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2212 lines (1914 loc) · 62.8 KB
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/*
* C Extension module to test Python internal C APIs (Include/internal).
*/
#ifndef Py_BUILD_CORE_BUILTIN
# define Py_BUILD_CORE_MODULE 1
#endif
/* Always enable assertions */
#undef NDEBUG
#include "Python.h"
#include "pycore_backoff.h" // JUMP_BACKWARD_INITIAL_VALUE
#include "pycore_bitutils.h" // _Py_bswap32()
#include "pycore_bytesobject.h" // _PyBytes_Find()
#include "pycore_ceval.h" // _PyEval_AddPendingCall()
#include "pycore_code.h" // _PyCode_GetTLBCFast()
#include "pycore_compile.h" // _PyCompile_CodeGen()
#include "pycore_context.h" // _PyContext_NewHamtForTests()
#include "pycore_dict.h" // _PyManagedDictPointer_GetValues()
#include "pycore_fileutils.h" // _Py_normpath()
#include "pycore_flowgraph.h" // _PyCompile_OptimizeCfg()
#include "pycore_frame.h" // _PyInterpreterFrame
#include "pycore_gc.h" // PyGC_Head
#include "pycore_hashtable.h" // _Py_hashtable_new()
#include "pycore_initconfig.h" // _Py_GetConfigsAsDict()
#include "pycore_instruction_sequence.h" // _PyInstructionSequence_New()
#include "pycore_object.h" // _PyObject_IsFreed()
#include "pycore_optimizer.h" // JitOptSymbol, etc.
#include "pycore_pathconfig.h" // _PyPathConfig_ClearGlobal()
#include "pycore_pyerrors.h" // _PyErr_ChainExceptions1()
#include "pycore_pylifecycle.h" // _PyInterpreterConfig_AsDict()
#include "pycore_pystate.h" // _PyThreadState_GET()
#include "clinic/_testinternalcapi.c.h"
// Include test definitions from _testinternalcapi/
#include "_testinternalcapi/parts.h"
#define MODULE_NAME "_testinternalcapi"
static PyObject *
_get_current_module(void)
{
// We ensured it was imported in _run_script().
PyObject *name = PyUnicode_FromString(MODULE_NAME);
if (name == NULL) {
return NULL;
}
PyObject *mod = PyImport_GetModule(name);
Py_DECREF(name);
if (mod == NULL) {
return NULL;
}
assert(mod != Py_None);
return mod;
}
/* module state *************************************************************/
typedef struct {
PyObject *record_list;
} module_state;
static inline module_state *
get_module_state(PyObject *mod)
{
assert(mod != NULL);
module_state *state = PyModule_GetState(mod);
assert(state != NULL);
return state;
}
static int
traverse_module_state(module_state *state, visitproc visit, void *arg)
{
Py_VISIT(state->record_list);
return 0;
}
static int
clear_module_state(module_state *state)
{
Py_CLEAR(state->record_list);
return 0;
}
/* module functions *********************************************************/
/*[clinic input]
module _testinternalcapi
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=7bb583d8c9eb9a78]*/
static PyObject *
get_configs(PyObject *self, PyObject *Py_UNUSED(args))
{
return _Py_GetConfigsAsDict();
}
static PyObject*
get_recursion_depth(PyObject *self, PyObject *Py_UNUSED(args))
{
PyThreadState *tstate = _PyThreadState_GET();
return PyLong_FromLong(tstate->py_recursion_limit - tstate->py_recursion_remaining);
}
static PyObject*
get_c_recursion_remaining(PyObject *self, PyObject *Py_UNUSED(args))
{
PyThreadState *tstate = _PyThreadState_GET();
return PyLong_FromLong(tstate->c_recursion_remaining);
}
static PyObject*
test_bswap(PyObject *self, PyObject *Py_UNUSED(args))
{
uint16_t u16 = _Py_bswap16(UINT16_C(0x3412));
if (u16 != UINT16_C(0x1234)) {
