu, common_secs, common_nsecs,
- common_pid, common_comm)
+ common_pid, common_comm, common_callchain)
parser.wake_up(headers, comm, pid, success, target_cpu, 1)

def sched__sched_wakeup(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, prio, success,
+ common_callchain, comm, pid, prio, success,
target_cpu):
headers = EventHeaders(common_cpu, common_secs, common_nsecs,
- common_pid, common_comm)
+ common_pid, common_comm, common_callchain)
parser.wake_up(headers, comm, pid, success, target_cpu, 0)

def sched__sched_wait_task(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid, prio):
+ common_callchain, comm, pid, prio):
pass

def sched__sched_kthread_stop_ret(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- ret):
+ common_callchain, ret):
pass

def sched__sched_kthread_stop(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- comm, pid):
+ common_callchain, comm, pid):
pass

-def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs,
- common_pid, common_comm):
+def trace_unhandled(event_name, context, event_fields_dict):
pass
diff --git a/tools/perf/scripts/python/sctop.py b/tools/perf/scripts/python/sctop.py
index c9f3058..61621b9 100644
--- a/tools/perf/scripts/python/sctop.py
+++ b/tools/perf/scripts/python/sctop.py
@@ -44,7 +44,7 @@ def trace_begin():

def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- id, args):
+ common_callchain, id, args):
if for_comm is not None:
if common_comm != for_comm:
return
diff --git a/tools/perf/scripts/python/syscall-counts-by-pid.py b/tools/perf/scripts/python/syscall-counts-by-pid.py
index cf2054c..daf314c 100644
--- a/tools/perf/scripts/python/syscall-counts-by-pid.py
+++ b/tools/perf/scripts/python/syscall-counts-by-pid.py
@@ -38,7 +38,7 @@ def trace_end():

def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- id, args):
+ common_callchain, id, args):

if (for_comm and common_comm != for_comm) or \
(for_pid and common_pid != for_pid ):
diff --git a/tools/perf/scripts/python/syscall-counts.py b/tools/perf/scripts/python/syscall-counts.py
index 92b2938..e66a773 100644
--- a/tools/perf/scripts/python/syscall-counts.py
+++ b/tools/perf/scripts/python/syscall-counts.py
@@ -35,7 +35,7 @@ def trace_end():

def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
- id, args):
+ common_callchain, id, args):
if for_comm is not None:
if common_comm != for_comm:
return
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 631aa85..dae78e4 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -32,6 +32,7 @@
#include "../event.h"
#include "../thread.h"
#include "../trace-event.h"
+#include "../machine.h"

PyMODINIT_FUNC initperf_trace_context(void);

@@ -237,12 +238,90 @@ static inline struct event_format *find_cache_event(struct perf_evsel *evsel)
return event;
}

+
+static PyObject *python_process_callchain(struct perf_sample *sample,
+ struct perf_evsel *evsel,
+ struct addr_location *al)
+{
+ PyObject *pylist;
+
+ pylist = PyList_New(0);
+ if (!pylist)
+ Py_FatalError("couldn't create Python list");
+
+ if (!symbol_conf.use_callchain || !sample->callchain)
+ goto exit;
+
+ if (machine__resolve_callchain(al->machine, evsel, al->thread,
+ sample, NULL, NULL,
+ PERF_MAX_STACK_DEPTH) != 0) {
+ pr_err("Failed to resolve callchain. Skipping\n");
+ goto exit;
+ }
+ callchain_cursor_commit(&callchain_cursor);
+
+
+ while (1) {
+ PyObject *pyelem;
+ struct callchain_cursor_node *node;
+ node = callchain_cursor_current(&callchain_cursor);
+ if (!node)
+ break;
+
+ pyelem = PyDict_New();
+ if (!pyelem)
+ Py_FatalError("couldn't create Python dictionary");
+
+
+ pydict_set_item_string_decref(pyelem, "ip",
+ PyLong_FromUnsignedLongLong(node->ip));
+
+ if (node->sym) {
+ PyObject *pysym = PyDict_New();
+ if (!pysym)
+ Py_FatalError("couldn't create Python dictionary");
+ pydict_set_item_string_decref(pysym, "start",
+ PyLong_FromUnsignedLongLong(node->sym->start));
+ pydict_set_item_string_decref(pysym, "end",
+ PyLong_FromUnsignedLongLong(node->sym->end));
+ pydict_set_item_string_decref(pysym, "binding",
+ PyInt_FromLong(node->sym->binding));
+ pydict_set_item_string_decref(pysym, "name",
+ PyString_FromStringAndSize(node->sym->name,
+ node->sym->namelen));
+ pydict_set_item_string_decref(pyelem, "sym", pysym);
+ }
+
+ if (node->map) {
+ struct map *map = node->map;
+ const char *dsoname = "[unknown]";
+ if (map && map->dso && (map->dso->name || map->dso->long_name)) {
+ if (symbol_conf.show_kernel_path && map->dso->long_name)
+ dsoname = map->dso->long_name;
+ else if (map->dso->name)
+ dsoname = map->dso->name;
+ }
+ pydict_set_item_string_decref(pyelem, "dso",
+ PyString_FromString(dsoname));
+ }
+
+ callchain_cursor_advance(&callchain_cursor);
+ PyList_Append(pylist, pyelem);
+ Py_DECREF(pyelem);
+ }
+
+exit:
+ return pylist;
+}
+
+
static void python_process_tracepoint(struct perf_sample *sample,
struct perf_evsel *evsel,
struct thread *thread,
struct addr_location *al)
{
- PyObject *handler, *retval, *context, *t, *obj, *dict = NULL;
+ PyObject *handler, *retval, *context, *t, *obj, *callchain;
+ PyObject *dict = NULL;
static char handler_name[256];
struct format_field *field;
unsigned long long val;
@@ -286,18 +365,23 @@ static void python_process_tracepoint(struct perf_sample *sample,
PyTuple_SetItem(t, n++, PyString_FromString(handler_name));
PyTuple_SetItem(t, n++, context);

