63 files changed, 5977 insertions, 0 deletions

diff --git a/meta/classes/cargo.bbclass b/meta/classes/cargo.bbclass
new file mode 100644
index 0000000000..0ca38143c0
--- /dev/null
+++ b/meta/classes/cargo.bbclass
@@ -0,0 +1,89 @@
+##
+## Purpose:
+## This class is used by any recipes that are built using
+## Cargo.
+
+inherit cargo_common
+
+# the binary we will use
+CARGO = "cargo"
+
+# We need cargo to compile for the target
+BASEDEPENDS:append = " cargo-native"
+
+# Ensure we get the right rust variant
+DEPENDS:append:class-target = " virtual/${TARGET_PREFIX}rust ${RUSTLIB_DEP}"
+DEPENDS:append:class-native = " rust-native"
+
+# Enable build separation
+B = "${WORKDIR}/build"
+
+# In case something fails in the build process, give a bit more feedback on
+# where the issue occured
+export RUST_BACKTRACE = "1"
+
+# The directory of the Cargo.toml relative to the root directory, per default
+# assume there's a Cargo.toml directly in the root directory
+CARGO_SRC_DIR ??= ""
+
+# The actual path to the Cargo.toml
+MANIFEST_PATH ??= "${S}/${CARGO_SRC_DIR}/Cargo.toml"
+
+RUSTFLAGS ??= ""
+BUILD_MODE = "${@['--release', ''][d.getVar('DEBUG_BUILD') == '1']}"
+CARGO_BUILD_FLAGS = "-v --target ${HOST_SYS} ${BUILD_MODE} --manifest-path=${MANIFEST_PATH}"
+
+# This is based on the content of CARGO_BUILD_FLAGS and generally will need to
+# change if CARGO_BUILD_FLAGS changes.
+BUILD_DIR = "${@['release', 'debug'][d.getVar('DEBUG_BUILD') == '1']}"
+CARGO_TARGET_SUBDIR="${HOST_SYS}/${BUILD_DIR}"
+oe_cargo_build () {
+        export RUSTFLAGS="${RUSTFLAGS}"
+        export RUST_TARGET_PATH="${RUST_TARGET_PATH}"
+        bbnote "cargo = $(which ${CARGO})"
+        bbnote "rustc = $(which ${RUSTC})"
+        bbnote "${CARGO} build ${CARGO_BUILD_FLAGS} $@"
+        "${CARGO}" build ${CARGO_BUILD_FLAGS} "$@"
+}
+
+do_compile[progress] = "outof:\s+(\d+)/(\d+)"
+cargo_do_compile () {
+        oe_cargo_fix_env
+        oe_cargo_build
+}
+
+cargo_do_install () {
+        local have_installed=false
+        for tgt in "${B}/target/${CARGO_TARGET_SUBDIR}/"*; do
+                case $tgt in
+                *.so|*.rlib)
+                        install -d "${D}${rustlibdir}"
+                        install -m755 "$tgt" "${D}${rustlibdir}"
+                        have_installed=true
+                        ;;
+                *examples)
+                        if [ -d "$tgt" ]; then
+                                for example in "$tgt/"*; do
+                                        if [ -f "$example" ] && [ -x "$example" ]; then
+                                                install -d "${D}${bindir}"
+                                                install -m755 "$example" "${D}${bindir}"
+                                                have_installed=true
+                                        fi
+                                done
+                        fi
+                        ;;
+                *)
+                        if [ -f "$tgt" ] && [ -x "$tgt" ]; then
+                                install -d "${D}${bindir}"
+                                install -m755 "$tgt" "${D}${bindir}"
+                                have_installed=true
+                        fi
+                        ;;
+                esac
+        done
+        if ! $have_installed; then
+                die "Did not find anything to install"
+        fi
+}
+
+EXPORT_FUNCTIONS do_compile do_install
diff --git a/meta/classes/cargo_common.bbclass b/meta/classes/cargo_common.bbclass
new file mode 100644
index 0000000000..b0b039a22e
--- /dev/null
+++ b/meta/classes/cargo_common.bbclass
@@ -0,0 +1,129 @@
+##
+## Purpose:
+## This class is to support building with cargo. It
+## must be different than cargo.bbclass because Rust
+## now builds with Cargo but cannot use cargo.bbclass
+## due to dependencies and assumptions in cargo.bbclass
+## that Rust & Cargo are already installed. So this
+## is used by cargo.bbclass and Rust
+##
+
+# add crate fetch support
+inherit crate-fetch
+inherit rust-common
+
+# Where we download our registry and dependencies to
+export CARGO_HOME = "${WORKDIR}/cargo_home"
+
+# The pkg-config-rs library used by cargo build scripts disables itself when
+# cross compiling unless this is defined. We set up pkg-config appropriately
+# for cross compilation, so tell it we know better than it.
+export PKG_CONFIG_ALLOW_CROSS = "1"
+
+# Don't instruct cargo to use crates downloaded by bitbake. Some rust packages,
+# for example the rust compiler itself, come with their own vendored sources.
+# Specifying two [source.crates-io] will not work.
+CARGO_DISABLE_BITBAKE_VENDORING ?= "0"
+
+# Used by libstd-rs to point to the vendor dir included in rustc src
+CARGO_VENDORING_DIRECTORY ?= "${CARGO_HOME}/bitbake"
+
+CARGO_RUST_TARGET_CCLD ?= "${RUST_TARGET_CCLD}"
+cargo_common_do_configure () {
+        mkdir -p ${CARGO_HOME}/bitbake
+
+        cat <<- EOF > ${CARGO_HOME}/config
+        # EXTRA_OECARGO_PATHS
+        paths = [
+        $(for p in ${EXTRA_OECARGO_PATHS}; do echo \"$p\",; done)
+        ]
+        EOF
+
+        cat <<- EOF >> ${CARGO_HOME}/config
+
+        # Local mirror vendored by bitbake
+        [source.bitbake]
+        directory = "${CARGO_VENDORING_DIRECTORY}"
+        EOF
+
+        if [ -z "${EXTERNALSRC}" ] && [ ${CARGO_DISABLE_BITBAKE_VENDORING} = "0" ]; then
+                cat <<- EOF >> ${CARGO_HOME}/config
+
+                [source.crates-io]
+                replace-with = "bitbake"
+                local-registry = "/nonexistant"
+                EOF
+        fi
+
+        cat <<- EOF >> ${CARGO_HOME}/config
+
+        [http]
+        # Multiplexing can't be enabled because http2 can't be enabled
+        # in curl-native without dependency loops
+        multiplexing = false
+
+        # Ignore the hard coded and incorrect path to certificates
+        cainfo = "${STAGING_ETCDIR_NATIVE}/ssl/certs/ca-certificates.crt"
+
+        EOF
+
+        if [ -n "${http_proxy}" ]; then
+                echo "proxy = \"${http_proxy}\"" >> ${CARGO_HOME}/config
+        fi
+
+        cat <<- EOF >> ${CARGO_HOME}/config
+
+        # HOST_SYS
+        [target.${HOST_SYS}]
+        linker = "${CARGO_RUST_TARGET_CCLD}"
+        EOF
+
+        if [ "${HOST_SYS}" != "${BUILD_SYS}" ]; then
+                cat <<- EOF >> ${CARGO_HOME}/config
+
+                # BUILD_SYS
+                [target.${BUILD_SYS}]
+                linker = "${RUST_BUILD_CCLD}"
+                EOF
+        fi
+
+        # Put build output in build directory preferred by bitbake instead of
+        # inside source directory unless they are the same
+        if [ "${B}" != "${S}" ]; then
+                cat <<- EOF >> ${CARGO_HOME}/config
+
+                [build]
+                # Use out of tree build destination to avoid poluting the source tree
+                target-dir = "${B}/target"
+                EOF
+        fi
+
+        cat <<- EOF >> ${CARGO_HOME}/config
+
+        [term]
+        progress.when = 'always'
+        progress.width = 80
+        EOF
+}
+
+oe_cargo_fix_env () {
+        export CC="${RUST_TARGET_CC}"
+        export CXX="${RUST_TARGET_CXX}"
+        export CFLAGS="${CFLAGS}"
+        export CXXFLAGS="${CXXFLAGS}"
+        export AR="${AR}"
+        export TARGET_CC="${RUST_TARGET_CC}"
+        export TARGET_CXX="${RUST_TARGET_CXX}"
+        export TARGET_CFLAGS="${CFLAGS}"
+        export TARGET_CXXFLAGS="${CXXFLAGS}"
+        export TARGET_AR="${AR}"
+        export HOST_CC="${RUST_BUILD_CC}"
+        export HOST_CXX="${RUST_BUILD_CXX}"
+        export HOST_CFLAGS="${BUILD_CFLAGS}"
+        export HOST_CXXFLAGS="${BUILD_CXXFLAGS}"
+        export HOST_AR="${BUILD_AR}"
+}
+
+EXTRA_OECARGO_PATHS ??= ""
+
+EXPORT_FUNCTIONS do_configure
diff --git a/meta/classes/crate-fetch.bbclass b/meta/classes/crate-fetch.bbclass
new file mode 100644
index 0000000000..c0ed434a96
--- /dev/null
+++ b/meta/classes/crate-fetch.bbclass
@@ -0,0 +1,13 @@
+#
+# crate-fetch class
+#
+# Registers 'crate' method for Bitbake fetch2.
+#
+# Adds support for following format in recipe SRC_URI:
+# crate://<packagename>/<version>
+#
+
+python () {
+        import crate
+        bb.fetch2.methods.append( crate.Crate() )
+}
diff --git a/meta/classes/rust-bin.bbclass b/meta/classes/rust-bin.bbclass
new file mode 100644
index 0000000000..c87343b3cf
--- /dev/null
+++ b/meta/classes/rust-bin.bbclass
@@ -0,0 +1,149 @@
+inherit rust
+
+RDEPENDS:${PN}:append:class-target = " ${RUSTLIB_DEP}"
+
+RUSTC_ARCHFLAGS += "-C opt-level=3 -g -L ${STAGING_DIR_HOST}/${rustlibdir} -C linker=${RUST_TARGET_CCLD}"
+EXTRA_OEMAKE += 'RUSTC_ARCHFLAGS="${RUSTC_ARCHFLAGS}"'
+
+# Some libraries alias with the standard library but libstd is configured to
+# make it difficult or imposisble to use its version. Unfortunately libstd
+# must be explicitly overridden using extern.
+OVERLAP_LIBS = "\
+    libc \
+    log \
+    getopts \
+    rand \
+"
+def get_overlap_deps(d):
+    deps = d.getVar("DEPENDS").split()
+    overlap_deps = []
+    for o in d.getVar("OVERLAP_LIBS").split():
+        l = len([o for dep in deps if (o + '-rs' in dep)])
+        if l > 0:
+            overlap_deps.append(o)
+    return " ".join(overlap_deps)
+OVERLAP_DEPS = "${@get_overlap_deps(d)}"
+
+# Prevents multiple static copies of standard library modules
+# See https://github.com/rust-lang/rust/issues/19680
+RUSTC_PREFER_DYNAMIC = "-C prefer-dynamic"
+RUSTC_FLAGS += "${RUSTC_PREFER_DYNAMIC}"
+
+CRATE_NAME ?= "${@d.getVar('BPN').replace('-rs', '').replace('-', '_')}"
+BINNAME ?= "${BPN}"
+LIBNAME ?= "lib${CRATE_NAME}-rs"
+CRATE_TYPE ?= "dylib"
+BIN_SRC ?= "${S}/src/main.rs"
+LIB_SRC ?= "${S}/src/lib.rs"
+
+rustbindest ?= "${bindir}"
+rustlibdest ?= "${rustlibdir}"
+RUST_RPATH_ABS ?= "${rustlibdir}:${rustlib}"
+
+def relative_rpaths(paths, base):
+    relpaths = set()
+    for p in paths.split(':'):
+        if p == base:
+            relpaths.add('$ORIGIN')
+            continue
+        relpaths.add(os.path.join('$ORIGIN', os.path.relpath(p, base)))
+    return '-rpath=' + ':'.join(relpaths) if len(relpaths) else ''
+
+RUST_LIB_RPATH_FLAGS ?= "${@relative_rpaths(d.getVar('RUST_RPATH_ABS', True), d.getVar('rustlibdest', True))}"
+RUST_BIN_RPATH_FLAGS ?= "${@relative_rpaths(d.getVar('RUST_RPATH_ABS', True), d.getVar('rustbindest', True))}"
+
+def libfilename(d):
+    if d.getVar('CRATE_TYPE', True) == 'dylib':
+        return d.getVar('LIBNAME', True) + '.so'
+    else:
+        return d.getVar('LIBNAME', True) + '.rlib'
+
+def link_args(d, bin):
+    linkargs = []
+    if bin:
+        rpaths = d.getVar('RUST_BIN_RPATH_FLAGS', False)
+    else:
+        rpaths = d.getVar('RUST_LIB_RPATH_FLAGS', False)
+        if d.getVar('CRATE_TYPE', True) == 'dylib':
+            linkargs.append('-soname')
+            linkargs.append(libfilename(d))
+    if len(rpaths):
+        linkargs.append(rpaths)
+    if len(linkargs):
+        return ' '.join(['-Wl,' + arg for arg in linkargs])
+    else:
+        return ''
+
+get_overlap_externs () {
+    externs=
+    for dep in ${OVERLAP_DEPS}; do
+        extern=$(ls ${STAGING_DIR_HOST}/${rustlibdir}/lib$dep-rs.{so,rlib} 2>/dev/null \
+                    | awk '{print $1}');
+        if [ -n "$extern" ]; then
+            externs="$externs --extern $dep=$extern"
+        else
+            echo "$dep in depends but no such library found in ${rustlibdir}!" >&2
+            exit 1
+        fi
+    done
+    echo "$externs"
+}
+
+do_configure () {
+}
+
+oe_runrustc () {
+        export RUST_TARGET_PATH="${RUST_TARGET_PATH}"
+        bbnote ${RUSTC} ${RUSTC_ARCHFLAGS} ${RUSTC_FLAGS} "$@"
+        "${RUSTC}" ${RUSTC_ARCHFLAGS} ${RUSTC_FLAGS} "$@"
+}
+
+oe_compile_rust_lib () {
+    rm -rf ${LIBNAME}.{rlib,so}
+    local -a link_args
+    if [ -n '${@link_args(d, False)}' ]; then
+        link_args[0]='-C'
+        link_args[1]='link-args=${@link_args(d, False)}'
+    fi
+    oe_runrustc $(get_overlap_externs) \
+        "${link_args[@]}" \
+        ${LIB_SRC} \
+        -o ${@libfilename(d)} \
+        --crate-name=${CRATE_NAME} --crate-type=${CRATE_TYPE} \
+        "$@"
+}
+oe_compile_rust_lib[vardeps] += "get_overlap_externs"
+
+oe_compile_rust_bin () {
+    rm -rf ${BINNAME}
+    local -a link_args
+    if [ -n '${@link_args(d, True)}' ]; then
+        link_args[0]='-C'
+        link_args[1]='link-args=${@link_args(d, True)}'
+    fi
+    oe_runrustc $(get_overlap_externs) \
+        "${link_args[@]}" \
+        ${BIN_SRC} -o ${BINNAME} "$@"
+}
+oe_compile_rust_bin[vardeps] += "get_overlap_externs"
+
+oe_install_rust_lib () {
+    for lib in $(ls ${LIBNAME}.{so,rlib} 2>/dev/null); do
+        echo Installing $lib
+        install -D -m 755 $lib ${D}/${rustlibdest}/$lib
+    done
+}
+
+oe_install_rust_bin () {
+    echo Installing ${BINNAME}
+    install -D -m 755 ${BINNAME} ${D}/${rustbindest}/${BINNAME}
+}
+
+do_rust_bin_fixups() {
+    for f in `find ${PKGD} -name '*.so*'`; do
+        echo "Strip rust note: $f"
+        ${OBJCOPY} -R .note.rustc $f $f
+    done
+}
+PACKAGE_PREPROCESS_FUNCS += "do_rust_bin_fixups"
+
diff --git a/meta/classes/rust-common.bbclass b/meta/classes/rust-common.bbclass
new file mode 100644
index 0000000000..2093654ac6
--- /dev/null
+++ b/meta/classes/rust-common.bbclass
@@ -0,0 +1,174 @@
+# Common variables used by all Rust builds
+export rustlibdir = "${libdir}/rust"
+FILES:${PN} += "${rustlibdir}/*.so"
+FILES:${PN}-dev += "${rustlibdir}/*.rlib ${rustlibdir}/*.rmeta"
+FILES:${PN}-dbg += "${rustlibdir}/.debug"
+
+RUSTLIB = "-L ${STAGING_LIBDIR}/rust"
+RUST_DEBUG_REMAP = "--remap-path-prefix=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}"
+RUSTFLAGS += "${RUSTLIB} ${RUST_DEBUG_REMAP}"
+RUSTLIB_DEP ?= "libstd-rs"
+RUST_TARGET_PATH = "${STAGING_LIBDIR_NATIVE}/rustlib"
+RUST_PANIC_STRATEGY ?= "unwind"
+
+# Native builds are not effected by TCLIBC. Without this, rust-native
+# thinks it's "target" (i.e. x86_64-linux) is a musl target.
+RUST_LIBC = "${TCLIBC}"
+RUST_LIBC:class-native = "glibc"
+
+def determine_libc(d, thing):
+    '''Determine which libc something should target'''
+
+    # BUILD is never musl, TARGET may be musl or glibc,
+    # HOST could be musl, but only if a compiler is built to be run on
+    # target in which case HOST_SYS != BUILD_SYS.
+    if thing == 'TARGET':
+        libc = d.getVar('RUST_LIBC')
+    elif thing == 'BUILD' and (d.getVar('HOST_SYS') != d.getVar('BUILD_SYS')):
+        libc = d.getVar('RUST_LIBC')
+    else:
+        libc = d.getVar('RUST_LIBC:class-native')
+
+    return libc
+
+def target_is_armv7(d):
+    '''Determine if target is armv7'''
+    # TUNE_FEATURES may include arm* even if the target is not arm
+    # in the case of *-native packages
+    if d.getVar('TARGET_ARCH') != 'arm':
+        return False
+
+    feat = d.getVar('TUNE_FEATURES')
+    feat = frozenset(feat.split())
+    mach_overrides = d.getVar('MACHINEOVERRIDES')
+    mach_overrides = frozenset(mach_overrides.split(':'))
+
+    v7=frozenset(['armv7a', 'armv7r', 'armv7m', 'armv7ve'])
+    if mach_overrides.isdisjoint(v7) and feat.isdisjoint(v7):
+        return False
+    else:
+        return True
+
+# Responsible for taking Yocto triples and converting it to Rust triples
+def rust_base_triple(d, thing):
+    '''
+    Mangle bitbake's *_SYS into something that rust might support (see
+    rust/mk/cfg/* for a list)
+
+    Note that os is assumed to be some linux form
+    '''
+
+    # The llvm-target for armv7 is armv7-unknown-linux-gnueabihf
+    if thing == "TARGET" and target_is_armv7(d):
+        arch = "armv7"
+    else:
+        arch = d.getVar('{}_ARCH'.format(thing))
+
+    # All the Yocto targets are Linux and are 'unknown'
+    vendor = "-unknown"
+    os = d.getVar('{}_OS'.format(thing))
+    libc = determine_libc(d, thing)
+
+    # Prefix with a dash and convert glibc -> gnu
+    if libc == "glibc":
+        libc = "-gnu"
+    elif libc == "musl":
+        libc = "-musl"
+
+    # Don't double up musl (only appears to be the case on aarch64)
+    if os == "linux-musl":
+        if libc != "-musl":
+            bb.fatal("{}_OS was '{}' but TCLIBC was not 'musl'".format(thing, os))
+        os = "linux"
+
+    # This catches ARM targets and appends the necessary hard float bits
+    if os == "linux-gnueabi" or os == "linux-musleabi":
+        libc = bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', 'hf', '', d)
+    return arch + vendor + '-' + os + libc
+
+# Naming explanation
+# Yocto
+# - BUILD_SYS - Yocto triple of the build environment
+# - HOST_SYS - What we're building for in Yocto
+# - TARGET_SYS - What we're building for in Yocto
+#
+# So when building '-native' packages BUILD_SYS == HOST_SYS == TARGET_SYS
+# When building packages for the image HOST_SYS == TARGET_SYS
+# This is a gross over simplification as there are other modes but
+# currently this is all that's supported.
+#
+# Rust
+# - TARGET - the system where the binary will run
+# - HOST - the system where the binary is being built
+#
+# Rust additionally will use two additional cases:
+# - undecorated (e.g. CC) - equivalent to TARGET
+# - triple suffix (e.g. CC:x86_64_unknown_linux_gnu) - both
+#   see: https://github.com/alexcrichton/gcc-rs
+# The way that Rust's internal triples and Yocto triples are mapped together
+# its likely best to not use the triple suffix due to potential confusion.
+
+RUST_BUILD_SYS = "${@rust_base_triple(d, 'BUILD')}"
+RUST_HOST_SYS = "${@rust_base_triple(d, 'HOST')}"
+RUST_TARGET_SYS = "${@rust_base_triple(d, 'TARGET')}"
+
+# wrappers to get around the fact that Rust needs a single
+# binary but Yocto's compiler and linker commands have
+# arguments. Technically the archiver is always one command but
+# this is necessary for builds that determine the prefix and then
+# use those commands based on the prefix.
+WRAPPER_DIR = "${WORKDIR}/wrapper"
+RUST_BUILD_CC = "${WRAPPER_DIR}/build-rust-cc"
+RUST_BUILD_CXX = "${WRAPPER_DIR}/build-rust-cxx"
+RUST_BUILD_CCLD = "${WRAPPER_DIR}/build-rust-ccld"
+RUST_BUILD_AR = "${WRAPPER_DIR}/build-rust-ar"
+RUST_TARGET_CC = "${WRAPPER_DIR}/target-rust-cc"
+RUST_TARGET_CXX = "${WRAPPER_DIR}/target-rust-cxx"
+RUST_TARGET_CCLD = "${WRAPPER_DIR}/target-rust-ccld"
+RUST_TARGET_AR = "${WRAPPER_DIR}/target-rust-ar"
+
+create_wrapper () {
+        file="$1"
+        shift
+
+        cat <<- EOF > "${file}"
+        #!/bin/sh
+        exec $@ "\$@"
+        EOF
+        chmod +x "${file}"
+}
+
+export WRAPPER_TARGET_CC = "${CC}"
+export WRAPPER_TARGET_CXX = "${CXX}"
+export WRAPPER_TARGET_CCLD = "${CCLD}"
+export WRAPPER_TARGET_LDFLAGS = "${LDFLAGS}"
+export WRAPPER_TARGET_AR = "${AR}"
+
+# compiler is used by gcc-rs
+# linker is used by rustc/cargo
+# archiver is used by the build of libstd-rs
+do_rust_create_wrappers () {
+        mkdir -p "${WRAPPER_DIR}"
+
+        # Yocto Build / Rust Host C compiler
+        create_wrapper "${RUST_BUILD_CC}" "${BUILD_CC}"
+        # Yocto Build / Rust Host C++ compiler
+        create_wrapper "${RUST_BUILD_CXX}" "${BUILD_CXX}"
+        # Yocto Build / Rust Host linker
+        create_wrapper "${RUST_BUILD_CCLD}" "${BUILD_CCLD}" "${BUILD_LDFLAGS}"
+        # Yocto Build / Rust Host archiver
+        create_wrapper "${RUST_BUILD_AR}" "${BUILD_AR}"
+
+        # Yocto Target / Rust Target C compiler
+        create_wrapper "${RUST_TARGET_CC}" "${WRAPPER_TARGET_CC}"
+        # Yocto Target / Rust Target C++ compiler
+        create_wrapper "${RUST_TARGET_CXX}" "${WRAPPER_TARGET_CXX}"
+        # Yocto Target / Rust Target linker
+        create_wrapper "${RUST_TARGET_CCLD}" "${WRAPPER_TARGET_CCLD}" "${WRAPPER_TARGET_LDFLAGS}"
+        # Yocto Target / Rust Target archiver
+        create_wrapper "${RUST_TARGET_AR}" "${WRAPPER_TARGET_AR}"
+
+}
+
+addtask rust_create_wrappers before do_configure after do_patch
+do_rust_create_wrappers[dirs] += "${WRAPPER_DIR}"
diff --git a/meta/classes/rust.bbclass b/meta/classes/rust.bbclass
new file mode 100644
index 0000000000..5c8938d09f
--- /dev/null
+++ b/meta/classes/rust.bbclass
@@ -0,0 +1,45 @@
+inherit rust-common
+
+RUSTC = "rustc"
+
+RUSTC_ARCHFLAGS += "--target=${HOST_SYS} ${RUSTFLAGS}"
+
+def rust_base_dep(d):
+    # Taken from meta/classes/base.bbclass `base_dep_prepend` and modified to
+    # use rust instead of gcc
+    deps = ""
+    if not d.getVar('INHIBIT_DEFAULT_RUST_DEPS'):
+        if (d.getVar('HOST_SYS') != d.getVar('BUILD_SYS')):
+            deps += " virtual/${TARGET_PREFIX}rust ${RUSTLIB_DEP}"
+        else:
+            deps += " rust-native"
+    return deps
+
+DEPENDS:append = " ${@rust_base_dep(d)}"
+
+# BUILD_LDFLAGS
+#       ${STAGING_LIBDIR_NATIVE}
+#       ${STAGING_BASE_LIBDIR_NATIVE}
+# BUILDSDK_LDFLAGS
+#       ${STAGING_LIBDIR}
+#       #{STAGING_DIR_HOST}
+# TARGET_LDFLAGS ?????
+#RUSTC_BUILD_LDFLAGS = "\
+#       --sysroot ${STAGING_DIR_NATIVE} \
+#       -L${STAGING_LIBDIR_NATIVE}      \
+#       -L${STAGING_BASE_LIBDIR_NATIVE} \
+#"
+
+# XXX: for some reason bitbake sets BUILD_* & TARGET_* but uses the bare
+# variables for HOST. Alias things to make it easier for us.
+HOST_LDFLAGS  ?= "${LDFLAGS}"
+HOST_CFLAGS   ?= "${CFLAGS}"
+HOST_CXXFLAGS ?= "${CXXFLAGS}"
+HOST_CPPFLAGS ?= "${CPPFLAGS}"
+
+rustlib_suffix="${TUNE_ARCH}${TARGET_VENDOR}-${TARGET_OS}/rustlib/${HOST_SYS}/lib"
+# Native sysroot standard library path
+rustlib_src="${prefix}/lib/${rustlib_suffix}"
+# Host sysroot standard library path
+rustlib="${libdir}/${rustlib_suffix}"
+rustlib:class-native="${libdir}/rustlib/${BUILD_SYS}/lib"
diff --git a/meta/conf/distro/include/rust_security_flags.inc b/meta/conf/distro/include/rust_security_flags.inc
new file mode 100644
index 0000000000..590bef17a0
--- /dev/null
+++ b/meta/conf/distro/include/rust_security_flags.inc
@@ -0,0 +1,7 @@
+# Build errors with PIE options enabled
+SECURITY_CFLAGS:pn-rust-native = "${SECURITY_NO_PIE_CFLAGS}"
+SECURITY_CFLAGS:pn-rust-cross-${TARGET_ARCH} = "${SECURITY_NO_PIE_CFLAGS}"
+SECURITY_CFLAGS:pn-rust = "${SECURITY_NO_PIE_CFLAGS}"
+SECURITY_CFLAGS:pn-rust-llvm = "${SECURITY_NO_PIE_CFLAGS}"
+
+SECURITY_LDFLAGS:pn-rust-cross-arm = " -lssp_nonshared -lssp"
diff --git a/meta/conf/distro/include/rust_versions.inc b/meta/conf/distro/include/rust_versions.inc
new file mode 100644
index 0000000000..a11ba22a8f
--- /dev/null
+++ b/meta/conf/distro/include/rust_versions.inc
@@ -0,0 +1,13 @@
+# include this in your distribution to easily switch between versions
+# just by changing RUST_VERSION variable
+
+RUST_VERSION ?= "1.51.0"
+
+PREFERRED_VERSION_cargo ?= "${RUST_VERSION}"
+PREFERRED_VERSION_cargo-native ?= "${RUST_VERSION}"
+PREFERRED_VERSION_libstd-rs ?= "${RUST_VERSION}"
+PREFERRED_VERSION_rust ?= "${RUST_VERSION}"
+PREFERRED_VERSION_rust-cross-${TARGET_ARCH} ?= "${RUST_VERSION}"
+PREFERRED_VERSION_rust-llvm ?= "${RUST_VERSION}"
+PREFERRED_VERSION_rust-llvm-native ?= "${RUST_VERSION}"
+PREFERRED_VERSION_rust-native ?= "${RUST_VERSION}"
diff --git a/meta/lib/crate.py b/meta/lib/crate.py
new file mode 100644
index 0000000000..d10f441875
--- /dev/null
+++ b/meta/lib/crate.py
@@ -0,0 +1,149 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementation for crates.io
+"""
+
+# Copyright (C) 2016 Doug Goldstein
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import hashlib
+import json
+import os
+import shutil
+import subprocess
+import bb
+from   bb.fetch2 import logger, subprocess_setup, UnpackError
+from   bb.fetch2.wget import Wget
+
+
+class Crate(Wget):
+
+    """Class to fetch crates via wget"""
+
+    def _cargo_bitbake_path(self, rootdir):
+        return os.path.join(rootdir, "cargo_home", "bitbake")
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url is for this fetcher
+        """
+        return ud.type in ['crate']
+
+    def recommends_checksum(self, urldata):
+        return False
+
+    def urldata_init(self, ud, d):
+        """
+        Sets up to download the respective crate from crates.io
+        """
+
+        if ud.type == 'crate':
+            self._crate_urldata_init(ud, d)
+
+        super(Crate, self).urldata_init(ud, d)
+
+    def _crate_urldata_init(self, ud, d):
+        """
+        Sets up the download for a crate
+        """
+
+        # URL syntax is: crate://NAME/VERSION
+        # break the URL apart by /
+        parts = ud.url.split('/')
+        if len(parts) < 5:
+            raise bb.fetch2.ParameterError("Invalid URL: Must be crate://HOST/NAME/VERSION", ud.url)
+
+        # last field is version
+        version = parts[len(parts) - 1]
+        # second to last field is name
+        name = parts[len(parts) - 2]
+        # host (this is to allow custom crate registries to be specified
+        host = '/'.join(parts[2:len(parts) - 2])
+
+        # if using upstream just fix it up nicely
+        if host == 'crates.io':
+            host = 'crates.io/api/v1/crates'
+
+        ud.url = "https://%s/%s/%s/download" % (host, name, version)
+        ud.parm['downloadfilename'] = "%s-%s.crate" % (name, version)
+        ud.parm['name'] = name
+
+        logger.debug(2, "Fetching %s to %s" % (ud.url, ud.parm['downloadfilename']))
+
+    def unpack(self, ud, rootdir, d):
+        """
+        Uses the crate to build the necessary paths for cargo to utilize it
+        """
+        if ud.type == 'crate':
+            return self._crate_unpack(ud, rootdir, d)
+        else:
+            super(Crate, self).unpack(ud, rootdir, d)
+
+    def _crate_unpack(self, ud, rootdir, d):
+        """
+        Unpacks a crate
+        """
+        thefile = ud.localpath
+
+        # possible metadata we need to write out
+        metadata = {}
+
+        # change to the rootdir to unpack but save the old working dir
+        save_cwd = os.getcwd()
+        os.chdir(rootdir)
+
+        pn = d.getVar('BPN')
+        if pn == ud.parm.get('name'):
+            cmd = "tar -xz --no-same-owner -f %s" % thefile
+        else:
+            cargo_bitbake = self._cargo_bitbake_path(rootdir)
+
+            cmd = "tar -xz --no-same-owner -f %s -C %s" % (thefile, cargo_bitbake)
+
+            # ensure we've got these paths made
+            bb.utils.mkdirhier(cargo_bitbake)
+
+            # generate metadata necessary
+            with open(thefile, 'rb') as f:
+                # get the SHA256 of the original tarball
+                tarhash = hashlib.sha256(f.read()).hexdigest()
+
+            metadata['files'] = {}
+            metadata['package'] = tarhash
+
+        # path it
+        path = d.getVar('PATH')
+        if path:
+            cmd = "PATH=\"%s\" %s" % (path, cmd)
+        bb.note("Unpacking %s to %s/" % (thefile, os.getcwd()))
+
+        ret = subprocess.call(cmd, preexec_fn=subprocess_setup, shell=True)
+
+        os.chdir(save_cwd)
+
+        if ret != 0:
+            raise UnpackError("Unpack command %s failed with return value %s" % (cmd, ret), ud.url)
+
+        # if we have metadata to write out..
+        if len(metadata) > 0:
+            cratepath = os.path.splitext(os.path.basename(thefile))[0]
+            bbpath = self._cargo_bitbake_path(rootdir)
+            mdfile = '.cargo-checksum.json'
+            mdpath = os.path.join(bbpath, cratepath, mdfile)
+            with open(mdpath, "w") as f:
+                json.dump(metadata, f)
diff --git a/meta/recipes-core/packagegroups/packagegroup-rust-cross-canadian.bb b/meta/recipes-core/packagegroups/packagegroup-rust-cross-canadian.bb
new file mode 100644
index 0000000000..0d4f5ec9ef
--- /dev/null
+++ b/meta/recipes-core/packagegroups/packagegroup-rust-cross-canadian.bb
@@ -0,0 +1,18 @@
+SUMMARY = "Host SDK package for Rust cross canadian toolchain"
+PN = "packagegroup-rust-cross-canadian-${MACHINE}"
+
+inherit cross-canadian packagegroup
+
+PACKAGEGROUP_DISABLE_COMPLEMENTARY = "1"
+
+RUST="rust-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+CARGO="cargo-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+RUST_TOOLS="rust-tools-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+
+RDEPENDS:${PN} = " \
+    ${@all_multilib_tune_values(d, 'RUST')} \
+    ${@all_multilib_tune_values(d, 'CARGO')} \
+    rust-cross-canadian-src \
+    ${@all_multilib_tune_values(d, 'RUST_TOOLS')} \
+"
+
diff --git a/meta/recipes-devtools/cargo/cargo-1.51.0/0001-Disable-http2.patch b/meta/recipes-devtools/cargo/cargo-1.51.0/0001-Disable-http2.patch
new file mode 100644
index 0000000000..9d47c9beb5
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo-1.51.0/0001-Disable-http2.patch
@@ -0,0 +1,28 @@
+From 9844e63845da6cdafa485ad1ad3c99eaaa80312d Mon Sep 17 00:00:00 2001
+From: Johan Anderholm <johan.anderholm@gmail.com>
+Date: Sun, 27 Jan 2019 10:19:00 +0100
+Subject: [PATCH] Disable http2
+
+http2 requires that curl is build with nghttp2 which in turn depends on
+many dependencies and ultimately a dependency loop in the case of
+curl-native. As long as multiplexing is disabled in cargo this should
+be fine.
+
+Upstream-Status: Inappropriate
+---
+ Cargo.toml | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Cargo.toml b/Cargo.toml
+index 8a144a4..c4f856e 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -25,7 +25,7 @@ cargo-platform = { path = "crates/cargo-platform", version = "0.1.1" }
+ crates-io = { path = "crates/crates-io", version = "0.33.0" }
+ crossbeam-utils = "0.8"
+ crypto-hash = "0.3.1"
+-curl = { version = "0.4.23", features = ["http2"] }
++curl = { version = "0.4.23" }
+ curl-sys = "0.4.22"
+ env_logger = "0.8.1"
+ pretty_env_logger = { version = "0.4", optional = true }
diff --git a/meta/recipes-devtools/cargo/cargo-1.51.0/riscv-march.patch b/meta/recipes-devtools/cargo/cargo-1.51.0/riscv-march.patch
new file mode 100644
index 0000000000..a10b3a4d93
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo-1.51.0/riscv-march.patch
@@ -0,0 +1,73 @@
+Add suppor for riscv64 and riscv32 musl targets
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+--- a/vendor/cc/src/lib.rs
++++ b/vendor/cc/src/lib.rs
+@@ -2361,6 +2361,7 @@ impl Build {
+                 "riscv-none-embed",
+             ]),
+             "riscv64gc-unknown-linux-gnu" => Some("riscv64-linux-gnu"),
++            "riscv64gc-unknown-linux-musl" => Some("riscv64-linux-musl"),
+             "s390x-unknown-linux-gnu" => Some("s390x-linux-gnu"),
+             "sparc-unknown-linux-gnu" => Some("sparc-linux-gnu"),
+             "sparc64-unknown-linux-gnu" => Some("sparc64-linux-gnu"),
+--- a/compiler/rustc_target/src/spec/mod.rs
++++ b/compiler/rustc_target/src/spec/mod.rs
+@@ -641,9 +641,11 @@ supported_targets! {
+     ("riscv32imc-unknown-none-elf", riscv32imc_unknown_none_elf),
+     ("riscv32imac-unknown-none-elf", riscv32imac_unknown_none_elf),
+     ("riscv32gc-unknown-linux-gnu", riscv32gc_unknown_linux_gnu),
++    ("riscv32gc-unknown-linux-musl", riscv32gc_unknown_linux_musl),
+     ("riscv64imac-unknown-none-elf", riscv64imac_unknown_none_elf),
+     ("riscv64gc-unknown-none-elf", riscv64gc_unknown_none_elf),
+     ("riscv64gc-unknown-linux-gnu", riscv64gc_unknown_linux_gnu),
++    ("riscv64gc-unknown-linux-musl", riscv64gc_unknown_linux_musl),
+ 
+     ("aarch64-unknown-none", aarch64_unknown_none),
+     ("aarch64-unknown-none-softfloat", aarch64_unknown_none_softfloat),
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_musl.rs
+@@ -0,0 +1,19 @@
++use crate::spec::{CodeModel, Target, TargetOptions};
++
++pub fn target() -> Target {
++    Target {
++        llvm_target: "riscv32-unknown-linux-musl".to_string(),
++        pointer_width: 32,
++        data_layout: "e-m:e-p:32:32-i64:64-n32-S128".to_string(),
++        arch: "riscv32".to_string(),
++        options: TargetOptions {
++            unsupported_abis: super::riscv_base::unsupported_abis(),
++            code_model: Some(CodeModel::Medium),
++            cpu: "generic-rv32".to_string(),
++            features: "+m,+a,+f,+d,+c".to_string(),
++            llvm_abiname: "ilp32d".to_string(),
++            max_atomic_width: Some(32),
++            ..super::linux_musl_base::opts()
++        },
++    }
++}
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs
+@@ -0,0 +1,19 @@
++use crate::spec::{CodeModel, Target, TargetOptions};
++
++pub fn target() -> Target {
++    Target {
++        llvm_target: "riscv64-unknown-linux-musl".to_string(),
++        pointer_width: 64,
++        data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".to_string(),
++        arch: "riscv64".to_string(),
++        options: TargetOptions {
++            unsupported_abis: super::riscv_base::unsupported_abis(),
++            code_model: Some(CodeModel::Medium),
++            cpu: "generic-rv64".to_string(),
++            features: "+m,+a,+f,+d,+c".to_string(),
++            llvm_abiname: "lp64d".to_string(),
++            max_atomic_width: Some(64),
++            ..super::linux_musl_base::opts()
++        },
++    }
++}
diff --git a/meta/recipes-devtools/cargo/cargo-1.51.0/rv64gc.patch b/meta/recipes-devtools/cargo/cargo-1.51.0/rv64gc.patch
new file mode 100644
index 0000000000..aab1e18453
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo-1.51.0/rv64gc.patch
@@ -0,0 +1,37 @@
+--- a/vendor/cc-1.0.60/.cargo-checksum.json
++++ b/vendor/cc-1.0.60/.cargo-checksum.json
+@@ -1 +1 @@
+-{"files":{"Cargo.lock":"30b9e23f97015aea3eed3e17c6d76d565c2924efec8bdae64c899080847afe89","Cargo.toml":"f6f22b69df3df57c58373cdee72b22218ffa030bc375b36632660037dd72c866","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"51405d284d2e0620db62c655c652fc0ec84f20c1cb30529227355c9575a9e6dd","src/bin/gcc-shim.rs":"b77907875029494b6288841c3aed2e4939ed40708c7f597fca5c9e2570490ca6","src/com.rs":"bcdaf1c28b71e6ef889c6b08d1ce9d7c0761344a677f523bc4c3cd297957f804","src/lib.rs":"903c5f2f5dd0cc7d04f99f605a95e6abde8b38156fd4e73eefc58493f55a4e5a","src/registry.rs":"3cc1b5a50879fa751572878ae1d0afbfc960c11665258492754b2c8bccb0ff5d","src/setup_config.rs":"7014103587d3382eac599cb76f016e2609b8140970861b2237982d1db24af265","src/winapi.rs":"ea8b7edbb9ff87957254f465c2334e714c5d6b3b19a8d757c48ea7ca0881c50c","src/windows_registry.rs":"52afe8554f577c87841c48ddee3ba7ffe70a00129e1d6eeb2ec0efb3d2b9aa11","tests/cc_env.rs":"e02b3b0824ad039b47e4462c5ef6dbe6c824c28e7953af94a0f28f7b5158042e","tests/cflags.rs":"57f06eb5ce1557e5b4a032d0c4673e18fbe6f8d26c1deb153126e368b96b41b3","tests/cxxflags.rs":"c2c6c6d8a0d7146616fa1caed26876ee7bc9fcfffd525eb4743593cade5f3371","tests/support/mod.rs":"16274867f23871e9b07614eda4c7344da13d1751fed63d4f633857e40be86394","tests/test.rs":"65c073e0e2cf4aa0433066102788e9f57442719e6f32f5ad5248aa7132bb4597"},"package":"ef611cc68ff783f18535d77ddd080185275713d852c4f5cbb6122c462a7a825c"}
+\ No newline at end of file
++{"files":{"Cargo.lock":"30b9e23f97015aea3eed3e17c6d76d565c2924efec8bdae64c899080847afe89","Cargo.toml":"f6f22b69df3df57c58373cdee72b22218ffa030bc375b36632660037dd72c866","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"51405d284d2e0620db62c655c652fc0ec84f20c1cb30529227355c9575a9e6dd","src/bin/gcc-shim.rs":"b77907875029494b6288841c3aed2e4939ed40708c7f597fca5c9e2570490ca6","src/com.rs":"bcdaf1c28b71e6ef889c6b08d1ce9d7c0761344a677f523bc4c3cd297957f804","src/lib.rs":"2788af2bdf425f267b33bc524f3e627851b52422e38f480a7e39eb834264fd73","src/registry.rs":"3cc1b5a50879fa751572878ae1d0afbfc960c11665258492754b2c8bccb0ff5d","src/setup_config.rs":"7014103587d3382eac599cb76f016e2609b8140970861b2237982d1db24af265","src/winapi.rs":"ea8b7edbb9ff87957254f465c2334e714c5d6b3b19a8d757c48ea7ca0881c50c","src/windows_registry.rs":"52afe8554f577c87841c48ddee3ba7ffe70a00129e1d6eeb2ec0efb3d2b9aa11","tests/cc_env.rs":"e02b3b0824ad039b47e4462c5ef6dbe6c824c28e7953af94a0f28f7b5158042e","tests/cflags.rs":"57f06eb5ce1557e5b4a032d0c4673e18fbe6f8d26c1deb153126e368b96b41b3","tests/cxxflags.rs":"c2c6c6d8a0d7146616fa1caed26876ee7bc9fcfffd525eb4743593cade5f3371","tests/support/mod.rs":"16274867f23871e9b07614eda4c7344da13d1751fed63d4f633857e40be86394","tests/test.rs":"65c073e0e2cf4aa0433066102788e9f57442719e6f32f5ad5248aa7132bb4597"},"package":"ef611cc68ff783f18535d77ddd080185275713d852c4f5cbb6122c462a7a825c"}
+--- a/vendor/cc-1.0.60/src/lib.rs
++++ b/vendor/cc-1.0.60/src/lib.rs
+@@ -1639,14 +1639,17 @@ impl Build {
+                     let mut parts = target.split('-');
+                     if let Some(arch) = parts.next() {
+                         let arch = &arch[5..];
+-                        cmd.args.push(("-march=rv".to_owned() + arch).into());
+                         if target.contains("linux") && arch.starts_with("64") {
++                            cmd.args.push(("-march=rv64gc").into());
+                             cmd.args.push("-mabi=lp64d".into());
+                         } else if target.contains("linux") && arch.starts_with("32") {
++                            cmd.args.push(("-march=rv32gc").into());
+                             cmd.args.push("-mabi=ilp32d".into());
+                         } else if arch.starts_with("64") {
++                            cmd.args.push(("-march=rv".to_owned() + arch).into());
+                             cmd.args.push("-mabi=lp64".into());
+                         } else {
++                            cmd.args.push(("-march=rv".to_owned() + arch).into());
+                             cmd.args.push("-mabi=ilp32".into());
+                         }
+                         cmd.args.push("-mcmodel=medany".into());
+@@ -2332,6 +2335,9 @@ impl Build {
+                 "riscv-none-embed",
+             ]),
+             "riscv64gc-unknown-linux-gnu" => Some("riscv64-linux-gnu"),
++            "riscv32gc-unknown-linux-gnu" => Some("riscv32-linux-gnu"),
++            "riscv64gc-unknown-linux-musl" => Some("riscv64-linux-musl"),
++            "riscv32gc-unknown-linux-musl" => Some("riscv32-linux-musl"),
+             "s390x-unknown-linux-gnu" => Some("s390x-linux-gnu"),
+             "sparc-unknown-linux-gnu" => Some("sparc-linux-gnu"),
+             "sparc64-unknown-linux-gnu" => Some("sparc64-linux-gnu"),
diff --git a/meta/recipes-devtools/cargo/cargo-cross-canadian.inc b/meta/recipes-devtools/cargo/cargo-cross-canadian.inc
new file mode 100644
index 0000000000..840793c50b
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo-cross-canadian.inc
@@ -0,0 +1,74 @@
+SUMMARY = "Cargo, a package manager for Rust cross canadian flavor."