PyErr_Format(PyExc_AssertionError,
"_Py_bswap16(0x3412) returns %u", u16);
return NULL;
}
uint32_t u32 = _Py_bswap32(UINT32_C(0x78563412));
if (u32 != UINT32_C(0x12345678)) {
PyErr_Format(PyExc_AssertionError,
"_Py_bswap32(0x78563412) returns %lu", u32);
return NULL;
}
uint64_t u64 = _Py_bswap64(UINT64_C(0xEFCDAB9078563412));
if (u64 != UINT64_C(0x1234567890ABCDEF)) {
PyErr_Format(PyExc_AssertionError,
"_Py_bswap64(0xEFCDAB9078563412) returns %llu", u64);
return NULL;
}
Py_RETURN_NONE;
}
static int
check_popcount(uint32_t x, int expected)
{
// Use volatile to prevent the compiler to optimize out the whole test
volatile uint32_t u = x;
int bits = _Py_popcount32(u);
if (bits != expected) {
PyErr_Format(PyExc_AssertionError,
"_Py_popcount32(%lu) returns %i, expected %i",
(unsigned long)x, bits, expected);
return -1;
}
return 0;
}
static PyObject*
test_popcount(PyObject *self, PyObject *Py_UNUSED(args))
{
#define CHECK(X, RESULT) \
do { \
if (check_popcount(X, RESULT) < 0) { \
return NULL; \
} \
} while (0)
CHECK(0, 0);
CHECK(1, 1);
CHECK(0x08080808, 4);
CHECK(0x10000001, 2);
CHECK(0x10101010, 4);
CHECK(0x10204080, 4);
CHECK(0xDEADCAFE, 22);
CHECK(0xFFFFFFFF, 32);
Py_RETURN_NONE;
#undef CHECK
}
static int
check_bit_length(unsigned long x, int expected)
{
// Use volatile to prevent the compiler to optimize out the whole test
volatile unsigned long u = x;
int len = _Py_bit_length(u);
if (len != expected) {
PyErr_Format(PyExc_AssertionError,
"_Py_bit_length(%lu) returns %i, expected %i",
x, len, expected);
return -1;
}
return 0;
}
static PyObject*
test_bit_length(PyObject *self, PyObject *Py_UNUSED(args))
{
#define CHECK(X, RESULT) \
do { \
if (check_bit_length(X, RESULT) < 0) { \
return NULL; \
} \
} while (0)
CHECK(0, 0);
CHECK(1, 1);
CHECK(0x1000, 13);
CHECK(0x1234, 13);
CHECK(0x54321, 19);
CHECK(0x7FFFFFFF, 31);
CHECK(0xFFFFFFFF, 32);
Py_RETURN_NONE;
#undef CHECK
}
#define TO_PTR(ch) ((void*)(uintptr_t)ch)
#define FROM_PTR(ptr) ((uintptr_t)ptr)
#define VALUE(key) (1 + ((int)(key) - 'a'))
static Py_uhash_t
hash_char(const void *key)
{
char ch = (char)FROM_PTR(key);
return ch;
}
static int
hashtable_cb(_Py_hashtable_t *table,
const void *key_ptr, const void *value_ptr,
void *user_data)
{
int *count = (int *)user_data;
char key = (char)FROM_PTR(key_ptr);
int value = (int)FROM_PTR(value_ptr);
assert(value == VALUE(key));
*count += 1;
return 0;
}
static PyObject*
test_hashtable(PyObject *self, PyObject *Py_UNUSED(args))
{
_Py_hashtable_t *table = _Py_hashtable_new(hash_char,
_Py_hashtable_compare_direct);
if (table == NULL) {
return PyErr_NoMemory();
}
// Using an newly allocated table must not crash
assert(table->nentries == 0);
assert(table->nbuckets > 0);
assert(_Py_hashtable_get(table, TO_PTR('x')) == NULL);
// Test _Py_hashtable_set()
char key;
for (key='a'; key <= 'z'; key++) {
int value = VALUE(key);
if (_Py_hashtable_set(table, TO_PTR(key), TO_PTR(value)) < 0) {
_Py_hashtable_destroy(table);
return PyErr_NoMemory();
}
}
assert(table->nentries == 26);
assert(table->nbuckets > table->nentries);
// Test _Py_hashtable_get_entry()
for (key='a'; key <= 'z'; key++) {
_Py_hashtable_entry_t *entry = _Py_hashtable_get_entry(table, TO_PTR(key));
assert(entry != NULL);
assert(entry->key == TO_PTR(key));
assert(entry->value == TO_PTR(VALUE(key)));
}
// Test _Py_hashtable_get()
for (key='a'; key <= 'z'; key++) {
void *value_ptr = _Py_hashtable_get(table, TO_PTR(key));
