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Trying to make it work

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This commit is contained in:
Syrus 2018-12-11 22:10:35 -08:00
parent 332840afe3
commit 38bd62be4d
1 changed files with 21 additions and 2 deletions
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23
src/apis/emscripten/env.rs
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@ -5,7 +5,7 @@ use std::ffi::CStr;
use std::mem;
use std::os::raw::c_char;
use super::utils::{copy_cstr_into_wasm, copy_terminated_array_of_cstrs};
use super::utils::{copy_cstr_into_wasm, copy_terminated_array_of_cstrs, allocate_on_stack};
use crate::webassembly::Instance;
/// emscripten: _getenv
@ -102,8 +102,27 @@ pub extern "C" fn _getpagesize() -> u32 {
16384
}
pub extern "C" fn ___build_environment(environ: c_int) {
pub extern "C" fn ___build_environment(environ: c_int, instance: &mut Instance) {
debug!("emscripten::___build_environment {}", environ);
const MAX_ENV_VALUES: u32 = 64;
const TOTAL_ENV_SIZE: u32 = 1024;
let mut environment =
instance.memory_offset_addr(0, environ as _) as *mut c_int;
unsafe {
let (pool_offset, pool_slice): (u32, &mut [u8]) = allocate_on_stack(TOTAL_ENV_SIZE as u32, instance);
let (env_offset, env_slice): (u32, &mut [u8]) = allocate_on_stack((MAX_ENV_VALUES*4) as u32, instance);
let mut env_ptr =
instance.memory_offset_addr(0, env_offset as _) as *mut c_int;
let mut pool_ptr =
instance.memory_offset_addr(0, pool_offset as _) as *mut c_int;
*env_ptr = pool_offset as i32;
*environment = env_offset as i32;
// *env_ptr = 0;
};
// unsafe {
// *env_ptr = 0;
// };
}
pub extern "C" fn _sysconf(name: c_int, _instance: &mut Instance) -> c_long {