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(1) Separate out C++ and CC flags (fixes c_test compilation) (2) Move snappy/perftools detection to script (3) Fix db_bench_sqlite3 and db_bench_tree_db build rules
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,93 +1,145 @@ | ||
| #!/bin/sh | ||
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| # | ||
| # Detects OS we're compiling on and generates build_config.mk, | ||
| # which in turn gets read while processing Makefile. | ||
|
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| # | ||
| # build_config.mk will set the following variables: | ||
| # - PORT_CFLAGS will either set: | ||
| # -DLEVELDB_PLATFORM_POSIX if cstatomic is present | ||
| # -DLEVELDB_PLATFORM_NOATOMIC if it is not | ||
| # - PLATFORM_CFLAGS with compiler flags for the platform | ||
| # - PLATFORM_LDFLAGS with linker flags for the platform | ||
| # PLATFORM_LDFLAGS Linker flags | ||
| # PLATFORM_CCFLAGS C compiler flags | ||
| # PLATFORM_CXXFLAGS C++ compiler flags. Will contain: | ||
| # -DLEVELDB_PLATFORM_POSIX if cstdatomic is present | ||
| # -DLEVELDB_PLATFORM_NOATOMIC if it is not | ||
|
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| SCRIPT_DIR=`dirname $0` | ||
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| # Delete existing build_config.mk | ||
| rm -f build_config.mk | ||
| touch build_config.mk | ||
|
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| if test -z "$CXX"; then | ||
| CXX=g++ | ||
| fi | ||
|
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||
| # Detect OS | ||
| case `uname -s` in | ||
| if test -z "$TARGET_OS"; then | ||
| TARGET_OS=`uname -s` | ||
| fi | ||
|
|
||
| COMMON_FLAGS= | ||
| PLATFORM_CCFLAGS= | ||
| PLATFORM_CXXFLAGS= | ||
| PLATFORM_LDFLAGS= | ||
|
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||
| # On GCC, we pick libc's memcmp over GCC's memcmp via -fno-builtin-memcmp | ||
| case "$TARGET_OS" in | ||
| Darwin) | ||
| PLATFORM=OS_MACOSX | ||
| echo "PLATFORM_CFLAGS=-DOS_MACOSX" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=" >> build_config.mk | ||
| COMMON_FLAGS="-fno-builtin-memcmp -DOS_MACOSX" | ||
| PORT_FILE=port/port_posix.cc | ||
| ;; | ||
| Linux) | ||
| PLATFORM=OS_LINUX | ||
| echo "PLATFORM_CFLAGS=-pthread -DOS_LINUX" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=-pthread" >> build_config.mk | ||
| COMMON_FLAGS="-fno-builtin-memcmp -pthread -DOS_LINUX" | ||
| PLATFORM_LDFLAGS="-pthread" | ||
| PORT_FILE=port/port_posix.cc | ||
| ;; | ||
| SunOS) | ||
| PLATFORM=OS_SOLARIS | ||
| echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_SOLARIS" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=-lpthread -lrt" >> build_config.mk | ||
| COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_SOLARIS" | ||
| PLATFORM_LDFLAGS="-lpthread -lrt" | ||
| PORT_FILE=port/port_posix.cc | ||
| ;; | ||
| FreeBSD) | ||
| PLATFORM=OS_FREEBSD | ||
| echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_FREEBSD" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=-lpthread" >> build_config.mk | ||
| COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_FREEBSD" | ||
| PLATFORM_LDFLAGS="-lpthread" | ||
| PORT_FILE=port/port_posix.cc | ||
| ;; | ||
| NetBSD) | ||
| PLATFORM=OS_NETBSD | ||
| echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_NETBSD" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=-lpthread -lgcc_s" >> build_config.mk | ||
| COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_NETBSD" | ||
| PLATFORM_LDFLAGS="-lpthread -lgcc_s" | ||
| PORT_FILE=port/port_posix.cc | ||
| ;; | ||
| OpenBSD) | ||
| PLATFORM=OS_OPENBSD | ||
| echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_OPENBSD" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=-pthread" >> build_config.mk | ||
| COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD" | ||
| PLATFORM_LDFLAGS="-pthread" | ||
| PORT_FILE=port/port_posix.cc | ||
| ;; | ||
| DragonFly) | ||
| PLATFORM=OS_DRAGONFLYBSD | ||
| echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_DRAGONFLYBSD" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=-lpthread" >> build_config.mk | ||
| COMMON_FLAGS="-fno-builtin-memcmp -D_REENTRANT -DOS_DRAGONFLYBSD" | ||
| PLATFORM_LDFLAGS="-lpthread" | ||
| PORT_FILE=port/port_posix.cc | ||
| ;; | ||
| OS_ANDROID_CROSSCOMPILE) | ||
| PLATFORM="$TARGET_OS" | ||
| COMMON_FLAGS="" | ||
| PLATFORM_LDFLAGS="" | ||
| PORT_FILE=port/port_android.cc | ||
| ;; | ||
| *) | ||
| echo "Unknown platform!" | ||
| exit 1 | ||
| esac | ||
|
|
||
| echo "PLATFORM=$PLATFORM" >> build_config.mk | ||
| # 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="$SCRIPT_DIR/util $SCRIPT_DIR/db $SCRIPT_DIR/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 $PRUNE_BENCH -o -name '*.cc' -print | sort | tr "\n" " "` | ||
| set +f # re-enable globbing | ||
|
|
||
| # On GCC, use libc's memcmp, not GCC's memcmp | ||
| PORT_CFLAGS="-fno-builtin-memcmp" | ||
| # The sources consist of the portable files, plus the platform-specific port | ||
| # file. | ||
| echo "SOURCES=$PORTABLE_FILES $PORT_FILE" >> build_config.mk | ||
| echo "MEMENV_SOURCES=helpers/memenv/memenv.cc" >> build_config.mk | ||
|
|
||
| # Detect C++0x -- this determines whether we'll use port_noatomic.h | ||
| # or port_posix.h by: | ||
| # 1. Rrying to compile with -std=c++0x and including <cstdatomic>. | ||
| # 2. If $CXX returns error code, we know to 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 | ||
| PORT_CFLAGS="$PORT_CFLAGS -DLEVELDB_PLATFORM_POSIX -DLEVELDB_CSTDATOMIC_PRESENT -std=c++0x" | ||
| if [ "$PLATFORM" = "OS_ANDROID_CROSSCOMPILE" ]; then | ||
| # Cross-compiling; do not try any compilation tests. | ||
| true | ||
| else | ||
| PORT_CFLAGS="$PORT_CFLAGS -DLEVELDB_PLATFORM_POSIX" | ||
| fi | ||
| # 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() {} | ||
| # 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 | ||
| echo "SNAPPY=1" >> build_config.mk | ||
| else | ||
| echo "SNAPPY=0" >> build_config.mk | ||
| 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="$PLATFORM_LDFLAGS -ltcmalloc" | ||
| fi | ||
| fi | ||
|
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| echo "PORT_CFLAGS=$PORT_CFLAGS" >> build_config.mk | ||
| PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS" | ||
| PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS" | ||
|
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| echo "PLATFORM=$PLATFORM" >> build_config.mk | ||
| echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> build_config.mk | ||
| echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> build_config.mk | ||
| echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> build_config.mk |
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