1inherit rust 2 3RDEPENDS:${PN}:append:class-target = " ${RUSTLIB_DEP}" 4 5RUSTC_ARCHFLAGS += "-C opt-level=3 -g -L ${STAGING_DIR_HOST}/${rustlibdir} -C linker=${RUST_TARGET_CCLD}" 6EXTRA_OEMAKE += 'RUSTC_ARCHFLAGS="${RUSTC_ARCHFLAGS}"' 7 8# Some libraries alias with the standard library but libstd is configured to 9# make it difficult or imposisble to use its version. Unfortunately libstd 10# must be explicitly overridden using extern. 11OVERLAP_LIBS = "\ 12 libc \ 13 log \ 14 getopts \ 15 rand \ 16" 17def get_overlap_deps(d): 18 deps = d.getVar("DEPENDS").split() 19 overlap_deps = [] 20 for o in d.getVar("OVERLAP_LIBS").split(): 21 l = len([o for dep in deps if (o + '-rs' in dep)]) 22 if l > 0: 23 overlap_deps.append(o) 24 return " ".join(overlap_deps) 25OVERLAP_DEPS = "${@get_overlap_deps(d)}" 26 27# Prevents multiple static copies of standard library modules 28# See https://github.com/rust-lang/rust/issues/19680 29RUSTC_PREFER_DYNAMIC = "-C prefer-dynamic" 30RUSTC_FLAGS += "${RUSTC_PREFER_DYNAMIC}" 31 32CRATE_NAME ?= "${@d.getVar('BPN').replace('-rs', '').replace('-', '_')}" 33BINNAME ?= "${BPN}" 34LIBNAME ?= "lib${CRATE_NAME}-rs" 35CRATE_TYPE ?= "dylib" 36BIN_SRC ?= "${S}/src/main.rs" 37LIB_SRC ?= "${S}/src/lib.rs" 38 39rustbindest ?= "${bindir}" 40rustlibdest ?= "${rustlibdir}" 41RUST_RPATH_ABS ?= "${rustlibdir}:${rustlib}" 42 43def relative_rpaths(paths, base): 44 relpaths = set() 45 for p in paths.split(':'): 46 if p == base: 47 relpaths.add('$ORIGIN') 48 continue 49 relpaths.add(os.path.join('$ORIGIN', os.path.relpath(p, base))) 50 return '-rpath=' + ':'.join(relpaths) if len(relpaths) else '' 51 52RUST_LIB_RPATH_FLAGS ?= "${@relative_rpaths(d.getVar('RUST_RPATH_ABS', True), d.getVar('rustlibdest', True))}" 53RUST_BIN_RPATH_FLAGS ?= "${@relative_rpaths(d.getVar('RUST_RPATH_ABS', True), d.getVar('rustbindest', True))}" 54 55def libfilename(d): 56 if d.getVar('CRATE_TYPE', True) == 'dylib': 57 return d.getVar('LIBNAME', True) + '.so' 58 else: 59 return d.getVar('LIBNAME', True) + '.rlib' 60 61def link_args(d, bin): 62 linkargs = [] 63 if bin: 64 rpaths = d.getVar('RUST_BIN_RPATH_FLAGS', False) 65 else: 66 rpaths = d.getVar('RUST_LIB_RPATH_FLAGS', False) 67 if d.getVar('CRATE_TYPE', True) == 'dylib': 68 linkargs.append('-soname') 69 linkargs.append(libfilename(d)) 70 if len(rpaths): 71 linkargs.append(rpaths) 72 if len(linkargs): 73 return ' '.join(['-Wl,' + arg for arg in linkargs]) 74 else: 75 return '' 76 77get_overlap_externs () { 78 externs= 79 for dep in ${OVERLAP_DEPS}; do 80 extern=$(ls ${STAGING_DIR_HOST}/${rustlibdir}/lib$dep-rs.{so,rlib} 2>/dev/null \ 81 | awk '{print $1}'); 82 if [ -n "$extern" ]; then 83 externs="$externs --extern $dep=$extern" 84 else 85 echo "$dep in depends but no such library found in ${rustlibdir}!" >&2 86 exit 1 87 fi 88 done 89 echo "$externs" 90} 91 92do_configure () { 93} 94 95oe_runrustc () { 96 export RUST_TARGET_PATH="${RUST_TARGET_PATH}" 97 bbnote ${RUSTC} ${RUSTC_ARCHFLAGS} ${RUSTC_FLAGS} "$@" 98 "${RUSTC}" ${RUSTC_ARCHFLAGS} ${RUSTC_FLAGS} "$@" 99} 100 101oe_compile_rust_lib () { 102 rm -rf ${LIBNAME}.{rlib,so} 103 local -a link_args 104 if [ -n '${@link_args(d, False)}' ]; then 105 link_args[0]='-C' 106 link_args[1]='link-args=${@link_args(d, False)}' 107 fi 108 oe_runrustc $(get_overlap_externs) \ 109 "${link_args[@]}" \ 110 ${LIB_SRC} \ 111 -o ${@libfilename(d)} \ 112 --crate-name=${CRATE_NAME} --crate-type=${CRATE_TYPE} \ 113 "$@" 114} 115oe_compile_rust_lib[vardeps] += "get_overlap_externs" 116 117oe_compile_rust_bin () { 118 rm -rf ${BINNAME} 119 local -a link_args 120 if [ -n '${@link_args(d, True)}' ]; then 121 link_args[0]='-C' 122 link_args[1]='link-args=${@link_args(d, True)}' 123 fi 124 oe_runrustc $(get_overlap_externs) \ 125 "${link_args[@]}" \ 126 ${BIN_SRC} -o ${BINNAME} "$@" 127} 128oe_compile_rust_bin[vardeps] += "get_overlap_externs" 129 130oe_install_rust_lib () { 131 for lib in $(ls ${LIBNAME}.{so,rlib} 2>/dev/null); do 132 echo Installing $lib 133 install -D -m 755 $lib ${D}/${rustlibdest}/$lib 134 done 135} 136 137oe_install_rust_bin () { 138 echo Installing ${BINNAME} 139 install -D -m 755 ${BINNAME} ${D}/${rustbindest}/${BINNAME} 140} 141 142do_rust_bin_fixups() { 143 for f in `find ${PKGD} -name '*.so*'`; do 144 echo "Strip rust note: $f" 145 ${OBJCOPY} -R .note.rustc $f $f 146 done 147} 148PACKAGE_PREPROCESS_FUNCS += "do_rust_bin_fixups" 149 150