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".to_string());
16 let mut post_link_args = LinkArgs::new();
17 post_link_args.insert(
21 "ERROR_ON_UNDEFINED_SYMBOLS=1".to_string(),
23 "ASSERTIONS=1".to_string(),
25 "ABORTING_MALLOC=0".to_string(),
26 "-Wl,--fatal-warnings".to_string(),
30 let opts = TargetOptions {
31 os: "emscripten".to_string(),
32 linker_flavor: LinkerFlavor::Em,
33 // emcc emits two files - a .js file to instantiate the wasm and supply platform
34 // functionality, and a .wasm file.
35 exe_suffix: ".js".to_string(),
38 is_like_emscripten: true,
39 panic_strategy: PanicStrategy::Unwind,
41 os_family: Some("unix".to_string()),
45 llvm_target: "wasm32-unknown-emscripten".to_string(),
47 data_layout: "e-m:e-p:32:32-i64:64-n32:64-S128".to_string(),
48 arch: "wasm32".to_string(),