/* Execute compiled code */ #define _PY_INTERPRETER #include "Python.h" #include "pycore_abstract.h" // _PyIndex_Check() #include "pycore_backoff.h" #include "pycore_call.h" // _PyObject_CallNoArgs() #include "pycore_cell.h" // PyCell_GetRef() #include "pycore_ceval.h" #include "pycore_code.h" #include "pycore_emscripten_signal.h" // _Py_CHECK_EMSCRIPTEN_SIGNALS #include "pycore_function.h" #include "pycore_instruments.h" #include "pycore_intrinsics.h" #include "pycore_jit.h" #include "pycore_long.h" // _PyLong_GetZero() #include "pycore_moduleobject.h" // PyModuleObject #include "pycore_object.h" // _PyObject_GC_TRACK() #include "pycore_opcode_metadata.h" // EXTRA_CASES #include "pycore_optimizer.h" // _PyUOpExecutor_Type #include "pycore_opcode_utils.h" // MAKE_FUNCTION_* #include "pycore_pyatomic_ft_wrappers.h" // FT_ATOMIC_* #include "pycore_pyerrors.h" // _PyErr_GetRaisedException() #include "pycore_pystate.h" // _PyInterpreterState_GET() #include "pycore_range.h" // _PyRangeIterObject #include "pycore_setobject.h" // _PySet_Update() #include "pycore_sliceobject.h" // _PyBuildSlice_ConsumeRefs #include "pycore_sysmodule.h" // _PySys_Audit() #include "pycore_tuple.h" // _PyTuple_ITEMS() #include "pycore_typeobject.h" // _PySuper_Lookup() #include "pycore_uop_ids.h" // Uops #include "pycore_pyerrors.h" #include "pycore_dict.h" #include "dictobject.h" #include "pycore_frame.h" #include "frameobject.h" // _PyInterpreterFrame_GetLine #include "opcode.h" #include "pydtrace.h" #include "setobject.h" #include "pycore_stackref.h" #include <stdbool.h> // bool #ifdef Py_DEBUG /* For debugging the interpreter: */ #define LLTRACE … #endif #if !defined(Py_BUILD_CORE) # error "ceval.c must be build with Py_BUILD_CORE define for best performance" #endif #if !defined(Py_DEBUG) && !defined(Py_TRACE_REFS) // GH-89279: The MSVC compiler does not inline these static inline functions // in PGO build in _PyEval_EvalFrameDefault(), because this function is over // the limit of PGO, and that limit cannot be configured. // Define them as macros to make sure that they are always inlined by the // preprocessor. #undef Py_IS_TYPE #define Py_IS_TYPE(ob, type) … #undef Py_XDECREF #define Py_XDECREF(arg) … #ifndef Py_GIL_DISABLED #undef Py_DECREF #define Py_DECREF(arg) … #undef _Py_DECREF_SPECIALIZED #define _Py_DECREF_SPECIALIZED(arg, dealloc) … #else // Py_GIL_DISABLED #undef Py_DECREF #define Py_DECREF … #undef _Py_DECREF_SPECIALIZED #define _Py_DECREF_SPECIALIZED … #endif #endif #ifdef LLTRACE static void dump_stack(_PyInterpreterFrame *frame, _PyStackRef *stack_pointer) { _PyStackRef *stack_base = _PyFrame_Stackbase(frame); PyObject *exc = PyErr_GetRaisedException(); printf(" stack=["); for (_PyStackRef *ptr = stack_base; ptr < stack_pointer; ptr++) { if (ptr != stack_base) { printf(", "); } PyObject *obj = PyStackRef_AsPyObjectBorrow(*ptr); if (obj == NULL) { printf("<nil>"); continue; } if ( obj == Py_None || PyBool_Check(obj) || PyLong_CheckExact(obj) || PyFloat_CheckExact(obj) || PyUnicode_CheckExact(obj) ) { if (PyObject_Print(obj, stdout, 0) == 0) { continue; } PyErr_Clear(); } // Don't call __repr__(), it might recurse into the interpreter. printf("<%s at %p>", Py_TYPE(obj)->tp_name, (void *)(ptr->bits)); } printf("]\n"); fflush(stdout); PyErr_SetRaisedException(exc); } static void lltrace_instruction(_PyInterpreterFrame *frame, _PyStackRef *stack_pointer, _Py_CODEUNIT *next_instr, int