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Phase 7 + Pool TLS 1.5b stabilization:\n- Add build hygiene (dep tracking, flag consistency, print-flags)\n- Add build.sh + verify_build.sh (unified recipe, freshness check)\n- Quiet verbose logs behind HAKMEM_DEBUG_VERBOSE\n- A/B free safety via HAKMEM_TINY_SAFE_FREE (mincore strict vs boundary)\n- Tweak Tiny header path to reduce noise; Pool TLS free guard optimized\n- Fix mimalloc link retention (--no-as-needed + force symbol)\n- Add docs/BUILD_PHASE7_POOL_TLS.md (cheatsheet)

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Moe Charm (CI)
2025-11-09 11:50:18 +09:00
parent cf5bdf9c0a
commit 0da9f8cba3
10 changed files with 349 additions and 48 deletions
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44
core/box/hak_free_api.inc.h
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@ -78,6 +78,37 @@ void hak_free_at(void* ptr, size_t size, hak_callsite_t site) {
return;
}
#ifdef HAKMEM_POOL_TLS_PHASE1
// Phase 1: Try Pool TLS free FIRST for 8KB-52KB range
// CRITICAL: Must come before Phase 7 Tiny to avoid magic mismatch SEGV
// Pool TLS uses magic 0xb0, Tiny uses magic 0xa0 - must distinguish!
{
void* header_addr = (char*)ptr - 1;
// Safety vs performance trade-off:
// - If HAKMEM_TINY_SAFE_FREE=1 (strict), validate with mincore() always
// - Else (default), only validate on page-boundary risk to avoid syscall cost
#if HAKMEM_TINY_SAFE_FREE
if (!hak_is_memory_readable(header_addr)) { goto skip_pool_tls; }
#else
uintptr_t off = (uintptr_t)header_addr & 0xFFF;
if (__builtin_expect(off == 0, 0)) {
if (!hak_is_memory_readable(header_addr)) { goto skip_pool_tls; }
}
#endif
uint8_t header = *(uint8_t*)header_addr;
if ((header & 0xF0) == POOL_MAGIC) {
pool_free(ptr);
hak_free_route_log("pool_tls", ptr);
goto done;
}
// Not Pool TLS - fall through to other paths
}
skip_pool_tls:
#endif
#if HAKMEM_TINY_HEADER_CLASSIDX
// Phase 7: Dual-header dispatch (1-byte Tiny header OR 16-byte malloc/mmap header)
//
@ -135,19 +166,6 @@ slow_path_after_step2:;
#endif
#endif
#ifdef HAKMEM_POOL_TLS_PHASE1
// Phase 1: Try Pool TLS free for 8KB-52KB range
// This uses 1-byte headers like Tiny for O(1) free
{
uint8_t header = *((uint8_t*)ptr - 1);
if ((header & 0xF0) == POOL_MAGIC) {
pool_free(ptr);
hak_free_route_log("pool_tls", ptr);
goto done;
}
}
#endif
// SS-first free（既定ON）
#if !HAKMEM_TINY_HEADER_CLASSIDX
// Only run SS-first if Phase 7 header-based free is not enabled