make-rules/prep-patch.mk

   1 #
   2 # CDDL HEADER START
   3 #
   4 # The contents of this file are subject to the terms of the
   5 # Common Development and Distribution License (the "License").
   6 # You may not use this file except in compliance with the License.
   7 #
   8 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9 # or http://www.opensolaris.org/os/licensing.
  10 # See the License for the specific language governing permissions
  11 # and limitations under the License.
  12 #
  13 # When distributing Covered Code, include this CDDL HEADER in each
  14 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15 # If applicable, add the following below this CDDL HEADER, with the
  16 # fields enclosed by brackets "[]" replaced with your own identifying
  17 # information: Portions Copyright [yyyy] [name of copyright owner]
  18 #
  19 # CDDL HEADER END
  20 #
  21 # Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
  22 #
  23
  24 GPATCH =        /usr/gnu/bin/patch
  25 PATCH_LEVEL ?=  1
  26 GPATCH_BACKUP = --backup --version-control=numbered
  27 GPATCH_FLAGS =  --strip=$(PATCH_LEVEL) $(GPATCH_BACKUP)
  28
  29 #
  30 # Rules for patching source that is downloaded and unpacked or pulled from
  31 # a source repository.  Patches should be named
  32 # patches/{patch-file-name}.patch{version} where {patch-file-name} is a
  33 # meaningful name for the patch contents and {version} corresponds to the
  34 # COMPONENT_NAME{version} of the source to be patched.  Typically, version
  35 # would be something like "_1", "_2", ...  After all {version} patches have
  36 # been applied, a final set of patches without a {version} suffix may be
  37 # applied.
  38 #
  39 # PATCH_DIR can be overridden to move patches to a different location
  40 # PATCH_PATTERN can be overridden to adjust the patch naming scheme that the
  41 #     build recognizes.
  42 # ADDITIONAL_PATCHES can be defined in the component Makefile to include
  43 #     additional patches.
  44 #
  45
  46 PATCH_PATTERN ?=        *.patch*
  47
  48 PATCH_DIR ?=            patches
  49
  50 PATCHES =       $(shell find $(PATCH_DIR) -type f \
  51                          -name '$(PATCH_PATTERN)' 2>/dev/null | \
  52                                 LC_COLLATE=C sort)
  53
  54 PCH_SUFFIXES = $(patsubst .patch_%,%, $(filter-out .patch,$(suffix $(PATCHES))))
  55
  56 define patch-rule
  57
  58 ifeq ($(1),_0)
  59 PATCH_PATTERN$(1) ?=    %.patch
  60 PATCHES$(1) = $(filter %.patch,$(PATCHES))
  61 else
  62 PATCH_PATTERN$(1) ?=    %.patch$(1)
  63 PATCHES$(1) = $(filter %.patch$(1),$(PATCHES))
  64 endif
  65
  66 ifneq ($(strip $(ADDITIONAL_PATCHES$(1))),)
  67 PATCHES$(1) += $(ADDITIONAL_PATCHES$(1))
  68 endif
  69
  70 ifneq ($$(PATCHES$(1)),)
  71 PATCH_STAMPS$(1) += $$(PATCHES$(1):$(PATCH_DIR)/%=$$(SOURCE_DIR$(1))/.patched-%)
  72
  73 # We should unpack the source that we patch before we patch it.
  74 $$(PATCH_STAMPS$(1)):   unpack
  75
  76 # Adding MAKEFILE_PREREQ because gmake seems to evaluate the need to patch
  77 # before re-unpacking if the Makefile changed.  The various stamps are
  78 # removed as part of the unpacking process, and it doesn't appear to
  79 # re-evaluate the need for patching.  If we ever move the stamps to the build
  80 # directory, we may not need the dependency any more.
  81 $$(SOURCE_DIR$(1))/.patched-%:  $(PATCH_DIR)/% $(MAKEFILE_PREREQ)
  82         $(GPATCH) -d $$(@D) $$(GPATCH_FLAGS) < $$<
  83         $(TOUCH) $$(@)
  84
  85 $$(SOURCE_DIR$(1))/.patched-%:  $(MAKEFILE_PREREQ)
  86         $(GPATCH) -d $$(@D) $$(GPATCH_FLAGS) < $$<
  87         $(TOUCH) $$(@)
  88
  89 $$(SOURCE_DIR$(1))/.patched:    $$(PATCH_STAMPS$(1))
  90         $(TOUCH) $$(@)
  91
  92 patch:: $$(SOURCE_DIR$(1))/.patched
  93
  94 USERLAND_REQUIRED_PACKAGES += text/gnu-patch
  95
  96 endif
  97 endef
  98
  99 #
 100 # Define the rules required to download any source archives and augment any
 101 # cleanup macros.
 102 #
 103 $(foreach suffix, $(PCH_SUFFIXES), $(eval $(call patch-rule,_$(suffix))))
 104 $(eval $(call patch-rule,))     # this must be last so we don't drop *.patch_%.