poky/meta/classes-recipe/native.bbclass
Richard Purdie bdb5e99854 classes/lib: Switch classextend to use new filter API
Currently, class extensions are implmented using shadow variables and
access indirection which is horribly ineffient and ugly.

Switch to using the new bitbake filter API, which allows a translation
of the variable before the expanded value is returned. This allows us
to drop the shadow variable accesses. It also avoids the need to iterate
PACKAGES and make many variable changes since a filter against RDEPENDS
applies to RDEPENDS:${PN} and all of it's other overridden values.

Since data expansion happens at access, it also avoids many of the race
conditions this code has tranditionally been plagued with.

(From OE-Core rev: 24a9858a8927e91d499ee342ed93a0dbb44d83bc)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-08-12 10:05:11 +01:00

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#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: MIT
#
# We want native packages to be relocatable
inherit relocatable
# Native packages are built indirectly via dependency,
# no need for them to be a direct target of 'world'
EXCLUDE_FROM_WORLD = "1"
PACKAGE_ARCH = "${BUILD_ARCH}"
# used by cmake class
OECMAKE_RPATH = "${libdir}"
OECMAKE_RPATH:class-native = "${libdir}"
TARGET_ARCH = "${BUILD_ARCH}"
TARGET_OS = "${BUILD_OS}"
TARGET_VENDOR = "${BUILD_VENDOR}"
TARGET_PREFIX = "${BUILD_PREFIX}"
TARGET_CC_ARCH = "${BUILD_CC_ARCH}"
TARGET_LD_ARCH = "${BUILD_LD_ARCH}"
TARGET_AS_ARCH = "${BUILD_AS_ARCH}"
TARGET_CPPFLAGS = "${BUILD_CPPFLAGS}"
TARGET_CFLAGS = "${BUILD_CFLAGS}"
TARGET_CXXFLAGS = "${BUILD_CXXFLAGS}"
TARGET_LDFLAGS = "${BUILD_LDFLAGS}"
TARGET_FPU = ""
TUNE_FEATURES = ""
ABIEXTENSION = ""
HOST_ARCH = "${BUILD_ARCH}"
HOST_OS = "${BUILD_OS}"
HOST_VENDOR = "${BUILD_VENDOR}"
HOST_PREFIX = "${BUILD_PREFIX}"
HOST_CC_ARCH = "${BUILD_CC_ARCH}"
HOST_LD_ARCH = "${BUILD_LD_ARCH}"
HOST_AS_ARCH = "${BUILD_AS_ARCH}"
STAGING_BINDIR = "${STAGING_BINDIR_NATIVE}"
STAGING_BINDIR_CROSS = "${STAGING_BINDIR_NATIVE}"
# native pkg doesn't need the TOOLCHAIN_OPTIONS.
TOOLCHAIN_OPTIONS = ""
# Don't build ptest natively
PTEST_ENABLED = "0"
# Don't use site files for native builds
export CONFIG_SITE = "${COREBASE}/meta/site/native"
# set the compiler as well. It could have been set to something else
CC = "${BUILD_CC}"
CXX = "${BUILD_CXX}"
FC = "${BUILD_FC}"
CPP = "${BUILD_CPP}"
LD = "${BUILD_LD}"
CCLD = "${BUILD_CCLD}"
AR = "${BUILD_AR}"
AS = "${BUILD_AS}"
RANLIB = "${BUILD_RANLIB}"
STRIP = "${BUILD_STRIP}"
NM = "${BUILD_NM}"
OBJCOPY = "${BUILD_OBJCOPY}"
OBJDUMP = "${BUILD_OBJDUMP}"
READELF = "${BUILD_READELF}"
# Path prefixes
base_prefix = "${STAGING_DIR_NATIVE}"
prefix = "${STAGING_DIR_NATIVE}${prefix_native}"
exec_prefix = "${STAGING_DIR_NATIVE}${prefix_native}"
bindir = "${STAGING_BINDIR_NATIVE}"
sbindir = "${STAGING_SBINDIR_NATIVE}"
base_libdir = "${STAGING_BASE_LIBDIR_NATIVE}"
libdir = "${STAGING_LIBDIR_NATIVE}"
includedir = "${STAGING_INCDIR_NATIVE}"
sysconfdir = "${STAGING_ETCDIR_NATIVE}"
datadir = "${STAGING_DATADIR_NATIVE}"
baselib = "lib"
export lt_cv_sys_lib_dlsearch_path_spec = "${libdir} ${base_libdir} /lib /lib64 /usr/lib /usr/lib64"
NATIVE_PACKAGE_PATH_SUFFIX ?= ""
bindir .= "${NATIVE_PACKAGE_PATH_SUFFIX}"
sbindir .= "${NATIVE_PACKAGE_PATH_SUFFIX}"
base_libdir .= "${NATIVE_PACKAGE_PATH_SUFFIX}"
libdir .= "${NATIVE_PACKAGE_PATH_SUFFIX}"
libexecdir .= "${NATIVE_PACKAGE_PATH_SUFFIX}"
do_populate_sysroot[sstate-inputdirs] = "${SYSROOT_DESTDIR}/${STAGING_DIR_NATIVE}/"
do_populate_sysroot[sstate-outputdirs] = "${COMPONENTS_DIR}/${PACKAGE_ARCH}/${PN}"
# Since we actually install these into situ there is no staging prefix
STAGING_DIR_HOST = ""
STAGING_DIR_TARGET = ""
PKG_CONFIG_DIR = "${libdir}/pkgconfig"
EXTRA_NATIVE_PKGCONFIG_PATH ?= ""
PKG_CONFIG_PATH .= "${EXTRA_NATIVE_PKGCONFIG_PATH}"
PKG_CONFIG_SYSROOT_DIR = ""
PKG_CONFIG_SYSTEM_LIBRARY_PATH[unexport] = "1"
PKG_CONFIG_SYSTEM_INCLUDE_PATH[unexport] = "1"
# we dont want libc-*libc to kick in for native recipes
LIBCOVERRIDE = ""
CLASSOVERRIDE = "class-native"
MACHINEOVERRIDES = ""
MACHINE_FEATURES = ""
PATH:prepend = "${COREBASE}/scripts/native-intercept:"