+
+RUST_ALTERNATE_EXE_PATH = "${STAGING_LIBDIR_NATIVE}/llvm-rust/bin/llvm-config"
+
+HOST_SYS = "${HOST_ARCH}-unknown-linux-gnu"
+CARGO_RUST_TARGET_CCLD = "${RUST_BUILD_CCLD}"
+
+require recipes-devtools/rust/rust-common.inc
+require cargo.inc
+
+CARGO = "${WORKDIR}/${CARGO_SNAPSHOT}/bin/cargo"
+BASEDEPENDS:remove = "cargo-native"
+
+export RUST_TARGET_PATH="${WORKDIR}/targets/"
+
+RUSTLIB = " \
+        -L ${STAGING_DIR_NATIVE}/${SDKPATHNATIVE}/usr/lib/${TARGET_SYS}/rustlib/${HOST_SYS}/lib \
+"
+
+DEPENDS += "rust-native \
+            rust-cross-canadian-${TRANSLATED_TARGET_ARCH} \
+            virtual/nativesdk-${HOST_PREFIX}compilerlibs \
+            nativesdk-openssl nativesdk-zlib \
+            virtual/nativesdk-libc \
+"
+
+inherit cross-canadian
+
+PN = "cargo-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+
+LLVM_TARGET[x86_64] = "${RUST_HOST_SYS}"
+
+python do_rust_gen_targets () {
+    wd = d.getVar('WORKDIR') + '/targets/'
+
+    rust_gen_target(d, 'BUILD', wd, "", "generic", d.getVar('BUILD_ARCH'))
+    rust_gen_target(d, 'HOST', wd, "", "generic", d.getVar('HOST_ARCH'))
+}
+
+do_compile:prepend () {
+        PKG_CONFIG_PATH="${RECIPE_SYSROOT_NATIVE}/usr/lib/pkgconfig:${PKG_CONFIG_PATH}"
+}
+
+do_install () {
+    SYS_BINDIR=$(dirname ${D}${bindir})
+    install -d "${SYS_BINDIR}"
+    install -m 755 "${B}/target/${CARGO_TARGET_SUBDIR}/cargo" "${SYS_BINDIR}"
+    for i in ${SYS_BINDIR}/*; do
+        chrpath -r "\$ORIGIN/../lib" ${i}
+    done
+
+    ENV_SETUP_DIR=${D}${base_prefix}/environment-setup.d
+    mkdir "${ENV_SETUP_DIR}"
+    ENV_SETUP_SH="${ENV_SETUP_DIR}/cargo.sh"
+    cat <<- EOF > "${ENV_SETUP_SH}"
+        export CARGO_HOME="\$OECORE_TARGET_SYSROOT/home/cargo"
+        mkdir -p "\$CARGO_HOME"
+        # Init the default target once, it might be otherwise user modified.
+        if [ ! -f "\$CARGO_HOME/config" ]; then
+                touch "\$CARGO_HOME/config"
+                echo "[build]" >> "\$CARGO_HOME/config"
+                echo 'target = "'${TARGET_SYS}'"' >> "\$CARGO_HOME/config"
+        fi
+
+        # Keep the below off as long as HTTP/2 is disabled.
+        export CARGO_HTTP_MULTIPLEXING=false
+
+        export CARGO_HTTP_CAINFO="\$OECORE_NATIVE_SYSROOT/etc/ssl/certs/ca-certificates.crt"
+        EOF
+}
+
+PKG_SYS_BINDIR = "${SDKPATHNATIVE}/usr/bin"
+FILES:${PN} += "${base_prefix}/environment-setup.d ${PKG_SYS_BINDIR}"
+
diff --git a/meta/recipes-devtools/cargo/cargo-cross-canadian_1.51.0.bb b/meta/recipes-devtools/cargo/cargo-cross-canadian_1.51.0.bb
new file mode 100644
index 0000000000..dba400bcfb
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo-cross-canadian_1.51.0.bb
@@ -0,0 +1,6 @@
+require recipes-devtools/rust/rust-source-${PV}.inc
+require recipes-devtools/rust/rust-snapshot-${PV}.inc
+
+FILESEXTRAPATHS:prepend := "${THISDIR}/cargo-${PV}:"
+
+require cargo-cross-canadian.inc
diff --git a/meta/recipes-devtools/cargo/cargo-cross-canadian_1.54.0.bb b/meta/recipes-devtools/cargo/cargo-cross-canadian_1.54.0.bb
new file mode 100644
index 0000000000..dba400bcfb
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo-cross-canadian_1.54.0.bb
@@ -0,0 +1,6 @@
+require recipes-devtools/rust/rust-source-${PV}.inc
+require recipes-devtools/rust/rust-snapshot-${PV}.inc
+
+FILESEXTRAPATHS:prepend := "${THISDIR}/cargo-${PV}:"
+
+require cargo-cross-canadian.inc
diff --git a/meta/recipes-devtools/cargo/cargo.inc b/meta/recipes-devtools/cargo/cargo.inc
new file mode 100644
index 0000000000..32ccf0b7ae
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo.inc
@@ -0,0 +1,50 @@
+SUMMARY ?= "Cargo, a package manager for Rust."
+HOMEPAGE = "https://crates.io"
+LICENSE = "MIT | Apache-2.0"
+SECTION = "devel"
+
+DEPENDS = "openssl zlib curl ca-certificates libssh2"
+
+LIC_FILES_CHKSUM = " \
+    file://LICENSE-MIT;md5=b377b220f43d747efdec40d69fcaa69d \
+    file://LICENSE-APACHE;md5=71b224ca933f0676e26d5c2e2271331c \
+    file://LICENSE-THIRD-PARTY;md5=f257ad009884cb88a3a87d6920e7180a \
+"
+
+
+S = "${RUSTSRC}/src/tools/cargo"
+CARGO_VENDORING_DIRECTORY = "${RUSTSRC}/vendor"
+
+inherit cargo
+
+do_cargo_setup_snapshot () {
+        ${WORKDIR}/rust-snapshot-components/${CARGO_SNAPSHOT}/install.sh --prefix="${WORKDIR}/${CARGO_SNAPSHOT}" --disable-ldconfig
+}
+
+addtask cargo_setup_snapshot after do_unpack before do_configure
+do_cargo_setup_snapshot[dirs] += "${WORKDIR}/${CARGO_SNAPSHOT}"
+
+do_compile:prepend () {
+        export RUSTC_BOOTSTRAP="1"
+}
+
+do_install () {
+        install -d "${D}${bindir}"
+        install -m 755 "${B}/target/${CARGO_TARGET_SUBDIR}/cargo" "${D}${bindir}"
+}
+
+# Disabled due to incompatibility with libgit2 0.28.x (https://github.com/rust-lang/git2-rs/issues/458, https://bugs.gentoo.org/707746#c1)
+# as shipped by Yocto Dunfell.
+# According to https://github.com/rust-lang/git2-rs/issues/458#issuecomment-522567539, there are no compatibility guarantees between
+# libgit2-sys and arbitrary system libgit2 versions, so better keep this turned off.
+#export LIBGIT2_SYS_USE_PKG_CONFIG = "1"
+
+# Needed for pkg-config to be used
+export LIBSSH2_SYS_USE_PKG_CONFIG = "1"
+
+BBCLASSEXTEND = "native nativesdk"
+
+# When building cargo-native we don't have cargo-native to use and depend on,
+# so we must use the locally set up snapshot to bootstrap the build.
+BASEDEPENDS:remove:class-native = "cargo-native"
+CARGO:class-native = "${WORKDIR}/${CARGO_SNAPSHOT}/bin/cargo"
diff --git a/meta/recipes-devtools/cargo/cargo_1.51.0.bb b/meta/recipes-devtools/cargo/cargo_1.51.0.bb
new file mode 100644
index 0000000000..335b491cc9
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo_1.51.0.bb
@@ -0,0 +1,8 @@
+require recipes-devtools/rust/rust-source-${PV}.inc
+require recipes-devtools/rust/rust-snapshot-${PV}.inc
+require cargo.inc
+
+SRC_URI += "file://0001-Disable-http2.patch \
+            file://riscv-march.patch;patchdir=../../.. \
+            file://rv64gc.patch;patchdir=../../.. \
+            "
diff --git a/meta/recipes-devtools/cargo/cargo_1.54.0.bb b/meta/recipes-devtools/cargo/cargo_1.54.0.bb
new file mode 100644
index 0000000000..1f69615640
--- /dev/null
+++ b/meta/recipes-devtools/cargo/cargo_1.54.0.bb
@@ -0,0 +1,4 @@
+require recipes-devtools/rust/rust-source-${PV}.inc
+require recipes-devtools/rust/rust-snapshot-${PV}.inc
+require cargo.inc
+
diff --git a/meta/recipes-devtools/rust/files/riscv-march.patch b/meta/recipes-devtools/rust/files/riscv-march.patch
new file mode 100644
index 0000000000..a10b3a4d93
--- /dev/null
+++ b/meta/recipes-devtools/rust/files/riscv-march.patch
@@ -0,0 +1,73 @@
+Add suppor for riscv64 and riscv32 musl targets
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+--- a/vendor/cc/src/lib.rs
++++ b/vendor/cc/src/lib.rs
+@@ -2361,6 +2361,7 @@ impl Build {
+                 "riscv-none-embed",
+             ]),
+             "riscv64gc-unknown-linux-gnu" => Some("riscv64-linux-gnu"),
++            "riscv64gc-unknown-linux-musl" => Some("riscv64-linux-musl"),
+             "s390x-unknown-linux-gnu" => Some("s390x-linux-gnu"),
+             "sparc-unknown-linux-gnu" => Some("sparc-linux-gnu"),
+             "sparc64-unknown-linux-gnu" => Some("sparc64-linux-gnu"),
+--- a/compiler/rustc_target/src/spec/mod.rs
++++ b/compiler/rustc_target/src/spec/mod.rs
+@@ -641,9 +641,11 @@ supported_targets! {
+     ("riscv32imc-unknown-none-elf", riscv32imc_unknown_none_elf),
+     ("riscv32imac-unknown-none-elf", riscv32imac_unknown_none_elf),
+     ("riscv32gc-unknown-linux-gnu", riscv32gc_unknown_linux_gnu),
++    ("riscv32gc-unknown-linux-musl", riscv32gc_unknown_linux_musl),
+     ("riscv64imac-unknown-none-elf", riscv64imac_unknown_none_elf),
+     ("riscv64gc-unknown-none-elf", riscv64gc_unknown_none_elf),
+     ("riscv64gc-unknown-linux-gnu", riscv64gc_unknown_linux_gnu),
++    ("riscv64gc-unknown-linux-musl", riscv64gc_unknown_linux_musl),
+ 
+     ("aarch64-unknown-none", aarch64_unknown_none),
+     ("aarch64-unknown-none-softfloat", aarch64_unknown_none_softfloat),
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_musl.rs
+@@ -0,0 +1,19 @@
++use crate::spec::{CodeModel, Target, TargetOptions};
++
++pub fn target() -> Target {
++    Target {
++        llvm_target: "riscv32-unknown-linux-musl".to_string(),
++        pointer_width: 32,
++        data_layout: "e-m:e-p:32:32-i64:64-n32-S128".to_string(),
++        arch: "riscv32".to_string(),
++        options: TargetOptions {
++            unsupported_abis: super::riscv_base::unsupported_abis(),
++            code_model: Some(CodeModel::Medium),
++            cpu: "generic-rv32".to_string(),
++            features: "+m,+a,+f,+d,+c".to_string(),
++            llvm_abiname: "ilp32d".to_string(),
++            max_atomic_width: Some(32),
++            ..super::linux_musl_base::opts()
++        },
++    }
++}
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs
+@@ -0,0 +1,19 @@
++use crate::spec::{CodeModel, Target, TargetOptions};
++
++pub fn target() -> Target {
++    Target {
++        llvm_target: "riscv64-unknown-linux-musl".to_string(),
++        pointer_width: 64,
++        data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".to_string(),
++        arch: "riscv64".to_string(),
++        options: TargetOptions {
++            unsupported_abis: super::riscv_base::unsupported_abis(),
++            code_model: Some(CodeModel::Medium),
++            cpu: "generic-rv64".to_string(),
++            features: "+m,+a,+f,+d,+c".to_string(),
++            llvm_abiname: "lp64d".to_string(),
++            max_atomic_width: Some(64),
++            ..super::linux_musl_base::opts()
++        },
++    }
++}
diff --git a/meta/recipes-devtools/rust/files/rv64gc.patch b/meta/recipes-devtools/rust/files/rv64gc.patch
new file mode 100644
index 0000000000..aab1e18453
--- /dev/null
+++ b/meta/recipes-devtools/rust/files/rv64gc.patch
@@ -0,0 +1,37 @@
+--- a/vendor/cc-1.0.60/.cargo-checksum.json
++++ b/vendor/cc-1.0.60/.cargo-checksum.json
+@@ -1 +1 @@
+-{"files":{"Cargo.lock":"30b9e23f97015aea3eed3e17c6d76d565c2924efec8bdae64c899080847afe89","Cargo.toml":"f6f22b69df3df57c58373cdee72b22218ffa030bc375b36632660037dd72c866","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"51405d284d2e0620db62c655c652fc0ec84f20c1cb30529227355c9575a9e6dd","src/bin/gcc-shim.rs":"b77907875029494b6288841c3aed2e4939ed40708c7f597fca5c9e2570490ca6","src/com.rs":"bcdaf1c28b71e6ef889c6b08d1ce9d7c0761344a677f523bc4c3cd297957f804","src/lib.rs":"903c5f2f5dd0cc7d04f99f605a95e6abde8b38156fd4e73eefc58493f55a4e5a","src/registry.rs":"3cc1b5a50879fa751572878ae1d0afbfc960c11665258492754b2c8bccb0ff5d","src/setup_config.rs":"7014103587d3382eac599cb76f016e2609b8140970861b2237982d1db24af265","src/winapi.rs":"ea8b7edbb9ff87957254f465c2334e714c5d6b3b19a8d757c48ea7ca0881c50c","src/windows_registry.rs":"52afe8554f577c87841c48ddee3ba7ffe70a00129e1d6eeb2ec0efb3d2b9aa11","tests/cc_env.rs":"e02b3b0824ad039b47e4462c5ef6dbe6c824c28e7953af94a0f28f7b5158042e","tests/cflags.rs":"57f06eb5ce1557e5b4a032d0c4673e18fbe6f8d26c1deb153126e368b96b41b3","tests/cxxflags.rs":"c2c6c6d8a0d7146616fa1caed26876ee7bc9fcfffd525eb4743593cade5f3371","tests/support/mod.rs":"16274867f23871e9b07614eda4c7344da13d1751fed63d4f633857e40be86394","tests/test.rs":"65c073e0e2cf4aa0433066102788e9f57442719e6f32f5ad5248aa7132bb4597"},"package":"ef611cc68ff783f18535d77ddd080185275713d852c4f5cbb6122c462a7a825c"}
+\ No newline at end of file
++{"files":{"Cargo.lock":"30b9e23f97015aea3eed3e17c6d76d565c2924efec8bdae64c899080847afe89","Cargo.toml":"f6f22b69df3df57c58373cdee72b22218ffa030bc375b36632660037dd72c866","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"51405d284d2e0620db62c655c652fc0ec84f20c1cb30529227355c9575a9e6dd","src/bin/gcc-shim.rs":"b77907875029494b6288841c3aed2e4939ed40708c7f597fca5c9e2570490ca6","src/com.rs":"bcdaf1c28b71e6ef889c6b08d1ce9d7c0761344a677f523bc4c3cd297957f804","src/lib.rs":"2788af2bdf425f267b33bc524f3e627851b52422e38f480a7e39eb834264fd73","src/registry.rs":"3cc1b5a50879fa751572878ae1d0afbfc960c11665258492754b2c8bccb0ff5d","src/setup_config.rs":"7014103587d3382eac599cb76f016e2609b8140970861b2237982d1db24af265","src/winapi.rs":"ea8b7edbb9ff87957254f465c2334e714c5d6b3b19a8d757c48ea7ca0881c50c","src/windows_registry.rs":"52afe8554f577c87841c48ddee3ba7ffe70a00129e1d6eeb2ec0efb3d2b9aa11","tests/cc_env.rs":"e02b3b0824ad039b47e4462c5ef6dbe6c824c28e7953af94a0f28f7b5158042e","tests/cflags.rs":"57f06eb5ce1557e5b4a032d0c4673e18fbe6f8d26c1deb153126e368b96b41b3","tests/cxxflags.rs":"c2c6c6d8a0d7146616fa1caed26876ee7bc9fcfffd525eb4743593cade5f3371","tests/support/mod.rs":"16274867f23871e9b07614eda4c7344da13d1751fed63d4f633857e40be86394","tests/test.rs":"65c073e0e2cf4aa0433066102788e9f57442719e6f32f5ad5248aa7132bb4597"},"package":"ef611cc68ff783f18535d77ddd080185275713d852c4f5cbb6122c462a7a825c"}
+--- a/vendor/cc-1.0.60/src/lib.rs
++++ b/vendor/cc-1.0.60/src/lib.rs
+@@ -1639,14 +1639,17 @@ impl Build {
+                     let mut parts = target.split('-');
+                     if let Some(arch) = parts.next() {
+                         let arch = &arch[5..];
+-                        cmd.args.push(("-march=rv".to_owned() + arch).into());
+                         if target.contains("linux") && arch.starts_with("64") {
++                            cmd.args.push(("-march=rv64gc").into());
+                             cmd.args.push("-mabi=lp64d".into());
+                         } else if target.contains("linux") && arch.starts_with("32") {
++                            cmd.args.push(("-march=rv32gc").into());
+                             cmd.args.push("-mabi=ilp32d".into());
+                         } else if arch.starts_with("64") {
++                            cmd.args.push(("-march=rv".to_owned() + arch).into());
+                             cmd.args.push("-mabi=lp64".into());
+                         } else {
++                            cmd.args.push(("-march=rv".to_owned() + arch).into());
+                             cmd.args.push("-mabi=ilp32".into());
+                         }
+                         cmd.args.push("-mcmodel=medany".into());
+@@ -2332,6 +2335,9 @@ impl Build {
+                 "riscv-none-embed",
+             ]),
+             "riscv64gc-unknown-linux-gnu" => Some("riscv64-linux-gnu"),
++            "riscv32gc-unknown-linux-gnu" => Some("riscv32-linux-gnu"),
++            "riscv64gc-unknown-linux-musl" => Some("riscv64-linux-musl"),
++            "riscv32gc-unknown-linux-musl" => Some("riscv32-linux-musl"),
+             "s390x-unknown-linux-gnu" => Some("s390x-linux-gnu"),
+             "sparc-unknown-linux-gnu" => Some("sparc-linux-gnu"),
+             "sparc64-unknown-linux-gnu" => Some("sparc64-linux-gnu"),
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.51.0/0001-Add-base-definitions-for-riscv64-musl.patch b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0001-Add-base-definitions-for-riscv64-musl.patch
new file mode 100644
index 0000000000..85d0edc4d1
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0001-Add-base-definitions-for-riscv64-musl.patch
@@ -0,0 +1,904 @@
+From 23aa6dfba4f2745800d89f9ee67d390465c76bfa Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 17 Feb 2021 00:32:57 -0800
+Subject: [PATCH 1/4] Add base definitions for riscv64 + musl
+
+https://github.com/rust-lang/libc/pull/1994/commits/030a07761f61f3293d53752e60edbd330a9d718d
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ .../src/unix/linux_like/linux/musl/b64/mod.rs |   3 +
+ .../linux_like/linux/musl/b64/riscv64/mod.rs  | 867 ++++++++++++++++++
+ 2 files changed, 870 insertions(+)
+ create mode 100644 vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+
+diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b64/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/b64/mod.rs
+index 62abee00d..78e805b15 100644
+--- a/vendor/libc/src/unix/linux_like/linux/musl/b64/mod.rs
++++ b/vendor/libc/src/unix/linux_like/linux/musl/b64/mod.rs
+@@ -164,6 +164,9 @@ cfg_if! {
+     } else if #[cfg(any(target_arch = "x86_64"))] {
+         mod x86_64;
+         pub use self::x86_64::*;
++    } else if #[cfg(any(target_arch = "riscv64"))] {
++        mod riscv64;
++        pub use self::riscv64::*;
+     } else {
+         // Unknown target_arch
+     }
+diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+new file mode 100644
+index 000000000..14bae11d0
+--- /dev/null
++++ b/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+@@ -0,0 +1,867 @@
++//! RISC-V-specific definitions for 64-bit linux-like values
++
++pub type c_char = u8;
++pub type c_long = i64;
++pub type c_ulong = u64;
++pub type wchar_t = ::c_int;
++
++pub type nlink_t = ::c_uint;
++pub type blksize_t = ::c_int;
++pub type fsblkcnt64_t = ::c_ulong;
++pub type fsfilcnt64_t = ::c_ulong;
++pub type suseconds_t = i64;
++pub type __u64 = ::c_ulonglong;
++
++s! {
++    pub struct pthread_attr_t {
++        __size: [::c_ulong; 7],
++    }
++
++    pub struct stat {
++        pub st_dev: ::dev_t,
++        pub st_ino: ::ino_t,
++        pub st_mode: ::mode_t,
++        pub st_nlink: ::nlink_t,
++        pub st_uid: ::uid_t,
++        pub st_gid: ::gid_t,
++        pub st_rdev: ::dev_t,
++        pub __pad1: ::dev_t,
++        pub st_size: ::off_t,
++        pub st_blksize: ::blksize_t,
++        pub __pad2: ::c_int,
++        pub st_blocks: ::blkcnt_t,
++        pub st_atime: ::time_t,
++        pub st_atime_nsec: ::c_long,
++        pub st_mtime: ::time_t,
++        pub st_mtime_nsec: ::c_long,
++        pub st_ctime: ::time_t,
++        pub st_ctime_nsec: ::c_long,
++        __unused: [::c_int; 2usize],
++    }
++
++    pub struct stat64 {
++        pub st_dev: ::dev_t,
++        pub st_ino: ::ino64_t,
++        pub st_mode: ::mode_t,
++        pub st_nlink: ::nlink_t,
++        pub st_uid: ::uid_t,
++        pub st_gid: ::gid_t,
++        pub st_rdev: ::dev_t,
++        pub __pad1: ::dev_t,
++        pub st_size: ::off64_t,
++        pub st_blksize: ::blksize_t,
++        pub __pad2: ::c_int,
++        pub st_blocks: ::blkcnt_t,
++        pub st_atime: ::time_t,
++        pub st_atime_nsec: ::c_long,
++        pub st_mtime: ::time_t,
++        pub st_mtime_nsec: ::c_long,
++        pub st_ctime: ::time_t,
++        pub st_ctime_nsec: ::c_long,
++        __unused: [::c_int; 2],
++    }
++
++    pub struct statfs {
++        pub f_type: ::c_long,
++        pub f_bsize: ::c_long,
++        pub f_blocks: ::fsblkcnt_t,
++        pub f_bfree: ::fsblkcnt_t,
++        pub f_bavail: ::fsblkcnt_t,
++        pub f_files: ::fsfilcnt_t,
++        pub f_ffree: ::fsfilcnt_t,
++        pub f_fsid: ::fsid_t,
++        pub f_namelen: ::c_long,
++        pub f_frsize: ::c_long,
++        pub f_flags: ::c_long,
++        pub f_spare: [::c_long; 4],
++    }
++
++    pub struct statfs64 {
++        pub f_type: ::c_long,
++        pub f_bsize: ::c_long,
++        pub f_blocks: ::fsblkcnt64_t,
++        pub f_bfree: ::fsblkcnt64_t,
++        pub f_bavail: ::fsblkcnt64_t,
++        pub f_files: ::fsfilcnt64_t,
++        pub f_ffree: ::fsfilcnt64_t,
++        pub f_fsid: ::fsid_t,
++        pub f_namelen: ::c_long,
++        pub f_frsize: ::c_long,
++        pub f_flags: ::c_long,
++        pub f_spare: [::c_long; 4],
++    }
++
++    pub struct statvfs {
++        pub f_bsize: ::c_ulong,
++        pub f_frsize: ::c_ulong,
++        pub f_blocks: ::fsblkcnt_t,
++        pub f_bfree: ::fsblkcnt_t,
++        pub f_bavail: ::fsblkcnt_t,
++        pub f_files: ::fsfilcnt_t,
++        pub f_ffree: ::fsfilcnt_t,
++        pub f_favail: ::fsfilcnt_t,
++        pub f_fsid: ::c_ulong,
++        pub f_flag: ::c_ulong,
++        pub f_namemax: ::c_ulong,
++        pub __f_spare: [::c_int; 6],
++    }
++
++    pub struct statvfs64 {
++        pub f_bsize: ::c_ulong,
++        pub f_frsize: ::c_ulong,
++        pub f_blocks: ::fsblkcnt64_t,
++        pub f_bfree: ::fsblkcnt64_t,
++        pub f_bavail: ::fsblkcnt64_t,
++        pub f_files: ::fsfilcnt64_t,
++        pub f_ffree: ::fsfilcnt64_t,
++        pub f_favail: ::fsfilcnt64_t,
++        pub f_fsid: ::c_ulong,
++        pub f_flag: ::c_ulong,
++        pub f_namemax: ::c_ulong,
++        pub __f_spare: [::c_int; 6],
++    }
++
++    pub struct siginfo_t {
++        pub si_signo: ::c_int,
++        pub si_errno: ::c_int,
++        pub si_code: ::c_int,
++        #[doc(hidden)]
++        #[deprecated(
++            since="0.2.54",
++            note="Please leave a comment on \
++                  https://github.com/rust-lang/libc/pull/1316 if you're using \
++                  this field"
++        )]
++        pub _pad: [::c_int; 29],
++        _align: [u64; 0],
++    }
++
++    pub struct stack_t {
++        pub ss_sp: *mut ::c_void,
++        pub ss_flags: ::c_int,
++        pub ss_size: ::size_t,
++    }
++
++    pub struct sigaction {
++        pub sa_sigaction: ::sighandler_t,
++        pub sa_mask: ::sigset_t,
++        pub sa_flags: ::c_int,
++        pub sa_restorer: ::Option<unsafe extern "C" fn()>,
++    }
++
++    pub struct ipc_perm {
++        pub __key: ::key_t,
++        pub uid: ::uid_t,
++        pub gid: ::gid_t,
++        pub cuid: ::uid_t,
++        pub cgid: ::gid_t,
++        pub mode: ::c_ushort,
++        __pad1: ::c_ushort,
++        pub __seq: ::c_ushort,
++        __pad2: ::c_ushort,
++        __unused1: ::c_ulong,
++        __unused2: ::c_ulong,
++    }
++
++    pub struct shmid_ds {
++        pub shm_perm: ::ipc_perm,
++        pub shm_segsz: ::size_t,
++        pub shm_atime: ::time_t,
++        pub shm_dtime: ::time_t,
++        pub shm_ctime: ::time_t,
++        pub shm_cpid: ::pid_t,
++        pub shm_lpid: ::pid_t,
++        pub shm_nattch: ::shmatt_t,
++        __unused5: ::c_ulong,
++        __unused6: ::c_ulong,
++    }
++
++    pub struct flock {
++        pub l_type: ::c_short,
++        pub l_whence: ::c_short,
++        pub l_start: ::off_t,
++        pub l_len: ::off_t,
++        pub l_pid: ::pid_t,
++    }
++
++    pub struct flock64 {
++        pub l_type: ::c_short,
++        pub l_whence: ::c_short,
++        pub l_start: ::off64_t,
++        pub l_len: ::off64_t,
++        pub l_pid: ::pid_t,
++    }
++
++    pub struct ip_mreqn {
++        pub imr_multiaddr: ::in_addr,
++        pub imr_address: ::in_addr,
++        pub imr_ifindex: ::c_int,
++    }
++}
++
++pub const POSIX_FADV_DONTNEED: ::c_int = 4;
++pub const POSIX_FADV_NOREUSE: ::c_int = 5;
++pub const VEOF: usize = 4;
++pub const RTLD_DEEPBIND: ::c_int = 0x8;
++pub const RTLD_GLOBAL: ::c_int = 0x100;
++pub const RTLD_NOLOAD: ::c_int = 0x4;
++pub const TIOCGSOFTCAR: ::c_ulong = 21529;
++pub const TIOCSSOFTCAR: ::c_ulong = 21530;
++pub const TIOCGRS485: ::c_int = 21550;
++pub const TIOCSRS485: ::c_int = 21551;
++pub const RLIMIT_RSS: ::__rlimit_resource_t = 5;
++pub const RLIMIT_AS: ::__rlimit_resource_t = 9;
++pub const RLIMIT_MEMLOCK: ::__rlimit_resource_t = 8;
++pub const RLIMIT_NOFILE: ::__rlimit_resource_t = 7;
++pub const RLIMIT_NPROC: ::__rlimit_resource_t = 6;
++pub const O_APPEND: ::c_int = 1024;
++pub const O_CREAT: ::c_int = 64;
++pub const O_EXCL: ::c_int = 128;
++pub const O_NOCTTY: ::c_int = 256;
++pub const O_NONBLOCK: ::c_int = 2048;
++pub const O_SYNC: ::c_int = 1052672;
++pub const O_RSYNC: ::c_int = 1052672;
++pub const O_DSYNC: ::c_int = 4096;
++pub const O_FSYNC: ::c_int = 1052672;
++pub const O_NOATIME: ::c_int = 262144;
++pub const O_PATH: ::c_int = 2097152;
++pub const O_TMPFILE: ::c_int = 4259840;
++pub const MAP_GROWSDOWN: ::c_int = 256;
++pub const EDEADLK: ::c_int = 35;
++pub const ENAMETOOLONG: ::c_int = 36;
++pub const ENOLCK: ::c_int = 37;
++pub const ENOSYS: ::c_int = 38;
++pub const ENOTEMPTY: ::c_int = 39;
++pub const ELOOP: ::c_int = 40;
++pub const ENOMSG: ::c_int = 42;
++pub const EIDRM: ::c_int = 43;
++pub const ECHRNG: ::c_int = 44;
++pub const EL2NSYNC: ::c_int = 45;
++pub const EL3HLT: ::c_int = 46;
++pub const EL3RST: ::c_int = 47;
++pub const ELNRNG: ::c_int = 48;
++pub const EUNATCH: ::c_int = 49;
++pub const ENOCSI: ::c_int = 50;
++pub const EL2HLT: ::c_int = 51;
++pub const EBADE: ::c_int = 52;
++pub const EBADR: ::c_int = 53;
++pub const EXFULL: ::c_int = 54;
++pub const ENOANO: ::c_int = 55;
++pub const EBADRQC: ::c_int = 56;
++pub const EBADSLT: ::c_int = 57;
++pub const EMULTIHOP: ::c_int = 72;
++pub const EOVERFLOW: ::c_int = 75;
++pub const ENOTUNIQ: ::c_int = 76;
++pub const EBADFD: ::c_int = 77;
++pub const EBADMSG: ::c_int = 74;
++pub const EREMCHG: ::c_int = 78;
++pub const ELIBACC: ::c_int = 79;
++pub const ELIBBAD: ::c_int = 80;
++pub const ELIBSCN: ::c_int = 81;
++pub const ELIBMAX: ::c_int = 82;
++pub const ELIBEXEC: ::c_int = 83;
++pub const EILSEQ: ::c_int = 84;
++pub const ERESTART: ::c_int = 85;
++pub const ESTRPIPE: ::c_int = 86;
++pub const EUSERS: ::c_int = 87;
++pub const ENOTSOCK: ::c_int = 88;
++pub const EDESTADDRREQ: ::c_int = 89;
++pub const EMSGSIZE: ::c_int = 90;
++pub const EPROTOTYPE: ::c_int = 91;
++pub const ENOPROTOOPT: ::c_int = 92;
++pub const EPROTONOSUPPORT: ::c_int = 93;
++pub const ESOCKTNOSUPPORT: ::c_int = 94;
++pub const EOPNOTSUPP: ::c_int = 95;
++pub const EPFNOSUPPORT: ::c_int = 96;
++pub const EAFNOSUPPORT: ::c_int = 97;
++pub const EADDRINUSE: ::c_int = 98;
++pub const EADDRNOTAVAIL: ::c_int = 99;
++pub const ENETDOWN: ::c_int = 100;
++pub const ENETUNREACH: ::c_int = 101;
++pub const ENETRESET: ::c_int = 102;
++pub const ECONNABORTED: ::c_int = 103;
++pub const ECONNRESET: ::c_int = 104;
++pub const ENOBUFS: ::c_int = 105;
++pub const EISCONN: ::c_int = 106;
++pub const ENOTCONN: ::c_int = 107;
++pub const ESHUTDOWN: ::c_int = 108;
++pub const ETOOMANYREFS: ::c_int = 109;
++pub const ETIMEDOUT: ::c_int = 110;
++pub const ECONNREFUSED: ::c_int = 111;
++pub const EHOSTDOWN: ::c_int = 112;
++pub const EHOSTUNREACH: ::c_int = 113;
++pub const EALREADY: ::c_int = 114;
++pub const EINPROGRESS: ::c_int = 115;
++pub const ESTALE: ::c_int = 116;
++pub const EDQUOT: ::c_int = 122;
++pub const ENOMEDIUM: ::c_int = 123;
++pub const EMEDIUMTYPE: ::c_int = 124;
++pub const ECANCELED: ::c_int = 125;
++pub const ENOKEY: ::c_int = 126;
++pub const EKEYEXPIRED: ::c_int = 127;
++pub const EKEYREVOKED: ::c_int = 128;
++pub const EKEYREJECTED: ::c_int = 129;
++pub const EOWNERDEAD: ::c_int = 130;
++pub const ENOTRECOVERABLE: ::c_int = 131;
++pub const EHWPOISON: ::c_int = 133;
++pub const ERFKILL: ::c_int = 132;
++pub const SOL_SOCKET: ::c_int = 1;
++pub const SO_REUSEADDR: ::c_int = 2;
++pub const SO_TYPE: ::c_int = 3;
++pub const SO_ERROR: ::c_int = 4;
++pub const SO_DONTROUTE: ::c_int = 5;
++pub const SO_BROADCAST: ::c_int = 6;
++pub const SO_SNDBUF: ::c_int = 7;
++pub const SO_RCVBUF: ::c_int = 8;
++pub const SO_SNDBUFFORCE: ::c_int = 32;
++pub const SO_RCVBUFFORCE: ::c_int = 33;
++pub const SO_KEEPALIVE: ::c_int = 9;
++pub const SO_OOBINLINE: ::c_int = 10;
++pub const SO_NO_CHECK: ::c_int = 11;
++pub const SO_PRIORITY: ::c_int = 12;
++pub const SO_LINGER: ::c_int = 13;
++pub const SO_BSDCOMPAT: ::c_int = 14;
++pub const SO_REUSEPORT: ::c_int = 15;
++pub const SO_PASSCRED: ::c_int = 16;
++pub const SO_PEERCRED: ::c_int = 17;
++pub const SO_RCVLOWAT: ::c_int = 18;
++pub const SO_SNDLOWAT: ::c_int = 19;
++pub const SO_RCVTIMEO: ::c_int = 20;
++pub const SO_SNDTIMEO: ::c_int = 21;
++pub const SO_SECURITY_AUTHENTICATION: ::c_int = 22;
++pub const SO_SECURITY_ENCRYPTION_TRANSPORT: ::c_int = 23;
++pub const SO_SECURITY_ENCRYPTION_NETWORK: ::c_int = 24;
++pub const SO_BINDTODEVICE: ::c_int = 25;
++pub const SO_ATTACH_FILTER: ::c_int = 26;
++pub const SO_DETACH_FILTER: ::c_int = 27;
++pub const SO_GET_FILTER: ::c_int = 26;
++pub const SO_PEERNAME: ::c_int = 28;
++pub const SO_TIMESTAMP: ::c_int = 29;
++pub const SO_ACCEPTCONN: ::c_int = 30;
++pub const SO_PEERSEC: ::c_int = 31;
++pub const SO_PASSSEC: ::c_int = 34;
++pub const SO_TIMESTAMPNS: ::c_int = 35;
++pub const SCM_TIMESTAMPNS: ::c_int = 35;
++pub const SO_MARK: ::c_int = 36;
++pub const SO_PROTOCOL: ::c_int = 38;
++pub const SO_DOMAIN: ::c_int = 39;
++pub const SO_RXQ_OVFL: ::c_int = 40;
++pub const SO_WIFI_STATUS: ::c_int = 41;
++pub const SCM_WIFI_STATUS: ::c_int = 41;
++pub const SO_PEEK_OFF: ::c_int = 42;
++pub const SO_NOFCS: ::c_int = 43;
++pub const SO_LOCK_FILTER: ::c_int = 44;
++pub const SO_SELECT_ERR_QUEUE: ::c_int = 45;
++pub const SO_BUSY_POLL: ::c_int = 46;
++pub const SO_MAX_PACING_RATE: ::c_int = 47;
++pub const SO_BPF_EXTENSIONS: ::c_int = 48;
++pub const SO_INCOMING_CPU: ::c_int = 49;
++pub const SO_ATTACH_BPF: ::c_int = 50;
++pub const SO_DETACH_BPF: ::c_int = 27;
++pub const SOCK_STREAM: ::c_int = 1;
++pub const SOCK_DGRAM: ::c_int = 2;
++pub const SA_ONSTACK: ::c_int = 134217728;
++pub const SA_SIGINFO: ::c_int = 4;
++pub const SA_NOCLDWAIT: ::c_int = 2;
++pub const SIGTTIN: ::c_int = 21;
++pub const SIGTTOU: ::c_int = 22;
++pub const SIGXCPU: ::c_int = 24;
++pub const SIGXFSZ: ::c_int = 25;
++pub const SIGVTALRM: ::c_int = 26;
++pub const SIGPROF: ::c_int = 27;
++pub const SIGWINCH: ::c_int = 28;
++pub const SIGCHLD: ::c_int = 17;
++pub const SIGBUS: ::c_int = 7;
++pub const SIGUSR1: ::c_int = 10;
++pub const SIGUSR2: ::c_int = 12;
++pub const SIGCONT: ::c_int = 18;
++pub const SIGSTOP: ::c_int = 19;
++pub const SIGTSTP: ::c_int = 20;
++pub const SIGURG: ::c_int = 23;
++pub const SIGIO: ::c_int = 29;
++pub const SIGSYS: ::c_int = 31;
++pub const SIGSTKFLT: ::c_int = 16;
++pub const SIGPOLL: ::c_int = 29;
++pub const SIGPWR: ::c_int = 30;
++pub const SIG_SETMASK: ::c_int = 2;
++pub const SIG_BLOCK: ::c_int = 0;
++pub const SIG_UNBLOCK: ::c_int = 1;
++pub const POLLWRNORM: ::c_short = 256;
++pub const POLLWRBAND: ::c_short = 512;
++pub const O_ASYNC: ::c_int = 8192;
++pub const O_NDELAY: ::c_int = 2048;
++pub const PTRACE_DETACH: ::c_uint = 17;
++pub const EFD_NONBLOCK: ::c_int = 2048;
++pub const F_GETLK: ::c_int = 5;
++pub const F_GETOWN: ::c_int = 9;
++pub const F_SETOWN: ::c_int = 8;
++pub const F_SETLK: ::c_int = 6;
++pub const F_SETLKW: ::c_int = 7;
++pub const F_RDLCK: ::c_int = 0;
++pub const F_WRLCK: ::c_int = 1;
++pub const F_UNLCK: ::c_int = 2;
++pub const F_OFD_GETLK: ::c_int = 36;
++pub const F_OFD_SETLK: ::c_int = 37;
++pub const F_OFD_SETLKW: ::c_int = 38;
++pub const SFD_NONBLOCK: ::c_int = 2048;
++pub const TCSANOW: ::c_int = 0;
++pub const TCSADRAIN: ::c_int = 1;
++pub const TCSAFLUSH: ::c_int = 2;
++pub const TIOCLINUX: ::c_ulong = 21532;
++pub const TIOCGSERIAL: ::c_ulong = 21534;
++pub const TIOCEXCL: ::c_ulong = 21516;
++pub const TIOCNXCL: ::c_ulong = 21517;
++pub const TIOCSCTTY: ::c_ulong = 21518;
++pub const TIOCSTI: ::c_ulong = 21522;
++pub const TIOCMGET: ::c_ulong = 21525;
++pub const TIOCMBIS: ::c_ulong = 21526;
++pub const TIOCMBIC: ::c_ulong = 21527;
++pub const TIOCMSET: ::c_ulong = 21528;
++pub const TIOCCONS: ::c_ulong = 21533;
++pub const TIOCM_ST: ::c_int = 8;
++pub const TIOCM_SR: ::c_int = 16;
++pub const TIOCM_CTS: ::c_int = 32;
++pub const TIOCM_CAR: ::c_int = 64;
++pub const TIOCM_RNG: ::c_int = 128;
++pub const TIOCM_DSR: ::c_int = 256;
++pub const SFD_CLOEXEC: ::c_int = 524288;
++pub const NCCS: usize = 32;
++pub const O_TRUNC: ::c_int = 512;
