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Commit 2a3e2937 authored by Arnaud Fontaine's avatar Arnaud Fontaine Committed by Kazuhiko Shiozaki
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python: Add patch to support pytracemalloc and add the corresponding egg to ERP5.

parent 6f009a9f
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component/python-2.7/buildout.cfg
View file @ 2a3e2937
......@@ -40,6 +40,7 @@ executable = ${:prefix}/bin/python${:version}
patch-options = -p1
patches =
${:_profile_base_location_}/fix_compiler_module_issue_20613.patch#94443a77f903e9de880a029967fa6aa7
${:_profile_base_location_}/pytracemalloc_pep445.patch#46662cf0ccc7cb7cfb8289bbfd68b21a
url =
http://python.org/ftp/python/${:package_version}/Python-${:package_version}${:package_version_suffix}.tar.xz
configure-options =
......
component/python-2.7/pytracemalloc_pep445.patch 0 → 100644
View file @ 2a3e2937
diff -urN Python-2.7.10.ORIG/Include/objimpl.h Python-2.7.10/Include/objimpl.h
--- Python-2.7.10.ORIG/Include/objimpl.h 2015-05-24 01:08:59.000000000 +0900
+++ Python-2.7.10/Include/objimpl.h 2015-10-13 17:31:13.771317208 +0900
@@ -98,10 +98,8 @@
PyAPI_FUNC(void *) PyObject_Realloc(void *, size_t);
PyAPI_FUNC(void) PyObject_Free(void *);
-
/* Macros */
-#ifdef WITH_PYMALLOC
-#ifdef PYMALLOC_DEBUG /* WITH_PYMALLOC && PYMALLOC_DEBUG */
+#if defined(WITH_PYMALLOC) && defined(PYMALLOC_DEBUG)
PyAPI_FUNC(void *) _PyObject_DebugMalloc(size_t nbytes);
PyAPI_FUNC(void *) _PyObject_DebugRealloc(void *p, size_t nbytes);
PyAPI_FUNC(void) _PyObject_DebugFree(void *p);
@@ -115,28 +113,17 @@
PyAPI_FUNC(void *) _PyMem_DebugMalloc(size_t nbytes);
PyAPI_FUNC(void *) _PyMem_DebugRealloc(void *p, size_t nbytes);
PyAPI_FUNC(void) _PyMem_DebugFree(void *p);
-#define PyObject_MALLOC _PyObject_DebugMalloc
-#define PyObject_Malloc _PyObject_DebugMalloc
-#define PyObject_REALLOC _PyObject_DebugRealloc
-#define PyObject_Realloc _PyObject_DebugRealloc
-#define PyObject_FREE _PyObject_DebugFree
-#define PyObject_Free _PyObject_DebugFree
+#endif
-#else /* WITH_PYMALLOC && ! PYMALLOC_DEBUG */
#define PyObject_MALLOC PyObject_Malloc
#define PyObject_REALLOC PyObject_Realloc
#define PyObject_FREE PyObject_Free
-#endif
-
-#else /* ! WITH_PYMALLOC */
-#define PyObject_MALLOC PyMem_MALLOC
-#define PyObject_REALLOC PyMem_REALLOC
-#define PyObject_FREE PyMem_FREE
-
-#endif /* WITH_PYMALLOC */
-
#define PyObject_Del PyObject_Free
-#define PyObject_DEL PyObject_FREE
+#define PyObject_DEL PyObject_Free
+
+#ifdef PYMALLOC_DEBUG /* WITH_PYMALLOC && PYMALLOC_DEBUG */
+PyAPI_FUNC(void) _PyObject_DebugMallocStats(void);
+#endif
/* for source compatibility with 2.2 */
#define _PyObject_Del PyObject_Free
diff -urN Python-2.7.10.ORIG/Include/pymem.h Python-2.7.10/Include/pymem.h
--- Python-2.7.10.ORIG/Include/pymem.h 2015-05-24 01:09:00.000000000 +0900
+++ Python-2.7.10/Include/pymem.h 2015-10-13 17:31:13.771317208 +0900
@@ -11,6 +11,11 @@
extern "C" {
#endif
+PyAPI_FUNC(void *) PyMem_RawMalloc(size_t size);
+PyAPI_FUNC(void *) PyMem_RawRealloc(void *ptr, size_t new_size);
+PyAPI_FUNC(void) PyMem_RawFree(void *ptr);
+
+
/* BEWARE:
Each interface exports both functions and macros. Extension modules should
@@ -49,21 +54,17 @@
performed on failure (no exception is set, no warning is printed, etc).
