1 files changed, 20 insertions, 13 deletions
diff --git a/src/lib/syscall.zig b/src/lib/syscall.zig
index 3ce70a5..9f88aea 100644
--- a/src/lib/syscall.zig
+++ b/src/lib/syscall.zig
@@ -20,20 +20,22 @@ pub const HandleError = error{
 };
 
 pub fn handler(proc: *process.Info, trap_frame: *trap.Frame) !void {
+    const ret = sysexchange.frameReturn;
     switch (trap_frame.general_purpose_registers[17]) {
-        100000 => uprint(trap_frame),
-        100001 => open(proc, trap_frame),
-        100002 => close(proc, trap_frame),
-        100003 => provideStream(proc, trap_frame),
-        100004 => provideFile(proc, trap_frame),
-        100005 => provideHook(proc, trap_frame),
-        100006 => mkdir(proc, trap_frame),
-        100007 => provideDirHook(proc, trap_frame),
-        100008 => remove(trap_frame),
-        100009 => read(proc, trap_frame),
-        100010 => write(proc, trap_frame),
-        100011 => list(proc, trap_frame),
-        100012 => terminate(proc),
+        100000 => ret(null, trap_frame, uprint(trap_frame)),
+        100001 => ret(null, trap_frame, open(proc, trap_frame)),
+        100002 => ret(null, trap_frame, close(proc, trap_frame)),
+        100003 => ret(null, trap_frame, provideStream(proc, trap_frame)),
+        100004 => ret(null, trap_frame, provideFile(proc, trap_frame)),
+        100005 => ret(null, trap_frame, provideHook(proc, trap_frame)),
+        100006 => ret(null, trap_frame, mkdir(proc, trap_frame)),
+        100007 => ret(null, trap_frame, provideDirHook(proc, trap_frame)),
+        100008 => ret(null, trap_frame, remove(trap_frame)),
+        100009 => ret(null, trap_frame, read(proc, trap_frame)),
+        100010 => ret(null, trap_frame, write(proc, trap_frame)),
+        100011 => ret(null, trap_frame, list(proc, trap_frame)),
+        100012 => ret(null, trap_frame, terminate(proc)),
+        100013 => ret(null, trap_frame, processId(proc)),
         else => return HandleError.UnknownSyscall,
     }
 }
@@ -308,3 +310,8 @@ fn terminate(proc: *process.Info) void {
         std.debug.panic("Unable to schedule because all processes are terminated: {}", .{err});
     };
 }
+
+// processId() usize
+fn processId(proc: *process.Info) usize {
+    return proc.id;
+}