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
|
# $Id$
#
# importsym.py: Import C symbol decls (structs, enums, etc) and write them
# to another file
#
# Copyright (C)2013 Teluu Inc. (http://www.teluu.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; either version 2 of the License, or
# (at your option) any later version.
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
import pycparser
from pycparser import c_generator
import sys
import os
def which(program):
import os
def is_exe(fpath):
return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
if sys.platform == 'win32' and not program.endswith(".exe"):
program += ".exe"
fpath, fname = os.path.split(program)
if fpath:
if is_exe(program):
return program
else:
for path in os.environ["PATH"].split(os.pathsep):
path = path.strip('"')
exe_file = os.path.join(path, program)
if is_exe(exe_file):
return exe_file
return None
#
PJ_ROOT_PATH = "../../../"
# CPP is needed by pycparser.
CPP_PATH = which("cpp")
if not CPP_PATH:
print 'Error: need to have cpp in PATH'
sys.exit(1)
# Hardcoded!
if sys.platform == 'win32':
PYCPARSER_DIR="C:/devs/tools/pycparser"
elif sys.platform == "linux2":
PYCPARSER_DIR="/home/bennylp/Desktop/opt/src/pycparser-master"
else:
PYCPARSER_DIR="/Library/Python/2.7/site-packages/pycparser"
if not os.path.exists(PYCPARSER_DIR + '/utils/fake_libc_include'):
print "Error: couldn't find pycparser utils in '%s'" % PYPARSER_DIR
sys.exit(1)
# Heading, to be placed before the source files
C_HEADING_SECTION = """
#define PJ_AUTOCONF 1
#define jmp_buf int
#define __attribute__(x)
"""
# CPP (C preprocessor) settings
CPP_CFLAGS = [
'-I' + PYCPARSER_DIR + '/utils/fake_libc_include',
"-I" + PJ_ROOT_PATH + "pjlib/include",
"-I" + PJ_ROOT_PATH + "pjlib-util/include",
"-I" + PJ_ROOT_PATH + "pjnath/include",
"-I" + PJ_ROOT_PATH + "pjmedia/include",
"-I" + PJ_ROOT_PATH + "pjsip/include"
]
class SymbolVisitor(pycparser.c_ast.NodeVisitor):
def __init__(self, names):
self.nodeDict = {}
for name in names:
self.nodeDict[name] = None
def _add(self, node):
if self.nodeDict.has_key(node.name):
self.nodeDict[node.name] = node
def visit_Struct(self, node):
self._add(node)
def visit_Enum(self, node):
self._add(node)
def visit_Typename(self, node):
self._add(node)
def visit_Typedef(self, node):
self._add(node)
TEMP_FILE="tmpsrc.h"
class SymbolImporter:
"""
Import C selected declarations from C source file and move it
to another file.
Parameters:
- listfile Path of file containing list of C source file
and identifier names to be imported. The format
of the listfile is:
filename name1 name2 name3
for example:
pj/sock_qos.h pj_qos_type pj_qos_flag
pj/types.h pj_status_t PJ_SUCCESS
"""
def __init__(self):
pass
def process(self, listfile, outfile):
# Read listfile
f = open(listfile)
lines = f.readlines()
f.close()
# Process each line in list file, while generating the
# temporary C file to be processed by pycparser
f = open(TEMP_FILE, "w")
f.write(C_HEADING_SECTION)
names = []
fcnt = 0
for line in lines:
spec = line.split()
if len(spec) < 2:
continue
fcnt += 1
f.write("#include <%s>\n" % spec[0])
names.extend(spec[1:])
f.close()
print 'Parsing %d symbols from %d files..' % (len(names), fcnt)
# Parse the temporary C file
ast = pycparser.parse_file(TEMP_FILE, use_cpp=True, cpp_path=CPP_PATH, cpp_args=CPP_CFLAGS)
os.remove(TEMP_FILE)
# Filter the declarations that we wanted
print 'Filtering..'
visitor = SymbolVisitor(names)
visitor.visit(ast)
# Print symbol declarations to outfile
print 'Writing declarations..'
f = open(outfile, 'w')
f.write("// This file is autogenerated by importsym script, do not modify!\n\n")
gen = pycparser.c_generator.CGenerator()
for name in names:
node = visitor.nodeDict[name]
if not node:
print " ** Warning: declaration for '%s' is not found **" % k
else:
print " writing '%s'.." % name
output = gen.visit(node) + ";\n\n"
f.write(output)
f.close()
print "Done."
if __name__ == "__main__":
print "Importing symbols: 'symbols.lst' --> 'symbols.i'"
si = SymbolImporter()
si.process("symbols.lst", "symbols.i")
try:
os.remove("lextab.py")
except OSError:
pass
try:
os.remove("yacctab.py")
except OSError:
pass
|