++pub const O_CLOEXEC: ::c_int = 524288;
++pub const EBFONT: ::c_int = 59;
++pub const ENOSTR: ::c_int = 60;
++pub const ENODATA: ::c_int = 61;
++pub const ETIME: ::c_int = 62;
++pub const ENOSR: ::c_int = 63;
++pub const ENONET: ::c_int = 64;
++pub const ENOPKG: ::c_int = 65;
++pub const EREMOTE: ::c_int = 66;
++pub const ENOLINK: ::c_int = 67;
++pub const EADV: ::c_int = 68;
++pub const ESRMNT: ::c_int = 69;
++pub const ECOMM: ::c_int = 70;
++pub const EPROTO: ::c_int = 71;
++pub const EDOTDOT: ::c_int = 73;
++pub const SA_NODEFER: ::c_int = 1073741824;
++pub const SA_RESETHAND: ::c_int = -2147483648;
++pub const SA_RESTART: ::c_int = 268435456;
++pub const SA_NOCLDSTOP: ::c_int = 1;
++pub const EPOLL_CLOEXEC: ::c_int = 524288;
++pub const EFD_CLOEXEC: ::c_int = 524288;
++pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4;
++pub const __SIZEOF_PTHREAD_MUTEXATTR_T: usize = 4;
++pub const O_DIRECT: ::c_int = 16384;
++pub const O_DIRECTORY: ::c_int = 65536;
++pub const O_NOFOLLOW: ::c_int = 131072;
++pub const MAP_HUGETLB: ::c_int = 262144;
++pub const MAP_LOCKED: ::c_int = 8192;
++pub const MAP_NORESERVE: ::c_int = 16384;
++pub const MAP_ANON: ::c_int = 32;
++pub const MAP_ANONYMOUS: ::c_int = 32;
++pub const MAP_DENYWRITE: ::c_int = 2048;
++pub const MAP_EXECUTABLE: ::c_int = 4096;
++pub const MAP_POPULATE: ::c_int = 32768;
++pub const MAP_NONBLOCK: ::c_int = 65536;
++pub const MAP_STACK: ::c_int = 131072;
++pub const MAP_SYNC : ::c_int = 0x080000;
++pub const EDEADLOCK: ::c_int = 35;
++pub const EUCLEAN: ::c_int = 117;
++pub const ENOTNAM: ::c_int = 118;
++pub const ENAVAIL: ::c_int = 119;
++pub const EISNAM: ::c_int = 120;
++pub const EREMOTEIO: ::c_int = 121;
++pub const FIOCLEX: ::c_ulong = 21585;
++pub const FIONCLEX: ::c_ulong = 21584;
++pub const FIONBIO: ::c_ulong = 21537;
++pub const MCL_CURRENT: ::c_int = 1;
++pub const MCL_FUTURE: ::c_int = 2;
++pub const SIGSTKSZ: ::size_t = 8192;
++pub const MINSIGSTKSZ: ::size_t = 2048;
++pub const CBAUD: ::tcflag_t = 4111;
++pub const TAB1: ::tcflag_t = 2048;
++pub const TAB2: ::tcflag_t = 4096;
++pub const TAB3: ::tcflag_t = 6144;
++pub const CR1: ::tcflag_t = 512;
++pub const CR2: ::tcflag_t = 1024;
++pub const CR3: ::tcflag_t = 1536;
++pub const FF1: ::tcflag_t = 32768;
++pub const BS1: ::tcflag_t = 8192;
++pub const VT1: ::tcflag_t = 16384;
++pub const VWERASE: usize = 14;
++pub const VREPRINT: usize = 12;
++pub const VSUSP: usize = 10;
++pub const VSTART: usize = 8;
++pub const VSTOP: usize = 9;
++pub const VDISCARD: usize = 13;
++pub const VTIME: usize = 5;
++pub const IXON: ::tcflag_t = 1024;
++pub const IXOFF: ::tcflag_t = 4096;
++pub const ONLCR: ::tcflag_t = 4;
++pub const CSIZE: ::tcflag_t = 48;
++pub const CS6: ::tcflag_t = 16;
++pub const CS7: ::tcflag_t = 32;
++pub const CS8: ::tcflag_t = 48;
++pub const CSTOPB: ::tcflag_t = 64;
++pub const CREAD: ::tcflag_t = 128;
++pub const PARENB: ::tcflag_t = 256;
++pub const PARODD: ::tcflag_t = 512;
++pub const HUPCL: ::tcflag_t = 1024;
++pub const CLOCAL: ::tcflag_t = 2048;
++pub const ECHOKE: ::tcflag_t = 2048;
++pub const ECHOE: ::tcflag_t = 16;
++pub const ECHOK: ::tcflag_t = 32;
++pub const ECHONL: ::tcflag_t = 64;
++pub const ECHOPRT: ::tcflag_t = 1024;
++pub const ECHOCTL: ::tcflag_t = 512;
++pub const ISIG: ::tcflag_t = 1;
++pub const ICANON: ::tcflag_t = 2;
++pub const PENDIN: ::tcflag_t = 16384;
++pub const NOFLSH: ::tcflag_t = 128;
++pub const CIBAUD: ::tcflag_t = 269418496;
++pub const CBAUDEX: ::tcflag_t = 4096;
++pub const VSWTC: usize = 7;
++pub const OLCUC: ::tcflag_t = 2;
++pub const NLDLY: ::tcflag_t = 256;
++pub const CRDLY: ::tcflag_t = 1536;
++pub const TABDLY: ::tcflag_t = 6144;
++pub const BSDLY: ::tcflag_t = 8192;
++pub const FFDLY: ::tcflag_t = 32768;
++pub const VTDLY: ::tcflag_t = 16384;
++pub const XTABS: ::tcflag_t = 6144;
++pub const B0: ::speed_t = 0;
++pub const B50: ::speed_t = 1;
++pub const B75: ::speed_t = 2;
++pub const B110: ::speed_t = 3;
++pub const B134: ::speed_t = 4;
++pub const B150: ::speed_t = 5;
++pub const B200: ::speed_t = 6;
++pub const B300: ::speed_t = 7;
++pub const B600: ::speed_t = 8;
++pub const B1200: ::speed_t = 9;
++pub const B1800: ::speed_t = 10;
++pub const B2400: ::speed_t = 11;
++pub const B4800: ::speed_t = 12;
++pub const B9600: ::speed_t = 13;
++pub const B19200: ::speed_t = 14;
++pub const B38400: ::speed_t = 15;
++pub const EXTA: ::speed_t = 14;
++pub const EXTB: ::speed_t = 15;
++pub const B57600: ::speed_t = 4097;
++pub const B115200: ::speed_t = 4098;
++pub const B230400: ::speed_t = 4099;
++pub const B460800: ::speed_t = 4100;
++pub const B500000: ::speed_t = 4101;
++pub const B576000: ::speed_t = 4102;
++pub const B921600: ::speed_t = 4103;
++pub const B1000000: ::speed_t = 4104;
++pub const B1152000: ::speed_t = 4105;
++pub const B1500000: ::speed_t = 4106;
++pub const B2000000: ::speed_t = 4107;
++pub const B2500000: ::speed_t = 4108;
++pub const B3000000: ::speed_t = 4109;
++pub const B3500000: ::speed_t = 4110;
++pub const B4000000: ::speed_t = 4111;
++pub const VEOL: usize = 11;
++pub const VEOL2: usize = 16;
++pub const VMIN: usize = 6;
++pub const IEXTEN: ::tcflag_t = 32768;
++pub const TOSTOP: ::tcflag_t = 256;
++pub const FLUSHO: ::tcflag_t = 4096;
++pub const EXTPROC: ::tcflag_t = 65536;
++pub const TCGETS: ::c_ulong = 21505;
++pub const TCSETS: ::c_ulong = 21506;
++pub const TCSETSW: ::c_ulong = 21507;
++pub const TCSETSF: ::c_ulong = 21508;
++pub const TCGETA: ::c_ulong = 21509;
++pub const TCSETA: ::c_ulong = 21510;
++pub const TCSETAW: ::c_ulong = 21511;
++pub const TCSETAF: ::c_ulong = 21512;
++pub const TCSBRK: ::c_ulong = 21513;
++pub const TCXONC: ::c_ulong = 21514;
++pub const TCFLSH: ::c_ulong = 21515;
++pub const TIOCINQ: ::c_ulong = 21531;
++pub const TIOCGPGRP: ::c_ulong = 21519;
++pub const TIOCSPGRP: ::c_ulong = 21520;
++pub const TIOCOUTQ: ::c_ulong = 21521;
++pub const TIOCGWINSZ: ::c_ulong = 21523;
++pub const TIOCSWINSZ: ::c_ulong = 21524;
++pub const FIONREAD: ::c_ulong = 21531;
++pub const __SIZEOF_PTHREAD_MUTEX_T: usize = 40;
++pub const __SIZEOF_PTHREAD_RWLOCK_T: usize = 56;
++pub const SYS_read: ::c_long = 63;
++pub const SYS_write: ::c_long = 64;
++pub const SYS_close: ::c_long = 57;
++pub const SYS_fstat: ::c_long = 80;
++pub const SYS_lseek: ::c_long = 62;
++pub const SYS_mmap: ::c_long = 222;
++pub const SYS_mprotect: ::c_long = 226;
++pub const SYS_munmap: ::c_long = 215;
++pub const SYS_brk: ::c_long = 214;
++pub const SYS_rt_sigaction: ::c_long = 134;
++pub const SYS_rt_sigprocmask: ::c_long = 135;
++pub const SYS_rt_sigreturn: ::c_long = 139;
++pub const SYS_ioctl: ::c_long = 29;
++pub const SYS_pread64: ::c_long = 67;
++pub const SYS_pwrite64: ::c_long = 68;
++pub const SYS_readv: ::c_long = 65;
++pub const SYS_writev: ::c_long = 66;
++pub const SYS_sched_yield: ::c_long = 124;
++pub const SYS_mremap: ::c_long = 216;
++pub const SYS_msync: ::c_long = 227;
++pub const SYS_mincore: ::c_long = 232;
++pub const SYS_madvise: ::c_long = 233;
++pub const SYS_shmget: ::c_long = 194;
++pub const SYS_shmat: ::c_long = 196;
++pub const SYS_shmctl: ::c_long = 195;
++pub const SYS_dup: ::c_long = 23;
++pub const SYS_nanosleep: ::c_long = 101;
++pub const SYS_getitimer: ::c_long = 102;
++pub const SYS_setitimer: ::c_long = 103;
++pub const SYS_getpid: ::c_long = 172;
++pub const SYS_sendfile: ::c_long = 71;
++pub const SYS_socket: ::c_long = 198;
++pub const SYS_connect: ::c_long = 203;
++pub const SYS_accept: ::c_long = 202;
++pub const SYS_sendto: ::c_long = 206;
++pub const SYS_recvfrom: ::c_long = 207;
++pub const SYS_sendmsg: ::c_long = 211;
++pub const SYS_recvmsg: ::c_long = 212;
++pub const SYS_shutdown: ::c_long = 210;
++pub const SYS_bind: ::c_long = 200;
++pub const SYS_listen: ::c_long = 201;
++pub const SYS_getsockname: ::c_long = 204;
++pub const SYS_getpeername: ::c_long = 205;
++pub const SYS_socketpair: ::c_long = 199;
++pub const SYS_setsockopt: ::c_long = 208;
++pub const SYS_getsockopt: ::c_long = 209;
++pub const SYS_clone: ::c_long = 220;
++pub const SYS_execve: ::c_long = 221;
++pub const SYS_exit: ::c_long = 93;
++pub const SYS_wait4: ::c_long = 260;
++pub const SYS_kill: ::c_long = 129;
++pub const SYS_uname: ::c_long = 160;
++pub const SYS_semget: ::c_long = 190;
++pub const SYS_semop: ::c_long = 193;
++pub const SYS_semctl: ::c_long = 191;
++pub const SYS_shmdt: ::c_long = 197;
++pub const SYS_msgget: ::c_long = 186;
++pub const SYS_msgsnd: ::c_long = 189;
++pub const SYS_msgrcv: ::c_long = 188;
++pub const SYS_msgctl: ::c_long = 187;
++pub const SYS_fcntl: ::c_long = 25;
++pub const SYS_flock: ::c_long = 32;
++pub const SYS_fsync: ::c_long = 82;
++pub const SYS_fdatasync: ::c_long = 83;
++pub const SYS_truncate: ::c_long = 45;
++pub const SYS_ftruncate: ::c_long = 46;
++pub const SYS_getcwd: ::c_long = 17;
++pub const SYS_chdir: ::c_long = 49;
++pub const SYS_fchdir: ::c_long = 50;
++pub const SYS_fchmod: ::c_long = 52;
++pub const SYS_fchown: ::c_long = 55;
++pub const SYS_umask: ::c_long = 166;
++pub const SYS_gettimeofday: ::c_long = 169;
++pub const SYS_getrlimit: ::c_long = 163;
++pub const SYS_getrusage: ::c_long = 165;
++pub const SYS_sysinfo: ::c_long = 179;
++pub const SYS_times: ::c_long = 153;
++pub const SYS_ptrace: ::c_long = 117;
++pub const SYS_getuid: ::c_long = 174;
++pub const SYS_syslog: ::c_long = 116;
++pub const SYS_getgid: ::c_long = 176;
++pub const SYS_setuid: ::c_long = 146;
++pub const SYS_setgid: ::c_long = 144;
++pub const SYS_geteuid: ::c_long = 175;
++pub const SYS_getegid: ::c_long = 177;
++pub const SYS_setpgid: ::c_long = 154;
++pub const SYS_getppid: ::c_long = 173;
++pub const SYS_setsid: ::c_long = 157;
++pub const SYS_setreuid: ::c_long = 145;
++pub const SYS_setregid: ::c_long = 143;
++pub const SYS_getgroups: ::c_long = 158;
++pub const SYS_setgroups: ::c_long = 159;
++pub const SYS_setresuid: ::c_long = 147;
++pub const SYS_getresuid: ::c_long = 148;
++pub const SYS_setresgid: ::c_long = 149;
++pub const SYS_getresgid: ::c_long = 150;
++pub const SYS_getpgid: ::c_long = 155;
++pub const SYS_setfsuid: ::c_long = 151;
++pub const SYS_setfsgid: ::c_long = 152;
++pub const SYS_getsid: ::c_long = 156;
++pub const SYS_capget: ::c_long = 90;
++pub const SYS_capset: ::c_long = 91;
++pub const SYS_rt_sigpending: ::c_long = 136;
++pub const SYS_rt_sigtimedwait: ::c_long = 137;
++pub const SYS_rt_sigqueueinfo: ::c_long = 138;
++pub const SYS_rt_sigsuspend: ::c_long = 133;
++pub const SYS_sigaltstack: ::c_long = 132;
++pub const SYS_personality: ::c_long = 92;
++pub const SYS_statfs: ::c_long = 43;
++pub const SYS_fstatfs: ::c_long = 44;
++pub const SYS_getpriority: ::c_long = 141;
++pub const SYS_setpriority: ::c_long = 140;
++pub const SYS_sched_setparam: ::c_long = 118;
++pub const SYS_sched_getparam: ::c_long = 121;
++pub const SYS_sched_setscheduler: ::c_long = 119;
++pub const SYS_sched_getscheduler: ::c_long = 120;
++pub const SYS_sched_get_priority_max: ::c_long = 125;
++pub const SYS_sched_get_priority_min: ::c_long = 126;
++pub const SYS_sched_rr_get_interval: ::c_long = 127;
++pub const SYS_mlock: ::c_long = 228;
++pub const SYS_munlock: ::c_long = 229;
++pub const SYS_mlockall: ::c_long = 230;
++pub const SYS_munlockall: ::c_long = 231;
++pub const SYS_vhangup: ::c_long = 58;
++pub const SYS_pivot_root: ::c_long = 41;
++pub const SYS_prctl: ::c_long = 167;
++pub const SYS_adjtimex: ::c_long = 171;
++pub const SYS_setrlimit: ::c_long = 164;
++pub const SYS_chroot: ::c_long = 51;
++pub const SYS_sync: ::c_long = 81;
++pub const SYS_acct: ::c_long = 89;
++pub const SYS_settimeofday: ::c_long = 170;
++pub const SYS_mount: ::c_long = 40;
++pub const SYS_umount2: ::c_long = 39;
++pub const SYS_swapon: ::c_long = 224;
++pub const SYS_swapoff: ::c_long = 225;
++pub const SYS_reboot: ::c_long = 142;
++pub const SYS_sethostname: ::c_long = 161;
++pub const SYS_setdomainname: ::c_long = 162;
++pub const SYS_init_module: ::c_long = 105;
++pub const SYS_delete_module: ::c_long = 106;
++pub const SYS_quotactl: ::c_long = 60;
++pub const SYS_nfsservctl: ::c_long = 42;
++pub const SYS_gettid: ::c_long = 178;
++pub const SYS_readahead: ::c_long = 213;
++pub const SYS_setxattr: ::c_long = 5;
++pub const SYS_lsetxattr: ::c_long = 6;
++pub const SYS_fsetxattr: ::c_long = 7;
++pub const SYS_getxattr: ::c_long = 8;
++pub const SYS_lgetxattr: ::c_long = 9;
++pub const SYS_fgetxattr: ::c_long = 10;
++pub const SYS_listxattr: ::c_long = 11;
++pub const SYS_llistxattr: ::c_long = 12;
++pub const SYS_flistxattr: ::c_long = 13;
++pub const SYS_removexattr: ::c_long = 14;
++pub const SYS_lremovexattr: ::c_long = 15;
++pub const SYS_fremovexattr: ::c_long = 16;
++pub const SYS_tkill: ::c_long = 130;
++pub const SYS_futex: ::c_long = 98;
++pub const SYS_sched_setaffinity: ::c_long = 122;
++pub const SYS_sched_getaffinity: ::c_long = 123;
++pub const SYS_io_setup: ::c_long = 0;
++pub const SYS_io_destroy: ::c_long = 1;
++pub const SYS_io_getevents: ::c_long = 4;
++pub const SYS_io_submit: ::c_long = 2;
++pub const SYS_io_cancel: ::c_long = 3;
++pub const SYS_lookup_dcookie: ::c_long = 18;
++pub const SYS_remap_file_pages: ::c_long = 234;
++pub const SYS_getdents64: ::c_long = 61;
++pub const SYS_set_tid_address: ::c_long = 96;
++pub const SYS_restart_syscall: ::c_long = 128;
++pub const SYS_semtimedop: ::c_long = 192;
++pub const SYS_fadvise64: ::c_long = 223;
++pub const SYS_timer_create: ::c_long = 107;
++pub const SYS_timer_settime: ::c_long = 110;
++pub const SYS_timer_gettime: ::c_long = 108;
++pub const SYS_timer_getoverrun: ::c_long = 109;
++pub const SYS_timer_delete: ::c_long = 111;
++pub const SYS_clock_settime: ::c_long = 112;
++pub const SYS_clock_gettime: ::c_long = 113;
++pub const SYS_clock_getres: ::c_long = 114;
++pub const SYS_clock_nanosleep: ::c_long = 115;
++pub const SYS_exit_group: ::c_long = 94;
++pub const SYS_epoll_ctl: ::c_long = 21;
++pub const SYS_tgkill: ::c_long = 131;
++pub const SYS_mbind: ::c_long = 235;
++pub const SYS_set_mempolicy: ::c_long = 237;
++pub const SYS_get_mempolicy: ::c_long = 236;
++pub const SYS_mq_open: ::c_long = 180;
++pub const SYS_mq_unlink: ::c_long = 181;
++pub const SYS_mq_timedsend: ::c_long = 182;
++pub const SYS_mq_timedreceive: ::c_long = 183;
++pub const SYS_mq_notify: ::c_long = 184;
++pub const SYS_mq_getsetattr: ::c_long = 185;
++pub const SYS_kexec_load: ::c_long = 104;
++pub const SYS_waitid: ::c_long = 95;
++pub const SYS_add_key: ::c_long = 217;
++pub const SYS_request_key: ::c_long = 218;
++pub const SYS_keyctl: ::c_long = 219;
++pub const SYS_ioprio_set: ::c_long = 30;
++pub const SYS_ioprio_get: ::c_long = 31;
++pub const SYS_inotify_add_watch: ::c_long = 27;
++pub const SYS_inotify_rm_watch: ::c_long = 28;
++pub const SYS_migrate_pages: ::c_long = 238;
++pub const SYS_openat: ::c_long = 56;
++pub const SYS_mkdirat: ::c_long = 34;
++pub const SYS_mknodat: ::c_long = 33;
++pub const SYS_fchownat: ::c_long = 54;
++pub const SYS_newfstatat: ::c_long = 79;
++pub const SYS_unlinkat: ::c_long = 35;
++pub const SYS_linkat: ::c_long = 37;
++pub const SYS_symlinkat: ::c_long = 36;
++pub const SYS_readlinkat: ::c_long = 78;
++pub const SYS_fchmodat: ::c_long = 53;
++pub const SYS_faccessat: ::c_long = 48;
++pub const SYS_pselect6: ::c_long = 72;
++pub const SYS_ppoll: ::c_long = 73;
++pub const SYS_unshare: ::c_long = 97;
++pub const SYS_set_robust_list: ::c_long = 99;
++pub const SYS_get_robust_list: ::c_long = 100;
++pub const SYS_splice: ::c_long = 76;
++pub const SYS_tee: ::c_long = 77;
++pub const SYS_sync_file_range: ::c_long = 84;
++pub const SYS_vmsplice: ::c_long = 75;
++pub const SYS_move_pages: ::c_long = 239;
++pub const SYS_utimensat: ::c_long = 88;
++pub const SYS_epoll_pwait: ::c_long = 22;
++pub const SYS_timerfd_create: ::c_long = 85;
++pub const SYS_fallocate: ::c_long = 47;
++pub const SYS_timerfd_settime: ::c_long = 86;
++pub const SYS_timerfd_gettime: ::c_long = 87;
++pub const SYS_accept4: ::c_long = 242;
++pub const SYS_signalfd4: ::c_long = 74;
++pub const SYS_eventfd2: ::c_long = 19;
++pub const SYS_epoll_create1: ::c_long = 20;
++pub const SYS_dup3: ::c_long = 24;
++pub const SYS_pipe2: ::c_long = 59;
++pub const SYS_inotify_init1: ::c_long = 26;
++pub const SYS_preadv: ::c_long = 69;
++pub const SYS_pwritev: ::c_long = 70;
++pub const SYS_rt_tgsigqueueinfo: ::c_long = 240;
++pub const SYS_perf_event_open: ::c_long = 241;
++pub const SYS_recvmmsg: ::c_long = 243;
++pub const SYS_fanotify_init: ::c_long = 262;
++pub const SYS_fanotify_mark: ::c_long = 263;
++pub const SYS_prlimit64: ::c_long = 261;
++pub const SYS_name_to_handle_at: ::c_long = 264;
++pub const SYS_open_by_handle_at: ::c_long = 265;
++pub const SYS_clock_adjtime: ::c_long = 266;
++pub const SYS_syncfs: ::c_long = 267;
++pub const SYS_sendmmsg: ::c_long = 269;
++pub const SYS_setns: ::c_long = 268;
++pub const SYS_getcpu: ::c_long = 168;
++pub const SYS_process_vm_readv: ::c_long = 270;
++pub const SYS_process_vm_writev: ::c_long = 271;
++pub const SYS_kcmp: ::c_long = 272;
++pub const SYS_finit_module: ::c_long = 273;
++pub const SYS_sched_setattr: ::c_long = 274;
++pub const SYS_sched_getattr: ::c_long = 275;
++pub const SYS_renameat2: ::c_long = 276;
++pub const SYS_seccomp: ::c_long = 277;
++pub const SYS_getrandom: ::c_long = 278;
++pub const SYS_memfd_create: ::c_long = 279;
++pub const SYS_bpf: ::c_long = 280;
++pub const SYS_execveat: ::c_long = 281;
++pub const SYS_userfaultfd: ::c_long = 282;
++pub const SYS_membarrier: ::c_long = 283;
++pub const SYS_mlock2: ::c_long = 284;
++pub const SYS_copy_file_range: ::c_long = 285;
++pub const SYS_preadv2: ::c_long = 286;
++pub const SYS_pwritev2: ::c_long = 287;
++pub const SYS_pkey_mprotect: ::c_long = 288;
++pub const SYS_pkey_alloc: ::c_long = 289;
++pub const SYS_pkey_free: ::c_long = 290;
++pub const SYS_statx: ::c_long = 291;
++pub const SYS_pidfd_open: ::c_long = 434;
++pub const SYS_clone3: ::c_long = 435;
+-- 
+2.30.1
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.51.0/0002-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set.patch b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0002-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set.patch
new file mode 100644
index 0000000000..4edc0990c8
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0002-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set.patch
@@ -0,0 +1,29 @@
+From 2f418ff6fbe1dbdd2f56b3e208f3da6d71c0a7e4 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 17 Feb 2021 00:34:05 -0800
+Subject: [PATCH 2/4] FIXUP: linux/musl/mod.rs: add riscv64 to b64 set
+
+https://github.com/rust-lang/libc/pull/1994/commits/30070c822be2ef399b2ba38cdc1d72ac694d65a3
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ vendor/libc/src/unix/linux_like/linux/musl/mod.rs | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/vendor/libc/src/unix/linux_like/linux/musl/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/mod.rs
+index 0d427ae38..d7eb212f7 100644
+--- a/vendor/libc/src/unix/linux_like/linux/musl/mod.rs
++++ b/vendor/libc/src/unix/linux_like/linux/musl/mod.rs
+@@ -601,7 +601,8 @@ cfg_if! {
+     if #[cfg(any(target_arch = "x86_64",
+                  target_arch = "aarch64",
+                  target_arch = "mips64",
+-                 target_arch = "powerpc64"))] {
++                 target_arch = "powerpc64",
++                 target_arch = "riscv64"))] {
+         mod b64;
+         pub use self::b64::*;
+     } else if #[cfg(any(target_arch = "x86",
+-- 
+2.30.1
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.51.0/0003-FIXUP-Correct-definitions-to-match-musl.patch b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0003-FIXUP-Correct-definitions-to-match-musl.patch
new file mode 100644
index 0000000000..51c4b00a6d
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0003-FIXUP-Correct-definitions-to-match-musl.patch
@@ -0,0 +1,740 @@
+From f6a2f444d9deae167f4c939c6e874744986744a1 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 17 Feb 2021 00:34:56 -0800
+Subject: [PATCH 3/4] FIXUP Correct definitions to match musl
+
+https://github.com/rust-lang/libc/pull/1994/commits/5f6a4d9745c79c81be63c708515ab116786554a3
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ .../linux_like/linux/musl/b64/riscv64/mod.rs  | 708 ++++++++----------
+ 1 file changed, 311 insertions(+), 397 deletions(-)
+
+diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+index 14bae11d0..c37190cca 100644
+--- a/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
++++ b/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+@@ -191,403 +191,8 @@ s! {
+         pub l_len: ::off64_t,
+         pub l_pid: ::pid_t,
+     }
+-
+-    pub struct ip_mreqn {
+-        pub imr_multiaddr: ::in_addr,
+-        pub imr_address: ::in_addr,
+-        pub imr_ifindex: ::c_int,
+-    }
+ }
+ 
+-pub const POSIX_FADV_DONTNEED: ::c_int = 4;
+-pub const POSIX_FADV_NOREUSE: ::c_int = 5;
+-pub const VEOF: usize = 4;
+-pub const RTLD_DEEPBIND: ::c_int = 0x8;
+-pub const RTLD_GLOBAL: ::c_int = 0x100;
+-pub const RTLD_NOLOAD: ::c_int = 0x4;
+-pub const TIOCGSOFTCAR: ::c_ulong = 21529;
+-pub const TIOCSSOFTCAR: ::c_ulong = 21530;
+-pub const TIOCGRS485: ::c_int = 21550;
+-pub const TIOCSRS485: ::c_int = 21551;
+-pub const RLIMIT_RSS: ::__rlimit_resource_t = 5;
+-pub const RLIMIT_AS: ::__rlimit_resource_t = 9;
+-pub const RLIMIT_MEMLOCK: ::__rlimit_resource_t = 8;
+-pub const RLIMIT_NOFILE: ::__rlimit_resource_t = 7;
+-pub const RLIMIT_NPROC: ::__rlimit_resource_t = 6;
+-pub const O_APPEND: ::c_int = 1024;
+-pub const O_CREAT: ::c_int = 64;
+-pub const O_EXCL: ::c_int = 128;
+-pub const O_NOCTTY: ::c_int = 256;
+-pub const O_NONBLOCK: ::c_int = 2048;
+-pub const O_SYNC: ::c_int = 1052672;
+-pub const O_RSYNC: ::c_int = 1052672;
+-pub const O_DSYNC: ::c_int = 4096;
+-pub const O_FSYNC: ::c_int = 1052672;
+-pub const O_NOATIME: ::c_int = 262144;
+-pub const O_PATH: ::c_int = 2097152;
+-pub const O_TMPFILE: ::c_int = 4259840;
+-pub const MAP_GROWSDOWN: ::c_int = 256;
+-pub const EDEADLK: ::c_int = 35;
+-pub const ENAMETOOLONG: ::c_int = 36;
+-pub const ENOLCK: ::c_int = 37;
+-pub const ENOSYS: ::c_int = 38;
+-pub const ENOTEMPTY: ::c_int = 39;
+-pub const ELOOP: ::c_int = 40;
+-pub const ENOMSG: ::c_int = 42;
+-pub const EIDRM: ::c_int = 43;
+-pub const ECHRNG: ::c_int = 44;
+-pub const EL2NSYNC: ::c_int = 45;
+-pub const EL3HLT: ::c_int = 46;
+-pub const EL3RST: ::c_int = 47;
+-pub const ELNRNG: ::c_int = 48;
+-pub const EUNATCH: ::c_int = 49;
+-pub const ENOCSI: ::c_int = 50;
+-pub const EL2HLT: ::c_int = 51;
+-pub const EBADE: ::c_int = 52;
+-pub const EBADR: ::c_int = 53;
+-pub const EXFULL: ::c_int = 54;
+-pub const ENOANO: ::c_int = 55;
+-pub const EBADRQC: ::c_int = 56;
+-pub const EBADSLT: ::c_int = 57;
+-pub const EMULTIHOP: ::c_int = 72;
+-pub const EOVERFLOW: ::c_int = 75;
+-pub const ENOTUNIQ: ::c_int = 76;
+-pub const EBADFD: ::c_int = 77;
+-pub const EBADMSG: ::c_int = 74;
+-pub const EREMCHG: ::c_int = 78;
+-pub const ELIBACC: ::c_int = 79;
+-pub const ELIBBAD: ::c_int = 80;
+-pub const ELIBSCN: ::c_int = 81;
+-pub const ELIBMAX: ::c_int = 82;
+-pub const ELIBEXEC: ::c_int = 83;
+-pub const EILSEQ: ::c_int = 84;
+-pub const ERESTART: ::c_int = 85;
+-pub const ESTRPIPE: ::c_int = 86;
+-pub const EUSERS: ::c_int = 87;
+-pub const ENOTSOCK: ::c_int = 88;
+-pub const EDESTADDRREQ: ::c_int = 89;
+-pub const EMSGSIZE: ::c_int = 90;
+-pub const EPROTOTYPE: ::c_int = 91;
+-pub const ENOPROTOOPT: ::c_int = 92;
+-pub const EPROTONOSUPPORT: ::c_int = 93;
+-pub const ESOCKTNOSUPPORT: ::c_int = 94;
+-pub const EOPNOTSUPP: ::c_int = 95;
+-pub const EPFNOSUPPORT: ::c_int = 96;
+-pub const EAFNOSUPPORT: ::c_int = 97;
+-pub const EADDRINUSE: ::c_int = 98;
+-pub const EADDRNOTAVAIL: ::c_int = 99;
+-pub const ENETDOWN: ::c_int = 100;
+-pub const ENETUNREACH: ::c_int = 101;
+-pub const ENETRESET: ::c_int = 102;
+-pub const ECONNABORTED: ::c_int = 103;
+-pub const ECONNRESET: ::c_int = 104;
+-pub const ENOBUFS: ::c_int = 105;
+-pub const EISCONN: ::c_int = 106;
+-pub const ENOTCONN: ::c_int = 107;
+-pub const ESHUTDOWN: ::c_int = 108;
+-pub const ETOOMANYREFS: ::c_int = 109;
+-pub const ETIMEDOUT: ::c_int = 110;
+-pub const ECONNREFUSED: ::c_int = 111;
+-pub const EHOSTDOWN: ::c_int = 112;
+-pub const EHOSTUNREACH: ::c_int = 113;
+-pub const EALREADY: ::c_int = 114;
+-pub const EINPROGRESS: ::c_int = 115;
+-pub const ESTALE: ::c_int = 116;
+-pub const EDQUOT: ::c_int = 122;
+-pub const ENOMEDIUM: ::c_int = 123;
+-pub const EMEDIUMTYPE: ::c_int = 124;
+-pub const ECANCELED: ::c_int = 125;
+-pub const ENOKEY: ::c_int = 126;
+-pub const EKEYEXPIRED: ::c_int = 127;
+-pub const EKEYREVOKED: ::c_int = 128;
+-pub const EKEYREJECTED: ::c_int = 129;
+-pub const EOWNERDEAD: ::c_int = 130;
+-pub const ENOTRECOVERABLE: ::c_int = 131;
+-pub const EHWPOISON: ::c_int = 133;
+-pub const ERFKILL: ::c_int = 132;
+-pub const SOL_SOCKET: ::c_int = 1;
+-pub const SO_REUSEADDR: ::c_int = 2;
+-pub const SO_TYPE: ::c_int = 3;
+-pub const SO_ERROR: ::c_int = 4;
+-pub const SO_DONTROUTE: ::c_int = 5;
+-pub const SO_BROADCAST: ::c_int = 6;
+-pub const SO_SNDBUF: ::c_int = 7;
+-pub const SO_RCVBUF: ::c_int = 8;
+-pub const SO_SNDBUFFORCE: ::c_int = 32;
+-pub const SO_RCVBUFFORCE: ::c_int = 33;
+-pub const SO_KEEPALIVE: ::c_int = 9;
+-pub const SO_OOBINLINE: ::c_int = 10;
+-pub const SO_NO_CHECK: ::c_int = 11;
+-pub const SO_PRIORITY: ::c_int = 12;
+-pub const SO_LINGER: ::c_int = 13;
+-pub const SO_BSDCOMPAT: ::c_int = 14;
+-pub const SO_REUSEPORT: ::c_int = 15;
+-pub const SO_PASSCRED: ::c_int = 16;
+-pub const SO_PEERCRED: ::c_int = 17;
+-pub const SO_RCVLOWAT: ::c_int = 18;
+-pub const SO_SNDLOWAT: ::c_int = 19;
+-pub const SO_RCVTIMEO: ::c_int = 20;
+-pub const SO_SNDTIMEO: ::c_int = 21;
+-pub const SO_SECURITY_AUTHENTICATION: ::c_int = 22;
+-pub const SO_SECURITY_ENCRYPTION_TRANSPORT: ::c_int = 23;
+-pub const SO_SECURITY_ENCRYPTION_NETWORK: ::c_int = 24;
+-pub const SO_BINDTODEVICE: ::c_int = 25;
+-pub const SO_ATTACH_FILTER: ::c_int = 26;
+-pub const SO_DETACH_FILTER: ::c_int = 27;
+-pub const SO_GET_FILTER: ::c_int = 26;
+-pub const SO_PEERNAME: ::c_int = 28;
+-pub const SO_TIMESTAMP: ::c_int = 29;
+-pub const SO_ACCEPTCONN: ::c_int = 30;
+-pub const SO_PEERSEC: ::c_int = 31;
+-pub const SO_PASSSEC: ::c_int = 34;
+-pub const SO_TIMESTAMPNS: ::c_int = 35;
+-pub const SCM_TIMESTAMPNS: ::c_int = 35;
+-pub const SO_MARK: ::c_int = 36;
+-pub const SO_PROTOCOL: ::c_int = 38;
+-pub const SO_DOMAIN: ::c_int = 39;
+-pub const SO_RXQ_OVFL: ::c_int = 40;
+-pub const SO_WIFI_STATUS: ::c_int = 41;
+-pub const SCM_WIFI_STATUS: ::c_int = 41;
+-pub const SO_PEEK_OFF: ::c_int = 42;
+-pub const SO_NOFCS: ::c_int = 43;
+-pub const SO_LOCK_FILTER: ::c_int = 44;
+-pub const SO_SELECT_ERR_QUEUE: ::c_int = 45;
+-pub const SO_BUSY_POLL: ::c_int = 46;
+-pub const SO_MAX_PACING_RATE: ::c_int = 47;
+-pub const SO_BPF_EXTENSIONS: ::c_int = 48;
+-pub const SO_INCOMING_CPU: ::c_int = 49;
+-pub const SO_ATTACH_BPF: ::c_int = 50;
+-pub const SO_DETACH_BPF: ::c_int = 27;
+-pub const SOCK_STREAM: ::c_int = 1;
+-pub const SOCK_DGRAM: ::c_int = 2;
+-pub const SA_ONSTACK: ::c_int = 134217728;
+-pub const SA_SIGINFO: ::c_int = 4;
+-pub const SA_NOCLDWAIT: ::c_int = 2;
+-pub const SIGTTIN: ::c_int = 21;
+-pub const SIGTTOU: ::c_int = 22;
+-pub const SIGXCPU: ::c_int = 24;
+-pub const SIGXFSZ: ::c_int = 25;
+-pub const SIGVTALRM: ::c_int = 26;
+-pub const SIGPROF: ::c_int = 27;
+-pub const SIGWINCH: ::c_int = 28;
+-pub const SIGCHLD: ::c_int = 17;
+-pub const SIGBUS: ::c_int = 7;
+-pub const SIGUSR1: ::c_int = 10;
+-pub const SIGUSR2: ::c_int = 12;
+-pub const SIGCONT: ::c_int = 18;
+-pub const SIGSTOP: ::c_int = 19;
+-pub const SIGTSTP: ::c_int = 20;
+-pub const SIGURG: ::c_int = 23;
+-pub const SIGIO: ::c_int = 29;
+-pub const SIGSYS: ::c_int = 31;
+-pub const SIGSTKFLT: ::c_int = 16;
+-pub const SIGPOLL: ::c_int = 29;
+-pub const SIGPWR: ::c_int = 30;
+-pub const SIG_SETMASK: ::c_int = 2;
+-pub const SIG_BLOCK: ::c_int = 0;
+-pub const SIG_UNBLOCK: ::c_int = 1;
+-pub const POLLWRNORM: ::c_short = 256;
+-pub const POLLWRBAND: ::c_short = 512;
+-pub const O_ASYNC: ::c_int = 8192;
+-pub const O_NDELAY: ::c_int = 2048;
+-pub const PTRACE_DETACH: ::c_uint = 17;
+-pub const EFD_NONBLOCK: ::c_int = 2048;
+-pub const F_GETLK: ::c_int = 5;
+-pub const F_GETOWN: ::c_int = 9;
+-pub const F_SETOWN: ::c_int = 8;
+-pub const F_SETLK: ::c_int = 6;
+-pub const F_SETLKW: ::c_int = 7;
+-pub const F_RDLCK: ::c_int = 0;
+-pub const F_WRLCK: ::c_int = 1;
+-pub const F_UNLCK: ::c_int = 2;
+-pub const F_OFD_GETLK: ::c_int = 36;
+-pub const F_OFD_SETLK: ::c_int = 37;
+-pub const F_OFD_SETLKW: ::c_int = 38;
+-pub const SFD_NONBLOCK: ::c_int = 2048;
+-pub const TCSANOW: ::c_int = 0;
+-pub const TCSADRAIN: ::c_int = 1;
+-pub const TCSAFLUSH: ::c_int = 2;
+-pub const TIOCLINUX: ::c_ulong = 21532;
+-pub const TIOCGSERIAL: ::c_ulong = 21534;
+-pub const TIOCEXCL: ::c_ulong = 21516;
+-pub const TIOCNXCL: ::c_ulong = 21517;
+-pub const TIOCSCTTY: ::c_ulong = 21518;
+-pub const TIOCSTI: ::c_ulong = 21522;
+-pub const TIOCMGET: ::c_ulong = 21525;
+-pub const TIOCMBIS: ::c_ulong = 21526;
+-pub const TIOCMBIC: ::c_ulong = 21527;
+-pub const TIOCMSET: ::c_ulong = 21528;
+-pub const TIOCCONS: ::c_ulong = 21533;
+-pub const TIOCM_ST: ::c_int = 8;
+-pub const TIOCM_SR: ::c_int = 16;
+-pub const TIOCM_CTS: ::c_int = 32;
+-pub const TIOCM_CAR: ::c_int = 64;
+-pub const TIOCM_RNG: ::c_int = 128;
+-pub const TIOCM_DSR: ::c_int = 256;
+-pub const SFD_CLOEXEC: ::c_int = 524288;
+-pub const NCCS: usize = 32;
+-pub const O_TRUNC: ::c_int = 512;
+-pub const O_CLOEXEC: ::c_int = 524288;
+-pub const EBFONT: ::c_int = 59;
+-pub const ENOSTR: ::c_int = 60;
+-pub const ENODATA: ::c_int = 61;
+-pub const ETIME: ::c_int = 62;
+-pub const ENOSR: ::c_int = 63;
+-pub const ENONET: ::c_int = 64;
+-pub const ENOPKG: ::c_int = 65;
+-pub const EREMOTE: ::c_int = 66;
+-pub const ENOLINK: ::c_int = 67;
+-pub const EADV: ::c_int = 68;
+-pub const ESRMNT: ::c_int = 69;
+-pub const ECOMM: ::c_int = 70;
+-pub const EPROTO: ::c_int = 71;
+-pub const EDOTDOT: ::c_int = 73;
+-pub const SA_NODEFER: ::c_int = 1073741824;
+-pub const SA_RESETHAND: ::c_int = -2147483648;
+-pub const SA_RESTART: ::c_int = 268435456;
+-pub const SA_NOCLDSTOP: ::c_int = 1;
+-pub const EPOLL_CLOEXEC: ::c_int = 524288;
+-pub const EFD_CLOEXEC: ::c_int = 524288;
+-pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4;
+-pub const __SIZEOF_PTHREAD_MUTEXATTR_T: usize = 4;
+-pub const O_DIRECT: ::c_int = 16384;
+-pub const O_DIRECTORY: ::c_int = 65536;
+-pub const O_NOFOLLOW: ::c_int = 131072;
+-pub const MAP_HUGETLB: ::c_int = 262144;
+-pub const MAP_LOCKED: ::c_int = 8192;
+-pub const MAP_NORESERVE: ::c_int = 16384;
+-pub const MAP_ANON: ::c_int = 32;
+-pub const MAP_ANONYMOUS: ::c_int = 32;
+-pub const MAP_DENYWRITE: ::c_int = 2048;
+-pub const MAP_EXECUTABLE: ::c_int = 4096;
+-pub const MAP_POPULATE: ::c_int = 32768;
+-pub const MAP_NONBLOCK: ::c_int = 65536;
+-pub const MAP_STACK: ::c_int = 131072;
+-pub const MAP_SYNC : ::c_int = 0x080000;
+-pub const EDEADLOCK: ::c_int = 35;
