#
# Copyright 1998-2007 Sun Microsystems, Inc.  All Rights Reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Sun designates this
# particular file as subject to the "Classpath" exception as provided
# by Sun in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
# CA 95054 USA or visit www.sun.com if you need additional information or
# have any questions.
#

#
# The cscope.out file is made in the current directory and spans the entire
# source tree.
#
# Things to note:
#	1. We use relative names for cscope.
#	2. We *don't* remove the old cscope.out file, because cscope is smart
#	   enough to only build what has changed.  It can be confused, however,
#	   if files are renamed or removed, so it may be necessary to manually
#	   remove cscope.out if a lot of reorganization has occurred.
#
CSDIRS	= $(JDK_TOPDIR)/src $(JDK_TOPDIR)/build
CSINCS	= $(CSDIRS:%=-I%)

#
# Set CSFLAGS env variable to -b when using fast cscope to build the fast
# (but large) cscope data bases.
#
CSCOPE	= cscope-fast
ifeq ($(CSCOPE), cscope-fast)
CSFLAGS	= -b
endif

#
# Adding .java files pushes the file count of a full workspace up about 2500
# files, which slows database lookup.  Thus allow these files to be added from
# the environment (CSCLASSES=yes).
#
ifdef	CSCLASSES
ADDCLASSES=	-o -name '*.java'
endif

#
# Adding CClassHeaders also pushes the file count of a full workspace up about
# 200 files (these files also don't exist in a new workspace, and thus will
# cause the recreation of the database as they get created, which might seem
# A little confusing).  Thus allow these files to be added from the environment
# (CSHEADERS=yes).
#
ifndef	CSHEADERS
RMCCHEADERS=	-o -name CClassHeaders
endif


.PRECIOUS:	cscope.out

cscope.out: cscope.files FRC
	$(CSCOPE) $(CSFLAGS)

#
# What files should we include?  A simple rule might be just those files under
# SCM control, however this would miss files we create like the opcodes and
# CClassHeaders.  The following attempts to find everything that is *useful*.
# (.del files are created by sccsrm, demo directories contain many .java files
# that probably aren't useful for development, and the pkgarchive may contain
# duplicates of files within the source hierarchy).  The ordering of the .raw
# file is an attempt to make cscope display the most relevant files first.
#
cscope.files: FRC
	@-$(RM) cscope.files cscope.files.raw
	echo "$(CSINCS)" > cscope.files
	-find $(CSDIRS) $(SCM_DIRS_prune) -o -type d \( -name '.del-*' -o \
	    -name '*demo' -o -name pkgarchive $(RMCCHEADERS) \) -prune -o \
	    -type f \( -name '*.[Ccshlxy]' -o -name '*.il' -o -name '*.cc' -o \
	    -name 'Makefile*' -o -name GNUmakefile -o -name '*.gmk' -o \
	    -name '*.cpp' $(ADDCLASSES) \) -print > cscope.files.raw
	-egrep -v "\.java|\/build\/"	cscope.files.raw >> cscope.files
	-fgrep ".java"			cscope.files.raw >> cscope.files
	-fgrep "/build/"		cscope.files.raw >> cscope.files
	@-$(RM) cscope.files.raw

cscope.clean:
	-$(RM) cscope.files cscope.files.raw cscope.out

FRC: