#--- # pycparser: using_gcc_E_libc.py # # Similar to the using_cpp_libc.py example, but uses 'gcc -E' instead # of 'cpp'. The same can be achieved with Clang instead of gcc. If you have # Clang installed, simply replace 'gcc' with 'clang' here. # # Eli Bendersky [https...
ast = parse_file('example.c') ``` 这将返回一个抽象语法树对象,可以使用它来遍历和分析C语言代码。 在遍历抽象语法树时,我们可以使用NodeVisitor类来访问AST节点。我们可以继承NodeVisitor类并重写它的方法来实现我们自己的访问器。例如,以下代码将遍历抽象语法树并输出每个函数名: ```python from pycparser impor...
首先,我们需要获取待分析代码的AST数据,这是代码分析的基础。 frompycparserimportparse_file# 读取待分析的C文件ast=parse_file('example.c') 1. 2. 3. 4. 2. 寻找目标变量 接下来,我们需要遍历AST,寻找目标变量的定义节点。 # 遍历AST,找到目标变量的定义节点classVariableVisitor(c_ast.NodeVisitor):def__i...
Note also that you can usegcc -Eorclang -Einstead ofcpp. See theusing_gcc_E_libc.pyexample for more details. Windows users can download and install a binary build of Clang for Windowsfrom this website. 3.2 What about the standard C library headers?
Alternatively, since pycparser is listed in the Python Package Index (PyPI), you can install it using your favorite Python packaging/distribution tool, for example with: > pip install pycparser 2.3 Known problems Some users who've installed a new version of pycparser over an existing version ra...
Alternatively, since pycparser is listed in the Python Package Index (PyPI), you can install it using your favorite Python packaging/distribution tool, for example with: > pip install pycparser 2.3 Known problems Some users who've installed a new version of pycparser over an existing version ra...
Alternatively, since pycparser is listed in the Python Package Index (PyPI), you can install it using your favorite Python packaging/distribution tool, for example with: > pip install pycparser 2.3 Known problems Some users who've installed a new version of pycparser over an existing version ra...
See the using_gcc_E_libc.py example for more details. Windows users can download and install a binary build of Clang for Windows from this website. 3.2 What about the standard C library headers? C code almost always includes various header files from the standard C library, like stdio.h....
Also see thetests/test_interpreter.{c,py}'Hello world' example. Also try out./demos/interactive_interpreter.py --debug. Current state Many simple C programs should be parsed and interpret correctly now. I'm quite sure that function pointer typedefs are handled incorrectly. E.g.typedef void ...