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################################################################################
#
# This file contains various utility functions used by the package
# infrastructure, or by the packages themselves.
#
################################################################################
#
# Manipulation of .config files based on the Kconfig
# infrastructure. Used by the BusyBox package, the Linux kernel
# package, and more.
#
# KCONFIG_DOT_CONFIG ([file])
# Returns the path to the .config file that should be used, which will
# be $(1) if provided, or the current package .config file otherwise.
KCONFIG_DOT_CONFIG = $(strip \
$(if $(strip $(1)), $(1), \
$($(PKG)_BUILDDIR)/$($(PKG)_KCONFIG_DOTCONFIG) \
) \
)
# KCONFIG_MUNGE_DOT_CONFIG (option, newline [, file])
define KCONFIG_MUNGE_DOT_CONFIG
$(SED) '/^\(# \)\?$(strip $(1))\>/d' $(call KCONFIG_DOT_CONFIG,$(3)) && \
echo '$(strip $(2))' >> $(call KCONFIG_DOT_CONFIG,$(3))
endef
# KCONFIG_ENABLE_OPT (option [, file])
# If the option is already set to =m or =y, ignore.
define KCONFIG_ENABLE_OPT
$(Q)if ! grep -q '^$(strip $(1))=[my]' $(call KCONFIG_DOT_CONFIG,$(2)); then \
$(call KCONFIG_MUNGE_DOT_CONFIG, $(1), $(1)=y, $(2)); \
fi
endef
# KCONFIG_SET_OPT (option, value [, file])
KCONFIG_SET_OPT = $(Q)$(call KCONFIG_MUNGE_DOT_CONFIG, $(1), $(1)=$(2), $(3))
# KCONFIG_DISABLE_OPT (option [, file])
KCONFIG_DISABLE_OPT = $(Q)$(call KCONFIG_MUNGE_DOT_CONFIG, $(1), $(SHARP_SIGN) $(1) is not set, $(2))
# Helper functions to determine the name of a package and its
# directory from its makefile directory, using the $(MAKEFILE_LIST)
# variable provided by make. This is used by the *-package macros to
# automagically find where the package is located.
pkgdir = $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
pkgname = $(lastword $(subst /, ,$(pkgdir)))
# Helper to build the extension for a package archive, based on various
# conditions.
# $(1): upper-case package name
pkg_source_ext = $(BR_FMT_VERSION_$($(1)_SITE_METHOD))$(BR_FMT_VERSION_$($(1)_DOWNLOAD_POST_PROCESS)).tar.gz
# Define extractors for different archive suffixes
INFLATE.bz2 = $(BZCAT)
INFLATE.gz = $(ZCAT)
INFLATE.lz = $(LZCAT)
INFLATE.lzma = $(XZCAT)
INFLATE.tbz = $(BZCAT)
INFLATE.tbz2 = $(BZCAT)
INFLATE.tgz = $(ZCAT)
INFLATE.xz = $(XZCAT)
INFLATE.zst = $(ZSTDCAT)
INFLATE.tar = cat
# suitable-extractor(filename): returns extractor based on suffix
suitable-extractor = $(INFLATE$(suffix $(1)))
EXTRACTOR_PKG_DEPENDENCY.lzma = $(BR2_XZCAT_HOST_DEPENDENCY)
EXTRACTOR_PKG_DEPENDENCY.xz = $(BR2_XZCAT_HOST_DEPENDENCY)
EXTRACTOR_PKG_DEPENDENCY.lz = $(BR2_LZIP_HOST_DEPENDENCY)
EXTRACTOR_PKG_DEPENDENCY.zst = $(BR2_ZSTD_HOST_DEPENDENCY)
# extractor-pkg-dependency(filename): returns a Buildroot package
# dependency needed to extract file based on suffix
extractor-pkg-dependency = $(EXTRACTOR_PKG_DEPENDENCY$(suffix $(1)))
