1SUMMARY = "Rust standard libaries" 2HOMEPAGE = "http://www.rust-lang.org" 3SECTION = "devel" 4LICENSE = "(MIT | Apache-2.0) & Unicode-TOU" 5LIC_FILES_CHKSUM = "file://../../COPYRIGHT;md5=c2cccf560306876da3913d79062a54b9" 6 7require rust-source.inc 8 9# The dummy crate named `sysroot` represents the standard library target. 10# 11# See fd4c81f4c19e ("Add a `sysroot` crate to represent the standard library crates") 12# https://github.com/rust-lang/rust/pull/108865/ 13S = "${RUSTSRC}/library/sysroot" 14 15RUSTLIB_DEP = "" 16inherit cargo 17 18DEPENDS:append:libc-musl = " libunwind" 19# rv32 does not have libunwind ported yet 20DEPENDS:remove:riscv32 = "libunwind" 21DEPENDS:remove:riscv64 = "libunwind" 22 23# Embed bitcode in order to allow compiling both with and without LTO 24RUSTFLAGS += "-Cembed-bitcode=yes" 25# Needed so cargo can find libbacktrace 26RUSTFLAGS += "-L ${STAGING_LIBDIR} -C link-arg=-Wl,-soname,libstd.so" 27 28CARGO_FEATURES ?= "panic-unwind backtrace" 29CARGO_BUILD_FLAGS += "--features '${CARGO_FEATURES}'" 30CARGO_VENDORING_DIRECTORY = "${RUSTSRC}/vendor" 31 32do_compile:prepend () { 33 export CARGO_TARGET_DIR="${B}" 34 # For Rust 1.13.0 and newer 35 export RUSTC_BOOTSTRAP="1" 36} 37 38do_install () { 39 mkdir -p ${D}${rustlibdir} 40 41 # With the incremental build support added in 1.24, the libstd deps directory also includes dependency 42 # files that get installed. Those are really only needed to incrementally rebuild the libstd library 43 # itself and don't need to be installed. 44 rm -f ${B}/${RUST_TARGET_SYS}/${BUILD_DIR}/deps/*.d 45 cp ${B}/${RUST_TARGET_SYS}/${BUILD_DIR}/deps/* ${D}${rustlibdir} 46} 47 48BBCLASSEXTEND = "nativesdk" 49 50# Since 1.70.0 upgrade this fails to build with gold: 51# http://errors.yoctoproject.org/Errors/Details/708194/ 52# ld: error: version script assignment of to symbol __rust_alloc_error_handler_should_panic failed: symbol not defined 53LDFLAGS:append = "${@bb.utils.contains('DISTRO_FEATURES', 'ld-is-gold', ' -fuse-ld=bfd', '', d)}" 54