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 
  58 COMMA := ,
  59 
  60 os := $(shell uname -o)
  61 cpu := $(shell uname -p)
  62 
  63 # Figure out what platform this is building on.
  64 me := $(cpu)-$(if $(findstring Linux,$(os)),linux-gnu)
  65 
  66 $(info Building on platform $(me))
  67 
  68 #
  69 # By default just build for the current platform, which is assumed to be Linux
  70 #
  71 ifeq ($(TARGETS), )
  72   platforms := $(me)
  73   host_platforms := $(platforms)
  74 else
  75   platforms := $(subst $(COMMA), , $(TARGETS))
  76   host_platforms := $(me)
  77 endif
  78 target_platforms := $(platforms)
  79 $(info host_platforms $(host_platforms))
  80 $(info target_platforms $(target_platforms))
  81 
  82 all compile : $(platforms)
  83 
  84 ifeq (,$(SKIP_ME))
  85   $(foreach p,$(filter-out $(me),$(platforms)),$(eval $(p) : $$(me)))
  86 endif
  87 
  88 OUTPUT_ROOT = $(abspath ../../build/devkit)
  89 RESULT = $(OUTPUT_ROOT)/result
  90 
  91 submakevars = HOST=$@ BUILD=$(me) RESULT=$(RESULT) OUTPUT_ROOT=$(OUTPUT_ROOT)
  92 
  93 $(host_platforms) :
  94         @echo 'Building compilers for $@'
  95         @echo 'Targets: $(target_platforms)'
  96         for p in $(filter $@, $(target_platforms)) $(filter-out $@, $(target_platforms)); do \
  97           $(MAKE) -f Tools.gmk download-rpms $(submakevars) \
  98               TARGET=$$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 
 106 today := $(shell date +%Y%m%d)
 107 
 108 define 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)
 112 endef
 113 
 114 $(foreach p,$(host_platforms),$(foreach t,$(target_platforms),$(eval $(call Mktar,$(p),$(t)))))
 115 
 116 tars : all $(TARFILES)
 117 onlytars : $(TARFILES)
 118 %.tar.gz :
 119         $(MAKE) -r -f Tars.gmk SRC_DIR=$(RESULT)/$(PLATFORM) TAR_FILE=$@
 120 
 121 clean :
 122         rm -rf $(addprefix ../../build/devkit/, result $(host_platforms))
 123 dist-clean: clean
 124         rm -rf $(addprefix ../../build/devkit/, src download)
 125 
 126 FORCE :
 127 .PHONY : all compile tars $(configs) $(host_platforms) clean dist-clean