| # -*- coding: utf-8 -*- | |
| """ | |
| LTTng User Space Tracing backend. | |
| """ | |
| __author__ = "Lluís Vilanova <vilanova@ac.upc.edu>" | |
| __copyright__ = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>" | |
| __license__ = "GPL version 2 or (at your option) any later version" | |
| __maintainer__ = "Stefan Hajnoczi" | |
| __email__ = "stefanha@redhat.com" | |
| from tracetool import out | |
| PUBLIC = True | |
| def generate_h_begin(events, group): | |
| header = 'trace-ust-' + group + '.h' | |
| out('#include <lttng/tracepoint.h>', | |
| '#include "%s"' % header, | |
| '', | |
| '/* tracepoint_enabled() was introduced in LTTng UST 2.7 */', | |
| '#ifndef tracepoint_enabled', | |
| '#define tracepoint_enabled(a, b) true', | |
| '#endif', | |
| '') | |
| def generate_h(event, group): | |
| argnames = ", ".join(event.args.names()) | |
| if len(event.args) > 0: | |
| argnames = ", " + argnames | |
| out(' tracepoint(qemu, %(name)s%(tp_args)s);', | |
| name=event.name, | |
| tp_args=argnames) | |
| def generate_h_backend_dstate(event, group): | |
| out(' tracepoint_enabled(qemu, %(name)s) || \\', | |
| name=event.name) |