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From d2f33b7005540aef5ce79479d598cdcc10d397f9 Mon Sep 17 00:00:00 2001
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From: "Barton E. Schaefer" <schaefer@zsh.org>
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Date: Thu, 24 Jul 2014 08:45:16 -0700
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Subject: [PATCH] 32853: redefine VARARR() to use heap rather than stack
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allocation
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Upstream-commit: 2f0efe9f592255d0d83c0929423cc397bb1ebfa4
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Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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---
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Src/mem.c | 5 ++++-
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Src/zsh_system.h | 5 +++++
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2 files changed, 9 insertions(+), 1 deletion(-)
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diff --git a/Src/mem.c b/Src/mem.c
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index 5275c6c..c4745a5 100644
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--- a/Src/mem.c
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+++ b/Src/mem.c
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@@ -856,7 +856,10 @@ zrealloc(void *ptr, size_t size)
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ptr = NULL;
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} else {
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/* If ptr is NULL, then behave like malloc */
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- ptr = malloc(size);
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+ if (!(ptr = (void *) malloc(size))) {
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+ zerr("fatal error: out of memory");
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+ exit(1);
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+ }
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}
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unqueue_signals();
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diff --git a/Src/zsh_system.h b/Src/zsh_system.h
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index f385330..427c25f 100644
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--- a/Src/zsh_system.h
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+++ b/Src/zsh_system.h
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@@ -286,11 +286,16 @@ struct timezone {
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# include <limits.h>
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#endif
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+#ifdef USE_STACK_ALLOCATION
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+#warning compiling with USE_STACK_ALLOCATION
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#ifdef HAVE_VARIABLE_LENGTH_ARRAYS
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# define VARARR(X,Y,Z) X (Y)[Z]
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#else
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# define VARARR(X,Y,Z) X *(Y) = (X *) alloca(sizeof(X) * (Z))
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#endif
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+#else
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+# define VARARR(X,Y,Z) X *(Y) = (X *) zhalloc(sizeof(X) * (Z))
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+#endif
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/* we should handle unlimited sizes from pathconf(_PC_PATH_MAX) */
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/* but this is too much trouble */
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--
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2.1.0
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