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openwrt/include/package.mk
Christian Marangi 53a08e3743
build: make find_md5 reproducible with AUTOREMOVE 
While experimenting with the AUTOREMOVE option in search of a way to use
prebuilt host tools in different buildroot, it was discovered that the
md5 generated by find_md5 in depends.mk is not reproducible.

Currently the hash is generated by the path of the file in addition to
the file mod time. Out of confusion, probably, there was an idea that
such command was used on the package build_dir. Reality is that this
command is run on the package files. (Makefile, patches, src)

This is problematic because the package Makefile (for example) change at
each git clone and base the hash on the Makefile mtime doesn't really
reflect if the Makefile actually changes across a buildroot or not.

A better approach is to generate an hash of each file and then generate
an hash on the sort hash list. This way we remove the problem of git
clone setting a wrong mtime while keeping the integrity of checking if a
file changed for the package as any change will result in a different
hash.

Introduce a new kind of find_md5 function, find_md5_reproducible that
apply this new logic and limit it only with AUTOREMOVE option set to
prevent any kind of slowdown due to additional hash generation.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2022-09-30 22:26:51 +02:00

355 lines
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Makefile
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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2006-2020 OpenWrt.org
__package_mk:=1
all: $(if $(DUMP),dumpinfo,$(if $(CHECK),check,compile))
include $(INCLUDE_DIR)/download.mk
PKG_BUILD_DIR ?= $(BUILD_DIR)/$(if $(BUILD_VARIANT),$(PKG_NAME)-$(BUILD_VARIANT)/)$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
PKG_INSTALL_DIR ?= $(PKG_BUILD_DIR)/ipkg-install
PKG_BUILD_PARALLEL ?=
PKG_USE_MIPS16 ?= 1
PKG_IREMAP ?= 1
PKG_SKIP_DOWNLOAD=$(USE_SOURCE_DIR)$(USE_GIT_TREE)$(USE_GIT_SRC_CHECKOUT)
MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) $(if $(filter 3.% 4.0 4.1,$(MAKE_VERSION)),-j))
PKG_SOURCE_DATE_EPOCH:=$(if $(DUMP),,$(shell $(TOPDIR)/scripts/get_source_date_epoch.sh $(CURDIR)))
ifeq ($(strip $(PKG_BUILD_PARALLEL)),0)
PKG_JOBS?=-j1
else
PKG_JOBS?=$(if $(PKG_BUILD_PARALLEL),$(MAKE_J),-j1)
endif
ifdef CONFIG_USE_MIPS16
ifeq ($(strip $(PKG_USE_MIPS16)),1)
TARGET_ASFLAGS_DEFAULT = $(filter-out -mips16 -minterlink-mips16,$(TARGET_CFLAGS))
TARGET_CFLAGS += -mips16 -minterlink-mips16
endif
endif
ifeq ($(strip $(PKG_IREMAP)),1)
IREMAP_CFLAGS = $(call iremap,$(PKG_BUILD_DIR),$(notdir $(PKG_BUILD_DIR)))
TARGET_CFLAGS += $(IREMAP_CFLAGS)
endif
include $(INCLUDE_DIR)/hardening.mk
include $(INCLUDE_DIR)/prereq.mk
include $(INCLUDE_DIR)/unpack.mk
include $(INCLUDE_DIR)/depends.mk
ifneq ($(wildcard $(TOPDIR)/git-src/$(PKG_NAME)/.git),)
USE_GIT_SRC_CHECKOUT:=1
QUILT:=1
endif
ifneq ($(if $(CONFIG_SRC_TREE_OVERRIDE),$(wildcard ./git-src)),)
USE_GIT_TREE:=1
QUILT:=1
endif
ifdef USE_SOURCE_DIR
QUILT:=1
endif
ifneq ($(wildcard $(PKG_BUILD_DIR)/.source_dir),)
QUILT:=1
endif
