tomoaki/hakmem
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
2bd8da926762d4cd00148444a5eec49959cd7612
hakmem/core/box/front_gate_classifier.d

54 lines
2.2 KiB
D
Raw Normal View History

Box TLS-SLL + free boundary hardening: normalize C0–C6 to base (ptr-1) at free boundary; route all caches/freelists via base; replace remaining g_tls_sll_head direct writes with Box API (tls_sll_push/splice) in refill/magazine/ultra; keep C7 excluded. Fixes rbp=0xa0 free crash by preventing header overwrite and centralizing TLS-SLL invariants.
2025-11-10 16:48:20 +09:00
core/box/front_gate_classifier.o: core/box/front_gate_classifier.c \
core/box/front_gate_classifier.h core/box/../tiny_region_id.h \
Phase E3-FINAL: Fix Box API offset bugs - ALL classes now use correct offsets ## Root Cause Analysis (GPT5) **Physical Layout Constraints**: - Class 0: 8B = [1B header][7B payload] → offset 1 = 9B needed = ❌ IMPOSSIBLE - Class 1-6: >=16B = [1B header][15B+ payload] → offset 1 = ✅ POSSIBLE - Class 7: 1KB → offset 0 (compatibility) **Correct Specification**: - HAKMEM_TINY_HEADER_CLASSIDX != 0: - Class 0, 7: next at offset 0 (overwrites header when on freelist) - Class 1-6: next at offset 1 (after header) - HAKMEM_TINY_HEADER_CLASSIDX == 0: - All classes: next at offset 0 **Previous Bug**: - Attempted "ALL classes offset 1" unification - Class 0 with offset 1 caused immediate SEGV (9B > 8B block size) - Mixed 2-arg/3-arg API caused confusion ## Fixes Applied ### 1. Restored 3-Argument Box API (core/box/tiny_next_ptr_box.h) ```c // Correct signatures void tiny_next_write(int class_idx, void* base, void* next_value) void* tiny_next_read(int class_idx, const void* base) // Correct offset calculation size_t offset = (class_idx == 0 || class_idx == 7) ? 0 : 1; ``` ### 2. Updated 123+ Call Sites Across 34 Files - hakmem_tiny_hot_pop_v4.inc.h (4 locations) - hakmem_tiny_fastcache.inc.h (3 locations) - hakmem_tiny_tls_list.h (12 locations) - superslab_inline.h (5 locations) - tiny_fastcache.h (3 locations) - ptr_trace.h (macro definitions) - tls_sll_box.h (2 locations) - + 27 additional files Pattern: `tiny_next_read(base)` → `tiny_next_read(class_idx, base)` Pattern: `tiny_next_write(base, next)` → `tiny_next_write(class_idx, base, next)` ### 3. Added Sentinel Detection Guards - tiny_fast_push(): Block nodes with sentinel in ptr or ptr->next - tls_list_push(): Block nodes with sentinel in ptr or ptr->next - Defense-in-depth against remote free sentinel leakage ## Verification (GPT5 Report) **Test Command**: `./out/release/bench_random_mixed_hakmem --iterations=70000` **Results**: - ✅ Main loop completed successfully - ✅ Drain phase completed successfully - ✅ NO SEGV (previous crash at iteration 66151 is FIXED) - ℹ️ Final log: "tiny_alloc(1024) failed" is normal fallback to Mid/ACE layers **Analysis**: - Class 0 immediate SEGV: ✅ RESOLVED (correct offset 0 now used) - 66K iteration crash: ✅ RESOLVED (offset consistency fixed) - Box API conflicts: ✅ RESOLVED (unified 3-arg API) ## Technical Details ### Offset Logic Justification ``` Class 0: 8B block → next pointer (8B) fits ONLY at offset 0 Class 1: 16B block → next pointer (8B) fits at offset 1 (after 1B header) Class 2: 32B block → next pointer (8B) fits at offset 1 ... Class 6: 512B block → next pointer (8B) fits at offset 1 Class 7: 1024B block → offset 0 for legacy compatibility ``` ### Files Modified (Summary) - Core API: `box/tiny_next_ptr_box.h` - Hot paths: `hakmem_tiny_hot_pop*.inc.h`, `tiny_fastcache.h` - TLS