drgn/libdrgn/python/module.c

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// Copyright 2018-2019 - Omar Sandoval
// SPDX-License-Identifier: GPL-3.0+
#include "drgnpy.h"
#ifdef WITH_KDUMPFILE
#include <libkdumpfile/kdumpfile.h>
#endif
PyObject *FaultError;
PyObject *MissingDebugInfoError;
static PyObject *filename_matches(PyObject *self, PyObject *args,
PyObject *kwds)
{
static char *keywords[] = {"haystack", "needle", NULL};
struct path_arg haystack_arg = {.allow_none = true};
struct path_arg needle_arg = {.allow_none = true};
struct path_iterator haystack = {
.components = (struct path_iterator_component [1]){},
.num_components = 0,
};
struct path_iterator needle = {
.components = (struct path_iterator_component [1]){},
.num_components = 0,
};
bool ret;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O&O&:filename_matches",
keywords, path_converter,
&haystack_arg, path_converter,
&needle_arg))
return NULL;
if (haystack_arg.path) {
haystack.components[0].path = haystack_arg.path;
haystack.components[0].len = haystack_arg.length;
haystack.num_components = 1;
}
if (needle_arg.path) {
needle.components[0].path = needle_arg.path;
needle.components[0].len = needle_arg.length;
needle.num_components = 1;
}
ret = path_ends_with(&haystack, &needle);
path_cleanup(&haystack_arg);
path_cleanup(&needle_arg);
if (ret)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
static PyObject *sizeof_(PyObject *self, PyObject *arg)
{
struct drgn_error *err;
uint64_t size;
if (PyObject_TypeCheck(arg, &DrgnType_type)) {
err = drgn_type_sizeof(((DrgnType *)arg)->type, &size);
} else if (PyObject_TypeCheck(arg, &DrgnObject_type)) {
err = drgn_object_sizeof(&((DrgnObject *)arg)->obj, &size);
} else {
return PyErr_Format(PyExc_TypeError,
"expected Type or Object, not %s",
Py_TYPE(arg)->tp_name);
}
if (err)
return set_drgn_error(err);
return PyLong_FromUnsignedLongLong(size);
}
static PyMethodDef drgn_methods[] = {
{"filename_matches", (PyCFunction)filename_matches,
METH_VARARGS | METH_KEYWORDS, drgn_filename_matches_DOC},
{"NULL", (PyCFunction)DrgnObject_NULL, METH_VARARGS | METH_KEYWORDS,
drgn_NULL_DOC},
{"sizeof", (PyCFunction)sizeof_, METH_O, drgn_sizeof_DOC},
{"cast", (PyCFunction)cast, METH_VARARGS | METH_KEYWORDS,
drgn_cast_DOC},
{"reinterpret", (PyCFunction)reinterpret, METH_VARARGS | METH_KEYWORDS,
drgn_reinterpret_DOC},
{"container_of", (PyCFunction)DrgnObject_container_of,
METH_VARARGS | METH_KEYWORDS, drgn_container_of_DOC},
{"program_from_core_dump", (PyCFunction)program_from_core_dump,
METH_VARARGS | METH_KEYWORDS, drgn_program_from_core_dump_DOC},
{"program_from_kernel", (PyCFunction)program_from_kernel,
METH_NOARGS, drgn_program_from_kernel_DOC},
{"program_from_pid", (PyCFunction)program_from_pid,
METH_VARARGS | METH_KEYWORDS, drgn_program_from_pid_DOC},
{"void_type", (PyCFunction)void_type, METH_VARARGS | METH_KEYWORDS,
drgn_void_type_DOC},
{"int_type", (PyCFunction)int_type, METH_VARARGS | METH_KEYWORDS,
drgn_int_type_DOC},
{"bool_type", (PyCFunction)bool_type, METH_VARARGS | METH_KEYWORDS,
drgn_bool_type_DOC},
{"float_type", (PyCFunction)float_type, METH_VARARGS | METH_KEYWORDS,
drgn_float_type_DOC},
{"complex_type", (PyCFunction)complex_type,
METH_VARARGS | METH_KEYWORDS, drgn_complex_type_DOC},
{"struct_type", (PyCFunction)struct_type, METH_VARARGS | METH_KEYWORDS,
drgn_struct_type_DOC},
{"union_type", (PyCFunction)union_type, METH_VARARGS | METH_KEYWORDS,
drgn_union_type_DOC},
{"enum_type", (PyCFunction)enum_type, METH_VARARGS | METH_KEYWORDS,
drgn_enum_type_DOC},
{"typedef_type", (PyCFunction)typedef_type,
