/usr/bin/lttng-gen-tp is in liblttng-ust-dev 2.0.2-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 | #!/usr/bin/python
#
# Copyright (c) 2012 Yannick Brosseau <yannick.brosseau@gmail.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; only version 2
# of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import sys
import getopt
import re
import os
import subprocess
class Usage(Exception):
def __init__(self, msg):
self.msg = msg
class HeaderFile:
HEADER_TPL="""
#undef TRACEPOINT_PROVIDER
#define TRACEPOINT_PROVIDER {providerName}
#undef TRACEPOINT_INCLUDE_FILE
#define TRACEPOINT_INCLUDE_FILE ./{headerFilename}
#ifdef __cplusplus
#extern "C"{{
#endif /*__cplusplus */
#if !defined({includeGuard}) || defined(TRACEPOINT_HEADER_MULTI_READ)
#define {includeGuard}
#include <lttng/tracepoint.h>
"""
FOOTER_TPL="""
#endif /* {includeGuard} */
#include <lttng/tracepoint-event.h>
#ifdef __cplusplus
}}
#endif /*__cplusplus */
"""
def __init__(self, filename, template):
self.outputFilename = filename
self.template = template
def write(self):
outputFile = open(self.outputFilename,"w")
includeGuard = "_"+self.outputFilename.upper().replace(".","_")
outputFile.write(HeaderFile.HEADER_TPL.format(providerName=self.template.domain,
includeGuard = includeGuard,
headerFilename = self.outputFilename))
outputFile.write(self.template.text)
outputFile.write(HeaderFile.FOOTER_TPL.format(includeGuard = includeGuard))
outputFile.close()
class CFile:
FILE_TPL="""
#define TRACEPOINT_CREATE_PROBES
/*
* The header containing our TRACEPOINT_EVENTs.
*/
#define TRACEPOINT_DEFINE
#include "{headerFilename}"
"""
def __init__(self, filename, template):
self.outputFilename = filename
self.template = template
def write(self):
outputFile = open(self.outputFilename,"w")
headerFilename = self.outputFilename.replace(".c",".h")
outputFile.write(CFile.FILE_TPL.format(
headerFilename = headerFilename))
outputFile.close()
class ObjFile:
def __init__(self, filename, template):
self.outputFilename = filename
self.template = template
def _detectCC(self):
cc = ""
if os.environ.has_key('CC'):
cc = os.environ['CC']
try:
subprocess.call(cc,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
except OSError, msg:
print "Invalid CC environment variable"
cc = ""
else:
# Try c first, if that fails try gcc
try:
useCC = True
subprocess.call("cc",
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
except OSError, msg:
useCC = False
if useCC:
cc = "cc"
else:
try:
useGCC = True
subprocess.call("gcc",
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
except OSError, msg:
useGCC = False
if useGCC:
cc = "gcc"
return cc
def write(self):
cFilename = self.outputFilename.replace(".o",".c")
cc = self._detectCC()
if cc == "":
raise RuntimeError("No C Compiler detected")
if os.environ.has_key('CFLAGS'):
cflags = os.environ['CFLAGS']
else:
cflags = ""
command = cc + " -c " + cflags + " -I. -llttng-ust" + " -o " + self.outputFilename + " " + cFilename
subprocess.call(command.split())
class TemplateFile:
def __init__(self, filename):
self.domain = ""
self.inputFilename = filename
self.parseTemplate()
def parseTemplate(self):
f = open(self.inputFilename,"r")
self.text = f.read()
#Remove # comments (from input and output file
removeComments = re.compile("#.*$",flags=re.MULTILINE)
self.text = removeComments.sub("",self.text)
#Remove // comments
removeLineComment = re.compile("\/\/.*$",flags=re.MULTILINE)
nolinecomment = removeLineComment.sub("",self.text)
#Remove all spaces and lines
cleantext = re.sub("\s*","",nolinecomment)
#Remove multine C style comments
nocomment = re.sub("/\*.*?\*/","",cleantext)
entries = re.split("TRACEPOINT_.*?",nocomment)
for entry in entries:
if entry != '':
decomp = re.findall("(\w*?)\((\w*?),(\w*?),", entry)
typea = decomp[0][0]
domain = decomp[0][1]
name = decomp[0][2]
if self.domain == "":
self.domain = domain
else:
if self.domain != domain:
print "Warning: different domain provided (%s,%s)" % (self.domain, domain)
usage="""
lttng-gen-tp - Generate the LTTng-UST header and source based on a simple template
usage: lttng-gen-tp TEMPLATE_FILE [-o OUTPUT_FILE][-o OUTPUT_FILE]
If no OUTPUT_FILE is given, the .h and .c file will be generated.
(The basename of the template file with be used for the generated file.
for example sample.tp will generate sample.h, sample.c and sample.o)
When using the -o option, the OUTPUT_FILE must end with either .h, .c or .o
The -o option can be repeated multiple times.
The template file must contains TRACEPOINT_EVENT and TRACEPOINT_LOGLEVEL
as per defined in the lttng/tracepoint.h file.
See the lttng-ust(3) man page for more details on the format.
"""
def main(argv=None):
if argv is None:
argv = sys.argv
try:
try:
opts, args = getopt.gnu_getopt(argv[1:], "ho:a", ["help"])
except getopt.error, msg:
raise Usage(msg)
if len(args) == 0:
raise Usage("No template file given")
except Usage, err:
print >>sys.stderr, err.msg
print >>sys.stderr, "for help use --help"
return 2
outputNames = []
for o, a in opts:
if o in ("-h", "--help"):
print usage
return(0)
if o in ("-o",""):
outputNames.append(a)
if o in ("-a",""):
all = True
doCFile = None
doHeader = None
doObj = None
headerFilename = None
cFilename = None
objFilename = None
if len(outputNames) > 0:
if len(args) > 1:
print "Cannot process more than one input if you specify an output"
return(3)
for outputName in outputNames:
if outputName[-2:] == ".h":
doHeader = True
headerFilename = outputName
elif outputName[-2:] == ".c":
doCFile = True
cFilename = outputName
elif outputName[-2:] == ".o":
doObj = True
objFilename = outputName
else:
print "output file type unsupported"
return(4)
else:
doHeader = True
doCFile = True
doObj = True
# process arguments
for arg in args:
tpl = None
try:
tpl = TemplateFile(arg)
except IOError as args:
print "Cannot read input file " + args.filename + " " + args.strerror
return -1
try:
if doHeader:
if headerFilename:
curFilename = headerFilename
else:
curFilename = re.sub("\.tp$",".h",arg)
doth = HeaderFile(curFilename, tpl)
doth.write()
if doCFile:
if cFilename:
curFilename = cFilename
else:
curFilename = re.sub("\.tp$",".c",arg)
dotc = CFile(curFilename, tpl)
dotc.write()
if doObj:
if objFilename:
curFilename = objFilename
else:
curFilename = re.sub("\.tp$",".o",arg)
dotobj = ObjFile(curFilename, tpl)
dotobj.write()
except IOError as args:
print "Cannot write output file " + args.filename + " " + args.strerror
return -1
if __name__ == "__main__":
sys.exit(main())
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