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authorAlex Crichton <alex@alexcrichton.com>2018-09-15 09:15:48 -0700
committerAlex Crichton <alex@alexcrichton.com>2018-09-15 09:15:48 -0700
commit42652565ee7da4053b24ec8cd1e31c0c30ac8174 (patch)
tree0b2624dfafda25cf5a6b149343ceec3890937680
parent052d24e6c827577dadac28fb2b782dbe5445eab7 (diff)
downloadrust-42652565ee7da4053b24ec8cd1e31c0c30ac8174.tar.gz
rust-42652565ee7da4053b24ec8cd1e31c0c30ac8174.zip
Enable fatal warnings for the wasm32 linker
Historically LLD has emitted warnings for various reasons but all the bugs have
since been fixed (yay!) and by enabling fatal warnings we should be able to head
off bugs like #53390 sooner.
-rw-r--r--src/librustc_codegen_llvm/back/linker.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/librustc_codegen_llvm/back/linker.rs b/src/librustc_codegen_llvm/back/linker.rs
index 95be2d82123..c03180c02fe 100644
--- a/src/librustc_codegen_llvm/back/linker.rs
+++ b/src/librustc_codegen_llvm/back/linker.rs
@@ -1071,6 +1071,10 @@ impl<'a> Linker for WasmLd<'a> {
         // Make the default table accessible
         self.cmd.arg("--export-table");
 
+        // Rust code should never have warnings, and warnings are often
+        // indicative of bugs, let's prevent them.
+        self.cmd.arg("--fatal-warnings");
+
         let mut cmd = Command::new("");
         ::std::mem::swap(&mut cmd, &mut self.cmd);
         cmd