From: Tim Peters <tim.peters@gmail.com>
Date: Mon, 22 Apr 2002 02:33:27 +0000 (+0000)
Subject: Moving pymalloc along.
X-Git-Tag: v2.3c1~5845
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=51e7f5cabaef2ed6e36412ce933061cfc89a766d;p=python

Moving pymalloc along.

+ Redirect PyMem_{Del, DEL} to the object allocator's free() when
  pymalloc is enabled.  Needed so old extensions can continue to
  mix PyObject_New with PyMem_DEL.

+ This implies that pgen needs to be able to see the PyObject_XYZ
  declarations too.  pgenheaders.h now includes Python.h.  An
  implication is that I expect obmalloc.o needs to get linked into
  pgen on non-Windows boxes.

+ When PYMALLOC_DEBUG is defined, *all* Py memory API functions
  now funnel through the debug allocator wrapper around pymalloc.
  This is the default in a debug build.

+ That caused compile.c to fail:  it indirectly mixed PyMem_Malloc
  with raw platform free() in one place.  This is verbotten.
---

diff --git a/Include/pgenheaders.h b/Include/pgenheaders.h
index 051173cc5e..fecfcc1db5 100644
--- a/Include/pgenheaders.h
+++ b/Include/pgenheaders.h
@@ -7,23 +7,7 @@ extern "C" {
 
 /* Include files and extern declarations used by most of the parser. */
 
-#include "pyconfig.h"
-
-/* pyconfig.h may or may not define DL_IMPORT */
-#ifndef DL_IMPORT	/* declarations for DLL import/export */
-#define DL_IMPORT(RTYPE) RTYPE
-#endif
-
-#include <stdio.h>
-#include <string.h>
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#include "pymem.h"
-
-#include "pydebug.h"
+#include "Python.h"
 
 DL_IMPORT(void) PySys_WriteStdout(const char *format, ...)
 			__attribute__((format(printf, 1, 2)));
diff --git a/Include/pymem.h b/Include/pymem.h
index 3b9c0e2988..2330366f48 100644
--- a/Include/pymem.h
+++ b/Include/pymem.h
@@ -52,13 +52,19 @@ extern DL_IMPORT(void) PyMem_Free(void *);
    no longer supported. They used to call PyErr_NoMemory() on failure. */
 
 /* Macros. */
-#ifndef PyMem_MALLOC
+#ifdef PYMALLOC_DEBUG
+/* Redirect all memory operations to Python's debugging allocator. */
+#define PyMem_MALLOC		PyObject_MALLOC
+#define PyMem_REALLOC		PyObject_REALLOC
+#define PyMem_FREE		PyObject_FREE
+
+#else	/* ! PYMALLOC_DEBUG */
+
 #ifdef MALLOC_ZERO_RETURNS_NULL
 #define PyMem_MALLOC(n)         malloc((n) ? (n) : 1)
 #else
 #define PyMem_MALLOC		malloc
 #endif
-
 /* Caution:  whether MALLOC_ZERO_RETURNS_NULL is #defined has nothing to
    do with whether platform realloc(non-NULL, 0) normally frees the memory
    or returns NULL.  Rather than introduce yet another config variation,
@@ -66,7 +72,7 @@ extern DL_IMPORT(void) PyMem_Free(void *);
 #define PyMem_REALLOC(p, n)     realloc((p), (n) ? (n) : 1)
 
 #define PyMem_FREE           	free
-#endif	/* PyMem_MALLOC */
+#endif	/* PYMALLOC_DEBUG */
 
 /*
  * Type-oriented memory interface
@@ -85,12 +91,7 @@ extern DL_IMPORT(void) PyMem_Free(void *);
 /* In order to avoid breaking old code mixing PyObject_{New, NEW} with
    PyMem_{Del, DEL} (there was no choice about this in 1.5.2), the latter
    have to be redirected to the object allocator. */
-/* XXX The parser module needs rework before this can be enabled. */
-#if 0
 #define PyMem_Del  PyObject_Free
-#else
-#define PyMem_Del  PyMem_Free
-#endif
 
 /* Macros */
 #define PyMem_NEW(type, n) \
@@ -98,12 +99,7 @@ extern DL_IMPORT(void) PyMem_Free(void *);
 #define PyMem_RESIZE(p, type, n) \
 	( (p) = (type *) PyMem_REALLOC((p), (n) * sizeof(type)) )
 
-/* XXX The parser module needs rework before this can be enabled. */
-#if 0
 #define PyMem_DEL PyObject_FREE
-#else
-#define PyMem_DEL  PyMem_FREE
-#endif
 
 #ifdef __cplusplus
 }
diff --git a/Python/compile.c b/Python/compile.c
index 4340522fd8..373363fb68 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -1954,7 +1954,7 @@ com_factor(struct compiling *c, node *n)
 			return;
 		}
 		if (childtype == MINUS) {
-			char *s = malloc(strlen(STR(pnum)) + 2);
+			char *s = PyMem_Malloc(strlen(STR(pnum)) + 2);
 			if (s == NULL) {
 				com_error(c, PyExc_MemoryError, "");
 				com_addbyte(c, 255);
@@ -1962,7 +1962,7 @@ com_factor(struct compiling *c, node *n)
 			}
 			s[0] = '-';
 			strcpy(s + 1, STR(pnum));
-			free(STR(pnum));
+			PyMem_Free(STR(pnum));
 			STR(pnum) = s;
 		}
 		com_atom(c, patom);