Port --enable-checking=all to Fedora 14 x86.

* alloc.c (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
Move to lisp.h.
(xmalloc_put_size, xmalloc_get_size, overrun_check_malloc)
(overrun_check_realloc, overrun_check_free):
Use XMALLOC_OVERRUN_SIZE_SIZE, not sizeof (size_t).
That way, xmalloc returns a properly-aligned pointer even if
XMALLOC_OVERRUN_CHECK is defined.  The old debugging code happened
to align OK on typical 64-bit hosts, but not on Fedora 14 x86.
* charset.c (syms_of_charset): Take XMALLOC_OVERRUN_CHECK_OVERHEAD
into account when calculating the initial malloc maximum.
* lisp.h (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
Move here from alloc.c, so that charset.c can use it too.
Properly align; the old code wasn't right for common 32-bit hosts
when configured with --enable-checking=all.
(XMALLOC_BASE_ALIGNMENT, COMMON_MULTIPLE, XMALLOC_HEADER_ALIGNMENT)
(XMALLOC_OVERRUN_SIZE_SIZE): New macros.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index dcbeffac1b4..d6e5390c84f 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,23 @@
+2011-09-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Port --enable-checking=all to Fedora 14 x86.
+        * alloc.c (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
+        Move to lisp.h.
+        (xmalloc_put_size, xmalloc_get_size, overrun_check_malloc)
+        (overrun_check_realloc, overrun_check_free):
+        Use XMALLOC_OVERRUN_SIZE_SIZE, not sizeof (size_t).
+        That way, xmalloc returns a properly-aligned pointer even if
+        XMALLOC_OVERRUN_CHECK is defined.  The old debugging code happened
+        to align OK on typical 64-bit hosts, but not on Fedora 14 x86.
+        * charset.c (syms_of_charset): Take XMALLOC_OVERRUN_CHECK_OVERHEAD
+        into account when calculating the initial malloc maximum.
+        * lisp.h (XMALLOC_OVERRUN_CHECK_OVERHEAD, XMALLOC_OVERRUN_CHECK_SIZE):
+        Move here from alloc.c, so that charset.c can use it too.
+        Properly align; the old code wasn't right for common 32-bit hosts
+        when configured with --enable-checking=all.
+        (XMALLOC_BASE_ALIGNMENT, COMMON_MULTIPLE, XMALLOC_HEADER_ALIGNMENT)
+        (XMALLOC_OVERRUN_SIZE_SIZE): New macros.
+
 2011-09-29  Eli Zaretskii  <eliz@gnu.org>
 
         * sysdep.c (snprintf) [EOVERFLOW]: If EOVERFLOW is not defined,