1 //===-- common.cpp ----------------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "common.h" 10 #include "atomic_helpers.h" 11 12 namespace scudo { 13 14 uptr PageSizeCached; 15 uptr getPageSize(); 16 17 uptr getPageSizeSlow() { 18 PageSizeCached = getPageSize(); 19 CHECK_NE(PageSizeCached, 0); 20 return PageSizeCached; 21 } 22 23 // Fatal internal map() or unmap() error (potentially OOM related). 24 void NORETURN dieOnMapUnmapError(bool OutOfMemory) { 25 outputRaw("Scudo ERROR: internal map or unmap failure"); 26 if (OutOfMemory) 27 outputRaw(" (OOM)"); 28 outputRaw("\n"); 29 die(); 30 } 31 32 } // namespace scudo 33