| From 23739c6f9694d7fc436967439f170173dbb4c6b4 Mon Sep 17 00:00:00 2001 |
| From: Fabrice Fontaine <fontaine.fabrice@gmail.com> |
| Date: Mon, 24 Feb 2020 10:22:13 +0100 |
| Subject: [PATCH] build_tools/build_detect_platform: fix C++ tests |
| |
| Replace -o /dev/null by -o test.o when testing for C++ features such as |
| -faligned-new otherwise tests will fail with some bugged binutils |
| (https://sourceware.org/bugzilla/show_bug.cgi?id=19526): |
| |
| output/host/bin/xtensa-buildroot-linux-uclibc-g++ -faligned-new -x c++ - -o /dev/null <<EOF |
| struct alignas(1024) t {int a;}; |
| int main() {} |
| EOF |
| /home/fabrice/buildroot/output/host/lib/gcc/xtensa-buildroot-linux-uclibc/8.3.0/../../../../xtensa-buildroot-linux-uclibc/bin/ld: final link failed: file truncated |
| |
| Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> |
| [Upstream status: https://github.com/facebook/rocksdb/pull/6479] |
| --- |
| build_tools/build_detect_platform | 58 +++++++++++++++---------------- |
| 1 file changed, 29 insertions(+), 29 deletions(-) |
| |
| diff --git a/build_tools/build_detect_platform b/build_tools/build_detect_platform |
| index 2535d8124..64a0ae76c 100755 |
| --- a/build_tools/build_detect_platform |
| +++ b/build_tools/build_detect_platform |
| @@ -245,7 +245,7 @@ if [ "$CROSS_COMPILE" = "true" -o "$FBCODE_BUILD" = "true" ]; then |
| else |
| if ! test $ROCKSDB_DISABLE_FALLOCATE; then |
| # Test whether fallocate is available |
| - $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <fcntl.h> |
| #include <linux/falloc.h> |
| int main() { |
| @@ -261,7 +261,7 @@ EOF |
| 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 |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <snappy.h> |
| int main() {} |
| EOF |
| @@ -276,7 +276,7 @@ EOF |
| # 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 |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null << EOF |
| #include <gflags/gflags.h> |
| int main() {} |
| EOF |
| @@ -285,7 +285,7 @@ EOF |
| PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags" |
| else |
| # check if namespace is google |
| - $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null << EOF |
| #include <gflags/gflags.h> |
| using namespace google; |
| int main() {} |
| @@ -299,7 +299,7 @@ EOF |
| |
| 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 |
| + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <zlib.h> |
| int main() {} |
| EOF |
| @@ -312,7 +312,7 @@ EOF |
| |
| 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 |
| + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <bzlib.h> |
| int main() {} |
| EOF |
| @@ -325,7 +325,7 @@ EOF |
| |
| 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 |
| + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <lz4.h> |
| #include <lz4hc.h> |
| int main() {} |
| @@ -339,7 +339,7 @@ EOF |
| |
| 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 |
| + $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <zstd.h> |
| int main() {} |
| EOF |
| @@ -352,7 +352,7 @@ EOF |
| |
| if ! test $ROCKSDB_DISABLE_NUMA; then |
| # Test whether numa is available |
| - $CXX $CFLAGS -x c++ - -o /dev/null -lnuma 2>/dev/null <<EOF |
| + $CXX $CFLAGS -x c++ - -o test.o -lnuma 2>/dev/null <<EOF |
| #include <numa.h> |
| #include <numaif.h> |
| int main() {} |
| @@ -366,7 +366,7 @@ EOF |
| |
| if ! test $ROCKSDB_DISABLE_TBB; then |
| # Test whether tbb is available |
| - $CXX $CFLAGS $LDFLAGS -x c++ - -o /dev/null -ltbb 2>/dev/null <<EOF |
| + $CXX $CFLAGS $LDFLAGS -x c++ - -o test.o -ltbb 2>/dev/null <<EOF |
| #include <tbb/tbb.h> |
| int main() {} |
| EOF |
| @@ -379,7 +379,7 @@ EOF |
| |
| if ! test $ROCKSDB_DISABLE_JEMALLOC; then |
| # Test whether jemalloc is available |
| - if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o /dev/null -ljemalloc \ |
| + if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o test.o -ljemalloc \ |
| 2>/dev/null; then |
| # This will enable some preprocessor identifiers in the Makefile |
| JEMALLOC=1 |
| @@ -400,7 +400,7 @@ EOF |
| 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 \ |
| + if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o test.o \ |
| -ltcmalloc 2>/dev/null; then |
| PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc" |
| JAVA_LDFLAGS="$JAVA_LDFLAGS -ltcmalloc" |
| @@ -409,7 +409,7 @@ EOF |
| |
| 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 |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <malloc.h> |
| int main() { |
| size_t res = malloc_usable_size(0); |
| @@ -424,7 +424,7 @@ EOF |
| |
| 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 |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <pthread.h> |
