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Diffstat (limited to 'meta/classes/rust-common.bbclass')
-rw-r--r-- | meta/classes/rust-common.bbclass | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/meta/classes/rust-common.bbclass b/meta/classes/rust-common.bbclass deleted file mode 100644 index 02a538258a..0000000000 --- a/meta/classes/rust-common.bbclass +++ /dev/null @@ -1,186 +0,0 @@ -inherit python3native - -# 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} ${RUST_DEBUG_REMAP}" -RUSTLIB_DEP ?= "libstd-rs" -export RUST_TARGET_PATH = "${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 = "${TCLIBC}" -RUST_LIBC:class-crosssdk = "glibc" -RUST_LIBC:class-native = "glibc" - -def determine_libc(d, thing): - '''Determine which libc something should target''' - - # BUILD is never musl, TARGET may be musl or glibc, - # HOST could be musl, but only if a compiler is built to be run on - # target in which case HOST_SYS != BUILD_SYS. - if thing == 'TARGET': - libc = d.getVar('RUST_LIBC') - elif thing == 'BUILD' and (d.getVar('HOST_SYS') != d.getVar('BUILD_SYS')): - libc = d.getVar('RUST_LIBC') - else: - libc = d.getVar('RUST_LIBC:class-native') - - return libc - -def target_is_armv7(d): - '''Determine if target is armv7''' - # TUNE_FEATURES may include arm* even if the target is not arm - # in the case of *-native packages - if d.getVar('TARGET_ARCH') != 'arm': - return False - - feat = d.getVar('TUNE_FEATURES') - feat = frozenset(feat.split()) - mach_overrides = d.getVar('MACHINEOVERRIDES') - mach_overrides = frozenset(mach_overrides.split(':')) - - v7=frozenset(['armv7a', 'armv7r', 'armv7m', 'armv7ve']) - if mach_overrides.isdisjoint(v7) and feat.isdisjoint(v7): - return False - else: - return True -target_is_armv7[vardepvalue] = "${@target_is_armv7(d)}" - -# 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 = oe.rust.arch_to_rust_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 - - -# In some cases uname and the toolchain differ on their idea of the arch name -RUST_BUILD_ARCH = "${@oe.rust.arch_to_rust_arch(d.getVar('BUILD_ARCH'))}" - -# Naming explanation -# Yocto -# - BUILD_SYS - Yocto triple of the build environment -# - HOST_SYS - What we're building for in Yocto -# - TARGET_SYS - What we're building for in Yocto -# -# So when building '-native' packages BUILD_SYS == HOST_SYS == TARGET_SYS -# When building packages for the image HOST_SYS == TARGET_SYS -# This is a gross over simplification as there are other modes but -# currently this is all that's supported. -# -# Rust -# - TARGET - the system where the binary will run -# - HOST - the system where the binary is being built -# -# Rust additionally will use two additional cases: -# - undecorated (e.g. CC) - equivalent to TARGET -# - triple suffix (e.g. CC:x86_64_unknown_linux_gnu) - both -# see: https://github.com/alexcrichton/gcc-rs -# The way that Rust's internal triples and Yocto triples are mapped together -# its likely best to not use the triple suffix due to potential confusion. - -RUST_BUILD_SYS = "${@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}" - #!/usr/bin/env python3 - import os, sys - orig_binary = "$@" - binary = orig_binary.split()[0] - args = orig_binary.split() + sys.argv[1:] - os.execvp(binary, args) - EOF - chmod +x "${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}" "${WRAPPER_TARGET_CC}" "${WRAPPER_TARGET_LDFLAGS}" - # 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}" "${WRAPPER_TARGET_AR}" - -} - -addtask rust_create_wrappers before do_configure after do_patch do_prepare_recipe_sysroot -do_rust_create_wrappers[dirs] += "${WRAPPER_DIR}" |