mirror of
https://github.com/python/cpython
synced 2024-09-16 03:10:05 +00:00
bpo-44032: Move data stack to thread from FrameObject. (GH-26076)
* Remove 'zombie' frames. We won't need them once we are allocating fixed-size frames. * Add co_nlocalplus field to code object to avoid recomputing size of locals + frees + cells. * Move locals, cells and freevars out of frame object into separate memory buffer. * Use per-threadstate allocated memory chunks for local variables. * Move globals and builtins from frame object to per-thread stack. * Move (slow) locals frame object to per-thread stack. * Move internal frame functions to internal header.
This commit is contained in:
parent
be4dd7fcd9
commit
b11a951f16
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@ -40,8 +40,8 @@ struct PyCodeObject {
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PyObject *co_name; /* unicode (name, for reference) */
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PyObject *co_linetable; /* string (encoding addr<->lineno mapping) See
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Objects/lnotab_notes.txt for details. */
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int co_nlocalsplus; /* Number of locals + free + cell variables */
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PyObject *co_exceptiontable; /* Byte string encoding exception handling table */
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void *co_zombieframe; /* for optimization only (see frameobject.c) */
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PyObject *co_weakreflist; /* to support weakrefs to code objects */
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/* Scratch space for extra data relating to the code object.
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Type is a void* to keep the format private in codeobject.c to force
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@ -20,12 +20,9 @@ enum _framestate {
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typedef signed char PyFrameState;
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struct _frame {
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PyObject_VAR_HEAD
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PyObject_HEAD
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struct _frame *f_back; /* previous frame, or NULL */
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PyCodeObject *f_code; /* code segment */
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PyObject *f_builtins; /* builtin symbol table (PyDictObject) */
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PyObject *f_globals; /* global symbol table (PyDictObject) */
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PyObject *f_locals; /* local symbol table (any mapping) */
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PyObject **f_valuestack; /* points after the last local */
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PyObject *f_trace; /* Trace function */
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/* Borrowed reference to a generator, or NULL */
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@ -36,7 +33,8 @@ struct _frame {
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PyFrameState f_state; /* What state the frame is in */
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char f_trace_lines; /* Emit per-line trace events? */
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char f_trace_opcodes; /* Emit per-opcode trace events? */
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PyObject *f_localsplus[1]; /* locals+stack, dynamically sized */
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char f_own_locals_memory; /* This frame owns the memory for the locals */
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PyObject **f_localsptr; /* Pointer to locals, cells, free */
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};
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static inline int _PyFrame_IsRunnable(struct _frame *f) {
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@ -62,7 +60,7 @@ PyAPI_FUNC(PyFrameObject *) PyFrame_New(PyThreadState *, PyCodeObject *,
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/* only internal use */
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PyFrameObject*
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_PyFrame_New_NoTrack(PyThreadState *, PyFrameConstructor *, PyObject *);
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_PyFrame_New_NoTrack(PyThreadState *, PyFrameConstructor *, PyObject *, PyObject **);
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/* The rest of the interface is specific for frame objects */
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@ -57,6 +57,12 @@ typedef struct _err_stackitem {
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} _PyErr_StackItem;
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typedef struct _stack_chunk {
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struct _stack_chunk *previous;
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size_t size;
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size_t top;
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PyObject * data[1]; /* Variable sized */
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} _PyStackChunk;
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// The PyThreadState typedef is in Include/pystate.h.
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struct _ts {
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@ -149,6 +155,9 @@ struct _ts {
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CFrame root_cframe;
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_PyStackChunk *datastack_chunk;
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PyObject **datastack_top;
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PyObject **datastack_limit;
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/* XXX signal handlers should also be here */
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};
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@ -18,7 +18,7 @@ extern "C" {
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/* Note: gi_frame can be NULL if the generator is "finished" */ \
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PyFrameObject *prefix##_frame; \
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/* The code object backing the generator */ \
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PyObject *prefix##_code; \
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PyCodeObject *prefix##_code; \
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/* List of weak reference. */ \
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PyObject *prefix##_weakreflist; \
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/* Name of the generator. */ \
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38
Include/internal/pycore_frame.h
Normal file
38
Include/internal/pycore_frame.h
Normal file
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@ -0,0 +1,38 @@
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#ifndef Py_INTERNAL_FRAME_H
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#define Py_INTERNAL_FRAME_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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FRAME_SPECIALS_GLOBALS_OFFSET = 0,
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FRAME_SPECIALS_BUILTINS_OFFSET = 1,
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FRAME_SPECIALS_LOCALS_OFFSET = 2,
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FRAME_SPECIALS_SIZE = 3
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};
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static inline PyObject **
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_PyFrame_Specials(PyFrameObject *f) {
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return &f->f_valuestack[-FRAME_SPECIALS_SIZE];
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}
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/* Returns a *borrowed* reference. */
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static inline PyObject *
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_PyFrame_GetGlobals(PyFrameObject *f)
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{
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return _PyFrame_Specials(f)[FRAME_SPECIALS_GLOBALS_OFFSET];
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}
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/* Returns a *borrowed* reference. */
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static inline PyObject *
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_PyFrame_GetBuiltins(PyFrameObject *f)
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{
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return _PyFrame_Specials(f)[FRAME_SPECIALS_BUILTINS_OFFSET];
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}
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int _PyFrame_TakeLocals(PyFrameObject *f);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_FRAME_H */
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@ -94,6 +94,11 @@ struct _PyTraceMalloc_Config {
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PyAPI_DATA(struct _PyTraceMalloc_Config) _Py_tracemalloc_config;
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/* Allocate memory directly from the O/S virtual memory system,
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* where supported. Otherwise fallback on malloc */
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void *_PyObject_VirtualAlloc(size_t size);
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void _PyObject_VirtualFree(void *, size_t size);
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#ifdef __cplusplus
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}
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@ -147,6 +147,9 @@ PyAPI_FUNC(int) _PyState_AddModule(
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PyAPI_FUNC(int) _PyOS_InterruptOccurred(PyThreadState *tstate);
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PyObject **_PyThreadState_PushLocals(PyThreadState *, int size);
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void _PyThreadState_PopLocals(PyThreadState *, PyObject **);
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#ifdef __cplusplus
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}
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#endif
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@ -666,15 +666,16 @@ def test_builtin_method(self):
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def test_frames(self):
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gdb_output = self.get_stack_trace('''
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import sys
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def foo(a, b, c):
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pass
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return sys._getframe(0)
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foo(3, 4, 5)
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id(foo.__code__)''',
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f = foo(3, 4, 5)
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id(f)''',
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breakpoint='builtin_id',
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cmds_after_breakpoint=['print (PyFrameObject*)(((PyCodeObject*)v)->co_zombieframe)']
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cmds_after_breakpoint=['print (PyFrameObject*)v']
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)
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self.assertTrue(re.match(r'.*\s+\$1 =\s+Frame 0x-?[0-9a-f]+, for file <string>, line 3, in foo \(\)\s+.*',
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self.assertTrue(re.match(r'.*\s+\$1 =\s+Frame 0x-?[0-9a-f]+, for file <string>, line 4, in foo \(a=3.*',
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gdb_output,
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re.DOTALL),
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'Unexpected gdb representation: %r\n%s' % (gdb_output, gdb_output))
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@ -1274,11 +1274,7 @@ class C(object): pass
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# frame
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import inspect
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x = inspect.currentframe()
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ncells = len(x.f_code.co_cellvars)
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nfrees = len(x.f_code.co_freevars)
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localsplus = x.f_code.co_stacksize + x.f_code.co_nlocals +\
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ncells + nfrees
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check(x, vsize('8P3i3c' + localsplus*'P'))
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check(x, size('5P3i4cP'))
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# function
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def func(): pass
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check(func, size('14P'))
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@ -0,0 +1,2 @@
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Move 'fast' locals and other variables from the frame object to a per-thread
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datastack.
