b667dd7017
2019-08-14 Martin Liska <mliska@suse.cz> PR sanitizer/89832 PR sanitizer/91325 * All source files: Merge from upstream 368656. From-SVN: r274426
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
//===-- asan_malloc_local.h -------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of AddressSanitizer, an address sanity checker.
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//
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// Provide interfaces to check for and handle local pool memory allocation.
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//===----------------------------------------------------------------------===//
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#ifndef ASAN_MALLOC_LOCAL_H
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#define ASAN_MALLOC_LOCAL_H
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#include "sanitizer_common/sanitizer_platform.h"
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#include "asan_internal.h"
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static INLINE bool EarlyMalloc() {
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return SANITIZER_RTEMS &&
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(!__asan::asan_inited || __asan::asan_init_is_running);
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}
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#if SANITIZER_RTEMS
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bool IsFromLocalPool(const void *ptr);
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void *MemalignFromLocalPool(uptr alignment, uptr size);
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// On RTEMS, we use the local pool to handle memory allocation when the ASan
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// run-time is not up. This macro is expanded in the context of the operator new
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// implementation.
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#define MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow) \
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do { \
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if (UNLIKELY(EarlyMalloc())) { \
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void *res = MemalignFromLocalPool(SHADOW_GRANULARITY, size); \
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if (!nothrow) \
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CHECK(res); \
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return res; \
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} \
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} while (0)
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#define IS_FROM_LOCAL_POOL(ptr) UNLIKELY(IsFromLocalPool(ptr))
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#else // SANITIZER_RTEMS
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#define MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow)
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#define IS_FROM_LOCAL_POOL(ptr) 0
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#endif // SANITIZER_RTEMS
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#endif // ASAN_MALLOC_LOCAL_H
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