-- GCL Self-Host — Child Kernel Generation with Lawful Boundaries -- -- The dangerous version: -- "Kernel compiles itself because recursion is cool." -- -- The useful version: -- "Kernel emits child only when build has lawfulLoss receipt -- and child preserves required invariants." -- -- Architecture: -- Parent Kernel → GCL Compile Pass → Child Candidate -- ↓ -- Metaprobe Gate (verification) -- ↓ -- Bootable Child (if lawful) -- -- The child kernel does not need to be trusted because -- Linux/the VM harness can judge it via LawfulHardware witnesses. -- -- Truth Seal: [ SSS-ENE-SELF-HOST-2026-05-03 ] module GCLSelfHost where import BaseTypes import Memory import SyscallInterface import Semantics.LawfulLoss (BindResult, lawfulLoss, mkLawful, mkUnlawful) import LawfulHardware (HardwareEvent, eventToBindResult, generateWitnessReport) -- ═══════════════════════════════════════════════════════════════════════════ -- §1 Compilation Pass — Source to Bytecode -- ═══════════════════════════════════════════════════════════════════════════ /-- The GCL compiler transforms source code into bytecode. This is the "build" operation that must be witnessed. -/] def gclCompile (source : GCLSource) (config : CompileConfig) : CompileResult := -- Phase 1: Lexical analysis let tokens ← lexSource source recordPhaseWitness "lex" tokens.size -- Phase 2: Parse to AST let ast ← parseTokens tokens recordPhaseWitness "parse" ast.nodeCount -- Phase 3: Type checking let typedAST ← typeCheckAST ast recordPhaseWitness "typecheck" typedAST.typeCount -- Phase 4: Optimization let optimized ← optimizeAST typedAST config.optimizationLevel recordPhaseWitness "optimize" optimized.optimizationScore -- Phase 5: Code generation let bytecode ← generateBytecode optimized recordPhaseWitness "codegen" bytecode.size -- Compute total compilation cost let totalCost := computeCompileCost source bytecode -- Verify invariants let invariantsPreserved := verifyCompileInvariants source bytecode -- Generate compilation witness let witness := "GCL_COMPILE:" ++ source.path ++ ";phases:lex,parse,typecheck,optimize,codegen" ++ ";size_in:" ++ source.size.toString ++ ";size_out:" ++ bytecode.size.toString -- Create BindResult for this compilation let compileResult := lawfulLoss invariantsPreserved totalCost witness .control return { bytecode := bytecode compileWitness := compileResult success := compileResult.lawful } /-- Record intermediate witness for each compilation phase. This allows fine-grained rollback if a phase fails. -/] def recordPhaseWitness (phase : String) (metric : Nat) : IO Unit := do let phaseWitness := { lawful := true cost := Q0_16.ofFloat (metric.toFloat / 1000000.0) -- Normalize witness := "COMPILE_PHASE:" ++ phase ++ ";metric:" ++ metric.toString klass := .control } logWitness globalWitnessLog phaseWitness -- ═══════════════════════════════════════════════════════════════════════════ -- §2 Child Kernel Candidate Generation -- ═══════════════════════════════════════════════════════════════════════════ /-- Generate a child kernel candidate from current kernel source. The child is a modified version optimized for a specific target. -/] def generateChildCandidate (parentSource : GCLSource) (targetConfig : TargetConfig) : IO ChildCandidate := do consoleLog "[SELF-HOST] Generating child kernel candidate..." -- 1. Analyze parent capabilities let parentCaps ← analyzeKernelCapabilities -- 2. Determine child requirements let childReqs := deriveChildRequirements parentCaps targetConfig -- 3. Transform source for child let childSource := transformSourceForChild parentSource childReqs -- 4. Compile child let compileResult := gclCompile childSource { optimizationLevel := .Aggressive targetPlatform := targetConfig.platform stripDebug := true } if !compileResult.success then consoleLog "[SELF-HOST] Child compilation failed" return { valid := false } -- 5. Package with required metadata return { valid := true bytecode := compileResult.bytecode compileWitness := compileResult.compileWitness parentHash := hash parentSource targetConfig := targetConfig capabilities := childReqs generation := parentCaps.generation + 1 } /-- Derive what the child kernel needs based on target and parent. This is the "specification" phase. -/] def deriveChildRequirements (parentCaps : KernelCapabilities) (target : TargetConfig) : ChildRequirements := -- Child inherits parent's lawful hardware capability -- But may lose FAMM-neuromorphic if target is memory-constrained -- May gain specialized drivers for target hardware { hardwareInterface := target.requiredDrivers memoryBudget := min parentCaps.availableMemory target.maxMemory networkStack := if target.hasNetwork then .Full else .Minimal lawfulHardware := true -- Always required fammNeuromorphic := parentCaps.fammSupport && target.memory >= 128 eneSwarm := parentCaps.eneSupport generationNumber := parentCaps.generation + 1 } -- ═══════════════════════════════════════════════════════════════════════════ -- §3 Metaprobe Gate — Verification Before Boot -- ═══════════════════════════════════════════════════════════════════════════ /-- The metaprobe gate is the critical checkpoint. Child candidate is verified before it ever boots. Three checks: 1. Structural: Bytecode is well-formed 2. Behavioral: Child preserves parent invariants 3. Safety: Child cannot escape sandbox -/] def metaprobeGate (candidate : ChildCandidate) : IO GateResult := do consoleLog "[METAPROBE] Verifying child kernel candidate..." -- Check 1: Structural verification let structCheck ← structuralVerification candidate.bytecode if !structCheck.passed then return { passed := false reason := "Structural: " ++ structCheck.failureReason witness := structCheck.witness } -- Check 2: Behavioral equivalence (requires Linux harness) consoleLog "[METAPROBE] Running behavioral comparison..." let behaviorCheck ← behavioralVerification candidate if !behaviorCheck.passed then return { passed := false reason := "Behavioral: " ++ behaviorCheck.failureReason witness := behaviorCheck.witness } -- Check 3: Safety sandbox check let safetyCheck ← safetyVerification candidate if !safetyCheck.passed then return { passed := false reason := "Safety: " ++ safetyCheck.failureReason witness := safetyCheck.witness } -- All checks passed let gateWitness := { lawful := true cost := Q0_16.half -- Significant cost to run metaprobe witness := "METAPROBE_PASS:gen" ++ candidate.generation.toString ++ ";struct:" ++ structCheck.score.toString ++ ";behavior:" ++ behaviorCheck.score.toString ++ ";safety:" ++ safetyCheck.score.toString klass := .control } return { passed := true witness := gateWitness } /-- Structural verification: Bytecode analysis. Checks for: - Valid opcodes - Proper stack discipline - No undefined jumps - Memory bounds respected -/] def structuralVerification (bytecode : Bytecode) : IO StructuralResult := do let verifier := createBytecodeVerifier -- Check each instruction for instr in bytecode.instructions do if !verifier.validOpcode instr.opcode then return { passed := false failureReason := "Invalid opcode: " ++ instr.opcode.toString witness := "STRUCT_FAIL:opcode:" ++ instr.offset.toString } -- Check stack balance let stackDepth := computeStackDepth bytecode if stackDepth.max > MAX_STACK || stackDepth.min < 0 then return { passed := false failureReason := "Stack imbalance" witness := "STRUCT_FAIL:stack:max=" ++ stackDepth.max.toString } return { passed := true score := computeStructuralScore bytecode witness := "STRUCT_PASS:instrs=" ++ bytecode.instructions.size.toString } /-- Behavioral verification: Compare against parent in system call harness. Both parent and child run in VM harness, executing same test sequence. Their syscall traces are compared for equivalence. -/] def behavioralVerification (candidate : ChildCandidate) : IO BehavioralResult := do -- This requires Linux VM harness (QEMU or similar) -- Parent runs test suite, records syscall trace -- Child runs same test suite, records syscall trace -- Compare traces for divergence let parentTrace ← runInHarness candidate.parentHash testSequence let childTrace ← runInHarness candidate.bytecode testSequence let divergence := compareTraces parentTrace childTrace if divergence.significant then return { passed := false failureReason := "Behavioral divergence at: " ++ divergence.location witness := "BEHAV_FAIL:" ++ divergence.details } return { passed := true score := 1.0 - divergence.amount witness := "BEHAV_PASS:divergence=" ++ divergence.amount.toString } /-- Safety verification: Ensure child cannot escape sandbox. Checks for: - No direct hardware access (must go through shim) - No arbitrary memory writes - No privilege escalation paths - Bounded resource consumption -/] def safetyVerification (candidate : ChildCandidate) : IO SafetyResult := do -- Static analysis of bytecode let dangerousOps := findDangerousOperations candidate.bytecode if dangerousOps.any then return { passed := false failureReason := "Dangerous operations: " ++ dangerousOps.list witness := "SAFETY_FAIL:" ++ dangerousOps.first.toString } -- Check resource bounds let resourceBounds ← analyzeResourceBounds candidate.bytecode if resourceBounds.memory > candidate.targetConfig.maxMemory then return { passed := false failureReason := "Memory bound exceeded" witness := "SAFETY_FAIL:memory=" ++ resourceBounds.memory.toString } return { passed := true score := 1.0 witness := "SAFETY_PASS:ops=" ++ bytecode.instructions.size.toString } -- ═══════════════════════════════════════════════════════════════════════════ -- §4 Child Kernel Boot (After Passing Gate) -- ═══════════════════════════════════════════════════════════════════════════ /-- Boot the verified child kernel. Parent remains running as supervisor. -/] def bootChildKernel (candidate : ChildCandidate) (gateResult : GateResult) : IO BootResult := do if !gateResult.passed then consoleLog "[SELF-HOST] Child rejected by metaprobe gate" return { success := false } consoleLog "[SELF-HOST] Booting generation " ++ candidate.generation.toString ++ " child..." -- 1. Allocate child memory space let childMemory ← allocateChildMemory candidate.targetConfig.maxMemory -- 2. Load bytecode into child space loadBytecodeIntoMemory candidate.bytecode childMemory -- 3. Set up child execution context let childContext := createChildContext { memory := childMemory entryPoint := candidate.bytecode.entryPoint stackSize := DEFAULT_STACK_SIZE } -- 4. Start child (but parent continues running as supervisor) let childPid ← spawnChild childContext -- 5. Parent monitors child via lawful hardware startChildMonitoring childPid candidate -- 6. Log the boot let bootWitness := { lawful := true cost := Q0_16.half witness := "CHILD_BOOT:gen=" ++ candidate.generation.toString ++ ";pid=" ++ childPid.toString ++ ";parent=" ++ candidate.parentHash.toString klass := .control } logWitness globalWitnessLog bootWitness return { success := true childPid := childPid monitorHandle := createMonitorHandle childPid } /-- Monitor child kernel via lawful hardware witnesses. If child produces unlawful events, parent can intervene. -/] def startChildMonitoring (childPid : PID) (candidate : ChildCandidate) : IO Unit := do forever $ do -- Check child's lawful hardware log let childLog ← readChildWitnessLog childPid -- Look for concerning patterns let recentUnlawful := childLog.entries.filter (\w => !w.lawful) let recentHighCost := childLog.entries.filter (\w => w.cost > Q0_16.half) if recentUnlawful.size > 3 then -- Child is misbehaving consoleLog "[SELF-HOST] Child " ++ childPid.toString ++ " producing unlawful events" triggerWardenChildIntervention childPid candidate else if recentHighCost.size > 10 then -- Child is expensive consoleLog "[SELF-HOST] Child " ++ childPid.toString ++ " high cost events" -- May throttle or checkpoint sleep 1000 -- Check every 1000ms -- ═══════════════════════════════════════════════════════════════════════════ -- §5 Main Self-Host Interface -- ═══════════════════════════════════════════════════════════════════════════ /-- Public API: Attempt to self-host a new kernel generation. This is the entry point for the "make child" command. -/] @[export "gcl_self_host_attempt"] def gclSelfHostAttempt (targetConfig : TargetConfig) : IO SelfHostResult := do consoleLog "[SELF-HOST] Attempting to generate child kernel..." -- 1. Get current kernel source let parentSource ← loadCurrentKernelSource -- 2. Generate child candidate let candidate ← generateChildCandidate parentSource targetConfig if !candidate.valid then return { success := false stage := "generation" reason := "Child candidate generation failed" } -- 3. Run metaprobe gate let gateResult ← metaprobeGate candidate if !gateResult.passed then return { success := false stage := "metaprobe" reason := gateResult.reason witness := gateResult.witness } -- 4. Boot child let bootResult ← bootChildKernel candidate gateResult if !bootResult.success then return { success := false stage := "boot" reason := "Child boot failed" } -- Success! return { success := true childPid := bootResult.childPid generation := candidate.generation compileWitness := candidate.compileWitness gateWitness := gateResult.witness bootWitness := bootResult.witness } -- ═══════════════════════════════════════════════════════════════════════════ -- §6 Child Kernel States -- ═══════════════════════════════════════════════════════════════════════════ /-- Possible states of a child kernel in the hierarchy. -/] inductive ChildState where | Candidate -- Generated, not yet verified | Queued -- Waiting for metaprobe gate | Verifying -- Currently in metaprobe | Verified -- Passed metaprobe | Rejected -- Failed metaprobe | Booting -- Starting up | Running -- Active and supervised | Suspended -- Checkpointed/paused | Terminated -- Clean shutdown | Orphaned -- Parent died, needs adoption | Corrupted -- Detected misbehavior /-- State machine transitions with lawful witnesses. -/] def transitionChildState (child : ChildKernel) (newState : ChildState) : IO BindResult := do let oldState := child.state -- Verify transition is legal let legal := verifyStateTransition oldState newState if !legal then return mkUnlawful "Illegal state transition: " ++ oldState.toString ++ " → " ++ newState.toString .control -- Execute transition child.state := newState -- Compute cost let cost := computeTransitionCost oldState newState -- Generate witness return mkLawful cost ("STATE:" ++ oldState.toString ++ "→" ++ newState.toString) .control end GCLSelfHost