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glibc-rh615090.patch
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File glibc-rh615090.patch of Package glibc
2010-07-27 Andreas Schwab <schwab@redhat.com> * manual/memory.texi (Malloc Tunable Parameters): Document M_PERTURB. Index: glibc-2.12-2-gc4ccff1/manual/memory.texi =================================================================== --- glibc-2.12-2-gc4ccff1.orig/manual/memory.texi +++ glibc-2.12-2-gc4ccff1/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 values depending on some +low order bits of 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
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