compiler_rt duplicate symbol when statically linking #5320
Description
Hi.
I'm trying to cross compile a crate in Rust using Zig (0.6.0+e79d7e0de) as a C compiler but I keep getting the error below.
I'm on WSL Ubuntu 18.04 trying to cross compile to aarch64-linux-musl.
Any thoughts?
error: linking with `zigg` failed: exit code: 1
|
= note: "zigg" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-Wl,--eh-frame-hdr" "-nostdlib" "/home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/crt1.o" "/home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/crti.o" "-L" "/home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib" "/mnt/d/Users/mizu/project/target/aarch64-unknown-linux-musl/release/deps/project-46dfb886f8739374.project.3leaiexz-cgu.0.rcgu.o" "-o" "/mnt/d/Users/mizu/project/target/aarch64-unknown-linux-musl/release/deps/project-46dfb886f8739374" "-Wl,--gc-sections" "-no-pie" "-Wl,-zrelro" "-Wl,-znow" "-Wl,-O1" "-nodefaultlibs" "-L" "/mnt/d/Users/mizu/project/target/aarch64-unknown-linux-musl/release/deps" "-L" "/mnt/d/Users/mizu/project/target/release/deps" "-L" "/mnt/d/Users/mizu/project/target/aarch64-unknown-linux-musl/release/build/backtrace-sys-8ccc9707fc1f8b25/out" "-L" "/mnt/d/Users/mizu/project/target/aarch64-unknown-linux-musl/release/build/libz-sys-c6b81db4d3172bde/out/build" "-L" "/home/mizu/source/openssl/aarch64-linux-musl/lib" "-L" "/mnt/d/Users/mizu/project/target/aarch64-unknown-linux-musl/release/build/ring-31232a853800cfaa/out" "-L" "/home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib" "-Wl,-Bstatic" "/tmp/rustcERnQRF/libopenssl_sys-0d899a1ca06d34db.rlib" "/tmp/rustcERnQRF/libbacktrace_sys-c46504543db0e47d.rlib" "/tmp/rustcERnQRF/liblibz_sys-4d45f07d5a71592d.rlib" "/tmp/rustcERnQRF/libring-fb104b3759fbb556.rlib" "-Wl,--start-group" "/tmp/rustcERnQRF/libbacktrace_sys-46271f041dd5b308.rlib" "/tmp/rustcERnQRF/libunwind-476b15d30ed96b76.rlib" "/tmp/rustcERnQRF/liblibc-cf2ebd1a477362df.rlib" "-Wl,--end-group" "/home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/libcompiler_builtins-7a1d3fa1614309d1.rlib" "-static" "-s" "-Wl,-Bdynamic" "/home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/crtn.o"
= note: warning: unsupported linker arg: --as-needed
warning: unsupported linker arg: -z noexecstack
warning: unsupported linker arg: --eh-frame-hdr
warning: unsupported linker arg: -zrelro
warning: unsupported linker arg: -znow
warning: unsupported linker arg: -Bstatic
warning: unsupported linker arg: --start-group
warning: unsupported linker arg: --end-group
warning: unsupported linker arg: -Bdynamic
lld: error: duplicate symbol: __cmptf2
>>> defined at comparetf2.c:45 (/checkout/src/llvm-project/compiler-rt/lib/builtins/comparetf2.c:45)
>>> comparetf2.o:(__letf2) in archive /home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/libcompiler_builtins-7a1d3fa1614309d1.rlib
>>> defined at compiler_rt
>>> /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/compiler_rt.o:(.text.__letf2+0x0) in archive /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/libcompiler_rt.a
lld: error: duplicate symbol: __eqtf2
>>> defined at comparetf2.c:45 (/checkout/src/llvm-project/compiler-rt/lib/builtins/comparetf2.c:45)
>>> comparetf2.o:(__letf2) in archive /home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/libcompiler_builtins-7a1d3fa1614309d1.rlib
>>> defined at compiler_rt
>>> /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/compiler_rt.o:(.text.__letf2+0x0) in archive /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/libcompiler_rt.a
lld: error: duplicate symbol: __gttf2
>>> defined at comparetf2.c:98 (/checkout/src/llvm-project/compiler-rt/lib/builtins/comparetf2.c:98)
>>> comparetf2.o:(__getf2) in archive /home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/libcompiler_builtins-7a1d3fa1614309d1.rlib
>>> defined at compiler_rt
>>> /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/compiler_rt.o:(.text.__getf2+0x0) in archive /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/libcompiler_rt.a
lld: error: duplicate symbol: __lttf2
>>> defined at comparetf2.c:45 (/checkout/src/llvm-project/compiler-rt/lib/builtins/comparetf2.c:45)
>>> comparetf2.o:(__letf2) in archive /home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/libcompiler_builtins-7a1d3fa1614309d1.rlib
>>> defined at compiler_rt
>>> /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/compiler_rt.o:(.text.__letf2+0x0) in archive /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/libcompiler_rt.a
lld: error: duplicate symbol: __netf2
>>> defined at comparetf2.c:45 (/checkout/src/llvm-project/compiler-rt/lib/builtins/comparetf2.c:45)
>>> comparetf2.o:(__letf2) in archive /home/mizu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-musl/lib/libcompiler_builtins-7a1d3fa1614309d1.rlib
>>> defined at compiler_rt
>>> /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/compiler_rt.o:(.text.__letf2+0x0) in archive /home/mizu/.cache/zig/stage1/o/4YQazyYIi0oVIjBMqsZOnjaQFSQt0iHstjiK6fd6YYnCHJOgr7q533xflYlL1UlQ/libcompiler_rt.a
(
ziggis just shell script that invokeszig cc -target aarch64-linux-muslsince Rust appends the linker arguments rather than prepend)
$ rustup show
nightly-x86_64-unknown-linux-gnu (default)
rustc 1.45.0-nightly (bad3bf622 2020-05-09)
clang/llvm 10
gcc 10
cmake 3.10.2