qemu-patch-raspberry4/scripts/tracetool/backend/dtrace.py
Daniel P. Berrange 0ab8ed18a6 trace: switch to modular code generation for sub-directories
Introduce rules in the top level Makefile that are able to generate
trace.[ch] files in every subdirectory which has a trace-events file.

The top level directory is handled specially, so instead of creating
trace.h, it creates trace-root.h. This allows sub-directories to
include the top level trace-root.h file, without ambiguity wrt to
the trace.g file in the current sub-dir.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170125161417.31949-7-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-01-31 17:11:18 +00:00

52 lines
1 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
DTrace/SystemTAP backend.
"""
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
__copyright__ = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
__email__ = "stefanha@linux.vnet.ibm.com"
from tracetool import out
PUBLIC = True
PROBEPREFIX = None
def probeprefix():
if PROBEPREFIX is None:
raise ValueError("you must set PROBEPREFIX")
return PROBEPREFIX
BINARY = None
def binary():
if BINARY is None:
raise ValueError("you must set BINARY")
return BINARY
def generate_h_begin(events, group):
if group == "root":
header = "trace-dtrace-root.h"
else:
header = "trace-dtrace.h"
out('#include "%s"' % header,
'')
def generate_h(event, group):
out(' QEMU_%(uppername)s(%(argnames)s);',
uppername=event.name.upper(),
argnames=", ".join(event.args.names()))