[Sanitizer] Remove CombinedAllocator::Allocate's 'cleared' parameter

Summary:
CombinedAllocator::Allocate cleared parameter is not used anywhere and
seem to be obsolete.

Reviewers: eugenis

Subscribers: llvm-commits, kubamracek

Differential Revision: https://reviews.llvm.org/D34289

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@305590 91177308-0d34-0410-b5e6-96231b3b80d8

Change-Id: I57958f6ea291bb31027070f93ad652598c69d1fe

diff --git a/libsanitizer/asan/asan_allocator.cc b/libsanitizer/asan/asan_allocator.cc
index b6e2cfa..2dac064 100644 (file)
--- a/libsanitizer/asan/asan_allocator.cc
+++ b/libsanitizer/asan/asan_allocator.cc
@@ -158,7 +158,7 @@ struct QuarantineCallback {
   }
 
   void *Allocate(uptr size) {
-    return get_allocator().Allocate(cache_, size, 1, false);
+    return get_allocator().Allocate(cache_, size, 1);
   }
 
   void Deallocate(void *p) {
@@ -411,13 +411,11 @@ struct Allocator {
     void *allocated;
     if (t) {
       AllocatorCache *cache = GetAllocatorCache(&t->malloc_storage());
-      allocated =
-          allocator.Allocate(cache, needed_size, 8, false);
+      allocated = allocator.Allocate(cache, needed_size, 8);
     } else {
       SpinMutexLock l(&fallback_mutex);
       AllocatorCache *cache = &fallback_allocator_cache;
-      allocated =
-          allocator.Allocate(cache, needed_size, 8, false);
+      allocated = allocator.Allocate(cache, needed_size, 8);
     }
 
     if (!allocated) return allocator.ReturnNullOrDieOnOOM();

diff --git a/libsanitizer/lsan/lsan_allocator.cc b/libsanitizer/lsan/lsan_allocator.cc
index 4cd4509..ef0ca19 100644 (file)
--- a/libsanitizer/lsan/lsan_allocator.cc
+++ b/libsanitizer/lsan/lsan_allocator.cc
@@ -117,7 +117,7 @@ void *Allocate(const StackTrace &stack, uptr size, uptr alignment,
     Report("WARNING: LeakSanitizer failed to allocate %zu bytes\n", size);
     return nullptr;
   }
-  void *p = allocator.Allocate(&cache, size, alignment, false);
+  void *p = allocator.Allocate(&cache, size, alignment);
   // Do not rely on the allocator to clear the memory (it's slow).
   if (cleared && allocator.FromPrimary(p))
     memset(p, 0, size);

diff --git a/libsanitizer/sanitizer_common/sanitizer_allocator.cc b/libsanitizer/sanitizer_common/sanitizer_allocator.cc
index e2365bf..156792c 100644 (file)
--- a/libsanitizer/sanitizer_common/sanitizer_allocator.cc
+++ b/libsanitizer/sanitizer_common/sanitizer_allocator.cc
@@ -106,9 +106,9 @@ static void *RawInternalAlloc(uptr size, InternalAllocatorCache *cache,
   if (cache == 0) {
     SpinMutexLock l(&internal_allocator_cache_mu);
     return internal_allocator()->Allocate(&internal_allocator_cache, size,
-                                          alignment, false);
+                                          alignment);
   }
-  return internal_allocator()->Allocate(cache, size, alignment, false);
+  return internal_allocator()->Allocate(cache, size, alignment);
 }
 
 static void *RawInternalRealloc(void *ptr, uptr size,

diff --git a/libsanitizer/sanitizer_common/sanitizer_allocator_combined.h b/libsanitizer/sanitizer_common/sanitizer_allocator_combined.h
index 3f64324..216a6fd 100644 (file)
--- a/libsanitizer/sanitizer_common/sanitizer_allocator_combined.h
+++ b/libsanitizer/sanitizer_common/sanitizer_allocator_combined.h
@@ -40,8 +40,7 @@ class CombinedAllocator {
     InitCommon(may_return_null, release_to_os_interval_ms);
   }
 
-  void *Allocate(AllocatorCache *cache, uptr size, uptr alignment,
-                 bool cleared = false) {
+  void *Allocate(AllocatorCache *cache, uptr size, uptr alignment) {
     // Returning 0 on malloc(0) may break a lot of code.
     if (size == 0)
       size = 1;
@@ -68,11 +67,6 @@ class CombinedAllocator {
       res = secondary_.Allocate(&stats_, original_size, alignment);
     if (alignment > 8)
       CHECK_EQ(reinterpret_cast<uptr>(res) & (alignment - 1), 0);
-    // When serviced by the secondary, the chunk comes from a mmap allocation
-    // and will be zero'd out anyway. We only need to clear our the chunk if
-    // it was serviced by the primary, hence using the rounded up 'size'.
-    if (cleared && res && from_primary)
-      internal_bzero_aligned16(res, RoundUpTo(size, 16));
     return res;
   }