opcode, int oparg) { if (frame->owner == FRAME_OWNED_BY_CSTACK) { return; } dump_stack(frame, stack_pointer); const char *opname = _PyOpcode_OpName[opcode]; assert(opname != NULL); int offset = (int)(next_instr - _PyCode_CODE(_PyFrame_GetCode(frame))); if (OPCODE_HAS_ARG((int)_PyOpcode_Deopt[opcode])) { printf("%d: %s %d\n", offset * 2, opname, oparg); } else { printf("%d: %s\n", offset * 2, opname); } fflush(stdout); } static void lltrace_resume_frame(_PyInterpreterFrame *frame) { PyObject *fobj = PyStackRef_AsPyObjectBorrow(frame->f_funcobj); if (!PyStackRef_CodeCheck(frame->f_executable) || fobj == NULL || !PyFunction_Check(fobj) ) { printf("\nResuming frame.\n"); return; } PyFunctionObject *f = (PyFunctionObject *)fobj; PyObject *exc = PyErr_GetRaisedException(); PyObject *name = f->func_qualname; if (name == NULL) { name = f->func_name; } printf("\nResuming frame"); if (name) { printf(" for "); if (PyObject_Print(name, stdout, 0) < 0) { PyErr_Clear(); } } if (f->func_module) { printf(" in module "); if (PyObject_Print(f->func_module, stdout, 0) < 0) { PyErr_Clear(); } } printf("\n"); fflush(stdout); PyErr_SetRaisedException(exc); } static int maybe_lltrace_resume_frame(_PyInterpreterFrame *frame, _PyInterpreterFrame *skip_frame, PyObject *globals) { if (globals == NULL) { return 0; } if (frame == skip_frame) { return 0; } int r = PyDict_Contains(globals, &_Py_ID(__lltrace__)); if (r < 0) { return -1; } int lltrace = r * 5; // Levels 1-4 only trace uops if (!lltrace) { // Can also be controlled by environment variable char *python_lltrace = Py_GETENV("PYTHON_LLTRACE"); if (python_lltrace != NULL && *python_lltrace >= '0') { lltrace = *python_lltrace - '0'; // TODO: Parse an int and all that } } if (lltrace >= 5) { lltrace_resume_frame(frame); } return lltrace; } #endif static void monitor_reraise(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr); static int monitor_stop_iteration(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr, PyObject *value); static void monitor_unwind(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr); static int monitor_handled(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr, PyObject *exc); static void monitor_throw(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr); static int get_exception_handler(PyCodeObject *, int, int*, int*, int*); static _PyInterpreterFrame * _PyEvalFramePushAndInit_Ex(PyThreadState *tstate, _PyStackRef func, PyObject *locals, Py_ssize_t nargs, PyObject *callargs, PyObject *kwargs, _PyInterpreterFrame *previous); #ifdef HAVE_ERRNO_H #include <errno.h> #endif int Py_GetRecursionLimit(void) { … } void Py_SetRecursionLimit(int new_limit) { … } /* The function _Py_EnterRecursiveCallTstate() only calls _Py_CheckRecursiveCall() if the recursion_depth reaches recursion_limit. */ int _Py_CheckRecursiveCall(PyThreadState *tstate, const char *where) { … } const binaryfunc _PyEval_BinaryOps[] = …; const conversion_func _PyEval_ConversionFuncs[4] = …; const _Py_SpecialMethod _Py_SpecialMethods[] = …; const size_t _Py_FunctionAttributeOffsets[] = …; // PEP 634: Structural Pattern Matching // Return a tuple of values corresponding to keys, with error checks for // duplicate/missing keys. PyObject * _PyEval_MatchKeys(PyThreadState *tstate, PyObject *map, PyObject *keys) { … } // Extract a named attribute from the subject, with additional bookkeeping to // raise TypeErrors for repeated lookups. On