Export breakpoint fn from ewext

ewext/Cargo.toml

@@ -9,7 +9,7 @@ crate-type = ["cdylib"]
 
 [profile.release]
 lto = true
-strip = true # Not having that causes wine debugger to crash.
+#strip = true # Not having that causes wine debugger to crash.
 panic = "abort"
 split-debuginfo = "packed"
 incremental=true

ewext/src/lib.rs

@@ -350,6 +350,12 @@ pub(crate) fn print_error(error: eyre::Report) -> eyre::Result<()> {
     Ok(())
 }
 
+fn lua_breakpoint(_lua: LuaState) {
+    unsafe {
+        std::arch::asm!("int 3");
+    }
+}
+
 /// # Safety
 ///
 /// Only gets called by lua when loading a module.
@@ -411,6 +417,8 @@ pub unsafe extern "C" fn luaopen_ewext(lua: *mut lua_State) -> c_int {
         add_lua_fn!(module_on_new_entity);
         add_lua_fn!(module_on_projectile_fired);
 
+        add_lua_fn!(lua_breakpoint);
+
         fn sync_projectile(lua: LuaState) -> eyre::Result<()> {
             ExtState::with_global(|state| {
                 let entity = lua.to_integer(1);

quant.ew/init.lua

@@ -41,6 +41,8 @@ else
     ModMagicNumbersFileAdd("mods/quant.ew/files/magic.xml")
 end
 
+util.add_cross_call("ewext_breakpoint", ewext.lua_breakpoint)
+
 util.add_cross_call("ew_per_peer_seed", function()
     return tonumber(string.sub(ctx.my_id, 8, 12), 16), tonumber(string.sub(ctx.my_id, 12), 16)
 end)