From 2f0efe9f592255d0d83c0929423cc397bb1ebfa4 Mon Sep 17 00:00:00 2001
From: "Barton E. Schaefer" <schaefer@zsh.org>
Date: Thu, 24 Jul 2014 08:45:16 -0700
Subject: 32853: redefine VARARR() to use heap rather than stack allocation

enable old behavior via "configure --with-stack-allocation"
---
 Src/mem.c        | 5 ++++-
 Src/zsh_system.h | 4 ++++
 2 files changed, 8 insertions(+), 1 deletion(-)

(limited to 'Src')

diff --git a/Src/mem.c b/Src/mem.c
index a8f0c37ce..7e0667a33 100644
--- a/Src/mem.c
+++ b/Src/mem.c
@@ -950,7 +950,10 @@ zrealloc(void *ptr, size_t size)
 	ptr = NULL;
     } else {
 	/* If ptr is NULL, then behave like malloc */
-	ptr = malloc(size);
+        if (!(ptr = (void *) malloc(size))) {
+            zerr("fatal error: out of memory");
+            exit(1);
+        }
     }
     unqueue_signals();
 
diff --git a/Src/zsh_system.h b/Src/zsh_system.h
index 601de69f6..811340d42 100644
--- a/Src/zsh_system.h
+++ b/Src/zsh_system.h
@@ -286,11 +286,15 @@ struct timezone {
 # include <limits.h>
 #endif
 
+#ifdef USE_STACK_ALLOCATION
 #ifdef HAVE_VARIABLE_LENGTH_ARRAYS
 # define VARARR(X,Y,Z)	X (Y)[Z]
 #else
 # define VARARR(X,Y,Z)	X *(Y) = (X *) alloca(sizeof(X) * (Z))
 #endif
+#else
+# define VARARR(X,Y,Z)	X *(Y) = (X *) zhalloc(sizeof(X) * (Z))
+#endif
 
 /* we should handle unlimited sizes from pathconf(_PC_PATH_MAX) */
 /* but this is too much trouble                                 */
-- 
cgit 1.4.1