From bd3b78ccc8452dc1b50f64b814abda9c2f4ad529 Mon Sep 17 00:00:00 2001
From: Lachlan Sneff <lachlan.sneff@gmail.com>
Date: Mon, 26 Nov 2018 16:06:27 -0500
Subject: [PATCH] Add several more syscalls

---
 src/apis/emscripten/env.rs    | 5 ++++-
 src/apis/emscripten/memory.rs | 3 ++-
 src/apis/emscripten/mod.rs    | 6 +++---
 src/apis/emscripten/time.rs   | 4 ++--
 4 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/apis/emscripten/env.rs b/src/apis/emscripten/env.rs
index d8b433533..c3c9f6356 100644
--- a/src/apis/emscripten/env.rs
+++ b/src/apis/emscripten/env.rs
@@ -8,7 +8,6 @@ use libc::{
 use std::ffi::CStr;
 use std::os::raw::c_char;
 use std::{slice, mem};
-use std::time::SystemTime;
 
 use crate::webassembly::Instance;
 <<<<<<< HEAD
@@ -114,3 +113,7 @@ pub extern fn _localtime_r() -> u32 {
 pub extern fn _getpagesize() -> u32 {
     LinearMemory::PAGE_SIZE
 }
+
+pub extern fn _prlimit(pid: c_int, resource: c_int, new_limit: c_int, old_limit: c_int, instance: &mut Instance) -> c_int {
+    0
+}
diff --git a/src/apis/emscripten/memory.rs b/src/apis/emscripten/memory.rs
index cbaa7e6bf..241fe462e 100644
--- a/src/apis/emscripten/memory.rs
+++ b/src/apis/emscripten/memory.rs
@@ -21,7 +21,8 @@ pub extern "C" fn _emscripten_memcpy_big(
 /// emscripten: getTotalMemory
 pub extern "C" fn get_total_memory(instance: &mut Instance) -> u32 {
     debug!("emscripten::get_total_memory");
-    instance.memories[0].current_pages()
+    // instance.memories[0].current_pages()
+    16777216
 }
 
 /// emscripten: enlargeMemory
diff --git a/src/apis/emscripten/mod.rs b/src/apis/emscripten/mod.rs
index 7a24dd663..27aab3460 100644
--- a/src/apis/emscripten/mod.rs
+++ b/src/apis/emscripten/mod.rs
@@ -57,9 +57,9 @@ pub fn emscripten_set_up_memory(memory: &mut LinearMemory) {
 
 macro_rules! mock_external {
     ($import:ident, $name:ident) => {{
-        fn _mocked_fn() -> i32 {
+        extern fn _mocked_fn() -> i32 {
             println!("emscripten::{} <mock>", stringify!($name));
-            0
+            -1
         }
         $import.set(
             "env",
@@ -293,7 +293,7 @@ pub fn generate_emscripten_env<'a, 'b>() -> ImportObject<&'a str, &'b str> {
     import_object.set(
         "env",
         "_clock_gettime",
-        ImportValue::Func(env::_clock_gettime as _),
+        ImportValue::Func(time::_clock_gettime as _),
     );
     import_object.set(
         "env",
diff --git a/src/apis/emscripten/time.rs b/src/apis/emscripten/time.rs
index 35fd37253..296c99f36 100644
--- a/src/apis/emscripten/time.rs
+++ b/src/apis/emscripten/time.rs
@@ -1,5 +1,5 @@
-use libc::{gettimeofday, timeval, c_int, clock_gettime, clockid_t, timespec};
-use std::ptr;
+use libc::{timeval, c_int, clock_gettime as libc_clock_gettime, timespec};
+use std::time::SystemTime;
 
 use crate::webassembly::Instance;