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|
(* Boot - Arvo Kernel Boot System
*
* This module handles:
* - Loading pill files (jammed Arvo kernels)
* - Parsing pill structure
* - Initial boot sequence
*
* Pill Structure:
* - A pill is a jammed noun containing the Arvo kernel
* - Format varies, but typically: [kernel-gate initial-state]
* - Or just the kernel-gate itself
*)
(* Boot error *)
type error =
| FileNotFound of string
| InvalidPill of string
| BootFailed of string
(* Pill type *)
type pill = {
kernel: Noun.noun; (* The Arvo kernel gate *)
boot_ova: Noun.noun list; (* Initial events to process *)
}
(* Load pill from file using Eio
*
* Steps:
* 1. Read jammed pill file
* 2. Cue to get kernel noun
* 3. Parse pill structure
*)
let load_pill ~fs pill_path =
try
Printf.printf "[Boot] Loading pill from %s...\n%!" pill_path;
(* Read pill file *)
let file_path = Eio.Path.(fs / pill_path) in
let pill_bytes = Eio.Path.load file_path |> Bytes.of_string in
Printf.printf "[Boot] Pill file: %d bytes (%.1f MB)\n%!"
(Bytes.length pill_bytes)
(float_of_int (Bytes.length pill_bytes) /. 1024.0 /. 1024.0);
Printf.printf "[Boot] Cuing pill (this may take a while)...\n%!";
let start = Unix.gettimeofday () in
(* Cue the pill to get kernel noun *)
let kernel_noun = Serial.cue pill_bytes in
let elapsed = Unix.gettimeofday () -. start in
Printf.printf "[Boot] Pill cued successfully in %.2f seconds\n%!" elapsed;
(* For now, treat the entire pill as the kernel
* In a real implementation, we'd parse the structure:
* - Check if it's a cell with [kernel boot-events]
* - Or just a single kernel gate
*)
Ok {
kernel = kernel_noun;
boot_ova = []; (* No boot events for now *)
}
with
| Sys_error msg ->
Error (FileNotFound msg)
| e ->
Error (InvalidPill (Printexc.to_string e))
(* Create a minimal fake pill for testing
*
* This creates a trivial kernel that's just an atom.
* In reality, the kernel is a huge compiled gate, but for
* testing we can use this simple version.
*)
let fake_pill () = {
kernel = Noun.atom 0; (* Minimal kernel - just 0 *)
boot_ova = [];
}
(* Boot Arvo from a pill
*
* Steps:
* 1. Set kernel state to pill's kernel
* 2. Process boot events if any
* 3. Initialize event counter to 0
*)
let boot_from_pill state pill =
Printf.printf "[Boot] Initializing Arvo kernel...\n%!";
(* Set kernel state *)
State.boot state pill.kernel;
(* Process boot events if any *)
List.iteri (fun i _ovum ->
Printf.printf "[Boot] Processing boot event %d\n%!" i;
(* In real implementation: State.poke state ovum *)
) pill.boot_ova;
Printf.printf "[Boot] ✓ Arvo kernel booted!\n%!";
Ok ()
(* Boot from pill file - convenience function *)
let boot_from_file ~fs state pill_path =
match load_pill ~fs pill_path with
| Error err ->
let msg = match err with
| FileNotFound s -> "File not found: " ^ s
| InvalidPill s -> "Invalid pill: " ^ s
| BootFailed s -> "Boot failed: " ^ s
in
Printf.printf "[Boot] Error: %s\n%!" msg;
Error msg
| Ok pill ->
boot_from_pill state pill
(* Create minimal boot for testing (no pill file needed) *)
let boot_fake state =
Printf.printf "[Boot] Creating fake minimal kernel...\n%!";
let pill = fake_pill () in
boot_from_pill state pill
(* u3v_life: Execute lifecycle formula on ivory core
*
* From C Vere vortex.c:26:
* u3_noun lyf = u3nt(2, u3nc(0, 3), u3nc(0, 2)); // [2 [0 3] [0 2]]
* u3_noun gat = u3n_nock_on(eve, lyf);
* u3_noun cor = u3k(u3x_at(7, gat));
*
* The lifecycle formula [2 [0 3] [0 2]] means:
* - Opcode 2: nock on computed subject
* - [0 3] gets the formula at slot 3
* - [0 2] gets the sample at slot 2
* This calls the lifecycle arm, then we extract slot 7 (context)
*)
let life eve =
try
(* Build lifecycle formula: [2 [0 3] [0 2]] *)
let lyf = Noun.cell (Noun.atom 2)
(Noun.cell
(Noun.cell (Noun.atom 0) (Noun.atom 3))
(Noun.cell (Noun.atom 0) (Noun.atom 2))) in
Printf.printf "[Boot] Running lifecycle formula [2 [0 3] [0 2]]...\n%!";
(* Debug: check what's in slot 2 and slot 3 *)
(try
let slot2 = Noun.slot (Z.of_int 2) eve in
let slot3 = Noun.slot (Z.of_int 3) eve in
Printf.printf "[Boot] Slot 2: %s\n%!"
