https://github.com/marxin created https://github.com/llvm/llvm-project/pull/213878
Right now, the option is not passed to the wasm-ld. From 79177e78b6170a8d6cb81d087b757c5d136622ef Mon Sep 17 00:00:00 2001 From: Martin Liska <[email protected]> Date: Tue, 4 Aug 2026 10:51:29 +0200 Subject: [PATCH] [WebAssembly] fix: respect -Wl,--no-demangle option Right now, the option is not passed to the wasm-ld. --- clang/lib/Driver/ToolChains/WebAssembly.cpp | 3 +++ clang/test/Driver/wasm-toolchain.c | 4 ++++ 2 files changed, 7 insertions(+) diff --git a/clang/lib/Driver/ToolChains/WebAssembly.cpp b/clang/lib/Driver/ToolChains/WebAssembly.cpp index 7dabefbee7f79..2e8afb163b30a 100644 --- a/clang/lib/Driver/ToolChains/WebAssembly.cpp +++ b/clang/lib/Driver/ToolChains/WebAssembly.cpp @@ -121,6 +121,9 @@ void wasm::Linker::ConstructJob(Compilation &C, const JobAction &JA, if (Args.hasArg(options::OPT_s)) CmdArgs.push_back("--strip-all"); + if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) + CmdArgs.push_back("--no-demangle"); + // On `wasip2` the default linker is `wasm-component-ld` which wraps the // execution of `wasm-ld`. Find `wasm-ld` and pass it as an argument of where // to find it to avoid it needing to hunt and rediscover or search `PATH` for diff --git a/clang/test/Driver/wasm-toolchain.c b/clang/test/Driver/wasm-toolchain.c index c02a102fab081..467d79e57aff1 100644 --- a/clang/test/Driver/wasm-toolchain.c +++ b/clang/test/Driver/wasm-toolchain.c @@ -19,6 +19,10 @@ // LINK: "-cc1" {{.*}} "-o" "[[temp:[^"]*]]" // LINK: wasm-ld{{.*}}" "-L/foo/lib" "crt1.o" "[[temp]]" "-lc" "{{.*[/\\]}}libclang_rt.builtins.a" "-o" "a.out" +// RUN: %clang -### --target=wasm32-unknown-unknown --sysroot=/foo %s -Wl,--no-demangle 2>&1 \ +// RUN: | FileCheck -check-prefix=LINK_NO_DEMANGLE %s +// LINK_NO_DEMANGLE: wasm-ld{{.*}}"--no-demangle" + // A basic C link command-line with optimization with unknown OS. // RUN: %clang -### -O2 --target=wasm32-unknown-unknown --sysroot=/foo %s 2>&1 \ _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
