1 files changed, 18 insertions, 0 deletions
diff --git a/sysroot/usr/include/unistd.h b/sysroot/usr/include/unistd.h
new file mode 100644
index 0000000..f5a67ab
--- /dev/null
+++ b/sysroot/usr/include/unistd.h
@@ -0,0 +1,18 @@
+#ifndef _UNISTD_H
+#define _UNISTD_H
+
+#include <stddef.h>
+
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+
+long read(int fd, void* buffer, size_t length);
+long write(int fd, const void* buffer, size_t length);
+int close(int fd);
+long lseek(int fd, long offset, int whence);
+
+void* sbrk(long increment);
+int brk(void* address);
+
+#endif