diff options
Diffstat (limited to 'src/rocksdb/build_tools/build_detect_platform')
| -rwxr-xr-x | src/rocksdb/build_tools/build_detect_platform | 642 |
1 files changed, 642 insertions, 0 deletions
diff --git a/src/rocksdb/build_tools/build_detect_platform b/src/rocksdb/build_tools/build_detect_platform new file mode 100755 index 00000000..057f77ec --- /dev/null +++ b/src/rocksdb/build_tools/build_detect_platform @@ -0,0 +1,642 @@ +#!/usr/bin/env bash +# +# Detects OS we're compiling on and outputs a file specified by the first +# argument, which in turn gets read while processing Makefile. +# +# The output will set the following variables: +# CC C Compiler path +# CXX C++ Compiler path +# PLATFORM_LDFLAGS Linker flags +# JAVA_LDFLAGS Linker flags for RocksDBJava +# JAVA_STATIC_LDFLAGS Linker flags for RocksDBJava static build +# PLATFORM_SHARED_EXT Extension for shared libraries +# PLATFORM_SHARED_LDFLAGS Flags for building shared library +# PLATFORM_SHARED_CFLAGS Flags for compiling objects for shared library +# PLATFORM_CCFLAGS C compiler flags +# PLATFORM_CXXFLAGS C++ compiler flags. Will contain: +# PLATFORM_SHARED_VERSIONED Set to 'true' if platform supports versioned +# shared libraries, empty otherwise. +# FIND Command for the find utility +# WATCH Command for the watch utility +# +# The PLATFORM_CCFLAGS and PLATFORM_CXXFLAGS might include the following: +# +# -DROCKSDB_PLATFORM_POSIX if posix-platform based +# -DSNAPPY if the Snappy library is present +# -DLZ4 if the LZ4 library is present +# -DZSTD if the ZSTD library is present +# -DNUMA if the NUMA library is present +# -DTBB if the TBB library is present +# +# Using gflags in rocksdb: +# Our project depends on gflags, which requires users to take some extra steps +# before they can compile the whole repository: +# 1. Install gflags. You may download it from here: +# https://gflags.github.io/gflags/ (Mac users can `brew install gflags`) +# 2. Once installed, add the include path for gflags to your CPATH env var and +# the lib path to LIBRARY_PATH. If installed with default settings, the lib +# will be /usr/local/lib and the include path will be /usr/local/include + +OUTPUT=$1 +if test -z "$OUTPUT"; then + echo "usage: $0 <output-filename>" >&2 + exit 1 +fi + +# we depend on C++11 +PLATFORM_CXXFLAGS="-std=c++11" +# we currently depend on POSIX platform +COMMON_FLAGS="-DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX" + +# Default to fbcode gcc on internal fb machines +if [ -z "$ROCKSDB_NO_FBCODE" -a -d /mnt/gvfs/third-party ]; then + FBCODE_BUILD="true" + # If we're compiling with TSAN we need pic build + PIC_BUILD=$COMPILE_WITH_TSAN + if [ -n "$ROCKSDB_FBCODE_BUILD_WITH_481" ]; then + # we need this to build with MySQL. Don't use for other purposes. + source "$PWD/build_tools/fbcode_config4.8.1.sh" + elif [ -n "$ROCKSDB_FBCODE_BUILD_WITH_PLATFORM007" ]; then + source "$PWD/build_tools/fbcode_config_platform007.sh" + else + source "$PWD/build_tools/fbcode_config.sh" + fi +fi + +# Delete existing output, if it exists +rm -f "$OUTPUT" +touch "$OUTPUT" + +if test -z "$CC"; then + if [ -x "$(command -v cc)" ]; then + CC=cc + elif [ -x "$(command -v clang)" ]; then + CC=clang + else + CC=cc + fi +fi + +if test -z "$CXX"; then + if [ -x "$(command -v g++)" ]; then + CXX=g++ + elif [ -x "$(command -v clang++)" ]; then + CXX=clang++ + else + CXX=g++ + fi +fi + +# Detect OS +if test -z "$TARGET_OS"; then + TARGET_OS=`uname -s` +fi + +if test -z "$TARGET_ARCHITECTURE"; then + TARGET_ARCHITECTURE=`uname -m` +fi + +if test -z "$CLANG_SCAN_BUILD"; then + CLANG_SCAN_BUILD=scan-build +fi + +if test -z "$CLANG_ANALYZER"; then + CLANG_ANALYZER=$(command -v clang++ 2> /dev/null) +fi + +if test -z "$FIND"; then + FIND=find +fi + +if test -z "$WATCH"; then + WATCH=watch +fi + +COMMON_FLAGS="$COMMON_FLAGS ${CFLAGS}" +CROSS_COMPILE= +PLATFORM_CCFLAGS= +PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS" +PLATFORM_SHARED_EXT="so" +PLATFORM_SHARED_LDFLAGS="-Wl,--no-as-needed -shared -Wl,-soname -Wl," +PLATFORM_SHARED_CFLAGS="-fPIC" +PLATFORM_SHARED_VERSIONED=true + +# generic port files (working on all platform by #ifdef) go directly in /port +GENERIC_PORT_FILES=`cd "$ROCKSDB_ROOT"; find port -name '*.cc' | tr "\n" " "` + +# On GCC, we pick libc's memcmp over GCC's memcmp via -fno-builtin-memcmp +case "$TARGET_OS" in + Darwin) + PLATFORM=OS_MACOSX + COMMON_FLAGS="$COMMON_FLAGS -DOS_MACOSX" + PLATFORM_SHARED_EXT=dylib + PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name " + # PORT_FILES=port/darwin/darwin_specific.cc + ;; + IOS) + PLATFORM=IOS + COMMON_FLAGS="$COMMON_FLAGS -DOS_MACOSX -DIOS_CROSS_COMPILE -DROCKSDB_LITE" + PLATFORM_SHARED_EXT=dylib + PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name " + CROSS_COMPILE=true + PLATFORM_SHARED_VERSIONED= + ;; + Linux) + PLATFORM=OS_LINUX + COMMON_FLAGS="$COMMON_FLAGS -DOS_LINUX" + if [ -z "$USE_CLANG" ]; then + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp" + else + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -latomic" + fi + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt" + # PORT_FILES=port/linux/linux_specific.cc + ;; + SunOS) + PLATFORM=OS_SOLARIS + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_SOLARIS -m64" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt -static-libstdc++ -static-libgcc -m64" + # PORT_FILES=port/sunos/sunos_specific.cc + ;; + AIX) + PLATFORM=OS_AIX + CC=gcc + COMMON_FLAGS="$COMMON_FLAGS -maix64 -pthread -fno-builtin-memcmp -D_REENTRANT -DOS_AIX -D__STDC_FORMAT_MACROS" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -pthread -lpthread -lrt -maix64 -static-libstdc++ -static-libgcc" + # PORT_FILES=port/aix/aix_specific.cc + ;; + FreeBSD) + PLATFORM=OS_FREEBSD + CXX=clang++ + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_FREEBSD" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread" + # PORT_FILES=port/freebsd/freebsd_specific.cc + ;; + NetBSD) + PLATFORM=OS_NETBSD + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_NETBSD" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lgcc_s" + # PORT_FILES=port/netbsd/netbsd_specific.cc + ;; + OpenBSD) + PLATFORM=OS_OPENBSD + CXX=clang++ + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -pthread" + # PORT_FILES=port/openbsd/openbsd_specific.cc + FIND=gfind + WATCH=gnuwatch + ;; + DragonFly) + PLATFORM=OS_DRAGONFLYBSD + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_DRAGONFLYBSD" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread" + # PORT_FILES=port/dragonfly/dragonfly_specific.cc + ;; + Cygwin) + PLATFORM=CYGWIN + PLATFORM_SHARED_CFLAGS="" + PLATFORM_CXXFLAGS="-std=gnu++11" + COMMON_FLAGS="$COMMON_FLAGS -DCYGWIN" + if [ -z "$USE_CLANG" ]; then + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp" + else + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -latomic" + fi + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt" + # PORT_FILES=port/linux/linux_specific.cc + ;; + OS_ANDROID_CROSSCOMPILE) + PLATFORM=OS_ANDROID + COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_ANDROID -DROCKSDB_PLATFORM_POSIX" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS " # All pthread features are in the Android C library + # PORT_FILES=port/android/android.cc + CROSS_COMPILE=true + ;; + *) + echo "Unknown platform!" >&2 + exit 1 +esac + +PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS ${CXXFLAGS}" +JAVA_LDFLAGS="$PLATFORM_LDFLAGS" +JAVA_STATIC_LDFLAGS="$PLATFORM_LDFLAGS" + +if [ "$CROSS_COMPILE" = "true" -o "$FBCODE_BUILD" = "true" ]; then + # Cross-compiling; do not try any compilation tests. + # Also don't need any compilation tests if compiling on fbcode + true +else + if ! test $ROCKSDB_DISABLE_FALLOCATE; then + # Test whether fallocate is available + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <fcntl.h> + #include <linux/falloc.h> + int main() { + int fd = open("/dev/null", 0); + fallocate(fd, FALLOC_FL_KEEP_SIZE, 0, 1024); + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_FALLOCATE_PRESENT" + fi + fi + + if ! test $ROCKSDB_DISABLE_SNAPPY; then + # Test whether Snappy library is installed + # http://code.google.com/p/snappy/ + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <snappy.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DSNAPPY" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lsnappy" + JAVA_LDFLAGS="$JAVA_LDFLAGS -lsnappy" + fi + fi + + if ! test $ROCKSDB_DISABLE_GFLAGS; then + # Test whether gflags library is installed + # http://gflags.github.io/gflags/ + # check if the namespace is gflags + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF + #include <gflags/gflags.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=1" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags" + else + # check if namespace is google + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF + #include <gflags/gflags.h> + using namespace google; + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=google" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags" + fi + fi + fi + + if ! test $ROCKSDB_DISABLE_ZLIB; then + # Test whether zlib library is installed + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <zlib.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DZLIB" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lz" + JAVA_LDFLAGS="$JAVA_LDFLAGS -lz" + fi + fi + + if ! test $ROCKSDB_DISABLE_BZIP; then + # Test whether bzip library is installed + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <bzlib.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DBZIP2" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lbz2" + JAVA_LDFLAGS="$JAVA_LDFLAGS -lbz2" + fi + fi + + if ! test $ROCKSDB_DISABLE_LZ4; then + # Test whether lz4 library is installed + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <lz4.h> + #include <lz4hc.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DLZ4" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -llz4" + JAVA_LDFLAGS="$JAVA_LDFLAGS -llz4" + fi + fi + + if ! test $ROCKSDB_DISABLE_ZSTD; then + # Test whether zstd library is installed + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <zstd.