include $(INCLUDE_DIR)/quilt.mk
find_library_dependencies = \
$(wildcard $(patsubst %,$(STAGING_DIR)/pkginfo/%.version, \
$(filter-out $(BUILD_PACKAGES), $(sort $(foreach dep4, \
$(sort $(foreach dep3, \
$(sort $(foreach dep2, \
$(sort $(foreach dep1, \
$(sort $(foreach dep0, \
$(Package/$(1)/depends), \
$(Package/$(dep0)/depends) $(dep0) \
)), \
$(Package/$(dep1)/depends) $(dep1) \
)), \
$(Package/$(dep2)/depends) $(dep2) \
)), \
$(Package/$(dep3)/depends) $(dep3) \
)), \
$(Package/$(dep4)/depends) $(dep4) \
))) \
))
PKG_DIR_NAME:=$(lastword $(subst /,$(space),$(CURDIR)))
STAMP_NO_AUTOREBUILD=$(wildcard $(PKG_BUILD_DIR)/.no_autorebuild)
PREV_STAMP_PREPARED:=$(if $(STAMP_NO_AUTOREBUILD),$(wildcard $(PKG_BUILD_DIR)/.prepared*))
ifneq ($(PREV_STAMP_PREPARED),)
STAMP_PREPARED:=$(PREV_STAMP_PREPARED)
CONFIG_AUTOREBUILD:=
else
STAMP_PREPARED=$(PKG_BUILD_DIR)/.prepared$(if $(QUILT)$(DUMP),,_$(shell $(call $(if $(CONFIG_AUTOREMOVE),find_md5_reproducible,find_md5),${CURDIR} $(PKG_FILE_DEPENDS),))_$(call confvar,CONFIG_AUTOREMOVE $(PKG_PREPARED_DEPENDS)))
endif
STAMP_CONFIGURED=$(PKG_BUILD_DIR)/.configured$(if $(DUMP),,_$(call confvar,$(PKG_CONFIG_DEPENDS)))
STAMP_CONFIGURED_WILDCARD=$(PKG_BUILD_DIR)/.configured_*
STAMP_BUILT:=$(PKG_BUILD_DIR)/.built
STAMP_INSTALLED:=$(STAGING_DIR)/stamp/.$(PKG_DIR_NAME)$(if $(BUILD_VARIANT),.$(BUILD_VARIANT),)_installed
STAGING_FILES_LIST:=$(PKG_DIR_NAME)$(if $(BUILD_VARIANT),.$(BUILD_VARIANT),).list
define CleanStaging
rm -f $(STAMP_INSTALLED)
@-(\
if [ -f $(STAGING_DIR)/packages/$(STAGING_FILES_LIST) ]; then \
$(SCRIPT_DIR)/clean-package.sh \
"$(STAGING_DIR)/packages/$(STAGING_FILES_LIST)" \
"$(STAGING_DIR)"; \
fi; \
)
endef
PKG_INSTALL_STAMP:=$(PKG_INFO_DIR)/$(PKG_DIR_NAME).$(if $(BUILD_VARIANT),$(BUILD_VARIANT),default).install
include $(INCLUDE_DIR)/package-defaults.mk
include $(INCLUDE_DIR)/package-dumpinfo.mk
include $(INCLUDE_DIR)/package-ipkg.mk
include $(INCLUDE_DIR)/package-bin.mk
include $(INCLUDE_DIR)/autotools.mk
_pkg_target:=$(if $(QUILT),,.)
override MAKEFLAGS=
CONFIG_SITE:=$(INCLUDE_DIR)/site/$(ARCH)
CUR_MAKEFILE:=$(filter-out Makefile,$(firstword $(MAKEFILE_LIST)))
SUBMAKE:=$(NO_TRACE_MAKE) $(if $(CUR_MAKEFILE),-f $(CUR_MAKEFILE))
PKG_CONFIG_PATH=$(STAGING_DIR)/usr/lib/pkgconfig:$(STAGING_DIR)/usr/share/pkgconfig
unexport QUIET CONFIG_SITE
ifeq ($(DUMP)$(filter prereq clean refresh update,$(MAKECMDGOALS)),)
ifneq ($(if $(QUILT),,$(CONFIG_AUTOREBUILD)),)
define Build/Autoclean
$(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
$(call rdep,${CURDIR} $(PKG_FILE_DEPENDS),$(STAMP_PREPARED),$(PKG_BUILD_DIR)/.dep_files,-x "*/.dep_*")
$(if $(filter prepare,$(MAKECMDGOALS)),,$(call rdep,$(PKG_BUILD_DIR),$(STAMP_BUILT),,-x "*/.dep_*" -x "*/ipkg*"))
endef
endif
endif
ifdef USE_GIT_SRC_CHECKOUT
define Build/Prepare/Default
mkdir -p $(PKG_BUILD_DIR)
ln -s $(TOPDIR)/git-src/$(PKG_NAME)/.git $(PKG_BUILD_DIR)/.git
( cd $(PKG_BUILD_DIR); \
git checkout .; \
git submodule update --recursive; \
git submodule foreach git config --unset core.worktree; \
git submodule foreach git checkout .; \
)
endef
endif
ifdef USE_GIT_TREE
define Build/Prepare/Default
