8009940: G1: assert(_finger == _heap_end) failed, concurrentMark.cpp:809 Summary: Skip reference processing if the global marking stack overflows during remark. Refactor and rename set_phase(); move code that sets the concurrency level into its own routine. Do not call set_phase() from within parallel reference processing; use the concurrency level routine instead. The marking state should only set reset by CMTask[0] during the concurrent phase of the marking cycle; if an overflow occurs at any stage during the remark, the marking state will be reset after reference processing. Reviewed-by: brutisso, jmasa

#! /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>
#
fix_lines() {
  # repair bare #line directives in $1 to refer to $2
  awk < $1 > $1+ '
    /^#line 999999$/ {print "#line " (NR+1) " \"" F2 "\""; next}
    {print}
  ' F2=$2
  mv $1+ $1
}
fix_lines $2/$1 $3/$1
[ -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 )