From cf64cc8e0499dae527efe753f44cee41cf414809 Mon Sep 17 00:00:00 2001
From: Syrus Akbary <me@syrusakbary.com>
Date: Mon, 26 Nov 2018 23:28:37 -0800
Subject: [PATCH] Added ___syscall12 and ___syscall192 implementations

---
 src/apis/emscripten/mod.rs      | 10 +++++++++
 src/apis/emscripten/syscalls.rs | 37 ++++++++++++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/src/apis/emscripten/mod.rs b/src/apis/emscripten/mod.rs
index 16f0dbab0..d2f8e3606 100644
--- a/src/apis/emscripten/mod.rs
+++ b/src/apis/emscripten/mod.rs
@@ -254,6 +254,16 @@ pub fn generate_emscripten_env<'a, 'b>() -> ImportObject<&'a str, &'b str> {
         "___syscall54",
         ImportValue::Func(syscalls::___syscall54 as _),
     );
+    import_object.set(
+        "env",
+        "___syscall12",
+        ImportValue::Func(syscalls::___syscall12 as _),
+    );
+    import_object.set(
+        "env",
+        "___syscall192",
+        ImportValue::Func(syscalls::___syscall192 as _),
+    );
 
     // Process
     import_object.set(
diff --git a/src/apis/emscripten/syscalls.rs b/src/apis/emscripten/syscalls.rs
index 8848701cf..3308e5fc6 100644
--- a/src/apis/emscripten/syscalls.rs
+++ b/src/apis/emscripten/syscalls.rs
@@ -451,7 +451,8 @@ pub extern "C" fn ___syscall39(
     let mode: u32 = varargs.get(instance);
     let pathname_addr = instance.memory_offset_addr(0, pathname as usize) as *const i8;
 
-    unsafe { mkdir(pathname_addr, mode as _) }
+    unsafe { mkdir(pathname_addr, mode as _) };
+    0
 }
 
 // sys_stat64
@@ -508,3 +509,37 @@ pub extern "C" fn ___syscall221(
         _ => -1,
     }
 }
+
+// chdir
+pub extern "C" fn ___syscall12(
+    _which: c_int,
+    mut varargs: VarArgs,
+    instance: &mut Instance,
+) -> c_int {
+    debug!("emscripten::___syscall12");
+    let path_addr: i32 = varargs.get(instance);
+    let path = unsafe {
+        let path_ptr = instance.memory_offset_addr(0, path_addr as usize) as *const i8;
+        let path = std::ffi::CStr::from_ptr(path_ptr).to_str().unwrap();
+        debug!("path: {}", path);
+        path
+    };
+    0
+}
+
+// mmap2
+pub extern "C" fn ___syscall192(
+    _which: c_int,
+    mut varargs: VarArgs,
+    instance: &mut Instance,
+) -> c_int {
+    debug!("emscripten::___syscall192");
+    let addr: i32 = varargs.get(instance);
+    let len: i32 = varargs.get(instance);
+    let prot: i32 = varargs.get(instance);
+    let flags: i32 = varargs.get(instance);
+    let fd: i32 = varargs.get(instance);
+    let off: i32 = varargs.get(instance);
+    debug!("{} {} {} {} {} {}", addr, len, prot, flags, fd, off);
+    0
+}