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Remove --fatal-warnings on wasm targets

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These were added with good intentions, but a recent change in LLVM 18
emits a warning while examining .rmeta sections in .rlib files. Since
this flag is a nice-to-have and users can update their LLVM linker
independently of rustc's LLVM version, we can just omit the flag.
This commit is contained in:
David Koloski 2024-01-23 19:10:17 +00:00
parent 6265a95b37
commit 849d884141
2 changed files with 1 additions and 7 deletions
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3
compiler/rustc_target/src/spec/base/wasm.rs
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@ -38,9 +38,6 @@ macro_rules! args {
// supposed to be imported and have all other symbols generate errors if
// they remain undefined.
concat!($prefix, "--allow-undefined"),
// Rust code should never have warnings, and warnings are often
// indicative of bugs, let's prevent them.
concat!($prefix, "--fatal-warnings"),
// LLD only implements C++-like demangling, which doesn't match our own
// mangling scheme. Tell LLD to not demangle anything and leave it up to
// us to demangle these symbols later. Currently rustc does not perform

5
compiler/rustc_target/src/spec/targets/wasm32_unknown_emscripten.rs
View File

@ -5,10 +5,7 @@
pub fn target() -> Target {
// Reset flags for non-Em flavors back to empty to satisfy sanity checking tests.
let pre_link_args = LinkArgs::new();
let post_link_args = TargetOptions::link_args(
LinkerFlavor::EmCc,
&["-sABORTING_MALLOC=0", "-Wl,--fatal-warnings"],
);
let post_link_args = TargetOptions::link_args(LinkerFlavor::EmCc, &["-sABORTING_MALLOC=0"]);
let opts = TargetOptions {
os: "emscripten".into(),