STRUCT BINDER_OBJECT(9)

💖 struct binder_object(9) 💖

okay so bestie, welcome to the Kernel API Manual, section 9 — this is the page for struct binder_object(9), and it's literally a union of the flat binder object types. no cap. ✨

🌸 NAME 🌸

struct binder_object — union of flat binder object types. That's the whole name, and yes it ate. 💅

🦋 SYNOPSIS 🦋

       struct binder_object {
           union {
             struct binder_object_header hdr;
             struct flat_binder_object fbo;
             struct binder_fd_object fdo;
             struct binder_buffer_object bbo;
             struct binder_fd_array_object fdao;
           };
        };

🎀 Members 🎀

okay so inside this union bestie, you get these:

• {unnamed_union} — anonymous. It's giving mysterious unnamed union energy, and honestly? iconic. 🫥
• hdr — generic object header. ✨
• fbo — binder object (nodes and refs). periodt. 🔥
• fdo — file descriptor object. slay. 🎀
• bbo — binder buffer pointer. 💜
• fdao — file descriptor array. 🌈

💫 Description 💫

Used for type-independent object copies. That's it, that's the vibe — this struct is the type-independent copy moment, and it's lowkey doing exactly what it says on the tin. 🫶

👀 SEE ALSO 👀

• Kernel file ./drivers/android/binder_internal.h and struct binder_device(9) — linked in the source-y way, iykyk. 🧚
• struct binder_work(9) — go read it, bestie. 💖
• struct binder_node(9) — nodes are main characters too. 👑
• struct binder_ref_data(9) — ref data, no cap. ⭐
• struct binder_ref(9) — refs, slay. 🔥
• struct binder_proc(9) — proc stuff, bestie. 🦋
• struct binder_thread(9) — thread energy. 🌸
• struct binder_txn_fd_fixup(9) — the fixup, periodt. 💅

mwah 💋 — source/version: ./drivers/android; date: October 2026; page: struct binder_object(9). bye bestie, go copy some objects type-independently 🫶✨