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[PATCH] Document M_PERTURB


2010-07-26  Andreas Schwab  <schwab@redhat.com>

	* manual/memory.texi (Malloc Tunable Parameters): Document
	M_PERTURB.

diff --git a/manual/memory.texi b/manual/memory.texi
index 59ea1ee..6ae408d 100644
--- a/manual/memory.texi
+++ b/manual/memory.texi
@@ -702,6 +702,11 @@ be allocated via @code{mmap}.
 @item M_MMAP_MAX
 The maximum number of chunks to allocate with @code{mmap}.  Setting this
 to zero disables all use of @code{mmap}.
+@item M_PERTURB
+If non-zero, memory blocks are filled with a value depending on
+this parameter when they are allocated (except when allocated by
+@code{calloc}) and freed.  This can be used to debug the use of
+uninitialized or freed heap memory.
 @end table
 
 @end deftypefun
-- 
1.7.1.1


-- 
Andreas Schwab, schwab@redhat.com
GPG Key fingerprint = D4E8 DBE3 3813 BB5D FA84  5EC7 45C6 250E 6F00 984E
"And now for something completely different."


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