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Filename : func_calls.py

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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)

Name	Size	Last Modified	Owner	Permissions
c_files	Dir	July 28 2023 2:56:41	root	0755
c-to-c.py	1.419 KB	November 13 2019 2:57:05	root	0644
cdecl.py	3.048 KB	November 13 2019 2:57:05	root	0644
explore_ast.py	5.27 KB	November 13 2019 2:57:05	root	0644
func_calls.py	1.084 KB	November 13 2019 2:57:05	root	0644
func_defs.py	1.081 KB	November 13 2019 2:57:05	root	0644
rewrite_ast.py	0.585 KB	June 10 2015 3:00:55	root	0644
using_cpp_libc.py	0.727 KB	November 13 2019 2:57:05	root	0644
using_gcc_E_libc.py	0.778 KB	November 13 2019 2:57:05	root	0644

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