failure, return NULL (with no // error set). Use _PyErr_Occurred(tstate) to disambiguate. static PyObject * match_class_attr(PyThreadState *tstate, PyObject *subject, PyObject *type, PyObject *name, PyObject *seen) { … } // On success (match), return a tuple of extracted attributes. On failure (no // match), return NULL. Use _PyErr_Occurred(tstate) to disambiguate. PyObject* _PyEval_MatchClass(PyThreadState *tstate, PyObject *subject, PyObject *type, Py_ssize_t nargs, PyObject *kwargs) { … } static int do_raise(PyThreadState *tstate, PyObject *exc, PyObject *cause); PyObject * PyEval_EvalCode(PyObject *co, PyObject *globals, PyObject *locals) { … } /* Interpreter main loop */ PyObject * PyEval_EvalFrame(PyFrameObject *f) { … } PyObject * PyEval_EvalFrameEx(PyFrameObject *f, int throwflag) { … } #include "ceval_macros.h" int _Py_CheckRecursiveCallPy( PyThreadState *tstate) { … } static const _Py_CODEUNIT _Py_INTERPRETER_TRAMPOLINE_INSTRUCTIONS[] = …; #ifdef Py_DEBUG extern void _PyUOpPrint(const _PyUOpInstruction *uop); #endif /* Disable unused label warnings. They are handy for debugging, even if computed gotos aren't used. */ /* TBD - what about other compilers? */ #if defined(__GNUC__) # pragma GCC diagnostic push # pragma GCC diagnostic ignored "-Wunused-label" #elif defined(_MSC_VER) /* MS_WINDOWS */ # pragma warning(push) # pragma warning(disable:4102) #endif PyObject ** _PyObjectArray_FromStackRefArray(_PyStackRef *input, Py_ssize_t nargs, PyObject **scratch) { … } void _PyObjectArray_Free(PyObject **array, PyObject **scratch) { … } /* _PyEval_EvalFrameDefault() is a *big* function, * so consume 3 units of C stack */ #define PY_EVAL_C_STACK_UNITS … /* _PyEval_EvalFrameDefault is too large to optimize for speed with PGO on MSVC when the JIT is enabled or GIL is disabled. Disable that optimization around this function only. If this is fixed upstream, we should gate this on the version of MSVC. */ #if (defined(_MSC_VER) && \ defined(_Py_USING_PGO) && \ (defined(_Py_JIT) || \ defined(Py_GIL_DISABLED))) #define DO_NOT_OPTIMIZE_INTERP_LOOP #endif #ifdef DO_NOT_OPTIMIZE_INTERP_LOOP # pragma optimize("t", off) /* This setting is reversed below following _PyEval_EvalFrameDefault */ #endif PyObject* _Py_HOT_FUNCTION _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int throwflag) { … } #ifdef DO_NOT_OPTIMIZE_INTERP_LOOP # pragma optimize("", on) #endif #if defined(__GNUC__) # pragma GCC diagnostic pop #elif defined(_MSC_VER) /* MS_WINDOWS */ # pragma warning(pop) #endif static void format_missing(PyThreadState *tstate, const char *kind, PyCodeObject *co, PyObject *names, PyObject *qualname) { … } static void missing_arguments(PyThreadState *tstate, PyCodeObject *co, Py_ssize_t missing, Py_ssize_t defcount, _PyStackRef *localsplus, PyObject *qualname) { … } static void too_many_positional(PyThreadState *tstate, PyCodeObject *co, Py_ssize_t given, PyObject *defaults, _PyStackRef *localsplus, PyObject *qualname) { … } static int positional_only_passed_as_keyword(PyThreadState *tstate, PyCodeObject *co, Py_ssize_t kwcount, PyObject* kwnames, PyObject *qualname) { … } static inline unsigned char * scan_back_to_entry_start(unsigned char *p) { … } static inline unsigned char * skip_to_next_entry(unsigned char *p, unsigned char *end) { … } #define MAX_LINEAR_SEARCH … static int get_exception_handler(PyCodeObject *code, int index, int *level, int *handler, int *lasti) { … } static int