(if Noun.is_cell slot2 then "cell" else "atom");
Printf.printf "[Boot] Slot 3: %s\n%!"
(if Noun.is_cell slot3 then "cell" else "atom");
with _ -> ());
(* Run lifecycle formula on ivory core *)
let gat =
try
Nock.nock_on eve lyf
with e ->
Printf.printf "[Boot] ✗ Nock failed during lifecycle: %s\n%!"
(Printexc.to_string e);
raise e
in
Printf.printf "[Boot] ✓ Lifecycle formula completed\n%!";
Printf.printf "[Boot] Result is: %s\n%!"
(if Noun.is_cell gat then "cell" else "atom");
(* Extract slot 7 (the context) from resulting gate *)
let cor =
try
Noun.slot (Z.of_int 7) gat
with e ->
Printf.printf "[Boot] ✗ Failed to extract slot 7: %s\n%!"
(Printexc.to_string e);
Printf.printf "[Boot] (Result type: %s)\n%!"
(if Noun.is_cell gat then "cell" else "atom");
raise e
in
Printf.printf "[Boot] ✓ Extracted slot 7 from result\n%!";
cor
with e ->
Printf.printf "[Boot] ✗ u3v_life failed: %s\n%!" (Printexc.to_string e);
raise e
(* Boot from ivory pill - the lightweight boot sequence
*
* Ivory pills have structure: ["ivory" core]
* The core contains a lifecycle formula that must be executed
*)
let boot_ivory ~fs state pill_path =
Printf.printf "[Boot] Booting from ivory pill...\n%!";
match load_pill ~fs pill_path with
| Error err ->
let msg = match err with
| FileNotFound s -> "File not found: " ^ s
| InvalidPill s -> "Invalid pill: " ^ s
| BootFailed s -> "Boot failed: " ^ s
in
Printf.printf "[Boot] Error: %s\n%!" msg;
Error msg
| Ok pill ->
(* Check if pill has ivory tag *)
if not (Noun.is_cell pill.kernel) then
Error "Ivory pill must be a cell"
else begin
let hed = Noun.head pill.kernel in
let tal = Noun.tail pill.kernel in
(* Check for "ivory" tag *)
(* "ivory" as cord (little-endian): 0x79726f7669 = 521610950249 *)
let ivory_tag = Z.of_string "521610950249" in
match hed with
| Noun.Atom z when Z.equal z ivory_tag ->
Printf.printf "[Boot] ✓ Found ivory tag\n%!";
Printf.printf "[Boot] Running lifecycle formula...\n%!";
(try
let start = Unix.gettimeofday () in
let core = life tal in
let elapsed = Unix.gettimeofday () -. start in
Printf.printf "[Boot] ✓ Lifecycle completed in %.4fs\n%!" elapsed;
Printf.printf "[Boot] Setting Arvo core...\n%!";
State.boot state core;
Printf.printf "[Boot] ✓ Ivory pill booted!\n%!";
Ok ()
with e ->
Error ("Lifecycle failed: " ^ Printexc.to_string e))
| _ ->
Printf.printf "[Boot] Warning: No ivory tag found, trying regular boot...\n%!";
boot_from_pill state pill
end
|