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DZSTD" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lzstd" + JAVA_LDFLAGS="$JAVA_LDFLAGS -lzstd" + fi + fi + + if ! test $ROCKSDB_DISABLE_NUMA; then + # Test whether numa is available + $CXX $CFLAGS -x c++ - -o /dev/null -lnuma 2>/dev/null <<EOF + #include <numa.h> + #include <numaif.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DNUMA" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lnuma" + JAVA_LDFLAGS="$JAVA_LDFLAGS -lnuma" + fi + fi + + if ! test $ROCKSDB_DISABLE_TBB; then + # Test whether tbb is available + $CXX $CFLAGS $LDFLAGS -x c++ - -o /dev/null -ltbb 2>/dev/null <<EOF + #include <tbb/tbb.h> + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DTBB" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltbb" + JAVA_LDFLAGS="$JAVA_LDFLAGS -ltbb" + fi + fi + + if ! test $ROCKSDB_DISABLE_JEMALLOC; then + # Test whether jemalloc is available + if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o /dev/null -ljemalloc \ + 2>/dev/null; then + # This will enable some preprocessor identifiers in the Makefile + JEMALLOC=1 + # JEMALLOC can be enabled either using the flag (like here) or by + # providing direct link to the jemalloc library + WITH_JEMALLOC_FLAG=1 + # check for JEMALLOC installed with HomeBrew + if [ "$PLATFORM" == "OS_MACOSX" ]; then + if hash brew 2>/dev/null && brew ls --versions jemalloc > /dev/null; then + JEMALLOC_VER=$(brew ls --versions jemalloc | tail -n 1 | cut -f 2 -d ' ') + JEMALLOC_INCLUDE="-I/usr/local/Cellar/jemalloc/${JEMALLOC_VER}/include" + JEMALLOC_LIB="/usr/local/Cellar/jemalloc/${JEMALLOC_VER}/lib/libjemalloc_pic.a" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS $JEMALLOC_LIB" + JAVA_STATIC_LDFLAGS="$JAVA_STATIC_LDFLAGS $JEMALLOC_LIB" + fi + fi + fi + fi + if ! test $JEMALLOC && ! test $ROCKSDB_DISABLE_TCMALLOC; then + # jemalloc is not available. Let's try tcmalloc + if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o /dev/null \ + -ltcmalloc 2>/dev/null; then + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc" + JAVA_LDFLAGS="$JAVA_LDFLAGS -ltcmalloc" + fi + fi + + if ! test $ROCKSDB_DISABLE_MALLOC_USABLE_SIZE; then + # Test whether malloc_usable_size is available + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <malloc.h> + int main() { + size_t res = malloc_usable_size(0); + return 0; + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_MALLOC_USABLE_SIZE" + fi + fi + + if ! test $ROCKSDB_DISABLE_PTHREAD_MUTEX_ADAPTIVE_NP; then + # Test whether PTHREAD_MUTEX_ADAPTIVE_NP mutex type is available + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <pthread.h> + int main() { + int x = PTHREAD_MUTEX_ADAPTIVE_NP; + return 0; + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_PTHREAD_ADAPTIVE_MUTEX" + fi + fi + + if ! test $ROCKSDB_DISABLE_BACKTRACE; then + # Test whether backtrace is available + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <execinfo.h>> + int main() { + void* frames[1]; + backtrace_symbols(frames, backtrace(frames, 1)); + return 0; + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_BACKTRACE" + else + # Test whether execinfo library is installed + $CXX $CFLAGS -lexecinfo -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <execinfo.h> + int main() { + void* frames[1]; + backtrace_symbols(frames, backtrace(frames, 