initialize_locals(PyThreadState *tstate, PyFunctionObject *func, _PyStackRef *localsplus, _PyStackRef const *args, Py_ssize_t argcount, PyObject *kwnames) { … } static void clear_thread_frame(PyThreadState *tstate, _PyInterpreterFrame * frame) { … } static void clear_gen_frame(PyThreadState *tstate, _PyInterpreterFrame * frame) { … } void _PyEval_FrameClearAndPop(PyThreadState *tstate, _PyInterpreterFrame * frame) { … } /* Consumes references to func, locals and all the args */ _PyInterpreterFrame * _PyEvalFramePushAndInit(PyThreadState *tstate, _PyStackRef func, PyObject *locals, _PyStackRef const* args, size_t argcount, PyObject *kwnames, _PyInterpreterFrame *previous) { … } static _PyInterpreterFrame * _PyEvalFramePushAndInit_UnTagged(PyThreadState *tstate, _PyStackRef func, PyObject *locals, PyObject *const* args, size_t argcount, PyObject *kwnames, _PyInterpreterFrame *previous) { … } /* Same as _PyEvalFramePushAndInit but takes an args tuple and kwargs dict. Steals references to func, callargs and kwargs. */ static _PyInterpreterFrame * _PyEvalFramePushAndInit_Ex(PyThreadState *tstate, _PyStackRef func, PyObject *locals, Py_ssize_t nargs, PyObject *callargs, PyObject *kwargs, _PyInterpreterFrame *previous) { … } PyObject * _PyEval_Vector(PyThreadState *tstate, PyFunctionObject *func, PyObject *locals, PyObject* const* args, size_t argcount, PyObject *kwnames) { … } /* Legacy API */ PyObject * PyEval_EvalCodeEx(PyObject *_co, PyObject *globals, PyObject *locals, PyObject *const *args, int argcount, PyObject *const *kws, int kwcount, PyObject *const *defs, int defcount, PyObject *kwdefs, PyObject *closure) { … } /* Logic for the raise statement (too complicated for inlining). This *consumes* a reference count to each of its arguments. */ static int do_raise(PyThreadState *tstate, PyObject *exc, PyObject *cause) { … } /* Logic for matching an exception in an except* clause (too complicated for inlining). */ int _PyEval_ExceptionGroupMatch(PyObject* exc_value, PyObject *match_type, PyObject **match, PyObject **rest) { … } /* Iterate v argcnt times and store the results on the stack (via decreasing sp). Return 1 for success, 0 if error. If argcntafter == -1, do a simple unpack. If it is >= 0, do an unpack with a variable target. */ int _PyEval_UnpackIterableStackRef(PyThreadState *tstate, _PyStackRef v_stackref, int argcnt, int argcntafter, _PyStackRef *sp) { … } static int do_monitor_exc(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr, int event) { … } static inline bool no_tools_for_global_event(PyThreadState *tstate, int event) { … } static inline bool no_tools_for_local_event(PyThreadState *tstate, _PyInterpreterFrame *frame, int event) { … } void _PyEval_MonitorRaise(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr) { … } static void monitor_reraise(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr) { … } static int monitor_stop_iteration(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr, PyObject *value) { … } static void monitor_unwind(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr) { … } static int monitor_handled(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr, PyObject *exc) { … } static void monitor_throw(PyThreadState *tstate, _PyInterpreterFrame *frame, _Py_CODEUNIT *instr) { … } void PyThreadState_EnterTracing(PyThreadState *tstate) { … } void PyThreadState_LeaveTracing(PyThreadState *tstate) { … } PyObject* _PyEval_CallTracing(PyObject *func, PyObject *args) { … } void PyEval_SetProfile(Py_tracefunc func, PyObject *arg) { … } void PyEval_SetProfileAllThreads(Py_tracefunc func, PyObject *arg) { … } void PyEval_SetTrace(Py_tracefunc func, PyObject *arg) { … } void PyEval_SetTraceAllThreads(Py_tracefunc func, PyObject *arg) { … } int _PyEval_SetCoroutineOriginTrackingDepth(int depth) { … } int _PyEval_GetCoroutineOriginTrackingDepth(void) { … } int _PyEval_SetAsyncGenFirstiter(PyObject *firstiter) { … } PyObject * _PyEval_GetAsyncGenFirstiter(void) { … } int _PyEval_SetAsyncGenFinalizer(PyObject *finalizer) { … } PyObject * _PyEval_GetAsyncGenFinalizer(void) { … } _PyInterpreterFrame * _PyEval_GetFrame(void) { … } PyFrameObject * PyEval_GetFrame(void) { … } PyObject * _PyEval_GetBuiltins(PyThreadState *tstate) { … } PyObject * PyEval_GetBuiltins(void) { … } /* Convenience function to get a builtin from its name */ PyObject * _PyEval_GetBuiltin(PyObject *name) { … } PyObject * _PyEval_GetBuiltinId(_Py_Identifier *name) { … } PyObject * PyEval_GetLocals(void) { … } PyObject * _PyEval_GetFrameLocals(void) { … } PyObject * PyEval_GetGlobals(void) { … } PyObject* PyEval_GetFrameLocals(void) { … } PyObject* PyEval_GetFrameGlobals(void) { … } PyObject* PyEval_GetFrameBuiltins(void) { … } int PyEval_MergeCompilerFlags(PyCompilerFlags *cf) { … } const char * PyEval_GetFuncName(PyObject *func) { … } const char * PyEval_GetFuncDesc(PyObject *func) { … } /* Extract a slice index from a PyLong or an object with the nb_index slot defined, and store in *pi. Silently reduce values larger than PY_SSIZE_T_MAX to PY_SSIZE_T_MAX, and silently boost values less than PY_SSIZE_T_MIN to PY_SSIZE_T_MIN. Return 0 on error, 1 on success. */ int _PyEval_SliceIndex(PyObject *v, Py_ssize_t *pi) { … } int _PyEval_SliceIndexNotNone(PyObject *v, Py_ssize_t *pi) { … } PyObject * _PyEval_ImportName(PyThreadState *tstate, _PyInterpreterFrame *frame, PyObject *name, PyObject *fromlist, PyObject *level) { … } PyObject * _PyEval_ImportFrom(PyThreadState *tstate, PyObject *v, PyObject *name) { … } #define CANNOT_CATCH_MSG … #define CANNOT_EXCEPT_STAR_EG … int _PyEval_CheckExceptTypeValid(PyThreadState *tstate, PyObject* right) { … } int _PyEval_CheckExceptStarTypeValid(PyThreadState *tstate, PyObject* right) { … } int _Py_Check_ArgsIterable(PyThreadState *tstate, PyObject *func, PyObject *args) { … } void _PyEval_FormatKwargsError(PyThreadState *tstate, PyObject *func, PyObject *kwargs) { … } void _PyEval_FormatExcCheckArg(PyThreadState *tstate, PyObject *exc, const char *format_str, PyObject *obj) { … } void _PyEval_FormatExcUnbound(PyThreadState *tstate, PyCodeObject *co, int oparg) { … } void _PyEval_FormatAwaitableError(PyThreadState *tstate, PyTypeObject *type, int oparg) { … } Py_ssize_t PyUnstable_Eval_RequestCodeExtraIndex(freefunc free) { … } /* Implement Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() as functions for the limited API. */ int Py_EnterRecursiveCall(const char *where) { … } void Py_LeaveRecursiveCall(void) { … } PyObject * _PyEval_GetANext(PyObject *aiter) { … } void _PyEval_LoadGlobalStackRef(PyObject *globals, PyObject *builtins, PyObject *name, _PyStackRef *writeto) { … } PyObject * _PyEval_GetAwaitable(PyObject *iterable, int oparg) { … } PyObject * _PyEval_LoadName(PyThreadState *tstate, _PyInterpreterFrame *frame, PyObject *name) { … }
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