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@ -280,6 +280,8 @@ PyCode_NewWithPosOnlyArgs(int argcount, int posonlyargcount, int kwonlyargcount,
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co->co_posonlyargcount = posonlyargcount;
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co->co_kwonlyargcount = kwonlyargcount;
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co->co_nlocals = nlocals;
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co->co_nlocalsplus = nlocals +
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(int)PyTuple_GET_SIZE(freevars) + (int)PyTuple_GET_SIZE(cellvars);
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co->co_stacksize = stacksize;
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co->co_flags = flags;
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Py_INCREF(code);
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@ -304,7 +306,6 @@ PyCode_NewWithPosOnlyArgs(int argcount, int posonlyargcount, int kwonlyargcount,
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co->co_linetable = linetable;
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Py_INCREF(exceptiontable);
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co->co_exceptiontable = exceptiontable;
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co->co_zombieframe = NULL;
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co->co_weakreflist = NULL;
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co->co_extra = NULL;
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@ -968,8 +969,6 @@ code_dealloc(PyCodeObject *co)
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Py_XDECREF(co->co_exceptiontable);
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if (co->co_cell2arg != NULL)
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PyMem_Free(co->co_cell2arg);
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if (co->co_zombieframe != NULL)
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PyObject_GC_Del(co->co_zombieframe);
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if (co->co_weakreflist != NULL)
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PyObject_ClearWeakRefs((PyObject*)co);
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PyObject_Free(co);
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@ -6,6 +6,7 @@
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#include "pycore_object.h" // _PyObject_GC_UNTRACK()
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#include "frameobject.h" // PyFrameObject
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#include "pycore_frame.h"
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#include "opcode.h" // EXTENDED_ARG
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#include "structmember.h" // PyMemberDef
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@ -13,9 +14,6 @@
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static PyMemberDef frame_memberlist[] = {
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{"f_back", T_OBJECT, OFF(f_back), READONLY},
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{"f_code", T_OBJECT, OFF(f_code), READONLY|PY_AUDIT_READ},
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{"f_builtins", T_OBJECT, OFF(f_builtins), READONLY},
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{"f_globals", T_OBJECT, OFF(f_globals), READONLY},
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{"f_trace_lines", T_BOOL, OFF(f_trace_lines), 0},
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{"f_trace_opcodes", T_BOOL, OFF(f_trace_opcodes), 0},
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{NULL} /* Sentinel */
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{
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if (PyFrame_FastToLocalsWithError(f) < 0)
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return NULL;
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Py_INCREF(f->f_locals);
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return f->f_locals;
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PyObject *locals = _PyFrame_Specials(f)[FRAME_SPECIALS_LOCALS_OFFSET];
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Py_INCREF(locals);
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return locals;
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}
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int
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return PyLong_FromLong(f->f_lasti*2);
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}
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static PyObject *
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frame_getglobals(PyFrameObject *f, void *closure)
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{
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PyObject *globals = _PyFrame_GetGlobals(f);
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if (globals == NULL) {
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globals = Py_None;
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}
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Py_INCREF(globals);
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return globals;
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}
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static PyObject *
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frame_getbuiltins(PyFrameObject *f, void *closure)
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{
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PyObject *builtins = _PyFrame_GetBuiltins(f);
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if (builtins == NULL) {
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builtins = Py_None;
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}
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Py_INCREF(builtins);
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return builtins;
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}
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static PyObject *
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frame_getcode(PyFrameObject *f, void *closure)
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{
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if (PySys_Audit("object.__getattr__", "Os", f, "f_code") < 0) {
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return NULL;
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}
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return (PyObject *)PyFrame_GetCode(f);
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}
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/* Given the index of the effective opcode,
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scan back to construct the oparg with EXTENDED_ARG */
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@ -554,50 +583,21 @@ static PyGetSetDef frame_getsetlist[] = {
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(setter)frame_setlineno, NULL},
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{"f_trace", (getter)frame_gettrace, (setter)frame_settrace, NULL},
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{"f_lasti", (getter)frame_getlasti, NULL, NULL},
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{"f_globals", (getter)frame_getglobals, NULL, NULL},
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{"f_builtins", (getter)frame_getbuiltins, NULL, NULL},
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{"f_code", (getter)frame_getcode, NULL, NULL},
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{0}
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};
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/* Stack frames are allocated and deallocated at a considerable rate.
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In an attempt to improve the speed of function calls, we:
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1. Hold a single "zombie" frame on each code object. This retains
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the allocated and initialised frame object from an invocation of
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the code object. The zombie is reanimated the next time we need a
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frame object for that code object. Doing this saves the malloc/
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realloc required when using a free_list frame that isn't the
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correct size. It also saves some field initialisation.
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In zombie mode, no field of PyFrameObject holds a reference, but
