| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Android/bionic/bionic/libc/private/ (Android Betriebssystem Version 17©) Datei vom 26.5.2026 mit Größe 1 kB |
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Quelle bionic_constants.hSprache: C |
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/* * Copyright (C) 2014 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #pragma once #include <sys/cdefs.h> #define US_PER_S 1'000'000LL #define NS_PER_S 1'000'000'000LL // Size of the shadow call stack. This can be small because these stacks only // contain return addresses. This must be a power of 2 so the mask trick works. // See the SCS commentary in pthread_internal.h for more detail. // SCS_SIZE must be a multiple of page size. // We used 8KiB until V but switched to 16KiB in V to experiment with 16KiB pages. #define SCS_SIZE (16 * 1024) #define SCS_MASK (SCS_SIZE - 1) // The shadow call stack is allocated at an aligned address within a guard region of this size. Th // guard region must be large enough that we can allocate an SCS_SIZE-aligned SCS while ensurin // that there is at least one guard page after the SCS so that a stack overflow results in a SIGSEGV // instead of corrupting the allocation that comes after it. #define SCS_GUARD_REGION_SIZE (16 * 1024 * 1024)
¤ Dauer der Verarbeitung: 0.15 Sekunden (vorverarbeitet am 2026-06-28) ¤*© Formatika GbR, Deutschland |
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2026-07-09