layers: `hakmem_tiny_tls_list.h`, `hakmem_tiny_tls_ops.h` - SuperSlab: `superslab_inline.h`, `tiny_superslab_*.inc.h` - Refill: `hakmem_tiny_refill.inc.h`, `tiny_refill_opt.h` - Free paths: `tiny_free_magazine.inc.h`, `tiny_superslab_free.inc.h` - Documentation: Multiple Phase E3 reports ## Remaining Work None for Box API offset bugs - all structural issues resolved. Future enhancements (non-critical): - Periodic `grep -R '*(void**)' core/` to detect direct pointer access violations - Enforce Box API usage via static analysis - Document offset rationale in architecture docs 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-13 06:50:20 +09:00
core/box/../hakmem_build_flags.h core/box/../tiny_box_geometry.h \
core/box/../hakmem_tiny_superslab_constants.h \
core/box/../hakmem_tiny_config.h core/box/../ptr_track.h \
Code Cleanup: Remove false positives, redundant validations, and reduce verbose logging Following the C7 stride upgrade fix (commit 23c0d9541), this commit performs comprehensive cleanup to improve code quality and reduce debug noise. ## Changes ### 1. Disable False Positive Checks (tiny_nextptr.h) - **Disabled**: NXT_MISALIGN validation block with `#if 0` - **Reason**: Produces false positives due to slab base offsets (2048, 65536) not being stride-aligned, causing all blocks to appear "misaligned" - **TODO**: Reimplement to check stride DISTANCE between consecutive blocks instead of absolute alignment to stride boundaries ### 2. Remove Redundant Geometry Validations **hakmem_tiny_refill_p0.inc.h (P0 batch refill)** - Removed 25-line CARVE_GEOMETRY_FIX validation block - Replaced with NOTE explaining redundancy - **Reason**: Stride table is now correct in tiny_block_stride_for_class(), defense-in-depth validation adds overhead without benefit **ss_legacy_backend_box.c (legacy backend)** - Removed 18-line LEGACY_FIX_GEOMETRY validation block - Replaced with NOTE explaining redundancy - **Reason**: Shared_pool validates geometry at acquisition time ### 3. Reduce Verbose Logging **hakmem_shared_pool.c (sp_fix_geometry_if_needed)** - Made SP_FIX_GEOMETRY logging conditional on `!HAKMEM_BUILD_RELEASE` - **Reason**: Geometry fixes are expected during stride upgrades, no need to log in release builds ### 4. Verification - Build: ✅ Successful (LTO warnings expected) - Test: ✅ 10K iterations (1.87M ops/s, no crashes) - NXT_MISALIGN false positives: ✅ Eliminated ## Files Modified - core/tiny_nextptr.h - Disabled false positive NXT_MISALIGN check - core/hakmem_tiny_refill_p0.inc.h - Removed redundant CARVE validation - core/box/ss_legacy_backend_box.c - Removed redundant LEGACY validation - core/hakmem_shared_pool.c - Made SP_FIX_GEOMETRY logging debug-only ## Impact - **Code clarity**: Removed 43 lines of redundant validation code - **Debug noise**: Reduced false positive diagnostics - **Performance**: Eliminated overhead from redundant geometry checks - **Maintainability**: Single source of truth for geometry validation 🧹 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-21 23:00:24 +09:00
core/box/../hakmem_super_registry.h core/box/../hakmem_tiny_superslab.h \
Box TLS-SLL + free boundary hardening: normalize C0–C6 to base (ptr-1) at free boundary; route all caches/freelists via base; replace remaining g_tls_sll_head direct writes with Box API (tls_sll_push/splice) in refill/magazine/ultra; keep C7 excluded. Fixes rbp=0xa0 free crash by preventing header overwrite and centralizing TLS-SLL invariants.
