fluencelabs/wasmer
1
0
Fork 0
mirror of https://github.com/fluencelabs/wasmer synced 2025-06-24 14:11:32 +00:00
Code Issues Projects Releases Wiki Activity

add misc changes while debugging

Browse Source
This commit is contained in:
Mark McCaskey
2019-05-03 17:34:57 -07:00
parent 7cd1cd6767
commit 353ff60c0f
7 changed files with 85 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
lib/emscripten/src/env/mod.rs vendored
View File

@ -60,21 +60,51 @@ pub fn ___build_environment(ctx: &mut Ctx, environ: c_int) {
const MAX_ENV_VALUES: u32 = 64;
const TOTAL_ENV_SIZE: u32 = 1024;
let environment = emscripten_memory_pointer!(ctx.memory(0), environ) as *mut c_int;
unsafe {
let (mut pool_offset, env_ptr, mut pool_ptr) = unsafe {
let (pool_offset, _pool_slice): (u32, &mut [u8]) =
allocate_on_stack(ctx, TOTAL_ENV_SIZE as u32);
let (env_offset, _env_slice): (u32, &mut [u8]) =
allocate_on_stack(ctx, (MAX_ENV_VALUES * 4) as u32);
let env_ptr = emscripten_memory_pointer!(ctx.memory(0), env_offset) as *mut c_int;
let mut _pool_ptr = emscripten_memory_pointer!(ctx.memory(0), pool_offset) as *mut c_int;
let pool_ptr = emscripten_memory_pointer!(ctx.memory(0), pool_offset) as *mut u8;
*env_ptr = pool_offset as i32;
*environment = env_offset as i32;
// *env_ptr = 0;
(pool_offset, env_ptr, pool_ptr)
};
// unsafe {
// *env_ptr = 0;
// };
// *env_ptr = 0;
let default_vars = vec![
["USER", "web_user"],
["LOGNAME", "web_user"],
["PATH", "/"],
["PWD", "/"],
["HOME", "/home/web_user"],
["LANG", "C.UTF-8"],
["_", "thisProgram"],
];
let mut strings = vec![];
let mut total_size = 0;
for [key, val] in &default_vars {
let line = key.to_string() + "=" + val;
total_size += line.len();
strings.push(line);
}
if total_size as u32 > TOTAL_ENV_SIZE {
panic!("Environment size exceeded TOTAL_ENV_SIZE!");
}
unsafe {
for (i, s) in strings.iter().enumerate() {
for (j, c) in s.chars().enumerate() {
debug_assert!(c < u8::max_value() as char);
*pool_ptr.add(j) = c as u8;
}
*env_ptr.add(i * 4) = pool_offset as i32;
pool_offset += s.len() as u32 + 1;
pool_ptr = pool_ptr.add(s.len() + 1);
}
*env_ptr.add(strings.len() * 4) = 0;
}
}
pub fn ___assert_fail(_ctx: &mut Ctx, _a: c_int, _b: c_int, _c: c_int, _d: c_int) {