Differential D580 Diff 1490 src/leveldb/build_detect_platform

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src/leveldb/build_detect_platform

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PLATFORM_CCFLAGS=		PLATFORM_CCFLAGS=
PLATFORM_CXXFLAGS=		PLATFORM_CXXFLAGS=
PLATFORM_LDFLAGS=		PLATFORM_LDFLAGS=
PLATFORM_LIBS=		PLATFORM_LIBS=
PLATFORM_SHARED_EXT="so"		PLATFORM_SHARED_EXT="so"
PLATFORM_SHARED_LDFLAGS="-shared -Wl,-soname -Wl,"		PLATFORM_SHARED_LDFLAGS="-shared -Wl,-soname -Wl,"
PLATFORM_SHARED_CFLAGS="-fPIC"		PLATFORM_SHARED_CFLAGS="-fPIC"
PLATFORM_SHARED_VERSIONED=true		PLATFORM_SHARED_VERSIONED=true
		PLATFORM_SSEFLAGS=

MEMCMP_FLAG=		MEMCMP_FLAG=
if [ "$CXX" = "g++" ]; then		if [ "$CXX" = "g++" ]; then
# Use libc's memcmp instead of GCC's memcmp. This results in ~40%		# Use libc's memcmp instead of GCC's memcmp. This results in ~40%
# performance improvement on readrandom under gcc 4.4.3 on Linux/x86.		# performance improvement on readrandom under gcc 4.4.3 on Linux/x86.
MEMCMP_FLAG="-fno-builtin-memcmp"		MEMCMP_FLAG="-fno-builtin-memcmp"
fi		fi