*/
-PyAPI_FUNC(void *) PyMem_Malloc(size_t);
-PyAPI_FUNC(void *) PyMem_Realloc(void *, size_t);
-PyAPI_FUNC(void) PyMem_Free(void *);
+PyAPI_FUNC(void *) PyMem_Malloc(size_t size);
+PyAPI_FUNC(void *) PyMem_Realloc(void *ptr, size_t new_size);
+PyAPI_FUNC(void) PyMem_Free(void *ptr);
+
+PyAPI_FUNC(char *) _PyMem_RawStrdup(const char *str);
+PyAPI_FUNC(char *) _PyMem_Strdup(const char *str);
/* Starting from Python 1.6, the wrappers Py_{Malloc,Realloc,Free} are
no longer supported. They used to call PyErr_NoMemory() on failure. */
/* Macros. */
-#ifdef PYMALLOC_DEBUG
-/* Redirect all memory operations to Python's debugging allocator. */
-#define PyMem_MALLOC _PyMem_DebugMalloc
-#define PyMem_REALLOC _PyMem_DebugRealloc
-#define PyMem_FREE _PyMem_DebugFree
-
-#else /* ! PYMALLOC_DEBUG */
/* PyMem_MALLOC(0) means malloc(1). Some systems would return NULL
for malloc(0), which would be treated as an error. Some platforms
@@ -71,13 +72,9 @@
pymalloc. To solve these problems, allocate an extra byte. */
/* Returns NULL to indicate error if a negative size or size larger than
Py_ssize_t can represent is supplied. Helps prevents security holes. */
-#define PyMem_MALLOC(n) ((size_t)(n) > (size_t)PY_SSIZE_T_MAX ? NULL \
- : malloc((n) ? (n) : 1))
-#define PyMem_REALLOC(p, n) ((size_t)(n) > (size_t)PY_SSIZE_T_MAX ? NULL \
- : realloc((p), (n) ? (n) : 1))
-#define PyMem_FREE free
-
-#endif /* PYMALLOC_DEBUG */
+#define PyMem_MALLOC(n) PyMem_Malloc(n)
+#define PyMem_REALLOC(p, n) PyMem_Realloc(p, n)
+#define PyMem_FREE(p) PyMem_Free(p)
/*
* Type-oriented memory interface
@@ -115,6 +112,67 @@
#define PyMem_Del PyMem_Free
#define PyMem_DEL PyMem_FREE
+typedef enum {
+ /* PyMem_RawMalloc(), PyMem_RawRealloc() and PyMem_RawFree() */
+ PYMEM_DOMAIN_RAW,
+
+ /* PyMem_Malloc(), PyMem_Realloc() and PyMem_Free() */
+ PYMEM_DOMAIN_MEM,
+
+ /* PyObject_Malloc(), PyObject_Realloc() and PyObject_Free() */
+ PYMEM_DOMAIN_OBJ
+} PyMemAllocatorDomain;
+
+typedef struct {
+ /* user context passed as the first argument to the 3 functions */
+ void *ctx;
+
+ /* allocate a memory block */
+ void* (*malloc) (void *ctx, size_t size);
+
+ /* allocate or resize a memory block */
+ void* (*realloc) (void *ctx, void *ptr, size_t new_size);
+
+ /* release a memory block */
+ void (*free) (void *ctx, void *ptr);
+} PyMemAllocator;
+
+/* Get the memory block allocator of the specified domain. */
+PyAPI_FUNC(void) PyMem_GetAllocator(PyMemAllocatorDomain domain,
+ PyMemAllocator *allocator);
+
+/* Set the memory block allocator of the specified domain.
+
+ The new allocator must return a distinct non-NULL pointer when requesting
+ zero bytes.
+
+ For the PYMEM_DOMAIN_RAW domain, the allocator must be thread-safe: the GIL
+ is not held when the allocator is called.
