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-rw-r--r--meta/classes/rust-common.bbclass186
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}"