assert((int)FROM_PTR(value_ptr) == VALUE(key));
}
// Test _Py_hashtable_steal()
key = 'p';
void *value_ptr = _Py_hashtable_steal(table, TO_PTR(key));
assert((int)FROM_PTR(value_ptr) == VALUE(key));
assert(table->nentries == 25);
assert(_Py_hashtable_get_entry(table, TO_PTR(key)) == NULL);
// Test _Py_hashtable_foreach()
int count = 0;
int res = _Py_hashtable_foreach(table, hashtable_cb, &count);
assert(res == 0);
assert(count == 25);
// Test _Py_hashtable_clear()
_Py_hashtable_clear(table);
assert(table->nentries == 0);
assert(table->nbuckets > 0);
assert(_Py_hashtable_get(table, TO_PTR('x')) == NULL);
_Py_hashtable_destroy(table);
Py_RETURN_NONE;
}
static PyObject *
test_reset_path_config(PyObject *Py_UNUSED(self), PyObject *Py_UNUSED(arg))
{
_PyPathConfig_ClearGlobal();
Py_RETURN_NONE;
}
static int
check_edit_cost(const char *a, const char *b, Py_ssize_t expected)
{
int ret = -1;
PyObject *a_obj = NULL;
PyObject *b_obj = NULL;
a_obj = PyUnicode_FromString(a);
if (a_obj == NULL) {
goto exit;
}
b_obj = PyUnicode_FromString(b);
if (b_obj == NULL) {
goto exit;
}
Py_ssize_t result = _Py_UTF8_Edit_Cost(a_obj, b_obj, -1);
if (result != expected) {
PyErr_Format(PyExc_AssertionError,
"Edit cost from '%s' to '%s' returns %zd, expected %zd",
a, b, result, expected);
goto exit;
}
// Check that smaller max_edits thresholds are exceeded.
Py_ssize_t max_edits = result;
while (max_edits > 0) {
max_edits /= 2;
Py_ssize_t result2 = _Py_UTF8_Edit_Cost(a_obj, b_obj, max_edits);
if (result2 <= max_edits) {
PyErr_Format(PyExc_AssertionError,
"Edit cost from '%s' to '%s' (threshold %zd) "
"returns %zd, expected greater than %zd",
a, b, max_edits, result2, max_edits);
goto exit;
}
}
// Check that bigger max_edits thresholds don't change anything
Py_ssize_t result3 = _Py_UTF8_Edit_Cost(a_obj, b_obj, result * 2 + 1);
if (result3 != result) {
PyErr_Format(PyExc_AssertionError,
"Edit cost from '%s' to '%s' (threshold %zd) "
"returns %zd, expected %zd",
a, b, result * 2, result3, result);
goto exit;
}
ret = 0;
exit:
Py_XDECREF(a_obj);
Py_XDECREF(b_obj);
return ret;
}
static PyObject *
test_edit_cost(PyObject *self, PyObject *Py_UNUSED(args))
{
#define CHECK(a, b, n) do { \
if (check_edit_cost(a, b, n) < 0) { \
return NULL; \
} \
} while (0) \
CHECK("", "", 0);
CHECK("", "a", 2);
CHECK("a", "A", 1);
CHECK("Apple", "Aple", 2);
CHECK("Banana", "B@n@n@", 6);
CHECK("Cherry", "Cherry!", 2);
CHECK("---0---", "------", 2);
CHECK("abc", "y", 6);
CHECK("aa", "bb", 4);
CHECK("aaaaa", "AAAAA", 5);
CHECK("wxyz", "wXyZ", 2);
CHECK("wxyz", "wXyZ123", 8);
CHECK("Python", "Java", 12);
CHECK("Java", "C#", 8);
CHECK("AbstractFoobarManager", "abstract_foobar_manager", 3+2*2);
CHECK("CPython", "PyPy", 10);
CHECK("CPython", "pypy", 11);
CHECK("AttributeError", "AttributeErrop", 2);
CHECK("AttributeError", "AttributeErrorTests", 10);
#undef CHECK
Py_RETURN_NONE;
}
static int
check_bytes_find(const char *haystack0, const char *needle0,
int offset, Py_ssize_t expected)
{
Py_ssize_t len_haystack = strlen(haystack0);
Py_ssize_t len_needle = strlen(needle0);
Py_ssize_t result_1 = _PyBytes_Find(haystack0, len_haystack,
needle0, len_needle, offset);
if (result_1 != expected) {
PyErr_Format(PyExc_AssertionError,
"Incorrect result_1: '%s' in '%s' (offset=%zd)",
needle0, haystack0, offset);
return -1;
}
// Allocate new buffer with no NULL terminator.