+
+ If the new allocator is not a hook (don't call the previous allocator), the
+ PyMem_SetupDebugHooks() function must be called to reinstall the debug hooks
+ on top on the new allocator. */
+PyAPI_FUNC(void) PyMem_SetAllocator(PyMemAllocatorDomain domain,
+ PyMemAllocator *allocator);
+
+/* Setup hooks to detect bugs in the following Python memory allocator
+ functions:
+
+ - PyMem_RawMalloc(), PyMem_RawRealloc(), PyMem_RawFree()
+ - PyMem_Malloc(), PyMem_Realloc(), PyMem_Free()
+ - PyObject_Malloc(), PyObject_Realloc() and PyObject_Free()
+
+ Newly allocated memory is filled with the byte 0xCB, freed memory is filled
+ with the byte 0xDB. Additionnal checks:
+
+ - detect API violations, ex: PyObject_Free() called on a buffer allocated
+ by PyMem_Malloc()
+ - detect write before the start of the buffer (buffer underflow)
+ - detect write after the end of the buffer (buffer overflow)
+
+ The function does nothing if Python is not compiled is debug mode. */
+PyAPI_FUNC(void) PyMem_SetupDebugHooks(void);
+
#ifdef __cplusplus
}
#endif
diff -urN Python-2.7.10.ORIG/Objects/object.c Python-2.7.10/Objects/object.c
--- Python-2.7.10.ORIG/Objects/object.c 2015-05-24 01:09:22.000000000 +0900
+++ Python-2.7.10/Objects/object.c 2015-10-13 17:31:13.771317208 +0900
@@ -2335,27 +2335,6 @@
Py_ssize_t (*_Py_abstract_hack)(PyObject *) = PyObject_Size;
-/* Python's malloc wrappers (see pymem.h) */
-
-void *
-PyMem_Malloc(size_t nbytes)
-{
- return PyMem_MALLOC(nbytes);
-}
-
-void *
-PyMem_Realloc(void *p, size_t nbytes)
-{
- return PyMem_REALLOC(p, nbytes);
-}
-
-void
-PyMem_Free(void *p)
-{
- PyMem_FREE(p);
-}
-
-
/* These methods are used to control infinite recursion in repr, str, print,
etc. Container objects that may recursively contain themselves,
e.g. builtin dictionaries and lists, should used Py_ReprEnter() and
diff -urN Python-2.7.10.ORIG/Objects/obmalloc.c Python-2.7.10/Objects/obmalloc.c
--- Python-2.7.10.ORIG/Objects/obmalloc.c 2015-05-24 01:09:22.000000000 +0900
+++ Python-2.7.10/Objects/obmalloc.c 2015-10-13 17:37:24.665726972 +0900
@@ -18,6 +18,281 @@
#endif
#endif
+/* Python's malloc wrappers (see pymem.h) */
+
+#ifdef PYMALLOC_DEBUG /* WITH_PYMALLOC && PYMALLOC_DEBUG */
+/* Forward declaration */
+static void* _PyMem_DebugMallocCtx(void *ctx, size_t size);
+static void _PyMem_DebugFreeCtx(void *ctx, void *p);
+static void* _PyMem_DebugReallocCtx(void *ctx, void *ptr, size_t size);
+
+static void _PyMem_DebugCheckAddress(char api_id, const void *p);
+#endif
+
+#ifdef WITH_PYMALLOC
+
+#ifdef MS_WINDOWS
+# include <windows.h>
+#elif defined(HAVE_MMAP)
+# include <sys/mman.h>
+# ifdef MAP_ANONYMOUS
+# define ARENAS_USE_MMAP
+# endif
+#endif
+
+/* Forward declaration */
+static void* _PyObject_Malloc(void *ctx, size_t size);
+static void _PyObject_Free(void *ctx, void *p);
+static void* _PyObject_Realloc(void *ctx, void *ptr, size_t size);
+#endif
+
+
+static void *
+_PyMem_RawMalloc(void *ctx, size_t size)
+{
+ /* PyMem_Malloc(0) means malloc(1). Some systems would return NULL
+ for malloc(0), which would be treated as an error. Some platforms would
+ return a pointer with no memory behind it, which would break pymalloc.
