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Add cpython patches
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Victor Stinner committed Oct 8, 2010
1 parent b84c20f commit 4f5a9be
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173 changes: 173 additions & 0 deletions cpython2_ceval.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,173 @@
Index: Python/ceval.c
===================================================================
--- Python/ceval.c (révision 84785)
+++ Python/ceval.c (copie de travail)
@@ -119,6 +119,7 @@
#define CALL_FLAG_VAR 1
#define CALL_FLAG_KW 2

+static PyObject *import_str = NULL;
#ifdef LLTRACE
static int lltrace;
static int prtrace(PyObject *, char *);
@@ -2054,7 +2055,10 @@
if (x == NULL) {
x = PyDict_GetItem(f->f_globals, w);
if (x == NULL) {
- x = PyDict_GetItem(f->f_builtins, w);
+ if (PyDict_CheckExact(f->f_builtins))
+ x = PyDict_GetItem(f->f_builtins, w);
+ else
+ x = PyObject_GetItem(f->f_builtins, w);
if (x == NULL) {
format_exc_check_arg(
PyExc_NameError,
@@ -2069,57 +2073,67 @@

case LOAD_GLOBAL:
w = GETITEM(names, oparg);
- if (PyString_CheckExact(w)) {
- /* Inline the PyDict_GetItem() calls.
- WARNING: this is an extreme speed hack.
- Do not try this at home. */
- long hash = ((PyStringObject *)w)->ob_shash;
- if (hash != -1) {
- PyDictObject *d;
- PyDictEntry *e;
- d = (PyDictObject *)(f->f_globals);
- e = d->ma_lookup(d, w, hash);
- if (e == NULL) {
- x = NULL;
- break;
+ if (PyDict_CheckExact(f->f_builtins)) {
+ if (PyString_CheckExact(w)) {
+ /* Inline the PyDict_GetItem() calls.
+ WARNING: this is an extreme speed hack.
+ Do not try this at home. */
+ long hash = ((PyStringObject *)w)->ob_shash;
+ if (hash != -1) {
+ PyDictObject *d;
+ PyDictEntry *e;
+ d = (PyDictObject *)(f->f_globals);
+ e = d->ma_lookup(d, w, hash);
+ if (e == NULL) {
+ x = NULL;
+ break;
+ }
+ x = e->me_value;
+ if (x != NULL) {
+ Py_INCREF(x);
+ PUSH(x);
+ continue;
+ }
+ d = (PyDictObject *)(f->f_builtins);
+ e = d->ma_lookup(d, w, hash);
+ if (e == NULL) {
+ x = NULL;
+ break;
+ }
+ x = e->me_value;
+ if (x != NULL) {
+ Py_INCREF(x);
+ PUSH(x);
+ continue;
+ }
+ goto load_global_error;
}
- x = e->me_value;
- if (x != NULL) {
- Py_INCREF(x);
- PUSH(x);
- continue;
- }
- d = (PyDictObject *)(f->f_builtins);
- e = d->ma_lookup(d, w, hash);
- if (e == NULL) {
- x = NULL;
- break;
- }
- x = e->me_value;
- if (x != NULL) {
- Py_INCREF(x);
- PUSH(x);
- continue;
- }
- goto load_global_error;
}
- }
- /* This is the un-inlined version of the code above */
- x = PyDict_GetItem(f->f_globals, w);
- if (x == NULL) {
- x = PyDict_GetItem(f->f_builtins, w);
+ /* This is the un-inlined version of the code above */
+ x = PyDict_GetItem(f->f_globals, w);
if (x == NULL) {
- load_global_error:
- format_exc_check_arg(
- PyExc_NameError,
- GLOBAL_NAME_ERROR_MSG, w);
- break;
+ x = PyDict_GetItem(f->f_builtins, w);
+ if (x == NULL)
+ goto load_global_error;
}
+ } else {
+ x = PyDict_GetItem(f->f_globals, w);
+ if (x == NULL) {
+ x = PyObject_GetItem(f->f_builtins, w);
+ if (x == NULL)
+ goto load_global_error;
+ }
}
Py_INCREF(x);
PUSH(x);
continue;

+load_global_error:
+ format_exc_check_arg(
+ PyExc_NameError,
+ GLOBAL_NAME_ERROR_MSG, w);
+ break;
+
case DELETE_FAST:
x = GETLOCAL(oparg);
if (x != NULL) {
@@ -2295,7 +2309,16 @@

case IMPORT_NAME:
w = GETITEM(names, oparg);
- x = PyDict_GetItemString(f->f_builtins, "__import__");
+ if (PyDict_CheckExact(f->f_builtins))
+ x = PyDict_GetItemString(f->f_builtins, "__import__");
+ else {
+ if (import_str == NULL) {
+ import_str = PyString_FromString("__import__");
+ if (import_str == NULL)
+ break;
+ }
+ x = PyObject_GetItem(f->f_builtins, import_str);
+ }
if (x == NULL) {
PyErr_SetString(PyExc_ImportError,
"__import__ not found");
Index: Objects/frameobject.c
===================================================================
--- Objects/frameobject.c (révision 84785)
+++ Objects/frameobject.c (copie de travail)
@@ -641,8 +641,6 @@
builtins = PyModule_GetDict(builtins);
assert(!builtins || PyDict_Check(builtins));
}
- else if (!PyDict_Check(builtins))
- builtins = NULL;
}
if (builtins == NULL) {
/* No builtins! Make up a minimal one
@@ -661,7 +659,6 @@
/* If we share the globals, we share the builtins.
Save a lookup and a call. */
builtins = back->f_builtins;
- assert(builtins != NULL && PyDict_Check(builtins));
Py_INCREF(builtins);
}
if (code->co_zombieframe != NULL) {
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