6782457: CMS: Livelock in CompactibleFreeListSpace::block_size() 6736295: SIGSEGV in product jvm, assertion "these are the only valid states during a mark sweep" in fastdebug Summary: Restructured the code in the perm gen allocation retry loop so as to avoid "safepoint-blocking" on locks, in this case the Heap_lock, while holding uninitialized allocated heap storage. Reviewed-by: apetrusenko, iveresov, jcoomes, jmasa, poonam

#! /bin/sh
#
# This file is used by adlc.make to selectively update generated
# adlc files. Because source and target diretories are relative
# paths, this file is copied to the target build directory before
# use.
#
# adlc-updater <file> <source-dir> <target-dir>
#
[ -f $3/$1 ] && cmp -s $2/$1 $3/$1 || \
( [ -f $3/$1 ]; echo Updating $3/$1 ; touch $2/made-change ; mv $2/$1 $3/$1 )