char *haystack = PyMem_Malloc(len_haystack);
if (haystack == NULL) {
PyErr_NoMemory();
return -1;
}
char *needle = PyMem_Malloc(len_needle);
if (needle == NULL) {
PyMem_Free(haystack);
PyErr_NoMemory();
return -1;
}
memcpy(haystack, haystack0, len_haystack);
memcpy(needle, needle0, len_needle);
Py_ssize_t result_2 = _PyBytes_Find(haystack, len_haystack,
needle, len_needle, offset);
PyMem_Free(haystack);
PyMem_Free(needle);
if (result_2 != expected) {
PyErr_Format(PyExc_AssertionError,
"Incorrect result_2: '%s' in '%s' (offset=%zd)",
needle0, haystack0, offset);
return -1;
}
return 0;
}
static int
check_bytes_find_large(Py_ssize_t len_haystack, Py_ssize_t len_needle,
const char *needle)
{
char *zeros = PyMem_RawCalloc(len_haystack, 1);
if (zeros == NULL) {
PyErr_NoMemory();
return -1;
}
Py_ssize_t res = _PyBytes_Find(zeros, len_haystack, needle, len_needle, 0);
PyMem_RawFree(zeros);
if (res != -1) {
PyErr_Format(PyExc_AssertionError,
"check_bytes_find_large(%zd, %zd) found %zd",
len_haystack, len_needle, res);
return -1;
}
return 0;
}
static PyObject *
test_bytes_find(PyObject *self, PyObject *Py_UNUSED(args))
{
#define CHECK(H, N, O, E) do { \
if (check_bytes_find(H, N, O, E) < 0) { \
return NULL; \
} \
} while (0)
CHECK("", "", 0, 0);
CHECK("Python", "", 0, 0);
CHECK("Python", "", 3, 3);
CHECK("Python", "", 6, 6);
CHECK("Python", "yth", 0, 1);
CHECK("ython", "yth", 1, 1);
CHECK("thon", "yth", 2, -1);
CHECK("Python", "thon", 0, 2);
CHECK("ython", "thon", 1, 2);
CHECK("thon", "thon", 2, 2);
CHECK("hon", "thon", 3, -1);
CHECK("Pytho", "zz", 0, -1);
CHECK("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "ab", 0, -1);
CHECK("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "ba", 0, -1);
CHECK("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "bb", 0, -1);
CHECK("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab", "ab", 0, 30);
CHECK("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaba", "ba", 0, 30);
CHECK("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaabb", "bb", 0, 30);
#undef CHECK
// Hunt for segfaults
// n, m chosen here so that (n - m) % (m + 1) == 0
// This would make default_find in fastsearch.h access haystack[n].
if (check_bytes_find_large(2048, 2, "ab") < 0) {
return NULL;
}
if (check_bytes_find_large(4096, 16, "0123456789abcdef") < 0) {
return NULL;
}
if (check_bytes_find_large(8192, 2, "ab") < 0) {
return NULL;
}
if (check_bytes_find_large(16384, 4, "abcd") < 0) {
return NULL;
}
if (check_bytes_find_large(32768, 2, "ab") < 0) {
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *
normalize_path(PyObject *self, PyObject *filename)
{
Py_ssize_t size = -1;
wchar_t *encoded = PyUnicode_AsWideCharString(filename, &size);
if (encoded == NULL) {
return NULL;
}
PyObject *result = PyUnicode_FromWideChar(_Py_normpath(encoded, size), -1);
PyMem_Free(encoded);
return result;
}
static PyObject *
get_getpath_codeobject(PyObject *self, PyObject *Py_UNUSED(args)) {
return _Py_Get_Getpath_CodeObject();
}
static PyObject *
encode_locale_ex(PyObject *self, PyObject *args)
{
PyObject *unicode;
int current_locale = 0;
wchar_t *wstr;
PyObject *res = NULL;
const char *errors = NULL;
if (!PyArg_ParseTuple(args, "U|is", &unicode, ¤t_locale, &errors)) {
return NULL;
}
wstr = PyUnicode_AsWideCharString(unicode, NULL);
if (wstr == NULL) {
return NULL;
}
_Py_error_handler error_handler = _Py_GetErrorHandler(errors);
char *str = NULL;
