blob: 28a4a14139ea99c8db32cb75038e1be5d3952365 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/heap/cppgc/heap.h"
#include "src/heap/cppgc/globals.h"
#include "src/heap/cppgc/heap-object-header-inl.h"
#ifndef V8_HEAP_CPPGC_HEAP_INL_H_
#define V8_HEAP_CPPGC_HEAP_INL_H_
namespace cppgc {
namespace internal {
void* Heap::Allocate(size_t size, GCInfoIndex index) {
// TODO(chromium:1056170): This is merely a dummy implementation and will be
// replaced with proper allocation code throughout the migration.
size_t allocation_size = size + sizeof(HeapObjectHeader);
// The allocation size calculation can overflow for large sizes.
CHECK_GT(allocation_size, size);
// calloc() provides stricter alignment guarantees than the GC. Allocate
// a multiple of kAllocationGranularity to follow restrictions of
// HeapObjectHeader.
allocation_size = (allocation_size + kAllocationMask) & ~kAllocationMask;
void* memory = calloc(1, allocation_size);
HeapObjectHeader* header =
new (memory) HeapObjectHeader(allocation_size, index);
objects_.push_back(header);
return header->Payload();
}
} // namespace internal
} // namespace cppgc
#endif // V8_HEAP_CPPGC_HEAP_INL_H_
|
