168d75effSDimitry Andric //===-- common.cpp ----------------------------------------------*- C++ -*-===// 268d75effSDimitry Andric // 368d75effSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 468d75effSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 568d75effSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 668d75effSDimitry Andric // 768d75effSDimitry Andric //===----------------------------------------------------------------------===// 868d75effSDimitry Andric 968d75effSDimitry Andric #include "common.h" 1068d75effSDimitry Andric #include "atomic_helpers.h" 11*fe6060f1SDimitry Andric #include "string_utils.h" 1268d75effSDimitry Andric 1368d75effSDimitry Andric namespace scudo { 1468d75effSDimitry Andric 1568d75effSDimitry Andric uptr PageSizeCached; 1668d75effSDimitry Andric uptr getPageSize(); 1768d75effSDimitry Andric 1868d75effSDimitry Andric uptr getPageSizeSlow() { 1968d75effSDimitry Andric PageSizeCached = getPageSize(); 2068d75effSDimitry Andric CHECK_NE(PageSizeCached, 0); 2168d75effSDimitry Andric return PageSizeCached; 2268d75effSDimitry Andric } 2368d75effSDimitry Andric 2468d75effSDimitry Andric // Fatal internal map() or unmap() error (potentially OOM related). 25*fe6060f1SDimitry Andric void NORETURN dieOnMapUnmapError(uptr SizeIfOOM) { 26*fe6060f1SDimitry Andric char Error[128] = "Scudo ERROR: internal map or unmap failure\n"; 27*fe6060f1SDimitry Andric if (SizeIfOOM) { 28*fe6060f1SDimitry Andric formatString( 29*fe6060f1SDimitry Andric Error, sizeof(Error), 30*fe6060f1SDimitry Andric "Scudo ERROR: internal map failure (NO MEMORY) requesting %zuKB\n", 31*fe6060f1SDimitry Andric SizeIfOOM >> 10); 32*fe6060f1SDimitry Andric } 33*fe6060f1SDimitry Andric outputRaw(Error); 34*fe6060f1SDimitry Andric setAbortMessage(Error); 3568d75effSDimitry Andric die(); 3668d75effSDimitry Andric } 3768d75effSDimitry Andric 3868d75effSDimitry Andric } // namespace scudo 39