+-pub const EUCLEAN: ::c_int = 117;
+-pub const ENOTNAM: ::c_int = 118;
+-pub const ENAVAIL: ::c_int = 119;
+-pub const EISNAM: ::c_int = 120;
+-pub const EREMOTEIO: ::c_int = 121;
+-pub const FIOCLEX: ::c_ulong = 21585;
+-pub const FIONCLEX: ::c_ulong = 21584;
+-pub const FIONBIO: ::c_ulong = 21537;
+-pub const MCL_CURRENT: ::c_int = 1;
+-pub const MCL_FUTURE: ::c_int = 2;
+-pub const SIGSTKSZ: ::size_t = 8192;
+-pub const MINSIGSTKSZ: ::size_t = 2048;
+-pub const CBAUD: ::tcflag_t = 4111;
+-pub const TAB1: ::tcflag_t = 2048;
+-pub const TAB2: ::tcflag_t = 4096;
+-pub const TAB3: ::tcflag_t = 6144;
+-pub const CR1: ::tcflag_t = 512;
+-pub const CR2: ::tcflag_t = 1024;
+-pub const CR3: ::tcflag_t = 1536;
+-pub const FF1: ::tcflag_t = 32768;
+-pub const BS1: ::tcflag_t = 8192;
+-pub const VT1: ::tcflag_t = 16384;
+-pub const VWERASE: usize = 14;
+-pub const VREPRINT: usize = 12;
+-pub const VSUSP: usize = 10;
+-pub const VSTART: usize = 8;
+-pub const VSTOP: usize = 9;
+-pub const VDISCARD: usize = 13;
+-pub const VTIME: usize = 5;
+-pub const IXON: ::tcflag_t = 1024;
+-pub const IXOFF: ::tcflag_t = 4096;
+-pub const ONLCR: ::tcflag_t = 4;
+-pub const CSIZE: ::tcflag_t = 48;
+-pub const CS6: ::tcflag_t = 16;
+-pub const CS7: ::tcflag_t = 32;
+-pub const CS8: ::tcflag_t = 48;
+-pub const CSTOPB: ::tcflag_t = 64;
+-pub const CREAD: ::tcflag_t = 128;
+-pub const PARENB: ::tcflag_t = 256;
+-pub const PARODD: ::tcflag_t = 512;
+-pub const HUPCL: ::tcflag_t = 1024;
+-pub const CLOCAL: ::tcflag_t = 2048;
+-pub const ECHOKE: ::tcflag_t = 2048;
+-pub const ECHOE: ::tcflag_t = 16;
+-pub const ECHOK: ::tcflag_t = 32;
+-pub const ECHONL: ::tcflag_t = 64;
+-pub const ECHOPRT: ::tcflag_t = 1024;
+-pub const ECHOCTL: ::tcflag_t = 512;
+-pub const ISIG: ::tcflag_t = 1;
+-pub const ICANON: ::tcflag_t = 2;
+-pub const PENDIN: ::tcflag_t = 16384;
+-pub const NOFLSH: ::tcflag_t = 128;
+-pub const CIBAUD: ::tcflag_t = 269418496;
+-pub const CBAUDEX: ::tcflag_t = 4096;
+-pub const VSWTC: usize = 7;
+-pub const OLCUC: ::tcflag_t = 2;
+-pub const NLDLY: ::tcflag_t = 256;
+-pub const CRDLY: ::tcflag_t = 1536;
+-pub const TABDLY: ::tcflag_t = 6144;
+-pub const BSDLY: ::tcflag_t = 8192;
+-pub const FFDLY: ::tcflag_t = 32768;
+-pub const VTDLY: ::tcflag_t = 16384;
+-pub const XTABS: ::tcflag_t = 6144;
+-pub const B0: ::speed_t = 0;
+-pub const B50: ::speed_t = 1;
+-pub const B75: ::speed_t = 2;
+-pub const B110: ::speed_t = 3;
+-pub const B134: ::speed_t = 4;
+-pub const B150: ::speed_t = 5;
+-pub const B200: ::speed_t = 6;
+-pub const B300: ::speed_t = 7;
+-pub const B600: ::speed_t = 8;
+-pub const B1200: ::speed_t = 9;
+-pub const B1800: ::speed_t = 10;
+-pub const B2400: ::speed_t = 11;
+-pub const B4800: ::speed_t = 12;
+-pub const B9600: ::speed_t = 13;
+-pub const B19200: ::speed_t = 14;
+-pub const B38400: ::speed_t = 15;
+-pub const EXTA: ::speed_t = 14;
+-pub const EXTB: ::speed_t = 15;
+-pub const B57600: ::speed_t = 4097;
+-pub const B115200: ::speed_t = 4098;
+-pub const B230400: ::speed_t = 4099;
+-pub const B460800: ::speed_t = 4100;
+-pub const B500000: ::speed_t = 4101;
+-pub const B576000: ::speed_t = 4102;
+-pub const B921600: ::speed_t = 4103;
+-pub const B1000000: ::speed_t = 4104;
+-pub const B1152000: ::speed_t = 4105;
+-pub const B1500000: ::speed_t = 4106;
+-pub const B2000000: ::speed_t = 4107;
+-pub const B2500000: ::speed_t = 4108;
+-pub const B3000000: ::speed_t = 4109;
+-pub const B3500000: ::speed_t = 4110;
+-pub const B4000000: ::speed_t = 4111;
+-pub const VEOL: usize = 11;
+-pub const VEOL2: usize = 16;
+-pub const VMIN: usize = 6;
+-pub const IEXTEN: ::tcflag_t = 32768;
+-pub const TOSTOP: ::tcflag_t = 256;
+-pub const FLUSHO: ::tcflag_t = 4096;
+-pub const EXTPROC: ::tcflag_t = 65536;
+-pub const TCGETS: ::c_ulong = 21505;
+-pub const TCSETS: ::c_ulong = 21506;
+-pub const TCSETSW: ::c_ulong = 21507;
+-pub const TCSETSF: ::c_ulong = 21508;
+-pub const TCGETA: ::c_ulong = 21509;
+-pub const TCSETA: ::c_ulong = 21510;
+-pub const TCSETAW: ::c_ulong = 21511;
+-pub const TCSETAF: ::c_ulong = 21512;
+-pub const TCSBRK: ::c_ulong = 21513;
+-pub const TCXONC: ::c_ulong = 21514;
+-pub const TCFLSH: ::c_ulong = 21515;
+-pub const TIOCINQ: ::c_ulong = 21531;
+-pub const TIOCGPGRP: ::c_ulong = 21519;
+-pub const TIOCSPGRP: ::c_ulong = 21520;
+-pub const TIOCOUTQ: ::c_ulong = 21521;
+-pub const TIOCGWINSZ: ::c_ulong = 21523;
+-pub const TIOCSWINSZ: ::c_ulong = 21524;
+-pub const FIONREAD: ::c_ulong = 21531;
+-pub const __SIZEOF_PTHREAD_MUTEX_T: usize = 40;
+-pub const __SIZEOF_PTHREAD_RWLOCK_T: usize = 56;
+ pub const SYS_read: ::c_long = 63;
+ pub const SYS_write: ::c_long = 64;
+ pub const SYS_close: ::c_long = 57;
+@@ -863,5 +468,314 @@ pub const SYS_pkey_mprotect: ::c_long = 288;
+ pub const SYS_pkey_alloc: ::c_long = 289;
+ pub const SYS_pkey_free: ::c_long = 290;
+ pub const SYS_statx: ::c_long = 291;
+-pub const SYS_pidfd_open: ::c_long = 434;
+-pub const SYS_clone3: ::c_long = 435;
++
++pub const O_APPEND: ::c_int = 1024;
++pub const O_DIRECT: ::c_int = 0x4000;
++pub const O_DIRECTORY: ::c_int = 0x10000;
++pub const O_LARGEFILE: ::c_int = 0;
++pub const O_NOFOLLOW: ::c_int = 0x20000;
++pub const O_CREAT: ::c_int = 64;
++pub const O_EXCL: ::c_int = 128;
++pub const O_NOCTTY: ::c_int = 256;
++pub const O_NONBLOCK: ::c_int = 2048;
++pub const O_SYNC: ::c_int = 1052672;
++pub const O_RSYNC: ::c_int = 1052672;
++pub const O_DSYNC: ::c_int = 4096;
++pub const O_ASYNC: ::c_int = 0x2000;
++
++pub const TIOCGRS485: ::c_int = 0x542E;
++pub const TIOCSRS485: ::c_int = 0x542F;
++
++pub const SIGSTKSZ: ::size_t = 8192;
++pub const MINSIGSTKSZ: ::size_t = 2048;
++
++pub const ENAMETOOLONG: ::c_int = 36;
++pub const ENOLCK: ::c_int = 37;
++pub const ENOSYS: ::c_int = 38;
++pub const ENOTEMPTY: ::c_int = 39;
++pub const ELOOP: ::c_int = 40;
++pub const ENOMSG: ::c_int = 42;
++pub const EIDRM: ::c_int = 43;
++pub const ECHRNG: ::c_int = 44;
++pub const EL2NSYNC: ::c_int = 45;
++pub const EL3HLT: ::c_int = 46;
++pub const EL3RST: ::c_int = 47;
++pub const ELNRNG: ::c_int = 48;
++pub const EUNATCH: ::c_int = 49;
++pub const ENOCSI: ::c_int = 50;
++pub const EL2HLT: ::c_int = 51;
++pub const EBADE: ::c_int = 52;
++pub const EBADR: ::c_int = 53;
++pub const EXFULL: ::c_int = 54;
++pub const ENOANO: ::c_int = 55;
++pub const EBADRQC: ::c_int = 56;
++pub const EBADSLT: ::c_int = 57;
++pub const EMULTIHOP: ::c_int = 72;
++pub const EOVERFLOW: ::c_int = 75;
++pub const ENOTUNIQ: ::c_int = 76;
++pub const EBADFD: ::c_int = 77;
++pub const EBADMSG: ::c_int = 74;
++pub const EREMCHG: ::c_int = 78;
++pub const ELIBACC: ::c_int = 79;
++pub const ELIBBAD: ::c_int = 80;
++pub const ELIBSCN: ::c_int = 81;
++pub const ELIBMAX: ::c_int = 82;
++pub const ELIBEXEC: ::c_int = 83;
++pub const EILSEQ: ::c_int = 84;
++pub const ERESTART: ::c_int = 85;
++pub const ESTRPIPE: ::c_int = 86;
++pub const EUSERS: ::c_int = 87;
++pub const ENOTSOCK: ::c_int = 88;
++pub const EDESTADDRREQ: ::c_int = 89;
++pub const EMSGSIZE: ::c_int = 90;
++pub const EPROTOTYPE: ::c_int = 91;
++pub const ENOPROTOOPT: ::c_int = 92;
++pub const EPROTONOSUPPORT: ::c_int = 93;
++pub const ESOCKTNOSUPPORT: ::c_int = 94;
++pub const EOPNOTSUPP: ::c_int = 95;
++pub const EPFNOSUPPORT: ::c_int = 96;
++pub const EAFNOSUPPORT: ::c_int = 97;
++pub const EADDRINUSE: ::c_int = 98;
++pub const EADDRNOTAVAIL: ::c_int = 99;
++pub const ENETDOWN: ::c_int = 100;
++pub const ENETUNREACH: ::c_int = 101;
++pub const ENETRESET: ::c_int = 102;
++pub const ECONNABORTED: ::c_int = 103;
++pub const ECONNRESET: ::c_int = 104;
++pub const ENOBUFS: ::c_int = 105;
++pub const EISCONN: ::c_int = 106;
++pub const ENOTCONN: ::c_int = 107;
++pub const ESHUTDOWN: ::c_int = 108;
++pub const ETOOMANYREFS: ::c_int = 109;
++pub const ETIMEDOUT: ::c_int = 110;
++pub const ECONNREFUSED: ::c_int = 111;
++pub const EHOSTDOWN: ::c_int = 112;
++pub const EHOSTUNREACH: ::c_int = 113;
++pub const EALREADY: ::c_int = 114;
++pub const EINPROGRESS: ::c_int = 115;
++pub const ESTALE: ::c_int = 116;
++pub const EDQUOT: ::c_int = 122;
++pub const ENOMEDIUM: ::c_int = 123;
++pub const EMEDIUMTYPE: ::c_int = 124;
++pub const ECANCELED: ::c_int = 125;
++pub const ENOKEY: ::c_int = 126;
++pub const EKEYEXPIRED: ::c_int = 127;
++pub const EKEYREVOKED: ::c_int = 128;
++pub const EKEYREJECTED: ::c_int = 129;
++pub const EOWNERDEAD: ::c_int = 130;
++pub const ENOTRECOVERABLE: ::c_int = 131;
++pub const EHWPOISON: ::c_int = 133;
++pub const ERFKILL: ::c_int = 132;
++
++pub const SA_ONSTACK: ::c_int = 0x08000000;
++pub const SA_SIGINFO: ::c_int = 0x00000004;
++pub const SA_NOCLDWAIT: ::c_int = 0x00000002;
++
++pub const SIGCHLD: ::c_int = 17;
++pub const SIGBUS: ::c_int = 7;
++pub const SIGTTIN: ::c_int = 21;
++pub const SIGTTOU: ::c_int = 22;
++pub const SIGXCPU: ::c_int = 24;
++pub const SIGXFSZ: ::c_int = 25;
++pub const SIGVTALRM: ::c_int = 26;
++pub const SIGPROF: ::c_int = 27;
++pub const SIGWINCH: ::c_int = 28;
++pub const SIGUSR1: ::c_int = 10;
++pub const SIGUSR2: ::c_int = 12;
++pub const SIGCONT: ::c_int = 18;
++pub const SIGSTOP: ::c_int = 19;
++pub const SIGTSTP: ::c_int = 20;
++pub const SIGURG: ::c_int = 23;
++pub const SIGIO: ::c_int = 29;
++pub const SIGSYS: ::c_int = 31;
++pub const SIGSTKFLT: ::c_int = 16;
++pub const SIGPOLL: ::c_int = 29;
++pub const SIGPWR: ::c_int = 30;
++pub const SIG_SETMASK: ::c_int = 2;
++pub const SIG_BLOCK: ::c_int = 0x000000;
++pub const SIG_UNBLOCK: ::c_int = 0x01;
++
++pub const F_GETLK: ::c_int = 5;
++pub const F_GETOWN: ::c_int = 9;
++pub const F_SETLK: ::c_int = 6;
++pub const F_SETLKW: ::c_int = 7;
++pub const F_SETOWN: ::c_int = 8;
++pub const F_OFD_GETLK: ::c_int = 36;
++pub const F_OFD_SETLK: ::c_int = 37;
++pub const F_OFD_SETLKW: ::c_int = 38;
++
++pub const VEOF: usize = 4;
++
++pub const POLLWRNORM: ::c_short = 0x100;
++pub const POLLWRBAND: ::c_short = 0x200;
++
++pub const SOCK_STREAM: ::c_int = 1;
++pub const SOCK_DGRAM: ::c_int = 2;
++pub const SOL_SOCKET: ::c_int = 1;
++pub const SO_REUSEADDR: ::c_int = 2;
++pub const SO_TYPE: ::c_int = 3;
++pub const SO_ERROR: ::c_int = 4;
++pub const SO_DONTROUTE: ::c_int = 5;
++pub const SO_BROADCAST: ::c_int = 6;
++pub const SO_SNDBUF: ::c_int = 7;
++pub const SO_RCVBUF: ::c_int = 8;
++pub const SO_KEEPALIVE: ::c_int = 9;
++pub const SO_OOBINLINE: ::c_int = 10;
++pub const SO_NO_CHECK: ::c_int = 11;
++pub const SO_PRIORITY: ::c_int = 12;
++pub const SO_LINGER: ::c_int = 13;
++pub const SO_BSDCOMPAT: ::c_int = 14;
++pub const SO_REUSEPORT: ::c_int = 15;
++pub const SO_ACCEPTCONN: ::c_int = 30;
++pub const SO_SNDBUFFORCE: ::c_int = 32;
++pub const SO_RCVBUFFORCE: ::c_int = 33;
++pub const SO_PROTOCOL: ::c_int = 38;
++pub const SO_DOMAIN: ::c_int = 39;
++
++pub const MAP_ANON: ::c_int = 0x0020;
++pub const MAP_GROWSDOWN: ::c_int = 0x0100;
++pub const MAP_DENYWRITE: ::c_int = 0x0800;
++pub const MAP_EXECUTABLE: ::c_int = 0x01000;
++pub const MAP_LOCKED: ::c_int = 0x02000;
++pub const MAP_NORESERVE: ::c_int = 0x04000;
++pub const MAP_POPULATE: ::c_int = 0x08000;
++pub const MAP_NONBLOCK: ::c_int = 0x010000;
++pub const MAP_STACK: ::c_int = 0x020000;
++pub const MAP_HUGETLB: ::c_int = 0x040000;
++pub const MAP_SYNC : ::c_int = 0x080000;
++
++pub const RLIMIT_NLIMITS: ::c_int = 15;
++pub const TIOCINQ: ::c_int = ::FIONREAD;
++pub const MCL_CURRENT: ::c_int = 0x0001;
++pub const MCL_FUTURE: ::c_int = 0x0002;
++pub const CBAUD: ::tcflag_t = 0o0010017;
++pub const TAB1: ::c_int = 0x00000800;
++pub const TAB2: ::c_int = 0x00001000;
++pub const TAB3: ::c_int = 0x00001800;
++pub const CR1: ::c_int = 0x00000200;
++pub const CR2: ::c_int = 0x00000400;
++pub const CR3: ::c_int = 0x00000600;
++pub const FF1: ::c_int = 0x00008000;
++pub const BS1: ::c_int = 0x00002000;
++pub const VT1: ::c_int = 0x00004000;
++pub const VWERASE: usize = 14;
++pub const VREPRINT: usize = 12;
++pub const VSUSP: usize = 10;
++pub const VSTART: usize = 8;
++pub const VSTOP: usize = 9;
++pub const VDISCARD: usize = 13;
++pub const VTIME: usize = 5;
++pub const IXON: ::tcflag_t = 0x00000400;
++pub const IXOFF: ::tcflag_t = 0x00001000;
++pub const ONLCR: ::tcflag_t = 0x4;
++pub const CSIZE: ::tcflag_t = 0x00000030;
++pub const CS6: ::tcflag_t = 0x00000010;
++pub const CS7: ::tcflag_t = 0x00000020;
++pub const CS8: ::tcflag_t = 0x00000030;
++pub const CSTOPB: ::tcflag_t = 0x00000040;
++pub const CREAD: ::tcflag_t = 0x00000080;
++pub const PARENB: ::tcflag_t = 0x00000100;
++pub const PARODD: ::tcflag_t = 0x00000200;
++pub const HUPCL: ::tcflag_t = 0x00000400;
++pub const CLOCAL: ::tcflag_t = 0x00000800;
++pub const ECHOKE: ::tcflag_t = 0x00000800;
++pub const ECHOE: ::tcflag_t = 0x00000010;
++pub const ECHOK: ::tcflag_t = 0x00000020;
++pub const ECHONL: ::tcflag_t = 0x00000040;
++pub const ECHOPRT: ::tcflag_t = 0x00000400;
++pub const ECHOCTL: ::tcflag_t = 0x00000200;
++pub const ISIG: ::tcflag_t = 0x00000001;
++pub const ICANON: ::tcflag_t = 0x00000002;
++pub const PENDIN: ::tcflag_t = 0x00004000;
++pub const NOFLSH: ::tcflag_t = 0x00000080;
++pub const CIBAUD: ::tcflag_t = 0o02003600000;
++pub const CBAUDEX: ::tcflag_t = 0o010000;
++pub const VSWTC: usize = 7;
++pub const OLCUC: ::tcflag_t = 0o000002;
++pub const NLDLY: ::tcflag_t = 0o000400;
++pub const CRDLY: ::tcflag_t = 0o003000;
++pub const TABDLY: ::tcflag_t = 0o014000;
++pub const BSDLY: ::tcflag_t = 0o020000;
++pub const FFDLY: ::tcflag_t = 0o100000;
++pub const VTDLY: ::tcflag_t = 0o040000;
++pub const XTABS: ::tcflag_t = 0o014000;
++pub const B57600: ::speed_t = 0o010001;
++pub const B115200: ::speed_t = 0o010002;
++pub const B230400: ::speed_t = 0o010003;
++pub const B460800: ::speed_t = 0o010004;
++pub const B500000: ::speed_t = 0o010005;
++pub const B576000: ::speed_t = 0o010006;
++pub const B921600: ::speed_t = 0o010007;
++pub const B1000000: ::speed_t = 0o010010;
++pub const B1152000: ::speed_t = 0o010011;
++pub const B1500000: ::speed_t = 0o010012;
++pub const B2000000: ::speed_t = 0o010013;
++pub const B2500000: ::speed_t = 0o010014;
++pub const B3000000: ::speed_t = 0o010015;
++pub const B3500000: ::speed_t = 0o010016;
++pub const B4000000: ::speed_t = 0o010017;
++
++pub const FIOCLEX: ::c_int = 0x5451;
++pub const FIONCLEX: ::c_int = 0x5450;
++pub const FIONBIO: ::c_int = 0x5421;
++pub const EDEADLK: ::c_int = 35;
++pub const EDEADLOCK: ::c_int = EDEADLK;
++pub const SO_PASSCRED: ::c_int = 16;
++pub const SO_PEERCRED: ::c_int = 17;
++pub const SO_RCVLOWAT: ::c_int = 18;
++pub const SO_SNDLOWAT: ::c_int = 19;
++pub const SO_RCVTIMEO: ::c_int = 20;
++pub const SO_SNDTIMEO: ::c_int = 21;
++pub const EXTPROC: ::tcflag_t = 0x00010000;
++pub const VEOL: usize = 11;
++pub const VEOL2: usize = 16;
++pub const VMIN: usize = 6;
++pub const IEXTEN: ::tcflag_t = 0x00008000;
++pub const TOSTOP: ::tcflag_t = 0x00000100;
++pub const FLUSHO: ::tcflag_t = 0x00001000;
++pub const TCGETS: ::c_int = 0x5401;
++pub const TCSETS: ::c_int = 0x5402;
++pub const TCSETSW: ::c_int = 0x5403;
++pub const TCSETSF: ::c_int = 0x5404;
++pub const TCGETA: ::c_int = 0x5405;
++pub const TCSETA: ::c_int = 0x5406;
++pub const TCSETAW: ::c_int = 0x5407;
++pub const TCSETAF: ::c_int = 0x5408;
++pub const TCSBRK: ::c_int = 0x5409;
++pub const TCXONC: ::c_int = 0x540A;
++pub const TCFLSH: ::c_int = 0x540B;
++pub const TIOCGSOFTCAR: ::c_int = 0x5419;
++pub const TIOCSSOFTCAR: ::c_int = 0x541A;
++pub const TIOCLINUX: ::c_int = 0x541C;
++pub const TIOCGSERIAL: ::c_int = 0x541E;
++pub const TIOCEXCL: ::c_int = 0x540C;
++pub const TIOCNXCL: ::c_int = 0x540D;
++pub const TIOCSCTTY: ::c_int = 0x540E;
++pub const TIOCGPGRP: ::c_int = 0x540F;
++pub const TIOCSPGRP: ::c_int = 0x5410;
++pub const TIOCOUTQ: ::c_int = 0x5411;
++pub const TIOCSTI: ::c_int = 0x5412;
++pub const TIOCGWINSZ: ::c_int = 0x5413;
++pub const TIOCSWINSZ: ::c_int = 0x5414;
++pub const TIOCMGET: ::c_int = 0x5415;
++pub const TIOCMBIS: ::c_int = 0x5416;
++pub const TIOCMBIC: ::c_int = 0x5417;
++pub const TIOCMSET: ::c_int = 0x5418;
++pub const FIONREAD: ::c_int = 0x541B;
++pub const TIOCCONS: ::c_int = 0x541D;
++
++pub const TIOCM_LE: ::c_int = 0x001;
++pub const TIOCM_DTR: ::c_int = 0x002;
++pub const TIOCM_RTS: ::c_int = 0x004;
++pub const TIOCM_ST: ::c_int = 0x008;
++pub const TIOCM_SR: ::c_int = 0x010;
++pub const TIOCM_CTS: ::c_int = 0x020;
++pub const TIOCM_CAR: ::c_int = 0x040;
++pub const TIOCM_RNG: ::c_int = 0x080;
++pub const TIOCM_DSR: ::c_int = 0x100;
++pub const TIOCM_CD: ::c_int = TIOCM_CAR;
++pub const TIOCM_RI: ::c_int = TIOCM_RNG;
++
++extern "C" {
++    pub fn ioctl(fd: ::c_int, request: ::c_int, ...) -> ::c_int;
++}
+-- 
+2.30.1
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.51.0/0004-Update-1.51.0-checksums-for-modified-files.patch b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0004-Update-1.51.0-checksums-for-modified-files.patch
new file mode 100644
index 0000000000..5102956fc4
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0004-Update-1.51.0-checksums-for-modified-files.patch
@@ -0,0 +1,21 @@
+From 2a4fd6cb31072f0423980d034cdd2bd0e095ae43 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sun, 28 Mar 2021 00:46:39 -0700
+Subject: [PATCH] Update checksums for modified files
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ vendor/libc/.cargo-checksum.json | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/vendor/libc/.cargo-checksum.json b/vendor/libc/.cargo-checksum.json
+index 81e7ff477..491096135 100644
+--- a/vendor/libc/.cargo-checksum.json
++++ b/vendor/libc/.cargo-checksum.json
+@@ -1 +1 @@
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+-- 
+2.31.1
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.51.0/0004-Update-checksums-for-modified-files.patch b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0004-Update-checksums-for-modified-files.patch
new file mode 100644
index 0000000000..ffc4666be7
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.51.0/0004-Update-checksums-for-modified-files.patch
@@ -0,0 +1,21 @@
+From 17c0fbd7a60c49189c22a8deb2070cdc76b97110 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 17 Feb 2021 00:55:52 -0800
+Subject: [PATCH 4/4] Update checksums for modified files
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ vendor/libc/.cargo-checksum.json | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/vendor/libc/.cargo-checksum.json b/vendor/libc/.cargo-checksum.json
+index 083640d91..0dcb9cc6c 100644
+--- a/vendor/libc/.cargo-checksum.json
++++ b/vendor/libc/.cargo-checksum.json
+@@ -1 +1 @@
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,"src/unix/uclibc/align.rs":"a8540e1cce5913a45bc8d7422b79e86c0b12740e8a679478e0e4d863a31f8cc1","src/unix/uclibc/arm/align.rs":"e4a3c27fe20a57b8d612c34cb05bc70646edb5cec7251957315afa53a7b9f936","src/unix/uclibc/arm/mod.rs":"d67dd46bc6f417169fc6a23832bde7ccdafc5d1bcb08b10debdd82edaf75d529","src/unix/uclibc/arm/no_align.rs":"9cd223135de75315840ff9c3fd5441ba1cb632b96b5c85a76f8316c86653db25","src/unix/uclibc/mips/mips32/align.rs":"e4a3c27fe20a57b8d612c34cb05bc70646edb5cec7251957315afa53a7b9f936","src/unix/uclibc/mips/mips32/mod.rs":"a045ebc6619f540adf670b88a987abd2d6e42e440a552e8cfe9f8c77f397e873","src/unix/uclibc/mips/mips32/no_align.rs":"9cd223135de75315840ff9c3fd5441ba1cb632b96b5c85a76f8316c86653db25","src/unix/uclibc/mips/mips64/align.rs":"a7bdcb18a37a2d91e64d5fad83ea3edc78f5412adb28f77ab077dbb26dd08b2d","src/unix/uclibc/mips/mips64/mod.rs":"e3085ba56cfbc528d7c3c55065880603238c333b6047ef51c58177508a487fcd","src/unix/uclibc/mips/mips64/no_align.rs":"4a18e3875698c85229599225ac3401a2a40da87e77b2ad4ef47c6fcd5a24ed30","src/unix/uclibc/mips/mod.rs":"1054d0bfeb506b3346b9a4148564beced8a22da0d9c9a612101f6237756795fb","src/unix/uclibc/mod.rs":"907805e356738075844a704ef2eec8cfd628c59bb1408d3fff66e8f9ba36e4ba","src/unix/uclibc/no_align.rs":"3f28637046524618adaa1012e26cb7ffe94b9396e6b518cccdc69d59f274d709","src/unix/uclibc/x86_64/align.rs":"4e34cebb7955e9c98ae2f310be6f8ed16a861fc3817c08543867554aeec9524e","src/unix/uclibc/x86_64/l4re.rs":"bb31053d6403091e11f95ac2203982f279f8b984a19adf30796878c45fdd8c25","src/unix/uclibc/x86_64/mod.rs":"188fbaf06a8e23cac72718b1ef7eb4bd98bdfd946aa708151f3f7e3553b65876","src/unix/uclibc/x86_64/no_align.rs":"2ccc0107a6007c70dc49e656095b64a352ca5d8f9f3e65c1dba634effbc15636","src/unix/uclibc/x86_64/other.rs":"42c3f71e58cabba373f6a55a623f3c31b85049eb64824c09c2b082b3b2d6a0a8","src/vxworks/aarch64.rs":"98f0afdc511cd02557e506c21fed6737585490a1dce7a9d4941d08c437762b99","src/vxworks/arm.rs":"acb7968ce99fe3f4abdf39d98f8133d21a4fba435b8ef7084777cb181d788e88","src/vxworks/mod.rs":"b7c57b72a0f312c20531ba393f6fab7331fb708170d141d898d705868a5ee780","src/vxworks/powerpc.rs":"acb7968ce99fe3f4abdf39d98f8133d21a4fba435b8ef7084777cb181d788e88","src/vxworks/powerpc64.rs":"98f0afdc511cd02557e506c21fed6737585490a1dce7a9d4941d08c437762b99","src/vxworks/x86.rs":"552f007f38317620b23889cb7c49d1d115841252439060122f52f434fbc6e5ba","src/vxworks/x86_64.rs":"018d92be3ad628a129eff9f2f5dfbc0883d8b8e5f2fa917b900a7f98ed6b514a","src/wasi.rs":"11e1ca29d1a446845c551d5717ec5c6081459a2a850781c9194f557d53ecf44f","src/windows/gnu/align.rs":"b2c13ec1b9f3b39a75c452c80c951dff9d0215e31d77e883b4502afb31794647","src/windows/gnu/mod.rs":"c7ab9793baaa3b6854d25fdf44266b7953533009e4fa722ca717b71d3e5d2c9d","src/windows/mod.rs":"7b74bf885712d16a3557df33ef02799dc03d4a1af953c7e6b4648954ce7a20fc","src/windows/msvc.rs":"2c2bfce66027d88021e7289139ebf5b0db258a7b6443f18872c84dbd4ef57131","tests/const_fn.rs":"cb75a1f0864f926aebe79118fc34d51a0d1ade2c20a394e7774c7e545f21f1f4","triagebot.toml":"a135e10c777cd13459559bdf74fb704c1379af7c9b0f70bc49fa6f5a837daa81"},"package":"2448f6066e80e3bfc792e9c98bf705b4b0fc6e8ef5b43e5889aff0eaa9c58743"}
+-- 
+2.30.1
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.54.0/0005-Add-base-definitions-for-riscv64-musl-libc-0.2.93.patch b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0005-Add-base-definitions-for-riscv64-musl-libc-0.2.93.patch
new file mode 100644
index 0000000000..7529c4ddd7
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0005-Add-base-definitions-for-riscv64-musl-libc-0.2.93.patch
@@ -0,0 +1,905 @@
+From 4e188d047dee33a19902113a3c90cdf1d8310a9e Mon Sep 17 00:00:00 2001
+From: Ralf Anton Beier <ralf_beier@me.com>
+Date: Sun, 8 Aug 2021 11:05:06 +0200
+Subject: [PATCH 5/8] Add base definitions for riscv64 + musl - libc-0.2.93
+
+https://github.com/rust-lang/libc/pull/1994/commits/030a07761f61f3293d53752e60edbd330a9d718d
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Ralf Anton Beier <ralf_beier@me.com>
+---
+ .../src/unix/linux_like/linux/musl/b64/mod.rs |   3 +
+ .../linux_like/linux/musl/b64/riscv64/mod.rs  | 867 ++++++++++++++++++
+ 2 files changed, 870 insertions(+)
+ create mode 100644 vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+
+diff --git a/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/mod.rs b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/mod.rs
+index cfcdaaecf..7261b95d2 100644
+--- a/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/mod.rs
++++ b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/mod.rs
+@@ -163,6 +163,9 @@ cfg_if! {
+     } else if #[cfg(any(target_arch = "x86_64"))] {
+         mod x86_64;
+         pub use self::x86_64::*;
++    } else if #[cfg(any(target_arch = "riscv64"))] {
++        mod riscv64;
++        pub use self::riscv64::*;
+     } else {
+         // Unknown target_arch
+     }
+diff --git a/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+new file mode 100644
+index 000000000..14bae11d0
+--- /dev/null
++++ b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+@@ -0,0 +1,867 @@
++//! RISC-V-specific definitions for 64-bit linux-like values
++
++pub type c_char = u8;
++pub type c_long = i64;
++pub type c_ulong = u64;
++pub type wchar_t = ::c_int;
++
++pub type nlink_t = ::c_uint;
++pub type blksize_t = ::c_int;
++pub type fsblkcnt64_t = ::c_ulong;
++pub type fsfilcnt64_t = ::c_ulong;
++pub type suseconds_t = i64;
++pub type __u64 = ::c_ulonglong;
++
++s! {
++    pub struct pthread_attr_t {
++        __size: [::c_ulong; 7],
++    }
++
++    pub struct stat {
++        pub st_dev: ::dev_t,
++        pub st_ino: ::ino_t,
++        pub st_mode: ::mode_t,
++        pub st_nlink: ::nlink_t,
++        pub st_uid: ::uid_t,
++        pub st_gid: ::gid_t,
++        pub st_rdev: ::dev_t,
++        pub __pad1: ::dev_t,
++        pub st_size: ::off_t,
++        pub st_blksize: ::blksize_t,
++        pub __pad2: ::c_int,
++        pub st_blocks: ::blkcnt_t,
++        pub st_atime: ::time_t,
++        pub st_atime_nsec: ::c_long,
++        pub st_mtime: ::time_t,
++        pub st_mtime_nsec: ::c_long,
++        pub st_ctime: ::time_t,
++        pub st_ctime_nsec: ::c_long,
++        __unused: [::c_int; 2usize],
++    }
++
++    pub struct stat64 {
++        pub st_dev: ::dev_t,
++        pub st_ino: ::ino64_t,
++        pub st_mode: ::mode_t,
++        pub st_nlink: ::nlink_t,
++        pub st_uid: ::uid_t,
++        pub st_gid: ::gid_t,
++        pub st_rdev: ::dev_t,
++        pub __pad1: ::dev_t,
++        pub st_size: ::off64_t,
++        pub st_blksize: ::blksize_t,
++        pub __pad2: ::c_int,
++        pub st_blocks: ::blkcnt_t,
++        pub st_atime: ::time_t,
++        pub st_atime_nsec: ::c_long,
++        pub st_mtime: ::time_t,
++        pub st_mtime_nsec: ::c_long,
++        pub st_ctime: ::time_t,
++        pub st_ctime_nsec: ::c_long,
++        __unused: [::c_int; 2],
++    }
++
++    pub struct statfs {
++        pub f_type: ::c_long,
++        pub f_bsize: ::c_long,
++        pub f_blocks: ::fsblkcnt_t,
++        pub f_bfree: ::fsblkcnt_t,
++        pub f_bavail: ::fsblkcnt_t,
++        pub f_files: ::fsfilcnt_t,
++        pub f_ffree: ::fsfilcnt_t,
++        pub f_fsid: ::fsid_t,
++        pub f_namelen: ::c_long,
++        pub f_frsize: ::c_long,
++        pub f_flags: ::c_long,
++        pub f_spare: [::c_long; 4],
++    }
++
++    pub struct statfs64 {
++        pub f_type: ::c_long,
++        pub f_bsize: ::c_long,
++        pub f_blocks: ::fsblkcnt64_t,
++        pub f_bfree: ::fsblkcnt64_t,
++        pub f_bavail: ::fsblkcnt64_t,
++        pub f_files: ::fsfilcnt64_t,
++        pub f_ffree: ::fsfilcnt64_t,
++        pub f_fsid: ::fsid_t,
++        pub f_namelen: ::c_long,
++        pub f_frsize: ::c_long,
++        pub f_flags: ::c_long,
++        pub f_spare: [::c_long; 4],
++    }
++
++    pub struct statvfs {
++        pub f_bsize: ::c_ulong,
++        pub f_frsize: ::c_ulong,
++        pub f_blocks: ::fsblkcnt_t,
++        pub f_bfree: ::fsblkcnt_t,
++        pub f_bavail: ::fsblkcnt_t,
++        pub f_files: ::fsfilcnt_t,
++        pub f_ffree: ::fsfilcnt_t,
++        pub f_favail: ::fsfilcnt_t,
++        pub f_fsid: ::c_ulong,
++        pub f_flag: ::c_ulong,
++        pub f_namemax: ::c_ulong,
++        pub __f_spare: [::c_int; 6],
++    }
++
++    pub struct statvfs64 {
++        pub f_bsize: ::c_ulong,
++        pub f_frsize: ::c_ulong,
++        pub f_blocks: ::fsblkcnt64_t,
++        pub f_bfree: ::fsblkcnt64_t,
++        pub f_bavail: ::fsblkcnt64_t,
++        pub f_files: ::fsfilcnt64_t,
++        pub f_ffree: ::fsfilcnt64_t,
++        pub f_favail: ::fsfilcnt64_t,
++        pub f_fsid: ::c_ulong,
++        pub f_flag: ::c_ulong,
++        pub f_namemax: ::c_ulong,
++        pub __f_spare: [::c_int; 6],
++    }
++
++    pub struct siginfo_t {
++        pub si_signo: ::c_int,
++        pub si_errno: ::c_int,
++        pub si_code: ::c_int,
++        #[doc(hidden)]
++        #[deprecated(
++            since="0.2.54",
++            note="Please leave a comment on \
++                  https://github.com/rust-lang/libc/pull/1316 if you're using \
++                  this field"
++        )]
++        pub _pad: [::c_int; 29],
++        _align: [u64; 0],
++    }
++
++    pub struct stack_t {
++        pub ss_sp: *mut ::c_void,
++        pub ss_flags: ::c_int,
++        pub ss_size: ::size_t,
++    }
++
++    pub struct sigaction {
++        pub sa_sigaction: ::sighandler_t,
++        pub sa_mask: ::sigset_t,
++        pub sa_flags: ::c_int,
++        pub sa_restorer: ::Option<unsafe extern "C" fn()>,
++    }
++
++    pub struct ipc_perm {
++        pub __key: ::key_t,
++        pub uid: ::uid_t,
++        pub gid: ::gid_t,
++        pub cuid: ::uid_t,
++        pub cgid: ::gid_t,
++        pub mode: ::c_ushort,
++        __pad1: ::c_ushort,
++        pub __seq: ::c_ushort,
++        __pad2: ::c_ushort,
++        __unused1: ::c_ulong,
++        __unused2: ::c_ulong,
++    }
++
++    pub struct shmid_ds {
++        pub shm_perm: ::ipc_perm,
++        pub shm_segsz: ::size_t,
++        pub shm_atime: ::time_t,
++        pub shm_dtime: ::time_t,
++        pub shm_ctime: ::time_t,
++        pub shm_cpid: ::pid_t,
++        pub shm_lpid: ::pid_t,
++        pub shm_nattch: ::shmatt_t,
++        __unused5: ::c_ulong,
++        __unused6: ::c_ulong,
++    }
++
++    pub struct flock {
++        pub l_type: ::c_short,
++        pub l_whence: ::c_short,
++        pub l_start: ::off_t,
++        pub l_len: ::off_t,
++        pub l_pid: ::pid_t,
++    }
++
++    pub struct flock64 {
++        pub l_type: ::c_short,
++        pub l_whence: ::c_short,
++        pub l_start: ::off64_t,
++        pub l_len: ::off64_t,
++        pub l_pid: ::pid_t,
++    }
++
++    pub struct ip_mreqn {
++        pub imr_multiaddr: ::in_addr,
++        pub imr_address: ::in_addr,
++        pub imr_ifindex: ::c_int,
++    }
++}
++
++pub const POSIX_FADV_DONTNEED: ::c_int = 4;
++pub const POSIX_FADV_NOREUSE: ::c_int = 5;
++pub const VEOF: usize = 4;
++pub const RTLD_DEEPBIND: ::c_int = 0x8;
++pub const RTLD_GLOBAL: ::c_int = 0x100;
++pub const RTLD_NOLOAD: ::c_int = 0x4;
++pub const TIOCGSOFTCAR: ::c_ulong = 21529;
++pub const TIOCSSOFTCAR: ::c_ulong = 21530;
++pub const TIOCGRS485: ::c_int = 21550;
++pub const TIOCSRS485: ::c_int = 21551;
++pub const RLIMIT_RSS: ::__rlimit_resource_t = 5;
++pub const RLIMIT_AS: ::__rlimit_resource_t = 9;
++pub const RLIMIT_MEMLOCK: ::__rlimit_resource_t = 8;
++pub const RLIMIT_NOFILE: ::__rlimit_resource_t = 7;
++pub const RLIMIT_NPROC: ::__rlimit_resource_t = 6;
++pub const O_APPEND: ::c_int = 1024;
++pub const O_CREAT: ::c_int = 64;
++pub const O_EXCL: ::c_int = 128;
++pub const O_NOCTTY: ::c_int = 256;
++pub const O_NONBLOCK: ::c_int = 2048;
++pub const O_SYNC: ::c_int = 1052672;
++pub const O_RSYNC: ::c_int = 1052672;
++pub const O_DSYNC: ::c_int = 4096;
++pub const O_FSYNC: ::c_int = 1052672;
++pub const O_NOATIME: ::c_int = 262144;
++pub const O_PATH: ::c_int = 2097152;
++pub const O_TMPFILE: ::c_int = 4259840;
++pub const MAP_GROWSDOWN: ::c_int = 256;
++pub const EDEADLK: ::c_int = 35;
++pub const ENAMETOOLONG: ::c_int = 36;
++pub const ENOLCK: ::c_int = 37;
++pub const ENOSYS: ::c_int = 38;
++pub const ENOTEMPTY: ::c_int = 39;
++pub const ELOOP: ::c_int = 40;
++pub const ENOMSG: ::c_int = 42;
++pub const EIDRM: ::c_int = 43;
++pub const ECHRNG: ::c_int = 44;
++pub const EL2NSYNC: ::c_int = 45;
++pub const EL3HLT: ::c_int = 46;
++pub const EL3RST: ::c_int = 47;
++pub const ELNRNG: ::c_int = 48;