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the following fields are still valid:
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* ob_type, ob_size, f_code, f_valuestack;
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* f_locals, f_trace are NULL;
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* f_localsplus does not require re-allocation and
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the local variables in f_localsplus are NULL.
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2. We also maintain a separate free list of stack frames (just like
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floats are allocated in a special way -- see floatobject.c). When
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a stack frame is on the free list, only the following members have
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a meaning:
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In an attempt to improve the speed of function calls, we maintain
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a separate free list of stack frames (just like floats are
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allocated in a special way -- see floatobject.c). When a stack
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frame is on the free list, only the following members have a meaning:
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ob_type == &Frametype
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f_back next item on free list, or NULL
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f_stacksize size of value stack
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ob_size size of localsplus
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Note that the value and block stacks are preserved -- this can save
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another malloc() call or two (and two free() calls as well!).
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Also note that, unlike for integers, each frame object is a
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malloc'ed object in its own right -- it is only the actual calls to
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malloc() that we are trying to save here, not the administration.
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After all, while a typical program may make millions of calls, a
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call depth of more than 20 or 30 is probably already exceptional
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unless the program contains run-away recursion. I hope.
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Later, PyFrame_MAXFREELIST was added to bound the # of frames saved on
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free_list. Else programs creating lots of cyclic trash involving
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frames could provoke free_list into growing without bound.
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*/
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/* max value for numfree */
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#define PyFrame_MAXFREELIST 200
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}
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Py_TRASHCAN_SAFE_BEGIN(f)
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/* Kill all local variables */
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PyObject **valuestack = f->f_valuestack;
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for (PyObject **p = f->f_localsplus; p < valuestack; p++) {
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Py_CLEAR(*p);
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}
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PyCodeObject *co = f->f_code;
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/* Free stack */
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for (int i = 0; i < f->f_stackdepth; i++) {
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Py_XDECREF(f->f_valuestack[i]);
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/* Kill all local variables */
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if (f->f_localsptr) {
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for (int i = 0; i < co->co_nlocalsplus+FRAME_SPECIALS_SIZE; i++) {
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Py_CLEAR(f->f_localsptr[i]);
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}
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/* Free items on stack */
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for (int i = 0; i < f->f_stackdepth; i++) {
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Py_XDECREF(f->f_valuestack[i]);
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}
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if (f->f_own_locals_memory) {
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PyMem_Free(f->f_localsptr);
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f->f_own_locals_memory = 0;
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}
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}
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f->f_stackdepth = 0;
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Py_XDECREF(f->f_back);
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Py_DECREF(f->f_builtins);
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Py_DECREF(f->f_globals);
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Py_CLEAR(f->f_locals);
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Py_CLEAR(f->f_trace);
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PyCodeObject *co = f->f_code;
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if (co->co_zombieframe == NULL) {
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co->co_zombieframe = f;
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struct _Py_frame_state *state = get_frame_state();
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#ifdef Py_DEBUG
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// frame_dealloc() must not be called after _PyFrame_Fini()
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assert(state->numfree != -1);
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#endif
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if (state->numfree < PyFrame_MAXFREELIST) {
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++state->numfree;
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f->f_back = state->free_list;
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state->free_list = f;
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}
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else {
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struct _Py_frame_state *state = get_frame_state();
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#ifdef Py_DEBUG
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// frame_dealloc() must not be called after _PyFrame_Fini()
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assert(state->numfree != -1);
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#endif
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if (state->numfree < PyFrame_MAXFREELIST) {
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++state->numfree;
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f->f_back = state->free_list;
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state->free_list = f;
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}
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else {
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PyObject_GC_Del(f);
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}
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PyObject_GC_Del(f);
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}
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Py_DECREF(co);
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@ -654,24 +649,17 @@ frame_dealloc(PyFrameObject *f)
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static inline Py_ssize_t
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frame_nslots(PyFrameObject *frame)
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{
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PyCodeObject *code = frame->f_code;
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return (code->co_nlocals
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+ PyTuple_GET_SIZE(code->co_cellvars)
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+ PyTuple_GET_SIZE(code->co_freevars));
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return frame->f_valuestack - frame->f_localsptr;