2025-11-10 16:48:20 +09:00
core/box/../superslab/superslab_types.h \
core/hakmem_tiny_superslab_constants.h \
core/box/../superslab/superslab_inline.h \
Remove dead code: UltraHot, RingCache, FrontC23, Class5 Hotpath (cherry-picked from 225b6fcc7, conflicts resolved)
2025-11-26 12:33:49 +09:00
core/box/../superslab/superslab_types.h \
core/box/../superslab/../tiny_box_geometry.h \
core/box/../tiny_debug_ring.h core/box/../tiny_remote.h \
Refactor: Clean up SuperSlab shared pool code - Removed unused/disabled L0 cache implementation from core/hakmem_shared_pool.c. - Deleted stale backup file core/hakmem_tiny_superslab.c.bak. - Removed untracked and obsolete shared_pool source files.
2025-11-30 15:27:53 +09:00
core/box/../box/ss_addr_map_box.h \
core/box/../box/../hakmem_build_flags.h core/box/../hakmem_tiny.h \
core/box/../hakmem_trace.h core/box/../hakmem_tiny_mini_mag.h \
core/box/../tiny_debug_api.h core/box/../hakmem_tiny_superslab.h \
Code Cleanup: Remove false positives, redundant validations, and reduce verbose logging Following the C7 stride upgrade fix (commit 23c0d9541), this commit performs comprehensive cleanup to improve code quality and reduce debug noise. ## Changes ### 1. Disable False Positive Checks (tiny_nextptr.h) - **Disabled**: NXT_MISALIGN validation block with `#if 0` - **Reason**: Produces false positives due to slab base offsets (2048, 65536) not being stride-aligned, causing all blocks to appear "misaligned" - **TODO**: Reimplement to check stride DISTANCE between consecutive blocks instead of absolute alignment to stride boundaries ### 2. Remove Redundant Geometry Validations **hakmem_tiny_refill_p0.inc.h (P0 batch refill)** - Removed 25-line CARVE_GEOMETRY_FIX validation block - Replaced with NOTE explaining redundancy - **Reason**: Stride table is now correct in tiny_block_stride_for_class(), defense-in-depth validation adds overhead without benefit **ss_legacy_backend_box.c (legacy backend)** - Removed 18-line LEGACY_FIX_GEOMETRY validation block - Replaced with NOTE explaining redundancy - **Reason**: Shared_pool validates geometry at acquisition time ### 3. Reduce Verbose Logging **hakmem_shared_pool.c (sp_fix_geometry_if_needed)** - Made SP_FIX_GEOMETRY logging conditional on `!HAKMEM_BUILD_RELEASE` - **Reason**: Geometry fixes are expected during stride upgrades, no need to log in release builds ### 4. Verification - Build: ✅ Successful (LTO warnings expected) - Test: ✅ 10K iterations (1.87M ops/s, no crashes) - NXT_MISALIGN false positives: ✅ Eliminated ## Files Modified - core/tiny_nextptr.h - Disabled false positive NXT_MISALIGN check - core/hakmem_tiny_refill_p0.inc.h - Removed redundant CARVE validation - core/box/ss_legacy_backend_box.c - Removed redundant LEGACY validation - core/hakmem_shared_pool.c - Made SP_FIX_GEOMETRY logging debug-only ## Impact - **Code clarity**: Removed 43 lines of redundant validation code - **Debug noise**: Reduced false positive diagnostics - **Performance**: Eliminated overhead from redundant geometry checks - **Maintainability**: Single source of truth for geometry validation 🧹 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-21 23:00:24 +09:00
core/box/../superslab/superslab_inline.h \
tiny: fix TLS list next_off scope; default TLS_LIST=1; add sentinel guards; header-aware TLS ops; release quiet for benches
2025-11-11 10:00:36 +09:00
core/box/../hakmem_build_flags.h core/box/../hakmem_internal.h \
core/box/../hakmem.h core/box/../hakmem_config.h \
core/box/../hakmem_features.h core/box/../hakmem_sys.h \