# This class encodes staging paths into its scripts data so can only be
# reused if we manipulate the paths.
SSTATE_SCAN_CMD ?= "${SSTATE_SCAN_CMD_NATIVE}"
# No strip sysroot when DEBUG_BUILD is enabled
INHIBIT_SYSROOT_STRIP ?= "${@oe.utils.vartrue('DEBUG_BUILD', '1', '', d)}"
python native_virtclass_handler () {
import re
pn = e.data.getVar("PN")
if not pn.endswith("-native"):
return
bpn = e.data.getVar("BPN")
# Set features here to prevent appends and distro features backfill
# from modifying native distro features
features = set(d.getVar("DISTRO_FEATURES_NATIVE").split())
filtered = set(bb.utils.filter("DISTRO_FEATURES", d.getVar("DISTRO_FEATURES_FILTER_NATIVE"), d).split())
d.setVar("DISTRO_FEATURES", " ".join(sorted(features | filtered)))
classextend = e.data.getVar('BBCLASSEXTEND') or ""
if "native" not in classextend:
return
def map_dependencies(varname, d, suffix, selfref=True, regex=False):
varname = varname + ":" + suffix
# Handle ${PN}-xxx -> ${BPN}-xxx-native
if suffix != "${PN}" and "${PN}" in suffix:
output_varname = varname.replace("${PN}", "${BPN}") + "-native"
d.renameVar(varname, output_varname)
d.setVarFilter("DEPENDS", "native_filter(val, '" + pn + "', '" + bpn + "', selfref=False)")
for varname in ["RDEPENDS", "RRECOMMENDS", "RSUGGESTS", "RPROVIDES", "RREPLACES"]:
d.setVarFilter(varname, "native_filter(val, '" + pn + "', '" + bpn + "')")
# We need to handle things like ${@bb.utils.contains('PTEST_ENABLED', '1', '${PN}-ptest', '', d)}
# and not pass ${PN}-test since in the native case it would be ignored. This does mean we ignore
# anonymous python derived PACKAGES entries.
for pkg in re.split(r"\${@(?:{.*?}|.)+?}|\s", d.getVar("PACKAGES", False)):
if not pkg:
continue
map_dependencies("RDEPENDS", e.data, pkg)
map_dependencies("RRECOMMENDS", e.data, pkg)
map_dependencies("RSUGGESTS", e.data, pkg)
map_dependencies("RPROVIDES", e.data, pkg)
map_dependencies("RREPLACES", e.data, pkg)
d.setVarFilter("PACKAGES", "native_filter(val, '" + pn + "', '" + bpn + "')")
d.setVarFilter("PACKAGES_DYNAMIC", "native_filter(val, '" + pn + "', '" + bpn + "', regex=True)")
provides = e.data.getVar("PROVIDES")
nprovides = []
for prov in provides.split():
if prov.find(pn) != -1:
nprovides.append(prov)
elif not prov.endswith("-native"):
nprovides.append(prov + "-native")
else:
nprovides.append(prov)
e.data.setVar("PROVIDES", ' '.join(nprovides))
}
addhandler native_virtclass_handler
native_virtclass_handler[eventmask] = "bb.event.RecipePreFinalise"
python do_addto_recipe_sysroot () {
bb.build.exec_func("extend_recipe_sysroot", d)
}
addtask addto_recipe_sysroot after do_populate_sysroot
do_addto_recipe_sysroot[deptask] = "do_populate_sysroot"
inherit nopackages
do_packagedata[stamp-extra-info] = ""
USE_NLS = "no"
RECIPERDEPTASK = "do_populate_sysroot"
do_populate_sysroot[rdeptask] = "${RECIPERDEPTASK}"
#
# Native task outputs are directly run on the target (host) system after being
# built. Even if the output of this recipe doesn't change, a change in one of
# its dependencies may cause a change in the output it generates (e.g. rpm
# output depends on the output of its dependent zstd library).
#
# This can cause poor interactions with hash equivalence, since this recipes
# output-changing dependency is "hidden" and downstream task only see that this
# recipe has the same outhash and therefore is equivalent. This can result in
# different output in different cases.
#
# To resolve this, unhide the output-changing dependency by adding its unihash
# to this tasks outhash calculation. Unfortunately, don't know specifically
# know which dependencies are output-changing, so we have to add all of them.
#
python native_add_do_populate_sysroot_deps () {
current_task = "do_" + d.getVar("BB_CURRENTTASK")
if current_task != "do_populate_sysroot":
return
taskdepdata = d.getVar("BB_TASKDEPDATA", False)
pn = d.getVar("PN")
deps = {
dep[0]:dep[6] for dep in taskdepdata.values() if
dep[1] == current_task and dep[0] != pn
}
d.setVar("HASHEQUIV_EXTRA_SIGDATA", "\n".join("%s: %s" % (k, deps[k]) for k in sorted(deps.keys())))
}
SSTATECREATEFUNCS += "native_add_do_populate_sysroot_deps"