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}
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static int
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frame_traverse(PyFrameObject *f, visitproc visit, void *arg)
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{
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Py_VISIT(f->f_back);
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Py_VISIT(f->f_code);
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Py_VISIT(f->f_builtins);
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Py_VISIT(f->f_globals);
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Py_VISIT(f->f_locals);
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Py_VISIT(f->f_trace);
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/* locals */
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||||
PyObject **fastlocals = f->f_localsplus;
|
||||
PyObject **fastlocals = f->f_localsptr;
|
||||
for (Py_ssize_t i = frame_nslots(f); --i >= 0; ++fastlocals) {
|
||||
Py_VISIT(*fastlocals);
|
||||
}
|
||||
|
@ -696,7 +684,7 @@ frame_tp_clear(PyFrameObject *f)
|
|||
Py_CLEAR(f->f_trace);
|
||||
|
||||
/* locals */
|
||||
PyObject **fastlocals = f->f_localsplus;
|
||||
PyObject **fastlocals = f->f_localsptr;
|
||||
for (Py_ssize_t i = frame_nslots(f); --i >= 0; ++fastlocals) {
|
||||
Py_CLEAR(*fastlocals);
|
||||
}
|
||||
|
@ -731,15 +719,12 @@ PyDoc_STRVAR(clear__doc__,
|
|||
static PyObject *
|
||||
frame_sizeof(PyFrameObject *f, PyObject *Py_UNUSED(ignored))
|
||||
{
|
||||
Py_ssize_t res, extras, ncells, nfrees;
|
||||
|
||||
PyCodeObject *code = f->f_code;
|
||||
ncells = PyTuple_GET_SIZE(code->co_cellvars);
|
||||
nfrees = PyTuple_GET_SIZE(code->co_freevars);
|
||||
extras = code->co_stacksize + code->co_nlocals + ncells + nfrees;
|
||||
/* subtract one as it is already included in PyFrameObject */
|
||||
res = sizeof(PyFrameObject) + (extras-1) * sizeof(PyObject *);
|
||||
|
||||
Py_ssize_t res;
|
||||
res = sizeof(PyFrameObject);
|
||||
if (f->f_own_locals_memory) {
|
||||
PyCodeObject *code = f->f_code;
|
||||
res += (code->co_nlocalsplus+code->co_stacksize) * sizeof(PyObject *);
|
||||
}
|
||||
return PyLong_FromSsize_t(res);
|
||||
}
|
||||
|
||||
|
@ -802,24 +787,33 @@ PyTypeObject PyFrame_Type = {
|
|||
_Py_IDENTIFIER(__builtins__);
|
||||
|
||||
static inline PyFrameObject*
|
||||
frame_alloc(PyCodeObject *code)
|
||||
frame_alloc(PyCodeObject *code, PyObject **localsarray)
|
||||
{
|
||||
PyFrameObject *f = code->co_zombieframe;
|
||||
if (f != NULL) {
|
||||
code->co_zombieframe = NULL;
|
||||
_Py_NewReference((PyObject *)f);
|
||||
assert(f->f_code == code);
|
||||
return f;
|
||||
int owns;
|
||||
PyFrameObject *f;
|
||||
if (localsarray == NULL) {
|
||||
int size = code->co_nlocalsplus+code->co_stacksize + FRAME_SPECIALS_SIZE;
|
||||
localsarray = PyMem_Malloc(sizeof(PyObject *)*size);
|
||||
if (localsarray == NULL) {
|
||||
PyErr_NoMemory();
|
||||
return NULL;
|
||||
}
|
||||
for (Py_ssize_t i=0; i < code->co_nlocalsplus; i++) {
|
||||
localsarray[i] = NULL;
|
||||
}
|
||||
owns = 1;
|
||||
}
|
||||
else {
|
||||
owns = 0;
|
||||
}
|
||||
|
||||
Py_ssize_t ncells = PyTuple_GET_SIZE(code->co_cellvars);
|
||||
Py_ssize_t nfrees = PyTuple_GET_SIZE(code->co_freevars);
|
||||
Py_ssize_t extras = code->co_stacksize + code->co_nlocals + ncells + nfrees;
|
||||
struct _Py_frame_state *state = get_frame_state();
|
||||
if (state->free_list == NULL)
|
||||
{
|
||||
f = PyObject_GC_NewVar(PyFrameObject, &PyFrame_Type, extras);
|
||||
f = PyObject_GC_New(PyFrameObject, &PyFrame_Type);
|
||||
if (f == NULL) {
|
||||
if (owns) {
|
||||
PyMem_Free(localsarray);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
@ -832,46 +826,60 @@ frame_alloc(PyCodeObject *code)
|
|||
--state->numfree;
|
||||
f = state->free_list;
|
||||
state->free_list = state->free_list->f_back;
|
||||
if (Py_SIZE(f) < extras) {
|
||||
PyFrameObject *new_f = PyObject_GC_Resize(PyFrameObject, f, extras);
|
||||
if (new_f == NULL) {
|
||||
PyObject_GC_Del(f);
|
||||
return NULL;
|
||||
}
|
||||
f = new_f;
|
||||
}
|
||||
_Py_NewReference((PyObject *)f);
|
||||
}
|
||||
|
||||
extras = code->co_nlocals + ncells + nfrees;
|
||||
f->f_valuestack = f->f_localsplus + extras;
|
||||
for (Py_ssize_t i=0; i < extras; i++) {
|
||||
f->f_localsplus[i] = NULL;
|
||||
}
|
||||
f->f_localsptr = localsarray;
|
||||
f->f_own_locals_memory = owns;
|
||||
return f;
|
||||
}
|
||||
|
||||
int
|
||||
_PyFrame_TakeLocals(PyFrameObject *f)
|
||||
{
|
||||
assert(f->f_own_locals_memory == 0);
|
||||
assert(f->f_stackdepth == 0);
|
||||
int size = frame_nslots(f);
|
||||
PyObject **copy = PyMem_Malloc(sizeof(PyObject *)*size);
|
||||
if (copy == NULL) {
|
||||
for (int i = 0; i < size; i++) {
|
||||
PyObject *o = f->f_localsptr[i];
|
||||
Py_XDECREF(o);
|
||||
}
|
||||
PyErr_NoMemory();
|
||||
return -1;
|
||||
}
|
||||
for (int i = 0; i < size; i++) {
|
||||
PyObject *o = f->f_localsptr[i];
|
||||
copy[i] = o;
|
||||
}
|
||||
f->f_own_locals_memory = 1;
|
||||
f->f_localsptr = copy;
|
||||
f->f_valuestack = copy + size;
|
||||
return 0;
|
||||
}
|
||||
|
||||
PyFrameObject* _Py_HOT_FUNCTION
|
||||
_PyFrame_New_NoTrack(PyThreadState *tstate, PyFrameConstructor *con, PyObject *locals)
|
||||
_PyFrame_New_NoTrack(PyThreadState *tstate, PyFrameConstructor *con, PyObject *locals, PyObject **localsarray)
|
||||
{
|
||||
assert(con != NULL);
|
||||
assert(con->fc_globals != NULL);
|
||||
assert(con->fc_builtins != NULL);
|
||||
assert(con->fc_code != NULL);
|
||||
assert(locals == NULL || PyMapping_Check(locals));
|
||||
PyCodeObject *code = (PyCodeObject *)con->fc_code;
|
||||
|
||||
PyFrameObject *f = frame_alloc((PyCodeObject *)con->fc_code);
|
||||
PyFrameObject *f = frame_alloc(code, localsarray);
|
||||
if (f == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
PyObject **specials = f->f_localsptr + code->co_nlocalsplus;
|
||||
f->f_valuestack = specials + FRAME_SPECIALS_SIZE;
|
||||
f->f_back = (PyFrameObject*)Py_XNewRef(tstate->frame);
|
||||
f->f_code = (PyCodeObject *)Py_NewRef(con->fc_code);
|
||||
f->f_builtins = Py_NewRef(con->fc_builtins);
|
||||
f->f_globals = Py_NewRef(con->fc_globals);
|
||||
f->f_locals = Py_XNewRef(locals);
|
||||
// f_valuestack initialized by frame_alloc()
|
||||
specials[FRAME_SPECIALS_BUILTINS_OFFSET] = Py_NewRef(con->fc_builtins);
|
||||
specials[FRAME_SPECIALS_GLOBALS_OFFSET] = Py_NewRef(con->fc_globals);
|
||||
specials[FRAME_SPECIALS_LOCALS_OFFSET] = Py_XNewRef(locals);
|
||||
f->f_trace = NULL;
|
||||
f->f_stackdepth = 0;
|
||||
f->f_trace_lines = 1;
|
||||
|
@ -880,7 +888,6 @@ _PyFrame_New_NoTrack(PyThreadState *tstate, PyFrameConstructor *con, PyObject *l
|
|||
f->f_lasti = -1;
|
||||
f->f_lineno = 0;
|
||||
f->f_state = FRAME_CREATED;
|
||||
// f_blockstack and f_localsplus initialized by frame_alloc()
|
||||
return f;
|
||||
}
|
||||
|
||||
|
@ -903,7 +910,7 @@ PyFrame_New(PyThreadState *tstate, PyCodeObject *code,
|
|||
.fc_kwdefaults = NULL,
|
||||
.fc_closure = NULL
|
||||
};
|
||||
PyFrameObject *f = _PyFrame_New_NoTrack(tstate, &desc, locals);
|
||||
PyFrameObject *f = _PyFrame_New_NoTrack(tstate, &desc, locals, NULL);
|
||||
if (f) {
|
||||
_PyObject_GC_TRACK(f);
|
||||
}
|
||||
|
@ -1022,9 +1029,9 @@ PyFrame_FastToLocalsWithError(PyFrameObject *f)
|
|||
PyErr_BadInternalCall();
|
||||
return -1;
|
||||
}
|
||||
locals = f->f_locals;
|
||||
locals = _PyFrame_Specials(f)[FRAME_SPECIALS_LOCALS_OFFSET];
|
||||
if (locals == NULL) {
|
||||
locals = f->f_locals = PyDict_New();
|
||||
locals = _PyFrame_Specials(f)[FRAME_SPECIALS_LOCALS_OFFSET] = PyDict_New();
|
||||
if (locals == NULL)
|
||||
return -1;
|
||||
}
|
||||
|
@ -1036,7 +1043,7 @@ PyFrame_FastToLocalsWithError(PyFrameObject *f)
|
|||
Py_TYPE(map)->tp_name);
|
||||
return -1;
|
||||
}
|
||||
fast = f->f_localsplus;
|
||||
fast = f->f_localsptr;
|
||||
j = PyTuple_GET_SIZE(map);
|
||||
if (j > co->co_nlocals)
|
||||
j = co->co_nlocals;
|
||||
|
@ -1083,7 +1090,7 @@ PyFrame_FastToLocals(PyFrameObject *f)
|
|||
void
|
||||
PyFrame_LocalsToFast(PyFrameObject *f, int clear)
|
||||
{
|
||||
/* Merge f->f_locals into fast locals */
|
||||
/* Merge locals into fast locals */
|
||||
PyObject *locals, *map;
|
||||
PyObject **fast;
|
||||
PyObject *error_type, *error_value, *error_traceback;
|
||||
|
@ -1092,7 +1099,7 @@ PyFrame_LocalsToFast(PyFrameObject *f, int clear)
|
|||
Py_ssize_t ncells, nfreevars;
|
||||
if (f == NULL)
|
||||
return;
|
||||
locals = f->f_locals;
|
||||
locals = _PyFrame_Specials(f)[FRAME_SPECIALS_LOCALS_OFFSET];
|
||||
co = f->f_code;
|
||||
map = co->co_varnames;
|
||||
if (locals == NULL)
|
||||
|