+ To solve these problems, allocate an extra byte. */
+ if (size == 0)
+ size = 1;
+ return malloc(size);
+}
+
+static void *
+_PyMem_RawRealloc(void *ctx, void *ptr, size_t size)
+{
+ if (size == 0)
+ size = 1;
+ return realloc(ptr, size);
+}
+
+static void
+_PyMem_RawFree(void *ctx, void *ptr)
+{
+ free(ptr);
+}
+
+#define PYRAW_FUNCS _PyMem_RawMalloc, _PyMem_RawRealloc, _PyMem_RawFree
+#ifdef WITH_PYMALLOC
+#define PYOBJECT_FUNCS _PyObject_Malloc, _PyObject_Realloc, _PyObject_Free
+#else
+#define PYOBJECT_FUNCS PYRAW_FUNCS
+#endif
+
+#ifdef PYMALLOC_DEBUG
+typedef struct {
+ /* We tag each block with an API ID in order to tag API violations */
+ char api_id;
+ PyMemAllocator alloc;
+} debug_alloc_api_t;
+static struct {
+ debug_alloc_api_t raw;
+ debug_alloc_api_t mem;
+ debug_alloc_api_t obj;
+} _PyMem_Debug = {
+ {'r', {NULL, PYRAW_FUNCS}},
+ {'m', {NULL, PYRAW_FUNCS}},
+ {'o', {NULL, PYOBJECT_FUNCS}}
+ };
+
+#define PYDEBUG_FUNCS _PyMem_DebugMallocCtx, _PyMem_DebugReallocCtx, _PyMem_DebugFreeCtx
+#endif
+
+static PyMemAllocator _PyMem_Raw = {
+#ifdef PYMALLOC_DEBUG
+ &_PyMem_Debug.raw, PYDEBUG_FUNCS
+#else
+ NULL, PYRAW_FUNCS
+#endif
+ };
+
+static PyMemAllocator _PyMem = {
+#ifdef PYMALLOC_DEBUG
+ &_PyMem_Debug.mem, PYDEBUG_FUNCS
+#else
+ NULL, PYRAW_FUNCS
+#endif
+ };
+
+static PyMemAllocator _PyObject = {
+#ifdef PYMALLOC_DEBUG
+ &_PyMem_Debug.obj, PYDEBUG_FUNCS
+#else
+ NULL, PYOBJECT_FUNCS
+#endif
+ };
+
+#undef PYRAW_FUNCS
+#undef PYOBJECT_FUNCS
+#undef PYDEBUG_FUNCS
+
+void
+PyMem_SetupDebugHooks(void)
+{
+#ifdef PYMALLOC_DEBUG
+ PyMemAllocator alloc;
+
+ alloc.malloc = _PyMem_DebugMallocCtx;
+ alloc.realloc = _PyMem_DebugReallocCtx;
+ alloc.free = _PyMem_DebugFreeCtx;
+
+ if (_PyMem_Raw.malloc != _PyMem_DebugMallocCtx) {
+ alloc.ctx = &_PyMem_Debug.raw;
+ PyMem_GetAllocator(PYMEM_DOMAIN_RAW, &_PyMem_Debug.raw.alloc);
+ PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &alloc);
+ }
+
+ if (_PyMem.malloc != _PyMem_DebugMallocCtx) {
+ alloc.ctx = &_PyMem_Debug.mem;
+ PyMem_GetAllocator(PYMEM_DOMAIN_MEM, &_PyMem_Debug.mem.alloc);
+ PyMem_SetAllocator(PYMEM_DOMAIN_MEM, &alloc);
+ }
+
+ if (_PyObject.malloc != _PyMem_DebugMallocCtx) {
+ alloc.ctx = &_PyMem_Debug.obj;
+ PyMem_GetAllocator(PYMEM_DOMAIN_OBJ, &_PyMem_Debug.obj.alloc);
+ PyMem_SetAllocator(PYMEM_DOMAIN_OBJ, &alloc);
+ }
+#endif
+}
+
+void
+PyMem_GetAllocator(PyMemAllocatorDomain domain, PyMemAllocator *allocator)
+{
+ switch(domain)
+ {
+ case PYMEM_DOMAIN_RAW: *allocator = _PyMem_Raw; break;
+ case PYMEM_DOMAIN_MEM: *allocator = _PyMem; break;
+ case PYMEM_DOMAIN_OBJ: *allocator = _PyObject; break;
+ default:
+ /* unknown domain */
+ allocator->ctx = NULL;
+ allocator->malloc = NULL;
+ allocator->realloc = NULL;
+ allocator->free = NULL;
+ }
+}
+
+void
+PyMem_SetAllocator(PyMemAllocatorDomain domain, PyMemAllocator *allocator)
+{
+ switch(domain)
+ {
+ case PYMEM_DOMAIN_RAW: _PyMem_Raw = *allocator; break;
+ case PYMEM_DOMAIN_MEM: _PyMem = *allocator; break;
+ case PYMEM_DOMAIN_OBJ: _PyObject = *allocator; break;
+ /* ignore unknown domain */
+ }
+
+}
+
+void *
+PyMem_RawMalloc(size_t size)
+{
+ /*
+ * Limit ourselves to PY_SSIZE_T_MAX bytes to prevent security holes.
+ * Most python internals blindly use a signed Py_ssize_t to track
+ * things without checking for overflows or negatives.
+ * As size_t is unsigned, checking for size < 0 is not required.
