commit 81de065f33b4fbcb02a9a5b7fd75fdb6bde1506f
author florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> Sat Apr 25 18:23:21 2015 +0000
committer florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> Sat Apr 25 18:23:21 2015 +0000
tree 0b13f82ac61dbd42ccd25a7504e9231b90ae98b1
parent 7cbe0688bc1ac313110dee71966a5d958f8c7066

Fix BZ #342683. Based on patch by Ivo Raisr.
What this does is to make sure that the initial client data segment
is marked as unaddressable. This is consistent with the behaviour of
brk when the data segment is shrunk. The "freed" memory is marked
as unaddressable.
Special tweaks were needed for s390 which was returning early from
the funtion to avoid sloppy register definedness initialisation.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15144 a5019735-40e9-0310-863c-91ae7b9d1cf9