METH_VARARGS | METH_KEYWORDS,
drgn_typedef_type_DOC},
{"pointer_type", (PyCFunction)pointer_type,
METH_VARARGS | METH_KEYWORDS, drgn_pointer_type_DOC},
{"array_type", (PyCFunction)array_type, METH_VARARGS | METH_KEYWORDS,
drgn_array_type_DOC},
{"function_type", (PyCFunction)function_type,
METH_VARARGS | METH_KEYWORDS, drgn_function_type_DOC},
{"_linux_helper_radix_tree_lookup",
(PyCFunction)drgnpy_linux_helper_radix_tree_lookup,
METH_VARARGS | METH_KEYWORDS},
{"_linux_helper_idr_find", (PyCFunction)drgnpy_linux_helper_idr_find,
METH_VARARGS | METH_KEYWORDS},
{"_linux_helper_find_pid", (PyCFunction)drgnpy_linux_helper_find_pid,
METH_VARARGS | METH_KEYWORDS},
{"_linux_helper_pid_task", (PyCFunction)drgnpy_linux_helper_pid_task,
METH_VARARGS | METH_KEYWORDS},
{"_linux_helper_find_task", (PyCFunction)drgnpy_linux_helper_find_task,
METH_VARARGS | METH_KEYWORDS},
{"_linux_helper_task_state_to_char",
(PyCFunction)drgnpy_linux_helper_task_state_to_char,
METH_VARARGS | METH_KEYWORDS},
{},
};
static struct PyModuleDef drgnmodule = {
PyModuleDef_HEAD_INIT,
"_drgn",
"libdrgn bindings\n"
"\n"
"Don't use this module directly. Instead, use the drgn package.",
-1,
drgn_methods,
};
DRGNPY_PUBLIC PyMODINIT_FUNC PyInit__drgn(void)
{
PyObject *m;
PyObject *version;
PyObject *host_platform_obj;
PyObject *with_libkdumpfile;
m = PyModule_Create(&drgnmodule);
if (!m)
return NULL;
if (add_module_constants(m) == -1)
goto err;
version = PyUnicode_FromFormat("%u.%u.%u", DRGN_VERSION_MAJOR,
DRGN_VERSION_MINOR, DRGN_VERSION_PATCH);
if (!version)
goto err;
PyModule_AddObject(m, "__version__", version);
FaultError = PyErr_NewExceptionWithDoc("_drgn.FaultError",
drgn_FaultError_DOC, NULL, NULL);
if (!FaultError)
goto err;
PyModule_AddObject(m, "FaultError", FaultError);
MissingDebugInfoError = PyErr_NewExceptionWithDoc("_drgn.MissingDebugInfoError",
drgn_MissingDebugInfoError_DOC,
NULL, NULL);
if (!MissingDebugInfoError)
goto err;
PyModule_AddObject(m, "MissingDebugInfoError", MissingDebugInfoError);
if (PyStructSequence_InitType2(&Register_type, &Register_desc) == -1)
goto err;
PyModule_AddObject(m, "Register", (PyObject *)&Register_type);
if (PyType_Ready(&DrgnObject_type) < 0)
goto err;
Py_INCREF(&DrgnObject_type);
PyModule_AddObject(m, "Object", (PyObject *)&DrgnObject_type);
if (PyType_Ready(&ObjectIterator_type) < 0)
goto err;
if (PyType_Ready(&Platform_type) < 0)
goto err;
Py_INCREF(&Platform_type);
PyModule_AddObject(m, "Platform", (PyObject *)&Platform_type);
if (PyType_Ready(&Program_type) < 0)
goto err;
Py_INCREF(&Program_type);
PyModule_AddObject(m, "Program", (PyObject *)&Program_type);
if (PyType_Ready(&StackFrame_type) < 0)
goto err;
Py_INCREF(&StackFrame_type);
PyModule_AddObject(m, "StackFrame", (PyObject *)&StackFrame_type);
if (PyType_Ready(&StackTrace_type) < 0)
goto err;
Py_INCREF(&StackTrace_type);
PyModule_AddObject(m, "StackTrace", (PyObject *)&StackTrace_type);
if (PyType_Ready(&Symbol_type) < 0)
goto err;
Py_INCREF(&Symbol_type);
PyModule_AddObject(m, "Symbol", (PyObject *)&Symbol_type);
if (PyType_Ready(&DrgnType_type) < 0)
goto err;
Py_INCREF(&DrgnType_type);
PyModule_AddObject(m, "Type", (PyObject *)&DrgnType_type);
host_platform_obj = Platform_wrap(&drgn_host_platform);
if (!host_platform_obj)
goto err;
PyModule_AddObject(m, "host_platform", host_platform_obj);
#ifdef WITH_LIBKDUMPFILE
with_libkdumpfile = Py_True;
#else
with_libkdumpfile = Py_False;
#endif
Py_INCREF(with_libkdumpfile);
PyModule_AddObject(m, "_with_libkdumpfile", with_libkdumpfile);
return m;
err:
Py_DECREF(m);
return NULL;
}