[NFC][sanitizer] Extend DlSymAllocator

Preparation for using in`tsan`.

Author: vitalybuka

compiler-rt/lib/sanitizer_common/sanitizer_allocator_dlsym.h

@@ -15,6 +15,8 @@
 #define SANITIZER_ALLOCATOR_DLSYM_H
 
 #include "sanitizer_allocator_internal.h"
+#include "sanitizer_common/sanitizer_allocator_checks.h"
+#include "sanitizer_common/sanitizer_internal_defs.h"
 
 namespace __sanitizer {
 
@@ -31,15 +33,15 @@ struct DlSymAllocator {
            UNLIKELY(internal_allocator()->FromPrimary(ptr));
   }
 
-  static void *Allocate(uptr size_in_bytes) {
-    void *ptr = InternalAlloc(size_in_bytes, nullptr, kWordSize);
+  static void *Allocate(uptr size_in_bytes, uptr align = kWordSize) {
+    void *ptr = InternalAlloc(size_in_bytes, nullptr, align);
     CHECK(internal_allocator()->FromPrimary(ptr));
     Details::OnAllocate(ptr,
                         internal_allocator()->GetActuallyAllocatedSize(ptr));
     return ptr;
   }
 
-  static void *Callocate(SIZE_T nmemb, SIZE_T size) {
+  static void *Callocate(usize nmemb, usize size) {
     void *ptr = InternalCalloc(nmemb, size);
     CHECK(internal_allocator()->FromPrimary(ptr));
     Details::OnAllocate(ptr,
@@ -70,6 +72,11 @@ struct DlSymAllocator {
     return new_ptr;
   }
 
+  static void *ReallocArray(void *ptr, uptr count, uptr size) {
+    CHECK(!CheckForCallocOverflow(count, size));
+    return Realloc(ptr, count * size);
+  }
+
   static void OnAllocate(const void *ptr, uptr size) {}
   static void OnFree(const void *ptr, uptr size) {}
 };