libc: refactor a couple of string routines

This is just a minor overhaul of several utility
functions, in part because it kept bothering me
and in part because i was bored.

include/stdlib.h

@@ -0,0 +1,34 @@
+/* See the end of this file for copyright and license terms. */
+
+#pragma once
+
+#include <gay/cdefs.h>
+#include <gay/types.h>
+
+#ifdef _KERNEL
+#include <gay/mm.h>
+#define malloc(size) kmalloc(size, MM_KERNEL)
+#efine free(ptr) kfree(ptr)
+#else
+/*
+ * i still have to do some include flags fuckery to get this working, for now
+ * these are just implemented in kernel/mm/kmalloc.c as __weak functions because
+ * this libc is *always* linked against the kernel atm.
+ */
+extern void *malloc(usize size) __malloc_like __alloc_size(1);
+extern void free(void *ptr);
+#endif
+
+/*
+ * This file is part of GayBSD.
+ * Copyright (c) 2021 fef <owo@fef.moe>.
+ *
+ * GayBSD is nonviolent software: you may only use, redistribute, and/or
+ * modify it under the terms of the Cooperative Nonviolent Public License
+ * (CNPL) as found in the LICENSE file in the source code root directory
+ * or at <https://git.pixie.town/thufie/npl-builder>; either version 7
+ * of the license, or (at your option) any later version.
+ *
+ * GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
+ * permitted by applicable law.  See the CNPL for details.
+ */