libk: create a subset libc for kernel use

Create a subset of the C library for use inside the kernel.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/include/kernel/kmalloc.h b/include/libk/kmalloc.h
index d8debd1..6573d28 100644
--- a/include/kernel/kmalloc.h
+++ b/include/libk/kmalloc.h
@@ -1,14 +1,15 @@
-#ifndef KERNEL_KMALLOC_H
-#define KERNEL_KMALLOC_H
+#ifndef LIBK_KMALLOC_H
+#define LIBK_KMALLOC_H
 
 #include <stdint.h>
 #include <stddef.h>
 
 struct mem_block {
-        uintptr_t start;
+        void *start;
         size_t size;
         int alloc;
         struct mem_block *next;
+        struct mem_block *prev;
 };
 
 void kmalloc_init(void);