[NFC][Asan] Reformat some allocator code

Author: vitalybuka

compiler-rt/lib/asan/asan_allocator.cpp

@@ -73,13 +73,13 @@ static const uptr kAllocBegMagic = 0xCC6E96B9;
 struct ChunkHeader {
   // 1-st 8 bytes.
   atomic_uint8_t chunk_state;
-  u32 alloc_tid         : 24;
+  u32 alloc_tid : 24;
 
-  u32 free_tid          : 24;
-  u32 from_memalign     : 1;
-  u32 alloc_type        : 2;
-  u32 rz_log            : 3;
-  u32 lsan_tag          : 2;
+  u32 free_tid : 24;
+  u32 from_memalign : 1;
+  u32 alloc_type : 2;
+  u32 rz_log : 3;
+  u32 lsan_tag : 2;
   // 2-nd 8 bytes
   // This field is used for small sizes. For large sizes it is equal to
   // SizeClassMap::kMaxSize and the actual size is stored in the
@@ -109,7 +109,7 @@ enum {
   // The chunk is allocated and not yet freed.
   CHUNK_ALLOCATED = 2,
   // The chunk was freed and put into quarantine zone.
-  CHUNK_QUARANTINE = 3
+  CHUNK_QUARANTINE = 3,
 };
 
 struct AsanChunk: ChunkBase {
@@ -118,7 +118,7 @@ struct AsanChunk: ChunkBase {
     if (user_requested_size != SizeClassMap::kMaxSize)
       return user_requested_size;
     return *reinterpret_cast<uptr *>(
-               get_allocator().GetMetaData(AllocBeg(locked_version)));
+        get_allocator().GetMetaData(AllocBeg(locked_version)));
   }
   void *AllocBeg(bool locked_version = false) {
     if (from_memalign) {
@@ -519,7 +519,7 @@ struct Allocator {
     m->free_tid = kInvalidTid;
     m->from_memalign = user_beg != beg_plus_redzone;
     if (alloc_beg != chunk_beg) {
-      CHECK_LE(alloc_beg+ 2 * sizeof(uptr), chunk_beg);
+      CHECK_LE(alloc_beg + 2 * sizeof(uptr), chunk_beg);
       reinterpret_cast<uptr *>(alloc_beg)[0] = kAllocBegMagic;
       reinterpret_cast<uptr *>(alloc_beg)[1] = chunk_beg;
     }
@@ -735,7 +735,8 @@ struct Allocator {
 
   // Assumes alloc_beg == allocator.GetBlockBegin(alloc_beg).
   AsanChunk *GetAsanChunk(void *alloc_beg) {
-    if (!alloc_beg) return nullptr;
+    if (!alloc_beg)
+      return nullptr;
     if (!allocator.FromPrimary(alloc_beg)) {
       uptr *meta = reinterpret_cast<uptr *>(allocator.GetMetaData(alloc_beg));
       AsanChunk *m = reinterpret_cast<AsanChunk *>(meta[1]);
@@ -751,11 +752,13 @@ struct Allocator {
   }
 
   AsanChunk *GetAsanChunkDebug(void *alloc_beg) {
-    if (!alloc_beg) return nullptr;
+    if (!alloc_beg)
+      return nullptr;
     if (!allocator.FromPrimary(alloc_beg)) {
       uptr *meta = reinterpret_cast<uptr *>(allocator.GetMetaData(alloc_beg));
       AsanChunk *m = reinterpret_cast<AsanChunk *>(meta[1]);
-      Printf("GetAsanChunkDebug1 alloc_beg %p meta %p m %p\n", alloc_beg, meta, m);
+      Printf("GetAsanChunkDebug1 alloc_beg %p meta %p m %p\n", alloc_beg, meta,
+             m);
       return m;
     }
     uptr *alloc_magic = reinterpret_cast<uptr *>(alloc_beg);
@@ -768,7 +771,6 @@ struct Allocator {
     return reinterpret_cast<AsanChunk *>(alloc_beg);
   }
 
-
   AsanChunk *GetAsanChunkByAddr(uptr p) {
     void *alloc_beg = allocator.GetBlockBegin(reinterpret_cast<void *>(p));
     return GetAsanChunk(alloc_beg);
@@ -784,7 +786,8 @@ struct Allocator {
   AsanChunk *GetAsanChunkByAddrFastLockedDebug(uptr p) {
     void *alloc_beg =
         allocator.GetBlockBeginFastLockedDebug(reinterpret_cast<void *>(p));
-    Printf("GetAsanChunkByAddrFastLockedDebug p %p alloc_beg %p\n", p, alloc_beg);
+    Printf("GetAsanChunkByAddrFastLockedDebug p %p alloc_beg %p\n", p,
+           alloc_beg);
     return GetAsanChunkDebug(alloc_beg);
   }
 
@@ -1055,7 +1058,7 @@ void AsanSoftRssLimitExceededCallback(bool limit_exceeded) {
   instance.SetRssLimitExceeded(limit_exceeded);
 }
 
-} // namespace __asan
+}  // namespace __asan
 
 // --- Implementation of LSan-specific functions --- {{{1
 namespace __lsan {
@@ -1092,7 +1095,8 @@ extern "C" SANITIZER_WEAK_ATTRIBUTE const char *__lsan_current_stage;
 
 void GetUserBeginDebug(uptr chunk) {
   Printf("GetUserBeginDebug1 chunk %p\n", chunk);
-  __asan::AsanChunk *m = __asan::instance.GetAsanChunkByAddrFastLockedDebug(chunk);
+  __asan::AsanChunk *m =
+      __asan::instance.GetAsanChunkByAddrFastLockedDebug(chunk);
   Printf("GetUserBeginDebug2 m     %p\n", m);
 }
 

compiler-rt/lib/sanitizer_common/sanitizer_allocator_combined.h

@@ -148,7 +148,6 @@ class CombinedAllocator {
     return secondary_.GetBlockBeginFastLocked(p);
   }
 
-
   uptr GetActuallyAllocatedSize(void *p) {
     if (primary_.PointerIsMine(p))
       return primary_.GetActuallyAllocatedSize(p);

compiler-rt/lib/sanitizer_common/sanitizer_allocator_primary64.h

@@ -203,7 +203,8 @@ class SizeClassAllocator64 {
     uptr class_id = GetSizeClass(p);
     uptr size = ClassIdToSize(class_id);
     Printf("GetBlockBeginDebug1 p %p class_id %p size %p\n", p, class_id, size);
-    if (!size) return nullptr;
+    if (!size)
+      return nullptr;
     uptr chunk_idx = GetChunkIdx((uptr)p, size);
     uptr reg_beg = GetRegionBegin(p);
     uptr beg = chunk_idx * size;
@@ -212,16 +213,16 @@ class SizeClassAllocator64 {
         "GetBlockBeginDebug2 chunk_idx %p reg_beg %p beg %p next_beg %p "
         "kNumClasses %p\n",
         chunk_idx, reg_beg, beg, next_beg, kNumClasses);
-    if (class_id >= kNumClasses) return nullptr;
+    if (class_id >= kNumClasses)
+      return nullptr;
     const RegionInfo *region = AddressSpaceView::Load(GetRegionInfo(class_id));
     Printf("GetBlockBeginDebug3 region %p region->mapped_user %p\n", region,
            region->mapped_user);
     if (region->mapped_user >= next_beg)
-      return reinterpret_cast<void*>(reg_beg + beg);
+      return reinterpret_cast<void *>(reg_beg + beg);
     return nullptr;
   }
 
-
   uptr GetActuallyAllocatedSize(void *p) {
     CHECK(PointerIsMine(p));
     return ClassIdToSize(GetSizeClass(p));