Added dyn allocator + syscall wrappers + minor fixes.

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/include/syscalls.h b/lib/include/syscalls.h
new file mode 100644
index 0000000..34b6b37
--- /dev/null
+++ b/lib/include/syscalls.h
@@ -0,0 +1,23 @@
+// Copyright (c) 2021 Johannes Stoelp
+
+#pragma once
+
+#include <stddef.h>     // size_t
+#include <sys/types.h>  // ssize_t, off_t, ...
+
+// Syscall definitions taken from corresponding man pages, eg
+//   open(2)
+//   read(2)
+//   ...
+
+#define O_RDONLY 00
+int open(const char* path, int flags);
+
+ssize_t read(int fd, void* buf, size_t count);
+
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+off_t lseek(int fd, off_t offset, int whence);
+
+void _exit(int status);