1 # 2 # Copyright (c) 2011, 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. 8 # 9 # This code is distributed in the hope that it will be useful, but WITHOUT 10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 # version 2 for more details (a copy is included in the LICENSE file that 13 # accompanied this code). 14 # 15 # You should have received a copy of the GNU General Public License version 16 # 2 along with this work; if not, write to the Free Software Foundation, 17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 # 19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 # or visit www.oracle.com if you need additional information or have any 21 # questions. 22 # 23 # 24 25 # This file defines variables and macros which are used in the makefiles to 26 # allow distributions to augment or replace common hotspot code with 27 # distribution-specific source files. This capability is disabled when 28 # an OPENJDK build is requested, unless HS_ALT_SRC_REL has been set externally. 29 30 # Requires: GAMMADIR 31 # Provides: 32 # variables: HS_COMMON_SRC, HS_ALT_SRC, HS_COMMON_SRC_REL, and HS_ALT_SRC_REL 33 # functions: altsrc-equiv, if-has-altsrc, altsrc, altsrc-replace 34 35 HS_COMMON_SRC_REL=src 36 37 ifneq ($(OPENJDK),true) 38 # This needs to be changed to a more generic location, but we keep it 39 # as this for now for compatibility 40 HS_ALT_SRC_REL=src/closed 41 else 42 HS_ALT_SRC_REL=NO_SUCH_PATH 43 endif 44 45 HS_COMMON_SRC=$(GAMMADIR)/$(HS_COMMON_SRC_REL) 46 HS_ALT_SRC=$(GAMMADIR)/$(HS_ALT_SRC_REL) 47 48 ## altsrc-equiv 49 # 50 # Convert a common source path to an alternative source path 51 # 52 # Parameter: An absolute path into the common sources 53 # Result: The matching path to the alternate-source location 54 # 55 altsrc-equiv=$(subst $(HS_COMMON_SRC)/,$(HS_ALT_SRC)/,$(1)) 56 57 58 ## if-has-altsrc 59 # 60 # Conditional macro to test for the existence of an alternate source path 61 # 62 # Parameter: An absolute path into the common sources 63 # Parameter: Result if the alternative-source location exists 64 # Parameter: Result if the alternative-source location does not exist 65 # Result: expands to parameter 2 or 3 depending on existence of alternate source 66 # 67 if-has-altsrc=$(if $(wildcard $(call altsrc-equiv,$(1))),$(2),$(3)) 68 69 70 ## altsrc 71 # 72 # Converts common source path to alternate source path if the alternate 73 # path exists, otherwise evaluates to nul (empty string) 74 # 75 # Parameter: An absolute path into the common sources 76 # Result: The equivalent path to the alternate-source location, if such a 77 # location exists on the filesystem. Otherwise it expands to empty. 78 # 79 altsrc=$(call if-has-altsrc,$(1),$(call altsrc-equiv,$(1))) 80 81 ## commonsrc 82 # 83 # Returns parameter. 84 # 85 commonsrc=$(1) 86 87 88 ## altsrc-replace 89 # 90 # Converts a common source path to an alternate source path if the alternate 91 # source path exists. Otherwise it evaluates to the input common source path. 92 # 93 # Parameter: An absolute path into the common sources 94 # Result: A path to either the common or alternate sources 95 # 96 altsrc-replace=$(call if-has-altsrc,$(1),$(call altsrc-equiv,$(1)),$(1))