def generate(events, backend, group):
out('/* This file is autogenerated by tracetool, do not edit. */',
'')
for event_id, e in enumerate(events):
if 'disable' in e.properties:
continue
out('probe %(probeprefix)s.simpletrace.%(name)s = %(probeprefix)s.%(name)s ?',
'{',
probeprefix=probeprefix(),
name=e.name)
# Calculate record size
sizes = ['24'] # sizeof(TraceRecord)
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
out(' try {',
' arg%(name)s_str = %(name)s ? user_string_n(%(name)s, 512) : "<null>"',
' } catch {}',
' arg%(name)s_len = strlen(arg%(name)s_str)',
name=name)
sizes.append('4 + arg%s_len' % name)
else:
sizes.append('8')
sizestr = ' + '.join(sizes)
# Generate format string and value pairs for record header and arguments
fields = [('8b', str(event_id)),
('8b', 'gettimeofday_ns()'),
('4b', sizestr),
('4b', 'pid()')]
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
fields.extend([('4b', 'arg%s_len' % name),
('.*s', 'arg%s_len, arg%s_str' % (name, name))])
else:
fields.append(('8b', name))
# Emit the entire record in a single SystemTap printf()
fmt_str = '%'.join(fmt for fmt, _ in fields)
arg_str = ', '.join(arg for _, arg in fields)
out(' printf("%%8b%%%(fmt_str)s", 1, %(arg_str)s)',
fmt_str=fmt_str, arg_str=arg_str)
out('}')
out()
def get_record(edict, idtoname, rechdr, fobj):
"""Deserialize a trace record from a file into a tuple
(name, timestamp, pid, arg1, ..., arg6)."""
if rechdr is None:
return None
if rechdr[0] != dropped_event_id:
event_id = rechdr[0]
name = idtoname[event_id]
rec = (name, rechdr[1], rechdr[3])
try:
event = edict[name]
except KeyError, e:
import sys
sys.stderr.write('%s event is logged but is not declared ' \
'in the trace events file, try using ' \
'trace-events-all instead.\n' % str(e))
sys.exit(1)
for type, name in event.args:
if is_string(type):
l = fobj.read(4)
(len, ) = struct.unpack('=L', l)
s = fobj.read(len)
rec = rec + (s, )
else:
(value, ) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value, )
def get_record(edict, idtoname, rechdr, fobj):
"""Deserialize a trace record from a file into a tuple
(name, timestamp, pid, arg1, ..., arg6)."""
if rechdr is None:
return None
if rechdr[0] != dropped_event_id:
event_id = rechdr[0]
name = idtoname[event_id]
rec = (name, rechdr[1], rechdr[3])
try:
event = edict[name]
except KeyError, e:
import sys
sys.stderr.write('%s event is logged but is not declared ' \
'in the trace events file, try using ' \
'trace-events-all instead.\n' % str(e))
sys.exit(1)
for type, name in event.args:
if is_string(type):
l = fobj.read(4)
(len,) = struct.unpack('=L', l)
s = fobj.read(len)
rec = rec + (s,)
else:
(value,) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value,)
def generate(events, backend, group):
out('/* This file is autogenerated by tracetool, do not edit. */', '')
for event_id, e in enumerate(events):
if 'disable' in e.properties:
continue
out('probe %(probeprefix)s.log.%(name)s = %(probeprefix)s.%(name)s ?',
'{',
probeprefix=probeprefix(),
name=e.name)
# Get references to userspace strings
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
out(' try {',
' arg%(name)s_str = %(name)s ? ' +
'user_string_n(%(name)s, 512) : "<null>"',
' } catch {}',
name=name)
# Determine systemtap's view of variable names
fields = ["pid()", "gettimeofday_ns()"]
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
fields.append("arg" + name + "_str")
else:
fields.append(name)
# Emit the entire record in a single SystemTap printf()
arg_str = ', '.join(arg for arg in fields)
fmt_str = "%d@%d " + e.name + " " + c_fmt_to_stap(e.fmt) + "\\n"
out(' printf("%(fmt_str)s", %(arg_str)s)',
fmt_str=fmt_str,
arg_str=arg_str)
out('}')
out()
def generate(events, backend, group):
out('/* This file is autogenerated by tracetool, do not edit. */',
'')
for event_id, e in enumerate(events):
if 'disable' in e.properties:
continue
out('probe %(probeprefix)s.log.%(name)s = %(probeprefix)s.%(name)s ?',
'{',
probeprefix=probeprefix(),
name=e.name)
# Get references to userspace strings
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
out(' try {',
' arg%(name)s_str = %(name)s ? ' +
'user_string_n(%(name)s, 512) : "<null>"',
' } catch {}',
name=name)
# Determine systemtap's view of variable names
fields = ["pid()", "gettimeofday_ns()"]
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
fields.append("arg" + name + "_str")
else:
fields.append(name)
# Emit the entire record in a single SystemTap printf()
arg_str = ', '.join(arg for arg in fields)
fmt_str = "%d@%d " + e.name + " " + c_fmt_to_stap(e.fmt) + "\\n"
out(' printf("%(fmt_str)s", %(arg_str)s)',
fmt_str=fmt_str, arg_str=arg_str)
out('}')
out()
def catchall(self, event, rec):
i = 1
timestamp = rec[1]
if self.last_timestamp is None:
self.last_timestamp = timestamp
delta_ns = timestamp - self.last_timestamp
self.last_timestamp = timestamp
fields = [event.name, '%0.3f' % (delta_ns / 1000.0)]
for type, name in event.args:
if is_string(type):
fields.append('%s=%s' % (name, rec[i + 1]))
else:
fields.append('%s=0x%x' % (name, rec[i + 1]))
i += 1
print ' '.join(fields)
def catchall(self, event, rec):
i = 1
timestamp = rec[1]
if self.last_timestamp is None:
self.last_timestamp = timestamp
delta_ns = timestamp - self.last_timestamp
self.last_timestamp = timestamp
fields = [event.name, '%0.3f' % (delta_ns / 1000.0)]
for type, name in event.args:
if is_string(type):
fields.append('%s=%s' % (name, rec[i + 1]))
else:
fields.append('%s=0x%x' % (name, rec[i + 1]))
i += 1
print ' '.join(fields)
def get_record(edict, rechdr, fobj):
"""Deserialize a trace record from a file into a tuple (event_num, timestamp, arg1, ..., arg6)."""
