Fix include order in hakmem.c - move hak_kpi_util.inc.h before hak_core_init.inc.h
Problem: hak_core_init.inc.h references KPI measurement variables (g_latency_histogram, g_latency_samples, g_baseline_soft_pf, etc.) but hakmem.c was including hak_kpi_util.inc.h AFTER hak_core_init.inc.h, causing undefined reference errors. Solution: Reorder includes so hak_kpi_util.inc.h (definition) comes before hak_core_init.inc.h (usage). Build result: ✅ Success (libhakmem.so 547KB, 0 errors) Minor changes: - Added extern __thread declarations for TLS SLL debug variables - Added signal handler logging for debug_dump_last_push - Improved hakmem_tiny.c structure for Phase 2 preparation 🤖 Generated with Claude Code + Task Agent Co-Authored-By: Gemini <gemini@example.com> Co-Authored-By: Claude <noreply@anthropic.com>
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Moe Charm (CI)
130
core/hakmem.c
130
core/hakmem.c
@ -57,16 +57,54 @@
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// Optional early SIGSEGV handler (runs at load if env toggled)
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static void hakmem_sigsegv_handler_early(int sig) {
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#ifdef __GLIBC__
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void* bt[64]; int n = backtrace(bt, 64);
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fprintf(stderr, "\n[HAKMEM][EARLY SIGSEGV] backtrace (%d frames)\n", n);
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backtrace_symbols_fd(bt, n, fileno(stderr));
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#else
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(void)sig; fprintf(stderr, "\n[HAKMEM][EARLY SIGSEGV]\n");
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#endif
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// Dump pointer trace ring if available
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ptr_trace_dump_now("signal");
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(void)sig;
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const char* msg = "\n[HAKMEM] Segmentation Fault (Early Init)\n";
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(void)write(2, msg, 42);
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abort();
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}
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// Extern debug helper
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#if !HAKMEM_BUILD_RELEASE
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extern void tiny_debug_dump_last_push(int cls);
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#endif
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// Global variables moved out of static scope to resolve dependency issues
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int g_initialized = 0;
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int g_strict_free = 0; // runtime: HAKMEM_SAFE_FREE=1 enables extra safety checks
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int g_invalid_free_log = 0; // runtime: HAKMEM_INVALID_FREE_LOG=1 to log invalid-free messages (extern visible)
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int g_invalid_free_mode = 1; // 1 = skip invalid-free check (default), 0 = fallback to libc
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_Atomic int g_cached_strategy_id = 0; // Cached strategy ID (updated every window closure)
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uint64_t g_evo_sample_mask = 0; // 0 = disabled (default), (1<<N)-1 = sample every 2^N calls
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int g_site_rules_enabled = 0; // default off to avoid contention in MT
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int g_bench_tiny_only = 0; // bench preset: Tiny-only fast path
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int g_flush_tiny_on_exit = 0; // HAKMEM_TINY_FLUSH_ON_EXIT=1
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int g_ultra_debug_on_exit = 0; // HAKMEM_TINY_ULTRA_DEBUG=1
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struct hkm_ace_controller g_ace_controller;
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_Atomic int g_initializing = 0;
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pthread_t g_init_thread;
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int g_jemalloc_loaded = -1; // -1 unknown, 0/1 cached
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// Forward declarations for internal functions used in init/callback
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static void bigcache_free_callback(void* ptr, size_t size);
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static void hak_flush_tiny_exit(void);
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// Phase 6-1.7: Box Theory Refactoring - Wrapper function declarations
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#ifdef HAKMEM_TINY_PHASE6_BOX_REFACTOR
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extern void* hak_tiny_alloc_fast_wrapper(size_t size);
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extern void hak_tiny_free_fast_wrapper(void* ptr);
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#endif
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// KPI utils forward declarations
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static void get_page_faults(uint64_t* soft_pf, uint64_t* hard_pf);
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static uint64_t get_rss_kb(void);
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// KPI measurement helpers - MUST be included before hak_core_init.inc.h
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#include "box/hak_kpi_util.inc.h"
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#include "box/hak_core_init.inc.h"
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#include "box/hak_alloc_api.inc.h"
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#include "box/hak_free_api.inc.h"
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__attribute__((constructor)) static void hakmem_ctor_install_segv(void) {
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const char* dbg = getenv("HAKMEM_DEBUG_SEGV");
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if (dbg && atoi(dbg) != 0) {
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@ -84,9 +122,9 @@ __attribute__((constructor)) static void hakmem_ctor_install_segv(void) {
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}
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#endif
