1#
2# Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
3# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4#
5# This code is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License version 2 only, as
7# published by the Free Software Foundation.  Oracle designates this
8# particular file as subject to the "Classpath" exception as provided
9# by Oracle in the LICENSE file that accompanied this code.
10#
11# This code is distributed in the hope that it will be useful, but WITHOUT
12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14# version 2 for more details (a copy is included in the LICENSE file that
15# accompanied this code).
16#
17# You should have received a copy of the GNU General Public License version
18# 2 along with this work; if not, write to the Free Software Foundation,
19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20#
21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22# or visit www.oracle.com if you need additional information or have any
23# questions.
24#
25
26################################################################################
27#
28# This Makefile, together with Tools.gmk, can be used to compile a set of
29# gcc based cross compilation, portable, self contained packages, capable
30# of building OpenJDK.
31#
32# By default this Makefile will build a native toolchain for the current
33# platform if called with something like this:
34#
35# make tars BASE_OS=OL
36#
37# To build the full set of crosstools for additional platforms, use a command
38# line looking like this:
39#
40# make TARGETS="aarch64-linux-gnu" BASE_OS=Fedora
41# or
42# make TARGETS="arm-linux-gnueabihf ppc64-linux-gnu" BASE_OS=Fedora BASE_OS_VERSION=17
43#
44# to build several devkits for a specific OS version at once.
45# You can find the final results under ../../build/devkit/result/<host>-to-<target>
46#
47# You may want the native toolchain to be used when compiling the cross
48# compilation toolchains. To achieve this, first build the native toolchain,
49# then add the bin directory from this build to the path when invoking this
50# makefile again for cross compilation. Ex:
51#
52# PATH=$PWD/../../build/devkit/result/x86_64-linux-gnu-to-x86_64-linux-gnu/bin:$PATH \
53#    make TARGETS="arm-linux-gnueabihf,ppc64-linux-gnu" BASE_OS=Fedora
54#
55# This is the makefile which iterates over all host and target platforms.
56#
57
58COMMA := ,
59
60os := $(shell uname -o)
61cpu := $(shell uname -p)
62
63# Figure out what platform this is building on.
64me := $(cpu)-$(if $(findstring Linux,$(os)),linux-gnu)
65
66$(info Building on platform $(me))
67
68#
69# By default just build for the current platform, which is assumed to be Linux
70#
71ifeq ($(TARGETS), )
72  platforms := $(me)
73  host_platforms := $(platforms)
74else
75  platforms := $(subst $(COMMA), , $(TARGETS))
76  host_platforms := $(me)
77endif
78target_platforms := $(platforms)
79$(info host_platforms $(host_platforms))
80$(info target_platforms $(target_platforms))
81
82all compile : $(platforms)
83
84ifeq (,$(SKIP_ME))
85  $(foreach p,$(filter-out $(me),$(platforms)),$(eval $(p) : $$(me)))
86endif
87
88OUTPUT_ROOT = $(abspath ../../build/devkit)
89RESULT = $(OUTPUT_ROOT)/result
90
91submakevars = HOST=$@ BUILD=$(me) RESULT=$(RESULT) OUTPUT_ROOT=$(OUTPUT_ROOT)
92
93$(host_platforms) :
94	@echo 'Building compilers for $@'
95	@echo 'Targets: $(target_platforms)'
96	for p in $(filter $@, $(target_platforms)) $(filter-out $@, $(target_platforms)); do \
97	  $(MAKE) -f Tools.gmk download-rpms $(submakevars) \
98              TARGET=$$p PREFIX=$(RESULT)/$@-to-$$p && \
99	  $(MAKE) -f Tools.gmk all $(submakevars) \
100              TARGET=$$p PREFIX=$(RESULT)/$@-to-$$p && \
101	  $(MAKE) -f Tools.gmk ccache $(submakevars) \
102              TARGET=$@ PREFIX=$(RESULT)/$@-to-$$p || exit 1 ; \
103	done
104	@echo 'All done"'
105
106today := $(shell date +%Y%m%d)
107
108define Mktar
109  $(1)-to-$(2)_tar = $$(RESULT)/sdk-$(1)-to-$(2)-$$(today).tar.gz
110  $$($(1)-to-$(2)_tar) : PLATFORM = $(1)-to-$(2)
111  TARFILES += $$($(1)-to-$(2)_tar)
112endef
113
114$(foreach p,$(host_platforms),$(foreach t,$(target_platforms),$(eval $(call Mktar,$(p),$(t)))))
115
116tars : all $(TARFILES)
117onlytars : $(TARFILES)
118%.tar.gz :
119	$(MAKE) -r -f Tars.gmk SRC_DIR=$(RESULT)/$(PLATFORM) TAR_FILE=$@
120
121clean :
122	rm -rf $(addprefix ../../build/devkit/, result $(host_platforms))
123dist-clean: clean
124	rm -rf $(addprefix ../../build/devkit/, src download)
125
126FORCE :
127.PHONY : all compile tars $(configs) $(host_platforms) clean dist-clean
128