mach loading

internal/os.c

@@ -425,6 +425,22 @@ static JSValue js_os_dylib_has_symbol(JSContext *js, JSValue self, int argc, JSV
   return JS_NewBool(js, symbol != NULL);
 }
 
+/* Load a native .cm module from a dylib handle.
+   Uses cell_rt_native_module_load from qbe_helpers.c */
+extern JSValue cell_rt_native_module_load(JSContext *ctx, void *dl_handle);
+
+static JSValue js_os_native_module_load(JSContext *js, JSValue self, int argc, JSValue *argv)
+{
+  if (argc < 1)
+    return JS_ThrowTypeError(js, "native_module_load requires a dylib object");
+
+  void *handle = JS_GetOpaque(argv[0], js_dylib_class_id);
+  if (!handle)
+    return JS_ThrowTypeError(js, "First argument must be a dylib object");
+
+  return cell_rt_native_module_load(js, handle);
+}
+
 JSC_CCALL(os_print,
     size_t len;
     const char *str = JS_ToCStringLen(js, &len, argv[0]);
@@ -552,6 +568,37 @@ JSC_CCALL(os_getenv,
     ret = JS_NULL;
 )
 
+/* --- Embedded module table (generated for static builds) ---
+   Uses dlsym to check if cell_embedded_module_lookup exists at runtime.
+   When linking a static build with a generated module_table.c, the symbol
+   will be found; in dynamic builds it returns NULL gracefully. */
+
+struct cell_embedded_entry {
+  const char *name;
+  const unsigned char *data;
+  size_t size;
+};
+
+typedef const struct cell_embedded_entry *(*cell_embed_lookup_fn)(const char *);
+
+static JSValue js_os_embedded_module(JSContext *js, JSValue self, int argc, JSValue *argv)
+{
+  cell_embed_lookup_fn lookup = (cell_embed_lookup_fn)dlsym(RTLD_DEFAULT, "cell_embedded_module_lookup");
+  if (!lookup)
+    return JS_NULL;
+
+  const char *name = JS_ToCString(js, argv[0]);
+  if (!name) return JS_NULL;
+
+  const struct cell_embedded_entry *entry = lookup(name);
+  JS_FreeCString(js, name);
+
+  if (!entry) return JS_NULL;
+
+  /* Return the mach blob as a stoned blob */
+  return js_new_blob_stoned_copy(js, (void *)entry->data, entry->size);
+}
+
 static const JSCFunctionListEntry js_os_funcs[] = {
   MIST_FUNC_DEF(os, platform, 0),
   MIST_FUNC_DEF(os, arch, 0),
@@ -568,6 +615,8 @@ static const JSCFunctionListEntry js_os_funcs[] = {
   MIST_FUNC_DEF(os, dylib_open, 1),
   MIST_FUNC_DEF(os, dylib_symbol, 2),
   MIST_FUNC_DEF(os, dylib_has_symbol, 2),
+  MIST_FUNC_DEF(os, native_module_load, 1),
+  MIST_FUNC_DEF(os, embedded_module, 1),
   MIST_FUNC_DEF(os, load_internal, 1),
   MIST_FUNC_DEF(os, internal_exists, 1),
   MIST_FUNC_DEF(os, print, 1),