@ -1100,7 +1107,7 @@ PyFrame_LocalsToFast(PyFrameObject *f, int clear)
|
|||
if (!PyTuple_Check(map))
|
||||
return;
|
||||
PyErr_Fetch(&error_type, &error_value, &error_traceback);
|
||||
fast = f->f_localsplus;
|
||||
fast = f->f_localsptr;
|
||||
j = PyTuple_GET_SIZE(map);
|
||||
if (j > co->co_nlocals)
|
||||
j = co->co_nlocals;
|
||||
|
|
|
@ -176,7 +176,7 @@ gen_send_ex2(PyGenObject *gen, PyObject *arg, PyObject **presult,
|
|||
}
|
||||
|
||||
assert(_PyFrame_IsRunnable(f));
|
||||
assert(f->f_lasti >= 0 || ((unsigned char *)PyBytes_AS_STRING(f->f_code->co_code))[0] == GEN_START);
|
||||
assert(f->f_lasti >= 0 || ((unsigned char *)PyBytes_AS_STRING(gen->gi_code->co_code))[0] == GEN_START);
|
||||
/* Push arg onto the frame's value stack */
|
||||
result = arg ? arg : Py_None;
|
||||
Py_INCREF(result);
|
||||
|
@ -331,7 +331,7 @@ _PyGen_yf(PyGenObject *gen)
|
|||
PyFrameObject *f = gen->gi_frame;
|
||||
|
||||
if (f) {
|
||||
PyObject *bytecode = f->f_code->co_code;
|
||||
PyObject *bytecode = gen->gi_code->co_code;
|
||||
unsigned char *code = (unsigned char *)PyBytes_AS_STRING(bytecode);
|
||||
|
||||
if (f->f_lasti < 0) {
|
||||
|
@ -826,8 +826,7 @@ gen_new_with_qualname(PyTypeObject *type, PyFrameObject *f,
|
|||
}
|
||||
gen->gi_frame = f;
|
||||
f->f_gen = (PyObject *) gen;
|
||||
Py_INCREF(f->f_code);
|
||||
gen->gi_code = (PyObject *)(f->f_code);
|
||||
gen->gi_code = PyFrame_GetCode(f);
|
||||
gen->gi_weakreflist = NULL;
|
||||
gen->gi_exc_state.exc_type = NULL;
|
||||
gen->gi_exc_state.exc_value = NULL;
|
||||
|
@ -836,7 +835,7 @@ gen_new_with_qualname(PyTypeObject *type, PyFrameObject *f,
|
|||
if (name != NULL)
|
||||
gen->gi_name = name;
|
||||
else
|
||||
gen->gi_name = ((PyCodeObject *)gen->gi_code)->co_name;
|
||||
gen->gi_name = gen->gi_code->co_name;
|
||||
Py_INCREF(gen->gi_name);
|
||||
if (qualname != NULL)
|
||||
gen->gi_qualname = qualname;
|
||||
|
@ -1167,11 +1166,12 @@ compute_cr_origin(int origin_depth)
|
|||
}
|
||||
frame = PyEval_GetFrame();
|
||||
for (int i = 0; i < frame_count; ++i) {
|
||||
PyCodeObject *code = frame->f_code;
|
||||
PyCodeObject *code = PyFrame_GetCode(frame);
|
||||
PyObject *frameinfo = Py_BuildValue("OiO",
|
||||
code->co_filename,
|
||||
PyFrame_GetLineNumber(frame),
|
||||
code->co_name);
|
||||
Py_DECREF(code);
|
||||
if (!frameinfo) {
|
||||
Py_DECREF(cr_origin);
|
||||
return NULL;
|
||||
|
|
|
@ -552,6 +552,18 @@ PyObject_GetArenaAllocator(PyObjectArenaAllocator *allocator)
|
|||
*allocator = _PyObject_Arena;
|
||||
}
|
||||
|
||||
void *
|
||||
_PyObject_VirtualAlloc(size_t size)
|
||||
{
|
||||
return _PyObject_Arena.alloc(_PyObject_Arena.ctx, size);
|
||||
}
|
||||
|
||||
void
|
||||
_PyObject_VirtualFree(void *obj, size_t size)
|
||||
{
|
||||
_PyObject_Arena.free(_PyObject_Arena.ctx, obj, size);
|
||||
}
|
||||
|
||||
void
|
||||
PyObject_SetArenaAllocator(PyObjectArenaAllocator *allocator)
|
||||
{
|
||||
|
|
|
@ -8836,14 +8836,14 @@ super_init_without_args(PyFrameObject *f, PyCodeObject *co,
|
|||
return -1;
|
||||
}
|
||||
|
||||
PyObject *obj = f->f_localsplus[0];
|
||||
PyObject *obj = f->f_localsptr[0];
|
||||
Py_ssize_t i, n;
|
||||
if (obj == NULL && co->co_cell2arg) {
|
||||
/* The first argument might be a cell. */
|
||||
n = PyTuple_GET_SIZE(co->co_cellvars);
|
||||
for (i = 0; i < n; i++) {
|
||||
if (co->co_cell2arg[i] == 0) {
|
||||
PyObject *cell = f->f_localsplus[co->co_nlocals + i];
|
||||
PyObject *cell = f->f_localsptr[co->co_nlocals + i];
|
||||
assert(PyCell_Check(cell));
|
||||
obj = PyCell_GET(cell);
|
||||
break;
|
||||
|
@ -8871,7 +8871,7 @@ super_init_without_args(PyFrameObject *f, PyCodeObject *co,
|
|||
if (_PyUnicode_EqualToASCIIId(name, &PyId___class__)) {
|
||||
Py_ssize_t index = co->co_nlocals +
|
||||
PyTuple_GET_SIZE(co->co_cellvars) + i;
|
||||
PyObject *cell = f->f_localsplus[index];
|
||||
PyObject *cell = f->f_localsptr[index];
|
||||
if (cell == NULL || !PyCell_Check(cell)) {
|
||||
PyErr_SetString(PyExc_RuntimeError,
|
||||
"super(): bad __class__ cell");
|
||||
|
|
|
@ -5,6 +5,7 @@
|
|||
#include "pycore_pyerrors.h"
|
||||
#include "pycore_pystate.h" // _PyThreadState_GET()
|
||||
#include "frameobject.h" // PyFrame_GetBack()
|
||||
#include "pycore_frame.h"
|
||||
#include "clinic/_warnings.c.h"
|
||||
|
||||
#define MODULE_NAME "_warnings"
|
||||
|
@ -853,7 +854,7 @@ setup_context(Py_ssize_t stack_level, PyObject **filename, int *lineno,
|
|||
*lineno = 1;
|
||||
}
|
||||
else {
|
||||
globals = f->f_globals;
|
||||
globals = _PyFrame_GetGlobals(f);
|
||||
PyCodeObject *code = PyFrame_GetCode(f);
|
||||
*filename = code->co_filename;
|
||||
Py_DECREF(code);
|
||||
|
|
195
Python/ceval.c
195
Python/ceval.c
|
@ -26,6 +26,7 @@
|
|||
#include "code.h"
|
||||
#include "dictobject.h"
|
||||
#include "frameobject.h"
|
||||
#include "pycore_frame.h"
|
||||
#include "opcode.h"
|
||||
#include "pydtrace.h"
|
||||
#include "setobject.h"
|
||||
|
@ -1547,6 +1548,9 @@ eval_frame_handle_pending(PyThreadState *tstate)
|
|||
|
||||
#endif
|
||||
|
||||
#define GLOBALS() specials[FRAME_SPECIALS_GLOBALS_OFFSET]
|
||||
#define BUILTINS() specials[FRAME_SPECIALS_BUILTINS_OFFSET]
|
||||
#define LOCALS() specials[FRAME_SPECIALS_LOCALS_OFFSET]
|
||||
|
||||
PyObject* _Py_HOT_FUNCTION
|
||||
_PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
||||
|
@ -1565,7 +1569,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
const _Py_CODEUNIT *next_instr;
|
||||
int opcode; /* Current opcode */
|
||||
int oparg; /* Current opcode argument, if any */
|
||||
PyObject **fastlocals, **freevars;
|
||||
PyObject **fastlocals, **freevars, **specials;
|
||||
PyObject *retval = NULL; /* Return value */
|
||||
_Py_atomic_int * const eval_breaker = &tstate->interp->ceval.eval_breaker;
|
||||
PyCodeObject *co;
|
||||
|
@ -1598,6 +1602,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
|
||||
/* push frame */
|
||||
tstate->frame = f;
|
||||
specials = f->f_valuestack - FRAME_SPECIALS_SIZE;
|
||||
co = f->f_code;
|
||||
|
||||
if (trace_info.cframe.use_tracing) {
|
||||
|
@ -1641,8 +1646,8 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
|
||||
names = co->co_names;
|
||||
consts = co->co_consts;
|
||||
fastlocals = f->f_localsplus;
|
||||
freevars = f->f_localsplus + co->co_nlocals;
|
||||
fastlocals = f->f_localsptr;
|
||||
freevars = f->f_localsptr + co->co_nlocals;
|
||||
assert(PyBytes_Check(co->co_code));
|
||||
assert(PyBytes_GET_SIZE(co->co_code) <= INT_MAX);
|
||||
assert(PyBytes_GET_SIZE(co->co_code) % sizeof(_Py_CODEUNIT) == 0);
|
||||
|
@ -1692,7 +1697,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
|
||||
#ifdef LLTRACE
|
||||
{
|
||||
int r = _PyDict_ContainsId(f->f_globals, &PyId___ltrace__);
|
||||
int r = _PyDict_ContainsId(GLOBALS(), &PyId___ltrace__);
|
||||
if (r < 0) {
|
||||
goto exit_eval_frame;
|
||||
}
|
||||
|
@ -2726,8 +2731,8 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
_Py_IDENTIFIER(__build_class__);
|
||||
|
||||
PyObject *bc;
|
||||
if (PyDict_CheckExact(f->f_builtins)) {
|
||||
bc = _PyDict_GetItemIdWithError(f->f_builtins, &PyId___build_class__);
|
||||
if (PyDict_CheckExact(BUILTINS())) {
|
||||
bc = _PyDict_GetItemIdWithError(BUILTINS(), &PyId___build_class__);
|
||||
if (bc == NULL) {
|
||||
if (!_PyErr_Occurred(tstate)) {
|
||||
_PyErr_SetString(tstate, PyExc_NameError,
|
||||
|
@ -2741,7 +2746,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
PyObject *build_class_str = _PyUnicode_FromId(&PyId___build_class__);
|
||||
if (build_class_str == NULL)
|
||||
goto error;
|
||||
bc = PyObject_GetItem(f->f_builtins, build_class_str);
|
||||
bc = PyObject_GetItem(BUILTINS(), build_class_str);
|
||||
if (bc == NULL) {
|
||||
if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError))
|
||||
_PyErr_SetString(tstate, PyExc_NameError,
|
||||
|
@ -2756,7 +2761,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
case TARGET(STORE_NAME): {
|
||||
PyObject *name = GETITEM(names, oparg);
|
||||
PyObject *v = POP();
|
||||
PyObject *ns = f->f_locals;
|
||||
PyObject *ns = LOCALS();
|
||||
int err;
|
||||
if (ns == NULL) {
|
||||
_PyErr_Format(tstate, PyExc_SystemError,
|
||||
|
@ -2776,7 +2781,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
|
||||
case TARGET(DELETE_NAME): {
|
||||
PyObject *name = GETITEM(names, oparg);
|
||||
PyObject *ns = f->f_locals;
|
||||
PyObject *ns = LOCALS();
|
||||
int err;
|
||||
if (ns == NULL) {
|
||||
_PyErr_Format(tstate, PyExc_SystemError,
|
||||
|
@ -2868,7 +2873,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
PyObject *name = GETITEM(names, oparg);
|
||||
PyObject *v = POP();
|
||||
int err;
|
||||
err = PyDict_SetItem(f->f_globals, name, v);
|
||||
err = PyDict_SetItem(GLOBALS(), name, v);
