detect even more memory mismanagement on glibc

Change-Id: Idba21b12582e9ae7d240d9d3527f9ac5893252f7

1 files changed, 13 insertions, 0 deletions

diff --git a/solenv/bin/linkoo b/solenv/bin/linkoo
index c97df916dd40..78202345ab71 100755
--- a/solenv/bin/linkoo
+++ b/solenv/bin/linkoo
@@ -54,6 +54,19 @@ export STAR_RESOURCEPATH=$thisdir/resource
 export SAL_DISABLE_FLOATGRAB=1
 export G_SLICE=always-malloc
 export MALLOC_CHECK_=2
+#get some random value between 0 and 255
+rndbyte=$RANDOM
+if test -n "${rndbyte}"; then
+  rndbyte=$(( $rndbyte % 256 ))
+else
+  if test -r /dev/urandom; then
+    rndbyte=$(dd if=/dev/urandom bs=1 count=1 2>/dev/null | od -tu1 | cut -s -d " " -f2)
+  else
+    rndbyte=$(( (( $(date +%S) + 1 ) * $$ ) % 255 ))
+  fi
+fi
+export MALLOC_PERTURB_=${rndbyte}
+unset rndbyte
 export OOO_DISABLE_RECOVERY=1
 export SAL_ALLOW_LINKOO_SYMLINKS=1
 ';