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// Copyright (c) Meta Platforms, Inc. and affiliates.
// SPDX-License-Identifier: LGPL-2.1-or-later
#include "drgnpy.h"
PyObject *Platform_wrap(const struct drgn_platform *platform)
{
struct drgn_error *err;
struct drgn_platform *tmp;
err = drgn_platform_create(drgn_platform_arch(platform),
drgn_platform_flags(platform),
&tmp);
if (err)
return set_drgn_error(err);
Platform *ret = call_tp_alloc(Platform);
if (!ret)
return NULL;
ret->platform = tmp;
return (PyObject *)ret;
}
static Platform *Platform_new(PyTypeObject *subtype, PyObject *args,
PyObject *kwds)
{
static char *keywords[] = {"arch", "flags", NULL};
struct enum_arg arch = { .type = Architecture_class, };
struct enum_arg flags = {
.type = PlatformFlags_class,
.value = DRGN_PLATFORM_DEFAULT_FLAGS,
.allow_none = true,
};
struct drgn_error *err;
struct drgn_platform *platform;
Platform *ret;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O&|O&:Platform", keywords,
enum_converter, &arch, enum_converter,
&flags))
return NULL;
err = drgn_platform_create(arch.value, flags.value, &platform);
if (err)
return set_drgn_error(err);
ret = (Platform *)subtype->tp_alloc(subtype, 0);
if (!ret) {
drgn_platform_destroy(platform);
return NULL;
}
ret->platform = platform;
return ret;
}
static void Platform_dealloc(Platform *self)
{
drgn_platform_destroy(self->platform);
Py_TYPE(self)->tp_free((PyObject *)self);
}
static PyObject *Platform_richcompare(Platform *self, PyObject *other, int op)
{
if (!PyObject_TypeCheck(other, &Platform_type) ||
(op != Py_EQ && op != Py_NE))
Py_RETURN_NOTIMPLEMENTED;
bool ret = drgn_platform_eq(self->platform,
((Platform *)other)->platform);
if (op == Py_NE)
ret = !ret;
Py_RETURN_BOOL(ret);
}
static PyObject *Platform_get_arch(Platform *self, void *arg)
{
return PyObject_CallFunction(Architecture_class, "k",
(unsigned long)drgn_platform_arch(self->platform));
}
static PyObject *Platform_get_flags(Platform *self, void *arg)
{
return PyObject_CallFunction(PlatformFlags_class, "k",
(unsigned long)drgn_platform_flags(self->platform));
}
static PyObject *Platform_get_registers(Platform *self, void *arg)
{
size_t num_registers = drgn_platform_num_registers(self->platform);
_cleanup_pydecref_ PyObject *tuple = PyTuple_New(num_registers);
if (!tuple)
return NULL;
for (size_t i = 0; i < num_registers; i++) {
const struct drgn_register *reg =
drgn_platform_register(self->platform, i);
Register *item = call_tp_alloc(Register);
if (!item)
return NULL;
item->reg = reg;
PyTuple_SET_ITEM(tuple, i, (PyObject *)item);
}
return_ptr(tuple);
}
static PyObject *Platform_repr(Platform *self)
{
_cleanup_pydecref_ PyObject *arch_obj = Platform_get_arch(self, NULL);
if (!arch_obj)
return NULL;
_cleanup_pydecref_ PyObject *flags_obj = Platform_get_flags(self, NULL);
if (!flags_obj)
return NULL;
return PyUnicode_FromFormat("Platform(%R, %R)", arch_obj, flags_obj);
}
static PyGetSetDef Platform_getset[] = {
{"arch", (getter)Platform_get_arch, NULL, drgn_Platform_arch_DOC},
{"flags", (getter)Platform_get_flags, NULL, drgn_Platform_flags_DOC},
{"registers", (getter)Platform_get_registers, NULL,
drgn_Platform_registers_DOC},
{},
};
PyTypeObject Platform_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "_drgn.Platform",
.tp_basicsize = sizeof(Platform),
.tp_dealloc = (destructor)Platform_dealloc,
.tp_repr = (reprfunc)Platform_repr,
// Doesn't reference any objects, no GC needed.
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_doc = drgn_Platform_DOC,
.tp_richcompare = (richcmpfunc)Platform_richcompare,
.tp_getset = Platform_getset,
.tp_new = (newfunc)Platform_new,
};
static PyObject *Register_richcompare(Register *self, PyObject *other, int op)
{
if (!PyObject_TypeCheck(other, &Register_type) ||
(op != Py_EQ && op != Py_NE))
Py_RETURN_NOTIMPLEMENTED;
bool ret = self->reg == ((Register *)other)->reg;
if (op == Py_NE)
ret = !ret;
Py_RETURN_BOOL(ret);
}
static PyObject *Register_get_names(Register *self, void *arg)
{
size_t num_names;
const char * const *names = drgn_register_names(self->reg, &num_names);
_cleanup_pydecref_ PyObject *ret = PyTuple_New(num_names);
for (size_t i = 0; i < num_names; i++) {
PyObject *item = PyUnicode_FromString(names[i]);
if (!item)
return NULL;
PyTuple_SET_ITEM(ret, i, item);
}
return_ptr(ret);
}
static PyObject *Register_repr(Register *self)
{
_cleanup_pydecref_ PyObject *names_obj = Register_get_names(self, NULL);
if (!names_obj)
return NULL;
return PyUnicode_FromFormat("Register(%R)", names_obj);
}
static PyGetSetDef Register_getset[] = {
{"names", (getter)Register_get_names, NULL, drgn_Register_names_DOC},
{},
};
PyTypeObject Register_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "_drgn.Register",
.tp_basicsize = sizeof(Register),
.tp_repr = (reprfunc)Register_repr,
// Doesn't reference any objects, no GC needed.
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_doc = drgn_Register_DOC,
.tp_richcompare = (richcmpfunc)Register_richcompare,
.tp_getset = Register_getset,
};
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