size_t error_pos;
const char *reason = NULL;
int ret = _Py_EncodeLocaleEx(wstr,
&str, &error_pos, &reason,
current_locale, error_handler);
PyMem_Free(wstr);
switch(ret) {
case 0:
res = PyBytes_FromString(str);
PyMem_RawFree(str);
break;
case -1:
PyErr_NoMemory();
break;
case -2:
PyErr_Format(PyExc_RuntimeError, "encode error: pos=%zu, reason=%s",
error_pos, reason);
break;
case -3:
PyErr_SetString(PyExc_ValueError, "unsupported error handler");
break;
default:
PyErr_SetString(PyExc_ValueError, "unknown error code");
break;
}
return res;
}
static PyObject *
decode_locale_ex(PyObject *self, PyObject *args)
{
char *str;
int current_locale = 0;
PyObject *res = NULL;
const char *errors = NULL;
if (!PyArg_ParseTuple(args, "y|is", &str, ¤t_locale, &errors)) {
return NULL;
}
_Py_error_handler error_handler = _Py_GetErrorHandler(errors);
wchar_t *wstr = NULL;
size_t wlen = 0;
const char *reason = NULL;
int ret = _Py_DecodeLocaleEx(str,
&wstr, &wlen, &reason,
current_locale, error_handler);
switch(ret) {
case 0:
res = PyUnicode_FromWideChar(wstr, wlen);
PyMem_RawFree(wstr);
break;
case -1:
PyErr_NoMemory();
break;
case -2:
PyErr_Format(PyExc_RuntimeError, "decode error: pos=%zu, reason=%s",
wlen, reason);
break;
case -3:
PyErr_SetString(PyExc_ValueError, "unsupported error handler");
break;
default:
PyErr_SetString(PyExc_ValueError, "unknown error code");
break;
}
return res;
}
static PyObject *
set_eval_frame_default(PyObject *self, PyObject *Py_UNUSED(args))
{
module_state *state = get_module_state(self);
_PyInterpreterState_SetEvalFrameFunc(_PyInterpreterState_GET(), _PyEval_EvalFrameDefault);
Py_CLEAR(state->record_list);
Py_RETURN_NONE;
}
static PyObject *
record_eval(PyThreadState *tstate, struct _PyInterpreterFrame *f, int exc)
{
if (PyStackRef_FunctionCheck(f->f_funcobj)) {
PyFunctionObject *func = _PyFrame_GetFunction(f);
PyObject *module = _get_current_module();
assert(module != NULL);
module_state *state = get_module_state(module);
Py_DECREF(module);
int res = PyList_Append(state->record_list, func->func_name);
if (res < 0) {
return NULL;
}
}
return _PyEval_EvalFrameDefault(tstate, f, exc);
}
static PyObject *
set_eval_frame_record(PyObject *self, PyObject *list)
{
module_state *state = get_module_state(self);
if (!PyList_Check(list)) {
PyErr_SetString(PyExc_TypeError, "argument must be a list");
return NULL;
}
Py_XSETREF(state->record_list, Py_NewRef(list));
_PyInterpreterState_SetEvalFrameFunc(_PyInterpreterState_GET(), record_eval);
Py_RETURN_NONE;
}
/*[clinic input]
_testinternalcapi.compiler_cleandoc -> object
doc: unicode
C implementation of inspect.cleandoc().
[clinic start generated code]*/
static PyObject *
_testinternalcapi_compiler_cleandoc_impl(PyObject *module, PyObject *doc)
/*[clinic end generated code: output=2dd203a80feff5bc input=2de03fab931d9cdc]*/
{
return _PyCompile_CleanDoc(doc);
}
/*[clinic input]
_testinternalcapi.new_instruction_sequence -> object
Return a new, empty InstructionSequence.
[clinic start generated code]*/
static PyObject *
_testinternalcapi_new_instruction_sequence_impl(PyObject *module)
/*[clinic end generated code: output=ea4243fddb9057fd input=1dec2591b173be83]*/
{
return _PyInstructionSequence_New();
}
/*[clinic input]
_testinternalcapi.compiler_codegen -> object
ast: object
filename: object
optimize: int
compile_mode: int = 0
optimize_ast: int = 1
Apply compiler code generation to an AST.
