1 files changed, 62 insertions, 0 deletions
diff --git a/Userland/Libraries/LibSystem/syscall.h b/Userland/Libraries/LibSystem/syscall.h
new file mode 100644
index 0000000000..68aea02258
--- /dev/null
+++ b/Userland/Libraries/LibSystem/syscall.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <Kernel/API/Syscall.h>
+#include <sys/types.h>
+
+extern "C" {
+
+uintptr_t syscall0(uintptr_t function);
+uintptr_t syscall1(uintptr_t function, uintptr_t arg0);
+uintptr_t syscall2(uintptr_t function, uintptr_t arg0, uintptr_t arg1);
+uintptr_t syscall3(uintptr_t function, uintptr_t arg0, uintptr_t arg1, uintptr_t arg2);
+}
+
+#ifdef __cplusplus
+
+inline uintptr_t syscall(auto function)
+{
+    return syscall0(function);
+}
+
+inline uintptr_t syscall(auto function, auto arg0)
+{
+    return syscall1((uintptr_t)function, (uintptr_t)arg0);
+}
+
+inline uintptr_t syscall(auto function, auto arg0, auto arg1)
+{
+    return syscall2((uintptr_t)function, (uintptr_t)arg0, (uintptr_t)arg1);
+}
+
+inline uintptr_t syscall(auto function, auto arg0, auto arg1, auto arg2)
+{
+    return syscall3((uintptr_t)function, (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2);
+}
+
+#endif