Alexander Aprelev
61c3fbc220
- copy sanitizer runtime when using ubsan; - avoid use of winnt.h CONTAINING_RECORD since it triggers ubsan "member access within null-pointer of type" error, use our copy which uses `offsetof`; - have default virtual destructor in `ValueObject` to avoid ubsan complains about "insufficient space for an object of type 'dart:ValueObject'" at NoTemporaryAllocator use/declaration site; - have virtual destructor in ZoneAllocated to avoid ubsan complains about "not having enough space to allocate object" at new RegExpEmpty() instantiation site; - avoid using crashpad with ubsan as it causes dartvm to exit with error code 3; - switch to windows, mac-friendly `[[gnu::no_sanitize(check)]]` from `__GNUC__` and `__has_feature` checks. TEST=ci Bug: https://github.com/dart-lang/sdk/issues/62267 Change-Id: I8b922a8da329af276d4cefaa88fb841cc0457124 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/469840 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Alexander Aprelev <aam@google.com>
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
// Copyright (c) 2017, 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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#ifndef RUNTIME_PLATFORM_ALLOCATION_H_
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#define RUNTIME_PLATFORM_ALLOCATION_H_
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#include "platform/address_sanitizer.h"
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#include "platform/assert.h"
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namespace dart {
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void* calloc(size_t n, size_t size);
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void* malloc(size_t size);
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void* realloc(void* ptr, size_t size);
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// Stack allocated objects subclass from this base class. Objects of this type
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// cannot be allocated on either the C or object heaps. Destructors for objects
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// of this type will not be run unless the stack is unwound through normal
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// program control flow.
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class ValueObject {
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public:
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ValueObject() {}
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virtual ~ValueObject() = default;
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private:
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DISALLOW_ALLOCATION();
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DISALLOW_COPY_AND_ASSIGN(ValueObject);
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};
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// Static allocated classes only contain static members and can never
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// be instantiated in the heap or on the stack.
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class AllStatic {
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private:
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DISALLOW_ALLOCATION();
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DISALLOW_IMPLICIT_CONSTRUCTORS(AllStatic);
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};
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class MallocAllocated {
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public:
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MallocAllocated() {}
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// Intercept operator new to produce clearer error messages when we run out
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// of memory. Don't do this when running under ASAN so it can continue to
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// check malloc/new/new[] are paired with free/delete/delete[] respectively.
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#if !defined(USING_ADDRESS_SANITIZER)
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void* operator new(size_t size) { return dart::malloc(size); }
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void* operator new[](size_t size) { return dart::malloc(size); }
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void operator delete(void* pointer) { ::free(pointer); }
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void operator delete[](void* pointer) { ::free(pointer); }
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#endif
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};
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} // namespace dart
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#endif // RUNTIME_PLATFORM_ALLOCATION_H_
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