+ */
+ if (size > (size_t)PY_SSIZE_T_MAX)
+ return NULL;
+
+ return _PyMem_Raw.malloc(_PyMem_Raw.ctx, size);
+}
+
+void*
+PyMem_RawRealloc(void *ptr, size_t new_size)
+{
+ /* see PyMem_RawMalloc() */
+ if (new_size > (size_t)PY_SSIZE_T_MAX)
+ return NULL;
+ return _PyMem_Raw.realloc(_PyMem_Raw.ctx, ptr, new_size);
+}
+
+void PyMem_RawFree(void *ptr)
+{
+ _PyMem_Raw.free(_PyMem_Raw.ctx, ptr);
+}
+
+void *
+PyMem_Malloc(size_t size)
+{
+ /* see PyMem_RawMalloc() */
+ if (size > (size_t)PY_SSIZE_T_MAX)
+ return NULL;
+ return _PyMem.malloc(_PyMem.ctx, size);
+}
+
+void *
+PyMem_Realloc(void *ptr, size_t new_size)
+{
+ /* see PyMem_RawMalloc() */
+ if (new_size > (size_t)PY_SSIZE_T_MAX)
+ return NULL;
+ return _PyMem.realloc(_PyMem.ctx, ptr, new_size);
+}
+
+void
+PyMem_Free(void *ptr)
+{
+ _PyMem.free(_PyMem.ctx, ptr);
+}
+
+char *
+_PyMem_RawStrdup(const char *str)
+{
+ size_t size;
+ char *copy;
+
+ size = strlen(str) + 1;
+ copy = PyMem_RawMalloc(size);
+ if (copy == NULL)
+ return NULL;
+ memcpy(copy, str, size);
+ return copy;
+}
+
+char *
+_PyMem_Strdup(const char *str)
+{
+ size_t size;
+ char *copy;
+
+ size = strlen(str) + 1;
+ copy = PyMem_Malloc(size);
+ if (copy == NULL)
+ return NULL;
+ memcpy(copy, str, size);
+ return copy;
+}
+
+void *
+PyObject_Malloc(size_t size)
+{
+ /* see PyMem_RawMalloc() */
+ if (size > (size_t)PY_SSIZE_T_MAX)
+ return NULL;
+ return _PyObject.malloc(_PyObject.ctx, size);
+}
+
+void *
+PyObject_Realloc(void *ptr, size_t new_size)
+{
+ /* see PyMem_RawMalloc() */
+ if (new_size > (size_t)PY_SSIZE_T_MAX)
+ return NULL;
+ return _PyObject.realloc(_PyObject.ctx, ptr, new_size);
+}
+
+void
+PyObject_Free(void *ptr)
+{
+ _PyObject.free(_PyObject.ctx, ptr);
+}
+
+
#ifdef WITH_PYMALLOC
#ifdef HAVE_MMAP
@@ -581,7 +856,7 @@
return NULL; /* overflow */
#endif
nbytes = numarenas * sizeof(*arenas);
- arenaobj = (struct arena_object *)realloc(arenas, nbytes);
+ arenaobj = (struct arena_object *)PyMem_Realloc(arenas, nbytes);
if (arenaobj == NULL)
return NULL;
arenas = arenaobj;
@@ -785,9 +1060,8 @@
* Unless the optimizer reorders everything, being too smart...
*/
-#undef PyObject_Malloc
-void *
-PyObject_Malloc(size_t nbytes)
+static void *
+_PyObject_Malloc(void *ctx, size_t nbytes)
{
block *bp;
poolp pool;
@@ -802,15 +1076,6 @@
#endif
/*
- * Limit ourselves to PY_SSIZE_T_MAX bytes to prevent security holes.
- * Most python internals blindly use a signed Py_ssize_t to track
- * things without checking for overflows or negatives.
- * As size_t is unsigned, checking for nbytes < 0 is not required.
- */
- if (nbytes > PY_SSIZE_T_MAX)
- return NULL;
-
- /*
* This implicitly redirects malloc(0).
*/
if ((nbytes - 1) < SMALL_REQUEST_THRESHOLD) {
@@ -983,15 +1248,14 @@
*/
if (nbytes == 0)
nbytes = 1;
- return (void *)malloc(nbytes);
+ return PyMem_Malloc(nbytes);
}
/* free */
-#undef PyObject_Free
ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS
-void
-PyObject_Free(void *p)
+static void
+_PyObject_Free(void *ctx, void *p)
{
poolp pool;
block *lastfree;
@@ -1211,7 +1475,7 @@
redirect:
#endif
/* We didn't allocate this address. */
- free(p);
+ PyMem_Free(p);
}
/* realloc. If p is NULL, this acts like malloc(nbytes). Else if nbytes==0,
@@ -1219,10 +1483,9 @@
* return a non-NULL result.
