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neither Wasm object file nor LLVM bitcode from all wasm cdylib builds #136109

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kpreid opened this issue Jan 26, 2025 · 6 comments
Closed

neither Wasm object file nor LLVM bitcode from all wasm cdylib builds #136109

kpreid opened this issue Jan 26, 2025 · 6 comments
Labels
A-linkers Area: linkers... you gotta love linkers C-bug Category: This is a bug. O-apple Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS) O-wasm Target: WASM (WebAssembly), http://webassembly.org/ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@kpreid
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kpreid commented Jan 26, 2025

Build a cdylib for wasm32-unknown-unknown using nightly-2025-01-26 (rustc 1.86.0-nightly (f7cc13af8 2025-01-25)) — no Rust code needed in the library:

[package]
name = "foo"
version = "0.1.0"
edition = "2021"

[lib]
crate-type = ["cdylib"]

This produces these warnings:

warning: linker stderr: rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-absvdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-absvsi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-absvti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-addvdi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-addvsi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-addvti3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-cmpdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-cmpti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-divdc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-divsc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-ffsti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-int_util.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-muldc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulsc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulvdi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulvsi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulvti3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negdf2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negsf2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negvdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negvsi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negvti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-paritydi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-paritysi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-parityti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-popcountdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-popcountsi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-popcountti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-subvdi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-subvsi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-subvti3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-ucmpdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /Users/kpreid/.rustup/toolchains/nightly-2025-01-26-aarch64-apple-darwin/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-ucmpti2.o' is neither Wasm object file nor LLVM bitcode
  |
  = note: `#[warn(linker_messages)]` on by default

nightly-2025-01-25 and earlier does not produce these warnings, presumably because they are new in #119286. Built cdylibs still function as intended, but I don't know whether any of my code would be attempting to use the code mentioned in the warnings.

Meta

rustc --version --verbose:

rustc 1.86.0-nightly (f7cc13af8 2025-01-25)
binary: rustc
commit-hash: f7cc13af822fe68c64fec0b05aa9dd1412451f7c
commit-date: 2025-01-25
host: aarch64-apple-darwin
release: 1.86.0-nightly
LLVM version: 19.1.7
@kpreid kpreid added the C-bug Category: This is a bug. label Jan 26, 2025
@rustbot rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Jan 26, 2025
@kpreid kpreid mentioned this issue Jan 26, 2025
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@saethlin saethlin added O-apple Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS) O-wasm Target: WASM (WebAssembly), http://webassembly.org/ labels Jan 27, 2025
@saethlin
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I cannot reproduce this on Linux. So I guess this requires you to be using whatever LLD is shipped by Apple?

@jieyouxu jieyouxu added T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. A-linkers Area: linkers... you gotta love linkers labels Jan 27, 2025
@saethlin saethlin removed the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Jan 27, 2025
@jyn514
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jyn514 commented Jan 27, 2025

i think this is a duplicate of #132802.

@TheLostLambda
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@saethlin For what it's worth, I can reproduce this on my Linux — I get:

warning: linker stderr: rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-absvdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-absvsi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-absvti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-addvdi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-addvsi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-addvti3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-cmpdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-cmpti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-divdc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-divsc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-ffsti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-int_util.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-muldc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulsc3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulvdi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulvsi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-mulvti3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negdf2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negsf2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negvdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negvsi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-negvti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-paritydi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-paritysi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-parityti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-popcountdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-popcountsi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-popcountti2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-subvdi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-subvsi3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-subvti3.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-ucmpdi2.o' is neither Wasm object file nor LLVM bitcode
         rust-lld: /home/tll/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-cef32f9876d137b7.rlib: archive member '45c91108d938afe8-ucmpti2.o' is neither Wasm object file nor LLVM bitcode
  |
  = note: `#[warn(linker_messages)]` on by default

So it doesn't seem to just be a macOS issue

@saethlin
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Ah! This does not happen with -Zbuild-std which is what I was trying to use. I think this comes from the optimized-compiler-builtins setting?

@jyn514
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jyn514 commented Jan 27, 2025

@saethlin i urge you to read through #132802, it has a lot more info

@saethlin
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Right. This issue has less information, and you pointed out above that this is a duplicate.

@saethlin saethlin mentioned this issue Jan 28, 2025
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A-linkers Area: linkers... you gotta love linkers C-bug Category: This is a bug. O-apple Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS) O-wasm Target: WASM (WebAssembly), http://webassembly.org/ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@kpreid @TheLostLambda @saethlin @jyn514 @jieyouxu @rustbot