Update drivers

library/stdcpp.cpp

@@ -0,0 +1,73 @@
+/*
+	This file is part of Fennix Drivers.
+
+	Fennix Drivers is free software: you can redistribute it and/or
+	modify it under the terms of the GNU General Public License as
+	published by the Free Software Foundation, either version 3 of
+	the License, or (at your option) any later version.
+
+	Fennix Drivers is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with Fennix Drivers. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <base.h>
+#include <driver.h>
+
+extern __driverAPI *API;
+
+/**
+ * TODO: memory allocator
+ * we can't really call kernel's malloc because the
+ * kernel keep track of memory usage for each driver
+ *
+ * maybe implement the allocator in vma?
+ */
+
+void *__new_alloc_page(std::size_t Size)
+{
+	/* Do not allow allocations larger than 4 KiB */
+	if (Size > PAGE_SIZE)
+		asmv("ud2");
+
+	return API->RequestPages(API->MajorID, 1);
+}
+
+void __delete_alloc_page(void *Pointer)
+{
+	API->FreePages(API->MajorID, Pointer, 1);
+}
+
+void *operator new(std::size_t Size)
+{
+	return __new_alloc_page(Size);
+}
+
+void *operator new[](std::size_t Size)
+{
+	return __new_alloc_page(Size);
+}
+
+void operator delete(void *Pointer)
+{
+	__delete_alloc_page(Pointer);
+}
+
+void operator delete[](void *Pointer)
+{
+	__delete_alloc_page(Pointer);
+}
+
+void operator delete(void *Pointer, std::size_t)
+{
+	__delete_alloc_page(Pointer);
+}
+
+void operator delete[](void *Pointer, std::size_t)
+{
+	__delete_alloc_page(Pointer);
+}