|
||||
Py_DECREF(v);
|
||||
if (err != 0)
|
||||
goto error;
|
||||
|
@ -2878,7 +2883,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
case TARGET(DELETE_GLOBAL): {
|
||||
PyObject *name = GETITEM(names, oparg);
|
||||
int err;
|
||||
err = PyDict_DelItem(f->f_globals, name);
|
||||
err = PyDict_DelItem(GLOBALS(), name);
|
||||
if (err != 0) {
|
||||
if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) {
|
||||
format_exc_check_arg(tstate, PyExc_NameError,
|
||||
|
@ -2891,7 +2896,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
|
||||
case TARGET(LOAD_NAME): {
|
||||
PyObject *name = GETITEM(names, oparg);
|
||||
PyObject *locals = f->f_locals;
|
||||
PyObject *locals = LOCALS();
|
||||
PyObject *v;
|
||||
if (locals == NULL) {
|
||||
_PyErr_Format(tstate, PyExc_SystemError,
|
||||
|
@ -2916,7 +2921,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
}
|
||||
}
|
||||
if (v == NULL) {
|
||||
v = PyDict_GetItemWithError(f->f_globals, name);
|
||||
v = PyDict_GetItemWithError(GLOBALS(), name);
|
||||
if (v != NULL) {
|
||||
Py_INCREF(v);
|
||||
}
|
||||
|
@ -2924,8 +2929,8 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
goto error;
|
||||
}
|
||||
else {
|
||||
if (PyDict_CheckExact(f->f_builtins)) {
|
||||
v = PyDict_GetItemWithError(f->f_builtins, name);
|
||||
if (PyDict_CheckExact(BUILTINS())) {
|
||||
v = PyDict_GetItemWithError(BUILTINS(), name);
|
||||
if (v == NULL) {
|
||||
if (!_PyErr_Occurred(tstate)) {
|
||||
format_exc_check_arg(
|
||||
|
@ -2937,7 +2942,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
Py_INCREF(v);
|
||||
}
|
||||
else {
|
||||
v = PyObject_GetItem(f->f_builtins, name);
|
||||
v = PyObject_GetItem(BUILTINS(), name);
|
||||
if (v == NULL) {
|
||||
if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) {
|
||||
format_exc_check_arg(
|
||||
|
@ -2956,17 +2961,17 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
case TARGET(LOAD_GLOBAL): {
|
||||
PyObject *name;
|
||||
PyObject *v;
|
||||
if (PyDict_CheckExact(f->f_globals)
|
||||
&& PyDict_CheckExact(f->f_builtins))
|
||||
if (PyDict_CheckExact(GLOBALS())
|
||||
&& PyDict_CheckExact(BUILTINS()))
|
||||
{
|
||||
OPCACHE_CHECK();
|
||||
if (co_opcache != NULL && co_opcache->optimized > 0) {
|
||||
_PyOpcache_LoadGlobal *lg = &co_opcache->u.lg;
|
||||
|
||||
if (lg->globals_ver ==
|
||||
((PyDictObject *)f->f_globals)->ma_version_tag
|
||||
((PyDictObject *)GLOBALS())->ma_version_tag
|
||||
&& lg->builtins_ver ==
|
||||
((PyDictObject *)f->f_builtins)->ma_version_tag)
|
||||
((PyDictObject *)BUILTINS())->ma_version_tag)
|
||||
{
|
||||
PyObject *ptr = lg->ptr;
|
||||
OPCACHE_STAT_GLOBAL_HIT();
|
||||
|
@ -2978,8 +2983,8 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
}
|
||||
|
||||
name = GETITEM(names, oparg);
|
||||
v = _PyDict_LoadGlobal((PyDictObject *)f->f_globals,
|
||||
(PyDictObject *)f->f_builtins,
|
||||
v = _PyDict_LoadGlobal((PyDictObject *)GLOBALS(),
|
||||
(PyDictObject *)BUILTINS(),
|
||||
name);
|
||||
if (v == NULL) {
|
||||
if (!_PyErr_Occurred(tstate)) {
|
||||
|
@ -3003,9 +3008,9 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
|
||||
co_opcache->optimized = 1;
|
||||
lg->globals_ver =
|
||||
((PyDictObject *)f->f_globals)->ma_version_tag;
|
||||
((PyDictObject *)GLOBALS())->ma_version_tag;
|
||||
lg->builtins_ver =
|
||||
((PyDictObject *)f->f_builtins)->ma_version_tag;
|
||||
((PyDictObject *)BUILTINS())->ma_version_tag;
|
||||
lg->ptr = v; /* borrowed */
|
||||
}
|
||||
|
||||
|
@ -3016,7 +3021,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
|
||||
/* namespace 1: globals */
|
||||
name = GETITEM(names, oparg);
|
||||
v = PyObject_GetItem(f->f_globals, name);
|
||||
v = PyObject_GetItem(GLOBALS(), name);
|
||||
if (v == NULL) {
|
||||
if (!_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) {
|
||||
goto error;
|
||||
|
@ -3024,7 +3029,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
_PyErr_Clear(tstate);
|
||||
|
||||
/* namespace 2: builtins */
|
||||
v = PyObject_GetItem(f->f_builtins, name);
|
||||
v = PyObject_GetItem(BUILTINS(), name);
|
||||
if (v == NULL) {
|
||||
if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) {
|
||||
format_exc_check_arg(
|
||||
|
@ -3073,7 +3078,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
}
|
||||
|
||||
case TARGET(LOAD_CLASSDEREF): {
|
||||
PyObject *name, *value, *locals = f->f_locals;
|
||||
PyObject *name, *value, *locals = LOCALS();
|
||||
Py_ssize_t idx;
|
||||
assert(locals);
|
||||
assert(oparg >= PyTuple_GET_SIZE(co->co_cellvars));
|
||||
|
@ -3266,14 +3271,14 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
_Py_IDENTIFIER(__annotations__);
|
||||
int err;
|
||||
PyObject *ann_dict;
|
||||
if (f->f_locals == NULL) {
|
||||
if (LOCALS() == NULL) {
|
||||
_PyErr_Format(tstate, PyExc_SystemError,
|
||||
"no locals found when setting up annotations");
|
||||
goto error;
|
||||
}
|
||||
/* check if __annotations__ in locals()... */
|
||||
if (PyDict_CheckExact(f->f_locals)) {
|
||||
ann_dict = _PyDict_GetItemIdWithError(f->f_locals,
|
||||
if (PyDict_CheckExact(LOCALS())) {
|
||||
ann_dict = _PyDict_GetItemIdWithError(LOCALS(),
|
||||
&PyId___annotations__);
|
||||
if (ann_dict == NULL) {
|
||||
if (_PyErr_Occurred(tstate)) {
|
||||
|
@ -3284,7 +3289,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
if (ann_dict == NULL) {
|
||||
goto error;
|
||||
}
|
||||
err = _PyDict_SetItemId(f->f_locals,
|
||||
err = _PyDict_SetItemId(LOCALS(),
|
||||
&PyId___annotations__, ann_dict);
|
||||
Py_DECREF(ann_dict);
|
||||
if (err != 0) {
|
||||
|
@ -3298,7 +3303,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
if (ann_str == NULL) {
|
||||
goto error;
|
||||
}
|
||||
ann_dict = PyObject_GetItem(f->f_locals, ann_str);
|
||||
ann_dict = PyObject_GetItem(LOCALS(), ann_str);
|
||||
if (ann_dict == NULL) {
|
||||
if (!_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) {
|
||||
goto error;
|
||||
|
@ -3308,7 +3313,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
if (ann_dict == NULL) {
|
||||
goto error;
|
||||
}
|
||||
err = PyObject_SetItem(f->f_locals, ann_str, ann_dict);
|
||||
err = PyObject_SetItem(LOCALS(), ann_str, ann_dict);
|
||||
Py_DECREF(ann_dict);
|
||||
if (err != 0) {
|
||||
goto error;
|
||||
|
@ -3707,7 +3712,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
goto error;
|
||||
}
|
||||
|
||||
locals = f->f_locals;
|
||||
locals = LOCALS();
|
||||
if (locals == NULL) {
|
||||
_PyErr_SetString(tstate, PyExc_SystemError,
|
||||
"no locals found during 'import *'");
|
||||
|
@ -4313,7 +4318,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
|
|||
PyObject *qualname = POP();
|
||||
PyObject *codeobj = POP();
|
||||
PyFunctionObject *func = (PyFunctionObject *)
|
||||
PyFunction_NewWithQualName(codeobj, f->f_globals, qualname);
|
||||
PyFunction_NewWithQualName(codeobj, GLOBALS(), qualname);
|
||||
|
||||
Py_DECREF(codeobj);
|
||||
Py_DECREF(qualname);
|
||||
|
@ -4869,25 +4874,14 @@ get_exception_handler(PyCodeObject *code, int index, int *level, int *handler, i
|
|||
return 0;
|
||||
}
|
||||
|
||||
PyFrameObject *
|
||||
_PyEval_MakeFrameVector(PyThreadState *tstate,
|
||||
PyFrameConstructor *con, PyObject *locals,
|
||||
PyObject *const *args, Py_ssize_t argcount,
|
||||
PyObject *kwnames)
|
||||
static int
|
||||
initialize_locals(PyThreadState *tstate, PyFrameConstructor *con,
|
||||
PyObject **fastlocals, PyObject *const *args,
|
||||
Py_ssize_t argcount, PyObject *kwnames)
|
||||
{
|
||||
assert(is_tstate_valid(tstate));
|
||||
|
||||
PyCodeObject *co = (PyCodeObject*)con->fc_code;
|
||||
assert(con->fc_defaults == NULL || PyTuple_CheckExact(con->fc_defaults));
|
||||
const Py_ssize_t total_args = co->co_argcount + co->co_kwonlyargcount;
|
||||
|
||||
/* Create the frame */
|
||||
PyFrameObject *f = _PyFrame_New_NoTrack(tstate, con, locals);
|
||||
if (f == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
PyObject **fastlocals = f->f_localsplus;
|
||||
PyObject **freevars = f->f_localsplus + co->co_nlocals;
|
||||
PyObject **freevars = fastlocals + co->co_nlocals;
|
||||
|
||||
/* Create a dictionary for keyword parameters (**kwags) */
|
||||
PyObject *kwdict;
|
||||
|
@ -5093,25 +5087,33 @@ _PyEval_MakeFrameVector(PyThreadState *tstate,
|
|||
freevars[PyTuple_GET_SIZE(co->co_cellvars) + i] = o;
|
||||
}
|
||||
|
||||
return f;
|
||||
return 0;
|
||||
|
||||
fail: /* Jump here from prelude on failure */
|
||||
return -1;
|
||||
|
||||
/* decref'ing the frame can cause __del__ methods to get invoked,
|
||||
which can call back into Python. While we're done with the
|
||||
current Python frame (f), the associated C stack is still in use,
|
||||
so recursion_depth must be boosted for the duration.
