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Rollup merge of rust-lang#133801 - Gelbpunkt:powerpc64le-unknown-linu…
…x-musl-tier-2, r=jieyouxu,Urgau,Kobzol Promote powerpc64le-unknown-linux-musl to tier 2 with host tools MCP: rust-lang/compiler-team#803 I'm using crosstool-ng for building a toolchain because GCC 9 from `musl-toolchain.sh` has float ABI issues (?) and can't compile LLVM, and writing a crosstool-ng config for a target feels less hacky than yet another target specific shell script. I also defined a kernel version, since there wasn't one specified before. If a lower version is desired, just let me know. I also tried to match the rust configure args with the loongarch64 musl tier 2 target. The resulting compiler works fine, built with `DEPLOY=1 ./src/ci/docker/run.sh dist-powerpc64le-linux` and tested on Alpine Linux in a VM and on a bare metal POWER8 machine: ``` qemu-ppc64le:/tmp/rust-nightly-powerpc64le-unknown-linux-musl$ ash install.sh install: creating uninstall script at /usr/local/lib/rustlib/uninstall.sh install: installing component 'rustc' install: installing component 'rust-std-powerpc64le-unknown-linux-musl' install: installing component 'cargo' install: installing component 'rustfmt-preview' install: installing component 'rls-preview' install: installing component 'rust-analyzer-preview' install: installing component 'llvm-tools-preview' install: installing component 'clippy-preview' install: installing component 'miri-preview' install: installing component 'rust-analysis-powerpc64le-unknown-linux-musl' install: installing component 'llvm-bitcode-linker-preview' install: WARNING: failed to run ldconfig. this may happen when not installing as root. run with --verbose to see the error rust installed. qemu-ppc64le:~$ echo 'fn main() { println!("hello world"); }' > test.rs qemu-ppc64le:~$ rustc test.rs qemu-ppc64le:~$ ./test hello world qemu-ppc64le:~$ file test test: ELF 64-bit LSB executable, 64-bit PowerPC or cisco 7500, OpenPOWER ELF V2 ABI, version 1 (SYSV), statically linked, BuildID[sha1]=596ee6abf9add487ebc54fb71c2076fb6faea013, with debug_info, not stripped ``` try-job: dist-powerpc64le-linux
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src/ci/docker/host-x86_64/dist-powerpc64le-linux/powerpc64le-unknown-linux-musl.defconfig
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| CT_CONFIG_VERSION="4" | ||
| CT_EXPERIMENTAL=y | ||
| CT_PREFIX_DIR="/x-tools/${CT_TARGET}" | ||
| CT_USE_MIRROR=y | ||
| CT_MIRROR_BASE_URL="https://ci-mirrors.rust-lang.org/rustc" | ||
| CT_ARCH_POWERPC=y | ||
| CT_ARCH_LE=y | ||
| CT_ARCH_64=y | ||
| # CT_DEMULTILIB is not set | ||
| CT_ARCH_ARCH="powerpc64le" | ||
| CT_KERNEL_LINUX=y | ||
| CT_LINUX_V_4_19=y | ||
| CT_LIBC_MUSL=y | ||
| CT_MUSL_V_1_2_3=y | ||
| CT_CC_LANG_CXX=y | ||
| CT_GETTEXT_NEEDED=y |
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src/doc/rustc/src/platform-support/powerpc64le-unknown-linux-musl.md
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| # powerpc64le-unknown-linux-musl | ||
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| **Tier: 2** | ||
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| Target for 64-bit little endian PowerPC Linux programs using musl libc. | ||
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| ## Target maintainers | ||
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| - [@Gelbpunkt](https://github.com/Gelbpunkt) | ||
| - [@famfo](https://github.com/famfo) | ||
| - [@neuschaefer](https://github.com/neuschaefer) | ||
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| ## Requirements | ||
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| Building the target itself requires a 64-bit little endian PowerPC compiler that is supported by `cc-rs`. | ||
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| ## Building the target | ||
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| The target can be built by enabling it for a `rustc` build. | ||
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| ```toml | ||
| [build] | ||
| target = ["powerpc64le-unknown-linux-musl"] | ||
| ``` | ||
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| Make sure your C compiler is included in `$PATH`, then add it to the `config.toml`: | ||
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| ```toml | ||
| [target.powerpc64le-unknown-linux-musl] | ||
| cc = "powerpc64le-linux-musl-gcc" | ||
| cxx = "powerpc64le-linux-musl-g++" | ||
| ar = "powerpc64le-linux-musl-ar" | ||
| linker = "powerpc64le-linux-musl-gcc" | ||
| ``` | ||
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| ## Building Rust programs | ||
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| This target are distributed through `rustup`, and otherwise require no | ||
| special configuration. | ||
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| ## Cross-compilation | ||
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| This target can be cross-compiled from any host. | ||
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| ## Testing | ||
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| This target can be tested as normal with `x.py` on a 64-bit little endian | ||
| PowerPC host or via QEMU emulation. |
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