*/
-#undef PyObject_Realloc
ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS
-void *
-PyObject_Realloc(void *p, size_t nbytes)
+static void *
+_PyObject_Realloc(void *ctx, void *p, size_t nbytes)
{
void *bp;
poolp pool;
@@ -1232,16 +1495,7 @@
#endif
if (p == NULL)
- return PyObject_Malloc(nbytes);
-
- /*
- * Limit ourselves to PY_SSIZE_T_MAX bytes to prevent security holes.
- * Most python internals blindly use a signed Py_ssize_t to track
- * things without checking for overflows or negatives.
- * As size_t is unsigned, checking for nbytes < 0 is not required.
- */
- if (nbytes > PY_SSIZE_T_MAX)
- return NULL;
+ return _PyObject_Malloc(ctx, nbytes);
#ifdef WITH_VALGRIND
/* Treat running_on_valgrind == -1 the same as 0 */
@@ -1269,10 +1523,10 @@
}
size = nbytes;
}
- bp = PyObject_Malloc(nbytes);
+ bp = _PyObject_Malloc(ctx, nbytes);
if (bp != NULL) {
memcpy(bp, p, size);
- PyObject_Free(p);
+ _PyObject_Free(ctx, p);
}
return bp;
}
@@ -1290,40 +1544,17 @@
* at p. Instead we punt: let C continue to manage this block.
*/
if (nbytes)
- return realloc(p, nbytes);
+ return PyMem_Realloc(p, nbytes);
/* C doesn't define the result of realloc(p, 0) (it may or may not
* return NULL then), but Python's docs promise that nbytes==0 never
* returns NULL. We don't pass 0 to realloc(), to avoid that endcase
* to begin with. Even then, we can't be sure that realloc() won't
* return NULL.
*/
- bp = realloc(p, 1);
+ bp = PyMem_Realloc(p, 1);
return bp ? bp : p;
}
-#else /* ! WITH_PYMALLOC */
-
-/*==========================================================================*/
-/* pymalloc not enabled: Redirect the entry points to malloc. These will
- * only be used by extensions that are compiled with pymalloc enabled. */
-
-void *
-PyObject_Malloc(size_t n)
-{
- return PyMem_MALLOC(n);
-}
-
-void *
-PyObject_Realloc(void *p, size_t n)
-{
- return PyMem_REALLOC(p, n);
-}
-
-void
-PyObject_Free(void *p)
-{
- PyMem_FREE(p);
-}
#endif /* WITH_PYMALLOC */
#ifdef PYMALLOC_DEBUG
@@ -1343,10 +1574,6 @@
#define DEADBYTE 0xDB /* dead (newly freed) memory */
#define FORBIDDENBYTE 0xFB /* untouchable bytes at each end of a block */
-/* We tag each block with an API ID in order to tag API violations */
-#define _PYMALLOC_MEM_ID 'm' /* the PyMem_Malloc() API */
-#define _PYMALLOC_OBJ_ID 'o' /* The PyObject_Malloc() API */
-
static size_t serialno = 0; /* incremented on each debug {m,re}alloc */
/* serialno is always incremented via calling this routine. The point is
@@ -1429,58 +1656,18 @@
p[2*S+n: 2*S+n+S]
Copies of FORBIDDENBYTE. Used to catch over- writes and reads.
p[2*S+n+S: 2*S+n+2*S]
- A serial number, incremented by 1 on each call to _PyObject_DebugMalloc
- and _PyObject_DebugRealloc.
+ A serial number, incremented by 1 on each call to _PyMem_DebugMalloc
+ and _PyMem_DebugRealloc.
This is a big-endian size_t.
If "bad memory" is detected later, the serial number gives an
excellent way to set a breakpoint on the next run, to capture the
instant at which this block was passed out.