|
||||
*/
|
||||
if (Py_REFCNT(f) > 1) {
|
||||
Py_DECREF(f);
|
||||
_PyObject_GC_TRACK(f);
|
||||
}
|
||||
|
||||
|
||||
PyFrameObject *
|
||||
_PyEval_MakeFrameVector(PyThreadState *tstate,
|
||||
PyFrameConstructor *con, PyObject *locals,
|
||||
PyObject *const *args, Py_ssize_t argcount,
|
||||
PyObject *kwnames, PyObject** localsarray)
|
||||
{
|
||||
assert(is_tstate_valid(tstate));
|
||||
assert(con->fc_defaults == NULL || PyTuple_CheckExact(con->fc_defaults));
|
||||
|
||||
/* Create the frame */
|
||||
PyFrameObject *f = _PyFrame_New_NoTrack(tstate, con, locals, localsarray);
|
||||
if (f == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
else {
|
||||
++tstate->recursion_depth;
|
||||
if (initialize_locals(tstate, con, f->f_localsptr, args, argcount, kwnames)) {
|
||||
Py_DECREF(f);
|
||||
--tstate->recursion_depth;
|
||||
return NULL;
|
||||
}
|
||||
return NULL;
|
||||
return f;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
|
@ -5149,30 +5151,59 @@ _PyEval_Vector(PyThreadState *tstate, PyFrameConstructor *con,
|
|||
PyObject* const* args, size_t argcount,
|
||||
PyObject *kwnames)
|
||||
{
|
||||
PyObject **localsarray;
|
||||
PyCodeObject *code = (PyCodeObject *)con->fc_code;
|
||||
int is_coro = code->co_flags &
|
||||
(CO_GENERATOR | CO_COROUTINE | CO_ASYNC_GENERATOR);
|
||||
if (is_coro) {
|
||||
localsarray = NULL;
|
||||
}
|
||||
else {
|
||||
int size = code->co_nlocalsplus + code->co_stacksize +
|
||||
FRAME_SPECIALS_SIZE;
|
||||
localsarray = _PyThreadState_PushLocals(tstate, size);
|
||||
if (localsarray == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
PyFrameObject *f = _PyEval_MakeFrameVector(
|
||||
tstate, con, locals, args, argcount, kwnames);
|
||||
tstate, con, locals, args, argcount, kwnames, localsarray);
|
||||
if (f == NULL) {
|
||||
if (!is_coro) {
|
||||
_PyThreadState_PopLocals(tstate, localsarray);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
if (((PyCodeObject *)con->fc_code)->co_flags & (CO_GENERATOR | CO_COROUTINE | CO_ASYNC_GENERATOR)) {
|
||||
if (is_coro) {
|
||||
return make_coro(con, f);
|
||||
}
|
||||
PyObject *retval = _PyEval_EvalFrame(tstate, f, 0);
|
||||
assert(f->f_stackdepth == 0);
|
||||
|
||||
/* decref'ing the frame can cause __del__ methods to get invoked,
|
||||
which can call back into Python. While we're done with the
|
||||
current Python frame (f), the associated C stack is still in use,
|
||||
so recursion_depth must be boosted for the duration.
|
||||
*/
|
||||
assert (!is_coro);
|
||||
assert(f->f_own_locals_memory == 0);
|
||||
if (Py_REFCNT(f) > 1) {
|
||||
Py_DECREF(f);
|
||||
_PyObject_GC_TRACK(f);
|
||||
if (_PyFrame_TakeLocals(f)) {
|
||||
Py_CLEAR(retval);
|
||||
}
|
||||
}
|
||||
else {
|
||||
++tstate->recursion_depth;
|
||||
f->f_localsptr = NULL;
|
||||
for (int i = 0; i < code->co_nlocalsplus + FRAME_SPECIALS_SIZE; i++) {
|
||||
Py_XDECREF(localsarray[i]);
|
||||
}
|
||||
Py_DECREF(f);
|
||||
--tstate->recursion_depth;
|
||||
}
|
||||
_PyThreadState_PopLocals(tstate, localsarray);
|
||||
return retval;
|
||||
}
|
||||
|
||||
|
@ -5778,7 +5809,7 @@ _PyEval_GetBuiltins(PyThreadState *tstate)
|
|||
{
|
||||
PyFrameObject *frame = tstate->frame;
|
||||
if (frame != NULL) {
|
||||
return frame->f_builtins;
|
||||
return _PyFrame_GetBuiltins(frame);
|
||||
}
|
||||
return tstate->interp->builtins;
|
||||
}
|
||||
|
@ -5819,8 +5850,10 @@ PyEval_GetLocals(void)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
assert(current_frame->f_locals != NULL);
|
||||
return current_frame->f_locals;
|
||||
PyObject *locals = current_frame->f_valuestack[
|
||||
FRAME_SPECIALS_LOCALS_OFFSET-FRAME_SPECIALS_SIZE];
|
||||
assert(locals != NULL);
|
||||
return locals;
|
||||
}
|
||||
|
||||
PyObject *
|
||||
|
@ -5831,9 +5864,7 @@ PyEval_GetGlobals(void)
|
|||
if (current_frame == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
assert(current_frame->f_globals != NULL);
|
||||
return current_frame->f_globals;
|
||||
return _PyFrame_GetGlobals(current_frame);
|
||||
}
|
||||
|
||||
int
|
||||
|
@ -6084,14 +6115,15 @@ import_name(PyThreadState *tstate, PyFrameObject *f,
|
|||
PyObject *import_func, *res;
|
||||
PyObject* stack[5];
|
||||
|
||||
import_func = _PyDict_GetItemIdWithError(f->f_builtins, &PyId___import__);
|
||||
import_func = _PyDict_GetItemIdWithError(_PyFrame_GetBuiltins(f), &PyId___import__);
|
||||
if (import_func == NULL) {
|
||||
if (!_PyErr_Occurred(tstate)) {
|
||||
_PyErr_SetString(tstate, PyExc_ImportError, "__import__ not found");
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
PyObject *locals = f->f_valuestack[
|
||||
FRAME_SPECIALS_LOCALS_OFFSET-FRAME_SPECIALS_SIZE];
|
||||
/* Fast path for not overloaded __import__. */
|
||||
if (import_func == tstate->interp->import_func) {
|
||||
int ilevel = _PyLong_AsInt(level);
|
||||
|
@ -6100,8 +6132,8 @@ import_name(PyThreadState *tstate, PyFrameObject *f,
|
|||
}
|
||||
res = PyImport_ImportModuleLevelObject(
|
||||
name,
|
||||
f->f_globals,
|
||||
f->f_locals == NULL ? Py_None : f->f_locals,
|
||||
_PyFrame_GetGlobals(f),
|
||||
locals == NULL ? Py_None :locals,
|
||||
fromlist,
|
||||
ilevel);
|
||||
return res;
|
||||
|
@ -6110,8 +6142,8 @@ import_name(PyThreadState *tstate, PyFrameObject *f,
|
|||
Py_INCREF(import_func);
|
||||
|
||||
stack[0] = name;
|
||||
stack[1] = f->f_globals;
|
||||
stack[2] = f->f_locals == NULL ? Py_None : f->f_locals;
|
||||
stack[1] = _PyFrame_GetGlobals(f);
|
||||
stack[2] = locals == NULL ? Py_None : locals;
|
||||
stack[3] = fromlist;
|
||||
stack[4] = level;
|
||||
res = _PyObject_FastCall(import_func, stack, 5);
|
||||
|
@ -6436,14 +6468,14 @@ unicode_concatenate(PyThreadState *tstate, PyObject *v, PyObject *w,
|
|||
switch (opcode) {
|
||||
case STORE_FAST:
|
||||
{
|
||||
PyObject **fastlocals = f->f_localsplus;
|
||||
PyObject **fastlocals = f->f_localsptr;
|
||||
if (GETLOCAL(oparg) == v)
|
||||
SETLOCAL(oparg, NULL);
|
||||
break;
|
||||
}
|
||||
case STORE_DEREF:
|
||||
{
|
||||
PyObject **freevars = (f->f_localsplus +
|
||||
PyObject **freevars = (f->f_localsptr +
|
||||
f->f_code->co_nlocals);
|
||||
PyObject *c = freevars[oparg];
|
||||
if (PyCell_GET(c) == v) {
|
||||
|
@ -6456,7 +6488,8 @@ unicode_concatenate(PyThreadState *tstate, PyObject *v, PyObject *w,
|
|||
{
|
||||
PyObject *names = f->f_code->co_names;
|
||||
PyObject *name = GETITEM(names, oparg);
|
||||
PyObject *locals = f->f_locals;
|
||||
PyObject *locals = f->f_valuestack[
|
||||
FRAME_SPECIALS_LOCALS_OFFSET-FRAME_SPECIALS_SIZE];
|
||||
if (locals && PyDict_CheckExact(locals)) {
|
||||
PyObject *w = PyDict_GetItemWithError(locals, name);
|
||||
if ((w == v && PyDict_DelItem(locals, name) != 0) ||
|
||||
|
|
|
@ -607,6 +607,23 @@ PyInterpreterState_GetDict(PyInterpreterState *interp)
|
|||
return interp->dict;
|
||||
}
|
||||
|
||||
/* Minimum size of data stack chunk */
|
||||
#define DATA_STACK_CHUNK_SIZE (16*1024)
|
||||
|
||||
static _PyStackChunk*
|
||||
allocate_chunk(int size_in_bytes, _PyStackChunk* previous)
|
||||
{
|
||||
