koda@google.com
c1008f15c0
This avoids relying on stack address order, which enables us to benefit from AddressSanitizer's detect_stack_use_after_return feature. R=iposva@google.com Review URL: https://codereview.chromium.org//944783002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@43927 260f80e4-7a28-3924-810f-c04153c831b5
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/allocation.h"
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#include "platform/assert.h"
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#include "vm/isolate.h"
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#include "vm/zone.h"
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namespace dart {
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static void* Allocate(uword size, Zone* zone) {
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ASSERT(zone != NULL);
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if (size > static_cast<uword>(kIntptrMax)) {
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FATAL1("ZoneAllocated object has unexpectedly large size %" Pu "", size);
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}
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return reinterpret_cast<void*>(zone->AllocUnsafe(size));
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}
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void* ZoneAllocated::operator new(uword size) {
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return Allocate(size, Isolate::Current()->current_zone());
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}
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void* ZoneAllocated::operator new(uword size, BaseIsolate* isolate) {
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ASSERT(isolate != NULL);
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return Allocate(size, isolate->current_zone());
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}
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void* ZoneAllocated::operator new(uword size, Zone* zone) {
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ASSERT(zone == Isolate::Current()->current_zone());
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return Allocate(size, zone);
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}
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void StackResource::UnwindAbove(Isolate* isolate, StackResource* new_top) {
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StackResource* current_resource = isolate->top_resource();
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while (current_resource != new_top) {
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current_resource->~StackResource();
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current_resource = isolate->top_resource();
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}
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}
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} // namespace dart
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