++pub const EUNATCH: ::c_int = 49;
++pub const ENOCSI: ::c_int = 50;
++pub const EL2HLT: ::c_int = 51;
++pub const EBADE: ::c_int = 52;
++pub const EBADR: ::c_int = 53;
++pub const EXFULL: ::c_int = 54;
++pub const ENOANO: ::c_int = 55;
++pub const EBADRQC: ::c_int = 56;
++pub const EBADSLT: ::c_int = 57;
++pub const EMULTIHOP: ::c_int = 72;
++pub const EOVERFLOW: ::c_int = 75;
++pub const ENOTUNIQ: ::c_int = 76;
++pub const EBADFD: ::c_int = 77;
++pub const EBADMSG: ::c_int = 74;
++pub const EREMCHG: ::c_int = 78;
++pub const ELIBACC: ::c_int = 79;
++pub const ELIBBAD: ::c_int = 80;
++pub const ELIBSCN: ::c_int = 81;
++pub const ELIBMAX: ::c_int = 82;
++pub const ELIBEXEC: ::c_int = 83;
++pub const EILSEQ: ::c_int = 84;
++pub const ERESTART: ::c_int = 85;
++pub const ESTRPIPE: ::c_int = 86;
++pub const EUSERS: ::c_int = 87;
++pub const ENOTSOCK: ::c_int = 88;
++pub const EDESTADDRREQ: ::c_int = 89;
++pub const EMSGSIZE: ::c_int = 90;
++pub const EPROTOTYPE: ::c_int = 91;
++pub const ENOPROTOOPT: ::c_int = 92;
++pub const EPROTONOSUPPORT: ::c_int = 93;
++pub const ESOCKTNOSUPPORT: ::c_int = 94;
++pub const EOPNOTSUPP: ::c_int = 95;
++pub const EPFNOSUPPORT: ::c_int = 96;
++pub const EAFNOSUPPORT: ::c_int = 97;
++pub const EADDRINUSE: ::c_int = 98;
++pub const EADDRNOTAVAIL: ::c_int = 99;
++pub const ENETDOWN: ::c_int = 100;
++pub const ENETUNREACH: ::c_int = 101;
++pub const ENETRESET: ::c_int = 102;
++pub const ECONNABORTED: ::c_int = 103;
++pub const ECONNRESET: ::c_int = 104;
++pub const ENOBUFS: ::c_int = 105;
++pub const EISCONN: ::c_int = 106;
++pub const ENOTCONN: ::c_int = 107;
++pub const ESHUTDOWN: ::c_int = 108;
++pub const ETOOMANYREFS: ::c_int = 109;
++pub const ETIMEDOUT: ::c_int = 110;
++pub const ECONNREFUSED: ::c_int = 111;
++pub const EHOSTDOWN: ::c_int = 112;
++pub const EHOSTUNREACH: ::c_int = 113;
++pub const EALREADY: ::c_int = 114;
++pub const EINPROGRESS: ::c_int = 115;
++pub const ESTALE: ::c_int = 116;
++pub const EDQUOT: ::c_int = 122;
++pub const ENOMEDIUM: ::c_int = 123;
++pub const EMEDIUMTYPE: ::c_int = 124;
++pub const ECANCELED: ::c_int = 125;
++pub const ENOKEY: ::c_int = 126;
++pub const EKEYEXPIRED: ::c_int = 127;
++pub const EKEYREVOKED: ::c_int = 128;
++pub const EKEYREJECTED: ::c_int = 129;
++pub const EOWNERDEAD: ::c_int = 130;
++pub const ENOTRECOVERABLE: ::c_int = 131;
++pub const EHWPOISON: ::c_int = 133;
++pub const ERFKILL: ::c_int = 132;
++pub const SOL_SOCKET: ::c_int = 1;
++pub const SO_REUSEADDR: ::c_int = 2;
++pub const SO_TYPE: ::c_int = 3;
++pub const SO_ERROR: ::c_int = 4;
++pub const SO_DONTROUTE: ::c_int = 5;
++pub const SO_BROADCAST: ::c_int = 6;
++pub const SO_SNDBUF: ::c_int = 7;
++pub const SO_RCVBUF: ::c_int = 8;
++pub const SO_SNDBUFFORCE: ::c_int = 32;
++pub const SO_RCVBUFFORCE: ::c_int = 33;
++pub const SO_KEEPALIVE: ::c_int = 9;
++pub const SO_OOBINLINE: ::c_int = 10;
++pub const SO_NO_CHECK: ::c_int = 11;
++pub const SO_PRIORITY: ::c_int = 12;
++pub const SO_LINGER: ::c_int = 13;
++pub const SO_BSDCOMPAT: ::c_int = 14;
++pub const SO_REUSEPORT: ::c_int = 15;
++pub const SO_PASSCRED: ::c_int = 16;
++pub const SO_PEERCRED: ::c_int = 17;
++pub const SO_RCVLOWAT: ::c_int = 18;
++pub const SO_SNDLOWAT: ::c_int = 19;
++pub const SO_RCVTIMEO: ::c_int = 20;
++pub const SO_SNDTIMEO: ::c_int = 21;
++pub const SO_SECURITY_AUTHENTICATION: ::c_int = 22;
++pub const SO_SECURITY_ENCRYPTION_TRANSPORT: ::c_int = 23;
++pub const SO_SECURITY_ENCRYPTION_NETWORK: ::c_int = 24;
++pub const SO_BINDTODEVICE: ::c_int = 25;
++pub const SO_ATTACH_FILTER: ::c_int = 26;
++pub const SO_DETACH_FILTER: ::c_int = 27;
++pub const SO_GET_FILTER: ::c_int = 26;
++pub const SO_PEERNAME: ::c_int = 28;
++pub const SO_TIMESTAMP: ::c_int = 29;
++pub const SO_ACCEPTCONN: ::c_int = 30;
++pub const SO_PEERSEC: ::c_int = 31;
++pub const SO_PASSSEC: ::c_int = 34;
++pub const SO_TIMESTAMPNS: ::c_int = 35;
++pub const SCM_TIMESTAMPNS: ::c_int = 35;
++pub const SO_MARK: ::c_int = 36;
++pub const SO_PROTOCOL: ::c_int = 38;
++pub const SO_DOMAIN: ::c_int = 39;
++pub const SO_RXQ_OVFL: ::c_int = 40;
++pub const SO_WIFI_STATUS: ::c_int = 41;
++pub const SCM_WIFI_STATUS: ::c_int = 41;
++pub const SO_PEEK_OFF: ::c_int = 42;
++pub const SO_NOFCS: ::c_int = 43;
++pub const SO_LOCK_FILTER: ::c_int = 44;
++pub const SO_SELECT_ERR_QUEUE: ::c_int = 45;
++pub const SO_BUSY_POLL: ::c_int = 46;
++pub const SO_MAX_PACING_RATE: ::c_int = 47;
++pub const SO_BPF_EXTENSIONS: ::c_int = 48;
++pub const SO_INCOMING_CPU: ::c_int = 49;
++pub const SO_ATTACH_BPF: ::c_int = 50;
++pub const SO_DETACH_BPF: ::c_int = 27;
++pub const SOCK_STREAM: ::c_int = 1;
++pub const SOCK_DGRAM: ::c_int = 2;
++pub const SA_ONSTACK: ::c_int = 134217728;
++pub const SA_SIGINFO: ::c_int = 4;
++pub const SA_NOCLDWAIT: ::c_int = 2;
++pub const SIGTTIN: ::c_int = 21;
++pub const SIGTTOU: ::c_int = 22;
++pub const SIGXCPU: ::c_int = 24;
++pub const SIGXFSZ: ::c_int = 25;
++pub const SIGVTALRM: ::c_int = 26;
++pub const SIGPROF: ::c_int = 27;
++pub const SIGWINCH: ::c_int = 28;
++pub const SIGCHLD: ::c_int = 17;
++pub const SIGBUS: ::c_int = 7;
++pub const SIGUSR1: ::c_int = 10;
++pub const SIGUSR2: ::c_int = 12;
++pub const SIGCONT: ::c_int = 18;
++pub const SIGSTOP: ::c_int = 19;
++pub const SIGTSTP: ::c_int = 20;
++pub const SIGURG: ::c_int = 23;
++pub const SIGIO: ::c_int = 29;
++pub const SIGSYS: ::c_int = 31;
++pub const SIGSTKFLT: ::c_int = 16;
++pub const SIGPOLL: ::c_int = 29;
++pub const SIGPWR: ::c_int = 30;
++pub const SIG_SETMASK: ::c_int = 2;
++pub const SIG_BLOCK: ::c_int = 0;
++pub const SIG_UNBLOCK: ::c_int = 1;
++pub const POLLWRNORM: ::c_short = 256;
++pub const POLLWRBAND: ::c_short = 512;
++pub const O_ASYNC: ::c_int = 8192;
++pub const O_NDELAY: ::c_int = 2048;
++pub const PTRACE_DETACH: ::c_uint = 17;
++pub const EFD_NONBLOCK: ::c_int = 2048;
++pub const F_GETLK: ::c_int = 5;
++pub const F_GETOWN: ::c_int = 9;
++pub const F_SETOWN: ::c_int = 8;
++pub const F_SETLK: ::c_int = 6;
++pub const F_SETLKW: ::c_int = 7;
++pub const F_RDLCK: ::c_int = 0;
++pub const F_WRLCK: ::c_int = 1;
++pub const F_UNLCK: ::c_int = 2;
++pub const F_OFD_GETLK: ::c_int = 36;
++pub const F_OFD_SETLK: ::c_int = 37;
++pub const F_OFD_SETLKW: ::c_int = 38;
++pub const SFD_NONBLOCK: ::c_int = 2048;
++pub const TCSANOW: ::c_int = 0;
++pub const TCSADRAIN: ::c_int = 1;
++pub const TCSAFLUSH: ::c_int = 2;
++pub const TIOCLINUX: ::c_ulong = 21532;
++pub const TIOCGSERIAL: ::c_ulong = 21534;
++pub const TIOCEXCL: ::c_ulong = 21516;
++pub const TIOCNXCL: ::c_ulong = 21517;
++pub const TIOCSCTTY: ::c_ulong = 21518;
++pub const TIOCSTI: ::c_ulong = 21522;
++pub const TIOCMGET: ::c_ulong = 21525;
++pub const TIOCMBIS: ::c_ulong = 21526;
++pub const TIOCMBIC: ::c_ulong = 21527;
++pub const TIOCMSET: ::c_ulong = 21528;
++pub const TIOCCONS: ::c_ulong = 21533;
++pub const TIOCM_ST: ::c_int = 8;
++pub const TIOCM_SR: ::c_int = 16;
++pub const TIOCM_CTS: ::c_int = 32;
++pub const TIOCM_CAR: ::c_int = 64;
++pub const TIOCM_RNG: ::c_int = 128;
++pub const TIOCM_DSR: ::c_int = 256;
++pub const SFD_CLOEXEC: ::c_int = 524288;
++pub const NCCS: usize = 32;
++pub const O_TRUNC: ::c_int = 512;
++pub const O_CLOEXEC: ::c_int = 524288;
++pub const EBFONT: ::c_int = 59;
++pub const ENOSTR: ::c_int = 60;
++pub const ENODATA: ::c_int = 61;
++pub const ETIME: ::c_int = 62;
++pub const ENOSR: ::c_int = 63;
++pub const ENONET: ::c_int = 64;
++pub const ENOPKG: ::c_int = 65;
++pub const EREMOTE: ::c_int = 66;
++pub const ENOLINK: ::c_int = 67;
++pub const EADV: ::c_int = 68;
++pub const ESRMNT: ::c_int = 69;
++pub const ECOMM: ::c_int = 70;
++pub const EPROTO: ::c_int = 71;
++pub const EDOTDOT: ::c_int = 73;
++pub const SA_NODEFER: ::c_int = 1073741824;
++pub const SA_RESETHAND: ::c_int = -2147483648;
++pub const SA_RESTART: ::c_int = 268435456;
++pub const SA_NOCLDSTOP: ::c_int = 1;
++pub const EPOLL_CLOEXEC: ::c_int = 524288;
++pub const EFD_CLOEXEC: ::c_int = 524288;
++pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4;
++pub const __SIZEOF_PTHREAD_MUTEXATTR_T: usize = 4;
++pub const O_DIRECT: ::c_int = 16384;
++pub const O_DIRECTORY: ::c_int = 65536;
++pub const O_NOFOLLOW: ::c_int = 131072;
++pub const MAP_HUGETLB: ::c_int = 262144;
++pub const MAP_LOCKED: ::c_int = 8192;
++pub const MAP_NORESERVE: ::c_int = 16384;
++pub const MAP_ANON: ::c_int = 32;
++pub const MAP_ANONYMOUS: ::c_int = 32;
++pub const MAP_DENYWRITE: ::c_int = 2048;
++pub const MAP_EXECUTABLE: ::c_int = 4096;
++pub const MAP_POPULATE: ::c_int = 32768;
++pub const MAP_NONBLOCK: ::c_int = 65536;
++pub const MAP_STACK: ::c_int = 131072;
++pub const MAP_SYNC : ::c_int = 0x080000;
++pub const EDEADLOCK: ::c_int = 35;
++pub const EUCLEAN: ::c_int = 117;
++pub const ENOTNAM: ::c_int = 118;
++pub const ENAVAIL: ::c_int = 119;
++pub const EISNAM: ::c_int = 120;
++pub const EREMOTEIO: ::c_int = 121;
++pub const FIOCLEX: ::c_ulong = 21585;
++pub const FIONCLEX: ::c_ulong = 21584;
++pub const FIONBIO: ::c_ulong = 21537;
++pub const MCL_CURRENT: ::c_int = 1;
++pub const MCL_FUTURE: ::c_int = 2;
++pub const SIGSTKSZ: ::size_t = 8192;
++pub const MINSIGSTKSZ: ::size_t = 2048;
++pub const CBAUD: ::tcflag_t = 4111;
++pub const TAB1: ::tcflag_t = 2048;
++pub const TAB2: ::tcflag_t = 4096;
++pub const TAB3: ::tcflag_t = 6144;
++pub const CR1: ::tcflag_t = 512;
++pub const CR2: ::tcflag_t = 1024;
++pub const CR3: ::tcflag_t = 1536;
++pub const FF1: ::tcflag_t = 32768;
++pub const BS1: ::tcflag_t = 8192;
++pub const VT1: ::tcflag_t = 16384;
++pub const VWERASE: usize = 14;
++pub const VREPRINT: usize = 12;
++pub const VSUSP: usize = 10;
++pub const VSTART: usize = 8;
++pub const VSTOP: usize = 9;
++pub const VDISCARD: usize = 13;
++pub const VTIME: usize = 5;
++pub const IXON: ::tcflag_t = 1024;
++pub const IXOFF: ::tcflag_t = 4096;
++pub const ONLCR: ::tcflag_t = 4;
++pub const CSIZE: ::tcflag_t = 48;
++pub const CS6: ::tcflag_t = 16;
++pub const CS7: ::tcflag_t = 32;
++pub const CS8: ::tcflag_t = 48;
++pub const CSTOPB: ::tcflag_t = 64;
++pub const CREAD: ::tcflag_t = 128;
++pub const PARENB: ::tcflag_t = 256;
++pub const PARODD: ::tcflag_t = 512;
++pub const HUPCL: ::tcflag_t = 1024;
++pub const CLOCAL: ::tcflag_t = 2048;
++pub const ECHOKE: ::tcflag_t = 2048;
++pub const ECHOE: ::tcflag_t = 16;
++pub const ECHOK: ::tcflag_t = 32;
++pub const ECHONL: ::tcflag_t = 64;
++pub const ECHOPRT: ::tcflag_t = 1024;
++pub const ECHOCTL: ::tcflag_t = 512;
++pub const ISIG: ::tcflag_t = 1;
++pub const ICANON: ::tcflag_t = 2;
++pub const PENDIN: ::tcflag_t = 16384;
++pub const NOFLSH: ::tcflag_t = 128;
++pub const CIBAUD: ::tcflag_t = 269418496;
++pub const CBAUDEX: ::tcflag_t = 4096;
++pub const VSWTC: usize = 7;
++pub const OLCUC: ::tcflag_t = 2;
++pub const NLDLY: ::tcflag_t = 256;
++pub const CRDLY: ::tcflag_t = 1536;
++pub const TABDLY: ::tcflag_t = 6144;
++pub const BSDLY: ::tcflag_t = 8192;
++pub const FFDLY: ::tcflag_t = 32768;
++pub const VTDLY: ::tcflag_t = 16384;
++pub const XTABS: ::tcflag_t = 6144;
++pub const B0: ::speed_t = 0;
++pub const B50: ::speed_t = 1;
++pub const B75: ::speed_t = 2;
++pub const B110: ::speed_t = 3;
++pub const B134: ::speed_t = 4;
++pub const B150: ::speed_t = 5;
++pub const B200: ::speed_t = 6;
++pub const B300: ::speed_t = 7;
++pub const B600: ::speed_t = 8;
++pub const B1200: ::speed_t = 9;
++pub const B1800: ::speed_t = 10;
++pub const B2400: ::speed_t = 11;
++pub const B4800: ::speed_t = 12;
++pub const B9600: ::speed_t = 13;
++pub const B19200: ::speed_t = 14;
++pub const B38400: ::speed_t = 15;
++pub const EXTA: ::speed_t = 14;
++pub const EXTB: ::speed_t = 15;
++pub const B57600: ::speed_t = 4097;
++pub const B115200: ::speed_t = 4098;
++pub const B230400: ::speed_t = 4099;
++pub const B460800: ::speed_t = 4100;
++pub const B500000: ::speed_t = 4101;
++pub const B576000: ::speed_t = 4102;
++pub const B921600: ::speed_t = 4103;
++pub const B1000000: ::speed_t = 4104;
++pub const B1152000: ::speed_t = 4105;
++pub const B1500000: ::speed_t = 4106;
++pub const B2000000: ::speed_t = 4107;
++pub const B2500000: ::speed_t = 4108;
++pub const B3000000: ::speed_t = 4109;
++pub const B3500000: ::speed_t = 4110;
++pub const B4000000: ::speed_t = 4111;
++pub const VEOL: usize = 11;
++pub const VEOL2: usize = 16;
++pub const VMIN: usize = 6;
++pub const IEXTEN: ::tcflag_t = 32768;
++pub const TOSTOP: ::tcflag_t = 256;
++pub const FLUSHO: ::tcflag_t = 4096;
++pub const EXTPROC: ::tcflag_t = 65536;
++pub const TCGETS: ::c_ulong = 21505;
++pub const TCSETS: ::c_ulong = 21506;
++pub const TCSETSW: ::c_ulong = 21507;
++pub const TCSETSF: ::c_ulong = 21508;
++pub const TCGETA: ::c_ulong = 21509;
++pub const TCSETA: ::c_ulong = 21510;
++pub const TCSETAW: ::c_ulong = 21511;
++pub const TCSETAF: ::c_ulong = 21512;
++pub const TCSBRK: ::c_ulong = 21513;
++pub const TCXONC: ::c_ulong = 21514;
++pub const TCFLSH: ::c_ulong = 21515;
++pub const TIOCINQ: ::c_ulong = 21531;
++pub const TIOCGPGRP: ::c_ulong = 21519;
++pub const TIOCSPGRP: ::c_ulong = 21520;
++pub const TIOCOUTQ: ::c_ulong = 21521;
++pub const TIOCGWINSZ: ::c_ulong = 21523;
++pub const TIOCSWINSZ: ::c_ulong = 21524;
++pub const FIONREAD: ::c_ulong = 21531;
++pub const __SIZEOF_PTHREAD_MUTEX_T: usize = 40;
++pub const __SIZEOF_PTHREAD_RWLOCK_T: usize = 56;
++pub const SYS_read: ::c_long = 63;
++pub const SYS_write: ::c_long = 64;
++pub const SYS_close: ::c_long = 57;
++pub const SYS_fstat: ::c_long = 80;
++pub const SYS_lseek: ::c_long = 62;
++pub const SYS_mmap: ::c_long = 222;
++pub const SYS_mprotect: ::c_long = 226;
++pub const SYS_munmap: ::c_long = 215;
++pub const SYS_brk: ::c_long = 214;
++pub const SYS_rt_sigaction: ::c_long = 134;
++pub const SYS_rt_sigprocmask: ::c_long = 135;
++pub const SYS_rt_sigreturn: ::c_long = 139;
++pub const SYS_ioctl: ::c_long = 29;
++pub const SYS_pread64: ::c_long = 67;
++pub const SYS_pwrite64: ::c_long = 68;
++pub const SYS_readv: ::c_long = 65;
++pub const SYS_writev: ::c_long = 66;
++pub const SYS_sched_yield: ::c_long = 124;
++pub const SYS_mremap: ::c_long = 216;
++pub const SYS_msync: ::c_long = 227;
++pub const SYS_mincore: ::c_long = 232;
++pub const SYS_madvise: ::c_long = 233;
++pub const SYS_shmget: ::c_long = 194;
++pub const SYS_shmat: ::c_long = 196;
++pub const SYS_shmctl: ::c_long = 195;
++pub const SYS_dup: ::c_long = 23;
++pub const SYS_nanosleep: ::c_long = 101;
++pub const SYS_getitimer: ::c_long = 102;
++pub const SYS_setitimer: ::c_long = 103;
++pub const SYS_getpid: ::c_long = 172;
++pub const SYS_sendfile: ::c_long = 71;
++pub const SYS_socket: ::c_long = 198;
++pub const SYS_connect: ::c_long = 203;
++pub const SYS_accept: ::c_long = 202;
++pub const SYS_sendto: ::c_long = 206;
++pub const SYS_recvfrom: ::c_long = 207;
++pub const SYS_sendmsg: ::c_long = 211;
++pub const SYS_recvmsg: ::c_long = 212;
++pub const SYS_shutdown: ::c_long = 210;
++pub const SYS_bind: ::c_long = 200;
++pub const SYS_listen: ::c_long = 201;
++pub const SYS_getsockname: ::c_long = 204;
++pub const SYS_getpeername: ::c_long = 205;
++pub const SYS_socketpair: ::c_long = 199;
++pub const SYS_setsockopt: ::c_long = 208;
++pub const SYS_getsockopt: ::c_long = 209;
++pub const SYS_clone: ::c_long = 220;
++pub const SYS_execve: ::c_long = 221;
++pub const SYS_exit: ::c_long = 93;
++pub const SYS_wait4: ::c_long = 260;
++pub const SYS_kill: ::c_long = 129;
++pub const SYS_uname: ::c_long = 160;
++pub const SYS_semget: ::c_long = 190;
++pub const SYS_semop: ::c_long = 193;
++pub const SYS_semctl: ::c_long = 191;
++pub const SYS_shmdt: ::c_long = 197;
++pub const SYS_msgget: ::c_long = 186;
++pub const SYS_msgsnd: ::c_long = 189;
++pub const SYS_msgrcv: ::c_long = 188;
++pub const SYS_msgctl: ::c_long = 187;
++pub const SYS_fcntl: ::c_long = 25;
++pub const SYS_flock: ::c_long = 32;
++pub const SYS_fsync: ::c_long = 82;
++pub const SYS_fdatasync: ::c_long = 83;
++pub const SYS_truncate: ::c_long = 45;
++pub const SYS_ftruncate: ::c_long = 46;
++pub const SYS_getcwd: ::c_long = 17;
++pub const SYS_chdir: ::c_long = 49;
++pub const SYS_fchdir: ::c_long = 50;
++pub const SYS_fchmod: ::c_long = 52;
++pub const SYS_fchown: ::c_long = 55;
++pub const SYS_umask: ::c_long = 166;
++pub const SYS_gettimeofday: ::c_long = 169;
++pub const SYS_getrlimit: ::c_long = 163;
++pub const SYS_getrusage: ::c_long = 165;
++pub const SYS_sysinfo: ::c_long = 179;
++pub const SYS_times: ::c_long = 153;
++pub const SYS_ptrace: ::c_long = 117;
++pub const SYS_getuid: ::c_long = 174;
++pub const SYS_syslog: ::c_long = 116;
++pub const SYS_getgid: ::c_long = 176;
++pub const SYS_setuid: ::c_long = 146;
++pub const SYS_setgid: ::c_long = 144;
++pub const SYS_geteuid: ::c_long = 175;
++pub const SYS_getegid: ::c_long = 177;
++pub const SYS_setpgid: ::c_long = 154;
++pub const SYS_getppid: ::c_long = 173;
++pub const SYS_setsid: ::c_long = 157;
++pub const SYS_setreuid: ::c_long = 145;
++pub const SYS_setregid: ::c_long = 143;
++pub const SYS_getgroups: ::c_long = 158;
++pub const SYS_setgroups: ::c_long = 159;
++pub const SYS_setresuid: ::c_long = 147;
++pub const SYS_getresuid: ::c_long = 148;
++pub const SYS_setresgid: ::c_long = 149;
++pub const SYS_getresgid: ::c_long = 150;
++pub const SYS_getpgid: ::c_long = 155;
++pub const SYS_setfsuid: ::c_long = 151;
++pub const SYS_setfsgid: ::c_long = 152;
++pub const SYS_getsid: ::c_long = 156;
++pub const SYS_capget: ::c_long = 90;
++pub const SYS_capset: ::c_long = 91;
++pub const SYS_rt_sigpending: ::c_long = 136;
++pub const SYS_rt_sigtimedwait: ::c_long = 137;
++pub const SYS_rt_sigqueueinfo: ::c_long = 138;
++pub const SYS_rt_sigsuspend: ::c_long = 133;
++pub const SYS_sigaltstack: ::c_long = 132;
++pub const SYS_personality: ::c_long = 92;
++pub const SYS_statfs: ::c_long = 43;
++pub const SYS_fstatfs: ::c_long = 44;
++pub const SYS_getpriority: ::c_long = 141;
++pub const SYS_setpriority: ::c_long = 140;
++pub const SYS_sched_setparam: ::c_long = 118;
++pub const SYS_sched_getparam: ::c_long = 121;
++pub const SYS_sched_setscheduler: ::c_long = 119;
++pub const SYS_sched_getscheduler: ::c_long = 120;
++pub const SYS_sched_get_priority_max: ::c_long = 125;
++pub const SYS_sched_get_priority_min: ::c_long = 126;
++pub const SYS_sched_rr_get_interval: ::c_long = 127;
++pub const SYS_mlock: ::c_long = 228;
++pub const SYS_munlock: ::c_long = 229;
++pub const SYS_mlockall: ::c_long = 230;
++pub const SYS_munlockall: ::c_long = 231;
++pub const SYS_vhangup: ::c_long = 58;
++pub const SYS_pivot_root: ::c_long = 41;
++pub const SYS_prctl: ::c_long = 167;
++pub const SYS_adjtimex: ::c_long = 171;
++pub const SYS_setrlimit: ::c_long = 164;
++pub const SYS_chroot: ::c_long = 51;
++pub const SYS_sync: ::c_long = 81;
++pub const SYS_acct: ::c_long = 89;
++pub const SYS_settimeofday: ::c_long = 170;
++pub const SYS_mount: ::c_long = 40;
++pub const SYS_umount2: ::c_long = 39;
++pub const SYS_swapon: ::c_long = 224;
++pub const SYS_swapoff: ::c_long = 225;
++pub const SYS_reboot: ::c_long = 142;
++pub const SYS_sethostname: ::c_long = 161;
++pub const SYS_setdomainname: ::c_long = 162;
++pub const SYS_init_module: ::c_long = 105;
++pub const SYS_delete_module: ::c_long = 106;
++pub const SYS_quotactl: ::c_long = 60;
++pub const SYS_nfsservctl: ::c_long = 42;
++pub const SYS_gettid: ::c_long = 178;
++pub const SYS_readahead: ::c_long = 213;
++pub const SYS_setxattr: ::c_long = 5;
++pub const SYS_lsetxattr: ::c_long = 6;
++pub const SYS_fsetxattr: ::c_long = 7;
++pub const SYS_getxattr: ::c_long = 8;
++pub const SYS_lgetxattr: ::c_long = 9;
++pub const SYS_fgetxattr: ::c_long = 10;
++pub const SYS_listxattr: ::c_long = 11;
++pub const SYS_llistxattr: ::c_long = 12;
++pub const SYS_flistxattr: ::c_long = 13;
++pub const SYS_removexattr: ::c_long = 14;
++pub const SYS_lremovexattr: ::c_long = 15;
++pub const SYS_fremovexattr: ::c_long = 16;
++pub const SYS_tkill: ::c_long = 130;
++pub const SYS_futex: ::c_long = 98;
++pub const SYS_sched_setaffinity: ::c_long = 122;
++pub const SYS_sched_getaffinity: ::c_long = 123;
++pub const SYS_io_setup: ::c_long = 0;
++pub const SYS_io_destroy: ::c_long = 1;
++pub const SYS_io_getevents: ::c_long = 4;
++pub const SYS_io_submit: ::c_long = 2;
++pub const SYS_io_cancel: ::c_long = 3;
++pub const SYS_lookup_dcookie: ::c_long = 18;
++pub const SYS_remap_file_pages: ::c_long = 234;
++pub const SYS_getdents64: ::c_long = 61;
++pub const SYS_set_tid_address: ::c_long = 96;
++pub const SYS_restart_syscall: ::c_long = 128;
++pub const SYS_semtimedop: ::c_long = 192;
++pub const SYS_fadvise64: ::c_long = 223;
++pub const SYS_timer_create: ::c_long = 107;
++pub const SYS_timer_settime: ::c_long = 110;
++pub const SYS_timer_gettime: ::c_long = 108;
++pub const SYS_timer_getoverrun: ::c_long = 109;
++pub const SYS_timer_delete: ::c_long = 111;
++pub const SYS_clock_settime: ::c_long = 112;
++pub const SYS_clock_gettime: ::c_long = 113;
++pub const SYS_clock_getres: ::c_long = 114;
++pub const SYS_clock_nanosleep: ::c_long = 115;
++pub const SYS_exit_group: ::c_long = 94;
++pub const SYS_epoll_ctl: ::c_long = 21;
++pub const SYS_tgkill: ::c_long = 131;
++pub const SYS_mbind: ::c_long = 235;
++pub const SYS_set_mempolicy: ::c_long = 237;
++pub const SYS_get_mempolicy: ::c_long = 236;
++pub const SYS_mq_open: ::c_long = 180;
++pub const SYS_mq_unlink: ::c_long = 181;
++pub const SYS_mq_timedsend: ::c_long = 182;
++pub const SYS_mq_timedreceive: ::c_long = 183;
++pub const SYS_mq_notify: ::c_long = 184;
++pub const SYS_mq_getsetattr: ::c_long = 185;
++pub const SYS_kexec_load: ::c_long = 104;
++pub const SYS_waitid: ::c_long = 95;
++pub const SYS_add_key: ::c_long = 217;
++pub const SYS_request_key: ::c_long = 218;
++pub const SYS_keyctl: ::c_long = 219;
++pub const SYS_ioprio_set: ::c_long = 30;
++pub const SYS_ioprio_get: ::c_long = 31;
++pub const SYS_inotify_add_watch: ::c_long = 27;
++pub const SYS_inotify_rm_watch: ::c_long = 28;
++pub const SYS_migrate_pages: ::c_long = 238;
++pub const SYS_openat: ::c_long = 56;
++pub const SYS_mkdirat: ::c_long = 34;
++pub const SYS_mknodat: ::c_long = 33;
++pub const SYS_fchownat: ::c_long = 54;
++pub const SYS_newfstatat: ::c_long = 79;
++pub const SYS_unlinkat: ::c_long = 35;
++pub const SYS_linkat: ::c_long = 37;
++pub const SYS_symlinkat: ::c_long = 36;
++pub const SYS_readlinkat: ::c_long = 78;
++pub const SYS_fchmodat: ::c_long = 53;
++pub const SYS_faccessat: ::c_long = 48;
++pub const SYS_pselect6: ::c_long = 72;
++pub const SYS_ppoll: ::c_long = 73;
++pub const SYS_unshare: ::c_long = 97;
++pub const SYS_set_robust_list: ::c_long = 99;
++pub const SYS_get_robust_list: ::c_long = 100;
++pub const SYS_splice: ::c_long = 76;
++pub const SYS_tee: ::c_long = 77;
++pub const SYS_sync_file_range: ::c_long = 84;
++pub const SYS_vmsplice: ::c_long = 75;
++pub const SYS_move_pages: ::c_long = 239;
++pub const SYS_utimensat: ::c_long = 88;
++pub const SYS_epoll_pwait: ::c_long = 22;
++pub const SYS_timerfd_create: ::c_long = 85;
++pub const SYS_fallocate: ::c_long = 47;
++pub const SYS_timerfd_settime: ::c_long = 86;
++pub const SYS_timerfd_gettime: ::c_long = 87;
++pub const SYS_accept4: ::c_long = 242;
++pub const SYS_signalfd4: ::c_long = 74;
++pub const SYS_eventfd2: ::c_long = 19;
++pub const SYS_epoll_create1: ::c_long = 20;
++pub const SYS_dup3: ::c_long = 24;
++pub const SYS_pipe2: ::c_long = 59;
++pub const SYS_inotify_init1: ::c_long = 26;
++pub const SYS_preadv: ::c_long = 69;
++pub const SYS_pwritev: ::c_long = 70;
++pub const SYS_rt_tgsigqueueinfo: ::c_long = 240;
++pub const SYS_perf_event_open: ::c_long = 241;
++pub const SYS_recvmmsg: ::c_long = 243;
++pub const SYS_fanotify_init: ::c_long = 262;
++pub const SYS_fanotify_mark: ::c_long = 263;
++pub const SYS_prlimit64: ::c_long = 261;
++pub const SYS_name_to_handle_at: ::c_long = 264;
++pub const SYS_open_by_handle_at: ::c_long = 265;
++pub const SYS_clock_adjtime: ::c_long = 266;
++pub const SYS_syncfs: ::c_long = 267;
++pub const SYS_sendmmsg: ::c_long = 269;
++pub const SYS_setns: ::c_long = 268;
++pub const SYS_getcpu: ::c_long = 168;
++pub const SYS_process_vm_readv: ::c_long = 270;
++pub const SYS_process_vm_writev: ::c_long = 271;
++pub const SYS_kcmp: ::c_long = 272;
++pub const SYS_finit_module: ::c_long = 273;
++pub const SYS_sched_setattr: ::c_long = 274;
++pub const SYS_sched_getattr: ::c_long = 275;
++pub const SYS_renameat2: ::c_long = 276;
++pub const SYS_seccomp: ::c_long = 277;
++pub const SYS_getrandom: ::c_long = 278;
++pub const SYS_memfd_create: ::c_long = 279;
++pub const SYS_bpf: ::c_long = 280;
++pub const SYS_execveat: ::c_long = 281;
++pub const SYS_userfaultfd: ::c_long = 282;
++pub const SYS_membarrier: ::c_long = 283;
++pub const SYS_mlock2: ::c_long = 284;
++pub const SYS_copy_file_range: ::c_long = 285;
++pub const SYS_preadv2: ::c_long = 286;
++pub const SYS_pwritev2: ::c_long = 287;
++pub const SYS_pkey_mprotect: ::c_long = 288;
++pub const SYS_pkey_alloc: ::c_long = 289;
++pub const SYS_pkey_free: ::c_long = 290;
++pub const SYS_statx: ::c_long = 291;
++pub const SYS_pidfd_open: ::c_long = 434;
++pub const SYS_clone3: ::c_long = 435;
+-- 
+2.27.0
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.54.0/0006-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set-libc-.patch b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0006-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set-libc-.patch
new file mode 100644
index 0000000000..d0ddb3cbe7
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0006-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set-libc-.patch
@@ -0,0 +1,31 @@
+From 4319893ebb7fca8bbd2bffc4bddb8d3ecdc08cc2 Mon Sep 17 00:00:00 2001
+From: Ralf Anton Beier <ralf_beier@me.com>
+Date: Sun, 8 Aug 2021 11:07:21 +0200
+Subject: [PATCH 6/8] FIXUP: linux/musl/mod.rs: add riscv64 to b64 set -
+ libc-0.2.93
+
+https://github.com/rust-lang/libc/pull/1994/commits/30070c822be2ef399b2ba38cdc1d72ac694d65a3
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Ralf Anton Beier <ralf_beier@me.com>
+---
+ vendor/libc-0.2.93/src/unix/linux_like/linux/musl/mod.rs | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/mod.rs b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/mod.rs
+index 00f26475d..a37f410fd 100644
+--- a/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/mod.rs
++++ b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/mod.rs
+@@ -716,7 +716,8 @@ cfg_if! {
+                  target_arch = "aarch64",
+                  target_arch = "mips64",
+                  target_arch = "powerpc64",
+-                 target_arch = "s390x"))] {
++                 target_arch = "s390x",
++                 target_arch = "riscv64"))] {
+         mod b64;
+         pub use self::b64::*;
+     } else if #[cfg(any(target_arch = "x86",
+-- 
+2.27.0
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.54.0/0007-FIXUP-Correct-definitions-to-match-musl-libc-0.2.93.patch b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0007-FIXUP-Correct-definitions-to-match-musl-libc-0.2.93.patch
new file mode 100644
index 0000000000..8be8104f40
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0007-FIXUP-Correct-definitions-to-match-musl-libc-0.2.93.patch
@@ -0,0 +1,741 @@
+From 9d240d05c6e6620f36e4ddbcbcb5862fb3269d9f Mon Sep 17 00:00:00 2001
+From: Ralf Anton Beier <ralf_beier@me.com>
+Date: Sun, 8 Aug 2021 11:09:17 +0200
+Subject: [PATCH 7/8] FIXUP Correct definitions to match musl - libc-0.2.93
+
+https://github.com/rust-lang/libc/pull/1994/commits/5f6a4d9745c79c81be63c708515ab116786554a3
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Ralf Anton Beier <ralf_beier@me.com>
+---
+ .../linux_like/linux/musl/b64/riscv64/mod.rs  | 708 ++++++++----------
+ 1 file changed, 311 insertions(+), 397 deletions(-)
+
+diff --git a/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+index 14bae11d0..c37190cca 100644
+--- a/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
++++ b/vendor/libc-0.2.93/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+@@ -191,403 +191,8 @@ s! {
+         pub l_len: ::off64_t,
+         pub l_pid: ::pid_t,
+     }
+-
+-    pub struct ip_mreqn {
+-        pub imr_multiaddr: ::in_addr,
+-        pub imr_address: ::in_addr,
+-        pub imr_ifindex: ::c_int,
+-    }
+ }
+ 
+-pub const POSIX_FADV_DONTNEED: ::c_int = 4;
+-pub const POSIX_FADV_NOREUSE: ::c_int = 5;
+-pub const VEOF: usize = 4;
+-pub const RTLD_DEEPBIND: ::c_int = 0x8;
+-pub const RTLD_GLOBAL: ::c_int = 0x100;
+-pub const RTLD_NOLOAD: ::c_int = 0x4;
+-pub const TIOCGSOFTCAR: ::c_ulong = 21529;
+-pub const TIOCSSOFTCAR: ::c_ulong = 21530;
+-pub const TIOCGRS485: ::c_int = 21550;
+-pub const TIOCSRS485: ::c_int = 21551;
+-pub const RLIMIT_RSS: ::__rlimit_resource_t = 5;
+-pub const RLIMIT_AS: ::__rlimit_resource_t = 9;
+-pub const RLIMIT_MEMLOCK: ::__rlimit_resource_t = 8;
+-pub const RLIMIT_NOFILE: ::__rlimit_resource_t = 7;
+-pub const RLIMIT_NPROC: ::__rlimit_resource_t = 6;
+-pub const O_APPEND: ::c_int = 1024;
+-pub const O_CREAT: ::c_int = 64;
+-pub const O_EXCL: ::c_int = 128;
+-pub const O_NOCTTY: ::c_int = 256;
+-pub const O_NONBLOCK: ::c_int = 2048;
+-pub const O_SYNC: ::c_int = 1052672;
+-pub const O_RSYNC: ::c_int = 1052672;
+-pub const O_DSYNC: ::c_int = 4096;
+-pub const O_FSYNC: ::c_int = 1052672;
+-pub const O_NOATIME: ::c_int = 262144;
+-pub const O_PATH: ::c_int = 2097152;
+-pub const O_TMPFILE: ::c_int = 4259840;
+-pub const MAP_GROWSDOWN: ::c_int = 256;
+-pub const EDEADLK: ::c_int = 35;
+-pub const ENAMETOOLONG: ::c_int = 36;
+-pub const ENOLCK: ::c_int = 37;
+-pub const ENOSYS: ::c_int = 38;
+-pub const ENOTEMPTY: ::c_int = 39;
+-pub const ELOOP: ::c_int = 40;
+-pub const ENOMSG: ::c_int = 42;
+-pub const EIDRM: ::c_int = 43;
+-pub const ECHRNG: ::c_int = 44;
+-pub const EL2NSYNC: ::c_int = 45;
+-pub const EL3HLT: ::c_int = 46;
+-pub const EL3RST: ::c_int = 47;
+-pub const ELNRNG: ::c_int = 48;
+-pub const EUNATCH: ::c_int = 49;
+-pub const ENOCSI: ::c_int = 50;
+-pub const EL2HLT: ::c_int = 51;
+-pub const EBADE: ::c_int = 52;
+-pub const EBADR: ::c_int = 53;
+-pub const EXFULL: ::c_int = 54;
+-pub const ENOANO: ::c_int = 55;
+-pub const EBADRQC: ::c_int = 56;
+-pub const EBADSLT: ::c_int = 57;
+-pub const EMULTIHOP: ::c_int = 72;
+-pub const EOVERFLOW: ::c_int = 75;
+-pub const ENOTUNIQ: ::c_int = 76;
+-pub const EBADFD: ::c_int = 77;
+-pub const EBADMSG: ::c_int = 74;
+-pub const EREMCHG: ::c_int = 78;
+-pub const ELIBACC: ::c_int = 79;
+-pub const ELIBBAD: ::c_int = 80;
+-pub const ELIBSCN: ::c_int = 81;
+-pub const ELIBMAX: ::c_int = 82;
+-pub const ELIBEXEC: ::c_int = 83;
+-pub const EILSEQ: ::c_int = 84;
+-pub const ERESTART: ::c_int = 85;
+-pub const ESTRPIPE: ::c_int = 86;
+-pub const EUSERS: ::c_int = 87;
+-pub const ENOTSOCK: ::c_int = 88;
+-pub const EDESTADDRREQ: ::c_int = 89;
+-pub const EMSGSIZE: ::c_int = 90;
+-pub const EPROTOTYPE: ::c_int = 91;
+-pub const ENOPROTOOPT: ::c_int = 92;
+-pub const EPROTONOSUPPORT: ::c_int = 93;
+-pub const ESOCKTNOSUPPORT: ::c_int = 94;
+-pub const EOPNOTSUPP: ::c_int = 95;
+-pub const EPFNOSUPPORT: ::c_int = 96;
+-pub const EAFNOSUPPORT: ::c_int = 97;
+-pub const EADDRINUSE: ::c_int = 98;
