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bug#8437: Emacs crash when building with --enable-checking on Mac OS X


From: Ben Key
Subject: bug#8437: Emacs crash when building with --enable-checking on Mac OS X
Date: Tue, 12 Apr 2011 01:17:10 -0500

Hello,

I have made an attempt to track down the cause of this bug.

After
  bzr revert -r 103045
Emacs builds when I configure it with
  ./configure --enable-checking=xmallocoverrun --with-ns CFLAGS='-g3 -O0'

After
  bzr revert -r 103046
the error "temacs(74585,0x7fff70e01ca0) malloc: *** error for object 0x100768010: Non-aligned pointer being freed (2)" occurs during the call to "`/bin/pwd`/temacs --batch --load loadup bootstrap."

The changes made in revision 103046 are as follows:

=== modified file 'src/ChangeLog'
--- src/ChangeLog    2011-01-30 23:34:18 +0000
+++ src/ChangeLog    2011-01-31 07:34:45 +0000
@@ -1,3 +1,8 @@
+2011-01-31  Jim Meyering  <address@hidden>
+
+    * charset.c (load_charset_map): Don't deref NULL on failed malloc.
+    Use xmalloc rather than malloc.
+
 2011-01-30  Paul Eggert  <address@hidden>
 
     strftime: import from gnulib

=== modified file 'src/charset.c'
--- src/charset.c    2011-01-25 04:08:28 +0000
+++ src/charset.c    2011-01-31 07:34:45 +0000
@@ -292,7 +292,7 @@
       else
     {
       if (! temp_charset_work)
-        temp_charset_work = malloc (sizeof (*temp_charset_work));
+        temp_charset_work = xmalloc (sizeof (*temp_charset_work));
       if (control_flag == 1)
         {
           memset (temp_charset_work->table.decoder, -1,



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