[clinic start generated code]*/
static PyObject *
_testinternalcapi_compiler_codegen_impl(PyObject *module, PyObject *ast,
PyObject *filename, int optimize,
int compile_mode, int optimize_ast)
/*[clinic end generated code: output=b4bf87f1213effd1 input=ece7e3ca206d738a]*/
{
PyCompilerFlags flags = _PyCompilerFlags_INIT;
if (!optimize_ast)
flags.cf_flags = PyCF_DONT_OPTIMIZE_AST;
return _PyCompile_CodeGen(ast, filename, &flags, optimize, compile_mode);
}
/*[clinic input]
_testinternalcapi.optimize_cfg -> object
instructions: object
consts: object
nlocals: int
Apply compiler optimizations to an instruction list.
[clinic start generated code]*/
static PyObject *
_testinternalcapi_optimize_cfg_impl(PyObject *module, PyObject *instructions,
PyObject *consts, int nlocals)
/*[clinic end generated code: output=57c53c3a3dfd1df0 input=6a96d1926d58d7e5]*/
{
return _PyCompile_OptimizeCfg(instructions, consts, nlocals);
}
static int
get_nonnegative_int_from_dict(PyObject *dict, const char *key) {
PyObject *obj = PyDict_GetItemString(dict, key);
if (obj == NULL) {
return -1;
}
return PyLong_AsLong(obj);
}
/*[clinic input]
_testinternalcapi.assemble_code_object -> object
filename: object
instructions: object
metadata: object
Create a code object for the given instructions.
[clinic start generated code]*/
static PyObject *
_testinternalcapi_assemble_code_object_impl(PyObject *module,
PyObject *filename,
PyObject *instructions,
PyObject *metadata)
/*[clinic end generated code: output=38003dc16a930f48 input=e713ad77f08fb3a8]*/
{
assert(PyDict_Check(metadata));
_PyCompile_CodeUnitMetadata umd;
umd.u_name = PyDict_GetItemString(metadata, "name");
umd.u_qualname = PyDict_GetItemString(metadata, "qualname");
assert(PyUnicode_Check(umd.u_name));
assert(PyUnicode_Check(umd.u_qualname));
umd.u_consts = PyDict_GetItemString(metadata, "consts");
umd.u_names = PyDict_GetItemString(metadata, "names");
umd.u_varnames = PyDict_GetItemString(metadata, "varnames");
umd.u_cellvars = PyDict_GetItemString(metadata, "cellvars");
umd.u_freevars = PyDict_GetItemString(metadata, "freevars");
umd.u_fasthidden = PyDict_GetItemString(metadata, "fasthidden");
assert(PyDict_Check(umd.u_consts));
assert(PyDict_Check(umd.u_names));
assert(PyDict_Check(umd.u_varnames));
assert(PyDict_Check(umd.u_cellvars));
assert(PyDict_Check(umd.u_freevars));
assert(PyDict_Check(umd.u_fasthidden));
umd.u_argcount = get_nonnegative_int_from_dict(metadata, "argcount");
umd.u_posonlyargcount = get_nonnegative_int_from_dict(metadata, "posonlyargcount");
umd.u_kwonlyargcount = get_nonnegative_int_from_dict(metadata, "kwonlyargcount");
umd.u_firstlineno = get_nonnegative_int_from_dict(metadata, "firstlineno");
assert(umd.u_argcount >= 0);
assert(umd.u_posonlyargcount >= 0);
assert(umd.u_kwonlyargcount >= 0);
assert(umd.u_firstlineno >= 0);
return (PyObject*)_PyCompile_Assemble(&umd, filename, instructions);
}
// Maybe this could be replaced by get_interpreter_config()?