mkdir -p $(PKG_BUILD_DIR)
ln -s $(CURDIR)/git-src $(PKG_BUILD_DIR)/.git
( cd $(PKG_BUILD_DIR); \
git checkout .; \
git submodule update --recursive; \
git submodule foreach git config --unset core.worktree; \
git submodule foreach git checkout .; \
)
endef
endif
ifdef USE_SOURCE_DIR
define Build/Prepare/Default
rm -rf $(PKG_BUILD_DIR)
$(if $(wildcard $(USE_SOURCE_DIR)/*),,@echo "Error: USE_SOURCE_DIR=$(USE_SOURCE_DIR) path not found"; false)
ln -snf $(USE_SOURCE_DIR) $(PKG_BUILD_DIR)
touch $(PKG_BUILD_DIR)/.source_dir
endef
endif
define Build/Exports/Default
$(1) : export ACLOCAL_INCLUDE=$$(foreach p,$$(wildcard $$(STAGING_DIR)/usr/share/aclocal $$(STAGING_DIR)/usr/share/aclocal-* $$(STAGING_DIR_HOSTPKG)/share/aclocal $$(STAGING_DIR_HOSTPKG)/share/aclocal-* $$(STAGING_DIR)/host/share/aclocal $$(STAGING_DIR)/host/share/aclocal-*),-I $$(p))
$(1) : export STAGING_PREFIX=$$(STAGING_DIR)/usr
$(1) : export PATH=$$(TARGET_PATH_PKG)
$(1) : export CONFIG_SITE:=$$(CONFIG_SITE)
$(1) : export PKG_CONFIG_PATH:=$$(PKG_CONFIG_PATH)
$(1) : export PKG_CONFIG_LIBDIR:=$$(PKG_CONFIG_PATH)
endef
Build/Exports=$(Build/Exports/Default)
define Build/CoreTargets
STAMP_PREPARED:=$$(STAMP_PREPARED)
STAMP_CONFIGURED:=$$(STAMP_CONFIGURED)
$(if $(QUILT),$(Build/Quilt))
$(call Build/Autoclean)
$(call DefaultTargets)
$(call check_download_integrity)
download:
$(foreach hook,$(Hooks/Download),
$(call $(hook))$(sep)
)
$(STAMP_PREPARED) : export PATH=$$(TARGET_PATH_PKG)
$(STAMP_PREPARED): $(STAMP_PREPARED_DEPENDS)
@-rm -rf $(PKG_BUILD_DIR)
@mkdir -p $(PKG_BUILD_DIR)
touch $$@_check
$(foreach hook,$(Hooks/Prepare/Pre),$(call $(hook))$(sep))
$(Build/Prepare)
$(foreach hook,$(Hooks/Prepare/Post),$(call $(hook))$(sep))
touch $$@
$(call Build/Exports,$(STAMP_CONFIGURED))
$(STAMP_CONFIGURED): $(STAMP_PREPARED) $(STAMP_CONFIGURED_DEPENDS)
rm -f $(STAMP_CONFIGURED_WILDCARD)
$(CleanStaging)
$(foreach hook,$(Hooks/Configure/Pre),$(call $(hook))$(sep))
$(Build/Configure)
$(foreach hook,$(Hooks/Configure/Post),$(call $(hook))$(sep))
touch $$@
$(call Build/Exports,$(STAMP_BUILT))
$(STAMP_BUILT): $(STAMP_CONFIGURED) $(STAMP_BUILT_DEPENDS)
rm -f $$@
touch $$@_check
$(foreach hook,$(Hooks/Compile/Pre),$(call $(hook))$(sep))
$(Build/Compile)
$(foreach hook,$(Hooks/Compile/Post),$(call $(hook))$(sep))
$(Build/Install)
$(foreach hook,$(Hooks/Install/Post),$(call $(hook))$(sep))
touch $$@
$(STAMP_INSTALLED) : export PATH=$$(TARGET_PATH_PKG)
$(STAMP_INSTALLED): $(STAMP_BUILT)
rm -rf $(TMP_DIR)/stage-$(PKG_DIR_NAME)
mkdir -p $(TMP_DIR)/stage-$(PKG_DIR_NAME)/host $(STAGING_DIR)/packages
$(foreach hook,$(Hooks/InstallDev/Pre),\
$(call $(hook),$(TMP_DIR)/stage-$(PKG_DIR_NAME),$(TMP_DIR)/stage-$(PKG_DIR_NAME)/host)$(sep)\
)
$(call Build/InstallDev,$(TMP_DIR)/stage-$(PKG_DIR_NAME),$(TMP_DIR)/stage-$(PKG_DIR_NAME)/host)
$(foreach hook,$(Hooks/InstallDev/Post),\
$(call $(hook),$(TMP_DIR)/stage-$(PKG_DIR_NAME),$(TMP_DIR)/stage-$(PKG_DIR_NAME)/host)$(sep)\
)
if [ -f $(STAGING_DIR)/packages/$(STAGING_FILES_LIST) ]; then \
$(SCRIPT_DIR)/clean-package.sh \
"$(STAGING_DIR)/packages/$(STAGING_FILES_LIST)" \
"$(STAGING_DIR)"; \
fi
if [ -d $(TMP_DIR)/stage-$(PKG_DIR_NAME) ]; then \
