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 =       $(wildcard $(PATCH_DIR)/$(PATCH_PATTERN))
  51
  52 PCH_SUFFIXES = $(patsubst .patch_%,%, $(filter-out .patch,$(suffix $(PATCHES))))
  53
  54 define patch-rule
  55
  56 ifeq ($(1),_0)
  57 PATCH_PATTERN$(1) ?=    %.patch
  58 PATCHES$(1) = $(filter %.patch,$(PATCHES))
  59 else
  60 PATCH_PATTERN$(1) ?=    %.patch$(1)
  61 PATCHES$(1) = $(filter %.patch$(1),$(PATCHES))
  62 endif
  63
  64 ifneq ($(strip $(ADDITIONAL_PATCHES$(1))),)
  65 PATCHES$(1) += $(ADDITIONAL_PATCHES$(1))
  66 endif
  67
  68 ifneq ($$(PATCHES$(1)),)
  69 PATCH_STAMPS$(1) += $$(PATCHES$(1):$(PATCH_DIR)/%=$$(SOURCE_DIR$(1))/.patched-%)
  70
  71 # We should unpack the source that we patch before we patch it.
  72 $$(PATCH_STAMPS$(1)):   unpack
  73
  74 # Adding MAKEFILE_PREREQ because gmake seems to evaluate the need to patch
  75 # before re-unpacking if the Makefile changed.  The various stamps are
  76 # removed as part of the unpacking process, and it doesn't appear to
  77 # re-evaluate the need for patching.  If we ever move the stamps to the build
  78 # directory, we may not need the dependency any more.
  79 $$(SOURCE_DIR$(1))/.patched-%:  $(PATCH_DIR)/% $(MAKEFILE_PREREQ)
  80         $(GPATCH) -d $$(@D) $$(GPATCH_FLAGS) < $$<
  81         $(TOUCH) $$(@)
  82
  83 $$(SOURCE_DIR$(1))/.patched-%:  $(MAKEFILE_PREREQ)
  84         $(GPATCH) -d $$(@D) $$(GPATCH_FLAGS) < $$<
  85         $(TOUCH) $$(@)
  86
  87 $$(SOURCE_DIR$(1))/.patched:    $$(PATCH_STAMPS$(1))
  88         $(TOUCH) $$(@)
  89
  90 patch:: $$(SOURCE_DIR$(1))/.patched
  91
  92 USERLAND_REQUIRED_PACKAGES += text/gnu-patch
  93
  94 endif
  95 endef
  96
  97 #
  98 # Define the rules required to download any source archives and augment any
  99 # cleanup macros.
 100 #
 101 $(foreach suffix, $(PCH_SUFFIXES), $(eval $(call patch-rule,_$(suffix))))
 102 $(eval $(call patch-rule,))     # this must be last so we don't drop *.patch_%.
 103
 104 # Helper target for patches refresh
 105 refresh-patches: $(QUILT) patch
 106         # Unapply all patches
 107         for p in $(PATCHES) ; do \
 108                 echo $$p ; \
 109         done | $(TAC) | while read p ; do \
 110                 $(GPATCH) -d $(SOURCE_DIR) --strip=$(PATCH_LEVEL) --reverse < $$p \
 111                 && continue ; \
 112                 exit 1 ; \
 113         done
 114         # Make sure the series file does not exist
 115         $(RM) $(COMPONENT_DIR)/$(PATCH_DIR)/series
 116         # Apply and refresh patches, then unapply them to prepare the tree for
 117         # the next quilt run loop
 118         cd $(SOURCE_DIR) ; for p in $(PATCHES) ; do \
 119                 QUILT_PATCHES=../$(PATCH_DIR) $(QUILT) import --quiltrc /dev/null -p $(PATCH_LEVEL) "../$$p" \
 120                 && QUILT_PATCHES=../$(PATCH_DIR) $(QUILT) push --quiltrc /dev/null -q \
 121                 && QUILT_PATCHES=../$(PATCH_DIR) $(QUILT) refresh --quiltrc /dev/null -p $(if $(filter 0,$(PATCH_LEVEL)),0,1) --no-timestamps --no-index \
 122                 && continue ; \
 123                 exit 1 ; \
 124         done ; \
 125         [ ! -e $(COMPONENT_DIR)/$(PATCH_DIR)/series ] || (($(PATCH_LEVEL) == 0)) || QUILT_PATCHES=../$(PATCH_DIR) quilt pop --quiltrc /dev/null -a -q
 126         # Remove unneeded quilt files
 127         $(RM) -r $(SOURCE_DIR)/.pc
 128         $(RM) $(COMPONENT_DIR)/$(PATCH_DIR)/series
 129         # Apply and refresh patches again to get the desired patch format
 130         # (needed only with non-zero PATCH_LEVEL)
 131         (($(PATCH_LEVEL) == 0)) || for p in $(PATCHES) ; do \
 132                 QUILT_PATCHES=$(PATCH_DIR) $(QUILT) import --quiltrc /dev/null -p 0 "$$p" \
 133                 && QUILT_PATCHES=$(PATCH_DIR) $(QUILT) push --quiltrc /dev/null -q \
 134                 && QUILT_PATCHES=$(PATCH_DIR) $(QUILT) refresh --quiltrc /dev/null -p 0 --no-timestamps --no-index \
 135                 && continue ; \
 136                 exit 1 ; \
 137         done
 138         # Remove unneeded quilt files
 139         (($(PATCH_LEVEL) == 0)) || $(RM) -r $(COMPONENT_DIR)/.pc
 140         (($(PATCH_LEVEL) == 0)) || $(RM) $(COMPONENT_DIR)/$(PATCH_DIR)/series