+-pub const EADDRNOTAVAIL: ::c_int = 99;
+-pub const ENETDOWN: ::c_int = 100;
+-pub const ENETUNREACH: ::c_int = 101;
+-pub const ENETRESET: ::c_int = 102;
+-pub const ECONNABORTED: ::c_int = 103;
+-pub const ECONNRESET: ::c_int = 104;
+-pub const ENOBUFS: ::c_int = 105;
+-pub const EISCONN: ::c_int = 106;
+-pub const ENOTCONN: ::c_int = 107;
+-pub const ESHUTDOWN: ::c_int = 108;
+-pub const ETOOMANYREFS: ::c_int = 109;
+-pub const ETIMEDOUT: ::c_int = 110;
+-pub const ECONNREFUSED: ::c_int = 111;
+-pub const EHOSTDOWN: ::c_int = 112;
+-pub const EHOSTUNREACH: ::c_int = 113;
+-pub const EALREADY: ::c_int = 114;
+-pub const EINPROGRESS: ::c_int = 115;
+-pub const ESTALE: ::c_int = 116;
+-pub const EDQUOT: ::c_int = 122;
+-pub const ENOMEDIUM: ::c_int = 123;
+-pub const EMEDIUMTYPE: ::c_int = 124;
+-pub const ECANCELED: ::c_int = 125;
+-pub const ENOKEY: ::c_int = 126;
+-pub const EKEYEXPIRED: ::c_int = 127;
+-pub const EKEYREVOKED: ::c_int = 128;
+-pub const EKEYREJECTED: ::c_int = 129;
+-pub const EOWNERDEAD: ::c_int = 130;
+-pub const ENOTRECOVERABLE: ::c_int = 131;
+-pub const EHWPOISON: ::c_int = 133;
+-pub const ERFKILL: ::c_int = 132;
+-pub const SOL_SOCKET: ::c_int = 1;
+-pub const SO_REUSEADDR: ::c_int = 2;
+-pub const SO_TYPE: ::c_int = 3;
+-pub const SO_ERROR: ::c_int = 4;
+-pub const SO_DONTROUTE: ::c_int = 5;
+-pub const SO_BROADCAST: ::c_int = 6;
+-pub const SO_SNDBUF: ::c_int = 7;
+-pub const SO_RCVBUF: ::c_int = 8;
+-pub const SO_SNDBUFFORCE: ::c_int = 32;
+-pub const SO_RCVBUFFORCE: ::c_int = 33;
+-pub const SO_KEEPALIVE: ::c_int = 9;
+-pub const SO_OOBINLINE: ::c_int = 10;
+-pub const SO_NO_CHECK: ::c_int = 11;
+-pub const SO_PRIORITY: ::c_int = 12;
+-pub const SO_LINGER: ::c_int = 13;
+-pub const SO_BSDCOMPAT: ::c_int = 14;
+-pub const SO_REUSEPORT: ::c_int = 15;
+-pub const SO_PASSCRED: ::c_int = 16;
+-pub const SO_PEERCRED: ::c_int = 17;
+-pub const SO_RCVLOWAT: ::c_int = 18;
+-pub const SO_SNDLOWAT: ::c_int = 19;
+-pub const SO_RCVTIMEO: ::c_int = 20;
+-pub const SO_SNDTIMEO: ::c_int = 21;
+-pub const SO_SECURITY_AUTHENTICATION: ::c_int = 22;
+-pub const SO_SECURITY_ENCRYPTION_TRANSPORT: ::c_int = 23;
+-pub const SO_SECURITY_ENCRYPTION_NETWORK: ::c_int = 24;
+-pub const SO_BINDTODEVICE: ::c_int = 25;
+-pub const SO_ATTACH_FILTER: ::c_int = 26;
+-pub const SO_DETACH_FILTER: ::c_int = 27;
+-pub const SO_GET_FILTER: ::c_int = 26;
+-pub const SO_PEERNAME: ::c_int = 28;
+-pub const SO_TIMESTAMP: ::c_int = 29;
+-pub const SO_ACCEPTCONN: ::c_int = 30;
+-pub const SO_PEERSEC: ::c_int = 31;
+-pub const SO_PASSSEC: ::c_int = 34;
+-pub const SO_TIMESTAMPNS: ::c_int = 35;
+-pub const SCM_TIMESTAMPNS: ::c_int = 35;
+-pub const SO_MARK: ::c_int = 36;
+-pub const SO_PROTOCOL: ::c_int = 38;
+-pub const SO_DOMAIN: ::c_int = 39;
+-pub const SO_RXQ_OVFL: ::c_int = 40;
+-pub const SO_WIFI_STATUS: ::c_int = 41;
+-pub const SCM_WIFI_STATUS: ::c_int = 41;
+-pub const SO_PEEK_OFF: ::c_int = 42;
+-pub const SO_NOFCS: ::c_int = 43;
+-pub const SO_LOCK_FILTER: ::c_int = 44;
+-pub const SO_SELECT_ERR_QUEUE: ::c_int = 45;
+-pub const SO_BUSY_POLL: ::c_int = 46;
+-pub const SO_MAX_PACING_RATE: ::c_int = 47;
+-pub const SO_BPF_EXTENSIONS: ::c_int = 48;
+-pub const SO_INCOMING_CPU: ::c_int = 49;
+-pub const SO_ATTACH_BPF: ::c_int = 50;
+-pub const SO_DETACH_BPF: ::c_int = 27;
+-pub const SOCK_STREAM: ::c_int = 1;
+-pub const SOCK_DGRAM: ::c_int = 2;
+-pub const SA_ONSTACK: ::c_int = 134217728;
+-pub const SA_SIGINFO: ::c_int = 4;
+-pub const SA_NOCLDWAIT: ::c_int = 2;
+-pub const SIGTTIN: ::c_int = 21;
+-pub const SIGTTOU: ::c_int = 22;
+-pub const SIGXCPU: ::c_int = 24;
+-pub const SIGXFSZ: ::c_int = 25;
+-pub const SIGVTALRM: ::c_int = 26;
+-pub const SIGPROF: ::c_int = 27;
+-pub const SIGWINCH: ::c_int = 28;
+-pub const SIGCHLD: ::c_int = 17;
+-pub const SIGBUS: ::c_int = 7;
+-pub const SIGUSR1: ::c_int = 10;
+-pub const SIGUSR2: ::c_int = 12;
+-pub const SIGCONT: ::c_int = 18;
+-pub const SIGSTOP: ::c_int = 19;
+-pub const SIGTSTP: ::c_int = 20;
+-pub const SIGURG: ::c_int = 23;
+-pub const SIGIO: ::c_int = 29;
+-pub const SIGSYS: ::c_int = 31;
+-pub const SIGSTKFLT: ::c_int = 16;
+-pub const SIGPOLL: ::c_int = 29;
+-pub const SIGPWR: ::c_int = 30;
+-pub const SIG_SETMASK: ::c_int = 2;
+-pub const SIG_BLOCK: ::c_int = 0;
+-pub const SIG_UNBLOCK: ::c_int = 1;
+-pub const POLLWRNORM: ::c_short = 256;
+-pub const POLLWRBAND: ::c_short = 512;
+-pub const O_ASYNC: ::c_int = 8192;
+-pub const O_NDELAY: ::c_int = 2048;
+-pub const PTRACE_DETACH: ::c_uint = 17;
+-pub const EFD_NONBLOCK: ::c_int = 2048;
+-pub const F_GETLK: ::c_int = 5;
+-pub const F_GETOWN: ::c_int = 9;
+-pub const F_SETOWN: ::c_int = 8;
+-pub const F_SETLK: ::c_int = 6;
+-pub const F_SETLKW: ::c_int = 7;
+-pub const F_RDLCK: ::c_int = 0;
+-pub const F_WRLCK: ::c_int = 1;
+-pub const F_UNLCK: ::c_int = 2;
+-pub const F_OFD_GETLK: ::c_int = 36;
+-pub const F_OFD_SETLK: ::c_int = 37;
+-pub const F_OFD_SETLKW: ::c_int = 38;
+-pub const SFD_NONBLOCK: ::c_int = 2048;
+-pub const TCSANOW: ::c_int = 0;
+-pub const TCSADRAIN: ::c_int = 1;
+-pub const TCSAFLUSH: ::c_int = 2;
+-pub const TIOCLINUX: ::c_ulong = 21532;
+-pub const TIOCGSERIAL: ::c_ulong = 21534;
+-pub const TIOCEXCL: ::c_ulong = 21516;
+-pub const TIOCNXCL: ::c_ulong = 21517;
+-pub const TIOCSCTTY: ::c_ulong = 21518;
+-pub const TIOCSTI: ::c_ulong = 21522;
+-pub const TIOCMGET: ::c_ulong = 21525;
+-pub const TIOCMBIS: ::c_ulong = 21526;
+-pub const TIOCMBIC: ::c_ulong = 21527;
+-pub const TIOCMSET: ::c_ulong = 21528;
+-pub const TIOCCONS: ::c_ulong = 21533;
+-pub const TIOCM_ST: ::c_int = 8;
+-pub const TIOCM_SR: ::c_int = 16;
+-pub const TIOCM_CTS: ::c_int = 32;
+-pub const TIOCM_CAR: ::c_int = 64;
+-pub const TIOCM_RNG: ::c_int = 128;
+-pub const TIOCM_DSR: ::c_int = 256;
+-pub const SFD_CLOEXEC: ::c_int = 524288;
+-pub const NCCS: usize = 32;
+-pub const O_TRUNC: ::c_int = 512;
+-pub const O_CLOEXEC: ::c_int = 524288;
+-pub const EBFONT: ::c_int = 59;
+-pub const ENOSTR: ::c_int = 60;
+-pub const ENODATA: ::c_int = 61;
+-pub const ETIME: ::c_int = 62;
+-pub const ENOSR: ::c_int = 63;
+-pub const ENONET: ::c_int = 64;
+-pub const ENOPKG: ::c_int = 65;
+-pub const EREMOTE: ::c_int = 66;
+-pub const ENOLINK: ::c_int = 67;
+-pub const EADV: ::c_int = 68;
+-pub const ESRMNT: ::c_int = 69;
+-pub const ECOMM: ::c_int = 70;
+-pub const EPROTO: ::c_int = 71;
+-pub const EDOTDOT: ::c_int = 73;
+-pub const SA_NODEFER: ::c_int = 1073741824;
+-pub const SA_RESETHAND: ::c_int = -2147483648;
+-pub const SA_RESTART: ::c_int = 268435456;
+-pub const SA_NOCLDSTOP: ::c_int = 1;
+-pub const EPOLL_CLOEXEC: ::c_int = 524288;
+-pub const EFD_CLOEXEC: ::c_int = 524288;
+-pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4;
+-pub const __SIZEOF_PTHREAD_MUTEXATTR_T: usize = 4;
+-pub const O_DIRECT: ::c_int = 16384;
+-pub const O_DIRECTORY: ::c_int = 65536;
+-pub const O_NOFOLLOW: ::c_int = 131072;
+-pub const MAP_HUGETLB: ::c_int = 262144;
+-pub const MAP_LOCKED: ::c_int = 8192;
+-pub const MAP_NORESERVE: ::c_int = 16384;
+-pub const MAP_ANON: ::c_int = 32;
+-pub const MAP_ANONYMOUS: ::c_int = 32;
+-pub const MAP_DENYWRITE: ::c_int = 2048;
+-pub const MAP_EXECUTABLE: ::c_int = 4096;
+-pub const MAP_POPULATE: ::c_int = 32768;
+-pub const MAP_NONBLOCK: ::c_int = 65536;
+-pub const MAP_STACK: ::c_int = 131072;
+-pub const MAP_SYNC : ::c_int = 0x080000;
+-pub const EDEADLOCK: ::c_int = 35;
+-pub const EUCLEAN: ::c_int = 117;
+-pub const ENOTNAM: ::c_int = 118;
+-pub const ENAVAIL: ::c_int = 119;
+-pub const EISNAM: ::c_int = 120;
+-pub const EREMOTEIO: ::c_int = 121;
+-pub const FIOCLEX: ::c_ulong = 21585;
+-pub const FIONCLEX: ::c_ulong = 21584;
+-pub const FIONBIO: ::c_ulong = 21537;
+-pub const MCL_CURRENT: ::c_int = 1;
+-pub const MCL_FUTURE: ::c_int = 2;
+-pub const SIGSTKSZ: ::size_t = 8192;
+-pub const MINSIGSTKSZ: ::size_t = 2048;
+-pub const CBAUD: ::tcflag_t = 4111;
+-pub const TAB1: ::tcflag_t = 2048;
+-pub const TAB2: ::tcflag_t = 4096;
+-pub const TAB3: ::tcflag_t = 6144;
+-pub const CR1: ::tcflag_t = 512;
+-pub const CR2: ::tcflag_t = 1024;
+-pub const CR3: ::tcflag_t = 1536;
+-pub const FF1: ::tcflag_t = 32768;
+-pub const BS1: ::tcflag_t = 8192;
+-pub const VT1: ::tcflag_t = 16384;
+-pub const VWERASE: usize = 14;
+-pub const VREPRINT: usize = 12;
+-pub const VSUSP: usize = 10;
+-pub const VSTART: usize = 8;
+-pub const VSTOP: usize = 9;
+-pub const VDISCARD: usize = 13;
+-pub const VTIME: usize = 5;
+-pub const IXON: ::tcflag_t = 1024;
+-pub const IXOFF: ::tcflag_t = 4096;
+-pub const ONLCR: ::tcflag_t = 4;
+-pub const CSIZE: ::tcflag_t = 48;
+-pub const CS6: ::tcflag_t = 16;
+-pub const CS7: ::tcflag_t = 32;
+-pub const CS8: ::tcflag_t = 48;
+-pub const CSTOPB: ::tcflag_t = 64;
+-pub const CREAD: ::tcflag_t = 128;
+-pub const PARENB: ::tcflag_t = 256;
+-pub const PARODD: ::tcflag_t = 512;
+-pub const HUPCL: ::tcflag_t = 1024;
+-pub const CLOCAL: ::tcflag_t = 2048;
+-pub const ECHOKE: ::tcflag_t = 2048;
+-pub const ECHOE: ::tcflag_t = 16;
+-pub const ECHOK: ::tcflag_t = 32;
+-pub const ECHONL: ::tcflag_t = 64;
+-pub const ECHOPRT: ::tcflag_t = 1024;
+-pub const ECHOCTL: ::tcflag_t = 512;
+-pub const ISIG: ::tcflag_t = 1;
+-pub const ICANON: ::tcflag_t = 2;
+-pub const PENDIN: ::tcflag_t = 16384;
+-pub const NOFLSH: ::tcflag_t = 128;
+-pub const CIBAUD: ::tcflag_t = 269418496;
+-pub const CBAUDEX: ::tcflag_t = 4096;
+-pub const VSWTC: usize = 7;
+-pub const OLCUC: ::tcflag_t = 2;
+-pub const NLDLY: ::tcflag_t = 256;
+-pub const CRDLY: ::tcflag_t = 1536;
+-pub const TABDLY: ::tcflag_t = 6144;
+-pub const BSDLY: ::tcflag_t = 8192;
+-pub const FFDLY: ::tcflag_t = 32768;
+-pub const VTDLY: ::tcflag_t = 16384;
+-pub const XTABS: ::tcflag_t = 6144;
+-pub const B0: ::speed_t = 0;
+-pub const B50: ::speed_t = 1;
+-pub const B75: ::speed_t = 2;
+-pub const B110: ::speed_t = 3;
+-pub const B134: ::speed_t = 4;
+-pub const B150: ::speed_t = 5;
+-pub const B200: ::speed_t = 6;
+-pub const B300: ::speed_t = 7;
+-pub const B600: ::speed_t = 8;
+-pub const B1200: ::speed_t = 9;
+-pub const B1800: ::speed_t = 10;
+-pub const B2400: ::speed_t = 11;
+-pub const B4800: ::speed_t = 12;
+-pub const B9600: ::speed_t = 13;
+-pub const B19200: ::speed_t = 14;
+-pub const B38400: ::speed_t = 15;
+-pub const EXTA: ::speed_t = 14;
+-pub const EXTB: ::speed_t = 15;
+-pub const B57600: ::speed_t = 4097;
+-pub const B115200: ::speed_t = 4098;
+-pub const B230400: ::speed_t = 4099;
+-pub const B460800: ::speed_t = 4100;
+-pub const B500000: ::speed_t = 4101;
+-pub const B576000: ::speed_t = 4102;
+-pub const B921600: ::speed_t = 4103;
+-pub const B1000000: ::speed_t = 4104;
+-pub const B1152000: ::speed_t = 4105;
+-pub const B1500000: ::speed_t = 4106;
+-pub const B2000000: ::speed_t = 4107;
+-pub const B2500000: ::speed_t = 4108;
+-pub const B3000000: ::speed_t = 4109;
+-pub const B3500000: ::speed_t = 4110;
+-pub const B4000000: ::speed_t = 4111;
+-pub const VEOL: usize = 11;
+-pub const VEOL2: usize = 16;
+-pub const VMIN: usize = 6;
+-pub const IEXTEN: ::tcflag_t = 32768;
+-pub const TOSTOP: ::tcflag_t = 256;
+-pub const FLUSHO: ::tcflag_t = 4096;
+-pub const EXTPROC: ::tcflag_t = 65536;
+-pub const TCGETS: ::c_ulong = 21505;
+-pub const TCSETS: ::c_ulong = 21506;
+-pub const TCSETSW: ::c_ulong = 21507;
+-pub const TCSETSF: ::c_ulong = 21508;
+-pub const TCGETA: ::c_ulong = 21509;
+-pub const TCSETA: ::c_ulong = 21510;
+-pub const TCSETAW: ::c_ulong = 21511;
+-pub const TCSETAF: ::c_ulong = 21512;
+-pub const TCSBRK: ::c_ulong = 21513;
+-pub const TCXONC: ::c_ulong = 21514;
+-pub const TCFLSH: ::c_ulong = 21515;
+-pub const TIOCINQ: ::c_ulong = 21531;
+-pub const TIOCGPGRP: ::c_ulong = 21519;
+-pub const TIOCSPGRP: ::c_ulong = 21520;
+-pub const TIOCOUTQ: ::c_ulong = 21521;
+-pub const TIOCGWINSZ: ::c_ulong = 21523;
+-pub const TIOCSWINSZ: ::c_ulong = 21524;
+-pub const FIONREAD: ::c_ulong = 21531;
+-pub const __SIZEOF_PTHREAD_MUTEX_T: usize = 40;
+-pub const __SIZEOF_PTHREAD_RWLOCK_T: usize = 56;
+ pub const SYS_read: ::c_long = 63;
+ pub const SYS_write: ::c_long = 64;
+ pub const SYS_close: ::c_long = 57;
+@@ -863,5 +468,314 @@ pub const SYS_pkey_mprotect: ::c_long = 288;
+ pub const SYS_pkey_alloc: ::c_long = 289;
+ pub const SYS_pkey_free: ::c_long = 290;
+ pub const SYS_statx: ::c_long = 291;
+-pub const SYS_pidfd_open: ::c_long = 434;
+-pub const SYS_clone3: ::c_long = 435;
++
++pub const O_APPEND: ::c_int = 1024;
++pub const O_DIRECT: ::c_int = 0x4000;
++pub const O_DIRECTORY: ::c_int = 0x10000;
++pub const O_LARGEFILE: ::c_int = 0;
++pub const O_NOFOLLOW: ::c_int = 0x20000;
++pub const O_CREAT: ::c_int = 64;
++pub const O_EXCL: ::c_int = 128;
++pub const O_NOCTTY: ::c_int = 256;
++pub const O_NONBLOCK: ::c_int = 2048;
++pub const O_SYNC: ::c_int = 1052672;
++pub const O_RSYNC: ::c_int = 1052672;
++pub const O_DSYNC: ::c_int = 4096;
++pub const O_ASYNC: ::c_int = 0x2000;
++
++pub const TIOCGRS485: ::c_int = 0x542E;
++pub const TIOCSRS485: ::c_int = 0x542F;
++
++pub const SIGSTKSZ: ::size_t = 8192;
++pub const MINSIGSTKSZ: ::size_t = 2048;
++
++pub const ENAMETOOLONG: ::c_int = 36;
++pub const ENOLCK: ::c_int = 37;
++pub const ENOSYS: ::c_int = 38;
++pub const ENOTEMPTY: ::c_int = 39;
++pub const ELOOP: ::c_int = 40;
++pub const ENOMSG: ::c_int = 42;
++pub const EIDRM: ::c_int = 43;
++pub const ECHRNG: ::c_int = 44;
++pub const EL2NSYNC: ::c_int = 45;
++pub const EL3HLT: ::c_int = 46;
++pub const EL3RST: ::c_int = 47;
++pub const ELNRNG: ::c_int = 48;
++pub const EUNATCH: ::c_int = 49;
++pub const ENOCSI: ::c_int = 50;
++pub const EL2HLT: ::c_int = 51;
++pub const EBADE: ::c_int = 52;
++pub const EBADR: ::c_int = 53;
++pub const EXFULL: ::c_int = 54;
++pub const ENOANO: ::c_int = 55;
++pub const EBADRQC: ::c_int = 56;
++pub const EBADSLT: ::c_int = 57;
++pub const EMULTIHOP: ::c_int = 72;
++pub const EOVERFLOW: ::c_int = 75;
++pub const ENOTUNIQ: ::c_int = 76;
++pub const EBADFD: ::c_int = 77;
++pub const EBADMSG: ::c_int = 74;
++pub const EREMCHG: ::c_int = 78;
++pub const ELIBACC: ::c_int = 79;
++pub const ELIBBAD: ::c_int = 80;
++pub const ELIBSCN: ::c_int = 81;
++pub const ELIBMAX: ::c_int = 82;
++pub const ELIBEXEC: ::c_int = 83;
++pub const EILSEQ: ::c_int = 84;
++pub const ERESTART: ::c_int = 85;
++pub const ESTRPIPE: ::c_int = 86;
++pub const EUSERS: ::c_int = 87;
++pub const ENOTSOCK: ::c_int = 88;
++pub const EDESTADDRREQ: ::c_int = 89;
++pub const EMSGSIZE: ::c_int = 90;
++pub const EPROTOTYPE: ::c_int = 91;
++pub const ENOPROTOOPT: ::c_int = 92;
++pub const EPROTONOSUPPORT: ::c_int = 93;
++pub const ESOCKTNOSUPPORT: ::c_int = 94;
++pub const EOPNOTSUPP: ::c_int = 95;
++pub const EPFNOSUPPORT: ::c_int = 96;
++pub const EAFNOSUPPORT: ::c_int = 97;
++pub const EADDRINUSE: ::c_int = 98;
++pub const EADDRNOTAVAIL: ::c_int = 99;
++pub const ENETDOWN: ::c_int = 100;
++pub const ENETUNREACH: ::c_int = 101;
++pub const ENETRESET: ::c_int = 102;
++pub const ECONNABORTED: ::c_int = 103;
++pub const ECONNRESET: ::c_int = 104;
++pub const ENOBUFS: ::c_int = 105;
++pub const EISCONN: ::c_int = 106;
++pub const ENOTCONN: ::c_int = 107;
++pub const ESHUTDOWN: ::c_int = 108;
++pub const ETOOMANYREFS: ::c_int = 109;
++pub const ETIMEDOUT: ::c_int = 110;
++pub const ECONNREFUSED: ::c_int = 111;
++pub const EHOSTDOWN: ::c_int = 112;
++pub const EHOSTUNREACH: ::c_int = 113;
++pub const EALREADY: ::c_int = 114;
++pub const EINPROGRESS: ::c_int = 115;
++pub const ESTALE: ::c_int = 116;
++pub const EDQUOT: ::c_int = 122;
++pub const ENOMEDIUM: ::c_int = 123;
++pub const EMEDIUMTYPE: ::c_int = 124;
++pub const ECANCELED: ::c_int = 125;
++pub const ENOKEY: ::c_int = 126;
++pub const EKEYEXPIRED: ::c_int = 127;
++pub const EKEYREVOKED: ::c_int = 128;
++pub const EKEYREJECTED: ::c_int = 129;
++pub const EOWNERDEAD: ::c_int = 130;
++pub const ENOTRECOVERABLE: ::c_int = 131;
++pub const EHWPOISON: ::c_int = 133;
++pub const ERFKILL: ::c_int = 132;
++
++pub const SA_ONSTACK: ::c_int = 0x08000000;
++pub const SA_SIGINFO: ::c_int = 0x00000004;
++pub const SA_NOCLDWAIT: ::c_int = 0x00000002;
++
++pub const SIGCHLD: ::c_int = 17;
++pub const SIGBUS: ::c_int = 7;
++pub const SIGTTIN: ::c_int = 21;
++pub const SIGTTOU: ::c_int = 22;
++pub const SIGXCPU: ::c_int = 24;
++pub const SIGXFSZ: ::c_int = 25;
++pub const SIGVTALRM: ::c_int = 26;
++pub const SIGPROF: ::c_int = 27;
++pub const SIGWINCH: ::c_int = 28;
++pub const SIGUSR1: ::c_int = 10;
++pub const SIGUSR2: ::c_int = 12;
++pub const SIGCONT: ::c_int = 18;
++pub const SIGSTOP: ::c_int = 19;
++pub const SIGTSTP: ::c_int = 20;
++pub const SIGURG: ::c_int = 23;
++pub const SIGIO: ::c_int = 29;
++pub const SIGSYS: ::c_int = 31;
++pub const SIGSTKFLT: ::c_int = 16;
++pub const SIGPOLL: ::c_int = 29;
++pub const SIGPWR: ::c_int = 30;
++pub const SIG_SETMASK: ::c_int = 2;
++pub const SIG_BLOCK: ::c_int = 0x000000;
++pub const SIG_UNBLOCK: ::c_int = 0x01;
++
++pub const F_GETLK: ::c_int = 5;
++pub const F_GETOWN: ::c_int = 9;
++pub const F_SETLK: ::c_int = 6;
++pub const F_SETLKW: ::c_int = 7;
++pub const F_SETOWN: ::c_int = 8;
++pub const F_OFD_GETLK: ::c_int = 36;
++pub const F_OFD_SETLK: ::c_int = 37;
++pub const F_OFD_SETLKW: ::c_int = 38;
++
++pub const VEOF: usize = 4;
++
++pub const POLLWRNORM: ::c_short = 0x100;
++pub const POLLWRBAND: ::c_short = 0x200;
++
++pub const SOCK_STREAM: ::c_int = 1;
++pub const SOCK_DGRAM: ::c_int = 2;
++pub const SOL_SOCKET: ::c_int = 1;
++pub const SO_REUSEADDR: ::c_int = 2;
++pub const SO_TYPE: ::c_int = 3;
++pub const SO_ERROR: ::c_int = 4;
++pub const SO_DONTROUTE: ::c_int = 5;
++pub const SO_BROADCAST: ::c_int = 6;
++pub const SO_SNDBUF: ::c_int = 7;
++pub const SO_RCVBUF: ::c_int = 8;
++pub const SO_KEEPALIVE: ::c_int = 9;
++pub const SO_OOBINLINE: ::c_int = 10;
++pub const SO_NO_CHECK: ::c_int = 11;
++pub const SO_PRIORITY: ::c_int = 12;
++pub const SO_LINGER: ::c_int = 13;
++pub const SO_BSDCOMPAT: ::c_int = 14;
++pub const SO_REUSEPORT: ::c_int = 15;
++pub const SO_ACCEPTCONN: ::c_int = 30;
++pub const SO_SNDBUFFORCE: ::c_int = 32;
++pub const SO_RCVBUFFORCE: ::c_int = 33;
++pub const SO_PROTOCOL: ::c_int = 38;
++pub const SO_DOMAIN: ::c_int = 39;
++
++pub const MAP_ANON: ::c_int = 0x0020;
++pub const MAP_GROWSDOWN: ::c_int = 0x0100;
++pub const MAP_DENYWRITE: ::c_int = 0x0800;
++pub const MAP_EXECUTABLE: ::c_int = 0x01000;
++pub const MAP_LOCKED: ::c_int = 0x02000;
++pub const MAP_NORESERVE: ::c_int = 0x04000;
++pub const MAP_POPULATE: ::c_int = 0x08000;
++pub const MAP_NONBLOCK: ::c_int = 0x010000;
++pub const MAP_STACK: ::c_int = 0x020000;
++pub const MAP_HUGETLB: ::c_int = 0x040000;
++pub const MAP_SYNC : ::c_int = 0x080000;
++
++pub const RLIMIT_NLIMITS: ::c_int = 15;
++pub const TIOCINQ: ::c_int = ::FIONREAD;
++pub const MCL_CURRENT: ::c_int = 0x0001;
++pub const MCL_FUTURE: ::c_int = 0x0002;
++pub const CBAUD: ::tcflag_t = 0o0010017;
++pub const TAB1: ::c_int = 0x00000800;
++pub const TAB2: ::c_int = 0x00001000;
++pub const TAB3: ::c_int = 0x00001800;
++pub const CR1: ::c_int = 0x00000200;
++pub const CR2: ::c_int = 0x00000400;
++pub const CR3: ::c_int = 0x00000600;
++pub const FF1: ::c_int = 0x00008000;
++pub const BS1: ::c_int = 0x00002000;
++pub const VT1: ::c_int = 0x00004000;
++pub const VWERASE: usize = 14;
++pub const VREPRINT: usize = 12;
++pub const VSUSP: usize = 10;
++pub const VSTART: usize = 8;
++pub const VSTOP: usize = 9;
++pub const VDISCARD: usize = 13;
++pub const VTIME: usize = 5;
++pub const IXON: ::tcflag_t = 0x00000400;
++pub const IXOFF: ::tcflag_t = 0x00001000;
++pub const ONLCR: ::tcflag_t = 0x4;
++pub const CSIZE: ::tcflag_t = 0x00000030;
++pub const CS6: ::tcflag_t = 0x00000010;
++pub const CS7: ::tcflag_t = 0x00000020;
++pub const CS8: ::tcflag_t = 0x00000030;
++pub const CSTOPB: ::tcflag_t = 0x00000040;
++pub const CREAD: ::tcflag_t = 0x00000080;
++pub const PARENB: ::tcflag_t = 0x00000100;
++pub const PARODD: ::tcflag_t = 0x00000200;
++pub const HUPCL: ::tcflag_t = 0x00000400;
++pub const CLOCAL: ::tcflag_t = 0x00000800;
++pub const ECHOKE: ::tcflag_t = 0x00000800;
++pub const ECHOE: ::tcflag_t = 0x00000010;
++pub const ECHOK: ::tcflag_t = 0x00000020;
++pub const ECHONL: ::tcflag_t = 0x00000040;
++pub const ECHOPRT: ::tcflag_t = 0x00000400;
++pub const ECHOCTL: ::tcflag_t = 0x00000200;
++pub const ISIG: ::tcflag_t = 0x00000001;
++pub const ICANON: ::tcflag_t = 0x00000002;
++pub const PENDIN: ::tcflag_t = 0x00004000;
++pub const NOFLSH: ::tcflag_t = 0x00000080;
++pub const CIBAUD: ::tcflag_t = 0o02003600000;
++pub const CBAUDEX: ::tcflag_t = 0o010000;
++pub const VSWTC: usize = 7;
++pub const OLCUC: ::tcflag_t = 0o000002;
++pub const NLDLY: ::tcflag_t = 0o000400;
++pub const CRDLY: ::tcflag_t = 0o003000;
++pub const TABDLY: ::tcflag_t = 0o014000;
++pub const BSDLY: ::tcflag_t = 0o020000;
++pub const FFDLY: ::tcflag_t = 0o100000;
++pub const VTDLY: ::tcflag_t = 0o040000;
++pub const XTABS: ::tcflag_t = 0o014000;
++pub const B57600: ::speed_t = 0o010001;
++pub const B115200: ::speed_t = 0o010002;
++pub const B230400: ::speed_t = 0o010003;
++pub const B460800: ::speed_t = 0o010004;
++pub const B500000: ::speed_t = 0o010005;
++pub const B576000: ::speed_t = 0o010006;
++pub const B921600: ::speed_t = 0o010007;
++pub const B1000000: ::speed_t = 0o010010;
++pub const B1152000: ::speed_t = 0o010011;
++pub const B1500000: ::speed_t = 0o010012;
++pub const B2000000: ::speed_t = 0o010013;
++pub const B2500000: ::speed_t = 0o010014;
++pub const B3000000: ::speed_t = 0o010015;
++pub const B3500000: ::speed_t = 0o010016;
++pub const B4000000: ::speed_t = 0o010017;
++
++pub const FIOCLEX: ::c_int = 0x5451;
++pub const FIONCLEX: ::c_int = 0x5450;
++pub const FIONBIO: ::c_int = 0x5421;
++pub const EDEADLK: ::c_int = 35;
++pub const EDEADLOCK: ::c_int = EDEADLK;
++pub const SO_PASSCRED: ::c_int = 16;
++pub const SO_PEERCRED: ::c_int = 17;
++pub const SO_RCVLOWAT: ::c_int = 18;
++pub const SO_SNDLOWAT: ::c_int = 19;
++pub const SO_RCVTIMEO: ::c_int = 20;
++pub const SO_SNDTIMEO: ::c_int = 21;
++pub const EXTPROC: ::tcflag_t = 0x00010000;
++pub const VEOL: usize = 11;
++pub const VEOL2: usize = 16;
++pub const VMIN: usize = 6;
++pub const IEXTEN: ::tcflag_t = 0x00008000;
++pub const TOSTOP: ::tcflag_t = 0x00000100;
++pub const FLUSHO: ::tcflag_t = 0x00001000;
++pub const TCGETS: ::c_int = 0x5401;
++pub const TCSETS: ::c_int = 0x5402;
++pub const TCSETSW: ::c_int = 0x5403;
++pub const TCSETSF: ::c_int = 0x5404;
++pub const TCGETA: ::c_int = 0x5405;
++pub const TCSETA: ::c_int = 0x5406;
++pub const TCSETAW: ::c_int = 0x5407;
++pub const TCSETAF: ::c_int = 0x5408;
++pub const TCSBRK: ::c_int = 0x5409;
++pub const TCXONC: ::c_int = 0x540A;
++pub const TCFLSH: ::c_int = 0x540B;
++pub const TIOCGSOFTCAR: ::c_int = 0x5419;
++pub const TIOCSSOFTCAR: ::c_int = 0x541A;
++pub const TIOCLINUX: ::c_int = 0x541C;
++pub const TIOCGSERIAL: ::c_int = 0x541E;
++pub const TIOCEXCL: ::c_int = 0x540C;
++pub const TIOCNXCL: ::c_int = 0x540D;
++pub const TIOCSCTTY: ::c_int = 0x540E;
++pub const TIOCGPGRP: ::c_int = 0x540F;
++pub const TIOCSPGRP: ::c_int = 0x5410;
++pub const TIOCOUTQ: ::c_int = 0x5411;
++pub const TIOCSTI: ::c_int = 0x5412;
++pub const TIOCGWINSZ: ::c_int = 0x5413;
++pub const TIOCSWINSZ: ::c_int = 0x5414;
++pub const TIOCMGET: ::c_int = 0x5415;
++pub const TIOCMBIS: ::c_int = 0x5416;
++pub const TIOCMBIC: ::c_int = 0x5417;
++pub const TIOCMSET: ::c_int = 0x5418;
++pub const FIONREAD: ::c_int = 0x541B;
++pub const TIOCCONS: ::c_int = 0x541D;
++
++pub const TIOCM_LE: ::c_int = 0x001;
++pub const TIOCM_DTR: ::c_int = 0x002;
++pub const TIOCM_RTS: ::c_int = 0x004;
++pub const TIOCM_ST: ::c_int = 0x008;
++pub const TIOCM_SR: ::c_int = 0x010;
++pub const TIOCM_CTS: ::c_int = 0x020;
++pub const TIOCM_CAR: ::c_int = 0x040;
++pub const TIOCM_RNG: ::c_int = 0x080;
++pub const TIOCM_DSR: ::c_int = 0x100;
++pub const TIOCM_CD: ::c_int = TIOCM_CAR;
++pub const TIOCM_RI: ::c_int = TIOCM_RNG;
++
++extern "C" {
++    pub fn ioctl(fd: ::c_int, request: ::c_int, ...) -> ::c_int;
++}
+-- 
+2.27.0
+
diff --git a/meta/recipes-devtools/rust/libstd-rs-1.54.0/0008-Update-checksums-for-modified-files-for-rust-1.54.0-.patch b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0008-Update-checksums-for-modified-files-for-rust-1.54.0-.patch
new file mode 100644
index 0000000000..23bb3aff38
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs-1.54.0/0008-Update-checksums-for-modified-files-for-rust-1.54.0-.patch
@@ -0,0 +1,23 @@
+From 2b1c373f9a3341e8926d6be8d7cdcedc1fc6fca3 Mon Sep 17 00:00:00 2001
+From: Ralf Anton Beier <ralf_beier@me.com>
+Date: Sun, 8 Aug 2021 11:19:24 +0200
+Subject: [PATCH 8/8] Update checksums for modified files for rust 1.54.0 and
+ libc-0.2.93
+
+Signed-off-by: Ralf Anton Beier <ralf_beier@me.com>
+---
+ vendor/libc-0.2.93/.cargo-checksum.json | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/vendor/libc-0.2.93/.cargo-checksum.json b/vendor/libc-0.2.93/.cargo-checksum.json
+index 104eaa0ea..48576fb81 100644
+--- a/vendor/libc-0.2.93/.cargo-checksum.json
++++ b/vendor/libc-0.2.93/.cargo-checksum.json
+@@ -1 +1 @@
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66e6bf633936d44014f6e4c959","src/unix/linux_like/linux/uclibc/arm/align.rs":"e4a3c27fe20a57b8d612c34cb05bc70646edb5cec7251957315afa53a7b9f936","src/unix/linux_like/linux/uclibc/arm/mod.rs":"9b691eeec0a9bf7b2abb87e09062d2c148d18e11c96ecad0edd0b74d1d0509fd","src/unix/linux_like/linux/uclibc/arm/no_align.rs":"9cd223135de75315840ff9c3fd5441ba1cb632b96b5c85a76f8316c86653db25","src/unix/linux_like/linux/uclibc/mips/mips32/align.rs":"e4a3c27fe20a57b8d612c34cb05bc70646edb5cec7251957315afa53a7b9f936","src/unix/linux_like/linux/uclibc/mips/mips32/mod.rs":"18753a99b820d69e062e3ba22a63fa86577b6dcc42f740479c7be1a4c658e1be","src/unix/linux_like/linux/uclibc/mips/mips32/no_align.rs":"9cd223135de75315840ff9c3fd5441ba1cb632b96b5c85a76f8316c86653db25","src/unix/linux_like/linux/uclibc/mips/mips64/align.rs":"a7bdcb18a37a2d91e64d5fad83ea3edc78f5412adb28f77ab077dbb26dd08b2d","src/unix/linux_like/linux/uclibc/mips/mips64/mod.rs":"e3085ba56cfbc528d7c3c55065880603238c333b6047ef51c58177508a487fcd","src/unix/linux_like/linux/uclibc/mips/mips64/no_align.rs":"4a18e3875698c85229599225ac3401a2a40da87e77b2ad4ef47c6fcd5a24ed30","src/unix/linux_like/linux/uclibc/mips/mod.rs":"4320e8731666e30f850d45d51cd59311e23cd22dad5d04b3be98a6419e70e0a1","src/unix/linux_like/linux/uclibc/mod.rs":"0438ffcfa951516cbfdbd7bdc31ccee06614d5150fd271ca6ba9ba06890041ad","src/unix/linux_like/linux/uclibc/no_align.rs":"3f28637046524618adaa1012e26cb7ffe94b9396e6b518cccdc69d59f274d709","src/unix/linux_like/linux/uclibc/x86_64/l4re.rs":"bb31053d6403091e11f95ac2203982f279f8b984a19adf30796878c45fdd8c25","src/unix/linux_like/linux/uclibc/x86_64/mod.rs":"02e21c0550a423a3f6db0a0af6a0f37cf5937feb2562a490e0ad0e09a8d9fc77","src/unix/linux_like/linux/uclibc/x86_64/other.rs":"42c3f71e58cabba373f6a55a623f3c31b85049eb64824c09c2b082b3b2d6a0a8","src/unix/linux_like/mod.rs":"35e17aa16019a82bb1667c43a97ecef151c16ecb5f489793adac918e704e21de","src/unix/mod.rs":"a5fbb90b99244f04bb37dc7d79d56261f5c5a41e9a09b7958aed9a2b4882eae8","src/unix/newlib/aarch64/mod.rs":"bb269c1468a9676442554600e87417079a787fe6220dfc23b3109639259e8710","src/unix/newlib/align.rs":"28aaf87fafbc6b312622719d472d8cf65f9e5467d15339df5f73e66d8502b28a","src/unix/newlib/arm/mod.rs":"c71be856bfd7f576b2db28af9f680211cbe6c1cac7d537bbc8020b39591af07c","src/unix/newlib/mod.rs":"407fe7e3c77f4c4c129788b3888a7da5d4b7b818ed3e96abb8de8cd780f83fb6","src/unix/newlib/no_align.rs":"e0743b2179495a9514bc3a4d1781e492878c4ec834ee0085d0891dd1712e82fb","src/unix/newlib/powerpc/mod.rs":"2d0f7af28b47f7a2a6c210ebd1c1f33ed8eac62e56b5af2b856de2ad3fdc5187","src/unix/newlib/xtensa/mod.rs":"08b314a27797ee27989f48f5a0e66e0d73670071ceabd341076cdce7ea67201c","src/unix/no_align.rs":"c06e95373b9088266e0b14bba0954eef95f93fb2b01d951855e382d22de78e53","src/unix/redox/mod.rs":"aa2fdf95ead6cde2937f2f0e7e0c72fdf2a6827d8b1bac647d3ca79e4d409348","src/unix/solarish/compat.rs":"b07a5bfac925eb012003a459ba6bddbd3bfa9c44b3394da2ac5a602e54beae9c","src/unix/solarish/illumos.rs":"e01acc1b176e15268ac0ca4d1de50bf372ba80a465af35cd612c8f7e702baf92","src/unix/solarish/mod.rs":"be9f7a37d17a7616f6dbebd871fe4ae83612af6b582ebf153284cff1e7162334","src/unix/solarish/solaris.rs":"65b005453aefa9b9d4fc860fe77cfec80d8c97a51342b15daf55fc3e808bb384","src/vxworks/aarch64.rs":"98f0afdc511cd02557e506c21fed6737585490a1dce7a9d4941d08c437762b99","src/vxworks/arm.rs":"acb7968ce99fe3f4abdf39d98f8133d21a4fba435b8ef7084777cb181d788e88","src/vxworks/mod.rs":"9caf6ff3faad5b39c9deb8eae497a61ef15aa5e03aa409a16299e700240c3b63","src/vxworks/powerpc.rs":"acb7968ce99fe3f4abdf39d98f8133d21a4fba435b8ef7084777cb181d788e88","src/vxworks/powerpc64.rs":"98f0afdc511cd02557e506c21fed6737585490a1dce7a9d4941d08c437762b99","src/vxworks/x86.rs":"552f007f38317620b23889cb7c49d1d115841252439060122f52f434fbc6e5ba","src/vxworks/x86_64.rs":"018d92be3ad628a129eff9f2f5dfbc0883d8b8e5f2fa917b900a7f98ed6b514a","src/wasi.rs":"69460feb515652ec62ff258ccba4ed46738ee472938e78a3c34cbbf7a0e865c1","src/windows/gnu/align.rs":"b2c13ec1b9f3b39a75c452c80c951dff9d0215e31d77e883b4502afb31794647","src/windows/gnu/mod.rs":"3c8c7edb7cdf5d0c44af936db2a94869585c69dfabeef30571b4f4e38375767a","src/windows/mod.rs":"a0752b528fe6239536b9e915806326b20dc06183f078592b7394a10f5f56a621","src/windows/msvc.rs":"ea6d87a6a9cd668261b1c043e7c36cf599e80b5d09f6e4502e85daa4797c7927","tests/const_fn.rs":"cb75a1f0864f926aebe79118fc34d51a0d1ade2c20a394e7774c7e545f21f1f4"},"package":"9385f66bf6105b241aa65a61cb923ef20efc665cb9f9bb50ac2f0c4b7f378d41"}
+\ No newline at end of file
+-- 
+2.27.0
+
diff --git a/meta/recipes-devtools/rust/libstd-rs.inc b/meta/recipes-devtools/rust/libstd-rs.inc
new file mode 100644
index 0000000000..987956344a
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs.inc
@@ -0,0 +1,40 @@
+SUMMARY = "Rust standard libaries"
+HOMEPAGE = "http://www.rust-lang.org"
+SECTION = "devel"
+LICENSE = "MIT | Apache-2.0"
+LIC_FILES_CHKSUM = "file://../../COPYRIGHT;md5=93a95682d51b4cb0a633a97046940ef0"
+
+RUSTLIB_DEP = ""
+inherit cargo
+
+DEPENDS:append:libc-musl = " libunwind"
+# rv32 does not have libunwind ported yet
+DEPENDS:remove:riscv32 = "libunwind"
+DEPENDS:remove:riscv64 = "libunwind"
+
+# Embed bitcode in order to allow compiling both with and without LTO
+RUSTFLAGS += "-Cembed-bitcode=yes"
+# Needed so cargo can find libbacktrace
+RUSTFLAGS += "-L ${STAGING_LIBDIR} -C link-arg=-Wl,-soname,libstd.so"
+
+S = "${RUSTSRC}/src/libstd"
+
+CARGO_FEATURES ?= "panic-unwind backtrace"
+CARGO_BUILD_FLAGS += "--features '${CARGO_FEATURES}'"
+CARGO_VENDORING_DIRECTORY = "${RUSTSRC}/vendor"
+
+do_compile:prepend () {
+    export CARGO_TARGET_DIR="${B}"
+    # For Rust 1.13.0 and newer
+    export RUSTC_BOOTSTRAP="1"
+}
+
+do_install () {
+    mkdir -p ${D}${rustlibdir}
+
+    # With the incremental build support added in 1.24, the libstd deps directory also includes dependency
+    # files that get installed. Those are really only needed to incrementally rebuild the libstd library
+    # itself and don't need to be installed.
