2018-11-14 03:19:23 +00:00
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use crate::webassembly::{ImportObject, ImportValue};
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2018-11-20 19:11:58 +00:00
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// EMSCRIPTEN APIS
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mod memory;
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mod process;
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mod io;
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2018-11-21 04:51:11 +00:00
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mod utils;
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2018-11-20 19:11:58 +00:00
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// SYSCALLS
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use super::host;
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2018-11-21 04:51:11 +00:00
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pub use self::utils::is_emscripten_module;
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2018-11-14 03:19:23 +00:00
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pub fn generate_emscripten_env<'a, 'b>() -> ImportObject<&'a str, &'b str> {
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let mut import_object = ImportObject::new();
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2018-11-20 19:11:58 +00:00
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import_object.set("env", "printf", ImportValue::Func(io::printf as *const u8));
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import_object.set("env", "putchar", ImportValue::Func(io::putchar as *const u8));
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2018-11-21 22:31:55 +00:00
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// import_object.set("env", "")
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2018-11-21 03:24:23 +00:00
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// // EMSCRIPTEN SYSCALLS
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2018-11-21 22:31:55 +00:00
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import_object.set("env", "_getenv", ImportValue::Func(host::get_env as *const u8));
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2018-11-20 19:11:58 +00:00
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import_object.set("env", "___syscall1", ImportValue::Func(host::sys_exit as *const u8));
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import_object.set("env", "___syscall3", ImportValue::Func(host::sys_read as *const u8));
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2018-11-21 22:31:55 +00:00
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import_object.set("env", "___syscall4", ImportValue::Func(host::sys_write as *const u8));
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2018-11-20 19:11:58 +00:00
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import_object.set("env", "___syscall5", ImportValue::Func(host::sys_open as *const u8));
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import_object.set("env", "___syscall6", ImportValue::Func(host::sys_close as *const u8));
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2018-11-21 03:24:23 +00:00
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// // EMSCRIPTEN APIS
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2018-11-20 19:11:58 +00:00
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import_object.set("env", "abort", ImportValue::Func(process::em_abort as *const u8));
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import_object.set("env", "_abort", ImportValue::Func(process::_abort as *const u8));
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import_object.set("env", "abortOnCannotGrowMemory", ImportValue::Func(process::abort_on_cannot_grow_memory as *const u8));
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import_object.set("env", "_emscripten_memcpy_big", ImportValue::Func(memory::_emscripten_memcpy_big as *const u8));
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2018-11-21 22:31:55 +00:00
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import_object.set("env", "enlargeMemory", ImportValue::Func(memory::enlarge_memory as *const u8));
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2018-11-20 19:11:58 +00:00
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import_object.set("env", "getTotalMemory", ImportValue::Func(memory::get_total_memory as *const u8));
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2018-11-14 03:19:23 +00:00
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import_object
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}
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#[cfg(test)]
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mod tests {
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use super::generate_emscripten_env;
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use crate::webassembly::{instantiate, Export, Instance};
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#[test]
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fn test_putchar() {
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let wasm_bytes = include_wast2wasm_bytes!("tests/putchar.wast");
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let import_object = generate_emscripten_env();
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let result_object = instantiate(wasm_bytes, import_object).expect("Not compiled properly");
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let func_index = match result_object.module.info.exports.get("main") {
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Some(&Export::Function(index)) => index,
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_ => panic!("Function not found"),
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};
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let main: fn(&Instance) = get_instance_function!(result_object.instance, func_index);
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main(&result_object.instance);
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}
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#[test]
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fn test_print() {
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let wasm_bytes = include_wast2wasm_bytes!("tests/printf.wast");
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let import_object = generate_emscripten_env();
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let result_object = instantiate(wasm_bytes, import_object).expect("Not compiled properly");
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let func_index = match result_object.module.info.exports.get("main") {
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Some(&Export::Function(index)) => index,
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_ => panic!("Function not found"),
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};
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let main: fn(&Instance) = get_instance_function!(result_object.instance, func_index);
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main(&result_object.instance);
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}
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}
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