| int main() { |
| int x = PTHREAD_MUTEX_ADAPTIVE_NP; |
| @@ -439,7 +439,7 @@ EOF |
| |
| if ! test $ROCKSDB_DISABLE_BACKTRACE; then |
| # Test whether backtrace is available |
| - $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <execinfo.h> |
| int main() { |
| void* frames[1]; |
| @@ -451,7 +451,7 @@ EOF |
| COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_BACKTRACE" |
| else |
| # Test whether execinfo library is installed |
| - $CXX $CFLAGS -lexecinfo -x c++ - -o /dev/null 2>/dev/null <<EOF |
| + $CXX $CFLAGS -lexecinfo -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <execinfo.h> |
| int main() { |
| void* frames[1]; |
| @@ -468,7 +468,7 @@ EOF |
| |
| if ! test $ROCKSDB_DISABLE_PG; then |
| # Test if -pg is supported |
| - $CXX $CFLAGS -pg -x c++ - -o /dev/null 2>/dev/null <<EOF |
| + $CXX $CFLAGS -pg -x c++ - -o test.o 2>/dev/null <<EOF |
| int main() { |
| return 0; |
| } |
| @@ -480,7 +480,7 @@ EOF |
| |
| 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 |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <fcntl.h> |
| int main() { |
| int fd = open("/dev/null", 0); |
| @@ -494,7 +494,7 @@ EOF |
| |
| if ! test $ROCKSDB_DISABLE_SCHED_GETCPU; then |
| # Test whether sched_getcpu is supported |
| - $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <sched.h> |
| int main() { |
| int cpuid = sched_getcpu(); |
| @@ -508,7 +508,7 @@ EOF |
| |
| if ! test $ROCKSDB_DISABLE_AUXV_GETAUXVAL; then |
| # Test whether getauxval is supported |
| - $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF |
| + $CXX $CFLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <sys/auxv.h> |
| int main() { |
| uint64_t auxv = getauxval(AT_HWCAP); |
| @@ -522,7 +522,7 @@ EOF |
| |
| 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 |
| + $CXX $PLATFORM_CXXFLAGS -faligned-new -x c++ - -o test.o 2>/dev/null <<EOF |
| struct alignas(1024) t {int a;}; |
| int main() {} |
| EOF |
| @@ -536,7 +536,7 @@ fi |
| # -Wshorten-64-to-32 breaks compilation on FreeBSD i386 |
| if ! [ "$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 |
| + $CXX $CFLAGS -x c++ - -o test.o -Wshorten-64-to-32 2>/dev/null <<EOF |
| int main() {} |
| EOF |
| if [ "$?" = 0 ]; then |
| @@ -603,7 +603,7 @@ if test "$TRY_SSE_ETC"; then |
| TRY_AVX2="-mavx2" |
| fi |
| |
| -$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_SSE42 -x c++ - -o /dev/null 2>/dev/null <<EOF |
| +$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_SSE42 -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <cstdint> |
| #include <nmmintrin.h> |
| int main() { |
| @@ -617,7 +617,7 @@ elif test "$USE_SSE"; then |
| echo "warning: USE_SSE specified but compiler could not use SSE intrinsics, disabling" >&2 |
| fi |
| |
| -$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_PCLMUL -x c++ - -o /dev/null 2>/dev/null <<EOF |
| +$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_PCLMUL -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <cstdint> |
| #include <wmmintrin.h> |
| int main() { |
| @@ -634,7 +634,7 @@ elif test "$USE_SSE"; then |
| echo "warning: USE_SSE specified but compiler could not use PCLMUL intrinsics, disabling" >&2 |
| fi |
| |
| -$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_AVX2 -x c++ - -o /dev/null 2>/dev/null <<EOF |
| +$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_AVX2 -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <cstdint> |
| #include <immintrin.h> |
| int main() { |
| @@ -649,7 +649,7 @@ elif test "$USE_SSE"; then |
| echo "warning: USE_SSE specified but compiler could not use AVX2 intrinsics, disabling" >&2 |
| fi |
| |
| -$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF |
| +$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #include <cstdint> |
| int main() { |
| uint64_t a = 0xffffFFFFffffFFFF; |
| @@ -666,7 +666,7 @@ fi |
| # succeed because the cross-compiler flags are added by the Makefile, not this |
| # script. |
| if [ "$PLATFORM" != IOS ]; then |
| - $CXX $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF |
| + $CXX $COMMON_FLAGS -x c++ - -o test.o 2>/dev/null <<EOF |
| #if defined(_MSC_VER) && !defined(__thread) |
| #define __thread __declspec(thread) |
| #endif |
| @@ -685,7 +685,7 @@ if [ "$FBCODE_BUILD" != "true" -a "$PLATFORM" = OS_LINUX ]; then |
| void dummy_func() {} |
| EOF |
| if [ "$?" = 0 ]; then |
| - $CXX $COMMON_FLAGS $PLATFORM_SHARED_LDFLAGS test_dl.o -o /dev/null 2>/dev/null |
| + $CXX $COMMON_FLAGS $PLATFORM_SHARED_LDFLAGS test_dl.o -o test.o 2>/dev/null |
| if [ "$?" = 0 ]; then |
| EXEC_LDFLAGS+="-ldl" |
| rm -f test_dl.o |
| -- |
| 2.25.0 |
| |