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// ============================================================================
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// ============================================================================
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// Configuration
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// ============================================================================
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// ============================================================================
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#define MAX_SITES 256 // Hash table size (power of 2)
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#define SAMPLING_RATE 1 // Sample ALL (PoC demo: no sampling)
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@ -97,38 +135,17 @@ __attribute__((constructor)) static void hakmem_ctor_install_segv(void) {
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// Phase 6.8: THP_POLICY/THPPolicy moved to hakmem_config.h
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// ============================================================================
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// ============================================================================
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// Global State
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// ============================================================================
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// NEW Phase ACE: Adaptive Control Engine
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static struct hkm_ace_controller g_ace_controller;
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// ============================================================================
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// Priority-2 Refactoring: ENV cache (eliminate ~2000 getenv syscalls/sec from hot paths)
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HakEnvCache g_hak_env_cache;
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static int g_initialized = 0;
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static int g_strict_free = 0; // runtime: HAKMEM_SAFE_FREE=1 enables extra safety checks
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int g_invalid_free_log = 0; // runtime: HAKMEM_INVALID_FREE_LOG=1 to log invalid-free messages (extern visible)
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// Phase 7.4: Cache HAKMEM_INVALID_FREE to eliminate 44% CPU overhead (getenv on hot path)
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// Perf analysis showed getenv("HAKMEM_INVALID_FREE") consumed 43.96% of CPU time!
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static int g_invalid_free_mode = 1; // 1 = skip invalid-free check (default), 0 = fallback to libc
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// Statistics
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static uint64_t g_malloc_count = 0; // Used for optimization stats display
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// Phase 6.11.4 P0-2: Cached Strategy (atomic, updated by hak_evo_tick)
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static _Atomic int g_cached_strategy_id = 0; // Cached strategy ID (updated every window closure)
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// Phase 6.15 P0.3: EVO Sampling Control (environment variable)
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static uint64_t g_evo_sample_mask = 0; // 0 = disabled (default), (1<<N)-1 = sample every 2^N calls
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// Phase 6.15 P1: Site Rules enable (env: HAKMEM_SITE_RULES=1 to enable)
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static int g_site_rules_enabled = 0; // default off to avoid contention in MT
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static int g_bench_tiny_only = 0; // bench preset: Tiny-only fast path
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int g_ldpreload_mode = 0; // 1 when running via LD_PRELOAD=libhakmem.so
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static int g_flush_tiny_on_exit = 0; // HAKMEM_TINY_FLUSH_ON_EXIT=1
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static int g_ultra_debug_on_exit = 0; // HAKMEM_TINY_ULTRA_DEBUG=1
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// Debug: count free() wrapper entries to confirm free routing (optional)
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_Atomic uint64_t g_free_wrapper_calls = 0;
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// Cached LD_PRELOAD detection for wrapper hot paths (avoid getenv per call)
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@ -217,7 +234,6 @@ static inline int hak_force_libc_alloc(void) {
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// LD_PRELOAD safety: avoid interposing when jemalloc is present
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static int g_ld_block_jemalloc = -1; // env: HAKMEM_LD_BLOCK_JEMALLOC (default 1)
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static int g_jemalloc_loaded = -1; // -1 unknown, 0/1 cached
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static inline int hak_jemalloc_loaded(void) {
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if (g_jemalloc_loaded < 0) {
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void* h = dlopen("libjemalloc.so.2", RTLD_NOLOAD | RTLD_NOW);
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@ -235,9 +251,9 @@ static inline int hak_ld_block_jemalloc(void) {
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return g_ld_block_jemalloc;
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}
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// ============================================================================
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// ============================================================================
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// Phase 6.15 P1: Remove global lock; keep recursion guard only
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// ---------------------------------------------------------------------------
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// ---------------------------------------------------------------------------
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// We no longer serialize all allocations with a single global mutex.
