Bug#53593: Add some instrumentation to improve Valgrind sensitivity

BUILD/*: Add valgrind_configs=--with-valgrind.
BUILD/*: Remove -USAFEMALLOC from valgrind_flags.

configure.in: Add AC_ARG_WITH(valgrind) and HAVE_VALGRIND.

include/my_sys.h: Define a number of MEM_ wrappers for VALGRIND_ functions.
include/my_sys.h: Make TRASH do MEM_UNDEFINED().

include/m_string.h: Remove unused macro bzero_if_purify(A,B).

_mymalloc(): Declare MEM_UNDEFINED() on the allocated memory.

_myfree(): Declare MEM_NOACCESS() on the freed memory.

storage/innobase/include/univ.i: Enable UNIV_DEBUG_VALGRIND based on
HAVE_VALGRIND rather than HAVE_purify.

Possible things to do:
 * In my_global.h, remove the defined(HAVE_purify) condition
   from the _WIN32 uint3korr().
 * In my_global.h *int*korr(), use | instead of +
   in order to keep the Valgrind V bits accurate
 * Consider replacing HAVE_purify with HAVE_VALGRIND
 * Use VALGRIND_CREATE_BLOCK, VALGRIND_DISCARD in mem_root and similar places

1 files changed, 2 insertions, 1 deletions

diff --git a/BUILD/build_mccge.sh b/BUILD/build_mccge.sh
index fc0f8181692..43ca117fb78 100755
--- a/BUILD/build_mccge.sh
+++ b/BUILD/build_mccge.sh
@@ -938,9 +938,10 @@ set_up_ccache()
 set_valgrind_flags()
 {
   if test "x$valgrind_flag" = "xyes" ; then
-    loc_valgrind_flags="-USAFEMALLOC -UFORCE_INIT_OF_VARS -DHAVE_purify "
+    loc_valgrind_flags="-UFORCE_INIT_OF_VARS -DHAVE_purify "
     loc_valgrind_flags="$loc_valgrind_flags -DMYSQL_SERVER_SUFFIX=-valgrind-max"
     compiler_flags="$compiler_flags $loc_valgrind_flags"
+    with_flags="$with_flags --with-valgrind"
   fi
 }