mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-07-07 19:35:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

gh-129185: Remove internal TRACE_RAW_MALLOC macro (#129218)

Browse source 
Always build tracemalloc with PyMem_RawMalloc() hooks.
This commit is contained in:
Victor Stinner 2025-01-23 13:49:35 +01:00 • committed by GitHub
parent 46c7e13c05
commit e579cdb21e
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 3 additions and 51 deletions
Download patch file Download diff file Expand all files Collapse all files

6
Include/internal/pycore_tracemalloc.h
View file

@ -11,10 +11,6 @@ extern "C" {
#include "pycore_hashtable.h" // _Py_hashtable_t
/* Trace memory blocks allocated by PyMem_RawMalloc() */
#define TRACE_RAW_MALLOC
struct _PyTraceMalloc_Config {
/* Module initialized?
Variable protected by the GIL */
@ -74,9 +70,7 @@ struct _tracemalloc_runtime_state {
PyMemAllocatorEx obj;
} allocators;
#if defined(TRACE_RAW_MALLOC)
PyThread_type_lock tables_lock;
#endif
/* Size in bytes of currently traced memory.
Protected by TABLES_LOCK(). */
size_t traced_memory;

48
Python/tracemalloc.c
View file

@ -33,18 +33,12 @@ static int _PyTraceMalloc_TraceRef(PyObject *op, PyRefTracerEvent event,
#define allocators _PyRuntime.tracemalloc.allocators
#if defined(TRACE_RAW_MALLOC)
/* This lock is needed because tracemalloc_free() is called without
the GIL held from PyMem_RawFree(). It cannot acquire the lock because it
would introduce a deadlock in _PyThreadState_DeleteCurrent(). */
# define tables_lock _PyRuntime.tracemalloc.tables_lock
# define TABLES_LOCK() PyThread_acquire_lock(tables_lock, 1)
# define TABLES_UNLOCK() PyThread_release_lock(tables_lock)
#else
/* variables are protected by the GIL */
# define TABLES_LOCK()
# define TABLES_UNLOCK()
#endif
#define tables_lock _PyRuntime.tracemalloc.tables_lock
#define TABLES_LOCK() PyThread_acquire_lock(tables_lock, 1)
#define TABLES_UNLOCK() PyThread_release_lock(tables_lock)
#define DEFAULT_DOMAIN 0
@ -98,9 +92,6 @@ tracemalloc_error(const char *format, ...)
#endif
#if defined(TRACE_RAW_MALLOC)
#define REENTRANT_THREADLOCAL
#define tracemalloc_reentrant_key _PyRuntime.tracemalloc.reentrant_key
/* Any non-NULL pointer can be used */
@ -137,25 +128,6 @@ set_reentrant(int reentrant)
}
}
#else
/* TRACE_RAW_MALLOC not defined: variable protected by the GIL */
static int tracemalloc_reentrant = 0;
static int
get_reentrant(void)
{
return tracemalloc_reentrant;
}
static void
set_reentrant(int reentrant)
{
assert(reentrant != tracemalloc_reentrant);
tracemalloc_reentrant = reentrant;
}
#endif
static Py_uhash_t
hashtable_hash_pyobject(const void *key)
@ -709,7 +681,6 @@ tracemalloc_realloc_gil(void *ctx, void *ptr, size_t new_size)
}
#ifdef TRACE_RAW_MALLOC
static void*
tracemalloc_raw_malloc(void *ctx, size_t size)
{
@ -729,7 +700,6 @@ tracemalloc_raw_realloc(void *ctx, void *ptr, size_t new_size)
{
return tracemalloc_realloc(1, ctx, ptr, new_size);
}
#endif /* TRACE_RAW_MALLOC */
static void
@ -767,20 +737,16 @@ _PyTraceMalloc_Init(void)
PyMem_GetAllocator(PYMEM_DOMAIN_RAW, &allocators.raw);
#ifdef REENTRANT_THREADLOCAL
if (PyThread_tss_create(&tracemalloc_reentrant_key) != 0) {
return _PyStatus_NO_MEMORY();
}
#endif
#if defined(TRACE_RAW_MALLOC)
if (tables_lock == NULL) {
tables_lock = PyThread_allocate_lock();
if (tables_lock == NULL) {
return _PyStatus_NO_MEMORY();
}
}
#endif
tracemalloc_filenames = hashtable_new(hashtable_hash_pyobject,
hashtable_compare_unicode,
@ -826,16 +792,12 @@ tracemalloc_deinit(void)
_Py_hashtable_destroy(tracemalloc_tracebacks);
_Py_hashtable_destroy(tracemalloc_filenames);
#if defined(TRACE_RAW_MALLOC)
if (tables_lock != NULL) {
PyThread_free_lock(tables_lock);
tables_lock = NULL;
}
#endif
#ifdef REENTRANT_THREADLOCAL
PyThread_tss_delete(&tracemalloc_reentrant_key);
#endif
}
@ -866,7 +828,6 @@ _PyTraceMalloc_Start(int max_nframe)
}
PyMemAllocatorEx alloc;
#ifdef TRACE_RAW_MALLOC
alloc.malloc = tracemalloc_raw_malloc;
alloc.calloc = tracemalloc_raw_calloc;
alloc.realloc = tracemalloc_raw_realloc;
@ -875,7 +836,6 @@ _PyTraceMalloc_Start(int max_nframe)
alloc.ctx = &allocators.raw;
PyMem_GetAllocator(PYMEM_DOMAIN_RAW, &allocators.raw);
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &alloc);
#endif
alloc.malloc = tracemalloc_malloc_gil;
alloc.calloc = tracemalloc_calloc_gil;
@ -916,9 +876,7 @@ _PyTraceMalloc_Stop(void)
tracemalloc_config.tracing = 0;
/* unregister the hook on memory allocators */
#ifdef TRACE_RAW_MALLOC
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &allocators.raw);
#endif
PyMem_SetAllocator(PYMEM_DOMAIN_MEM, &allocators.mem);
PyMem_SetAllocator(PYMEM_DOMAIN_OBJ, &allocators.obj);