+    rm -f ${B}/${TARGET_SYS}/${BUILD_DIR}/deps/*.d
+    cp ${B}/${TARGET_SYS}/${BUILD_DIR}/deps/* ${D}${rustlibdir}
+}
diff --git a/meta/recipes-devtools/rust/libstd-rs_1.51.0.bb b/meta/recipes-devtools/rust/libstd-rs_1.51.0.bb
new file mode 100644
index 0000000000..b4c629949c
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs_1.51.0.bb
@@ -0,0 +1,12 @@
+require rust-source-${PV}.inc
+require libstd-rs.inc
+
+SRC_URI += "file://riscv-march.patch;patchdir=../../ \
+    file://rv64gc.patch;patchdir=../../ \
+    file://0001-Add-base-definitions-for-riscv64-musl.patch;patchdir=../../ \
+    file://0002-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set.patch;patchdir=../../ \
+    file://0003-FIXUP-Correct-definitions-to-match-musl.patch;patchdir=../../ \
+    file://0004-Update-1.51.0-checksums-for-modified-files.patch;patchdir=../../ \
+"
+# libstd moved from src/libstd to library/std in 1.47+
+S = "${RUSTSRC}/library/std"
diff --git a/meta/recipes-devtools/rust/libstd-rs_1.54.0.bb b/meta/recipes-devtools/rust/libstd-rs_1.54.0.bb
new file mode 100644
index 0000000000..1239f6a176
--- /dev/null
+++ b/meta/recipes-devtools/rust/libstd-rs_1.54.0.bb
@@ -0,0 +1,11 @@
+require rust-source-${PV}.inc
+require libstd-rs.inc
+
+SRC_URI += " \
+            file://0005-Add-base-definitions-for-riscv64-musl-libc-0.2.93.patch;patchdir=../../ \
+            file://0006-FIXUP-linux-musl-mod.rs-add-riscv64-to-b64-set-libc-.patch;patchdir=../../ \
+            file://0007-FIXUP-Correct-definitions-to-match-musl-libc-0.2.93.patch;patchdir=../../ \
+            file://0008-Update-checksums-for-modified-files-for-rust-1.54.0-.patch;patchdir=../../ \
+            "
+# libstd moved from src/libstd to library/std in 1.47+
+S = "${RUSTSRC}/library/std"
diff --git a/meta/recipes-devtools/rust/rust-common.inc b/meta/recipes-devtools/rust/rust-common.inc
new file mode 100644
index 0000000000..350517c723
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-common.inc
@@ -0,0 +1,346 @@
+
+# Right now this is focused on arm-specific tune features.
+# We get away with this for now as one can only use x86-64 as the build host
+# (not arm).
+# Note that TUNE_FEATURES is _always_ refering to the target, so we really
+# don't want to use this for the host/build.
+def llvm_features_from_tune(d):
+    f = []
+    feat = d.getVar('TUNE_FEATURES')
+    if not feat:
+        return []
+    feat = frozenset(feat.split())
+
+    mach_overrides = d.getVar('MACHINEOVERRIDES')
+    mach_overrides = frozenset(mach_overrides.split(':'))
+
+    if 'vfpv4' in feat:
+        f.append("+vfp4")
+    if 'vfpv3' in feat:
+        f.append("+vfp3")
+    if 'vfpv3d16' in feat:
+        f.append("+d16")
+
+    if 'vfpv2' in feat or 'vfp' in feat:
+        f.append("+vfp2")
+
+    if 'neon' in feat:
+        f.append("+neon")
+
+    if 'mips32' in feat:
+        f.append("+mips32")
+
+    if 'mips32r2' in feat:
+        f.append("+mips32r2")
+
+    if target_is_armv7(d):
+        f.append('+v7')
+
+    if ('armv6' in mach_overrides) or ('armv6' in feat):
+        f.append("+v6")
+    if 'armv5te' in feat:
+        f.append("+strict-align")
+        f.append("+v5te")
+    elif 'armv5' in feat:
+        f.append("+strict-align")
+        f.append("+v5")
+
+    if ('armv4' in mach_overrides) or ('armv4' in feat):
+        f.append("+strict-align")
+
+    if 'dsp' in feat:
+        f.append("+dsp")
+
+    if 'thumb' in feat:
+        if d.getVar('ARM_THUMB_OPT') == "thumb":
+            if target_is_armv7(d):
+                f.append('+thumb2')
+            f.append("+thumb-mode")
+
+    if 'cortexa5' in feat:
+        f.append("+a5")
+    if 'cortexa7' in feat:
+        f.append("+a7")
+    if 'cortexa9' in feat:
+        f.append("+a9")
+    if 'cortexa15' in feat:
+        f.append("+a15")
+    if 'cortexa17' in feat:
+        f.append("+a17")
+    if ('riscv64' in feat) or ('riscv32' in feat):
+        f.append("+a,+c,+d,+f,+m")
+    return f
+
+# TARGET_CC_ARCH changes from build/cross/target so it'll do the right thing
+# this should go away when https://github.com/rust-lang/rust/pull/31709 is
+# stable (1.9.0?)
+def llvm_features_from_cc_arch(d):
+    f = []
+    feat = d.getVar('TARGET_CC_ARCH')
+    if not feat:
+        return []
+    feat = frozenset(feat.split())
+
+    if '-mmmx' in feat:
+        f.append("+mmx")
+    if '-msse' in feat:
+        f.append("+sse")
+    if '-msse2' in feat:
+        f.append("+sse2")
+    if '-msse3' in feat:
+        f.append("+sse3")
+    if '-mssse3' in feat:
+        f.append("+ssse3")
+    if '-msse4.1' in feat:
+        f.append("+sse4.1")
+    if '-msse4.2' in feat:
+        f.append("+sse4.2")
+    if '-msse4a' in feat:
+        f.append("+sse4a")
+    if '-mavx' in feat:
+        f.append("+avx")
+    if '-mavx2' in feat:
+        f.append("+avx2")
+
+    return f
+
+def llvm_features_from_target_fpu(d):
+    # TARGET_FPU can be hard or soft. +soft-float tell llvm to use soft float
+    # ABI. There is no option for hard.
+
+    fpu = d.getVar('TARGET_FPU', True)
+    return ["+soft-float"] if fpu == "soft" else []
+
+def llvm_features(d):
+    return ','.join(llvm_features_from_tune(d) +
+                    llvm_features_from_cc_arch(d) +
+                    llvm_features_from_target_fpu(d))
+
+
+## arm-unknown-linux-gnueabihf
+DATA_LAYOUT[arm] = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
+LLVM_TARGET[arm] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[arm] = "little"
+TARGET_POINTER_WIDTH[arm] = "32"
+TARGET_C_INT_WIDTH[arm] = "32"
+MAX_ATOMIC_WIDTH[arm] = "64"
+FEATURES[arm] = "+v6,+vfp2"
+
+## armv7-unknown-linux-gnueabihf
+DATA_LAYOUT[armv7] = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
+LLVM_TARGET[armv7] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[armv7] = "little"
+TARGET_POINTER_WIDTH[armv7] = "32"
+TARGET_C_INT_WIDTH[armv7] = "32"
+MAX_ATOMIC_WIDTH[armv7] = "64"
+FEATURES[armv7] = "+v7,+vfp2,+thumb2"
+
+## aarch64-unknown-linux-{gnu, musl}
+DATA_LAYOUT[aarch64] = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+LLVM_TARGET[aarch64] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[aarch64] = "little"
+TARGET_POINTER_WIDTH[aarch64] = "64"
+TARGET_C_INT_WIDTH[aarch64] = "32"
+MAX_ATOMIC_WIDTH[aarch64] = "128"
+
+## x86_64-unknown-linux-{gnu, musl}
+DATA_LAYOUT[x86_64] = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+LLVM_TARGET[x86_64] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[x86_64] = "little"
+TARGET_POINTER_WIDTH[x86_64] = "64"
+TARGET_C_INT_WIDTH[x86_64] = "32"
+MAX_ATOMIC_WIDTH[x86_64] = "64"
+
+## i686-unknown-linux-{gnu, musl}
+DATA_LAYOUT[i686] = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
+LLVM_TARGET[i686] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[i686] = "little"
+TARGET_POINTER_WIDTH[i686] = "32"
+TARGET_C_INT_WIDTH[i686] = "32"
+MAX_ATOMIC_WIDTH[i686] = "64"
+
+## XXX: a bit of a hack so qemux86 builds, clone of i686-unknown-linux-{gnu, musl} above
+DATA_LAYOUT[i586] = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
+LLVM_TARGET[i586] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[i586] = "little"
+TARGET_POINTER_WIDTH[i586] = "32"
+TARGET_C_INT_WIDTH[i586] = "32"
+MAX_ATOMIC_WIDTH[i586] = "64"
+
+## mips-unknown-linux-{gnu, musl}
+DATA_LAYOUT[mips] = "E-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64"
+LLVM_TARGET[mips] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[mips] = "big"
+TARGET_POINTER_WIDTH[mips] = "32"
+TARGET_C_INT_WIDTH[mips] = "32"
+MAX_ATOMIC_WIDTH[mips] = "32"
+
+## mipsel-unknown-linux-{gnu, musl}
+DATA_LAYOUT[mipsel] = "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64"
+LLVM_TARGET[mipsel] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[mipsel] = "little"
+TARGET_POINTER_WIDTH[mipsel] = "32"
+TARGET_C_INT_WIDTH[mipsel] = "32"
+MAX_ATOMIC_WIDTH[mipsel] = "32"
+
+## mips64-unknown-linux-{gnu, musl}
+DATA_LAYOUT[mips64] = "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128"
+LLVM_TARGET[mips64] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[mips64] = "big"
+TARGET_POINTER_WIDTH[mips64] = "64"
+TARGET_C_INT_WIDTH[mips64] = "64"
+MAX_ATOMIC_WIDTH[mips64] = "64"
+
+## mips64el-unknown-linux-{gnu, musl}
+DATA_LAYOUT[mips64el] = "e-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128"
+LLVM_TARGET[mips64el] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[mips64el] = "little"
+TARGET_POINTER_WIDTH[mips64el] = "64"
+TARGET_C_INT_WIDTH[mips64el] = "64"
+MAX_ATOMIC_WIDTH[mips64el] = "64"
+
+## powerpc-unknown-linux-{gnu, musl}
+DATA_LAYOUT[powerpc] = "E-m:e-p:32:32-i64:64-n32"
+LLVM_TARGET[powerpc] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[powerpc] = "big"
+TARGET_POINTER_WIDTH[powerpc] = "32"
+TARGET_C_INT_WIDTH[powerpc] = "32"
+MAX_ATOMIC_WIDTH[powerpc] = "32"
+
+## powerpc64le-unknown-linux-{gnu, musl}
+DATA_LAYOUT[powerpc64le] = "e-m:e-i64:64-n32:64-v256:256:256-v512:512:512"
+LLVM_TARGET[powerpc64le] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[powerpc64le] = "little"
+TARGET_POINTER_WIDTH[powerpc64le] = "64"
+TARGET_C_INT_WIDTH[powerpc64le] = "64"
+MAX_ATOMIC_WIDTH[powerpc64le] = "64"
+
+## riscv32-unknown-linux-{gnu, musl}
+DATA_LAYOUT[riscv32] = "e-m:e-p:32:32-i64:64-n32-S128"
+LLVM_TARGET[riscv32] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[riscv32] = "little"
+TARGET_POINTER_WIDTH[riscv32] = "32"
+TARGET_C_INT_WIDTH[riscv32] = "32"
+MAX_ATOMIC_WIDTH[riscv32] = "32"
+
+## riscv64-unknown-linux-{gnu, musl}
+DATA_LAYOUT[riscv64] = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"
+LLVM_TARGET[riscv64] = "${RUST_TARGET_SYS}"
+TARGET_ENDIAN[riscv64] = "little"
+TARGET_POINTER_WIDTH[riscv64] = "64"
+TARGET_C_INT_WIDTH[riscv64] = "64"
+MAX_ATOMIC_WIDTH[riscv64] = "64"
+
+def sys_for(d, thing):
+    return d.getVar('{}_SYS'.format(thing))
+
+def prefix_for(d, thing):
+    return d.getVar('{}_PREFIX'.format(thing))
+
+# Convert a normal arch (HOST_ARCH, TARGET_ARCH, BUILD_ARCH, etc) to something
+# rust's internals won't choke on.
+def arch_to_rust_target_arch(arch):
+    if arch == "i586" or arch == "i686":
+        return "x86"
+    elif arch == "mipsel":
+        return "mips"
+    elif arch == "mip64sel":
+        return "mips64"
+    elif arch == "armv7":
+        return "arm"
+    else:
+        return arch
+
+# generates our target CPU value
+def llvm_cpu(d):
+    cpu = d.getVar('PACKAGE_ARCH')
+    target = d.getVar('TRANSLATED_TARGET_ARCH')
+
+    trans = {}
+    trans['corei7-64'] = "corei7"
+    trans['core2-32'] = "core2"
+    trans['x86-64'] = "x86-64"
+    trans['i686'] = "i686"
+    trans['i586'] = "i586"
+    trans['powerpc'] = "powerpc"
+    trans['mips64'] = "mips64"
+    trans['mips64el'] = "mips64"
+    trans['riscv64'] = "generic-rv64"
+    trans['riscv32'] = "generic-rv32"
+
+    if target in ["mips", "mipsel"]:
+        feat = frozenset(d.getVar('TUNE_FEATURES').split())
+        if "mips32r2" in feat:
+            trans['mipsel'] = "mips32r2"
+            trans['mips'] = "mips32r2"
+        elif "mips32" in feat:
+            trans['mipsel'] = "mips32"
+            trans['mips'] = "mips32"
+
+    try:
+        return trans[cpu]
+    except:
+        return trans.get(target, "generic")
+
+TARGET_LLVM_CPU="${@llvm_cpu(d)}"
+TARGET_LLVM_FEATURES = "${@llvm_features(d)}"
+
+# class-native implies TARGET=HOST, and TUNE_FEATURES only describes the real
+# (original) target.
+TARGET_LLVM_FEATURES:class-native = "${@','.join(llvm_features_from_cc_arch(d))}"
+
+def rust_gen_target(d, thing, wd, features, cpu, arch):
+    import json
+    sys = sys_for(d, thing)
+    prefix = prefix_for(d, thing)
+
+    features = features or d.getVarFlag('FEATURES', arch) or ""
+    features = features.strip()
+
+    # build tspec
+    tspec = {}
+    tspec['llvm-target'] = d.getVarFlag('LLVM_TARGET', arch)
+    tspec['data-layout'] = d.getVarFlag('DATA_LAYOUT', arch)
+    tspec['max-atomic-width'] = int(d.getVarFlag('MAX_ATOMIC_WIDTH', arch))
+    tspec['target-pointer-width'] = d.getVarFlag('TARGET_POINTER_WIDTH', arch)
+    tspec['target-c-int-width'] = d.getVarFlag('TARGET_C_INT_WIDTH', arch)
+    tspec['target-endian'] = d.getVarFlag('TARGET_ENDIAN', arch)
+    tspec['arch'] = arch_to_rust_target_arch(arch)
+    tspec['os'] = "linux"
+    if "musl" in tspec['llvm-target']:
+        tspec['env'] = "musl"
+    else:
+        tspec['env'] = "gnu"
+    if "riscv64" in tspec['llvm-target']:
+        tspec['llvm-abiname'] = "lp64d"
+    if "riscv32" in tspec['llvm-target']:
+        tspec['llvm-abiname'] = "ilp32d"
+    tspec['vendor'] = "unknown"
+    tspec['target-family'] = "unix"
+    tspec['linker'] = "{}{}gcc".format(d.getVar('CCACHE'), prefix)
+    tspec['ar'] = "{}ar".format(prefix)
+    tspec['cpu'] = cpu
+    if features != "":
+        tspec['features'] = features
+    tspec['dynamic-linking'] = True
+    tspec['executables'] = True
+    tspec['linker-is-gnu'] = True
+    tspec['linker-flavor'] = "gcc"
+    tspec['has-rpath'] = True
+    tspec['has-elf-tls'] = True
+    tspec['position-independent-executables'] = True
+    tspec['panic-strategy'] = d.getVar("RUST_PANIC_STRATEGY")
+
+    # write out the target spec json file
+    with open(wd + sys + '.json', 'w') as f:
+        json.dump(tspec, f, indent=4)
+
+python do_rust_gen_targets () {
+    wd = d.getVar('WORKDIR') + '/targets/'
+    build_arch = d.getVar('BUILD_ARCH')
+    rust_gen_target(d, 'BUILD', wd, "", "generic", build_arch)
+}
+
+addtask rust_gen_targets after do_patch before do_compile
+do_rust_gen_targets[dirs] += "${WORKDIR}/targets"
+
diff --git a/meta/recipes-devtools/rust/rust-cross-canadian-common.inc b/meta/recipes-devtools/rust/rust-cross-canadian-common.inc
new file mode 100644
index 0000000000..c5d56bbeb4
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-cross-canadian-common.inc
@@ -0,0 +1,53 @@
+
+RUST_ALTERNATE_EXE_PATH = "${STAGING_LIBDIR_NATIVE}/llvm-rust/bin/llvm-config"
+
+require rust-target.inc
+
+inherit cross-canadian
+
+DEPENDS += "  \
+            virtual/${HOST_PREFIX}gcc-crosssdk \
+            virtual/nativesdk-libc rust-llvm-native \
+            virtual/${TARGET_PREFIX}compilerlibs \
+            virtual/nativesdk-${HOST_PREFIX}compilerlibs \
+            gcc-cross-${TARGET_ARCH} \
+           "
+
+# The host tools are likely not to be able to do the necessary operation on
+# the target architecturea. Alternatively one could check compatibility
+# between host/target.
+EXCLUDE_FROM_SHLIBS_${RUSTLIB_TARGET_PN} = "1"
+
+DEBUG_PREFIX_MAP = "-fdebug-prefix-map=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
+                    -fdebug-prefix-map=${STAGING_DIR_HOST}= \
+                    -fdebug-prefix-map=${STAGING_DIR_NATIVE}= \
+                    "
+
+LLVM_TARGET[x86_64] = "${RUST_HOST_SYS}"
+python do_rust_gen_targets () {
+    wd = d.getVar('WORKDIR') + '/targets/'
+    rust_gen_target(d, 'TARGET', wd, d.getVar('TARGET_LLVM_FEATURES') or "", d.getVar('TARGET_LLVM_CPU'), d.getVar('TARGET_ARCH'))
+    rust_gen_target(d, 'HOST', wd, "", "generic", d.getVar('HOST_ARCH'))
+    rust_gen_target(d, 'BUILD', wd, "", "generic", d.getVar('BUILD_ARCH'))
+}
+
+INHIBIT_DEFAULT_RUST_DEPS = "1"
+
+export WRAPPER_TARGET_CC = "${CCACHE}${TARGET_PREFIX}gcc --sysroot=${STAGING_DIR_TARGET} ${TARGET_CC_ARCH} ${SECURITY_NOPIE_CFLAGS}"
+export WRAPPER_TARGET_CXX = "${CCACHE}${TARGET_PREFIX}g++ --sysroot=${STAGING_DIR_TARGET} ${TARGET_CC_ARCH} ${SECURITY_NOPIE_CFLAGS}"
+export WRAPPER_TARGET_CCLD = "${TARGET_PREFIX}gcc --sysroot=${STAGING_DIR_TARGET} ${TARGET_CC_ARCH} ${SECURITY_NOPIE_CFLAGS}"
+export WRAPPER_TARGET_LDFLAGS = "${TARGET_LDFLAGS}"
+export WRAPPER_TARGET_AR = "${TARGET_PREFIX}ar"
+
+python do_configure:prepend() {
+    targets = [d.getVar("TARGET_SYS", True), "{}-unknown-linux-gnu".format(d.getVar("HOST_ARCH", True))]
+    hosts = ["{}-unknown-linux-gnu".format(d.getVar("HOST_ARCH", True))]
+}
+
+INSANE_SKIP:${RUSTLIB_TARGET_PN} = "file-rdeps arch ldflags"
+SKIP_FILEDEPS:${RUSTLIB_TARGET_PN} = "1"
+
+INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
+INHIBIT_PACKAGE_STRIP = "1"
+INHIBIT_SYSROOT_STRIP = "1"
+
diff --git a/meta/recipes-devtools/rust/rust-cross-canadian.inc b/meta/recipes-devtools/rust/rust-cross-canadian.inc
new file mode 100644
index 0000000000..8bbbd61bdc
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-cross-canadian.inc
@@ -0,0 +1,78 @@
+
+require rust-cross-canadian-common.inc
+
+RUSTLIB_TARGET_PN = "rust-cross-canadian-rustlib-target-${TRANSLATED_TARGET_ARCH}"
+RUSTLIB_HOST_PN = "rust-cross-canadian-rustlib-host-${TRANSLATED_TARGET_ARCH}"
+RUSTLIB_SRC_PN = "rust-cross-canadian-src"
+RUSTLIB_PKGS = "${RUSTLIB_SRC_PN} ${RUSTLIB_TARGET_PN} ${RUSTLIB_HOST_PN}"
+PN = "rust-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+
+PACKAGES = "${RUSTLIB_PKGS} ${PN}"
+RDEPENDS:${PN} += "${RUSTLIB_PKGS}"
+
+# The default behaviour of x.py changed in 1.47+ so now we need to
+# explicitly ask for the stage 2 compiler to be assembled.
+do_compile () {
+    rust_runx build --stage 2
+}
+
+do_install () {
+    # Rust requires /usr/lib to contain the libs.
+    # Similar story is with /usr/bin ruquiring  `lib` to be at the same level.
+    # The required structure is retained for simplicity.
+    SYS_LIBDIR=$(dirname ${D}${libdir})
+    SYS_BINDIR=$(dirname ${D}${bindir})
+    RUSTLIB_DIR=${SYS_LIBDIR}/${TARGET_SYS}/rustlib
+
+    install -d "${SYS_BINDIR}"
+    cp build/${SNAPSHOT_BUILD_SYS}/stage2/bin/* ${SYS_BINDIR}
+    for i in ${SYS_BINDIR}/*; do
+        chrpath -r "\$ORIGIN/../lib" ${i}
+    done
+
+    install -d "${D}${libdir}"
+    cp -pRd build/${SNAPSHOT_BUILD_SYS}/stage2/lib/${TARGET_SYS}/*.so ${SYS_LIBDIR}
+    cp -pRd build/${SNAPSHOT_BUILD_SYS}/stage2/lib/${TARGET_SYS}/rustlib ${RUSTLIB_DIR}
+
+    for i in ${SYS_LIBDIR}/*.so; do
+        chrpath -r "\$ORIGIN/../lib" ${i}
+    done
+    for i in ${RUSTLIB_DIR}/*/lib/*.so; do
+        chrpath -d ${i}
+    done
+
+    install -m 0644 "${WORKDIR}/targets/${TARGET_SYS}.json" "${RUSTLIB_DIR}"
+
+    SRC_DIR=${RUSTLIB_DIR}/src/rust
+    install -d ${SRC_DIR}/src/llvm-project
+    cp -R --no-dereference build/${SNAPSHOT_BUILD_SYS}/stage2/lib/rustlib/src/rust/src/llvm-project/libunwind ${SRC_DIR}/src/llvm-project
+    cp -R --no-dereference build/${SNAPSHOT_BUILD_SYS}/stage2/lib/rustlib/src/rust/library ${SRC_DIR}
+    cp --no-dereference build/${SNAPSHOT_BUILD_SYS}/stage2/lib/rustlib/src/rust/Cargo.lock ${SRC_DIR}
+    # Remove executable bit from any files so then SDK doesn't try to relocate.
+    chmod -R -x+X ${SRC_DIR}
+
+    ENV_SETUP_DIR=${D}${base_prefix}/environment-setup.d
+    mkdir "${ENV_SETUP_DIR}"
+    ENV_SETUP_SH="${ENV_SETUP_DIR}/rust.sh"
+
+    cat <<- EOF > "${ENV_SETUP_SH}"
+        export RUSTFLAGS="--sysroot=\$OECORE_NATIVE_SYSROOT/usr -C link-arg=--sysroot=\$OECORE_TARGET_SYSROOT -L\$OECORE_NATIVE_SYSROOT/usr/lib/${TARGET_SYS}/rustlib/${TARGET_SYS}/lib"
+        export RUST_TARGET_PATH="\$OECORE_NATIVE_SYSROOT/usr/lib/${TARGET_SYS}/rustlib"
+        EOF
+
+    chown -R root.root ${D}
+}
+
+PKG_SYS_LIBDIR = "${SDKPATHNATIVE}/usr/lib"
+PKG_SYS_BINDIR = "${SDKPATHNATIVE}/usr/bin"
+PKG_RUSTLIB_DIR = "${PKG_SYS_LIBDIR}/${TARGET_SYS}/rustlib"
+FILES:${PN} = "${PKG_SYS_LIBDIR}/*.so ${PKG_SYS_BINDIR} ${base_prefix}/environment-setup.d"
+FILES:${RUSTLIB_TARGET_PN} = "${PKG_RUSTLIB_DIR}/${TARGET_SYS} ${PKG_RUSTLIB_DIR}/${TARGET_SYS}.json"
+FILES:${RUSTLIB_HOST_PN} = "${PKG_RUSTLIB_DIR}/${BUILD_ARCH}-unknown-linux-gnu"
+FILES:${RUSTLIB_SRC_PN} = "${PKG_RUSTLIB_DIR}/src"
+
+SUMMARY:${RUSTLIB_TARGET_PN} = "Rust cross canadian libaries for ${TARGET_SYS}"
+SUMMARY:${RUSTLIB_HOST_PN} = "Rust cross canadian libaries for ${HOST_SYS}"
+SUMMARY:${RUSTLIB_SRC_PN} = "Rust standard library sources for cross canadian toolchain"
+SUMMARY:${PN} = "Rust crost canadian compiler"
+
diff --git a/meta/recipes-devtools/rust/rust-cross-canadian_1.51.0.bb b/meta/recipes-devtools/rust/rust-cross-canadian_1.51.0.bb
new file mode 100644
index 0000000000..a5d02eb8d7
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-cross-canadian_1.51.0.bb
@@ -0,0 +1,6 @@
+require rust-cross-canadian.inc
+require rust-source-${PV}.inc
+require rust-snapshot-${PV}.inc
+
+FILESEXTRAPATHS:prepend := "${THISDIR}/rust:"
+
diff --git a/meta/recipes-devtools/rust/rust-cross-canadian_1.54.0.bb b/meta/recipes-devtools/rust/rust-cross-canadian_1.54.0.bb
new file mode 100644
index 0000000000..a5d02eb8d7
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-cross-canadian_1.54.0.bb
@@ -0,0 +1,6 @@
+require rust-cross-canadian.inc
+require rust-source-${PV}.inc
+require rust-snapshot-${PV}.inc
+
+FILESEXTRAPATHS:prepend := "${THISDIR}/rust:"
+
diff --git a/meta/recipes-devtools/rust/rust-cross.inc b/meta/recipes-devtools/rust/rust-cross.inc
new file mode 100644
index 0000000000..bee7c9f12f
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-cross.inc
@@ -0,0 +1,71 @@
+require rust.inc
+inherit cross
+
+python do_rust_gen_targets () {
+    wd = d.getVar('WORKDIR') + '/targets/'
+    # It is important 'TARGET' is last here so that it overrides our less
+    # informed choices for BUILD & HOST if TARGET happens to be the same as
+    # either of them.
+    for thing in ['BUILD', 'HOST', 'TARGET']:
+        bb.debug(1, "rust_gen_target for " + thing)
+        features = ""
+        cpu = "generic"
+        arch = d.getVar('{}_ARCH'.format(thing))
+        if thing is "TARGET":
+            # arm and armv7 have different targets in llvm
+            if arch == "arm" and target_is_armv7(d):
+                arch = 'armv7'
+            features = d.getVar('TARGET_LLVM_FEATURES') or ""
+            cpu = d.getVar('TARGET_LLVM_CPU')
+        rust_gen_target(d, thing, wd, features, cpu, arch)
+}
+
+# Otherwise we'll depend on what we provide
+INHIBIT_DEFAULT_RUST_DEPS = "1"
+
+# Unlike native (which nicely maps it's DEPENDS) cross wipes them out completely.
+# Generally, we (and cross in general) need the same things that native needs,
+# so it might make sense to take it's mapping. For now, though, we just mention
+# the bits we need explicitly.
+DEPENDS += "rust-llvm-native"
+DEPENDS += "virtual/${TARGET_PREFIX}gcc virtual/${TARGET_PREFIX}compilerlibs virtual/libc"
+DEPENDS += "rust-native"
+
+PROVIDES = "virtual/${TARGET_PREFIX}rust"
+PN = "rust-cross-${TARGET_ARCH}"
+
+# In the cross compilation case, rustc doesn't seem to get the rpath quite
+# right. It manages to include '../../lib/${TARGET_PREFIX}', but doesn't
+# include the '../../lib' (ie: relative path from cross_bindir to normal
+# libdir. As a result, we end up not being able to properly reference files in normal ${libdir}.
+# Most of the time this happens to work fine as the systems libraries are
+# subsituted, but sometimes a host system will lack a library, or the right
+# version of a library (libtinfo was how I noticed this).
+#
+# FIXME: this should really be fixed in rust itself.
+# FIXME: using hard-coded relative paths is wrong, we should ask bitbake for
+#        the relative path between 2 of it's vars.
