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Diffstat (limited to 'meta/classes-recipe/rust-common.bbclass')
| -rw-r--r-- | meta/classes-recipe/rust-common.bbclass | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/meta/classes-recipe/rust-common.bbclass b/meta/classes-recipe/rust-common.bbclass deleted file mode 100644 index 31331c7a26..0000000000 --- a/meta/classes-recipe/rust-common.bbclass +++ /dev/null | |||
| @@ -1,196 +0,0 @@ | |||
| 1 | # | ||
| 2 | # Copyright OpenEmbedded Contributors | ||
| 3 | # | ||
| 4 | # SPDX-License-Identifier: MIT | ||
| 5 | # | ||
| 6 | |||
| 7 | inherit python3native | ||
| 8 | inherit rust-target-config | ||
| 9 | |||
| 10 | # Common variables used by all Rust builds | ||
| 11 | export rustlibdir = "${libdir}/rustlib/${RUST_HOST_SYS}/lib" | ||
| 12 | FILES:${PN} += "${rustlibdir}/*.so" | ||
| 13 | FILES:${PN}-dev += "${rustlibdir}/*.rlib ${rustlibdir}/*.rmeta" | ||
| 14 | FILES:${PN}-dbg += "${rustlibdir}/.debug" | ||
| 15 | |||
| 16 | RUSTLIB ?= "-L ${STAGING_DIR_HOST}${rustlibdir}" | ||
| 17 | RUST_DEBUG_REMAP = "--remap-path-prefix=${WORKDIR}=${TARGET_DBGSRC_DIR}" | ||
| 18 | RUSTFLAGS += "${RUSTLIB} ${RUST_DEBUG_REMAP}" | ||
| 19 | RUSTLIB_DEP ??= "libstd-rs" | ||
| 20 | RUST_PANIC_STRATEGY ??= "unwind" | ||
| 21 | |||
| 22 | def target_is_armv7(d): | ||
| 23 | '''Determine if target is armv7''' | ||
| 24 | # TUNE_FEATURES may include arm* even if the target is not arm | ||
| 25 | # in the case of *-native packages | ||
| 26 | if d.getVar('TARGET_ARCH') != 'arm': | ||
| 27 | return False | ||
| 28 | |||
| 29 | feat = d.getVar('TUNE_FEATURES') | ||
| 30 | feat = frozenset(feat.split()) | ||
| 31 | mach_overrides = d.getVar('MACHINEOVERRIDES') | ||
| 32 | mach_overrides = frozenset(mach_overrides.split(':')) | ||
| 33 | |||
| 34 | v7=frozenset(['armv7a', 'armv7r', 'armv7m', 'armv7ve']) | ||
| 35 | if mach_overrides.isdisjoint(v7) and feat.isdisjoint(v7): | ||
| 36 | return False | ||
| 37 | else: | ||
| 38 | return True | ||
| 39 | target_is_armv7[vardepvalue] = "${@target_is_armv7(d)}" | ||
| 40 | |||
| 41 | # Responsible for taking Yocto triples and converting it to Rust triples | ||
| 42 | def rust_base_triple(d, thing): | ||
| 43 | ''' | ||
| 44 | Mangle bitbake's *_SYS into something that rust might support (see | ||
| 45 | rust/mk/cfg/* for a list) | ||
| 46 | |||
| 47 | Note that os is assumed to be some linux form | ||
| 48 | ''' | ||
| 49 | |||
| 50 | # The llvm-target for armv7 is armv7-unknown-linux-gnueabihf | ||
| 51 | if d.getVar('{}_ARCH'.format(thing)) == d.getVar('TARGET_ARCH') and target_is_armv7(d): | ||
| 52 | arch = "armv7" | ||
| 53 | else: | ||
| 54 | arch = oe.rust.arch_to_rust_arch(d.getVar('{}_ARCH'.format(thing))) | ||
| 55 | |||
| 56 | # Substituting "unknown" when vendor is empty will match rust's standard | ||
| 57 | # targets when building native recipes (including rust-native itself) | ||
| 58 | vendor = d.getVar('{}_VENDOR'.format(thing)) or "-unknown" | ||
| 59 | |||
| 60 | # Default to glibc | ||
| 61 | libc = "-gnu" | ||
| 62 | os = d.getVar('{}_OS'.format(thing)) | ||
| 63 | # This catches ARM targets and appends the necessary hard float bits | ||
| 64 | if os == "linux-gnueabi" or os == "linux-musleabi": | ||