# extractor-system-dependency(filename): returns the name of the tool
# needed to extract 'filename', and is meant to be used with
# DL_TOOLS_DEPENDENCIES, in order to check that the necesary tool is
# provided by the system Buildroot runs on.
#
# $(firstword) is used here because the extractor can have arguments,
# like ZCAT="gzip -d -c", and to check for the dependency we only want
# 'gzip'.
extractor-system-dependency = $(if $(EXTRACTOR_PKG_DEPENDENCY$(suffix $(1))),,\
$(firstword $(INFLATE$(suffix $(1)))))
# check-deprecated-variable -- throw an error on deprecated variables
# example:
# $(eval $(call check-deprecated-variable,FOO_MAKE_OPT,FOO_MAKE_OPTS))
define check-deprecated-variable # (deprecated var, new var)
ifneq ($$(origin $(1)),undefined)
$$(error Package error: use $(2) instead of $(1). Please fix your .mk file)
endif
endef
# $(1): YES or NO
define yesno-to-bool
$(subst NO,false,$(subst YES,true,$(1)))
endef
# json-info -- return package or filesystem metadata formatted as an entry
# of a JSON dictionnary
# $(1): upper-case package or filesystem name
define json-info
"$($(1)_NAME)": {
"type": $(call mk-json-str,$($(1)_TYPE)),
$(if $(filter rootfs,$($(1)_TYPE)), \
$(call _json-info-fs,$(1)), \
$(call _json-info-pkg,$(1)), \
)
}
endef
# _json-info-pkg, _json-info-pkg-details, _json-info-fs: private helpers
# for json-info, above
define _json-info-pkg
"name": $(call mk-json-str,$($(1)_RAWNAME)),
$(if $($(1)_IS_VIRTUAL), \
"virtual": true$(comma),
"virtual": false$(comma)
$(call _json-info-pkg-details,$(1)) \
)
"stamp_dir": $(call mk-json-str,$(patsubst $(CONFIG_DIR)/%,%,$($(1)_DIR))),
"source_dir": $(call mk-json-str,$(patsubst $(CONFIG_DIR)/%,%,$($(1)_DIR))),
"build_dir": $(call mk-json-str,$(patsubst $(CONFIG_DIR)/%,%,$($(1)_BUILDDIR))),
$(if $(filter target,$($(1)_TYPE)), \
"install_target": $(call yesno-to-bool,$($(1)_INSTALL_TARGET))$(comma) \
"install_staging": $(call yesno-to-bool,$($(1)_INSTALL_STAGING))$(comma) \
"install_images": $(call yesno-to-bool,$($(1)_INSTALL_IMAGES))$(comma) \
)
"dependencies": [
$(call make-comma-list, \
$(foreach dep,$(sort $($(1)_FINAL_ALL_DEPENDENCIES)), \
$(call mk-json-str,$(dep)) \
) \
)
],
"reverse_dependencies": [
$(call make-comma-list, \
$(foreach dep,$(sort $($(1)_RDEPENDENCIES)), \
$(call mk-json-str,$(dep)) \
) \
)
]
$(if $($(1)_CPE_ID_VALID), \
$(comma) "cpe-id": $(call mk-json-str,$($(1)_CPE_ID)) \
)
$(if $($(1)_IGNORE_CVES),
$(comma) "ignore_cves": [
$(call make-comma-list, \
$(foreach cve,$(sort $($(1)_IGNORE_CVES)), \
$(call mk-json-str,$(cve)) \
) \
)
]
)
endef
define _json-info-pkg-details
"version": $(call mk-json-str,$($(1)_DL_VERSION)),
"licenses": $(call mk-json-str,$($(1)_LICENSE)),
"license_files": [
$(foreach f, $($(1)_LICENSE_FILES),$(call mk-json-str,$(f))$(comma))
],
"redistributable": $(if $(filter NO,$($(1)_REDISTRIBUTE)),false,true),
"dl_dir": $(call mk-json-str,$($(1)_DL_SUBDIR)),
"downloads": [
$(foreach dl,$(sort $($(1)_ALL_DOWNLOADS)),
{
"source": $(call mk-json-str,$(notdir $(dl))),
"uris": [
$(call make-comma-list, \
$(foreach uri,$(call DOWNLOAD_URIS,$(dl),$(1)), \
$(call mk-json-str,$(subst \|,|,$(uri))) \
) \
)
]
},
)
],
endef
define _json-info-fs
"image_name": $(if $($(1)_FINAL_IMAGE_NAME), \
$(call mk-json-str,$($(1)_FINAL_IMAGE_NAME)), \
null \
),
"dependencies": [
$(call make-comma-list, \
$(foreach dep,$(sort $($(1)_DEPENDENCIES)), \
$(call mk-json-str,$(dep)) \
) \
)
]
endef
# clean-json -- cleanup pseudo-json into clean json:
# - remove commas before closing ] and }
# - minify with $(strip)
clean-json = $(strip \
$(subst $(comma)},}, $(subst $(comma)$(space)},$(space)}, \
$(subst $(comma)],], $(subst $(comma)$(space)],$(space)], \
$(strip $(1)) \
)))) \
)
