Issue #15893: frozenmain.c now handles PyMem_Malloc() failure

Modules/python.c

@@ -18,11 +18,19 @@ wmain(int argc, wchar_t **argv)
 int
 main(int argc, char **argv)
 {
-    wchar_t **argv_copy = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*(argc+1));
+    wchar_t **argv_copy;
     /* We need a second copy, as Python might modify the first one. */
-    wchar_t **argv_copy2 = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*(argc+1));
+    wchar_t **argv_copy2;
     int i, res;
     char *oldloc;
+
+    argv_copy = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*(argc+1));
+    argv_copy2 = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*(argc+1));
+    if (!argv_copy || !argv_copy2) {
+        fprintf(stderr, "out of memory\n");
+        return 1;
+    }
+
     /* 754 requires that FP exceptions run in "no stop" mode by default,
      * and until C vendors implement C99's ways to control FP exceptions,
      * Python requires non-stop mode.  Alas, some platforms enable FP
@@ -34,10 +42,6 @@ main(int argc, char **argv)
     m = fpgetmask();
     fpsetmask(m & ~FP_X_OFL);
 #endif
-    if (!argv_copy || !argv_copy2) {
-        fprintf(stderr, "out of memory\n");
-        return 1;
-    }
     oldloc = strdup(setlocale(LC_ALL, NULL));
     setlocale(LC_ALL, "");
     for (i = 0; i < argc; i++) {

Python/frozenmain.c

@@ -20,9 +20,16 @@ Py_FrozenMain(int argc, char **argv)
     int inspect = 0;
     int unbuffered = 0;
     char *oldloc;
-    wchar_t **argv_copy = PyMem_Malloc(sizeof(wchar_t*)*argc);
+    wchar_t **argv_copy;
     /* We need a second copies, as Python might modify the first one. */
-    wchar_t **argv_copy2 = PyMem_Malloc(sizeof(wchar_t*)*argc);
+    wchar_t **argv_copy2;
+
+    argv_copy = PyMem_Malloc(sizeof(wchar_t*)*argc);
+    argv_copy2 = PyMem_Malloc(sizeof(wchar_t*)*argc);
+    if (!argv_copy || !argv_copy2) {
+        fprintf(stderr, "out of memory\n");
+        return 1;
+    }
 
     Py_FrozenFlag = 1; /* Suppress errors from getpath.c */