| 65 | libc = bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', 'hf', '', d) | ||
| 66 | elif os == "linux-gnux32" or os == "linux-muslx32": | ||
| 67 | libc = "" | ||
| 68 | elif "musl" in os: | ||
| 69 | libc = "-musl" | ||
| 70 | os = "linux" | ||
| 71 | elif "elf" in os: | ||
| 72 | libc = "-elf" | ||
| 73 | os = "none" | ||
| 74 | elif "eabi" in os: | ||
| 75 | libc = "-eabi" | ||
| 76 | os = "none" | ||
| 77 | |||
| 78 | return arch + vendor + '-' + os + libc | ||
| 79 | |||
| 80 | |||
| 81 | # In some cases uname and the toolchain differ on their idea of the arch name | ||
| 82 | RUST_BUILD_ARCH = "${@oe.rust.arch_to_rust_arch(d.getVar('BUILD_ARCH'))}" | ||
| 83 | |||
| 84 | # Naming explanation | ||
| 85 | # Yocto | ||
| 86 | # - BUILD_SYS - Yocto triple of the build environment | ||
| 87 | # - HOST_SYS - What we're building for in Yocto | ||
| 88 | # - TARGET_SYS - What we're building for in Yocto | ||
| 89 | # | ||
| 90 | # So when building '-native' packages BUILD_SYS == HOST_SYS == TARGET_SYS | ||
| 91 | # When building packages for the image HOST_SYS == TARGET_SYS | ||
| 92 | # This is a gross over simplification as there are other modes but | ||
| 93 | # currently this is all that's supported. | ||
| 94 | # | ||
| 95 | # Rust | ||
| 96 | # - TARGET - the system where the binary will run | ||
| 97 | # - HOST - the system where the binary is being built | ||
| 98 | # | ||
| 99 | # Rust additionally will use two additional cases: | ||
| 100 | # - undecorated (e.g. CC) - equivalent to TARGET | ||
| 101 | # - triple suffix (e.g. CC:x86_64_unknown_linux_gnu) - both | ||
| 102 | # see: https://github.com/rust-lang/cc-rs | ||
| 103 | # The way that Rust's internal triples and Yocto triples are mapped together | ||
| 104 | # its likely best to not use the triple suffix due to potential confusion. | ||
| 105 | |||
| 106 | RUST_BUILD_SYS = "${@rust_base_triple(d, 'BUILD')}" | ||
| 107 | RUST_BUILD_SYS[vardepvalue] = "${RUST_BUILD_SYS}" | ||
| 108 | RUST_HOST_SYS = "${@rust_base_triple(d, 'HOST')}" | ||
| 109 | RUST_HOST_SYS[vardepvalue] = "${RUST_HOST_SYS}" | ||
| 110 | RUST_TARGET_SYS = "${@rust_base_triple(d, 'TARGET')}" | ||
| 111 | RUST_TARGET_SYS[vardepvalue] = "${RUST_TARGET_SYS}" | ||
| 112 | |||
| 113 | # wrappers to get around the fact that Rust needs a single | ||
| 114 | # binary but Yocto's compiler and linker commands have | ||
| 115 | # arguments. Technically the archiver is always one command but | ||
| 116 | # this is necessary for builds that determine the prefix and then | ||
| 117 | # use those commands based on the prefix. | ||
| 118 | WRAPPER_DIR = "${WORKDIR}/wrapper" | ||
| 119 | RUST_BUILD_CC = "${WRAPPER_DIR}/build-rust-cc" | ||
| 120 | RUST_BUILD_CXX = "${WRAPPER_DIR}/build-rust-cxx" | ||
| 121 | RUST_BUILD_CCLD = "${WRAPPER_DIR}/build-rust-ccld" | ||
| 122 | RUST_BUILD_AR = "${WRAPPER_DIR}/build-rust-ar" | ||
| 123 | RUST_TARGET_CC = "${WRAPPER_DIR}/target-rust-cc" | ||
| 124 | RUST_TARGET_CXX = "${WRAPPER_DIR}/target-rust-cxx" | ||
| 125 | RUST_TARGET_CCLD = "${WRAPPER_DIR}/target-rust-ccld" | ||
| 126 | RUST_TARGET_AR = "${WRAPPER_DIR}/target-rust-ar" | ||
| 127 | |||
| 128 | create_wrapper_rust () { | ||
| 129 | file="$1" | ||
| 130 | shift | ||
| 131 | extras="$1" | ||
| 132 | shift | ||
| 133 | crate_cc_extras="$1" | ||
