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#-----------------------------------------------------------------
# pycparser: func_defs.py
#
# Using pycparser for printing out all the calls of some function
# in a C file.
#
# Copyright (C) 2008-2015, Eli Bendersky
# License: BSD
#-----------------------------------------------------------------
from __future__ import print_function
import sys
from pycparser import c_parser, c_ast, parse_file
# A visitor with some state information (the funcname it's
# looking for)
#
class FuncCallVisitor(c_ast.NodeVisitor):
def __init__(self, funcname):
self.funcname = funcname
def visit_FuncCall(self, node):
if node.name.name == self.funcname:
print('%s called at %s' % (self.funcname, node.name.coord))
def show_func_calls(filename, funcname):
ast = parse_file(filename, use_cpp=True)
v = FuncCallVisitor(funcname)
v.visit(ast)
if __name__ == "__main__":
if len(sys.argv) > 2:
filename = sys.argv[1]
func = sys.argv[2]
else:
filename = 'examples/c_files/hash.c'
func = 'malloc'
show_func_calls(filename, func)