1 use super::{cvs, wasm_base};
2 use super::{LinkArgs, LinkerFlavor, PanicStrategy, Target, TargetOptions};
4 pub fn target() -> Target {
5 let mut options = wasm_base::options();
7 let clang_args = options.pre_link_args.entry(LinkerFlavor::Gcc).or_default();
9 // Rust really needs a way for users to specify exports and imports in
10 // the source code. --export-dynamic isn't the right tool for this job,
11 // however it does have the side effect of automatically exporting a lot
12 // of symbols, which approximates what people want when compiling for
13 // wasm32-unknown-unknown expect, so use it for now.
14 clang_args.push("--export-dynamic".into());
16 let mut post_link_args = LinkArgs::new();
17 post_link_args.insert(
21 "ABORTING_MALLOC=0".into(),
22 "-Wl,--fatal-warnings".into(),
26 let opts = TargetOptions {
27 os: "emscripten".into(),
28 linker_flavor: LinkerFlavor::Em,
29 // emcc emits two files - a .js file to instantiate the wasm and supply platform
30 // functionality, and a .wasm file.
31 exe_suffix: ".js".into(),
33 is_like_emscripten: true,
34 panic_strategy: PanicStrategy::Unwind,
36 families: cvs!["unix", "wasm"],
40 llvm_target: "wasm32-unknown-emscripten".into(),
42 data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-f128:64-n32:64-S128-ni:1:10:20".into(),
43 arch: "wasm32".into(),