1 2# Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved. 3# 4# This program is free software; you can redistribute it and/or modify 5# it under the terms of the GNU General Public License, version 2.0, 6# as published by the Free Software Foundation. 7# 8# This program is also distributed with certain software (including 9# but not limited to OpenSSL) that is licensed under separate terms, 10# as designated in a particular file or component or in included license 11# documentation. The authors of MySQL hereby grant you an additional 12# permission to link the program and your derivative works with the 13# separately licensed software that they have included with MySQL. 14# 15# This program is distributed in the hope that it will be useful, 16# but WITHOUT ANY WARRANTY; without even the implied warranty of 17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18# GNU General Public License, version 2.0, for more details. 19# 20# You should have received a copy of the GNU General Public License 21# along with this program; if not, write to the Free Software 22# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 23 24# This file includes Linux specific options and quirks, related to system checks 25 26INCLUDE(CheckSymbolExists) 27 28# Something that needs to be set on legacy reasons 29SET(TARGET_OS_LINUX 1) 30SET(_GNU_SOURCE 1) 31 32# Fix CMake (< 2.8) flags. -rdynamic exports too many symbols. 33FOREACH(LANG C CXX) 34 STRING(REPLACE "-rdynamic" "" 35 CMAKE_SHARED_LIBRARY_LINK_${LANG}_FLAGS 36 ${CMAKE_SHARED_LIBRARY_LINK_${LANG}_FLAGS} 37 ) 38ENDFOREACH() 39 40# Ensure we have clean build for shared libraries 41# without unresolved symbols 42# Not supported with AddressSanitizer 43IF(NOT WITH_ASAN) 44 SET(LINK_FLAG_NO_UNDEFINED "-Wl,--no-undefined") 45ENDIF() 46 47# 64 bit file offset support flag 48SET(_FILE_OFFSET_BITS 64) 49ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64) 50 51# Linux specific HUGETLB /large page support 52CHECK_SYMBOL_EXISTS(SHM_HUGETLB sys/shm.h HAVE_DECL_SHM_HUGETLB) 53IF(HAVE_DECL_SHM_HUGETLB) 54 SET(HAVE_LARGE_PAGES 1) 55 SET(HUGETLB_USE_PROC_MEMINFO 1) 56 SET(HAVE_LARGE_PAGE_OPTION 1) 57ENDIF() 58