static PyObject *
get_interp_settings(PyObject *self, PyObject *args)
{
int interpid = -1;
if (!PyArg_ParseTuple(args, "|i:get_interp_settings", &interpid)) {
return NULL;
}
PyInterpreterState *interp = NULL;
if (interpid < 0) {
PyThreadState *tstate = _PyThreadState_GET();
interp = tstate ? tstate->interp : _PyInterpreterState_Main();
}
else if (interpid == 0) {
interp = _PyInterpreterState_Main();
}
else {
PyErr_Format(PyExc_NotImplementedError,
"%zd", interpid);
return NULL;
}
assert(interp != NULL);
PyObject *settings = PyDict_New();
if (settings == NULL) {
return NULL;
}
/* Add the feature flags. */
PyObject *flags = PyLong_FromUnsignedLong(interp->feature_flags);
if (flags == NULL) {
Py_DECREF(settings);
return NULL;
}
int res = PyDict_SetItemString(settings, "feature_flags", flags);
Py_DECREF(flags);
if (res != 0) {
Py_DECREF(settings);
return NULL;
}
/* "own GIL" */
PyObject *own_gil = interp->ceval.own_gil ? Py_True : Py_False;
if (PyDict_SetItemString(settings, "own_gil", own_gil) != 0) {
Py_DECREF(settings);
return NULL;
}
return settings;
}
static PyObject *
clear_extension(PyObject *self, PyObject *args)
{
PyObject *name = NULL, *filename = NULL;
if (!PyArg_ParseTuple(args, "OO:clear_extension", &name, &filename)) {
return NULL;
}
if (_PyImport_ClearExtension(name, filename) < 0) {
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *
write_perf_map_entry(PyObject *self, PyObject *args)
{
PyObject *code_addr_v;
const void *code_addr;
unsigned int code_size;
const char *entry_name;
if (!PyArg_ParseTuple(args, "OIs", &code_addr_v, &code_size, &entry_name))
return NULL;
code_addr = PyLong_AsVoidPtr(code_addr_v);
if (code_addr == NULL) {
return NULL;
}
int ret = PyUnstable_WritePerfMapEntry(code_addr, code_size, entry_name);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
return PyLong_FromLong(ret);
}
static PyObject *
perf_map_state_teardown(PyObject *Py_UNUSED(self), PyObject *Py_UNUSED(ignored))
{
PyUnstable_PerfMapState_Fini();
Py_RETURN_NONE;
}
static PyObject *
iframe_getcode(PyObject *self, PyObject *frame)
{
if (!PyFrame_Check(frame)) {
PyErr_SetString(PyExc_TypeError, "argument must be a frame");
return NULL;
}
struct _PyInterpreterFrame *f = ((PyFrameObject *)frame)->f_frame;
return PyUnstable_InterpreterFrame_GetCode(f);
}
static PyObject *
iframe_getline(PyObject *self, PyObject *frame)
{
if (!PyFrame_Check(frame)) {
PyErr_SetString(PyExc_TypeError, "argument must be a frame");
return NULL;
}
struct _PyInterpreterFrame *f = ((PyFrameObject *)frame)->f_frame;
return PyLong_FromLong(PyUnstable_InterpreterFrame_GetLine(f));
}
static PyObject *
iframe_getlasti(PyObject *self, PyObject *frame)
{
if (!PyFrame_Check(frame)) {
PyErr_SetString(PyExc_TypeError, "argument must be a frame");
return NULL;
}
struct _PyInterpreterFrame *f = ((PyFrameObject *)frame)->f_frame;
return PyLong_FromLong(PyUnstable_InterpreterFrame_GetLasti(f));
}
static PyObject *
get_co_framesize(PyObject *self, PyObject *arg)
{
if (!PyCode_Check(arg)) {
PyErr_SetString(PyExc_TypeError, "argument must be a code object");
return NULL;
}
PyCodeObject *code = (PyCodeObject *)arg;
return PyLong_FromLong(code->co_framesize);
}
static PyObject *
jit_enabled(PyObject *self, PyObject *arg)
{
return PyBool_FromLong(_PyInterpreterState_GET()->jit);
}
#ifdef _Py_TIER2
static PyObject *
add_executor_dependency(PyObject *self, PyObject *args)
{
PyObject *exec;
PyObject *obj;
if (!PyArg_ParseTuple(args, "OO", &exec, &obj)) {
return NULL;
}
_Py_Executor_DependsOn((_PyExecutorObject *)exec, obj);
Py_RETURN_NONE;
}
static PyObject *
invalidate_executors(PyObject *self, PyObject *obj)
{
PyInterpreterState *interp = PyInterpreterState_Get();
_Py_Executors_InvalidateDependency(interp, obj, 1);
Py_RETURN_NONE;
}
#endif
static int _pending_callback(void *arg)
{
/* we assume the argument is callable object to which we own a reference */
PyObject *callable = (PyObject *)arg;
PyObject *r = PyObject_CallNoArgs(callable);
Py_DECREF(callable);
Py_XDECREF(r);
return r != NULL ? 0 : -1;
}
/* The following requests n callbacks to _pending_callback. It can be
* run from any python thread.
*/
static PyObject *
pending_threadfunc(PyObject *self, PyObject *args, PyObject *kwargs)