ENV Cleanup Step 8: Gate HAKMEM_SUPER_LOOKUP_DEBUG in header Gate HAKMEM_SUPER_LOOKUP_DEBUG environment variable behind #if !HAKMEM_BUILD_RELEASE in hakmem_super_registry.h inline function. Changes: - Wrap s_dbg initialization in conditional compilation - Release builds use constant s_dbg = 0 for complete elimination - Debug logging in hak_super_lookup() now fully compiled out in release Performance: 30.3M ops/s Larson (stable, no regression) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-28 01:45:45 +09:00
core/box/../hakmem_whale.h core/box/../hakmem_tiny_config.h
Box TLS-SLL + free boundary hardening: normalize C0–C6 to base (ptr-1) at free boundary; route all caches/freelists via base; replace remaining g_tls_sll_head direct writes with Box API (tls_sll_push/splice) in refill/magazine/ultra; keep C7 excluded. Fixes rbp=0xa0 free crash by preventing header overwrite and centralizing TLS-SLL invariants.
2025-11-10 16:48:20 +09:00
core/box/front_gate_classifier.h:
core/box/../tiny_region_id.h:
core/box/../hakmem_build_flags.h:
Phase E3-FINAL: Fix Box API offset bugs - ALL classes now use correct offsets ## Root Cause Analysis (GPT5) **Physical Layout Constraints**: - Class 0: 8B = [1B header][7B payload] → offset 1 = 9B needed = ❌ IMPOSSIBLE - Class 1-6: >=16B = [1B header][15B+ payload] → offset 1 = ✅ POSSIBLE - Class 7: 1KB → offset 0 (compatibility) **Correct Specification**: - HAKMEM_TINY_HEADER_CLASSIDX != 0: - Class 0, 7: next at offset 0 (overwrites header when on freelist) - Class 1-6: next at offset 1 (after header) - HAKMEM_TINY_HEADER_CLASSIDX == 0: - All classes: next at offset 0 **Previous Bug**: - Attempted "ALL classes offset 1" unification - Class 0 with offset 1 caused immediate SEGV (9B > 8B block size) - Mixed 2-arg/3-arg API caused confusion ## Fixes Applied ### 1. Restored 3-Argument Box API (core/box/tiny_next_ptr_box.h) ```c // Correct signatures void tiny_next_write(int class_idx, void* base, void* next_value) void* tiny_next_read(int class_idx, const void* base) // Correct offset calculation size_t offset = (class_idx == 0 || class_idx == 7) ? 0 : 1; ``` ### 2. Updated 123+ Call Sites Across 34 Files - hakmem_tiny_hot_pop_v4.inc.h (4 locations) - hakmem_tiny_fastcache.inc.h (3 locations) - hakmem_tiny_tls_list.h (12 locations) - superslab_inline.h (5 locations) - tiny_fastcache.h (3 locations) - ptr_trace.h (macro definitions) - tls_sll_box.h (2 locations) - + 27 additional files Pattern: `tiny_next_read(base)` → `tiny_next_read(class_idx, base)` Pattern: `tiny_next_write(base, next)` → `tiny_next_write(class_idx, base, next)` ### 3. Added Sentinel Detection Guards - tiny_fast_push(): Block nodes with sentinel in ptr or ptr->next - tls_list_push(): Block nodes with sentinel in ptr or ptr->next - Defense-in-depth against remote free sentinel leakage ## Verification (GPT5 Report) **Test Command**: `./out/release/bench_random_mixed_hakmem --iterations=70000` **Results**: - ✅ Main loop completed successfully - ✅ Drain phase completed successfully - ✅ NO SEGV (previous crash at iteration 66151 is FIXED) - ℹ️ Final log: "tiny_alloc(1024) failed" is normal fallback to Mid/ACE layers **Analysis**: - Class 0 immediate SEGV: ✅ RESOLVED (correct offset 0 now used) - 66K iteration crash: ✅ RESOLVED (offset consistency fixed) - Box API conflicts: ✅ RESOLVED (unified 3-arg API) ## Technical Details ### Offset Logic Justification ``` Class 0: 8B block → next pointer (8B) fits ONLY at offset 0 Class 1: 16B block → next pointer (8B) fits at offset 1 (after 1B header) Class 2: 32B block → next pointer (8B) fits at offset 1 ... Class 6: 512B block → next pointer (8B) fits at offset 