You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
179 lines
5.8 KiB
179 lines
5.8 KiB
#!/bin/sh
|
|
#
|
|
# 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
|
|
# 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.
|
|
#
|
|
# The PLATFORM_CCFLAGS and PLATFORM_CXXFLAGS might include the following:
|
|
#
|
|
# -DLEVELDB_CSTDATOMIC_PRESENT if <cstdatomic> is present
|
|
# -DLEVELDB_PLATFORM_POSIX for Posix-based platforms
|
|
# -DSNAPPY if the Snappy library is present
|
|
#
|
|
|
|
OUTPUT=$1
|
|
if test -z "$OUTPUT"; then
|
|
echo "usage: $0 <output-filename>" >&2
|
|
exit 1
|
|
fi
|
|
|
|
# Delete existing output, if it exists
|
|
rm -f $OUTPUT
|
|
touch $OUTPUT
|
|
|
|
if test -z "$CC"; then
|
|
CC=cc
|
|
fi
|
|
|
|
if test -z "$CXX"; then
|
|
CXX=g++
|
|
fi
|
|
|
|
# Detect OS
|
|
if test -z "$TARGET_OS"; then
|
|
TARGET_OS=`uname -s`
|
|
fi
|
|
|
|
COMMON_FLAGS=
|
|
CROSS_COMPILE=
|
|
PLATFORM_CCFLAGS=
|
|
PLATFORM_CXXFLAGS=
|
|
PLATFORM_LDFLAGS=
|
|
PLATFORM_SHARED_EXT="so"
|
|
PLATFORM_SHARED_LDFLAGS="-shared -Wl,-soname -Wl,"
|
|
PLATFORM_SHARED_CFLAGS="-fPIC"
|
|
PLATFORM_SHARED_VERSIONED=true
|
|
|
|
# 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="-fno-builtin-memcmp -DOS_MACOSX"
|
|
PLATFORM_SHARED_EXT=dylib
|
|
PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name "
|
|
PORT_FILE=port/port_posix.cc
|
|
;;
|
|
Linux)
|
|
PLATFORM=OS_LINUX
|
|
COMMON_FLAGS="-fno-builtin-memcmp -pthread -DOS_LINUX"
|
|
PLATFORM_LDFLAGS="-pthread"
|
|
PORT_FILE=port/port_posix.cc
|
|
;;
|
|
SunOS)
|
|
PLATFORM=OS_SOLARIS
|
|
COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_SOLARIS"
|
|
PLATFORM_LDFLAGS="-lpthread -lrt"
|
|
PORT_FILE=port/port_posix.cc
|
|
;;
|
|
FreeBSD)
|
|
PLATFORM=OS_FREEBSD
|
|
COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_FREEBSD"
|
|
PLATFORM_LDFLAGS="-lpthread"
|
|
PORT_FILE=port/port_posix.cc
|
|
;;
|
|
NetBSD)
|
|
PLATFORM=OS_NETBSD
|
|
COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_NETBSD"
|
|
PLATFORM_LDFLAGS="-lpthread -lgcc_s"
|
|
PORT_FILE=port/port_posix.cc
|
|
;;
|
|
OpenBSD)
|
|
PLATFORM=OS_OPENBSD
|
|
COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD"
|
|
PLATFORM_LDFLAGS="-pthread"
|
|
PORT_FILE=port/port_posix.cc
|
|
;;
|
|
DragonFly)
|
|
PLATFORM=OS_DRAGONFLYBSD
|
|
COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_DRAGONFLYBSD"
|
|
PLATFORM_LDFLAGS="-lpthread"
|
|
PORT_FILE=port/port_posix.cc
|
|
;;
|
|
OS_ANDROID_CROSSCOMPILE)
|
|
PLATFORM=OS_ANDROID
|
|
COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_ANDROID -DLEVELDB_PLATFORM_POSIX"
|
|
PLATFORM_LDFLAGS="" # All pthread features are in the Android C library
|
|
PORT_FILE=port/port_posix.cc
|
|
CROSS_COMPILE=true
|
|
;;
|
|
*)
|
|
echo "Unknown platform!" >&2
|
|
exit 1
|
|
esac
|
|
|
|
# We want to make a list of all cc files within util, db, table, and helpers
|
|
# except for the test and benchmark files. By default, find will output a list
|
|
# of all files matching either rule, so we need to append -print to make the
|
|
# prune take effect.
|
|
DIRS="util db table"
|
|
set -f # temporarily disable globbing so that our patterns aren't expanded
|
|
PRUNE_TEST="-name *test*.cc -prune"
|
|
PRUNE_BENCH="-name *_bench.cc -prune"
|
|
PORTABLE_FILES=`find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cc' -print | sort | tr "\n" " "`
|
|
set +f # re-enable globbing
|
|
|
|
# The sources consist of the portable files, plus the platform-specific port
|
|
# file.
|
|
echo "SOURCES=$PORTABLE_FILES $PORT_FILE" >> $OUTPUT
|
|
echo "MEMENV_SOURCES=helpers/memenv/memenv.cc" >> $OUTPUT
|
|
|
|
if [ "$CROSS_COMPILE" = "true" ]; then
|
|
# Cross-compiling; do not try any compilation tests.
|
|
true
|
|
else
|
|
# If -std=c++0x works, use <cstdatomic>. Otherwise use port_posix.h.
|
|
$CXX $CFLAGS -std=c++0x -x c++ - -o /dev/null 2>/dev/null <<EOF
|
|
#include <cstdatomic>
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
COMMON_FLAGS="$COMMON_FLAGS -DLEVELDB_PLATFORM_POSIX -DLEVELDB_CSTDATOMIC_PRESENT"
|
|
PLATFORM_CXXFLAGS="-std=c++0x"
|
|
else
|
|
COMMON_FLAGS="$COMMON_FLAGS -DLEVELDB_PLATFORM_POSIX"
|
|
fi
|
|
|
|
# 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"
|
|
fi
|
|
|
|
# Test whether tcmalloc is available
|
|
$CXX $CFLAGS -x c++ - -o /dev/null -ltcmalloc 2>/dev/null <<EOF
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc"
|
|
fi
|
|
fi
|
|
|
|
PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS"
|
|
PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS"
|
|
|
|
echo "CC=$CC" >> $OUTPUT
|
|
echo "CXX=$CXX" >> $OUTPUT
|
|
echo "PLATFORM=$PLATFORM" >> $OUTPUT
|
|
echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> $OUTPUT
|
|
echo "PLATFORM_CCFLAGS=$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
|