if rechdr is None:
return None
rec = (rechdr[0], rechdr[1])
if rechdr[0] != dropped_event_id:
event_id = rechdr[0]
event = edict[event_id]
for type, name in event.args:
if is_string(type):
l = fobj.read(4)
(len,) = struct.unpack('=L', l)
s = fobj.read(len)
rec = rec + (s,)
else:
(value,) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value,)
else:
(value,) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value,)
return rec
def get_record(edict, rechdr, fobj):
"""Deserialize a trace record from a file into a tuple (event_num, timestamp, arg1, ..., arg6)."""
if rechdr is None:
return None
rec = (rechdr[0], rechdr[1])
if rechdr[0] != dropped_event_id:
event_id = rechdr[0]
event = edict[event_id]
for type, name in event.args:
if is_string(type):
l = fobj.read(4)
(len,) = struct.unpack('=L', l)
s = fobj.read(len)
rec = rec + (s,)
else:
(value,) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value,)
else:
(value,) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value,)
return rec
def get_record(edict, idtoname, rechdr, fobj):
"""Deserialize a trace record from a file into a tuple
(name, timestamp, pid, arg1, ..., arg6)."""
if rechdr is None:
return None
if rechdr[0] != dropped_event_id:
event_id = rechdr[0]
name = idtoname[event_id]
rec = (name, rechdr[1], rechdr[3])
event = edict[name]
for type, name in event.args:
if is_string(type):
l = fobj.read(4)
(len, ) = struct.unpack('=L', l)
s = fobj.read(len)
rec = rec + (s, )
else:
(value, ) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value, )
else:
rec = ("dropped", rechdr[1], rechdr[3])
(value, ) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value, )
return rec
def get_record(edict, idtoname, rechdr, fobj):
"""Deserialize a trace record from a file into a tuple
(name, timestamp, pid, arg1, ..., arg6)."""
if rechdr is None:
return None
if rechdr[0] != dropped_event_id:
event_id = rechdr[0]
name = idtoname[event_id]
rec = (name, rechdr[1], rechdr[3])
event = edict[name]
for type, name in event.args:
if is_string(type):
l = fobj.read(4)
(len,) = struct.unpack('=L', l)
s = fobj.read(len)
rec = rec + (s,)
else:
(value,) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value,)
else:
rec = ("dropped", rechdr[1], rechdr[3])
(value,) = struct.unpack('=Q', fobj.read(8))
rec = rec + (value,)
return rec
def generate(events, backend, group):
id_map = global_var_name("event_name_to_id_map")
next_id = global_var_name("event_next_id")
map_func = global_var_name("simple_trace_map_event")
out('/* This file is autogenerated by tracetool, do not edit. */',
'',
'global %(id_map)s',
'global %(next_id)s',
'function %(map_func)s(name)',
'',
'{',
' if (!([name] in %(id_map)s)) {',
' %(id_map)s[name] = %(next_id)s',
' name_len = strlen(name)',
' printf("%%8b%%8b%%4b%%.*s", 0, ',
' %(next_id)s, name_len, name_len, name)',
' %(next_id)s = %(next_id)s + 1',
' }',
' return %(id_map)s[name]',
'}',
'probe begin',
'{',
' printf("%%8b%%8b%%8b", 0xffffffffffffffff, 0xf2b177cb0aa429b4, 4)',
'}',
'',
id_map=id_map,
next_id=next_id,
map_func=map_func)
for event_id, e in enumerate(events):
if 'disable' in e.properties:
continue
out('probe %(probeprefix)s.simpletrace.%(name)s = %(probeprefix)s.%(name)s ?',
'{',
' id = %(map_func)s("%(name)s")',
probeprefix=probeprefix(),
map_func=map_func,
name=e.name)
# Calculate record size
sizes = ['24'] # sizeof(TraceRecord)
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
out(' try {',
' arg%(name)s_str = %(name)s ? user_string_n(%(name)s, 512) : "<null>"',
' } catch {}',
' arg%(name)s_len = strlen(arg%(name)s_str)',
name=name)
sizes.append('4 + arg%s_len' % name)
else:
sizes.append('8')
sizestr = ' + '.join(sizes)
# Generate format string and value pairs for record header and arguments
fields = [('8b', 'id'), ('8b', 'gettimeofday_ns()'), ('4b', sizestr),
('4b', 'pid()')]
for type_, name in e.args:
name = stap_escape(name)
if is_string(type_):
fields.extend([('4b', 'arg%s_len' % name),
('.*s', 'arg%s_len, arg%s_str' % (name, name))])
else:
fields.append(('8b', name))
# Emit the entire record in a single SystemTap printf()
fmt_str = '%'.join(fmt for fmt, _ in fields)
arg_str = ', '.join(arg for _, arg in fields)
out(' printf("%%8b%%%(fmt_str)s", 1, %(arg_str)s)',
fmt_str=fmt_str,
arg_str=arg_str)
out('}')
out()
