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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be | 
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. | 
| 4 | 4 | 
| 5 #include <fcntl.h> | 5 #include <fcntl.h> | 
|  | 6 #include <stddef.h> | 
| 6 #include <stdio.h> | 7 #include <stdio.h> | 
| 7 #include <stdlib.h> | 8 #include <stdlib.h> | 
| 8 #include <string.h> | 9 #include <string.h> | 
| 9 #include <sys/stat.h> | 10 #include <sys/stat.h> | 
| 10 #include <sys/types.h> | 11 #include <sys/types.h> | 
| 11 | 12 | 
| 12 #include <algorithm> | 13 #include <algorithm> | 
| 13 #include <limits> | 14 #include <limits> | 
| 14 | 15 | 
| 15 #include "base/files/file_util.h" | 16 #include "base/files/file_util.h" | 
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| 175   // kRandomMask, so we use it as an additional detection mechanism. | 176   // kRandomMask, so we use it as an additional detection mechanism. | 
| 176   const uintptr_t kRandomMask = 0x3fffffffffffULL; | 177   const uintptr_t kRandomMask = 0x3fffffffffffULL; | 
| 177   bool impossible_random_address = | 178   bool impossible_random_address = | 
| 178       reinterpret_cast<uintptr_t>(ptr.get()) & ~kRandomMask; | 179       reinterpret_cast<uintptr_t>(ptr.get()) & ~kRandomMask; | 
| 179   EXPECT_FALSE(impossible_random_address); | 180   EXPECT_FALSE(impossible_random_address); | 
| 180 } | 181 } | 
| 181 | 182 | 
| 182 #endif  // defined(OS_LINUX) && defined(__x86_64__) | 183 #endif  // defined(OS_LINUX) && defined(__x86_64__) | 
| 183 | 184 | 
| 184 }  // namespace | 185 }  // namespace | 
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