qemu/scripts/tracetool/format/d.py
Stefan Hajnoczi 0b7e89b103 trace: add DTrace reserved words for .d files
DTrace on Mac OS X fails due to trace events using 'self' as an argument
name:

  GEN   trace/generated-tracers-dtrace.h
dtrace: failed to compile script trace/generated-tracers-dtrace.dtrace: line 1330: syntax error, unexpected DT_KEY_SELF, expecting ) near "self"
make: *** [trace/generated-tracers-dtrace.h] Error 1

Filter argument names according to the list of DTrace .d file reserved
keywords.

Note that DTrace on Mac and Linux still do not work after this patch.
There are additional build issues remaining.

Reported-by: Henk Poley <henkpoley@gmail.com>
Tested-by: Henk Poley <henkpoley@gmail.com>
Cc: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-03-02 15:39:43 -06:00

55 lines
1.6 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
trace/generated-tracers.dtrace (DTrace only).
"""
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
__copyright__ = "Copyright 2012-2014, 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
# Reserved keywords from
# https://wikis.oracle.com/display/DTrace/Types,+Operators+and+Expressions
RESERVED_WORDS = (
'auto', 'goto', 'sizeof', 'break', 'if', 'static', 'case', 'import',
'string', 'char', 'inline', 'stringof', 'const', 'int', 'struct',
'continue', 'long', 'switch', 'counter', 'offsetof', 'this',
'default', 'probe', 'translator', 'do', 'provider', 'typedef',
'double', 'register', 'union', 'else', 'restrict', 'unsigned',
'enum', 'return', 'void', 'extern', 'self', 'volatile', 'float',
'short', 'while', 'for', 'signed', 'xlate',
)
def generate(events, backend):
events = [e for e in events
if "disable" not in e.properties]
out('/* This file is autogenerated by tracetool, do not edit. */'
'',
'provider qemu {')
for e in events:
args = []
for type_, name in e.args:
if name in RESERVED_WORDS:
name += '_'
args.append(type_ + ' ' + name)
# Define prototype for probe arguments
out('',
'probe %(name)s(%(args)s);',
name=e.name,
args=','.join(args))
out('',
'};')