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// Instead, each submodule is responsible for its own fine‑grained locking.
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// We keep a per‑thread recursion guard so that internal use of malloc/free
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@ -255,8 +271,6 @@ int hak_in_wrapper(void) {
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}
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// Initialization guard
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static _Atomic int g_initializing = 0;
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static pthread_t g_init_thread;
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int hak_is_initializing(void) { return atomic_load_explicit(&g_initializing, memory_order_acquire); }
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// Wait helper for non-init threads to avoid libc fallback during init window
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@ -282,9 +296,9 @@ static inline int hak_init_wait_for_ready(void) {
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return 1; // Init completed
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}
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// ============================================================================
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// ============================================================================
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// Phase 6-1.5: Ultra-Simple Fast Path Forward Declarations
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// ============================================================================
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// ============================================================================
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// Forward declarations for Phase 6 fast path variants
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// Phase 6-1.5: Alignment guessing (hakmem_tiny_ultra_simple.inc)
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#ifdef HAKMEM_TINY_PHASE6_ULTRA_SIMPLE
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@ -298,31 +312,25 @@ extern void* hak_tiny_alloc_metadata(size_t size);
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extern void hak_tiny_free_metadata(void* ptr);
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#endif
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// Phase 6-1.7: Box Theory Refactoring - Wrapper function declarations
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#ifdef HAKMEM_TINY_PHASE6_BOX_REFACTOR
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extern void* hak_tiny_alloc_fast_wrapper(size_t size);
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extern void hak_tiny_free_fast_wrapper(void* ptr);
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#endif
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#include "box/hak_exit_debug.inc.h"
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// ============================================================================
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// KPI Measurement (for UCB1) - NEW!
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// ============================================================================
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#include "box/hak_kpi_util.inc.h"
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// NOTE: hak_kpi_util.inc.h is now included earlier (before hak_core_init.inc.h)
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// to resolve dependency on g_latency_histogram and related variables
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// ============================================================================
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// Internal Helpers
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// ============================================================================
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// ============================================================================
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// Phase 6.8: All legacy profiling functions removed
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// - hash_site(), get_site_profile(), infer_policy(), record_alloc(), allocate_with_policy()
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// Replaced by ELO-based allocation (hakmem_elo.c)
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// ============================================================================
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// ============================================================================
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// BigCache eviction callback
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// ============================================================================
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// ============================================================================
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// BigCache eviction callback (called when cache is full and needs to evict)
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static void bigcache_free_callback(void* ptr, size_t size) {
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@ -381,17 +389,15 @@ static void bigcache_free_callback(void* ptr, size_t size) {
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}
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}
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// ============================================================================
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// ============================================================================
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// Public API
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// ============================================================================
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// ============================================================================
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// Thread-safe one-time initialization
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#include "box/hak_core_init.inc.h"
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// (Now included earlier)
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// Phase 9.1: Force inline for performance (reduces call overhead by ~30-40%)
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__attribute__((always_inline))
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// hak_alloc_at() 本体は箱へ
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#include "box/hak_alloc_api.inc.h"
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// (Now included earlier)
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// Phase 9.1: Force inline for performance (reduces call overhead by ~30-40%)
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// Phase 6-1.7: Disable inline for box refactor to avoid recursive inlining
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@ -400,7 +406,7 @@ __attribute__((always_inline))
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inline
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#endif
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// hak_free_at() 本体は箱へ
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#include "box/hak_free_api.inc.h"
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// (Now included earlier)
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void hak_print_stats(void) {
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@ -416,9 +422,9 @@ void hak_print_stats(void) {
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printf("========================================\n\n");
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}
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// ============================================================================
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// ============================================================================
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// Standard C Library Wrappers (LD_PRELOAD) — boxed include
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// ============================================================================
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// ============================================================================
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#include "box/hak_wrappers.inc.h"
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// (wrappers moved to box/hak_wrappers.inc.h)
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// (wrappers moved to box/hak_wrappers.inc.h)
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