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Java example source code file (top.make)

This example Java source code file (top.make) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

ad_dir, ad_files_if_required, cached_plat, general, generated, gnu, license, make, mflags-adjusted, oracle, phony, public, this

The top.make Java example source code

#
# Copyright (c) 1998, 2013, Oracle and/or its affiliates. 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.
#
# 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#  
#

# top.make is included in the Makefile in the build directories.
# It DOES NOT include the vm dependency info in order to be faster.
# Its main job is to implement the incremental form of make lists.
# It also:
#   -builds and runs adlc via adlc.make
#   -generates JVMTI source and docs via jvmti.make (JSR-163)
#   -generate sa-jdi.jar (JDI binding to core files)

# It assumes the following flags are set:
# CFLAGS Platform_file, Src_Dirs_I, Src_Dirs_V, SYSDEFS, AOUT, Jvm_Obj_Files

# -- D. Ungar (5/97) from a file by Bill Bush

# Don't override the built-in $(MAKE).
# Instead, use "gmake" (or "gnumake") from the command line.  --Rose
#MAKE = gmake

include $(GAMMADIR)/make/altsrc.make

GENERATED   = ../generated
VM          = $(GAMMADIR)/src/share/vm
Plat_File   = $(Platform_file)
CDG         = cd $(GENERATED); 

Cached_plat = $(GENERATED)/platform.current

AD_Dir   = $(GENERATED)/adfiles
ADLC     = $(AD_Dir)/adlc
AD_Spec  = $(call altsrc-replace,$(HS_COMMON_SRC)/cpu/$(Platform_arch)/vm/$(Platform_arch_model).ad)
AD_Src   = $(call altsrc-replace,$(HS_COMMON_SRC)/share/vm/adlc)
AD_Names = ad_$(Platform_arch_model).hpp ad_$(Platform_arch_model).cpp
AD_Files = $(AD_Names:%=$(AD_Dir)/%)

# AD_Files_If_Required/COMPILER1 = ad_stuff
AD_Files_If_Required/COMPILER2 = ad_stuff
AD_Files_If_Required/TIERED = ad_stuff
AD_Files_If_Required = $(AD_Files_If_Required/$(TYPE))

# Wierd argument adjustment for "gnumake -j..."
adjust-mflags   = $(GENERATED)/adjust-mflags
MFLAGS-adjusted = -r `$(adjust-mflags) "$(MFLAGS)" "$(HOTSPOT_BUILD_JOBS)"`


# default target: update lists, make vm
# done in stages to force sequential order with parallel make
#

default: vm_build_preliminaries the_vm
	@echo All done.

# This is an explicit dependency for the sake of parallel makes.
vm_build_preliminaries:  checks $(Cached_plat) $(AD_Files_If_Required) jvmti_stuff trace_stuff sa_stuff
	@# We need a null action here, so implicit rules don't get consulted.

$(Cached_plat): $(Plat_File)
	$(CDG) cp $(Plat_File) $(Cached_plat)

# make AD files as necessary
ad_stuff: $(Cached_plat) $(adjust-mflags)
	@$(MAKE) -f adlc.make $(MFLAGS-adjusted)

# generate JVMTI files from the spec
jvmti_stuff: $(Cached_plat) $(adjust-mflags)
	@$(MAKE) -f jvmti.make $(MFLAGS-adjusted)

# generate trace files 
trace_stuff: jvmti_stuff $(Cached_plat) $(adjust-mflags)
	@$(MAKE) -f trace.make $(MFLAGS-adjusted)

# generate SA jar files and native header
sa_stuff:
	@$(MAKE) -f sa.make $(MFLAGS-adjusted)

# and the VM: must use other makefile with dependencies included

# We have to go to great lengths to get control over the -jN argument
# to the recursive invocation of vm.make.  The problem is that gnumake
# resets -jN to -j1 for recursive runs.  (How helpful.)
# Note that the user must specify the desired parallelism level via a
# command-line or environment variable name HOTSPOT_BUILD_JOBS.
$(adjust-mflags): $(GAMMADIR)/make/$(Platform_os_family)/makefiles/adjust-mflags.sh
	@+rm -f $@ $@+
	@+cat $< > $@+
	@+chmod +x $@+
	@+mv $@+ $@

the_vm: vm_build_preliminaries $(adjust-mflags)
	@$(MAKE) -f vm.make $(MFLAGS-adjusted)

install gamma: the_vm
	@$(MAKE) -f vm.make $@

# next rules support "make foo.[oi]"

%.o %.i %.s:
	$(MAKE) -f vm.make $(MFLAGS) $@
	#$(MAKE) -f vm.make $@

# this should force everything to be rebuilt
clean: 
	rm -f $(GENERATED)/*.class
	$(MAKE) -f vm.make $(MFLAGS) clean

# just in case it doesn't, this should do it
realclean:
	$(MAKE) -f vm.make $(MFLAGS) clean
	rm -fr $(GENERATED)

.PHONY: default vm_build_preliminaries
.PHONY: lists ad_stuff jvmti_stuff trace_stuff sa_stuff the_vm clean realclean
.PHONY: checks check_os_version install

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