mirror of
https://github.com/MariaDB/server.git
synced 2026-05-15 19:37:16 +02:00
f224525204
The -Wconversion in GCC seems to be stricter than in clang. GCC at least since version 4.4.7 issues truncation warnings for assignments to bitfields, while clang 10 appears to only issue warnings when the sizes in bytes rounded to the nearest integer powers of 2 are different. Before GCC 10.0.0, -Wconversion required more casts and would not allow some operations, such as x<<=1 or x+=1 on a data type that is narrower than int. GCC 5 (but not GCC 4, GCC 6, or any later version) is complaining about x|=y even when x and y are compatible types that are narrower than int. Hence, we must rewrite some x|=y as x=static_cast<byte>(x|y) or similar, or we must disable -Wconversion. In GCC 6 and later, the warning for assigning wider to bitfields that are narrower than 8, 16, or 32 bits can be suppressed by applying a bitwise & with the exact bitmask of the bitfield. For older GCC, we must disable -Wconversion for GCC 4 or 5 in such cases. The bitwise negation operator appears to promote short integers to a wider type, and hence we must add explicit truncation casts around them. Microsoft Visual C does not allow a static_cast to truncate a constant, such as static_cast<byte>(1) truncating int. Hence, we will use the constructor-style cast byte(~1) for such cases. This has been tested at least with GCC 4.8.5, 5.4.0, 7.4.0, 9.2.1, 10.0.0, clang 9.0.1, 10.0.0, and MSVC 14.22.27905 (Microsoft Visual Studio 2019) on 64-bit and 32-bit targets (IA-32, AMD64, POWER 8, POWER 9, ARMv8).
235 lines
6.9 KiB
CMake
235 lines
6.9 KiB
CMake
# Copyright (c) 2006, 2016, Oracle and/or its affiliates. All rights reserved.
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# Copyright (c) 2017, 2020, MariaDB Corporation.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# This is the CMakeLists for InnoDB
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INCLUDE(CheckFunctionExists)
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INCLUDE(CheckCSourceCompiles)
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INCLUDE(CheckCSourceRuns)
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INCLUDE(lz4.cmake)
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INCLUDE(lzo.cmake)
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INCLUDE(lzma.cmake)
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INCLUDE(bzip2.cmake)
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INCLUDE(snappy.cmake)
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INCLUDE(numa)
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INCLUDE(TestBigEndian)
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MYSQL_CHECK_LZ4()
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MYSQL_CHECK_LZO()
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MYSQL_CHECK_LZMA()
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MYSQL_CHECK_BZIP2()
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MYSQL_CHECK_SNAPPY()
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MYSQL_CHECK_NUMA()
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INCLUDE(${MYSQL_CMAKE_SCRIPT_DIR}/compile_flags.cmake)
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IF(CMAKE_CROSSCOMPILING)
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# Use CHECK_C_SOURCE_COMPILES instead of CHECK_C_SOURCE_RUNS when
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# cross-compiling. Not as precise, but usually good enough.
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# This only make sense for atomic tests in this file, this trick doesn't
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# work in a general case.