# mk-json-str -- escape and double-quote a string to make it a valid json string
# - escape \
# - escape "
# - escape \n
# - escape \t
# - escape ESC
# - escape SPACE (so that we can $(strip) a JSON blurb without squashing multiple spaces)
# This unfortunately has to be on a single line...
mk-json-str = "$(subst $(space),\u0020,$(subst $(escape),\u001b,$(subst $(tab),\t,$(subst $(sep),\n,$(subst ",\",$(subst \,\\,$(1)))))))"
# )))))" # Syntax colouring
ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
# rsync the contents of per-package directories
# $1: space-separated list of packages to rsync from
# $2: 'host' or 'target'
# $3: destination directory
# $4: literal "copy" or "hardlink" to copy or hardlink files from src to dest
define per-package-rsync
mkdir -p $(3)
$(if $(filter hardlink,$(4)), \
$(foreach pkg,$(1),\
rsync -a --hard-links --link-dest=$(PER_PACKAGE_DIR)/$(pkg)/$(2)/ \
$(PER_PACKAGE_DIR)/$(pkg)/$(2)/ $(3)$(sep)), \
printf "%s/$(2)/\n" $(1) | tac \
| rsync -a --hard-links --files-from=- --no-R -r $(PER_PACKAGE_DIR) $(3))
endef
# prepares the per-package HOST_DIR and TARGET_DIR of the current
# package, by rsync the host and target directories of the
# dependencies of this package. The list of dependencies is passed as
# argument, so that this function can be used to prepare with
# different set of dependencies (download, extract, configure, etc.)
#
# $1: space-separated list of packages to rsync from
define prepare-per-package-directory
$(call per-package-rsync,$(1),host,$(HOST_DIR),hardlink)
$(call per-package-rsync,$(1),target,$(TARGET_DIR),hardlink)
endef
# Ensure files like .la, .pc, .pri, .cmake, and so on, point to the
# proper staging and host directories for the current package: find
# all text files that contain the PPD root, and replace it with the
# current package's PPD.
# $1: destination root directory containing host and staging
define ppd-fixup-paths
$(Q)grep --binary-files=without-match -lrZ '$(PER_PACKAGE_DIR)/[^/]\+/' $(HOST_DIR) \
|while read -d '' f; do \
file -b --mime-type "$${f}" | grep -q '^text/' || continue; \
printf '%s\0' "$${f}"; \
done \
|xargs -0 --no-run-if-empty \
$(SED) 's:$(PER_PACKAGE_DIR)/[^/]\+/:$(1)/:g'
endef
endif
#
# legal-info helper functions
#
LEGAL_INFO_SEPARATOR = "::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::"
define legal-warning # text
echo "WARNING: $(1)" >>$(LEGAL_WARNINGS)
endef
define legal-warning-pkg # pkg, text
echo "WARNING: $(1): $(2)" >>$(LEGAL_WARNINGS)
endef
define legal-warning-nosource # pkg, {local|override}
$(call legal-warning-pkg,$(1),sources not saved ($(2) packages not handled))
endef
define legal-manifest # {HOST|TARGET}, pkg, version, license, license-files, source, url, dependencies
echo '"$(2)","$(3)","$(4)","$(5)","$(6)","$(7)","$(8)"' >>$(LEGAL_MANIFEST_CSV_$(1))
endef
define legal-license-file # {HOST|TARGET}, pkgname, pkgname-pkgver, filename, file-fullpath, pkg-hashfiles
mkdir -p $(LICENSE_FILES_DIR_$(1))/$(3)/$(dir $(4)) && \
{ \
support/download/check-hash $(5) $(4) $(6); \
case $${?} in (0|3) ;; (*) exit 1;; esac; \
} && \
cp $(5) $(LICENSE_FILES_DIR_$(1))/$(3)/$(4)
endef
non-virtual-deps = $(foreach p,$(1),$(if $($(call UPPERCASE,$(p))_IS_VIRTUAL),,$(p)))
# Returns the list of recursive dependencies and their licensing terms
# for the package specified in parameter (in lowercase). If that
# package is a target package, remove host packages from the list.
legal-deps = \
$(foreach p,\
$(filter-out $(if $(1:host-%=),host-%),\
$(call non-virtual-deps,\
$($(call UPPERCASE,$(1))_FINAL_RECURSIVE_DEPENDENCIES))),$(p) [$($(call UPPERCASE,$(p))_LICENSE)])
# Helper for self-extracting binaries distributed by NXP, and
# formerlly Freescale.
#
# The --force option makes sure it doesn't fail if the source
# directory already exists. The --auto-accept skips the license check,
# as it is not needed in Buildroot because we have legal-info. Since
# there's a EULA in the binary file, we extract it in this macro, and
# it should therefore be added to the LICENSE_FILES variable of
# packages using this macro. Also, remember to set REDISTRIBUTE to
# "NO". Indeed, this is a legal minefield: the EULA specifies that the
# Board Support Package includes software and hardware (sic!) for
# which a separate license is needed...
#
# $(1): full path to the archive file
#
define NXP_EXTRACT_HELPER
awk 'BEGIN { start = 0; } \
/^EOEULA/ { start = 0; } \
{ if (start) print; } \
/<<EOEULA/ { start = 1; }' \
$(1) > $(@D)/EULA
cd $(@D) && sh $(1) --force --auto-accept
find $(@D)/$(basename $(notdir $(1))) -mindepth 1 -maxdepth 1 -exec mv {} $(@D) \;
rmdir $(@D)/$(basename $(notdir $(1)))
endef