assert(size_in_bytes % sizeof(PyObject **) == 0);
|
||||
_PyStackChunk *res = _PyObject_VirtualAlloc(size_in_bytes);
|
||||
if (res == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
res->previous = previous;
|
||||
res->size = size_in_bytes;
|
||||
res->top = 0;
|
||||
return res;
|
||||
}
|
||||
|
||||
static PyThreadState *
|
||||
new_threadstate(PyInterpreterState *interp, int init)
|
||||
{
|
||||
|
@ -658,6 +675,14 @@ new_threadstate(PyInterpreterState *interp, int init)
|
|||
|
||||
tstate->context = NULL;
|
||||
tstate->context_ver = 1;
|
||||
tstate->datastack_chunk = allocate_chunk(DATA_STACK_CHUNK_SIZE, NULL);
|
||||
if (tstate->datastack_chunk == NULL) {
|
||||
PyMem_RawFree(tstate);
|
||||
return NULL;
|
||||
}
|
||||
/* If top points to entry 0, then _PyThreadState_PopLocals will try to pop this chunk */
|
||||
tstate->datastack_top = &tstate->datastack_chunk->data[1];
|
||||
tstate->datastack_limit = (PyObject **)(((char *)tstate->datastack_chunk) + DATA_STACK_CHUNK_SIZE);
|
||||
|
||||
if (init) {
|
||||
_PyThreadState_Init(tstate);
|
||||
|
@ -872,6 +897,13 @@ PyThreadState_Clear(PyThreadState *tstate)
|
|||
if (tstate->on_delete != NULL) {
|
||||
tstate->on_delete(tstate->on_delete_data);
|
||||
}
|
||||
_PyStackChunk *chunk = tstate->datastack_chunk;
|
||||
tstate->datastack_chunk = NULL;
|
||||
while (chunk != NULL) {
|
||||
_PyStackChunk *prev = chunk->previous;
|
||||
_PyObject_VirtualFree(chunk, chunk->size);
|
||||
chunk = prev;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
@ -906,7 +938,6 @@ tstate_delete_common(PyThreadState *tstate,
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
_PyThreadState_Delete(PyThreadState *tstate, int check_current)
|
||||
{
|
||||
|
@ -1969,6 +2000,59 @@ _Py_GetConfig(void)
|
|||
return _PyInterpreterState_GetConfig(tstate->interp);
|
||||
}
|
||||
|
||||
#define MINIMUM_OVERHEAD 1000
|
||||
|
||||
PyObject **
|
||||
_PyThreadState_PushLocals(PyThreadState *tstate, int size)
|
||||
{
|
||||
assert(((unsigned)size) < INT_MAX/sizeof(PyObject*)/2);
|
||||
PyObject **res = tstate->datastack_top;
|
||||
PyObject **top = res + size;
|
||||
if (top >= tstate->datastack_limit) {
|
||||
int allocate_size = DATA_STACK_CHUNK_SIZE;
|
||||
while (allocate_size < (int)sizeof(PyObject*)*(size + MINIMUM_OVERHEAD)) {
|
||||
allocate_size *= 2;
|
||||
}
|
||||
_PyStackChunk *new = allocate_chunk(allocate_size, tstate->datastack_chunk);
|
||||
if (new == NULL) {
|
||||
goto error;
|
||||
}
|
||||
tstate->datastack_chunk->top = tstate->datastack_top - &tstate->datastack_chunk->data[0];
|
||||
tstate->datastack_chunk = new;
|
||||
tstate->datastack_limit = (PyObject **)(((char *)new) + allocate_size);
|
||||
res = &new->data[0];
|
||||
tstate->datastack_top = res + size;
|
||||
}
|
||||
else {
|
||||
tstate->datastack_top = top;
|
||||
}
|
||||
for (int i=0; i < size; i++) {
|
||||
res[i] = NULL;
|
||||
}
|
||||
return res;
|
||||
error:
|
||||
_PyErr_SetString(tstate, PyExc_MemoryError, "Out of memory");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void
|
||||
_PyThreadState_PopLocals(PyThreadState *tstate, PyObject **locals)
|
||||
{
|
||||
if (locals == &tstate->datastack_chunk->data[0]) {
|
||||
_PyStackChunk *chunk = tstate->datastack_chunk;
|
||||
_PyStackChunk *previous = chunk->previous;
|
||||
tstate->datastack_top = &previous->data[previous->top];
|
||||
tstate->datastack_chunk = previous;
|
||||
_PyObject_VirtualFree(chunk, chunk->size);
|
||||
tstate->datastack_limit = (PyObject **)(((char *)previous) + previous->size);
|
||||
}
|
||||
else {
|
||||
assert(tstate->datastack_top >= locals);
|
||||
tstate->datastack_top = locals;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
|
|
@ -1,5 +1,6 @@
|
|||
#include "Python.h"
|
||||
#include "frameobject.h"
|
||||
#include "pycore_frame.h"
|
||||
|
||||
#include "pycore_pyerrors.h"
|
||||
|
||||
|
@ -208,9 +209,10 @@ offer_suggestions_for_name_error(PyNameErrorObject *exc)
|
|||
|
||||
PyFrameObject *frame = traceback->tb_frame;
|
||||
assert(frame != NULL);
|
||||
PyCodeObject *code = frame->f_code;
|
||||
PyCodeObject *code = PyFrame_GetCode(frame);
|
||||
assert(code != NULL && code->co_varnames != NULL);
|
||||
PyObject *dir = PySequence_List(code->co_varnames);
|
||||
Py_DECREF(code);
|
||||
if (dir == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
@ -221,7 +223,7 @@ offer_suggestions_for_name_error(PyNameErrorObject *exc)
|
|||
return suggestions;
|
||||
}
|
||||
|
||||
dir = PySequence_List(frame->f_globals);
|
||||
dir = PySequence_List(_PyFrame_GetGlobals(frame));
|
||||
if (dir == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
@ -231,7 +233,7 @@ offer_suggestions_for_name_error(PyNameErrorObject *exc)
|
|||
return suggestions;
|
||||
}
|
||||
|
||||
dir = PySequence_List(frame->f_builtins);
|
||||
dir = PySequence_List(_PyFrame_GetBuiltins(frame));
|
||||
if (dir == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
|
|
@ -854,6 +854,8 @@ class PyNoneStructPtr(PyObjectPtr):
|
|||
def proxyval(self, visited):
|
||||
return None
|
||||
|
||||
FRAME_SPECIALS_GLOBAL_OFFSET = 0
|
||||
FRAME_SPECIALS_BUILTINS_OFFSET = 1
|
||||
|
||||
class PyFrameObjectPtr(PyObjectPtr):
|
||||
_typename = 'PyFrameObject'
|
||||
|
@ -879,13 +881,19 @@ def iter_locals(self):
|
|||
if self.is_optimized_out():
|
||||
return
|
||||
|
||||
f_localsplus = self.field('f_localsplus')
|
||||
f_localsplus = self.field('f_localsptr')
|
||||
for i in safe_range(self.co_nlocals):
|
||||
pyop_value = PyObjectPtr.from_pyobject_ptr(f_localsplus[i])
|
||||
if not pyop_value.is_null():
|
||||
pyop_name = PyObjectPtr.from_pyobject_ptr(self.co_varnames[i])
|
||||
yield (pyop_name, pyop_value)
|
||||
|
||||
def _f_globals(self):
|
||||
f_localsplus = self.field('f_localsptr')
|
||||
nlocalsplus = int_from_int(self.co.field('co_nlocalsplus'))
|
||||
index = nlocalsplus + FRAME_SPECIALS_GLOBAL_OFFSET
|
||||
return PyObjectPtr.from_pyobject_ptr(f_localsplus[index])
|
||||
|
||||
def iter_globals(self):
|
||||
'''
|
||||
Yield a sequence of (name,value) pairs of PyObjectPtr instances, for
|
||||
|
@ -894,9 +902,15 @@ def iter_globals(self):
|
|||
if self.is_optimized_out():
|
||||
return ()
|
||||
|
||||
pyop_globals = self.pyop_field('f_globals')
|
||||
pyop_globals = self._f_globals()
|
||||
return pyop_globals.iteritems()
|
||||
|
||||
def _f_builtins(self):
|
||||
f_localsplus = self.field('f_localsptr')
|
||||
nlocalsplus = int_from_int(self.co.field('co_nlocalsplus'))
|
||||
index = nlocalsplus + FRAME_SPECIALS_BUILTINS_OFFSET
|
||||
return PyObjectPtr.from_pyobject_ptr(f_localsplus[index])
|
||||
|
||||
def iter_builtins(self):
|
||||
'''
|
||||
Yield a sequence of (name,value) pairs of PyObjectPtr instances, for
|
||||
|
@ -905,7 +919,7 @@ def iter_builtins(self):
|
|||
if self.is_optimized_out():
|
||||
return ()
|
||||
|
||||
pyop_builtins = self.pyop_field('f_builtins')
|
||||
pyop_builtins = self._f_builtins()
|
||||
return pyop_builtins.iteritems()
|
||||
|
||||
def get_var_by_name(self, name):
|
||||
|
|
Loading…
Reference in a new issue