+ /* ip unwinding */
+ callchain = python_process_callchain(sample, evsel, al);
+
if (handler) {
PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
PyTuple_SetItem(t, n++, PyInt_FromLong(s));
PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
PyTuple_SetItem(t, n++, PyInt_FromLong(pid));
PyTuple_SetItem(t, n++, PyString_FromString(comm));
+ PyTuple_SetItem(t, n++, callchain);
} else {
pydict_set_item_string_decref(dict, "common_cpu", PyInt_FromLong(cpu));
pydict_set_item_string_decref(dict, "common_s", PyInt_FromLong(s));
pydict_set_item_string_decref(dict, "common_ns", PyInt_FromLong(ns));
pydict_set_item_string_decref(dict, "common_pid", PyInt_FromLong(pid));
pydict_set_item_string_decref(dict, "common_comm", PyString_FromString(comm));
+ pydict_set_item_string_decref(dict, "common_callchain", callchain);
}
for (field = event->format.fields; field; field = field->next) {
if (field->flags & FIELD_IS_STRING) {
@@ -330,6 +414,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
pydict_set_item_string_decref(dict, field->name, obj);

}
+
if (!handler)
PyTuple_SetItem(t, n++, dict);

@@ -361,7 +446,7 @@ static void python_process_general_event(struct perf_sample *sample,
struct thread *thread,
struct addr_location *al)
{
- PyObject *handler, *retval, *t, *dict;
+ PyObject *handler, *retval, *t, *dict, *callchain;
static char handler_name[64];
unsigned n = 0;

@@ -401,6 +486,10 @@ static void python_process_general_event(struct perf_sample *sample,
PyString_FromString(al->sym->name));
}

+ /* ip unwinding */
+ callchain = python_process_callchain(sample, evsel, al);
+ pydict_set_item_string_decref(dict, "callchain", callchain);
+
PyTuple_SetItem(t, n++, dict);
if (_PyTuple_Resize(&t, n) == -1)
Py_FatalError("error resizing Python tuple");
@@ -597,6 +686,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, "common_nsecs, ");
fprintf(ofp, "common_pid, ");
fprintf(ofp, "common_comm,\n\t");
+ fprintf(ofp, "common_callchain, ");

not_first = 0;
count = 0;
@@ -640,7 +730,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, "%%u");
}

- fprintf(ofp, "\\n\" %% \\\n\t\t(");
+ fprintf(ofp, "\" %% \\\n\t\t(");

not_first = 0;
count = 0;
@@ -676,7 +766,15 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, "%s", f->name);
}

- fprintf(ofp, "),\n\n");
+ fprintf(ofp, ")\n\n");
+
+ fprintf(ofp, "\t\tfor node in common_callchain:");
+ fprintf(ofp, "\n\t\t\tif 'sym' in node:");
+ fprintf(ofp, "\n\t\t\t\tprint \"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name'])");
+ fprintf(ofp, "\n\t\t\telse:");
+ fprintf(ofp, "\n\t\t\t\tprint \"\t[%%x]\" %% (node['ip'])\n\n");
+ fprintf(ofp, "\t\tprint \"\\n\"\n\n");
+
}

fprintf(ofp, "def trace_unhandled(event_name, context, "
--
1.8.1.2

[unhandled content-type:application/pkcs7-signature]
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