1)); + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_BACKTRACE" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lexecinfo" + JAVA_LDFLAGS="$JAVA_LDFLAGS -lexecinfo" + fi + fi + fi + + if ! test $ROCKSDB_DISABLE_PG; then + # Test if -pg is supported + $CXX $CFLAGS -pg -x c++ - -o /dev/null 2>/dev/null <<EOF + int main() { + return 0; + } +EOF + if [ "$?" = 0 ]; then + PROFILING_FLAGS=-pg + fi + fi + + if ! test $ROCKSDB_DISABLE_SYNC_FILE_RANGE; then + # Test whether sync_file_range is supported for compatibility with an old glibc + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <fcntl.h> + int main() { + int fd = open("/dev/null", 0); + sync_file_range(fd, 0, 1024, SYNC_FILE_RANGE_WRITE); + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_RANGESYNC_PRESENT" + fi + fi + + if ! test $ROCKSDB_DISABLE_SCHED_GETCPU; then + # Test whether sched_getcpu is supported + $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <sched.h> + int main() { + int cpuid = sched_getcpu(); + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_SCHED_GETCPU_PRESENT" + fi + fi + + if ! test $ROCKSDB_DISABLE_ALIGNED_NEW; then + # Test whether c++17 aligned-new is supported + $CXX $PLATFORM_CXXFLAGS -faligned-new -x c++ - -o /dev/null 2>/dev/null <<EOF + struct alignas(1024) t {int a;}; + int main() {} +EOF + if [ "$?" = 0 ]; then + PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS -faligned-new -DHAVE_ALIGNED_NEW" + fi + fi +fi + +# TODO(tec): Fix -Wshorten-64-to-32 errors on FreeBSD and enable the warning. +# -Wshorten-64-to-32 breaks compilation on FreeBSD i386 +if ! [ "$TARGET_OS" = FreeBSD -a "$TARGET_ARCHITECTURE" = i386 ]; then + # Test whether -Wshorten-64-to-32 is available + $CXX $CFLAGS -x c++ - -o /dev/null -Wshorten-64-to-32 2>/dev/null <<EOF + int main() {} +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -Wshorten-64-to-32" + fi +fi + +# shall we use HDFS? + +if test "$USE_HDFS"; then + if test -z "$JAVA_HOME"; then + echo "JAVA_HOME has to be set for HDFS usage." + exit 1 + fi + HDFS_CCFLAGS="$HDFS_CCFLAGS -I$JAVA_HOME/include -I$JAVA_HOME/include/linux -DUSE_HDFS -I$HADOOP_HOME/include" + HDFS_LDFLAGS="$HDFS_LDFLAGS -lhdfs -L$JAVA_HOME/jre/lib/amd64 -L$HADOOP_HOME/lib/native" + HDFS_LDFLAGS="$HDFS_LDFLAGS -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib" + HDFS_LDFLAGS="$HDFS_LDFLAGS -ldl -lverify -ljava -ljvm" + COMMON_FLAGS="$COMMON_FLAGS $HDFS_CCFLAGS" + PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS $HDFS_LDFLAGS" + JAVA_LDFLAGS="$JAVA_LDFLAGS $HDFS_LDFLAGS" +fi + +if test -z "$PORTABLE"; then + if test -n "`echo $TARGET_ARCHITECTURE | grep ^ppc64`"; then + # Tune for this POWER processor, treating '+' models as base models + POWER=`LD_SHOW_AUXV=1 /bin/true | grep AT_PLATFORM | grep -E -o power[0-9]+` + COMMON_FLAGS="$COMMON_FLAGS -mcpu=$POWER -mtune=$POWER " + elif test -n "`echo $TARGET_ARCHITECTURE | grep ^s390x`"; then + COMMON_FLAGS="$COMMON_FLAGS -march=z10 " + elif test -n "`echo $TARGET_ARCHITECTURE | grep ^arm`"; then + # TODO: Handle this with approprite options. + COMMON_FLAGS="$COMMON_FLAGS" + elif [ "$TARGET_OS" == "IOS" ]; then + COMMON_FLAGS="$COMMON_FLAGS" + elif [ "$TARGET_OS" != "AIX" ] && [ "$TARGET_OS" != "SunOS" ]; then + COMMON_FLAGS="$COMMON_FLAGS -march=native " + elif test "$USE_SSE"; then + COMMON_FLAGS="$COMMON_FLAGS -msse4.2 -mpclmul" + fi +elif test "$USE_SSE"; then + COMMON_FLAGS="$COMMON_FLAGS -msse4.2 -mpclmul" +fi + +$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <cstdint> + #include <nmmintrin.h> + int main() { + volatile uint32_t x = _mm_crc32_u32(0, 0); + } +EOF +if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DHAVE_SSE42" +elif test "$USE_SSE"; then + echo "warning: USE_SSE specified but compiler could not use SSE intrinsics, disabling" + exit 1 +fi + +$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #include <cstdint> + #include <wmmintrin.h> + int main() { + const auto a = _mm_set_epi64x(0, 0); + const auto b = _mm_set_epi64x(0, 0); + const auto c = _mm_clmulepi64_si128(a, b, 0x00); + auto d = _mm_cvtsi128_si64(c); + } +EOF +if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DHAVE_PCLMUL" +elif test "$USE_SSE"; then + echo "warning: USE_SSE specified but compiler could not use PCLMUL intrinsics, disabling" + exit 1 +fi + +# iOS doesn't support thread-local storage, but this check would erroneously +# succeed because the cross-compiler flags are added by the Makefile, not this +# script. +if [ "$PLATFORM" != IOS ]; then + $CXX $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF + #if defined(_MSC_VER) && !defined(__thread) + #define __thread __declspec(thread) + #endif + int main() { + static __thread int tls; + } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_SUPPORT_THREAD_LOCAL" + fi +fi + +PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS" +PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS" + +VALGRIND_VER="$VALGRIND_VER" + +ROCKSDB_MAJOR=`build_tools/version.sh major` +ROCKSDB_MINOR=`build_tools/version.sh minor` +ROCKSDB_PATCH=`build_tools/version.sh patch` + +echo "CC=$CC" >> "$OUTPUT" +echo "CXX=$CXX" >> "$OUTPUT" +echo "PLATFORM=$PLATFORM" >> "$OUTPUT" +echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> "$OUTPUT" +echo "JAVA_LDFLAGS=$JAVA_LDFLAGS" >> "$OUTPUT" +echo "JAVA_STATIC_LDFLAGS=$JAVA_STATIC_LDFLAGS" >> "$OUTPUT" +echo "VALGRIND_VER=$VALGRIND_VER" >> "$OUTPUT" +echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> "$OUTPUT" +echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> "$OUTPUT" +echo "PLATFORM_SHARED_CFLAGS=$PLATFORM_SHARED_CFLAGS" >> "$OUTPUT" +echo "PLATFORM_SHARED_EXT=$PLATFORM_SHARED_EXT" >> "$OUTPUT" +echo "PLATFORM_SHARED_LDFLAGS=$PLATFORM_SHARED_LDFLAGS" >> "$OUTPUT" +echo "PLATFORM_SHARED_VERSIONED=$PLATFORM_SHARED_VERSIONED" >> "$OUTPUT" +echo "EXEC_LDFLAGS=$EXEC_LDFLAGS" >> "$OUTPUT" +echo "JEMALLOC_INCLUDE=$JEMALLOC_INCLUDE" >> "$OUTPUT" +echo "JEMALLOC_LIB=$JEMALLOC_LIB" >> "$OUTPUT" +echo "ROCKSDB_MAJOR=$ROCKSDB_MAJOR" >> "$OUTPUT" +echo "ROCKSDB_MINOR=$ROCKSDB_MINOR" >> "$OUTPUT" +echo "ROCKSDB_PATCH=$ROCKSDB_PATCH" >> "$OUTPUT" +echo "CLANG_SCAN_BUILD=$CLANG_SCAN_BUILD" >> "$OUTPUT" +echo "CLANG_ANALYZER=$CLANG_ANALYZER" >> "$OUTPUT" +echo "PROFILING_FLAGS=$PROFILING_FLAGS" >> "$OUTPUT" +echo "FIND=$FIND" >> "$OUTPUT" +echo "WATCH=$WATCH" >> "$OUTPUT" +# This will enable some related identifiers for the preprocessor +if test -n "$JEMALLOC"; then + echo "JEMALLOC=1" >> "$OUTPUT" +fi +# Indicates that jemalloc should be enabled using -ljemalloc flag +# The alternative is to porvide a direct link to the library via JEMALLOC_LIB +# and JEMALLOC_INCLUDE +if test -n "$WITH_JEMALLOC_FLAG"; then + echo "WITH_JEMALLOC_FLAG=$WITH_JEMALLOC_FLAG" >> "$OUTPUT" +fi +echo "LUA_PATH=$LUA_PATH" >> "$OUTPUT" |