libc heap impl

1 files changed, 19 insertions, 0 deletions

diff --git a/lib/libc-jove/stdlib/heap.h b/lib/libc-jove/stdlib/heap.h
new file mode 100644
index 0000000..9628444
--- /dev/null
+++ b/lib/libc-jove/stdlib/heap.h
@@ -0,0 +1,19 @@
+#ifndef _LIBC_JOVE_HEAP_H
+#define _LIBC_JOVE_HEAP_H 1
+
+#include <stdint.h>
+#include <stddef.h>
+
+#define LIBC_HEAP_INIT_SIZE (0x1000)
+#define LIBC_HEAP_MINALLOC (0x10)
+#define LIBC_HEAP_MINSPLIT (sizeof(heap_bin_t) + sizeof(uintptr_t) + LIBC_HEAP_MINALLOC)
+
+typedef struct heap_bin {
+    struct heap_bin *next;
+    size_t size_taken;
+    char data[];
+} heap_bin_t;
+
+void __libc_heap_init(uintptr_t program_end);
+
+#endif