1 Class 7: 1024B block → offset 0 for legacy compatibility ``` ### Files Modified (Summary) - Core API: `box/tiny_next_ptr_box.h` - Hot paths: `hakmem_tiny_hot_pop*.inc.h`, `tiny_fastcache.h` - TLS layers: `hakmem_tiny_tls_list.h`, `hakmem_tiny_tls_ops.h` - SuperSlab: `superslab_inline.h`, `tiny_superslab_*.inc.h` - Refill: `hakmem_tiny_refill.inc.h`, `tiny_refill_opt.h` - Free paths: `tiny_free_magazine.inc.h`, `tiny_superslab_free.inc.h` - Documentation: Multiple Phase E3 reports ## Remaining Work None for Box API offset bugs - all structural issues resolved. Future enhancements (non-critical): - Periodic `grep -R '*(void**)' core/` to detect direct pointer access violations - Enforce Box API usage via static analysis - Document offset rationale in architecture docs 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-13 06:50:20 +09:00
core/box/../tiny_box_geometry.h:
core/box/../hakmem_tiny_superslab_constants.h:
core/box/../hakmem_tiny_config.h:
core/box/../ptr_track.h:
Code Cleanup: Remove false positives, redundant validations, and reduce verbose logging Following the C7 stride upgrade fix (commit 23c0d9541), this commit performs comprehensive cleanup to improve code quality and reduce debug noise. ## Changes ### 1. Disable False Positive Checks (tiny_nextptr.h) - **Disabled**: NXT_MISALIGN validation block with `#if 0` - **Reason**: Produces false positives due to slab base offsets (2048, 65536) not being stride-aligned, causing all blocks to appear "misaligned" - **TODO**: Reimplement to check stride DISTANCE between consecutive blocks instead of absolute alignment to stride boundaries ### 2. Remove Redundant Geometry Validations **hakmem_tiny_refill_p0.inc.h (P0 batch refill)** - Removed 25-line CARVE_GEOMETRY_FIX validation block - Replaced with NOTE explaining redundancy - **Reason**: Stride table is now correct in tiny_block_stride_for_class(), defense-in-depth validation adds overhead without benefit **ss_legacy_backend_box.c (legacy backend)** - Removed 18-line LEGACY_FIX_GEOMETRY validation block - Replaced with NOTE explaining redundancy - **Reason**: Shared_pool validates geometry at acquisition time ### 3. Reduce Verbose Logging **hakmem_shared_pool.c (sp_fix_geometry_if_needed)** - Made SP_FIX_GEOMETRY logging conditional on `!HAKMEM_BUILD_RELEASE` - **Reason**: Geometry fixes are expected during stride upgrades, no need to log in release builds ### 4. Verification - Build: ✅ Successful (LTO warnings expected) - Test: ✅ 10K iterations (1.87M ops/s, no crashes) - NXT_MISALIGN false positives: ✅ Eliminated ## Files Modified - core/tiny_nextptr.h - Disabled false positive NXT_MISALIGN check - core/hakmem_tiny_refill_p0.inc.h - Removed redundant CARVE validation - core/box/ss_legacy_backend_box.c - Removed redundant LEGACY validation - core/hakmem_shared_pool.c - Made SP_FIX_GEOMETRY logging debug-only ## Impact - **Code clarity**: Removed 43 lines of redundant validation code - **Debug noise**: Reduced false positive diagnostics - **Performance**: Eliminated overhead from redundant geometry checks - **Maintainability**: Single source of truth for geometry validation 🧹 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-21 23:00:24 +09:00
core/box/../hakmem_super_registry.h:
Box TLS-SLL + free boundary hardening: normalize C0–C6 to base (ptr-1) at free boundary; route all caches/freelists via base; replace remaining g_tls_sll_head direct writes with Box API (tls_sll_push/splice) in refill/magazine/ultra; keep C7 excluded. Fixes rbp=0xa0 free crash by preventing header overwrite and centralizing TLS-SLL invariants.