+HOST_POST_LINK_ARGS:append = " -Wl,-rpath=../../lib"
+BUILD_POST_LINK_ARGS:append = " -Wl,-rpath=../../lib"
+
+# We need the same thing for the calls to the compiler when building the runtime crap
+TARGET_CC_ARCH:append = " --sysroot=${STAGING_DIR_TARGET}"
+
+do_rust_setup_snapshot () {
+}
+
+do_configure () {
+}
+
+do_compile () {
+}
+
+do_install () {
+        mkdir -p ${D}${prefix}/${base_libdir_native}/rustlib
+        cp ${WORKDIR}/targets/${TARGET_SYS}.json ${D}${prefix}/${base_libdir_native}/rustlib
+}
+
+rust_cross_sysroot_preprocess() {
+    sysroot_stage_dir ${D}${prefix}/${base_libdir_native}/rustlib ${SYSROOT_DESTDIR}${prefix}/${base_libdir_native}/rustlib
+}
+SYSROOT_PREPROCESS_FUNCS += "rust_cross_sysroot_preprocess"
diff --git a/meta/recipes-devtools/rust/rust-cross_1.51.0.bb b/meta/recipes-devtools/rust/rust-cross_1.51.0.bb
new file mode 100644
index 0000000000..ddc25d36b5
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-cross_1.51.0.bb
@@ -0,0 +1,2 @@
+require rust-cross.inc
+require rust-source-${PV}.inc
diff --git a/meta/recipes-devtools/rust/rust-cross_1.54.0.bb b/meta/recipes-devtools/rust/rust-cross_1.54.0.bb
new file mode 100644
index 0000000000..ddc25d36b5
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-cross_1.54.0.bb
@@ -0,0 +1,2 @@
+require rust-cross.inc
+require rust-source-${PV}.inc
diff --git a/meta/recipes-devtools/rust/rust-llvm.inc b/meta/recipes-devtools/rust/rust-llvm.inc
new file mode 100644
index 0000000000..93e1866317
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-llvm.inc
@@ -0,0 +1,63 @@
+SUMMARY = "LLVM compiler framework (packaged with rust)"
+LICENSE ?= "Apache-2.0-with-LLVM-exception"
+
+SRC_URI += "file://0002-llvm-allow-env-override-of-exe-path.patch;striplevel=2"
+
+S = "${RUSTSRC}/src/llvm-project/llvm"
+
+LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=8a15a0759ef07f2682d2ba4b893c9afe"
+
+inherit cmake python3native
+
+DEPENDS += "ninja-native rust-llvm-native"
+
+ARM_INSTRUCTION_SET:armv5 = "arm"
+ARM_INSTRUCTION_SET:armv4t = "arm"
+
+LLVM_DIR = "llvm${LLVM_RELEASE}"
+
+EXTRA_OECMAKE = " \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DLLVM_TARGETS_TO_BUILD='ARM;AArch64;Mips;PowerPC;RISCV;X86' \
+    -DLLVM_BUILD_DOCS=OFF \
+    -DLLVM_ENABLE_TERMINFO=OFF \
+    -DLLVM_ENABLE_ZLIB=OFF \
+    -DLLVM_ENABLE_LIBXML2=OFF \
+    -DLLVM_ENABLE_FFI=OFF \
+    -DLLVM_INSTALL_UTILS=ON \
+    -DLLVM_BUILD_EXAMPLES=OFF \
+    -DLLVM_INCLUDE_EXAMPLES=OFF \
+    -DLLVM_BUILD_TESTS=OFF \
+    -DLLVM_INCLUDE_TESTS=OFF \
+    -DLLVM_TARGET_ARCH=${TARGET_ARCH} \
+    -DCMAKE_INSTALL_PREFIX:PATH=${libdir}/llvm-rust \
+"
+EXTRA_OECMAKE:append:class-target = "\
+    -DCMAKE_CROSSCOMPILING:BOOL=ON \
+    -DLLVM_BUILD_TOOLS=OFF \
+    -DLLVM_TABLEGEN=${STAGING_LIBDIR_NATIVE}/llvm-rust/bin/llvm-tblgen \
+    -DLLVM_CONFIG_PATH=${STAGING_LIBDIR_NATIVE}/llvm-rust/bin/llvm-config \
+"
+
+# The debug symbols are huge here (>2GB) so suppress them since they
+# provide almost no value. If you really need them then override this
+INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
+
+export YOCTO_ALTERNATE_EXE_PATH = "${STAGING_LIBDIR}/llvm-rust/bin/llvm-config"
+
+do_install:append () {
+    # we don't need any of this stuff to build Rust
+    rm -rf "${D}/usr/lib/cmake"
+}
+
+PACKAGES =+ "${PN}-bugpointpasses ${PN}-llvmhello ${PN}-liblto"
+
+# Add the extra locations to avoid the complaints about unpackaged files
+FILES:${PN}-bugpointpasses = "${libdir}/llvm-rust/lib/BugpointPasses.so"
+FILES:${PN}-llvmhello = "${libdir}/llvm-rust/lib/LLVMHello.so"
+FILES:${PN}-liblto = "${libdir}/llvm-rust/lib/libLTO.so.*"
+FILES:${PN}-staticdev =+ "${libdir}/llvm-rust/*/*.a"
+FILES:${PN} += "${libdir}/libLLVM*.so.* ${libdir}/llvm-rust/lib/*.so.* ${libdir}/llvm-rust/bin"
+FILES:${PN}-dev += "${datadir}/llvm ${libdir}/llvm-rust/lib/*.so ${libdir}/llvm-rust/include ${libdir}/llvm-rust/share ${libdir}/llvm-rust/lib/cmake"
+
+BBCLASSEXTEND = "native"
diff --git a/meta/recipes-devtools/rust/rust-llvm/0001-nfc-Fix-missing-include.patch b/meta/recipes-devtools/rust/rust-llvm/0001-nfc-Fix-missing-include.patch
new file mode 100644
index 0000000000..f6dee77ab2
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-llvm/0001-nfc-Fix-missing-include.patch
@@ -0,0 +1,26 @@
+From 3b7e611bd58ba842470d17374c550e14bceca5c7 Mon Sep 17 00:00:00 2001
+From: serge-sans-paille <sguelton@redhat.com>
+Date: Tue, 10 Nov 2020 14:55:25 +0100
+Subject: [PATCH] [nfc] Fix missing include
+
+Upstream-Status: Backport [https://github.com/llvm/llvm-project/commit/b498303066a63a203d24f739b2d2e0e56dca70d1]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ llvm/utils/benchmark/src/benchmark_register.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/llvm/utils/benchmark/src/benchmark_register.h b/llvm/utils/benchmark/src/benchmark_register.h
+index 0705e219f2fa..4caa5ad4da07 100644
+--- a/llvm/utils/benchmark/src/benchmark_register.h
++++ b/llvm/utils/benchmark/src/benchmark_register.h
+@@ -1,6 +1,7 @@
+ #ifndef BENCHMARK_REGISTER_H
+ #define BENCHMARK_REGISTER_H
+ 
++#include <limits>
+ #include <vector>
+ 
+ #include "check.h"
+-- 
+2.30.1
+
diff --git a/meta/recipes-devtools/rust/rust-llvm/0002-llvm-allow-env-override-of-exe-path.patch b/meta/recipes-devtools/rust/rust-llvm/0002-llvm-allow-env-override-of-exe-path.patch
new file mode 100644
index 0000000000..943c2118bb
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-llvm/0002-llvm-allow-env-override-of-exe-path.patch
@@ -0,0 +1,32 @@
+From 7111770e8290082530d920e120995bf81431b0aa Mon Sep 17 00:00:00 2001
+From: Martin Kelly <mkelly@xevo.com>
+Date: Fri, 19 May 2017 00:22:57 -0700
+Subject: [PATCH 12/18] llvm: allow env override of exe path
+
+When using a native llvm-config from inside a sysroot, we need llvm-config to
+return the libraries, include directories, etc. from inside the sysroot rather
+than from the native sysroot. Thus provide an env override for calling
+llvm-config from a target sysroot.
+
+Signed-off-by: Martin Kelly <mkelly@xevo.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ llvm/tools/llvm-config/llvm-config.cpp | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/llvm/tools/llvm-config/llvm-config.cpp
++++ b/llvm/tools/llvm-config/llvm-config.cpp
+@@ -226,6 +226,13 @@ Typical components:\n\
+ 
+ /// Compute the path to the main executable.
+ std::string GetExecutablePath(const char *Argv0) {
++  // Hack for Yocto: we need to override the root path when we are using
++  // llvm-config from within a target sysroot.
++  const char *Sysroot = std::getenv("YOCTO_ALTERNATE_EXE_PATH");
++  if (Sysroot != nullptr) {
++    return Sysroot;
++  }
++
+   // This just needs to be some symbol in the binary; C++ doesn't
+   // allow taking the address of ::main however.
+   void *P = (void *)(intptr_t)GetExecutablePath;
diff --git a/meta/recipes-devtools/rust/rust-llvm_1.51.0.bb b/meta/recipes-devtools/rust/rust-llvm_1.51.0.bb
new file mode 100644
index 0000000000..fa4d77b1f9
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-llvm_1.51.0.bb
@@ -0,0 +1,7 @@
+# check src/llvm-project/llvm/CMakeLists.txt for llvm version in use
+#
+LLVM_RELEASE = "11.0.1"
+require rust-source-${PV}.inc
+require rust-llvm.inc
+
+SRC_URI += "file://0001-nfc-Fix-missing-include.patch;striplevel=2" 
\ No newline at end of file
diff --git a/meta/recipes-devtools/rust/rust-llvm_1.54.0.bb b/meta/recipes-devtools/rust/rust-llvm_1.54.0.bb
new file mode 100644
index 0000000000..81b2bd12b7
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-llvm_1.54.0.bb
@@ -0,0 +1,5 @@
+# check src/llvm-project/llvm/CMakeLists.txt for llvm version in use
+#
+LLVM_RELEASE = "12.0.1"
+require rust-source-${PV}.inc
+require rust-llvm.inc
diff --git a/meta/recipes-devtools/rust/rust-snapshot-1.51.0.inc b/meta/recipes-devtools/rust/rust-snapshot-1.51.0.inc
new file mode 100644
index 0000000000..48de352f76
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-snapshot-1.51.0.inc
@@ -0,0 +1,18 @@
+require rust-snapshot.inc
+
+## This is information on the rust-snapshot (binary) used to build our current release.
+## snapshot info is taken from rust/src/stage0.txt
+## TODO: find a way to add additional SRC_URIs based on the contents of an
+##       earlier SRC_URI.
+RS_VERSION = "1.50.0"
+CARGO_VERSION = "1.50.0"
+
+# TODO: Add hashes for other architecture toolchains as well. Make a script?
+SRC_URI[rust-std-snapshot-x86_64.sha256sum] = "f1eb68db2b28a56ed8701edba7cf3688011d903ca12ff9d85bd21d3f8f614792"
+SRC_URI[rustc-snapshot-x86_64.sha256sum] = "9bebd360bcd9b5bb58f2a02930b9db4ae291adef259c96377f1f4cbd240bcf86"
+SRC_URI[cargo-snapshot-x86_64.sha256sum] = "3cb2c68e987e5681fca9c930973f408a71151b1b255e69669a08e54d446ee803"
+
+SRC_URI[rust-std-snapshot-aarch64.sha256sum] = "1a1b1a540d531c89e866083f84ef67125dee108844e4e415b07c3a1000006544"
+SRC_URI[rustc-snapshot-aarch64.sha256sum] = "9b956d97d7e428ecd8634d467659ebdb5bd79c387b88363be8749eddd7f98756"
+SRC_URI[cargo-snapshot-aarch64.sha256sum] = "f3c772f455406f67991ac20cff56a4fcd2d01454e29280c566119ab5180307ea"
+
diff --git a/meta/recipes-devtools/rust/rust-snapshot-1.54.0.inc b/meta/recipes-devtools/rust/rust-snapshot-1.54.0.inc
new file mode 100644
index 0000000000..598f4ed109
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-snapshot-1.54.0.inc
@@ -0,0 +1,18 @@
+require rust-snapshot.inc
+
+## This is information on the rust-snapshot (binary) used to build our current release.
+## snapshot info is taken from rust/src/stage0.txt
+## TODO: find a way to add additional SRC_URIs based on the contents of an
+##       earlier SRC_URI.
+RS_VERSION = "1.53.0"
+CARGO_VERSION = "1.53.0"
+
+# TODO: Add hashes for other architecture toolchains as well. Make a script?
+SRC_URI[rust-std-snapshot-x86_64.sha256sum] = "66d5257bbd194db08e67ca63a74cc80cdc4a36eaa30bf7dfe65861d9deaff7f7"
+SRC_URI[rustc-snapshot-x86_64.sha256sum] = "9c2f0443a546dd18f1f020c7711a7b9864432545ceb812e79315c1e76508b193"
+SRC_URI[cargo-snapshot-x86_64.sha256sum] = "e4437f6c83574fc60e183f4df439190f7610e4a669476802795645da66fbb83b"
+
+SRC_URI[rust-std-snapshot-aarch64.sha256sum] = "fc261d0ff057c58b36057c30217bad1a29a9a3f257c70f5df88ad3f1d982386e"
+SRC_URI[rustc-snapshot-aarch64.sha256sum] = "a857e5c615f6b5b3afc6b707ae007b3b4624585b0b2ba9b38b553114db37f8d5"
+SRC_URI[cargo-snapshot-aarch64.sha256sum] = "4fa425a2d4633aeca67fa42695b3b9100f8b988dd1c21e60d6b2aa1164e55c0c"
+
diff --git a/meta/recipes-devtools/rust/rust-snapshot.inc b/meta/recipes-devtools/rust/rust-snapshot.inc
new file mode 100644
index 0000000000..79d03afd1b
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-snapshot.inc
@@ -0,0 +1,9 @@
+SRC_URI += " \
+    https://static.rust-lang.org/dist/${RUST_STD_SNAPSHOT}.tar.xz;name=rust-std-snapshot-${BUILD_ARCH};subdir=rust-snapshot-components \
+    https://static.rust-lang.org/dist/${RUSTC_SNAPSHOT}.tar.xz;name=rustc-snapshot-${BUILD_ARCH};subdir=rust-snapshot-components \
+    https://static.rust-lang.org/dist/${CARGO_SNAPSHOT}.tar.xz;name=cargo-snapshot-${BUILD_ARCH};subdir=rust-snapshot-components \
+"
+
+RUST_STD_SNAPSHOT = "rust-std-${RS_VERSION}-${BUILD_ARCH}-unknown-linux-gnu"
+RUSTC_SNAPSHOT = "rustc-${RS_VERSION}-${BUILD_ARCH}-unknown-linux-gnu"
+CARGO_SNAPSHOT = "cargo-${CARGO_VERSION}-${BUILD_ARCH}-unknown-linux-gnu"
diff --git a/meta/recipes-devtools/rust/rust-source-1.51.0.inc b/meta/recipes-devtools/rust/rust-source-1.51.0.inc
new file mode 100644
index 0000000000..e9094c666a
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-source-1.51.0.inc
@@ -0,0 +1,3 @@
+require rust-source.inc
+
+SRC_URI[rust.sha256sum] = "92c68a91fca33cbafb83442cde722d010cc387dc1ee8a2680e2fb33a575821a1"
diff --git a/meta/recipes-devtools/rust/rust-source-1.54.0.inc b/meta/recipes-devtools/rust/rust-source-1.54.0.inc
new file mode 100644
index 0000000000..335c7ceb45
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-source-1.54.0.inc
@@ -0,0 +1,3 @@
+require rust-source.inc
+
+SRC_URI[rust.sha256sum] = "a2934f85f76a35a3796c0fefd31e91f5b6dd8377cd8c3769c1c10e7ce7a495f4"
diff --git a/meta/recipes-devtools/rust/rust-source.inc b/meta/recipes-devtools/rust/rust-source.inc
new file mode 100644
index 0000000000..52502fb49f
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-source.inc
@@ -0,0 +1,3 @@
+SRC_URI += "https://static.rust-lang.org/dist/rustc-${PV}-src.tar.xz;name=rust"
+
+RUSTSRC = "${WORKDIR}/rustc-${PV}-src"
diff --git a/meta/recipes-devtools/rust/rust-target.inc b/meta/recipes-devtools/rust/rust-target.inc
new file mode 100644
index 0000000000..3f637b3ba5
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-target.inc
@@ -0,0 +1,10 @@
+require rust.inc
+
+DEPENDS += "rust-llvm (=${PV})"
+
+# Otherwise we'll depend on what we provide
+INHIBIT_DEFAULT_RUST_DEPS:class-native = "1"
+# We don't need to depend on gcc-native because yocto assumes it exists
+PROVIDES:class-native = "virtual/${TARGET_PREFIX}rust"
+
+BBCLASSEXTEND = "native"
diff --git a/meta/recipes-devtools/rust/rust-tools-cross-canadian.inc b/meta/recipes-devtools/rust/rust-tools-cross-canadian.inc
new file mode 100644
index 0000000000..f0358551ae
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-tools-cross-canadian.inc
@@ -0,0 +1,38 @@
+
+require rust-cross-canadian-common.inc
+
+RUST_TOOLS_CLIPPY_PN = "rust-tools-clippy-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+RUST_TOOLS_RUSTFMT_PN = "rust-tools-rustfmt-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+RUST_TOOLS_PKGS = "${RUST_TOOLS_CLIPPY_PN} ${RUST_TOOLS_RUSTFMT_PN}"
+PN = "rust-tools-cross-canadian-${TRANSLATED_TARGET_ARCH}"
+
+PACKAGES = "${RUST_TOOLS_CLIPPY_PN} ${RUST_TOOLS_RUSTFMT_PN} ${PN}"
+RDEPENDS:${PN} += "${RUST_TOOLS_PKGS}"
+
+do_compile () {
+    rust_runx build --stage 2 src/tools/clippy
+    rust_runx build --stage 2 src/tools/rustfmt
+}
+
+do_install () {
+    SYS_BINDIR=$(dirname ${D}${bindir})
+
+    install -d "${SYS_BINDIR}"
+    cp build/${SNAPSHOT_BUILD_SYS}/stage2-tools-bin/* ${SYS_BINDIR}
+    for i in ${SYS_BINDIR}/*; do
+        chrpath -r "\$ORIGIN/../lib" ${i}
+    done
+
+    chown -R root.root ${D}
+}
+
+ALLOW_EMPTY:${PN} = "1"
+
+PKG_SYS_BINDIR = "${SDKPATHNATIVE}/usr/bin"
+FILES:${RUST_TOOLS_CLIPPY_PN} = "${PKG_SYS_BINDIR}/cargo-clippy ${PKG_SYS_BINDIR}/clippy-driver"
+FILES:${RUST_TOOLS_RUSTFMT_PN} = "${PKG_SYS_BINDIR}/rustfmt"
+
+SUMMARY:${PN} = "Rust helper tools"
+SUMMARY:${RUST_TOOLS_CLIPPY_PN} = "A collection of lints to catch common mistakes and improve your Rust code"
+SUMMARY:${RUST_TOOLS_RUSTFMT_PN} = "A tool for formatting Rust code according to style guidelines"
+
diff --git a/meta/recipes-devtools/rust/rust-tools-cross-canadian_1.51.0.bb b/meta/recipes-devtools/rust/rust-tools-cross-canadian_1.51.0.bb
new file mode 100644
index 0000000000..053147ba46
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-tools-cross-canadian_1.51.0.bb
@@ -0,0 +1,6 @@
+require rust-tools-cross-canadian.inc
+require rust-source-${PV}.inc
+require rust-snapshot-${PV}.inc
+
+FILESEXTRAPATHS:prepend := "${THISDIR}/rust:"
+
diff --git a/meta/recipes-devtools/rust/rust-tools-cross-canadian_1.54.0.bb b/meta/recipes-devtools/rust/rust-tools-cross-canadian_1.54.0.bb
new file mode 100644
index 0000000000..053147ba46
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust-tools-cross-canadian_1.54.0.bb
@@ -0,0 +1,6 @@
+require rust-tools-cross-canadian.inc
+require rust-source-${PV}.inc
+require rust-snapshot-${PV}.inc
+
+FILESEXTRAPATHS:prepend := "${THISDIR}/rust:"
+
diff --git a/meta/recipes-devtools/rust/rust.inc b/meta/recipes-devtools/rust/rust.inc
new file mode 100644
index 0000000000..6045ab4d42
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust.inc
@@ -0,0 +1,193 @@
+SUMMARY = "Rust compiler and runtime libaries"
+HOMEPAGE = "http://www.rust-lang.org"
+SECTION = "devel"
+LICENSE = "MIT | Apache-2.0"
+LIC_FILES_CHKSUM = "file://COPYRIGHT;md5=93a95682d51b4cb0a633a97046940ef0"
+
+inherit rust
+inherit cargo_common
+
+DEPENDS += "file-native python3-native"
+DEPENDS:append:class-native = " rust-llvm-native"
+
+S = "${RUSTSRC}"
+
+# We generate local targets, and need to be able to locate them
+export RUST_TARGET_PATH="${WORKDIR}/targets/"
+
+export FORCE_CRATE_HASH="${BB_TASKHASH}"
+
+RUST_ALTERNATE_EXE_PATH ?= "${STAGING_LIBDIR}/llvm-rust/bin/llvm-config"
+export YOCTO_ALTERNATE_EXE_PATH = "${RUST_ALTERNATE_EXE_PATH}"
+export YOCTO_ALTERNATE_MULTILIB_NAME = "/${BASELIB}"
+
+# We don't want to use bitbakes vendoring because the rust sources do their
+# own vendoring.
+CARGO_DISABLE_BITBAKE_VENDORING = "1"
+
+# We can't use RUST_BUILD_SYS here because that may be "musl" if
+# TCLIBC="musl". Snapshots are always -unknown-linux-gnu
+SNAPSHOT_BUILD_SYS = "${BUILD_ARCH}-unknown-linux-gnu"
+setup_cargo_environment () {
+    # The first step is to build bootstrap and some early stage tools,
+    # these are build for the same target as the snapshot, e.g.
+    # x86_64-unknown-linux-gnu.
+    # Later stages are build for the native target (i.e. target.x86_64-linux)
+    cargo_common_do_configure
+
+    printf '[target.%s]\n' "${SNAPSHOT_BUILD_SYS}" >> ${CARGO_HOME}/config
+    printf "linker = '%s'\n" "${RUST_BUILD_CCLD}" >> ${CARGO_HOME}/config
+}
+
+include rust-common.inc
+
+do_rust_setup_snapshot () {
+    for installer in "${WORKDIR}/rust-snapshot-components/"*"/install.sh"; do
+        "${installer}" --prefix="${WORKDIR}/rust-snapshot" --disable-ldconfig
+    done
+
+    # Some versions of rust (e.g. 1.18.0) tries to find cargo in stage0/bin/cargo
+    # and fail without it there.
+    mkdir -p ${RUSTSRC}/build/${BUILD_SYS}
+    ln -sf ${WORKDIR}/rust-snapshot/ ${RUSTSRC}/build/${BUILD_SYS}/stage0
+}
+addtask rust_setup_snapshot after do_unpack before do_configure
+do_rust_setup_snapshot[dirs] += "${WORKDIR}/rust-snapshot"
+
+python do_configure() {
+    import json
+    try:
+        import configparser
+    except ImportError:
+        import ConfigParser as configparser
+
+    # toml is rather similar to standard ini like format except it likes values
+    # that look more JSON like. So for our purposes simply escaping all values
+    # as JSON seem to work fine.
+
+    e = lambda s: json.dumps(s)
+
+    config = configparser.RawConfigParser()
+
+    # [target.ARCH-poky-linux]
+    target_section = "target.{}".format(d.getVar('TARGET_SYS', True))
+    config.add_section(target_section)
+
+    llvm_config = d.expand("${YOCTO_ALTERNATE_EXE_PATH}")
+    config.set(target_section, "llvm-config", e(llvm_config))
+
+    config.set(target_section, "cxx", e(d.expand("${RUST_TARGET_CXX}")))
+    config.set(target_section, "cc", e(d.expand("${RUST_TARGET_CC}")))
+
+    # If we don't do this rust-native will compile it's own llvm for BUILD.
+    # [target.${BUILD_ARCH}-unknown-linux-gnu]
+    target_section = "target.{}".format(d.getVar('SNAPSHOT_BUILD_SYS', True))
+    config.add_section(target_section)
+
+    config.set(target_section, "llvm-config", e(llvm_config))
+
+    config.set(target_section, "cxx", e(d.expand("${RUST_BUILD_CXX}")))
+    config.set(target_section, "cc", e(d.expand("${RUST_BUILD_CC}")))
+
+    # [rust]
+    config.add_section("rust")
+    config.set("rust", "rpath", e(True))
+    config.set("rust", "channel", e("stable"))
+
+    # Whether or not to optimize the compiler and standard library
+    config.set("rust", "optimize", e(True))
+
+    # [build]
+    config.add_section("build")
+    config.set("build", "submodules", e(False))
+    config.set("build", "docs", e(False))
+
+    rustc = d.expand("${WORKDIR}/rust-snapshot/bin/rustc")
+    config.set("build", "rustc", e(rustc))
+
+    # Support for the profiler runtime to generate e.g. coverage report,
+    # PGO etc.
+    config.set("build", "profiler", e(True))
+
+    cargo = d.expand("${WORKDIR}/rust-snapshot/bin/cargo")
+    config.set("build", "cargo", e(cargo))
+
+    config.set("build", "vendor", e(True))
+
+    if not "targets" in locals():
+        targets = [d.getVar("TARGET_SYS", True)]
+    config.set("build", "target", e(targets))
+
+    if not "hosts" in locals():
+        hosts = [d.getVar("HOST_SYS", True)]
+    config.set("build", "host", e(hosts))
+
+    # We can't use BUILD_SYS since that is something the rust snapshot knows
+    # nothing about when trying to build some stage0 tools (like fabricate)
+    config.set("build", "build", e(d.getVar("SNAPSHOT_BUILD_SYS", True)))
+
+    # [install]
+    config.add_section("install")
+    # ./x.py install doesn't have any notion of "destdir"
+    # but we can prepend ${D} to all the directories instead
+    config.set("install", "prefix",  e(d.getVar("D", True) + d.getVar("prefix", True)))
+    config.set("install", "bindir",  e(d.getVar("D", True) + d.getVar("bindir", True)))
+    config.set("install", "libdir",  e(d.getVar("D", True) + d.getVar("libdir", True)))
+    config.set("install", "datadir", e(d.getVar("D", True) + d.getVar("datadir", True)))
+    config.set("install", "mandir",  e(d.getVar("D", True) + d.getVar("mandir", True)))
+
+    with open("config.toml", "w") as f:
+        f.write('changelog-seen = 2\n\n')
+        config.write(f)
+
+    # set up ${WORKDIR}/cargo_home
+    bb.build.exec_func("setup_cargo_environment", d)
+}
+
+
+rust_runx () {
+    echo "COMPILE ${PN}" "$@"
+
+    # CFLAGS, LDFLAGS, CXXFLAGS, CPPFLAGS are used by rust's build for a
+    # wide range of targets (not just TARGET). Yocto's settings for them will
+    # be inappropriate, avoid using.
+    unset CFLAGS
+    unset LDFLAGS
+    unset CXXFLAGS
+    unset CPPFLAGS
+
+    oe_cargo_fix_env
+
+    python3 src/bootstrap/bootstrap.py ${@oe.utils.parallel_make_argument(d, '-j %d')} "$@" --verbose
+}
+rust_runx[vardepsexclude] += "PARALLEL_MAKE"
+
+do_compile () {
+    rust_runx build
+}
+
+rust_do_install () {
+    mkdir -p ${D}${bindir}
+    cp build/${HOST_SYS}/stage2/bin/* ${D}${bindir}
+
+    mkdir -p ${D}${libdir}/rustlib
+    cp -pRd build/${HOST_SYS}/stage2/lib/* ${D}${libdir}
+    # Remove absolute symlink so bitbake doesn't complain
+    rm -f ${D}${libdir}/rustlib/src/rust
+}
+
+rust_install_targets() {
+    # Install our custom target.json files
+    local td="${D}${libdir}/rustlib/"
+    install -d "$td"
+    for tgt in "${WORKDIR}/targets/"* ; do
+        install -m 0644 "$tgt" "$td"
+    done
+}
+
+
+do_install () {
+    rust_do_install
+    rust_install_targets
+}
+# ex: sts=4 et sw=4 ts=8
diff --git a/meta/recipes-devtools/rust/rust/0001-rustc_target-Fix-dash-vs-underscore-mismatches-in-op.patch b/meta/recipes-devtools/rust/rust/0001-rustc_target-Fix-dash-vs-underscore-mismatches-in-op.patch
new file mode 100644
index 0000000000..13d81eaa37
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust/0001-rustc_target-Fix-dash-vs-underscore-mismatches-in-op.patch
@@ -0,0 +1,75 @@
+From dd682cb48c8b667859dded98a4bbfbd891a1eca4 Mon Sep 17 00:00:00 2001
+From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
+Date: Thu, 12 Nov 2020 19:16:59 +0300
+Subject: [PATCH] rustc_target: Fix dash vs underscore mismatches in option
+ names
+
+---
+ compiler/rustc_target/src/spec/mod.rs | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
+index f949bf95a50..f837114ee74 100644
+--- a/compiler/rustc_target/src/spec/mod.rs
++++ b/compiler/rustc_target/src/spec/mod.rs
+@@ -1428,8 +1428,8 @@ pub fn from_json(obj: Json) -> Result<Target, String> {
+         }
+ 
+         key!(is_builtin, bool);
+-        key!(endian = "target_endian");
+-        key!(c_int_width = "target_c_int_width");
++        key!(endian = "target-endian");
++        key!(c_int_width = "target-c-int-width");
+         key!(os);
+         key!(env);
+         key!(vendor);
+@@ -1466,7 +1466,7 @@ pub fn from_json(obj: Json) -> Result<Target, String> {
+         key!(exe_suffix);
+         key!(staticlib_prefix);
+         key!(staticlib_suffix);
+-        key!(os_family = "target_family", optional);
++        key!(os_family = "target-family", optional);
+         key!(abi_return_struct_as_int, bool);
+         key!(is_like_osx, bool);
+         key!(is_like_solaris, bool);
+@@ -1511,7 +1511,7 @@ pub fn from_json(obj: Json) -> Result<Target, String> {
+         key!(limit_rdylib_exports, bool);
+         key!(override_export_symbols, opt_list);
+         key!(merge_functions, MergeFunctions)?;
+-        key!(mcount = "target_mcount");
++        key!(mcount = "target-mcount");
+         key!(llvm_abiname);
+         key!(relax_elf_relocations, bool);
+         key!(llvm_args, list);
+@@ -1663,8 +1663,8 @@ fn to_json(&self) -> Json {
+         target_val!(data_layout);
+ 
+         target_option_val!(is_builtin);
+-        target_option_val!(endian, "target_endian");
+-        target_option_val!(c_int_width, "target_c_int_width");
++        target_option_val!(endian, "target-endian");
++        target_option_val!(c_int_width, "target-c-int-width");
+         target_option_val!(os);
+         target_option_val!(env);
+         target_option_val!(vendor);
+@@ -1701,7 +1701,7 @@ fn to_json(&self) -> Json {
+         target_option_val!(exe_suffix);
+         target_option_val!(staticlib_prefix);
+         target_option_val!(staticlib_suffix);
+-        target_option_val!(os_family, "target_family");
++        target_option_val!(os_family, "target-family");
+         target_option_val!(abi_return_struct_as_int);
+         target_option_val!(is_like_osx);
+         target_option_val!(is_like_solaris);
+@@ -1746,7 +1746,7 @@ fn to_json(&self) -> Json {
+         target_option_val!(limit_rdylib_exports);
+         target_option_val!(override_export_symbols);
+         target_option_val!(merge_functions);
+-        target_option_val!(mcount, "target_mcount");
++        target_option_val!(mcount, "target-mcount");
+         target_option_val!(llvm_abiname);
+         target_option_val!(relax_elf_relocations);
+         target_option_val!(llvm_args);
+-- 
+2.28.0
+
diff --git a/meta/recipes-devtools/rust/rust_1.51.0.bb b/meta/recipes-devtools/rust/rust_1.51.0.bb
new file mode 100644
index 0000000000..05904453f7
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust_1.51.0.bb
@@ -0,0 +1,16 @@
+require rust-target.inc
+require rust-source-${PV}.inc
+require rust-snapshot-${PV}.inc
+
+SRC_URI += " \
+             file://riscv-march.patch \
+             file://rv64gc.patch \
+           "
+
+do_compile () {
+    rust_runx build --stage 2
+}
+
+rust_do_install() {
+    rust_runx install
+}
diff --git a/meta/recipes-devtools/rust/rust_1.54.0.bb b/meta/recipes-devtools/rust/rust_1.54.0.bb
new file mode 100644
index 0000000000..07221ac127
--- /dev/null
+++ b/meta/recipes-devtools/rust/rust_1.54.0.bb
@@ -0,0 +1,11 @@
+require rust-target.inc
+require rust-source-${PV}.inc
+require rust-snapshot-${PV}.inc
+
+do_compile () {
+    rust_runx build --stage 2
+}
+
+rust_do_install() {
+    rust_runx install
+}
diff --git a/meta/recipes-example/rust-hello-world/rust-hello-world/0001-enable-LTO.patch b/meta/recipes-example/rust-hello-world/rust-hello-world/0001-enable-LTO.patch
new file mode 100644
index 0000000000..56ef9e73e6
--- /dev/null
+++ b/meta/recipes-example/rust-hello-world/rust-hello-world/0001-enable-LTO.patch
@@ -0,0 +1,23 @@
+From fa40b874f6470ec11a8fd7b0c9909d0cdd2d6feb Mon Sep 17 00:00:00 2001
+From: Dan Callaghan <dan.callaghan@opengear.com>
+Date: Fri, 5 Feb 2021 08:56:34 +1000
+Subject: [PATCH] enable LTO
+
+---
+ Cargo.toml | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/Cargo.toml b/Cargo.toml
+index 7a2f6c8..cdb6b5d 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -3,3 +3,6 @@
+ name = "rust-hello-world"
+ version = "0.0.1"
+ authors = ["Cody P Schafer <dev@codyps.com>"]
++
++[profile.release]
++lto = true
+-- 
+2.28.0
+
diff --git a/meta/recipes-example/rust-hello-world/rust-hello-world_git.bb b/meta/recipes-example/rust-hello-world/rust-hello-world_git.bb
new file mode 100644
index 0000000000..c29eac34e5
--- /dev/null
+++ b/meta/recipes-example/rust-hello-world/rust-hello-world_git.bb
@@ -0,0 +1,17 @@
+inherit cargo
+
+SRC_URI = "git://github.com/meta-rust/rust-hello-world.git;protocol=https"
+SRCREV="e0fa23f1a3cb1eb1407165bd2fc36d2f6e6ad728"
+LIC_FILES_CHKSUM="file://COPYRIGHT;md5=e6b2207ac3740d2d01141c49208c2147"
+
+SRC_URI += "\
+    file://0001-enable-LTO.patch \
+    "
+
+SUMMARY = "Hello World by Cargo for Rust"
+HOMEPAGE = "https://github.com/meta-rust/rust-hello-world"
+LICENSE = "MIT | Apache-2.0"
+
+S = "${WORKDIR}/git"
+
+BBCLASSEXTEND = "native"
diff --git a/meta/recipes-example/rustfmt/rustfmt_1.4.2.bb b/meta/recipes-example/rustfmt/rustfmt_1.4.2.bb
new file mode 100644
index 0000000000..ecced49049
--- /dev/null
+++ b/meta/recipes-example/rustfmt/rustfmt_1.4.2.bb
@@ -0,0 +1,171 @@
+# Auto-Generated by cargo-bitbake 0.3.13
+#
+inherit cargo
+
+# If this is git based prefer versioned ones if they exist
+# DEFAULT_PREFERENCE = "-1"
+
+# how to get rustfmt-nightly could be as easy as but default to a git checkout:
+# SRC_URI += "crate://crates.io/rustfmt-nightly/1.4.2"
+SRC_URI += "git://github.com/rust-lang/rustfmt/;protocol=https;nobranch=1"
+SRCREV = "aeb3496f31a0dfa90fc511520d2023634e885260"
+S = "${WORKDIR}/git"
+CARGO_SRC_DIR = ""
+
+
+# please note if you have entries that do not begin with crate://
+# you must change them to how that package can be fetched
+SRC_URI += " \
+    crate://crates.io/aho-corasick/0.7.4 \
+    crate://crates.io/annotate-snippets/0.6.1 \
+    crate://crates.io/ansi_term/0.11.0 \
+    crate://crates.io/argon2rs/0.2.5 \
+    crate://crates.io/arrayvec/0.4.11 \
+    crate://crates.io/atty/0.2.13 \
+    crate://crates.io/autocfg/0.1.5 \
+    crate://crates.io/backtrace-sys/0.1.31 \
+    crate://crates.io/backtrace/0.3.33 \
+    crate://crates.io/bitflags/1.1.0 \
+    crate://crates.io/blake2-rfc/0.2.18 \
+    crate://crates.io/bstr/0.2.6 \
+    crate://crates.io/bytecount/0.5.1 \
+    crate://crates.io/byteorder/1.3.2 \
+    crate://crates.io/c2-chacha/0.2.2 \
+    crate://crates.io/cargo_metadata/0.8.1 \
+    crate://crates.io/cc/1.0.38 \
+    crate://crates.io/cfg-if/0.1.9 \
+    crate://crates.io/clap/2.33.0 \
+    crate://crates.io/cloudabi/0.0.3 \
+    crate://crates.io/constant_time_eq/0.1.3 \
+    crate://crates.io/crossbeam-channel/0.3.9 \
+    crate://crates.io/crossbeam-deque/0.2.0 \
+    crate://crates.io/crossbeam-epoch/0.3.1 \
+    crate://crates.io/crossbeam-utils/0.2.2 \
+    crate://crates.io/crossbeam-utils/0.6.6 \
+    crate://crates.io/derive-new/0.5.7 \
+    crate://crates.io/diff/0.1.11 \
+    crate://crates.io/dirs-sys/0.3.3 \
+    crate://crates.io/dirs/2.0.1 \
+    crate://crates.io/either/1.5.2 \
+    crate://crates.io/ena/0.13.0 \
+    crate://crates.io/env_logger/0.6.2 \
+    crate://crates.io/failure/0.1.5 \
+    crate://crates.io/failure_derive/0.1.5 \
+    crate://crates.io/fnv/1.0.6 \
+    crate://crates.io/fuchsia-cprng/0.1.1 \
+    crate://crates.io/getopts/0.2.19 \
+    crate://crates.io/getrandom/0.1.6 \
+    crate://crates.io/globset/0.4.4 \
+    crate://crates.io/heck/0.3.1 \
+    crate://crates.io/humantime/1.2.0 \
+    crate://crates.io/ignore/0.4.8 \
+    crate://crates.io/indexmap/1.0.2 \
+    crate://crates.io/itertools/0.8.0 \
+    crate://crates.io/itoa/0.4.4 \
+    crate://crates.io/jobserver/0.1.16 \
+    crate://crates.io/lazy_static/1.3.0 \
+    crate://crates.io/libc/0.2.60 \
+    crate://crates.io/lock_api/0.1.5 \
+    crate://crates.io/log/0.4.7 \
+    crate://crates.io/memchr/2.2.1 \
+    crate://crates.io/memoffset/0.2.1 \
+    crate://crates.io/nodrop/0.1.13 \
+    crate://crates.io/num_cpus/1.10.1 \
+    crate://crates.io/owning_ref/0.4.0 \
+    crate://crates.io/packed_simd/0.3.3 \
+    crate://crates.io/parking_lot/0.7.1 \
+    crate://crates.io/parking_lot_core/0.4.0 \
+    crate://crates.io/ppv-lite86/0.2.5 \
+    crate://crates.io/proc-macro2/0.4.30 \
+    crate://crates.io/quick-error/1.2.2 \
+    crate://crates.io/quote/0.6.13 \
+    crate://crates.io/rand/0.6.5 \
+    crate://crates.io/rand/0.7.0 \
+    crate://crates.io/rand_chacha/0.1.1 \
+    crate://crates.io/rand_chacha/0.2.1 \
+    crate://crates.io/rand_core/0.3.1 \
+    crate://crates.io/rand_core/0.4.0 \
+    crate://crates.io/rand_core/0.5.0 \
+    crate://crates.io/rand_hc/0.1.0 \
+    crate://crates.io/rand_hc/0.2.0 \
+    crate://crates.io/rand_isaac/0.1.1 \
+    crate://crates.io/rand_jitter/0.1.4 \
+    crate://crates.io/rand_os/0.1.3 \
+    crate://crates.io/rand_pcg/0.1.2 \
+    crate://crates.io/rand_xorshift/0.1.1 \
+    crate://crates.io/rdrand/0.4.0 \
+    crate://crates.io/redox_syscall/0.1.56 \
+    crate://crates.io/redox_users/0.3.0 \
+    crate://crates.io/regex-syntax/0.6.10 \
+    crate://crates.io/regex/1.2.0 \
+    crate://crates.io/rustc-ap-arena/542.0.0 \
+    crate://crates.io/rustc-ap-graphviz/542.0.0 \
+    crate://crates.io/rustc-ap-rustc_data_structures/542.0.0 \
+    crate://crates.io/rustc-ap-rustc_errors/542.0.0 \
+    crate://crates.io/rustc-ap-rustc_lexer/542.0.0 \
+    crate://crates.io/rustc-ap-rustc_macros/542.0.0 \
+    crate://crates.io/rustc-ap-rustc_target/542.0.0 \
+    crate://crates.io/rustc-ap-serialize/542.0.0 \
+    crate://crates.io/rustc-ap-syntax/542.0.0 \
+    crate://crates.io/rustc-ap-syntax_pos/542.0.0 \
+    crate://crates.io/rustc-demangle/0.1.15 \
+    crate://crates.io/rustc-hash/1.0.1 \
+    crate://crates.io/rustc-rayon-core/0.2.0 \
+    crate://crates.io/rustc-rayon/0.2.0 \
+    crate://crates.io/rustc-workspace-hack/1.0.0 \
+    crate://crates.io/rustc_version/0.2.3 \
+    crate://crates.io/ryu/1.0.0 \
+    crate://crates.io/same-file/1.0.5 \
+    crate://crates.io/scoped-tls/1.0.0 \
+    crate://crates.io/scoped_threadpool/0.1.9 \
+    crate://crates.io/scopeguard/0.3.3 \
+    crate://crates.io/semver-parser/0.7.0 \
+    crate://crates.io/semver/0.9.0 \
+    crate://crates.io/serde/1.0.97 \
+    crate://crates.io/serde_derive/1.0.97 \
+    crate://crates.io/serde_json/1.0.40 \
+    crate://crates.io/smallvec/0.6.10 \
+    crate://crates.io/spin/0.5.0 \
+    crate://crates.io/stable_deref_trait/1.1.1 \
+    crate://crates.io/strsim/0.8.0 \
+    crate://crates.io/structopt-derive/0.2.18 \
+    crate://crates.io/structopt/0.2.18 \
+    crate://crates.io/syn/0.15.42 \
+    crate://crates.io/synstructure/0.10.2 \
+    crate://crates.io/term/0.6.0 \
+    crate://crates.io/termcolor/1.0.5 \
+    crate://crates.io/textwrap/0.11.0 \
+    crate://crates.io/thread_local/0.3.6 \
+    crate://crates.io/toml/0.5.1 \
+    crate://crates.io/ucd-util/0.1.5 \
+    crate://crates.io/unicode-segmentation/1.3.0 \
+    crate://crates.io/unicode-width/0.1.5 \
+    crate://crates.io/unicode-xid/0.1.0 \
+    crate://crates.io/unicode_categories/0.1.1 \
+    crate://crates.io/utf8-ranges/1.0.3 \
+    crate://crates.io/vec_map/0.8.1 \
+    crate://crates.io/walkdir/2.2.9 \
+    crate://crates.io/winapi-i686-pc-windows-gnu/0.4.0 \
+    crate://crates.io/winapi-util/0.1.2 \
+    crate://crates.io/winapi-x86_64-pc-windows-gnu/0.4.0 \
+    crate://crates.io/winapi/0.3.7 \
+    crate://crates.io/wincolor/1.0.1 \
+"
+
+
+
+# FIXME: update generateme with the real MD5 of the license file
+LIC_FILES_CHKSUM = " \
+    file://LICENSE-APACHE;md5=1836efb2eb779966696f473ee8540542 \
+    file://LICENSE-MIT;md5=0b29d505d9225d1f0815cbdcf602b901 \
+"
+
+SUMMARY = "Tool to find and fix Rust formatting issues"
+HOMEPAGE = "https://github.com/rust-lang/rustfmt"
+LICENSE = "Apache-2.0 | MIT"
+
+# includes this file if it exists but does not fail
+# this is useful for anything you may want to override from
+# what cargo-bitbake generates.
+include rustfmt-nightly-${PV}.inc
+include rustfmt-nightly.inc