| 134 | shift | ||
| 135 | |||
| 136 | cat <<- EOF > "${file}" | ||
| 137 | #!/usr/bin/env python3 | ||
| 138 | import os, sys | ||
| 139 | orig_binary = "$@" | ||
| 140 | extras = "${extras}" | ||
| 141 | |||
| 142 | # Apply a required subset of CC crate compiler flags | ||
| 143 | # when we build a target recipe for a non-bare-metal target. | ||
| 144 | # https://github.com/rust-lang/cc-rs/blob/main/src/lib.rs#L1614 | ||
| 145 | if "CRATE_CC_NO_DEFAULTS" in os.environ.keys() and \ | ||
| 146 | "TARGET" in os.environ.keys() and not "-none-" in os.environ["TARGET"]: | ||
| 147 | orig_binary += "${crate_cc_extras}" | ||
| 148 | |||
| 149 | binary = orig_binary.split()[0] | ||
| 150 | args = orig_binary.split() + sys.argv[1:] | ||
| 151 | if extras: | ||
| 152 | args.append(extras) | ||
| 153 | os.execvp(binary, args) | ||
| 154 | EOF | ||
| 155 | chmod +x "${file}" | ||
| 156 | } | ||
| 157 | |||
| 158 | WRAPPER_TARGET_CC = "${CC}" | ||
| 159 | WRAPPER_TARGET_CXX = "${CXX}" | ||
| 160 | WRAPPER_TARGET_CCLD = "${CCLD}" | ||
| 161 | WRAPPER_TARGET_LDFLAGS = "${LDFLAGS}" | ||
| 162 | WRAPPER_TARGET_EXTRALD = "" | ||
| 163 | # see recipes-devtools/gcc/gcc/0018-Add-ssp_nonshared-to-link-commandline-for-musl-targe.patch | ||
| 164 | # we need to link with ssp_nonshared on musl to avoid "undefined reference to `__stack_chk_fail_local'" | ||
| 165 | # when building MACHINE=qemux86 for musl | ||
| 166 | WRAPPER_TARGET_EXTRALD:libc-musl = "-lssp_nonshared" | ||
| 167 | WRAPPER_TARGET_AR = "${AR}" | ||
| 168 | |||
| 169 | # compiler is used by gcc-rs | ||
| 170 | # linker is used by rustc/cargo | ||
| 171 | # archiver is used by the build of libstd-rs | ||
| 172 | do_rust_create_wrappers () { | ||
| 173 | mkdir -p "${WRAPPER_DIR}" | ||
| 174 | |||
| 175 | # Yocto Build / Rust Host C compiler | ||
| 176 | create_wrapper_rust "${RUST_BUILD_CC}" "" "${CRATE_CC_FLAGS}" "${BUILD_CC}" "${BUILD_LDFLAGS}" | ||
| 177 | # Yocto Build / Rust Host C++ compiler | ||
| 178 | create_wrapper_rust "${RUST_BUILD_CXX}" "" "${CRATE_CC_FLAGS}" "${BUILD_CXX}" | ||
| 179 | # Yocto Build / Rust Host linker | ||
| 180 | create_wrapper_rust "${RUST_BUILD_CCLD}" "" "" "${BUILD_CCLD}" "${BUILD_LDFLAGS}" | ||
| 181 | # Yocto Build / Rust Host archiver | ||
| 182 | create_wrapper_rust "${RUST_BUILD_AR}" "" "" "${BUILD_AR}" | ||
| 183 | |||
| 184 | # Yocto Target / Rust Target C compiler | ||
| 185 | create_wrapper_rust "${RUST_TARGET_CC}" "${WRAPPER_TARGET_EXTRALD}" "${CRATE_CC_FLAGS}" "${WRAPPER_TARGET_CC}" "${WRAPPER_TARGET_LDFLAGS}" | ||
| 186 | # Yocto Target / Rust Target C++ compiler | ||
| 187 | create_wrapper_rust "${RUST_TARGET_CXX}" "${WRAPPER_TARGET_EXTRALD}" "${CRATE_CC_FLAGS}" "${WRAPPER_TARGET_CXX}" "${CXXFLAGS}" | ||
| 188 | # Yocto Target / Rust Target linker | ||
| 189 | create_wrapper_rust "${RUST_TARGET_CCLD}" "${WRAPPER_TARGET_EXTRALD}" "" "${WRAPPER_TARGET_CCLD}" "${WRAPPER_TARGET_LDFLAGS}" | ||
| 190 | # Yocto Target / Rust Target archiver | ||
| 191 | create_wrapper_rust "${RUST_TARGET_AR}" "" "" "${WRAPPER_TARGET_AR}" | ||
| 192 | |||
| 193 | } | ||
| 194 | |||
| 195 | addtask rust_create_wrappers before do_configure after do_patch do_prepare_recipe_sysroot | ||
| 196 | do_rust_create_wrappers[dirs] += "${WRAPPER_DIR}" | ||
