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use super::{cvs, wasm_base};
use super::{LinkArgs, LinkerFlavor, PanicStrategy, Target, TargetOptions};
pub fn target() -> Target {
let mut options = wasm_base::options();
let clang_args = options.pre_link_args.entry(LinkerFlavor::Gcc).or_default();
// Rust really needs a way for users to specify exports and imports in
// the source code. --export-dynamic isn't the right tool for this job,
// however it does have the side effect of automatically exporting a lot
// of symbols, which approximates what people want when compiling for
// wasm32-unknown-unknown expect, so use it for now.
clang_args.push("--export-dynamic".into());
let mut post_link_args = LinkArgs::new();
post_link_args.insert(
LinkerFlavor::Em,
vec!["-sABORTING_MALLOC=0".into(), "-Wl,--fatal-warnings".into()],
);
let opts = TargetOptions {
os: "emscripten".into(),
linker_flavor: LinkerFlavor::Em,
// emcc emits two files - a .js file to instantiate the wasm and supply platform
// functionality, and a .wasm file.
exe_suffix: ".js".into(),
linker: None,
panic_strategy: PanicStrategy::Unwind,
no_default_libraries: false,
post_link_args,
families: cvs!["unix", "wasm"],
..options
};
Target {
llvm_target: "wasm32-unknown-emscripten".into(),
pointer_width: 32,
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(),
arch: "wasm32".into(),
options: opts,
}
}
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