case "$TARGET_OS" in		case "$TARGET_OS" in
CYGWIN_*)		CYGWIN_*)
PLATFORM=OS_LINUX		PLATFORM=OS_LINUX
COMMON_FLAGS="$MEMCMP_FLAG -lpthread -DOS_LINUX -DCYGWIN"		COMMON_FLAGS="$MEMCMP_FLAG -lpthread -DOS_LINUX -DCYGWIN"
PLATFORM_LDFLAGS="-lpthread"		PLATFORM_LDFLAGS="-lpthread"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
Darwin)		Darwin)
PLATFORM=OS_MACOSX		PLATFORM=OS_MACOSX
COMMON_FLAGS="$MEMCMP_FLAG -DOS_MACOSX"		COMMON_FLAGS="$MEMCMP_FLAG -DOS_MACOSX"
PLATFORM_SHARED_EXT=dylib		PLATFORM_SHARED_EXT=dylib
[ -z "$INSTALL_PATH" ] && INSTALL_PATH=`pwd`		[ -z "$INSTALL_PATH" ] && INSTALL_PATH=`pwd`
PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name $INSTALL_PATH/"		PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name $INSTALL_PATH/"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
Linux)		Linux)
PLATFORM=OS_LINUX		PLATFORM=OS_LINUX
COMMON_FLAGS="$MEMCMP_FLAG -pthread -DOS_LINUX"		COMMON_FLAGS="$MEMCMP_FLAG -pthread -DOS_LINUX"
PLATFORM_LDFLAGS="-pthread"		PLATFORM_LDFLAGS="-pthread"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
SunOS)		SunOS)
PLATFORM=OS_SOLARIS		PLATFORM=OS_SOLARIS
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_SOLARIS"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_SOLARIS"
PLATFORM_LIBS="-lpthread -lrt"		PLATFORM_LIBS="-lpthread -lrt"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
FreeBSD)		FreeBSD)
PLATFORM=OS_FREEBSD		PLATFORM=OS_FREEBSD
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_FREEBSD"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_FREEBSD"
PLATFORM_LIBS="-lpthread"		PLATFORM_LIBS="-lpthread"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
GNU/kFreeBSD)		GNU/kFreeBSD)
PLATFORM=OS_KFREEBSD		PLATFORM=OS_KFREEBSD
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_KFREEBSD"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_KFREEBSD"
PLATFORM_LIBS="-lpthread"		PLATFORM_LIBS="-lpthread"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
;;		;;
NetBSD)		NetBSD)
PLATFORM=OS_NETBSD		PLATFORM=OS_NETBSD
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_NETBSD"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_NETBSD"
PLATFORM_LIBS="-lpthread -lgcc_s"		PLATFORM_LIBS="-lpthread -lgcc_s"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
OpenBSD)		OpenBSD)
PLATFORM=OS_OPENBSD		PLATFORM=OS_OPENBSD
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_OPENBSD"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_OPENBSD"
PLATFORM_LDFLAGS="-pthread"		PLATFORM_LDFLAGS="-pthread"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
DragonFly)		DragonFly)
PLATFORM=OS_DRAGONFLYBSD		PLATFORM=OS_DRAGONFLYBSD
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_DRAGONFLYBSD"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_DRAGONFLYBSD"
PLATFORM_LIBS="-lpthread"		PLATFORM_LIBS="-lpthread"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
;;		;;
OS_ANDROID_CROSSCOMPILE)		OS_ANDROID_CROSSCOMPILE)
PLATFORM=OS_ANDROID		PLATFORM=OS_ANDROID
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_ANDROID -DLEVELDB_PLATFORM_POSIX"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_ANDROID -DLEVELDB_PLATFORM_POSIX"
PLATFORM_LDFLAGS="" # All pthread features are in the Android C library		PLATFORM_LDFLAGS="" # All pthread features are in the Android C library
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
CROSS_COMPILE=true		CROSS_COMPILE=true
;;		;;
HP-UX)		HP-UX)
PLATFORM=OS_HPUX		PLATFORM=OS_HPUX
COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_HPUX"		COMMON_FLAGS="$MEMCMP_FLAG -D_REENTRANT -DOS_HPUX"
PLATFORM_LDFLAGS="-pthread"		PLATFORM_LDFLAGS="-pthread"
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
# man ld: +h internal_name		# man ld: +h internal_name
PLATFORM_SHARED_LDFLAGS="-shared -Wl,+h -Wl,"		PLATFORM_SHARED_LDFLAGS="-shared -Wl,+h -Wl,"
;;		;;
IOS)		IOS)
PLATFORM=IOS		PLATFORM=IOS
COMMON_FLAGS="$MEMCMP_FLAG -DOS_MACOSX"		COMMON_FLAGS="$MEMCMP_FLAG -DOS_MACOSX"
[ -z "$INSTALL_PATH" ] && INSTALL_PATH=`pwd`		[ -z "$INSTALL_PATH" ] && INSTALL_PATH=`pwd`
PORT_FILE=port/port_posix.cc		PORT_FILE=port/port_posix.cc
		PORT_SSE_FILE=port/port_posix_sse.cc
PLATFORM_SHARED_EXT=		PLATFORM_SHARED_EXT=
PLATFORM_SHARED_LDFLAGS=		PLATFORM_SHARED_LDFLAGS=
PLATFORM_SHARED_CFLAGS=		PLATFORM_SHARED_CFLAGS=
PLATFORM_SHARED_VERSIONED=		PLATFORM_SHARED_VERSIONED=
;;		;;
OS_WINDOWS_CROSSCOMPILE \| NATIVE_WINDOWS)		OS_WINDOWS_CROSSCOMPILE \| NATIVE_WINDOWS)
PLATFORM=OS_WINDOWS		PLATFORM=OS_WINDOWS
COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_WINDOWS -DLEVELDB_PLATFORM_WINDOWS -DWINVER=0x0500 -D__USE_MINGW_ANSI_STDIO=1"		COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_WINDOWS -DLEVELDB_PLATFORM_WINDOWS -DWINVER=0x0500 -D__USE_MINGW_ANSI_STDIO=1"
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PRUNE_BENCH="-name *_bench.cc -prune"		PRUNE_BENCH="-name *_bench.cc -prune"
PRUNE_TOOL="-name leveldbutil.cc -prune"		PRUNE_TOOL="-name leveldbutil.cc -prune"
PORTABLE_FILES=`find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o $PRUNE_TOOL -o -name '*.cc' -print \| sort \| sed "s,^$PREFIX/,," \| tr "\n" " "`		PORTABLE_FILES=`find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o $PRUNE_TOOL -o -name '*.cc' -print \| sort \| sed "s,^$PREFIX/,," \| tr "\n" " "`