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MACRO(CHECK_C_SOURCE SOURCE VAR)
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CHECK_C_SOURCE_COMPILES("${SOURCE}" "${VAR}")
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ENDMACRO()
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ELSE()
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MACRO(CHECK_C_SOURCE SOURCE VAR)
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CHECK_C_SOURCE_RUNS("${SOURCE}" "${VAR}")
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ENDMACRO()
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ENDIF()
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# OS tests
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IF(UNIX)
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IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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ADD_DEFINITIONS("-DUNIV_LINUX -D_GNU_SOURCE=1")
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CHECK_INCLUDE_FILES (libaio.h HAVE_LIBAIO_H)
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CHECK_LIBRARY_EXISTS(aio io_queue_init "" HAVE_LIBAIO)
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IF(HAVE_LIBAIO_H AND HAVE_LIBAIO)
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ADD_DEFINITIONS(-DLINUX_NATIVE_AIO=1)
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LINK_LIBRARIES(aio)
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ENDIF()
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IF(HAVE_LIBNUMA)
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LINK_LIBRARIES(numa)
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ENDIF()
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ELSEIF(CMAKE_SYSTEM_NAME MATCHES "HP*")
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ADD_DEFINITIONS("-DUNIV_HPUX")
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ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "AIX")
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ADD_DEFINITIONS("-DUNIV_AIX")
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ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
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ADD_DEFINITIONS("-DUNIV_SOLARIS")
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ENDIF()
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ENDIF()
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OPTION(INNODB_COMPILER_HINTS "Compile InnoDB with compiler hints" ON)
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MARK_AS_ADVANCED(INNODB_COMPILER_HINTS)
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IF(INNODB_COMPILER_HINTS)
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ADD_DEFINITIONS("-DCOMPILER_HINTS")
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ENDIF()
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SET(MUTEXTYPE "event" CACHE STRING "Mutex type: event, sys or futex")
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# Enable InnoDB's UNIV_DEBUG in debug builds
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SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DUNIV_DEBUG")
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OPTION(WITH_INNODB_AHI "Include innodb_adaptive_hash_index" ON)
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OPTION(WITH_INNODB_ROOT_GUESS "Cache index root block descriptors" ON)
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IF(WITH_INNODB_AHI)
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ADD_DEFINITIONS(-DBTR_CUR_HASH_ADAPT -DBTR_CUR_ADAPT)
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IF(NOT WITH_INNODB_ROOT_GUESS)
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MESSAGE(WARNING "WITH_INNODB_AHI implies WITH_INNODB_ROOT_GUESS")
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ENDIF()
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ELSEIF(WITH_INNODB_ROOT_GUESS)
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ADD_DEFINITIONS(-DBTR_CUR_ADAPT)
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ENDIF()
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OPTION(WITH_INNODB_EXTRA_DEBUG "Enable extra InnoDB debug checks" OFF)
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IF(WITH_INNODB_EXTRA_DEBUG)
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ADD_DEFINITIONS(-DUNIV_ZIP_DEBUG)
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ENDIF()
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CHECK_FUNCTION_EXISTS(sched_getcpu HAVE_SCHED_GETCPU)
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IF(HAVE_SCHED_GETCPU)
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ADD_DEFINITIONS(-DHAVE_SCHED_GETCPU=1)
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ENDIF()
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CHECK_FUNCTION_EXISTS(nanosleep HAVE_NANOSLEEP)
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IF(HAVE_NANOSLEEP)
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ADD_DEFINITIONS(-DHAVE_NANOSLEEP=1)
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ENDIF()
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IF(HAVE_FALLOC_PUNCH_HOLE_AND_KEEP_SIZE)
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ADD_DEFINITIONS(-DHAVE_FALLOC_PUNCH_HOLE_AND_KEEP_SIZE=1)
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ENDIF()
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IF (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR
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CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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ADD_DEFINITIONS("-Wconversion -Wno-sign-conversion")
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SET_SOURCE_FILES_PROPERTIES(fts/fts0pars.cc
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PROPERTIES COMPILE_FLAGS -Wno-conversion)
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ENDIF()
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IF(NOT MSVC)
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# Work around MDEV-18417, MDEV-18656, MDEV-18417
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IF(WITH_ASAN AND CMAKE_COMPILER_IS_GNUCC AND
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CMAKE_C_COMPILER_VERSION VERSION_LESS "6.0.0")
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SET_SOURCE_FILES_PROPERTIES(trx/trx0rec.cc PROPERTIES COMPILE_FLAGS -O1)
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ENDIF()
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# Only use futexes on Linux if GCC atomics are available
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IF(NOT MSVC AND NOT CMAKE_CROSSCOMPILING)
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CHECK_C_SOURCE_RUNS(