2025-11-10 16:48:20 +09:00
core/box/../hakmem_tiny_superslab.h:
core/box/../superslab/superslab_types.h:
core/hakmem_tiny_superslab_constants.h:
core/box/../superslab/superslab_inline.h:
core/box/../superslab/superslab_types.h:
Remove dead code: UltraHot, RingCache, FrontC23, Class5 Hotpath (cherry-picked from 225b6fcc7, conflicts resolved)
2025-11-26 12:33:49 +09:00
core/box/../superslab/../tiny_box_geometry.h:
Box TLS-SLL + free boundary hardening: normalize C0–C6 to base (ptr-1) at free boundary; route all caches/freelists via base; replace remaining g_tls_sll_head direct writes with Box API (tls_sll_push/splice) in refill/magazine/ultra; keep C7 excluded. Fixes rbp=0xa0 free crash by preventing header overwrite and centralizing TLS-SLL invariants.
2025-11-10 16:48:20 +09:00
core/box/../tiny_debug_ring.h:
core/box/../tiny_remote.h:
Refactor: Clean up SuperSlab shared pool code - Removed unused/disabled L0 cache implementation from core/hakmem_shared_pool.c. - Deleted stale backup file core/hakmem_tiny_superslab.c.bak. - Removed untracked and obsolete shared_pool source files.
2025-11-30 15:27:53 +09:00
core/box/../box/ss_addr_map_box.h:
core/box/../box/../hakmem_build_flags.h:
ENV Cleanup Step 8: Gate HAKMEM_SUPER_LOOKUP_DEBUG in header Gate HAKMEM_SUPER_LOOKUP_DEBUG environment variable behind #if !HAKMEM_BUILD_RELEASE in hakmem_super_registry.h inline function. Changes: - Wrap s_dbg initialization in conditional compilation - Release builds use constant s_dbg = 0 for complete elimination - Debug logging in hak_super_lookup() now fully compiled out in release Performance: 30.3M ops/s Larson (stable, no regression) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-28 01:45:45 +09:00
core/box/../hakmem_tiny.h:
core/box/../hakmem_trace.h:
core/box/../hakmem_tiny_mini_mag.h:
Cleanup: Add tiny_debug_api.h to eliminate guard/failfast implicit warnings Created central header for debug instrumentation API to fix implicit function declaration warnings across the codebase. Changes: 1. Created core/tiny_debug_api.h - Declares guard system API (3 functions) - Declares failfast debugging API (3 functions) - Uses forward declarations for SuperSlab/TinySlabMeta 2. Updated 3 files to include tiny_debug_api.h: - core/tiny_region_id.h (removed inline externs) - core/hakmem_tiny_tls_ops.h - core/tiny_superslab_alloc.inc.h Warnings eliminated (6 of 11 total): ✅ tiny_guard_is_enabled() ✅ tiny_guard_on_alloc() ✅ tiny_guard_on_invalid() ✅ tiny_failfast_log() ✅ tiny_failfast_abort_ptr() ✅ tiny_refill_failfast_level() Remaining warnings (deferred to P1): - ss_active_add (2 occurrences) - expand_superslab_head - hkm_ace_set_tls_capacity - smallmid_backend_free Impact: - Cleaner build output - Better type safety for debug functions - No behavior changes 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-29 06:47:13 +09:00
core/box/../tiny_debug_api.h:
