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locks; strict;
comment	@# @;


1.2
date	2017.09.29.12.40.29;	author wiz;	state dead;
branches;
next	1.1;
commitid	ZRYX7Ib64A6cG59A;

1.1
date	2012.01.09.06.30.20;	author skrll;	state Exp;
branches;
next	;


desc
@@


1.2
log
@emacs22*, emacs23*, emacs24*: remove unmaintained emacs versions

As announced in
https://mail-index.netbsd.org/pkgsrc-users/2017/09/11/msg025563.html

This still leaves emacs20, emacs21, and the current version, emacs25.
@
text
@$NetBSD: patch-src_alloc_c,v 1.1 2012/01/09 06:30:20 skrll Exp $

- use standard headers
- add an empty asm() destroying memory that prevents gcc from
  optimizing out __malloc_hook and friends (which leads to
  SIGSEGV in temacs during build)

--- src/alloc.c.orig	2008-08-12 18:35:44.000000000 +0000
+++ src/alloc.c	2012-01-05 08:36:58.000000000 +0000
@@@@ -84,6 +84,8 @@@@
 #include "w32.h"
 #endif
 
+#include <stdlib.h>
+
 #ifdef DOUG_LEA_MALLOC
 
 #include <malloc.h>
@@@@ -1205,6 +1207,9 @@@@
 #endif /* GC_MALLOC_CHECK */
 
   __free_hook = old_free_hook;
+#ifdef __GNUC__
+  __asm __volatile("":::"memory");
+#endif
   free (ptr);
 
   /* If we released our reserve (due to running out of memory),
@@@@ -1236,6 +1241,9 @@@@
 
   BLOCK_INPUT_ALLOC;
   __malloc_hook = old_malloc_hook;
+#ifdef __GNUC__
+  __asm __volatile("":::"memory");
+#endif
 #ifdef DOUG_LEA_MALLOC
     mallopt (M_TOP_PAD, malloc_hysteresis * 4096);
 #else
@@@@ -1285,6 +1293,9 @@@@
 
   BLOCK_INPUT_ALLOC;
   __realloc_hook = old_realloc_hook;
+#ifdef __GNUC__
+  __asm __volatile("":::"memory");
+#endif
 
 #ifdef GC_MALLOC_CHECK
   if (ptr)
@


1.1
log
@Merge patch from other emacs packages - prevent from optimizing out
__malloc_hook) to fix one source of SIGSEGVs during build.

PR/45405 PR/35235
@
text
@d1 1
a1 1
$NetBSD: patch-src_alloc_c,v 1.1 2011/12/31 11:40:27 dholland Exp $
@