hotspot/make/linux/adlc_updater
author dl
Tue, 28 Jul 2009 13:24:52 -0700
changeset 3414 cdf768813b4d
parent 1662 76a93a5fb765
child 6757 b50903cdd0b0
permissions -rw-r--r--
6785442: ConcurrentLinkedQueue.remove() and poll() can both remove the same element 6493942: ConcurrentLinkedQueue.remove sometimes very slow Summary: new algorithm for handling concurrent linked lists Reviewed-by: martin

#! /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
}
[ -f $3/$1 ] && (fix_lines $2/$1 $3/$1; cmp -s $2/$1 $3/$1) || \
( [ -f $3/$1 ] && echo Updating $3/$1 ; touch $2/made-change ; mv $2/$1 $3/$1 )