*/
-/* debug replacements for the PyMem_* memory API */
-void *
-_PyMem_DebugMalloc(size_t nbytes)
-{
- return _PyObject_DebugMallocApi(_PYMALLOC_MEM_ID, nbytes);
-}
-void *
-_PyMem_DebugRealloc(void *p, size_t nbytes)
-{
- return _PyObject_DebugReallocApi(_PYMALLOC_MEM_ID, p, nbytes);
-}
-void
-_PyMem_DebugFree(void *p)
-{
- _PyObject_DebugFreeApi(_PYMALLOC_MEM_ID, p);
-}
-
-/* debug replacements for the PyObject_* memory API */
-void *
-_PyObject_DebugMalloc(size_t nbytes)
-{
- return _PyObject_DebugMallocApi(_PYMALLOC_OBJ_ID, nbytes);
-}
-void *
-_PyObject_DebugRealloc(void *p, size_t nbytes)
-{
- return _PyObject_DebugReallocApi(_PYMALLOC_OBJ_ID, p, nbytes);
-}
-void
-_PyObject_DebugFree(void *p)
-{
- _PyObject_DebugFreeApi(_PYMALLOC_OBJ_ID, p);
-}
-void
-_PyObject_DebugCheckAddress(const void *p)
-{
- _PyObject_DebugCheckAddressApi(_PYMALLOC_OBJ_ID, p);
-}
-
-
-/* generic debug memory api, with an "id" to identify the API in use */
-void *
-_PyObject_DebugMallocApi(char id, size_t nbytes)
+static void *
+_PyMem_DebugMallocCtx(void *ctx, size_t nbytes)
{
+ debug_alloc_api_t *api = (debug_alloc_api_t *)ctx;
uchar *p; /* base address of malloc'ed block */
uchar *tail; /* p + 2*SST + nbytes == pointer to tail pad bytes */
size_t total; /* nbytes + 4*SST */
@@ -1491,14 +1678,14 @@
/* overflow: can't represent total as a size_t */
return NULL;
- p = (uchar *)PyObject_Malloc(total);
+ p = (uchar *)api->alloc.malloc(api->alloc.ctx, total);
if (p == NULL)
return NULL;
/* at p, write size (SST bytes), id (1 byte), pad (SST-1 bytes) */
write_size_t(p, nbytes);
- p[SST] = (uchar)id;
- memset(p + SST + 1 , FORBIDDENBYTE, SST-1);
+ p[SST] = (uchar)api->api_id;
+ memset(p + SST + 1, FORBIDDENBYTE, SST-1);
if (nbytes > 0)
memset(p + 2*SST, CLEANBYTE, nbytes);
@@ -1516,35 +1703,37 @@
Then fills the original bytes with DEADBYTE.
Then calls the underlying free.
*/
-void
-_PyObject_DebugFreeApi(char api, void *p)
+static void
+_PyMem_DebugFreeCtx(void *ctx, void *p)
{
+ debug_alloc_api_t *api = (debug_alloc_api_t *)ctx;
uchar *q = (uchar *)p - 2*SST; /* address returned from malloc */
size_t nbytes;
if (p == NULL)
return;
- _PyObject_DebugCheckAddressApi(api, p);
+ _PyMem_DebugCheckAddress(api->api_id, p);
nbytes = read_size_t(q);
nbytes += 4*SST;
if (nbytes > 0)
memset(q, DEADBYTE, nbytes);
- PyObject_Free(q);
+ api->alloc.free(api->alloc.ctx, q);
}
-void *
-_PyObject_DebugReallocApi(char api, void *p, size_t nbytes)
+static void *
+_PyMem_DebugReallocCtx(void *ctx, void *p, size_t nbytes)
{
- uchar *q = (uchar *)p;
+ debug_alloc_api_t *api = (debug_alloc_api_t *)ctx;
+ uchar *q = (uchar *)p, *oldq;
uchar *tail;
size_t total; /* nbytes + 4*SST */
size_t original_nbytes;
int i;
if (p == NULL)
- return _PyObject_DebugMallocApi(api, nbytes);
+ return _PyMem_DebugMallocCtx(ctx, nbytes);
- _PyObject_DebugCheckAddressApi(api, p);
+ _PyMem_DebugCheckAddress(api->api_id, p);
bumpserialno();
original_nbytes = read_size_t(q - 2*SST);
total = nbytes + 4*SST;
@@ -1552,24 +1741,26 @@
/* overflow: can't represent total as a size_t */
return NULL;
- if (nbytes < original_nbytes) {
- /* shrinking: mark old extra memory dead */
- memset(q + nbytes, DEADBYTE, original_nbytes - nbytes + 2*SST);
- }
-
/* Resize and add decorations. We may get a new pointer here, in which
* case we didn't get the chance to mark the old memory with DEADBYTE,
* but we live with that.
*/
- q = (uchar *)PyObject_Realloc(q - 2*SST, total);
+ oldq = q;
+ q = (uchar *)api->alloc.realloc(api->alloc.ctx, q - 2*SST, total);
if (q == NULL)
return NULL;
+ if (q == oldq && nbytes < original_nbytes) {
+ /* shrinking: mark old extra memory dead */
+ memset(q + nbytes, DEADBYTE, original_nbytes - nbytes);
+ }
+
write_size_t(q, nbytes);
- assert(q[SST] == (uchar)api);
+ assert(q[SST] == (uchar)api->api_id);
for (i = 1; i < SST; ++i)
assert(q[SST + i] == FORBIDDENBYTE);
q += 2*SST;
+
tail = q + nbytes;
memset(tail, FORBIDDENBYTE, SST);
write_size_t(tail + SST, serialno);
@@ -1588,8 +1779,8 @@
* and call Py_FatalError to kill the program.
