48 lines
1.1 KiB
Text
48 lines
1.1 KiB
Text
$NetBSD: patch-src_alloc_c,v 1.1 2012/01/09 06:30:20 skrll Exp $
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- use standard headers
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- add an empty asm() destroying memory that prevents gcc from
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optimizing out __malloc_hook and friends (which leads to
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SIGSEGV in temacs during build)
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--- src/alloc.c.orig 2008-08-12 18:35:44.000000000 +0000
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+++ src/alloc.c 2012-01-05 08:36:58.000000000 +0000
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@@ -84,6 +84,8 @@
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#include "w32.h"
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#endif
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+#include <stdlib.h>
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+
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#ifdef DOUG_LEA_MALLOC
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#include <malloc.h>
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@@ -1205,6 +1207,9 @@
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#endif /* GC_MALLOC_CHECK */
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__free_hook = old_free_hook;
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+#ifdef __GNUC__
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+ __asm __volatile("":::"memory");
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+#endif
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free (ptr);
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/* If we released our reserve (due to running out of memory),
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@@ -1236,6 +1241,9 @@
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BLOCK_INPUT_ALLOC;
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__malloc_hook = old_malloc_hook;
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+#ifdef __GNUC__
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+ __asm __volatile("":::"memory");
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+#endif
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#ifdef DOUG_LEA_MALLOC
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mallopt (M_TOP_PAD, malloc_hysteresis * 4096);
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#else
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@@ -1285,6 +1293,9 @@
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BLOCK_INPUT_ALLOC;
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__realloc_hook = old_realloc_hook;
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+#ifdef __GNUC__
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+ __asm __volatile("":::"memory");
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+#endif
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#ifdef GC_MALLOC_CHECK
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if (ptr)
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