Started stack allocator.

This will replace the current linear allocator so we can free and
realloc memory correctly. This is especially important for the window
resizing due to a fixed LFB size.

1 files changed, 8 insertions, 6 deletions

diff --git a/libc/inc/mem.h b/libc/inc/mem.h
index cb64ce8..9aeeee9 100644
--- a/libc/inc/mem.h
+++ b/libc/inc/mem.h
@@ -7,8 +7,13 @@
 
 // Huh
 #ifdef kernel
-#define malloc(n) (void *)((HEAP += n) - n) // TODO: Implement real/better malloc/free
-#define free(ptr)
+#define HEAP_SIZE 0x10000
+#define HEAP_MAGIC 0x42
+void heap_init(u32 start);
+void *malloc(u32 size);
+void free(void *ptr);
+/* #define malloc(n) (void *)((HEAP += n) - n) // TODO: Implement real/better malloc/free */
+/* #define free(ptr) */
 #elif defined(userspace)
 #include <sys.h>
 #define malloc(n) (void *)sys1(SYS_MALLOC, n)
@@ -17,11 +22,8 @@
 #error "No lib target specified. Please use -Dkernel or -Duserspace"
 #endif
 
-u32 HEAP;
-u32 HEAP_START;
-
 void *memcpy(void *dest, const void *src, u32 n);
-void *memset(void *dest, int c, u32 n);
+void *memset(void *dest, int val, u32 n);
 int memcmp(const void *s1, const void *s2, u32 n);
 
 #endif