* The API id, is also checked.
*/
- void
-_PyObject_DebugCheckAddressApi(char api, const void *p)
+static void
+_PyMem_DebugCheckAddress(char api, const void *p)
{
const uchar *q = (const uchar *)p;
char msgbuf[64];
@@ -1935,3 +2126,44 @@
arenas[arenaindex_temp].address != 0;
}
#endif
+
+
+#if defined(WITH_PYMALLOC) && defined(PYMALLOC_DEBUG)
+/* Dummy functions only present to keep the same ABI with the vanilla Python
+ compiled in debug mode: they are not used in practice. See issue:
+ https://github.com/haypo/pytracemalloc/issues/1 */
+
+void* _PyMem_DebugMalloc(size_t nbytes)
+{ return PyMem_RawMalloc(nbytes); }
+
+void* _PyMem_DebugRealloc(void *p, size_t nbytes)
+{ return PyMem_RawRealloc(p, nbytes); }
+
+void _PyObject_DebugFree(void *p)
+{ return PyObject_Free(p); }
+
+void* _PyObject_DebugMalloc(size_t nbytes)
+{ return PyObject_Malloc(nbytes); }
+
+void* _PyObject_DebugRealloc(void *p, size_t nbytes)
+{ return PyObject_Realloc(p, nbytes); }
+
+void _PyMem_DebugFree(void *p)
+{ PyMem_RawFree(p); }
+
+void _PyObject_DebugCheckAddress(const void *p)
+{}
+
+void * _PyObject_DebugMallocApi(char api, size_t nbytes)
+{ return PyObject_Malloc(nbytes); }
+
+void * _PyObject_DebugReallocApi(char api, void *p, size_t nbytes)
+{ return PyObject_Realloc(p, nbytes); }
+
+void _PyObject_DebugFreeApi(char api, void *p)
+{ return PyObject_Free(p); }
+
+void _PyObject_DebugCheckAddressApi(char api, const void *p)
+{}
+#endif
+
diff -urN Python-2.7.10.ORIG/Python/pythonrun.c Python-2.7.10/Python/pythonrun.c
--- Python-2.7.10.ORIG/Python/pythonrun.c 2015-05-24 01:09:24.000000000 +0900
+++ Python-2.7.10/Python/pythonrun.c 2015-10-13 17:31:13.771317208 +0900
@@ -137,6 +137,41 @@
return flag;
}
+static void
+inittracemalloc(void)
+{
+ PyObject *mod = NULL, *res = NULL;
+ char *p, *endptr;
+ long nframe;
+
+ p = Py_GETENV("PYTHONTRACEMALLOC");
+ if (p == NULL || *p == '\0')
+ return;
+
+ endptr = p;
+ nframe = strtol(p, &endptr, 10);
+ if (*endptr != '\0' || nframe < 1 || nframe > 100000)
+ Py_FatalError("PYTHONTRACEMALLOC: invalid number of frames");
+
+ mod = PyImport_ImportModule("_tracemalloc");
+ if (mod == NULL)
+ goto error;
+
+ res = PyObject_CallMethod(mod, "start", "i", (int)nframe);
+ if (res == NULL)
+ goto error;
+
+ goto done;
+
+error:
+ fprintf(stderr, "failed to start tracemalloc:\n");
+ PyErr_Print();
+
+done:
+ Py_XDECREF(mod);
+ Py_XDECREF(res);
+}
+
void
Py_InitializeEx(int install_sigs)
{
@@ -266,6 +301,8 @@
_PyGILState_Init(interp, tstate);
#endif /* WITH_THREAD */
+ inittracemalloc();
+
if (!Py_NoSiteFlag)
initsite(); /* Module site */
stack/erp5/buildout.cfg
View file @ 2a3e2937
......@@ -504,6 +504,7 @@ eggs =
jsonschema
# Needed for checking ZODB Components source code
pylint
pytracemalloc
neoppod[client]
# Zope
......@@ -685,6 +686,7 @@ pyflakes = 1.0.0
pylint = 1.4.4
python-magic = 0.4.6
python-memcached = 1.57
pytracemalloc = 1.2
qrcode = 5.1
restkit = 4.2.2
rtjp-eventlet = 0.3.2
......
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