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/opt/alt/python37/share/doc/alt-python37-pycparser/examples/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)

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c_files DIR	-	drwxr-xr-x	2021-10-11 07:55:49	Edit Download recursive recursive
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cdecl.py	3.05 KB	lrw-r--r--	2021-07-07 23:54:58	Edit Download recursive recursive
explore_ast.py	5.27 KB	lrw-r--r--	2021-07-07 23:54:58	Edit Download recursive recursive
func_calls.py	1.08 KB	lrw-r--r--	2021-07-07 23:54:58	Edit Download recursive recursive
func_defs.py	1.08 KB	lrw-r--r--	2021-07-07 23:54:58	Edit Download recursive recursive
rewrite_ast.py	599 B	lrw-r--r--	2021-07-07 23:54:58	Edit Download recursive recursive
using_cpp_libc.py	744 B	lrw-r--r--	2021-07-07 23:54:58	Edit Download recursive recursive
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