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"
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <assert.h>
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#include <linux/futex.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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int futex_wait(int* futex, int v) {
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return(syscall(SYS_futex, futex, FUTEX_WAIT_PRIVATE, v, NULL, NULL, 0));
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}
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int futex_signal(int* futex) {
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return(syscall(SYS_futex, futex, FUTEX_WAKE, 1, NULL, NULL, 0));
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}
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int main() {
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int ret;
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int m = 1;
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/* It is setup to fail and return EWOULDBLOCK. */
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ret = futex_wait(&m, 0);
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assert(ret == -1 && errno == EWOULDBLOCK);
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/* Shouldn't wake up any threads. */
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assert(futex_signal(&m) == 0);
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return(0);
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}"
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HAVE_IB_LINUX_FUTEX)
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ENDIF()
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IF(HAVE_IB_LINUX_FUTEX)
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ADD_DEFINITIONS(-DHAVE_IB_LINUX_FUTEX=1)
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ENDIF()
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ENDIF(NOT MSVC)
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CHECK_FUNCTION_EXISTS(vasprintf HAVE_VASPRINTF)
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CHECK_CXX_SOURCE_COMPILES("struct t1{ int a; char *b; }; struct t1 c= { .a=1, .b=0 }; main() { }" HAVE_C99_INITIALIZERS)
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IF(HAVE_C99_INITIALIZERS)
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ADD_DEFINITIONS(-DHAVE_C99_INITIALIZERS)
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ENDIF()
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SET(MUTEXTYPE "event" CACHE STRING "Mutex type: event, sys or futex")
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IF(MUTEXTYPE MATCHES "event")
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ADD_DEFINITIONS(-DMUTEX_EVENT)
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ELSEIF(MUTEXTYPE MATCHES "futex" AND DEFINED HAVE_IB_LINUX_FUTEX)
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ADD_DEFINITIONS(-DMUTEX_FUTEX)
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ELSE()
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ADD_DEFINITIONS(-DMUTEX_SYS)
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ENDIF()
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OPTION(WITH_INNODB_DISALLOW_WRITES "InnoDB freeze writes patch from Google" ${WITH_WSREP})
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IF (WITH_INNODB_DISALLOW_WRITES)
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ADD_DEFINITIONS(-DWITH_INNODB_DISALLOW_WRITES)
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ENDIF()
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# Include directories under innobase
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INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/storage/innobase/include
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${CMAKE_SOURCE_DIR}/storage/innobase/handler)
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# Sun Studio bug with -xO2
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IF(CMAKE_CXX_COMPILER_ID MATCHES "SunPro"
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AND CMAKE_CXX_FLAGS_RELEASE MATCHES "O2"
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AND NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
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# Sun Studio 12 crashes with -xO2 flag, but not with higher optimization
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# -xO3
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SET_SOURCE_FILES_PROPERTIES(${CMAKE_CURRENT_SOURCE_DIR}/rem/rem0rec.cc
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PROPERTIES COMPILE_FLAGS -xO3)
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ENDIF()
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# Avoid generating Hardware Capabilities due to crc32 instructions
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IF(CMAKE_SYSTEM_NAME MATCHES "SunOS" AND CMAKE_SYSTEM_PROCESSOR MATCHES "i386")
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MY_CHECK_CXX_COMPILER_FLAG("-Wa,-nH")
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IF(have_CXX__Wa__nH)
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ADD_COMPILE_FLAGS(
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ut/ut0crc32.cc
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COMPILE_FLAGS "-Wa,-nH"
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)
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ENDIF()
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ENDIF()
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IF(MSVC)
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# Avoid "unreferenced label" warning in generated file
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GET_FILENAME_COMPONENT(_SRC_DIR ${CMAKE_CURRENT_LIST_FILE} PATH)
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SET_SOURCE_FILES_PROPERTIES(${_SRC_DIR}/pars/pars0grm.c
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PROPERTIES COMPILE_FLAGS "/wd4102")
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SET_SOURCE_FILES_PROPERTIES(${_SRC_DIR}/pars/lexyy.c
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PROPERTIES COMPILE_FLAGS "/wd4003")
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ENDIF()
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# Include directories under innobase
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INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/storage/innobase/include
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${CMAKE_SOURCE_DIR}/storage/innobase/handler
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${CMAKE_SOURCE_DIR}/libbinlogevents/include )
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