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|
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"
|