(cd $(TMP_DIR)/stage-$(PKG_DIR_NAME); find ./ > $(TMP_DIR)/stage-$(PKG_DIR_NAME).files); \
$(call locked, \
mv $(TMP_DIR)/stage-$(PKG_DIR_NAME).files $(STAGING_DIR)/packages/$(STAGING_FILES_LIST) && \
$(CP) $(TMP_DIR)/stage-$(PKG_DIR_NAME)/* $(STAGING_DIR)/; \
,staging-dir); \
fi
rm -rf $(TMP_DIR)/stage-$(PKG_DIR_NAME)
touch $$@
ifdef Build/InstallDev
$(_pkg_target)compile: $(STAMP_INSTALLED)
endif
$(_pkg_target)prepare: $(STAMP_PREPARED)
$(_pkg_target)configure: $(STAMP_CONFIGURED)
$(_pkg_target)dist: $(STAMP_CONFIGURED)
$(_pkg_target)distcheck: $(STAMP_CONFIGURED)
ifneq ($(CONFIG_AUTOREMOVE),)
compile:
-touch -r $(PKG_BUILD_DIR)/.built $(PKG_BUILD_DIR)/.autoremove 2>/dev/null >/dev/null
$(FIND) $(PKG_BUILD_DIR) -mindepth 1 -maxdepth 1 -not '(' -type f -and -name '.*' -and -size 0 ')' -and -not -name '.pkgdir' -print0 | \
$(XARGS) -0 rm -rf
endif
endef
define Build/DefaultTargets
$(if $(PKG_SKIP_DOWNLOAD),,$(if $(strip $(PKG_SOURCE_URL)),$(call Download,default)))
$(if $(DUMP),,$(Build/CoreTargets))
define Build/DefaultTargets
endef
endef
define BuildPackage
$(eval $(Package/Default))
$(eval $(Package/$(1)))
ifdef DESCRIPTION
$$(error DESCRIPTION:= is obsolete, use Package/PKG_NAME/description)
endif
ifndef Package/$(1)/description
define Package/$(1)/description
$(TITLE)
endef
endif
BUILD_PACKAGES += $(1)
$(STAMP_PREPARED): $$(if $(QUILT)$(DUMP),,$(call find_library_dependencies,$(1)))
$(foreach FIELD, TITLE CATEGORY SECTION VERSION,
ifeq ($($(FIELD)),)
$$(error Package/$(1) is missing the $(FIELD) field)
endif
)
$(if $(DUMP), \
$(if $(CHECK),,$(Dumpinfo/Package)), \
$(foreach target, \
$(if $(Package/$(1)/targets),$(Package/$(1)/targets), \
$(if $(PKG_TARGETS),$(PKG_TARGETS), ipkg) \
), $(BuildTarget/$(target)) \
) \
)
$(if $(PKG_HOST_ONLY),,$(call Build/DefaultTargets,$(1)))
endef
define pkg_install_files
$(foreach install_file,$(1),$(INSTALL_DIR) $(3)/`dirname $(install_file)`; $(INSTALL_DATA) $(2)/$(install_file) $(3)/`dirname $(install_file)`;)
endef
define pkg_install_bin
$(foreach install_apps,$(1),$(INSTALL_DIR) $(3)/`dirname $(install_apps)`; $(INSTALL_BIN) $(2)/$(install_apps) $(3)/`dirname $(install_apps)`;)
endef
Build/Prepare=$(call Build/Prepare/Default,)
Build/Configure=$(call Build/Configure/Default,)
Build/Compile=$(call Build/Compile/Default,)
Build/Install=$(if $(PKG_INSTALL),$(call Build/Install/Default,))
Build/Dist=$(call Build/Dist/Default,)
Build/DistCheck=$(call Build/DistCheck/Default,)
.NOTPARALLEL:
.PHONY: prepare-package-install
prepare-package-install:
@mkdir -p $(PKG_INFO_DIR)
@rm -f $(PKG_INSTALL_STAMP)
@echo "$(filter-out essential nonshared,$(PKG_FLAGS))" > $(PKG_INSTALL_STAMP).flags
$(PACKAGE_DIR):
mkdir -p $@
compile:
.install: .compile
install: compile
force-clean-build: FORCE
rm -rf $(PKG_BUILD_DIR)
clean-build: $(if $(wildcard $(PKG_BUILD_DIR)/.autoremove),force-clean-build)
clean: force-clean-build
$(CleanStaging)
$(call Build/UninstallDev,$(STAGING_DIR),$(STAGING_DIR)/host)
$(Build/Clean)
rm -f $(STAGING_DIR)/packages/$(STAGING_FILES_LIST)
dist:
$(Build/Dist)
distcheck:
$(Build/DistCheck)
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