set +f # re-enable globbing		set +f # re-enable globbing

# The sources consist of the portable files, plus the platform-specific port		# The sources consist of the portable files, plus the platform-specific port
# file.		# file.
echo "SOURCES=$PORTABLE_FILES $PORT_FILE" >> $OUTPUT		echo "SOURCES=$PORTABLE_FILES $PORT_FILE $PORT_SSE_FILE" >> $OUTPUT
echo "MEMENV_SOURCES=helpers/memenv/memenv.cc" >> $OUTPUT		echo "MEMENV_SOURCES=helpers/memenv/memenv.cc" >> $OUTPUT

if [ "$CROSS_COMPILE" = "true" ]; then		if [ "$CROSS_COMPILE" = "true" ]; then
# Cross-compiling; do not try any compilation tests.		# Cross-compiling; do not try any compilation tests.
true		true
else		else
CXXOUTPUT="${TMPDIR}/leveldb_build_detect_platform-cxx.$$"		CXXOUTPUT="${TMPDIR}/leveldb_build_detect_platform-cxx.$$"

Show All 14 Lines	EOF
$CXX $CXXFLAGS -x c++ - -o $CXXOUTPUT -ltcmalloc 2>/dev/null <<EOF		$CXX $CXXFLAGS -x c++ - -o $CXXOUTPUT -ltcmalloc 2>/dev/null <<EOF
int main() {}		int main() {}
EOF		EOF
if [ "$?" = 0 ]; then		if [ "$?" = 0 ]; then
PLATFORM_LIBS="$PLATFORM_LIBS -ltcmalloc"		PLATFORM_LIBS="$PLATFORM_LIBS -ltcmalloc"
fi		fi

rm -f $CXXOUTPUT 2>/dev/null		rm -f $CXXOUTPUT 2>/dev/null

		# Test if gcc SSE 4.2 is supported
		$CXX $CXXFLAGS -x c++ - -o $CXXOUTPUT -msse4.2 2>/dev/null <<EOF
		int main() {}
		EOF
		if [ "$?" = 0 ]; then
		PLATFORM_SSEFLAGS="-msse4.2"
		fi

		rm -f $CXXOUTPUT 2>/dev/null
		fi

		# Use the SSE 4.2 CRC32C intrinsics iff runtime checks indicate compiler supports them.
		if [ -n "$PLATFORM_SSEFLAGS" ]; then
		PLATFORM_SSEFLAGS="$PLATFORM_SSEFLAGS -DLEVELDB_PLATFORM_POSIX_SSE"
fi		fi

PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS"		PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS"
PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS"		PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS"

echo "CC=$CC" >> $OUTPUT		echo "CC=$CC" >> $OUTPUT
echo "CXX=$CXX" >> $OUTPUT		echo "CXX=$CXX" >> $OUTPUT
echo "PLATFORM=$PLATFORM" >> $OUTPUT		echo "PLATFORM=$PLATFORM" >> $OUTPUT
echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> $OUTPUT		echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> $OUTPUT
echo "PLATFORM_LIBS=$PLATFORM_LIBS" >> $OUTPUT		echo "PLATFORM_LIBS=$PLATFORM_LIBS" >> $OUTPUT
echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> $OUTPUT		echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> $OUTPUT
echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> $OUTPUT		echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> $OUTPUT
		echo "PLATFORM_SSEFLAGS=$PLATFORM_SSEFLAGS" >> $OUTPUT
echo "PLATFORM_SHARED_CFLAGS=$PLATFORM_SHARED_CFLAGS" >> $OUTPUT		echo "PLATFORM_SHARED_CFLAGS=$PLATFORM_SHARED_CFLAGS" >> $OUTPUT
echo "PLATFORM_SHARED_EXT=$PLATFORM_SHARED_EXT" >> $OUTPUT		echo "PLATFORM_SHARED_EXT=$PLATFORM_SHARED_EXT" >> $OUTPUT
echo "PLATFORM_SHARED_LDFLAGS=$PLATFORM_SHARED_LDFLAGS" >> $OUTPUT		echo "PLATFORM_SHARED_LDFLAGS=$PLATFORM_SHARED_LDFLAGS" >> $OUTPUT
echo "PLATFORM_SHARED_VERSIONED=$PLATFORM_SHARED_VERSIONED" >> $OUTPUT		echo "PLATFORM_SHARED_VERSIONED=$PLATFORM_SHARED_VERSIONED" >> $OUTPUT