Code Cleanup: Remove false positives, redundant validations, and reduce verbose logging Following the C7 stride upgrade fix (commit 23c0d9541), this commit performs comprehensive cleanup to improve code quality and reduce debug noise. ## Changes ### 1. Disable False Positive Checks (tiny_nextptr.h) - **Disabled**: NXT_MISALIGN validation block with `#if 0` - **Reason**: Produces false positives due to slab base offsets (2048, 65536) not being stride-aligned, causing all blocks to appear "misaligned" - **TODO**: Reimplement to check stride DISTANCE between consecutive blocks instead of absolute alignment to stride boundaries ### 2. Remove Redundant Geometry Validations **hakmem_tiny_refill_p0.inc.h (P0 batch refill)** - Removed 25-line CARVE_GEOMETRY_FIX validation block - Replaced with NOTE explaining redundancy - **Reason**: Stride table is now correct in tiny_block_stride_for_class(), defense-in-depth validation adds overhead without benefit **ss_legacy_backend_box.c (legacy backend)** - Removed 18-line LEGACY_FIX_GEOMETRY validation block - Replaced with NOTE explaining redundancy - **Reason**: Shared_pool validates geometry at acquisition time ### 3. Reduce Verbose Logging **hakmem_shared_pool.c (sp_fix_geometry_if_needed)** - Made SP_FIX_GEOMETRY logging conditional on `!HAKMEM_BUILD_RELEASE` - **Reason**: Geometry fixes are expected during stride upgrades, no need to log in release builds ### 4. Verification - Build: ✅ Successful (LTO warnings expected) - Test: ✅ 10K iterations (1.87M ops/s, no crashes) - NXT_MISALIGN false positives: ✅ Eliminated ## Files Modified - core/tiny_nextptr.h - Disabled false positive NXT_MISALIGN check - core/hakmem_tiny_refill_p0.inc.h - Removed redundant CARVE validation - core/box/ss_legacy_backend_box.c - Removed redundant LEGACY validation - core/hakmem_shared_pool.c - Made SP_FIX_GEOMETRY logging debug-only ## Impact - **Code clarity**: Removed 43 lines of redundant validation code - **Debug noise**: Reduced false positive diagnostics - **Performance**: Eliminated overhead from redundant geometry checks - **Maintainability**: Single source of truth for geometry validation 🧹 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-21 23:00:24 +09:00
core/box/../hakmem_tiny_superslab.h:
Box TLS-SLL + free boundary hardening: normalize C0–C6 to base (ptr-1) at free boundary; route all caches/freelists via base; replace remaining g_tls_sll_head direct writes with Box API (tls_sll_push/splice) in refill/magazine/ultra; keep C7 excluded. Fixes rbp=0xa0 free crash by preventing header overwrite and centralizing TLS-SLL invariants.
2025-11-10 16:48:20 +09:00
core/box/../superslab/superslab_inline.h:
core/box/../hakmem_build_flags.h:
tiny: fix TLS list next_off scope; default TLS_LIST=1; add sentinel guards; header-aware TLS ops; release quiet for benches
2025-11-11 10:00:36 +09:00
core/box/../hakmem_internal.h:
core/box/../hakmem.h:
core/box/../hakmem_config.h:
core/box/../hakmem_features.h:
core/box/../hakmem_sys.h:
core/box/../hakmem_whale.h:
Box TLS-SLL + free boundary hardening: normalize C0–C6 to base (ptr-1) at free boundary; route all caches/freelists via base; replace remaining g_tls_sll_head direct writes with Box API (tls_sll_push/splice) in refill/magazine/ultra; keep C7 excluded. Fixes rbp=0xa0 free crash by preventing header overwrite and centralizing TLS-SLL invariants.
2025-11-10 16:48:20 +09:00
core/box/../hakmem_tiny_config.h:
Reference in New Issue Copy Permalink