1 files changed, 9 insertions, 0 deletions
diff --git a/src/lib/syscall.zig b/src/lib/syscall.zig
index 03abade..8d42e7a 100644
--- a/src/lib/syscall.zig
+++ b/src/lib/syscall.zig
@@ -9,6 +9,7 @@ const mem = @import("mem.zig");
 const paging = @import("paging.zig");
 const process = @import("process.zig");
 const riscv = @import("riscv.zig");
+const userinit = @import("userinit.zig");
 
 pub const Error = error{
     ZeroAddressSupplied,
@@ -27,6 +28,7 @@ pub fn handler(proc: *process.Info, trap_frame: *TrapFrame) !void {
         100004 => trap_frame.setReturnValue(terminate(proc, trap_frame)),
         100005 => trap_frame.setReturnValue(processId(proc)),
         100006 => trap_frame.setReturnValue(threadId(proc)),
+        100007 => trap_frame.setReturnValue(rawUserinit(trap_frame)),
         else => return HandleError.UnknownSyscall,
     }
 }
@@ -138,3 +140,10 @@ fn processId(proc: *const process.Info) usize {
 fn threadId(proc: *const process.Info) usize {
     return proc.thread_id;
 }
+
+// rawUserinit(ptr: *[*]const u8) usize
+fn rawUserinit(trap_frame: *const TrapFrame) usize {
+    const ptr: *[*]const u8 = @ptrFromInt(trap_frame.general_purpose_registers[10]);
+    ptr.* = userinit.tarball;
+    return userinit.tarball.len;
+}